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fa37b408 | 1 | /* |
04f48a68 | 2 | * Copyright (c) 2008-2017 Nicira, Inc. |
fa37b408 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
03e1125c | 18 | #include <ctype.h> |
dc4762ed | 19 | #include <errno.h> |
fa37b408 | 20 | #include <inttypes.h> |
6ca00f6f ETN |
21 | #include <sys/types.h> |
22 | #include <netinet/in.h> | |
b459a924 | 23 | #include <netinet/icmp6.h> |
fa37b408 | 24 | #include <stdlib.h> |
25d436fb | 25 | #include "bitmap.h" |
daff3353 | 26 | #include "bundle.h" |
10a24935 | 27 | #include "byte-order.h" |
d8ae4d67 | 28 | #include "classifier.h" |
75a75043 | 29 | #include "learn.h" |
9e1fd49b | 30 | #include "multipath.h" |
6c038611 | 31 | #include "netdev.h" |
b6c9e612 | 32 | #include "nx-match.h" |
18ac06d3 | 33 | #include "id-pool.h" |
d271907f BW |
34 | #include "openflow/netronome-ext.h" |
35 | #include "openvswitch/dynamic-string.h" | |
50f96b10 | 36 | #include "openvswitch/json.h" |
d271907f | 37 | #include "openvswitch/meta-flow.h" |
b598f214 | 38 | #include "openvswitch/ofp-actions.h" |
d271907f BW |
39 | #include "openvswitch/ofp-errors.h" |
40 | #include "openvswitch/ofp-msgs.h" | |
25d436fb | 41 | #include "openvswitch/ofp-print.h" |
66bd43fa | 42 | #include "openvswitch/ofp-prop.h" |
f4248336 | 43 | #include "openvswitch/ofp-util.h" |
64c96779 | 44 | #include "openvswitch/ofpbuf.h" |
d271907f BW |
45 | #include "openvswitch/type-props.h" |
46 | #include "openvswitch/vlog.h" | |
d6e3feb5 | 47 | #include "openflow/intel-ext.h" |
fa37b408 BP |
48 | #include "packets.h" |
49 | #include "random.h" | |
6159c531 | 50 | #include "tun-metadata.h" |
4ffd1b43 | 51 | #include "unaligned.h" |
ee89ea7b | 52 | #include "util.h" |
d5dc60f0 | 53 | #include "uuid.h" |
fa37b408 | 54 | |
d98e6007 | 55 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
56 | |
57 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
58 | * in the peer and so there's not much point in showing a lot of them. */ | |
59 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
60 | ||
de7d3c07 SJ |
61 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
62 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
63 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
64 | ovs_be32 config, enum ofp_version); | |
65 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
66 | enum ofputil_table_eviction, | |
de7d3c07 | 67 | enum ofputil_table_vacancy, |
82c22d34 | 68 | enum ofp_version); |
3c1bb396 | 69 | |
0596e897 BP |
70 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
71 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
72 | * is wildcarded. | |
73 | * | |
74 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
75 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
76 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
77 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
78 | * wildcarded. */ | |
79 | ovs_be32 | |
80 | ofputil_wcbits_to_netmask(int wcbits) | |
81 | { | |
82 | wcbits &= 0x3f; | |
83 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
84 | } | |
85 | ||
86 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
87 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
88 | * between 0 and 32 inclusive. | |
89 | * | |
90 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
91 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
92 | int |
93 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
94 | { | |
aad29cd1 | 95 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
96 | } |
97 | ||
eec25dc1 | 98 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 99 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
100 | * responsibility to handle the special case where the flow match's dl_vlan is |
101 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 102 | void |
eec25dc1 | 103 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 104 | { |
2482b0b0 | 105 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 39); |
a877206f | 106 | |
81a76618 | 107 | /* Initialize most of wc. */ |
f9ba8dad | 108 | flow_wildcards_init_catchall(wc); |
bad68a99 | 109 | |
0bdc4bec | 110 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 111 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 112 | } |
5d9499c4 BP |
113 | |
114 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 115 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 116 | } |
7257b535 | 117 | |
851d3105 | 118 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 119 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 120 | } |
26720e24 BP |
121 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
122 | >> OFPFW10_NW_SRC_SHIFT); | |
123 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
124 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 125 | |
eec25dc1 | 126 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 127 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 128 | } |
eec25dc1 | 129 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 130 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
131 | } |
132 | ||
eec25dc1 | 133 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 134 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 135 | } |
eec25dc1 | 136 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 137 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 138 | } |
e2170cff | 139 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 140 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 141 | } |
d8ae4d67 | 142 | |
eb6f28db | 143 | /* VLAN TCI mask. */ |
eec25dc1 | 144 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
f0fb825a | 145 | wc->masks.vlans[0].tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 146 | } |
eec25dc1 | 147 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
f0fb825a | 148 | wc->masks.vlans[0].tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
149 | } |
150 | } | |
151 | ||
81a76618 | 152 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 153 | void |
81a76618 BP |
154 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
155 | struct match *match) | |
156 | { | |
157 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
158 | ||
159 | /* Initialize match->wc. */ | |
296e07ac | 160 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 | 161 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
dbece029 | 162 | memset(&match->tun_md, 0, sizeof match->tun_md); |
81a76618 | 163 | |
3d4b2e6e JS |
164 | /* If any fields, except in_port, are matched, then we also need to match |
165 | * on the Ethernet packet_type. */ | |
166 | const uint32_t ofpfw_data_bits = (OFPFW10_NW_TOS | OFPFW10_NW_PROTO | |
167 | | OFPFW10_TP_SRC | OFPFW10_TP_DST | |
168 | | OFPFW10_DL_SRC | OFPFW10_DL_DST | |
169 | | OFPFW10_DL_TYPE | |
170 | | OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP); | |
171 | if ((ofpfw & ofpfw_data_bits) != ofpfw_data_bits | |
172 | || ofputil_wcbits_to_netmask(ofpfw >> OFPFW10_NW_SRC_SHIFT) | |
173 | || ofputil_wcbits_to_netmask(ofpfw >> OFPFW10_NW_DST_SHIFT)) { | |
174 | match_set_default_packet_type(match); | |
175 | } | |
176 | ||
81a76618 BP |
177 | /* Initialize most of match->flow. */ |
178 | match->flow.nw_src = ofmatch->nw_src; | |
179 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 180 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
181 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
182 | match->flow.tp_src = ofmatch->tp_src; | |
183 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
184 | match->flow.dl_src = ofmatch->dl_src; |
185 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
186 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
187 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 188 | |
66642cb4 | 189 | /* Translate VLANs. */ |
0c436519 | 190 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 191 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
192 | /* Match only packets without 802.1Q header. |
193 | * | |
eec25dc1 | 194 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 195 | * |
eec25dc1 | 196 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
197 | * because we can't have a specific PCP without an 802.1Q header. |
198 | * However, older versions of OVS treated this as matching packets | |
199 | * withut an 802.1Q header, so we do here too. */ | |
f0fb825a EG |
200 | match->flow.vlans[0].tci = htons(0); |
201 | match->wc.masks.vlans[0].tci = htons(0xffff); | |
47271d0d BP |
202 | } else { |
203 | ovs_be16 vid, pcp, tci; | |
bf062576 | 204 | uint16_t hpcp; |
47271d0d | 205 | |
81a76618 | 206 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
207 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
208 | pcp = htons(hpcp); | |
47271d0d | 209 | tci = vid | pcp | htons(VLAN_CFI); |
f0fb825a | 210 | match->flow.vlans[0].tci = tci & match->wc.masks.vlans[0].tci; |
66642cb4 BP |
211 | } |
212 | ||
d8ae4d67 | 213 | /* Clean up. */ |
81a76618 | 214 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
215 | } |
216 | ||
81a76618 | 217 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 218 | void |
81a76618 BP |
219 | ofputil_match_to_ofp10_match(const struct match *match, |
220 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 221 | { |
81a76618 | 222 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 223 | uint32_t ofpfw; |
d8ae4d67 | 224 | |
66642cb4 | 225 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 226 | ofpfw = 0; |
4e022ec0 | 227 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
228 | ofpfw |= OFPFW10_IN_PORT; |
229 | } | |
26720e24 | 230 | if (!wc->masks.dl_type) { |
27cafc5f BP |
231 | ofpfw |= OFPFW10_DL_TYPE; |
232 | } | |
26720e24 | 233 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
234 | ofpfw |= OFPFW10_NW_PROTO; |
235 | } | |
26720e24 | 236 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 237 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 238 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 239 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 240 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 241 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 242 | } |
26720e24 | 243 | if (!wc->masks.tp_src) { |
eec25dc1 | 244 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 245 | } |
26720e24 | 246 | if (!wc->masks.tp_dst) { |
eec25dc1 | 247 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 248 | } |
26720e24 | 249 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 250 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 251 | } |
26720e24 | 252 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 253 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 254 | } |
ff9d3826 | 255 | |
66642cb4 | 256 | /* Translate VLANs. */ |
81a76618 BP |
257 | ofmatch->dl_vlan = htons(0); |
258 | ofmatch->dl_vlan_pcp = 0; | |
f0fb825a | 259 | if (match->wc.masks.vlans[0].tci == htons(0)) { |
eec25dc1 | 260 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
f0fb825a EG |
261 | } else if (match->wc.masks.vlans[0].tci & htons(VLAN_CFI) |
262 | && !(match->flow.vlans[0].tci & htons(VLAN_CFI))) { | |
81a76618 | 263 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); |
66642cb4 | 264 | } else { |
f0fb825a | 265 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 266 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 267 | } else { |
f0fb825a EG |
268 | ofmatch->dl_vlan = |
269 | htons(vlan_tci_to_vid(match->flow.vlans[0].tci)); | |
66642cb4 BP |
270 | } |
271 | ||
f0fb825a | 272 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 273 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 274 | } else { |
f0fb825a | 275 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlans[0].tci); |
66642cb4 BP |
276 | } |
277 | } | |
278 | ||
279 | /* Compose most of the match structure. */ | |
81a76618 | 280 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 281 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
282 | ofmatch->dl_src = match->flow.dl_src; |
283 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
284 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
285 | ofmatch->nw_src = match->flow.nw_src; | |
286 | ofmatch->nw_dst = match->flow.nw_dst; | |
287 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
288 | ofmatch->nw_proto = match->flow.nw_proto; | |
289 | ofmatch->tp_src = match->flow.tp_src; | |
290 | ofmatch->tp_dst = match->flow.tp_dst; | |
291 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
292 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
293 | } |
294 | ||
aa319503 | 295 | enum ofperr |
8d8ab6c2 | 296 | ofputil_pull_ofp11_match(struct ofpbuf *buf, const struct tun_table *tun_table, |
3cddeff0 | 297 | const struct vl_mff_map *vl_mff_map, |
8d8ab6c2 | 298 | struct match *match, uint16_t *padded_match_len) |
aa319503 | 299 | { |
6fd6ed71 | 300 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 301 | uint16_t match_len; |
aa319503 | 302 | |
6fd6ed71 | 303 | if (buf->size < sizeof *omh) { |
aa319503 BP |
304 | return OFPERR_OFPBMC_BAD_LEN; |
305 | } | |
306 | ||
36a16881 SH |
307 | match_len = ntohs(omh->length); |
308 | ||
aa319503 | 309 | switch (ntohs(omh->type)) { |
36a16881 SH |
310 | case OFPMT_STANDARD: { |
311 | struct ofp11_match *om; | |
312 | ||
6fd6ed71 | 313 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
314 | return OFPERR_OFPBMC_BAD_LEN; |
315 | } | |
316 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
317 | if (padded_match_len) { |
318 | *padded_match_len = match_len; | |
319 | } | |
81a76618 | 320 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
321 | } |
322 | ||
323 | case OFPMT_OXM: | |
324 | if (padded_match_len) { | |
325 | *padded_match_len = ROUND_UP(match_len, 8); | |
326 | } | |
d7892c81 | 327 | return oxm_pull_match(buf, false, tun_table, vl_mff_map, match); |
aa319503 BP |
328 | |
329 | default: | |
330 | return OFPERR_OFPBMC_BAD_TYPE; | |
331 | } | |
332 | } | |
333 | ||
3f0f48cf YT |
334 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
335 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 336 | enum ofperr |
81a76618 BP |
337 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
338 | struct match *match) | |
410698cf | 339 | { |
81a76618 | 340 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 341 | bool ipv4, arp, rarp; |
410698cf | 342 | |
81a76618 | 343 | match_init_catchall(match); |
3d4b2e6e | 344 | match->flow.tunnel.metadata.tab = NULL; |
410698cf BP |
345 | |
346 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 347 | ofp_port_t ofp_port; |
410698cf BP |
348 | enum ofperr error; |
349 | ||
81a76618 | 350 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
351 | if (error) { |
352 | return OFPERR_OFPBMC_BAD_VALUE; | |
353 | } | |
81a76618 | 354 | match_set_in_port(match, ofp_port); |
410698cf BP |
355 | } |
356 | ||
3d4b2e6e JS |
357 | struct eth_addr dl_src_mask = eth_addr_invert(ofmatch->dl_src_mask); |
358 | struct eth_addr dl_dst_mask = eth_addr_invert(ofmatch->dl_dst_mask); | |
359 | if (!eth_addr_is_zero(dl_src_mask) || !eth_addr_is_zero(dl_dst_mask)) { | |
360 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); | |
361 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); | |
362 | match_set_default_packet_type(match); | |
363 | } | |
410698cf BP |
364 | |
365 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 366 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 367 | /* Match only packets without a VLAN tag. */ |
f0fb825a EG |
368 | match->flow.vlans[0].tci = htons(0); |
369 | match->wc.masks.vlans[0].tci = OVS_BE16_MAX; | |
410698cf | 370 | } else { |
81a76618 | 371 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 372 | /* Match any packet with a VLAN tag regardless of VID. */ |
f0fb825a EG |
373 | match->flow.vlans[0].tci = htons(VLAN_CFI); |
374 | match->wc.masks.vlans[0].tci = htons(VLAN_CFI); | |
81a76618 | 375 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { |
410698cf | 376 | /* Match only packets with the specified VLAN VID. */ |
f0fb825a EG |
377 | match->flow.vlans[0].tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
378 | match->wc.masks.vlans[0].tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
379 | } else { |
380 | /* Invalid VID. */ | |
381 | return OFPERR_OFPBMC_BAD_VALUE; | |
382 | } | |
383 | ||
384 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 | 385 | if (ofmatch->dl_vlan_pcp <= 7) { |
f0fb825a | 386 | match->flow.vlans[0].tci |= htons(ofmatch->dl_vlan_pcp |
81a76618 | 387 | << VLAN_PCP_SHIFT); |
f0fb825a | 388 | match->wc.masks.vlans[0].tci |= htons(VLAN_PCP_MASK); |
410698cf BP |
389 | } else { |
390 | /* Invalid PCP. */ | |
391 | return OFPERR_OFPBMC_BAD_VALUE; | |
392 | } | |
393 | } | |
394 | } | |
3d4b2e6e | 395 | match_set_default_packet_type(match); |
410698cf BP |
396 | } |
397 | ||
398 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
399 | match_set_dl_type(match, |
400 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
3d4b2e6e | 401 | match_set_default_packet_type(match); |
410698cf BP |
402 | } |
403 | ||
81a76618 BP |
404 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
405 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 406 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
407 | |
408 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 409 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
410 | /* Invalid TOS. */ |
411 | return OFPERR_OFPBMC_BAD_VALUE; | |
412 | } | |
413 | ||
81a76618 | 414 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
415 | } |
416 | ||
8087f5ff | 417 | if (ipv4 || arp || rarp) { |
410698cf | 418 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 419 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 420 | } |
81a76618 BP |
421 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
422 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
423 | } |
424 | ||
425 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
426 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 427 | switch (match->flow.nw_proto) { |
410698cf BP |
428 | case IPPROTO_ICMP: |
429 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
430 | * | |
431 | * The tp_src and tp_dst fields will be ignored unless the | |
432 | * network protocol specified is as TCP, UDP or SCTP. | |
433 | * | |
434 | * but I'm pretty sure we should support ICMP too, otherwise | |
435 | * that's a regression from OF1.0. */ | |
436 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 437 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 438 | if (icmp_type < 0x100) { |
81a76618 | 439 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
440 | } else { |
441 | return OFPERR_OFPBMC_BAD_FIELD; | |
442 | } | |
443 | } | |
444 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 445 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 446 | if (icmp_code < 0x100) { |
81a76618 | 447 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
448 | } else { |
449 | return OFPERR_OFPBMC_BAD_FIELD; | |
450 | } | |
451 | } | |
452 | break; | |
453 | ||
454 | case IPPROTO_TCP: | |
455 | case IPPROTO_UDP: | |
0d56eaf2 | 456 | case IPPROTO_SCTP: |
410698cf | 457 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 458 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
459 | } |
460 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 461 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
462 | } |
463 | break; | |
464 | ||
410698cf BP |
465 | default: |
466 | /* OF1.1 says explicitly to ignore this. */ | |
467 | break; | |
468 | } | |
469 | } | |
470 | ||
b02475c5 | 471 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 472 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 473 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
474 | } |
475 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 476 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
477 | } |
478 | } | |
479 | ||
81a76618 BP |
480 | match_set_metadata_masked(match, ofmatch->metadata, |
481 | ~ofmatch->metadata_mask); | |
410698cf BP |
482 | |
483 | return 0; | |
484 | } | |
485 | ||
81a76618 | 486 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 487 | void |
81a76618 BP |
488 | ofputil_match_to_ofp11_match(const struct match *match, |
489 | struct ofp11_match *ofmatch) | |
410698cf BP |
490 | { |
491 | uint32_t wc = 0; | |
410698cf | 492 | |
81a76618 BP |
493 | memset(ofmatch, 0, sizeof *ofmatch); |
494 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
495 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 496 | |
4e022ec0 | 497 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
498 | wc |= OFPFW11_IN_PORT; |
499 | } else { | |
4e022ec0 | 500 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
501 | } |
502 | ||
74ff3298 JR |
503 | ofmatch->dl_src = match->flow.dl_src; |
504 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
505 | ofmatch->dl_dst = match->flow.dl_dst; | |
506 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 507 | |
f0fb825a | 508 | if (match->wc.masks.vlans[0].tci == htons(0)) { |
410698cf | 509 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
f0fb825a EG |
510 | } else if (match->wc.masks.vlans[0].tci & htons(VLAN_CFI) |
511 | && !(match->flow.vlans[0].tci & htons(VLAN_CFI))) { | |
81a76618 | 512 | ofmatch->dl_vlan = htons(OFPVID11_NONE); |
410698cf BP |
513 | wc |= OFPFW11_DL_VLAN_PCP; |
514 | } else { | |
f0fb825a | 515 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_VID_MASK))) { |
81a76618 | 516 | ofmatch->dl_vlan = htons(OFPVID11_ANY); |
410698cf | 517 | } else { |
f0fb825a EG |
518 | ofmatch->dl_vlan = |
519 | htons(vlan_tci_to_vid(match->flow.vlans[0].tci)); | |
410698cf BP |
520 | } |
521 | ||
f0fb825a | 522 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
523 | wc |= OFPFW11_DL_VLAN_PCP; |
524 | } else { | |
f0fb825a | 525 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlans[0].tci); |
410698cf BP |
526 | } |
527 | } | |
528 | ||
81a76618 | 529 | if (!match->wc.masks.dl_type) { |
410698cf BP |
530 | wc |= OFPFW11_DL_TYPE; |
531 | } else { | |
81a76618 | 532 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
533 | } |
534 | ||
81a76618 | 535 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
536 | wc |= OFPFW11_NW_TOS; |
537 | } else { | |
81a76618 | 538 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
539 | } |
540 | ||
81a76618 | 541 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
542 | wc |= OFPFW11_NW_PROTO; |
543 | } else { | |
81a76618 | 544 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
545 | } |
546 | ||
81a76618 BP |
547 | ofmatch->nw_src = match->flow.nw_src; |
548 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
549 | ofmatch->nw_dst = match->flow.nw_dst; | |
550 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 551 | |
81a76618 | 552 | if (!match->wc.masks.tp_src) { |
410698cf BP |
553 | wc |= OFPFW11_TP_SRC; |
554 | } else { | |
81a76618 | 555 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
556 | } |
557 | ||
81a76618 | 558 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
559 | wc |= OFPFW11_TP_DST; |
560 | } else { | |
81a76618 | 561 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
562 | } |
563 | ||
8bfd0fda | 564 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
565 | wc |= OFPFW11_MPLS_LABEL; |
566 | } else { | |
8bfd0fda BP |
567 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
568 | match->flow.mpls_lse[0])); | |
097d4939 JR |
569 | } |
570 | ||
8bfd0fda | 571 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
572 | wc |= OFPFW11_MPLS_TC; |
573 | } else { | |
8bfd0fda | 574 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 575 | } |
410698cf | 576 | |
81a76618 BP |
577 | ofmatch->metadata = match->flow.metadata; |
578 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 579 | |
81a76618 | 580 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
581 | } |
582 | ||
75fa58f8 BP |
583 | /* Returns the "typical" length of a match for 'protocol', for use in |
584 | * estimating space to preallocate. */ | |
585 | int | |
586 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
587 | { | |
588 | switch (protocol) { | |
589 | case OFPUTIL_P_OF10_STD: | |
590 | case OFPUTIL_P_OF10_STD_TID: | |
591 | return sizeof(struct ofp10_match); | |
592 | ||
593 | case OFPUTIL_P_OF10_NXM: | |
594 | case OFPUTIL_P_OF10_NXM_TID: | |
595 | return NXM_TYPICAL_LEN; | |
596 | ||
597 | case OFPUTIL_P_OF11_STD: | |
598 | return sizeof(struct ofp11_match); | |
599 | ||
600 | case OFPUTIL_P_OF12_OXM: | |
601 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 602 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 603 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 604 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 BP |
605 | return NXM_TYPICAL_LEN; |
606 | ||
607 | default: | |
428b2edd | 608 | OVS_NOT_REACHED(); |
75fa58f8 BP |
609 | } |
610 | } | |
611 | ||
612 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
613 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
614 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
615 | * in OpenFlow 1.1 or later. | |
616 | * | |
617 | * This function can cause 'b''s data to be reallocated. | |
618 | * | |
619 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
620 | * returns zero. */ | |
621 | int | |
622 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
623 | enum ofputil_protocol protocol) | |
624 | { | |
625 | switch (protocol) { | |
626 | case OFPUTIL_P_OF10_STD: | |
627 | case OFPUTIL_P_OF10_STD_TID: | |
628 | case OFPUTIL_P_OF10_NXM: | |
629 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 630 | OVS_NOT_REACHED(); |
75fa58f8 BP |
631 | |
632 | case OFPUTIL_P_OF11_STD: { | |
633 | struct ofp11_match *om; | |
634 | ||
635 | /* Make sure that no padding is needed. */ | |
636 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
637 | ||
638 | om = ofpbuf_put_uninit(b, sizeof *om); | |
639 | ofputil_match_to_ofp11_match(match, om); | |
640 | return sizeof *om; | |
641 | } | |
642 | ||
643 | case OFPUTIL_P_OF12_OXM: | |
644 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 645 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 646 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 647 | case OFPUTIL_P_OF16_OXM: |
9d84066c BP |
648 | return oxm_put_match(b, match, |
649 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
650 | } |
651 | ||
428b2edd | 652 | OVS_NOT_REACHED(); |
75fa58f8 BP |
653 | } |
654 | ||
36956a7d | 655 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
656 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
657 | * structure. */ | |
36956a7d BP |
658 | ovs_be16 |
659 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
660 | { | |
661 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
662 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
663 | : flow_dl_type); | |
664 | } | |
665 | ||
eec25dc1 | 666 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
667 | * structure, returns the corresponding 'dl_type' value for use in struct |
668 | * flow. */ | |
669 | ovs_be16 | |
670 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
671 | { | |
672 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
673 | ? htons(FLOW_DL_TYPE_NONE) | |
674 | : ofp_dl_type); | |
675 | } | |
2e4f5fcf | 676 | \f |
27527aa0 | 677 | /* Protocols. */ |
7fa91113 | 678 | |
27527aa0 BP |
679 | struct proto_abbrev { |
680 | enum ofputil_protocol protocol; | |
681 | const char *name; | |
682 | }; | |
683 | ||
684 | /* Most users really don't care about some of the differences between | |
aa233d57 | 685 | * protocols. These abbreviations help with that. */ |
27527aa0 | 686 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
687 | { OFPUTIL_P_ANY, "any" }, |
688 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
689 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
690 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
691 | }; |
692 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
693 | ||
694 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
b79d45a1 | 695 | OFPUTIL_P_OF16_OXM, |
42dccab5 | 696 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 697 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 698 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 699 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 700 | OFPUTIL_P_OF11_STD, |
85813857 BP |
701 | OFPUTIL_P_OF10_NXM, |
702 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
703 | }; |
704 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
705 | ||
4f13da56 BP |
706 | /* Returns the set of ofputil_protocols that are supported with the given |
707 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
708 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
709 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 710 | enum ofputil_protocol |
4f13da56 | 711 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
712 | { |
713 | switch (version) { | |
2e3fa633 | 714 | case OFP10_VERSION: |
4f13da56 | 715 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
716 | case OFP11_VERSION: |
717 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 718 | case OFP12_VERSION: |
85813857 | 719 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
720 | case OFP13_VERSION: |
721 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
722 | case OFP14_VERSION: |
723 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
724 | case OFP15_VERSION: |
725 | return OFPUTIL_P_OF15_OXM; | |
b79d45a1 BP |
726 | case OFP16_VERSION: |
727 | return OFPUTIL_P_OF16_OXM; | |
2e3fa633 SH |
728 | default: |
729 | return 0; | |
27527aa0 BP |
730 | } |
731 | } | |
732 | ||
4f13da56 BP |
733 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
734 | * connection that has negotiated the given 'version'. 'version' should | |
735 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
736 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
737 | * outside the valid range. */ | |
738 | enum ofputil_protocol | |
739 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
740 | { | |
741 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
742 | } | |
743 | ||
44d3732d | 744 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 745 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 746 | enum ofp_version |
9e1fd49b BP |
747 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
748 | { | |
749 | switch (protocol) { | |
85813857 BP |
750 | case OFPUTIL_P_OF10_STD: |
751 | case OFPUTIL_P_OF10_STD_TID: | |
752 | case OFPUTIL_P_OF10_NXM: | |
753 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 754 | return OFP10_VERSION; |
75fa58f8 BP |
755 | case OFPUTIL_P_OF11_STD: |
756 | return OFP11_VERSION; | |
85813857 | 757 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 758 | return OFP12_VERSION; |
2e1ae200 JR |
759 | case OFPUTIL_P_OF13_OXM: |
760 | return OFP13_VERSION; | |
c37c0382 AC |
761 | case OFPUTIL_P_OF14_OXM: |
762 | return OFP14_VERSION; | |
42dccab5 BP |
763 | case OFPUTIL_P_OF15_OXM: |
764 | return OFP15_VERSION; | |
b79d45a1 BP |
765 | case OFPUTIL_P_OF16_OXM: |
766 | return OFP16_VERSION; | |
9e1fd49b BP |
767 | } |
768 | ||
428b2edd | 769 | OVS_NOT_REACHED(); |
9e1fd49b BP |
770 | } |
771 | ||
4f13da56 BP |
772 | /* Returns a bitmap of OpenFlow versions that are supported by at |
773 | * least one of the 'protocols'. */ | |
774 | uint32_t | |
775 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
776 | { | |
777 | uint32_t bitmap = 0; | |
778 | ||
779 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
780 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
781 | ||
782 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
783 | } | |
784 | ||
785 | return bitmap; | |
786 | } | |
787 | ||
788 | /* Returns the set of protocols that are supported on top of the | |
789 | * OpenFlow versions included in 'bitmap'. */ | |
790 | enum ofputil_protocol | |
791 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
792 | { | |
793 | enum ofputil_protocol protocols = 0; | |
794 | ||
795 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
796 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
797 | ||
798 | protocols |= ofputil_protocols_from_ofp_version(version); | |
799 | } | |
800 | ||
801 | return protocols; | |
802 | } | |
803 | ||
27527aa0 BP |
804 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
805 | * otherwise. */ | |
7fa91113 | 806 | bool |
27527aa0 | 807 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 808 | { |
27527aa0 BP |
809 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
810 | } | |
811 | ||
812 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
813 | * extension turned on or off if 'enable' is true or false, respectively. | |
814 | * | |
815 | * This extension is only useful for protocols whose "standard" version does | |
816 | * not allow specific tables to be modified. In particular, this is true of | |
817 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
818 | * specifies a table ID and so there is no need for such an extension. When | |
819 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
820 | * extension, this function just returns its 'protocol' argument unchanged | |
821 | * regardless of the value of 'enable'. */ | |
822 | enum ofputil_protocol | |
823 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
824 | { | |
825 | switch (protocol) { | |
85813857 BP |
826 | case OFPUTIL_P_OF10_STD: |
827 | case OFPUTIL_P_OF10_STD_TID: | |
828 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 829 | |
85813857 BP |
830 | case OFPUTIL_P_OF10_NXM: |
831 | case OFPUTIL_P_OF10_NXM_TID: | |
832 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 833 | |
75fa58f8 BP |
834 | case OFPUTIL_P_OF11_STD: |
835 | return OFPUTIL_P_OF11_STD; | |
836 | ||
85813857 BP |
837 | case OFPUTIL_P_OF12_OXM: |
838 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 839 | |
2e1ae200 JR |
840 | case OFPUTIL_P_OF13_OXM: |
841 | return OFPUTIL_P_OF13_OXM; | |
842 | ||
c37c0382 AC |
843 | case OFPUTIL_P_OF14_OXM: |
844 | return OFPUTIL_P_OF14_OXM; | |
845 | ||
42dccab5 BP |
846 | case OFPUTIL_P_OF15_OXM: |
847 | return OFPUTIL_P_OF15_OXM; | |
848 | ||
b79d45a1 BP |
849 | case OFPUTIL_P_OF16_OXM: |
850 | return OFPUTIL_P_OF16_OXM; | |
851 | ||
27527aa0 | 852 | default: |
428b2edd | 853 | OVS_NOT_REACHED(); |
7fa91113 | 854 | } |
27527aa0 | 855 | } |
7fa91113 | 856 | |
27527aa0 BP |
857 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
858 | * some extension to a standard protocol version, the return value is the | |
859 | * standard version of that protocol without any extension. If 'protocol' is a | |
860 | * standard protocol version, returns 'protocol' unchanged. */ | |
861 | enum ofputil_protocol | |
862 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
863 | { | |
864 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
865 | } |
866 | ||
27527aa0 BP |
867 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
868 | enum ofputil_protocol | |
869 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
870 | enum ofputil_protocol new_base) | |
7fa91113 | 871 | { |
27527aa0 BP |
872 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
873 | ||
874 | switch (new_base) { | |
85813857 BP |
875 | case OFPUTIL_P_OF10_STD: |
876 | case OFPUTIL_P_OF10_STD_TID: | |
877 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 878 | |
85813857 BP |
879 | case OFPUTIL_P_OF10_NXM: |
880 | case OFPUTIL_P_OF10_NXM_TID: | |
881 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 882 | |
75fa58f8 BP |
883 | case OFPUTIL_P_OF11_STD: |
884 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
885 | ||
85813857 BP |
886 | case OFPUTIL_P_OF12_OXM: |
887 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 888 | |
2e1ae200 JR |
889 | case OFPUTIL_P_OF13_OXM: |
890 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
891 | ||
c37c0382 AC |
892 | case OFPUTIL_P_OF14_OXM: |
893 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
894 | ||
42dccab5 BP |
895 | case OFPUTIL_P_OF15_OXM: |
896 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
897 | ||
b79d45a1 BP |
898 | case OFPUTIL_P_OF16_OXM: |
899 | return ofputil_protocol_set_tid(OFPUTIL_P_OF16_OXM, tid); | |
900 | ||
7fa91113 | 901 | default: |
428b2edd | 902 | OVS_NOT_REACHED(); |
7fa91113 BP |
903 | } |
904 | } | |
905 | ||
27527aa0 BP |
906 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
907 | * 'protocol' is either a single protocol or it is a combination of protocols | |
908 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
909 | const char * | |
910 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 911 | { |
27527aa0 BP |
912 | const struct proto_abbrev *p; |
913 | ||
914 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
915 | * warning if we forget any. */ | |
916 | switch (protocol) { | |
85813857 | 917 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
918 | return "NXM-table_id"; |
919 | ||
85813857 | 920 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
921 | return "NXM+table_id"; |
922 | ||
85813857 | 923 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
924 | return "OpenFlow10-table_id"; |
925 | ||
85813857 | 926 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 927 | return "OpenFlow10+table_id"; |
44d3732d | 928 | |
75fa58f8 BP |
929 | case OFPUTIL_P_OF11_STD: |
930 | return "OpenFlow11"; | |
931 | ||
85813857 | 932 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 933 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
934 | |
935 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 936 | return "OXM-OpenFlow13"; |
c37c0382 AC |
937 | |
938 | case OFPUTIL_P_OF14_OXM: | |
939 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
940 | |
941 | case OFPUTIL_P_OF15_OXM: | |
942 | return "OXM-OpenFlow15"; | |
b79d45a1 BP |
943 | |
944 | case OFPUTIL_P_OF16_OXM: | |
945 | return "OXM-OpenFlow16"; | |
27527aa0 BP |
946 | } |
947 | ||
948 | /* Check abbreviations. */ | |
949 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
950 | if (protocol == p->protocol) { | |
951 | return p->name; | |
952 | } | |
953 | } | |
954 | ||
955 | return NULL; | |
956 | } | |
957 | ||
958 | /* Returns a string that represents 'protocols'. The return value might be a | |
959 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
960 | * value is "none" if 'protocols' is 0. | |
961 | * | |
962 | * The caller must free the returned string (with free()). */ | |
963 | char * | |
964 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
965 | { | |
966 | struct ds s; | |
967 | ||
cb22974d | 968 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
969 | if (protocols == 0) { |
970 | return xstrdup("none"); | |
971 | } | |
972 | ||
973 | ds_init(&s); | |
974 | while (protocols) { | |
975 | const struct proto_abbrev *p; | |
976 | int i; | |
977 | ||
978 | if (s.length) { | |
979 | ds_put_char(&s, ','); | |
980 | } | |
981 | ||
982 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
983 | if ((protocols & p->protocol) == p->protocol) { | |
984 | ds_put_cstr(&s, p->name); | |
985 | protocols &= ~p->protocol; | |
986 | goto match; | |
987 | } | |
988 | } | |
989 | ||
990 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
991 | enum ofputil_protocol bit = 1u << i; | |
992 | ||
993 | if (protocols & bit) { | |
994 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
995 | protocols &= ~bit; | |
996 | goto match; | |
997 | } | |
998 | } | |
428b2edd | 999 | OVS_NOT_REACHED(); |
27527aa0 BP |
1000 | |
1001 | match: ; | |
1002 | } | |
1003 | return ds_steal_cstr(&s); | |
1004 | } | |
1005 | ||
1006 | static enum ofputil_protocol | |
1007 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1008 | { | |
1009 | const struct proto_abbrev *p; | |
1010 | int i; | |
1011 | ||
1012 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1013 | enum ofputil_protocol bit = 1u << i; | |
1014 | const char *name = ofputil_protocol_to_string(bit); | |
1015 | ||
1016 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1017 | return bit; | |
1018 | } | |
1019 | } | |
1020 | ||
1021 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1022 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1023 | return p->protocol; | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1031 | * single protocol name or abbreviation or a comma-separated list of them. | |
1032 | * | |
1033 | * Aborts the program with an error message if 's' is invalid. */ | |
1034 | enum ofputil_protocol | |
1035 | ofputil_protocols_from_string(const char *s) | |
1036 | { | |
1037 | const char *orig_s = s; | |
1038 | enum ofputil_protocol protocols; | |
1039 | ||
1040 | protocols = 0; | |
1041 | while (*s) { | |
1042 | enum ofputil_protocol p; | |
1043 | size_t n; | |
1044 | ||
1045 | n = strcspn(s, ","); | |
1046 | if (n == 0) { | |
1047 | s++; | |
1048 | continue; | |
1049 | } | |
1050 | ||
1051 | p = ofputil_protocol_from_string__(s, n); | |
1052 | if (!p) { | |
1053 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1054 | } | |
1055 | protocols |= p; | |
1056 | ||
1057 | s += n; | |
1058 | } | |
1059 | ||
1060 | if (!protocols) { | |
1061 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1062 | } | |
1063 | return protocols; | |
88ca35ee BP |
1064 | } |
1065 | ||
9d84066c | 1066 | enum ofp_version |
03e1125c SH |
1067 | ofputil_version_from_string(const char *s) |
1068 | { | |
1069 | if (!strcasecmp(s, "OpenFlow10")) { | |
1070 | return OFP10_VERSION; | |
1071 | } | |
1072 | if (!strcasecmp(s, "OpenFlow11")) { | |
1073 | return OFP11_VERSION; | |
1074 | } | |
1075 | if (!strcasecmp(s, "OpenFlow12")) { | |
1076 | return OFP12_VERSION; | |
1077 | } | |
2e1ae200 JR |
1078 | if (!strcasecmp(s, "OpenFlow13")) { |
1079 | return OFP13_VERSION; | |
1080 | } | |
c37c0382 AC |
1081 | if (!strcasecmp(s, "OpenFlow14")) { |
1082 | return OFP14_VERSION; | |
1083 | } | |
42dccab5 BP |
1084 | if (!strcasecmp(s, "OpenFlow15")) { |
1085 | return OFP15_VERSION; | |
1086 | } | |
b79d45a1 BP |
1087 | if (!strcasecmp(s, "OpenFlow16")) { |
1088 | return OFP16_VERSION; | |
1089 | } | |
7beaa082 | 1090 | return 0; |
03e1125c SH |
1091 | } |
1092 | ||
1093 | static bool | |
e091ef84 | 1094 | is_delimiter(unsigned char c) |
03e1125c SH |
1095 | { |
1096 | return isspace(c) || c == ','; | |
1097 | } | |
1098 | ||
1099 | uint32_t | |
1100 | ofputil_versions_from_string(const char *s) | |
1101 | { | |
1102 | size_t i = 0; | |
1103 | uint32_t bitmap = 0; | |
1104 | ||
1105 | while (s[i]) { | |
1106 | size_t j; | |
7beaa082 | 1107 | int version; |
03e1125c SH |
1108 | char *key; |
1109 | ||
1110 | if (is_delimiter(s[i])) { | |
1111 | i++; | |
1112 | continue; | |
1113 | } | |
1114 | j = 0; | |
1115 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1116 | j++; | |
1117 | } | |
1118 | key = xmemdup0(s + i, j); | |
1119 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1120 | if (!version) { |
1121 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1122 | } | |
03e1125c SH |
1123 | free(key); |
1124 | bitmap |= 1u << version; | |
1125 | i += j; | |
1126 | } | |
1127 | ||
1128 | return bitmap; | |
1129 | } | |
1130 | ||
7beaa082 SH |
1131 | uint32_t |
1132 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1133 | { | |
1134 | uint32_t bitmap = 0; | |
1135 | ||
1136 | while (count--) { | |
1137 | int version = ofputil_version_from_string(s[count]); | |
1138 | if (!version) { | |
1139 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1140 | } else { | |
1141 | bitmap |= 1u << version; | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | return bitmap; | |
1146 | } | |
1147 | ||
03e1125c SH |
1148 | const char * |
1149 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1150 | { | |
1151 | switch (ofp_version) { | |
1152 | case OFP10_VERSION: | |
1153 | return "OpenFlow10"; | |
1154 | case OFP11_VERSION: | |
1155 | return "OpenFlow11"; | |
1156 | case OFP12_VERSION: | |
1157 | return "OpenFlow12"; | |
2e1ae200 JR |
1158 | case OFP13_VERSION: |
1159 | return "OpenFlow13"; | |
c37c0382 AC |
1160 | case OFP14_VERSION: |
1161 | return "OpenFlow14"; | |
42dccab5 BP |
1162 | case OFP15_VERSION: |
1163 | return "OpenFlow15"; | |
b79d45a1 BP |
1164 | case OFP16_VERSION: |
1165 | return "OpenFlow16"; | |
03e1125c | 1166 | default: |
428b2edd | 1167 | OVS_NOT_REACHED(); |
03e1125c SH |
1168 | } |
1169 | } | |
1170 | ||
54834960 EJ |
1171 | bool |
1172 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1173 | { | |
1174 | switch (packet_in_format) { | |
6409e008 BP |
1175 | case NXPIF_STANDARD: |
1176 | case NXPIF_NXT_PACKET_IN: | |
1177 | case NXPIF_NXT_PACKET_IN2: | |
54834960 EJ |
1178 | return true; |
1179 | } | |
1180 | ||
1181 | return false; | |
1182 | } | |
1183 | ||
1184 | const char * | |
1185 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1186 | { | |
1187 | switch (packet_in_format) { | |
6409e008 BP |
1188 | case NXPIF_STANDARD: |
1189 | return "standard"; | |
1190 | case NXPIF_NXT_PACKET_IN: | |
1191 | return "nxt_packet_in"; | |
1192 | case NXPIF_NXT_PACKET_IN2: | |
1193 | return "nxt_packet_in2"; | |
54834960 | 1194 | default: |
428b2edd | 1195 | OVS_NOT_REACHED(); |
54834960 EJ |
1196 | } |
1197 | } | |
1198 | ||
1199 | int | |
1200 | ofputil_packet_in_format_from_string(const char *s) | |
1201 | { | |
6409e008 BP |
1202 | return (!strcmp(s, "standard") || !strcmp(s, "openflow10") |
1203 | ? NXPIF_STANDARD | |
1204 | : !strcmp(s, "nxt_packet_in") || !strcmp(s, "nxm") | |
1205 | ? NXPIF_NXT_PACKET_IN | |
1206 | : !strcmp(s, "nxt_packet_in2") | |
1207 | ? NXPIF_NXT_PACKET_IN2 | |
54834960 EJ |
1208 | : -1); |
1209 | } | |
1210 | ||
03e1125c SH |
1211 | void |
1212 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1213 | { | |
8989046d | 1214 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1215 | } |
1216 | ||
1217 | void | |
1218 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1219 | { | |
1220 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1221 | } | |
1222 | ||
1223 | static void | |
1224 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1225 | void (*format_version)(struct ds *msg, | |
1226 | enum ofp_version)) | |
1227 | { | |
1228 | while (bitmap) { | |
1229 | format_version(msg, raw_ctz(bitmap)); | |
1230 | bitmap = zero_rightmost_1bit(bitmap); | |
1231 | if (bitmap) { | |
1232 | ds_put_cstr(msg, ", "); | |
1233 | } | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | void | |
1238 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1239 | { | |
1240 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1241 | } | |
1242 | ||
1243 | void | |
1244 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1245 | { | |
1246 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1247 | } | |
1248 | ||
de6c85b0 SH |
1249 | static bool |
1250 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1251 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1252 | { |
1253 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1254 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1255 | uint32_t allowed_versions; |
de6c85b0 SH |
1256 | |
1257 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1258 | return false; | |
1259 | } | |
1260 | ||
1261 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1262 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1263 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1264 | * wire-protocol versions greater than 31. |
1265 | */ | |
0935de41 | 1266 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1267 | |
0935de41 | 1268 | if (allowed_versions & 1) { |
de6c85b0 SH |
1269 | /* There's no OpenFlow version 0. */ |
1270 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1271 | "version 0x00"); | |
0935de41 | 1272 | allowed_versions &= ~1u; |
de6c85b0 SH |
1273 | } |
1274 | ||
0935de41 | 1275 | if (!allowed_versions) { |
de6c85b0 SH |
1276 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1277 | "version (between 0x01 and 0x1f)"); | |
1278 | return false; | |
1279 | } | |
1280 | ||
0935de41 | 1281 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1282 | return true; |
1283 | } | |
1284 | ||
1285 | static uint32_t | |
1286 | version_bitmap_from_version(uint8_t ofp_version) | |
1287 | { | |
1288 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1289 | } | |
1290 | ||
1291 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1292 | * the set of OpenFlow versions for which 'oh' announces support. | |
1293 | * | |
1294 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1295 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1296 | * returns false if 'oh' contains some data that could not be fully understood, | |
1297 | * true if 'oh' was completely parsed. */ | |
1298 | bool | |
1299 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1300 | { | |
0a2869d5 | 1301 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
de6c85b0 SH |
1302 | ofpbuf_pull(&msg, sizeof *oh); |
1303 | ||
1304 | *allowed_versions = version_bitmap_from_version(oh->version); | |
0a2869d5 BP |
1305 | |
1306 | bool ok = true; | |
6fd6ed71 | 1307 | while (msg.size) { |
de6c85b0 SH |
1308 | const struct ofp_hello_elem_header *oheh; |
1309 | unsigned int len; | |
1310 | ||
6fd6ed71 | 1311 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1312 | return false; |
1313 | } | |
1314 | ||
6fd6ed71 | 1315 | oheh = msg.data; |
de6c85b0 SH |
1316 | len = ntohs(oheh->length); |
1317 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1318 | return false; | |
1319 | } | |
1320 | ||
1321 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1322 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1323 | ok = false; | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | return ok; | |
1328 | } | |
1329 | ||
1330 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1331 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1332 | static bool |
de6c85b0 SH |
1333 | should_send_version_bitmap(uint32_t allowed_versions) |
1334 | { | |
1335 | return !is_pow2((allowed_versions >> 1) + 1); | |
1336 | } | |
1337 | ||
1338 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1339 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1340 | struct ofpbuf * | |
1341 | ofputil_encode_hello(uint32_t allowed_versions) | |
1342 | { | |
1343 | enum ofp_version ofp_version; | |
1344 | struct ofpbuf *msg; | |
1345 | ||
1346 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1347 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1348 | ||
1349 | if (should_send_version_bitmap(allowed_versions)) { | |
1350 | struct ofp_hello_elem_header *oheh; | |
1351 | uint16_t map_len; | |
1352 | ||
74c4b9c1 | 1353 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1354 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1355 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1356 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1357 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1358 | |
1359 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1360 | } |
1361 | ||
1362 | return msg; | |
1363 | } | |
1364 | ||
27527aa0 BP |
1365 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1366 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1367 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1368 | * connection if the switch processes the returned message correctly. (If | |
1369 | * '*next != want' then the caller will have to iterate.) | |
1370 | * | |
e43928f2 BP |
1371 | * If 'current == want', or if it is not possible to transition from 'current' |
1372 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1373 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1374 | struct ofpbuf * |
1375 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1376 | enum ofputil_protocol want, | |
1377 | enum ofputil_protocol *next) | |
1378 | { | |
e43928f2 | 1379 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1380 | enum ofputil_protocol cur_base, want_base; |
1381 | bool cur_tid, want_tid; | |
1382 | ||
e43928f2 BP |
1383 | cur_version = ofputil_protocol_to_ofp_version(current); |
1384 | want_version = ofputil_protocol_to_ofp_version(want); | |
1385 | if (cur_version != want_version) { | |
1386 | *next = current; | |
1387 | return NULL; | |
1388 | } | |
1389 | ||
27527aa0 BP |
1390 | cur_base = ofputil_protocol_to_base(current); |
1391 | want_base = ofputil_protocol_to_base(want); | |
1392 | if (cur_base != want_base) { | |
1393 | *next = ofputil_protocol_set_base(current, want_base); | |
1394 | ||
1395 | switch (want_base) { | |
85813857 | 1396 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1397 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1398 | ||
85813857 | 1399 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1400 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1401 | ||
75fa58f8 | 1402 | case OFPUTIL_P_OF11_STD: |
85813857 | 1403 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1404 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1405 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1406 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 1407 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 | 1408 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1409 | * verified above that we're not trying to change versions. */ |
428b2edd | 1410 | OVS_NOT_REACHED(); |
44d3732d | 1411 | |
85813857 BP |
1412 | case OFPUTIL_P_OF10_STD_TID: |
1413 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1414 | OVS_NOT_REACHED(); |
27527aa0 BP |
1415 | } |
1416 | } | |
1417 | ||
1418 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1419 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1420 | if (cur_tid != want_tid) { | |
1421 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1422 | return ofputil_make_flow_mod_table_id(want_tid); | |
1423 | } | |
1424 | ||
cb22974d | 1425 | ovs_assert(current == want); |
27527aa0 BP |
1426 | |
1427 | *next = current; | |
1428 | return NULL; | |
88ca35ee BP |
1429 | } |
1430 | ||
27527aa0 BP |
1431 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1432 | * format to 'nxff'. */ | |
88ca35ee | 1433 | struct ofpbuf * |
27527aa0 | 1434 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1435 | { |
73dbf4ab | 1436 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1437 | struct ofpbuf *msg; |
1438 | ||
cb22974d | 1439 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1440 | |
982697a4 BP |
1441 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1442 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1443 | sff->format = htonl(nxff); |
88ca35ee BP |
1444 | |
1445 | return msg; | |
1446 | } | |
1447 | ||
27527aa0 BP |
1448 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1449 | * otherwise. */ | |
1450 | enum ofputil_protocol | |
1451 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1452 | { | |
1453 | switch (flow_format) { | |
1454 | case NXFF_OPENFLOW10: | |
85813857 | 1455 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1456 | |
1457 | case NXFF_NXM: | |
85813857 | 1458 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1459 | |
1460 | default: | |
1461 | return 0; | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1466 | bool | |
1467 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1468 | { | |
1469 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1470 | } | |
1471 | ||
1472 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1473 | * value. */ | |
1474 | const char * | |
1475 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1476 | { | |
1477 | switch (flow_format) { | |
1478 | case NXFF_OPENFLOW10: | |
1479 | return "openflow10"; | |
1480 | case NXFF_NXM: | |
1481 | return "nxm"; | |
1482 | default: | |
428b2edd | 1483 | OVS_NOT_REACHED(); |
27527aa0 BP |
1484 | } |
1485 | } | |
1486 | ||
54834960 | 1487 | struct ofpbuf * |
3f4a1939 SH |
1488 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1489 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1490 | { |
73dbf4ab | 1491 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1492 | struct ofpbuf *msg; |
1493 | ||
3f4a1939 | 1494 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1495 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1496 | spif->format = htonl(packet_in_format); |
1497 | ||
1498 | return msg; | |
1499 | } | |
1500 | ||
6c1491fb BP |
1501 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1502 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1503 | struct ofpbuf * | |
1504 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1505 | { | |
73dbf4ab | 1506 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1507 | struct ofpbuf *msg; |
1508 | ||
982697a4 BP |
1509 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1510 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1511 | nfmti->set = flow_mod_table_id; |
1512 | return msg; | |
1513 | } | |
1514 | ||
0fb88c18 BP |
1515 | struct ofputil_flow_mod_flag { |
1516 | uint16_t raw_flag; | |
1517 | enum ofp_version min_version, max_version; | |
1518 | enum ofputil_flow_mod_flags flag; | |
1519 | }; | |
1520 | ||
1521 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1522 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1523 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1524 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1525 | OFPUTIL_FF_EMERG }, | |
1526 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1527 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1528 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1529 | { 0, 0, 0, 0 }, | |
1530 | }; | |
1531 | ||
1532 | static enum ofperr | |
1533 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1534 | enum ofp_flow_mod_command command, | |
1535 | enum ofp_version version, | |
1536 | enum ofputil_flow_mod_flags *flagsp) | |
1537 | { | |
1538 | uint16_t raw_flags = ntohs(raw_flags_); | |
1539 | const struct ofputil_flow_mod_flag *f; | |
1540 | ||
1541 | *flagsp = 0; | |
1542 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1543 | if (raw_flags & f->raw_flag | |
1544 | && version >= f->min_version | |
1545 | && (!f->max_version || version <= f->max_version)) { | |
1546 | raw_flags &= ~f->raw_flag; | |
1547 | *flagsp |= f->flag; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1552 | * never do. | |
1553 | * | |
1554 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1555 | * resets counters. */ | |
1556 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1557 | && command == OFPFC_ADD) { | |
1558 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1559 | } | |
1560 | ||
1561 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1562 | } | |
1563 | ||
1564 | static ovs_be16 | |
1565 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1566 | enum ofp_version version) | |
1567 | { | |
1568 | const struct ofputil_flow_mod_flag *f; | |
1569 | uint16_t raw_flags; | |
1570 | ||
1571 | raw_flags = 0; | |
1572 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1573 | if (f->flag & flags | |
1574 | && version >= f->min_version | |
1575 | && (!f->max_version || version <= f->max_version)) { | |
1576 | raw_flags |= f->raw_flag; | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | return htons(raw_flags); | |
1581 | } | |
1582 | ||
7fa91113 BP |
1583 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1584 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1585 | * code. | |
1586 | * | |
f25d0cf3 BP |
1587 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1588 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1589 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1590 | * | |
1591 | * Does not validate the flow_mod actions. The caller should do that, with | |
1592 | * ofpacts_check(). */ | |
90bf1e07 | 1593 | enum ofperr |
a9a2da38 | 1594 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1595 | const struct ofp_header *oh, |
f25d0cf3 | 1596 | enum ofputil_protocol protocol, |
8d8ab6c2 | 1597 | const struct tun_table *tun_table, |
04f48a68 | 1598 | const struct vl_mff_map *vl_mff_map, |
7e9f8266 BP |
1599 | struct ofpbuf *ofpacts, |
1600 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1601 | { |
0fb88c18 BP |
1602 | ovs_be16 raw_flags; |
1603 | enum ofperr error; | |
0a2869d5 BP |
1604 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
1605 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
aa319503 | 1606 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1607 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1608 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1609 | |
bbc32a88 | 1610 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1611 | |
3cddeff0 YHW |
1612 | error = ofputil_pull_ofp11_match(&b, tun_table, vl_mff_map, &fm->match, |
1613 | NULL); | |
aa319503 BP |
1614 | if (error) { |
1615 | return error; | |
1c0b7503 BP |
1616 | } |
1617 | ||
2e4f5fcf | 1618 | /* Translate the message. */ |
81a76618 | 1619 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1620 | if (ofm->command == OFPFC_ADD |
1621 | || (oh->version == OFP11_VERSION | |
1622 | && (ofm->command == OFPFC_MODIFY || | |
1623 | ofm->command == OFPFC_MODIFY_STRICT) | |
1624 | && ofm->cookie_mask == htonll(0))) { | |
1625 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1626 | * not match on the cookie is treated as an "add" if there is no | |
1627 | * match. */ | |
aa319503 BP |
1628 | fm->cookie = htonll(0); |
1629 | fm->cookie_mask = htonll(0); | |
1630 | fm->new_cookie = ofm->cookie; | |
1631 | } else { | |
aa319503 BP |
1632 | fm->cookie = ofm->cookie; |
1633 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1634 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1635 | } |
23342857 | 1636 | fm->modify_cookie = false; |
aa319503 | 1637 | fm->command = ofm->command; |
0e197060 BP |
1638 | |
1639 | /* Get table ID. | |
1640 | * | |
083761ad SH |
1641 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1642 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1643 | fm->table_id = ofm->table_id; |
083761ad | 1644 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1645 | && (oh->version == OFP11_VERSION |
1646 | || (ofm->command != OFPFC_DELETE && | |
1647 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1648 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1649 | } | |
1650 | ||
2e4f5fcf BP |
1651 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1652 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1653 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1654 | fm->importance = ntohs(ofm->importance); | |
1655 | } else { | |
1656 | fm->importance = 0; | |
1657 | } | |
2e4f5fcf | 1658 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1659 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1660 | if (error) { |
1661 | return error; | |
1662 | } | |
7395c052 | 1663 | |
1fe4c0a0 BP |
1664 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1665 | ofm->command == OFPFC_DELETE_STRICT | |
1666 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1667 | : OFPG_ANY); |
0fb88c18 | 1668 | raw_flags = ofm->flags; |
aa319503 | 1669 | } else { |
0fb88c18 BP |
1670 | uint16_t command; |
1671 | ||
aa319503 BP |
1672 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1673 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1674 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1675 | |
1676 | /* Get the ofp10_flow_mod. */ | |
1677 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1678 | ||
aa319503 | 1679 | /* Translate the rule. */ |
81a76618 BP |
1680 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1681 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1682 | |
81a76618 BP |
1683 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1684 | * highest possible priority. */ | |
1685 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1686 | ? ntohs(ofm->priority) | |
1687 | : UINT16_MAX); | |
1688 | ||
aa319503 BP |
1689 | /* Translate the message. */ |
1690 | command = ntohs(ofm->command); | |
1691 | fm->cookie = htonll(0); | |
1692 | fm->cookie_mask = htonll(0); | |
1693 | fm->new_cookie = ofm->cookie; | |
1694 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1695 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1696 | fm->importance = 0; |
aa319503 | 1697 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1698 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1699 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1700 | raw_flags = ofm->flags; |
aa319503 BP |
1701 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1702 | /* Nicira extended flow_mod. */ | |
1703 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1704 | |
1705 | /* Dissect the message. */ | |
1706 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 | 1707 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
8d8ab6c2 | 1708 | &fm->match, &fm->cookie, &fm->cookie_mask, |
d7892c81 | 1709 | false, tun_table, vl_mff_map); |
aa319503 BP |
1710 | if (error) { |
1711 | return error; | |
1712 | } | |
aa319503 BP |
1713 | |
1714 | /* Translate the message. */ | |
1715 | command = ntohs(nfm->command); | |
1716 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1717 | /* Flow additions may only set a new cookie, not match an | |
1718 | * existing cookie. */ | |
1719 | return OFPERR_NXBRC_NXM_INVALID; | |
1720 | } | |
81a76618 | 1721 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1722 | fm->new_cookie = nfm->cookie; |
1723 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1724 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1725 | fm->importance = 0; |
aa319503 | 1726 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1727 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1728 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1729 | raw_flags = nfm->flags; |
aa319503 | 1730 | } else { |
428b2edd | 1731 | OVS_NOT_REACHED(); |
aa319503 BP |
1732 | } |
1733 | ||
b8266395 | 1734 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1735 | if (protocol & OFPUTIL_P_TID) { |
1736 | fm->command = command & 0xff; | |
1737 | fm->table_id = command >> 8; | |
1738 | } else { | |
1f42be1c JR |
1739 | if (command > 0xff) { |
1740 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1741 | "but flow_mod_table_id extension is not enabled"); | |
1742 | } | |
aa319503 BP |
1743 | fm->command = command; |
1744 | fm->table_id = 0xff; | |
e729e793 | 1745 | } |
2e4f5fcf BP |
1746 | } |
1747 | ||
e75aad80 JR |
1748 | /* Check for mismatched conntrack original direction tuple address fields |
1749 | * w.r.t. the IP version of the match. */ | |
1750 | if (((fm->match.wc.masks.ct_nw_src || fm->match.wc.masks.ct_nw_dst) | |
1751 | && fm->match.flow.dl_type != htons(ETH_TYPE_IP)) | |
1752 | || ((ipv6_addr_is_set(&fm->match.wc.masks.ct_ipv6_src) | |
1753 | || ipv6_addr_is_set(&fm->match.wc.masks.ct_ipv6_dst)) | |
1754 | && fm->match.flow.dl_type != htons(ETH_TYPE_IPV6))) { | |
1755 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; | |
1756 | } | |
1757 | ||
1f42be1c JR |
1758 | if (fm->command > OFPFC_DELETE_STRICT) { |
1759 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1760 | } | |
1761 | ||
5c7c16d8 | 1762 | fm->ofpacts_tlv_bitmap = 0; |
04f48a68 | 1763 | error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version, |
5c7c16d8 YHW |
1764 | vl_mff_map, |
1765 | &fm->ofpacts_tlv_bitmap, | |
1766 | ofpacts); | |
8f2cded4 BP |
1767 | if (error) { |
1768 | return error; | |
1769 | } | |
6fd6ed71 PS |
1770 | fm->ofpacts = ofpacts->data; |
1771 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1772 | |
0fb88c18 BP |
1773 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1774 | oh->version, &fm->flags); | |
1775 | if (error) { | |
1776 | return error; | |
1777 | } | |
1778 | ||
1779 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1780 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1781 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1782 | * | |
1783 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1784 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1785 | * code, so just state that the flow table is full. */ | |
1786 | return (fm->hard_timeout || fm->idle_timeout | |
1787 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1788 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1789 | } | |
1790 | ||
ba2fe8e9 | 1791 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
67210a55 | 1792 | &fm->match, max_port, |
ba2fe8e9 | 1793 | fm->table_id, max_table, protocol); |
2e4f5fcf BP |
1794 | } |
1795 | ||
638a19b0 JR |
1796 | static enum ofperr |
1797 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1798 | struct ofpbuf *bands) | |
1799 | { | |
1800 | const struct ofp13_meter_band_header *ombh; | |
1801 | struct ofputil_meter_band *mb; | |
1802 | uint16_t n = 0; | |
1803 | ||
1804 | ombh = ofpbuf_try_pull(msg, len); | |
1805 | if (!ombh) { | |
1806 | return OFPERR_OFPBRC_BAD_LEN; | |
1807 | } | |
1808 | ||
1809 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1810 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1811 | /* All supported band types have the same length. */ |
638a19b0 JR |
1812 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1813 | return OFPERR_OFPBRC_BAD_LEN; | |
1814 | } | |
1815 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1816 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1817 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1818 | return OFPERR_OFPMMFC_BAD_BAND; | |
1819 | } | |
638a19b0 JR |
1820 | mb->rate = ntohl(ombh->rate); |
1821 | mb->burst_size = ntohl(ombh->burst_size); | |
1822 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1823 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1824 | n++; | |
1825 | len -= ombh_len; | |
db5a1019 AW |
1826 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1827 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1828 | } |
1829 | if (len) { | |
1830 | return OFPERR_OFPBRC_BAD_LEN; | |
1831 | } | |
1832 | *n_bands = n; | |
1833 | return 0; | |
1834 | } | |
1835 | ||
1836 | enum ofperr | |
1837 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1838 | struct ofputil_meter_mod *mm, | |
1839 | struct ofpbuf *bands) | |
1840 | { | |
0a2869d5 | 1841 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
638a19b0 | 1842 | ofpraw_pull_assert(&b); |
0a2869d5 | 1843 | const struct ofp13_meter_mod *omm = ofpbuf_pull(&b, sizeof *omm); |
638a19b0 JR |
1844 | |
1845 | /* Translate the message. */ | |
1846 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1847 | if (mm->command != OFPMC13_ADD && |
1848 | mm->command != OFPMC13_MODIFY && | |
1849 | mm->command != OFPMC13_DELETE) { | |
1850 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1851 | } | |
638a19b0 JR |
1852 | mm->meter.meter_id = ntohl(omm->meter_id); |
1853 | ||
1854 | if (mm->command == OFPMC13_DELETE) { | |
1855 | mm->meter.flags = 0; | |
1856 | mm->meter.n_bands = 0; | |
1857 | mm->meter.bands = NULL; | |
1858 | } else { | |
1859 | enum ofperr error; | |
1860 | ||
1861 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1862 | if (mm->meter.flags & OFPMF13_KBPS && |
1863 | mm->meter.flags & OFPMF13_PKTPS) { | |
1864 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1865 | } | |
6fd6ed71 | 1866 | mm->meter.bands = bands->data; |
638a19b0 | 1867 | |
6fd6ed71 | 1868 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1869 | if (error) { |
1870 | return error; | |
1871 | } | |
1872 | } | |
1873 | return 0; | |
1874 | } | |
1875 | ||
1876 | void | |
1877 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1878 | { | |
1879 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1880 | *meter_id = ntohl(omr->meter_id); | |
1881 | } | |
1882 | ||
1883 | struct ofpbuf * | |
1884 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1885 | enum ofputil_meter_request_type type, | |
1886 | uint32_t meter_id) | |
1887 | { | |
1888 | struct ofpbuf *msg; | |
1889 | ||
1890 | enum ofpraw raw; | |
1891 | ||
1892 | switch (type) { | |
1893 | case OFPUTIL_METER_CONFIG: | |
1894 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1895 | break; | |
1896 | case OFPUTIL_METER_STATS: | |
1897 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1898 | break; | |
1899 | default: | |
1900 | case OFPUTIL_METER_FEATURES: | |
1901 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1902 | break; | |
1903 | } | |
1904 | ||
1905 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1906 | ||
1907 | if (type != OFPUTIL_METER_FEATURES) { | |
1908 | struct ofp13_meter_multipart_request *omr; | |
1909 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1910 | omr->meter_id = htonl(meter_id); | |
1911 | } | |
1912 | return msg; | |
1913 | } | |
1914 | ||
1915 | static void | |
1916 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1917 | struct ofpbuf *msg) | |
1918 | { | |
1919 | uint16_t n = 0; | |
1920 | ||
1921 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1922 | /* Currently all band types have same size. */ |
638a19b0 JR |
1923 | struct ofp13_meter_band_dscp_remark *ombh; |
1924 | size_t ombh_len = sizeof *ombh; | |
1925 | ||
1926 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1927 | ||
1928 | ombh->type = htons(mb->type); | |
1929 | ombh->len = htons(ombh_len); | |
1930 | ombh->rate = htonl(mb->rate); | |
1931 | ombh->burst_size = htonl(mb->burst_size); | |
1932 | ombh->prec_level = mb->prec_level; | |
1933 | ||
1934 | mb++; | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1939 | void | |
ca6ba700 | 1940 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1941 | const struct ofputil_meter_config *mc) |
1942 | { | |
417e7e66 | 1943 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 1944 | size_t start_ofs = msg->size; |
6a5490c6 | 1945 | struct ofp13_meter_config *reply; |
638a19b0 | 1946 | |
6a5490c6 | 1947 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1948 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1949 | ||
32756a57 | 1950 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1951 | reply->flags = htons(mc->flags); |
1952 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1953 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1954 | |
1955 | ofpmp_postappend(replies, start_ofs); | |
1956 | } | |
1957 | ||
1958 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1959 | void | |
ca6ba700 | 1960 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1961 | const struct ofputil_meter_stats *ms) |
1962 | { | |
1963 | struct ofp13_meter_stats *reply; | |
1964 | uint16_t n = 0; | |
1965 | uint16_t len; | |
1966 | ||
1967 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1968 | reply = ofpmp_append(replies, len); | |
1969 | ||
1970 | reply->meter_id = htonl(ms->meter_id); | |
1971 | reply->len = htons(len); | |
1972 | memset(reply->pad, 0, sizeof reply->pad); | |
1973 | reply->flow_count = htonl(ms->flow_count); | |
1974 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1975 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1976 | reply->duration_sec = htonl(ms->duration_sec); | |
1977 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1978 | ||
1979 | for (n = 0; n < ms->n_bands; ++n) { | |
1980 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1981 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1982 | ||
1983 | dst->packet_band_count = htonll(src->packet_count); | |
1984 | dst->byte_band_count = htonll(src->byte_count); | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1989 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1990 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1991 | * it across the call. | |
1992 | * | |
1993 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1994 | * message. Calling this function multiple times for a single 'msg' iterates | |
1995 | * through the replies. 'bands' is cleared for each reply. | |
1996 | * | |
1997 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1998 | * otherwise a positive errno value. */ | |
1999 | int | |
2000 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2001 | struct ofputil_meter_config *mc, | |
2002 | struct ofpbuf *bands) | |
2003 | { | |
2004 | const struct ofp13_meter_config *omc; | |
2005 | enum ofperr err; | |
2006 | ||
2007 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2008 | if (!msg->header) { |
638a19b0 JR |
2009 | ofpraw_pull_assert(msg); |
2010 | } | |
2011 | ||
6fd6ed71 | 2012 | if (!msg->size) { |
638a19b0 JR |
2013 | return EOF; |
2014 | } | |
2015 | ||
2016 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2017 | if (!omc) { | |
0445637d | 2018 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2019 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2020 | msg->size); |
638a19b0 JR |
2021 | return OFPERR_OFPBRC_BAD_LEN; |
2022 | } | |
2023 | ||
2024 | ofpbuf_clear(bands); | |
2025 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2026 | &mc->n_bands, bands); | |
2027 | if (err) { | |
2028 | return err; | |
2029 | } | |
2030 | mc->meter_id = ntohl(omc->meter_id); | |
2031 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2032 | mc->bands = bands->data; |
638a19b0 JR |
2033 | |
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | static enum ofperr | |
2038 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2039 | struct ofpbuf *bands) | |
2040 | { | |
2041 | const struct ofp13_meter_band_stats *ombs; | |
2042 | struct ofputil_meter_band_stats *mbs; | |
2043 | uint16_t n, i; | |
2044 | ||
0445637d JR |
2045 | ombs = ofpbuf_try_pull(msg, len); |
2046 | if (!ombs) { | |
2047 | return OFPERR_OFPBRC_BAD_LEN; | |
2048 | } | |
2049 | ||
638a19b0 JR |
2050 | n = len / sizeof *ombs; |
2051 | if (len != n * sizeof *ombs) { | |
2052 | return OFPERR_OFPBRC_BAD_LEN; | |
2053 | } | |
2054 | ||
638a19b0 JR |
2055 | mbs = ofpbuf_put_uninit(bands, len); |
2056 | ||
2057 | for (i = 0; i < n; ++i) { | |
2058 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2059 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2060 | } | |
2061 | *n_bands = n; | |
2062 | return 0; | |
2063 | } | |
2064 | ||
2065 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2066 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2067 | * decoded into 'bands'. | |
2068 | * | |
2069 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2070 | * message. Calling this function multiple times for a single 'msg' iterates | |
2071 | * through the replies. 'bands' is cleared for each reply. | |
2072 | * | |
2073 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2074 | * otherwise a positive errno value. */ | |
2075 | int | |
2076 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2077 | struct ofputil_meter_stats *ms, | |
2078 | struct ofpbuf *bands) | |
2079 | { | |
2080 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2081 | enum ofperr err; |
2082 | ||
2083 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2084 | if (!msg->header) { |
638a19b0 JR |
2085 | ofpraw_pull_assert(msg); |
2086 | } | |
2087 | ||
6fd6ed71 | 2088 | if (!msg->size) { |
638a19b0 JR |
2089 | return EOF; |
2090 | } | |
2091 | ||
2092 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2093 | if (!oms) { | |
0445637d | 2094 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2095 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2096 | msg->size); |
638a19b0 JR |
2097 | return OFPERR_OFPBRC_BAD_LEN; |
2098 | } | |
638a19b0 JR |
2099 | |
2100 | ofpbuf_clear(bands); | |
0445637d JR |
2101 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2102 | &ms->n_bands, bands); | |
638a19b0 JR |
2103 | if (err) { |
2104 | return err; | |
2105 | } | |
2106 | ms->meter_id = ntohl(oms->meter_id); | |
2107 | ms->flow_count = ntohl(oms->flow_count); | |
2108 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2109 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2110 | ms->duration_sec = ntohl(oms->duration_sec); | |
2111 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2112 | ms->bands = bands->data; |
638a19b0 JR |
2113 | |
2114 | return 0; | |
2115 | } | |
2116 | ||
2117 | void | |
2118 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2119 | struct ofputil_meter_features *mf) | |
2120 | { | |
2121 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2122 | ||
2123 | mf->max_meters = ntohl(omf->max_meter); | |
2124 | mf->band_types = ntohl(omf->band_types); | |
2125 | mf->capabilities = ntohl(omf->capabilities); | |
2126 | mf->max_bands = omf->max_bands; | |
2127 | mf->max_color = omf->max_color; | |
2128 | } | |
2129 | ||
2130 | struct ofpbuf * | |
2131 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2132 | const struct ofp_header *request) | |
2133 | { | |
2134 | struct ofpbuf *reply; | |
2135 | struct ofp13_meter_features *omf; | |
2136 | ||
2137 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2138 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2139 | ||
2140 | omf->max_meter = htonl(mf->max_meters); | |
2141 | omf->band_types = htonl(mf->band_types); | |
2142 | omf->capabilities = htonl(mf->capabilities); | |
2143 | omf->max_bands = mf->max_bands; | |
2144 | omf->max_color = mf->max_color; | |
2145 | ||
2146 | return reply; | |
2147 | } | |
2148 | ||
2149 | struct ofpbuf * | |
2150 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2151 | const struct ofputil_meter_mod *mm) | |
2152 | { | |
2153 | struct ofpbuf *msg; | |
2154 | ||
2155 | struct ofp13_meter_mod *omm; | |
2156 | ||
2157 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2158 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2159 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2160 | omm->command = htons(mm->command); | |
2161 | if (mm->command != OFPMC13_DELETE) { | |
2162 | omm->flags = htons(mm->meter.flags); | |
2163 | } | |
2164 | omm->meter_id = htonl(mm->meter.meter_id); | |
2165 | ||
2166 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2167 | ||
2168 | ofpmsg_update_length(msg); | |
2169 | return msg; | |
2170 | } | |
2171 | ||
aa6305ea SH |
2172 | static ovs_be16 |
2173 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2174 | enum ofputil_protocol protocol) | |
2175 | { | |
2176 | return htons(protocol & OFPUTIL_P_TID | |
2177 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2178 | : fm->command); | |
2179 | } | |
2180 | ||
2e4f5fcf | 2181 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2182 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2183 | struct ofpbuf * |
a9a2da38 | 2184 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2185 | enum ofputil_protocol protocol) |
2e4f5fcf | 2186 | { |
0fb88c18 BP |
2187 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2188 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2189 | struct ofpbuf *msg; |
2190 | ||
27527aa0 | 2191 | switch (protocol) { |
75fa58f8 | 2192 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2193 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2194 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2195 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2196 | case OFPUTIL_P_OF15_OXM: |
2197 | case OFPUTIL_P_OF16_OXM: { | |
aa6305ea | 2198 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2199 | int tailroom; |
aa6305ea | 2200 | |
75fa58f8 | 2201 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2202 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2203 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2204 | if ((protocol == OFPUTIL_P_OF11_STD |
2205 | && (fm->command == OFPFC_MODIFY || | |
2206 | fm->command == OFPFC_MODIFY_STRICT) | |
2207 | && fm->cookie_mask == htonll(0)) | |
2208 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2209 | ofm->cookie = fm->new_cookie; |
2210 | } else { | |
ba5cc068 | 2211 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2212 | } |
aa6305ea | 2213 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2214 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2215 | || (protocol != OFPUTIL_P_OF11_STD |
2216 | && (fm->command == OFPFC_DELETE || | |
2217 | fm->command == OFPFC_DELETE_STRICT))) { | |
2218 | ofm->table_id = fm->table_id; | |
2219 | } else { | |
2220 | ofm->table_id = 0; | |
2221 | } | |
aa6305ea SH |
2222 | ofm->command = fm->command; |
2223 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2224 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2225 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2226 | ofm->buffer_id = htonl(fm->buffer_id); |
2227 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2228 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2229 | ofm->flags = raw_flags; |
ca26eb44 RB |
2230 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2231 | ofm->importance = htons(fm->importance); | |
2232 | } else { | |
2233 | ofm->importance = 0; | |
2234 | } | |
75fa58f8 | 2235 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2236 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2237 | version); | |
aa6305ea SH |
2238 | break; |
2239 | } | |
2240 | ||
85813857 BP |
2241 | case OFPUTIL_P_OF10_STD: |
2242 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2243 | struct ofp10_flow_mod *ofm; |
2244 | ||
982697a4 BP |
2245 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2246 | fm->ofpacts_len); | |
2247 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2248 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2249 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2250 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2251 | ofm->idle_timeout = htons(fm->idle_timeout); |
2252 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2253 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2254 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2255 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2256 | ofm->flags = raw_flags; |
e3f8f887 JR |
2257 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2258 | version); | |
27527aa0 | 2259 | break; |
3f192f23 | 2260 | } |
2e4f5fcf | 2261 | |
85813857 BP |
2262 | case OFPUTIL_P_OF10_NXM: |
2263 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2264 | struct nx_flow_mod *nfm; |
2265 | int match_len; | |
2266 | ||
982697a4 BP |
2267 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2268 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2269 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2270 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2271 | nfm->cookie = fm->new_cookie; |
81a76618 | 2272 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2273 | nfm = msg->msg; |
2e4f5fcf BP |
2274 | nfm->idle_timeout = htons(fm->idle_timeout); |
2275 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2276 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2277 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2278 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2279 | nfm->flags = raw_flags; |
2e4f5fcf | 2280 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2281 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2282 | version); | |
27527aa0 | 2283 | break; |
3f192f23 | 2284 | } |
27527aa0 BP |
2285 | |
2286 | default: | |
428b2edd | 2287 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2288 | } |
2289 | ||
982697a4 | 2290 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2291 | return msg; |
2292 | } | |
2293 | ||
90bf1e07 | 2294 | static enum ofperr |
0157ad3a SH |
2295 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2296 | const struct ofp10_flow_stats_request *ofsr, | |
2297 | bool aggregate) | |
2e4f5fcf | 2298 | { |
2e4f5fcf | 2299 | fsr->aggregate = aggregate; |
81a76618 | 2300 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2301 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2302 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2303 | fsr->table_id = ofsr->table_id; |
e729e793 | 2304 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2305 | |
2306 | return 0; | |
2307 | } | |
2308 | ||
0157ad3a SH |
2309 | static enum ofperr |
2310 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
8d8ab6c2 | 2311 | struct ofpbuf *b, bool aggregate, |
3cddeff0 YHW |
2312 | const struct tun_table *tun_table, |
2313 | const struct vl_mff_map *vl_mff_map) | |
0157ad3a SH |
2314 | { |
2315 | const struct ofp11_flow_stats_request *ofsr; | |
2316 | enum ofperr error; | |
2317 | ||
2318 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2319 | fsr->aggregate = aggregate; | |
2320 | fsr->table_id = ofsr->table_id; | |
2321 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2322 | if (error) { | |
2323 | return error; | |
2324 | } | |
7395c052 | 2325 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2326 | fsr->cookie = ofsr->cookie; |
2327 | fsr->cookie_mask = ofsr->cookie_mask; | |
3cddeff0 YHW |
2328 | error = ofputil_pull_ofp11_match(b, tun_table, vl_mff_map, &fsr->match, |
2329 | NULL); | |
0157ad3a SH |
2330 | if (error) { |
2331 | return error; | |
2332 | } | |
2333 | ||
2334 | return 0; | |
2335 | } | |
2336 | ||
90bf1e07 | 2337 | static enum ofperr |
81d1ea94 | 2338 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 | 2339 | struct ofpbuf *b, bool aggregate, |
3cddeff0 YHW |
2340 | const struct tun_table *tun_table, |
2341 | const struct vl_mff_map *vl_mff_map) | |
2e4f5fcf BP |
2342 | { |
2343 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2344 | enum ofperr error; |
2e4f5fcf | 2345 | |
982697a4 | 2346 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2347 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
d7892c81 | 2348 | &fsr->cookie, &fsr->cookie_mask, false, tun_table, |
3cddeff0 | 2349 | vl_mff_map); |
2e4f5fcf BP |
2350 | if (error) { |
2351 | return error; | |
2352 | } | |
6fd6ed71 | 2353 | if (b->size) { |
90bf1e07 | 2354 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2355 | } |
2356 | ||
2357 | fsr->aggregate = aggregate; | |
4e022ec0 | 2358 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2359 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2360 | fsr->table_id = nfsr->table_id; |
2361 | ||
2362 | return 0; | |
2363 | } | |
2364 | ||
e8f9a7bb | 2365 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2366 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2367 | * | |
2368 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2369 | * request all queues. */ | |
e8f9a7bb VG |
2370 | struct ofpbuf * |
2371 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2372 | ofp_port_t port, |
2373 | uint32_t queue) | |
e8f9a7bb VG |
2374 | { |
2375 | struct ofpbuf *request; | |
2376 | ||
2377 | if (version == OFP10_VERSION) { | |
2378 | struct ofp10_queue_get_config_request *qgcr10; | |
2379 | ||
2380 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2381 | version, 0); | |
2382 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2383 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2384 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2385 | struct ofp11_queue_get_config_request *qgcr11; |
2386 | ||
2387 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2388 | version, 0); | |
2389 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2390 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2391 | } else { |
2392 | struct ofp14_queue_desc_request *qdr14; | |
2393 | ||
2394 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2395 | version, 0); | |
2396 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2397 | qdr14->port = ofputil_port_to_ofp11(port); | |
2398 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2399 | } |
2400 | ||
2401 | return request; | |
2402 | } | |
2403 | ||
2404 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2405 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2406 | * code. */ | |
2407 | enum ofperr | |
2408 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2409 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2410 | { |
2411 | const struct ofp10_queue_get_config_request *qgcr10; | |
2412 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2413 | const struct ofp14_queue_desc_request *qdr14; |
0a2869d5 BP |
2414 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2415 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
e8f9a7bb VG |
2416 | |
2417 | switch ((int) raw) { | |
2418 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2419 | qgcr10 = b.data; |
e8f9a7bb | 2420 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2421 | *queue = OFPQ_ALL; |
56085be5 | 2422 | break; |
e8f9a7bb VG |
2423 | |
2424 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2425 | qgcr11 = b.data; |
e016fb63 | 2426 | *queue = OFPQ_ALL; |
56085be5 BP |
2427 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2428 | if (error || *port == OFPP_ANY) { | |
2429 | return error; | |
2430 | } | |
2431 | break; | |
2432 | ||
e016fb63 BP |
2433 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2434 | qdr14 = b.data; | |
2435 | *queue = ntohl(qdr14->queue); | |
2436 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2437 | ||
56085be5 BP |
2438 | default: |
2439 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2440 | } |
2441 | ||
56085be5 BP |
2442 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2443 | ? 0 | |
2444 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2445 | } |
2446 | ||
2447 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2448 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2449 | * may append information about individual queues with | |
2450 | * ofputil_append_queue_get_config_reply(). */ | |
2451 | void | |
2452 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2453 | struct ovs_list *replies) | |
e8f9a7bb | 2454 | { |
e8f9a7bb VG |
2455 | struct ofpbuf *reply; |
2456 | enum ofperr error; | |
e8f9a7bb | 2457 | ofp_port_t port; |
e016fb63 | 2458 | uint32_t queue; |
e8f9a7bb | 2459 | |
e016fb63 | 2460 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2461 | ovs_assert(!error); |
2462 | ||
e016fb63 | 2463 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2464 | switch ((int) raw) { |
2465 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2466 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2467 | request, 0); |
2468 | struct ofp10_queue_get_config_reply *qgcr10 | |
2469 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2470 | qgcr10->port = htons(ofp_to_u16(port)); |
2471 | break; | |
2472 | ||
2473 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2474 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2475 | request, 0); |
2476 | struct ofp11_queue_get_config_reply *qgcr11 | |
2477 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2478 | qgcr11->port = ofputil_port_to_ofp11(port); |
2479 | break; | |
2480 | ||
e016fb63 BP |
2481 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2482 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2483 | break; | |
2484 | ||
e8f9a7bb | 2485 | default: |
428b2edd | 2486 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2487 | } |
2488 | ||
417e7e66 BW |
2489 | ovs_list_init(replies); |
2490 | ovs_list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2491 | } |
2492 | ||
2493 | static void | |
d2e5fa1f BP |
2494 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2495 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2496 | { |
2497 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2498 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2499 | |
2500 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2501 | oqpr->prop_header.property = htons(property); | |
2502 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2503 | oqpr->rate = htons(rate); | |
2504 | } | |
2505 | } | |
2506 | ||
e016fb63 BP |
2507 | static void |
2508 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2509 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2510 | { | |
2511 | if (rate != UINT16_MAX) { | |
2512 | ofpprop_put_u16(reply, type, rate); | |
2513 | } | |
2514 | } | |
2515 | ||
e8f9a7bb | 2516 | void |
e016fb63 BP |
2517 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2518 | struct ovs_list *replies) | |
e8f9a7bb | 2519 | { |
e016fb63 | 2520 | enum ofp_version ofp_version = ofpmp_version(replies); |
417e7e66 | 2521 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
e016fb63 BP |
2522 | size_t start_ofs = reply->size; |
2523 | size_t len_ofs; | |
e8f9a7bb VG |
2524 | ovs_be16 *len; |
2525 | ||
e016fb63 BP |
2526 | if (ofp_version < OFP14_VERSION) { |
2527 | if (ofp_version < OFP12_VERSION) { | |
2528 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2529 | |
e016fb63 BP |
2530 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2531 | opq10->queue_id = htonl(qc->queue); | |
2532 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2533 | } else { | |
2534 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2535 | |
e016fb63 BP |
2536 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2537 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2538 | opq12->queue_id = htonl(qc->queue); | |
2539 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2540 | } | |
e8f9a7bb | 2541 | |
e016fb63 BP |
2542 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2543 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2544 | } else { | |
2545 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2546 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2547 | oqd->queue_id = htonl(qc->queue); | |
2548 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2549 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2550 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2551 | } | |
e8f9a7bb VG |
2552 | |
2553 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2554 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2555 | |
e016fb63 BP |
2556 | if (ofp_version >= OFP14_VERSION) { |
2557 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2558 | } |
e8f9a7bb VG |
2559 | } |
2560 | ||
2561 | static enum ofperr | |
d2e5fa1f BP |
2562 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2563 | uint16_t *rate) | |
e8f9a7bb | 2564 | { |
d2e5fa1f | 2565 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2566 | |
2567 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2568 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2569 | *rate = ntohs(oqpr->rate); |
2570 | return 0; | |
2571 | } else { | |
2572 | return OFPERR_OFPBRC_BAD_LEN; | |
2573 | } | |
2574 | } | |
2575 | ||
e016fb63 BP |
2576 | static int |
2577 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2578 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2579 | { |
e016fb63 BP |
2580 | const struct ofp_header *oh = msg->header; |
2581 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2582 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2583 | |
e016fb63 BP |
2584 | /* Obtain the port number from the message header. */ |
2585 | if (oh->version == OFP10_VERSION) { | |
2586 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2587 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2588 | } else { | |
2589 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2590 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2591 | &queue->port); | |
2592 | if (error) { | |
2593 | return error; | |
2594 | } | |
e8f9a7bb VG |
2595 | } |
2596 | ||
e016fb63 | 2597 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2598 | if (oh->version < OFP12_VERSION) { |
2599 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2600 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2601 | if (!opq10) { |
2602 | return OFPERR_OFPBRC_BAD_LEN; | |
2603 | } | |
e016fb63 | 2604 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2605 | len = ntohs(opq10->len); |
2606 | opq_len = sizeof *opq10; | |
2607 | } else { | |
2608 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2609 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2610 | if (!opq12) { |
2611 | return OFPERR_OFPBRC_BAD_LEN; | |
2612 | } | |
e016fb63 | 2613 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2614 | len = ntohs(opq12->len); |
2615 | opq_len = sizeof *opq12; | |
2616 | } | |
2617 | ||
e016fb63 BP |
2618 | /* Length check. */ |
2619 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2620 | return OFPERR_OFPBRC_BAD_LEN; |
2621 | } | |
2622 | len -= opq_len; | |
2623 | ||
e016fb63 BP |
2624 | /* Pull properties. The format of these properties differs from used in |
2625 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2626 | while (len > 0) { |
d2e5fa1f | 2627 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2628 | unsigned int property; |
2629 | unsigned int prop_len; | |
2630 | enum ofperr error = 0; | |
2631 | ||
e016fb63 | 2632 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2633 | prop_len = ntohs(hdr->len); |
fafbfa6e | 2634 | if (prop_len < sizeof *hdr || prop_len > len || prop_len % 8) { |
e8f9a7bb VG |
2635 | return OFPERR_OFPBRC_BAD_LEN; |
2636 | } | |
2637 | ||
2638 | property = ntohs(hdr->property); | |
2639 | switch (property) { | |
d2e5fa1f BP |
2640 | case OFPQT10_MIN_RATE: |
2641 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2642 | break; |
2643 | ||
d2e5fa1f BP |
2644 | case OFPQT11_MAX_RATE: |
2645 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2646 | break; |
2647 | ||
2648 | default: | |
2649 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2650 | break; | |
2651 | } | |
2652 | if (error) { | |
2653 | return error; | |
2654 | } | |
2655 | ||
e016fb63 | 2656 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2657 | len -= prop_len; |
2658 | } | |
2659 | return 0; | |
2660 | } | |
2661 | ||
e016fb63 BP |
2662 | static int |
2663 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2664 | struct ofputil_queue_config *queue) | |
2665 | { | |
2666 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2667 | if (!oqd14) { | |
2668 | return OFPERR_OFPBRC_BAD_LEN; | |
2669 | } | |
2670 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2671 | if (error) { | |
2672 | return error; | |
2673 | } | |
2674 | queue->queue = ntohl(oqd14->queue_id); | |
2675 | ||
2676 | /* Length check. */ | |
2677 | unsigned int len = ntohs(oqd14->len); | |
2678 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2679 | return OFPERR_OFPBRC_BAD_LEN; | |
2680 | } | |
2681 | len -= sizeof *oqd14; | |
2682 | ||
0a2869d5 BP |
2683 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
2684 | len); | |
e016fb63 BP |
2685 | while (properties.size > 0) { |
2686 | struct ofpbuf payload; | |
2687 | uint64_t type; | |
2688 | ||
2689 | error = ofpprop_pull(&properties, &payload, &type); | |
2690 | if (error) { | |
2691 | return error; | |
2692 | } | |
2693 | ||
2694 | switch (type) { | |
2695 | case OFPQDPT14_MIN_RATE: | |
2696 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2697 | break; | |
2698 | ||
2699 | case OFPQDPT14_MAX_RATE: | |
2700 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2701 | break; | |
2702 | ||
2703 | default: | |
2704 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2705 | break; | |
2706 | } | |
2707 | ||
2708 | if (error) { | |
2709 | return error; | |
2710 | } | |
2711 | } | |
2712 | ||
2713 | return 0; | |
2714 | } | |
2715 | ||
2716 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2717 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2718 | * must already have pulled off the main header. | |
2719 | * | |
2720 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2721 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2722 | * problem decoding 'reply'. */ | |
2723 | int | |
2724 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2725 | struct ofputil_queue_config *queue) | |
2726 | { | |
2727 | enum ofpraw raw; | |
2728 | if (!msg->header) { | |
2729 | /* Pull OpenFlow header. */ | |
2730 | raw = ofpraw_pull_assert(msg); | |
2731 | ||
2732 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2733 | * doesn't have one at all). */ | |
2734 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2735 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2736 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2737 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2738 | } else { | |
2739 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2740 | } | |
2741 | } else { | |
2742 | raw = ofpraw_decode_assert(msg->header); | |
2743 | } | |
2744 | ||
2745 | queue->min_rate = UINT16_MAX; | |
2746 | queue->max_rate = UINT16_MAX; | |
2747 | ||
2748 | if (!msg->size) { | |
2749 | return EOF; | |
2750 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2751 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2752 | } else { | |
2753 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2754 | } | |
2755 | } | |
2756 | ||
2e4f5fcf | 2757 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 | 2758 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
3cddeff0 YHW |
2759 | * successful, otherwise an OpenFlow error code. |
2760 | * | |
2761 | * 'vl_mff_map' is an optional parameter that is used to validate the length | |
2762 | * of variable length mf_fields in 'match'. If it is not provided, the | |
2763 | * default mf_fields with maximum length will be used. */ | |
90bf1e07 | 2764 | enum ofperr |
81d1ea94 | 2765 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 | 2766 | const struct ofp_header *oh, |
3cddeff0 YHW |
2767 | const struct tun_table *tun_table, |
2768 | const struct vl_mff_map *vl_mff_map) | |
2e4f5fcf | 2769 | { |
0a2869d5 BP |
2770 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2771 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 2772 | switch ((int) raw) { |
cfc23141 | 2773 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2774 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2775 | |
617da9cd | 2776 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2777 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2778 | |
2779 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
3cddeff0 YHW |
2780 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false, tun_table, |
2781 | vl_mff_map); | |
2e4f5fcf | 2782 | |
617da9cd | 2783 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
3cddeff0 YHW |
2784 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true, tun_table, |
2785 | vl_mff_map); | |
617da9cd | 2786 | |
982697a4 | 2787 | case OFPRAW_NXST_FLOW_REQUEST: |
3cddeff0 YHW |
2788 | return ofputil_decode_nxst_flow_request(fsr, &b, false, tun_table, |
2789 | vl_mff_map); | |
2e4f5fcf | 2790 | |
982697a4 | 2791 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
3cddeff0 YHW |
2792 | return ofputil_decode_nxst_flow_request(fsr, &b, true, tun_table, |
2793 | vl_mff_map); | |
2e4f5fcf BP |
2794 | |
2795 | default: | |
2796 | /* Hey, the caller lied. */ | |
428b2edd | 2797 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2798 | } |
2799 | } | |
2800 | ||
2801 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2802 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2803 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2804 | struct ofpbuf * |
81d1ea94 | 2805 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2806 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2807 | { |
2808 | struct ofpbuf *msg; | |
982697a4 | 2809 | enum ofpraw raw; |
2e4f5fcf | 2810 | |
27527aa0 | 2811 | switch (protocol) { |
75fa58f8 | 2812 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2813 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2814 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2815 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2816 | case OFPUTIL_P_OF15_OXM: |
2817 | case OFPUTIL_P_OF16_OXM: { | |
06516c65 SH |
2818 | struct ofp11_flow_stats_request *ofsr; |
2819 | ||
2820 | raw = (fsr->aggregate | |
617da9cd | 2821 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2822 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2823 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2824 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2825 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2826 | ofsr->table_id = fsr->table_id; | |
2827 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2828 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2829 | ofsr->cookie = fsr->cookie; |
2830 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2831 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2832 | break; |
2833 | } | |
2834 | ||
85813857 BP |
2835 | case OFPUTIL_P_OF10_STD: |
2836 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2837 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2838 | |
982697a4 | 2839 | raw = (fsr->aggregate |
617da9cd | 2840 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2841 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2842 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2843 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2844 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2845 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2846 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2847 | break; |
2848 | } | |
2849 | ||
85813857 BP |
2850 | case OFPUTIL_P_OF10_NXM: |
2851 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2852 | struct nx_flow_stats_request *nfsr; |
2853 | int match_len; | |
2854 | ||
982697a4 BP |
2855 | raw = (fsr->aggregate |
2856 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2857 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2858 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2859 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2860 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2861 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2862 | |
6fd6ed71 | 2863 | nfsr = msg->msg; |
4e022ec0 | 2864 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2865 | nfsr->match_len = htons(match_len); |
2866 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2867 | break; |
2868 | } | |
2869 | ||
2870 | default: | |
428b2edd | 2871 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2872 | } |
2873 | ||
2874 | return msg; | |
2875 | } | |
d1e2cf21 | 2876 | |
4ffd1b43 | 2877 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2878 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2879 | * |
2880 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2881 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2882 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2883 | * pointers null and not modify them between calls. | |
2884 | * | |
f27f2134 BP |
2885 | * Most switches don't send the values needed to populate fs->idle_age and |
2886 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2887 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2888 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2889 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2890 | * | |
f25d0cf3 BP |
2891 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2892 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2893 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2894 | * | |
4ffd1b43 BP |
2895 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2896 | * otherwise a positive errno value. */ | |
2897 | int | |
2898 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2899 | struct ofpbuf *msg, |
f25d0cf3 BP |
2900 | bool flow_age_extension, |
2901 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2902 | { |
0fb88c18 | 2903 | const struct ofp_header *oh; |
8f2cded4 | 2904 | size_t instructions_len; |
982697a4 BP |
2905 | enum ofperr error; |
2906 | enum ofpraw raw; | |
4ffd1b43 | 2907 | |
6fd6ed71 | 2908 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2909 | : ofpraw_pull(&raw, msg)); |
2910 | if (error) { | |
2911 | return error; | |
4ffd1b43 | 2912 | } |
6fd6ed71 | 2913 | oh = msg->header; |
4ffd1b43 | 2914 | |
6fd6ed71 | 2915 | if (!msg->size) { |
4ffd1b43 | 2916 | return EOF; |
2e1ae200 JR |
2917 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2918 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2919 | const struct ofp11_flow_stats *ofs; |
2920 | size_t length; | |
2921 | uint16_t padded_match_len; | |
2922 | ||
2923 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2924 | if (!ofs) { | |
437d0d22 | 2925 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2926 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2927 | return EINVAL; |
2928 | } | |
2929 | ||
2930 | length = ntohs(ofs->length); | |
2931 | if (length < sizeof *ofs) { | |
2932 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2933 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2934 | return EINVAL; |
2935 | } | |
2936 | ||
3cddeff0 | 2937 | if (ofputil_pull_ofp11_match(msg, NULL, NULL, &fs->match, |
8d8ab6c2 | 2938 | &padded_match_len)) { |
6ec5f0c5 SH |
2939 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2940 | return EINVAL; | |
2941 | } | |
8f2cded4 | 2942 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2943 | |
81a76618 | 2944 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2945 | fs->table_id = ofs->table_id; |
2946 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2947 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2948 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2949 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2950 | if (oh->version >= OFP14_VERSION) { |
2951 | fs->importance = ntohs(ofs->importance); | |
2952 | } else { | |
2953 | fs->importance = 0; | |
2954 | } | |
0fb88c18 BP |
2955 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2956 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2957 | &fs->flags); | |
2958 | if (error) { | |
2959 | return error; | |
2960 | } | |
2961 | } else { | |
2962 | fs->flags = 0; | |
2963 | } | |
6ec5f0c5 SH |
2964 | fs->idle_age = -1; |
2965 | fs->hard_age = -1; | |
2966 | fs->cookie = ofs->cookie; | |
2967 | fs->packet_count = ntohll(ofs->packet_count); | |
2968 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2969 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2970 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2971 | size_t length; |
2972 | ||
2973 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2974 | if (!ofs) { | |
437d0d22 | 2975 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2976 | "bytes at end", msg->size); |
4ffd1b43 BP |
2977 | return EINVAL; |
2978 | } | |
2979 | ||
2980 | length = ntohs(ofs->length); | |
2981 | if (length < sizeof *ofs) { | |
2982 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2983 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2984 | return EINVAL; |
2985 | } | |
8f2cded4 | 2986 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2987 | |
2988 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2989 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2990 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2991 | fs->table_id = ofs->table_id; |
2992 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2993 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2994 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2995 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2996 | fs->importance = 0; |
f27f2134 BP |
2997 | fs->idle_age = -1; |
2998 | fs->hard_age = -1; | |
4ffd1b43 BP |
2999 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
3000 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 3001 | fs->flags = 0; |
982697a4 | 3002 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 3003 | const struct nx_flow_stats *nfs; |
8f2cded4 | 3004 | size_t match_len, length; |
4ffd1b43 BP |
3005 | |
3006 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
3007 | if (!nfs) { | |
437d0d22 | 3008 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 3009 | "bytes at end", msg->size); |
4ffd1b43 BP |
3010 | return EINVAL; |
3011 | } | |
3012 | ||
3013 | length = ntohs(nfs->length); | |
3014 | match_len = ntohs(nfs->match_len); | |
3015 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
3016 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
3017 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
3018 | return EINVAL; |
3019 | } | |
d7892c81 | 3020 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL, false, NULL, |
3cddeff0 | 3021 | NULL)) { |
4ffd1b43 BP |
3022 | return EINVAL; |
3023 | } | |
8f2cded4 | 3024 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
3025 | |
3026 | fs->cookie = nfs->cookie; | |
3027 | fs->table_id = nfs->table_id; | |
3028 | fs->duration_sec = ntohl(nfs->duration_sec); | |
3029 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 3030 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
3031 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
3032 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 3033 | fs->importance = 0; |
f27f2134 BP |
3034 | fs->idle_age = -1; |
3035 | fs->hard_age = -1; | |
3036 | if (flow_age_extension) { | |
3037 | if (nfs->idle_age) { | |
3038 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
3039 | } | |
3040 | if (nfs->hard_age) { | |
3041 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
3042 | } | |
3043 | } | |
4ffd1b43 BP |
3044 | fs->packet_count = ntohll(nfs->packet_count); |
3045 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 3046 | fs->flags = 0; |
4ffd1b43 | 3047 | } else { |
428b2edd | 3048 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
3049 | } |
3050 | ||
8f2cded4 | 3051 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
5c7c16d8 | 3052 | NULL, NULL, ofpacts)) { |
8f2cded4 BP |
3053 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); |
3054 | return EINVAL; | |
3055 | } | |
6fd6ed71 PS |
3056 | fs->ofpacts = ofpacts->data; |
3057 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3058 | |
4ffd1b43 BP |
3059 | return 0; |
3060 | } | |
3061 | ||
5e9d0469 BP |
3062 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3063 | * | |
3064 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3065 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3066 | static uint64_t | |
3067 | unknown_to_zero(uint64_t count) | |
3068 | { | |
3069 | return count != UINT64_MAX ? count : 0; | |
3070 | } | |
3071 | ||
349adfb2 BP |
3072 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3073 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3074 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3075 | void |
3076 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
8d8ab6c2 JG |
3077 | struct ovs_list *replies, |
3078 | const struct tun_table *tun_table) | |
349adfb2 | 3079 | { |
8d8ab6c2 JG |
3080 | struct ofputil_flow_stats *fs_ = CONST_CAST(struct ofputil_flow_stats *, |
3081 | fs); | |
3082 | const struct tun_table *orig_tun_table; | |
417e7e66 | 3083 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 3084 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3085 | enum ofp_version version = ofpmp_version(replies); |
3086 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3087 | |
8d8ab6c2 JG |
3088 | orig_tun_table = fs->match.flow.tunnel.metadata.tab; |
3089 | fs_->match.flow.tunnel.metadata.tab = tun_table; | |
3090 | ||
2e1ae200 | 3091 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3092 | struct ofp11_flow_stats *ofs; |
3093 | ||
3094 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3095 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3096 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3097 | version); | |
22a86f18 SH |
3098 | |
3099 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3100 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3101 | ofs->table_id = fs->table_id; |
3102 | ofs->pad = 0; | |
3103 | ofs->duration_sec = htonl(fs->duration_sec); | |
3104 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3105 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3106 | ofs->idle_timeout = htons(fs->idle_timeout); |
3107 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3108 | if (version >= OFP14_VERSION) { |
3109 | ofs->importance = htons(fs->importance); | |
3110 | } else { | |
3111 | ofs->importance = 0; | |
3112 | } | |
0fb88c18 | 3113 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3114 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3115 | } else { |
3116 | ofs->flags = 0; | |
3117 | } | |
22a86f18 SH |
3118 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3119 | ofs->cookie = fs->cookie; | |
3120 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3121 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3122 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3123 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3124 | |
1a59dc2c | 3125 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3126 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3127 | version); | |
1a59dc2c | 3128 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3129 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3130 | ofs->table_id = fs->table_id; |
3131 | ofs->pad = 0; | |
81a76618 | 3132 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3133 | ofs->duration_sec = htonl(fs->duration_sec); |
3134 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3135 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3136 | ofs->idle_timeout = htons(fs->idle_timeout); |
3137 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3138 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3139 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3140 | put_32aligned_be64(&ofs->packet_count, |
3141 | htonll(unknown_to_zero(fs->packet_count))); | |
3142 | put_32aligned_be64(&ofs->byte_count, | |
3143 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3144 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3145 | struct nx_flow_stats *nfs; |
1a59dc2c | 3146 | int match_len; |
349adfb2 | 3147 | |
1a59dc2c | 3148 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3149 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3150 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3151 | version); | |
1a59dc2c | 3152 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3153 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3154 | nfs->table_id = fs->table_id; |
3155 | nfs->pad = 0; | |
3156 | nfs->duration_sec = htonl(fs->duration_sec); | |
3157 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3158 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3159 | nfs->idle_timeout = htons(fs->idle_timeout); |
3160 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3161 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3162 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3163 | : UINT16_MAX); | |
3164 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3165 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3166 | : UINT16_MAX); | |
1a59dc2c | 3167 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3168 | nfs->cookie = fs->cookie; |
3169 | nfs->packet_count = htonll(fs->packet_count); | |
3170 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3171 | } else { |
428b2edd | 3172 | OVS_NOT_REACHED(); |
349adfb2 | 3173 | } |
f25d0cf3 | 3174 | |
982697a4 | 3175 | ofpmp_postappend(replies, start_ofs); |
8d8ab6c2 | 3176 | fs_->match.flow.tunnel.metadata.tab = orig_tun_table; |
349adfb2 BP |
3177 | } |
3178 | ||
76c93b22 | 3179 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3180 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3181 | struct ofpbuf * |
3182 | ofputil_encode_aggregate_stats_reply( | |
3183 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3184 | const struct ofp_header *request) |
76c93b22 | 3185 | { |
a814ba0f BP |
3186 | struct ofp_aggregate_stats_reply *asr; |
3187 | uint64_t packet_count; | |
3188 | uint64_t byte_count; | |
76c93b22 | 3189 | struct ofpbuf *msg; |
982697a4 | 3190 | enum ofpraw raw; |
76c93b22 | 3191 | |
982697a4 | 3192 | ofpraw_decode(&raw, request); |
617da9cd | 3193 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3194 | packet_count = unknown_to_zero(stats->packet_count); |
3195 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3196 | } else { |
a814ba0f BP |
3197 | packet_count = stats->packet_count; |
3198 | byte_count = stats->byte_count; | |
76c93b22 BP |
3199 | } |
3200 | ||
a814ba0f BP |
3201 | msg = ofpraw_alloc_stats_reply(request, 0); |
3202 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3203 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3204 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3205 | asr->flow_count = htonl(stats->flow_count); | |
3206 | ||
76c93b22 BP |
3207 | return msg; |
3208 | } | |
3209 | ||
982697a4 BP |
3210 | enum ofperr |
3211 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3212 | const struct ofp_header *reply) | |
3213 | { | |
0a2869d5 | 3214 | struct ofpbuf msg = ofpbuf_const_initializer(reply, ntohs(reply->length)); |
a814ba0f BP |
3215 | ofpraw_pull_assert(&msg); |
3216 | ||
0a2869d5 | 3217 | struct ofp_aggregate_stats_reply *asr = msg.msg; |
a814ba0f BP |
3218 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3219 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3220 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3221 | |
3222 | return 0; | |
3223 | } | |
3224 | ||
b78f6b77 BP |
3225 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3226 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3227 | * an OpenFlow error code. */ | |
90bf1e07 | 3228 | enum ofperr |
9b045a0c | 3229 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3230 | const struct ofp_header *oh) |
9b045a0c | 3231 | { |
0a2869d5 BP |
3232 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3233 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3234 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3235 | const struct ofp12_flow_removed *ofr; | |
3236 | enum ofperr error; | |
3237 | ||
3238 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3239 | ||
3cddeff0 | 3240 | error = ofputil_pull_ofp11_match(&b, NULL, NULL, &fr->match, NULL); |
eefbf181 SH |
3241 | if (error) { |
3242 | return error; | |
3243 | } | |
3244 | ||
81a76618 | 3245 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3246 | fr->cookie = ofr->cookie; |
3247 | fr->reason = ofr->reason; | |
95216219 | 3248 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3249 | fr->duration_sec = ntohl(ofr->duration_sec); |
3250 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3251 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3252 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3253 | fr->packet_count = ntohll(ofr->packet_count); | |
3254 | fr->byte_count = ntohll(ofr->byte_count); | |
3255 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3256 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3257 | |
982697a4 BP |
3258 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3259 | ||
81a76618 BP |
3260 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3261 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3262 | fr->cookie = ofr->cookie; |
3263 | fr->reason = ofr->reason; | |
95216219 | 3264 | fr->table_id = 255; |
9b045a0c BP |
3265 | fr->duration_sec = ntohl(ofr->duration_sec); |
3266 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3267 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3268 | fr->hard_timeout = 0; |
9b045a0c BP |
3269 | fr->packet_count = ntohll(ofr->packet_count); |
3270 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3271 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3272 | struct nx_flow_removed *nfr; |
c2725b60 | 3273 | enum ofperr error; |
9b045a0c | 3274 | |
9b045a0c | 3275 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
8d8ab6c2 | 3276 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, NULL, |
d7892c81 | 3277 | NULL, false, NULL, NULL); |
9b045a0c BP |
3278 | if (error) { |
3279 | return error; | |
3280 | } | |
6fd6ed71 | 3281 | if (b.size) { |
90bf1e07 | 3282 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3283 | } |
3284 | ||
81a76618 | 3285 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3286 | fr->cookie = nfr->cookie; |
3287 | fr->reason = nfr->reason; | |
745bfd5e | 3288 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3289 | fr->duration_sec = ntohl(nfr->duration_sec); |
3290 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3291 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3292 | fr->hard_timeout = 0; |
9b045a0c BP |
3293 | fr->packet_count = ntohll(nfr->packet_count); |
3294 | fr->byte_count = ntohll(nfr->byte_count); | |
3295 | } else { | |
428b2edd | 3296 | OVS_NOT_REACHED(); |
9b045a0c BP |
3297 | } |
3298 | ||
3299 | return 0; | |
3300 | } | |
3301 | ||
588cd7b5 | 3302 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3303 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3304 | * message. */ |
3305 | struct ofpbuf * | |
3306 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3307 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3308 | { |
3309 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3310 | enum ofp_flow_removed_reason reason = fr->reason; |
3311 | ||
3312 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3313 | reason = OFPRR_DELETE; | |
3314 | } | |
588cd7b5 | 3315 | |
27527aa0 | 3316 | switch (protocol) { |
75fa58f8 | 3317 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3318 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3319 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 3320 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
3321 | case OFPUTIL_P_OF15_OXM: |
3322 | case OFPUTIL_P_OF16_OXM: { | |
83974732 SH |
3323 | struct ofp12_flow_removed *ofr; |
3324 | ||
3325 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3326 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3327 | htonl(0), |
3328 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3329 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3330 | ofr->cookie = fr->cookie; | |
81a76618 | 3331 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3332 | ofr->reason = reason; |
95216219 | 3333 | ofr->table_id = fr->table_id; |
83974732 SH |
3334 | ofr->duration_sec = htonl(fr->duration_sec); |
3335 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3336 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3337 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3338 | ofr->packet_count = htonll(fr->packet_count); |
3339 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3340 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3341 | break; |
3342 | } | |
3343 | ||
85813857 BP |
3344 | case OFPUTIL_P_OF10_STD: |
3345 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3346 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3347 | |
982697a4 BP |
3348 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3349 | htonl(0), 0); | |
3350 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3351 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3352 | ofr->cookie = fr->cookie; |
81a76618 | 3353 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3354 | ofr->reason = reason; |
588cd7b5 BP |
3355 | ofr->duration_sec = htonl(fr->duration_sec); |
3356 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3357 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3358 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3359 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3360 | break; |
3361 | } | |
3362 | ||
85813857 BP |
3363 | case OFPUTIL_P_OF10_NXM: |
3364 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3365 | struct nx_flow_removed *nfr; |
3366 | int match_len; | |
3367 | ||
982697a4 BP |
3368 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3369 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3370 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3371 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3372 | |
6fd6ed71 | 3373 | nfr = msg->msg; |
588cd7b5 | 3374 | nfr->cookie = fr->cookie; |
81a76618 | 3375 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3376 | nfr->reason = reason; |
745bfd5e | 3377 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3378 | nfr->duration_sec = htonl(fr->duration_sec); |
3379 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3380 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3381 | nfr->match_len = htons(match_len); | |
3382 | nfr->packet_count = htonll(fr->packet_count); | |
3383 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3384 | break; |
3385 | } | |
3386 | ||
3387 | default: | |
428b2edd | 3388 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3389 | } |
3390 | ||
3391 | return msg; | |
3392 | } | |
3393 | ||
6409e008 BP |
3394 | /* The caller has done basic initialization of '*pin'; the other output |
3395 | * arguments needs to be initialized. */ | |
3396 | static enum ofperr | |
77ab5fd2 | 3397 | decode_nx_packet_in2(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3398 | const struct tun_table *tun_table, |
3cddeff0 | 3399 | const struct vl_mff_map *vl_mff_map, |
6409e008 | 3400 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3401 | size_t *total_len, uint32_t *buffer_id, |
3402 | struct ofpbuf *continuation) | |
6409e008 BP |
3403 | { |
3404 | *total_len = 0; | |
3405 | *buffer_id = UINT32_MAX; | |
3406 | ||
3407 | struct ofpbuf properties; | |
3408 | ofpbuf_use_const(&properties, oh, ntohs(oh->length)); | |
3409 | ofpraw_pull_assert(&properties); | |
3410 | ||
3411 | while (properties.size > 0) { | |
3412 | struct ofpbuf payload; | |
3413 | uint64_t type; | |
3414 | ||
3415 | enum ofperr error = ofpprop_pull(&properties, &payload, &type); | |
3416 | if (error) { | |
3417 | return error; | |
3418 | } | |
3419 | ||
3420 | switch (type) { | |
3421 | case NXPINT_PACKET: | |
3422 | pin->packet = payload.msg; | |
4adaf182 | 3423 | pin->packet_len = ofpbuf_msgsize(&payload); |
6409e008 BP |
3424 | break; |
3425 | ||
3426 | case NXPINT_FULL_LEN: { | |
3427 | uint32_t u32; | |
3428 | error = ofpprop_parse_u32(&payload, &u32); | |
3429 | *total_len = u32; | |
3430 | break; | |
3431 | } | |
3432 | ||
3433 | case NXPINT_BUFFER_ID: | |
3434 | error = ofpprop_parse_u32(&payload, buffer_id); | |
3435 | break; | |
3436 | ||
3437 | case NXPINT_TABLE_ID: | |
3438 | error = ofpprop_parse_u8(&payload, &pin->table_id); | |
3439 | break; | |
3440 | ||
3441 | case NXPINT_COOKIE: | |
3442 | error = ofpprop_parse_be64(&payload, &pin->cookie); | |
3443 | break; | |
3444 | ||
3445 | case NXPINT_REASON: { | |
3446 | uint8_t reason; | |
3447 | error = ofpprop_parse_u8(&payload, &reason); | |
3448 | pin->reason = reason; | |
3449 | break; | |
3450 | } | |
3451 | ||
3452 | case NXPINT_METADATA: | |
87450a4e | 3453 | error = oxm_decode_match(payload.msg, ofpbuf_msgsize(&payload), |
3cddeff0 YHW |
3454 | loose, tun_table, vl_mff_map, |
3455 | &pin->flow_metadata); | |
6409e008 BP |
3456 | break; |
3457 | ||
bdcad671 BP |
3458 | case NXPINT_USERDATA: |
3459 | pin->userdata = payload.msg; | |
3460 | pin->userdata_len = ofpbuf_msgsize(&payload); | |
3461 | break; | |
3462 | ||
77ab5fd2 BP |
3463 | case NXPINT_CONTINUATION: |
3464 | if (continuation) { | |
3465 | error = ofpprop_parse_nested(&payload, continuation); | |
3466 | } | |
3467 | break; | |
3468 | ||
6409e008 | 3469 | default: |
77ab5fd2 | 3470 | error = OFPPROP_UNKNOWN(loose, "NX_PACKET_IN2", type); |
6409e008 BP |
3471 | break; |
3472 | } | |
3473 | if (error) { | |
3474 | return error; | |
3475 | } | |
3476 | } | |
3477 | ||
4adaf182 | 3478 | if (!pin->packet_len) { |
6409e008 BP |
3479 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 lacks packet"); |
3480 | return OFPERR_OFPBRC_BAD_LEN; | |
3481 | } else if (!*total_len) { | |
4adaf182 BP |
3482 | *total_len = pin->packet_len; |
3483 | } else if (*total_len < pin->packet_len) { | |
6409e008 BP |
3484 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 claimed full_len < len"); |
3485 | return OFPERR_OFPBRC_BAD_LEN; | |
3486 | } | |
3487 | ||
3488 | return 0; | |
3489 | } | |
3490 | ||
9bfe9334 | 3491 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
77ab5fd2 BP |
3492 | * 'pin->packet' and 'pin->packet_len' with the part of the packet actually |
3493 | * included in the message. If 'total_lenp' is nonnull, populates | |
3494 | * '*total_lenp' with the original length of the packet (which is larger than | |
3495 | * 'packet->len' if only part of the packet was included). If 'buffer_idp' is | |
3496 | * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it | |
9bfe9334 BP |
3497 | * was not buffered). |
3498 | * | |
77ab5fd2 BP |
3499 | * Populates 'continuation', if nonnull, with the continuation data from the |
3500 | * packet-in (an empty buffer, if 'oh' did not contain continuation data). The | |
3501 | * format of this data is supposed to be opaque to anything other than | |
3502 | * ovs-vswitchd, so that in any other process the only reasonable use of this | |
3503 | * data is to be copied into an NXT_RESUME message via ofputil_encode_resume(). | |
3504 | * | |
3505 | * This function points 'pin->packet' into 'oh', so the caller should not free | |
3506 | * it separately from the original OpenFlow message. This is also true for | |
3507 | * 'pin->userdata' (which could also end up NULL if there is no userdata). | |
3508 | * | |
3cddeff0 YHW |
3509 | * 'vl_mff_map' is an optional parameter that is used to validate the length |
3510 | * of variable length mf_fields in 'match'. If it is not provided, the | |
3511 | * default mf_fields with maximum length will be used. | |
3512 | * | |
9bfe9334 | 3513 | * Returns 0 if successful, otherwise an OpenFlow error code. */ |
f7cc6bd8 | 3514 | enum ofperr |
77ab5fd2 | 3515 | ofputil_decode_packet_in(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3516 | const struct tun_table *tun_table, |
3cddeff0 | 3517 | const struct vl_mff_map *vl_mff_map, |
9bfe9334 | 3518 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3519 | size_t *total_lenp, uint32_t *buffer_idp, |
3520 | struct ofpbuf *continuation) | |
65120a8a | 3521 | { |
77ab5fd2 BP |
3522 | uint32_t buffer_id; |
3523 | size_t total_len; | |
3524 | ||
65120a8a | 3525 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3526 | pin->cookie = OVS_BE64_MAX; |
77ab5fd2 BP |
3527 | if (continuation) { |
3528 | ofpbuf_use_const(continuation, NULL, 0); | |
3529 | } | |
65120a8a | 3530 | |
0a2869d5 BP |
3531 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3532 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3533 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3534 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3535 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3536 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3537 | : NULL); | |
d7892c81 | 3538 | enum ofperr error = oxm_pull_match_loose(&b, false, tun_table, |
8d8ab6c2 | 3539 | &pin->flow_metadata); |
7cfb9651 SH |
3540 | if (error) { |
3541 | return error; | |
3542 | } | |
3543 | ||
3544 | if (!ofpbuf_try_pull(&b, 2)) { | |
3545 | return OFPERR_OFPBRC_BAD_LEN; | |
3546 | } | |
3547 | ||
43948fa5 BP |
3548 | pin->reason = opi->reason; |
3549 | pin->table_id = opi->table_id; | |
77ab5fd2 BP |
3550 | buffer_id = ntohl(opi->buffer_id); |
3551 | total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3552 | if (cookie) { |
3553 | pin->cookie = *cookie; | |
2e1ae200 | 3554 | } |
7cfb9651 | 3555 | |
50dcbd8e | 3556 | pin->packet = b.data; |
4adaf182 | 3557 | pin->packet_len = b.size; |
7cfb9651 | 3558 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3559 | const struct ofp10_packet_in *opi; |
982697a4 | 3560 | |
31a9e63f | 3561 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a | 3562 | |
95022b47 | 3563 | pin->packet = CONST_CAST(uint8_t *, opi->data); |
4adaf182 | 3564 | pin->packet_len = b.size; |
65120a8a | 3565 | |
50dcbd8e | 3566 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3567 | match_set_in_port(&pin->flow_metadata, |
3568 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3569 | pin->reason = opi->reason; |
77ab5fd2 BP |
3570 | buffer_id = ntohl(opi->buffer_id); |
3571 | total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3572 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3573 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3574 | ofp_port_t in_port; |
4d197ebb BP |
3575 | enum ofperr error; |
3576 | ||
3577 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3578 | ||
6fd6ed71 | 3579 | pin->packet = b.data; |
4adaf182 | 3580 | pin->packet_len = b.size; |
4d197ebb | 3581 | |
77ab5fd2 | 3582 | buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3583 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3584 | if (error) { |
3585 | return error; | |
3586 | } | |
50dcbd8e JG |
3587 | match_init_catchall(&pin->flow_metadata); |
3588 | match_set_in_port(&pin->flow_metadata, in_port); | |
77ab5fd2 | 3589 | total_len = ntohs(opi->total_len); |
4d197ebb BP |
3590 | pin->reason = opi->reason; |
3591 | pin->table_id = opi->table_id; | |
982697a4 | 3592 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3593 | const struct nx_packet_in *npi; |
54834960 EJ |
3594 | int error; |
3595 | ||
54834960 | 3596 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e | 3597 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
d7892c81 YHW |
3598 | &pin->flow_metadata, NULL, NULL, false, |
3599 | NULL); | |
54834960 EJ |
3600 | if (error) { |
3601 | return error; | |
3602 | } | |
3603 | ||
3604 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3605 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3606 | } |
3607 | ||
54834960 EJ |
3608 | pin->reason = npi->reason; |
3609 | pin->table_id = npi->table_id; | |
3610 | pin->cookie = npi->cookie; | |
3611 | ||
77ab5fd2 BP |
3612 | buffer_id = ntohl(npi->buffer_id); |
3613 | total_len = ntohs(npi->total_len); | |
7cfb9651 | 3614 | |
50dcbd8e | 3615 | pin->packet = b.data; |
4adaf182 | 3616 | pin->packet_len = b.size; |
77ab5fd2 | 3617 | } else if (raw == OFPRAW_NXT_PACKET_IN2 || raw == OFPRAW_NXT_RESUME) { |
3cddeff0 YHW |
3618 | enum ofperr error = decode_nx_packet_in2(oh, loose, tun_table, |
3619 | vl_mff_map, pin, &total_len, | |
3620 | &buffer_id, continuation); | |
77ab5fd2 BP |
3621 | if (error) { |
3622 | return error; | |
3623 | } | |
65120a8a | 3624 | } else { |
428b2edd | 3625 | OVS_NOT_REACHED(); |
65120a8a EJ |
3626 | } |
3627 | ||
77ab5fd2 BP |
3628 | if (total_lenp) { |
3629 | *total_lenp = total_len; | |
3630 | } | |
3631 | if (buffer_idp) { | |
3632 | *buffer_idp = buffer_id; | |
3633 | } | |
3634 | ||
65120a8a EJ |
3635 | return 0; |
3636 | } | |
3637 | ||
9bfe9334 BP |
3638 | static int |
3639 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3640 | enum ofp_version version) | |
3641 | { | |
3642 | switch (reason) { | |
3643 | case OFPR_NO_MATCH: | |
3644 | case OFPR_ACTION: | |
3645 | case OFPR_INVALID_TTL: | |
3646 | return reason; | |
3647 | ||
3648 | case OFPR_ACTION_SET: | |
3649 | case OFPR_GROUP: | |
3650 | case OFPR_PACKET_OUT: | |
3651 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3652 | ||
3653 | case OFPR_EXPLICIT_MISS: | |
3654 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3655 | ||
3656 | case OFPR_IMPLICIT_MISS: | |
3657 | return OFPR_NO_MATCH; | |
3658 | ||
3659 | case OFPR_N_REASONS: | |
3660 | default: | |
3661 | OVS_NOT_REACHED(); | |
3662 | } | |
3663 | } | |
3664 | ||
77ab5fd2 BP |
3665 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this |
3666 | * function omits it. The caller can add it itself if desired. */ | |
3667 | static void | |
3668 | ofputil_put_packet_in(const struct ofputil_packet_in *pin, | |
c184807c JR |
3669 | enum ofp_version version, size_t include_bytes, |
3670 | struct ofpbuf *msg) | |
77ab5fd2 BP |
3671 | { |
3672 | /* Add packet properties. */ | |
3673 | ofpprop_put(msg, NXPINT_PACKET, pin->packet, include_bytes); | |
3674 | if (include_bytes != pin->packet_len) { | |
3675 | ofpprop_put_u32(msg, NXPINT_FULL_LEN, pin->packet_len); | |
3676 | } | |
77ab5fd2 BP |
3677 | |
3678 | /* Add flow properties. */ | |
3679 | ofpprop_put_u8(msg, NXPINT_TABLE_ID, pin->table_id); | |
3680 | if (pin->cookie != OVS_BE64_MAX) { | |
3681 | ofpprop_put_be64(msg, NXPINT_COOKIE, pin->cookie); | |
3682 | } | |
3683 | ||
3684 | /* Add other properties. */ | |
3685 | ofpprop_put_u8(msg, NXPINT_REASON, | |
3686 | encode_packet_in_reason(pin->reason, version)); | |
3687 | ||
3688 | size_t start = ofpprop_start(msg, NXPINT_METADATA); | |
3689 | oxm_put_raw(msg, &pin->flow_metadata, version); | |
3690 | ofpprop_end(msg, start); | |
3691 | } | |
3692 | ||
3693 | static void | |
3694 | put_actions_property(struct ofpbuf *msg, uint64_t prop_type, | |
3695 | enum ofp_version version, | |
3696 | const struct ofpact *actions, size_t actions_len) | |
3697 | { | |
3698 | if (actions_len) { | |
3699 | size_t start = ofpprop_start_nested(msg, prop_type); | |
3700 | ofpacts_put_openflow_actions(actions, actions_len, msg, version); | |
3701 | ofpprop_end(msg, start); | |
3702 | } | |
3703 | } | |
3704 | ||
3705 | enum nx_continuation_prop_type { | |
3706 | NXCPT_BRIDGE = 0x8000, | |
3707 | NXCPT_STACK, | |
3708 | NXCPT_MIRRORS, | |
3709 | NXCPT_CONNTRACKED, | |
3710 | NXCPT_TABLE_ID, | |
3711 | NXCPT_COOKIE, | |
3712 | NXCPT_ACTIONS, | |
3713 | NXCPT_ACTION_SET, | |
3714 | }; | |
3715 | ||
3716 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this | |
3717 | * function omits it. The caller can add it itself if desired. */ | |
3718 | static void | |
3719 | ofputil_put_packet_in_private(const struct ofputil_packet_in_private *pin, | |
c184807c JR |
3720 | enum ofp_version version, size_t include_bytes, |
3721 | struct ofpbuf *msg) | |
77ab5fd2 | 3722 | { |
c184807c | 3723 | ofputil_put_packet_in(&pin->public, version, include_bytes, msg); |
77ab5fd2 BP |
3724 | |
3725 | size_t continuation_ofs = ofpprop_start_nested(msg, NXPINT_CONTINUATION); | |
3726 | size_t inner_ofs = msg->size; | |
3727 | ||
3728 | if (!uuid_is_zero(&pin->bridge)) { | |
3729 | ofpprop_put_uuid(msg, NXCPT_BRIDGE, &pin->bridge); | |
3730 | } | |
3731 | ||
84cf3c1f JR |
3732 | struct ofpbuf pin_stack; |
3733 | ofpbuf_use_const(&pin_stack, pin->stack, pin->stack_size); | |
77ab5fd2 | 3734 | |
84cf3c1f JR |
3735 | while (pin_stack.size) { |
3736 | uint8_t len; | |
3737 | uint8_t *val = nx_stack_pop(&pin_stack, &len); | |
3738 | ofpprop_put(msg, NXCPT_STACK, val, len); | |
77ab5fd2 BP |
3739 | } |
3740 | ||
3741 | if (pin->mirrors) { | |
3742 | ofpprop_put_u32(msg, NXCPT_MIRRORS, pin->mirrors); | |
3743 | } | |
3744 | ||
3745 | if (pin->conntracked) { | |
3746 | ofpprop_put_flag(msg, NXCPT_CONNTRACKED); | |
3747 | } | |
3748 | ||
3749 | if (pin->actions_len) { | |
3750 | /* Divide 'pin->actions' into groups that begins with an | |
3751 | * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and | |
3752 | * NXCPT_COOKIE property (if either has changed; each is initially | |
3753 | * assumed 0), then a NXCPT_ACTIONS property with the grouped | |
3754 | * actions. | |
3755 | * | |
3756 | * The alternative is to make OFPACT_UNROLL_XLATE public. We can | |
3757 | * always do that later, since this is a private property. */ | |
3758 | const struct ofpact *const end = ofpact_end(pin->actions, | |
3759 | pin->actions_len); | |
3760 | const struct ofpact_unroll_xlate *unroll = NULL; | |
3761 | uint8_t table_id = 0; | |
3762 | ovs_be64 cookie = 0; | |
3763 | ||
3764 | const struct ofpact *a; | |
3765 | for (a = pin->actions; ; a = ofpact_next(a)) { | |
3766 | if (a == end || a->type == OFPACT_UNROLL_XLATE) { | |
3767 | if (unroll) { | |
3768 | if (table_id != unroll->rule_table_id) { | |
3769 | ofpprop_put_u8(msg, NXCPT_TABLE_ID, | |
3770 | unroll->rule_table_id); | |
3771 | table_id = unroll->rule_table_id; | |
3772 | } | |
3773 | if (cookie != unroll->rule_cookie) { | |
3774 | ofpprop_put_be64(msg, NXCPT_COOKIE, | |
3775 | unroll->rule_cookie); | |
3776 | cookie = unroll->rule_cookie; | |
3777 | } | |
3778 | } | |
3779 | ||
3780 | const struct ofpact *start | |
3781 | = unroll ? ofpact_next(&unroll->ofpact) : pin->actions; | |
3782 | put_actions_property(msg, NXCPT_ACTIONS, version, | |
3783 | start, (a - start) * sizeof *a); | |
3784 | ||
3785 | if (a == end) { | |
3786 | break; | |
3787 | } | |
3788 | unroll = ofpact_get_UNROLL_XLATE(a); | |
3789 | } | |
3790 | } | |
3791 | } | |
3792 | ||
3793 | if (pin->action_set_len) { | |
3794 | size_t start = ofpprop_start_nested(msg, NXCPT_ACTION_SET); | |
3795 | ofpacts_put_openflow_actions(pin->action_set, | |
3796 | pin->action_set_len, msg, version); | |
3797 | ofpprop_end(msg, start); | |
3798 | } | |
3799 | ||
3800 | if (msg->size > inner_ofs) { | |
3801 | ofpprop_end(msg, continuation_ofs); | |
3802 | } else { | |
3803 | msg->size = continuation_ofs; | |
3804 | } | |
3805 | } | |
3806 | ||
0f83fea0 | 3807 | static struct ofpbuf * |
c184807c | 3808 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) |
0f83fea0 BP |
3809 | { |
3810 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3811 | struct ofpbuf *msg; |
0f83fea0 | 3812 | |
9bfe9334 | 3813 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
4adaf182 | 3814 | htonl(0), pin->packet_len); |
9bfe9334 | 3815 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); |
4adaf182 | 3816 | opi->total_len = htons(pin->packet_len); |
50dcbd8e | 3817 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 | 3818 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
c184807c | 3819 | opi->buffer_id = htonl(UINT32_MAX); |
0f83fea0 | 3820 | |
9bfe9334 | 3821 | return msg; |
0f83fea0 BP |
3822 | } |
3823 | ||
3824 | static struct ofpbuf * | |
9bfe9334 | 3825 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
c184807c | 3826 | enum ofp_version version) |
0f83fea0 BP |
3827 | { |
3828 | struct nx_packet_in *npi; | |
9bfe9334 | 3829 | struct ofpbuf *msg; |
0f83fea0 BP |
3830 | size_t match_len; |
3831 | ||
0f83fea0 | 3832 | /* The final argument is just an estimate of the space required. */ |
6409e008 | 3833 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, version, |
4adaf182 | 3834 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
9bfe9334 BP |
3835 | ofpbuf_put_zeros(msg, sizeof *npi); |
3836 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3837 | ofpbuf_put_zeros(msg, 2); | |
3838 | ||
3839 | npi = msg->msg; | |
c184807c | 3840 | npi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3841 | npi->total_len = htons(pin->packet_len); |
6409e008 | 3842 | npi->reason = encode_packet_in_reason(pin->reason, version); |
0f83fea0 BP |
3843 | npi->table_id = pin->table_id; |
3844 | npi->cookie = pin->cookie; | |
3845 | npi->match_len = htons(match_len); | |
3846 | ||
9bfe9334 | 3847 | return msg; |
0f83fea0 BP |
3848 | } |
3849 | ||
6409e008 | 3850 | static struct ofpbuf * |
77ab5fd2 | 3851 | ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private *pin, |
c184807c | 3852 | enum ofp_version version, size_t include_bytes) |
6409e008 BP |
3853 | { |
3854 | /* 'extra' is just an estimate of the space required. */ | |
77ab5fd2 BP |
3855 | size_t extra = (pin->public.packet_len |
3856 | + NXM_TYPICAL_LEN /* flow_metadata */ | |
84cf3c1f | 3857 | + pin->stack_size * 4 |
77ab5fd2 BP |
3858 | + pin->actions_len |
3859 | + pin->action_set_len | |
3860 | + 256); /* fudge factor */ | |
6409e008 BP |
3861 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2, version, |
3862 | htonl(0), extra); | |
3863 | ||
c184807c | 3864 | ofputil_put_packet_in_private(pin, version, include_bytes, msg); |
77ab5fd2 BP |
3865 | if (pin->public.userdata_len) { |
3866 | ofpprop_put(msg, NXPINT_USERDATA, pin->public.userdata, | |
3867 | pin->public.userdata_len); | |
bdcad671 BP |
3868 | } |
3869 | ||
6409e008 BP |
3870 | ofpmsg_update_length(msg); |
3871 | return msg; | |
3872 | } | |
3873 | ||
4d197ebb | 3874 | static struct ofpbuf * |
c184807c | 3875 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) |
4d197ebb BP |
3876 | { |
3877 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3878 | struct ofpbuf *msg; |
4d197ebb | 3879 | |
9bfe9334 | 3880 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
4adaf182 | 3881 | htonl(0), pin->packet_len); |
9bfe9334 | 3882 | opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3883 | opi->buffer_id = htonl(UINT32_MAX); |
9bfe9334 BP |
3884 | opi->in_port = ofputil_port_to_ofp11( |
3885 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3886 | opi->in_phy_port = opi->in_port; |
4adaf182 | 3887 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3888 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); |
4d197ebb BP |
3889 | opi->table_id = pin->table_id; |
3890 | ||
9bfe9334 | 3891 | return msg; |
4d197ebb BP |
3892 | } |
3893 | ||
0f83fea0 BP |
3894 | static struct ofpbuf * |
3895 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
c184807c | 3896 | enum ofp_version version) |
0f83fea0 | 3897 | { |
43948fa5 BP |
3898 | enum ofpraw raw = (version >= OFP13_VERSION |
3899 | ? OFPRAW_OFPT13_PACKET_IN | |
3900 | : OFPRAW_OFPT12_PACKET_IN); | |
3901 | struct ofpbuf *msg; | |
0f83fea0 | 3902 | |
0f83fea0 | 3903 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3904 | msg = ofpraw_alloc_xid(raw, version, |
4adaf182 | 3905 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3906 | |
43948fa5 | 3907 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3908 | opi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3909 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3910 | opi->reason = encode_packet_in_reason(pin->reason, version); |
43948fa5 | 3911 | opi->table_id = pin->table_id; |
9bfe9334 | 3912 | |
43948fa5 BP |
3913 | if (version >= OFP13_VERSION) { |
3914 | ovs_be64 cookie = pin->cookie; | |
3915 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3916 | } |
3917 | ||
43948fa5 BP |
3918 | oxm_put_match(msg, &pin->flow_metadata, version); |
3919 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3920 | |
3921 | return msg; | |
0f83fea0 BP |
3922 | } |
3923 | ||
77ab5fd2 BP |
3924 | /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message |
3925 | * for 'protocol', using the packet-in format specified by 'packet_in_format'. | |
9bfe9334 | 3926 | * |
77ab5fd2 BP |
3927 | * This function is really meant only for use by ovs-vswitchd. To any other |
3928 | * code, the "continuation" data, i.e. the data that is in struct | |
3929 | * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed | |
3930 | * to be opaque (and it might change from one OVS version to another). Thus, | |
3931 | * if any other code wants to encode a packet-in, it should use a non-"private" | |
3932 | * version of this function. (Such a version doesn't currently exist because | |
3933 | * only ovs-vswitchd currently wants to encode packet-ins. If you need one, | |
3934 | * write it...) */ | |
ebb57021 | 3935 | struct ofpbuf * |
77ab5fd2 BP |
3936 | ofputil_encode_packet_in_private(const struct ofputil_packet_in_private *pin, |
3937 | enum ofputil_protocol protocol, | |
c184807c | 3938 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3939 | { |
9bfe9334 BP |
3940 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3941 | ||
9bfe9334 | 3942 | struct ofpbuf *msg; |
6409e008 BP |
3943 | switch (packet_in_format) { |
3944 | case NXPIF_STANDARD: | |
3945 | switch (protocol) { | |
3946 | case OFPUTIL_P_OF10_STD: | |
3947 | case OFPUTIL_P_OF10_STD_TID: | |
3948 | case OFPUTIL_P_OF10_NXM: | |
3949 | case OFPUTIL_P_OF10_NXM_TID: | |
c184807c | 3950 | msg = ofputil_encode_ofp10_packet_in(&pin->public); |
6409e008 | 3951 | break; |
2e1ae200 | 3952 | |
6409e008 | 3953 | case OFPUTIL_P_OF11_STD: |
c184807c | 3954 | msg = ofputil_encode_ofp11_packet_in(&pin->public); |
6409e008 BP |
3955 | break; |
3956 | ||
3957 | case OFPUTIL_P_OF12_OXM: | |
3958 | case OFPUTIL_P_OF13_OXM: | |
3959 | case OFPUTIL_P_OF14_OXM: | |
3960 | case OFPUTIL_P_OF15_OXM: | |
b79d45a1 | 3961 | case OFPUTIL_P_OF16_OXM: |
c184807c | 3962 | msg = ofputil_encode_ofp12_packet_in(&pin->public, version); |
6409e008 BP |
3963 | break; |
3964 | ||
3965 | default: | |
3966 | OVS_NOT_REACHED(); | |
3967 | } | |
4d197ebb | 3968 | break; |
d94240ec | 3969 | |
6409e008 | 3970 | case NXPIF_NXT_PACKET_IN: |
c184807c | 3971 | msg = ofputil_encode_nx_packet_in(&pin->public, version); |
0f83fea0 BP |
3972 | break; |
3973 | ||
6409e008 | 3974 | case NXPIF_NXT_PACKET_IN2: |
c184807c JR |
3975 | return ofputil_encode_nx_packet_in2(pin, version, |
3976 | pin->public.packet_len); | |
6409e008 | 3977 | |
0f83fea0 | 3978 | default: |
428b2edd | 3979 | OVS_NOT_REACHED(); |
54834960 | 3980 | } |
54834960 | 3981 | |
c184807c | 3982 | ofpbuf_put(msg, pin->public.packet, pin->public.packet_len); |
9bfe9334 BP |
3983 | ofpmsg_update_length(msg); |
3984 | return msg; | |
ebb57021 BP |
3985 | } |
3986 | ||
5014a89d BP |
3987 | /* Returns a string form of 'reason'. The return value is either a statically |
3988 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3989 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3990 | const char * |
5014a89d BP |
3991 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3992 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3993 | { |
7c1a76a4 BP |
3994 | switch (reason) { |
3995 | case OFPR_NO_MATCH: | |
3996 | return "no_match"; | |
3997 | case OFPR_ACTION: | |
3998 | return "action"; | |
3999 | case OFPR_INVALID_TTL: | |
4000 | return "invalid_ttl"; | |
424467c6 SS |
4001 | case OFPR_ACTION_SET: |
4002 | return "action_set"; | |
4003 | case OFPR_GROUP: | |
4004 | return "group"; | |
4005 | case OFPR_PACKET_OUT: | |
4006 | return "packet_out"; | |
9bfe9334 BP |
4007 | case OFPR_EXPLICIT_MISS: |
4008 | case OFPR_IMPLICIT_MISS: | |
4009 | return ""; | |
7c1a76a4 BP |
4010 | |
4011 | case OFPR_N_REASONS: | |
4012 | default: | |
5014a89d BP |
4013 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
4014 | return reasonbuf; | |
7c1a76a4 BP |
4015 | } |
4016 | } | |
4017 | ||
4018 | bool | |
4019 | ofputil_packet_in_reason_from_string(const char *s, | |
4020 | enum ofp_packet_in_reason *reason) | |
4021 | { | |
4022 | int i; | |
4023 | ||
4024 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
4025 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
4026 | const char *reason_s; | |
4027 | ||
4028 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
4029 | sizeof reasonbuf); | |
4030 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
4031 | *reason = i; |
4032 | return true; | |
4033 | } | |
4034 | } | |
4035 | return false; | |
4036 | } | |
4037 | ||
77ab5fd2 BP |
4038 | /* Returns a newly allocated NXT_RESUME message for 'pin', with the given |
4039 | * 'continuation', for 'protocol'. This message is suitable for resuming the | |
4040 | * pipeline traveral of the packet represented by 'pin', if sent to the switch | |
4041 | * from which 'pin' was received. */ | |
4042 | struct ofpbuf * | |
4043 | ofputil_encode_resume(const struct ofputil_packet_in *pin, | |
4044 | const struct ofpbuf *continuation, | |
4045 | enum ofputil_protocol protocol) | |
4046 | { | |
4047 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
4048 | size_t extra = pin->packet_len + NXM_TYPICAL_LEN + continuation->size; | |
4049 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_RESUME, version, | |
4050 | 0, extra); | |
c184807c | 4051 | ofputil_put_packet_in(pin, version, pin->packet_len, msg); |
77ab5fd2 BP |
4052 | ofpprop_put_nested(msg, NXPINT_CONTINUATION, continuation); |
4053 | ofpmsg_update_length(msg); | |
4054 | return msg; | |
4055 | } | |
4056 | ||
4057 | static enum ofperr | |
84cf3c1f | 4058 | parse_stack_prop(const struct ofpbuf *property, struct ofpbuf *stack) |
77ab5fd2 BP |
4059 | { |
4060 | unsigned int len = ofpbuf_msgsize(property); | |
84cf3c1f | 4061 | if (len > sizeof(union mf_subvalue)) { |
77ab5fd2 BP |
4062 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXCPT_STACK property has bad length %u", |
4063 | len); | |
4064 | return OFPERR_OFPBPC_BAD_LEN; | |
4065 | } | |
84cf3c1f | 4066 | nx_stack_push_bottom(stack, property->msg, len); |
77ab5fd2 BP |
4067 | return 0; |
4068 | } | |
4069 | ||
4070 | static enum ofperr | |
4071 | parse_actions_property(struct ofpbuf *property, enum ofp_version version, | |
4072 | struct ofpbuf *ofpacts) | |
4073 | { | |
4074 | if (!ofpbuf_try_pull(property, ROUND_UP(ofpbuf_headersize(property), 8))) { | |
4075 | VLOG_WARN_RL(&bad_ofmsg_rl, "actions property has bad length %"PRIu32, | |
4076 | property->size); | |
4077 | return OFPERR_OFPBPC_BAD_LEN; | |
4078 | } | |
4079 | ||
4080 | return ofpacts_pull_openflow_actions(property, property->size, | |
5c7c16d8 | 4081 | version, NULL, NULL, ofpacts); |
77ab5fd2 BP |
4082 | } |
4083 | ||
4084 | /* This is like ofputil_decode_packet_in(), except that it decodes the | |
4085 | * continuation data into 'pin'. The format of this data is supposed to be | |
4086 | * opaque to any process other than ovs-vswitchd, so this function should not | |
4087 | * be used outside ovs-vswitchd. | |
4088 | * | |
3cddeff0 YHW |
4089 | * 'vl_mff_map' is an optional parameter that is used to validate the length |
4090 | * of variable length mf_fields in 'match'. If it is not provided, the | |
4091 | * default mf_fields with maximum length will be used. | |
4092 | * | |
77ab5fd2 BP |
4093 | * When successful, 'pin' contains some dynamically allocated data. Call |
4094 | * ofputil_packet_in_private_destroy() to free this data. */ | |
4095 | enum ofperr | |
4096 | ofputil_decode_packet_in_private(const struct ofp_header *oh, bool loose, | |
8d8ab6c2 | 4097 | const struct tun_table *tun_table, |
3cddeff0 | 4098 | const struct vl_mff_map *vl_mff_map, |
77ab5fd2 BP |
4099 | struct ofputil_packet_in_private *pin, |
4100 | size_t *total_len, uint32_t *buffer_id) | |
4101 | { | |
4102 | memset(pin, 0, sizeof *pin); | |
4103 | ||
4104 | struct ofpbuf continuation; | |
4105 | enum ofperr error; | |
3cddeff0 YHW |
4106 | error = ofputil_decode_packet_in(oh, loose, tun_table, vl_mff_map, |
4107 | &pin->public, total_len, buffer_id, | |
4108 | &continuation); | |
77ab5fd2 BP |
4109 | if (error) { |
4110 | return error; | |
4111 | } | |
4112 | ||
4113 | struct ofpbuf actions, action_set; | |
4114 | ofpbuf_init(&actions, 0); | |
4115 | ofpbuf_init(&action_set, 0); | |
4116 | ||
4117 | uint8_t table_id = 0; | |
4118 | ovs_be64 cookie = 0; | |
4119 | ||
84cf3c1f JR |
4120 | struct ofpbuf stack; |
4121 | ofpbuf_init(&stack, 0); | |
77ab5fd2 BP |
4122 | |
4123 | while (continuation.size > 0) { | |
4124 | struct ofpbuf payload; | |
4125 | uint64_t type; | |
4126 | ||
4127 | error = ofpprop_pull(&continuation, &payload, &type); | |
8319a81a JR |
4128 | if (error) { |
4129 | break; | |
4130 | } | |
77ab5fd2 BP |
4131 | |
4132 | switch (type) { | |
4133 | case NXCPT_BRIDGE: | |
4134 | error = ofpprop_parse_uuid(&payload, &pin->bridge); | |
4135 | break; | |
4136 | ||
4137 | case NXCPT_STACK: | |
84cf3c1f | 4138 | error = parse_stack_prop(&payload, &stack); |
77ab5fd2 BP |
4139 | break; |
4140 | ||
4141 | case NXCPT_MIRRORS: | |
4142 | error = ofpprop_parse_u32(&payload, &pin->mirrors); | |
4143 | break; | |
4144 | ||
4145 | case NXCPT_CONNTRACKED: | |
4146 | pin->conntracked = true; | |
4147 | break; | |
4148 | ||
4149 | case NXCPT_TABLE_ID: | |
4150 | error = ofpprop_parse_u8(&payload, &table_id); | |
4151 | break; | |
4152 | ||
4153 | case NXCPT_COOKIE: | |
4154 | error = ofpprop_parse_be64(&payload, &cookie); | |
4155 | break; | |
4156 | ||
4157 | case NXCPT_ACTIONS: { | |
4158 | struct ofpact_unroll_xlate *unroll | |
4159 | = ofpact_put_UNROLL_XLATE(&actions); | |
4160 | unroll->rule_table_id = table_id; | |
4161 | unroll->rule_cookie = cookie; | |
4162 | error = parse_actions_property(&payload, oh->version, &actions); | |
4163 | break; | |
4164 | } | |
4165 | ||
4166 | case NXCPT_ACTION_SET: | |
4167 | error = parse_actions_property(&payload, oh->version, &action_set); | |
4168 | break; | |
4169 | ||
4170 | default: | |
4171 | error = OFPPROP_UNKNOWN(loose, "continuation", type); | |
4172 | break; | |
4173 | } | |
4174 | if (error) { | |
4175 | break; | |
4176 | } | |
4177 | } | |
4178 | ||
4179 | pin->actions_len = actions.size; | |
4180 | pin->actions = ofpbuf_steal_data(&actions); | |
4181 | pin->action_set_len = action_set.size; | |
4182 | pin->action_set = ofpbuf_steal_data(&action_set); | |
84cf3c1f JR |
4183 | pin->stack_size = stack.size; |
4184 | pin->stack = ofpbuf_steal_data(&stack); | |
77ab5fd2 BP |
4185 | |
4186 | if (error) { | |
4187 | ofputil_packet_in_private_destroy(pin); | |
4188 | } | |
4189 | ||
8319a81a | 4190 | return error; |
77ab5fd2 BP |
4191 | } |
4192 | ||
4193 | /* Frees data in 'pin' that is dynamically allocated by | |
4194 | * ofputil_decode_packet_in_private(). | |
4195 | * | |
4196 | * 'pin->public' contains some pointer members that | |
4197 | * ofputil_decode_packet_in_private() doesn't initialize to newly allocated | |
4198 | * data, so this function doesn't free those. */ | |
4199 | void | |
4200 | ofputil_packet_in_private_destroy(struct ofputil_packet_in_private *pin) | |
4201 | { | |
4202 | if (pin) { | |
4203 | free(pin->stack); | |
4204 | free(pin->actions); | |
4205 | free(pin->action_set); | |
4206 | } | |
4207 | } | |
4208 | ||
f25d0cf3 BP |
4209 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
4210 | * 'po'. | |
4211 | * | |
4212 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
4213 | * message's actions. The caller must initialize 'ofpacts' and retains | |
4214 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
4215 | * | |
6dd3c787 JR |
4216 | * 'po->packet' refers to the packet data in 'oh', so the buffer containing |
4217 | * 'oh' must not be destroyed while 'po' is being used. | |
4218 | * | |
f25d0cf3 | 4219 | * Returns 0 if successful, otherwise an OFPERR_* value. */ |
c6a93eb7 BP |
4220 | enum ofperr |
4221 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 4222 | const struct ofp_header *oh, |
89d7927b | 4223 | const struct tun_table *tun_table, |
f25d0cf3 | 4224 | struct ofpbuf *ofpacts) |
c6a93eb7 | 4225 | { |
0a2869d5 BP |
4226 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4227 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4228 | |
9abca1e5 | 4229 | ofpbuf_clear(ofpacts); |
35eb6326 | 4230 | match_init_catchall(&po->flow_metadata); |
577bfa9f YHW |
4231 | if (raw == OFPRAW_OFPT15_PACKET_OUT) { |
4232 | enum ofperr error; | |
4233 | const struct ofp15_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
4234 | ||
4235 | po->buffer_id = ntohl(opo->buffer_id); | |
89d7927b | 4236 | error = oxm_pull_match_loose(&b, true, tun_table, &po->flow_metadata); |
577bfa9f YHW |
4237 | if (error) { |
4238 | return error; | |
4239 | } | |
4240 | ||
4241 | if (!po->flow_metadata.wc.masks.in_port.ofp_port) { | |
4242 | return OFPERR_OFPBRC_BAD_PORT; | |
4243 | } | |
4244 | ||
4245 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), | |
4246 | oh->version, NULL, NULL, | |
4247 | ofpacts); | |
4248 | if (error) { | |
4249 | return error; | |
4250 | } | |
4251 | } else if (raw == OFPRAW_OFPT11_PACKET_OUT) { | |
eb5ee596 | 4252 | enum ofperr error; |
35eb6326 | 4253 | ofp_port_t in_port; |
eb5ee596 SH |
4254 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
4255 | ||
4256 | po->buffer_id = ntohl(opo->buffer_id); | |
35eb6326 | 4257 | error = ofputil_port_from_ofp11(opo->in_port, &in_port); |
eb5ee596 SH |
4258 | if (error) { |
4259 | return error; | |
4260 | } | |
cb1145d1 | 4261 | match_set_packet_type(&po->flow_metadata, htonl(PT_ETH)); |
35eb6326 | 4262 | match_set_in_port(&po->flow_metadata, in_port); |
eb5ee596 | 4263 | |
e3f8f887 | 4264 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
5c7c16d8 YHW |
4265 | oh->version, NULL, NULL, |
4266 | ofpacts); | |
eb5ee596 SH |
4267 | if (error) { |
4268 | return error; | |
4269 | } | |
eb5ee596 | 4270 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 4271 | enum ofperr error; |
31a9e63f | 4272 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
4273 | |
4274 | po->buffer_id = ntohl(opo->buffer_id); | |
cb1145d1 | 4275 | match_set_packet_type(&po->flow_metadata, htonl(PT_ETH)); |
35eb6326 | 4276 | match_set_in_port(&po->flow_metadata, u16_to_ofp(ntohs(opo->in_port))); |
8a6bc7cd | 4277 | |
e3f8f887 | 4278 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
5c7c16d8 YHW |
4279 | oh->version, NULL, NULL, |
4280 | ofpacts); | |
8a6bc7cd SH |
4281 | if (error) { |
4282 | return error; | |
4283 | } | |
4284 | } else { | |
428b2edd | 4285 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
4286 | } |
4287 | ||
35eb6326 YHW |
4288 | ofp_port_t in_port = po->flow_metadata.flow.in_port.ofp_port; |
4289 | if (ofp_to_u16(in_port) >= ofp_to_u16(OFPP_MAX) | |
4290 | && in_port != OFPP_LOCAL | |
4291 | && in_port != OFPP_NONE | |
4292 | && in_port != OFPP_CONTROLLER) { | |
94783c7c | 4293 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx32, |
35eb6326 | 4294 | po->flow_metadata.flow.in_port.ofp_port); |
2e1bfcb6 | 4295 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
4296 | } |
4297 | ||
6fd6ed71 PS |
4298 | po->ofpacts = ofpacts->data; |
4299 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
4300 | |
4301 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
4302 | po->packet = b.data; |
4303 | po->packet_len = b.size; | |
c6a93eb7 BP |
4304 | } else { |
4305 | po->packet = NULL; | |
4306 | po->packet_len = 0; | |
4307 | } | |
4308 | ||
4309 | return 0; | |
4310 | } | |
6c038611 BP |
4311 | \f |
4312 | /* ofputil_phy_port */ | |
4313 | ||
4314 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
4315 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
4316 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4317 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4318 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4319 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4320 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4321 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4322 | ||
4323 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
4324 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
4325 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
4326 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
4327 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
4328 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 4329 | |
9e1fd49b BP |
4330 | static enum netdev_features |
4331 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
4332 | { |
4333 | uint32_t ofp10 = ntohl(ofp10_); | |
4334 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
4335 | } | |
4336 | ||
9e1fd49b BP |
4337 | static ovs_be32 |
4338 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
4339 | { |
4340 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
4341 | } | |
c6a93eb7 | 4342 | |
9e1fd49b BP |
4343 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
4344 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4345 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4346 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4347 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4348 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4349 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4350 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
4351 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
4352 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
4353 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
4354 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
4355 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
4356 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
4357 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
4358 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
4359 | ||
4360 | static enum netdev_features | |
4361 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
4362 | { | |
4363 | return ntohl(ofp11) & 0xffff; | |
4364 | } | |
4365 | ||
4366 | static ovs_be32 | |
4367 | netdev_port_features_to_ofp11(enum netdev_features features) | |
4368 | { | |
4369 | return htonl(features & 0xffff); | |
4370 | } | |
4371 | ||
4372 | static enum ofperr | |
4373 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
4374 | const struct ofp10_phy_port *opp) | |
4375 | { | |
4e022ec0 | 4376 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 4377 | pp->hw_addr = opp->hw_addr; |
f9ac0f03 | 4378 | ovs_strlcpy_arrays(pp->name, opp->name); |
9e1fd49b BP |
4379 | |
4380 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
4381 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
4382 | ||
4383 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
4384 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
4385 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
4386 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
4387 | ||
d02a5f8e BP |
4388 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
4389 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
4390 | |
4391 | return 0; | |
4392 | } | |
4393 | ||
4394 | static enum ofperr | |
4395 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
4396 | const struct ofp11_port *op) | |
4397 | { | |
4398 | enum ofperr error; | |
4399 | ||
9e1fd49b BP |
4400 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
4401 | if (error) { | |
4402 | return error; | |
4403 | } | |
74ff3298 | 4404 | pp->hw_addr = op->hw_addr; |
f9ac0f03 | 4405 | ovs_strlcpy_arrays(pp->name, op->name); |
9e1fd49b BP |
4406 | |
4407 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 4408 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
4409 | |
4410 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
4411 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
4412 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
4413 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
4414 | ||
4415 | pp->curr_speed = ntohl(op->curr_speed); | |
4416 | pp->max_speed = ntohl(op->max_speed); | |
4417 | ||
4418 | return 0; | |
4419 | } | |
4420 | ||
8c3cc785 BP |
4421 | static enum ofperr |
4422 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
4423 | struct ofputil_phy_port *pp) | |
4424 | { | |
6fd6ed71 | 4425 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 4426 | |
6fd6ed71 | 4427 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
4428 | return OFPERR_OFPBPC_BAD_LEN; |
4429 | } | |
4430 | ||
4431 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
4432 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
4433 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
4434 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
4435 | ||
4436 | pp->curr_speed = ntohl(eth->curr_speed); | |
4437 | pp->max_speed = ntohl(eth->max_speed); | |
4438 | ||
4439 | return 0; | |
4440 | } | |
4441 | ||
4442 | static enum ofperr | |
2f2b904f BP |
4443 | ofputil_pull_ofp14_port_properties(const void *props, size_t len, |
4444 | struct ofputil_phy_port *pp) | |
8c3cc785 | 4445 | { |
2f2b904f | 4446 | struct ofpbuf properties = ofpbuf_const_initializer(props, len); |
6fd6ed71 | 4447 | while (properties.size > 0) { |
8c3cc785 BP |
4448 | struct ofpbuf payload; |
4449 | enum ofperr error; | |
34a543e3 | 4450 | uint64_t type; |
8c3cc785 | 4451 | |
c5562271 | 4452 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
4453 | if (error) { |
4454 | return error; | |
4455 | } | |
4456 | ||
4457 | switch (type) { | |
4458 | case OFPPDPT14_ETHERNET: | |
4459 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
4460 | break; | |
4461 | ||
4462 | default: | |
34a543e3 | 4463 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
4464 | break; |
4465 | } | |
4466 | ||
4467 | if (error) { | |
4468 | return error; | |
4469 | } | |
4470 | } | |
4471 | ||
4472 | return 0; | |
4473 | } | |
4474 | ||
2f2b904f BP |
4475 | static enum ofperr |
4476 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4477 | { | |
4478 | const struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op); | |
4479 | if (!op) { | |
4480 | return OFPERR_OFPBRC_BAD_LEN; | |
4481 | } | |
4482 | ||
4483 | size_t len = ntohs(op->length); | |
4484 | if (len < sizeof *op || len - sizeof *op > msg->size) { | |
4485 | return OFPERR_OFPBRC_BAD_LEN; | |
4486 | } | |
4487 | len -= sizeof *op; | |
4488 | ||
4489 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
4490 | if (error) { | |
4491 | return error; | |
4492 | } | |
4493 | pp->hw_addr = op->hw_addr; | |
4494 | ovs_strlcpy_arrays(pp->name, op->name); | |
4495 | ||
4496 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4497 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4498 | ||
4499 | return ofputil_pull_ofp14_port_properties(ofpbuf_pull(msg, len), len, pp); | |
4500 | } | |
4501 | ||
4502 | static enum ofperr | |
4503 | ofputil_pull_ofp16_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4504 | { | |
4505 | const struct ofp16_port *op = ofpbuf_try_pull(msg, sizeof *op); | |
4506 | if (!op) { | |
4507 | return OFPERR_OFPBRC_BAD_LEN; | |
4508 | } | |
4509 | ||
4510 | size_t len = ntohs(op->length); | |
4511 | if (len < sizeof *op || len - sizeof *op > msg->size) { | |
4512 | return OFPERR_OFPBRC_BAD_LEN; | |
4513 | } | |
4514 | len -= sizeof *op; | |
4515 | ||
4516 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
4517 | if (error) { | |
4518 | return error; | |
4519 | } | |
4520 | if (op->hw_addr_type & htons(OFPPHAT16_EUI48)) { | |
4521 | pp->hw_addr = op->hw_addr; | |
4522 | } | |
4523 | if (op->hw_addr_type & htons(OFPPHAT16_EUI64)) { | |
4524 | pp->hw_addr64 = op->hw_addr64; | |
4525 | } | |
4526 | ovs_strlcpy_arrays(pp->name, op->name); | |
4527 | ||
4528 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4529 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4530 | ||
4531 | return ofputil_pull_ofp14_port_properties(ofpbuf_pull(msg, len), len, pp); | |
4532 | } | |
4533 | ||
9e1fd49b BP |
4534 | static void |
4535 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
4536 | struct ofp10_phy_port *opp) | |
4537 | { | |
4538 | memset(opp, 0, sizeof *opp); | |
4539 | ||
4e022ec0 | 4540 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 4541 | opp->hw_addr = pp->hw_addr; |
f9ac0f03 | 4542 | ovs_strlcpy_arrays(opp->name, pp->name); |
9e1fd49b BP |
4543 | |
4544 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
4545 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
4546 | ||
4547 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
4548 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
4549 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
4550 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
4551 | } | |
4552 | ||
4553 | static void | |
4554 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
4555 | struct ofp11_port *op) | |
4556 | { | |
4557 | memset(op, 0, sizeof *op); | |
4558 | ||
4559 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 4560 | op->hw_addr = pp->hw_addr; |
f9ac0f03 | 4561 | ovs_strlcpy_arrays(op->name, pp->name); |
9e1fd49b BP |
4562 | |
4563 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4564 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4565 | ||
4566 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
4567 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4568 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
4569 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
4570 | ||
4571 | op->curr_speed = htonl(pp->curr_speed); | |
4572 | op->max_speed = htonl(pp->max_speed); | |
4573 | } | |
4574 | ||
8c3cc785 | 4575 | static void |
2f2b904f BP |
4576 | ofputil_encode_ofp14_port_ethernet_prop( |
4577 | const struct ofputil_phy_port *pp, | |
4578 | struct ofp14_port_desc_prop_ethernet *eth) | |
4579 | { | |
4580 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
4581 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4582 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
4583 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
4584 | eth->curr_speed = htonl(pp->curr_speed); | |
4585 | eth->max_speed = htonl(pp->max_speed); | |
4586 | } | |
4587 | ||
4588 | static void | |
4589 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
8c3cc785 BP |
4590 | { |
4591 | struct ofp14_port *op; | |
4592 | struct ofp14_port_desc_prop_ethernet *eth; | |
4593 | ||
4594 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4595 | ||
4596 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4597 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4598 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 4599 | op->hw_addr = pp->hw_addr; |
2f2b904f | 4600 | ovs_strlcpy_arrays(op->name, pp->name); |
8c3cc785 BP |
4601 | op->config = htonl(pp->config & OFPPC11_ALL); |
4602 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4603 | ||
303721ee | 4604 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
2f2b904f BP |
4605 | ofputil_encode_ofp14_port_ethernet_prop(pp, eth); |
4606 | } | |
4607 | ||
4608 | static void | |
4609 | ofputil_put_ofp16_port(const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
4610 | { | |
4611 | struct ofp16_port *op; | |
4612 | struct ofp14_port_desc_prop_ethernet *eth; | |
4613 | ||
4614 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4615 | ||
4616 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4617 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4618 | op->length = htons(sizeof *op + sizeof *eth); | |
4619 | if (!eth_addr_is_zero(pp->hw_addr)) { | |
4620 | op->hw_addr_type |= htons(OFPPHAT16_EUI48); | |
4621 | op->hw_addr = pp->hw_addr; | |
4622 | } | |
4623 | if (!eth_addr64_is_zero(pp->hw_addr64)) { | |
4624 | op->hw_addr_type |= htons(OFPPHAT16_EUI64); | |
4625 | op->hw_addr64 = pp->hw_addr64; | |
4626 | } | |
4627 | ovs_strlcpy_arrays(op->name, pp->name); | |
4628 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4629 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4630 | ||
4631 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); | |
4632 | ofputil_encode_ofp14_port_ethernet_prop(pp, eth); | |
8c3cc785 BP |
4633 | } |
4634 | ||
9e1fd49b | 4635 | static void |
2e3fa633 SH |
4636 | ofputil_put_phy_port(enum ofp_version ofp_version, |
4637 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 4638 | { |
2e3fa633 SH |
4639 | switch (ofp_version) { |
4640 | case OFP10_VERSION: { | |
6b0f20ac BP |
4641 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4642 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4643 | break; |
4644 | } | |
4645 | ||
4646 | case OFP11_VERSION: | |
2e1ae200 JR |
4647 | case OFP12_VERSION: |
4648 | case OFP13_VERSION: { | |
6b0f20ac BP |
4649 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4650 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4651 | break; |
4652 | } | |
4653 | ||
c37c0382 | 4654 | case OFP14_VERSION: |
42dccab5 | 4655 | case OFP15_VERSION: |
8c3cc785 | 4656 | ofputil_put_ofp14_port(pp, b); |
c37c0382 | 4657 | break; |
2f2b904f BP |
4658 | case OFP16_VERSION: |
4659 | ofputil_put_ofp16_port(pp, b); | |
4660 | break; | |
c37c0382 | 4661 | |
2e3fa633 | 4662 | default: |
428b2edd | 4663 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4664 | } |
4665 | } | |
2be393ed | 4666 | |
70ae4f93 BP |
4667 | enum ofperr |
4668 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4669 | ofp_port_t *port) | |
4670 | { | |
0a2869d5 BP |
4671 | struct ofpbuf b = ofpbuf_const_initializer(request, |
4672 | ntohs(request->length)); | |
4673 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
70ae4f93 BP |
4674 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { |
4675 | *port = OFPP_ANY; | |
4676 | return 0; | |
4677 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4678 | ovs_be32 *ofp11_port; | |
4679 | ||
4680 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4681 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4682 | } else { | |
4683 | OVS_NOT_REACHED(); | |
4684 | } | |
4685 | } | |
4686 | ||
4687 | struct ofpbuf * | |
4688 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4689 | ofp_port_t port) | |
4690 | { | |
4691 | struct ofpbuf *request; | |
70ae4f93 BP |
4692 | |
4693 | switch (ofp_version) { | |
4694 | case OFP10_VERSION: | |
4695 | case OFP11_VERSION: | |
4696 | case OFP12_VERSION: | |
4697 | case OFP13_VERSION: | |
4698 | case OFP14_VERSION: | |
4699 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4700 | ofp_version, 0); | |
4701 | break; | |
b79d45a1 BP |
4702 | case OFP15_VERSION: |
4703 | case OFP16_VERSION:{ | |
7448d548 | 4704 | struct ofp15_port_desc_request *req; |
70ae4f93 BP |
4705 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4706 | ofp_version, 0); | |
7448d548 MT |
4707 | req = ofpbuf_put_zeros(request, sizeof *req); |
4708 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4709 | break; |
7448d548 | 4710 | } |
70ae4f93 BP |
4711 | default: |
4712 | OVS_NOT_REACHED(); | |
4713 | } | |
4714 | ||
4715 | return request; | |
4716 | } | |
4717 | ||
2be393ed | 4718 | void |
e28ac5cf | 4719 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4720 | struct ovs_list *replies) |
2be393ed | 4721 | { |
417e7e66 | 4722 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 4723 | size_t start_ofs = reply->size; |
c37c0382 | 4724 | |
6b0f20ac BP |
4725 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4726 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4727 | } |
9e1fd49b | 4728 | \f |
ad99e2ed BP |
4729 | /* ofputil_switch_config */ |
4730 | ||
4731 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4732 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4733 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4734 | static bool | |
4735 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4736 | struct ofputil_switch_config *config) | |
4737 | { | |
0a2869d5 | 4738 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
ad99e2ed | 4739 | ofpraw_pull_assert(&b); |
ad99e2ed | 4740 | |
0a2869d5 | 4741 | const struct ofp_switch_config *osc = ofpbuf_pull(&b, sizeof *osc); |
ad99e2ed BP |
4742 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; |
4743 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4744 | ||
4745 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4746 | if (oh->version < OFP13_VERSION) { | |
4747 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4748 | valid_mask |= ttl_bit; | |
4749 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4750 | } else { | |
4751 | config->invalid_ttl_to_controller = -1; | |
4752 | } | |
4753 | ||
4754 | return !(osc->flags & ~valid_mask); | |
4755 | } | |
4756 | ||
4757 | void | |
4758 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4759 | struct ofputil_switch_config *config) | |
4760 | { | |
4761 | ofputil_decode_switch_config(oh, config); | |
4762 | } | |
4763 | ||
4764 | enum ofperr | |
4765 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4766 | struct ofputil_switch_config *config) | |
4767 | { | |
4768 | return (ofputil_decode_switch_config(oh, config) | |
4769 | ? 0 | |
4770 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4771 | } | |
4772 | ||
4773 | static struct ofpbuf * | |
4774 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4775 | struct ofpbuf *b) | |
4776 | { | |
4777 | const struct ofp_header *oh = b->data; | |
4778 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4779 | osc->flags = htons(config->frag); | |
4780 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4781 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4782 | } | |
4783 | osc->miss_send_len = htons(config->miss_send_len); | |
4784 | return b; | |
4785 | } | |
4786 | ||
4787 | struct ofpbuf * | |
4788 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4789 | const struct ofputil_switch_config *config) | |
4790 | { | |
4791 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4792 | request, 0); | |
4793 | return ofputil_put_switch_config(config, b); | |
4794 | } | |
4795 | ||
4796 | struct ofpbuf * | |
4797 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4798 | enum ofp_version version) | |
4799 | { | |
4800 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4801 | return ofputil_put_switch_config(config, b); | |
4802 | } | |
4803 | \f | |
9e1fd49b BP |
4804 | /* ofputil_switch_features */ |
4805 | ||
4806 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4807 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4808 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4809 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4810 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4811 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4812 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4813 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
50b73fe1 JR |
4814 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_BLOCKED == OFPC12_PORT_BLOCKED); |
4815 | BUILD_ASSERT_DECL((int) OFPUTIL_C_BUNDLES == OFPC14_BUNDLES); | |
4816 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_MONITORING == OFPC14_FLOW_MONITORING); | |
9e1fd49b | 4817 | |
60202987 SH |
4818 | static uint32_t |
4819 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4820 | { | |
0746a84f | 4821 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4822 | switch (ofp_version) { |
4823 | case OFP10_VERSION: | |
4824 | case OFP11_VERSION: | |
4825 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4826 | case OFP12_VERSION: | |
2e1ae200 | 4827 | case OFP13_VERSION: |
50b73fe1 | 4828 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
c37c0382 | 4829 | case OFP14_VERSION: |
42dccab5 | 4830 | case OFP15_VERSION: |
b79d45a1 | 4831 | case OFP16_VERSION: |
50b73fe1 JR |
4832 | return OFPC_COMMON | OFPC12_PORT_BLOCKED | OFPC14_BUNDLES |
4833 | | OFPC14_FLOW_MONITORING; | |
60202987 SH |
4834 | default: |
4835 | /* Caller needs to check osf->header.version itself */ | |
4836 | return 0; | |
4837 | } | |
4838 | } | |
4839 | ||
667bb1fb BP |
4840 | /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into |
4841 | * an abstract representation in '*features', readying 'b' to iterate over the | |
4842 | * OpenFlow port structures following 'osf' with later calls to | |
4843 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_* | |
4844 | * value. */ | |
9e1fd49b | 4845 | enum ofperr |
667bb1fb BP |
4846 | ofputil_pull_switch_features(struct ofpbuf *b, |
4847 | struct ofputil_switch_features *features) | |
9e1fd49b | 4848 | { |
667bb1fb BP |
4849 | const struct ofp_header *oh = b->data; |
4850 | enum ofpraw raw = ofpraw_pull_assert(b); | |
4851 | const struct ofp_switch_features *osf = ofpbuf_pull(b, sizeof *osf); | |
9e1fd49b BP |
4852 | features->datapath_id = ntohll(osf->datapath_id); |
4853 | features->n_buffers = ntohl(osf->n_buffers); | |
4854 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4855 | features->auxiliary_id = 0; |
9e1fd49b | 4856 | |
60202987 SH |
4857 | features->capabilities = ntohl(osf->capabilities) & |
4858 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4859 | |
982697a4 | 4860 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4861 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4862 | features->capabilities |= OFPUTIL_C_STP; | |
4863 | } | |
08d1e234 BP |
4864 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4865 | OFP10_VERSION); | |
2e1ae200 JR |
4866 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4867 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4868 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4869 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4870 | } | |
08d1e234 | 4871 | features->ofpacts = 0; |
2e1ae200 JR |
4872 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4873 | features->auxiliary_id = osf->auxiliary_id; | |
4874 | } | |
9e1fd49b BP |
4875 | } else { |
4876 | return OFPERR_OFPBRC_BAD_VERSION; | |
4877 | } | |
4878 | ||
4879 | return 0; | |
4880 | } | |
4881 | ||
fca6d553 BP |
4882 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4883 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4884 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4885 | * | |
4886 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4887 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4888 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4889 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4890 | * message. | |
4891 | * | |
4892 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4893 | * stats request to get the ports. */ | |
347b7ac4 | 4894 | bool |
fca6d553 | 4895 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4896 | { |
6fd6ed71 | 4897 | struct ofp_header *oh = b->data; |
13e1aff8 | 4898 | size_t phy_port_size; |
347b7ac4 | 4899 | |
fca6d553 | 4900 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4901 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4902 | return false; |
13e1aff8 BP |
4903 | } |
4904 | ||
4905 | phy_port_size = (oh->version == OFP10_VERSION | |
4906 | ? sizeof(struct ofp10_phy_port) | |
4907 | : sizeof(struct ofp11_port)); | |
4908 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4909 | /* There's room for additional ports in the feature reply. | |
4910 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4911 | return true; |
4912 | } | |
13e1aff8 BP |
4913 | |
4914 | /* The feature reply has no room for more ports. Probably the list is | |
4915 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4916 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4917 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4918 | ofpmsg_update_length(b); |
4919 | return false; | |
347b7ac4 JP |
4920 | } |
4921 | ||
9e1fd49b BP |
4922 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4923 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4924 | * information to the buffer with subsequent calls to | |
4925 | * ofputil_put_switch_features_port(). */ | |
4926 | struct ofpbuf * | |
4927 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4928 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4929 | { | |
4930 | struct ofp_switch_features *osf; | |
4931 | struct ofpbuf *b; | |
2e3fa633 SH |
4932 | enum ofp_version version; |
4933 | enum ofpraw raw; | |
982697a4 BP |
4934 | |
4935 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4936 | switch (version) { |
4937 | case OFP10_VERSION: | |
4938 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4939 | break; | |
4940 | case OFP11_VERSION: | |
4941 | case OFP12_VERSION: | |
4942 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4943 | break; | |
2e1ae200 | 4944 | case OFP13_VERSION: |
c37c0382 | 4945 | case OFP14_VERSION: |
42dccab5 | 4946 | case OFP15_VERSION: |
b79d45a1 | 4947 | case OFP16_VERSION: |
2e1ae200 JR |
4948 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4949 | break; | |
2e3fa633 | 4950 | default: |
428b2edd | 4951 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4952 | } |
4953 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4954 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4955 | osf->datapath_id = htonll(features->datapath_id); |
4956 | osf->n_buffers = htonl(features->n_buffers); | |
4957 | osf->n_tables = features->n_tables; | |
4958 | ||
60202987 SH |
4959 | osf->capabilities = htonl(features->capabilities & |
4960 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4961 | switch (version) { |
4962 | case OFP10_VERSION: | |
9e1fd49b BP |
4963 | if (features->capabilities & OFPUTIL_C_STP) { |
4964 | osf->capabilities |= htonl(OFPC10_STP); | |
4965 | } | |
08d1e234 BP |
4966 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4967 | OFP10_VERSION); | |
2e3fa633 | 4968 | break; |
2e1ae200 | 4969 | case OFP13_VERSION: |
c37c0382 | 4970 | case OFP14_VERSION: |
42dccab5 | 4971 | case OFP15_VERSION: |
b79d45a1 | 4972 | case OFP16_VERSION: |
2e1ae200 JR |
4973 | osf->auxiliary_id = features->auxiliary_id; |
4974 | /* fall through */ | |
2e3fa633 SH |
4975 | case OFP11_VERSION: |
4976 | case OFP12_VERSION: | |
9e1fd49b BP |
4977 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4978 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4979 | } | |
2e3fa633 SH |
4980 | break; |
4981 | default: | |
428b2edd | 4982 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4983 | } |
4984 | ||
4985 | return b; | |
4986 | } | |
4987 | ||
4988 | /* Encodes 'pp' into the format required by the switch_features message already | |
4989 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4990 | * and appends the encoded version to 'b'. */ | |
4991 | void | |
4992 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4993 | struct ofpbuf *b) | |
4994 | { | |
6fd6ed71 | 4995 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4996 | |
e0c91c0c | 4997 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4998 | /* Try adding a port description to the message, but drop it again if |
4999 | * the buffer overflows. (This possibility for overflow is why | |
5000 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 5001 | size_t start_ofs = b->size; |
e0c91c0c | 5002 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
5003 | if (b->size > UINT16_MAX) { |
5004 | b->size = start_ofs; | |
6b0f20ac | 5005 | } |
e0c91c0c | 5006 | } |
9e1fd49b BP |
5007 | } |
5008 | \f | |
5009 | /* ofputil_port_status */ | |
5010 | ||
5011 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
5012 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5013 | enum ofperr | |
982697a4 | 5014 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
5015 | struct ofputil_port_status *ps) |
5016 | { | |
0a2869d5 | 5017 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
982697a4 | 5018 | ofpraw_pull_assert(&b); |
982697a4 | 5019 | |
0a2869d5 | 5020 | const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops); |
9e1fd49b BP |
5021 | if (ops->reason != OFPPR_ADD && |
5022 | ops->reason != OFPPR_DELETE && | |
5023 | ops->reason != OFPPR_MODIFY) { | |
5024 | return OFPERR_NXBRC_BAD_REASON; | |
5025 | } | |
5026 | ps->reason = ops->reason; | |
5027 | ||
0a2869d5 | 5028 | int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 5029 | ovs_assert(retval != EOF); |
9e1fd49b BP |
5030 | return retval; |
5031 | } | |
5032 | ||
5033 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
5034 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
5035 | * a buffer owned by the caller. */ | |
5036 | struct ofpbuf * | |
5037 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
5038 | enum ofputil_protocol protocol) | |
5039 | { | |
5040 | struct ofp_port_status *ops; | |
5041 | struct ofpbuf *b; | |
2e3fa633 SH |
5042 | enum ofp_version version; |
5043 | enum ofpraw raw; | |
982697a4 BP |
5044 | |
5045 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
5046 | switch (version) { |
5047 | case OFP10_VERSION: | |
5048 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
5049 | break; | |
5050 | ||
5051 | case OFP11_VERSION: | |
5052 | case OFP12_VERSION: | |
2e1ae200 | 5053 | case OFP13_VERSION: |
2e3fa633 SH |
5054 | raw = OFPRAW_OFPT11_PORT_STATUS; |
5055 | break; | |
5056 | ||
8c3cc785 | 5057 | case OFP14_VERSION: |
42dccab5 | 5058 | case OFP15_VERSION: |
8c3cc785 BP |
5059 | raw = OFPRAW_OFPT14_PORT_STATUS; |
5060 | break; | |
5061 | ||
2f2b904f BP |
5062 | case OFP16_VERSION: |
5063 | raw = OFPRAW_OFPT16_PORT_STATUS; | |
5064 | break; | |
5065 | ||
2e3fa633 | 5066 | default: |
428b2edd | 5067 | OVS_NOT_REACHED(); |
2e3fa633 SH |
5068 | } |
5069 | ||
5070 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 5071 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 5072 | ops->reason = ps->reason; |
982697a4 BP |
5073 | ofputil_put_phy_port(version, &ps->desc, b); |
5074 | ofpmsg_update_length(b); | |
9e1fd49b BP |
5075 | return b; |
5076 | } | |
918f2b82 | 5077 | |
9e1fd49b BP |
5078 | /* ofputil_port_mod */ |
5079 | ||
18cc69d9 BP |
5080 | static enum ofperr |
5081 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
5082 | struct ofputil_port_mod *pm) | |
5083 | { | |
b611d3ac BP |
5084 | ovs_be32 advertise; |
5085 | enum ofperr error; | |
18cc69d9 | 5086 | |
b611d3ac BP |
5087 | error = ofpprop_parse_be32(property, &advertise); |
5088 | if (!error) { | |
5089 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 5090 | } |
b611d3ac | 5091 | return error; |
18cc69d9 BP |
5092 | } |
5093 | ||
2f2b904f BP |
5094 | static enum ofperr |
5095 | ofputil_decode_ofp10_port_mod(const struct ofp10_port_mod *opm, | |
5096 | struct ofputil_port_mod *pm) | |
5097 | { | |
5098 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); | |
5099 | pm->hw_addr = opm->hw_addr; | |
5100 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
5101 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
5102 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
5103 | return 0; | |
5104 | } | |
5105 | ||
5106 | static enum ofperr | |
5107 | ofputil_decode_ofp11_port_mod(const struct ofp11_port_mod *opm, | |
5108 | struct ofputil_port_mod *pm) | |
9e1fd49b | 5109 | { |
2f2b904f | 5110 | enum ofperr error; |
9e1fd49b | 5111 | |
2f2b904f BP |
5112 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
5113 | if (error) { | |
5114 | return error; | |
5115 | } | |
5116 | ||
5117 | pm->hw_addr = opm->hw_addr; | |
5118 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5119 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
5120 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
5121 | ||
5122 | return 0; | |
5123 | } | |
5124 | ||
5125 | static enum ofperr | |
5126 | ofputil_decode_ofp14_port_mod_properties(struct ofpbuf *b, bool loose, | |
5127 | struct ofputil_port_mod *pm) | |
5128 | { | |
5129 | while (b->size > 0) { | |
5130 | struct ofpbuf property; | |
9e1fd49b | 5131 | enum ofperr error; |
2f2b904f | 5132 | uint64_t type; |
9e1fd49b | 5133 | |
2f2b904f | 5134 | error = ofpprop_pull(b, &property, &type); |
9e1fd49b BP |
5135 | if (error) { |
5136 | return error; | |
5137 | } | |
5138 | ||
2f2b904f BP |
5139 | switch (type) { |
5140 | case OFPPMPT14_ETHERNET: | |
5141 | error = parse_port_mod_ethernet_property(&property, pm); | |
5142 | break; | |
18cc69d9 | 5143 | |
2f2b904f BP |
5144 | default: |
5145 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); | |
5146 | break; | |
5147 | } | |
18cc69d9 | 5148 | |
18cc69d9 BP |
5149 | if (error) { |
5150 | return error; | |
5151 | } | |
2f2b904f BP |
5152 | } |
5153 | return 0; | |
5154 | } | |
18cc69d9 | 5155 | |
2f2b904f BP |
5156 | static enum ofperr |
5157 | ofputil_decode_ofp14_port_mod(struct ofpbuf *b, bool loose, | |
5158 | struct ofputil_port_mod *pm) | |
5159 | { | |
5160 | const struct ofp14_port_mod *opm = ofpbuf_pull(b, sizeof *opm); | |
5161 | enum ofperr error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
5162 | if (error) { | |
5163 | return error; | |
5164 | } | |
18cc69d9 | 5165 | |
2f2b904f BP |
5166 | pm->hw_addr = opm->hw_addr; |
5167 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5168 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
18cc69d9 | 5169 | |
2f2b904f BP |
5170 | return ofputil_decode_ofp14_port_mod_properties(b, loose, pm); |
5171 | } | |
18cc69d9 | 5172 | |
2f2b904f BP |
5173 | static enum ofperr |
5174 | ofputil_decode_ofp16_port_mod(struct ofpbuf *b, bool loose, | |
5175 | struct ofputil_port_mod *pm) | |
5176 | { | |
5177 | const struct ofp16_port_mod *opm = ofpbuf_pull(b, sizeof *opm); | |
5178 | enum ofperr error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
5179 | if (error) { | |
5180 | return error; | |
5181 | } | |
18cc69d9 | 5182 | |
2f2b904f BP |
5183 | if (opm->hw_addr_type & htons(OFPPHAT16_EUI48)) { |
5184 | pm->hw_addr = opm->hw_addr; | |
5185 | } | |
5186 | if (opm->hw_addr_type & htons(OFPPHAT16_EUI64)) { | |
5187 | pm->hw_addr64 = opm->hw_addr64; | |
5188 | } | |
5189 | pm->hw_addr = opm->hw_addr; | |
5190 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5191 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
18cc69d9 | 5192 | |
2f2b904f BP |
5193 | return ofputil_decode_ofp14_port_mod_properties(b, loose, pm); |
5194 | } | |
5195 | ||
5196 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in | |
5197 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5198 | enum ofperr | |
5199 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
5200 | struct ofputil_port_mod *pm, bool loose) | |
5201 | { | |
5202 | memset(pm, 0, sizeof *pm); | |
5203 | ||
5204 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
5205 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
d7135018 BP |
5206 | |
5207 | enum ofperr error; | |
2f2b904f | 5208 | if (raw == OFPRAW_OFPT10_PORT_MOD) { |
d7135018 | 5209 | error = ofputil_decode_ofp10_port_mod(b.data, pm); |
2f2b904f | 5210 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
d7135018 | 5211 | error = ofputil_decode_ofp11_port_mod(b.data, pm); |
2f2b904f | 5212 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
d7135018 | 5213 | error = ofputil_decode_ofp14_port_mod(&b, loose, pm); |
2f2b904f | 5214 | } else if (raw == OFPRAW_OFPT16_PORT_MOD) { |
d7135018 | 5215 | error = ofputil_decode_ofp16_port_mod(&b, loose, pm); |
9e1fd49b | 5216 | } else { |
d7135018 | 5217 | error = OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
5218 | } |
5219 | ||
5220 | pm->config &= pm->mask; | |
d7135018 | 5221 | return error; |
9e1fd49b BP |
5222 | } |
5223 | ||
5224 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
5225 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
5226 | * owned by the caller. */ | |
5227 | struct ofpbuf * | |
5228 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
5229 | enum ofputil_protocol protocol) | |
5230 | { | |
2e3fa633 | 5231 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
5232 | struct ofpbuf *b; |
5233 | ||
2e3fa633 SH |
5234 | switch (ofp_version) { |
5235 | case OFP10_VERSION: { | |
9e1fd49b BP |
5236 | struct ofp10_port_mod *opm; |
5237 | ||
982697a4 BP |
5238 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
5239 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 5240 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 5241 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5242 | opm->config = htonl(pm->config & OFPPC10_ALL); |
5243 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
5244 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
5245 | break; |
5246 | } | |
5247 | ||
5fe7c919 | 5248 | case OFP11_VERSION: |
2e1ae200 JR |
5249 | case OFP12_VERSION: |
5250 | case OFP13_VERSION: { | |
9e1fd49b BP |
5251 | struct ofp11_port_mod *opm; |
5252 | ||
982697a4 BP |
5253 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
5254 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 5255 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 5256 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5257 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5258 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5259 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
5260 | break; |
5261 | } | |
42dccab5 | 5262 | case OFP14_VERSION: |
2f2b904f | 5263 | case OFP15_VERSION: { |
18cc69d9 BP |
5264 | struct ofp14_port_mod *opm; |
5265 | ||
b611d3ac | 5266 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
5267 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
5268 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 5269 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
5270 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5271 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5272 | ||
5273 | if (pm->advertise) { | |
b611d3ac BP |
5274 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
5275 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 5276 | } |
c37c0382 | 5277 | break; |
18cc69d9 | 5278 | } |
2f2b904f BP |
5279 | case OFP16_VERSION: { |
5280 | struct ofp16_port_mod *opm; | |
5281 | ||
5282 | b = ofpraw_alloc(OFPRAW_OFPT16_PORT_MOD, ofp_version, 0); | |
5283 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
5284 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
5285 | if (!eth_addr_is_zero(pm->hw_addr)) { | |
5286 | opm->hw_addr_type |= htons(OFPPHAT16_EUI48); | |
5287 | opm->hw_addr = pm->hw_addr; | |
5288 | } | |
5289 | if (!eth_addr64_is_zero(pm->hw_addr64)) { | |
5290 | opm->hw_addr_type |= htons(OFPPHAT16_EUI64); | |
5291 | opm->hw_addr64 = pm->hw_addr64; | |
5292 | } | |
5293 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
5294 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5295 | ||
5296 | if (pm->advertise) { | |
5297 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, | |
5298 | netdev_port_features_to_ofp11(pm->advertise)); | |
5299 | } | |
5300 | break; | |
5301 | } | |
918f2b82 | 5302 | default: |
428b2edd | 5303 | OVS_NOT_REACHED(); |
918f2b82 AZ |
5304 | } |
5305 | ||
5306 | return b; | |
5307 | } | |
72b25867 BP |
5308 | \f |
5309 | /* Table features. */ | |
918f2b82 | 5310 | |
5deff5aa | 5311 | static enum ofperr |
9a4eddbb | 5312 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 5313 | uint64_t *typep) |
5deff5aa | 5314 | { |
9a4eddbb | 5315 | enum ofperr error; |
5deff5aa | 5316 | |
c5562271 | 5317 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 5318 | if (payload && !error) { |
b611d3ac | 5319 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 5320 | } |
9a4eddbb | 5321 | return error; |
5deff5aa AW |
5322 | } |
5323 | ||
5324 | static enum ofperr | |
08d1e234 BP |
5325 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
5326 | uint64_t *ofpacts) | |
5deff5aa | 5327 | { |
08d1e234 | 5328 | uint32_t types = 0; |
5deff5aa | 5329 | |
6fd6ed71 | 5330 | while (payload->size > 0) { |
08d1e234 | 5331 | enum ofperr error; |
34a543e3 | 5332 | uint64_t type; |
08d1e234 | 5333 | |
34a543e3 | 5334 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
5335 | if (error) { |
5336 | return error; | |
5337 | } | |
08d1e234 BP |
5338 | if (type < CHAR_BIT * sizeof types) { |
5339 | types |= 1u << type; | |
5deff5aa AW |
5340 | } |
5341 | } | |
08d1e234 BP |
5342 | |
5343 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
5344 | return 0; |
5345 | } | |
5346 | ||
5347 | static enum ofperr | |
5348 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
5349 | { | |
5350 | *insts = 0; | |
6fd6ed71 | 5351 | while (payload->size > 0) { |
5deff5aa AW |
5352 | enum ovs_instruction_type inst; |
5353 | enum ofperr error; | |
34a543e3 | 5354 | uint64_t ofpit; |
5deff5aa | 5355 | |
72b25867 BP |
5356 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
5357 | * It seems clear that they aren't padded to 8 bytes, though, because | |
5358 | * both standards say that "non-experimenter instructions are 4 bytes" | |
5359 | * and do not mention any padding before the first instruction ID. | |
5360 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
5361 | * aligned on an odd 4-byte boundary.) | |
5362 | * | |
5363 | * Anyway, we just assume they're all glommed together on byte | |
5364 | * boundaries. */ | |
34a543e3 | 5365 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
5366 | if (error) { |
5367 | return error; | |
5368 | } | |
5369 | ||
5370 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
5371 | if (!error) { | |
5372 | *insts |= 1u << inst; | |
5373 | } else if (!loose) { | |
5374 | return error; | |
5375 | } | |
5376 | } | |
5377 | return 0; | |
5378 | } | |
5379 | ||
5380 | static enum ofperr | |
5381 | parse_table_features_next_table(struct ofpbuf *payload, | |
5382 | unsigned long int *next_tables) | |
5383 | { | |
5384 | size_t i; | |
5385 | ||
5386 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
5387 | for (i = 0; i < payload->size; i++) { |
5388 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 5389 | if (id >= 255) { |
9a4eddbb | 5390 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
5391 | } |
5392 | bitmap_set1(next_tables, id); | |
5393 | } | |
5394 | return 0; | |
5395 | } | |
5396 | ||
5deff5aa AW |
5397 | static enum ofperr |
5398 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 5399 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 5400 | { |
abadfcb0 BP |
5401 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
5402 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 5403 | |
6fd6ed71 | 5404 | while (payload->size > 0) { |
5deff5aa AW |
5405 | const struct mf_field *field; |
5406 | enum ofperr error; | |
5407 | bool hasmask; | |
5408 | ||
04f48a68 | 5409 | error = nx_pull_header(payload, NULL, &field, &hasmask); |
5deff5aa | 5410 | if (!error) { |
abadfcb0 | 5411 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
5412 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
5413 | return error; | |
5414 | } | |
5415 | } | |
5416 | if (exactp) { | |
5417 | *exactp = exact; | |
abadfcb0 | 5418 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
5419 | return OFPERR_OFPBMC_BAD_MASK; |
5420 | } | |
5421 | if (maskedp) { | |
5422 | *maskedp = masked; | |
abadfcb0 | 5423 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
5424 | return OFPERR_OFPBMC_BAD_MASK; |
5425 | } | |
5426 | return 0; | |
5427 | } | |
5428 | ||
5429 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
5430 | * ofputil_table_features in 'tf'. | |
5431 | * | |
5432 | * If 'loose' is true, this function ignores properties and values that it does | |
5433 | * not understand, as a controller would want to do when interpreting | |
5434 | * capabilities provided by a switch. If 'loose' is false, this function | |
5435 | * treats unknown properties and values as an error, as a switch would want to | |
5436 | * do when interpreting a configuration request made by a controller. | |
5437 | * | |
5438 | * A single OpenFlow message can specify features for multiple tables. Calling | |
5439 | * this function multiple times for a single 'msg' iterates through the tables | |
5440 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
5441 | * and not modify them between calls. | |
5442 | * | |
5443 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
5444 | * a positive "enum ofperr" value. */ | |
5445 | int | |
5446 | ofputil_decode_table_features(struct ofpbuf *msg, | |
5447 | struct ofputil_table_features *tf, bool loose) | |
5448 | { | |
3c1bb396 BP |
5449 | memset(tf, 0, sizeof *tf); |
5450 | ||
6fd6ed71 | 5451 | if (!msg->header) { |
5deff5aa AW |
5452 | ofpraw_pull_assert(msg); |
5453 | } | |
5454 | ||
6fd6ed71 | 5455 | if (!msg->size) { |
5deff5aa AW |
5456 | return EOF; |
5457 | } | |
5458 | ||
0a2869d5 BP |
5459 | const struct ofp_header *oh = msg->header; |
5460 | struct ofp13_table_features *otf = msg->data; | |
6fd6ed71 | 5461 | if (msg->size < sizeof *otf) { |
9a4eddbb | 5462 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
5463 | } |
5464 | ||
0a2869d5 | 5465 | unsigned int len = ntohs(otf->length); |
6fd6ed71 | 5466 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 5467 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 5468 | } |
5deff5aa AW |
5469 | |
5470 | tf->table_id = otf->table_id; | |
5471 | if (tf->table_id == OFPTT_ALL) { | |
5472 | return OFPERR_OFPTFFC_BAD_TABLE; | |
5473 | } | |
5474 | ||
f9ac0f03 | 5475 | ovs_strlcpy_arrays(tf->name, otf->name); |
5deff5aa AW |
5476 | tf->metadata_match = otf->metadata_match; |
5477 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
5478 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
5479 | if (oh->version >= OFP14_VERSION) { | |
5480 | uint32_t caps = ntohl(otf->capabilities); | |
5481 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
5482 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
5483 | } else { | |
5484 | tf->supports_eviction = -1; | |
5485 | tf->supports_vacancy_events = -1; | |
5486 | } | |
5deff5aa AW |
5487 | tf->max_entries = ntohl(otf->max_entries); |
5488 | ||
0a2869d5 BP |
5489 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
5490 | len); | |
5491 | ofpbuf_pull(&properties, sizeof *otf); | |
6fd6ed71 | 5492 | while (properties.size > 0) { |
5deff5aa AW |
5493 | struct ofpbuf payload; |
5494 | enum ofperr error; | |
34a543e3 | 5495 | uint64_t type; |
5deff5aa | 5496 | |
ae665de5 | 5497 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
5498 | if (error) { |
5499 | return error; | |
5500 | } | |
5501 | ||
5502 | switch ((enum ofp13_table_feature_prop_type) type) { | |
5503 | case OFPTFPT13_INSTRUCTIONS: | |
5504 | error = parse_instruction_ids(&payload, loose, | |
5505 | &tf->nonmiss.instructions); | |
5506 | break; | |
5507 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
5508 | error = parse_instruction_ids(&payload, loose, | |
5509 | &tf->miss.instructions); | |
5510 | break; | |
5511 | ||
5512 | case OFPTFPT13_NEXT_TABLES: | |
5513 | error = parse_table_features_next_table(&payload, | |
5514 | tf->nonmiss.next); | |
5515 | break; | |
5516 | case OFPTFPT13_NEXT_TABLES_MISS: | |
5517 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
5518 | break; | |
5519 | ||
5520 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
5521 | error = parse_action_bitmap(&payload, oh->version, |
5522 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
5523 | break; |
5524 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
5525 | error = parse_action_bitmap(&payload, oh->version, |
5526 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
5527 | break; |
5528 | ||
5529 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
5530 | error = parse_action_bitmap(&payload, oh->version, |
5531 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
5532 | break; |
5533 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
5534 | error = parse_action_bitmap(&payload, oh->version, |
5535 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
5536 | break; |
5537 | ||
5538 | case OFPTFPT13_MATCH: | |
5539 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
5540 | break; | |
5541 | case OFPTFPT13_WILDCARDS: | |
5542 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
5543 | break; | |
5544 | ||
5545 | case OFPTFPT13_WRITE_SETFIELD: | |
5546 | error = parse_oxms(&payload, loose, | |
5547 | &tf->nonmiss.write.set_fields, NULL); | |
5548 | break; | |
5549 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
5550 | error = parse_oxms(&payload, loose, | |
5551 | &tf->miss.write.set_fields, NULL); | |
5552 | break; | |
5553 | case OFPTFPT13_APPLY_SETFIELD: | |
5554 | error = parse_oxms(&payload, loose, | |
5555 | &tf->nonmiss.apply.set_fields, NULL); | |
5556 | break; | |
5557 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
5558 | error = parse_oxms(&payload, loose, | |
5559 | &tf->miss.apply.set_fields, NULL); | |
5560 | break; | |
5561 | ||
5562 | case OFPTFPT13_EXPERIMENTER: | |
5563 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 5564 | default: |
34a543e3 | 5565 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
5566 | break; |
5567 | } | |
5568 | if (error) { | |
5569 | return error; | |
5570 | } | |
5571 | } | |
5572 | ||
5573 | /* Fix inconsistencies: | |
5574 | * | |
e7227821 BP |
5575 | * - Turn on 'match' bits that are set in 'mask', because maskable |
5576 | * fields are matchable. | |
5deff5aa AW |
5577 | * |
5578 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
5579 | * that is arbitrarily maskable can be wildcarded entirely. |
5580 | * | |
5581 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
5582 | * must be matchable for it to be meaningfully wildcarded. */ | |
5583 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 5584 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 5585 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
5586 | |
5587 | return 0; | |
5588 | } | |
5589 | ||
5590 | /* Encodes and returns a request to obtain the table features of a switch. | |
5591 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5592 | struct ofpbuf * | |
5593 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
5594 | { | |
5595 | struct ofpbuf *request = NULL; | |
5596 | ||
5597 | switch (ofp_version) { | |
5598 | case OFP10_VERSION: | |
5599 | case OFP11_VERSION: | |
5600 | case OFP12_VERSION: | |
5601 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
5602 | "(\'-O OpenFlow13\')"); | |
5603 | case OFP13_VERSION: | |
5604 | case OFP14_VERSION: | |
42dccab5 | 5605 | case OFP15_VERSION: |
b79d45a1 | 5606 | case OFP16_VERSION: |
5deff5aa AW |
5607 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
5608 | ofp_version, 0); | |
5609 | break; | |
5610 | default: | |
5611 | OVS_NOT_REACHED(); | |
5612 | } | |
5613 | ||
5614 | return request; | |
5615 | } | |
5616 | ||
3c4e10fb BP |
5617 | static void |
5618 | put_fields_property(struct ofpbuf *reply, | |
5619 | const struct mf_bitmap *fields, | |
5620 | const struct mf_bitmap *masks, | |
5621 | enum ofp13_table_feature_prop_type property, | |
5622 | enum ofp_version version) | |
5623 | { | |
5624 | size_t start_ofs; | |
5625 | int field; | |
5626 | ||
c5562271 | 5627 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 5628 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
5629 | nx_put_header(reply, field, version, |
5630 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 5631 | } |
c5562271 | 5632 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5633 | } |
5634 | ||
5635 | static void | |
5636 | put_table_action_features(struct ofpbuf *reply, | |
5637 | const struct ofputil_table_action_features *taf, | |
5638 | enum ofp13_table_feature_prop_type actions_type, | |
5639 | enum ofp13_table_feature_prop_type set_fields_type, | |
5640 | int miss_offset, enum ofp_version version) | |
5641 | { | |
c5562271 BP |
5642 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
5643 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
5644 | version))); | |
3c4e10fb BP |
5645 | put_fields_property(reply, &taf->set_fields, NULL, |
5646 | set_fields_type + miss_offset, version); | |
5647 | } | |
5648 | ||
5649 | static void | |
5650 | put_table_instruction_features( | |
5651 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
5652 | int miss_offset, enum ofp_version version) | |
5653 | { | |
5654 | size_t start_ofs; | |
5655 | uint8_t table_id; | |
5656 | ||
c5562271 BP |
5657 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
5658 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
5659 | version))); | |
3c4e10fb | 5660 | |
c5562271 | 5661 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
5662 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
5663 | ofpbuf_put(reply, &table_id, 1); | |
5664 | } | |
c5562271 | 5665 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5666 | |
5667 | put_table_action_features(reply, &tif->write, | |
5668 | OFPTFPT13_WRITE_ACTIONS, | |
5669 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
5670 | put_table_action_features(reply, &tif->apply, | |
5671 | OFPTFPT13_APPLY_ACTIONS, | |
5672 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
5673 | } | |
5674 | ||
5675 | void | |
5676 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 5677 | struct ovs_list *replies) |
3c4e10fb | 5678 | { |
417e7e66 | 5679 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
3c4e10fb | 5680 | enum ofp_version version = ofpmp_version(replies); |
6fd6ed71 | 5681 | size_t start_ofs = reply->size; |
3c4e10fb BP |
5682 | struct ofp13_table_features *otf; |
5683 | ||
5684 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
5685 | otf->table_id = tf->table_id; | |
f9ac0f03 | 5686 | ovs_strlcpy_arrays(otf->name, tf->name); |
3c4e10fb BP |
5687 | otf->metadata_match = tf->metadata_match; |
5688 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
5689 | if (version >= OFP14_VERSION) { |
5690 | if (tf->supports_eviction) { | |
5691 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
5692 | } | |
5693 | if (tf->supports_vacancy_events) { | |
5694 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
5695 | } | |
5696 | } | |
3c4e10fb BP |
5697 | otf->max_entries = htonl(tf->max_entries); |
5698 | ||
5699 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
5700 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
5701 | ||
5702 | put_fields_property(reply, &tf->match, &tf->mask, | |
5703 | OFPTFPT13_MATCH, version); | |
5704 | put_fields_property(reply, &tf->wildcard, NULL, | |
5705 | OFPTFPT13_WILDCARDS, version); | |
5706 | ||
5707 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5708 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5709 | ofpmp_postappend(replies, start_ofs); |
5710 | } | |
5711 | ||
bab86012 SJ |
5712 | static enum ofperr |
5713 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5714 | struct ofputil_table_desc *td) | |
5715 | { | |
5716 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5717 | ||
5718 | if (property->size != sizeof *otv) { | |
5719 | return OFPERR_OFPBPC_BAD_LEN; | |
5720 | } | |
5721 | ||
5722 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5723 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5724 | td->table_vacancy.vacancy = otv->vacancy; | |
5725 | return 0; | |
5726 | } | |
5727 | ||
03c72922 BP |
5728 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5729 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5730 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5731 | * value. */ | |
5732 | int | |
5733 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5734 | struct ofputil_table_desc *td, | |
5735 | enum ofp_version version) | |
5736 | { | |
03c72922 BP |
5737 | memset(td, 0, sizeof *td); |
5738 | ||
5739 | if (!msg->header) { | |
5740 | ofpraw_pull_assert(msg); | |
5741 | } | |
5742 | ||
5743 | if (!msg->size) { | |
5744 | return EOF; | |
5745 | } | |
5746 | ||
0a2869d5 | 5747 | struct ofp14_table_desc *otd = ofpbuf_try_pull(msg, sizeof *otd); |
03c72922 BP |
5748 | if (!otd) { |
5749 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5750 | "leftover bytes at end", msg->size); | |
5751 | return OFPERR_OFPBRC_BAD_LEN; | |
5752 | } | |
5753 | ||
5754 | td->table_id = otd->table_id; | |
0a2869d5 | 5755 | size_t length = ntohs(otd->length); |
03c72922 BP |
5756 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { |
5757 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5758 | "length %"PRIuSIZE, length); | |
5759 | return OFPERR_OFPBRC_BAD_LEN; | |
5760 | } | |
5761 | length -= sizeof *otd; | |
03c72922 BP |
5762 | |
5763 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5764 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5765 | td->eviction_flags = UINT32_MAX; |
5766 | ||
0a2869d5 BP |
5767 | struct ofpbuf properties = ofpbuf_const_initializer( |
5768 | ofpbuf_pull(msg, length), length); | |
03c72922 BP |
5769 | while (properties.size > 0) { |
5770 | struct ofpbuf payload; | |
5771 | enum ofperr error; | |
34a543e3 | 5772 | uint64_t type; |
03c72922 | 5773 | |
c5562271 | 5774 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5775 | if (error) { |
5776 | return error; | |
5777 | } | |
5778 | ||
5779 | switch (type) { | |
5780 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5781 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5782 | break; |
5783 | ||
bab86012 SJ |
5784 | case OFPTMPT14_VACANCY: |
5785 | error = parse_table_desc_vacancy_property(&payload, td); | |
5786 | break; | |
5787 | ||
03c72922 | 5788 | default: |
34a543e3 | 5789 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5790 | break; |
5791 | } | |
5792 | ||
5793 | if (error) { | |
5794 | return error; | |
5795 | } | |
5796 | } | |
5797 | ||
5798 | return 0; | |
5799 | } | |
5800 | ||
5801 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5802 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5803 | struct ofpbuf * | |
5804 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5805 | { | |
5806 | struct ofpbuf *request = NULL; | |
5807 | ||
5808 | if (ofp_version >= OFP14_VERSION) { | |
5809 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5810 | ofp_version, 0); | |
5811 | } else { | |
5812 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5813 | "(\'-O OpenFlow14\')"); | |
5814 | } | |
5815 | ||
5816 | return request; | |
5817 | } | |
5818 | ||
5819 | /* Function to append Table desc information in a reply list. */ | |
5820 | void | |
5821 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5822 | struct ovs_list *replies, | |
5823 | enum ofp_version version) | |
5824 | { | |
417e7e66 | 5825 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
03c72922 BP |
5826 | size_t start_otd; |
5827 | struct ofp14_table_desc *otd; | |
5828 | ||
5829 | start_otd = reply->size; | |
5830 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5831 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5832 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5833 | } |
bab86012 SJ |
5834 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5835 | struct ofp14_table_mod_prop_vacancy *otv; | |
5836 | ||
303721ee | 5837 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5838 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5839 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5840 | otv->vacancy = td->table_vacancy.vacancy; | |
5841 | } | |
03c72922 BP |
5842 | |
5843 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5844 | otd->length = htons(reply->size - start_otd); | |
5845 | otd->table_id = td->table_id; | |
5846 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5847 | td->eviction, td->vacancy, |
5848 | version); | |
03c72922 BP |
5849 | ofpmp_postappend(replies, start_otd); |
5850 | } | |
5851 | ||
de7d3c07 SJ |
5852 | /* This function parses Vacancy property, and decodes the |
5853 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5854 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5855 | * greater than vacancy_up and also when current vacancy has non-zero | |
5856 | * value. Returns 0 on success. */ | |
5857 | static enum ofperr | |
5858 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5859 | struct ofputil_table_mod *tm) | |
5860 | { | |
5861 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5862 | ||
5863 | if (property->size != sizeof *otv) { | |
5864 | return OFPERR_OFPBPC_BAD_LEN; | |
5865 | } | |
5866 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5867 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5868 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5869 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5870 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5871 | return OFPERR_OFPBPC_BAD_VALUE; |
5872 | } | |
5873 | if (tm->table_vacancy.vacancy_down > 100 || | |
5874 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5875 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5876 | "should not be greater than 100"); | |
de7d3c07 SJ |
5877 | return OFPERR_OFPBPC_BAD_VALUE; |
5878 | } | |
5879 | tm->table_vacancy.vacancy = otv->vacancy; | |
5880 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5881 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5882 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5883 | return OFPERR_OFPBPC_BAD_VALUE; |
5884 | } | |
5885 | return 0; | |
5886 | } | |
5887 | ||
5888 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5889 | * table configuration (a table mod, table stats, or table features message), | |
5890 | * returns the table vacancy configuration that it specifies. | |
5891 | * | |
5892 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5893 | * so for other 'version' this function always returns | |
5894 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5895 | static enum ofputil_table_vacancy | |
5896 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5897 | { | |
5898 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5899 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5900 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5901 | } | |
5902 | ||
3c1bb396 BP |
5903 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5904 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5905 | * returns the table eviction configuration that it specifies. |
5906 | * | |
5907 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5908 | * so for other 'version' values this function always returns | |
5909 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5910 | static enum ofputil_table_eviction | |
5911 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5912 | { | |
5913 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5914 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5915 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5916 | } | |
5917 | ||
5918 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5919 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5920 | * 'eviction' values. */ | |
5921 | static ovs_be32 | |
5922 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5923 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5924 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5925 | enum ofp_version version) |
5926 | { | |
de7d3c07 | 5927 | uint32_t config = 0; |
7c9afefd | 5928 | /* Search for "OFPTC_* Table Configuration" in the documentation for more |
82c22d34 BP |
5929 | * information on the crazy evolution of this field. */ |
5930 | switch (version) { | |
5931 | case OFP10_VERSION: | |
5932 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5933 | return htonl(0); | |
5934 | ||
5935 | case OFP11_VERSION: | |
5936 | case OFP12_VERSION: | |
5937 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5938 | switch (miss) { | |
5939 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5940 | /* Really this shouldn't be used for encoding (the caller should | |
5941 | * provide a specific value) but I can't imagine that defaulting to | |
5942 | * the fall-through case here will hurt. */ | |
5943 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5944 | default: | |
5945 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5946 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5947 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5948 | case OFPUTIL_TABLE_MISS_DROP: | |
5949 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5950 | } | |
5951 | OVS_NOT_REACHED(); | |
5952 | ||
5953 | case OFP13_VERSION: | |
5954 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5955 | * flags, so this is correct. */ | |
5956 | return htonl(0); | |
5957 | ||
5958 | case OFP14_VERSION: | |
5959 | case OFP15_VERSION: | |
b79d45a1 | 5960 | case OFP16_VERSION: |
de7d3c07 SJ |
5961 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5962 | * OFPTC14_VACANCY_EVENTS. */ | |
5963 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5964 | config |= OFPTC14_EVICTION; | |
5965 | } | |
5966 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5967 | config |= OFPTC14_VACANCY_EVENTS; | |
5968 | } | |
5969 | return htonl(config); | |
82c22d34 BP |
5970 | } |
5971 | ||
5972 | OVS_NOT_REACHED(); | |
5973 | } | |
5974 | ||
5975 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5976 | * table configuration (a table mod, table stats, or table features message), | |
5977 | * returns the table miss configuration that it specifies. | |
5978 | * | |
5979 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5980 | * other 'version' values this function always returns | |
5981 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5982 | static enum ofputil_table_miss |
82c22d34 | 5983 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5984 | { |
5985 | uint32_t config = ntohl(config_); | |
5986 | ||
82c22d34 | 5987 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5988 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5989 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5990 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5991 | ||
5992 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5993 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5994 | ||
5995 | case OFPTC11_TABLE_MISS_DROP: | |
5996 | return OFPUTIL_TABLE_MISS_DROP; | |
5997 | ||
5998 | default: | |
5999 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
6000 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
6001 | } | |
6002 | } else { | |
6003 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
6004 | } | |
6005 | } | |
6006 | ||
918f2b82 AZ |
6007 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
6008 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
6009 | enum ofperr | |
6010 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
6011 | struct ofputil_table_mod *pm) | |
6012 | { | |
82c22d34 BP |
6013 | memset(pm, 0, sizeof *pm); |
6014 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
6015 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
6016 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 6017 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 | 6018 | |
0a2869d5 BP |
6019 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6020 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
918f2b82 | 6021 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { |
6fd6ed71 | 6022 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
6023 | |
6024 | pm->table_id = otm->table_id; | |
82c22d34 | 6025 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
6026 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
6027 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
6028 | ||
6029 | pm->table_id = otm->table_id; | |
82c22d34 BP |
6030 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
6031 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 6032 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
6033 | while (b.size > 0) { |
6034 | struct ofpbuf property; | |
6035 | enum ofperr error; | |
34a543e3 | 6036 | uint64_t type; |
82c22d34 | 6037 | |
c5562271 | 6038 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
6039 | if (error) { |
6040 | return error; | |
6041 | } | |
6042 | ||
6043 | switch (type) { | |
6044 | case OFPTMPT14_EVICTION: | |
b611d3ac | 6045 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
6046 | break; |
6047 | ||
de7d3c07 SJ |
6048 | case OFPTMPT14_VACANCY: |
6049 | error = parse_table_mod_vacancy_property(&property, pm); | |
6050 | break; | |
6051 | ||
82c22d34 BP |
6052 | default: |
6053 | error = OFPERR_OFPBRC_BAD_TYPE; | |
6054 | break; | |
6055 | } | |
6056 | ||
6057 | if (error) { | |
6058 | return error; | |
6059 | } | |
6060 | } | |
918f2b82 AZ |
6061 | } else { |
6062 | return OFPERR_OFPBRC_BAD_TYPE; | |
6063 | } | |
6064 | ||
6065 | return 0; | |
6066 | } | |
6067 | ||
82c22d34 BP |
6068 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
6069 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
6070 | * buffer owned by the caller. */ | |
918f2b82 | 6071 | struct ofpbuf * |
82c22d34 | 6072 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
6073 | enum ofputil_protocol protocol) |
6074 | { | |
6075 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6076 | struct ofpbuf *b; | |
6077 | ||
6078 | switch (ofp_version) { | |
6079 | case OFP10_VERSION: { | |
6080 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
6081 | "(\'-O OpenFlow11\')"); | |
6082 | break; | |
6083 | } | |
6084 | case OFP11_VERSION: | |
6085 | case OFP12_VERSION: | |
6086 | case OFP13_VERSION: { | |
6087 | struct ofp11_table_mod *otm; | |
2e3fa633 | 6088 | |
918f2b82 AZ |
6089 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
6090 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
6091 | otm->table_id = tm->table_id; |
6092 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 6093 | tm->vacancy, ofp_version); |
918f2b82 AZ |
6094 | break; |
6095 | } | |
42dccab5 | 6096 | case OFP14_VERSION: |
b79d45a1 BP |
6097 | case OFP15_VERSION: |
6098 | case OFP16_VERSION: { | |
37ab26e8 BP |
6099 | struct ofp14_table_mod *otm; |
6100 | ||
6101 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
6102 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
6103 | otm->table_id = tm->table_id; |
6104 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 6105 | tm->vacancy, ofp_version); |
82c22d34 BP |
6106 | |
6107 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 6108 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 6109 | } |
de7d3c07 | 6110 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
6111 | struct ofp14_table_mod_prop_vacancy *otv; |
6112 | ||
6113 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
6114 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
6115 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
6116 | } | |
c37c0382 | 6117 | break; |
37ab26e8 | 6118 | } |
2e3fa633 | 6119 | default: |
428b2edd | 6120 | OVS_NOT_REACHED(); |
9e1fd49b BP |
6121 | } |
6122 | ||
6123 | return b; | |
6124 | } | |
2b07c8b1 | 6125 | \f |
6ea4776b JR |
6126 | /* ofputil_role_request */ |
6127 | ||
6128 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
6129 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
6130 | * OFPERR_* value. */ | |
6131 | enum ofperr | |
6132 | ofputil_decode_role_message(const struct ofp_header *oh, | |
6133 | struct ofputil_role_request *rr) | |
6134 | { | |
0a2869d5 BP |
6135 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6136 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
f4f1ea7e BP |
6137 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
6138 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 6139 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 6140 | |
f4f1ea7e BP |
6141 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6142 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6143 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
6144 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6145 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
6146 | } |
6147 | ||
f4f1ea7e | 6148 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
6149 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
6150 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 6151 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
6152 | rr->have_generation_id = false; |
6153 | rr->generation_id = 0; | |
6154 | } else { | |
6155 | rr->have_generation_id = true; | |
6156 | rr->generation_id = ntohll(orr->generation_id); | |
6157 | } | |
6158 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
6159 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 6160 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
6161 | |
6162 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
6163 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
6164 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
6165 | ||
6166 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
6167 | nrr->role != htonl(NX_ROLE_MASTER) && | |
6168 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
6169 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6170 | } | |
6ea4776b | 6171 | |
f4f1ea7e BP |
6172 | rr->role = ntohl(nrr->role) + 1; |
6173 | rr->have_generation_id = false; | |
6174 | rr->generation_id = 0; | |
6175 | } else { | |
428b2edd | 6176 | OVS_NOT_REACHED(); |
6ea4776b JR |
6177 | } |
6178 | ||
6ea4776b JR |
6179 | return 0; |
6180 | } | |
6181 | ||
6182 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
6183 | * buffer owned by the caller. */ | |
6184 | struct ofpbuf * | |
6185 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 6186 | const struct ofputil_role_request *rr) |
6ea4776b | 6187 | { |
6ea4776b | 6188 | struct ofpbuf *buf; |
6ea4776b JR |
6189 | enum ofpraw raw; |
6190 | ||
f4f1ea7e | 6191 | raw = ofpraw_decode_assert(request); |
6ea4776b | 6192 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 6193 | struct ofp12_role_request *orr; |
6ea4776b | 6194 | |
f4f1ea7e BP |
6195 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
6196 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 6197 | |
147cc9d3 BP |
6198 | orr->role = htonl(rr->role); |
6199 | orr->generation_id = htonll(rr->have_generation_id | |
6200 | ? rr->generation_id | |
6201 | : UINT64_MAX); | |
f4f1ea7e BP |
6202 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
6203 | struct nx_role_request *nrr; | |
6204 | ||
6205 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
6206 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
6207 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
6208 | ||
6209 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
6210 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
6211 | nrr->role = htonl(rr->role - 1); | |
6212 | } else { | |
428b2edd | 6213 | OVS_NOT_REACHED(); |
6ea4776b | 6214 | } |
6ea4776b JR |
6215 | |
6216 | return buf; | |
6217 | } | |
6218 | \f | |
6751a4b4 BP |
6219 | /* Encodes "role status" message 'status' for sending in the given |
6220 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
6221 | * otherwise a null pointer. */ | |
00467f73 AC |
6222 | struct ofpbuf * |
6223 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
6224 | enum ofputil_protocol protocol) | |
6225 | { | |
00467f73 | 6226 | enum ofp_version version; |
00467f73 AC |
6227 | |
6228 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
6229 | if (version >= OFP14_VERSION) { |
6230 | struct ofp14_role_status *rstatus; | |
6231 | struct ofpbuf *buf; | |
6232 | ||
6233 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
6234 | 0); | |
6235 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
6236 | rstatus->role = htonl(status->role); | |
6237 | rstatus->reason = status->reason; | |
6238 | rstatus->generation_id = htonll(status->generation_id); | |
6239 | ||
6240 | return buf; | |
6241 | } else { | |
6242 | return NULL; | |
6243 | } | |
00467f73 AC |
6244 | } |
6245 | ||
6246 | enum ofperr | |
6247 | ofputil_decode_role_status(const struct ofp_header *oh, | |
6248 | struct ofputil_role_status *rs) | |
6249 | { | |
0a2869d5 BP |
6250 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6251 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
00467f73 AC |
6252 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); |
6253 | ||
0a2869d5 | 6254 | const struct ofp14_role_status *r = b.msg; |
00467f73 AC |
6255 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6256 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6257 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
6258 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6259 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6260 | } | |
6261 | ||
6262 | rs->role = ntohl(r->role); | |
6263 | rs->generation_id = ntohll(r->generation_id); | |
6264 | rs->reason = r->reason; | |
6265 | ||
6266 | return 0; | |
6267 | } | |
6268 | ||
3c35db62 NR |
6269 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
6270 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
6271 | struct ofpbuf * | |
6272 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
6273 | enum ofputil_protocol protocol) | |
6274 | { | |
6275 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6276 | struct ofpbuf *inner; | |
6277 | ||
6278 | switch (rf->reason) { | |
6279 | case OFPRFR_GROUP_MOD: | |
6280 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
6281 | break; | |
6282 | ||
6283 | case OFPRFR_METER_MOD: | |
6284 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
6285 | break; | |
6286 | ||
d18cc1ee | 6287 | case OFPRFR_N_REASONS: |
3c35db62 NR |
6288 | default: |
6289 | OVS_NOT_REACHED(); | |
6290 | } | |
6291 | ||
6292 | struct ofp_header *inner_oh = inner->data; | |
6293 | inner_oh->xid = rf->xid; | |
6294 | inner_oh->length = htons(inner->size); | |
6295 | ||
6296 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
6297 | ofp_version, htonl(0), | |
6298 | inner->size); | |
6299 | ofpbuf_put(outer, inner->data, inner->size); | |
6300 | ofpbuf_delete(inner); | |
6301 | ||
6302 | return outer; | |
6303 | } | |
6304 | ||
6305 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
6306 | * form into '*rf' and returns 0, and the caller is later responsible for | |
6307 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
6308 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
6309 | enum ofperr | |
6310 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
6311 | struct ofputil_requestforward *rf) | |
6312 | { | |
0a2869d5 | 6313 | struct ofpbuf b = ofpbuf_const_initializer(outer, ntohs(outer->length)); |
3c35db62 NR |
6314 | |
6315 | /* Skip past outer message. */ | |
6316 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
6317 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
6318 | ||
6319 | /* Validate inner message. */ | |
6320 | if (b.size < sizeof(struct ofp_header)) { | |
6321 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6322 | } | |
6323 | const struct ofp_header *inner = b.data; | |
6324 | unsigned int inner_len = ntohs(inner->length); | |
6325 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
6326 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6327 | } | |
6328 | if (inner->version != outer->version) { | |
6329 | return OFPERR_OFPBRC_BAD_VERSION; | |
6330 | } | |
6331 | ||
6332 | /* Parse inner message. */ | |
6333 | enum ofptype type; | |
0a2869d5 | 6334 | enum ofperr error = ofptype_decode(&type, inner); |
3c35db62 NR |
6335 | if (error) { |
6336 | return error; | |
6337 | } | |
6338 | ||
6339 | rf->xid = inner->xid; | |
6340 | if (type == OFPTYPE_GROUP_MOD) { | |
6341 | rf->reason = OFPRFR_GROUP_MOD; | |
6342 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
6343 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
6344 | if (error) { | |
6345 | free(rf->group_mod); | |
6346 | return error; | |
6347 | } | |
6348 | } else if (type == OFPTYPE_METER_MOD) { | |
6349 | rf->reason = OFPRFR_METER_MOD; | |
6350 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
6351 | ofpbuf_init(&rf->bands, 64); | |
6352 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
6353 | if (error) { | |
6354 | free(rf->meter_mod); | |
6355 | ofpbuf_uninit(&rf->bands); | |
6356 | return error; | |
6357 | } | |
6358 | } else { | |
6359 | return OFPERR_OFPBFC_MSG_UNSUP; | |
6360 | } | |
6361 | ||
6362 | return 0; | |
6363 | } | |
6364 | ||
6365 | /* Frees the content of 'rf', which should have been initialized through a | |
6366 | * successful call to ofputil_decode_requestforward(). */ | |
6367 | void | |
6368 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
6369 | { | |
6370 | if (!rf) { | |
6371 | return; | |
6372 | } | |
6373 | ||
6374 | switch (rf->reason) { | |
6375 | case OFPRFR_GROUP_MOD: | |
6376 | ofputil_uninit_group_mod(rf->group_mod); | |
6377 | free(rf->group_mod); | |
6378 | break; | |
6379 | ||
6380 | case OFPRFR_METER_MOD: | |
6381 | ofpbuf_uninit(&rf->bands); | |
6382 | free(rf->meter_mod); | |
d18cc1ee AA |
6383 | break; |
6384 | ||
6385 | case OFPRFR_N_REASONS: | |
6386 | OVS_NOT_REACHED(); | |
3c35db62 NR |
6387 | } |
6388 | } | |
6389 | ||
307975da SH |
6390 | /* Table stats. */ |
6391 | ||
3c1bb396 BP |
6392 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
6393 | * matched and a field that must be wildcarded. This function returns a bitmap | |
6394 | * that contains both kinds of fields. */ | |
6395 | static struct mf_bitmap | |
6396 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
6397 | { | |
6398 | struct mf_bitmap wc = features->match; | |
6399 | bitmap_not(wc.bm, MFF_N_IDS); | |
6400 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
6401 | return wc; | |
6402 | } | |
6403 | ||
6404 | struct ofp10_wc_map { | |
6405 | enum ofp10_flow_wildcards wc10; | |
6406 | enum mf_field_id mf; | |
6407 | }; | |
6408 | ||
6409 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
6410 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
6411 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
6412 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
6413 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
6414 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
6415 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
6416 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
6417 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
6418 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
6419 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
6420 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6421 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
6422 | }; | |
6423 | ||
6424 | static ovs_be32 | |
6425 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
6426 | { | |
6427 | const struct ofp10_wc_map *p; | |
6428 | uint32_t wc10 = 0; | |
6429 | ||
6430 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6431 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6432 | wc10 |= p->wc10; | |
6433 | } | |
6434 | } | |
6435 | return htonl(wc10); | |
6436 | } | |
6437 | ||
6438 | static struct mf_bitmap | |
6439 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
6440 | { | |
6441 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6442 | const struct ofp10_wc_map *p; | |
6443 | uint32_t wc10 = ntohl(wc10_); | |
6444 | ||
6445 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6446 | if (wc10 & p->wc10) { | |
6447 | bitmap_set1(fields.bm, p->mf); | |
6448 | } | |
6449 | } | |
6450 | return fields; | |
6451 | } | |
6452 | ||
307975da | 6453 | static void |
3c1bb396 BP |
6454 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
6455 | const struct ofputil_table_features *features, | |
307975da SH |
6456 | struct ofpbuf *buf) |
6457 | { | |
3c1bb396 | 6458 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 6459 | struct ofp10_table_stats *out; |
307975da | 6460 | |
3bdc692b | 6461 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6462 | out->table_id = features->table_id; |
f9ac0f03 | 6463 | ovs_strlcpy_arrays(out->name, features->name); |
3c1bb396 BP |
6464 | out->wildcards = mf_bitmap_to_of10(&wc); |
6465 | out->max_entries = htonl(features->max_entries); | |
6466 | out->active_count = htonl(stats->active_count); | |
6467 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
6468 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
6469 | } | |
6470 | ||
6471 | struct ofp11_wc_map { | |
6472 | enum ofp11_flow_match_fields wc11; | |
6473 | enum mf_field_id mf; | |
6474 | }; | |
6475 | ||
6476 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
6477 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
6478 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
6479 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6480 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
6481 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
6482 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
6483 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
6484 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
6485 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
6486 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
6487 | /* I don't know what OFPFMF11_TYPE means. */ | |
6488 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
6489 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
6490 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
6491 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
6492 | { OFPFMF11_METADATA, MFF_METADATA }, | |
6493 | }; | |
6494 | ||
6495 | static ovs_be32 | |
6496 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
6497 | { | |
6498 | const struct ofp11_wc_map *p; | |
6499 | uint32_t wc11 = 0; | |
6500 | ||
6501 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6502 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6503 | wc11 |= p->wc11; | |
307975da SH |
6504 | } |
6505 | } | |
3c1bb396 | 6506 | return htonl(wc11); |
307975da SH |
6507 | } |
6508 | ||
3c1bb396 BP |
6509 | static struct mf_bitmap |
6510 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
6511 | { | |
6512 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6513 | const struct ofp11_wc_map *p; | |
6514 | uint32_t wc11 = ntohl(wc11_); | |
6515 | ||
6516 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6517 | if (wc11 & p->wc11) { | |
6518 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
6519 | } |
6520 | } | |
3c1bb396 | 6521 | return fields; |
307975da SH |
6522 | } |
6523 | ||
6524 | static void | |
3c1bb396 BP |
6525 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
6526 | const struct ofputil_table_features *features, | |
307975da SH |
6527 | struct ofpbuf *buf) |
6528 | { | |
3c1bb396 | 6529 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
6530 | struct ofp11_table_stats *out; |
6531 | ||
3bdc692b | 6532 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6533 | out->table_id = features->table_id; |
f9ac0f03 | 6534 | ovs_strlcpy_arrays(out->name, features->name); |
3c1bb396 BP |
6535 | out->wildcards = mf_bitmap_to_of11(&wc); |
6536 | out->match = mf_bitmap_to_of11(&features->match); | |
6537 | out->instructions = ovsinst_bitmap_to_openflow( | |
6538 | features->nonmiss.instructions, OFP11_VERSION); | |
6539 | out->write_actions = ofpact_bitmap_to_openflow( | |
6540 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
6541 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6542 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
6543 | out->config = htonl(features->miss_config); | |
6544 | out->max_entries = htonl(features->max_entries); | |
6545 | out->active_count = htonl(stats->active_count); | |
6546 | out->lookup_count = htonll(stats->lookup_count); | |
6547 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
6548 | } |
6549 | ||
6240624b | 6550 | static void |
3c1bb396 BP |
6551 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
6552 | const struct ofputil_table_features *features, | |
6240624b BP |
6553 | struct ofpbuf *buf) |
6554 | { | |
08d1e234 | 6555 | struct ofp12_table_stats *out; |
6240624b | 6556 | |
08d1e234 | 6557 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6558 | out->table_id = features->table_id; |
f9ac0f03 | 6559 | ovs_strlcpy_arrays(out->name, features->name); |
178742f9 BP |
6560 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
6561 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
6562 | OFP12_VERSION); |
6563 | out->write_actions = ofpact_bitmap_to_openflow( | |
6564 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
6565 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6566 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 6567 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 6568 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 6569 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
6570 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
6571 | out->metadata_match = features->metadata_match; | |
6572 | out->metadata_write = features->metadata_write; | |
6573 | out->instructions = ovsinst_bitmap_to_openflow( | |
6574 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
6575 | out->config = ofputil_encode_table_config(features->miss_config, |
6576 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 6577 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 6578 | OFP12_VERSION); |
3c1bb396 BP |
6579 | out->max_entries = htonl(features->max_entries); |
6580 | out->active_count = htonl(stats->active_count); | |
6581 | out->lookup_count = htonll(stats->lookup_count); | |
6582 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
6583 | } |
6584 | ||
2e1ae200 | 6585 | static void |
3c1bb396 | 6586 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
6587 | struct ofpbuf *buf) |
6588 | { | |
6589 | struct ofp13_table_stats *out; | |
6590 | ||
3c1bb396 BP |
6591 | out = ofpbuf_put_zeros(buf, sizeof *out); |
6592 | out->table_id = stats->table_id; | |
6593 | out->active_count = htonl(stats->active_count); | |
6594 | out->lookup_count = htonll(stats->lookup_count); | |
6595 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
6596 | } |
6597 | ||
307975da | 6598 | struct ofpbuf * |
3c1bb396 | 6599 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 6600 | { |
3c1bb396 BP |
6601 | return ofpraw_alloc_stats_reply(request, 0); |
6602 | } | |
307975da | 6603 | |
3c1bb396 BP |
6604 | void |
6605 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
6606 | const struct ofputil_table_stats *stats, | |
6607 | const struct ofputil_table_features *features) | |
6608 | { | |
6fd6ed71 | 6609 | struct ofp_header *oh = reply->header; |
307975da | 6610 | |
3c1bb396 | 6611 | ovs_assert(stats->table_id == features->table_id); |
307975da | 6612 | |
3c1bb396 BP |
6613 | switch ((enum ofp_version) oh->version) { |
6614 | case OFP10_VERSION: | |
6615 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
6616 | break; | |
307975da | 6617 | |
3c1bb396 BP |
6618 | case OFP11_VERSION: |
6619 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
6620 | break; | |
307975da | 6621 | |
3c1bb396 BP |
6622 | case OFP12_VERSION: |
6623 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
6624 | break; | |
2e1ae200 | 6625 | |
3c1bb396 BP |
6626 | case OFP13_VERSION: |
6627 | case OFP14_VERSION: | |
6628 | case OFP15_VERSION: | |
b79d45a1 | 6629 | case OFP16_VERSION: |
3c1bb396 BP |
6630 | ofputil_put_ofp13_table_stats(stats, reply); |
6631 | break; | |
6632 | ||
6633 | default: | |
6634 | OVS_NOT_REACHED(); | |
307975da | 6635 | } |
3c1bb396 | 6636 | } |
307975da | 6637 | |
3c1bb396 BP |
6638 | static int |
6639 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
6640 | struct ofputil_table_stats *stats, | |
6641 | struct ofputil_table_features *features) | |
6642 | { | |
6643 | struct ofp10_table_stats *ots; | |
6644 | ||
6645 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6646 | if (!ots) { | |
6647 | return OFPERR_OFPBRC_BAD_LEN; | |
6648 | } | |
6649 | ||
6650 | features->table_id = ots->table_id; | |
f9ac0f03 | 6651 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6652 | features->max_entries = ntohl(ots->max_entries); |
6653 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6654 | ||
6655 | stats->table_id = ots->table_id; | |
6656 | stats->active_count = ntohl(ots->active_count); | |
6657 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6658 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6659 | ||
6660 | return 0; | |
6661 | } | |
6662 | ||
6663 | static int | |
6664 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6665 | struct ofputil_table_stats *stats, | |
6666 | struct ofputil_table_features *features) | |
6667 | { | |
6668 | struct ofp11_table_stats *ots; | |
6669 | ||
6670 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6671 | if (!ots) { | |
6672 | return OFPERR_OFPBRC_BAD_LEN; | |
6673 | } | |
6674 | ||
6675 | features->table_id = ots->table_id; | |
f9ac0f03 | 6676 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6677 | features->max_entries = ntohl(ots->max_entries); |
6678 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6679 | ots->instructions, OFP11_VERSION); | |
6680 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6681 | ots->write_actions, OFP11_VERSION); | |
6682 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6683 | ots->write_actions, OFP11_VERSION); | |
6684 | features->miss = features->nonmiss; | |
82c22d34 BP |
6685 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6686 | OFP11_VERSION); | |
3c1bb396 BP |
6687 | features->match = mf_bitmap_from_of11(ots->match); |
6688 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6689 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6690 | ||
6691 | stats->table_id = ots->table_id; | |
6692 | stats->active_count = ntohl(ots->active_count); | |
6693 | stats->lookup_count = ntohll(ots->lookup_count); | |
6694 | stats->matched_count = ntohll(ots->matched_count); | |
6695 | ||
6696 | return 0; | |
6697 | } | |
6698 | ||
6699 | static int | |
6700 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6701 | struct ofputil_table_stats *stats, | |
6702 | struct ofputil_table_features *features) | |
6703 | { | |
6704 | struct ofp12_table_stats *ots; | |
6705 | ||
6706 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6707 | if (!ots) { | |
6708 | return OFPERR_OFPBRC_BAD_LEN; | |
6709 | } | |
6710 | ||
6711 | features->table_id = ots->table_id; | |
f9ac0f03 | 6712 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6713 | features->metadata_match = ots->metadata_match; |
6714 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6715 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6716 | OFP12_VERSION); | |
3c1bb396 BP |
6717 | features->max_entries = ntohl(ots->max_entries); |
6718 | ||
6719 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6720 | ots->instructions, OFP12_VERSION); | |
6721 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6722 | ots->write_actions, OFP12_VERSION); | |
6723 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6724 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6725 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6726 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6727 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6728 | ots->apply_setfields, OFP12_VERSION); |
6729 | features->miss = features->nonmiss; | |
6730 | ||
178742f9 BP |
6731 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6732 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6733 | OFP12_VERSION); | |
3c1bb396 BP |
6734 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6735 | ||
6736 | stats->table_id = ots->table_id; | |
6737 | stats->active_count = ntohl(ots->active_count); | |
6738 | stats->lookup_count = ntohll(ots->lookup_count); | |
6739 | stats->matched_count = ntohll(ots->matched_count); | |
6740 | ||
6741 | return 0; | |
6742 | } | |
6743 | ||
6744 | static int | |
6745 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6746 | struct ofputil_table_stats *stats, | |
6747 | struct ofputil_table_features *features) | |
6748 | { | |
6749 | struct ofp13_table_stats *ots; | |
6750 | ||
6751 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6752 | if (!ots) { | |
6753 | return OFPERR_OFPBRC_BAD_LEN; | |
6754 | } | |
6755 | ||
6756 | features->table_id = ots->table_id; | |
6757 | ||
6758 | stats->table_id = ots->table_id; | |
6759 | stats->active_count = ntohl(ots->active_count); | |
6760 | stats->lookup_count = ntohll(ots->lookup_count); | |
6761 | stats->matched_count = ntohll(ots->matched_count); | |
6762 | ||
6763 | return 0; | |
6764 | } | |
6765 | ||
6766 | int | |
6767 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6768 | struct ofputil_table_stats *stats, | |
6769 | struct ofputil_table_features *features) | |
6770 | { | |
6771 | const struct ofp_header *oh; | |
6772 | ||
6fd6ed71 | 6773 | if (!msg->header) { |
3c1bb396 BP |
6774 | ofpraw_pull_assert(msg); |
6775 | } | |
6fd6ed71 | 6776 | oh = msg->header; |
3c1bb396 | 6777 | |
6fd6ed71 | 6778 | if (!msg->size) { |
3c1bb396 BP |
6779 | return EOF; |
6780 | } | |
6781 | ||
6782 | memset(stats, 0, sizeof *stats); | |
6783 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6784 | features->supports_eviction = -1; |
6785 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6786 | |
6787 | switch ((enum ofp_version) oh->version) { | |
6788 | case OFP10_VERSION: | |
6789 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6790 | ||
6791 | case OFP11_VERSION: | |
6792 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6793 | ||
6794 | case OFP12_VERSION: | |
6795 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6796 | ||
6797 | case OFP13_VERSION: | |
6798 | case OFP14_VERSION: | |
6799 | case OFP15_VERSION: | |
b79d45a1 | 6800 | case OFP16_VERSION: |
3c1bb396 BP |
6801 | return ofputil_decode_ofp13_table_stats(msg, stats, features); |
6802 | ||
6803 | default: | |
6804 | OVS_NOT_REACHED(); | |
6805 | } | |
307975da SH |
6806 | } |
6807 | \f | |
2b07c8b1 BP |
6808 | /* ofputil_flow_monitor_request */ |
6809 | ||
6810 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6811 | * ofputil_flow_monitor_request in 'rq'. | |
6812 | * | |
6813 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6814 | * message. Calling this function multiple times for a single 'msg' iterates | |
6815 | * through the requests. The caller must initially leave 'msg''s layer | |
6816 | * pointers null and not modify them between calls. | |
6817 | * | |
6818 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6819 | * otherwise an OFPERR_* value. */ | |
6820 | int | |
6821 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6822 | struct ofpbuf *msg) | |
6823 | { | |
6824 | struct nx_flow_monitor_request *nfmr; | |
6825 | uint16_t flags; | |
6826 | ||
6fd6ed71 | 6827 | if (!msg->header) { |
982697a4 | 6828 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6829 | } |
6830 | ||
6fd6ed71 | 6831 | if (!msg->size) { |
2b07c8b1 BP |
6832 | return EOF; |
6833 | } | |
6834 | ||
6835 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6836 | if (!nfmr) { | |
437d0d22 | 6837 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6838 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6839 | return OFPERR_OFPBRC_BAD_LEN; |
6840 | } | |
6841 | ||
6842 | flags = ntohs(nfmr->flags); | |
6843 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6844 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6845 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6846 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6847 | flags); | |
04f9f286 | 6848 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6849 | } |
6850 | ||
6851 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6852 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6853 | } | |
6854 | ||
6855 | rq->id = ntohl(nfmr->id); | |
6856 | rq->flags = flags; | |
4e022ec0 | 6857 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6858 | rq->table_id = nfmr->table_id; |
6859 | ||
8d8ab6c2 | 6860 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, |
d7892c81 | 6861 | NULL, false, NULL, NULL); |
2b07c8b1 BP |
6862 | } |
6863 | ||
6864 | void | |
6865 | ofputil_append_flow_monitor_request( | |
6866 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6867 | { | |
6868 | struct nx_flow_monitor_request *nfmr; | |
6869 | size_t start_ofs; | |
6870 | int match_len; | |
6871 | ||
6fd6ed71 | 6872 | if (!msg->size) { |
982697a4 | 6873 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6874 | } |
6875 | ||
6fd6ed71 | 6876 | start_ofs = msg->size; |
2b07c8b1 | 6877 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6878 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6879 | |
6880 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6881 | nfmr->id = htonl(rq->id); | |
6882 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6883 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6884 | nfmr->match_len = htons(match_len); |
6885 | nfmr->table_id = rq->table_id; | |
6886 | } | |
6887 | ||
6888 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6889 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6890 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6891 | * |
6892 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6893 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6894 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6895 | * will point into the 'ofpacts' buffer. | |
6896 | * | |
6897 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6898 | * this function multiple times for a single 'msg' iterates through the | |
6899 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6900 | * not modify them between calls. | |
6901 | * | |
6902 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6903 | * otherwise an OFPERR_* value. */ | |
6904 | int | |
6905 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6906 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6907 | { | |
6908 | struct nx_flow_update_header *nfuh; | |
6909 | unsigned int length; | |
e3f8f887 | 6910 | struct ofp_header *oh; |
2b07c8b1 | 6911 | |
6fd6ed71 | 6912 | if (!msg->header) { |
982697a4 | 6913 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6914 | } |
6915 | ||
9abca1e5 | 6916 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6917 | if (!msg->size) { |
2b07c8b1 BP |
6918 | return EOF; |
6919 | } | |
6920 | ||
6fd6ed71 | 6921 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6922 | goto bad_len; |
6923 | } | |
6924 | ||
6fd6ed71 | 6925 | oh = msg->header; |
e3f8f887 | 6926 | |
6fd6ed71 | 6927 | nfuh = msg->data; |
2b07c8b1 BP |
6928 | update->event = ntohs(nfuh->event); |
6929 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6930 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6931 | goto bad_len; |
6932 | } | |
6933 | ||
6934 | if (update->event == NXFME_ABBREV) { | |
6935 | struct nx_flow_update_abbrev *nfua; | |
6936 | ||
6937 | if (length != sizeof *nfua) { | |
6938 | goto bad_len; | |
6939 | } | |
6940 | ||
6941 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6942 | update->xid = nfua->xid; | |
6943 | return 0; | |
6944 | } else if (update->event == NXFME_ADDED | |
6945 | || update->event == NXFME_DELETED | |
6946 | || update->event == NXFME_MODIFIED) { | |
6947 | struct nx_flow_update_full *nfuf; | |
6948 | unsigned int actions_len; | |
6949 | unsigned int match_len; | |
6950 | enum ofperr error; | |
6951 | ||
6952 | if (length < sizeof *nfuf) { | |
6953 | goto bad_len; | |
6954 | } | |
6955 | ||
6956 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6957 | match_len = ntohs(nfuf->match_len); | |
6958 | if (sizeof *nfuf + match_len > length) { | |
6959 | goto bad_len; | |
6960 | } | |
6961 | ||
6962 | update->reason = ntohs(nfuf->reason); | |
6963 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6964 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6965 | update->table_id = nfuf->table_id; | |
6966 | update->cookie = nfuf->cookie; | |
81a76618 | 6967 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6968 | |
d7892c81 YHW |
6969 | error = nx_pull_match(msg, match_len, &update->match, NULL, NULL, |
6970 | false, NULL, NULL); | |
2b07c8b1 BP |
6971 | if (error) { |
6972 | return error; | |
6973 | } | |
6974 | ||
6975 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 | 6976 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5c7c16d8 | 6977 | NULL, NULL, ofpacts); |
2b07c8b1 BP |
6978 | if (error) { |
6979 | return error; | |
6980 | } | |
6981 | ||
6fd6ed71 PS |
6982 | update->ofpacts = ofpacts->data; |
6983 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6984 | return 0; |
6985 | } else { | |
6986 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6987 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6988 | ntohs(nfuh->event)); | |
15549878 | 6989 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6990 | } |
6991 | ||
6992 | bad_len: | |
437d0d22 | 6993 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6994 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6995 | return OFPERR_OFPBRC_BAD_LEN; |
6996 | } | |
6997 | ||
6998 | uint32_t | |
6999 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
7000 | { | |
982697a4 BP |
7001 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
7002 | ||
7003 | return ntohl(cancel->id); | |
2b07c8b1 | 7004 | } |
9e1fd49b | 7005 | |
2b07c8b1 BP |
7006 | struct ofpbuf * |
7007 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
7008 | { | |
7009 | struct nx_flow_monitor_cancel *nfmc; | |
7010 | struct ofpbuf *msg; | |
7011 | ||
982697a4 BP |
7012 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
7013 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
7014 | nfmc->id = htonl(id); |
7015 | return msg; | |
7016 | } | |
7017 | ||
7018 | void | |
ca6ba700 | 7019 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
7020 | { |
7021 | struct ofpbuf *msg; | |
7022 | ||
982697a4 BP |
7023 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
7024 | htonl(0), 1024); | |
2b07c8b1 | 7025 | |
417e7e66 BW |
7026 | ovs_list_init(replies); |
7027 | ovs_list_push_back(replies, &msg->list_node); | |
2b07c8b1 BP |
7028 | } |
7029 | ||
7030 | void | |
7031 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
140f36ba DDP |
7032 | struct ovs_list *replies, |
7033 | const struct tun_table *tun_table) | |
2b07c8b1 | 7034 | { |
140f36ba DDP |
7035 | struct ofputil_flow_update *update_ = |
7036 | CONST_CAST(struct ofputil_flow_update *, update); | |
7037 | const struct tun_table *orig_tun_table; | |
e28ac5cf | 7038 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
7039 | struct nx_flow_update_header *nfuh; |
7040 | struct ofpbuf *msg; | |
7041 | size_t start_ofs; | |
7042 | ||
140f36ba DDP |
7043 | orig_tun_table = update->match.flow.tunnel.metadata.tab; |
7044 | update_->match.flow.tunnel.metadata.tab = tun_table; | |
7045 | ||
417e7e66 | 7046 | msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 7047 | start_ofs = msg->size; |
2b07c8b1 BP |
7048 | |
7049 | if (update->event == NXFME_ABBREV) { | |
7050 | struct nx_flow_update_abbrev *nfua; | |
7051 | ||
7052 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
7053 | nfua->xid = update->xid; | |
7054 | } else { | |
7055 | struct nx_flow_update_full *nfuf; | |
7056 | int match_len; | |
7057 | ||
7058 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
140f36ba | 7059 | match_len = nx_put_match(msg, &update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
7060 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
7061 | version); | |
2b07c8b1 BP |
7062 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
7063 | nfuf->reason = htons(update->reason); | |
81a76618 | 7064 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
7065 | nfuf->idle_timeout = htons(update->idle_timeout); |
7066 | nfuf->hard_timeout = htons(update->hard_timeout); | |
7067 | nfuf->match_len = htons(match_len); | |
7068 | nfuf->table_id = update->table_id; | |
7069 | nfuf->cookie = update->cookie; | |
7070 | } | |
7071 | ||
7072 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 7073 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
7074 | nfuh->event = htons(update->event); |
7075 | ||
982697a4 | 7076 | ofpmp_postappend(replies, start_ofs); |
140f36ba | 7077 | update_->match.flow.tunnel.metadata.tab = orig_tun_table; |
2b07c8b1 BP |
7078 | } |
7079 | \f | |
c6a93eb7 | 7080 | struct ofpbuf * |
de0f3156 SH |
7081 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
7082 | enum ofputil_protocol protocol) | |
c6a93eb7 | 7083 | { |
de0f3156 | 7084 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
7085 | struct ofpbuf *msg; |
7086 | size_t size; | |
7087 | ||
982697a4 | 7088 | size = po->ofpacts_len; |
c6a93eb7 BP |
7089 | if (po->buffer_id == UINT32_MAX) { |
7090 | size += po->packet_len; | |
7091 | } | |
7092 | ||
de0f3156 SH |
7093 | switch (ofp_version) { |
7094 | case OFP10_VERSION: { | |
31a9e63f | 7095 | struct ofp10_packet_out *opo; |
de0f3156 SH |
7096 | size_t actions_ofs; |
7097 | ||
7098 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
7099 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 7100 | actions_ofs = msg->size; |
e3f8f887 JR |
7101 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
7102 | ofp_version); | |
de0f3156 | 7103 | |
6fd6ed71 | 7104 | opo = msg->msg; |
de0f3156 | 7105 | opo->buffer_id = htonl(po->buffer_id); |
35eb6326 YHW |
7106 | opo->in_port =htons(ofp_to_u16( |
7107 | po->flow_metadata.flow.in_port.ofp_port)); | |
6fd6ed71 | 7108 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
7109 | break; |
7110 | } | |
f25d0cf3 | 7111 | |
de0f3156 | 7112 | case OFP11_VERSION: |
2e1ae200 | 7113 | case OFP12_VERSION: |
c37c0382 | 7114 | case OFP13_VERSION: |
577bfa9f | 7115 | case OFP14_VERSION: { |
7c1b1a0d SH |
7116 | struct ofp11_packet_out *opo; |
7117 | size_t len; | |
7118 | ||
7119 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
7120 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
7121 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
7122 | ofp_version); | |
6fd6ed71 | 7123 | opo = msg->msg; |
7c1b1a0d | 7124 | opo->buffer_id = htonl(po->buffer_id); |
35eb6326 YHW |
7125 | opo->in_port = |
7126 | ofputil_port_to_ofp11(po->flow_metadata.flow.in_port.ofp_port); | |
7c1b1a0d SH |
7127 | opo->actions_len = htons(len); |
7128 | break; | |
7129 | } | |
7130 | ||
577bfa9f YHW |
7131 | case OFP15_VERSION: |
7132 | case OFP16_VERSION: { | |
7133 | struct ofp15_packet_out *opo; | |
7134 | size_t len; | |
7135 | ||
7136 | /* The final argument is just an estimate of the space required. */ | |
7137 | msg = ofpraw_alloc(OFPRAW_OFPT15_PACKET_OUT, ofp_version, | |
7138 | size + NXM_TYPICAL_LEN); | |
7139 | ofpbuf_put_zeros(msg, sizeof *opo); | |
7140 | oxm_put_match(msg, &po->flow_metadata, ofp_version); | |
7141 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, | |
7142 | ofp_version); | |
7143 | opo = msg->msg; | |
7144 | opo->buffer_id = htonl(po->buffer_id); | |
7145 | opo->actions_len = htons(len); | |
7146 | break; | |
7147 | } | |
7148 | ||
de0f3156 | 7149 | default: |
428b2edd | 7150 | OVS_NOT_REACHED(); |
de0f3156 | 7151 | } |
f25d0cf3 | 7152 | |
c6a93eb7 BP |
7153 | if (po->buffer_id == UINT32_MAX) { |
7154 | ofpbuf_put(msg, po->packet, po->packet_len); | |
7155 | } | |
f25d0cf3 | 7156 | |
982697a4 | 7157 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
7158 | |
7159 | return msg; | |
7160 | } | |
d1e2cf21 | 7161 | \f |
fa37b408 BP |
7162 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
7163 | struct ofpbuf * | |
1a126c0c | 7164 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 7165 | { |
1a126c0c | 7166 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 7167 | htonl(0), 0); |
fa37b408 BP |
7168 | } |
7169 | ||
7170 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
7171 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
7172 | struct ofpbuf * | |
7173 | make_echo_reply(const struct ofp_header *rq) | |
7174 | { | |
0a2869d5 | 7175 | struct ofpbuf rq_buf = ofpbuf_const_initializer(rq, ntohs(rq->length)); |
982697a4 BP |
7176 | ofpraw_pull_assert(&rq_buf); |
7177 | ||
0a2869d5 BP |
7178 | struct ofpbuf *reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, |
7179 | rq, rq_buf.size); | |
6fd6ed71 | 7180 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); |
982697a4 | 7181 | return reply; |
fa37b408 BP |
7182 | } |
7183 | ||
efb80167 | 7184 | struct ofpbuf * |
a0ae0b6e | 7185 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 7186 | { |
a0ae0b6e SH |
7187 | enum ofpraw type; |
7188 | ||
7189 | switch (ofp_version) { | |
b79d45a1 | 7190 | case OFP16_VERSION: |
42dccab5 | 7191 | case OFP15_VERSION: |
c37c0382 | 7192 | case OFP14_VERSION: |
2e1ae200 | 7193 | case OFP13_VERSION: |
a0ae0b6e SH |
7194 | case OFP12_VERSION: |
7195 | case OFP11_VERSION: | |
7196 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
7197 | break; | |
7198 | ||
7199 | case OFP10_VERSION: | |
7200 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
7201 | break; | |
7202 | ||
7203 | default: | |
428b2edd | 7204 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
7205 | } |
7206 | ||
7207 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
7208 | } |
7209 | ||
7257b535 | 7210 | const char * |
ad99e2ed | 7211 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 7212 | { |
ad99e2ed BP |
7213 | switch (frag) { |
7214 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
7215 | case OFPUTIL_FRAG_DROP: return "drop"; | |
7216 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
7217 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
7218 | } |
7219 | ||
428b2edd | 7220 | OVS_NOT_REACHED(); |
7257b535 BP |
7221 | } |
7222 | ||
7223 | bool | |
ad99e2ed BP |
7224 | ofputil_frag_handling_from_string(const char *s, |
7225 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
7226 | { |
7227 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 7228 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 7229 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 7230 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 7231 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 7232 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 7233 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 7234 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
7235 | } else { |
7236 | return false; | |
7237 | } | |
7238 | return true; | |
7239 | } | |
7240 | ||
7b7503ea BP |
7241 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
7242 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
7243 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 7244 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
7245 | * |
7246 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7247 | enum ofperr | |
4e022ec0 | 7248 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
7249 | { |
7250 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
7251 | ||
4e022ec0 AW |
7252 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
7253 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 7254 | return 0; |
4e022ec0 AW |
7255 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
7256 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
7257 | return 0; |
7258 | } else { | |
bc146369 | 7259 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
7260 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
7261 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
7262 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
7263 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
7264 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
7265 | } | |
7266 | } | |
7267 | ||
7268 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
7269 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
7270 | * | |
7271 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7272 | ovs_be32 | |
4e022ec0 | 7273 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 7274 | { |
4e022ec0 AW |
7275 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
7276 | ? ofp_to_u16(ofp10_port) | |
7277 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
7278 | } |
7279 | ||
39dc9082 BP |
7280 | #define OFPUTIL_NAMED_PORTS \ |
7281 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
7282 | OFPUTIL_NAMED_PORT(TABLE) \ | |
7283 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
7284 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
7285 | OFPUTIL_NAMED_PORT(ALL) \ | |
7286 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
7287 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
7288 | OFPUTIL_NAMED_PORT(ANY) \ |
7289 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
7290 | |
7291 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
7292 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
7293 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
7294 | OFPUTIL_NAMED_PORT(NONE) |
7295 | ||
8010100b BP |
7296 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
7297 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
50f96b10 BP |
7298 | * (e.g. "LOCAL"). If 'port_map' is nonnull, also accepts names in it (quoted |
7299 | * or unquoted). | |
c6100d92 | 7300 | * |
8010100b BP |
7301 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
7302 | * or name. The caller should issue an error message in this case, because | |
7303 | * this function usually does not. (This gives the caller an opportunity to | |
7304 | * look up the port name another way, e.g. by contacting the switch and listing | |
7305 | * the names of all its ports). | |
c6100d92 BP |
7306 | * |
7307 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
7308 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
7309 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 7310 | bool |
50f96b10 BP |
7311 | ofputil_port_from_string(const char *s, |
7312 | const struct ofputil_port_map *port_map, | |
7313 | ofp_port_t *portp) | |
39dc9082 | 7314 | { |
5b23ff7e | 7315 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 7316 | |
5b23ff7e JR |
7317 | if (*s == '-') { |
7318 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
7319 | return false; | |
7320 | } | |
8010100b | 7321 | *portp = 0; |
c6100d92 | 7322 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
7323 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
7324 | /* Pass. */ | |
7325 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
7326 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
7327 | "be translated to %u when talking to an OF1.1 or " | |
7328 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 7329 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
2f2b904f | 7330 | char name[OFP10_MAX_PORT_NAME_LEN]; |
28b11432 | 7331 | |
50f96b10 BP |
7332 | ofputil_port_to_string(u16_to_ofp(port32), NULL, |
7333 | name, sizeof name); | |
28b11432 BP |
7334 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " |
7335 | "for compatibility with OpenFlow 1.1 and later", | |
7336 | name, port32); | |
4e022ec0 | 7337 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 7338 | VLOG_WARN("port %u is outside the supported range 0 through " |
fd13c6b5 | 7339 | "%x or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 7340 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 7341 | return false; |
c6100d92 | 7342 | } else { |
4e022ec0 | 7343 | port32 -= OFPP11_OFFSET; |
c6100d92 | 7344 | } |
4e022ec0 AW |
7345 | |
7346 | *portp = u16_to_ofp(port32); | |
7347 | return true; | |
c6100d92 BP |
7348 | } else { |
7349 | struct pair { | |
7350 | const char *name; | |
4e022ec0 | 7351 | ofp_port_t value; |
c6100d92 BP |
7352 | }; |
7353 | static const struct pair pairs[] = { | |
39dc9082 | 7354 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 7355 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 7356 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
7357 | }; |
7358 | const struct pair *p; | |
39dc9082 | 7359 | |
c6100d92 BP |
7360 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
7361 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
7362 | *portp = p->value; |
7363 | return true; | |
c6100d92 | 7364 | } |
39dc9082 | 7365 | } |
50f96b10 BP |
7366 | |
7367 | ofp_port_t ofp_port = OFPP_NONE; | |
7368 | if (s[0] != '"') { | |
7369 | ofp_port = ofputil_port_map_get_number(port_map, s); | |
7370 | } else { | |
7371 | size_t length = strlen(s); | |
7372 | char *name = NULL; | |
7373 | if (length > 1 | |
7374 | && s[length - 1] == '"' | |
7375 | && json_string_unescape(s + 1, length - 2, &name)) { | |
7376 | ofp_port = ofputil_port_map_get_number(port_map, name); | |
7377 | } | |
7378 | free(name); | |
7379 | } | |
7380 | if (ofp_port != OFPP_NONE) { | |
7381 | *portp = ofp_port; | |
7382 | return true; | |
7383 | } | |
7384 | ||
8010100b | 7385 | return false; |
39dc9082 | 7386 | } |
39dc9082 BP |
7387 | } |
7388 | ||
50f96b10 BP |
7389 | const char * |
7390 | ofputil_port_get_reserved_name(ofp_port_t port) | |
7391 | { | |
7392 | switch (port) { | |
7393 | #define OFPUTIL_NAMED_PORT(NAME) case OFPP_##NAME: return #NAME; | |
7394 | OFPUTIL_NAMED_PORTS | |
7395 | #undef OFPUTIL_NAMED_PORT | |
7396 | ||
7397 | default: | |
7398 | return NULL; | |
7399 | } | |
7400 | } | |
7401 | ||
7402 | /* A port name doesn't need to be quoted if it is alphanumeric and starts with | |
7403 | * a letter. */ | |
7404 | static bool | |
7405 | port_name_needs_quotes(const char *port_name) | |
7406 | { | |
7407 | if (!isalpha((unsigned char) port_name[0])) { | |
7408 | return true; | |
7409 | } | |
7410 | ||
7411 | for (const char *p = port_name + 1; *p; p++) { | |
7412 | if (!isalnum((unsigned char) *p)) { | |
7413 | return true; | |
7414 | } | |
7415 | } | |
7416 | return false; | |
7417 | } | |
7418 | ||
7419 | static void | |
7420 | put_port_name(const char *port_name, struct ds *s) | |
7421 | { | |
7422 | if (port_name_needs_quotes(port_name)) { | |
7423 | json_string_escape(port_name, s); | |
7424 | } else { | |
7425 | ds_put_cstr(s, port_name); | |
7426 | } | |
7427 | } | |
7428 | ||
39dc9082 BP |
7429 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. |
7430 | * Most ports' string representation is just the port number, but for special | |
7431 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
7432 | void | |
50f96b10 BP |
7433 | ofputil_format_port(ofp_port_t port, const struct ofputil_port_map *port_map, |
7434 | struct ds *s) | |
39dc9082 | 7435 | { |
50f96b10 BP |
7436 | const char *reserved_name = ofputil_port_get_reserved_name(port); |
7437 | if (reserved_name) { | |
7438 | ds_put_cstr(s, reserved_name); | |
7439 | return; | |
7440 | } | |
28b11432 | 7441 | |
50f96b10 BP |
7442 | const char *port_name = ofputil_port_map_get_name(port_map, port); |
7443 | if (port_name) { | |
7444 | put_port_name(port_name, s); | |
7445 | return; | |
7446 | } | |
7447 | ||
7448 | ds_put_format(s, "%"PRIu32, port); | |
28b11432 | 7449 | } |
39dc9082 | 7450 | |
28b11432 BP |
7451 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
7452 | * representation of OpenFlow port number 'port'. Most ports are represented | |
7453 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
7454 | * by name, e.g. "LOCAL". */ | |
7455 | void | |
7456 | ofputil_port_to_string(ofp_port_t port, | |
50f96b10 BP |
7457 | const struct ofputil_port_map *port_map, |
7458 | char *namebuf, size_t bufsize) | |
28b11432 | 7459 | { |
50f96b10 BP |
7460 | const char *reserved_name = ofputil_port_get_reserved_name(port); |
7461 | if (reserved_name) { | |
7462 | ovs_strlcpy(namebuf, reserved_name, bufsize); | |
7463 | return; | |
7464 | } | |
39dc9082 | 7465 | |
50f96b10 BP |
7466 | const char *port_name = ofputil_port_map_get_name(port_map, port); |
7467 | if (port_name) { | |
7468 | struct ds s = DS_EMPTY_INITIALIZER; | |
7469 | put_port_name(port_name, &s); | |
7470 | ovs_strlcpy(namebuf, ds_cstr(&s), bufsize); | |
7471 | ds_destroy(&s); | |
7472 | return; | |
39dc9082 | 7473 | } |
50f96b10 BP |
7474 | |
7475 | snprintf(namebuf, bufsize, "%"PRIu32, port); | |
39dc9082 | 7476 | } |
50f96b10 BP |
7477 | \f |
7478 | /* ofputil_port_map. */ | |
7479 | struct ofputil_port_map_node { | |
7480 | struct hmap_node name_node; | |
7481 | struct hmap_node number_node; | |
7482 | ofp_port_t ofp_port; /* Port number. */ | |
7483 | char *name; /* Port name. */ | |
7484 | ||
7485 | /* OpenFlow doesn't require port names to be unique, although that's the | |
7486 | * only sensible way. However, even in Open vSwitch it's possible for two | |
7487 | * ports to appear to have the same name if their names are longer than the | |
7488 | * maximum length supported by a given version of OpenFlow. So, we guard | |
7489 | * against duplicate names to avoid giving unexpected results in this | |
7490 | * corner case. | |
7491 | * | |
7492 | * OpenFlow does require port numbers to be unique. We check for duplicate | |
7493 | * ports numbers just in case a switch has a bug. */ | |
7494 | bool duplicate; | |
7495 | }; | |
39dc9082 | 7496 | |
50f96b10 BP |
7497 | void |
7498 | ofputil_port_map_init(struct ofputil_port_map *map) | |
7499 | { | |
7500 | hmap_init(&map->by_name); | |
7501 | hmap_init(&map->by_number); | |
7502 | } | |
7503 | ||
7504 | static struct ofputil_port_map_node * | |
7505 | ofputil_port_map_find_by_name(const struct ofputil_port_map *map, | |
7506 | const char *name) | |
7507 | { | |
7508 | struct ofputil_port_map_node *node; | |
7509 | ||
7510 | HMAP_FOR_EACH_WITH_HASH (node, name_node, hash_string(name, 0), | |
7511 | &map->by_name) { | |
7512 | if (!strcmp(name, node->name)) { | |
7513 | return node; | |
7514 | } | |
7515 | } | |
7516 | return NULL; | |
7517 | } | |
7518 | ||
7519 | static struct ofputil_port_map_node * | |
7520 | ofputil_port_map_find_by_number(const struct ofputil_port_map *map, | |
7521 | ofp_port_t ofp_port) | |
7522 | { | |
7523 | struct ofputil_port_map_node *node; | |
7524 | ||
7525 | HMAP_FOR_EACH_IN_BUCKET (node, number_node, hash_ofp_port(ofp_port), | |
7526 | &map->by_number) { | |
7527 | if (node->ofp_port == ofp_port) { | |
7528 | return node; | |
7529 | } | |
7530 | } | |
7531 | return NULL; | |
7532 | } | |
7533 | ||
7534 | void | |
7535 | ofputil_port_map_put(struct ofputil_port_map *map, | |
7536 | ofp_port_t ofp_port, const char *name) | |
7537 | { | |
7538 | struct ofputil_port_map_node *node; | |
7539 | ||
7540 | /* Look for duplicate name. */ | |
7541 | node = ofputil_port_map_find_by_name(map, name); | |
7542 | if (node) { | |
7543 | if (node->ofp_port != ofp_port) { | |
7544 | node->duplicate = true; | |
7545 | } | |
7546 | return; | |
7547 | } | |
7548 | ||
7549 | /* Look for duplicate number. */ | |
7550 | node = ofputil_port_map_find_by_number(map, ofp_port); | |
7551 | if (node) { | |
7552 | node->duplicate = true; | |
7553 | return; | |
7554 | } | |
7555 | ||
7556 | /* Add new node. */ | |
7557 | node = xmalloc(sizeof *node); | |
7558 | hmap_insert(&map->by_number, &node->number_node, hash_ofp_port(ofp_port)); | |
7559 | hmap_insert(&map->by_name, &node->name_node, hash_string(name, 0)); | |
7560 | node->ofp_port = ofp_port; | |
7561 | node->name = xstrdup(name); | |
7562 | node->duplicate = false; | |
7563 | } | |
7564 | ||
7565 | const char * | |
7566 | ofputil_port_map_get_name(const struct ofputil_port_map *map, | |
7567 | ofp_port_t ofp_port) | |
7568 | { | |
7569 | struct ofputil_port_map_node *node | |
7570 | = map ? ofputil_port_map_find_by_number(map, ofp_port) : NULL; | |
7571 | return node && !node->duplicate ? node->name : NULL; | |
7572 | } | |
7573 | ||
7574 | ofp_port_t | |
7575 | ofputil_port_map_get_number(const struct ofputil_port_map *map, | |
7576 | const char *name) | |
7577 | { | |
7578 | struct ofputil_port_map_node *node | |
7579 | = map ? ofputil_port_map_find_by_name(map, name) : NULL; | |
7580 | return node && !node->duplicate ? node->ofp_port : OFPP_NONE; | |
7581 | } | |
7582 | ||
7583 | void | |
7584 | ofputil_port_map_destroy(struct ofputil_port_map *map) | |
7585 | { | |
7586 | if (map) { | |
7587 | struct ofputil_port_map_node *node, *next; | |
7588 | ||
7589 | HMAP_FOR_EACH_SAFE (node, next, name_node, &map->by_name) { | |
7590 | hmap_remove(&map->by_name, &node->name_node); | |
7591 | hmap_remove(&map->by_number, &node->number_node); | |
7592 | free(node->name); | |
7593 | free(node); | |
7594 | } | |
7595 | hmap_destroy(&map->by_name); | |
7596 | hmap_destroy(&map->by_number); | |
7597 | } | |
7598 | } | |
7599 | \f | |
7395c052 NZ |
7600 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
7601 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
7602 | * (either "ANY" or "ALL"). | |
7603 | * | |
7604 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
7605 | * name. */ | |
7606 | bool | |
7607 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
7608 | { | |
7609 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 7610 | *group_idp = OFPG_ANY; |
7395c052 | 7611 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 7612 | *group_idp = OFPG_ALL; |
7395c052 NZ |
7613 | } else if (!str_to_uint(s, 10, group_idp)) { |
7614 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
7615 | "32-bit nonnegative integers or the keywords ANY or " | |
7616 | "ALL.)", s); | |
7617 | return false; | |
7618 | } | |
7619 | ||
7620 | return true; | |
7621 | } | |
7622 | ||
7623 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
7624 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 7625 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
7626 | void |
7627 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
7628 | { | |
7629 | char name[MAX_GROUP_NAME_LEN]; | |
7630 | ||
7631 | ofputil_group_to_string(group_id, name, sizeof name); | |
7632 | ds_put_cstr(s, name); | |
7633 | } | |
7634 | ||
7635 | ||
7636 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
7637 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 7638 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
7639 | * by name, e.g. "ALL". */ |
7640 | void | |
7641 | ofputil_group_to_string(uint32_t group_id, | |
7642 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
7643 | { | |
7644 | switch (group_id) { | |
30ef36c6 | 7645 | case OFPG_ALL: |
7395c052 NZ |
7646 | ovs_strlcpy(namebuf, "ALL", bufsize); |
7647 | break; | |
7648 | ||
30ef36c6 | 7649 | case OFPG_ANY: |
7395c052 NZ |
7650 | ovs_strlcpy(namebuf, "ANY", bufsize); |
7651 | break; | |
7652 | ||
7653 | default: | |
7654 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
7655 | break; | |
7656 | } | |
7657 | } | |
7658 | ||
2be393ed JP |
7659 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
7660 | * 'ofp_version', tries to pull the first element from the array. If | |
7661 | * successful, initializes '*pp' with an abstract representation of the | |
7662 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
7663 | * On an error, returns a positive OFPERR_* value. */ | |
7664 | int | |
2e3fa633 | 7665 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
7666 | struct ofputil_phy_port *pp) |
7667 | { | |
8c3cc785 BP |
7668 | memset(pp, 0, sizeof *pp); |
7669 | ||
2e3fa633 SH |
7670 | switch (ofp_version) { |
7671 | case OFP10_VERSION: { | |
2be393ed JP |
7672 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
7673 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
7674 | } |
7675 | case OFP11_VERSION: | |
2e1ae200 JR |
7676 | case OFP12_VERSION: |
7677 | case OFP13_VERSION: { | |
2be393ed JP |
7678 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
7679 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
7680 | } | |
c37c0382 | 7681 | case OFP14_VERSION: |
42dccab5 | 7682 | case OFP15_VERSION: |
6fd6ed71 | 7683 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2f2b904f BP |
7684 | case OFP16_VERSION: |
7685 | return b->size ? ofputil_pull_ofp16_port(pp, b) : EOF; | |
2e3fa633 | 7686 | default: |
428b2edd | 7687 | OVS_NOT_REACHED(); |
2e3fa633 | 7688 | } |
2be393ed JP |
7689 | } |
7690 | ||
3cbd9931 | 7691 | static void |
81a76618 | 7692 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
7693 | { |
7694 | enum { | |
7695 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
7696 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
7697 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 7698 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
7699 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
7700 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 7701 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
7702 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
7703 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
3d4b2e6e | 7704 | MAY_ETHER = 1 << 9, /* dl_src, dl_dst */ |
b459a924 BP |
7705 | } may_match; |
7706 | ||
3d4b2e6e JS |
7707 | struct flow_wildcards wc = match->wc; |
7708 | ovs_be16 dl_type; | |
b459a924 BP |
7709 | |
7710 | /* Figure out what fields may be matched. */ | |
3d4b2e6e JS |
7711 | /* Check the packet_type first and extract dl_type. */ |
7712 | if (wc.masks.packet_type == 0 || match_has_default_packet_type(match)) { | |
7713 | may_match = MAY_ETHER; | |
7714 | dl_type = match->flow.dl_type; | |
7715 | } else if (wc.masks.packet_type == OVS_BE32_MAX && | |
7716 | pt_ns(match->flow.packet_type) == OFPHTN_ETHERTYPE) { | |
7717 | may_match = 0; | |
7718 | dl_type = pt_ns_type_be(match->flow.packet_type); | |
7719 | } else { | |
7720 | may_match = 0; | |
7721 | dl_type = 0; | |
7722 | } | |
7723 | if (dl_type == htons(ETH_TYPE_IP)) { | |
7724 | may_match |= MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; | |
81a76618 BP |
7725 | if (match->flow.nw_proto == IPPROTO_TCP || |
7726 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 7727 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 7728 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
7729 | may_match |= MAY_TP_ADDR; |
7730 | } | |
3d4b2e6e JS |
7731 | } else if (dl_type == htons(ETH_TYPE_IPV6)) { |
7732 | may_match |= MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; | |
81a76618 | 7733 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
7734 | match->flow.nw_proto == IPPROTO_UDP || |
7735 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 7736 | may_match |= MAY_TP_ADDR; |
81a76618 | 7737 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 7738 | may_match |= MAY_TP_ADDR; |
81a76618 | 7739 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 7740 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 7741 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
7742 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
7743 | } | |
7744 | } | |
3d4b2e6e JS |
7745 | } else if (dl_type == htons(ETH_TYPE_ARP) || |
7746 | dl_type == htons(ETH_TYPE_RARP)) { | |
7747 | may_match |= MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; | |
7748 | } else if (eth_type_mpls(dl_type)) { | |
7749 | may_match |= MAY_MPLS; | |
b459a924 BP |
7750 | } |
7751 | ||
7752 | /* Clear the fields that may not be matched. */ | |
3d4b2e6e JS |
7753 | if (!(may_match & MAY_ETHER)) { |
7754 | wc.masks.dl_src = wc.masks.dl_dst = eth_addr_zero; | |
7755 | } | |
b459a924 | 7756 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 7757 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
7758 | } |
7759 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 7760 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
7761 | } |
7762 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 7763 | wc.masks.nw_proto = 0; |
b459a924 | 7764 | } |
9e44d715 | 7765 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
7766 | wc.masks.nw_tos = 0; |
7767 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
7768 | } |
7769 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 7770 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
7771 | } |
7772 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 7773 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 7774 | } |
d78477ec | 7775 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
7776 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
7777 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
7778 | } |
7779 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 7780 | wc.masks.nd_target = in6addr_any; |
b459a924 | 7781 | } |
b02475c5 | 7782 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 7783 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 7784 | } |
b459a924 BP |
7785 | |
7786 | /* Log any changes. */ | |
81a76618 | 7787 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 7788 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
50f96b10 BP |
7789 | char *pre = (log |
7790 | ? match_to_string(match, NULL, OFP_DEFAULT_PRIORITY) | |
7791 | : NULL); | |
b459a924 | 7792 | |
81a76618 BP |
7793 | match->wc = wc; |
7794 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
7795 | |
7796 | if (log) { | |
50f96b10 | 7797 | char *post = match_to_string(match, NULL, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
7798 | VLOG_INFO("normalization changed ofp_match, details:"); |
7799 | VLOG_INFO(" pre: %s", pre); | |
7800 | VLOG_INFO("post: %s", post); | |
7801 | free(pre); | |
7802 | free(post); | |
7803 | } | |
fa37b408 | 7804 | } |
3f09c339 | 7805 | } |
26c112c2 | 7806 | |
81a76618 | 7807 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
7808 | * |
7809 | * 1. If the type of level N is known, then only the valid fields for that | |
7810 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 7811 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 7812 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 7813 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7814 | * IPv4 flow. |
7815 | * | |
7816 | * 2. If the type of level N is not known (or not understood by Open | |
7817 | * vSwitch), then no fields at all for that level may be specified. For | |
7818 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 7819 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7820 | * SCTP flow. |
7821 | * | |
81a76618 | 7822 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
7823 | * message. */ |
7824 | void | |
81a76618 | 7825 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 7826 | { |
81a76618 | 7827 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
7828 | } |
7829 | ||
81a76618 BP |
7830 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
7831 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
7832 | * sense for use on flows received from elsewhere (so that a bug in the program |
7833 | * that sent them can be reported and corrected). */ | |
7834 | void | |
81a76618 | 7835 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 7836 | { |
81a76618 | 7837 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
7838 | } |
7839 | ||
4a48cdfb BP |
7840 | static size_t |
7841 | parse_value(const char *s, const char *delimiters) | |
7842 | { | |
7843 | size_t n = 0; | |
7844 | ||
7845 | /* Iterate until we reach a delimiter. | |
7846 | * | |
7847 | * strchr(s, '\0') returns s+strlen(s), so this test handles the null | |
7848 | * terminator at the end of 's'. */ | |
7849 | while (!strchr(delimiters, s[n])) { | |
7850 | if (s[n] == '(') { | |
7851 | int level = 0; | |
7852 | do { | |
7853 | switch (s[n]) { | |
7854 | case '\0': | |
7855 | return n; | |
7856 | case '(': | |
7857 | level++; | |
7858 | break; | |
7859 | case ')': | |
7860 | level--; | |
7861 | break; | |
7862 | } | |
7863 | n++; | |
7864 | } while (level > 0); | |
7865 | } else { | |
7866 | n++; | |
7867 | } | |
7868 | } | |
7869 | return n; | |
7870 | } | |
7871 | ||
0ff22822 BP |
7872 | /* Parses a key or a key-value pair from '*stringp'. |
7873 | * | |
7874 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
7875 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
7876 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
7877 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
7878 | * terminators. Returns true. | |
7879 | * | |
7880 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
7881 | * NULL and returns false. */ | |
7882 | bool | |
7883 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
7884 | { | |
4a48cdfb BP |
7885 | /* Skip white space and delimiters. If that brings us to the end of the |
7886 | * input string, we are done and there are no more key-value pairs. */ | |
7887 | *stringp += strspn(*stringp, ", \t\r\n"); | |
7888 | if (**stringp == '\0') { | |
0ff22822 BP |
7889 | *keyp = *valuep = NULL; |
7890 | return false; | |
7891 | } | |
7892 | ||
4a48cdfb BP |
7893 | /* Extract the key and the delimiter that ends the key-value pair or begins |
7894 | * the value. Advance the input position past the key and delimiter. */ | |
7895 | char *key = *stringp; | |
7896 | size_t key_len = strcspn(key, ":=(, \t\r\n"); | |
7897 | char key_delim = key[key_len]; | |
7898 | key[key_len] = '\0'; | |
7899 | *stringp += key_len + (key_delim != '\0'); | |
0ff22822 | 7900 | |
4a48cdfb BP |
7901 | /* Figure out what delimiter ends the value: |
7902 | * | |
7903 | * - If key_delim is ":" or "=", the value extends until white space | |
7904 | * or a comma. | |
7905 | * | |
7906 | * - If key_delim is "(", the value extends until ")". | |
7907 | * | |
7908 | * If there is no value, we are done. */ | |
7909 | const char *value_delims; | |
7910 | if (key_delim == ':' || key_delim == '=') { | |
7911 | value_delims = ", \t\r\n"; | |
7912 | } else if (key_delim == '(') { | |
7913 | value_delims = ")"; | |
0ff22822 | 7914 | } else { |
4a48cdfb BP |
7915 | *keyp = key; |
7916 | *valuep = key + key_len; /* Empty string. */ | |
7917 | return true; | |
0ff22822 | 7918 | } |
0ff22822 | 7919 | |
4a48cdfb BP |
7920 | /* Extract the value. Advance the input position past the value and |
7921 | * delimiter. */ | |
7922 | char *value = *stringp; | |
7923 | size_t value_len = parse_value(value, value_delims); | |
7924 | char value_delim = value[value_len]; | |
7925 | value[value_len] = '\0'; | |
7926 | *stringp += value_len + (value_delim != '\0'); | |
7927 | ||
0ff22822 BP |
7928 | *keyp = key; |
7929 | *valuep = value; | |
7930 | return true; | |
7931 | } | |
f8e4867e SH |
7932 | |
7933 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7934 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7935 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7936 | struct ofpbuf * | |
4e022ec0 | 7937 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7938 | { |
7939 | struct ofpbuf *request; | |
7940 | ||
7941 | switch (ofp_version) { | |
7942 | case OFP10_VERSION: { | |
7943 | struct ofp10_port_stats_request *req; | |
7944 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7945 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7946 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7947 | break; |
7948 | } | |
7949 | case OFP11_VERSION: | |
2e1ae200 | 7950 | case OFP12_VERSION: |
c37c0382 | 7951 | case OFP13_VERSION: |
42dccab5 | 7952 | case OFP14_VERSION: |
b79d45a1 BP |
7953 | case OFP15_VERSION: |
7954 | case OFP16_VERSION: { | |
f8e4867e SH |
7955 | struct ofp11_port_stats_request *req; |
7956 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7957 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7958 | req->port_no = ofputil_port_to_ofp11(port); | |
7959 | break; | |
7960 | } | |
7961 | default: | |
428b2edd | 7962 | OVS_NOT_REACHED(); |
f8e4867e SH |
7963 | } |
7964 | ||
7965 | return request; | |
7966 | } | |
7967 | ||
7968 | static void | |
7969 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7970 | struct ofp10_port_stats *ps10) | |
7971 | { | |
4e022ec0 | 7972 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7973 | memset(ps10->pad, 0, sizeof ps10->pad); |
7974 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7975 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7976 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7977 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7978 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7979 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7980 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7981 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7982 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7983 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7984 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7985 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7986 | } | |
7987 | ||
7988 | static void | |
7989 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7990 | struct ofp11_port_stats *ps11) | |
7991 | { | |
7992 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7993 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7994 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7995 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7996 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7997 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7998 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7999 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
8000 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
8001 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
8002 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
8003 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
8004 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
8005 | ps11->collisions = htonll(ops->stats.collisions); | |
8006 | } | |
8007 | ||
2e1ae200 JR |
8008 | static void |
8009 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
8010 | struct ofp13_port_stats *ps13) | |
8011 | { | |
8012 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
8013 | ps13->duration_sec = htonl(ops->duration_sec); |
8014 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
8015 | } |
8016 | ||
5469537b BP |
8017 | static void |
8018 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 8019 | struct ovs_list *replies) |
5469537b BP |
8020 | { |
8021 | struct ofp14_port_stats_prop_ethernet *eth; | |
d6e3feb5 | 8022 | struct intel_port_stats_rfc2819 *stats_rfc2819; |
5469537b BP |
8023 | struct ofp14_port_stats *ps14; |
8024 | struct ofpbuf *reply; | |
8025 | ||
d6e3feb5 | 8026 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth + |
8027 | sizeof *stats_rfc2819); | |
5469537b BP |
8028 | |
8029 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
d6e3feb5 | 8030 | ps14->length = htons(sizeof *ps14 + sizeof *eth + |
8031 | sizeof *stats_rfc2819); | |
5469537b BP |
8032 | memset(ps14->pad, 0, sizeof ps14->pad); |
8033 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
8034 | ps14->duration_sec = htonl(ops->duration_sec); | |
8035 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
8036 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
8037 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
8038 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
8039 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
8040 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
8041 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
8042 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
8043 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
8044 | ||
303721ee | 8045 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
8046 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
8047 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
8048 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
8049 | eth->collisions = htonll(ops->stats.collisions); | |
d6e3feb5 | 8050 | |
8051 | uint64_t prop_type = OFPPROP_EXP(INTEL_VENDOR_ID, | |
8052 | INTEL_PORT_STATS_RFC2819); | |
8053 | ||
8054 | stats_rfc2819 = ofpprop_put_zeros(reply, prop_type, | |
8055 | sizeof *stats_rfc2819); | |
8056 | ||
8057 | memset(stats_rfc2819->pad, 0, sizeof stats_rfc2819->pad); | |
8058 | stats_rfc2819->rx_1_to_64_packets = htonll(ops->stats.rx_1_to_64_packets); | |
8059 | stats_rfc2819->rx_65_to_127_packets = | |
8060 | htonll(ops->stats.rx_65_to_127_packets); | |
8061 | stats_rfc2819->rx_128_to_255_packets = | |
8062 | htonll(ops->stats.rx_128_to_255_packets); | |
8063 | stats_rfc2819->rx_256_to_511_packets = | |
8064 | htonll(ops->stats.rx_256_to_511_packets); | |
8065 | stats_rfc2819->rx_512_to_1023_packets = | |
8066 | htonll(ops->stats.rx_512_to_1023_packets); | |
8067 | stats_rfc2819->rx_1024_to_1522_packets = | |
8068 | htonll(ops->stats.rx_1024_to_1522_packets); | |
8069 | stats_rfc2819->rx_1523_to_max_packets = | |
8070 | htonll(ops->stats.rx_1523_to_max_packets); | |
8071 | ||
8072 | stats_rfc2819->tx_1_to_64_packets = htonll(ops->stats.tx_1_to_64_packets); | |
8073 | stats_rfc2819->tx_65_to_127_packets = | |
8074 | htonll(ops->stats.tx_65_to_127_packets); | |
8075 | stats_rfc2819->tx_128_to_255_packets = | |
8076 | htonll(ops->stats.tx_128_to_255_packets); | |
8077 | stats_rfc2819->tx_256_to_511_packets = | |
8078 | htonll(ops->stats.tx_256_to_511_packets); | |
8079 | stats_rfc2819->tx_512_to_1023_packets = | |
8080 | htonll(ops->stats.tx_512_to_1023_packets); | |
8081 | stats_rfc2819->tx_1024_to_1522_packets = | |
8082 | htonll(ops->stats.tx_1024_to_1522_packets); | |
8083 | stats_rfc2819->tx_1523_to_max_packets = | |
8084 | htonll(ops->stats.tx_1523_to_max_packets); | |
8085 | ||
8086 | stats_rfc2819->tx_multicast_packets = | |
8087 | htonll(ops->stats.tx_multicast_packets); | |
8088 | stats_rfc2819->rx_broadcast_packets = | |
8089 | htonll(ops->stats.rx_broadcast_packets); | |
8090 | stats_rfc2819->tx_broadcast_packets = | |
8091 | htonll(ops->stats.tx_broadcast_packets); | |
8092 | stats_rfc2819->rx_undersized_errors = | |
8093 | htonll(ops->stats.rx_undersized_errors); | |
8094 | stats_rfc2819->rx_oversize_errors = | |
8095 | htonll(ops->stats.rx_oversize_errors); | |
8096 | stats_rfc2819->rx_fragmented_errors = | |
8097 | htonll(ops->stats.rx_fragmented_errors); | |
8098 | stats_rfc2819->rx_jabber_errors = | |
8099 | htonll(ops->stats.rx_jabber_errors); | |
5469537b | 8100 | } |
2e1ae200 | 8101 | |
ad4c35fe | 8102 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 8103 | void |
ca6ba700 | 8104 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
8105 | const struct ofputil_port_stats *ops) |
8106 | { | |
e28ac5cf | 8107 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
8108 | case OFP13_VERSION: { |
8109 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
8110 | ofputil_port_stats_to_ofp13(ops, reply); | |
8111 | break; | |
8112 | } | |
f8e4867e SH |
8113 | case OFP12_VERSION: |
8114 | case OFP11_VERSION: { | |
8115 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
8116 | ofputil_port_stats_to_ofp11(ops, reply); | |
8117 | break; | |
8118 | } | |
8119 | ||
8120 | case OFP10_VERSION: { | |
8121 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
8122 | ofputil_port_stats_to_ofp10(ops, reply); | |
8123 | break; | |
8124 | } | |
8125 | ||
c37c0382 | 8126 | case OFP14_VERSION: |
42dccab5 | 8127 | case OFP15_VERSION: |
b79d45a1 | 8128 | case OFP16_VERSION: |
5469537b | 8129 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
8130 | break; |
8131 | ||
f8e4867e | 8132 | default: |
428b2edd | 8133 | OVS_NOT_REACHED(); |
f8e4867e SH |
8134 | } |
8135 | } | |
8136 | ||
8137 | static enum ofperr | |
8138 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
8139 | const struct ofp10_port_stats *ps10) | |
8140 | { | |
f8e4867e | 8141 | |
4e022ec0 | 8142 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
8143 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
8144 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
8145 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
8146 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
8147 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
8148 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
8149 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
8150 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
8151 | ops->stats.rx_frame_errors = | |
8152 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
8153 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
8154 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
8155 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 8156 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
8157 | |
8158 | return 0; | |
8159 | } | |
8160 | ||
8161 | static enum ofperr | |
8162 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
8163 | const struct ofp11_port_stats *ps11) | |
8164 | { | |
8165 | enum ofperr error; | |
8166 | ||
f8e4867e SH |
8167 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); |
8168 | if (error) { | |
8169 | return error; | |
8170 | } | |
8171 | ||
8172 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
8173 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
8174 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
8175 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
8176 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
8177 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
8178 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
8179 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
8180 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
8181 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
8182 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
8183 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 8184 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
8185 | |
8186 | return 0; | |
8187 | } | |
8188 | ||
2e1ae200 JR |
8189 | static enum ofperr |
8190 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
8191 | const struct ofp13_port_stats *ps13) | |
8192 | { | |
65e0be10 | 8193 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 8194 | if (!error) { |
65e0be10 BP |
8195 | ops->duration_sec = ntohl(ps13->duration_sec); |
8196 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 8197 | } |
2e1ae200 JR |
8198 | return error; |
8199 | } | |
8200 | ||
5469537b BP |
8201 | static enum ofperr |
8202 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
8203 | struct ofputil_port_stats *ops) | |
be0c30df | 8204 | { |
6fd6ed71 | 8205 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 8206 | |
6fd6ed71 | 8207 | if (payload->size != sizeof *eth) { |
5469537b BP |
8208 | return OFPERR_OFPBPC_BAD_LEN; |
8209 | } | |
8210 | ||
8211 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
8212 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
8213 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
8214 | ops->stats.collisions = ntohll(eth->collisions); | |
8215 | ||
8216 | return 0; | |
8217 | } | |
8218 | ||
d6e3feb5 | 8219 | static enum ofperr |
8220 | parse_intel_port_stats_rfc2819_property(const struct ofpbuf *payload, | |
8221 | struct ofputil_port_stats *ops) | |
8222 | { | |
8223 | const struct intel_port_stats_rfc2819 *rfc2819 = payload->data; | |
8224 | ||
8225 | if (payload->size != sizeof *rfc2819) { | |
8226 | return OFPERR_OFPBPC_BAD_LEN; | |
8227 | } | |
8228 | ops->stats.rx_1_to_64_packets = ntohll(rfc2819->rx_1_to_64_packets); | |
8229 | ops->stats.rx_65_to_127_packets = ntohll(rfc2819->rx_65_to_127_packets); | |
8230 | ops->stats.rx_128_to_255_packets = ntohll(rfc2819->rx_128_to_255_packets); | |
8231 | ops->stats.rx_256_to_511_packets = ntohll(rfc2819->rx_256_to_511_packets); | |
8232 | ops->stats.rx_512_to_1023_packets = | |
8233 | ntohll(rfc2819->rx_512_to_1023_packets); | |
8234 | ops->stats.rx_1024_to_1522_packets = | |
8235 | ntohll(rfc2819->rx_1024_to_1522_packets); | |
8236 | ops->stats.rx_1523_to_max_packets = | |
8237 | ntohll(rfc2819->rx_1523_to_max_packets); | |
8238 | ||
8239 | ops->stats.tx_1_to_64_packets = ntohll(rfc2819->tx_1_to_64_packets); | |
8240 | ops->stats.tx_65_to_127_packets = ntohll(rfc2819->tx_65_to_127_packets); | |
8241 | ops->stats.tx_128_to_255_packets = ntohll(rfc2819->tx_128_to_255_packets); | |
8242 | ops->stats.tx_256_to_511_packets = ntohll(rfc2819->tx_256_to_511_packets); | |
8243 | ops->stats.tx_512_to_1023_packets = | |
8244 | ntohll(rfc2819->tx_512_to_1023_packets); | |
8245 | ops->stats.tx_1024_to_1522_packets = | |
8246 | ntohll(rfc2819->tx_1024_to_1522_packets); | |
8247 | ops->stats.tx_1523_to_max_packets = | |
8248 | ntohll(rfc2819->tx_1523_to_max_packets); | |
8249 | ||
8250 | ops->stats.tx_multicast_packets = ntohll(rfc2819->tx_multicast_packets); | |
8251 | ops->stats.rx_broadcast_packets = ntohll(rfc2819->rx_broadcast_packets); | |
8252 | ops->stats.tx_broadcast_packets = ntohll(rfc2819->tx_broadcast_packets); | |
8253 | ops->stats.rx_undersized_errors = ntohll(rfc2819->rx_undersized_errors); | |
8254 | ||
8255 | ops->stats.rx_oversize_errors = ntohll(rfc2819->rx_oversize_errors); | |
8256 | ops->stats.rx_fragmented_errors = ntohll(rfc2819->rx_fragmented_errors); | |
8257 | ops->stats.rx_jabber_errors = ntohll(rfc2819->rx_jabber_errors); | |
8258 | ||
8259 | return 0; | |
8260 | } | |
8261 | ||
8262 | static enum ofperr | |
8263 | parse_intel_port_stats_property(const struct ofpbuf *payload, | |
8264 | uint32_t exp_type, | |
8265 | struct ofputil_port_stats *ops) | |
8266 | { | |
8267 | enum ofperr error; | |
8268 | ||
8269 | switch (exp_type) { | |
8270 | case INTEL_PORT_STATS_RFC2819: | |
8271 | error = parse_intel_port_stats_rfc2819_property(payload, ops); | |
8272 | break; | |
8273 | default: | |
8274 | error = OFPERR_OFPBPC_BAD_EXP_TYPE; | |
8275 | break; | |
8276 | } | |
8277 | ||
8278 | return error; | |
8279 | } | |
8280 | ||
5469537b BP |
8281 | static enum ofperr |
8282 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
8283 | struct ofpbuf *msg) | |
8284 | { | |
0a2869d5 | 8285 | const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14); |
5469537b BP |
8286 | if (!ps14) { |
8287 | return OFPERR_OFPBRC_BAD_LEN; | |
8288 | } | |
8289 | ||
0a2869d5 | 8290 | size_t len = ntohs(ps14->length); |
6fd6ed71 | 8291 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 8292 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 8293 | } |
5469537b | 8294 | len -= sizeof *ps14; |
5469537b | 8295 | |
0a2869d5 | 8296 | enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); |
5469537b BP |
8297 | if (error) { |
8298 | return error; | |
8299 | } | |
8300 | ||
8301 | ops->duration_sec = ntohl(ps14->duration_sec); | |
8302 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
8303 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
8304 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
8305 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
8306 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
8307 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
8308 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
8309 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
8310 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
d6e3feb5 | 8311 | |
5469537b | 8312 | |
0a2869d5 BP |
8313 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
8314 | len); | |
6fd6ed71 | 8315 | while (properties.size > 0) { |
5469537b BP |
8316 | struct ofpbuf payload; |
8317 | enum ofperr error; | |
d6e3feb5 | 8318 | uint64_t type = 0; |
5469537b | 8319 | |
c5562271 | 8320 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
8321 | if (error) { |
8322 | return error; | |
8323 | } | |
5469537b BP |
8324 | switch (type) { |
8325 | case OFPPSPT14_ETHERNET: | |
8326 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
8327 | break; | |
d6e3feb5 | 8328 | case OFPPROP_EXP(INTEL_VENDOR_ID, INTEL_PORT_STATS_RFC2819): |
8329 | error = parse_intel_port_stats_property(&payload, | |
8330 | INTEL_PORT_STATS_RFC2819, | |
8331 | ops); | |
8332 | break; | |
5469537b | 8333 | default: |
34a543e3 | 8334 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
8335 | break; |
8336 | } | |
8337 | ||
8338 | if (error) { | |
8339 | return error; | |
8340 | } | |
8341 | } | |
8342 | ||
8343 | return 0; | |
be0c30df | 8344 | } |
2e1ae200 | 8345 | |
f8e4867e SH |
8346 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
8347 | * message 'oh'. */ | |
8348 | size_t | |
8349 | ofputil_count_port_stats(const struct ofp_header *oh) | |
8350 | { | |
0a2869d5 | 8351 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
f8e4867e | 8352 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
8353 | |
8354 | for (size_t n = 0; ; n++) { | |
8355 | struct ofputil_port_stats ps; | |
8356 | if (ofputil_decode_port_stats(&ps, &b)) { | |
8357 | return n; | |
8358 | } | |
5469537b | 8359 | } |
f8e4867e SH |
8360 | } |
8361 | ||
8362 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
8363 | * ofputil_port_stats in 'ps'. | |
8364 | * | |
8365 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
8366 | * message. Calling this function multiple times for a single 'msg' iterates | |
8367 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8368 | * null and not modify them between calls. | |
8369 | * | |
8370 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8371 | * otherwise a positive errno value. */ | |
8372 | int | |
8373 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
8374 | { | |
8375 | enum ofperr error; | |
8376 | enum ofpraw raw; | |
8377 | ||
d6e3feb5 | 8378 | memset(&(ps->stats), 0xFF, sizeof (ps->stats)); |
8379 | ||
6fd6ed71 | 8380 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
8381 | : ofpraw_pull(&raw, msg)); |
8382 | if (error) { | |
8383 | return error; | |
8384 | } | |
8385 | ||
6fd6ed71 | 8386 | if (!msg->size) { |
f8e4867e | 8387 | return EOF; |
5469537b BP |
8388 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
8389 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
8390 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
8391 | const struct ofp13_port_stats *ps13; | |
2e1ae200 JR |
8392 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); |
8393 | if (!ps13) { | |
8394 | goto bad_len; | |
8395 | } | |
8396 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
8397 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
8398 | const struct ofp11_port_stats *ps11; | |
8399 | ||
8400 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
8401 | if (!ps11) { | |
2e1ae200 | 8402 | goto bad_len; |
f8e4867e SH |
8403 | } |
8404 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
8405 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
8406 | const struct ofp10_port_stats *ps10; | |
8407 | ||
8408 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
8409 | if (!ps10) { | |
2e1ae200 | 8410 | goto bad_len; |
f8e4867e SH |
8411 | } |
8412 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
8413 | } else { | |
428b2edd | 8414 | OVS_NOT_REACHED(); |
f8e4867e SH |
8415 | } |
8416 | ||
2e1ae200 | 8417 | bad_len: |
437d0d22 | 8418 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 8419 | "bytes at end", msg->size); |
2e1ae200 | 8420 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
8421 | } |
8422 | ||
8423 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
8424 | * port number and stores the latter in '*ofp10_port'. | |
8425 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8426 | enum ofperr | |
8427 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 8428 | ofp_port_t *ofp10_port) |
f8e4867e SH |
8429 | { |
8430 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 8431 | case OFP16_VERSION: |
42dccab5 | 8432 | case OFP15_VERSION: |
5469537b | 8433 | case OFP14_VERSION: |
2e1ae200 | 8434 | case OFP13_VERSION: |
f8e4867e SH |
8435 | case OFP12_VERSION: |
8436 | case OFP11_VERSION: { | |
8437 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
8438 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
8439 | } | |
8440 | ||
8441 | case OFP10_VERSION: { | |
8442 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 8443 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
8444 | return 0; |
8445 | } | |
8446 | ||
8447 | default: | |
428b2edd | 8448 | OVS_NOT_REACHED(); |
f8e4867e SH |
8449 | } |
8450 | } | |
64626975 | 8451 | |
fb8f22c1 BY |
8452 | static void |
8453 | ofputil_ipfix_stats_to_reply(const struct ofputil_ipfix_stats *ois, | |
8454 | struct nx_ipfix_stats_reply *reply) | |
8455 | { | |
8456 | reply->collector_set_id = htonl(ois->collector_set_id); | |
8457 | reply->total_flows = htonll(ois->total_flows); | |
8458 | reply->current_flows = htonll(ois->current_flows); | |
8459 | reply->pkts = htonll(ois->pkts); | |
8460 | reply->ipv4_pkts = htonll(ois->ipv4_pkts); | |
8461 | reply->ipv6_pkts = htonll(ois->ipv6_pkts); | |
8462 | reply->error_pkts = htonll(ois->error_pkts); | |
8463 | reply->ipv4_error_pkts = htonll(ois->ipv4_error_pkts); | |
8464 | reply->ipv6_error_pkts = htonll(ois->ipv6_error_pkts); | |
8465 | reply->tx_pkts = htonll(ois->tx_pkts); | |
8466 | reply->tx_errors = htonll(ois->tx_errors); | |
05e81316 | 8467 | memset(reply->pad, 0, sizeof reply->pad); |
fb8f22c1 BY |
8468 | } |
8469 | ||
8470 | /* Encode a ipfix stat for 'ois' and append it to 'replies'. */ | |
8471 | void | |
8472 | ofputil_append_ipfix_stat(struct ovs_list *replies, | |
8473 | const struct ofputil_ipfix_stats *ois) | |
8474 | { | |
8475 | struct nx_ipfix_stats_reply *reply = ofpmp_append(replies, sizeof *reply); | |
8476 | ofputil_ipfix_stats_to_reply(ois, reply); | |
8477 | } | |
8478 | ||
8479 | static enum ofperr | |
8480 | ofputil_ipfix_stats_from_nx(struct ofputil_ipfix_stats *is, | |
8481 | const struct nx_ipfix_stats_reply *reply) | |
8482 | { | |
8483 | is->collector_set_id = ntohl(reply->collector_set_id); | |
8484 | is->total_flows = ntohll(reply->total_flows); | |
8485 | is->current_flows = ntohll(reply->current_flows); | |
8486 | is->pkts = ntohll(reply->pkts); | |
8487 | is->ipv4_pkts = ntohll(reply->ipv4_pkts); | |
8488 | is->ipv6_pkts = ntohll(reply->ipv6_pkts); | |
8489 | is->error_pkts = ntohll(reply->error_pkts); | |
8490 | is->ipv4_error_pkts = ntohll(reply->ipv4_error_pkts); | |
8491 | is->ipv6_error_pkts = ntohll(reply->ipv6_error_pkts); | |
8492 | is->tx_pkts = ntohll(reply->tx_pkts); | |
8493 | is->tx_errors = ntohll(reply->tx_errors); | |
8494 | ||
8495 | return 0; | |
8496 | } | |
8497 | ||
8498 | int | |
8499 | ofputil_pull_ipfix_stats(struct ofputil_ipfix_stats *is, struct ofpbuf *msg) | |
8500 | { | |
8501 | enum ofperr error; | |
8502 | enum ofpraw raw; | |
8503 | ||
8504 | memset(is, 0xFF, sizeof (*is)); | |
8505 | ||
8506 | error = (msg->header ? ofpraw_decode(&raw, msg->header) | |
8507 | : ofpraw_pull(&raw, msg)); | |
8508 | if (error) { | |
8509 | return error; | |
8510 | } | |
8511 | ||
8512 | if (!msg->size) { | |
8513 | return EOF; | |
8514 | } else if (raw == OFPRAW_NXST_IPFIX_BRIDGE_REPLY || | |
8515 | raw == OFPRAW_NXST_IPFIX_FLOW_REPLY) { | |
8516 | struct nx_ipfix_stats_reply *reply; | |
8517 | ||
8518 | reply = ofpbuf_try_pull(msg, sizeof *reply); | |
8519 | return ofputil_ipfix_stats_from_nx(is, reply); | |
8520 | } else { | |
8521 | OVS_NOT_REACHED(); | |
8522 | } | |
8523 | } | |
8524 | ||
8525 | ||
8526 | /* Returns the number of ipfix stats elements in | |
8527 | * OFPTYPE_IPFIX_BRIDGE_STATS_REPLY or OFPTYPE_IPFIX_FLOW_STATS_REPLY | |
8528 | * message 'oh'. */ | |
8529 | size_t | |
8530 | ofputil_count_ipfix_stats(const struct ofp_header *oh) | |
8531 | { | |
8532 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
8533 | ofpraw_pull_assert(&b); | |
8534 | ||
8535 | return b.size / sizeof(struct ofputil_ipfix_stats); | |
8536 | } | |
8537 | ||
7395c052 NZ |
8538 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
8539 | void | |
ca6ba700 | 8540 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 8541 | { |
5f03c983 | 8542 | struct ofputil_bucket *bucket; |
7395c052 | 8543 | |
5f03c983 | 8544 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
8545 | free(bucket->ofpacts); |
8546 | free(bucket); | |
8547 | } | |
8548 | } | |
8549 | ||
103b4866 SH |
8550 | /* Clones 'bucket' and its ofpacts data */ |
8551 | static struct ofputil_bucket * | |
8552 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
8553 | { | |
8554 | struct ofputil_bucket *new; | |
8555 | ||
8556 | new = xmemdup(bucket, sizeof *bucket); | |
8557 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
8558 | ||
8559 | return new; | |
8560 | } | |
8561 | ||
8562 | /* Clones each of the buckets in the list 'src' appending them | |
8563 | * in turn to 'dest' which should be an initialised list. | |
8564 | * An exception is that if the pointer value of a bucket in 'src' | |
8565 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
8566 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
8567 | * be cloned and appended to 'dest'. */ | |
8568 | void | |
ca6ba700 | 8569 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
8570 | const struct ofputil_bucket *skip) |
8571 | { | |
8572 | struct ofputil_bucket *bucket; | |
8573 | ||
8574 | LIST_FOR_EACH (bucket, list_node, src) { | |
8575 | struct ofputil_bucket *new_bucket; | |
8576 | ||
8577 | if (bucket == skip) { | |
8578 | continue; | |
8579 | } | |
8580 | ||
8581 | new_bucket = ofputil_bucket_clone_data(bucket); | |
417e7e66 | 8582 | ovs_list_push_back(dest, &new_bucket->list_node); |
103b4866 SH |
8583 | } |
8584 | } | |
8585 | ||
8586 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
8587 | * Returns the first bucket found or NULL if no buckets are found. */ | |
8588 | struct ofputil_bucket * | |
ca6ba700 | 8589 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
8590 | { |
8591 | struct ofputil_bucket *bucket; | |
8592 | ||
8593 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
8594 | return NULL; | |
8595 | } | |
8596 | ||
8597 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
8598 | if (bucket->bucket_id == bucket_id) { | |
8599 | return bucket; | |
8600 | } | |
8601 | } | |
8602 | ||
8603 | return NULL; | |
8604 | } | |
8605 | ||
8606 | /* Returns true if more than one bucket in the list 'buckets' | |
8607 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 8608 | bool |
ca6ba700 | 8609 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
8610 | { |
8611 | struct ofputil_bucket *i, *j; | |
8612 | ||
8613 | LIST_FOR_EACH (i, list_node, buckets) { | |
8614 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
8615 | if (i == j) { | |
8616 | break; | |
8617 | } | |
8618 | if (i->bucket_id == j->bucket_id) { | |
8619 | return true; | |
8620 | } | |
8621 | } | |
8622 | } | |
8623 | ||
8624 | return false; | |
8625 | } | |
8626 | ||
103b4866 SH |
8627 | /* Returns the bucket at the front of the list 'buckets'. |
8628 | * Undefined if 'buckets is empty. */ | |
8629 | struct ofputil_bucket * | |
ca6ba700 | 8630 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
8631 | { |
8632 | static struct ofputil_bucket *bucket; | |
8633 | ||
417e7e66 | 8634 | ASSIGN_CONTAINER(bucket, ovs_list_front(buckets), list_node); |
103b4866 SH |
8635 | |
8636 | return bucket; | |
8637 | } | |
8638 | ||
8639 | /* Returns the bucket at the back of the list 'buckets'. | |
8640 | * Undefined if 'buckets is empty. */ | |
8641 | struct ofputil_bucket * | |
ca6ba700 | 8642 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
8643 | { |
8644 | static struct ofputil_bucket *bucket; | |
8645 | ||
417e7e66 | 8646 | ASSIGN_CONTAINER(bucket, ovs_list_back(buckets), list_node); |
103b4866 SH |
8647 | |
8648 | return bucket; | |
8649 | } | |
8650 | ||
7395c052 NZ |
8651 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
8652 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
8653 | * for all groups.) | |
8654 | * | |
8655 | * Group statistics include packet and byte counts for each group. */ | |
8656 | struct ofpbuf * | |
8657 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
8658 | uint32_t group_id) | |
8659 | { | |
8660 | struct ofpbuf *request; | |
8661 | ||
8662 | switch (ofp_version) { | |
8663 | case OFP10_VERSION: | |
8664 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
8665 | "(\'-O OpenFlow11\')"); | |
8666 | case OFP11_VERSION: | |
8667 | case OFP12_VERSION: | |
c37c0382 | 8668 | case OFP13_VERSION: |
42dccab5 | 8669 | case OFP14_VERSION: |
b79d45a1 BP |
8670 | case OFP15_VERSION: |
8671 | case OFP16_VERSION: { | |
7395c052 NZ |
8672 | struct ofp11_group_stats_request *req; |
8673 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
8674 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8675 | req->group_id = htonl(group_id); | |
8676 | break; | |
8677 | } | |
8678 | default: | |
428b2edd | 8679 | OVS_NOT_REACHED(); |
7395c052 NZ |
8680 | } |
8681 | ||
8682 | return request; | |
8683 | } | |
8684 | ||
bc65c25a SH |
8685 | void |
8686 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
8687 | { | |
8688 | ofputil_bucket_list_destroy(&gd->buckets); | |
e8dba719 | 8689 | ofputil_group_properties_destroy(&gd->props); |
bc65c25a SH |
8690 | } |
8691 | ||
19187a71 BP |
8692 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
8693 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
8694 | * requested. */ | |
8695 | uint32_t | |
8696 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
8697 | { | |
0a2869d5 BP |
8698 | struct ofpbuf request = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
8699 | enum ofpraw raw = ofpraw_pull_assert(&request); | |
19187a71 BP |
8700 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { |
8701 | return OFPG_ALL; | |
8702 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
8703 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
8704 | return ntohl(*group_id); | |
8705 | } else { | |
8706 | OVS_NOT_REACHED(); | |
8707 | } | |
8708 | } | |
8709 | ||
7395c052 | 8710 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
8711 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
8712 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
8713 | * groups). | |
7395c052 NZ |
8714 | * |
8715 | * Group descriptions include the bucket and action configuration for each | |
8716 | * group. */ | |
8717 | struct ofpbuf * | |
19187a71 BP |
8718 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
8719 | uint32_t group_id) | |
7395c052 NZ |
8720 | { |
8721 | struct ofpbuf *request; | |
8722 | ||
8723 | switch (ofp_version) { | |
8724 | case OFP10_VERSION: | |
8725 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
8726 | "(\'-O OpenFlow11\')"); | |
8727 | case OFP11_VERSION: | |
8728 | case OFP12_VERSION: | |
c37c0382 AC |
8729 | case OFP13_VERSION: |
8730 | case OFP14_VERSION: | |
19187a71 BP |
8731 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
8732 | ofp_version, 0); | |
8733 | break; | |
b79d45a1 BP |
8734 | case OFP15_VERSION: |
8735 | case OFP16_VERSION: { | |
d4d3f33e | 8736 | struct ofp15_group_desc_request *req; |
19187a71 BP |
8737 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
8738 | ofp_version, 0); | |
d4d3f33e MT |
8739 | req = ofpbuf_put_zeros(request, sizeof *req); |
8740 | req->group_id = htonl(group_id); | |
7395c052 | 8741 | break; |
d4d3f33e | 8742 | } |
7395c052 | 8743 | default: |
428b2edd | 8744 | OVS_NOT_REACHED(); |
7395c052 NZ |
8745 | } |
8746 | ||
8747 | return request; | |
8748 | } | |
8749 | ||
dcbe78ad | 8750 | static void |
63759e71 AZ |
8751 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
8752 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8753 | { |
7395c052 NZ |
8754 | int i; |
8755 | ||
dcbe78ad AZ |
8756 | for (i = 0; i < gs->n_buckets; i++) { |
8757 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
8758 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 8759 | } |
7395c052 NZ |
8760 | } |
8761 | ||
8762 | static void | |
dcbe78ad | 8763 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
8764 | struct ofp11_group_stats *gs11, size_t length, |
8765 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8766 | { |
63759e71 AZ |
8767 | memset(gs11, 0, sizeof *gs11); |
8768 | gs11->length = htons(length); | |
8769 | gs11->group_id = htonl(gs->group_id); | |
8770 | gs11->ref_count = htonl(gs->ref_count); | |
8771 | gs11->packet_count = htonll(gs->packet_count); | |
8772 | gs11->byte_count = htonll(gs->byte_count); | |
8773 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 8774 | } |
7395c052 | 8775 | |
dcbe78ad AZ |
8776 | static void |
8777 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
8778 | struct ofp13_group_stats *gs13, size_t length, |
8779 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 8780 | { |
63759e71 | 8781 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
8782 | gs13->duration_sec = htonl(gs->duration_sec); |
8783 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 8784 | |
7395c052 NZ |
8785 | } |
8786 | ||
dcbe78ad | 8787 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
8788 | * replies already begun in 'replies' and appends it to the list. 'replies' |
8789 | * must have originally been initialized with ofpmp_init(). */ | |
8790 | void | |
ca6ba700 | 8791 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 8792 | const struct ofputil_group_stats *gs) |
7395c052 | 8793 | { |
63759e71 AZ |
8794 | size_t bucket_counter_size; |
8795 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 8796 | size_t length; |
7395c052 | 8797 | |
63759e71 AZ |
8798 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
8799 | ||
e28ac5cf | 8800 | switch (ofpmp_version(replies)) { |
7395c052 | 8801 | case OFP11_VERSION: |
dcbe78ad | 8802 | case OFP12_VERSION:{ |
63759e71 | 8803 | struct ofp11_group_stats *gs11; |
dcbe78ad | 8804 | |
63759e71 AZ |
8805 | length = sizeof *gs11 + bucket_counter_size; |
8806 | gs11 = ofpmp_append(replies, length); | |
8807 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
8808 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
8809 | break; |
8810 | } | |
7395c052 NZ |
8811 | |
8812 | case OFP13_VERSION: | |
42dccab5 | 8813 | case OFP14_VERSION: |
b79d45a1 BP |
8814 | case OFP15_VERSION: |
8815 | case OFP16_VERSION: { | |
63759e71 | 8816 | struct ofp13_group_stats *gs13; |
7395c052 | 8817 | |
63759e71 AZ |
8818 | length = sizeof *gs13 + bucket_counter_size; |
8819 | gs13 = ofpmp_append(replies, length); | |
8820 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
8821 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
8822 | break; |
8823 | } | |
c37c0382 | 8824 | |
7395c052 NZ |
8825 | case OFP10_VERSION: |
8826 | default: | |
428b2edd | 8827 | OVS_NOT_REACHED(); |
7395c052 NZ |
8828 | } |
8829 | } | |
7395c052 NZ |
8830 | /* Returns an OpenFlow group features request for OpenFlow version |
8831 | * 'ofp_version'. */ | |
8832 | struct ofpbuf * | |
8833 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
8834 | { | |
8835 | struct ofpbuf *request = NULL; | |
8836 | ||
8837 | switch (ofp_version) { | |
8838 | case OFP10_VERSION: | |
8839 | case OFP11_VERSION: | |
8840 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
8841 | "(\'-O OpenFlow12\')"); | |
8842 | case OFP12_VERSION: | |
c37c0382 AC |
8843 | case OFP13_VERSION: |
8844 | case OFP14_VERSION: | |
42dccab5 | 8845 | case OFP15_VERSION: |
b79d45a1 | 8846 | case OFP16_VERSION: |
7395c052 | 8847 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 8848 | ofp_version, 0); |
7395c052 | 8849 | break; |
7395c052 | 8850 | default: |
428b2edd | 8851 | OVS_NOT_REACHED(); |
7395c052 NZ |
8852 | } |
8853 | ||
8854 | return request; | |
8855 | } | |
8856 | ||
8857 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
8858 | * group features request 'request'. */ | |
8859 | struct ofpbuf * | |
8860 | ofputil_encode_group_features_reply( | |
8861 | const struct ofputil_group_features *features, | |
8862 | const struct ofp_header *request) | |
8863 | { | |
8864 | struct ofp12_group_features_stats *ogf; | |
8865 | struct ofpbuf *reply; | |
08d1e234 | 8866 | int i; |
7395c052 NZ |
8867 | |
8868 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
8869 | request->version, request->xid, 0); | |
8870 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
8871 | ogf->types = htonl(features->types); | |
8872 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
8873 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8874 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
8875 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
8876 | request->version); | |
8877 | } | |
7395c052 NZ |
8878 | |
8879 | return reply; | |
8880 | } | |
8881 | ||
8882 | /* Decodes group features reply 'oh' into 'features'. */ | |
8883 | void | |
8884 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
8885 | struct ofputil_group_features *features) | |
8886 | { | |
8887 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 8888 | int i; |
7395c052 NZ |
8889 | |
8890 | features->types = ntohl(ogf->types); | |
8891 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
8892 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8893 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
8894 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
8895 | ogf->actions[i], oh->version); | |
8896 | } | |
7395c052 NZ |
8897 | } |
8898 | ||
8899 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
8900 | * group ID and stores the latter in '*group_id'. | |
8901 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8902 | enum ofperr | |
8903 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
8904 | uint32_t *group_id) | |
8905 | { | |
8906 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
8907 | *group_id = ntohl(gsr11->group_id); | |
8908 | return 0; | |
8909 | } | |
8910 | ||
8911 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
8912 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
8913 | * caller to eventually free. | |
7395c052 NZ |
8914 | * |
8915 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
8916 | * Calling this function multiple times for a single 'msg' iterates through the | |
8917 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
8918 | * not modify them between calls. | |
8919 | * | |
8920 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8921 | * otherwise a positive errno value. */ | |
8922 | int | |
8923 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
8924 | struct ofputil_group_stats *gs) | |
8925 | { | |
8926 | struct ofp11_bucket_counter *obc; | |
8927 | struct ofp11_group_stats *ogs11; | |
8928 | enum ofpraw raw; | |
8929 | enum ofperr error; | |
8930 | size_t base_len; | |
8931 | size_t length; | |
8932 | size_t i; | |
8933 | ||
646b2a9c | 8934 | gs->bucket_stats = NULL; |
6fd6ed71 | 8935 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
8936 | : ofpraw_pull(&raw, msg)); |
8937 | if (error) { | |
8938 | return error; | |
8939 | } | |
8940 | ||
6fd6ed71 | 8941 | if (!msg->size) { |
7395c052 NZ |
8942 | return EOF; |
8943 | } | |
8944 | ||
8945 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
8946 | base_len = sizeof *ogs11; | |
8947 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
8948 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
8949 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
8950 | struct ofp13_group_stats *ogs13; | |
8951 | ||
8952 | base_len = sizeof *ogs13; | |
8953 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
8954 | if (ogs13) { | |
8955 | ogs11 = &ogs13->gs; | |
8956 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
8957 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
8958 | } else { | |
8959 | ogs11 = NULL; | |
8960 | } | |
8961 | } else { | |
428b2edd | 8962 | OVS_NOT_REACHED(); |
7395c052 NZ |
8963 | } |
8964 | ||
8965 | if (!ogs11) { | |
437d0d22 | 8966 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8967 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8968 | return OFPERR_OFPBRC_BAD_LEN; |
8969 | } | |
8970 | length = ntohs(ogs11->length); | |
8971 | if (length < sizeof base_len) { | |
34582733 | 8972 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
8973 | ofpraw_get_name(raw), length); |
8974 | return OFPERR_OFPBRC_BAD_LEN; | |
8975 | } | |
8976 | ||
8977 | gs->group_id = ntohl(ogs11->group_id); | |
8978 | gs->ref_count = ntohl(ogs11->ref_count); | |
8979 | gs->packet_count = ntohll(ogs11->packet_count); | |
8980 | gs->byte_count = ntohll(ogs11->byte_count); | |
8981 | ||
8982 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
8983 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
8984 | if (!obc) { | |
437d0d22 | 8985 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8986 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8987 | return OFPERR_OFPBRC_BAD_LEN; |
8988 | } | |
8989 | ||
646b2a9c | 8990 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
8991 | for (i = 0; i < gs->n_buckets; i++) { |
8992 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
8993 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
8994 | } | |
8995 | ||
8996 | return 0; | |
8997 | } | |
8998 | ||
5097fee5 SH |
8999 | static void |
9000 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
9001 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
9002 | { | |
9003 | struct ofp11_bucket *ob; | |
9004 | size_t start; | |
9005 | ||
6fd6ed71 | 9006 | start = openflow->size; |
5097fee5 SH |
9007 | ofpbuf_put_zeros(openflow, sizeof *ob); |
9008 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
9009 | openflow, ofp_version); | |
9010 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 9011 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
9012 | ob->weight = htons(bucket->weight); |
9013 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
9014 | ob->watch_group = htonl(bucket->watch_group); | |
9015 | } | |
9016 | ||
18ac06d3 SH |
9017 | static void |
9018 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
9019 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
9020 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
9021 | { | |
9022 | struct ofp15_bucket *ob; | |
9023 | size_t start, actions_start, actions_len; | |
9024 | ||
6fd6ed71 | 9025 | start = openflow->size; |
18ac06d3 SH |
9026 | ofpbuf_put_zeros(openflow, sizeof *ob); |
9027 | ||
6fd6ed71 | 9028 | actions_start = openflow->size; |
18ac06d3 SH |
9029 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
9030 | openflow, ofp_version); | |
6fd6ed71 | 9031 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
9032 | |
9033 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 9034 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
9035 | } |
9036 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
9037 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
9038 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
9039 | } |
9040 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 9041 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
9042 | } |
9043 | ||
9044 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 9045 | ob->len = htons(openflow->size - start); |
79870963 | 9046 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
9047 | ob->bucket_id = htonl(bucket_id); |
9048 | } | |
9049 | ||
53eb84a5 SH |
9050 | static void |
9051 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
9052 | const struct ofputil_group_props *gp, | |
9053 | struct ofpbuf *openflow) | |
9054 | { | |
9055 | struct ntr_group_prop_selection_method *prop; | |
9056 | size_t start; | |
9057 | ||
9058 | start = openflow->size; | |
9059 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
9060 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
9061 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
9062 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
9063 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
9064 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
9065 | strcpy(prop->selection_method, gp->selection_method); | |
9066 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 9067 | ofpprop_end(openflow, start); |
53eb84a5 SH |
9068 | } |
9069 | ||
5be50252 SH |
9070 | static void |
9071 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 9072 | const struct ovs_list *buckets, |
ca6ba700 | 9073 | struct ovs_list *replies, |
5be50252 | 9074 | enum ofp_version version) |
7395c052 | 9075 | { |
417e7e66 | 9076 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
7395c052 NZ |
9077 | struct ofp11_group_desc_stats *ogds; |
9078 | struct ofputil_bucket *bucket; | |
9079 | size_t start_ogds; | |
9080 | ||
6fd6ed71 | 9081 | start_ogds = reply->size; |
7395c052 NZ |
9082 | ofpbuf_put_zeros(reply, sizeof *ogds); |
9083 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 9084 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
9085 | } |
9086 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 9087 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
9088 | ogds->type = gds->type; |
9089 | ogds->group_id = htonl(gds->group_id); | |
9090 | ||
9091 | ofpmp_postappend(replies, start_ogds); | |
9092 | } | |
9093 | ||
18ac06d3 SH |
9094 | static void |
9095 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 9096 | const struct ovs_list *buckets, |
ca6ba700 | 9097 | struct ovs_list *replies, |
18ac06d3 SH |
9098 | enum ofp_version version) |
9099 | { | |
417e7e66 | 9100 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
18ac06d3 SH |
9101 | struct ofp15_group_desc_stats *ogds; |
9102 | struct ofputil_bucket *bucket; | |
9103 | size_t start_ogds, start_buckets; | |
9104 | ||
6fd6ed71 | 9105 | start_ogds = reply->size; |
18ac06d3 | 9106 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 9107 | start_buckets = reply->size; |
18ac06d3 SH |
9108 | LIST_FOR_EACH (bucket, list_node, buckets) { |
9109 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
9110 | gds->type, reply, version); | |
9111 | } | |
9112 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
9113 | ogds->type = gds->type; |
9114 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 9115 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 9116 | |
53eb84a5 SH |
9117 | /* Add group properties */ |
9118 | if (gds->props.selection_method[0]) { | |
9119 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
9120 | reply); | |
9121 | } | |
ef5774e3 | 9122 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); |
3986cae6 | 9123 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 9124 | |
18ac06d3 SH |
9125 | ofpmp_postappend(replies, start_ogds); |
9126 | } | |
9127 | ||
5be50252 SH |
9128 | /* Appends a group stats reply that contains the data in 'gds' to those already |
9129 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
9130 | * initialized with ofpmp_init(). */ | |
9131 | void | |
9132 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 9133 | const struct ovs_list *buckets, |
ca6ba700 | 9134 | struct ovs_list *replies) |
5be50252 SH |
9135 | { |
9136 | enum ofp_version version = ofpmp_version(replies); | |
9137 | ||
9138 | switch (version) | |
9139 | { | |
9140 | case OFP11_VERSION: | |
9141 | case OFP12_VERSION: | |
9142 | case OFP13_VERSION: | |
9143 | case OFP14_VERSION: | |
5be50252 SH |
9144 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
9145 | break; | |
9146 | ||
18ac06d3 | 9147 | case OFP15_VERSION: |
b79d45a1 | 9148 | case OFP16_VERSION: |
18ac06d3 SH |
9149 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); |
9150 | break; | |
9151 | ||
5be50252 SH |
9152 | case OFP10_VERSION: |
9153 | default: | |
9154 | OVS_NOT_REACHED(); | |
9155 | } | |
9156 | } | |
9157 | ||
7395c052 | 9158 | static enum ofperr |
655ed3ae | 9159 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 9160 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
9161 | { |
9162 | struct ofp11_bucket *ob; | |
18ac06d3 | 9163 | uint32_t bucket_id = 0; |
7395c052 | 9164 | |
417e7e66 | 9165 | ovs_list_init(buckets); |
7395c052 NZ |
9166 | while (buckets_length > 0) { |
9167 | struct ofputil_bucket *bucket; | |
9168 | struct ofpbuf ofpacts; | |
9169 | enum ofperr error; | |
9170 | size_t ob_len; | |
9171 | ||
9172 | ob = (buckets_length >= sizeof *ob | |
9173 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
9174 | : NULL); | |
9175 | if (!ob) { | |
34582733 | 9176 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 9177 | buckets_length); |
e27e4ce9 | 9178 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
9179 | } |
9180 | ||
9181 | ob_len = ntohs(ob->len); | |
9182 | if (ob_len < sizeof *ob) { | |
9183 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 9184 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
9185 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9186 | } else if (ob_len > buckets_length) { | |
9187 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 9188 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
9189 | ob_len, buckets_length); |
9190 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9191 | } | |
9192 | buckets_length -= ob_len; | |
9193 | ||
9194 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 | 9195 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
5c7c16d8 | 9196 | version, NULL, NULL, &ofpacts); |
7395c052 NZ |
9197 | if (error) { |
9198 | ofpbuf_uninit(&ofpacts); | |
9199 | ofputil_bucket_list_destroy(buckets); | |
9200 | return error; | |
9201 | } | |
9202 | ||
9203 | bucket = xzalloc(sizeof *bucket); | |
9204 | bucket->weight = ntohs(ob->weight); | |
9205 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
9206 | if (error) { | |
9207 | ofpbuf_uninit(&ofpacts); | |
9208 | ofputil_bucket_list_destroy(buckets); | |
b52953b5 | 9209 | free(bucket); |
7395c052 NZ |
9210 | return OFPERR_OFPGMFC_BAD_WATCH; |
9211 | } | |
9212 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
9213 | bucket->bucket_id = bucket_id++; |
9214 | ||
7395c052 | 9215 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 9216 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 9217 | ovs_list_push_back(buckets, &bucket->list_node); |
7395c052 NZ |
9218 | } |
9219 | ||
9220 | return 0; | |
9221 | } | |
9222 | ||
18ac06d3 SH |
9223 | static enum ofperr |
9224 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
9225 | enum ofp_version version, uint8_t group_type, |
9226 | struct ovs_list *buckets) | |
18ac06d3 SH |
9227 | { |
9228 | struct ofp15_bucket *ob; | |
9229 | ||
417e7e66 | 9230 | ovs_list_init(buckets); |
18ac06d3 SH |
9231 | while (buckets_length > 0) { |
9232 | struct ofputil_bucket *bucket = NULL; | |
9233 | struct ofpbuf ofpacts; | |
9234 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
18ac06d3 SH |
9235 | size_t ob_len, actions_len, properties_len; |
9236 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
9237 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 9238 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
9239 | |
9240 | ofpbuf_init(&ofpacts, 0); | |
9241 | ||
9242 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
9243 | if (!ob) { | |
9244 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
9245 | " leftover bytes", buckets_length); | |
9246 | goto err; | |
9247 | } | |
9248 | ||
9249 | ob_len = ntohs(ob->len); | |
79870963 | 9250 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
9251 | |
9252 | if (ob_len < sizeof *ob) { | |
9253 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
9254 | "%"PRIuSIZE" is not valid", ob_len); | |
9255 | goto err; | |
9256 | } else if (ob_len > buckets_length) { | |
9257 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
9258 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
9259 | PRIuSIZE, ob_len, buckets_length); | |
9260 | goto err; | |
9261 | } else if (actions_len > ob_len - sizeof *ob) { | |
9262 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
9263 | "length %"PRIuSIZE" exceeds remaining bucket " | |
9264 | "data size %"PRIuSIZE, actions_len, | |
9265 | ob_len - sizeof *ob); | |
9266 | goto err; | |
9267 | } | |
9268 | buckets_length -= ob_len; | |
9269 | ||
9270 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
5c7c16d8 | 9271 | NULL, NULL, &ofpacts); |
18ac06d3 SH |
9272 | if (err) { |
9273 | goto err; | |
9274 | } | |
9275 | ||
9276 | properties_len = ob_len - sizeof *ob - actions_len; | |
0a2869d5 BP |
9277 | struct ofpbuf properties = ofpbuf_const_initializer( |
9278 | ofpbuf_pull(msg, properties_len), properties_len); | |
6fd6ed71 | 9279 | while (properties.size > 0) { |
18ac06d3 | 9280 | struct ofpbuf payload; |
34a543e3 | 9281 | uint64_t type; |
18ac06d3 | 9282 | |
c5562271 | 9283 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
9284 | if (err) { |
9285 | goto err; | |
9286 | } | |
9287 | ||
9288 | switch (type) { | |
9289 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 9290 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
9291 | break; |
9292 | ||
9293 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 9294 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
9295 | break; |
9296 | ||
9297 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 9298 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
9299 | break; |
9300 | ||
9301 | default: | |
34a543e3 | 9302 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
9303 | break; |
9304 | } | |
9305 | ||
9306 | if (err) { | |
9307 | goto err; | |
9308 | } | |
9309 | } | |
9310 | ||
9311 | bucket = xzalloc(sizeof *bucket); | |
9312 | ||
9313 | bucket->weight = ntohs(weight); | |
9314 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
9315 | if (err) { | |
9316 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
9317 | goto err; | |
9318 | } | |
9319 | bucket->watch_group = ntohl(watch_group); | |
9320 | bucket->bucket_id = ntohl(ob->bucket_id); | |
9321 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
9322 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
9323 | bucket->bucket_id); | |
9324 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
9325 | goto err; | |
9326 | } | |
9327 | ||
9328 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 9329 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 9330 | ovs_list_push_back(buckets, &bucket->list_node); |
18ac06d3 SH |
9331 | |
9332 | continue; | |
9333 | ||
9334 | err: | |
9335 | free(bucket); | |
9336 | ofpbuf_uninit(&ofpacts); | |
9337 | ofputil_bucket_list_destroy(buckets); | |
9338 | return err; | |
9339 | } | |
9340 | ||
9341 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
9342 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
9343 | ofputil_bucket_list_destroy(buckets); | |
9344 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9345 | } | |
9346 | ||
9347 | return 0; | |
9348 | } | |
9349 | ||
bc65c25a SH |
9350 | static void |
9351 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
9352 | { | |
9353 | memset(gp, 0, sizeof *gp); | |
9354 | } | |
9355 | ||
e8dba719 JR |
9356 | void |
9357 | ofputil_group_properties_copy(struct ofputil_group_props *to, | |
9358 | const struct ofputil_group_props *from) | |
9359 | { | |
9360 | *to = *from; | |
9361 | to->fields.values = xmemdup(from->fields.values, from->fields.values_size); | |
9362 | } | |
9363 | ||
9364 | void | |
9365 | ofputil_group_properties_destroy(struct ofputil_group_props *gp) | |
9366 | { | |
9367 | free(gp->fields.values); | |
9368 | } | |
9369 | ||
bc65c25a SH |
9370 | static enum ofperr |
9371 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
9372 | enum ofp11_group_type group_type, | |
9373 | enum ofp15_group_mod_command group_cmd, | |
9374 | struct ofputil_group_props *gp) | |
9375 | { | |
9376 | struct ntr_group_prop_selection_method *prop = payload->data; | |
9377 | size_t fields_len, method_len; | |
9378 | enum ofperr error; | |
9379 | ||
9380 | switch (group_type) { | |
9381 | case OFPGT11_SELECT: | |
9382 | break; | |
9383 | case OFPGT11_ALL: | |
9384 | case OFPGT11_INDIRECT: | |
9385 | case OFPGT11_FF: | |
c5562271 BP |
9386 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
9387 | "only allowed for select groups"); | |
bc65c25a SH |
9388 | return OFPERR_OFPBPC_BAD_VALUE; |
9389 | default: | |
9390 | OVS_NOT_REACHED(); | |
9391 | } | |
9392 | ||
9393 | switch (group_cmd) { | |
9394 | case OFPGC15_ADD: | |
9395 | case OFPGC15_MODIFY: | |
88b87a36 | 9396 | case OFPGC15_ADD_OR_MOD: |
bc65c25a SH |
9397 | break; |
9398 | case OFPGC15_DELETE: | |
9399 | case OFPGC15_INSERT_BUCKET: | |
9400 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
9401 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
9402 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
9403 | return OFPERR_OFPBPC_BAD_VALUE; |
9404 | default: | |
9405 | OVS_NOT_REACHED(); | |
9406 | } | |
9407 | ||
9408 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
9409 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
9410 | "length %u is not valid", payload->size); | |
bc65c25a SH |
9411 | return OFPERR_OFPBPC_BAD_LEN; |
9412 | } | |
9413 | ||
9414 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
9415 | ||
9416 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
9417 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9418 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
9419 | return OFPERR_OFPBPC_BAD_VALUE; |
9420 | } | |
9421 | ||
53cc166a JR |
9422 | if (strcmp("hash", prop->selection_method) |
9423 | && strcmp("dp_hash", prop->selection_method)) { | |
c5562271 BP |
9424 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9425 | "ntr selection method '%s' is not supported", | |
9426 | prop->selection_method); | |
0c4b9393 SH |
9427 | return OFPERR_OFPBPC_BAD_VALUE; |
9428 | } | |
53cc166a | 9429 | /* 'method_len' is now non-zero. */ |
bc65c25a SH |
9430 | |
9431 | strcpy(gp->selection_method, prop->selection_method); | |
9432 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
9433 | ||
bc65c25a SH |
9434 | ofpbuf_pull(payload, sizeof *prop); |
9435 | ||
9436 | fields_len = ntohs(prop->length) - sizeof *prop; | |
53cc166a JR |
9437 | if (fields_len && strcmp("hash", gp->selection_method)) { |
9438 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method %s " | |
9439 | "does not support fields", gp->selection_method); | |
bc65c25a SH |
9440 | return OFPERR_OFPBPC_BAD_VALUE; |
9441 | } | |
9442 | ||
9443 | error = oxm_pull_field_array(payload->data, fields_len, | |
9444 | &gp->fields); | |
9445 | if (error) { | |
c5562271 BP |
9446 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9447 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
9448 | return error; |
9449 | } | |
9450 | ||
9451 | return 0; | |
9452 | } | |
9453 | ||
bc65c25a SH |
9454 | static enum ofperr |
9455 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
9456 | enum ofp11_group_type group_type, | |
9457 | enum ofp15_group_mod_command group_cmd, | |
9458 | struct ofputil_group_props *gp, | |
9459 | size_t properties_len) | |
9460 | { | |
0a2869d5 BP |
9461 | struct ofpbuf properties = ofpbuf_const_initializer( |
9462 | ofpbuf_pull(msg, properties_len), properties_len); | |
bc65c25a SH |
9463 | while (properties.size > 0) { |
9464 | struct ofpbuf payload; | |
9465 | enum ofperr error; | |
34a543e3 | 9466 | uint64_t type; |
bc65c25a | 9467 | |
c5562271 | 9468 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
9469 | if (error) { |
9470 | return error; | |
9471 | } | |
9472 | ||
9473 | switch (type) { | |
34a543e3 BP |
9474 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
9475 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
9476 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
9477 | group_cmd, gp); | |
bc65c25a SH |
9478 | break; |
9479 | ||
9480 | default: | |
34a543e3 | 9481 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
9482 | break; |
9483 | } | |
9484 | ||
9485 | if (error) { | |
9486 | return error; | |
9487 | } | |
9488 | } | |
9489 | ||
9490 | return 0; | |
9491 | } | |
9492 | ||
975910f2 SH |
9493 | static int |
9494 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
9495 | struct ofpbuf *msg, | |
9496 | enum ofp_version version) | |
7395c052 NZ |
9497 | { |
9498 | struct ofp11_group_desc_stats *ogds; | |
9499 | size_t length; | |
9500 | ||
6fd6ed71 | 9501 | if (!msg->header) { |
7395c052 NZ |
9502 | ofpraw_pull_assert(msg); |
9503 | } | |
9504 | ||
6fd6ed71 | 9505 | if (!msg->size) { |
7395c052 NZ |
9506 | return EOF; |
9507 | } | |
9508 | ||
9509 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9510 | if (!ogds) { | |
437d0d22 | 9511 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 9512 | "leftover bytes at end", msg->size); |
7395c052 NZ |
9513 | return OFPERR_OFPBRC_BAD_LEN; |
9514 | } | |
9515 | gd->type = ogds->type; | |
9516 | gd->group_id = ntohl(ogds->group_id); | |
9517 | ||
9518 | length = ntohs(ogds->length); | |
6fd6ed71 | 9519 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 9520 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 9521 | "length %"PRIuSIZE, length); |
7395c052 NZ |
9522 | return OFPERR_OFPBRC_BAD_LEN; |
9523 | } | |
9524 | ||
655ed3ae SH |
9525 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
9526 | &gd->buckets); | |
7395c052 NZ |
9527 | } |
9528 | ||
18ac06d3 SH |
9529 | static int |
9530 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
9531 | struct ofpbuf *msg, | |
9532 | enum ofp_version version) | |
9533 | { | |
9534 | struct ofp15_group_desc_stats *ogds; | |
9535 | uint16_t length, bucket_list_len; | |
bc65c25a | 9536 | int error; |
18ac06d3 | 9537 | |
6fd6ed71 | 9538 | if (!msg->header) { |
18ac06d3 SH |
9539 | ofpraw_pull_assert(msg); |
9540 | } | |
9541 | ||
6fd6ed71 | 9542 | if (!msg->size) { |
18ac06d3 SH |
9543 | return EOF; |
9544 | } | |
9545 | ||
9546 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9547 | if (!ogds) { | |
9548 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 9549 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
9550 | return OFPERR_OFPBRC_BAD_LEN; |
9551 | } | |
9552 | gd->type = ogds->type; | |
9553 | gd->group_id = ntohl(ogds->group_id); | |
9554 | ||
9555 | length = ntohs(ogds->length); | |
6fd6ed71 | 9556 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
9557 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
9558 | "length %u", length); | |
9559 | return OFPERR_OFPBRC_BAD_LEN; | |
9560 | } | |
9561 | ||
9562 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
9563 | if (length < bucket_list_len + sizeof *ogds) { | |
9564 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
9565 | "bucket list length %u", bucket_list_len); | |
9566 | return OFPERR_OFPBRC_BAD_LEN; | |
9567 | } | |
64e8c446 | 9568 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
9569 | &gd->buckets); |
9570 | if (error) { | |
9571 | return error; | |
9572 | } | |
18ac06d3 | 9573 | |
bc65c25a SH |
9574 | /* By definition group desc messages don't have a group mod command. |
9575 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
9576 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
9577 | * against group mod messages with other commands supplying | |
9578 | * a NTR selection method group experimenter property. | |
9579 | * Such properties are valid for group desc replies so | |
9580 | * claim that the group mod command is OFPGC15_ADD to | |
9581 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
9582 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 9583 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
9584 | } |
9585 | ||
975910f2 SH |
9586 | /* Converts a group description reply in 'msg' into an abstract |
9587 | * ofputil_group_desc in 'gd'. | |
9588 | * | |
9589 | * Multiple group description replies can be packed into a single OpenFlow | |
9590 | * message. Calling this function multiple times for a single 'msg' iterates | |
9591 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9592 | * null and not modify them between calls. | |
9593 | * | |
9594 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9595 | * otherwise a positive errno value. */ | |
9596 | int | |
9597 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
9598 | struct ofpbuf *msg, enum ofp_version version) | |
9599 | { | |
bc65c25a SH |
9600 | ofputil_init_group_properties(&gd->props); |
9601 | ||
975910f2 SH |
9602 | switch (version) |
9603 | { | |
9604 | case OFP11_VERSION: | |
9605 | case OFP12_VERSION: | |
9606 | case OFP13_VERSION: | |
9607 | case OFP14_VERSION: | |
975910f2 SH |
9608 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
9609 | ||
18ac06d3 | 9610 | case OFP15_VERSION: |
b79d45a1 | 9611 | case OFP16_VERSION: |
18ac06d3 SH |
9612 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); |
9613 | ||
975910f2 SH |
9614 | case OFP10_VERSION: |
9615 | default: | |
9616 | OVS_NOT_REACHED(); | |
9617 | } | |
9618 | } | |
9619 | ||
bc65c25a SH |
9620 | void |
9621 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
9622 | { | |
9623 | ofputil_bucket_list_destroy(&gm->buckets); | |
e8dba719 | 9624 | ofputil_group_properties_destroy(&gm->props); |
bc65c25a SH |
9625 | } |
9626 | ||
4498bea5 SH |
9627 | static struct ofpbuf * |
9628 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
9629 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
9630 | { |
9631 | struct ofpbuf *b; | |
9632 | struct ofp11_group_mod *ogm; | |
9633 | size_t start_ogm; | |
7395c052 | 9634 | struct ofputil_bucket *bucket; |
7395c052 | 9635 | |
4498bea5 | 9636 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 9637 | start_ogm = b->size; |
4498bea5 SH |
9638 | ofpbuf_put_zeros(b, sizeof *ogm); |
9639 | ||
9640 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9641 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
9642 | } | |
9643 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9644 | ogm->command = htons(gm->command); | |
9645 | ogm->type = gm->type; | |
9646 | ogm->group_id = htonl(gm->group_id); | |
9647 | ||
9648 | return b; | |
9649 | } | |
9650 | ||
18ac06d3 SH |
9651 | static struct ofpbuf * |
9652 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
9653 | const struct ofputil_group_mod *gm) | |
9654 | { | |
9655 | struct ofpbuf *b; | |
9656 | struct ofp15_group_mod *ogm; | |
9657 | size_t start_ogm; | |
9658 | struct ofputil_bucket *bucket; | |
9659 | struct id_pool *bucket_ids = NULL; | |
9660 | ||
9661 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 9662 | start_ogm = b->size; |
18ac06d3 SH |
9663 | ofpbuf_put_zeros(b, sizeof *ogm); |
9664 | ||
9665 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9666 | uint32_t bucket_id; | |
9667 | ||
9668 | /* Generate a bucket id if none was supplied */ | |
9669 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
9670 | if (!bucket_ids) { | |
9671 | const struct ofputil_bucket *bkt; | |
9672 | ||
9673 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
9674 | ||
9675 | /* Mark all bucket_ids that are present in gm | |
9676 | * as used in the pool. */ | |
9677 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
9678 | if (bkt == bucket) { | |
9679 | break; | |
9680 | } | |
9681 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
9682 | id_pool_add(bucket_ids, bkt->bucket_id); | |
9683 | } | |
9684 | } | |
9685 | } | |
9686 | ||
9687 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
9688 | OVS_NOT_REACHED(); | |
9689 | } | |
9690 | } else { | |
9691 | bucket_id = bucket->bucket_id; | |
9692 | } | |
9693 | ||
9694 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
9695 | } | |
9696 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9697 | ogm->command = htons(gm->command); | |
9698 | ogm->type = gm->type; | |
9699 | ogm->group_id = htonl(gm->group_id); | |
9700 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 9701 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 9702 | |
53eb84a5 SH |
9703 | /* Add group properties */ |
9704 | if (gm->props.selection_method[0]) { | |
9705 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
9706 | } | |
9707 | ||
18ac06d3 SH |
9708 | id_pool_destroy(bucket_ids); |
9709 | return b; | |
9710 | } | |
9711 | ||
d4b1d0ca | 9712 | static void |
9dd30b05 BP |
9713 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
9714 | { | |
d4b1d0ca SH |
9715 | const char *opt_version; |
9716 | const char *version; | |
9717 | const char *cmd_str; | |
9718 | ||
9719 | switch (cmd) { | |
9720 | case OFPGC15_ADD: | |
9721 | case OFPGC15_MODIFY: | |
88b87a36 | 9722 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9723 | case OFPGC15_DELETE: |
9724 | version = "1.1"; | |
9725 | opt_version = "11"; | |
9726 | break; | |
9727 | ||
9728 | case OFPGC15_INSERT_BUCKET: | |
9729 | case OFPGC15_REMOVE_BUCKET: | |
9730 | version = "1.5"; | |
9731 | opt_version = "15"; | |
9dd30b05 | 9732 | break; |
d4b1d0ca SH |
9733 | |
9734 | default: | |
9735 | OVS_NOT_REACHED(); | |
9736 | } | |
9737 | ||
9738 | switch (cmd) { | |
9739 | case OFPGC15_ADD: | |
9740 | cmd_str = "add-group"; | |
9741 | break; | |
9742 | ||
9743 | case OFPGC15_MODIFY: | |
88b87a36 | 9744 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9745 | cmd_str = "mod-group"; |
9746 | break; | |
9747 | ||
9748 | case OFPGC15_DELETE: | |
9749 | cmd_str = "del-group"; | |
9750 | break; | |
9751 | ||
9752 | case OFPGC15_INSERT_BUCKET: | |
9753 | cmd_str = "insert-bucket"; | |
9754 | break; | |
9755 | ||
9756 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 9757 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
9758 | break; |
9759 | ||
9760 | default: | |
9761 | OVS_NOT_REACHED(); | |
9762 | } | |
9763 | ||
9764 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
9765 | cmd_str, version, opt_version); | |
9766 | ||
9767 | } | |
9768 | ||
4498bea5 SH |
9769 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
9770 | * 'ofp_version' and returns the message. */ | |
9771 | struct ofpbuf * | |
9772 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
9773 | const struct ofputil_group_mod *gm) | |
9774 | { | |
d4b1d0ca | 9775 | |
7395c052 | 9776 | switch (ofp_version) { |
d4b1d0ca SH |
9777 | case OFP10_VERSION: |
9778 | bad_group_cmd(gm->command); | |
73c7216a | 9779 | /* fall through */ |
7395c052 NZ |
9780 | |
9781 | case OFP11_VERSION: | |
9782 | case OFP12_VERSION: | |
c37c0382 AC |
9783 | case OFP13_VERSION: |
9784 | case OFP14_VERSION: | |
88b87a36 | 9785 | if (gm->command > OFPGC11_DELETE && gm->command != OFPGC11_ADD_OR_MOD) { |
d4b1d0ca SH |
9786 | bad_group_cmd(gm->command); |
9787 | } | |
4498bea5 | 9788 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 9789 | |
18ac06d3 | 9790 | case OFP15_VERSION: |
b79d45a1 | 9791 | case OFP16_VERSION: |
18ac06d3 SH |
9792 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); |
9793 | ||
7395c052 | 9794 | default: |
428b2edd | 9795 | OVS_NOT_REACHED(); |
7395c052 | 9796 | } |
7395c052 NZ |
9797 | } |
9798 | ||
aead63f2 SH |
9799 | static enum ofperr |
9800 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9801 | struct ofputil_group_mod *gm) | |
9802 | { | |
9803 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 9804 | enum ofperr error; |
aead63f2 SH |
9805 | |
9806 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9807 | gm->command = ntohs(ogm->command); | |
9808 | gm->type = ogm->type; | |
9809 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 9810 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 9811 | |
6fd6ed71 | 9812 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
9813 | &gm->buckets); |
9814 | ||
9815 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
9816 | if (!error | |
9817 | && ofp_version >= OFP13_VERSION | |
9818 | && gm->command == OFPGC11_DELETE | |
417e7e66 | 9819 | && !ovs_list_is_empty(&gm->buckets)) { |
08ba0810 BP |
9820 | error = OFPERR_OFPGMFC_INVALID_GROUP; |
9821 | } | |
9822 | ||
9823 | return error; | |
aead63f2 SH |
9824 | } |
9825 | ||
18ac06d3 SH |
9826 | static enum ofperr |
9827 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9828 | struct ofputil_group_mod *gm) | |
9829 | { | |
9830 | const struct ofp15_group_mod *ogm; | |
9831 | uint16_t bucket_list_len; | |
9832 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
9833 | ||
9834 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9835 | gm->command = ntohs(ogm->command); | |
9836 | gm->type = ogm->type; | |
9837 | gm->group_id = ntohl(ogm->group_id); | |
9838 | ||
9839 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
9840 | switch (gm->command) { | |
9841 | case OFPGC15_REMOVE_BUCKET: | |
9842 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9843 | error = 0; | |
9844 | } | |
9845 | /* Fall through */ | |
9846 | case OFPGC15_INSERT_BUCKET: | |
9847 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
9848 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
9849 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
9850 | error = 0; | |
9851 | } | |
9852 | break; | |
9853 | ||
9854 | case OFPGC11_ADD: | |
9855 | case OFPGC11_MODIFY: | |
88b87a36 | 9856 | case OFPGC11_ADD_OR_MOD: |
18ac06d3 SH |
9857 | case OFPGC11_DELETE: |
9858 | default: | |
9859 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9860 | error = 0; | |
9861 | } | |
9862 | break; | |
9863 | } | |
9864 | if (error) { | |
9865 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
9866 | "group command bucket id (%u) is out of range", | |
9867 | gm->command_bucket_id); | |
9868 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9869 | } | |
9870 | ||
79870963 | 9871 | bucket_list_len = ntohs(ogm->bucket_array_len); |
1752ea92 BP |
9872 | if (bucket_list_len > msg->size) { |
9873 | return OFPERR_OFPBRC_BAD_LEN; | |
9874 | } | |
bc65c25a | 9875 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 9876 | gm->type, &gm->buckets); |
bc65c25a SH |
9877 | if (error) { |
9878 | return error; | |
18ac06d3 SH |
9879 | } |
9880 | ||
bc65c25a SH |
9881 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
9882 | msg->size); | |
18ac06d3 SH |
9883 | } |
9884 | ||
7395c052 NZ |
9885 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
9886 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
9887 | enum ofperr | |
9888 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
9889 | struct ofputil_group_mod *gm) | |
9890 | { | |
0a2869d5 | 9891 | ofputil_init_group_properties(&gm->props); |
7395c052 | 9892 | |
0a2869d5 BP |
9893 | enum ofp_version ofp_version = oh->version; |
9894 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
7395c052 NZ |
9895 | ofpraw_pull_assert(&msg); |
9896 | ||
0a2869d5 | 9897 | enum ofperr err; |
aead63f2 SH |
9898 | switch (ofp_version) |
9899 | { | |
9900 | case OFP11_VERSION: | |
9901 | case OFP12_VERSION: | |
9902 | case OFP13_VERSION: | |
9903 | case OFP14_VERSION: | |
aead63f2 SH |
9904 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
9905 | break; | |
9906 | ||
18ac06d3 | 9907 | case OFP15_VERSION: |
b79d45a1 | 9908 | case OFP16_VERSION: |
18ac06d3 SH |
9909 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); |
9910 | break; | |
9911 | ||
aead63f2 SH |
9912 | case OFP10_VERSION: |
9913 | default: | |
9914 | OVS_NOT_REACHED(); | |
9915 | } | |
e57681e5 SH |
9916 | if (err) { |
9917 | return err; | |
9918 | } | |
9919 | ||
e1799eb7 SH |
9920 | switch (gm->type) { |
9921 | case OFPGT11_INDIRECT: | |
beaa2b87 LS |
9922 | if (gm->command != OFPGC11_DELETE |
9923 | && !ovs_list_is_singleton(&gm->buckets) ) { | |
290eada7 | 9924 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
9925 | } |
9926 | break; | |
9927 | case OFPGT11_ALL: | |
9928 | case OFPGT11_SELECT: | |
9929 | case OFPGT11_FF: | |
9930 | break; | |
9931 | default: | |
09d4b951 | 9932 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
9933 | } |
9934 | ||
9935 | switch (gm->command) { | |
9936 | case OFPGC11_ADD: | |
9937 | case OFPGC11_MODIFY: | |
88b87a36 | 9938 | case OFPGC11_ADD_OR_MOD: |
65075b99 SH |
9939 | case OFPGC11_DELETE: |
9940 | case OFPGC15_INSERT_BUCKET: | |
9941 | break; | |
9942 | case OFPGC15_REMOVE_BUCKET: | |
417e7e66 | 9943 | if (!ovs_list_is_empty(&gm->buckets)) { |
65075b99 SH |
9944 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9945 | } | |
9946 | break; | |
9947 | default: | |
09d4b951 | 9948 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
9949 | } |
9950 | ||
0a2869d5 | 9951 | struct ofputil_bucket *bucket; |
e57681e5 | 9952 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
9953 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
9954 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9955 | } | |
9956 | ||
e57681e5 SH |
9957 | switch (gm->type) { |
9958 | case OFPGT11_ALL: | |
9959 | case OFPGT11_INDIRECT: | |
9960 | if (ofputil_bucket_has_liveness(bucket)) { | |
9961 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
9962 | } | |
9963 | break; | |
9964 | case OFPGT11_SELECT: | |
9965 | break; | |
9966 | case OFPGT11_FF: | |
9967 | if (!ofputil_bucket_has_liveness(bucket)) { | |
9968 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9969 | } | |
9970 | break; | |
9971 | default: | |
896313f3 FL |
9972 | /* Returning BAD TYPE to be consistent |
9973 | * though gm->type has been checked already. */ | |
9974 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
9975 | } |
9976 | } | |
9977 | ||
9978 | return 0; | |
7395c052 NZ |
9979 | } |
9980 | ||
25070e04 JR |
9981 | /* Destroys 'bms'. */ |
9982 | void | |
6dd3c787 JR |
9983 | ofputil_free_bundle_msgs(struct ofputil_bundle_msg *bms, size_t n_bms) |
9984 | { | |
9985 | for (size_t i = 0; i < n_bms; i++) { | |
9986 | switch ((int)bms[i].type) { | |
9987 | case OFPTYPE_FLOW_MOD: | |
9988 | free(CONST_CAST(struct ofpact *, bms[i].fm.ofpacts)); | |
9989 | break; | |
9990 | case OFPTYPE_GROUP_MOD: | |
9991 | ofputil_uninit_group_mod(&bms[i].gm); | |
9992 | break; | |
9993 | case OFPTYPE_PACKET_OUT: | |
9994 | free(bms[i].po.ofpacts); | |
9995 | free(CONST_CAST(void *, bms[i].po.packet)); | |
9996 | break; | |
9997 | default: | |
9998 | break; | |
9999 | } | |
10000 | } | |
10001 | free(bms); | |
10002 | } | |
10003 | ||
10004 | void | |
10005 | ofputil_encode_bundle_msgs(const struct ofputil_bundle_msg *bms, | |
10006 | size_t n_bms, struct ovs_list *requests, | |
25070e04 JR |
10007 | enum ofputil_protocol protocol) |
10008 | { | |
10009 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
10010 | ||
10011 | for (size_t i = 0; i < n_bms; i++) { | |
10012 | struct ofpbuf *request = NULL; | |
10013 | ||
10014 | switch ((int)bms[i].type) { | |
10015 | case OFPTYPE_FLOW_MOD: | |
10016 | request = ofputil_encode_flow_mod(&bms[i].fm, protocol); | |
25070e04 JR |
10017 | break; |
10018 | case OFPTYPE_GROUP_MOD: | |
10019 | request = ofputil_encode_group_mod(version, &bms[i].gm); | |
6dd3c787 JR |
10020 | break; |
10021 | case OFPTYPE_PACKET_OUT: | |
10022 | request = ofputil_encode_packet_out(&bms[i].po, protocol); | |
25070e04 JR |
10023 | break; |
10024 | default: | |
10025 | break; | |
10026 | } | |
10027 | if (request) { | |
10028 | ovs_list_push_back(requests, &request->list_node); | |
10029 | } | |
10030 | } | |
25070e04 JR |
10031 | } |
10032 | ||
64626975 SH |
10033 | /* Parse a queue status request message into 'oqsr'. |
10034 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
10035 | enum ofperr | |
10036 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
10037 | struct ofputil_queue_stats_request *oqsr) | |
10038 | { | |
10039 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 10040 | case OFP16_VERSION: |
42dccab5 | 10041 | case OFP15_VERSION: |
c37c0382 | 10042 | case OFP14_VERSION: |
2e1ae200 | 10043 | case OFP13_VERSION: |
64626975 SH |
10044 | case OFP12_VERSION: |
10045 | case OFP11_VERSION: { | |
10046 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
10047 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
10048 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
10049 | } | |
10050 | ||
10051 | case OFP10_VERSION: { | |
7f05e7ab JR |
10052 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
10053 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 10054 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
10055 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
10056 | if (oqsr->port_no == OFPP_ALL) { | |
10057 | oqsr->port_no = OFPP_ANY; | |
10058 | } | |
64626975 SH |
10059 | return 0; |
10060 | } | |
10061 | ||
10062 | default: | |
428b2edd | 10063 | OVS_NOT_REACHED(); |
64626975 SH |
10064 | } |
10065 | } | |
10066 | ||
0746a84f BP |
10067 | /* Encode a queue stats request for 'oqsr', the encoded message |
10068 | * will be for OpenFlow version 'ofp_version'. Returns message | |
10069 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
10070 | struct ofpbuf * |
10071 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
10072 | const struct ofputil_queue_stats_request *oqsr) | |
10073 | { | |
10074 | struct ofpbuf *request; | |
10075 | ||
10076 | switch (ofp_version) { | |
10077 | case OFP11_VERSION: | |
2e1ae200 | 10078 | case OFP12_VERSION: |
c37c0382 | 10079 | case OFP13_VERSION: |
42dccab5 | 10080 | case OFP14_VERSION: |
b79d45a1 BP |
10081 | case OFP15_VERSION: |
10082 | case OFP16_VERSION: { | |
64626975 SH |
10083 | struct ofp11_queue_stats_request *req; |
10084 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
10085 | req = ofpbuf_put_zeros(request, sizeof *req); | |
10086 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
10087 | req->queue_id = htonl(oqsr->queue_id); | |
10088 | break; | |
10089 | } | |
10090 | case OFP10_VERSION: { | |
10091 | struct ofp10_queue_stats_request *req; | |
10092 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
10093 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 10094 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
10095 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
10096 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
10097 | req->queue_id = htonl(oqsr->queue_id); |
10098 | break; | |
10099 | } | |
10100 | default: | |
428b2edd | 10101 | OVS_NOT_REACHED(); |
64626975 SH |
10102 | } |
10103 | ||
10104 | return request; | |
10105 | } | |
10106 | ||
10107 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
10108 | * message 'oh'. */ | |
10109 | size_t | |
10110 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
10111 | { | |
0a2869d5 | 10112 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
64626975 | 10113 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
10114 | |
10115 | for (size_t n = 0; ; n++) { | |
10116 | struct ofputil_queue_stats qs; | |
10117 | if (ofputil_decode_queue_stats(&qs, &b)) { | |
10118 | return n; | |
10119 | } | |
1bb2cdbe | 10120 | } |
64626975 SH |
10121 | } |
10122 | ||
10123 | static enum ofperr | |
10124 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
10125 | const struct ofp10_queue_stats *qs10) | |
10126 | { | |
4e022ec0 | 10127 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 10128 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
10129 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
10130 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
10131 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
10132 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
10133 | |
10134 | return 0; | |
10135 | } | |
10136 | ||
10137 | static enum ofperr | |
10138 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
10139 | const struct ofp11_queue_stats *qs11) | |
10140 | { | |
10141 | enum ofperr error; | |
10142 | ||
10143 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
10144 | if (error) { | |
10145 | return error; | |
10146 | } | |
10147 | ||
10148 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
10149 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
10150 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
10151 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
10152 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
10153 | |
10154 | return 0; | |
10155 | } | |
10156 | ||
2e1ae200 JR |
10157 | static enum ofperr |
10158 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
10159 | const struct ofp13_queue_stats *qs13) | |
10160 | { | |
6dc34a0d | 10161 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 10162 | if (!error) { |
6dc34a0d BP |
10163 | oqs->duration_sec = ntohl(qs13->duration_sec); |
10164 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
10165 | } |
10166 | ||
10167 | return error; | |
10168 | } | |
10169 | ||
1bb2cdbe BP |
10170 | static enum ofperr |
10171 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
10172 | struct ofpbuf *msg) | |
10173 | { | |
10174 | const struct ofp14_queue_stats *qs14; | |
10175 | size_t len; | |
10176 | ||
10177 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
10178 | if (!qs14) { | |
10179 | return OFPERR_OFPBRC_BAD_LEN; | |
10180 | } | |
10181 | ||
10182 | len = ntohs(qs14->length); | |
6fd6ed71 | 10183 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
10184 | return OFPERR_OFPBRC_BAD_LEN; |
10185 | } | |
10186 | ofpbuf_pull(msg, len - sizeof *qs14); | |
10187 | ||
10188 | /* No properties yet defined, so ignore them for now. */ | |
10189 | ||
10190 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
10191 | } | |
10192 | ||
64626975 SH |
10193 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
10194 | * ofputil_queue_stats in 'qs'. | |
10195 | * | |
10196 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
10197 | * message. Calling this function multiple times for a single 'msg' iterates | |
10198 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
10199 | * null and not modify them between calls. | |
10200 | * | |
10201 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
10202 | * otherwise a positive errno value. */ | |
10203 | int | |
10204 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
10205 | { | |
10206 | enum ofperr error; | |
10207 | enum ofpraw raw; | |
10208 | ||
6fd6ed71 | 10209 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
10210 | : ofpraw_pull(&raw, msg)); |
10211 | if (error) { | |
10212 | return error; | |
10213 | } | |
10214 | ||
6fd6ed71 | 10215 | if (!msg->size) { |
64626975 | 10216 | return EOF; |
1bb2cdbe BP |
10217 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
10218 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
10219 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
10220 | const struct ofp13_queue_stats *qs13; | |
10221 | ||
10222 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
10223 | if (!qs13) { | |
10224 | goto bad_len; | |
10225 | } | |
10226 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
10227 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
10228 | const struct ofp11_queue_stats *qs11; | |
10229 | ||
10230 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
10231 | if (!qs11) { | |
2e1ae200 | 10232 | goto bad_len; |
64626975 SH |
10233 | } |
10234 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
10235 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
10236 | const struct ofp10_queue_stats *qs10; | |
10237 | ||
10238 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
10239 | if (!qs10) { | |
2e1ae200 | 10240 | goto bad_len; |
64626975 SH |
10241 | } |
10242 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
10243 | } else { | |
428b2edd | 10244 | OVS_NOT_REACHED(); |
64626975 | 10245 | } |
2e1ae200 JR |
10246 | |
10247 | bad_len: | |
437d0d22 | 10248 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 10249 | "bytes at end", msg->size); |
2e1ae200 | 10250 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
10251 | } |
10252 | ||
10253 | static void | |
10254 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
10255 | struct ofp10_queue_stats *qs10) | |
10256 | { | |
4e022ec0 | 10257 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
10258 | memset(qs10->pad, 0, sizeof qs10->pad); |
10259 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
10260 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
10261 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
10262 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
10263 | } |
10264 | ||
10265 | static void | |
10266 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
10267 | struct ofp11_queue_stats *qs11) | |
10268 | { | |
10269 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
10270 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
10271 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
10272 | qs11->tx_packets = htonll(oqs->tx_packets); | |
10273 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
10274 | } |
10275 | ||
2e1ae200 JR |
10276 | static void |
10277 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
10278 | struct ofp13_queue_stats *qs13) | |
10279 | { | |
10280 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
10281 | if (oqs->duration_sec != UINT32_MAX) { |
10282 | qs13->duration_sec = htonl(oqs->duration_sec); | |
10283 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
10284 | } else { | |
b8266395 BP |
10285 | qs13->duration_sec = OVS_BE32_MAX; |
10286 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 10287 | } |
2e1ae200 JR |
10288 | } |
10289 | ||
1bb2cdbe BP |
10290 | static void |
10291 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
10292 | struct ofp14_queue_stats *qs14) | |
10293 | { | |
10294 | qs14->length = htons(sizeof *qs14); | |
10295 | memset(qs14->pad, 0, sizeof qs14->pad); | |
10296 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
10297 | } | |
10298 | ||
10299 | ||
64626975 SH |
10300 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
10301 | void | |
ca6ba700 | 10302 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
10303 | const struct ofputil_queue_stats *oqs) |
10304 | { | |
e28ac5cf | 10305 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
10306 | case OFP13_VERSION: { |
10307 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
10308 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
10309 | break; | |
10310 | } | |
10311 | ||
64626975 SH |
10312 | case OFP12_VERSION: |
10313 | case OFP11_VERSION: { | |
2e1ae200 | 10314 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
10315 | ofputil_queue_stats_to_ofp11(oqs, reply); |
10316 | break; | |
10317 | } | |
10318 | ||
10319 | case OFP10_VERSION: { | |
2e1ae200 | 10320 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
10321 | ofputil_queue_stats_to_ofp10(oqs, reply); |
10322 | break; | |
10323 | } | |
10324 | ||
42dccab5 | 10325 | case OFP14_VERSION: |
b79d45a1 BP |
10326 | case OFP15_VERSION: |
10327 | case OFP16_VERSION: { | |
1bb2cdbe BP |
10328 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
10329 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 10330 | break; |
1bb2cdbe | 10331 | } |
c37c0382 | 10332 | |
64626975 | 10333 | default: |
428b2edd | 10334 | OVS_NOT_REACHED(); |
64626975 SH |
10335 | } |
10336 | } | |
777af88d AC |
10337 | |
10338 | enum ofperr | |
10339 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
10340 | struct ofputil_bundle_ctrl_msg *msg) | |
10341 | { | |
0a2869d5 BP |
10342 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10343 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
10344 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL |
10345 | || raw == OFPRAW_ONFT13_BUNDLE_CONTROL); | |
777af88d | 10346 | |
0a2869d5 | 10347 | const struct ofp14_bundle_ctrl_msg *m = b.msg; |
777af88d AC |
10348 | msg->bundle_id = ntohl(m->bundle_id); |
10349 | msg->type = ntohs(m->type); | |
10350 | msg->flags = ntohs(m->flags); | |
10351 | ||
10352 | return 0; | |
10353 | } | |
10354 | ||
db5076ee JR |
10355 | struct ofpbuf * |
10356 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
10357 | struct ofputil_bundle_ctrl_msg *bc) | |
10358 | { | |
10359 | struct ofpbuf *request; | |
10360 | struct ofp14_bundle_ctrl_msg *m; | |
10361 | ||
10362 | switch (ofp_version) { | |
10363 | case OFP10_VERSION: | |
10364 | case OFP11_VERSION: | |
10365 | case OFP12_VERSION: | |
06d4d4b6 | 10366 | ovs_fatal(0, "bundles need OpenFlow 1.3 or later " |
db5076ee | 10367 | "(\'-O OpenFlow14\')"); |
06d4d4b6 | 10368 | case OFP13_VERSION: |
db5076ee JR |
10369 | case OFP14_VERSION: |
10370 | case OFP15_VERSION: | |
b79d45a1 | 10371 | case OFP16_VERSION: |
06d4d4b6 JR |
10372 | request = ofpraw_alloc(ofp_version == OFP13_VERSION |
10373 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
10374 | : OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
db5076ee JR |
10375 | m = ofpbuf_put_zeros(request, sizeof *m); |
10376 | ||
10377 | m->bundle_id = htonl(bc->bundle_id); | |
10378 | m->type = htons(bc->type); | |
10379 | m->flags = htons(bc->flags); | |
10380 | break; | |
10381 | default: | |
10382 | OVS_NOT_REACHED(); | |
10383 | } | |
10384 | ||
10385 | return request; | |
10386 | } | |
10387 | ||
777af88d AC |
10388 | struct ofpbuf * |
10389 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
10390 | struct ofputil_bundle_ctrl_msg *msg) | |
10391 | { | |
10392 | struct ofpbuf *buf; | |
10393 | struct ofp14_bundle_ctrl_msg *m; | |
10394 | ||
06d4d4b6 JR |
10395 | buf = ofpraw_alloc_reply(oh->version == OFP13_VERSION |
10396 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
10397 | : OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
777af88d AC |
10398 | m = ofpbuf_put_zeros(buf, sizeof *m); |
10399 | ||
10400 | m->bundle_id = htonl(msg->bundle_id); | |
10401 | m->type = htons(msg->type); | |
10402 | m->flags = htons(msg->flags); | |
10403 | ||
10404 | return buf; | |
10405 | } | |
10406 | ||
c25ce22d JR |
10407 | /* Return true for bundlable state change requests, false for other messages. |
10408 | */ | |
10409 | static bool | |
10410 | ofputil_is_bundlable(enum ofptype type) | |
10411 | { | |
10412 | switch (type) { | |
10413 | /* Minimum required by OpenFlow 1.4. */ | |
10414 | case OFPTYPE_PORT_MOD: | |
10415 | case OFPTYPE_FLOW_MOD: | |
25070e04 JR |
10416 | /* Other supported types. */ |
10417 | case OFPTYPE_GROUP_MOD: | |
6dd3c787 | 10418 | case OFPTYPE_PACKET_OUT: |
c25ce22d JR |
10419 | return true; |
10420 | ||
10421 | /* Nice to have later. */ | |
10422 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
c25ce22d JR |
10423 | case OFPTYPE_TABLE_MOD: |
10424 | case OFPTYPE_METER_MOD: | |
4e548ad9 | 10425 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
10426 | |
10427 | /* Not to be bundlable. */ | |
10428 | case OFPTYPE_ECHO_REQUEST: | |
10429 | case OFPTYPE_FEATURES_REQUEST: | |
10430 | case OFPTYPE_GET_CONFIG_REQUEST: | |
10431 | case OFPTYPE_SET_CONFIG: | |
10432 | case OFPTYPE_BARRIER_REQUEST: | |
10433 | case OFPTYPE_ROLE_REQUEST: | |
10434 | case OFPTYPE_ECHO_REPLY: | |
10435 | case OFPTYPE_SET_FLOW_FORMAT: | |
10436 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
10437 | case OFPTYPE_SET_CONTROLLER_ID: | |
10438 | case OFPTYPE_FLOW_AGE: | |
10439 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
10440 | case OFPTYPE_SET_ASYNC_CONFIG: | |
10441 | case OFPTYPE_GET_ASYNC_REQUEST: | |
10442 | case OFPTYPE_DESC_STATS_REQUEST: | |
10443 | case OFPTYPE_FLOW_STATS_REQUEST: | |
10444 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
10445 | case OFPTYPE_TABLE_STATS_REQUEST: | |
10446 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 10447 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
10448 | case OFPTYPE_PORT_STATS_REQUEST: |
10449 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
10450 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
10451 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
10452 | case OFPTYPE_METER_STATS_REQUEST: | |
10453 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
10454 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
10455 | case OFPTYPE_GROUP_STATS_REQUEST: | |
10456 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
10457 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
10458 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
10459 | case OFPTYPE_BUNDLE_CONTROL: | |
10460 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
10461 | case OFPTYPE_HELLO: | |
10462 | case OFPTYPE_ERROR: | |
10463 | case OFPTYPE_FEATURES_REPLY: | |
10464 | case OFPTYPE_GET_CONFIG_REPLY: | |
10465 | case OFPTYPE_PACKET_IN: | |
10466 | case OFPTYPE_FLOW_REMOVED: | |
10467 | case OFPTYPE_PORT_STATUS: | |
10468 | case OFPTYPE_BARRIER_REPLY: | |
10469 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
10470 | case OFPTYPE_DESC_STATS_REPLY: | |
10471 | case OFPTYPE_FLOW_STATS_REPLY: | |
10472 | case OFPTYPE_QUEUE_STATS_REPLY: | |
10473 | case OFPTYPE_PORT_STATS_REPLY: | |
10474 | case OFPTYPE_TABLE_STATS_REPLY: | |
10475 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
10476 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
10477 | case OFPTYPE_ROLE_REPLY: | |
10478 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
10479 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
10480 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
10481 | case OFPTYPE_GET_ASYNC_REPLY: | |
10482 | case OFPTYPE_GROUP_STATS_REPLY: | |
10483 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
10484 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
10485 | case OFPTYPE_METER_STATS_REPLY: | |
10486 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
10487 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
10488 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 10489 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 10490 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 10491 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 10492 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 ML |
10493 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
10494 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
77ab5fd2 | 10495 | case OFPTYPE_NXT_RESUME: |
fb8f22c1 BY |
10496 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
10497 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: | |
10498 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
10499 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
2a7c4805 | 10500 | case OFPTYPE_CT_FLUSH_ZONE: |
c25ce22d JR |
10501 | break; |
10502 | } | |
10503 | ||
10504 | return false; | |
10505 | } | |
10506 | ||
777af88d AC |
10507 | enum ofperr |
10508 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 | 10509 | struct ofputil_bundle_add_msg *msg, |
0a2869d5 | 10510 | enum ofptype *typep) |
777af88d | 10511 | { |
0a2869d5 BP |
10512 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10513 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
10514 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE |
10515 | || raw == OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE); | |
777af88d | 10516 | |
0a2869d5 | 10517 | const struct ofp14_bundle_ctrl_msg *m = ofpbuf_pull(&b, sizeof *m); |
777af88d AC |
10518 | msg->bundle_id = ntohl(m->bundle_id); |
10519 | msg->flags = ntohs(m->flags); | |
10520 | ||
6fd6ed71 | 10521 | msg->msg = b.data; |
46be7132 | 10522 | if (msg->msg->version != oh->version) { |
bc02606a | 10523 | return OFPERR_OFPBFC_BAD_VERSION; |
46be7132 | 10524 | } |
0a2869d5 | 10525 | size_t inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 10526 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
10527 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
10528 | } | |
be6f6393 JR |
10529 | if (msg->msg->xid != oh->xid) { |
10530 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
10531 | } | |
777af88d | 10532 | |
c25ce22d | 10533 | /* Reject unbundlable messages. */ |
0a2869d5 BP |
10534 | enum ofptype type; |
10535 | enum ofperr error = ofptype_decode(&type, msg->msg); | |
c25ce22d JR |
10536 | if (error) { |
10537 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
10538 | "message is unparsable (%s)", ofperr_get_name(error)); | |
10539 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
10540 | } | |
10541 | ||
0a2869d5 | 10542 | if (!ofputil_is_bundlable(type)) { |
44648b0f | 10543 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
0a2869d5 | 10544 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type)); |
c25ce22d JR |
10545 | return OFPERR_OFPBFC_MSG_UNSUP; |
10546 | } | |
0a2869d5 BP |
10547 | if (typep) { |
10548 | *typep = type; | |
10549 | } | |
c25ce22d | 10550 | |
777af88d AC |
10551 | return 0; |
10552 | } | |
10553 | ||
10554 | struct ofpbuf * | |
10555 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
10556 | struct ofputil_bundle_add_msg *msg) | |
10557 | { | |
10558 | struct ofpbuf *request; | |
10559 | struct ofp14_bundle_ctrl_msg *m; | |
10560 | ||
7b3dca89 | 10561 | /* Must use the same xid as the embedded message. */ |
06d4d4b6 JR |
10562 | request = ofpraw_alloc_xid(ofp_version == OFP13_VERSION |
10563 | ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE | |
10564 | : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
bcf899f7 | 10565 | msg->msg->xid, ntohs(msg->msg->length)); |
777af88d AC |
10566 | m = ofpbuf_put_zeros(request, sizeof *m); |
10567 | ||
10568 | m->bundle_id = htonl(msg->bundle_id); | |
10569 | m->flags = htons(msg->flags); | |
10570 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
10571 | ||
bcf899f7 | 10572 | ofpmsg_update_length(request); |
777af88d AC |
10573 | return request; |
10574 | } | |
6159c531 JG |
10575 | |
10576 | static void | |
4e548ad9 | 10577 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 10578 | { |
4e548ad9 | 10579 | struct ofputil_tlv_map *map; |
6159c531 JG |
10580 | |
10581 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 10582 | struct nx_tlv_map *nx_map; |
6159c531 JG |
10583 | |
10584 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
10585 | nx_map->option_class = htons(map->option_class); | |
10586 | nx_map->option_type = map->option_type; | |
10587 | nx_map->option_len = map->option_len; | |
10588 | nx_map->index = htons(map->index); | |
10589 | } | |
10590 | } | |
10591 | ||
10592 | struct ofpbuf * | |
4e548ad9 ML |
10593 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
10594 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
10595 | { |
10596 | struct ofpbuf *b; | |
4e548ad9 | 10597 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 10598 | |
4e548ad9 ML |
10599 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
10600 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
10601 | nx_ttm->command = htons(ttm->command); | |
10602 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
10603 | |
10604 | return b; | |
10605 | } | |
10606 | ||
10607 | static enum ofperr | |
4e548ad9 | 10608 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 10609 | struct ovs_list *mappings) |
6159c531 | 10610 | { |
417e7e66 | 10611 | ovs_list_init(mappings); |
6159c531 JG |
10612 | |
10613 | while (msg->size) { | |
4e548ad9 ML |
10614 | struct nx_tlv_map *nx_map; |
10615 | struct ofputil_tlv_map *map; | |
6159c531 JG |
10616 | |
10617 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
10618 | map = xmalloc(sizeof *map); | |
417e7e66 | 10619 | ovs_list_push_back(mappings, &map->list_node); |
6159c531 JG |
10620 | |
10621 | map->option_class = ntohs(nx_map->option_class); | |
10622 | map->option_type = nx_map->option_type; | |
10623 | ||
10624 | map->option_len = nx_map->option_len; | |
4e548ad9 | 10625 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 10626 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10627 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 10628 | map->option_len); |
4e548ad9 ML |
10629 | ofputil_uninit_tlv_table(mappings); |
10630 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
10631 | } |
10632 | ||
10633 | map->index = ntohs(nx_map->index); | |
dfe5044c | 10634 | if (map->index >= max_fields) { |
6159c531 | 10635 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10636 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 10637 | map->index, max_fields - 1); |
4e548ad9 ML |
10638 | ofputil_uninit_tlv_table(mappings); |
10639 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
10640 | } |
10641 | } | |
10642 | ||
10643 | return 0; | |
10644 | } | |
10645 | ||
10646 | enum ofperr | |
4e548ad9 ML |
10647 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
10648 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 | 10649 | { |
0a2869d5 | 10650 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10651 | ofpraw_pull_assert(&msg); |
10652 | ||
0a2869d5 | 10653 | struct nx_tlv_table_mod *nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
4e548ad9 ML |
10654 | ttm->command = ntohs(nx_ttm->command); |
10655 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 10656 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
10657 | "tlv table mod command (%u) is out of range", |
10658 | ttm->command); | |
10659 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
10660 | } |
10661 | ||
4e548ad9 ML |
10662 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
10663 | &ttm->mappings); | |
6159c531 JG |
10664 | } |
10665 | ||
10666 | struct ofpbuf * | |
4e548ad9 ML |
10667 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
10668 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
10669 | { |
10670 | struct ofpbuf *b; | |
4e548ad9 | 10671 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 10672 | |
4e548ad9 ML |
10673 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
10674 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
10675 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
10676 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 10677 | |
4e548ad9 | 10678 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
10679 | |
10680 | return b; | |
10681 | } | |
10682 | ||
4e548ad9 | 10683 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
10684 | * if successful, otherwise an ofperr. |
10685 | * | |
4e548ad9 ML |
10686 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
10687 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 10688 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 10689 | enum ofperr |
4e548ad9 ML |
10690 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
10691 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 | 10692 | { |
0a2869d5 | 10693 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10694 | ofpraw_pull_assert(&msg); |
10695 | ||
0a2869d5 | 10696 | struct nx_tlv_table_reply *nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
4e548ad9 ML |
10697 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); |
10698 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 10699 | |
4e548ad9 | 10700 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
10701 | } |
10702 | ||
10703 | void | |
4e548ad9 | 10704 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 10705 | { |
4e548ad9 | 10706 | struct ofputil_tlv_map *map; |
6159c531 JG |
10707 | |
10708 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
10709 | free(map); | |
10710 | } | |
10711 | } | |
98090482 | 10712 | |
2da7974c BP |
10713 | const char * |
10714 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
10715 | { | |
10716 | switch (type) { | |
10717 | case OAM_PACKET_IN: return "PACKET_IN"; | |
10718 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
10719 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
10720 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
10721 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
10722 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
10723 | ||
10724 | case OAM_N_TYPES: | |
10725 | default: | |
10726 | OVS_NOT_REACHED(); | |
10727 | } | |
10728 | } | |
10729 | ||
8fd0bb60 BP |
10730 | struct ofp14_async_prop { |
10731 | uint64_t prop_type; | |
10732 | enum ofputil_async_msg_type oam; | |
10733 | bool master; | |
10734 | uint32_t allowed10, allowed14; | |
10735 | }; | |
10736 | ||
10737 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
10738 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
10739 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
10740 | ||
10741 | static const struct ofp14_async_prop async_props[] = { | |
10742 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
10743 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
10744 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
10745 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
10746 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
10747 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
10748 | }; | |
10749 | ||
10750 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
10751 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
10752 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
10753 | ||
10754 | static const struct ofp14_async_prop * | |
10755 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
10756 | { | |
10757 | FOR_EACH_ASYNC_PROP (ap) { | |
10758 | if (prop_type == ap->prop_type) { | |
10759 | return ap; | |
10760 | } | |
10761 | } | |
10762 | return NULL; | |
10763 | } | |
10764 | ||
10765 | static const struct ofp14_async_prop * | |
10766 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
10767 | bool master) | |
10768 | { | |
10769 | FOR_EACH_ASYNC_PROP (ap) { | |
10770 | if (ap->oam == oam && ap->master == master) { | |
10771 | return ap; | |
10772 | } | |
10773 | } | |
10774 | return NULL; | |
10775 | } | |
10776 | ||
10777 | static uint32_t | |
10778 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
10779 | enum ofp_version version) | |
10780 | { | |
10781 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
10782 | } | |
10783 | ||
10784 | static ovs_be32 | |
10785 | encode_async_mask(const struct ofputil_async_cfg *src, | |
10786 | const struct ofp14_async_prop *ap, | |
10787 | enum ofp_version version) | |
10788 | { | |
10789 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
10790 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
10791 | } | |
10792 | ||
10793 | static enum ofperr | |
10794 | decode_async_mask(ovs_be32 src, | |
10795 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
10796 | bool loose, struct ofputil_async_cfg *dst) | |
10797 | { | |
10798 | uint32_t mask = ntohl(src); | |
10799 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
10800 | if (mask & ~allowed) { | |
10801 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
10802 | "bad value %#x for %s (allowed mask %#x)", | |
10803 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
10804 | allowed); | |
10805 | mask &= allowed; | |
10806 | if (!loose) { | |
10807 | return OFPERR_OFPACFC_INVALID; | |
10808 | } | |
10809 | } | |
10810 | ||
9bfe9334 BP |
10811 | if (ap->oam == OAM_PACKET_IN) { |
10812 | if (mask & (1u << OFPR_NO_MATCH)) { | |
10813 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
10814 | if (version < OFP13_VERSION) { | |
10815 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
10816 | } | |
10817 | } | |
10818 | } | |
10819 | ||
8fd0bb60 BP |
10820 | uint32_t *array = ap->master ? dst->master : dst->slave; |
10821 | array[ap->oam] = mask; | |
10822 | return 0; | |
10823 | } | |
10824 | ||
10825 | static enum ofperr | |
10826 | parse_async_tlv(const struct ofpbuf *property, | |
10827 | const struct ofp14_async_prop *ap, | |
10828 | struct ofputil_async_cfg *ac, | |
10829 | enum ofp_version version, bool loose) | |
10830 | { | |
10831 | enum ofperr error; | |
10832 | ovs_be32 mask; | |
10833 | ||
10834 | error = ofpprop_parse_be32(property, &mask); | |
10835 | if (error) { | |
10836 | return error; | |
10837 | } | |
10838 | ||
10839 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10840 | /* For experimenter properties, whether a property is for the master or | |
10841 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
10842 | * ofp_prop_experimenter. Check that these are consistent. */ | |
10843 | const struct ofp_prop_experimenter *ope = property->data; | |
10844 | bool should_be_master = ope->type == htons(0xffff); | |
10845 | if (should_be_master != ap->master) { | |
10846 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
10847 | "indicates %s role but exp_type %"PRIu32" indicates " | |
10848 | "%s role", | |
10849 | ntohs(ope->type), | |
10850 | should_be_master ? "master" : "slave", | |
10851 | ntohl(ope->exp_type), | |
10852 | ap->master ? "master" : "slave"); | |
10853 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
10854 | } | |
10855 | } | |
10856 | ||
10857 | return decode_async_mask(mask, ap, version, loose, ac); | |
10858 | } | |
10859 | ||
10860 | static void | |
10861 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
10862 | enum ofputil_async_msg_type oam, | |
10863 | enum ofp_version version, | |
10864 | struct ofputil_async_cfg *dst) | |
10865 | { | |
10866 | for (int i = 0; i < 2; i++) { | |
10867 | bool master = i == 0; | |
10868 | const struct ofp14_async_prop *ap | |
10869 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10870 | decode_async_mask(masks[i], ap, version, true, dst); | |
10871 | } | |
10872 | } | |
10873 | ||
98090482 | 10874 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 10875 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 10876 | * |
5876b4db BP |
10877 | * Some versions of the "set async config" request change only some of the |
10878 | * settings and leave the others alone. This function uses 'basis' as the | |
10879 | * initial state for decoding these. Other versions of the request change all | |
10880 | * the settings; this function ignores 'basis' when decoding these. | |
10881 | * | |
98090482 NR |
10882 | * If 'loose' is true, this function ignores properties and values that it does |
10883 | * not understand, as a controller would want to do when interpreting | |
10884 | * capabilities provided by a switch. If 'loose' is false, this function | |
10885 | * treats unknown properties and values as an error, as a switch would want to | |
10886 | * do when interpreting a configuration request made by a controller. | |
10887 | * | |
d18cc1ee AA |
10888 | * Returns 0 if successful, otherwise an OFPERR_* value. |
10889 | * | |
10890 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
10891 | * the valid range of mask. | |
10892 | * | |
10893 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
10894 | * supported.*/ | |
98090482 | 10895 | enum ofperr |
a930d4c5 | 10896 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 10897 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 10898 | struct ofputil_async_cfg *ac) |
98090482 | 10899 | { |
0a2869d5 BP |
10900 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10901 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
98090482 NR |
10902 | |
10903 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
10904 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
10905 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
10906 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
10907 | ||
5876b4db | 10908 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
10909 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
10910 | oh->version, ac); | |
10911 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
10912 | oh->version, ac); | |
10913 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
10914 | oh->version, ac); | |
98090482 | 10915 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
10916 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
10917 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 10918 | *ac = *basis; |
98090482 | 10919 | while (b.size > 0) { |
98090482 NR |
10920 | struct ofpbuf property; |
10921 | enum ofperr error; | |
34a543e3 | 10922 | uint64_t type; |
98090482 | 10923 | |
34a543e3 | 10924 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
10925 | if (error) { |
10926 | return error; | |
10927 | } | |
10928 | ||
8fd0bb60 BP |
10929 | const struct ofp14_async_prop *ap |
10930 | = get_ofp14_async_config_prop_by_prop_type(type); | |
10931 | error = (ap | |
10932 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
10933 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 10934 | if (error) { |
8fd0bb60 BP |
10935 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
10936 | * knows why, it's OpenFlow. */ | |
10937 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
10938 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 10939 | } |
98090482 NR |
10940 | return error; |
10941 | } | |
10942 | } | |
10943 | } else { | |
10944 | return OFPERR_OFPBRC_BAD_VERSION; | |
10945 | } | |
10946 | return 0; | |
10947 | } | |
10948 | ||
8fd0bb60 BP |
10949 | static void |
10950 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
10951 | enum ofputil_async_msg_type oam, | |
10952 | enum ofp_version version, | |
10953 | ovs_be32 masks[2]) | |
98090482 | 10954 | { |
8fd0bb60 BP |
10955 | for (int i = 0; i < 2; i++) { |
10956 | bool master = i == 0; | |
10957 | const struct ofp14_async_prop *ap | |
10958 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10959 | masks[i] = encode_async_mask(ac, ap, version); | |
10960 | } | |
10961 | } | |
98090482 | 10962 | |
8fd0bb60 BP |
10963 | static void |
10964 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
10965 | struct ofpbuf *buf, bool tlv, | |
10966 | enum ofp_version version, uint32_t oams) | |
10967 | { | |
10968 | if (!tlv) { | |
10969 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
10970 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
10971 | msg->packet_in_mask); | |
10972 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
10973 | msg->port_status_mask); | |
10974 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
10975 | msg->flow_removed_mask); | |
10976 | } else { | |
10977 | FOR_EACH_ASYNC_PROP (ap) { | |
10978 | if (oams & (1u << ap->oam)) { | |
10979 | size_t ofs = buf->size; | |
10980 | ofpprop_put_be32(buf, ap->prop_type, | |
10981 | encode_async_mask(ac, ap, version)); | |
10982 | ||
10983 | /* For experimenter properties, we need to use type 0xfffe for | |
10984 | * master and 0xffff for slaves. */ | |
10985 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10986 | struct ofp_prop_experimenter *ope | |
10987 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
10988 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
10989 | } | |
10990 | } | |
98090482 | 10991 | } |
98090482 | 10992 | } |
98090482 NR |
10993 | } |
10994 | ||
8fd0bb60 BP |
10995 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
10996 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 10997 | struct ofpbuf * |
af7bc161 BP |
10998 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
10999 | const struct ofputil_async_cfg *ac) | |
98090482 | 11000 | { |
8fd0bb60 BP |
11001 | enum ofpraw raw = (oh->version < OFP14_VERSION |
11002 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
11003 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
11004 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
11005 | ofputil_put_async_config__(ac, reply, | |
11006 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
11007 | oh->version, UINT32_MAX); | |
11008 | return reply; | |
98090482 | 11009 | } |
a930d4c5 | 11010 | |
af7bc161 BP |
11011 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
11012 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
11013 | * | |
11014 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
11015 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
11016 | * messages, so more messages than requested may be configured. OF1.0 through | |
11017 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
11018 | * any extensions then this function encodes an Open vSwitch extension message | |
11019 | * that does support configuring OVS extension OAM_*. */ | |
11020 | struct ofpbuf * | |
11021 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
11022 | uint32_t oams, enum ofp_version ofp_version) | |
11023 | { | |
11024 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
11025 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
11026 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
11027 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
11028 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
11029 | ofputil_put_async_config__(ac, request, | |
11030 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
11031 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
11032 | ofp_version, oams); | |
11033 | return request; | |
11034 | } | |
11035 | ||
a930d4c5 BP |
11036 | struct ofputil_async_cfg |
11037 | ofputil_async_cfg_default(enum ofp_version version) | |
11038 | { | |
9bfe9334 BP |
11039 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
11040 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
11041 | * introduced in OF1.0, breaking it into more specific categories. When we | |
11042 | * encode these for earlier OpenFlow versions, we translate them into | |
11043 | * OFPR_ACTION. */ | |
11044 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
11045 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
11046 | if (version <= OFP12_VERSION) { | |
11047 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
11048 | } | |
11049 | ||
a930d4c5 | 11050 | return (struct ofputil_async_cfg) { |
9bfe9334 | 11051 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
11052 | |
11053 | .master[OAM_FLOW_REMOVED] | |
11054 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
11055 | ||
11056 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
11057 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
11058 | }; | |
11059 | } | |
6c6eedc5 SJ |
11060 | |
11061 | static void | |
11062 | ofputil_put_ofp14_table_desc(const struct ofputil_table_desc *td, | |
11063 | struct ofpbuf *b, enum ofp_version version) | |
11064 | { | |
11065 | struct ofp14_table_desc *otd; | |
11066 | struct ofp14_table_mod_prop_vacancy *otv; | |
11067 | size_t start_otd; | |
11068 | ||
11069 | start_otd = b->size; | |
11070 | ofpbuf_put_zeros(b, sizeof *otd); | |
11071 | ||
11072 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, td->eviction_flags); | |
11073 | ||
11074 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
11075 | otv->type = htons(OFPTMPT14_VACANCY); | |
11076 | otv->length = htons(sizeof *otv); | |
11077 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
11078 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
11079 | otv->vacancy = td->table_vacancy.vacancy; | |
11080 | ||
11081 | otd = ofpbuf_at_assert(b, start_otd, sizeof *otd); | |
11082 | otd->length = htons(b->size - start_otd); | |
11083 | otd->table_id = td->table_id; | |
11084 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
11085 | td->eviction, td->vacancy, | |
11086 | version); | |
11087 | } | |
11088 | ||
11089 | /* Converts the abstract form of a "table status" message in '*ts' into an | |
11090 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
11091 | * a buffer owned by the caller. */ | |
11092 | struct ofpbuf * | |
11093 | ofputil_encode_table_status(const struct ofputil_table_status *ts, | |
11094 | enum ofputil_protocol protocol) | |
11095 | { | |
11096 | enum ofp_version version; | |
11097 | struct ofpbuf *b; | |
11098 | ||
11099 | version = ofputil_protocol_to_ofp_version(protocol); | |
11100 | if (version >= OFP14_VERSION) { | |
11101 | enum ofpraw raw; | |
11102 | struct ofp14_table_status *ots; | |
11103 | ||
11104 | raw = OFPRAW_OFPT14_TABLE_STATUS; | |
11105 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
11106 | ots = ofpbuf_put_zeros(b, sizeof *ots); | |
11107 | ots->reason = ts->reason; | |
11108 | ofputil_put_ofp14_table_desc(&ts->desc, b, version); | |
11109 | ofpmsg_update_length(b); | |
11110 | return b; | |
11111 | } else { | |
11112 | return NULL; | |
11113 | } | |
11114 | } | |
11115 | ||
11116 | /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form | |
11117 | * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
11118 | enum ofperr | |
11119 | ofputil_decode_table_status(const struct ofp_header *oh, | |
11120 | struct ofputil_table_status *ts) | |
11121 | { | |
11122 | const struct ofp14_table_status *ots; | |
11123 | struct ofpbuf b; | |
11124 | enum ofperr error; | |
11125 | enum ofpraw raw; | |
11126 | ||
11127 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
11128 | raw = ofpraw_pull_assert(&b); | |
11129 | ots = ofpbuf_pull(&b, sizeof *ots); | |
11130 | ||
11131 | if (raw == OFPRAW_OFPT14_TABLE_STATUS) { | |
11132 | if (ots->reason != OFPTR_VACANCY_DOWN | |
11133 | && ots->reason != OFPTR_VACANCY_UP) { | |
11134 | return OFPERR_OFPBPC_BAD_VALUE; | |
11135 | } | |
11136 | ts->reason = ots->reason; | |
11137 | ||
11138 | error = ofputil_decode_table_desc(&b, &ts->desc, oh->version); | |
11139 | return error; | |
11140 | } else { | |
11141 | return OFPERR_OFPBRC_BAD_VERSION; | |
11142 | } | |
11143 | ||
11144 | return 0; | |
11145 | } |