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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" | |
36 | #include "openvswitch/meta-flow.h" | |
b598f214 | 37 | #include "openvswitch/ofp-actions.h" |
d271907f BW |
38 | #include "openvswitch/ofp-errors.h" |
39 | #include "openvswitch/ofp-msgs.h" | |
25d436fb | 40 | #include "openvswitch/ofp-print.h" |
66bd43fa | 41 | #include "openvswitch/ofp-prop.h" |
f4248336 | 42 | #include "openvswitch/ofp-util.h" |
64c96779 | 43 | #include "openvswitch/ofpbuf.h" |
d271907f BW |
44 | #include "openvswitch/type-props.h" |
45 | #include "openvswitch/vlog.h" | |
d6e3feb5 | 46 | #include "openflow/intel-ext.h" |
fa37b408 BP |
47 | #include "packets.h" |
48 | #include "random.h" | |
6159c531 | 49 | #include "tun-metadata.h" |
4ffd1b43 | 50 | #include "unaligned.h" |
ee89ea7b | 51 | #include "util.h" |
d5dc60f0 | 52 | #include "uuid.h" |
fa37b408 | 53 | |
d98e6007 | 54 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
55 | |
56 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
57 | * in the peer and so there's not much point in showing a lot of them. */ | |
58 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
59 | ||
de7d3c07 SJ |
60 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
61 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
62 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
63 | ovs_be32 config, enum ofp_version); | |
64 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
65 | enum ofputil_table_eviction, | |
de7d3c07 | 66 | enum ofputil_table_vacancy, |
82c22d34 | 67 | enum ofp_version); |
3c1bb396 | 68 | |
0596e897 BP |
69 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
70 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
71 | * is wildcarded. | |
72 | * | |
73 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
74 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
75 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
76 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
77 | * wildcarded. */ | |
78 | ovs_be32 | |
79 | ofputil_wcbits_to_netmask(int wcbits) | |
80 | { | |
81 | wcbits &= 0x3f; | |
82 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
83 | } | |
84 | ||
85 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
86 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
87 | * between 0 and 32 inclusive. | |
88 | * | |
89 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
90 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
91 | int |
92 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
93 | { | |
aad29cd1 | 94 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
95 | } |
96 | ||
eec25dc1 | 97 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 98 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
99 | * responsibility to handle the special case where the flow match's dl_vlan is |
100 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 101 | void |
eec25dc1 | 102 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 103 | { |
2482b0b0 | 104 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 39); |
a877206f | 105 | |
81a76618 | 106 | /* Initialize most of wc. */ |
f9ba8dad | 107 | flow_wildcards_init_catchall(wc); |
bad68a99 | 108 | |
0bdc4bec | 109 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 110 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 111 | } |
5d9499c4 BP |
112 | |
113 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 114 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 115 | } |
7257b535 | 116 | |
851d3105 | 117 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 118 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 119 | } |
26720e24 BP |
120 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
121 | >> OFPFW10_NW_SRC_SHIFT); | |
122 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
123 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 124 | |
eec25dc1 | 125 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 126 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 127 | } |
eec25dc1 | 128 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 129 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
130 | } |
131 | ||
eec25dc1 | 132 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 133 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 134 | } |
eec25dc1 | 135 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 136 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 137 | } |
e2170cff | 138 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 139 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 140 | } |
d8ae4d67 | 141 | |
eb6f28db | 142 | /* VLAN TCI mask. */ |
eec25dc1 | 143 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
f0fb825a | 144 | wc->masks.vlans[0].tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 145 | } |
eec25dc1 | 146 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
f0fb825a | 147 | wc->masks.vlans[0].tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
148 | } |
149 | } | |
150 | ||
81a76618 | 151 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 152 | void |
81a76618 BP |
153 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
154 | struct match *match) | |
155 | { | |
156 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
157 | ||
158 | /* Initialize match->wc. */ | |
296e07ac | 159 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
160 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
161 | ||
162 | /* Initialize most of match->flow. */ | |
163 | match->flow.nw_src = ofmatch->nw_src; | |
164 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 165 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
166 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
167 | match->flow.tp_src = ofmatch->tp_src; | |
168 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
169 | match->flow.dl_src = ofmatch->dl_src; |
170 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
171 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
172 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 173 | |
66642cb4 | 174 | /* Translate VLANs. */ |
0c436519 | 175 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 176 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
177 | /* Match only packets without 802.1Q header. |
178 | * | |
eec25dc1 | 179 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 180 | * |
eec25dc1 | 181 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
182 | * because we can't have a specific PCP without an 802.1Q header. |
183 | * However, older versions of OVS treated this as matching packets | |
184 | * withut an 802.1Q header, so we do here too. */ | |
f0fb825a EG |
185 | match->flow.vlans[0].tci = htons(0); |
186 | match->wc.masks.vlans[0].tci = htons(0xffff); | |
47271d0d BP |
187 | } else { |
188 | ovs_be16 vid, pcp, tci; | |
bf062576 | 189 | uint16_t hpcp; |
47271d0d | 190 | |
81a76618 | 191 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
192 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
193 | pcp = htons(hpcp); | |
47271d0d | 194 | tci = vid | pcp | htons(VLAN_CFI); |
f0fb825a | 195 | match->flow.vlans[0].tci = tci & match->wc.masks.vlans[0].tci; |
66642cb4 BP |
196 | } |
197 | ||
d8ae4d67 | 198 | /* Clean up. */ |
81a76618 | 199 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
200 | } |
201 | ||
81a76618 | 202 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 203 | void |
81a76618 BP |
204 | ofputil_match_to_ofp10_match(const struct match *match, |
205 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 206 | { |
81a76618 | 207 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 208 | uint32_t ofpfw; |
d8ae4d67 | 209 | |
66642cb4 | 210 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 211 | ofpfw = 0; |
4e022ec0 | 212 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
213 | ofpfw |= OFPFW10_IN_PORT; |
214 | } | |
26720e24 | 215 | if (!wc->masks.dl_type) { |
27cafc5f BP |
216 | ofpfw |= OFPFW10_DL_TYPE; |
217 | } | |
26720e24 | 218 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
219 | ofpfw |= OFPFW10_NW_PROTO; |
220 | } | |
26720e24 | 221 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 222 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 223 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 224 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 225 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 226 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 227 | } |
26720e24 | 228 | if (!wc->masks.tp_src) { |
eec25dc1 | 229 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 230 | } |
26720e24 | 231 | if (!wc->masks.tp_dst) { |
eec25dc1 | 232 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 233 | } |
26720e24 | 234 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 235 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 236 | } |
26720e24 | 237 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 238 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 239 | } |
ff9d3826 | 240 | |
66642cb4 | 241 | /* Translate VLANs. */ |
81a76618 BP |
242 | ofmatch->dl_vlan = htons(0); |
243 | ofmatch->dl_vlan_pcp = 0; | |
f0fb825a | 244 | if (match->wc.masks.vlans[0].tci == htons(0)) { |
eec25dc1 | 245 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
f0fb825a EG |
246 | } else if (match->wc.masks.vlans[0].tci & htons(VLAN_CFI) |
247 | && !(match->flow.vlans[0].tci & htons(VLAN_CFI))) { | |
81a76618 | 248 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); |
66642cb4 | 249 | } else { |
f0fb825a | 250 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 251 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 252 | } else { |
f0fb825a EG |
253 | ofmatch->dl_vlan = |
254 | htons(vlan_tci_to_vid(match->flow.vlans[0].tci)); | |
66642cb4 BP |
255 | } |
256 | ||
f0fb825a | 257 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 258 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 259 | } else { |
f0fb825a | 260 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlans[0].tci); |
66642cb4 BP |
261 | } |
262 | } | |
263 | ||
264 | /* Compose most of the match structure. */ | |
81a76618 | 265 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 266 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
267 | ofmatch->dl_src = match->flow.dl_src; |
268 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
269 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
270 | ofmatch->nw_src = match->flow.nw_src; | |
271 | ofmatch->nw_dst = match->flow.nw_dst; | |
272 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
273 | ofmatch->nw_proto = match->flow.nw_proto; | |
274 | ofmatch->tp_src = match->flow.tp_src; | |
275 | ofmatch->tp_dst = match->flow.tp_dst; | |
276 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
277 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
278 | } |
279 | ||
aa319503 | 280 | enum ofperr |
8d8ab6c2 | 281 | ofputil_pull_ofp11_match(struct ofpbuf *buf, const struct tun_table *tun_table, |
3cddeff0 | 282 | const struct vl_mff_map *vl_mff_map, |
8d8ab6c2 | 283 | struct match *match, uint16_t *padded_match_len) |
aa319503 | 284 | { |
6fd6ed71 | 285 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 286 | uint16_t match_len; |
aa319503 | 287 | |
6fd6ed71 | 288 | if (buf->size < sizeof *omh) { |
aa319503 BP |
289 | return OFPERR_OFPBMC_BAD_LEN; |
290 | } | |
291 | ||
36a16881 SH |
292 | match_len = ntohs(omh->length); |
293 | ||
aa319503 | 294 | switch (ntohs(omh->type)) { |
36a16881 SH |
295 | case OFPMT_STANDARD: { |
296 | struct ofp11_match *om; | |
297 | ||
6fd6ed71 | 298 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
299 | return OFPERR_OFPBMC_BAD_LEN; |
300 | } | |
301 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
302 | if (padded_match_len) { |
303 | *padded_match_len = match_len; | |
304 | } | |
81a76618 | 305 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
306 | } |
307 | ||
308 | case OFPMT_OXM: | |
309 | if (padded_match_len) { | |
310 | *padded_match_len = ROUND_UP(match_len, 8); | |
311 | } | |
3cddeff0 | 312 | return oxm_pull_match(buf, tun_table, vl_mff_map, match); |
aa319503 BP |
313 | |
314 | default: | |
315 | return OFPERR_OFPBMC_BAD_TYPE; | |
316 | } | |
317 | } | |
318 | ||
3f0f48cf YT |
319 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
320 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 321 | enum ofperr |
81a76618 BP |
322 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
323 | struct match *match) | |
410698cf | 324 | { |
81a76618 | 325 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 326 | bool ipv4, arp, rarp; |
410698cf | 327 | |
81a76618 | 328 | match_init_catchall(match); |
410698cf BP |
329 | |
330 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 331 | ofp_port_t ofp_port; |
410698cf BP |
332 | enum ofperr error; |
333 | ||
81a76618 | 334 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
335 | if (error) { |
336 | return OFPERR_OFPBMC_BAD_VALUE; | |
337 | } | |
81a76618 | 338 | match_set_in_port(match, ofp_port); |
410698cf BP |
339 | } |
340 | ||
74ff3298 JR |
341 | match_set_dl_src_masked(match, ofmatch->dl_src, |
342 | eth_addr_invert(ofmatch->dl_src_mask)); | |
343 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
344 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
345 | |
346 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 347 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 348 | /* Match only packets without a VLAN tag. */ |
f0fb825a EG |
349 | match->flow.vlans[0].tci = htons(0); |
350 | match->wc.masks.vlans[0].tci = OVS_BE16_MAX; | |
410698cf | 351 | } else { |
81a76618 | 352 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 353 | /* Match any packet with a VLAN tag regardless of VID. */ |
f0fb825a EG |
354 | match->flow.vlans[0].tci = htons(VLAN_CFI); |
355 | match->wc.masks.vlans[0].tci = htons(VLAN_CFI); | |
81a76618 | 356 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { |
410698cf | 357 | /* Match only packets with the specified VLAN VID. */ |
f0fb825a EG |
358 | match->flow.vlans[0].tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
359 | match->wc.masks.vlans[0].tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
360 | } else { |
361 | /* Invalid VID. */ | |
362 | return OFPERR_OFPBMC_BAD_VALUE; | |
363 | } | |
364 | ||
365 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 | 366 | if (ofmatch->dl_vlan_pcp <= 7) { |
f0fb825a | 367 | match->flow.vlans[0].tci |= htons(ofmatch->dl_vlan_pcp |
81a76618 | 368 | << VLAN_PCP_SHIFT); |
f0fb825a | 369 | match->wc.masks.vlans[0].tci |= htons(VLAN_PCP_MASK); |
410698cf BP |
370 | } else { |
371 | /* Invalid PCP. */ | |
372 | return OFPERR_OFPBMC_BAD_VALUE; | |
373 | } | |
374 | } | |
375 | } | |
376 | } | |
377 | ||
378 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
379 | match_set_dl_type(match, |
380 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
381 | } |
382 | ||
81a76618 BP |
383 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
384 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 385 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
386 | |
387 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 388 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
389 | /* Invalid TOS. */ |
390 | return OFPERR_OFPBMC_BAD_VALUE; | |
391 | } | |
392 | ||
81a76618 | 393 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
394 | } |
395 | ||
8087f5ff | 396 | if (ipv4 || arp || rarp) { |
410698cf | 397 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 398 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 399 | } |
81a76618 BP |
400 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
401 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
402 | } |
403 | ||
404 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
405 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 406 | switch (match->flow.nw_proto) { |
410698cf BP |
407 | case IPPROTO_ICMP: |
408 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
409 | * | |
410 | * The tp_src and tp_dst fields will be ignored unless the | |
411 | * network protocol specified is as TCP, UDP or SCTP. | |
412 | * | |
413 | * but I'm pretty sure we should support ICMP too, otherwise | |
414 | * that's a regression from OF1.0. */ | |
415 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 416 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 417 | if (icmp_type < 0x100) { |
81a76618 | 418 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
419 | } else { |
420 | return OFPERR_OFPBMC_BAD_FIELD; | |
421 | } | |
422 | } | |
423 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 424 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 425 | if (icmp_code < 0x100) { |
81a76618 | 426 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
427 | } else { |
428 | return OFPERR_OFPBMC_BAD_FIELD; | |
429 | } | |
430 | } | |
431 | break; | |
432 | ||
433 | case IPPROTO_TCP: | |
434 | case IPPROTO_UDP: | |
0d56eaf2 | 435 | case IPPROTO_SCTP: |
410698cf | 436 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 437 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
438 | } |
439 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 440 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
441 | } |
442 | break; | |
443 | ||
410698cf BP |
444 | default: |
445 | /* OF1.1 says explicitly to ignore this. */ | |
446 | break; | |
447 | } | |
448 | } | |
449 | ||
b02475c5 | 450 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 451 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 452 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
453 | } |
454 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 455 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
456 | } |
457 | } | |
458 | ||
81a76618 BP |
459 | match_set_metadata_masked(match, ofmatch->metadata, |
460 | ~ofmatch->metadata_mask); | |
410698cf BP |
461 | |
462 | return 0; | |
463 | } | |
464 | ||
81a76618 | 465 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 466 | void |
81a76618 BP |
467 | ofputil_match_to_ofp11_match(const struct match *match, |
468 | struct ofp11_match *ofmatch) | |
410698cf BP |
469 | { |
470 | uint32_t wc = 0; | |
410698cf | 471 | |
81a76618 BP |
472 | memset(ofmatch, 0, sizeof *ofmatch); |
473 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
474 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 475 | |
4e022ec0 | 476 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
477 | wc |= OFPFW11_IN_PORT; |
478 | } else { | |
4e022ec0 | 479 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
480 | } |
481 | ||
74ff3298 JR |
482 | ofmatch->dl_src = match->flow.dl_src; |
483 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
484 | ofmatch->dl_dst = match->flow.dl_dst; | |
485 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 486 | |
f0fb825a | 487 | if (match->wc.masks.vlans[0].tci == htons(0)) { |
410698cf | 488 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
f0fb825a EG |
489 | } else if (match->wc.masks.vlans[0].tci & htons(VLAN_CFI) |
490 | && !(match->flow.vlans[0].tci & htons(VLAN_CFI))) { | |
81a76618 | 491 | ofmatch->dl_vlan = htons(OFPVID11_NONE); |
410698cf BP |
492 | wc |= OFPFW11_DL_VLAN_PCP; |
493 | } else { | |
f0fb825a | 494 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_VID_MASK))) { |
81a76618 | 495 | ofmatch->dl_vlan = htons(OFPVID11_ANY); |
410698cf | 496 | } else { |
f0fb825a EG |
497 | ofmatch->dl_vlan = |
498 | htons(vlan_tci_to_vid(match->flow.vlans[0].tci)); | |
410698cf BP |
499 | } |
500 | ||
f0fb825a | 501 | if (!(match->wc.masks.vlans[0].tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
502 | wc |= OFPFW11_DL_VLAN_PCP; |
503 | } else { | |
f0fb825a | 504 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlans[0].tci); |
410698cf BP |
505 | } |
506 | } | |
507 | ||
81a76618 | 508 | if (!match->wc.masks.dl_type) { |
410698cf BP |
509 | wc |= OFPFW11_DL_TYPE; |
510 | } else { | |
81a76618 | 511 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
512 | } |
513 | ||
81a76618 | 514 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
515 | wc |= OFPFW11_NW_TOS; |
516 | } else { | |
81a76618 | 517 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
518 | } |
519 | ||
81a76618 | 520 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
521 | wc |= OFPFW11_NW_PROTO; |
522 | } else { | |
81a76618 | 523 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
524 | } |
525 | ||
81a76618 BP |
526 | ofmatch->nw_src = match->flow.nw_src; |
527 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
528 | ofmatch->nw_dst = match->flow.nw_dst; | |
529 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 530 | |
81a76618 | 531 | if (!match->wc.masks.tp_src) { |
410698cf BP |
532 | wc |= OFPFW11_TP_SRC; |
533 | } else { | |
81a76618 | 534 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
535 | } |
536 | ||
81a76618 | 537 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
538 | wc |= OFPFW11_TP_DST; |
539 | } else { | |
81a76618 | 540 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
541 | } |
542 | ||
8bfd0fda | 543 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
544 | wc |= OFPFW11_MPLS_LABEL; |
545 | } else { | |
8bfd0fda BP |
546 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
547 | match->flow.mpls_lse[0])); | |
097d4939 JR |
548 | } |
549 | ||
8bfd0fda | 550 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
551 | wc |= OFPFW11_MPLS_TC; |
552 | } else { | |
8bfd0fda | 553 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 554 | } |
410698cf | 555 | |
81a76618 BP |
556 | ofmatch->metadata = match->flow.metadata; |
557 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 558 | |
81a76618 | 559 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
560 | } |
561 | ||
75fa58f8 BP |
562 | /* Returns the "typical" length of a match for 'protocol', for use in |
563 | * estimating space to preallocate. */ | |
564 | int | |
565 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
566 | { | |
567 | switch (protocol) { | |
568 | case OFPUTIL_P_OF10_STD: | |
569 | case OFPUTIL_P_OF10_STD_TID: | |
570 | return sizeof(struct ofp10_match); | |
571 | ||
572 | case OFPUTIL_P_OF10_NXM: | |
573 | case OFPUTIL_P_OF10_NXM_TID: | |
574 | return NXM_TYPICAL_LEN; | |
575 | ||
576 | case OFPUTIL_P_OF11_STD: | |
577 | return sizeof(struct ofp11_match); | |
578 | ||
579 | case OFPUTIL_P_OF12_OXM: | |
580 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 581 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 582 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 583 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 BP |
584 | return NXM_TYPICAL_LEN; |
585 | ||
586 | default: | |
428b2edd | 587 | OVS_NOT_REACHED(); |
75fa58f8 BP |
588 | } |
589 | } | |
590 | ||
591 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
592 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
593 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
594 | * in OpenFlow 1.1 or later. | |
595 | * | |
596 | * This function can cause 'b''s data to be reallocated. | |
597 | * | |
598 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
599 | * returns zero. */ | |
600 | int | |
601 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
602 | enum ofputil_protocol protocol) | |
603 | { | |
604 | switch (protocol) { | |
605 | case OFPUTIL_P_OF10_STD: | |
606 | case OFPUTIL_P_OF10_STD_TID: | |
607 | case OFPUTIL_P_OF10_NXM: | |
608 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 609 | OVS_NOT_REACHED(); |
75fa58f8 BP |
610 | |
611 | case OFPUTIL_P_OF11_STD: { | |
612 | struct ofp11_match *om; | |
613 | ||
614 | /* Make sure that no padding is needed. */ | |
615 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
616 | ||
617 | om = ofpbuf_put_uninit(b, sizeof *om); | |
618 | ofputil_match_to_ofp11_match(match, om); | |
619 | return sizeof *om; | |
620 | } | |
621 | ||
622 | case OFPUTIL_P_OF12_OXM: | |
623 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 624 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 625 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 626 | case OFPUTIL_P_OF16_OXM: |
9d84066c BP |
627 | return oxm_put_match(b, match, |
628 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
629 | } |
630 | ||
428b2edd | 631 | OVS_NOT_REACHED(); |
75fa58f8 BP |
632 | } |
633 | ||
36956a7d | 634 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
635 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
636 | * structure. */ | |
36956a7d BP |
637 | ovs_be16 |
638 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
639 | { | |
640 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
641 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
642 | : flow_dl_type); | |
643 | } | |
644 | ||
eec25dc1 | 645 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
646 | * structure, returns the corresponding 'dl_type' value for use in struct |
647 | * flow. */ | |
648 | ovs_be16 | |
649 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
650 | { | |
651 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
652 | ? htons(FLOW_DL_TYPE_NONE) | |
653 | : ofp_dl_type); | |
654 | } | |
2e4f5fcf | 655 | \f |
27527aa0 | 656 | /* Protocols. */ |
7fa91113 | 657 | |
27527aa0 BP |
658 | struct proto_abbrev { |
659 | enum ofputil_protocol protocol; | |
660 | const char *name; | |
661 | }; | |
662 | ||
663 | /* Most users really don't care about some of the differences between | |
aa233d57 | 664 | * protocols. These abbreviations help with that. */ |
27527aa0 | 665 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
666 | { OFPUTIL_P_ANY, "any" }, |
667 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
668 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
669 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
670 | }; |
671 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
672 | ||
673 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
b79d45a1 | 674 | OFPUTIL_P_OF16_OXM, |
42dccab5 | 675 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 676 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 677 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 678 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 679 | OFPUTIL_P_OF11_STD, |
85813857 BP |
680 | OFPUTIL_P_OF10_NXM, |
681 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
682 | }; |
683 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
684 | ||
4f13da56 BP |
685 | /* Returns the set of ofputil_protocols that are supported with the given |
686 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
687 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
688 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 689 | enum ofputil_protocol |
4f13da56 | 690 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
691 | { |
692 | switch (version) { | |
2e3fa633 | 693 | case OFP10_VERSION: |
4f13da56 | 694 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
695 | case OFP11_VERSION: |
696 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 697 | case OFP12_VERSION: |
85813857 | 698 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
699 | case OFP13_VERSION: |
700 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
701 | case OFP14_VERSION: |
702 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
703 | case OFP15_VERSION: |
704 | return OFPUTIL_P_OF15_OXM; | |
b79d45a1 BP |
705 | case OFP16_VERSION: |
706 | return OFPUTIL_P_OF16_OXM; | |
2e3fa633 SH |
707 | default: |
708 | return 0; | |
27527aa0 BP |
709 | } |
710 | } | |
711 | ||
4f13da56 BP |
712 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
713 | * connection that has negotiated the given 'version'. 'version' should | |
714 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
715 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
716 | * outside the valid range. */ | |
717 | enum ofputil_protocol | |
718 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
719 | { | |
720 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
721 | } | |
722 | ||
44d3732d | 723 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 724 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 725 | enum ofp_version |
9e1fd49b BP |
726 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
727 | { | |
728 | switch (protocol) { | |
85813857 BP |
729 | case OFPUTIL_P_OF10_STD: |
730 | case OFPUTIL_P_OF10_STD_TID: | |
731 | case OFPUTIL_P_OF10_NXM: | |
732 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 733 | return OFP10_VERSION; |
75fa58f8 BP |
734 | case OFPUTIL_P_OF11_STD: |
735 | return OFP11_VERSION; | |
85813857 | 736 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 737 | return OFP12_VERSION; |
2e1ae200 JR |
738 | case OFPUTIL_P_OF13_OXM: |
739 | return OFP13_VERSION; | |
c37c0382 AC |
740 | case OFPUTIL_P_OF14_OXM: |
741 | return OFP14_VERSION; | |
42dccab5 BP |
742 | case OFPUTIL_P_OF15_OXM: |
743 | return OFP15_VERSION; | |
b79d45a1 BP |
744 | case OFPUTIL_P_OF16_OXM: |
745 | return OFP16_VERSION; | |
9e1fd49b BP |
746 | } |
747 | ||
428b2edd | 748 | OVS_NOT_REACHED(); |
9e1fd49b BP |
749 | } |
750 | ||
4f13da56 BP |
751 | /* Returns a bitmap of OpenFlow versions that are supported by at |
752 | * least one of the 'protocols'. */ | |
753 | uint32_t | |
754 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
755 | { | |
756 | uint32_t bitmap = 0; | |
757 | ||
758 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
759 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
760 | ||
761 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
762 | } | |
763 | ||
764 | return bitmap; | |
765 | } | |
766 | ||
767 | /* Returns the set of protocols that are supported on top of the | |
768 | * OpenFlow versions included in 'bitmap'. */ | |
769 | enum ofputil_protocol | |
770 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
771 | { | |
772 | enum ofputil_protocol protocols = 0; | |
773 | ||
774 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
775 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
776 | ||
777 | protocols |= ofputil_protocols_from_ofp_version(version); | |
778 | } | |
779 | ||
780 | return protocols; | |
781 | } | |
782 | ||
27527aa0 BP |
783 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
784 | * otherwise. */ | |
7fa91113 | 785 | bool |
27527aa0 | 786 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 787 | { |
27527aa0 BP |
788 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
789 | } | |
790 | ||
791 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
792 | * extension turned on or off if 'enable' is true or false, respectively. | |
793 | * | |
794 | * This extension is only useful for protocols whose "standard" version does | |
795 | * not allow specific tables to be modified. In particular, this is true of | |
796 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
797 | * specifies a table ID and so there is no need for such an extension. When | |
798 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
799 | * extension, this function just returns its 'protocol' argument unchanged | |
800 | * regardless of the value of 'enable'. */ | |
801 | enum ofputil_protocol | |
802 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
803 | { | |
804 | switch (protocol) { | |
85813857 BP |
805 | case OFPUTIL_P_OF10_STD: |
806 | case OFPUTIL_P_OF10_STD_TID: | |
807 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 808 | |
85813857 BP |
809 | case OFPUTIL_P_OF10_NXM: |
810 | case OFPUTIL_P_OF10_NXM_TID: | |
811 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 812 | |
75fa58f8 BP |
813 | case OFPUTIL_P_OF11_STD: |
814 | return OFPUTIL_P_OF11_STD; | |
815 | ||
85813857 BP |
816 | case OFPUTIL_P_OF12_OXM: |
817 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 818 | |
2e1ae200 JR |
819 | case OFPUTIL_P_OF13_OXM: |
820 | return OFPUTIL_P_OF13_OXM; | |
821 | ||
c37c0382 AC |
822 | case OFPUTIL_P_OF14_OXM: |
823 | return OFPUTIL_P_OF14_OXM; | |
824 | ||
42dccab5 BP |
825 | case OFPUTIL_P_OF15_OXM: |
826 | return OFPUTIL_P_OF15_OXM; | |
827 | ||
b79d45a1 BP |
828 | case OFPUTIL_P_OF16_OXM: |
829 | return OFPUTIL_P_OF16_OXM; | |
830 | ||
27527aa0 | 831 | default: |
428b2edd | 832 | OVS_NOT_REACHED(); |
7fa91113 | 833 | } |
27527aa0 | 834 | } |
7fa91113 | 835 | |
27527aa0 BP |
836 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
837 | * some extension to a standard protocol version, the return value is the | |
838 | * standard version of that protocol without any extension. If 'protocol' is a | |
839 | * standard protocol version, returns 'protocol' unchanged. */ | |
840 | enum ofputil_protocol | |
841 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
842 | { | |
843 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
844 | } |
845 | ||
27527aa0 BP |
846 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
847 | enum ofputil_protocol | |
848 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
849 | enum ofputil_protocol new_base) | |
7fa91113 | 850 | { |
27527aa0 BP |
851 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
852 | ||
853 | switch (new_base) { | |
85813857 BP |
854 | case OFPUTIL_P_OF10_STD: |
855 | case OFPUTIL_P_OF10_STD_TID: | |
856 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 857 | |
85813857 BP |
858 | case OFPUTIL_P_OF10_NXM: |
859 | case OFPUTIL_P_OF10_NXM_TID: | |
860 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 861 | |
75fa58f8 BP |
862 | case OFPUTIL_P_OF11_STD: |
863 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
864 | ||
85813857 BP |
865 | case OFPUTIL_P_OF12_OXM: |
866 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 867 | |
2e1ae200 JR |
868 | case OFPUTIL_P_OF13_OXM: |
869 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
870 | ||
c37c0382 AC |
871 | case OFPUTIL_P_OF14_OXM: |
872 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
873 | ||
42dccab5 BP |
874 | case OFPUTIL_P_OF15_OXM: |
875 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
876 | ||
b79d45a1 BP |
877 | case OFPUTIL_P_OF16_OXM: |
878 | return ofputil_protocol_set_tid(OFPUTIL_P_OF16_OXM, tid); | |
879 | ||
7fa91113 | 880 | default: |
428b2edd | 881 | OVS_NOT_REACHED(); |
7fa91113 BP |
882 | } |
883 | } | |
884 | ||
27527aa0 BP |
885 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
886 | * 'protocol' is either a single protocol or it is a combination of protocols | |
887 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
888 | const char * | |
889 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 890 | { |
27527aa0 BP |
891 | const struct proto_abbrev *p; |
892 | ||
893 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
894 | * warning if we forget any. */ | |
895 | switch (protocol) { | |
85813857 | 896 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
897 | return "NXM-table_id"; |
898 | ||
85813857 | 899 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
900 | return "NXM+table_id"; |
901 | ||
85813857 | 902 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
903 | return "OpenFlow10-table_id"; |
904 | ||
85813857 | 905 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 906 | return "OpenFlow10+table_id"; |
44d3732d | 907 | |
75fa58f8 BP |
908 | case OFPUTIL_P_OF11_STD: |
909 | return "OpenFlow11"; | |
910 | ||
85813857 | 911 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 912 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
913 | |
914 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 915 | return "OXM-OpenFlow13"; |
c37c0382 AC |
916 | |
917 | case OFPUTIL_P_OF14_OXM: | |
918 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
919 | |
920 | case OFPUTIL_P_OF15_OXM: | |
921 | return "OXM-OpenFlow15"; | |
b79d45a1 BP |
922 | |
923 | case OFPUTIL_P_OF16_OXM: | |
924 | return "OXM-OpenFlow16"; | |
27527aa0 BP |
925 | } |
926 | ||
927 | /* Check abbreviations. */ | |
928 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
929 | if (protocol == p->protocol) { | |
930 | return p->name; | |
931 | } | |
932 | } | |
933 | ||
934 | return NULL; | |
935 | } | |
936 | ||
937 | /* Returns a string that represents 'protocols'. The return value might be a | |
938 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
939 | * value is "none" if 'protocols' is 0. | |
940 | * | |
941 | * The caller must free the returned string (with free()). */ | |
942 | char * | |
943 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
944 | { | |
945 | struct ds s; | |
946 | ||
cb22974d | 947 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
948 | if (protocols == 0) { |
949 | return xstrdup("none"); | |
950 | } | |
951 | ||
952 | ds_init(&s); | |
953 | while (protocols) { | |
954 | const struct proto_abbrev *p; | |
955 | int i; | |
956 | ||
957 | if (s.length) { | |
958 | ds_put_char(&s, ','); | |
959 | } | |
960 | ||
961 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
962 | if ((protocols & p->protocol) == p->protocol) { | |
963 | ds_put_cstr(&s, p->name); | |
964 | protocols &= ~p->protocol; | |
965 | goto match; | |
966 | } | |
967 | } | |
968 | ||
969 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
970 | enum ofputil_protocol bit = 1u << i; | |
971 | ||
972 | if (protocols & bit) { | |
973 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
974 | protocols &= ~bit; | |
975 | goto match; | |
976 | } | |
977 | } | |
428b2edd | 978 | OVS_NOT_REACHED(); |
27527aa0 BP |
979 | |
980 | match: ; | |
981 | } | |
982 | return ds_steal_cstr(&s); | |
983 | } | |
984 | ||
985 | static enum ofputil_protocol | |
986 | ofputil_protocol_from_string__(const char *s, size_t n) | |
987 | { | |
988 | const struct proto_abbrev *p; | |
989 | int i; | |
990 | ||
991 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
992 | enum ofputil_protocol bit = 1u << i; | |
993 | const char *name = ofputil_protocol_to_string(bit); | |
994 | ||
995 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
996 | return bit; | |
997 | } | |
998 | } | |
999 | ||
1000 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1001 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1002 | return p->protocol; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1010 | * single protocol name or abbreviation or a comma-separated list of them. | |
1011 | * | |
1012 | * Aborts the program with an error message if 's' is invalid. */ | |
1013 | enum ofputil_protocol | |
1014 | ofputil_protocols_from_string(const char *s) | |
1015 | { | |
1016 | const char *orig_s = s; | |
1017 | enum ofputil_protocol protocols; | |
1018 | ||
1019 | protocols = 0; | |
1020 | while (*s) { | |
1021 | enum ofputil_protocol p; | |
1022 | size_t n; | |
1023 | ||
1024 | n = strcspn(s, ","); | |
1025 | if (n == 0) { | |
1026 | s++; | |
1027 | continue; | |
1028 | } | |
1029 | ||
1030 | p = ofputil_protocol_from_string__(s, n); | |
1031 | if (!p) { | |
1032 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1033 | } | |
1034 | protocols |= p; | |
1035 | ||
1036 | s += n; | |
1037 | } | |
1038 | ||
1039 | if (!protocols) { | |
1040 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1041 | } | |
1042 | return protocols; | |
88ca35ee BP |
1043 | } |
1044 | ||
9d84066c | 1045 | enum ofp_version |
03e1125c SH |
1046 | ofputil_version_from_string(const char *s) |
1047 | { | |
1048 | if (!strcasecmp(s, "OpenFlow10")) { | |
1049 | return OFP10_VERSION; | |
1050 | } | |
1051 | if (!strcasecmp(s, "OpenFlow11")) { | |
1052 | return OFP11_VERSION; | |
1053 | } | |
1054 | if (!strcasecmp(s, "OpenFlow12")) { | |
1055 | return OFP12_VERSION; | |
1056 | } | |
2e1ae200 JR |
1057 | if (!strcasecmp(s, "OpenFlow13")) { |
1058 | return OFP13_VERSION; | |
1059 | } | |
c37c0382 AC |
1060 | if (!strcasecmp(s, "OpenFlow14")) { |
1061 | return OFP14_VERSION; | |
1062 | } | |
42dccab5 BP |
1063 | if (!strcasecmp(s, "OpenFlow15")) { |
1064 | return OFP15_VERSION; | |
1065 | } | |
b79d45a1 BP |
1066 | if (!strcasecmp(s, "OpenFlow16")) { |
1067 | return OFP16_VERSION; | |
1068 | } | |
7beaa082 | 1069 | return 0; |
03e1125c SH |
1070 | } |
1071 | ||
1072 | static bool | |
e091ef84 | 1073 | is_delimiter(unsigned char c) |
03e1125c SH |
1074 | { |
1075 | return isspace(c) || c == ','; | |
1076 | } | |
1077 | ||
1078 | uint32_t | |
1079 | ofputil_versions_from_string(const char *s) | |
1080 | { | |
1081 | size_t i = 0; | |
1082 | uint32_t bitmap = 0; | |
1083 | ||
1084 | while (s[i]) { | |
1085 | size_t j; | |
7beaa082 | 1086 | int version; |
03e1125c SH |
1087 | char *key; |
1088 | ||
1089 | if (is_delimiter(s[i])) { | |
1090 | i++; | |
1091 | continue; | |
1092 | } | |
1093 | j = 0; | |
1094 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1095 | j++; | |
1096 | } | |
1097 | key = xmemdup0(s + i, j); | |
1098 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1099 | if (!version) { |
1100 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1101 | } | |
03e1125c SH |
1102 | free(key); |
1103 | bitmap |= 1u << version; | |
1104 | i += j; | |
1105 | } | |
1106 | ||
1107 | return bitmap; | |
1108 | } | |
1109 | ||
7beaa082 SH |
1110 | uint32_t |
1111 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1112 | { | |
1113 | uint32_t bitmap = 0; | |
1114 | ||
1115 | while (count--) { | |
1116 | int version = ofputil_version_from_string(s[count]); | |
1117 | if (!version) { | |
1118 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1119 | } else { | |
1120 | bitmap |= 1u << version; | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | return bitmap; | |
1125 | } | |
1126 | ||
03e1125c SH |
1127 | const char * |
1128 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1129 | { | |
1130 | switch (ofp_version) { | |
1131 | case OFP10_VERSION: | |
1132 | return "OpenFlow10"; | |
1133 | case OFP11_VERSION: | |
1134 | return "OpenFlow11"; | |
1135 | case OFP12_VERSION: | |
1136 | return "OpenFlow12"; | |
2e1ae200 JR |
1137 | case OFP13_VERSION: |
1138 | return "OpenFlow13"; | |
c37c0382 AC |
1139 | case OFP14_VERSION: |
1140 | return "OpenFlow14"; | |
42dccab5 BP |
1141 | case OFP15_VERSION: |
1142 | return "OpenFlow15"; | |
b79d45a1 BP |
1143 | case OFP16_VERSION: |
1144 | return "OpenFlow16"; | |
03e1125c | 1145 | default: |
428b2edd | 1146 | OVS_NOT_REACHED(); |
03e1125c SH |
1147 | } |
1148 | } | |
1149 | ||
54834960 EJ |
1150 | bool |
1151 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1152 | { | |
1153 | switch (packet_in_format) { | |
6409e008 BP |
1154 | case NXPIF_STANDARD: |
1155 | case NXPIF_NXT_PACKET_IN: | |
1156 | case NXPIF_NXT_PACKET_IN2: | |
54834960 EJ |
1157 | return true; |
1158 | } | |
1159 | ||
1160 | return false; | |
1161 | } | |
1162 | ||
1163 | const char * | |
1164 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1165 | { | |
1166 | switch (packet_in_format) { | |
6409e008 BP |
1167 | case NXPIF_STANDARD: |
1168 | return "standard"; | |
1169 | case NXPIF_NXT_PACKET_IN: | |
1170 | return "nxt_packet_in"; | |
1171 | case NXPIF_NXT_PACKET_IN2: | |
1172 | return "nxt_packet_in2"; | |
54834960 | 1173 | default: |
428b2edd | 1174 | OVS_NOT_REACHED(); |
54834960 EJ |
1175 | } |
1176 | } | |
1177 | ||
1178 | int | |
1179 | ofputil_packet_in_format_from_string(const char *s) | |
1180 | { | |
6409e008 BP |
1181 | return (!strcmp(s, "standard") || !strcmp(s, "openflow10") |
1182 | ? NXPIF_STANDARD | |
1183 | : !strcmp(s, "nxt_packet_in") || !strcmp(s, "nxm") | |
1184 | ? NXPIF_NXT_PACKET_IN | |
1185 | : !strcmp(s, "nxt_packet_in2") | |
1186 | ? NXPIF_NXT_PACKET_IN2 | |
54834960 EJ |
1187 | : -1); |
1188 | } | |
1189 | ||
03e1125c SH |
1190 | void |
1191 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1192 | { | |
8989046d | 1193 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1194 | } |
1195 | ||
1196 | void | |
1197 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1198 | { | |
1199 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1200 | } | |
1201 | ||
1202 | static void | |
1203 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1204 | void (*format_version)(struct ds *msg, | |
1205 | enum ofp_version)) | |
1206 | { | |
1207 | while (bitmap) { | |
1208 | format_version(msg, raw_ctz(bitmap)); | |
1209 | bitmap = zero_rightmost_1bit(bitmap); | |
1210 | if (bitmap) { | |
1211 | ds_put_cstr(msg, ", "); | |
1212 | } | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | void | |
1217 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1218 | { | |
1219 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1220 | } | |
1221 | ||
1222 | void | |
1223 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1224 | { | |
1225 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1226 | } | |
1227 | ||
de6c85b0 SH |
1228 | static bool |
1229 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1230 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1231 | { |
1232 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1233 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1234 | uint32_t allowed_versions; |
de6c85b0 SH |
1235 | |
1236 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1237 | return false; | |
1238 | } | |
1239 | ||
1240 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1241 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1242 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1243 | * wire-protocol versions greater than 31. |
1244 | */ | |
0935de41 | 1245 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1246 | |
0935de41 | 1247 | if (allowed_versions & 1) { |
de6c85b0 SH |
1248 | /* There's no OpenFlow version 0. */ |
1249 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1250 | "version 0x00"); | |
0935de41 | 1251 | allowed_versions &= ~1u; |
de6c85b0 SH |
1252 | } |
1253 | ||
0935de41 | 1254 | if (!allowed_versions) { |
de6c85b0 SH |
1255 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1256 | "version (between 0x01 and 0x1f)"); | |
1257 | return false; | |
1258 | } | |
1259 | ||
0935de41 | 1260 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1261 | return true; |
1262 | } | |
1263 | ||
1264 | static uint32_t | |
1265 | version_bitmap_from_version(uint8_t ofp_version) | |
1266 | { | |
1267 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1268 | } | |
1269 | ||
1270 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1271 | * the set of OpenFlow versions for which 'oh' announces support. | |
1272 | * | |
1273 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1274 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1275 | * returns false if 'oh' contains some data that could not be fully understood, | |
1276 | * true if 'oh' was completely parsed. */ | |
1277 | bool | |
1278 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1279 | { | |
0a2869d5 | 1280 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
de6c85b0 SH |
1281 | ofpbuf_pull(&msg, sizeof *oh); |
1282 | ||
1283 | *allowed_versions = version_bitmap_from_version(oh->version); | |
0a2869d5 BP |
1284 | |
1285 | bool ok = true; | |
6fd6ed71 | 1286 | while (msg.size) { |
de6c85b0 SH |
1287 | const struct ofp_hello_elem_header *oheh; |
1288 | unsigned int len; | |
1289 | ||
6fd6ed71 | 1290 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1291 | return false; |
1292 | } | |
1293 | ||
6fd6ed71 | 1294 | oheh = msg.data; |
de6c85b0 SH |
1295 | len = ntohs(oheh->length); |
1296 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1297 | return false; | |
1298 | } | |
1299 | ||
1300 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1301 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1302 | ok = false; | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | return ok; | |
1307 | } | |
1308 | ||
1309 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1310 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1311 | static bool |
de6c85b0 SH |
1312 | should_send_version_bitmap(uint32_t allowed_versions) |
1313 | { | |
1314 | return !is_pow2((allowed_versions >> 1) + 1); | |
1315 | } | |
1316 | ||
1317 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1318 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1319 | struct ofpbuf * | |
1320 | ofputil_encode_hello(uint32_t allowed_versions) | |
1321 | { | |
1322 | enum ofp_version ofp_version; | |
1323 | struct ofpbuf *msg; | |
1324 | ||
1325 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1326 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1327 | ||
1328 | if (should_send_version_bitmap(allowed_versions)) { | |
1329 | struct ofp_hello_elem_header *oheh; | |
1330 | uint16_t map_len; | |
1331 | ||
74c4b9c1 | 1332 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1333 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1334 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1335 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1336 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1337 | |
1338 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1339 | } |
1340 | ||
1341 | return msg; | |
1342 | } | |
1343 | ||
27527aa0 BP |
1344 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1345 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1346 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1347 | * connection if the switch processes the returned message correctly. (If | |
1348 | * '*next != want' then the caller will have to iterate.) | |
1349 | * | |
e43928f2 BP |
1350 | * If 'current == want', or if it is not possible to transition from 'current' |
1351 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1352 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1353 | struct ofpbuf * |
1354 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1355 | enum ofputil_protocol want, | |
1356 | enum ofputil_protocol *next) | |
1357 | { | |
e43928f2 | 1358 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1359 | enum ofputil_protocol cur_base, want_base; |
1360 | bool cur_tid, want_tid; | |
1361 | ||
e43928f2 BP |
1362 | cur_version = ofputil_protocol_to_ofp_version(current); |
1363 | want_version = ofputil_protocol_to_ofp_version(want); | |
1364 | if (cur_version != want_version) { | |
1365 | *next = current; | |
1366 | return NULL; | |
1367 | } | |
1368 | ||
27527aa0 BP |
1369 | cur_base = ofputil_protocol_to_base(current); |
1370 | want_base = ofputil_protocol_to_base(want); | |
1371 | if (cur_base != want_base) { | |
1372 | *next = ofputil_protocol_set_base(current, want_base); | |
1373 | ||
1374 | switch (want_base) { | |
85813857 | 1375 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1376 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1377 | ||
85813857 | 1378 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1379 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1380 | ||
75fa58f8 | 1381 | case OFPUTIL_P_OF11_STD: |
85813857 | 1382 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1383 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1384 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1385 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 1386 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 | 1387 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1388 | * verified above that we're not trying to change versions. */ |
428b2edd | 1389 | OVS_NOT_REACHED(); |
44d3732d | 1390 | |
85813857 BP |
1391 | case OFPUTIL_P_OF10_STD_TID: |
1392 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1393 | OVS_NOT_REACHED(); |
27527aa0 BP |
1394 | } |
1395 | } | |
1396 | ||
1397 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1398 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1399 | if (cur_tid != want_tid) { | |
1400 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1401 | return ofputil_make_flow_mod_table_id(want_tid); | |
1402 | } | |
1403 | ||
cb22974d | 1404 | ovs_assert(current == want); |
27527aa0 BP |
1405 | |
1406 | *next = current; | |
1407 | return NULL; | |
88ca35ee BP |
1408 | } |
1409 | ||
27527aa0 BP |
1410 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1411 | * format to 'nxff'. */ | |
88ca35ee | 1412 | struct ofpbuf * |
27527aa0 | 1413 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1414 | { |
73dbf4ab | 1415 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1416 | struct ofpbuf *msg; |
1417 | ||
cb22974d | 1418 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1419 | |
982697a4 BP |
1420 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1421 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1422 | sff->format = htonl(nxff); |
88ca35ee BP |
1423 | |
1424 | return msg; | |
1425 | } | |
1426 | ||
27527aa0 BP |
1427 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1428 | * otherwise. */ | |
1429 | enum ofputil_protocol | |
1430 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1431 | { | |
1432 | switch (flow_format) { | |
1433 | case NXFF_OPENFLOW10: | |
85813857 | 1434 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1435 | |
1436 | case NXFF_NXM: | |
85813857 | 1437 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1438 | |
1439 | default: | |
1440 | return 0; | |
1441 | } | |
1442 | } | |
1443 | ||
1444 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1445 | bool | |
1446 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1447 | { | |
1448 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1449 | } | |
1450 | ||
1451 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1452 | * value. */ | |
1453 | const char * | |
1454 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1455 | { | |
1456 | switch (flow_format) { | |
1457 | case NXFF_OPENFLOW10: | |
1458 | return "openflow10"; | |
1459 | case NXFF_NXM: | |
1460 | return "nxm"; | |
1461 | default: | |
428b2edd | 1462 | OVS_NOT_REACHED(); |
27527aa0 BP |
1463 | } |
1464 | } | |
1465 | ||
54834960 | 1466 | struct ofpbuf * |
3f4a1939 SH |
1467 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1468 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1469 | { |
73dbf4ab | 1470 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1471 | struct ofpbuf *msg; |
1472 | ||
3f4a1939 | 1473 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1474 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1475 | spif->format = htonl(packet_in_format); |
1476 | ||
1477 | return msg; | |
1478 | } | |
1479 | ||
6c1491fb BP |
1480 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1481 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1482 | struct ofpbuf * | |
1483 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1484 | { | |
73dbf4ab | 1485 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1486 | struct ofpbuf *msg; |
1487 | ||
982697a4 BP |
1488 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1489 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1490 | nfmti->set = flow_mod_table_id; |
1491 | return msg; | |
1492 | } | |
1493 | ||
0fb88c18 BP |
1494 | struct ofputil_flow_mod_flag { |
1495 | uint16_t raw_flag; | |
1496 | enum ofp_version min_version, max_version; | |
1497 | enum ofputil_flow_mod_flags flag; | |
1498 | }; | |
1499 | ||
1500 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1501 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1502 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1503 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1504 | OFPUTIL_FF_EMERG }, | |
1505 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1506 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1507 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1508 | { 0, 0, 0, 0 }, | |
1509 | }; | |
1510 | ||
1511 | static enum ofperr | |
1512 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1513 | enum ofp_flow_mod_command command, | |
1514 | enum ofp_version version, | |
1515 | enum ofputil_flow_mod_flags *flagsp) | |
1516 | { | |
1517 | uint16_t raw_flags = ntohs(raw_flags_); | |
1518 | const struct ofputil_flow_mod_flag *f; | |
1519 | ||
1520 | *flagsp = 0; | |
1521 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1522 | if (raw_flags & f->raw_flag | |
1523 | && version >= f->min_version | |
1524 | && (!f->max_version || version <= f->max_version)) { | |
1525 | raw_flags &= ~f->raw_flag; | |
1526 | *flagsp |= f->flag; | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1531 | * never do. | |
1532 | * | |
1533 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1534 | * resets counters. */ | |
1535 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1536 | && command == OFPFC_ADD) { | |
1537 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1538 | } | |
1539 | ||
1540 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1541 | } | |
1542 | ||
1543 | static ovs_be16 | |
1544 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1545 | enum ofp_version version) | |
1546 | { | |
1547 | const struct ofputil_flow_mod_flag *f; | |
1548 | uint16_t raw_flags; | |
1549 | ||
1550 | raw_flags = 0; | |
1551 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1552 | if (f->flag & flags | |
1553 | && version >= f->min_version | |
1554 | && (!f->max_version || version <= f->max_version)) { | |
1555 | raw_flags |= f->raw_flag; | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | return htons(raw_flags); | |
1560 | } | |
1561 | ||
7fa91113 BP |
1562 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1563 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1564 | * code. | |
1565 | * | |
f25d0cf3 BP |
1566 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1567 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1568 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1569 | * | |
1570 | * Does not validate the flow_mod actions. The caller should do that, with | |
1571 | * ofpacts_check(). */ | |
90bf1e07 | 1572 | enum ofperr |
a9a2da38 | 1573 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1574 | const struct ofp_header *oh, |
f25d0cf3 | 1575 | enum ofputil_protocol protocol, |
8d8ab6c2 | 1576 | const struct tun_table *tun_table, |
04f48a68 | 1577 | const struct vl_mff_map *vl_mff_map, |
7e9f8266 BP |
1578 | struct ofpbuf *ofpacts, |
1579 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1580 | { |
0fb88c18 BP |
1581 | ovs_be16 raw_flags; |
1582 | enum ofperr error; | |
0a2869d5 BP |
1583 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
1584 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
aa319503 | 1585 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1586 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1587 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1588 | |
bbc32a88 | 1589 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1590 | |
3cddeff0 YHW |
1591 | error = ofputil_pull_ofp11_match(&b, tun_table, vl_mff_map, &fm->match, |
1592 | NULL); | |
aa319503 BP |
1593 | if (error) { |
1594 | return error; | |
1c0b7503 BP |
1595 | } |
1596 | ||
2e4f5fcf | 1597 | /* Translate the message. */ |
81a76618 | 1598 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1599 | if (ofm->command == OFPFC_ADD |
1600 | || (oh->version == OFP11_VERSION | |
1601 | && (ofm->command == OFPFC_MODIFY || | |
1602 | ofm->command == OFPFC_MODIFY_STRICT) | |
1603 | && ofm->cookie_mask == htonll(0))) { | |
1604 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1605 | * not match on the cookie is treated as an "add" if there is no | |
1606 | * match. */ | |
aa319503 BP |
1607 | fm->cookie = htonll(0); |
1608 | fm->cookie_mask = htonll(0); | |
1609 | fm->new_cookie = ofm->cookie; | |
1610 | } else { | |
aa319503 BP |
1611 | fm->cookie = ofm->cookie; |
1612 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1613 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1614 | } |
23342857 | 1615 | fm->modify_cookie = false; |
aa319503 | 1616 | fm->command = ofm->command; |
0e197060 BP |
1617 | |
1618 | /* Get table ID. | |
1619 | * | |
083761ad SH |
1620 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1621 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1622 | fm->table_id = ofm->table_id; |
083761ad | 1623 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1624 | && (oh->version == OFP11_VERSION |
1625 | || (ofm->command != OFPFC_DELETE && | |
1626 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1627 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1628 | } | |
1629 | ||
2e4f5fcf BP |
1630 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1631 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1632 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1633 | fm->importance = ntohs(ofm->importance); | |
1634 | } else { | |
1635 | fm->importance = 0; | |
1636 | } | |
2e4f5fcf | 1637 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1638 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1639 | if (error) { |
1640 | return error; | |
1641 | } | |
7395c052 | 1642 | |
1fe4c0a0 BP |
1643 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1644 | ofm->command == OFPFC_DELETE_STRICT | |
1645 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1646 | : OFPG_ANY); |
0fb88c18 | 1647 | raw_flags = ofm->flags; |
aa319503 | 1648 | } else { |
0fb88c18 BP |
1649 | uint16_t command; |
1650 | ||
aa319503 BP |
1651 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1652 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1653 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1654 | |
1655 | /* Get the ofp10_flow_mod. */ | |
1656 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1657 | ||
aa319503 | 1658 | /* Translate the rule. */ |
81a76618 BP |
1659 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1660 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1661 | |
81a76618 BP |
1662 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1663 | * highest possible priority. */ | |
1664 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1665 | ? ntohs(ofm->priority) | |
1666 | : UINT16_MAX); | |
1667 | ||
aa319503 BP |
1668 | /* Translate the message. */ |
1669 | command = ntohs(ofm->command); | |
1670 | fm->cookie = htonll(0); | |
1671 | fm->cookie_mask = htonll(0); | |
1672 | fm->new_cookie = ofm->cookie; | |
1673 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1674 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1675 | fm->importance = 0; |
aa319503 | 1676 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1677 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1678 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1679 | raw_flags = ofm->flags; |
aa319503 BP |
1680 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1681 | /* Nicira extended flow_mod. */ | |
1682 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1683 | |
1684 | /* Dissect the message. */ | |
1685 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 | 1686 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
8d8ab6c2 | 1687 | &fm->match, &fm->cookie, &fm->cookie_mask, |
3cddeff0 | 1688 | tun_table, vl_mff_map); |
aa319503 BP |
1689 | if (error) { |
1690 | return error; | |
1691 | } | |
aa319503 BP |
1692 | |
1693 | /* Translate the message. */ | |
1694 | command = ntohs(nfm->command); | |
1695 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1696 | /* Flow additions may only set a new cookie, not match an | |
1697 | * existing cookie. */ | |
1698 | return OFPERR_NXBRC_NXM_INVALID; | |
1699 | } | |
81a76618 | 1700 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1701 | fm->new_cookie = nfm->cookie; |
1702 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1703 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1704 | fm->importance = 0; |
aa319503 | 1705 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1706 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1707 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1708 | raw_flags = nfm->flags; |
aa319503 | 1709 | } else { |
428b2edd | 1710 | OVS_NOT_REACHED(); |
aa319503 BP |
1711 | } |
1712 | ||
b8266395 | 1713 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1714 | if (protocol & OFPUTIL_P_TID) { |
1715 | fm->command = command & 0xff; | |
1716 | fm->table_id = command >> 8; | |
1717 | } else { | |
1f42be1c JR |
1718 | if (command > 0xff) { |
1719 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1720 | "but flow_mod_table_id extension is not enabled"); | |
1721 | } | |
aa319503 BP |
1722 | fm->command = command; |
1723 | fm->table_id = 0xff; | |
e729e793 | 1724 | } |
2e4f5fcf BP |
1725 | } |
1726 | ||
e75aad80 JR |
1727 | /* Check for mismatched conntrack original direction tuple address fields |
1728 | * w.r.t. the IP version of the match. */ | |
1729 | if (((fm->match.wc.masks.ct_nw_src || fm->match.wc.masks.ct_nw_dst) | |
1730 | && fm->match.flow.dl_type != htons(ETH_TYPE_IP)) | |
1731 | || ((ipv6_addr_is_set(&fm->match.wc.masks.ct_ipv6_src) | |
1732 | || ipv6_addr_is_set(&fm->match.wc.masks.ct_ipv6_dst)) | |
1733 | && fm->match.flow.dl_type != htons(ETH_TYPE_IPV6))) { | |
1734 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; | |
1735 | } | |
1736 | ||
1f42be1c JR |
1737 | if (fm->command > OFPFC_DELETE_STRICT) { |
1738 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1739 | } | |
1740 | ||
5c7c16d8 | 1741 | fm->ofpacts_tlv_bitmap = 0; |
04f48a68 | 1742 | error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version, |
5c7c16d8 YHW |
1743 | vl_mff_map, |
1744 | &fm->ofpacts_tlv_bitmap, | |
1745 | ofpacts); | |
8f2cded4 BP |
1746 | if (error) { |
1747 | return error; | |
1748 | } | |
6fd6ed71 PS |
1749 | fm->ofpacts = ofpacts->data; |
1750 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1751 | |
0fb88c18 BP |
1752 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1753 | oh->version, &fm->flags); | |
1754 | if (error) { | |
1755 | return error; | |
1756 | } | |
1757 | ||
1758 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1759 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1760 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1761 | * | |
1762 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1763 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1764 | * code, so just state that the flow table is full. */ | |
1765 | return (fm->hard_timeout || fm->idle_timeout | |
1766 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1767 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1768 | } | |
1769 | ||
ba2fe8e9 | 1770 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
67210a55 | 1771 | &fm->match, max_port, |
ba2fe8e9 | 1772 | fm->table_id, max_table, protocol); |
2e4f5fcf BP |
1773 | } |
1774 | ||
638a19b0 JR |
1775 | static enum ofperr |
1776 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1777 | struct ofpbuf *bands) | |
1778 | { | |
1779 | const struct ofp13_meter_band_header *ombh; | |
1780 | struct ofputil_meter_band *mb; | |
1781 | uint16_t n = 0; | |
1782 | ||
1783 | ombh = ofpbuf_try_pull(msg, len); | |
1784 | if (!ombh) { | |
1785 | return OFPERR_OFPBRC_BAD_LEN; | |
1786 | } | |
1787 | ||
1788 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1789 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1790 | /* All supported band types have the same length. */ |
638a19b0 JR |
1791 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1792 | return OFPERR_OFPBRC_BAD_LEN; | |
1793 | } | |
1794 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1795 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1796 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1797 | return OFPERR_OFPMMFC_BAD_BAND; | |
1798 | } | |
638a19b0 JR |
1799 | mb->rate = ntohl(ombh->rate); |
1800 | mb->burst_size = ntohl(ombh->burst_size); | |
1801 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1802 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1803 | n++; | |
1804 | len -= ombh_len; | |
db5a1019 AW |
1805 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1806 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1807 | } |
1808 | if (len) { | |
1809 | return OFPERR_OFPBRC_BAD_LEN; | |
1810 | } | |
1811 | *n_bands = n; | |
1812 | return 0; | |
1813 | } | |
1814 | ||
1815 | enum ofperr | |
1816 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1817 | struct ofputil_meter_mod *mm, | |
1818 | struct ofpbuf *bands) | |
1819 | { | |
0a2869d5 | 1820 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
638a19b0 | 1821 | ofpraw_pull_assert(&b); |
0a2869d5 | 1822 | const struct ofp13_meter_mod *omm = ofpbuf_pull(&b, sizeof *omm); |
638a19b0 JR |
1823 | |
1824 | /* Translate the message. */ | |
1825 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1826 | if (mm->command != OFPMC13_ADD && |
1827 | mm->command != OFPMC13_MODIFY && | |
1828 | mm->command != OFPMC13_DELETE) { | |
1829 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1830 | } | |
638a19b0 JR |
1831 | mm->meter.meter_id = ntohl(omm->meter_id); |
1832 | ||
1833 | if (mm->command == OFPMC13_DELETE) { | |
1834 | mm->meter.flags = 0; | |
1835 | mm->meter.n_bands = 0; | |
1836 | mm->meter.bands = NULL; | |
1837 | } else { | |
1838 | enum ofperr error; | |
1839 | ||
1840 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1841 | if (mm->meter.flags & OFPMF13_KBPS && |
1842 | mm->meter.flags & OFPMF13_PKTPS) { | |
1843 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1844 | } | |
6fd6ed71 | 1845 | mm->meter.bands = bands->data; |
638a19b0 | 1846 | |
6fd6ed71 | 1847 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1848 | if (error) { |
1849 | return error; | |
1850 | } | |
1851 | } | |
1852 | return 0; | |
1853 | } | |
1854 | ||
1855 | void | |
1856 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1857 | { | |
1858 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1859 | *meter_id = ntohl(omr->meter_id); | |
1860 | } | |
1861 | ||
1862 | struct ofpbuf * | |
1863 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1864 | enum ofputil_meter_request_type type, | |
1865 | uint32_t meter_id) | |
1866 | { | |
1867 | struct ofpbuf *msg; | |
1868 | ||
1869 | enum ofpraw raw; | |
1870 | ||
1871 | switch (type) { | |
1872 | case OFPUTIL_METER_CONFIG: | |
1873 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1874 | break; | |
1875 | case OFPUTIL_METER_STATS: | |
1876 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1877 | break; | |
1878 | default: | |
1879 | case OFPUTIL_METER_FEATURES: | |
1880 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1881 | break; | |
1882 | } | |
1883 | ||
1884 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1885 | ||
1886 | if (type != OFPUTIL_METER_FEATURES) { | |
1887 | struct ofp13_meter_multipart_request *omr; | |
1888 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1889 | omr->meter_id = htonl(meter_id); | |
1890 | } | |
1891 | return msg; | |
1892 | } | |
1893 | ||
1894 | static void | |
1895 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1896 | struct ofpbuf *msg) | |
1897 | { | |
1898 | uint16_t n = 0; | |
1899 | ||
1900 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1901 | /* Currently all band types have same size. */ |
638a19b0 JR |
1902 | struct ofp13_meter_band_dscp_remark *ombh; |
1903 | size_t ombh_len = sizeof *ombh; | |
1904 | ||
1905 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1906 | ||
1907 | ombh->type = htons(mb->type); | |
1908 | ombh->len = htons(ombh_len); | |
1909 | ombh->rate = htonl(mb->rate); | |
1910 | ombh->burst_size = htonl(mb->burst_size); | |
1911 | ombh->prec_level = mb->prec_level; | |
1912 | ||
1913 | mb++; | |
1914 | } | |
1915 | } | |
1916 | ||
1917 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1918 | void | |
ca6ba700 | 1919 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1920 | const struct ofputil_meter_config *mc) |
1921 | { | |
417e7e66 | 1922 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 1923 | size_t start_ofs = msg->size; |
6a5490c6 | 1924 | struct ofp13_meter_config *reply; |
638a19b0 | 1925 | |
6a5490c6 | 1926 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1927 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1928 | ||
32756a57 | 1929 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1930 | reply->flags = htons(mc->flags); |
1931 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1932 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1933 | |
1934 | ofpmp_postappend(replies, start_ofs); | |
1935 | } | |
1936 | ||
1937 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1938 | void | |
ca6ba700 | 1939 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1940 | const struct ofputil_meter_stats *ms) |
1941 | { | |
1942 | struct ofp13_meter_stats *reply; | |
1943 | uint16_t n = 0; | |
1944 | uint16_t len; | |
1945 | ||
1946 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1947 | reply = ofpmp_append(replies, len); | |
1948 | ||
1949 | reply->meter_id = htonl(ms->meter_id); | |
1950 | reply->len = htons(len); | |
1951 | memset(reply->pad, 0, sizeof reply->pad); | |
1952 | reply->flow_count = htonl(ms->flow_count); | |
1953 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1954 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1955 | reply->duration_sec = htonl(ms->duration_sec); | |
1956 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1957 | ||
1958 | for (n = 0; n < ms->n_bands; ++n) { | |
1959 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1960 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1961 | ||
1962 | dst->packet_band_count = htonll(src->packet_count); | |
1963 | dst->byte_band_count = htonll(src->byte_count); | |
1964 | } | |
1965 | } | |
1966 | ||
1967 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1968 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1969 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1970 | * it across the call. | |
1971 | * | |
1972 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1973 | * message. Calling this function multiple times for a single 'msg' iterates | |
1974 | * through the replies. 'bands' is cleared for each reply. | |
1975 | * | |
1976 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1977 | * otherwise a positive errno value. */ | |
1978 | int | |
1979 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1980 | struct ofputil_meter_config *mc, | |
1981 | struct ofpbuf *bands) | |
1982 | { | |
1983 | const struct ofp13_meter_config *omc; | |
1984 | enum ofperr err; | |
1985 | ||
1986 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1987 | if (!msg->header) { |
638a19b0 JR |
1988 | ofpraw_pull_assert(msg); |
1989 | } | |
1990 | ||
6fd6ed71 | 1991 | if (!msg->size) { |
638a19b0 JR |
1992 | return EOF; |
1993 | } | |
1994 | ||
1995 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1996 | if (!omc) { | |
0445637d | 1997 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1998 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 1999 | msg->size); |
638a19b0 JR |
2000 | return OFPERR_OFPBRC_BAD_LEN; |
2001 | } | |
2002 | ||
2003 | ofpbuf_clear(bands); | |
2004 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2005 | &mc->n_bands, bands); | |
2006 | if (err) { | |
2007 | return err; | |
2008 | } | |
2009 | mc->meter_id = ntohl(omc->meter_id); | |
2010 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2011 | mc->bands = bands->data; |
638a19b0 JR |
2012 | |
2013 | return 0; | |
2014 | } | |
2015 | ||
2016 | static enum ofperr | |
2017 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2018 | struct ofpbuf *bands) | |
2019 | { | |
2020 | const struct ofp13_meter_band_stats *ombs; | |
2021 | struct ofputil_meter_band_stats *mbs; | |
2022 | uint16_t n, i; | |
2023 | ||
0445637d JR |
2024 | ombs = ofpbuf_try_pull(msg, len); |
2025 | if (!ombs) { | |
2026 | return OFPERR_OFPBRC_BAD_LEN; | |
2027 | } | |
2028 | ||
638a19b0 JR |
2029 | n = len / sizeof *ombs; |
2030 | if (len != n * sizeof *ombs) { | |
2031 | return OFPERR_OFPBRC_BAD_LEN; | |
2032 | } | |
2033 | ||
638a19b0 JR |
2034 | mbs = ofpbuf_put_uninit(bands, len); |
2035 | ||
2036 | for (i = 0; i < n; ++i) { | |
2037 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2038 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2039 | } | |
2040 | *n_bands = n; | |
2041 | return 0; | |
2042 | } | |
2043 | ||
2044 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2045 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2046 | * decoded into 'bands'. | |
2047 | * | |
2048 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2049 | * message. Calling this function multiple times for a single 'msg' iterates | |
2050 | * through the replies. 'bands' is cleared for each reply. | |
2051 | * | |
2052 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2053 | * otherwise a positive errno value. */ | |
2054 | int | |
2055 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2056 | struct ofputil_meter_stats *ms, | |
2057 | struct ofpbuf *bands) | |
2058 | { | |
2059 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2060 | enum ofperr err; |
2061 | ||
2062 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2063 | if (!msg->header) { |
638a19b0 JR |
2064 | ofpraw_pull_assert(msg); |
2065 | } | |
2066 | ||
6fd6ed71 | 2067 | if (!msg->size) { |
638a19b0 JR |
2068 | return EOF; |
2069 | } | |
2070 | ||
2071 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2072 | if (!oms) { | |
0445637d | 2073 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2074 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2075 | msg->size); |
638a19b0 JR |
2076 | return OFPERR_OFPBRC_BAD_LEN; |
2077 | } | |
638a19b0 JR |
2078 | |
2079 | ofpbuf_clear(bands); | |
0445637d JR |
2080 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2081 | &ms->n_bands, bands); | |
638a19b0 JR |
2082 | if (err) { |
2083 | return err; | |
2084 | } | |
2085 | ms->meter_id = ntohl(oms->meter_id); | |
2086 | ms->flow_count = ntohl(oms->flow_count); | |
2087 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2088 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2089 | ms->duration_sec = ntohl(oms->duration_sec); | |
2090 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2091 | ms->bands = bands->data; |
638a19b0 JR |
2092 | |
2093 | return 0; | |
2094 | } | |
2095 | ||
2096 | void | |
2097 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2098 | struct ofputil_meter_features *mf) | |
2099 | { | |
2100 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2101 | ||
2102 | mf->max_meters = ntohl(omf->max_meter); | |
2103 | mf->band_types = ntohl(omf->band_types); | |
2104 | mf->capabilities = ntohl(omf->capabilities); | |
2105 | mf->max_bands = omf->max_bands; | |
2106 | mf->max_color = omf->max_color; | |
2107 | } | |
2108 | ||
2109 | struct ofpbuf * | |
2110 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2111 | const struct ofp_header *request) | |
2112 | { | |
2113 | struct ofpbuf *reply; | |
2114 | struct ofp13_meter_features *omf; | |
2115 | ||
2116 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2117 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2118 | ||
2119 | omf->max_meter = htonl(mf->max_meters); | |
2120 | omf->band_types = htonl(mf->band_types); | |
2121 | omf->capabilities = htonl(mf->capabilities); | |
2122 | omf->max_bands = mf->max_bands; | |
2123 | omf->max_color = mf->max_color; | |
2124 | ||
2125 | return reply; | |
2126 | } | |
2127 | ||
2128 | struct ofpbuf * | |
2129 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2130 | const struct ofputil_meter_mod *mm) | |
2131 | { | |
2132 | struct ofpbuf *msg; | |
2133 | ||
2134 | struct ofp13_meter_mod *omm; | |
2135 | ||
2136 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2137 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2138 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2139 | omm->command = htons(mm->command); | |
2140 | if (mm->command != OFPMC13_DELETE) { | |
2141 | omm->flags = htons(mm->meter.flags); | |
2142 | } | |
2143 | omm->meter_id = htonl(mm->meter.meter_id); | |
2144 | ||
2145 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2146 | ||
2147 | ofpmsg_update_length(msg); | |
2148 | return msg; | |
2149 | } | |
2150 | ||
aa6305ea SH |
2151 | static ovs_be16 |
2152 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2153 | enum ofputil_protocol protocol) | |
2154 | { | |
2155 | return htons(protocol & OFPUTIL_P_TID | |
2156 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2157 | : fm->command); | |
2158 | } | |
2159 | ||
2e4f5fcf | 2160 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2161 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2162 | struct ofpbuf * |
a9a2da38 | 2163 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2164 | enum ofputil_protocol protocol) |
2e4f5fcf | 2165 | { |
0fb88c18 BP |
2166 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2167 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2168 | struct ofpbuf *msg; |
2169 | ||
27527aa0 | 2170 | switch (protocol) { |
75fa58f8 | 2171 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2172 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2173 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2174 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2175 | case OFPUTIL_P_OF15_OXM: |
2176 | case OFPUTIL_P_OF16_OXM: { | |
aa6305ea | 2177 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2178 | int tailroom; |
aa6305ea | 2179 | |
75fa58f8 | 2180 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2181 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2182 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2183 | if ((protocol == OFPUTIL_P_OF11_STD |
2184 | && (fm->command == OFPFC_MODIFY || | |
2185 | fm->command == OFPFC_MODIFY_STRICT) | |
2186 | && fm->cookie_mask == htonll(0)) | |
2187 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2188 | ofm->cookie = fm->new_cookie; |
2189 | } else { | |
ba5cc068 | 2190 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2191 | } |
aa6305ea | 2192 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2193 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2194 | || (protocol != OFPUTIL_P_OF11_STD |
2195 | && (fm->command == OFPFC_DELETE || | |
2196 | fm->command == OFPFC_DELETE_STRICT))) { | |
2197 | ofm->table_id = fm->table_id; | |
2198 | } else { | |
2199 | ofm->table_id = 0; | |
2200 | } | |
aa6305ea SH |
2201 | ofm->command = fm->command; |
2202 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2203 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2204 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2205 | ofm->buffer_id = htonl(fm->buffer_id); |
2206 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2207 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2208 | ofm->flags = raw_flags; |
ca26eb44 RB |
2209 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2210 | ofm->importance = htons(fm->importance); | |
2211 | } else { | |
2212 | ofm->importance = 0; | |
2213 | } | |
75fa58f8 | 2214 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2215 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2216 | version); | |
aa6305ea SH |
2217 | break; |
2218 | } | |
2219 | ||
85813857 BP |
2220 | case OFPUTIL_P_OF10_STD: |
2221 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2222 | struct ofp10_flow_mod *ofm; |
2223 | ||
982697a4 BP |
2224 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2225 | fm->ofpacts_len); | |
2226 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2227 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2228 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2229 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2230 | ofm->idle_timeout = htons(fm->idle_timeout); |
2231 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2232 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2233 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2234 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2235 | ofm->flags = raw_flags; |
e3f8f887 JR |
2236 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2237 | version); | |
27527aa0 | 2238 | break; |
3f192f23 | 2239 | } |
2e4f5fcf | 2240 | |
85813857 BP |
2241 | case OFPUTIL_P_OF10_NXM: |
2242 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2243 | struct nx_flow_mod *nfm; |
2244 | int match_len; | |
2245 | ||
982697a4 BP |
2246 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2247 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2248 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2249 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2250 | nfm->cookie = fm->new_cookie; |
81a76618 | 2251 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2252 | nfm = msg->msg; |
2e4f5fcf BP |
2253 | nfm->idle_timeout = htons(fm->idle_timeout); |
2254 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2255 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2256 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2257 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2258 | nfm->flags = raw_flags; |
2e4f5fcf | 2259 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2260 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2261 | version); | |
27527aa0 | 2262 | break; |
3f192f23 | 2263 | } |
27527aa0 BP |
2264 | |
2265 | default: | |
428b2edd | 2266 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2267 | } |
2268 | ||
982697a4 | 2269 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2270 | return msg; |
2271 | } | |
2272 | ||
90bf1e07 | 2273 | static enum ofperr |
0157ad3a SH |
2274 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2275 | const struct ofp10_flow_stats_request *ofsr, | |
2276 | bool aggregate) | |
2e4f5fcf | 2277 | { |
2e4f5fcf | 2278 | fsr->aggregate = aggregate; |
81a76618 | 2279 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2280 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2281 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2282 | fsr->table_id = ofsr->table_id; |
e729e793 | 2283 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2284 | |
2285 | return 0; | |
2286 | } | |
2287 | ||
0157ad3a SH |
2288 | static enum ofperr |
2289 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
8d8ab6c2 | 2290 | struct ofpbuf *b, bool aggregate, |
3cddeff0 YHW |
2291 | const struct tun_table *tun_table, |
2292 | const struct vl_mff_map *vl_mff_map) | |
0157ad3a SH |
2293 | { |
2294 | const struct ofp11_flow_stats_request *ofsr; | |
2295 | enum ofperr error; | |
2296 | ||
2297 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2298 | fsr->aggregate = aggregate; | |
2299 | fsr->table_id = ofsr->table_id; | |
2300 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2301 | if (error) { | |
2302 | return error; | |
2303 | } | |
7395c052 | 2304 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2305 | fsr->cookie = ofsr->cookie; |
2306 | fsr->cookie_mask = ofsr->cookie_mask; | |
3cddeff0 YHW |
2307 | error = ofputil_pull_ofp11_match(b, tun_table, vl_mff_map, &fsr->match, |
2308 | NULL); | |
0157ad3a SH |
2309 | if (error) { |
2310 | return error; | |
2311 | } | |
2312 | ||
2313 | return 0; | |
2314 | } | |
2315 | ||
90bf1e07 | 2316 | static enum ofperr |
81d1ea94 | 2317 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 | 2318 | struct ofpbuf *b, bool aggregate, |
3cddeff0 YHW |
2319 | const struct tun_table *tun_table, |
2320 | const struct vl_mff_map *vl_mff_map) | |
2e4f5fcf BP |
2321 | { |
2322 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2323 | enum ofperr error; |
2e4f5fcf | 2324 | |
982697a4 | 2325 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2326 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
3cddeff0 YHW |
2327 | &fsr->cookie, &fsr->cookie_mask, tun_table, |
2328 | vl_mff_map); | |
2e4f5fcf BP |
2329 | if (error) { |
2330 | return error; | |
2331 | } | |
6fd6ed71 | 2332 | if (b->size) { |
90bf1e07 | 2333 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2334 | } |
2335 | ||
2336 | fsr->aggregate = aggregate; | |
4e022ec0 | 2337 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2338 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2339 | fsr->table_id = nfsr->table_id; |
2340 | ||
2341 | return 0; | |
2342 | } | |
2343 | ||
e8f9a7bb | 2344 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2345 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2346 | * | |
2347 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2348 | * request all queues. */ | |
e8f9a7bb VG |
2349 | struct ofpbuf * |
2350 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2351 | ofp_port_t port, |
2352 | uint32_t queue) | |
e8f9a7bb VG |
2353 | { |
2354 | struct ofpbuf *request; | |
2355 | ||
2356 | if (version == OFP10_VERSION) { | |
2357 | struct ofp10_queue_get_config_request *qgcr10; | |
2358 | ||
2359 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2360 | version, 0); | |
2361 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2362 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2363 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2364 | struct ofp11_queue_get_config_request *qgcr11; |
2365 | ||
2366 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2367 | version, 0); | |
2368 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2369 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2370 | } else { |
2371 | struct ofp14_queue_desc_request *qdr14; | |
2372 | ||
2373 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2374 | version, 0); | |
2375 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2376 | qdr14->port = ofputil_port_to_ofp11(port); | |
2377 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2378 | } |
2379 | ||
2380 | return request; | |
2381 | } | |
2382 | ||
2383 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2384 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2385 | * code. */ | |
2386 | enum ofperr | |
2387 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2388 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2389 | { |
2390 | const struct ofp10_queue_get_config_request *qgcr10; | |
2391 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2392 | const struct ofp14_queue_desc_request *qdr14; |
0a2869d5 BP |
2393 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2394 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
e8f9a7bb VG |
2395 | |
2396 | switch ((int) raw) { | |
2397 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2398 | qgcr10 = b.data; |
e8f9a7bb | 2399 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2400 | *queue = OFPQ_ALL; |
56085be5 | 2401 | break; |
e8f9a7bb VG |
2402 | |
2403 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2404 | qgcr11 = b.data; |
e016fb63 | 2405 | *queue = OFPQ_ALL; |
56085be5 BP |
2406 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2407 | if (error || *port == OFPP_ANY) { | |
2408 | return error; | |
2409 | } | |
2410 | break; | |
2411 | ||
e016fb63 BP |
2412 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2413 | qdr14 = b.data; | |
2414 | *queue = ntohl(qdr14->queue); | |
2415 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2416 | ||
56085be5 BP |
2417 | default: |
2418 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2419 | } |
2420 | ||
56085be5 BP |
2421 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2422 | ? 0 | |
2423 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2424 | } |
2425 | ||
2426 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2427 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2428 | * may append information about individual queues with | |
2429 | * ofputil_append_queue_get_config_reply(). */ | |
2430 | void | |
2431 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2432 | struct ovs_list *replies) | |
e8f9a7bb | 2433 | { |
e8f9a7bb VG |
2434 | struct ofpbuf *reply; |
2435 | enum ofperr error; | |
e8f9a7bb | 2436 | ofp_port_t port; |
e016fb63 | 2437 | uint32_t queue; |
e8f9a7bb | 2438 | |
e016fb63 | 2439 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2440 | ovs_assert(!error); |
2441 | ||
e016fb63 | 2442 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2443 | switch ((int) raw) { |
2444 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2445 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2446 | request, 0); |
2447 | struct ofp10_queue_get_config_reply *qgcr10 | |
2448 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2449 | qgcr10->port = htons(ofp_to_u16(port)); |
2450 | break; | |
2451 | ||
2452 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2453 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2454 | request, 0); |
2455 | struct ofp11_queue_get_config_reply *qgcr11 | |
2456 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2457 | qgcr11->port = ofputil_port_to_ofp11(port); |
2458 | break; | |
2459 | ||
e016fb63 BP |
2460 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2461 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2462 | break; | |
2463 | ||
e8f9a7bb | 2464 | default: |
428b2edd | 2465 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2466 | } |
2467 | ||
417e7e66 BW |
2468 | ovs_list_init(replies); |
2469 | ovs_list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2470 | } |
2471 | ||
2472 | static void | |
d2e5fa1f BP |
2473 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2474 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2475 | { |
2476 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2477 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2478 | |
2479 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2480 | oqpr->prop_header.property = htons(property); | |
2481 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2482 | oqpr->rate = htons(rate); | |
2483 | } | |
2484 | } | |
2485 | ||
e016fb63 BP |
2486 | static void |
2487 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2488 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2489 | { | |
2490 | if (rate != UINT16_MAX) { | |
2491 | ofpprop_put_u16(reply, type, rate); | |
2492 | } | |
2493 | } | |
2494 | ||
e8f9a7bb | 2495 | void |
e016fb63 BP |
2496 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2497 | struct ovs_list *replies) | |
e8f9a7bb | 2498 | { |
e016fb63 | 2499 | enum ofp_version ofp_version = ofpmp_version(replies); |
417e7e66 | 2500 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
e016fb63 BP |
2501 | size_t start_ofs = reply->size; |
2502 | size_t len_ofs; | |
e8f9a7bb VG |
2503 | ovs_be16 *len; |
2504 | ||
e016fb63 BP |
2505 | if (ofp_version < OFP14_VERSION) { |
2506 | if (ofp_version < OFP12_VERSION) { | |
2507 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2508 | |
e016fb63 BP |
2509 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2510 | opq10->queue_id = htonl(qc->queue); | |
2511 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2512 | } else { | |
2513 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2514 | |
e016fb63 BP |
2515 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2516 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2517 | opq12->queue_id = htonl(qc->queue); | |
2518 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2519 | } | |
e8f9a7bb | 2520 | |
e016fb63 BP |
2521 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2522 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2523 | } else { | |
2524 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2525 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2526 | oqd->queue_id = htonl(qc->queue); | |
2527 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2528 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2529 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2530 | } | |
e8f9a7bb VG |
2531 | |
2532 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2533 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2534 | |
e016fb63 BP |
2535 | if (ofp_version >= OFP14_VERSION) { |
2536 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2537 | } |
e8f9a7bb VG |
2538 | } |
2539 | ||
2540 | static enum ofperr | |
d2e5fa1f BP |
2541 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2542 | uint16_t *rate) | |
e8f9a7bb | 2543 | { |
d2e5fa1f | 2544 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2545 | |
2546 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2547 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2548 | *rate = ntohs(oqpr->rate); |
2549 | return 0; | |
2550 | } else { | |
2551 | return OFPERR_OFPBRC_BAD_LEN; | |
2552 | } | |
2553 | } | |
2554 | ||
e016fb63 BP |
2555 | static int |
2556 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2557 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2558 | { |
e016fb63 BP |
2559 | const struct ofp_header *oh = msg->header; |
2560 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2561 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2562 | |
e016fb63 BP |
2563 | /* Obtain the port number from the message header. */ |
2564 | if (oh->version == OFP10_VERSION) { | |
2565 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2566 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2567 | } else { | |
2568 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2569 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2570 | &queue->port); | |
2571 | if (error) { | |
2572 | return error; | |
2573 | } | |
e8f9a7bb VG |
2574 | } |
2575 | ||
e016fb63 | 2576 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2577 | if (oh->version < OFP12_VERSION) { |
2578 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2579 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2580 | if (!opq10) { |
2581 | return OFPERR_OFPBRC_BAD_LEN; | |
2582 | } | |
e016fb63 | 2583 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2584 | len = ntohs(opq10->len); |
2585 | opq_len = sizeof *opq10; | |
2586 | } else { | |
2587 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2588 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2589 | if (!opq12) { |
2590 | return OFPERR_OFPBRC_BAD_LEN; | |
2591 | } | |
e016fb63 | 2592 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2593 | len = ntohs(opq12->len); |
2594 | opq_len = sizeof *opq12; | |
2595 | } | |
2596 | ||
e016fb63 BP |
2597 | /* Length check. */ |
2598 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2599 | return OFPERR_OFPBRC_BAD_LEN; |
2600 | } | |
2601 | len -= opq_len; | |
2602 | ||
e016fb63 BP |
2603 | /* Pull properties. The format of these properties differs from used in |
2604 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2605 | while (len > 0) { |
d2e5fa1f | 2606 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2607 | unsigned int property; |
2608 | unsigned int prop_len; | |
2609 | enum ofperr error = 0; | |
2610 | ||
e016fb63 | 2611 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2612 | prop_len = ntohs(hdr->len); |
fafbfa6e | 2613 | if (prop_len < sizeof *hdr || prop_len > len || prop_len % 8) { |
e8f9a7bb VG |
2614 | return OFPERR_OFPBRC_BAD_LEN; |
2615 | } | |
2616 | ||
2617 | property = ntohs(hdr->property); | |
2618 | switch (property) { | |
d2e5fa1f BP |
2619 | case OFPQT10_MIN_RATE: |
2620 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2621 | break; |
2622 | ||
d2e5fa1f BP |
2623 | case OFPQT11_MAX_RATE: |
2624 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2625 | break; |
2626 | ||
2627 | default: | |
2628 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2629 | break; | |
2630 | } | |
2631 | if (error) { | |
2632 | return error; | |
2633 | } | |
2634 | ||
e016fb63 | 2635 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2636 | len -= prop_len; |
2637 | } | |
2638 | return 0; | |
2639 | } | |
2640 | ||
e016fb63 BP |
2641 | static int |
2642 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2643 | struct ofputil_queue_config *queue) | |
2644 | { | |
2645 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2646 | if (!oqd14) { | |
2647 | return OFPERR_OFPBRC_BAD_LEN; | |
2648 | } | |
2649 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2650 | if (error) { | |
2651 | return error; | |
2652 | } | |
2653 | queue->queue = ntohl(oqd14->queue_id); | |
2654 | ||
2655 | /* Length check. */ | |
2656 | unsigned int len = ntohs(oqd14->len); | |
2657 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2658 | return OFPERR_OFPBRC_BAD_LEN; | |
2659 | } | |
2660 | len -= sizeof *oqd14; | |
2661 | ||
0a2869d5 BP |
2662 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
2663 | len); | |
e016fb63 BP |
2664 | while (properties.size > 0) { |
2665 | struct ofpbuf payload; | |
2666 | uint64_t type; | |
2667 | ||
2668 | error = ofpprop_pull(&properties, &payload, &type); | |
2669 | if (error) { | |
2670 | return error; | |
2671 | } | |
2672 | ||
2673 | switch (type) { | |
2674 | case OFPQDPT14_MIN_RATE: | |
2675 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2676 | break; | |
2677 | ||
2678 | case OFPQDPT14_MAX_RATE: | |
2679 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2680 | break; | |
2681 | ||
2682 | default: | |
2683 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2684 | break; | |
2685 | } | |
2686 | ||
2687 | if (error) { | |
2688 | return error; | |
2689 | } | |
2690 | } | |
2691 | ||
2692 | return 0; | |
2693 | } | |
2694 | ||
2695 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2696 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2697 | * must already have pulled off the main header. | |
2698 | * | |
2699 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2700 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2701 | * problem decoding 'reply'. */ | |
2702 | int | |
2703 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2704 | struct ofputil_queue_config *queue) | |
2705 | { | |
2706 | enum ofpraw raw; | |
2707 | if (!msg->header) { | |
2708 | /* Pull OpenFlow header. */ | |
2709 | raw = ofpraw_pull_assert(msg); | |
2710 | ||
2711 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2712 | * doesn't have one at all). */ | |
2713 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2714 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2715 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2716 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2717 | } else { | |
2718 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2719 | } | |
2720 | } else { | |
2721 | raw = ofpraw_decode_assert(msg->header); | |
2722 | } | |
2723 | ||
2724 | queue->min_rate = UINT16_MAX; | |
2725 | queue->max_rate = UINT16_MAX; | |
2726 | ||
2727 | if (!msg->size) { | |
2728 | return EOF; | |
2729 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2730 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2731 | } else { | |
2732 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2733 | } | |
2734 | } | |
2735 | ||
2e4f5fcf | 2736 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 | 2737 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
3cddeff0 YHW |
2738 | * successful, otherwise an OpenFlow error code. |
2739 | * | |
2740 | * 'vl_mff_map' is an optional parameter that is used to validate the length | |
2741 | * of variable length mf_fields in 'match'. If it is not provided, the | |
2742 | * default mf_fields with maximum length will be used. */ | |
90bf1e07 | 2743 | enum ofperr |
81d1ea94 | 2744 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 | 2745 | const struct ofp_header *oh, |
3cddeff0 YHW |
2746 | const struct tun_table *tun_table, |
2747 | const struct vl_mff_map *vl_mff_map) | |
2e4f5fcf | 2748 | { |
0a2869d5 BP |
2749 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2750 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 2751 | switch ((int) raw) { |
cfc23141 | 2752 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2753 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2754 | |
617da9cd | 2755 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2756 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2757 | |
2758 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
3cddeff0 YHW |
2759 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false, tun_table, |
2760 | vl_mff_map); | |
2e4f5fcf | 2761 | |
617da9cd | 2762 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
3cddeff0 YHW |
2763 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true, tun_table, |
2764 | vl_mff_map); | |
617da9cd | 2765 | |
982697a4 | 2766 | case OFPRAW_NXST_FLOW_REQUEST: |
3cddeff0 YHW |
2767 | return ofputil_decode_nxst_flow_request(fsr, &b, false, tun_table, |
2768 | vl_mff_map); | |
2e4f5fcf | 2769 | |
982697a4 | 2770 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
3cddeff0 YHW |
2771 | return ofputil_decode_nxst_flow_request(fsr, &b, true, tun_table, |
2772 | vl_mff_map); | |
2e4f5fcf BP |
2773 | |
2774 | default: | |
2775 | /* Hey, the caller lied. */ | |
428b2edd | 2776 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2777 | } |
2778 | } | |
2779 | ||
2780 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2781 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2782 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2783 | struct ofpbuf * |
81d1ea94 | 2784 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2785 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2786 | { |
2787 | struct ofpbuf *msg; | |
982697a4 | 2788 | enum ofpraw raw; |
2e4f5fcf | 2789 | |
27527aa0 | 2790 | switch (protocol) { |
75fa58f8 | 2791 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2792 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2793 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2794 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2795 | case OFPUTIL_P_OF15_OXM: |
2796 | case OFPUTIL_P_OF16_OXM: { | |
06516c65 SH |
2797 | struct ofp11_flow_stats_request *ofsr; |
2798 | ||
2799 | raw = (fsr->aggregate | |
617da9cd | 2800 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2801 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2802 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2803 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2804 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2805 | ofsr->table_id = fsr->table_id; | |
2806 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2807 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2808 | ofsr->cookie = fsr->cookie; |
2809 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2810 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2811 | break; |
2812 | } | |
2813 | ||
85813857 BP |
2814 | case OFPUTIL_P_OF10_STD: |
2815 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2816 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2817 | |
982697a4 | 2818 | raw = (fsr->aggregate |
617da9cd | 2819 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2820 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2821 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2822 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2823 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2824 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2825 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2826 | break; |
2827 | } | |
2828 | ||
85813857 BP |
2829 | case OFPUTIL_P_OF10_NXM: |
2830 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2831 | struct nx_flow_stats_request *nfsr; |
2832 | int match_len; | |
2833 | ||
982697a4 BP |
2834 | raw = (fsr->aggregate |
2835 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2836 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2837 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2838 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2839 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2840 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2841 | |
6fd6ed71 | 2842 | nfsr = msg->msg; |
4e022ec0 | 2843 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2844 | nfsr->match_len = htons(match_len); |
2845 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2846 | break; |
2847 | } | |
2848 | ||
2849 | default: | |
428b2edd | 2850 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2851 | } |
2852 | ||
2853 | return msg; | |
2854 | } | |
d1e2cf21 | 2855 | |
4ffd1b43 | 2856 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2857 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2858 | * |
2859 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2860 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2861 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2862 | * pointers null and not modify them between calls. | |
2863 | * | |
f27f2134 BP |
2864 | * Most switches don't send the values needed to populate fs->idle_age and |
2865 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2866 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2867 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2868 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2869 | * | |
f25d0cf3 BP |
2870 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2871 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2872 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2873 | * | |
4ffd1b43 BP |
2874 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2875 | * otherwise a positive errno value. */ | |
2876 | int | |
2877 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2878 | struct ofpbuf *msg, |
f25d0cf3 BP |
2879 | bool flow_age_extension, |
2880 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2881 | { |
0fb88c18 | 2882 | const struct ofp_header *oh; |
8f2cded4 | 2883 | size_t instructions_len; |
982697a4 BP |
2884 | enum ofperr error; |
2885 | enum ofpraw raw; | |
4ffd1b43 | 2886 | |
6fd6ed71 | 2887 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2888 | : ofpraw_pull(&raw, msg)); |
2889 | if (error) { | |
2890 | return error; | |
4ffd1b43 | 2891 | } |
6fd6ed71 | 2892 | oh = msg->header; |
4ffd1b43 | 2893 | |
6fd6ed71 | 2894 | if (!msg->size) { |
4ffd1b43 | 2895 | return EOF; |
2e1ae200 JR |
2896 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2897 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2898 | const struct ofp11_flow_stats *ofs; |
2899 | size_t length; | |
2900 | uint16_t padded_match_len; | |
2901 | ||
2902 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2903 | if (!ofs) { | |
437d0d22 | 2904 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2905 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2906 | return EINVAL; |
2907 | } | |
2908 | ||
2909 | length = ntohs(ofs->length); | |
2910 | if (length < sizeof *ofs) { | |
2911 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2912 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2913 | return EINVAL; |
2914 | } | |
2915 | ||
3cddeff0 | 2916 | if (ofputil_pull_ofp11_match(msg, NULL, NULL, &fs->match, |
8d8ab6c2 | 2917 | &padded_match_len)) { |
6ec5f0c5 SH |
2918 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2919 | return EINVAL; | |
2920 | } | |
8f2cded4 | 2921 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2922 | |
81a76618 | 2923 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2924 | fs->table_id = ofs->table_id; |
2925 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2926 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2927 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2928 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2929 | if (oh->version >= OFP14_VERSION) { |
2930 | fs->importance = ntohs(ofs->importance); | |
2931 | } else { | |
2932 | fs->importance = 0; | |
2933 | } | |
0fb88c18 BP |
2934 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2935 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2936 | &fs->flags); | |
2937 | if (error) { | |
2938 | return error; | |
2939 | } | |
2940 | } else { | |
2941 | fs->flags = 0; | |
2942 | } | |
6ec5f0c5 SH |
2943 | fs->idle_age = -1; |
2944 | fs->hard_age = -1; | |
2945 | fs->cookie = ofs->cookie; | |
2946 | fs->packet_count = ntohll(ofs->packet_count); | |
2947 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2948 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2949 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2950 | size_t length; |
2951 | ||
2952 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2953 | if (!ofs) { | |
437d0d22 | 2954 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2955 | "bytes at end", msg->size); |
4ffd1b43 BP |
2956 | return EINVAL; |
2957 | } | |
2958 | ||
2959 | length = ntohs(ofs->length); | |
2960 | if (length < sizeof *ofs) { | |
2961 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2962 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2963 | return EINVAL; |
2964 | } | |
8f2cded4 | 2965 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2966 | |
2967 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2968 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2969 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2970 | fs->table_id = ofs->table_id; |
2971 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2972 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2973 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2974 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2975 | fs->importance = 0; |
f27f2134 BP |
2976 | fs->idle_age = -1; |
2977 | fs->hard_age = -1; | |
4ffd1b43 BP |
2978 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2979 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2980 | fs->flags = 0; |
982697a4 | 2981 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2982 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2983 | size_t match_len, length; |
4ffd1b43 BP |
2984 | |
2985 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2986 | if (!nfs) { | |
437d0d22 | 2987 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2988 | "bytes at end", msg->size); |
4ffd1b43 BP |
2989 | return EINVAL; |
2990 | } | |
2991 | ||
2992 | length = ntohs(nfs->length); | |
2993 | match_len = ntohs(nfs->match_len); | |
2994 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2995 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2996 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2997 | return EINVAL; |
2998 | } | |
3cddeff0 YHW |
2999 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL, NULL, |
3000 | NULL)) { | |
4ffd1b43 BP |
3001 | return EINVAL; |
3002 | } | |
8f2cded4 | 3003 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
3004 | |
3005 | fs->cookie = nfs->cookie; | |
3006 | fs->table_id = nfs->table_id; | |
3007 | fs->duration_sec = ntohl(nfs->duration_sec); | |
3008 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 3009 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
3010 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
3011 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 3012 | fs->importance = 0; |
f27f2134 BP |
3013 | fs->idle_age = -1; |
3014 | fs->hard_age = -1; | |
3015 | if (flow_age_extension) { | |
3016 | if (nfs->idle_age) { | |
3017 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
3018 | } | |
3019 | if (nfs->hard_age) { | |
3020 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
3021 | } | |
3022 | } | |
4ffd1b43 BP |
3023 | fs->packet_count = ntohll(nfs->packet_count); |
3024 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 3025 | fs->flags = 0; |
4ffd1b43 | 3026 | } else { |
428b2edd | 3027 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
3028 | } |
3029 | ||
8f2cded4 | 3030 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
5c7c16d8 | 3031 | NULL, NULL, ofpacts)) { |
8f2cded4 BP |
3032 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); |
3033 | return EINVAL; | |
3034 | } | |
6fd6ed71 PS |
3035 | fs->ofpacts = ofpacts->data; |
3036 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3037 | |
4ffd1b43 BP |
3038 | return 0; |
3039 | } | |
3040 | ||
5e9d0469 BP |
3041 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3042 | * | |
3043 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3044 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3045 | static uint64_t | |
3046 | unknown_to_zero(uint64_t count) | |
3047 | { | |
3048 | return count != UINT64_MAX ? count : 0; | |
3049 | } | |
3050 | ||
349adfb2 BP |
3051 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3052 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3053 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3054 | void |
3055 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
8d8ab6c2 JG |
3056 | struct ovs_list *replies, |
3057 | const struct tun_table *tun_table) | |
349adfb2 | 3058 | { |
8d8ab6c2 JG |
3059 | struct ofputil_flow_stats *fs_ = CONST_CAST(struct ofputil_flow_stats *, |
3060 | fs); | |
3061 | const struct tun_table *orig_tun_table; | |
417e7e66 | 3062 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 3063 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3064 | enum ofp_version version = ofpmp_version(replies); |
3065 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3066 | |
8d8ab6c2 JG |
3067 | orig_tun_table = fs->match.flow.tunnel.metadata.tab; |
3068 | fs_->match.flow.tunnel.metadata.tab = tun_table; | |
3069 | ||
2e1ae200 | 3070 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3071 | struct ofp11_flow_stats *ofs; |
3072 | ||
3073 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3074 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3075 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3076 | version); | |
22a86f18 SH |
3077 | |
3078 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3079 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3080 | ofs->table_id = fs->table_id; |
3081 | ofs->pad = 0; | |
3082 | ofs->duration_sec = htonl(fs->duration_sec); | |
3083 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3084 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3085 | ofs->idle_timeout = htons(fs->idle_timeout); |
3086 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3087 | if (version >= OFP14_VERSION) { |
3088 | ofs->importance = htons(fs->importance); | |
3089 | } else { | |
3090 | ofs->importance = 0; | |
3091 | } | |
0fb88c18 | 3092 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3093 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3094 | } else { |
3095 | ofs->flags = 0; | |
3096 | } | |
22a86f18 SH |
3097 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3098 | ofs->cookie = fs->cookie; | |
3099 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3100 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3101 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3102 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3103 | |
1a59dc2c | 3104 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3105 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3106 | version); | |
1a59dc2c | 3107 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3108 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3109 | ofs->table_id = fs->table_id; |
3110 | ofs->pad = 0; | |
81a76618 | 3111 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3112 | ofs->duration_sec = htonl(fs->duration_sec); |
3113 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3114 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3115 | ofs->idle_timeout = htons(fs->idle_timeout); |
3116 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3117 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3118 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3119 | put_32aligned_be64(&ofs->packet_count, |
3120 | htonll(unknown_to_zero(fs->packet_count))); | |
3121 | put_32aligned_be64(&ofs->byte_count, | |
3122 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3123 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3124 | struct nx_flow_stats *nfs; |
1a59dc2c | 3125 | int match_len; |
349adfb2 | 3126 | |
1a59dc2c | 3127 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3128 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3129 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3130 | version); | |
1a59dc2c | 3131 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3132 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3133 | nfs->table_id = fs->table_id; |
3134 | nfs->pad = 0; | |
3135 | nfs->duration_sec = htonl(fs->duration_sec); | |
3136 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3137 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3138 | nfs->idle_timeout = htons(fs->idle_timeout); |
3139 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3140 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3141 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3142 | : UINT16_MAX); | |
3143 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3144 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3145 | : UINT16_MAX); | |
1a59dc2c | 3146 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3147 | nfs->cookie = fs->cookie; |
3148 | nfs->packet_count = htonll(fs->packet_count); | |
3149 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3150 | } else { |
428b2edd | 3151 | OVS_NOT_REACHED(); |
349adfb2 | 3152 | } |
f25d0cf3 | 3153 | |
982697a4 | 3154 | ofpmp_postappend(replies, start_ofs); |
8d8ab6c2 | 3155 | fs_->match.flow.tunnel.metadata.tab = orig_tun_table; |
349adfb2 BP |
3156 | } |
3157 | ||
76c93b22 | 3158 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3159 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3160 | struct ofpbuf * |
3161 | ofputil_encode_aggregate_stats_reply( | |
3162 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3163 | const struct ofp_header *request) |
76c93b22 | 3164 | { |
a814ba0f BP |
3165 | struct ofp_aggregate_stats_reply *asr; |
3166 | uint64_t packet_count; | |
3167 | uint64_t byte_count; | |
76c93b22 | 3168 | struct ofpbuf *msg; |
982697a4 | 3169 | enum ofpraw raw; |
76c93b22 | 3170 | |
982697a4 | 3171 | ofpraw_decode(&raw, request); |
617da9cd | 3172 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3173 | packet_count = unknown_to_zero(stats->packet_count); |
3174 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3175 | } else { |
a814ba0f BP |
3176 | packet_count = stats->packet_count; |
3177 | byte_count = stats->byte_count; | |
76c93b22 BP |
3178 | } |
3179 | ||
a814ba0f BP |
3180 | msg = ofpraw_alloc_stats_reply(request, 0); |
3181 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3182 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3183 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3184 | asr->flow_count = htonl(stats->flow_count); | |
3185 | ||
76c93b22 BP |
3186 | return msg; |
3187 | } | |
3188 | ||
982697a4 BP |
3189 | enum ofperr |
3190 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3191 | const struct ofp_header *reply) | |
3192 | { | |
0a2869d5 | 3193 | struct ofpbuf msg = ofpbuf_const_initializer(reply, ntohs(reply->length)); |
a814ba0f BP |
3194 | ofpraw_pull_assert(&msg); |
3195 | ||
0a2869d5 | 3196 | struct ofp_aggregate_stats_reply *asr = msg.msg; |
a814ba0f BP |
3197 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3198 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3199 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3200 | |
3201 | return 0; | |
3202 | } | |
3203 | ||
b78f6b77 BP |
3204 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3205 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3206 | * an OpenFlow error code. */ | |
90bf1e07 | 3207 | enum ofperr |
9b045a0c | 3208 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3209 | const struct ofp_header *oh) |
9b045a0c | 3210 | { |
0a2869d5 BP |
3211 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3212 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3213 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3214 | const struct ofp12_flow_removed *ofr; | |
3215 | enum ofperr error; | |
3216 | ||
3217 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3218 | ||
3cddeff0 | 3219 | error = ofputil_pull_ofp11_match(&b, NULL, NULL, &fr->match, NULL); |
eefbf181 SH |
3220 | if (error) { |
3221 | return error; | |
3222 | } | |
3223 | ||
81a76618 | 3224 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3225 | fr->cookie = ofr->cookie; |
3226 | fr->reason = ofr->reason; | |
95216219 | 3227 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3228 | fr->duration_sec = ntohl(ofr->duration_sec); |
3229 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3230 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3231 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3232 | fr->packet_count = ntohll(ofr->packet_count); | |
3233 | fr->byte_count = ntohll(ofr->byte_count); | |
3234 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3235 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3236 | |
982697a4 BP |
3237 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3238 | ||
81a76618 BP |
3239 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3240 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3241 | fr->cookie = ofr->cookie; |
3242 | fr->reason = ofr->reason; | |
95216219 | 3243 | fr->table_id = 255; |
9b045a0c BP |
3244 | fr->duration_sec = ntohl(ofr->duration_sec); |
3245 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3246 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3247 | fr->hard_timeout = 0; |
9b045a0c BP |
3248 | fr->packet_count = ntohll(ofr->packet_count); |
3249 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3250 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3251 | struct nx_flow_removed *nfr; |
c2725b60 | 3252 | enum ofperr error; |
9b045a0c | 3253 | |
9b045a0c | 3254 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
8d8ab6c2 | 3255 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, NULL, |
3cddeff0 | 3256 | NULL, NULL, NULL); |
9b045a0c BP |
3257 | if (error) { |
3258 | return error; | |
3259 | } | |
6fd6ed71 | 3260 | if (b.size) { |
90bf1e07 | 3261 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3262 | } |
3263 | ||
81a76618 | 3264 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3265 | fr->cookie = nfr->cookie; |
3266 | fr->reason = nfr->reason; | |
745bfd5e | 3267 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3268 | fr->duration_sec = ntohl(nfr->duration_sec); |
3269 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3270 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3271 | fr->hard_timeout = 0; |
9b045a0c BP |
3272 | fr->packet_count = ntohll(nfr->packet_count); |
3273 | fr->byte_count = ntohll(nfr->byte_count); | |
3274 | } else { | |
428b2edd | 3275 | OVS_NOT_REACHED(); |
9b045a0c BP |
3276 | } |
3277 | ||
3278 | return 0; | |
3279 | } | |
3280 | ||
588cd7b5 | 3281 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3282 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3283 | * message. */ |
3284 | struct ofpbuf * | |
3285 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3286 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3287 | { |
3288 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3289 | enum ofp_flow_removed_reason reason = fr->reason; |
3290 | ||
3291 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3292 | reason = OFPRR_DELETE; | |
3293 | } | |
588cd7b5 | 3294 | |
27527aa0 | 3295 | switch (protocol) { |
75fa58f8 | 3296 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3297 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3298 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 3299 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
3300 | case OFPUTIL_P_OF15_OXM: |
3301 | case OFPUTIL_P_OF16_OXM: { | |
83974732 SH |
3302 | struct ofp12_flow_removed *ofr; |
3303 | ||
3304 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3305 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3306 | htonl(0), |
3307 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3308 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3309 | ofr->cookie = fr->cookie; | |
81a76618 | 3310 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3311 | ofr->reason = reason; |
95216219 | 3312 | ofr->table_id = fr->table_id; |
83974732 SH |
3313 | ofr->duration_sec = htonl(fr->duration_sec); |
3314 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3315 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3316 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3317 | ofr->packet_count = htonll(fr->packet_count); |
3318 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3319 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3320 | break; |
3321 | } | |
3322 | ||
85813857 BP |
3323 | case OFPUTIL_P_OF10_STD: |
3324 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3325 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3326 | |
982697a4 BP |
3327 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3328 | htonl(0), 0); | |
3329 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3330 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3331 | ofr->cookie = fr->cookie; |
81a76618 | 3332 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3333 | ofr->reason = reason; |
588cd7b5 BP |
3334 | ofr->duration_sec = htonl(fr->duration_sec); |
3335 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3336 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3337 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3338 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3339 | break; |
3340 | } | |
3341 | ||
85813857 BP |
3342 | case OFPUTIL_P_OF10_NXM: |
3343 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3344 | struct nx_flow_removed *nfr; |
3345 | int match_len; | |
3346 | ||
982697a4 BP |
3347 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3348 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3349 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3350 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3351 | |
6fd6ed71 | 3352 | nfr = msg->msg; |
588cd7b5 | 3353 | nfr->cookie = fr->cookie; |
81a76618 | 3354 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3355 | nfr->reason = reason; |
745bfd5e | 3356 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3357 | nfr->duration_sec = htonl(fr->duration_sec); |
3358 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3359 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3360 | nfr->match_len = htons(match_len); | |
3361 | nfr->packet_count = htonll(fr->packet_count); | |
3362 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3363 | break; |
3364 | } | |
3365 | ||
3366 | default: | |
428b2edd | 3367 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3368 | } |
3369 | ||
3370 | return msg; | |
3371 | } | |
3372 | ||
6409e008 BP |
3373 | /* The caller has done basic initialization of '*pin'; the other output |
3374 | * arguments needs to be initialized. */ | |
3375 | static enum ofperr | |
77ab5fd2 | 3376 | decode_nx_packet_in2(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3377 | const struct tun_table *tun_table, |
3cddeff0 | 3378 | const struct vl_mff_map *vl_mff_map, |
6409e008 | 3379 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3380 | size_t *total_len, uint32_t *buffer_id, |
3381 | struct ofpbuf *continuation) | |
6409e008 BP |
3382 | { |
3383 | *total_len = 0; | |
3384 | *buffer_id = UINT32_MAX; | |
3385 | ||
3386 | struct ofpbuf properties; | |
3387 | ofpbuf_use_const(&properties, oh, ntohs(oh->length)); | |
3388 | ofpraw_pull_assert(&properties); | |
3389 | ||
3390 | while (properties.size > 0) { | |
3391 | struct ofpbuf payload; | |
3392 | uint64_t type; | |
3393 | ||
3394 | enum ofperr error = ofpprop_pull(&properties, &payload, &type); | |
3395 | if (error) { | |
3396 | return error; | |
3397 | } | |
3398 | ||
3399 | switch (type) { | |
3400 | case NXPINT_PACKET: | |
3401 | pin->packet = payload.msg; | |
4adaf182 | 3402 | pin->packet_len = ofpbuf_msgsize(&payload); |
6409e008 BP |
3403 | break; |
3404 | ||
3405 | case NXPINT_FULL_LEN: { | |
3406 | uint32_t u32; | |
3407 | error = ofpprop_parse_u32(&payload, &u32); | |
3408 | *total_len = u32; | |
3409 | break; | |
3410 | } | |
3411 | ||
3412 | case NXPINT_BUFFER_ID: | |
3413 | error = ofpprop_parse_u32(&payload, buffer_id); | |
3414 | break; | |
3415 | ||
3416 | case NXPINT_TABLE_ID: | |
3417 | error = ofpprop_parse_u8(&payload, &pin->table_id); | |
3418 | break; | |
3419 | ||
3420 | case NXPINT_COOKIE: | |
3421 | error = ofpprop_parse_be64(&payload, &pin->cookie); | |
3422 | break; | |
3423 | ||
3424 | case NXPINT_REASON: { | |
3425 | uint8_t reason; | |
3426 | error = ofpprop_parse_u8(&payload, &reason); | |
3427 | pin->reason = reason; | |
3428 | break; | |
3429 | } | |
3430 | ||
3431 | case NXPINT_METADATA: | |
87450a4e | 3432 | error = oxm_decode_match(payload.msg, ofpbuf_msgsize(&payload), |
3cddeff0 YHW |
3433 | loose, tun_table, vl_mff_map, |
3434 | &pin->flow_metadata); | |
6409e008 BP |
3435 | break; |
3436 | ||
bdcad671 BP |
3437 | case NXPINT_USERDATA: |
3438 | pin->userdata = payload.msg; | |
3439 | pin->userdata_len = ofpbuf_msgsize(&payload); | |
3440 | break; | |
3441 | ||
77ab5fd2 BP |
3442 | case NXPINT_CONTINUATION: |
3443 | if (continuation) { | |
3444 | error = ofpprop_parse_nested(&payload, continuation); | |
3445 | } | |
3446 | break; | |
3447 | ||
6409e008 | 3448 | default: |
77ab5fd2 | 3449 | error = OFPPROP_UNKNOWN(loose, "NX_PACKET_IN2", type); |
6409e008 BP |
3450 | break; |
3451 | } | |
3452 | if (error) { | |
3453 | return error; | |
3454 | } | |
3455 | } | |
3456 | ||
4adaf182 | 3457 | if (!pin->packet_len) { |
6409e008 BP |
3458 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 lacks packet"); |
3459 | return OFPERR_OFPBRC_BAD_LEN; | |
3460 | } else if (!*total_len) { | |
4adaf182 BP |
3461 | *total_len = pin->packet_len; |
3462 | } else if (*total_len < pin->packet_len) { | |
6409e008 BP |
3463 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 claimed full_len < len"); |
3464 | return OFPERR_OFPBRC_BAD_LEN; | |
3465 | } | |
3466 | ||
3467 | return 0; | |
3468 | } | |
3469 | ||
9bfe9334 | 3470 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
77ab5fd2 BP |
3471 | * 'pin->packet' and 'pin->packet_len' with the part of the packet actually |
3472 | * included in the message. If 'total_lenp' is nonnull, populates | |
3473 | * '*total_lenp' with the original length of the packet (which is larger than | |
3474 | * 'packet->len' if only part of the packet was included). If 'buffer_idp' is | |
3475 | * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it | |
9bfe9334 BP |
3476 | * was not buffered). |
3477 | * | |
77ab5fd2 BP |
3478 | * Populates 'continuation', if nonnull, with the continuation data from the |
3479 | * packet-in (an empty buffer, if 'oh' did not contain continuation data). The | |
3480 | * format of this data is supposed to be opaque to anything other than | |
3481 | * ovs-vswitchd, so that in any other process the only reasonable use of this | |
3482 | * data is to be copied into an NXT_RESUME message via ofputil_encode_resume(). | |
3483 | * | |
3484 | * This function points 'pin->packet' into 'oh', so the caller should not free | |
3485 | * it separately from the original OpenFlow message. This is also true for | |
3486 | * 'pin->userdata' (which could also end up NULL if there is no userdata). | |
3487 | * | |
3cddeff0 YHW |
3488 | * 'vl_mff_map' is an optional parameter that is used to validate the length |
3489 | * of variable length mf_fields in 'match'. If it is not provided, the | |
3490 | * default mf_fields with maximum length will be used. | |
3491 | * | |
9bfe9334 | 3492 | * Returns 0 if successful, otherwise an OpenFlow error code. */ |
f7cc6bd8 | 3493 | enum ofperr |
77ab5fd2 | 3494 | ofputil_decode_packet_in(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3495 | const struct tun_table *tun_table, |
3cddeff0 | 3496 | const struct vl_mff_map *vl_mff_map, |
9bfe9334 | 3497 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3498 | size_t *total_lenp, uint32_t *buffer_idp, |
3499 | struct ofpbuf *continuation) | |
65120a8a | 3500 | { |
77ab5fd2 BP |
3501 | uint32_t buffer_id; |
3502 | size_t total_len; | |
3503 | ||
65120a8a | 3504 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3505 | pin->cookie = OVS_BE64_MAX; |
77ab5fd2 BP |
3506 | if (continuation) { |
3507 | ofpbuf_use_const(continuation, NULL, 0); | |
3508 | } | |
65120a8a | 3509 | |
0a2869d5 BP |
3510 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3511 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3512 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3513 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3514 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3515 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3516 | : NULL); | |
8d8ab6c2 JG |
3517 | enum ofperr error = oxm_pull_match_loose(&b, tun_table, |
3518 | &pin->flow_metadata); | |
7cfb9651 SH |
3519 | if (error) { |
3520 | return error; | |
3521 | } | |
3522 | ||
3523 | if (!ofpbuf_try_pull(&b, 2)) { | |
3524 | return OFPERR_OFPBRC_BAD_LEN; | |
3525 | } | |
3526 | ||
43948fa5 BP |
3527 | pin->reason = opi->reason; |
3528 | pin->table_id = opi->table_id; | |
77ab5fd2 BP |
3529 | buffer_id = ntohl(opi->buffer_id); |
3530 | total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3531 | if (cookie) { |
3532 | pin->cookie = *cookie; | |
2e1ae200 | 3533 | } |
7cfb9651 | 3534 | |
50dcbd8e | 3535 | pin->packet = b.data; |
4adaf182 | 3536 | pin->packet_len = b.size; |
7cfb9651 | 3537 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3538 | const struct ofp10_packet_in *opi; |
982697a4 | 3539 | |
31a9e63f | 3540 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a | 3541 | |
95022b47 | 3542 | pin->packet = CONST_CAST(uint8_t *, opi->data); |
4adaf182 | 3543 | pin->packet_len = b.size; |
65120a8a | 3544 | |
50dcbd8e | 3545 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3546 | match_set_in_port(&pin->flow_metadata, |
3547 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3548 | pin->reason = opi->reason; |
77ab5fd2 BP |
3549 | buffer_id = ntohl(opi->buffer_id); |
3550 | total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3551 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3552 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3553 | ofp_port_t in_port; |
4d197ebb BP |
3554 | enum ofperr error; |
3555 | ||
3556 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3557 | ||
6fd6ed71 | 3558 | pin->packet = b.data; |
4adaf182 | 3559 | pin->packet_len = b.size; |
4d197ebb | 3560 | |
77ab5fd2 | 3561 | buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3562 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3563 | if (error) { |
3564 | return error; | |
3565 | } | |
50dcbd8e JG |
3566 | match_init_catchall(&pin->flow_metadata); |
3567 | match_set_in_port(&pin->flow_metadata, in_port); | |
77ab5fd2 | 3568 | total_len = ntohs(opi->total_len); |
4d197ebb BP |
3569 | pin->reason = opi->reason; |
3570 | pin->table_id = opi->table_id; | |
982697a4 | 3571 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3572 | const struct nx_packet_in *npi; |
54834960 EJ |
3573 | int error; |
3574 | ||
54834960 | 3575 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e | 3576 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
8d8ab6c2 | 3577 | &pin->flow_metadata, NULL, NULL, NULL); |
54834960 EJ |
3578 | if (error) { |
3579 | return error; | |
3580 | } | |
3581 | ||
3582 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3583 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3584 | } |
3585 | ||
54834960 EJ |
3586 | pin->reason = npi->reason; |
3587 | pin->table_id = npi->table_id; | |
3588 | pin->cookie = npi->cookie; | |
3589 | ||
77ab5fd2 BP |
3590 | buffer_id = ntohl(npi->buffer_id); |
3591 | total_len = ntohs(npi->total_len); | |
7cfb9651 | 3592 | |
50dcbd8e | 3593 | pin->packet = b.data; |
4adaf182 | 3594 | pin->packet_len = b.size; |
77ab5fd2 | 3595 | } else if (raw == OFPRAW_NXT_PACKET_IN2 || raw == OFPRAW_NXT_RESUME) { |
3cddeff0 YHW |
3596 | enum ofperr error = decode_nx_packet_in2(oh, loose, tun_table, |
3597 | vl_mff_map, pin, &total_len, | |
3598 | &buffer_id, continuation); | |
77ab5fd2 BP |
3599 | if (error) { |
3600 | return error; | |
3601 | } | |
65120a8a | 3602 | } else { |
428b2edd | 3603 | OVS_NOT_REACHED(); |
65120a8a EJ |
3604 | } |
3605 | ||
77ab5fd2 BP |
3606 | if (total_lenp) { |
3607 | *total_lenp = total_len; | |
3608 | } | |
3609 | if (buffer_idp) { | |
3610 | *buffer_idp = buffer_id; | |
3611 | } | |
3612 | ||
65120a8a EJ |
3613 | return 0; |
3614 | } | |
3615 | ||
9bfe9334 BP |
3616 | static int |
3617 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3618 | enum ofp_version version) | |
3619 | { | |
3620 | switch (reason) { | |
3621 | case OFPR_NO_MATCH: | |
3622 | case OFPR_ACTION: | |
3623 | case OFPR_INVALID_TTL: | |
3624 | return reason; | |
3625 | ||
3626 | case OFPR_ACTION_SET: | |
3627 | case OFPR_GROUP: | |
3628 | case OFPR_PACKET_OUT: | |
3629 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3630 | ||
3631 | case OFPR_EXPLICIT_MISS: | |
3632 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3633 | ||
3634 | case OFPR_IMPLICIT_MISS: | |
3635 | return OFPR_NO_MATCH; | |
3636 | ||
3637 | case OFPR_N_REASONS: | |
3638 | default: | |
3639 | OVS_NOT_REACHED(); | |
3640 | } | |
3641 | } | |
3642 | ||
77ab5fd2 BP |
3643 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this |
3644 | * function omits it. The caller can add it itself if desired. */ | |
3645 | static void | |
3646 | ofputil_put_packet_in(const struct ofputil_packet_in *pin, | |
c184807c JR |
3647 | enum ofp_version version, size_t include_bytes, |
3648 | struct ofpbuf *msg) | |
77ab5fd2 BP |
3649 | { |
3650 | /* Add packet properties. */ | |
3651 | ofpprop_put(msg, NXPINT_PACKET, pin->packet, include_bytes); | |
3652 | if (include_bytes != pin->packet_len) { | |
3653 | ofpprop_put_u32(msg, NXPINT_FULL_LEN, pin->packet_len); | |
3654 | } | |
77ab5fd2 BP |
3655 | |
3656 | /* Add flow properties. */ | |
3657 | ofpprop_put_u8(msg, NXPINT_TABLE_ID, pin->table_id); | |
3658 | if (pin->cookie != OVS_BE64_MAX) { | |
3659 | ofpprop_put_be64(msg, NXPINT_COOKIE, pin->cookie); | |
3660 | } | |
3661 | ||
3662 | /* Add other properties. */ | |
3663 | ofpprop_put_u8(msg, NXPINT_REASON, | |
3664 | encode_packet_in_reason(pin->reason, version)); | |
3665 | ||
3666 | size_t start = ofpprop_start(msg, NXPINT_METADATA); | |
3667 | oxm_put_raw(msg, &pin->flow_metadata, version); | |
3668 | ofpprop_end(msg, start); | |
3669 | } | |
3670 | ||
3671 | static void | |
3672 | put_actions_property(struct ofpbuf *msg, uint64_t prop_type, | |
3673 | enum ofp_version version, | |
3674 | const struct ofpact *actions, size_t actions_len) | |
3675 | { | |
3676 | if (actions_len) { | |
3677 | size_t start = ofpprop_start_nested(msg, prop_type); | |
3678 | ofpacts_put_openflow_actions(actions, actions_len, msg, version); | |
3679 | ofpprop_end(msg, start); | |
3680 | } | |
3681 | } | |
3682 | ||
3683 | enum nx_continuation_prop_type { | |
3684 | NXCPT_BRIDGE = 0x8000, | |
3685 | NXCPT_STACK, | |
3686 | NXCPT_MIRRORS, | |
3687 | NXCPT_CONNTRACKED, | |
3688 | NXCPT_TABLE_ID, | |
3689 | NXCPT_COOKIE, | |
3690 | NXCPT_ACTIONS, | |
3691 | NXCPT_ACTION_SET, | |
3692 | }; | |
3693 | ||
3694 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this | |
3695 | * function omits it. The caller can add it itself if desired. */ | |
3696 | static void | |
3697 | ofputil_put_packet_in_private(const struct ofputil_packet_in_private *pin, | |
c184807c JR |
3698 | enum ofp_version version, size_t include_bytes, |
3699 | struct ofpbuf *msg) | |
77ab5fd2 | 3700 | { |
c184807c | 3701 | ofputil_put_packet_in(&pin->public, version, include_bytes, msg); |
77ab5fd2 BP |
3702 | |
3703 | size_t continuation_ofs = ofpprop_start_nested(msg, NXPINT_CONTINUATION); | |
3704 | size_t inner_ofs = msg->size; | |
3705 | ||
3706 | if (!uuid_is_zero(&pin->bridge)) { | |
3707 | ofpprop_put_uuid(msg, NXCPT_BRIDGE, &pin->bridge); | |
3708 | } | |
3709 | ||
84cf3c1f JR |
3710 | struct ofpbuf pin_stack; |
3711 | ofpbuf_use_const(&pin_stack, pin->stack, pin->stack_size); | |
77ab5fd2 | 3712 | |
84cf3c1f JR |
3713 | while (pin_stack.size) { |
3714 | uint8_t len; | |
3715 | uint8_t *val = nx_stack_pop(&pin_stack, &len); | |
3716 | ofpprop_put(msg, NXCPT_STACK, val, len); | |
77ab5fd2 BP |
3717 | } |
3718 | ||
3719 | if (pin->mirrors) { | |
3720 | ofpprop_put_u32(msg, NXCPT_MIRRORS, pin->mirrors); | |
3721 | } | |
3722 | ||
3723 | if (pin->conntracked) { | |
3724 | ofpprop_put_flag(msg, NXCPT_CONNTRACKED); | |
3725 | } | |
3726 | ||
3727 | if (pin->actions_len) { | |
3728 | /* Divide 'pin->actions' into groups that begins with an | |
3729 | * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and | |
3730 | * NXCPT_COOKIE property (if either has changed; each is initially | |
3731 | * assumed 0), then a NXCPT_ACTIONS property with the grouped | |
3732 | * actions. | |
3733 | * | |
3734 | * The alternative is to make OFPACT_UNROLL_XLATE public. We can | |
3735 | * always do that later, since this is a private property. */ | |
3736 | const struct ofpact *const end = ofpact_end(pin->actions, | |
3737 | pin->actions_len); | |
3738 | const struct ofpact_unroll_xlate *unroll = NULL; | |
3739 | uint8_t table_id = 0; | |
3740 | ovs_be64 cookie = 0; | |
3741 | ||
3742 | const struct ofpact *a; | |
3743 | for (a = pin->actions; ; a = ofpact_next(a)) { | |
3744 | if (a == end || a->type == OFPACT_UNROLL_XLATE) { | |
3745 | if (unroll) { | |
3746 | if (table_id != unroll->rule_table_id) { | |
3747 | ofpprop_put_u8(msg, NXCPT_TABLE_ID, | |
3748 | unroll->rule_table_id); | |
3749 | table_id = unroll->rule_table_id; | |
3750 | } | |
3751 | if (cookie != unroll->rule_cookie) { | |
3752 | ofpprop_put_be64(msg, NXCPT_COOKIE, | |
3753 | unroll->rule_cookie); | |
3754 | cookie = unroll->rule_cookie; | |
3755 | } | |
3756 | } | |
3757 | ||
3758 | const struct ofpact *start | |
3759 | = unroll ? ofpact_next(&unroll->ofpact) : pin->actions; | |
3760 | put_actions_property(msg, NXCPT_ACTIONS, version, | |
3761 | start, (a - start) * sizeof *a); | |
3762 | ||
3763 | if (a == end) { | |
3764 | break; | |
3765 | } | |
3766 | unroll = ofpact_get_UNROLL_XLATE(a); | |
3767 | } | |
3768 | } | |
3769 | } | |
3770 | ||
3771 | if (pin->action_set_len) { | |
3772 | size_t start = ofpprop_start_nested(msg, NXCPT_ACTION_SET); | |
3773 | ofpacts_put_openflow_actions(pin->action_set, | |
3774 | pin->action_set_len, msg, version); | |
3775 | ofpprop_end(msg, start); | |
3776 | } | |
3777 | ||
3778 | if (msg->size > inner_ofs) { | |
3779 | ofpprop_end(msg, continuation_ofs); | |
3780 | } else { | |
3781 | msg->size = continuation_ofs; | |
3782 | } | |
3783 | } | |
3784 | ||
0f83fea0 | 3785 | static struct ofpbuf * |
c184807c | 3786 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) |
0f83fea0 BP |
3787 | { |
3788 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3789 | struct ofpbuf *msg; |
0f83fea0 | 3790 | |
9bfe9334 | 3791 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
4adaf182 | 3792 | htonl(0), pin->packet_len); |
9bfe9334 | 3793 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); |
4adaf182 | 3794 | opi->total_len = htons(pin->packet_len); |
50dcbd8e | 3795 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 | 3796 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
c184807c | 3797 | opi->buffer_id = htonl(UINT32_MAX); |
0f83fea0 | 3798 | |
9bfe9334 | 3799 | return msg; |
0f83fea0 BP |
3800 | } |
3801 | ||
3802 | static struct ofpbuf * | |
9bfe9334 | 3803 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
c184807c | 3804 | enum ofp_version version) |
0f83fea0 BP |
3805 | { |
3806 | struct nx_packet_in *npi; | |
9bfe9334 | 3807 | struct ofpbuf *msg; |
0f83fea0 BP |
3808 | size_t match_len; |
3809 | ||
0f83fea0 | 3810 | /* The final argument is just an estimate of the space required. */ |
6409e008 | 3811 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, version, |
4adaf182 | 3812 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
9bfe9334 BP |
3813 | ofpbuf_put_zeros(msg, sizeof *npi); |
3814 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3815 | ofpbuf_put_zeros(msg, 2); | |
3816 | ||
3817 | npi = msg->msg; | |
c184807c | 3818 | npi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3819 | npi->total_len = htons(pin->packet_len); |
6409e008 | 3820 | npi->reason = encode_packet_in_reason(pin->reason, version); |
0f83fea0 BP |
3821 | npi->table_id = pin->table_id; |
3822 | npi->cookie = pin->cookie; | |
3823 | npi->match_len = htons(match_len); | |
3824 | ||
9bfe9334 | 3825 | return msg; |
0f83fea0 BP |
3826 | } |
3827 | ||
6409e008 | 3828 | static struct ofpbuf * |
77ab5fd2 | 3829 | ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private *pin, |
c184807c | 3830 | enum ofp_version version, size_t include_bytes) |
6409e008 BP |
3831 | { |
3832 | /* 'extra' is just an estimate of the space required. */ | |
77ab5fd2 BP |
3833 | size_t extra = (pin->public.packet_len |
3834 | + NXM_TYPICAL_LEN /* flow_metadata */ | |
84cf3c1f | 3835 | + pin->stack_size * 4 |
77ab5fd2 BP |
3836 | + pin->actions_len |
3837 | + pin->action_set_len | |
3838 | + 256); /* fudge factor */ | |
6409e008 BP |
3839 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2, version, |
3840 | htonl(0), extra); | |
3841 | ||
c184807c | 3842 | ofputil_put_packet_in_private(pin, version, include_bytes, msg); |
77ab5fd2 BP |
3843 | if (pin->public.userdata_len) { |
3844 | ofpprop_put(msg, NXPINT_USERDATA, pin->public.userdata, | |
3845 | pin->public.userdata_len); | |
bdcad671 BP |
3846 | } |
3847 | ||
6409e008 BP |
3848 | ofpmsg_update_length(msg); |
3849 | return msg; | |
3850 | } | |
3851 | ||
4d197ebb | 3852 | static struct ofpbuf * |
c184807c | 3853 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) |
4d197ebb BP |
3854 | { |
3855 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3856 | struct ofpbuf *msg; |
4d197ebb | 3857 | |
9bfe9334 | 3858 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
4adaf182 | 3859 | htonl(0), pin->packet_len); |
9bfe9334 | 3860 | opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3861 | opi->buffer_id = htonl(UINT32_MAX); |
9bfe9334 BP |
3862 | opi->in_port = ofputil_port_to_ofp11( |
3863 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3864 | opi->in_phy_port = opi->in_port; |
4adaf182 | 3865 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3866 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); |
4d197ebb BP |
3867 | opi->table_id = pin->table_id; |
3868 | ||
9bfe9334 | 3869 | return msg; |
4d197ebb BP |
3870 | } |
3871 | ||
0f83fea0 BP |
3872 | static struct ofpbuf * |
3873 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
c184807c | 3874 | enum ofp_version version) |
0f83fea0 | 3875 | { |
43948fa5 BP |
3876 | enum ofpraw raw = (version >= OFP13_VERSION |
3877 | ? OFPRAW_OFPT13_PACKET_IN | |
3878 | : OFPRAW_OFPT12_PACKET_IN); | |
3879 | struct ofpbuf *msg; | |
0f83fea0 | 3880 | |
0f83fea0 | 3881 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3882 | msg = ofpraw_alloc_xid(raw, version, |
4adaf182 | 3883 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3884 | |
43948fa5 | 3885 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3886 | opi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3887 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3888 | opi->reason = encode_packet_in_reason(pin->reason, version); |
43948fa5 | 3889 | opi->table_id = pin->table_id; |
9bfe9334 | 3890 | |
43948fa5 BP |
3891 | if (version >= OFP13_VERSION) { |
3892 | ovs_be64 cookie = pin->cookie; | |
3893 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3894 | } |
3895 | ||
43948fa5 BP |
3896 | oxm_put_match(msg, &pin->flow_metadata, version); |
3897 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3898 | |
3899 | return msg; | |
0f83fea0 BP |
3900 | } |
3901 | ||
77ab5fd2 BP |
3902 | /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message |
3903 | * for 'protocol', using the packet-in format specified by 'packet_in_format'. | |
9bfe9334 | 3904 | * |
77ab5fd2 BP |
3905 | * This function is really meant only for use by ovs-vswitchd. To any other |
3906 | * code, the "continuation" data, i.e. the data that is in struct | |
3907 | * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed | |
3908 | * to be opaque (and it might change from one OVS version to another). Thus, | |
3909 | * if any other code wants to encode a packet-in, it should use a non-"private" | |
3910 | * version of this function. (Such a version doesn't currently exist because | |
3911 | * only ovs-vswitchd currently wants to encode packet-ins. If you need one, | |
3912 | * write it...) */ | |
ebb57021 | 3913 | struct ofpbuf * |
77ab5fd2 BP |
3914 | ofputil_encode_packet_in_private(const struct ofputil_packet_in_private *pin, |
3915 | enum ofputil_protocol protocol, | |
c184807c | 3916 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3917 | { |
9bfe9334 BP |
3918 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3919 | ||
9bfe9334 | 3920 | struct ofpbuf *msg; |
6409e008 BP |
3921 | switch (packet_in_format) { |
3922 | case NXPIF_STANDARD: | |
3923 | switch (protocol) { | |
3924 | case OFPUTIL_P_OF10_STD: | |
3925 | case OFPUTIL_P_OF10_STD_TID: | |
3926 | case OFPUTIL_P_OF10_NXM: | |
3927 | case OFPUTIL_P_OF10_NXM_TID: | |
c184807c | 3928 | msg = ofputil_encode_ofp10_packet_in(&pin->public); |
6409e008 | 3929 | break; |
2e1ae200 | 3930 | |
6409e008 | 3931 | case OFPUTIL_P_OF11_STD: |
c184807c | 3932 | msg = ofputil_encode_ofp11_packet_in(&pin->public); |
6409e008 BP |
3933 | break; |
3934 | ||
3935 | case OFPUTIL_P_OF12_OXM: | |
3936 | case OFPUTIL_P_OF13_OXM: | |
3937 | case OFPUTIL_P_OF14_OXM: | |
3938 | case OFPUTIL_P_OF15_OXM: | |
b79d45a1 | 3939 | case OFPUTIL_P_OF16_OXM: |
c184807c | 3940 | msg = ofputil_encode_ofp12_packet_in(&pin->public, version); |
6409e008 BP |
3941 | break; |
3942 | ||
3943 | default: | |
3944 | OVS_NOT_REACHED(); | |
3945 | } | |
4d197ebb | 3946 | break; |
d94240ec | 3947 | |
6409e008 | 3948 | case NXPIF_NXT_PACKET_IN: |
c184807c | 3949 | msg = ofputil_encode_nx_packet_in(&pin->public, version); |
0f83fea0 BP |
3950 | break; |
3951 | ||
6409e008 | 3952 | case NXPIF_NXT_PACKET_IN2: |
c184807c JR |
3953 | return ofputil_encode_nx_packet_in2(pin, version, |
3954 | pin->public.packet_len); | |
6409e008 | 3955 | |
0f83fea0 | 3956 | default: |
428b2edd | 3957 | OVS_NOT_REACHED(); |
54834960 | 3958 | } |
54834960 | 3959 | |
c184807c | 3960 | ofpbuf_put(msg, pin->public.packet, pin->public.packet_len); |
9bfe9334 BP |
3961 | ofpmsg_update_length(msg); |
3962 | return msg; | |
ebb57021 BP |
3963 | } |
3964 | ||
5014a89d BP |
3965 | /* Returns a string form of 'reason'. The return value is either a statically |
3966 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3967 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3968 | const char * |
5014a89d BP |
3969 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3970 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3971 | { |
7c1a76a4 BP |
3972 | switch (reason) { |
3973 | case OFPR_NO_MATCH: | |
3974 | return "no_match"; | |
3975 | case OFPR_ACTION: | |
3976 | return "action"; | |
3977 | case OFPR_INVALID_TTL: | |
3978 | return "invalid_ttl"; | |
424467c6 SS |
3979 | case OFPR_ACTION_SET: |
3980 | return "action_set"; | |
3981 | case OFPR_GROUP: | |
3982 | return "group"; | |
3983 | case OFPR_PACKET_OUT: | |
3984 | return "packet_out"; | |
9bfe9334 BP |
3985 | case OFPR_EXPLICIT_MISS: |
3986 | case OFPR_IMPLICIT_MISS: | |
3987 | return ""; | |
7c1a76a4 BP |
3988 | |
3989 | case OFPR_N_REASONS: | |
3990 | default: | |
5014a89d BP |
3991 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3992 | return reasonbuf; | |
7c1a76a4 BP |
3993 | } |
3994 | } | |
3995 | ||
3996 | bool | |
3997 | ofputil_packet_in_reason_from_string(const char *s, | |
3998 | enum ofp_packet_in_reason *reason) | |
3999 | { | |
4000 | int i; | |
4001 | ||
4002 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
4003 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
4004 | const char *reason_s; | |
4005 | ||
4006 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
4007 | sizeof reasonbuf); | |
4008 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
4009 | *reason = i; |
4010 | return true; | |
4011 | } | |
4012 | } | |
4013 | return false; | |
4014 | } | |
4015 | ||
77ab5fd2 BP |
4016 | /* Returns a newly allocated NXT_RESUME message for 'pin', with the given |
4017 | * 'continuation', for 'protocol'. This message is suitable for resuming the | |
4018 | * pipeline traveral of the packet represented by 'pin', if sent to the switch | |
4019 | * from which 'pin' was received. */ | |
4020 | struct ofpbuf * | |
4021 | ofputil_encode_resume(const struct ofputil_packet_in *pin, | |
4022 | const struct ofpbuf *continuation, | |
4023 | enum ofputil_protocol protocol) | |
4024 | { | |
4025 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
4026 | size_t extra = pin->packet_len + NXM_TYPICAL_LEN + continuation->size; | |
4027 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_RESUME, version, | |
4028 | 0, extra); | |
c184807c | 4029 | ofputil_put_packet_in(pin, version, pin->packet_len, msg); |
77ab5fd2 BP |
4030 | ofpprop_put_nested(msg, NXPINT_CONTINUATION, continuation); |
4031 | ofpmsg_update_length(msg); | |
4032 | return msg; | |
4033 | } | |
4034 | ||
4035 | static enum ofperr | |
84cf3c1f | 4036 | parse_stack_prop(const struct ofpbuf *property, struct ofpbuf *stack) |
77ab5fd2 BP |
4037 | { |
4038 | unsigned int len = ofpbuf_msgsize(property); | |
84cf3c1f | 4039 | if (len > sizeof(union mf_subvalue)) { |
77ab5fd2 BP |
4040 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXCPT_STACK property has bad length %u", |
4041 | len); | |
4042 | return OFPERR_OFPBPC_BAD_LEN; | |
4043 | } | |
84cf3c1f | 4044 | nx_stack_push_bottom(stack, property->msg, len); |
77ab5fd2 BP |
4045 | return 0; |
4046 | } | |
4047 | ||
4048 | static enum ofperr | |
4049 | parse_actions_property(struct ofpbuf *property, enum ofp_version version, | |
4050 | struct ofpbuf *ofpacts) | |
4051 | { | |
4052 | if (!ofpbuf_try_pull(property, ROUND_UP(ofpbuf_headersize(property), 8))) { | |
4053 | VLOG_WARN_RL(&bad_ofmsg_rl, "actions property has bad length %"PRIu32, | |
4054 | property->size); | |
4055 | return OFPERR_OFPBPC_BAD_LEN; | |
4056 | } | |
4057 | ||
4058 | return ofpacts_pull_openflow_actions(property, property->size, | |
5c7c16d8 | 4059 | version, NULL, NULL, ofpacts); |
77ab5fd2 BP |
4060 | } |
4061 | ||
4062 | /* This is like ofputil_decode_packet_in(), except that it decodes the | |
4063 | * continuation data into 'pin'. The format of this data is supposed to be | |
4064 | * opaque to any process other than ovs-vswitchd, so this function should not | |
4065 | * be used outside ovs-vswitchd. | |
4066 | * | |
3cddeff0 YHW |
4067 | * 'vl_mff_map' is an optional parameter that is used to validate the length |
4068 | * of variable length mf_fields in 'match'. If it is not provided, the | |
4069 | * default mf_fields with maximum length will be used. | |
4070 | * | |
77ab5fd2 BP |
4071 | * When successful, 'pin' contains some dynamically allocated data. Call |
4072 | * ofputil_packet_in_private_destroy() to free this data. */ | |
4073 | enum ofperr | |
4074 | ofputil_decode_packet_in_private(const struct ofp_header *oh, bool loose, | |
8d8ab6c2 | 4075 | const struct tun_table *tun_table, |
3cddeff0 | 4076 | const struct vl_mff_map *vl_mff_map, |
77ab5fd2 BP |
4077 | struct ofputil_packet_in_private *pin, |
4078 | size_t *total_len, uint32_t *buffer_id) | |
4079 | { | |
4080 | memset(pin, 0, sizeof *pin); | |
4081 | ||
4082 | struct ofpbuf continuation; | |
4083 | enum ofperr error; | |
3cddeff0 YHW |
4084 | error = ofputil_decode_packet_in(oh, loose, tun_table, vl_mff_map, |
4085 | &pin->public, total_len, buffer_id, | |
4086 | &continuation); | |
77ab5fd2 BP |
4087 | if (error) { |
4088 | return error; | |
4089 | } | |
4090 | ||
4091 | struct ofpbuf actions, action_set; | |
4092 | ofpbuf_init(&actions, 0); | |
4093 | ofpbuf_init(&action_set, 0); | |
4094 | ||
4095 | uint8_t table_id = 0; | |
4096 | ovs_be64 cookie = 0; | |
4097 | ||
84cf3c1f JR |
4098 | struct ofpbuf stack; |
4099 | ofpbuf_init(&stack, 0); | |
77ab5fd2 BP |
4100 | |
4101 | while (continuation.size > 0) { | |
4102 | struct ofpbuf payload; | |
4103 | uint64_t type; | |
4104 | ||
4105 | error = ofpprop_pull(&continuation, &payload, &type); | |
8319a81a JR |
4106 | if (error) { |
4107 | break; | |
4108 | } | |
77ab5fd2 BP |
4109 | |
4110 | switch (type) { | |
4111 | case NXCPT_BRIDGE: | |
4112 | error = ofpprop_parse_uuid(&payload, &pin->bridge); | |
4113 | break; | |
4114 | ||
4115 | case NXCPT_STACK: | |
84cf3c1f | 4116 | error = parse_stack_prop(&payload, &stack); |
77ab5fd2 BP |
4117 | break; |
4118 | ||
4119 | case NXCPT_MIRRORS: | |
4120 | error = ofpprop_parse_u32(&payload, &pin->mirrors); | |
4121 | break; | |
4122 | ||
4123 | case NXCPT_CONNTRACKED: | |
4124 | pin->conntracked = true; | |
4125 | break; | |
4126 | ||
4127 | case NXCPT_TABLE_ID: | |
4128 | error = ofpprop_parse_u8(&payload, &table_id); | |
4129 | break; | |
4130 | ||
4131 | case NXCPT_COOKIE: | |
4132 | error = ofpprop_parse_be64(&payload, &cookie); | |
4133 | break; | |
4134 | ||
4135 | case NXCPT_ACTIONS: { | |
4136 | struct ofpact_unroll_xlate *unroll | |
4137 | = ofpact_put_UNROLL_XLATE(&actions); | |
4138 | unroll->rule_table_id = table_id; | |
4139 | unroll->rule_cookie = cookie; | |
4140 | error = parse_actions_property(&payload, oh->version, &actions); | |
4141 | break; | |
4142 | } | |
4143 | ||
4144 | case NXCPT_ACTION_SET: | |
4145 | error = parse_actions_property(&payload, oh->version, &action_set); | |
4146 | break; | |
4147 | ||
4148 | default: | |
4149 | error = OFPPROP_UNKNOWN(loose, "continuation", type); | |
4150 | break; | |
4151 | } | |
4152 | if (error) { | |
4153 | break; | |
4154 | } | |
4155 | } | |
4156 | ||
4157 | pin->actions_len = actions.size; | |
4158 | pin->actions = ofpbuf_steal_data(&actions); | |
4159 | pin->action_set_len = action_set.size; | |
4160 | pin->action_set = ofpbuf_steal_data(&action_set); | |
84cf3c1f JR |
4161 | pin->stack_size = stack.size; |
4162 | pin->stack = ofpbuf_steal_data(&stack); | |
77ab5fd2 BP |
4163 | |
4164 | if (error) { | |
4165 | ofputil_packet_in_private_destroy(pin); | |
4166 | } | |
4167 | ||
8319a81a | 4168 | return error; |
77ab5fd2 BP |
4169 | } |
4170 | ||
4171 | /* Frees data in 'pin' that is dynamically allocated by | |
4172 | * ofputil_decode_packet_in_private(). | |
4173 | * | |
4174 | * 'pin->public' contains some pointer members that | |
4175 | * ofputil_decode_packet_in_private() doesn't initialize to newly allocated | |
4176 | * data, so this function doesn't free those. */ | |
4177 | void | |
4178 | ofputil_packet_in_private_destroy(struct ofputil_packet_in_private *pin) | |
4179 | { | |
4180 | if (pin) { | |
4181 | free(pin->stack); | |
4182 | free(pin->actions); | |
4183 | free(pin->action_set); | |
4184 | } | |
4185 | } | |
4186 | ||
f25d0cf3 BP |
4187 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
4188 | * 'po'. | |
4189 | * | |
4190 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
4191 | * message's actions. The caller must initialize 'ofpacts' and retains | |
4192 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
4193 | * | |
6dd3c787 JR |
4194 | * 'po->packet' refers to the packet data in 'oh', so the buffer containing |
4195 | * 'oh' must not be destroyed while 'po' is being used. | |
4196 | * | |
f25d0cf3 | 4197 | * Returns 0 if successful, otherwise an OFPERR_* value. */ |
c6a93eb7 BP |
4198 | enum ofperr |
4199 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 4200 | const struct ofp_header *oh, |
f25d0cf3 | 4201 | struct ofpbuf *ofpacts) |
c6a93eb7 | 4202 | { |
0a2869d5 BP |
4203 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4204 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4205 | |
9abca1e5 | 4206 | ofpbuf_clear(ofpacts); |
35eb6326 | 4207 | match_init_catchall(&po->flow_metadata); |
eb5ee596 SH |
4208 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
4209 | enum ofperr error; | |
35eb6326 | 4210 | ofp_port_t in_port; |
eb5ee596 SH |
4211 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
4212 | ||
4213 | po->buffer_id = ntohl(opo->buffer_id); | |
35eb6326 | 4214 | error = ofputil_port_from_ofp11(opo->in_port, &in_port); |
eb5ee596 SH |
4215 | if (error) { |
4216 | return error; | |
4217 | } | |
35eb6326 | 4218 | match_set_in_port(&po->flow_metadata, in_port); |
eb5ee596 | 4219 | |
e3f8f887 | 4220 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
5c7c16d8 YHW |
4221 | oh->version, NULL, NULL, |
4222 | ofpacts); | |
eb5ee596 SH |
4223 | if (error) { |
4224 | return error; | |
4225 | } | |
eb5ee596 | 4226 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 4227 | enum ofperr error; |
31a9e63f | 4228 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
4229 | |
4230 | po->buffer_id = ntohl(opo->buffer_id); | |
35eb6326 | 4231 | match_set_in_port(&po->flow_metadata, u16_to_ofp(ntohs(opo->in_port))); |
8a6bc7cd | 4232 | |
e3f8f887 | 4233 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
5c7c16d8 YHW |
4234 | oh->version, NULL, NULL, |
4235 | ofpacts); | |
8a6bc7cd SH |
4236 | if (error) { |
4237 | return error; | |
4238 | } | |
4239 | } else { | |
428b2edd | 4240 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
4241 | } |
4242 | ||
35eb6326 YHW |
4243 | ofp_port_t in_port = po->flow_metadata.flow.in_port.ofp_port; |
4244 | if (ofp_to_u16(in_port) >= ofp_to_u16(OFPP_MAX) | |
4245 | && in_port != OFPP_LOCAL | |
4246 | && in_port != OFPP_NONE | |
4247 | && in_port != OFPP_CONTROLLER) { | |
94783c7c | 4248 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx32, |
35eb6326 | 4249 | po->flow_metadata.flow.in_port.ofp_port); |
2e1bfcb6 | 4250 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
4251 | } |
4252 | ||
6fd6ed71 PS |
4253 | po->ofpacts = ofpacts->data; |
4254 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
4255 | |
4256 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
4257 | po->packet = b.data; |
4258 | po->packet_len = b.size; | |
c6a93eb7 BP |
4259 | } else { |
4260 | po->packet = NULL; | |
4261 | po->packet_len = 0; | |
4262 | } | |
4263 | ||
4264 | return 0; | |
4265 | } | |
6c038611 BP |
4266 | \f |
4267 | /* ofputil_phy_port */ | |
4268 | ||
4269 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
4270 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
4271 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4272 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4273 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4274 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4275 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4276 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4277 | ||
4278 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
4279 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
4280 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
4281 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
4282 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
4283 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 4284 | |
9e1fd49b BP |
4285 | static enum netdev_features |
4286 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
4287 | { |
4288 | uint32_t ofp10 = ntohl(ofp10_); | |
4289 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
4290 | } | |
4291 | ||
9e1fd49b BP |
4292 | static ovs_be32 |
4293 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
4294 | { |
4295 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
4296 | } | |
c6a93eb7 | 4297 | |
9e1fd49b BP |
4298 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
4299 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4300 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4301 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4302 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4303 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4304 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4305 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
4306 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
4307 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
4308 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
4309 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
4310 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
4311 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
4312 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
4313 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
4314 | ||
4315 | static enum netdev_features | |
4316 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
4317 | { | |
4318 | return ntohl(ofp11) & 0xffff; | |
4319 | } | |
4320 | ||
4321 | static ovs_be32 | |
4322 | netdev_port_features_to_ofp11(enum netdev_features features) | |
4323 | { | |
4324 | return htonl(features & 0xffff); | |
4325 | } | |
4326 | ||
4327 | static enum ofperr | |
4328 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
4329 | const struct ofp10_phy_port *opp) | |
4330 | { | |
4e022ec0 | 4331 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 4332 | pp->hw_addr = opp->hw_addr; |
f9ac0f03 | 4333 | ovs_strlcpy_arrays(pp->name, opp->name); |
9e1fd49b BP |
4334 | |
4335 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
4336 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
4337 | ||
4338 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
4339 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
4340 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
4341 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
4342 | ||
d02a5f8e BP |
4343 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
4344 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
4345 | |
4346 | return 0; | |
4347 | } | |
4348 | ||
4349 | static enum ofperr | |
4350 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
4351 | const struct ofp11_port *op) | |
4352 | { | |
4353 | enum ofperr error; | |
4354 | ||
9e1fd49b BP |
4355 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
4356 | if (error) { | |
4357 | return error; | |
4358 | } | |
74ff3298 | 4359 | pp->hw_addr = op->hw_addr; |
f9ac0f03 | 4360 | ovs_strlcpy_arrays(pp->name, op->name); |
9e1fd49b BP |
4361 | |
4362 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 4363 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
4364 | |
4365 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
4366 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
4367 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
4368 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
4369 | ||
4370 | pp->curr_speed = ntohl(op->curr_speed); | |
4371 | pp->max_speed = ntohl(op->max_speed); | |
4372 | ||
4373 | return 0; | |
4374 | } | |
4375 | ||
8c3cc785 BP |
4376 | static enum ofperr |
4377 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
4378 | struct ofputil_phy_port *pp) | |
4379 | { | |
6fd6ed71 | 4380 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 4381 | |
6fd6ed71 | 4382 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
4383 | return OFPERR_OFPBPC_BAD_LEN; |
4384 | } | |
4385 | ||
4386 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
4387 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
4388 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
4389 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
4390 | ||
4391 | pp->curr_speed = ntohl(eth->curr_speed); | |
4392 | pp->max_speed = ntohl(eth->max_speed); | |
4393 | ||
4394 | return 0; | |
4395 | } | |
4396 | ||
4397 | static enum ofperr | |
2f2b904f BP |
4398 | ofputil_pull_ofp14_port_properties(const void *props, size_t len, |
4399 | struct ofputil_phy_port *pp) | |
8c3cc785 | 4400 | { |
2f2b904f | 4401 | struct ofpbuf properties = ofpbuf_const_initializer(props, len); |
6fd6ed71 | 4402 | while (properties.size > 0) { |
8c3cc785 BP |
4403 | struct ofpbuf payload; |
4404 | enum ofperr error; | |
34a543e3 | 4405 | uint64_t type; |
8c3cc785 | 4406 | |
c5562271 | 4407 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
4408 | if (error) { |
4409 | return error; | |
4410 | } | |
4411 | ||
4412 | switch (type) { | |
4413 | case OFPPDPT14_ETHERNET: | |
4414 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
4415 | break; | |
4416 | ||
4417 | default: | |
34a543e3 | 4418 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
4419 | break; |
4420 | } | |
4421 | ||
4422 | if (error) { | |
4423 | return error; | |
4424 | } | |
4425 | } | |
4426 | ||
4427 | return 0; | |
4428 | } | |
4429 | ||
2f2b904f BP |
4430 | static enum ofperr |
4431 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4432 | { | |
4433 | const struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op); | |
4434 | if (!op) { | |
4435 | return OFPERR_OFPBRC_BAD_LEN; | |
4436 | } | |
4437 | ||
4438 | size_t len = ntohs(op->length); | |
4439 | if (len < sizeof *op || len - sizeof *op > msg->size) { | |
4440 | return OFPERR_OFPBRC_BAD_LEN; | |
4441 | } | |
4442 | len -= sizeof *op; | |
4443 | ||
4444 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
4445 | if (error) { | |
4446 | return error; | |
4447 | } | |
4448 | pp->hw_addr = op->hw_addr; | |
4449 | ovs_strlcpy_arrays(pp->name, op->name); | |
4450 | ||
4451 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4452 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4453 | ||
4454 | return ofputil_pull_ofp14_port_properties(ofpbuf_pull(msg, len), len, pp); | |
4455 | } | |
4456 | ||
4457 | static enum ofperr | |
4458 | ofputil_pull_ofp16_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4459 | { | |
4460 | const struct ofp16_port *op = ofpbuf_try_pull(msg, sizeof *op); | |
4461 | if (!op) { | |
4462 | return OFPERR_OFPBRC_BAD_LEN; | |
4463 | } | |
4464 | ||
4465 | size_t len = ntohs(op->length); | |
4466 | if (len < sizeof *op || len - sizeof *op > msg->size) { | |
4467 | return OFPERR_OFPBRC_BAD_LEN; | |
4468 | } | |
4469 | len -= sizeof *op; | |
4470 | ||
4471 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
4472 | if (error) { | |
4473 | return error; | |
4474 | } | |
4475 | if (op->hw_addr_type & htons(OFPPHAT16_EUI48)) { | |
4476 | pp->hw_addr = op->hw_addr; | |
4477 | } | |
4478 | if (op->hw_addr_type & htons(OFPPHAT16_EUI64)) { | |
4479 | pp->hw_addr64 = op->hw_addr64; | |
4480 | } | |
4481 | ovs_strlcpy_arrays(pp->name, op->name); | |
4482 | ||
4483 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4484 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4485 | ||
4486 | return ofputil_pull_ofp14_port_properties(ofpbuf_pull(msg, len), len, pp); | |
4487 | } | |
4488 | ||
9e1fd49b BP |
4489 | static void |
4490 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
4491 | struct ofp10_phy_port *opp) | |
4492 | { | |
4493 | memset(opp, 0, sizeof *opp); | |
4494 | ||
4e022ec0 | 4495 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 4496 | opp->hw_addr = pp->hw_addr; |
f9ac0f03 | 4497 | ovs_strlcpy_arrays(opp->name, pp->name); |
9e1fd49b BP |
4498 | |
4499 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
4500 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
4501 | ||
4502 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
4503 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
4504 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
4505 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
4506 | } | |
4507 | ||
4508 | static void | |
4509 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
4510 | struct ofp11_port *op) | |
4511 | { | |
4512 | memset(op, 0, sizeof *op); | |
4513 | ||
4514 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 4515 | op->hw_addr = pp->hw_addr; |
f9ac0f03 | 4516 | ovs_strlcpy_arrays(op->name, pp->name); |
9e1fd49b BP |
4517 | |
4518 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4519 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4520 | ||
4521 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
4522 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4523 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
4524 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
4525 | ||
4526 | op->curr_speed = htonl(pp->curr_speed); | |
4527 | op->max_speed = htonl(pp->max_speed); | |
4528 | } | |
4529 | ||
8c3cc785 | 4530 | static void |
2f2b904f BP |
4531 | ofputil_encode_ofp14_port_ethernet_prop( |
4532 | const struct ofputil_phy_port *pp, | |
4533 | struct ofp14_port_desc_prop_ethernet *eth) | |
4534 | { | |
4535 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
4536 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4537 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
4538 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
4539 | eth->curr_speed = htonl(pp->curr_speed); | |
4540 | eth->max_speed = htonl(pp->max_speed); | |
4541 | } | |
4542 | ||
4543 | static void | |
4544 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
8c3cc785 BP |
4545 | { |
4546 | struct ofp14_port *op; | |
4547 | struct ofp14_port_desc_prop_ethernet *eth; | |
4548 | ||
4549 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4550 | ||
4551 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4552 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4553 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 4554 | op->hw_addr = pp->hw_addr; |
2f2b904f | 4555 | ovs_strlcpy_arrays(op->name, pp->name); |
8c3cc785 BP |
4556 | op->config = htonl(pp->config & OFPPC11_ALL); |
4557 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4558 | ||
303721ee | 4559 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
2f2b904f BP |
4560 | ofputil_encode_ofp14_port_ethernet_prop(pp, eth); |
4561 | } | |
4562 | ||
4563 | static void | |
4564 | ofputil_put_ofp16_port(const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
4565 | { | |
4566 | struct ofp16_port *op; | |
4567 | struct ofp14_port_desc_prop_ethernet *eth; | |
4568 | ||
4569 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4570 | ||
4571 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4572 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4573 | op->length = htons(sizeof *op + sizeof *eth); | |
4574 | if (!eth_addr_is_zero(pp->hw_addr)) { | |
4575 | op->hw_addr_type |= htons(OFPPHAT16_EUI48); | |
4576 | op->hw_addr = pp->hw_addr; | |
4577 | } | |
4578 | if (!eth_addr64_is_zero(pp->hw_addr64)) { | |
4579 | op->hw_addr_type |= htons(OFPPHAT16_EUI64); | |
4580 | op->hw_addr64 = pp->hw_addr64; | |
4581 | } | |
4582 | ovs_strlcpy_arrays(op->name, pp->name); | |
4583 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4584 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4585 | ||
4586 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); | |
4587 | ofputil_encode_ofp14_port_ethernet_prop(pp, eth); | |
8c3cc785 BP |
4588 | } |
4589 | ||
9e1fd49b | 4590 | static void |
2e3fa633 SH |
4591 | ofputil_put_phy_port(enum ofp_version ofp_version, |
4592 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 4593 | { |
2e3fa633 SH |
4594 | switch (ofp_version) { |
4595 | case OFP10_VERSION: { | |
6b0f20ac BP |
4596 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4597 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4598 | break; |
4599 | } | |
4600 | ||
4601 | case OFP11_VERSION: | |
2e1ae200 JR |
4602 | case OFP12_VERSION: |
4603 | case OFP13_VERSION: { | |
6b0f20ac BP |
4604 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4605 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4606 | break; |
4607 | } | |
4608 | ||
c37c0382 | 4609 | case OFP14_VERSION: |
42dccab5 | 4610 | case OFP15_VERSION: |
8c3cc785 | 4611 | ofputil_put_ofp14_port(pp, b); |
c37c0382 | 4612 | break; |
2f2b904f BP |
4613 | case OFP16_VERSION: |
4614 | ofputil_put_ofp16_port(pp, b); | |
4615 | break; | |
c37c0382 | 4616 | |
2e3fa633 | 4617 | default: |
428b2edd | 4618 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4619 | } |
4620 | } | |
2be393ed | 4621 | |
70ae4f93 BP |
4622 | enum ofperr |
4623 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4624 | ofp_port_t *port) | |
4625 | { | |
0a2869d5 BP |
4626 | struct ofpbuf b = ofpbuf_const_initializer(request, |
4627 | ntohs(request->length)); | |
4628 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
70ae4f93 BP |
4629 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { |
4630 | *port = OFPP_ANY; | |
4631 | return 0; | |
4632 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4633 | ovs_be32 *ofp11_port; | |
4634 | ||
4635 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4636 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4637 | } else { | |
4638 | OVS_NOT_REACHED(); | |
4639 | } | |
4640 | } | |
4641 | ||
4642 | struct ofpbuf * | |
4643 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4644 | ofp_port_t port) | |
4645 | { | |
4646 | struct ofpbuf *request; | |
70ae4f93 BP |
4647 | |
4648 | switch (ofp_version) { | |
4649 | case OFP10_VERSION: | |
4650 | case OFP11_VERSION: | |
4651 | case OFP12_VERSION: | |
4652 | case OFP13_VERSION: | |
4653 | case OFP14_VERSION: | |
4654 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4655 | ofp_version, 0); | |
4656 | break; | |
b79d45a1 BP |
4657 | case OFP15_VERSION: |
4658 | case OFP16_VERSION:{ | |
7448d548 | 4659 | struct ofp15_port_desc_request *req; |
70ae4f93 BP |
4660 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4661 | ofp_version, 0); | |
7448d548 MT |
4662 | req = ofpbuf_put_zeros(request, sizeof *req); |
4663 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4664 | break; |
7448d548 | 4665 | } |
70ae4f93 BP |
4666 | default: |
4667 | OVS_NOT_REACHED(); | |
4668 | } | |
4669 | ||
4670 | return request; | |
4671 | } | |
4672 | ||
2be393ed | 4673 | void |
e28ac5cf | 4674 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4675 | struct ovs_list *replies) |
2be393ed | 4676 | { |
417e7e66 | 4677 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 4678 | size_t start_ofs = reply->size; |
c37c0382 | 4679 | |
6b0f20ac BP |
4680 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4681 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4682 | } |
9e1fd49b | 4683 | \f |
ad99e2ed BP |
4684 | /* ofputil_switch_config */ |
4685 | ||
4686 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4687 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4688 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4689 | static bool | |
4690 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4691 | struct ofputil_switch_config *config) | |
4692 | { | |
0a2869d5 | 4693 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
ad99e2ed | 4694 | ofpraw_pull_assert(&b); |
ad99e2ed | 4695 | |
0a2869d5 | 4696 | const struct ofp_switch_config *osc = ofpbuf_pull(&b, sizeof *osc); |
ad99e2ed BP |
4697 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; |
4698 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4699 | ||
4700 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4701 | if (oh->version < OFP13_VERSION) { | |
4702 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4703 | valid_mask |= ttl_bit; | |
4704 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4705 | } else { | |
4706 | config->invalid_ttl_to_controller = -1; | |
4707 | } | |
4708 | ||
4709 | return !(osc->flags & ~valid_mask); | |
4710 | } | |
4711 | ||
4712 | void | |
4713 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4714 | struct ofputil_switch_config *config) | |
4715 | { | |
4716 | ofputil_decode_switch_config(oh, config); | |
4717 | } | |
4718 | ||
4719 | enum ofperr | |
4720 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4721 | struct ofputil_switch_config *config) | |
4722 | { | |
4723 | return (ofputil_decode_switch_config(oh, config) | |
4724 | ? 0 | |
4725 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4726 | } | |
4727 | ||
4728 | static struct ofpbuf * | |
4729 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4730 | struct ofpbuf *b) | |
4731 | { | |
4732 | const struct ofp_header *oh = b->data; | |
4733 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4734 | osc->flags = htons(config->frag); | |
4735 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4736 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4737 | } | |
4738 | osc->miss_send_len = htons(config->miss_send_len); | |
4739 | return b; | |
4740 | } | |
4741 | ||
4742 | struct ofpbuf * | |
4743 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4744 | const struct ofputil_switch_config *config) | |
4745 | { | |
4746 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4747 | request, 0); | |
4748 | return ofputil_put_switch_config(config, b); | |
4749 | } | |
4750 | ||
4751 | struct ofpbuf * | |
4752 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4753 | enum ofp_version version) | |
4754 | { | |
4755 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4756 | return ofputil_put_switch_config(config, b); | |
4757 | } | |
4758 | \f | |
9e1fd49b BP |
4759 | /* ofputil_switch_features */ |
4760 | ||
4761 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4762 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4763 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4764 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4765 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4766 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4767 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4768 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
50b73fe1 JR |
4769 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_BLOCKED == OFPC12_PORT_BLOCKED); |
4770 | BUILD_ASSERT_DECL((int) OFPUTIL_C_BUNDLES == OFPC14_BUNDLES); | |
4771 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_MONITORING == OFPC14_FLOW_MONITORING); | |
9e1fd49b | 4772 | |
60202987 SH |
4773 | static uint32_t |
4774 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4775 | { | |
0746a84f | 4776 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4777 | switch (ofp_version) { |
4778 | case OFP10_VERSION: | |
4779 | case OFP11_VERSION: | |
4780 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4781 | case OFP12_VERSION: | |
2e1ae200 | 4782 | case OFP13_VERSION: |
50b73fe1 | 4783 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
c37c0382 | 4784 | case OFP14_VERSION: |
42dccab5 | 4785 | case OFP15_VERSION: |
b79d45a1 | 4786 | case OFP16_VERSION: |
50b73fe1 JR |
4787 | return OFPC_COMMON | OFPC12_PORT_BLOCKED | OFPC14_BUNDLES |
4788 | | OFPC14_FLOW_MONITORING; | |
60202987 SH |
4789 | default: |
4790 | /* Caller needs to check osf->header.version itself */ | |
4791 | return 0; | |
4792 | } | |
4793 | } | |
4794 | ||
667bb1fb BP |
4795 | /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into |
4796 | * an abstract representation in '*features', readying 'b' to iterate over the | |
4797 | * OpenFlow port structures following 'osf' with later calls to | |
4798 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_* | |
4799 | * value. */ | |
9e1fd49b | 4800 | enum ofperr |
667bb1fb BP |
4801 | ofputil_pull_switch_features(struct ofpbuf *b, |
4802 | struct ofputil_switch_features *features) | |
9e1fd49b | 4803 | { |
667bb1fb BP |
4804 | const struct ofp_header *oh = b->data; |
4805 | enum ofpraw raw = ofpraw_pull_assert(b); | |
4806 | const struct ofp_switch_features *osf = ofpbuf_pull(b, sizeof *osf); | |
9e1fd49b BP |
4807 | features->datapath_id = ntohll(osf->datapath_id); |
4808 | features->n_buffers = ntohl(osf->n_buffers); | |
4809 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4810 | features->auxiliary_id = 0; |
9e1fd49b | 4811 | |
60202987 SH |
4812 | features->capabilities = ntohl(osf->capabilities) & |
4813 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4814 | |
982697a4 | 4815 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4816 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4817 | features->capabilities |= OFPUTIL_C_STP; | |
4818 | } | |
08d1e234 BP |
4819 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4820 | OFP10_VERSION); | |
2e1ae200 JR |
4821 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4822 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4823 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4824 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4825 | } | |
08d1e234 | 4826 | features->ofpacts = 0; |
2e1ae200 JR |
4827 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4828 | features->auxiliary_id = osf->auxiliary_id; | |
4829 | } | |
9e1fd49b BP |
4830 | } else { |
4831 | return OFPERR_OFPBRC_BAD_VERSION; | |
4832 | } | |
4833 | ||
4834 | return 0; | |
4835 | } | |
4836 | ||
fca6d553 BP |
4837 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4838 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4839 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4840 | * | |
4841 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4842 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4843 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4844 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4845 | * message. | |
4846 | * | |
4847 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4848 | * stats request to get the ports. */ | |
347b7ac4 | 4849 | bool |
fca6d553 | 4850 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4851 | { |
6fd6ed71 | 4852 | struct ofp_header *oh = b->data; |
13e1aff8 | 4853 | size_t phy_port_size; |
347b7ac4 | 4854 | |
fca6d553 | 4855 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4856 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4857 | return false; |
13e1aff8 BP |
4858 | } |
4859 | ||
4860 | phy_port_size = (oh->version == OFP10_VERSION | |
4861 | ? sizeof(struct ofp10_phy_port) | |
4862 | : sizeof(struct ofp11_port)); | |
4863 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4864 | /* There's room for additional ports in the feature reply. | |
4865 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4866 | return true; |
4867 | } | |
13e1aff8 BP |
4868 | |
4869 | /* The feature reply has no room for more ports. Probably the list is | |
4870 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4871 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4872 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4873 | ofpmsg_update_length(b); |
4874 | return false; | |
347b7ac4 JP |
4875 | } |
4876 | ||
9e1fd49b BP |
4877 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4878 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4879 | * information to the buffer with subsequent calls to | |
4880 | * ofputil_put_switch_features_port(). */ | |
4881 | struct ofpbuf * | |
4882 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4883 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4884 | { | |
4885 | struct ofp_switch_features *osf; | |
4886 | struct ofpbuf *b; | |
2e3fa633 SH |
4887 | enum ofp_version version; |
4888 | enum ofpraw raw; | |
982697a4 BP |
4889 | |
4890 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4891 | switch (version) { |
4892 | case OFP10_VERSION: | |
4893 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4894 | break; | |
4895 | case OFP11_VERSION: | |
4896 | case OFP12_VERSION: | |
4897 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4898 | break; | |
2e1ae200 | 4899 | case OFP13_VERSION: |
c37c0382 | 4900 | case OFP14_VERSION: |
42dccab5 | 4901 | case OFP15_VERSION: |
b79d45a1 | 4902 | case OFP16_VERSION: |
2e1ae200 JR |
4903 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4904 | break; | |
2e3fa633 | 4905 | default: |
428b2edd | 4906 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4907 | } |
4908 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4909 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4910 | osf->datapath_id = htonll(features->datapath_id); |
4911 | osf->n_buffers = htonl(features->n_buffers); | |
4912 | osf->n_tables = features->n_tables; | |
4913 | ||
60202987 SH |
4914 | osf->capabilities = htonl(features->capabilities & |
4915 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4916 | switch (version) { |
4917 | case OFP10_VERSION: | |
9e1fd49b BP |
4918 | if (features->capabilities & OFPUTIL_C_STP) { |
4919 | osf->capabilities |= htonl(OFPC10_STP); | |
4920 | } | |
08d1e234 BP |
4921 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4922 | OFP10_VERSION); | |
2e3fa633 | 4923 | break; |
2e1ae200 | 4924 | case OFP13_VERSION: |
c37c0382 | 4925 | case OFP14_VERSION: |
42dccab5 | 4926 | case OFP15_VERSION: |
b79d45a1 | 4927 | case OFP16_VERSION: |
2e1ae200 JR |
4928 | osf->auxiliary_id = features->auxiliary_id; |
4929 | /* fall through */ | |
2e3fa633 SH |
4930 | case OFP11_VERSION: |
4931 | case OFP12_VERSION: | |
9e1fd49b BP |
4932 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4933 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4934 | } | |
2e3fa633 SH |
4935 | break; |
4936 | default: | |
428b2edd | 4937 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4938 | } |
4939 | ||
4940 | return b; | |
4941 | } | |
4942 | ||
4943 | /* Encodes 'pp' into the format required by the switch_features message already | |
4944 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4945 | * and appends the encoded version to 'b'. */ | |
4946 | void | |
4947 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4948 | struct ofpbuf *b) | |
4949 | { | |
6fd6ed71 | 4950 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4951 | |
e0c91c0c | 4952 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4953 | /* Try adding a port description to the message, but drop it again if |
4954 | * the buffer overflows. (This possibility for overflow is why | |
4955 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4956 | size_t start_ofs = b->size; |
e0c91c0c | 4957 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4958 | if (b->size > UINT16_MAX) { |
4959 | b->size = start_ofs; | |
6b0f20ac | 4960 | } |
e0c91c0c | 4961 | } |
9e1fd49b BP |
4962 | } |
4963 | \f | |
4964 | /* ofputil_port_status */ | |
4965 | ||
4966 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4967 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4968 | enum ofperr | |
982697a4 | 4969 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4970 | struct ofputil_port_status *ps) |
4971 | { | |
0a2869d5 | 4972 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
982697a4 | 4973 | ofpraw_pull_assert(&b); |
982697a4 | 4974 | |
0a2869d5 | 4975 | const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops); |
9e1fd49b BP |
4976 | if (ops->reason != OFPPR_ADD && |
4977 | ops->reason != OFPPR_DELETE && | |
4978 | ops->reason != OFPPR_MODIFY) { | |
4979 | return OFPERR_NXBRC_BAD_REASON; | |
4980 | } | |
4981 | ps->reason = ops->reason; | |
4982 | ||
0a2869d5 | 4983 | int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4984 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4985 | return retval; |
4986 | } | |
4987 | ||
4988 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4989 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4990 | * a buffer owned by the caller. */ | |
4991 | struct ofpbuf * | |
4992 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4993 | enum ofputil_protocol protocol) | |
4994 | { | |
4995 | struct ofp_port_status *ops; | |
4996 | struct ofpbuf *b; | |
2e3fa633 SH |
4997 | enum ofp_version version; |
4998 | enum ofpraw raw; | |
982697a4 BP |
4999 | |
5000 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
5001 | switch (version) { |
5002 | case OFP10_VERSION: | |
5003 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
5004 | break; | |
5005 | ||
5006 | case OFP11_VERSION: | |
5007 | case OFP12_VERSION: | |
2e1ae200 | 5008 | case OFP13_VERSION: |
2e3fa633 SH |
5009 | raw = OFPRAW_OFPT11_PORT_STATUS; |
5010 | break; | |
5011 | ||
8c3cc785 | 5012 | case OFP14_VERSION: |
42dccab5 | 5013 | case OFP15_VERSION: |
8c3cc785 BP |
5014 | raw = OFPRAW_OFPT14_PORT_STATUS; |
5015 | break; | |
5016 | ||
2f2b904f BP |
5017 | case OFP16_VERSION: |
5018 | raw = OFPRAW_OFPT16_PORT_STATUS; | |
5019 | break; | |
5020 | ||
2e3fa633 | 5021 | default: |
428b2edd | 5022 | OVS_NOT_REACHED(); |
2e3fa633 SH |
5023 | } |
5024 | ||
5025 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 5026 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 5027 | ops->reason = ps->reason; |
982697a4 BP |
5028 | ofputil_put_phy_port(version, &ps->desc, b); |
5029 | ofpmsg_update_length(b); | |
9e1fd49b BP |
5030 | return b; |
5031 | } | |
918f2b82 | 5032 | |
9e1fd49b BP |
5033 | /* ofputil_port_mod */ |
5034 | ||
18cc69d9 BP |
5035 | static enum ofperr |
5036 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
5037 | struct ofputil_port_mod *pm) | |
5038 | { | |
b611d3ac BP |
5039 | ovs_be32 advertise; |
5040 | enum ofperr error; | |
18cc69d9 | 5041 | |
b611d3ac BP |
5042 | error = ofpprop_parse_be32(property, &advertise); |
5043 | if (!error) { | |
5044 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 5045 | } |
b611d3ac | 5046 | return error; |
18cc69d9 BP |
5047 | } |
5048 | ||
2f2b904f BP |
5049 | static enum ofperr |
5050 | ofputil_decode_ofp10_port_mod(const struct ofp10_port_mod *opm, | |
5051 | struct ofputil_port_mod *pm) | |
5052 | { | |
5053 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); | |
5054 | pm->hw_addr = opm->hw_addr; | |
5055 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
5056 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
5057 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
5058 | return 0; | |
5059 | } | |
5060 | ||
5061 | static enum ofperr | |
5062 | ofputil_decode_ofp11_port_mod(const struct ofp11_port_mod *opm, | |
5063 | struct ofputil_port_mod *pm) | |
9e1fd49b | 5064 | { |
2f2b904f | 5065 | enum ofperr error; |
9e1fd49b | 5066 | |
2f2b904f BP |
5067 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
5068 | if (error) { | |
5069 | return error; | |
5070 | } | |
5071 | ||
5072 | pm->hw_addr = opm->hw_addr; | |
5073 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5074 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
5075 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
5076 | ||
5077 | return 0; | |
5078 | } | |
5079 | ||
5080 | static enum ofperr | |
5081 | ofputil_decode_ofp14_port_mod_properties(struct ofpbuf *b, bool loose, | |
5082 | struct ofputil_port_mod *pm) | |
5083 | { | |
5084 | while (b->size > 0) { | |
5085 | struct ofpbuf property; | |
9e1fd49b | 5086 | enum ofperr error; |
2f2b904f | 5087 | uint64_t type; |
9e1fd49b | 5088 | |
2f2b904f | 5089 | error = ofpprop_pull(b, &property, &type); |
9e1fd49b BP |
5090 | if (error) { |
5091 | return error; | |
5092 | } | |
5093 | ||
2f2b904f BP |
5094 | switch (type) { |
5095 | case OFPPMPT14_ETHERNET: | |
5096 | error = parse_port_mod_ethernet_property(&property, pm); | |
5097 | break; | |
18cc69d9 | 5098 | |
2f2b904f BP |
5099 | default: |
5100 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); | |
5101 | break; | |
5102 | } | |
18cc69d9 | 5103 | |
18cc69d9 BP |
5104 | if (error) { |
5105 | return error; | |
5106 | } | |
2f2b904f BP |
5107 | } |
5108 | return 0; | |
5109 | } | |
18cc69d9 | 5110 | |
2f2b904f BP |
5111 | static enum ofperr |
5112 | ofputil_decode_ofp14_port_mod(struct ofpbuf *b, bool loose, | |
5113 | struct ofputil_port_mod *pm) | |
5114 | { | |
5115 | const struct ofp14_port_mod *opm = ofpbuf_pull(b, sizeof *opm); | |
5116 | enum ofperr error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
5117 | if (error) { | |
5118 | return error; | |
5119 | } | |
18cc69d9 | 5120 | |
2f2b904f BP |
5121 | pm->hw_addr = opm->hw_addr; |
5122 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5123 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
18cc69d9 | 5124 | |
2f2b904f BP |
5125 | return ofputil_decode_ofp14_port_mod_properties(b, loose, pm); |
5126 | } | |
18cc69d9 | 5127 | |
2f2b904f BP |
5128 | static enum ofperr |
5129 | ofputil_decode_ofp16_port_mod(struct ofpbuf *b, bool loose, | |
5130 | struct ofputil_port_mod *pm) | |
5131 | { | |
5132 | const struct ofp16_port_mod *opm = ofpbuf_pull(b, sizeof *opm); | |
5133 | enum ofperr error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
5134 | if (error) { | |
5135 | return error; | |
5136 | } | |
18cc69d9 | 5137 | |
2f2b904f BP |
5138 | if (opm->hw_addr_type & htons(OFPPHAT16_EUI48)) { |
5139 | pm->hw_addr = opm->hw_addr; | |
5140 | } | |
5141 | if (opm->hw_addr_type & htons(OFPPHAT16_EUI64)) { | |
5142 | pm->hw_addr64 = opm->hw_addr64; | |
5143 | } | |
5144 | pm->hw_addr = opm->hw_addr; | |
5145 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
5146 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
18cc69d9 | 5147 | |
2f2b904f BP |
5148 | return ofputil_decode_ofp14_port_mod_properties(b, loose, pm); |
5149 | } | |
5150 | ||
5151 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in | |
5152 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5153 | enum ofperr | |
5154 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
5155 | struct ofputil_port_mod *pm, bool loose) | |
5156 | { | |
5157 | memset(pm, 0, sizeof *pm); | |
5158 | ||
5159 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
5160 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
5161 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
5162 | return ofputil_decode_ofp10_port_mod(b.data, pm); | |
5163 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { | |
5164 | return ofputil_decode_ofp11_port_mod(b.data, pm); | |
5165 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { | |
5166 | return ofputil_decode_ofp14_port_mod(&b, loose, pm); | |
5167 | } else if (raw == OFPRAW_OFPT16_PORT_MOD) { | |
5168 | return ofputil_decode_ofp16_port_mod(&b, loose, pm); | |
9e1fd49b | 5169 | } else { |
982697a4 | 5170 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
5171 | } |
5172 | ||
5173 | pm->config &= pm->mask; | |
5174 | return 0; | |
5175 | } | |
5176 | ||
5177 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
5178 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
5179 | * owned by the caller. */ | |
5180 | struct ofpbuf * | |
5181 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
5182 | enum ofputil_protocol protocol) | |
5183 | { | |
2e3fa633 | 5184 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
5185 | struct ofpbuf *b; |
5186 | ||
2e3fa633 SH |
5187 | switch (ofp_version) { |
5188 | case OFP10_VERSION: { | |
9e1fd49b BP |
5189 | struct ofp10_port_mod *opm; |
5190 | ||
982697a4 BP |
5191 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
5192 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 5193 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 5194 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5195 | opm->config = htonl(pm->config & OFPPC10_ALL); |
5196 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
5197 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
5198 | break; |
5199 | } | |
5200 | ||
5fe7c919 | 5201 | case OFP11_VERSION: |
2e1ae200 JR |
5202 | case OFP12_VERSION: |
5203 | case OFP13_VERSION: { | |
9e1fd49b BP |
5204 | struct ofp11_port_mod *opm; |
5205 | ||
982697a4 BP |
5206 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
5207 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 5208 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 5209 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5210 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5211 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5212 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
5213 | break; |
5214 | } | |
42dccab5 | 5215 | case OFP14_VERSION: |
2f2b904f | 5216 | case OFP15_VERSION: { |
18cc69d9 BP |
5217 | struct ofp14_port_mod *opm; |
5218 | ||
b611d3ac | 5219 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
5220 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
5221 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 5222 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
5223 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5224 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5225 | ||
5226 | if (pm->advertise) { | |
b611d3ac BP |
5227 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
5228 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 5229 | } |
c37c0382 | 5230 | break; |
18cc69d9 | 5231 | } |
2f2b904f BP |
5232 | case OFP16_VERSION: { |
5233 | struct ofp16_port_mod *opm; | |
5234 | ||
5235 | b = ofpraw_alloc(OFPRAW_OFPT16_PORT_MOD, ofp_version, 0); | |
5236 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
5237 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
5238 | if (!eth_addr_is_zero(pm->hw_addr)) { | |
5239 | opm->hw_addr_type |= htons(OFPPHAT16_EUI48); | |
5240 | opm->hw_addr = pm->hw_addr; | |
5241 | } | |
5242 | if (!eth_addr64_is_zero(pm->hw_addr64)) { | |
5243 | opm->hw_addr_type |= htons(OFPPHAT16_EUI64); | |
5244 | opm->hw_addr64 = pm->hw_addr64; | |
5245 | } | |
5246 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
5247 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5248 | ||
5249 | if (pm->advertise) { | |
5250 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, | |
5251 | netdev_port_features_to_ofp11(pm->advertise)); | |
5252 | } | |
5253 | break; | |
5254 | } | |
918f2b82 | 5255 | default: |
428b2edd | 5256 | OVS_NOT_REACHED(); |
918f2b82 AZ |
5257 | } |
5258 | ||
5259 | return b; | |
5260 | } | |
72b25867 BP |
5261 | \f |
5262 | /* Table features. */ | |
918f2b82 | 5263 | |
5deff5aa | 5264 | static enum ofperr |
9a4eddbb | 5265 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 5266 | uint64_t *typep) |
5deff5aa | 5267 | { |
9a4eddbb | 5268 | enum ofperr error; |
5deff5aa | 5269 | |
c5562271 | 5270 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 5271 | if (payload && !error) { |
b611d3ac | 5272 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 5273 | } |
9a4eddbb | 5274 | return error; |
5deff5aa AW |
5275 | } |
5276 | ||
5277 | static enum ofperr | |
08d1e234 BP |
5278 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
5279 | uint64_t *ofpacts) | |
5deff5aa | 5280 | { |
08d1e234 | 5281 | uint32_t types = 0; |
5deff5aa | 5282 | |
6fd6ed71 | 5283 | while (payload->size > 0) { |
08d1e234 | 5284 | enum ofperr error; |
34a543e3 | 5285 | uint64_t type; |
08d1e234 | 5286 | |
34a543e3 | 5287 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
5288 | if (error) { |
5289 | return error; | |
5290 | } | |
08d1e234 BP |
5291 | if (type < CHAR_BIT * sizeof types) { |
5292 | types |= 1u << type; | |
5deff5aa AW |
5293 | } |
5294 | } | |
08d1e234 BP |
5295 | |
5296 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
5297 | return 0; |
5298 | } | |
5299 | ||
5300 | static enum ofperr | |
5301 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
5302 | { | |
5303 | *insts = 0; | |
6fd6ed71 | 5304 | while (payload->size > 0) { |
5deff5aa AW |
5305 | enum ovs_instruction_type inst; |
5306 | enum ofperr error; | |
34a543e3 | 5307 | uint64_t ofpit; |
5deff5aa | 5308 | |
72b25867 BP |
5309 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
5310 | * It seems clear that they aren't padded to 8 bytes, though, because | |
5311 | * both standards say that "non-experimenter instructions are 4 bytes" | |
5312 | * and do not mention any padding before the first instruction ID. | |
5313 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
5314 | * aligned on an odd 4-byte boundary.) | |
5315 | * | |
5316 | * Anyway, we just assume they're all glommed together on byte | |
5317 | * boundaries. */ | |
34a543e3 | 5318 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
5319 | if (error) { |
5320 | return error; | |
5321 | } | |
5322 | ||
5323 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
5324 | if (!error) { | |
5325 | *insts |= 1u << inst; | |
5326 | } else if (!loose) { | |
5327 | return error; | |
5328 | } | |
5329 | } | |
5330 | return 0; | |
5331 | } | |
5332 | ||
5333 | static enum ofperr | |
5334 | parse_table_features_next_table(struct ofpbuf *payload, | |
5335 | unsigned long int *next_tables) | |
5336 | { | |
5337 | size_t i; | |
5338 | ||
5339 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
5340 | for (i = 0; i < payload->size; i++) { |
5341 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 5342 | if (id >= 255) { |
9a4eddbb | 5343 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
5344 | } |
5345 | bitmap_set1(next_tables, id); | |
5346 | } | |
5347 | return 0; | |
5348 | } | |
5349 | ||
5deff5aa AW |
5350 | static enum ofperr |
5351 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 5352 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 5353 | { |
abadfcb0 BP |
5354 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
5355 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 5356 | |
6fd6ed71 | 5357 | while (payload->size > 0) { |
5deff5aa AW |
5358 | const struct mf_field *field; |
5359 | enum ofperr error; | |
5360 | bool hasmask; | |
5361 | ||
04f48a68 | 5362 | error = nx_pull_header(payload, NULL, &field, &hasmask); |
5deff5aa | 5363 | if (!error) { |
abadfcb0 | 5364 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
5365 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
5366 | return error; | |
5367 | } | |
5368 | } | |
5369 | if (exactp) { | |
5370 | *exactp = exact; | |
abadfcb0 | 5371 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
5372 | return OFPERR_OFPBMC_BAD_MASK; |
5373 | } | |
5374 | if (maskedp) { | |
5375 | *maskedp = masked; | |
abadfcb0 | 5376 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
5377 | return OFPERR_OFPBMC_BAD_MASK; |
5378 | } | |
5379 | return 0; | |
5380 | } | |
5381 | ||
5382 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
5383 | * ofputil_table_features in 'tf'. | |
5384 | * | |
5385 | * If 'loose' is true, this function ignores properties and values that it does | |
5386 | * not understand, as a controller would want to do when interpreting | |
5387 | * capabilities provided by a switch. If 'loose' is false, this function | |
5388 | * treats unknown properties and values as an error, as a switch would want to | |
5389 | * do when interpreting a configuration request made by a controller. | |
5390 | * | |
5391 | * A single OpenFlow message can specify features for multiple tables. Calling | |
5392 | * this function multiple times for a single 'msg' iterates through the tables | |
5393 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
5394 | * and not modify them between calls. | |
5395 | * | |
5396 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
5397 | * a positive "enum ofperr" value. */ | |
5398 | int | |
5399 | ofputil_decode_table_features(struct ofpbuf *msg, | |
5400 | struct ofputil_table_features *tf, bool loose) | |
5401 | { | |
3c1bb396 BP |
5402 | memset(tf, 0, sizeof *tf); |
5403 | ||
6fd6ed71 | 5404 | if (!msg->header) { |
5deff5aa AW |
5405 | ofpraw_pull_assert(msg); |
5406 | } | |
5407 | ||
6fd6ed71 | 5408 | if (!msg->size) { |
5deff5aa AW |
5409 | return EOF; |
5410 | } | |
5411 | ||
0a2869d5 BP |
5412 | const struct ofp_header *oh = msg->header; |
5413 | struct ofp13_table_features *otf = msg->data; | |
6fd6ed71 | 5414 | if (msg->size < sizeof *otf) { |
9a4eddbb | 5415 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
5416 | } |
5417 | ||
0a2869d5 | 5418 | unsigned int len = ntohs(otf->length); |
6fd6ed71 | 5419 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 5420 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 5421 | } |
5deff5aa AW |
5422 | |
5423 | tf->table_id = otf->table_id; | |
5424 | if (tf->table_id == OFPTT_ALL) { | |
5425 | return OFPERR_OFPTFFC_BAD_TABLE; | |
5426 | } | |
5427 | ||
f9ac0f03 | 5428 | ovs_strlcpy_arrays(tf->name, otf->name); |
5deff5aa AW |
5429 | tf->metadata_match = otf->metadata_match; |
5430 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
5431 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
5432 | if (oh->version >= OFP14_VERSION) { | |
5433 | uint32_t caps = ntohl(otf->capabilities); | |
5434 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
5435 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
5436 | } else { | |
5437 | tf->supports_eviction = -1; | |
5438 | tf->supports_vacancy_events = -1; | |
5439 | } | |
5deff5aa AW |
5440 | tf->max_entries = ntohl(otf->max_entries); |
5441 | ||
0a2869d5 BP |
5442 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
5443 | len); | |
5444 | ofpbuf_pull(&properties, sizeof *otf); | |
6fd6ed71 | 5445 | while (properties.size > 0) { |
5deff5aa AW |
5446 | struct ofpbuf payload; |
5447 | enum ofperr error; | |
34a543e3 | 5448 | uint64_t type; |
5deff5aa | 5449 | |
ae665de5 | 5450 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
5451 | if (error) { |
5452 | return error; | |
5453 | } | |
5454 | ||
5455 | switch ((enum ofp13_table_feature_prop_type) type) { | |
5456 | case OFPTFPT13_INSTRUCTIONS: | |
5457 | error = parse_instruction_ids(&payload, loose, | |
5458 | &tf->nonmiss.instructions); | |
5459 | break; | |
5460 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
5461 | error = parse_instruction_ids(&payload, loose, | |
5462 | &tf->miss.instructions); | |
5463 | break; | |
5464 | ||
5465 | case OFPTFPT13_NEXT_TABLES: | |
5466 | error = parse_table_features_next_table(&payload, | |
5467 | tf->nonmiss.next); | |
5468 | break; | |
5469 | case OFPTFPT13_NEXT_TABLES_MISS: | |
5470 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
5471 | break; | |
5472 | ||
5473 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
5474 | error = parse_action_bitmap(&payload, oh->version, |
5475 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
5476 | break; |
5477 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
5478 | error = parse_action_bitmap(&payload, oh->version, |
5479 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
5480 | break; |
5481 | ||
5482 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
5483 | error = parse_action_bitmap(&payload, oh->version, |
5484 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
5485 | break; |
5486 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
5487 | error = parse_action_bitmap(&payload, oh->version, |
5488 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
5489 | break; |
5490 | ||
5491 | case OFPTFPT13_MATCH: | |
5492 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
5493 | break; | |
5494 | case OFPTFPT13_WILDCARDS: | |
5495 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
5496 | break; | |
5497 | ||
5498 | case OFPTFPT13_WRITE_SETFIELD: | |
5499 | error = parse_oxms(&payload, loose, | |
5500 | &tf->nonmiss.write.set_fields, NULL); | |
5501 | break; | |
5502 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
5503 | error = parse_oxms(&payload, loose, | |
5504 | &tf->miss.write.set_fields, NULL); | |
5505 | break; | |
5506 | case OFPTFPT13_APPLY_SETFIELD: | |
5507 | error = parse_oxms(&payload, loose, | |
5508 | &tf->nonmiss.apply.set_fields, NULL); | |
5509 | break; | |
5510 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
5511 | error = parse_oxms(&payload, loose, | |
5512 | &tf->miss.apply.set_fields, NULL); | |
5513 | break; | |
5514 | ||
5515 | case OFPTFPT13_EXPERIMENTER: | |
5516 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 5517 | default: |
34a543e3 | 5518 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
5519 | break; |
5520 | } | |
5521 | if (error) { | |
5522 | return error; | |
5523 | } | |
5524 | } | |
5525 | ||
5526 | /* Fix inconsistencies: | |
5527 | * | |
e7227821 BP |
5528 | * - Turn on 'match' bits that are set in 'mask', because maskable |
5529 | * fields are matchable. | |
5deff5aa AW |
5530 | * |
5531 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
5532 | * that is arbitrarily maskable can be wildcarded entirely. |
5533 | * | |
5534 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
5535 | * must be matchable for it to be meaningfully wildcarded. */ | |
5536 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 5537 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 5538 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
5539 | |
5540 | return 0; | |
5541 | } | |
5542 | ||
5543 | /* Encodes and returns a request to obtain the table features of a switch. | |
5544 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5545 | struct ofpbuf * | |
5546 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
5547 | { | |
5548 | struct ofpbuf *request = NULL; | |
5549 | ||
5550 | switch (ofp_version) { | |
5551 | case OFP10_VERSION: | |
5552 | case OFP11_VERSION: | |
5553 | case OFP12_VERSION: | |
5554 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
5555 | "(\'-O OpenFlow13\')"); | |
5556 | case OFP13_VERSION: | |
5557 | case OFP14_VERSION: | |
42dccab5 | 5558 | case OFP15_VERSION: |
b79d45a1 | 5559 | case OFP16_VERSION: |
5deff5aa AW |
5560 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
5561 | ofp_version, 0); | |
5562 | break; | |
5563 | default: | |
5564 | OVS_NOT_REACHED(); | |
5565 | } | |
5566 | ||
5567 | return request; | |
5568 | } | |
5569 | ||
3c4e10fb BP |
5570 | static void |
5571 | put_fields_property(struct ofpbuf *reply, | |
5572 | const struct mf_bitmap *fields, | |
5573 | const struct mf_bitmap *masks, | |
5574 | enum ofp13_table_feature_prop_type property, | |
5575 | enum ofp_version version) | |
5576 | { | |
5577 | size_t start_ofs; | |
5578 | int field; | |
5579 | ||
c5562271 | 5580 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 5581 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
5582 | nx_put_header(reply, field, version, |
5583 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 5584 | } |
c5562271 | 5585 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5586 | } |
5587 | ||
5588 | static void | |
5589 | put_table_action_features(struct ofpbuf *reply, | |
5590 | const struct ofputil_table_action_features *taf, | |
5591 | enum ofp13_table_feature_prop_type actions_type, | |
5592 | enum ofp13_table_feature_prop_type set_fields_type, | |
5593 | int miss_offset, enum ofp_version version) | |
5594 | { | |
c5562271 BP |
5595 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
5596 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
5597 | version))); | |
3c4e10fb BP |
5598 | put_fields_property(reply, &taf->set_fields, NULL, |
5599 | set_fields_type + miss_offset, version); | |
5600 | } | |
5601 | ||
5602 | static void | |
5603 | put_table_instruction_features( | |
5604 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
5605 | int miss_offset, enum ofp_version version) | |
5606 | { | |
5607 | size_t start_ofs; | |
5608 | uint8_t table_id; | |
5609 | ||
c5562271 BP |
5610 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
5611 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
5612 | version))); | |
3c4e10fb | 5613 | |
c5562271 | 5614 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
5615 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
5616 | ofpbuf_put(reply, &table_id, 1); | |
5617 | } | |
c5562271 | 5618 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5619 | |
5620 | put_table_action_features(reply, &tif->write, | |
5621 | OFPTFPT13_WRITE_ACTIONS, | |
5622 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
5623 | put_table_action_features(reply, &tif->apply, | |
5624 | OFPTFPT13_APPLY_ACTIONS, | |
5625 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
5626 | } | |
5627 | ||
5628 | void | |
5629 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 5630 | struct ovs_list *replies) |
3c4e10fb | 5631 | { |
417e7e66 | 5632 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
3c4e10fb | 5633 | enum ofp_version version = ofpmp_version(replies); |
6fd6ed71 | 5634 | size_t start_ofs = reply->size; |
3c4e10fb BP |
5635 | struct ofp13_table_features *otf; |
5636 | ||
5637 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
5638 | otf->table_id = tf->table_id; | |
f9ac0f03 | 5639 | ovs_strlcpy_arrays(otf->name, tf->name); |
3c4e10fb BP |
5640 | otf->metadata_match = tf->metadata_match; |
5641 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
5642 | if (version >= OFP14_VERSION) { |
5643 | if (tf->supports_eviction) { | |
5644 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
5645 | } | |
5646 | if (tf->supports_vacancy_events) { | |
5647 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
5648 | } | |
5649 | } | |
3c4e10fb BP |
5650 | otf->max_entries = htonl(tf->max_entries); |
5651 | ||
5652 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
5653 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
5654 | ||
5655 | put_fields_property(reply, &tf->match, &tf->mask, | |
5656 | OFPTFPT13_MATCH, version); | |
5657 | put_fields_property(reply, &tf->wildcard, NULL, | |
5658 | OFPTFPT13_WILDCARDS, version); | |
5659 | ||
5660 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5661 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5662 | ofpmp_postappend(replies, start_ofs); |
5663 | } | |
5664 | ||
bab86012 SJ |
5665 | static enum ofperr |
5666 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5667 | struct ofputil_table_desc *td) | |
5668 | { | |
5669 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5670 | ||
5671 | if (property->size != sizeof *otv) { | |
5672 | return OFPERR_OFPBPC_BAD_LEN; | |
5673 | } | |
5674 | ||
5675 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5676 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5677 | td->table_vacancy.vacancy = otv->vacancy; | |
5678 | return 0; | |
5679 | } | |
5680 | ||
03c72922 BP |
5681 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5682 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5683 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5684 | * value. */ | |
5685 | int | |
5686 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5687 | struct ofputil_table_desc *td, | |
5688 | enum ofp_version version) | |
5689 | { | |
03c72922 BP |
5690 | memset(td, 0, sizeof *td); |
5691 | ||
5692 | if (!msg->header) { | |
5693 | ofpraw_pull_assert(msg); | |
5694 | } | |
5695 | ||
5696 | if (!msg->size) { | |
5697 | return EOF; | |
5698 | } | |
5699 | ||
0a2869d5 | 5700 | struct ofp14_table_desc *otd = ofpbuf_try_pull(msg, sizeof *otd); |
03c72922 BP |
5701 | if (!otd) { |
5702 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5703 | "leftover bytes at end", msg->size); | |
5704 | return OFPERR_OFPBRC_BAD_LEN; | |
5705 | } | |
5706 | ||
5707 | td->table_id = otd->table_id; | |
0a2869d5 | 5708 | size_t length = ntohs(otd->length); |
03c72922 BP |
5709 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { |
5710 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5711 | "length %"PRIuSIZE, length); | |
5712 | return OFPERR_OFPBRC_BAD_LEN; | |
5713 | } | |
5714 | length -= sizeof *otd; | |
03c72922 BP |
5715 | |
5716 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5717 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5718 | td->eviction_flags = UINT32_MAX; |
5719 | ||
0a2869d5 BP |
5720 | struct ofpbuf properties = ofpbuf_const_initializer( |
5721 | ofpbuf_pull(msg, length), length); | |
03c72922 BP |
5722 | while (properties.size > 0) { |
5723 | struct ofpbuf payload; | |
5724 | enum ofperr error; | |
34a543e3 | 5725 | uint64_t type; |
03c72922 | 5726 | |
c5562271 | 5727 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5728 | if (error) { |
5729 | return error; | |
5730 | } | |
5731 | ||
5732 | switch (type) { | |
5733 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5734 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5735 | break; |
5736 | ||
bab86012 SJ |
5737 | case OFPTMPT14_VACANCY: |
5738 | error = parse_table_desc_vacancy_property(&payload, td); | |
5739 | break; | |
5740 | ||
03c72922 | 5741 | default: |
34a543e3 | 5742 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5743 | break; |
5744 | } | |
5745 | ||
5746 | if (error) { | |
5747 | return error; | |
5748 | } | |
5749 | } | |
5750 | ||
5751 | return 0; | |
5752 | } | |
5753 | ||
5754 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5755 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5756 | struct ofpbuf * | |
5757 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5758 | { | |
5759 | struct ofpbuf *request = NULL; | |
5760 | ||
5761 | if (ofp_version >= OFP14_VERSION) { | |
5762 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5763 | ofp_version, 0); | |
5764 | } else { | |
5765 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5766 | "(\'-O OpenFlow14\')"); | |
5767 | } | |
5768 | ||
5769 | return request; | |
5770 | } | |
5771 | ||
5772 | /* Function to append Table desc information in a reply list. */ | |
5773 | void | |
5774 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5775 | struct ovs_list *replies, | |
5776 | enum ofp_version version) | |
5777 | { | |
417e7e66 | 5778 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
03c72922 BP |
5779 | size_t start_otd; |
5780 | struct ofp14_table_desc *otd; | |
5781 | ||
5782 | start_otd = reply->size; | |
5783 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5784 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5785 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5786 | } |
bab86012 SJ |
5787 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5788 | struct ofp14_table_mod_prop_vacancy *otv; | |
5789 | ||
303721ee | 5790 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5791 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5792 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5793 | otv->vacancy = td->table_vacancy.vacancy; | |
5794 | } | |
03c72922 BP |
5795 | |
5796 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5797 | otd->length = htons(reply->size - start_otd); | |
5798 | otd->table_id = td->table_id; | |
5799 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5800 | td->eviction, td->vacancy, |
5801 | version); | |
03c72922 BP |
5802 | ofpmp_postappend(replies, start_otd); |
5803 | } | |
5804 | ||
de7d3c07 SJ |
5805 | /* This function parses Vacancy property, and decodes the |
5806 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5807 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5808 | * greater than vacancy_up and also when current vacancy has non-zero | |
5809 | * value. Returns 0 on success. */ | |
5810 | static enum ofperr | |
5811 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5812 | struct ofputil_table_mod *tm) | |
5813 | { | |
5814 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5815 | ||
5816 | if (property->size != sizeof *otv) { | |
5817 | return OFPERR_OFPBPC_BAD_LEN; | |
5818 | } | |
5819 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5820 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5821 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5822 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5823 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5824 | return OFPERR_OFPBPC_BAD_VALUE; |
5825 | } | |
5826 | if (tm->table_vacancy.vacancy_down > 100 || | |
5827 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5828 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5829 | "should not be greater than 100"); | |
de7d3c07 SJ |
5830 | return OFPERR_OFPBPC_BAD_VALUE; |
5831 | } | |
5832 | tm->table_vacancy.vacancy = otv->vacancy; | |
5833 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5834 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5835 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5836 | return OFPERR_OFPBPC_BAD_VALUE; |
5837 | } | |
5838 | return 0; | |
5839 | } | |
5840 | ||
5841 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5842 | * table configuration (a table mod, table stats, or table features message), | |
5843 | * returns the table vacancy configuration that it specifies. | |
5844 | * | |
5845 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5846 | * so for other 'version' this function always returns | |
5847 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5848 | static enum ofputil_table_vacancy | |
5849 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5850 | { | |
5851 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5852 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5853 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5854 | } | |
5855 | ||
3c1bb396 BP |
5856 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5857 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5858 | * returns the table eviction configuration that it specifies. |
5859 | * | |
5860 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5861 | * so for other 'version' values this function always returns | |
5862 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5863 | static enum ofputil_table_eviction | |
5864 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5865 | { | |
5866 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5867 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5868 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5869 | } | |
5870 | ||
5871 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5872 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5873 | * 'eviction' values. */ | |
5874 | static ovs_be32 | |
5875 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5876 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5877 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5878 | enum ofp_version version) |
5879 | { | |
de7d3c07 | 5880 | uint32_t config = 0; |
7c9afefd | 5881 | /* Search for "OFPTC_* Table Configuration" in the documentation for more |
82c22d34 BP |
5882 | * information on the crazy evolution of this field. */ |
5883 | switch (version) { | |
5884 | case OFP10_VERSION: | |
5885 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5886 | return htonl(0); | |
5887 | ||
5888 | case OFP11_VERSION: | |
5889 | case OFP12_VERSION: | |
5890 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5891 | switch (miss) { | |
5892 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5893 | /* Really this shouldn't be used for encoding (the caller should | |
5894 | * provide a specific value) but I can't imagine that defaulting to | |
5895 | * the fall-through case here will hurt. */ | |
5896 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5897 | default: | |
5898 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5899 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5900 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5901 | case OFPUTIL_TABLE_MISS_DROP: | |
5902 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5903 | } | |
5904 | OVS_NOT_REACHED(); | |
5905 | ||
5906 | case OFP13_VERSION: | |
5907 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5908 | * flags, so this is correct. */ | |
5909 | return htonl(0); | |
5910 | ||
5911 | case OFP14_VERSION: | |
5912 | case OFP15_VERSION: | |
b79d45a1 | 5913 | case OFP16_VERSION: |
de7d3c07 SJ |
5914 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5915 | * OFPTC14_VACANCY_EVENTS. */ | |
5916 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5917 | config |= OFPTC14_EVICTION; | |
5918 | } | |
5919 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5920 | config |= OFPTC14_VACANCY_EVENTS; | |
5921 | } | |
5922 | return htonl(config); | |
82c22d34 BP |
5923 | } |
5924 | ||
5925 | OVS_NOT_REACHED(); | |
5926 | } | |
5927 | ||
5928 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5929 | * table configuration (a table mod, table stats, or table features message), | |
5930 | * returns the table miss configuration that it specifies. | |
5931 | * | |
5932 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5933 | * other 'version' values this function always returns | |
5934 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5935 | static enum ofputil_table_miss |
82c22d34 | 5936 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5937 | { |
5938 | uint32_t config = ntohl(config_); | |
5939 | ||
82c22d34 | 5940 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5941 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5942 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5943 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5944 | ||
5945 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5946 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5947 | ||
5948 | case OFPTC11_TABLE_MISS_DROP: | |
5949 | return OFPUTIL_TABLE_MISS_DROP; | |
5950 | ||
5951 | default: | |
5952 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5953 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5954 | } | |
5955 | } else { | |
5956 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5957 | } | |
5958 | } | |
5959 | ||
918f2b82 AZ |
5960 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5961 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5962 | enum ofperr | |
5963 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5964 | struct ofputil_table_mod *pm) | |
5965 | { | |
82c22d34 BP |
5966 | memset(pm, 0, sizeof *pm); |
5967 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5968 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5969 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5970 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 | 5971 | |
0a2869d5 BP |
5972 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5973 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
918f2b82 | 5974 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { |
6fd6ed71 | 5975 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5976 | |
5977 | pm->table_id = otm->table_id; | |
82c22d34 | 5978 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5979 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5980 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5981 | ||
5982 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5983 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5984 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5985 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5986 | while (b.size > 0) { |
5987 | struct ofpbuf property; | |
5988 | enum ofperr error; | |
34a543e3 | 5989 | uint64_t type; |
82c22d34 | 5990 | |
c5562271 | 5991 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5992 | if (error) { |
5993 | return error; | |
5994 | } | |
5995 | ||
5996 | switch (type) { | |
5997 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5998 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5999 | break; |
6000 | ||
de7d3c07 SJ |
6001 | case OFPTMPT14_VACANCY: |
6002 | error = parse_table_mod_vacancy_property(&property, pm); | |
6003 | break; | |
6004 | ||
82c22d34 BP |
6005 | default: |
6006 | error = OFPERR_OFPBRC_BAD_TYPE; | |
6007 | break; | |
6008 | } | |
6009 | ||
6010 | if (error) { | |
6011 | return error; | |
6012 | } | |
6013 | } | |
918f2b82 AZ |
6014 | } else { |
6015 | return OFPERR_OFPBRC_BAD_TYPE; | |
6016 | } | |
6017 | ||
6018 | return 0; | |
6019 | } | |
6020 | ||
82c22d34 BP |
6021 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
6022 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
6023 | * buffer owned by the caller. */ | |
918f2b82 | 6024 | struct ofpbuf * |
82c22d34 | 6025 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
6026 | enum ofputil_protocol protocol) |
6027 | { | |
6028 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6029 | struct ofpbuf *b; | |
6030 | ||
6031 | switch (ofp_version) { | |
6032 | case OFP10_VERSION: { | |
6033 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
6034 | "(\'-O OpenFlow11\')"); | |
6035 | break; | |
6036 | } | |
6037 | case OFP11_VERSION: | |
6038 | case OFP12_VERSION: | |
6039 | case OFP13_VERSION: { | |
6040 | struct ofp11_table_mod *otm; | |
2e3fa633 | 6041 | |
918f2b82 AZ |
6042 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
6043 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
6044 | otm->table_id = tm->table_id; |
6045 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 6046 | tm->vacancy, ofp_version); |
918f2b82 AZ |
6047 | break; |
6048 | } | |
42dccab5 | 6049 | case OFP14_VERSION: |
b79d45a1 BP |
6050 | case OFP15_VERSION: |
6051 | case OFP16_VERSION: { | |
37ab26e8 BP |
6052 | struct ofp14_table_mod *otm; |
6053 | ||
6054 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
6055 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
6056 | otm->table_id = tm->table_id; |
6057 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 6058 | tm->vacancy, ofp_version); |
82c22d34 BP |
6059 | |
6060 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 6061 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 6062 | } |
de7d3c07 | 6063 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
6064 | struct ofp14_table_mod_prop_vacancy *otv; |
6065 | ||
6066 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
6067 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
6068 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
6069 | } | |
c37c0382 | 6070 | break; |
37ab26e8 | 6071 | } |
2e3fa633 | 6072 | default: |
428b2edd | 6073 | OVS_NOT_REACHED(); |
9e1fd49b BP |
6074 | } |
6075 | ||
6076 | return b; | |
6077 | } | |
2b07c8b1 | 6078 | \f |
6ea4776b JR |
6079 | /* ofputil_role_request */ |
6080 | ||
6081 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
6082 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
6083 | * OFPERR_* value. */ | |
6084 | enum ofperr | |
6085 | ofputil_decode_role_message(const struct ofp_header *oh, | |
6086 | struct ofputil_role_request *rr) | |
6087 | { | |
0a2869d5 BP |
6088 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6089 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
f4f1ea7e BP |
6090 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
6091 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 6092 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 6093 | |
f4f1ea7e BP |
6094 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6095 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6096 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
6097 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6098 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
6099 | } |
6100 | ||
f4f1ea7e | 6101 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
6102 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
6103 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 6104 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
6105 | rr->have_generation_id = false; |
6106 | rr->generation_id = 0; | |
6107 | } else { | |
6108 | rr->have_generation_id = true; | |
6109 | rr->generation_id = ntohll(orr->generation_id); | |
6110 | } | |
6111 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
6112 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 6113 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
6114 | |
6115 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
6116 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
6117 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
6118 | ||
6119 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
6120 | nrr->role != htonl(NX_ROLE_MASTER) && | |
6121 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
6122 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6123 | } | |
6ea4776b | 6124 | |
f4f1ea7e BP |
6125 | rr->role = ntohl(nrr->role) + 1; |
6126 | rr->have_generation_id = false; | |
6127 | rr->generation_id = 0; | |
6128 | } else { | |
428b2edd | 6129 | OVS_NOT_REACHED(); |
6ea4776b JR |
6130 | } |
6131 | ||
6ea4776b JR |
6132 | return 0; |
6133 | } | |
6134 | ||
6135 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
6136 | * buffer owned by the caller. */ | |
6137 | struct ofpbuf * | |
6138 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 6139 | const struct ofputil_role_request *rr) |
6ea4776b | 6140 | { |
6ea4776b | 6141 | struct ofpbuf *buf; |
6ea4776b JR |
6142 | enum ofpraw raw; |
6143 | ||
f4f1ea7e | 6144 | raw = ofpraw_decode_assert(request); |
6ea4776b | 6145 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 6146 | struct ofp12_role_request *orr; |
6ea4776b | 6147 | |
f4f1ea7e BP |
6148 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
6149 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 6150 | |
147cc9d3 BP |
6151 | orr->role = htonl(rr->role); |
6152 | orr->generation_id = htonll(rr->have_generation_id | |
6153 | ? rr->generation_id | |
6154 | : UINT64_MAX); | |
f4f1ea7e BP |
6155 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
6156 | struct nx_role_request *nrr; | |
6157 | ||
6158 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
6159 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
6160 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
6161 | ||
6162 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
6163 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
6164 | nrr->role = htonl(rr->role - 1); | |
6165 | } else { | |
428b2edd | 6166 | OVS_NOT_REACHED(); |
6ea4776b | 6167 | } |
6ea4776b JR |
6168 | |
6169 | return buf; | |
6170 | } | |
6171 | \f | |
6751a4b4 BP |
6172 | /* Encodes "role status" message 'status' for sending in the given |
6173 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
6174 | * otherwise a null pointer. */ | |
00467f73 AC |
6175 | struct ofpbuf * |
6176 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
6177 | enum ofputil_protocol protocol) | |
6178 | { | |
00467f73 | 6179 | enum ofp_version version; |
00467f73 AC |
6180 | |
6181 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
6182 | if (version >= OFP14_VERSION) { |
6183 | struct ofp14_role_status *rstatus; | |
6184 | struct ofpbuf *buf; | |
6185 | ||
6186 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
6187 | 0); | |
6188 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
6189 | rstatus->role = htonl(status->role); | |
6190 | rstatus->reason = status->reason; | |
6191 | rstatus->generation_id = htonll(status->generation_id); | |
6192 | ||
6193 | return buf; | |
6194 | } else { | |
6195 | return NULL; | |
6196 | } | |
00467f73 AC |
6197 | } |
6198 | ||
6199 | enum ofperr | |
6200 | ofputil_decode_role_status(const struct ofp_header *oh, | |
6201 | struct ofputil_role_status *rs) | |
6202 | { | |
0a2869d5 BP |
6203 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6204 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
00467f73 AC |
6205 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); |
6206 | ||
0a2869d5 | 6207 | const struct ofp14_role_status *r = b.msg; |
00467f73 AC |
6208 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6209 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6210 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
6211 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6212 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6213 | } | |
6214 | ||
6215 | rs->role = ntohl(r->role); | |
6216 | rs->generation_id = ntohll(r->generation_id); | |
6217 | rs->reason = r->reason; | |
6218 | ||
6219 | return 0; | |
6220 | } | |
6221 | ||
3c35db62 NR |
6222 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
6223 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
6224 | struct ofpbuf * | |
6225 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
6226 | enum ofputil_protocol protocol) | |
6227 | { | |
6228 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6229 | struct ofpbuf *inner; | |
6230 | ||
6231 | switch (rf->reason) { | |
6232 | case OFPRFR_GROUP_MOD: | |
6233 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
6234 | break; | |
6235 | ||
6236 | case OFPRFR_METER_MOD: | |
6237 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
6238 | break; | |
6239 | ||
d18cc1ee | 6240 | case OFPRFR_N_REASONS: |
3c35db62 NR |
6241 | default: |
6242 | OVS_NOT_REACHED(); | |
6243 | } | |
6244 | ||
6245 | struct ofp_header *inner_oh = inner->data; | |
6246 | inner_oh->xid = rf->xid; | |
6247 | inner_oh->length = htons(inner->size); | |
6248 | ||
6249 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
6250 | ofp_version, htonl(0), | |
6251 | inner->size); | |
6252 | ofpbuf_put(outer, inner->data, inner->size); | |
6253 | ofpbuf_delete(inner); | |
6254 | ||
6255 | return outer; | |
6256 | } | |
6257 | ||
6258 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
6259 | * form into '*rf' and returns 0, and the caller is later responsible for | |
6260 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
6261 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
6262 | enum ofperr | |
6263 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
6264 | struct ofputil_requestforward *rf) | |
6265 | { | |
0a2869d5 | 6266 | struct ofpbuf b = ofpbuf_const_initializer(outer, ntohs(outer->length)); |
3c35db62 NR |
6267 | |
6268 | /* Skip past outer message. */ | |
6269 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
6270 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
6271 | ||
6272 | /* Validate inner message. */ | |
6273 | if (b.size < sizeof(struct ofp_header)) { | |
6274 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6275 | } | |
6276 | const struct ofp_header *inner = b.data; | |
6277 | unsigned int inner_len = ntohs(inner->length); | |
6278 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
6279 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6280 | } | |
6281 | if (inner->version != outer->version) { | |
6282 | return OFPERR_OFPBRC_BAD_VERSION; | |
6283 | } | |
6284 | ||
6285 | /* Parse inner message. */ | |
6286 | enum ofptype type; | |
0a2869d5 | 6287 | enum ofperr error = ofptype_decode(&type, inner); |
3c35db62 NR |
6288 | if (error) { |
6289 | return error; | |
6290 | } | |
6291 | ||
6292 | rf->xid = inner->xid; | |
6293 | if (type == OFPTYPE_GROUP_MOD) { | |
6294 | rf->reason = OFPRFR_GROUP_MOD; | |
6295 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
6296 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
6297 | if (error) { | |
6298 | free(rf->group_mod); | |
6299 | return error; | |
6300 | } | |
6301 | } else if (type == OFPTYPE_METER_MOD) { | |
6302 | rf->reason = OFPRFR_METER_MOD; | |
6303 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
6304 | ofpbuf_init(&rf->bands, 64); | |
6305 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
6306 | if (error) { | |
6307 | free(rf->meter_mod); | |
6308 | ofpbuf_uninit(&rf->bands); | |
6309 | return error; | |
6310 | } | |
6311 | } else { | |
6312 | return OFPERR_OFPBFC_MSG_UNSUP; | |
6313 | } | |
6314 | ||
6315 | return 0; | |
6316 | } | |
6317 | ||
6318 | /* Frees the content of 'rf', which should have been initialized through a | |
6319 | * successful call to ofputil_decode_requestforward(). */ | |
6320 | void | |
6321 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
6322 | { | |
6323 | if (!rf) { | |
6324 | return; | |
6325 | } | |
6326 | ||
6327 | switch (rf->reason) { | |
6328 | case OFPRFR_GROUP_MOD: | |
6329 | ofputil_uninit_group_mod(rf->group_mod); | |
6330 | free(rf->group_mod); | |
6331 | break; | |
6332 | ||
6333 | case OFPRFR_METER_MOD: | |
6334 | ofpbuf_uninit(&rf->bands); | |
6335 | free(rf->meter_mod); | |
d18cc1ee AA |
6336 | break; |
6337 | ||
6338 | case OFPRFR_N_REASONS: | |
6339 | OVS_NOT_REACHED(); | |
3c35db62 NR |
6340 | } |
6341 | } | |
6342 | ||
307975da SH |
6343 | /* Table stats. */ |
6344 | ||
3c1bb396 BP |
6345 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
6346 | * matched and a field that must be wildcarded. This function returns a bitmap | |
6347 | * that contains both kinds of fields. */ | |
6348 | static struct mf_bitmap | |
6349 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
6350 | { | |
6351 | struct mf_bitmap wc = features->match; | |
6352 | bitmap_not(wc.bm, MFF_N_IDS); | |
6353 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
6354 | return wc; | |
6355 | } | |
6356 | ||
6357 | struct ofp10_wc_map { | |
6358 | enum ofp10_flow_wildcards wc10; | |
6359 | enum mf_field_id mf; | |
6360 | }; | |
6361 | ||
6362 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
6363 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
6364 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
6365 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
6366 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
6367 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
6368 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
6369 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
6370 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
6371 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
6372 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
6373 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6374 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
6375 | }; | |
6376 | ||
6377 | static ovs_be32 | |
6378 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
6379 | { | |
6380 | const struct ofp10_wc_map *p; | |
6381 | uint32_t wc10 = 0; | |
6382 | ||
6383 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6384 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6385 | wc10 |= p->wc10; | |
6386 | } | |
6387 | } | |
6388 | return htonl(wc10); | |
6389 | } | |
6390 | ||
6391 | static struct mf_bitmap | |
6392 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
6393 | { | |
6394 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6395 | const struct ofp10_wc_map *p; | |
6396 | uint32_t wc10 = ntohl(wc10_); | |
6397 | ||
6398 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6399 | if (wc10 & p->wc10) { | |
6400 | bitmap_set1(fields.bm, p->mf); | |
6401 | } | |
6402 | } | |
6403 | return fields; | |
6404 | } | |
6405 | ||
307975da | 6406 | static void |
3c1bb396 BP |
6407 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
6408 | const struct ofputil_table_features *features, | |
307975da SH |
6409 | struct ofpbuf *buf) |
6410 | { | |
3c1bb396 | 6411 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 6412 | struct ofp10_table_stats *out; |
307975da | 6413 | |
3bdc692b | 6414 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6415 | out->table_id = features->table_id; |
f9ac0f03 | 6416 | ovs_strlcpy_arrays(out->name, features->name); |
3c1bb396 BP |
6417 | out->wildcards = mf_bitmap_to_of10(&wc); |
6418 | out->max_entries = htonl(features->max_entries); | |
6419 | out->active_count = htonl(stats->active_count); | |
6420 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
6421 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
6422 | } | |
6423 | ||
6424 | struct ofp11_wc_map { | |
6425 | enum ofp11_flow_match_fields wc11; | |
6426 | enum mf_field_id mf; | |
6427 | }; | |
6428 | ||
6429 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
6430 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
6431 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
6432 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6433 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
6434 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
6435 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
6436 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
6437 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
6438 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
6439 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
6440 | /* I don't know what OFPFMF11_TYPE means. */ | |
6441 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
6442 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
6443 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
6444 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
6445 | { OFPFMF11_METADATA, MFF_METADATA }, | |
6446 | }; | |
6447 | ||
6448 | static ovs_be32 | |
6449 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
6450 | { | |
6451 | const struct ofp11_wc_map *p; | |
6452 | uint32_t wc11 = 0; | |
6453 | ||
6454 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6455 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6456 | wc11 |= p->wc11; | |
307975da SH |
6457 | } |
6458 | } | |
3c1bb396 | 6459 | return htonl(wc11); |
307975da SH |
6460 | } |
6461 | ||
3c1bb396 BP |
6462 | static struct mf_bitmap |
6463 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
6464 | { | |
6465 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6466 | const struct ofp11_wc_map *p; | |
6467 | uint32_t wc11 = ntohl(wc11_); | |
6468 | ||
6469 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6470 | if (wc11 & p->wc11) { | |
6471 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
6472 | } |
6473 | } | |
3c1bb396 | 6474 | return fields; |
307975da SH |
6475 | } |
6476 | ||
6477 | static void | |
3c1bb396 BP |
6478 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
6479 | const struct ofputil_table_features *features, | |
307975da SH |
6480 | struct ofpbuf *buf) |
6481 | { | |
3c1bb396 | 6482 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
6483 | struct ofp11_table_stats *out; |
6484 | ||
3bdc692b | 6485 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6486 | out->table_id = features->table_id; |
f9ac0f03 | 6487 | ovs_strlcpy_arrays(out->name, features->name); |
3c1bb396 BP |
6488 | out->wildcards = mf_bitmap_to_of11(&wc); |
6489 | out->match = mf_bitmap_to_of11(&features->match); | |
6490 | out->instructions = ovsinst_bitmap_to_openflow( | |
6491 | features->nonmiss.instructions, OFP11_VERSION); | |
6492 | out->write_actions = ofpact_bitmap_to_openflow( | |
6493 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
6494 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6495 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
6496 | out->config = htonl(features->miss_config); | |
6497 | out->max_entries = htonl(features->max_entries); | |
6498 | out->active_count = htonl(stats->active_count); | |
6499 | out->lookup_count = htonll(stats->lookup_count); | |
6500 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
6501 | } |
6502 | ||
6240624b | 6503 | static void |
3c1bb396 BP |
6504 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
6505 | const struct ofputil_table_features *features, | |
6240624b BP |
6506 | struct ofpbuf *buf) |
6507 | { | |
08d1e234 | 6508 | struct ofp12_table_stats *out; |
6240624b | 6509 | |
08d1e234 | 6510 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 | 6511 | out->table_id = features->table_id; |
f9ac0f03 | 6512 | ovs_strlcpy_arrays(out->name, features->name); |
178742f9 BP |
6513 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
6514 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
6515 | OFP12_VERSION); |
6516 | out->write_actions = ofpact_bitmap_to_openflow( | |
6517 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
6518 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6519 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 6520 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 6521 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 6522 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
6523 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
6524 | out->metadata_match = features->metadata_match; | |
6525 | out->metadata_write = features->metadata_write; | |
6526 | out->instructions = ovsinst_bitmap_to_openflow( | |
6527 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
6528 | out->config = ofputil_encode_table_config(features->miss_config, |
6529 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 6530 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 6531 | OFP12_VERSION); |
3c1bb396 BP |
6532 | out->max_entries = htonl(features->max_entries); |
6533 | out->active_count = htonl(stats->active_count); | |
6534 | out->lookup_count = htonll(stats->lookup_count); | |
6535 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
6536 | } |
6537 | ||
2e1ae200 | 6538 | static void |
3c1bb396 | 6539 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
6540 | struct ofpbuf *buf) |
6541 | { | |
6542 | struct ofp13_table_stats *out; | |
6543 | ||
3c1bb396 BP |
6544 | out = ofpbuf_put_zeros(buf, sizeof *out); |
6545 | out->table_id = stats->table_id; | |
6546 | out->active_count = htonl(stats->active_count); | |
6547 | out->lookup_count = htonll(stats->lookup_count); | |
6548 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
6549 | } |
6550 | ||
307975da | 6551 | struct ofpbuf * |
3c1bb396 | 6552 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 6553 | { |
3c1bb396 BP |
6554 | return ofpraw_alloc_stats_reply(request, 0); |
6555 | } | |
307975da | 6556 | |
3c1bb396 BP |
6557 | void |
6558 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
6559 | const struct ofputil_table_stats *stats, | |
6560 | const struct ofputil_table_features *features) | |
6561 | { | |
6fd6ed71 | 6562 | struct ofp_header *oh = reply->header; |
307975da | 6563 | |
3c1bb396 | 6564 | ovs_assert(stats->table_id == features->table_id); |
307975da | 6565 | |
3c1bb396 BP |
6566 | switch ((enum ofp_version) oh->version) { |
6567 | case OFP10_VERSION: | |
6568 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
6569 | break; | |
307975da | 6570 | |
3c1bb396 BP |
6571 | case OFP11_VERSION: |
6572 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
6573 | break; | |
307975da | 6574 | |
3c1bb396 BP |
6575 | case OFP12_VERSION: |
6576 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
6577 | break; | |
2e1ae200 | 6578 | |
3c1bb396 BP |
6579 | case OFP13_VERSION: |
6580 | case OFP14_VERSION: | |
6581 | case OFP15_VERSION: | |
b79d45a1 | 6582 | case OFP16_VERSION: |
3c1bb396 BP |
6583 | ofputil_put_ofp13_table_stats(stats, reply); |
6584 | break; | |
6585 | ||
6586 | default: | |
6587 | OVS_NOT_REACHED(); | |
307975da | 6588 | } |
3c1bb396 | 6589 | } |
307975da | 6590 | |
3c1bb396 BP |
6591 | static int |
6592 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
6593 | struct ofputil_table_stats *stats, | |
6594 | struct ofputil_table_features *features) | |
6595 | { | |
6596 | struct ofp10_table_stats *ots; | |
6597 | ||
6598 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6599 | if (!ots) { | |
6600 | return OFPERR_OFPBRC_BAD_LEN; | |
6601 | } | |
6602 | ||
6603 | features->table_id = ots->table_id; | |
f9ac0f03 | 6604 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6605 | features->max_entries = ntohl(ots->max_entries); |
6606 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6607 | ||
6608 | stats->table_id = ots->table_id; | |
6609 | stats->active_count = ntohl(ots->active_count); | |
6610 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6611 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6612 | ||
6613 | return 0; | |
6614 | } | |
6615 | ||
6616 | static int | |
6617 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6618 | struct ofputil_table_stats *stats, | |
6619 | struct ofputil_table_features *features) | |
6620 | { | |
6621 | struct ofp11_table_stats *ots; | |
6622 | ||
6623 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6624 | if (!ots) { | |
6625 | return OFPERR_OFPBRC_BAD_LEN; | |
6626 | } | |
6627 | ||
6628 | features->table_id = ots->table_id; | |
f9ac0f03 | 6629 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6630 | features->max_entries = ntohl(ots->max_entries); |
6631 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6632 | ots->instructions, OFP11_VERSION); | |
6633 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6634 | ots->write_actions, OFP11_VERSION); | |
6635 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6636 | ots->write_actions, OFP11_VERSION); | |
6637 | features->miss = features->nonmiss; | |
82c22d34 BP |
6638 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6639 | OFP11_VERSION); | |
3c1bb396 BP |
6640 | features->match = mf_bitmap_from_of11(ots->match); |
6641 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6642 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6643 | ||
6644 | stats->table_id = ots->table_id; | |
6645 | stats->active_count = ntohl(ots->active_count); | |
6646 | stats->lookup_count = ntohll(ots->lookup_count); | |
6647 | stats->matched_count = ntohll(ots->matched_count); | |
6648 | ||
6649 | return 0; | |
6650 | } | |
6651 | ||
6652 | static int | |
6653 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6654 | struct ofputil_table_stats *stats, | |
6655 | struct ofputil_table_features *features) | |
6656 | { | |
6657 | struct ofp12_table_stats *ots; | |
6658 | ||
6659 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6660 | if (!ots) { | |
6661 | return OFPERR_OFPBRC_BAD_LEN; | |
6662 | } | |
6663 | ||
6664 | features->table_id = ots->table_id; | |
f9ac0f03 | 6665 | ovs_strlcpy_arrays(features->name, ots->name); |
3c1bb396 BP |
6666 | features->metadata_match = ots->metadata_match; |
6667 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6668 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6669 | OFP12_VERSION); | |
3c1bb396 BP |
6670 | features->max_entries = ntohl(ots->max_entries); |
6671 | ||
6672 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6673 | ots->instructions, OFP12_VERSION); | |
6674 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6675 | ots->write_actions, OFP12_VERSION); | |
6676 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6677 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6678 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6679 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6680 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6681 | ots->apply_setfields, OFP12_VERSION); |
6682 | features->miss = features->nonmiss; | |
6683 | ||
178742f9 BP |
6684 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6685 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6686 | OFP12_VERSION); | |
3c1bb396 BP |
6687 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6688 | ||
6689 | stats->table_id = ots->table_id; | |
6690 | stats->active_count = ntohl(ots->active_count); | |
6691 | stats->lookup_count = ntohll(ots->lookup_count); | |
6692 | stats->matched_count = ntohll(ots->matched_count); | |
6693 | ||
6694 | return 0; | |
6695 | } | |
6696 | ||
6697 | static int | |
6698 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6699 | struct ofputil_table_stats *stats, | |
6700 | struct ofputil_table_features *features) | |
6701 | { | |
6702 | struct ofp13_table_stats *ots; | |
6703 | ||
6704 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6705 | if (!ots) { | |
6706 | return OFPERR_OFPBRC_BAD_LEN; | |
6707 | } | |
6708 | ||
6709 | features->table_id = ots->table_id; | |
6710 | ||
6711 | stats->table_id = ots->table_id; | |
6712 | stats->active_count = ntohl(ots->active_count); | |
6713 | stats->lookup_count = ntohll(ots->lookup_count); | |
6714 | stats->matched_count = ntohll(ots->matched_count); | |
6715 | ||
6716 | return 0; | |
6717 | } | |
6718 | ||
6719 | int | |
6720 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6721 | struct ofputil_table_stats *stats, | |
6722 | struct ofputil_table_features *features) | |
6723 | { | |
6724 | const struct ofp_header *oh; | |
6725 | ||
6fd6ed71 | 6726 | if (!msg->header) { |
3c1bb396 BP |
6727 | ofpraw_pull_assert(msg); |
6728 | } | |
6fd6ed71 | 6729 | oh = msg->header; |
3c1bb396 | 6730 | |
6fd6ed71 | 6731 | if (!msg->size) { |
3c1bb396 BP |
6732 | return EOF; |
6733 | } | |
6734 | ||
6735 | memset(stats, 0, sizeof *stats); | |
6736 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6737 | features->supports_eviction = -1; |
6738 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6739 | |
6740 | switch ((enum ofp_version) oh->version) { | |
6741 | case OFP10_VERSION: | |
6742 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6743 | ||
6744 | case OFP11_VERSION: | |
6745 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6746 | ||
6747 | case OFP12_VERSION: | |
6748 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6749 | ||
6750 | case OFP13_VERSION: | |
6751 | case OFP14_VERSION: | |
6752 | case OFP15_VERSION: | |
b79d45a1 | 6753 | case OFP16_VERSION: |
3c1bb396 BP |
6754 | return ofputil_decode_ofp13_table_stats(msg, stats, features); |
6755 | ||
6756 | default: | |
6757 | OVS_NOT_REACHED(); | |
6758 | } | |
307975da SH |
6759 | } |
6760 | \f | |
2b07c8b1 BP |
6761 | /* ofputil_flow_monitor_request */ |
6762 | ||
6763 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6764 | * ofputil_flow_monitor_request in 'rq'. | |
6765 | * | |
6766 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6767 | * message. Calling this function multiple times for a single 'msg' iterates | |
6768 | * through the requests. The caller must initially leave 'msg''s layer | |
6769 | * pointers null and not modify them between calls. | |
6770 | * | |
6771 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6772 | * otherwise an OFPERR_* value. */ | |
6773 | int | |
6774 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6775 | struct ofpbuf *msg) | |
6776 | { | |
6777 | struct nx_flow_monitor_request *nfmr; | |
6778 | uint16_t flags; | |
6779 | ||
6fd6ed71 | 6780 | if (!msg->header) { |
982697a4 | 6781 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6782 | } |
6783 | ||
6fd6ed71 | 6784 | if (!msg->size) { |
2b07c8b1 BP |
6785 | return EOF; |
6786 | } | |
6787 | ||
6788 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6789 | if (!nfmr) { | |
437d0d22 | 6790 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6791 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6792 | return OFPERR_OFPBRC_BAD_LEN; |
6793 | } | |
6794 | ||
6795 | flags = ntohs(nfmr->flags); | |
6796 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6797 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6798 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6799 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6800 | flags); | |
04f9f286 | 6801 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6802 | } |
6803 | ||
6804 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6805 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6806 | } | |
6807 | ||
6808 | rq->id = ntohl(nfmr->id); | |
6809 | rq->flags = flags; | |
4e022ec0 | 6810 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6811 | rq->table_id = nfmr->table_id; |
6812 | ||
8d8ab6c2 | 6813 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, |
3cddeff0 | 6814 | NULL, NULL, NULL); |
2b07c8b1 BP |
6815 | } |
6816 | ||
6817 | void | |
6818 | ofputil_append_flow_monitor_request( | |
6819 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6820 | { | |
6821 | struct nx_flow_monitor_request *nfmr; | |
6822 | size_t start_ofs; | |
6823 | int match_len; | |
6824 | ||
6fd6ed71 | 6825 | if (!msg->size) { |
982697a4 | 6826 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6827 | } |
6828 | ||
6fd6ed71 | 6829 | start_ofs = msg->size; |
2b07c8b1 | 6830 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6831 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6832 | |
6833 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6834 | nfmr->id = htonl(rq->id); | |
6835 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6836 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6837 | nfmr->match_len = htons(match_len); |
6838 | nfmr->table_id = rq->table_id; | |
6839 | } | |
6840 | ||
6841 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6842 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6843 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6844 | * |
6845 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6846 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6847 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6848 | * will point into the 'ofpacts' buffer. | |
6849 | * | |
6850 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6851 | * this function multiple times for a single 'msg' iterates through the | |
6852 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6853 | * not modify them between calls. | |
6854 | * | |
6855 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6856 | * otherwise an OFPERR_* value. */ | |
6857 | int | |
6858 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6859 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6860 | { | |
6861 | struct nx_flow_update_header *nfuh; | |
6862 | unsigned int length; | |
e3f8f887 | 6863 | struct ofp_header *oh; |
2b07c8b1 | 6864 | |
6fd6ed71 | 6865 | if (!msg->header) { |
982697a4 | 6866 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6867 | } |
6868 | ||
9abca1e5 | 6869 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6870 | if (!msg->size) { |
2b07c8b1 BP |
6871 | return EOF; |
6872 | } | |
6873 | ||
6fd6ed71 | 6874 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6875 | goto bad_len; |
6876 | } | |
6877 | ||
6fd6ed71 | 6878 | oh = msg->header; |
e3f8f887 | 6879 | |
6fd6ed71 | 6880 | nfuh = msg->data; |
2b07c8b1 BP |
6881 | update->event = ntohs(nfuh->event); |
6882 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6883 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6884 | goto bad_len; |
6885 | } | |
6886 | ||
6887 | if (update->event == NXFME_ABBREV) { | |
6888 | struct nx_flow_update_abbrev *nfua; | |
6889 | ||
6890 | if (length != sizeof *nfua) { | |
6891 | goto bad_len; | |
6892 | } | |
6893 | ||
6894 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6895 | update->xid = nfua->xid; | |
6896 | return 0; | |
6897 | } else if (update->event == NXFME_ADDED | |
6898 | || update->event == NXFME_DELETED | |
6899 | || update->event == NXFME_MODIFIED) { | |
6900 | struct nx_flow_update_full *nfuf; | |
6901 | unsigned int actions_len; | |
6902 | unsigned int match_len; | |
6903 | enum ofperr error; | |
6904 | ||
6905 | if (length < sizeof *nfuf) { | |
6906 | goto bad_len; | |
6907 | } | |
6908 | ||
6909 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6910 | match_len = ntohs(nfuf->match_len); | |
6911 | if (sizeof *nfuf + match_len > length) { | |
6912 | goto bad_len; | |
6913 | } | |
6914 | ||
6915 | update->reason = ntohs(nfuf->reason); | |
6916 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6917 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6918 | update->table_id = nfuf->table_id; | |
6919 | update->cookie = nfuf->cookie; | |
81a76618 | 6920 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6921 | |
3cddeff0 YHW |
6922 | error = nx_pull_match(msg, match_len, &update->match, NULL, NULL, NULL, |
6923 | NULL); | |
2b07c8b1 BP |
6924 | if (error) { |
6925 | return error; | |
6926 | } | |
6927 | ||
6928 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 | 6929 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5c7c16d8 | 6930 | NULL, NULL, ofpacts); |
2b07c8b1 BP |
6931 | if (error) { |
6932 | return error; | |
6933 | } | |
6934 | ||
6fd6ed71 PS |
6935 | update->ofpacts = ofpacts->data; |
6936 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6937 | return 0; |
6938 | } else { | |
6939 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6940 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6941 | ntohs(nfuh->event)); | |
15549878 | 6942 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6943 | } |
6944 | ||
6945 | bad_len: | |
437d0d22 | 6946 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6947 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6948 | return OFPERR_OFPBRC_BAD_LEN; |
6949 | } | |
6950 | ||
6951 | uint32_t | |
6952 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6953 | { | |
982697a4 BP |
6954 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6955 | ||
6956 | return ntohl(cancel->id); | |
2b07c8b1 | 6957 | } |
9e1fd49b | 6958 | |
2b07c8b1 BP |
6959 | struct ofpbuf * |
6960 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6961 | { | |
6962 | struct nx_flow_monitor_cancel *nfmc; | |
6963 | struct ofpbuf *msg; | |
6964 | ||
982697a4 BP |
6965 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6966 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6967 | nfmc->id = htonl(id); |
6968 | return msg; | |
6969 | } | |
6970 | ||
6971 | void | |
ca6ba700 | 6972 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6973 | { |
6974 | struct ofpbuf *msg; | |
6975 | ||
982697a4 BP |
6976 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6977 | htonl(0), 1024); | |
2b07c8b1 | 6978 | |
417e7e66 BW |
6979 | ovs_list_init(replies); |
6980 | ovs_list_push_back(replies, &msg->list_node); | |
2b07c8b1 BP |
6981 | } |
6982 | ||
6983 | void | |
6984 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
140f36ba DDP |
6985 | struct ovs_list *replies, |
6986 | const struct tun_table *tun_table) | |
2b07c8b1 | 6987 | { |
140f36ba DDP |
6988 | struct ofputil_flow_update *update_ = |
6989 | CONST_CAST(struct ofputil_flow_update *, update); | |
6990 | const struct tun_table *orig_tun_table; | |
e28ac5cf | 6991 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6992 | struct nx_flow_update_header *nfuh; |
6993 | struct ofpbuf *msg; | |
6994 | size_t start_ofs; | |
6995 | ||
140f36ba DDP |
6996 | orig_tun_table = update->match.flow.tunnel.metadata.tab; |
6997 | update_->match.flow.tunnel.metadata.tab = tun_table; | |
6998 | ||
417e7e66 | 6999 | msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 7000 | start_ofs = msg->size; |
2b07c8b1 BP |
7001 | |
7002 | if (update->event == NXFME_ABBREV) { | |
7003 | struct nx_flow_update_abbrev *nfua; | |
7004 | ||
7005 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
7006 | nfua->xid = update->xid; | |
7007 | } else { | |
7008 | struct nx_flow_update_full *nfuf; | |
7009 | int match_len; | |
7010 | ||
7011 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
140f36ba | 7012 | match_len = nx_put_match(msg, &update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
7013 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
7014 | version); | |
2b07c8b1 BP |
7015 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
7016 | nfuf->reason = htons(update->reason); | |
81a76618 | 7017 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
7018 | nfuf->idle_timeout = htons(update->idle_timeout); |
7019 | nfuf->hard_timeout = htons(update->hard_timeout); | |
7020 | nfuf->match_len = htons(match_len); | |
7021 | nfuf->table_id = update->table_id; | |
7022 | nfuf->cookie = update->cookie; | |
7023 | } | |
7024 | ||
7025 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 7026 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
7027 | nfuh->event = htons(update->event); |
7028 | ||
982697a4 | 7029 | ofpmp_postappend(replies, start_ofs); |
140f36ba | 7030 | update_->match.flow.tunnel.metadata.tab = orig_tun_table; |
2b07c8b1 BP |
7031 | } |
7032 | \f | |
c6a93eb7 | 7033 | struct ofpbuf * |
de0f3156 SH |
7034 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
7035 | enum ofputil_protocol protocol) | |
c6a93eb7 | 7036 | { |
de0f3156 | 7037 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
7038 | struct ofpbuf *msg; |
7039 | size_t size; | |
7040 | ||
982697a4 | 7041 | size = po->ofpacts_len; |
c6a93eb7 BP |
7042 | if (po->buffer_id == UINT32_MAX) { |
7043 | size += po->packet_len; | |
7044 | } | |
7045 | ||
de0f3156 SH |
7046 | switch (ofp_version) { |
7047 | case OFP10_VERSION: { | |
31a9e63f | 7048 | struct ofp10_packet_out *opo; |
de0f3156 SH |
7049 | size_t actions_ofs; |
7050 | ||
7051 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
7052 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 7053 | actions_ofs = msg->size; |
e3f8f887 JR |
7054 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
7055 | ofp_version); | |
de0f3156 | 7056 | |
6fd6ed71 | 7057 | opo = msg->msg; |
de0f3156 | 7058 | opo->buffer_id = htonl(po->buffer_id); |
35eb6326 YHW |
7059 | opo->in_port =htons(ofp_to_u16( |
7060 | po->flow_metadata.flow.in_port.ofp_port)); | |
6fd6ed71 | 7061 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
7062 | break; |
7063 | } | |
f25d0cf3 | 7064 | |
de0f3156 | 7065 | case OFP11_VERSION: |
2e1ae200 | 7066 | case OFP12_VERSION: |
c37c0382 | 7067 | case OFP13_VERSION: |
42dccab5 | 7068 | case OFP14_VERSION: |
b79d45a1 BP |
7069 | case OFP15_VERSION: |
7070 | case OFP16_VERSION: { | |
7c1b1a0d SH |
7071 | struct ofp11_packet_out *opo; |
7072 | size_t len; | |
7073 | ||
7074 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
7075 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
7076 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
7077 | ofp_version); | |
6fd6ed71 | 7078 | opo = msg->msg; |
7c1b1a0d | 7079 | opo->buffer_id = htonl(po->buffer_id); |
35eb6326 YHW |
7080 | opo->in_port = |
7081 | ofputil_port_to_ofp11(po->flow_metadata.flow.in_port.ofp_port); | |
7c1b1a0d SH |
7082 | opo->actions_len = htons(len); |
7083 | break; | |
7084 | } | |
7085 | ||
de0f3156 | 7086 | default: |
428b2edd | 7087 | OVS_NOT_REACHED(); |
de0f3156 | 7088 | } |
f25d0cf3 | 7089 | |
c6a93eb7 BP |
7090 | if (po->buffer_id == UINT32_MAX) { |
7091 | ofpbuf_put(msg, po->packet, po->packet_len); | |
7092 | } | |
f25d0cf3 | 7093 | |
982697a4 | 7094 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
7095 | |
7096 | return msg; | |
7097 | } | |
d1e2cf21 | 7098 | \f |
fa37b408 BP |
7099 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
7100 | struct ofpbuf * | |
1a126c0c | 7101 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 7102 | { |
1a126c0c | 7103 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 7104 | htonl(0), 0); |
fa37b408 BP |
7105 | } |
7106 | ||
7107 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
7108 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
7109 | struct ofpbuf * | |
7110 | make_echo_reply(const struct ofp_header *rq) | |
7111 | { | |
0a2869d5 | 7112 | struct ofpbuf rq_buf = ofpbuf_const_initializer(rq, ntohs(rq->length)); |
982697a4 BP |
7113 | ofpraw_pull_assert(&rq_buf); |
7114 | ||
0a2869d5 BP |
7115 | struct ofpbuf *reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, |
7116 | rq, rq_buf.size); | |
6fd6ed71 | 7117 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); |
982697a4 | 7118 | return reply; |
fa37b408 BP |
7119 | } |
7120 | ||
efb80167 | 7121 | struct ofpbuf * |
a0ae0b6e | 7122 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 7123 | { |
a0ae0b6e SH |
7124 | enum ofpraw type; |
7125 | ||
7126 | switch (ofp_version) { | |
b79d45a1 | 7127 | case OFP16_VERSION: |
42dccab5 | 7128 | case OFP15_VERSION: |
c37c0382 | 7129 | case OFP14_VERSION: |
2e1ae200 | 7130 | case OFP13_VERSION: |
a0ae0b6e SH |
7131 | case OFP12_VERSION: |
7132 | case OFP11_VERSION: | |
7133 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
7134 | break; | |
7135 | ||
7136 | case OFP10_VERSION: | |
7137 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
7138 | break; | |
7139 | ||
7140 | default: | |
428b2edd | 7141 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
7142 | } |
7143 | ||
7144 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
7145 | } |
7146 | ||
7257b535 | 7147 | const char * |
ad99e2ed | 7148 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 7149 | { |
ad99e2ed BP |
7150 | switch (frag) { |
7151 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
7152 | case OFPUTIL_FRAG_DROP: return "drop"; | |
7153 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
7154 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
7155 | } |
7156 | ||
428b2edd | 7157 | OVS_NOT_REACHED(); |
7257b535 BP |
7158 | } |
7159 | ||
7160 | bool | |
ad99e2ed BP |
7161 | ofputil_frag_handling_from_string(const char *s, |
7162 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
7163 | { |
7164 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 7165 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 7166 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 7167 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 7168 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 7169 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 7170 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 7171 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
7172 | } else { |
7173 | return false; | |
7174 | } | |
7175 | return true; | |
7176 | } | |
7177 | ||
7b7503ea BP |
7178 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
7179 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
7180 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 7181 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
7182 | * |
7183 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7184 | enum ofperr | |
4e022ec0 | 7185 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
7186 | { |
7187 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
7188 | ||
4e022ec0 AW |
7189 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
7190 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 7191 | return 0; |
4e022ec0 AW |
7192 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
7193 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
7194 | return 0; |
7195 | } else { | |
bc146369 | 7196 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
7197 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
7198 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
7199 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
7200 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
7201 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
7202 | } | |
7203 | } | |
7204 | ||
7205 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
7206 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
7207 | * | |
7208 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7209 | ovs_be32 | |
4e022ec0 | 7210 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 7211 | { |
4e022ec0 AW |
7212 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
7213 | ? ofp_to_u16(ofp10_port) | |
7214 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
7215 | } |
7216 | ||
39dc9082 BP |
7217 | #define OFPUTIL_NAMED_PORTS \ |
7218 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
7219 | OFPUTIL_NAMED_PORT(TABLE) \ | |
7220 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
7221 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
7222 | OFPUTIL_NAMED_PORT(ALL) \ | |
7223 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
7224 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
7225 | OFPUTIL_NAMED_PORT(ANY) \ |
7226 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
7227 | |
7228 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
7229 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
7230 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
7231 | OFPUTIL_NAMED_PORT(NONE) |
7232 | ||
8010100b BP |
7233 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
7234 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
7235 | * (e.g. "LOCAL"). | |
c6100d92 | 7236 | * |
8010100b BP |
7237 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
7238 | * or name. The caller should issue an error message in this case, because | |
7239 | * this function usually does not. (This gives the caller an opportunity to | |
7240 | * look up the port name another way, e.g. by contacting the switch and listing | |
7241 | * the names of all its ports). | |
c6100d92 BP |
7242 | * |
7243 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
7244 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
7245 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 7246 | bool |
4e022ec0 | 7247 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 7248 | { |
5b23ff7e | 7249 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 7250 | |
5b23ff7e JR |
7251 | if (*s == '-') { |
7252 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
7253 | return false; | |
7254 | } | |
8010100b | 7255 | *portp = 0; |
c6100d92 | 7256 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
7257 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
7258 | /* Pass. */ | |
7259 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
7260 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
7261 | "be translated to %u when talking to an OF1.1 or " | |
7262 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 7263 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
2f2b904f | 7264 | char name[OFP10_MAX_PORT_NAME_LEN]; |
28b11432 BP |
7265 | |
7266 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
7267 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
7268 | "for compatibility with OpenFlow 1.1 and later", | |
7269 | name, port32); | |
4e022ec0 | 7270 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 7271 | VLOG_WARN("port %u is outside the supported range 0 through " |
fd13c6b5 | 7272 | "%x or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 7273 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 7274 | return false; |
c6100d92 | 7275 | } else { |
4e022ec0 | 7276 | port32 -= OFPP11_OFFSET; |
c6100d92 | 7277 | } |
4e022ec0 AW |
7278 | |
7279 | *portp = u16_to_ofp(port32); | |
7280 | return true; | |
c6100d92 BP |
7281 | } else { |
7282 | struct pair { | |
7283 | const char *name; | |
4e022ec0 | 7284 | ofp_port_t value; |
c6100d92 BP |
7285 | }; |
7286 | static const struct pair pairs[] = { | |
39dc9082 | 7287 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 7288 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 7289 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
7290 | }; |
7291 | const struct pair *p; | |
39dc9082 | 7292 | |
c6100d92 BP |
7293 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
7294 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
7295 | *portp = p->value; |
7296 | return true; | |
c6100d92 | 7297 | } |
39dc9082 | 7298 | } |
8010100b | 7299 | return false; |
39dc9082 | 7300 | } |
39dc9082 BP |
7301 | } |
7302 | ||
7303 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
7304 | * Most ports' string representation is just the port number, but for special | |
7305 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
7306 | void | |
4e022ec0 | 7307 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 7308 | { |
2f2b904f | 7309 | char name[OFP10_MAX_PORT_NAME_LEN]; |
28b11432 BP |
7310 | |
7311 | ofputil_port_to_string(port, name, sizeof name); | |
7312 | ds_put_cstr(s, name); | |
7313 | } | |
39dc9082 | 7314 | |
28b11432 BP |
7315 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
7316 | * representation of OpenFlow port number 'port'. Most ports are represented | |
7317 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
7318 | * by name, e.g. "LOCAL". */ | |
7319 | void | |
7320 | ofputil_port_to_string(ofp_port_t port, | |
2f2b904f | 7321 | char namebuf[OFP10_MAX_PORT_NAME_LEN], size_t bufsize) |
28b11432 | 7322 | { |
39dc9082 | 7323 | switch (port) { |
28b11432 BP |
7324 | #define OFPUTIL_NAMED_PORT(NAME) \ |
7325 | case OFPP_##NAME: \ | |
7326 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
7327 | break; | |
39dc9082 BP |
7328 | OFPUTIL_NAMED_PORTS |
7329 | #undef OFPUTIL_NAMED_PORT | |
7330 | ||
7331 | default: | |
94783c7c | 7332 | snprintf(namebuf, bufsize, "%"PRIu32, port); |
28b11432 | 7333 | break; |
39dc9082 | 7334 | } |
39dc9082 BP |
7335 | } |
7336 | ||
7395c052 NZ |
7337 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
7338 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
7339 | * (either "ANY" or "ALL"). | |
7340 | * | |
7341 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
7342 | * name. */ | |
7343 | bool | |
7344 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
7345 | { | |
7346 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 7347 | *group_idp = OFPG_ANY; |
7395c052 | 7348 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 7349 | *group_idp = OFPG_ALL; |
7395c052 NZ |
7350 | } else if (!str_to_uint(s, 10, group_idp)) { |
7351 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
7352 | "32-bit nonnegative integers or the keywords ANY or " | |
7353 | "ALL.)", s); | |
7354 | return false; | |
7355 | } | |
7356 | ||
7357 | return true; | |
7358 | } | |
7359 | ||
7360 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
7361 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 7362 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
7363 | void |
7364 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
7365 | { | |
7366 | char name[MAX_GROUP_NAME_LEN]; | |
7367 | ||
7368 | ofputil_group_to_string(group_id, name, sizeof name); | |
7369 | ds_put_cstr(s, name); | |
7370 | } | |
7371 | ||
7372 | ||
7373 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
7374 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 7375 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
7376 | * by name, e.g. "ALL". */ |
7377 | void | |
7378 | ofputil_group_to_string(uint32_t group_id, | |
7379 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
7380 | { | |
7381 | switch (group_id) { | |
30ef36c6 | 7382 | case OFPG_ALL: |
7395c052 NZ |
7383 | ovs_strlcpy(namebuf, "ALL", bufsize); |
7384 | break; | |
7385 | ||
30ef36c6 | 7386 | case OFPG_ANY: |
7395c052 NZ |
7387 | ovs_strlcpy(namebuf, "ANY", bufsize); |
7388 | break; | |
7389 | ||
7390 | default: | |
7391 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
7392 | break; | |
7393 | } | |
7394 | } | |
7395 | ||
2be393ed JP |
7396 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
7397 | * 'ofp_version', tries to pull the first element from the array. If | |
7398 | * successful, initializes '*pp' with an abstract representation of the | |
7399 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
7400 | * On an error, returns a positive OFPERR_* value. */ | |
7401 | int | |
2e3fa633 | 7402 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
7403 | struct ofputil_phy_port *pp) |
7404 | { | |
8c3cc785 BP |
7405 | memset(pp, 0, sizeof *pp); |
7406 | ||
2e3fa633 SH |
7407 | switch (ofp_version) { |
7408 | case OFP10_VERSION: { | |
2be393ed JP |
7409 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
7410 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
7411 | } |
7412 | case OFP11_VERSION: | |
2e1ae200 JR |
7413 | case OFP12_VERSION: |
7414 | case OFP13_VERSION: { | |
2be393ed JP |
7415 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
7416 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
7417 | } | |
c37c0382 | 7418 | case OFP14_VERSION: |
42dccab5 | 7419 | case OFP15_VERSION: |
6fd6ed71 | 7420 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2f2b904f BP |
7421 | case OFP16_VERSION: |
7422 | return b->size ? ofputil_pull_ofp16_port(pp, b) : EOF; | |
2e3fa633 | 7423 | default: |
428b2edd | 7424 | OVS_NOT_REACHED(); |
2e3fa633 | 7425 | } |
2be393ed JP |
7426 | } |
7427 | ||
3cbd9931 | 7428 | static void |
81a76618 | 7429 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
7430 | { |
7431 | enum { | |
7432 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
7433 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
7434 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 7435 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
7436 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
7437 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 7438 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
7439 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
7440 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
7441 | } may_match; |
7442 | ||
7443 | struct flow_wildcards wc; | |
7444 | ||
7445 | /* Figure out what fields may be matched. */ | |
81a76618 | 7446 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 7447 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
7448 | if (match->flow.nw_proto == IPPROTO_TCP || |
7449 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 7450 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 7451 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
7452 | may_match |= MAY_TP_ADDR; |
7453 | } | |
81a76618 | 7454 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 7455 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 7456 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
7457 | match->flow.nw_proto == IPPROTO_UDP || |
7458 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 7459 | may_match |= MAY_TP_ADDR; |
81a76618 | 7460 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 7461 | may_match |= MAY_TP_ADDR; |
81a76618 | 7462 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 7463 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 7464 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
7465 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
7466 | } | |
7467 | } | |
8087f5ff MM |
7468 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
7469 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 7470 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
7471 | } else if (eth_type_mpls(match->flow.dl_type)) { |
7472 | may_match = MAY_MPLS; | |
1c0b7503 | 7473 | } else { |
b459a924 BP |
7474 | may_match = 0; |
7475 | } | |
7476 | ||
7477 | /* Clear the fields that may not be matched. */ | |
81a76618 | 7478 | wc = match->wc; |
b459a924 | 7479 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 7480 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
7481 | } |
7482 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 7483 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
7484 | } |
7485 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 7486 | wc.masks.nw_proto = 0; |
b459a924 | 7487 | } |
9e44d715 | 7488 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
7489 | wc.masks.nw_tos = 0; |
7490 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
7491 | } |
7492 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 7493 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
7494 | } |
7495 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 7496 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 7497 | } |
d78477ec | 7498 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
7499 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
7500 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
7501 | } |
7502 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 7503 | wc.masks.nd_target = in6addr_any; |
b459a924 | 7504 | } |
b02475c5 | 7505 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 7506 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 7507 | } |
b459a924 BP |
7508 | |
7509 | /* Log any changes. */ | |
81a76618 | 7510 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 7511 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 7512 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 7513 | |
81a76618 BP |
7514 | match->wc = wc; |
7515 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
7516 | |
7517 | if (log) { | |
81a76618 | 7518 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
7519 | VLOG_INFO("normalization changed ofp_match, details:"); |
7520 | VLOG_INFO(" pre: %s", pre); | |
7521 | VLOG_INFO("post: %s", post); | |
7522 | free(pre); | |
7523 | free(post); | |
7524 | } | |
fa37b408 | 7525 | } |
3f09c339 | 7526 | } |
26c112c2 | 7527 | |
81a76618 | 7528 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
7529 | * |
7530 | * 1. If the type of level N is known, then only the valid fields for that | |
7531 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 7532 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 7533 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 7534 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7535 | * IPv4 flow. |
7536 | * | |
7537 | * 2. If the type of level N is not known (or not understood by Open | |
7538 | * vSwitch), then no fields at all for that level may be specified. For | |
7539 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 7540 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7541 | * SCTP flow. |
7542 | * | |
81a76618 | 7543 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
7544 | * message. */ |
7545 | void | |
81a76618 | 7546 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 7547 | { |
81a76618 | 7548 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
7549 | } |
7550 | ||
81a76618 BP |
7551 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
7552 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
7553 | * sense for use on flows received from elsewhere (so that a bug in the program |
7554 | * that sent them can be reported and corrected). */ | |
7555 | void | |
81a76618 | 7556 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 7557 | { |
81a76618 | 7558 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
7559 | } |
7560 | ||
4a48cdfb BP |
7561 | static size_t |
7562 | parse_value(const char *s, const char *delimiters) | |
7563 | { | |
7564 | size_t n = 0; | |
7565 | ||
7566 | /* Iterate until we reach a delimiter. | |
7567 | * | |
7568 | * strchr(s, '\0') returns s+strlen(s), so this test handles the null | |
7569 | * terminator at the end of 's'. */ | |
7570 | while (!strchr(delimiters, s[n])) { | |
7571 | if (s[n] == '(') { | |
7572 | int level = 0; | |
7573 | do { | |
7574 | switch (s[n]) { | |
7575 | case '\0': | |
7576 | return n; | |
7577 | case '(': | |
7578 | level++; | |
7579 | break; | |
7580 | case ')': | |
7581 | level--; | |
7582 | break; | |
7583 | } | |
7584 | n++; | |
7585 | } while (level > 0); | |
7586 | } else { | |
7587 | n++; | |
7588 | } | |
7589 | } | |
7590 | return n; | |
7591 | } | |
7592 | ||
0ff22822 BP |
7593 | /* Parses a key or a key-value pair from '*stringp'. |
7594 | * | |
7595 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
7596 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
7597 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
7598 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
7599 | * terminators. Returns true. | |
7600 | * | |
7601 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
7602 | * NULL and returns false. */ | |
7603 | bool | |
7604 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
7605 | { | |
4a48cdfb BP |
7606 | /* Skip white space and delimiters. If that brings us to the end of the |
7607 | * input string, we are done and there are no more key-value pairs. */ | |
7608 | *stringp += strspn(*stringp, ", \t\r\n"); | |
7609 | if (**stringp == '\0') { | |
0ff22822 BP |
7610 | *keyp = *valuep = NULL; |
7611 | return false; | |
7612 | } | |
7613 | ||
4a48cdfb BP |
7614 | /* Extract the key and the delimiter that ends the key-value pair or begins |
7615 | * the value. Advance the input position past the key and delimiter. */ | |
7616 | char *key = *stringp; | |
7617 | size_t key_len = strcspn(key, ":=(, \t\r\n"); | |
7618 | char key_delim = key[key_len]; | |
7619 | key[key_len] = '\0'; | |
7620 | *stringp += key_len + (key_delim != '\0'); | |
0ff22822 | 7621 | |
4a48cdfb BP |
7622 | /* Figure out what delimiter ends the value: |
7623 | * | |
7624 | * - If key_delim is ":" or "=", the value extends until white space | |
7625 | * or a comma. | |
7626 | * | |
7627 | * - If key_delim is "(", the value extends until ")". | |
7628 | * | |
7629 | * If there is no value, we are done. */ | |
7630 | const char *value_delims; | |
7631 | if (key_delim == ':' || key_delim == '=') { | |
7632 | value_delims = ", \t\r\n"; | |
7633 | } else if (key_delim == '(') { | |
7634 | value_delims = ")"; | |
0ff22822 | 7635 | } else { |
4a48cdfb BP |
7636 | *keyp = key; |
7637 | *valuep = key + key_len; /* Empty string. */ | |
7638 | return true; | |
0ff22822 | 7639 | } |
0ff22822 | 7640 | |
4a48cdfb BP |
7641 | /* Extract the value. Advance the input position past the value and |
7642 | * delimiter. */ | |
7643 | char *value = *stringp; | |
7644 | size_t value_len = parse_value(value, value_delims); | |
7645 | char value_delim = value[value_len]; | |
7646 | value[value_len] = '\0'; | |
7647 | *stringp += value_len + (value_delim != '\0'); | |
7648 | ||
0ff22822 BP |
7649 | *keyp = key; |
7650 | *valuep = value; | |
7651 | return true; | |
7652 | } | |
f8e4867e SH |
7653 | |
7654 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7655 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7656 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7657 | struct ofpbuf * | |
4e022ec0 | 7658 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7659 | { |
7660 | struct ofpbuf *request; | |
7661 | ||
7662 | switch (ofp_version) { | |
7663 | case OFP10_VERSION: { | |
7664 | struct ofp10_port_stats_request *req; | |
7665 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7666 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7667 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7668 | break; |
7669 | } | |
7670 | case OFP11_VERSION: | |
2e1ae200 | 7671 | case OFP12_VERSION: |
c37c0382 | 7672 | case OFP13_VERSION: |
42dccab5 | 7673 | case OFP14_VERSION: |
b79d45a1 BP |
7674 | case OFP15_VERSION: |
7675 | case OFP16_VERSION: { | |
f8e4867e SH |
7676 | struct ofp11_port_stats_request *req; |
7677 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7678 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7679 | req->port_no = ofputil_port_to_ofp11(port); | |
7680 | break; | |
7681 | } | |
7682 | default: | |
428b2edd | 7683 | OVS_NOT_REACHED(); |
f8e4867e SH |
7684 | } |
7685 | ||
7686 | return request; | |
7687 | } | |
7688 | ||
7689 | static void | |
7690 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7691 | struct ofp10_port_stats *ps10) | |
7692 | { | |
4e022ec0 | 7693 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7694 | memset(ps10->pad, 0, sizeof ps10->pad); |
7695 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7696 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7697 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7698 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7699 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7700 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7701 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7702 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7703 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7704 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7705 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7706 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7707 | } | |
7708 | ||
7709 | static void | |
7710 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7711 | struct ofp11_port_stats *ps11) | |
7712 | { | |
7713 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7714 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7715 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7716 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7717 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7718 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7719 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7720 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7721 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7722 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7723 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7724 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7725 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7726 | ps11->collisions = htonll(ops->stats.collisions); | |
7727 | } | |
7728 | ||
2e1ae200 JR |
7729 | static void |
7730 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7731 | struct ofp13_port_stats *ps13) | |
7732 | { | |
7733 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7734 | ps13->duration_sec = htonl(ops->duration_sec); |
7735 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7736 | } |
7737 | ||
5469537b BP |
7738 | static void |
7739 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7740 | struct ovs_list *replies) |
5469537b BP |
7741 | { |
7742 | struct ofp14_port_stats_prop_ethernet *eth; | |
d6e3feb5 | 7743 | struct intel_port_stats_rfc2819 *stats_rfc2819; |
5469537b BP |
7744 | struct ofp14_port_stats *ps14; |
7745 | struct ofpbuf *reply; | |
7746 | ||
d6e3feb5 | 7747 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth + |
7748 | sizeof *stats_rfc2819); | |
5469537b BP |
7749 | |
7750 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
d6e3feb5 | 7751 | ps14->length = htons(sizeof *ps14 + sizeof *eth + |
7752 | sizeof *stats_rfc2819); | |
5469537b BP |
7753 | memset(ps14->pad, 0, sizeof ps14->pad); |
7754 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7755 | ps14->duration_sec = htonl(ops->duration_sec); | |
7756 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7757 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7758 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7759 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7760 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7761 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7762 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7763 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7764 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7765 | ||
303721ee | 7766 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7767 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7768 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7769 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7770 | eth->collisions = htonll(ops->stats.collisions); | |
d6e3feb5 | 7771 | |
7772 | uint64_t prop_type = OFPPROP_EXP(INTEL_VENDOR_ID, | |
7773 | INTEL_PORT_STATS_RFC2819); | |
7774 | ||
7775 | stats_rfc2819 = ofpprop_put_zeros(reply, prop_type, | |
7776 | sizeof *stats_rfc2819); | |
7777 | ||
7778 | memset(stats_rfc2819->pad, 0, sizeof stats_rfc2819->pad); | |
7779 | stats_rfc2819->rx_1_to_64_packets = htonll(ops->stats.rx_1_to_64_packets); | |
7780 | stats_rfc2819->rx_65_to_127_packets = | |
7781 | htonll(ops->stats.rx_65_to_127_packets); | |
7782 | stats_rfc2819->rx_128_to_255_packets = | |
7783 | htonll(ops->stats.rx_128_to_255_packets); | |
7784 | stats_rfc2819->rx_256_to_511_packets = | |
7785 | htonll(ops->stats.rx_256_to_511_packets); | |
7786 | stats_rfc2819->rx_512_to_1023_packets = | |
7787 | htonll(ops->stats.rx_512_to_1023_packets); | |
7788 | stats_rfc2819->rx_1024_to_1522_packets = | |
7789 | htonll(ops->stats.rx_1024_to_1522_packets); | |
7790 | stats_rfc2819->rx_1523_to_max_packets = | |
7791 | htonll(ops->stats.rx_1523_to_max_packets); | |
7792 | ||
7793 | stats_rfc2819->tx_1_to_64_packets = htonll(ops->stats.tx_1_to_64_packets); | |
7794 | stats_rfc2819->tx_65_to_127_packets = | |
7795 | htonll(ops->stats.tx_65_to_127_packets); | |
7796 | stats_rfc2819->tx_128_to_255_packets = | |
7797 | htonll(ops->stats.tx_128_to_255_packets); | |
7798 | stats_rfc2819->tx_256_to_511_packets = | |
7799 | htonll(ops->stats.tx_256_to_511_packets); | |
7800 | stats_rfc2819->tx_512_to_1023_packets = | |
7801 | htonll(ops->stats.tx_512_to_1023_packets); | |
7802 | stats_rfc2819->tx_1024_to_1522_packets = | |
7803 | htonll(ops->stats.tx_1024_to_1522_packets); | |
7804 | stats_rfc2819->tx_1523_to_max_packets = | |
7805 | htonll(ops->stats.tx_1523_to_max_packets); | |
7806 | ||
7807 | stats_rfc2819->tx_multicast_packets = | |
7808 | htonll(ops->stats.tx_multicast_packets); | |
7809 | stats_rfc2819->rx_broadcast_packets = | |
7810 | htonll(ops->stats.rx_broadcast_packets); | |
7811 | stats_rfc2819->tx_broadcast_packets = | |
7812 | htonll(ops->stats.tx_broadcast_packets); | |
7813 | stats_rfc2819->rx_undersized_errors = | |
7814 | htonll(ops->stats.rx_undersized_errors); | |
7815 | stats_rfc2819->rx_oversize_errors = | |
7816 | htonll(ops->stats.rx_oversize_errors); | |
7817 | stats_rfc2819->rx_fragmented_errors = | |
7818 | htonll(ops->stats.rx_fragmented_errors); | |
7819 | stats_rfc2819->rx_jabber_errors = | |
7820 | htonll(ops->stats.rx_jabber_errors); | |
5469537b | 7821 | } |
2e1ae200 | 7822 | |
ad4c35fe | 7823 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7824 | void |
ca6ba700 | 7825 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7826 | const struct ofputil_port_stats *ops) |
7827 | { | |
e28ac5cf | 7828 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7829 | case OFP13_VERSION: { |
7830 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7831 | ofputil_port_stats_to_ofp13(ops, reply); | |
7832 | break; | |
7833 | } | |
f8e4867e SH |
7834 | case OFP12_VERSION: |
7835 | case OFP11_VERSION: { | |
7836 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7837 | ofputil_port_stats_to_ofp11(ops, reply); | |
7838 | break; | |
7839 | } | |
7840 | ||
7841 | case OFP10_VERSION: { | |
7842 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7843 | ofputil_port_stats_to_ofp10(ops, reply); | |
7844 | break; | |
7845 | } | |
7846 | ||
c37c0382 | 7847 | case OFP14_VERSION: |
42dccab5 | 7848 | case OFP15_VERSION: |
b79d45a1 | 7849 | case OFP16_VERSION: |
5469537b | 7850 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7851 | break; |
7852 | ||
f8e4867e | 7853 | default: |
428b2edd | 7854 | OVS_NOT_REACHED(); |
f8e4867e SH |
7855 | } |
7856 | } | |
7857 | ||
7858 | static enum ofperr | |
7859 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7860 | const struct ofp10_port_stats *ps10) | |
7861 | { | |
f8e4867e | 7862 | |
4e022ec0 | 7863 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7864 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7865 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7866 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7867 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7868 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7869 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7870 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7871 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7872 | ops->stats.rx_frame_errors = | |
7873 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7874 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7875 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7876 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7877 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7878 | |
7879 | return 0; | |
7880 | } | |
7881 | ||
7882 | static enum ofperr | |
7883 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7884 | const struct ofp11_port_stats *ps11) | |
7885 | { | |
7886 | enum ofperr error; | |
7887 | ||
f8e4867e SH |
7888 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); |
7889 | if (error) { | |
7890 | return error; | |
7891 | } | |
7892 | ||
7893 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7894 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7895 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7896 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7897 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7898 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7899 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7900 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7901 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7902 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7903 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7904 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7905 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7906 | |
7907 | return 0; | |
7908 | } | |
7909 | ||
2e1ae200 JR |
7910 | static enum ofperr |
7911 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7912 | const struct ofp13_port_stats *ps13) | |
7913 | { | |
65e0be10 | 7914 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7915 | if (!error) { |
65e0be10 BP |
7916 | ops->duration_sec = ntohl(ps13->duration_sec); |
7917 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7918 | } |
2e1ae200 JR |
7919 | return error; |
7920 | } | |
7921 | ||
5469537b BP |
7922 | static enum ofperr |
7923 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7924 | struct ofputil_port_stats *ops) | |
be0c30df | 7925 | { |
6fd6ed71 | 7926 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7927 | |
6fd6ed71 | 7928 | if (payload->size != sizeof *eth) { |
5469537b BP |
7929 | return OFPERR_OFPBPC_BAD_LEN; |
7930 | } | |
7931 | ||
7932 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7933 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7934 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7935 | ops->stats.collisions = ntohll(eth->collisions); | |
7936 | ||
7937 | return 0; | |
7938 | } | |
7939 | ||
d6e3feb5 | 7940 | static enum ofperr |
7941 | parse_intel_port_stats_rfc2819_property(const struct ofpbuf *payload, | |
7942 | struct ofputil_port_stats *ops) | |
7943 | { | |
7944 | const struct intel_port_stats_rfc2819 *rfc2819 = payload->data; | |
7945 | ||
7946 | if (payload->size != sizeof *rfc2819) { | |
7947 | return OFPERR_OFPBPC_BAD_LEN; | |
7948 | } | |
7949 | ops->stats.rx_1_to_64_packets = ntohll(rfc2819->rx_1_to_64_packets); | |
7950 | ops->stats.rx_65_to_127_packets = ntohll(rfc2819->rx_65_to_127_packets); | |
7951 | ops->stats.rx_128_to_255_packets = ntohll(rfc2819->rx_128_to_255_packets); | |
7952 | ops->stats.rx_256_to_511_packets = ntohll(rfc2819->rx_256_to_511_packets); | |
7953 | ops->stats.rx_512_to_1023_packets = | |
7954 | ntohll(rfc2819->rx_512_to_1023_packets); | |
7955 | ops->stats.rx_1024_to_1522_packets = | |
7956 | ntohll(rfc2819->rx_1024_to_1522_packets); | |
7957 | ops->stats.rx_1523_to_max_packets = | |
7958 | ntohll(rfc2819->rx_1523_to_max_packets); | |
7959 | ||
7960 | ops->stats.tx_1_to_64_packets = ntohll(rfc2819->tx_1_to_64_packets); | |
7961 | ops->stats.tx_65_to_127_packets = ntohll(rfc2819->tx_65_to_127_packets); | |
7962 | ops->stats.tx_128_to_255_packets = ntohll(rfc2819->tx_128_to_255_packets); | |
7963 | ops->stats.tx_256_to_511_packets = ntohll(rfc2819->tx_256_to_511_packets); | |
7964 | ops->stats.tx_512_to_1023_packets = | |
7965 | ntohll(rfc2819->tx_512_to_1023_packets); | |
7966 | ops->stats.tx_1024_to_1522_packets = | |
7967 | ntohll(rfc2819->tx_1024_to_1522_packets); | |
7968 | ops->stats.tx_1523_to_max_packets = | |
7969 | ntohll(rfc2819->tx_1523_to_max_packets); | |
7970 | ||
7971 | ops->stats.tx_multicast_packets = ntohll(rfc2819->tx_multicast_packets); | |
7972 | ops->stats.rx_broadcast_packets = ntohll(rfc2819->rx_broadcast_packets); | |
7973 | ops->stats.tx_broadcast_packets = ntohll(rfc2819->tx_broadcast_packets); | |
7974 | ops->stats.rx_undersized_errors = ntohll(rfc2819->rx_undersized_errors); | |
7975 | ||
7976 | ops->stats.rx_oversize_errors = ntohll(rfc2819->rx_oversize_errors); | |
7977 | ops->stats.rx_fragmented_errors = ntohll(rfc2819->rx_fragmented_errors); | |
7978 | ops->stats.rx_jabber_errors = ntohll(rfc2819->rx_jabber_errors); | |
7979 | ||
7980 | return 0; | |
7981 | } | |
7982 | ||
7983 | static enum ofperr | |
7984 | parse_intel_port_stats_property(const struct ofpbuf *payload, | |
7985 | uint32_t exp_type, | |
7986 | struct ofputil_port_stats *ops) | |
7987 | { | |
7988 | enum ofperr error; | |
7989 | ||
7990 | switch (exp_type) { | |
7991 | case INTEL_PORT_STATS_RFC2819: | |
7992 | error = parse_intel_port_stats_rfc2819_property(payload, ops); | |
7993 | break; | |
7994 | default: | |
7995 | error = OFPERR_OFPBPC_BAD_EXP_TYPE; | |
7996 | break; | |
7997 | } | |
7998 | ||
7999 | return error; | |
8000 | } | |
8001 | ||
5469537b BP |
8002 | static enum ofperr |
8003 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
8004 | struct ofpbuf *msg) | |
8005 | { | |
0a2869d5 | 8006 | const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14); |
5469537b BP |
8007 | if (!ps14) { |
8008 | return OFPERR_OFPBRC_BAD_LEN; | |
8009 | } | |
8010 | ||
0a2869d5 | 8011 | size_t len = ntohs(ps14->length); |
6fd6ed71 | 8012 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 8013 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 8014 | } |
5469537b | 8015 | len -= sizeof *ps14; |
5469537b | 8016 | |
0a2869d5 | 8017 | enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); |
5469537b BP |
8018 | if (error) { |
8019 | return error; | |
8020 | } | |
8021 | ||
8022 | ops->duration_sec = ntohl(ps14->duration_sec); | |
8023 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
8024 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
8025 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
8026 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
8027 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
8028 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
8029 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
8030 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
8031 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
d6e3feb5 | 8032 | |
5469537b | 8033 | |
0a2869d5 BP |
8034 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
8035 | len); | |
6fd6ed71 | 8036 | while (properties.size > 0) { |
5469537b BP |
8037 | struct ofpbuf payload; |
8038 | enum ofperr error; | |
d6e3feb5 | 8039 | uint64_t type = 0; |
5469537b | 8040 | |
c5562271 | 8041 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
8042 | if (error) { |
8043 | return error; | |
8044 | } | |
5469537b BP |
8045 | switch (type) { |
8046 | case OFPPSPT14_ETHERNET: | |
8047 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
8048 | break; | |
d6e3feb5 | 8049 | case OFPPROP_EXP(INTEL_VENDOR_ID, INTEL_PORT_STATS_RFC2819): |
8050 | error = parse_intel_port_stats_property(&payload, | |
8051 | INTEL_PORT_STATS_RFC2819, | |
8052 | ops); | |
8053 | break; | |
5469537b | 8054 | default: |
34a543e3 | 8055 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
8056 | break; |
8057 | } | |
8058 | ||
8059 | if (error) { | |
8060 | return error; | |
8061 | } | |
8062 | } | |
8063 | ||
8064 | return 0; | |
be0c30df | 8065 | } |
2e1ae200 | 8066 | |
f8e4867e SH |
8067 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
8068 | * message 'oh'. */ | |
8069 | size_t | |
8070 | ofputil_count_port_stats(const struct ofp_header *oh) | |
8071 | { | |
0a2869d5 | 8072 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
f8e4867e | 8073 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
8074 | |
8075 | for (size_t n = 0; ; n++) { | |
8076 | struct ofputil_port_stats ps; | |
8077 | if (ofputil_decode_port_stats(&ps, &b)) { | |
8078 | return n; | |
8079 | } | |
5469537b | 8080 | } |
f8e4867e SH |
8081 | } |
8082 | ||
8083 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
8084 | * ofputil_port_stats in 'ps'. | |
8085 | * | |
8086 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
8087 | * message. Calling this function multiple times for a single 'msg' iterates | |
8088 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8089 | * null and not modify them between calls. | |
8090 | * | |
8091 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8092 | * otherwise a positive errno value. */ | |
8093 | int | |
8094 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
8095 | { | |
8096 | enum ofperr error; | |
8097 | enum ofpraw raw; | |
8098 | ||
d6e3feb5 | 8099 | memset(&(ps->stats), 0xFF, sizeof (ps->stats)); |
8100 | ||
6fd6ed71 | 8101 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
8102 | : ofpraw_pull(&raw, msg)); |
8103 | if (error) { | |
8104 | return error; | |
8105 | } | |
8106 | ||
6fd6ed71 | 8107 | if (!msg->size) { |
f8e4867e | 8108 | return EOF; |
5469537b BP |
8109 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
8110 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
8111 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
8112 | const struct ofp13_port_stats *ps13; | |
2e1ae200 JR |
8113 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); |
8114 | if (!ps13) { | |
8115 | goto bad_len; | |
8116 | } | |
8117 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
8118 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
8119 | const struct ofp11_port_stats *ps11; | |
8120 | ||
8121 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
8122 | if (!ps11) { | |
2e1ae200 | 8123 | goto bad_len; |
f8e4867e SH |
8124 | } |
8125 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
8126 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
8127 | const struct ofp10_port_stats *ps10; | |
8128 | ||
8129 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
8130 | if (!ps10) { | |
2e1ae200 | 8131 | goto bad_len; |
f8e4867e SH |
8132 | } |
8133 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
8134 | } else { | |
428b2edd | 8135 | OVS_NOT_REACHED(); |
f8e4867e SH |
8136 | } |
8137 | ||
2e1ae200 | 8138 | bad_len: |
437d0d22 | 8139 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 8140 | "bytes at end", msg->size); |
2e1ae200 | 8141 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
8142 | } |
8143 | ||
8144 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
8145 | * port number and stores the latter in '*ofp10_port'. | |
8146 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8147 | enum ofperr | |
8148 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 8149 | ofp_port_t *ofp10_port) |
f8e4867e SH |
8150 | { |
8151 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 8152 | case OFP16_VERSION: |
42dccab5 | 8153 | case OFP15_VERSION: |
5469537b | 8154 | case OFP14_VERSION: |
2e1ae200 | 8155 | case OFP13_VERSION: |
f8e4867e SH |
8156 | case OFP12_VERSION: |
8157 | case OFP11_VERSION: { | |
8158 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
8159 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
8160 | } | |
8161 | ||
8162 | case OFP10_VERSION: { | |
8163 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 8164 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
8165 | return 0; |
8166 | } | |
8167 | ||
8168 | default: | |
428b2edd | 8169 | OVS_NOT_REACHED(); |
f8e4867e SH |
8170 | } |
8171 | } | |
64626975 | 8172 | |
fb8f22c1 BY |
8173 | static void |
8174 | ofputil_ipfix_stats_to_reply(const struct ofputil_ipfix_stats *ois, | |
8175 | struct nx_ipfix_stats_reply *reply) | |
8176 | { | |
8177 | reply->collector_set_id = htonl(ois->collector_set_id); | |
8178 | reply->total_flows = htonll(ois->total_flows); | |
8179 | reply->current_flows = htonll(ois->current_flows); | |
8180 | reply->pkts = htonll(ois->pkts); | |
8181 | reply->ipv4_pkts = htonll(ois->ipv4_pkts); | |
8182 | reply->ipv6_pkts = htonll(ois->ipv6_pkts); | |
8183 | reply->error_pkts = htonll(ois->error_pkts); | |
8184 | reply->ipv4_error_pkts = htonll(ois->ipv4_error_pkts); | |
8185 | reply->ipv6_error_pkts = htonll(ois->ipv6_error_pkts); | |
8186 | reply->tx_pkts = htonll(ois->tx_pkts); | |
8187 | reply->tx_errors = htonll(ois->tx_errors); | |
05e81316 | 8188 | memset(reply->pad, 0, sizeof reply->pad); |
fb8f22c1 BY |
8189 | } |
8190 | ||
8191 | /* Encode a ipfix stat for 'ois' and append it to 'replies'. */ | |
8192 | void | |
8193 | ofputil_append_ipfix_stat(struct ovs_list *replies, | |
8194 | const struct ofputil_ipfix_stats *ois) | |
8195 | { | |
8196 | struct nx_ipfix_stats_reply *reply = ofpmp_append(replies, sizeof *reply); | |
8197 | ofputil_ipfix_stats_to_reply(ois, reply); | |
8198 | } | |
8199 | ||
8200 | static enum ofperr | |
8201 | ofputil_ipfix_stats_from_nx(struct ofputil_ipfix_stats *is, | |
8202 | const struct nx_ipfix_stats_reply *reply) | |
8203 | { | |
8204 | is->collector_set_id = ntohl(reply->collector_set_id); | |
8205 | is->total_flows = ntohll(reply->total_flows); | |
8206 | is->current_flows = ntohll(reply->current_flows); | |
8207 | is->pkts = ntohll(reply->pkts); | |
8208 | is->ipv4_pkts = ntohll(reply->ipv4_pkts); | |
8209 | is->ipv6_pkts = ntohll(reply->ipv6_pkts); | |
8210 | is->error_pkts = ntohll(reply->error_pkts); | |
8211 | is->ipv4_error_pkts = ntohll(reply->ipv4_error_pkts); | |
8212 | is->ipv6_error_pkts = ntohll(reply->ipv6_error_pkts); | |
8213 | is->tx_pkts = ntohll(reply->tx_pkts); | |
8214 | is->tx_errors = ntohll(reply->tx_errors); | |
8215 | ||
8216 | return 0; | |
8217 | } | |
8218 | ||
8219 | int | |
8220 | ofputil_pull_ipfix_stats(struct ofputil_ipfix_stats *is, struct ofpbuf *msg) | |
8221 | { | |
8222 | enum ofperr error; | |
8223 | enum ofpraw raw; | |
8224 | ||
8225 | memset(is, 0xFF, sizeof (*is)); | |
8226 | ||
8227 | error = (msg->header ? ofpraw_decode(&raw, msg->header) | |
8228 | : ofpraw_pull(&raw, msg)); | |
8229 | if (error) { | |
8230 | return error; | |
8231 | } | |
8232 | ||
8233 | if (!msg->size) { | |
8234 | return EOF; | |
8235 | } else if (raw == OFPRAW_NXST_IPFIX_BRIDGE_REPLY || | |
8236 | raw == OFPRAW_NXST_IPFIX_FLOW_REPLY) { | |
8237 | struct nx_ipfix_stats_reply *reply; | |
8238 | ||
8239 | reply = ofpbuf_try_pull(msg, sizeof *reply); | |
8240 | return ofputil_ipfix_stats_from_nx(is, reply); | |
8241 | } else { | |
8242 | OVS_NOT_REACHED(); | |
8243 | } | |
8244 | } | |
8245 | ||
8246 | ||
8247 | /* Returns the number of ipfix stats elements in | |
8248 | * OFPTYPE_IPFIX_BRIDGE_STATS_REPLY or OFPTYPE_IPFIX_FLOW_STATS_REPLY | |
8249 | * message 'oh'. */ | |
8250 | size_t | |
8251 | ofputil_count_ipfix_stats(const struct ofp_header *oh) | |
8252 | { | |
8253 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
8254 | ofpraw_pull_assert(&b); | |
8255 | ||
8256 | return b.size / sizeof(struct ofputil_ipfix_stats); | |
8257 | } | |
8258 | ||
7395c052 NZ |
8259 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
8260 | void | |
ca6ba700 | 8261 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 8262 | { |
5f03c983 | 8263 | struct ofputil_bucket *bucket; |
7395c052 | 8264 | |
5f03c983 | 8265 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
8266 | free(bucket->ofpacts); |
8267 | free(bucket); | |
8268 | } | |
8269 | } | |
8270 | ||
103b4866 SH |
8271 | /* Clones 'bucket' and its ofpacts data */ |
8272 | static struct ofputil_bucket * | |
8273 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
8274 | { | |
8275 | struct ofputil_bucket *new; | |
8276 | ||
8277 | new = xmemdup(bucket, sizeof *bucket); | |
8278 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
8279 | ||
8280 | return new; | |
8281 | } | |
8282 | ||
8283 | /* Clones each of the buckets in the list 'src' appending them | |
8284 | * in turn to 'dest' which should be an initialised list. | |
8285 | * An exception is that if the pointer value of a bucket in 'src' | |
8286 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
8287 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
8288 | * be cloned and appended to 'dest'. */ | |
8289 | void | |
ca6ba700 | 8290 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
8291 | const struct ofputil_bucket *skip) |
8292 | { | |
8293 | struct ofputil_bucket *bucket; | |
8294 | ||
8295 | LIST_FOR_EACH (bucket, list_node, src) { | |
8296 | struct ofputil_bucket *new_bucket; | |
8297 | ||
8298 | if (bucket == skip) { | |
8299 | continue; | |
8300 | } | |
8301 | ||
8302 | new_bucket = ofputil_bucket_clone_data(bucket); | |
417e7e66 | 8303 | ovs_list_push_back(dest, &new_bucket->list_node); |
103b4866 SH |
8304 | } |
8305 | } | |
8306 | ||
8307 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
8308 | * Returns the first bucket found or NULL if no buckets are found. */ | |
8309 | struct ofputil_bucket * | |
ca6ba700 | 8310 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
8311 | { |
8312 | struct ofputil_bucket *bucket; | |
8313 | ||
8314 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
8315 | return NULL; | |
8316 | } | |
8317 | ||
8318 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
8319 | if (bucket->bucket_id == bucket_id) { | |
8320 | return bucket; | |
8321 | } | |
8322 | } | |
8323 | ||
8324 | return NULL; | |
8325 | } | |
8326 | ||
8327 | /* Returns true if more than one bucket in the list 'buckets' | |
8328 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 8329 | bool |
ca6ba700 | 8330 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
8331 | { |
8332 | struct ofputil_bucket *i, *j; | |
8333 | ||
8334 | LIST_FOR_EACH (i, list_node, buckets) { | |
8335 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
8336 | if (i == j) { | |
8337 | break; | |
8338 | } | |
8339 | if (i->bucket_id == j->bucket_id) { | |
8340 | return true; | |
8341 | } | |
8342 | } | |
8343 | } | |
8344 | ||
8345 | return false; | |
8346 | } | |
8347 | ||
103b4866 SH |
8348 | /* Returns the bucket at the front of the list 'buckets'. |
8349 | * Undefined if 'buckets is empty. */ | |
8350 | struct ofputil_bucket * | |
ca6ba700 | 8351 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
8352 | { |
8353 | static struct ofputil_bucket *bucket; | |
8354 | ||
417e7e66 | 8355 | ASSIGN_CONTAINER(bucket, ovs_list_front(buckets), list_node); |
103b4866 SH |
8356 | |
8357 | return bucket; | |
8358 | } | |
8359 | ||
8360 | /* Returns the bucket at the back of the list 'buckets'. | |
8361 | * Undefined if 'buckets is empty. */ | |
8362 | struct ofputil_bucket * | |
ca6ba700 | 8363 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
8364 | { |
8365 | static struct ofputil_bucket *bucket; | |
8366 | ||
417e7e66 | 8367 | ASSIGN_CONTAINER(bucket, ovs_list_back(buckets), list_node); |
103b4866 SH |
8368 | |
8369 | return bucket; | |
8370 | } | |
8371 | ||
7395c052 NZ |
8372 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
8373 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
8374 | * for all groups.) | |
8375 | * | |
8376 | * Group statistics include packet and byte counts for each group. */ | |
8377 | struct ofpbuf * | |
8378 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
8379 | uint32_t group_id) | |
8380 | { | |
8381 | struct ofpbuf *request; | |
8382 | ||
8383 | switch (ofp_version) { | |
8384 | case OFP10_VERSION: | |
8385 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
8386 | "(\'-O OpenFlow11\')"); | |
8387 | case OFP11_VERSION: | |
8388 | case OFP12_VERSION: | |
c37c0382 | 8389 | case OFP13_VERSION: |
42dccab5 | 8390 | case OFP14_VERSION: |
b79d45a1 BP |
8391 | case OFP15_VERSION: |
8392 | case OFP16_VERSION: { | |
7395c052 NZ |
8393 | struct ofp11_group_stats_request *req; |
8394 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
8395 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8396 | req->group_id = htonl(group_id); | |
8397 | break; | |
8398 | } | |
8399 | default: | |
428b2edd | 8400 | OVS_NOT_REACHED(); |
7395c052 NZ |
8401 | } |
8402 | ||
8403 | return request; | |
8404 | } | |
8405 | ||
bc65c25a SH |
8406 | void |
8407 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
8408 | { | |
8409 | ofputil_bucket_list_destroy(&gd->buckets); | |
e8dba719 | 8410 | ofputil_group_properties_destroy(&gd->props); |
bc65c25a SH |
8411 | } |
8412 | ||
19187a71 BP |
8413 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
8414 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
8415 | * requested. */ | |
8416 | uint32_t | |
8417 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
8418 | { | |
0a2869d5 BP |
8419 | struct ofpbuf request = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
8420 | enum ofpraw raw = ofpraw_pull_assert(&request); | |
19187a71 BP |
8421 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { |
8422 | return OFPG_ALL; | |
8423 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
8424 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
8425 | return ntohl(*group_id); | |
8426 | } else { | |
8427 | OVS_NOT_REACHED(); | |
8428 | } | |
8429 | } | |
8430 | ||
7395c052 | 8431 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
8432 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
8433 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
8434 | * groups). | |
7395c052 NZ |
8435 | * |
8436 | * Group descriptions include the bucket and action configuration for each | |
8437 | * group. */ | |
8438 | struct ofpbuf * | |
19187a71 BP |
8439 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
8440 | uint32_t group_id) | |
7395c052 NZ |
8441 | { |
8442 | struct ofpbuf *request; | |
8443 | ||
8444 | switch (ofp_version) { | |
8445 | case OFP10_VERSION: | |
8446 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
8447 | "(\'-O OpenFlow11\')"); | |
8448 | case OFP11_VERSION: | |
8449 | case OFP12_VERSION: | |
c37c0382 AC |
8450 | case OFP13_VERSION: |
8451 | case OFP14_VERSION: | |
19187a71 BP |
8452 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
8453 | ofp_version, 0); | |
8454 | break; | |
b79d45a1 BP |
8455 | case OFP15_VERSION: |
8456 | case OFP16_VERSION: { | |
d4d3f33e | 8457 | struct ofp15_group_desc_request *req; |
19187a71 BP |
8458 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
8459 | ofp_version, 0); | |
d4d3f33e MT |
8460 | req = ofpbuf_put_zeros(request, sizeof *req); |
8461 | req->group_id = htonl(group_id); | |
7395c052 | 8462 | break; |
d4d3f33e | 8463 | } |
7395c052 | 8464 | default: |
428b2edd | 8465 | OVS_NOT_REACHED(); |
7395c052 NZ |
8466 | } |
8467 | ||
8468 | return request; | |
8469 | } | |
8470 | ||
dcbe78ad | 8471 | static void |
63759e71 AZ |
8472 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
8473 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8474 | { |
7395c052 NZ |
8475 | int i; |
8476 | ||
dcbe78ad AZ |
8477 | for (i = 0; i < gs->n_buckets; i++) { |
8478 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
8479 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 8480 | } |
7395c052 NZ |
8481 | } |
8482 | ||
8483 | static void | |
dcbe78ad | 8484 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
8485 | struct ofp11_group_stats *gs11, size_t length, |
8486 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8487 | { |
63759e71 AZ |
8488 | memset(gs11, 0, sizeof *gs11); |
8489 | gs11->length = htons(length); | |
8490 | gs11->group_id = htonl(gs->group_id); | |
8491 | gs11->ref_count = htonl(gs->ref_count); | |
8492 | gs11->packet_count = htonll(gs->packet_count); | |
8493 | gs11->byte_count = htonll(gs->byte_count); | |
8494 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 8495 | } |
7395c052 | 8496 | |
dcbe78ad AZ |
8497 | static void |
8498 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
8499 | struct ofp13_group_stats *gs13, size_t length, |
8500 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 8501 | { |
63759e71 | 8502 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
8503 | gs13->duration_sec = htonl(gs->duration_sec); |
8504 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 8505 | |
7395c052 NZ |
8506 | } |
8507 | ||
dcbe78ad | 8508 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
8509 | * replies already begun in 'replies' and appends it to the list. 'replies' |
8510 | * must have originally been initialized with ofpmp_init(). */ | |
8511 | void | |
ca6ba700 | 8512 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 8513 | const struct ofputil_group_stats *gs) |
7395c052 | 8514 | { |
63759e71 AZ |
8515 | size_t bucket_counter_size; |
8516 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 8517 | size_t length; |
7395c052 | 8518 | |
63759e71 AZ |
8519 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
8520 | ||
e28ac5cf | 8521 | switch (ofpmp_version(replies)) { |
7395c052 | 8522 | case OFP11_VERSION: |
dcbe78ad | 8523 | case OFP12_VERSION:{ |
63759e71 | 8524 | struct ofp11_group_stats *gs11; |
dcbe78ad | 8525 | |
63759e71 AZ |
8526 | length = sizeof *gs11 + bucket_counter_size; |
8527 | gs11 = ofpmp_append(replies, length); | |
8528 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
8529 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
8530 | break; |
8531 | } | |
7395c052 NZ |
8532 | |
8533 | case OFP13_VERSION: | |
42dccab5 | 8534 | case OFP14_VERSION: |
b79d45a1 BP |
8535 | case OFP15_VERSION: |
8536 | case OFP16_VERSION: { | |
63759e71 | 8537 | struct ofp13_group_stats *gs13; |
7395c052 | 8538 | |
63759e71 AZ |
8539 | length = sizeof *gs13 + bucket_counter_size; |
8540 | gs13 = ofpmp_append(replies, length); | |
8541 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
8542 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
8543 | break; |
8544 | } | |
c37c0382 | 8545 | |
7395c052 NZ |
8546 | case OFP10_VERSION: |
8547 | default: | |
428b2edd | 8548 | OVS_NOT_REACHED(); |
7395c052 NZ |
8549 | } |
8550 | } | |
7395c052 NZ |
8551 | /* Returns an OpenFlow group features request for OpenFlow version |
8552 | * 'ofp_version'. */ | |
8553 | struct ofpbuf * | |
8554 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
8555 | { | |
8556 | struct ofpbuf *request = NULL; | |
8557 | ||
8558 | switch (ofp_version) { | |
8559 | case OFP10_VERSION: | |
8560 | case OFP11_VERSION: | |
8561 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
8562 | "(\'-O OpenFlow12\')"); | |
8563 | case OFP12_VERSION: | |
c37c0382 AC |
8564 | case OFP13_VERSION: |
8565 | case OFP14_VERSION: | |
42dccab5 | 8566 | case OFP15_VERSION: |
b79d45a1 | 8567 | case OFP16_VERSION: |
7395c052 | 8568 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 8569 | ofp_version, 0); |
7395c052 | 8570 | break; |
7395c052 | 8571 | default: |
428b2edd | 8572 | OVS_NOT_REACHED(); |
7395c052 NZ |
8573 | } |
8574 | ||
8575 | return request; | |
8576 | } | |
8577 | ||
8578 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
8579 | * group features request 'request'. */ | |
8580 | struct ofpbuf * | |
8581 | ofputil_encode_group_features_reply( | |
8582 | const struct ofputil_group_features *features, | |
8583 | const struct ofp_header *request) | |
8584 | { | |
8585 | struct ofp12_group_features_stats *ogf; | |
8586 | struct ofpbuf *reply; | |
08d1e234 | 8587 | int i; |
7395c052 NZ |
8588 | |
8589 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
8590 | request->version, request->xid, 0); | |
8591 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
8592 | ogf->types = htonl(features->types); | |
8593 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
8594 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8595 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
8596 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
8597 | request->version); | |
8598 | } | |
7395c052 NZ |
8599 | |
8600 | return reply; | |
8601 | } | |
8602 | ||
8603 | /* Decodes group features reply 'oh' into 'features'. */ | |
8604 | void | |
8605 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
8606 | struct ofputil_group_features *features) | |
8607 | { | |
8608 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 8609 | int i; |
7395c052 NZ |
8610 | |
8611 | features->types = ntohl(ogf->types); | |
8612 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
8613 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8614 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
8615 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
8616 | ogf->actions[i], oh->version); | |
8617 | } | |
7395c052 NZ |
8618 | } |
8619 | ||
8620 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
8621 | * group ID and stores the latter in '*group_id'. | |
8622 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8623 | enum ofperr | |
8624 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
8625 | uint32_t *group_id) | |
8626 | { | |
8627 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
8628 | *group_id = ntohl(gsr11->group_id); | |
8629 | return 0; | |
8630 | } | |
8631 | ||
8632 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
8633 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
8634 | * caller to eventually free. | |
7395c052 NZ |
8635 | * |
8636 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
8637 | * Calling this function multiple times for a single 'msg' iterates through the | |
8638 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
8639 | * not modify them between calls. | |
8640 | * | |
8641 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8642 | * otherwise a positive errno value. */ | |
8643 | int | |
8644 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
8645 | struct ofputil_group_stats *gs) | |
8646 | { | |
8647 | struct ofp11_bucket_counter *obc; | |
8648 | struct ofp11_group_stats *ogs11; | |
8649 | enum ofpraw raw; | |
8650 | enum ofperr error; | |
8651 | size_t base_len; | |
8652 | size_t length; | |
8653 | size_t i; | |
8654 | ||
646b2a9c | 8655 | gs->bucket_stats = NULL; |
6fd6ed71 | 8656 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
8657 | : ofpraw_pull(&raw, msg)); |
8658 | if (error) { | |
8659 | return error; | |
8660 | } | |
8661 | ||
6fd6ed71 | 8662 | if (!msg->size) { |
7395c052 NZ |
8663 | return EOF; |
8664 | } | |
8665 | ||
8666 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
8667 | base_len = sizeof *ogs11; | |
8668 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
8669 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
8670 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
8671 | struct ofp13_group_stats *ogs13; | |
8672 | ||
8673 | base_len = sizeof *ogs13; | |
8674 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
8675 | if (ogs13) { | |
8676 | ogs11 = &ogs13->gs; | |
8677 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
8678 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
8679 | } else { | |
8680 | ogs11 = NULL; | |
8681 | } | |
8682 | } else { | |
428b2edd | 8683 | OVS_NOT_REACHED(); |
7395c052 NZ |
8684 | } |
8685 | ||
8686 | if (!ogs11) { | |
437d0d22 | 8687 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8688 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8689 | return OFPERR_OFPBRC_BAD_LEN; |
8690 | } | |
8691 | length = ntohs(ogs11->length); | |
8692 | if (length < sizeof base_len) { | |
34582733 | 8693 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
8694 | ofpraw_get_name(raw), length); |
8695 | return OFPERR_OFPBRC_BAD_LEN; | |
8696 | } | |
8697 | ||
8698 | gs->group_id = ntohl(ogs11->group_id); | |
8699 | gs->ref_count = ntohl(ogs11->ref_count); | |
8700 | gs->packet_count = ntohll(ogs11->packet_count); | |
8701 | gs->byte_count = ntohll(ogs11->byte_count); | |
8702 | ||
8703 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
8704 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
8705 | if (!obc) { | |
437d0d22 | 8706 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8707 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8708 | return OFPERR_OFPBRC_BAD_LEN; |
8709 | } | |
8710 | ||
646b2a9c | 8711 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
8712 | for (i = 0; i < gs->n_buckets; i++) { |
8713 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
8714 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
8715 | } | |
8716 | ||
8717 | return 0; | |
8718 | } | |
8719 | ||
5097fee5 SH |
8720 | static void |
8721 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
8722 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8723 | { | |
8724 | struct ofp11_bucket *ob; | |
8725 | size_t start; | |
8726 | ||
6fd6ed71 | 8727 | start = openflow->size; |
5097fee5 SH |
8728 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8729 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
8730 | openflow, ofp_version); | |
8731 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8732 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
8733 | ob->weight = htons(bucket->weight); |
8734 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
8735 | ob->watch_group = htonl(bucket->watch_group); | |
8736 | } | |
8737 | ||
18ac06d3 SH |
8738 | static void |
8739 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
8740 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
8741 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8742 | { | |
8743 | struct ofp15_bucket *ob; | |
8744 | size_t start, actions_start, actions_len; | |
8745 | ||
6fd6ed71 | 8746 | start = openflow->size; |
18ac06d3 SH |
8747 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8748 | ||
6fd6ed71 | 8749 | actions_start = openflow->size; |
18ac06d3 SH |
8750 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
8751 | openflow, ofp_version); | |
6fd6ed71 | 8752 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
8753 | |
8754 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 8755 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
8756 | } |
8757 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
8758 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
8759 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
8760 | } |
8761 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 8762 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
8763 | } |
8764 | ||
8765 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8766 | ob->len = htons(openflow->size - start); |
79870963 | 8767 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
8768 | ob->bucket_id = htonl(bucket_id); |
8769 | } | |
8770 | ||
53eb84a5 SH |
8771 | static void |
8772 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
8773 | const struct ofputil_group_props *gp, | |
8774 | struct ofpbuf *openflow) | |
8775 | { | |
8776 | struct ntr_group_prop_selection_method *prop; | |
8777 | size_t start; | |
8778 | ||
8779 | start = openflow->size; | |
8780 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
8781 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
8782 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
8783 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
8784 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
8785 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
8786 | strcpy(prop->selection_method, gp->selection_method); | |
8787 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 8788 | ofpprop_end(openflow, start); |
53eb84a5 SH |
8789 | } |
8790 | ||
5be50252 SH |
8791 | static void |
8792 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8793 | const struct ovs_list *buckets, |
ca6ba700 | 8794 | struct ovs_list *replies, |
5be50252 | 8795 | enum ofp_version version) |
7395c052 | 8796 | { |
417e7e66 | 8797 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
7395c052 NZ |
8798 | struct ofp11_group_desc_stats *ogds; |
8799 | struct ofputil_bucket *bucket; | |
8800 | size_t start_ogds; | |
8801 | ||
6fd6ed71 | 8802 | start_ogds = reply->size; |
7395c052 NZ |
8803 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8804 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8805 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8806 | } |
8807 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8808 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8809 | ogds->type = gds->type; |
8810 | ogds->group_id = htonl(gds->group_id); | |
8811 | ||
8812 | ofpmp_postappend(replies, start_ogds); | |
8813 | } | |
8814 | ||
18ac06d3 SH |
8815 | static void |
8816 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8817 | const struct ovs_list *buckets, |
ca6ba700 | 8818 | struct ovs_list *replies, |
18ac06d3 SH |
8819 | enum ofp_version version) |
8820 | { | |
417e7e66 | 8821 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
18ac06d3 SH |
8822 | struct ofp15_group_desc_stats *ogds; |
8823 | struct ofputil_bucket *bucket; | |
8824 | size_t start_ogds, start_buckets; | |
8825 | ||
6fd6ed71 | 8826 | start_ogds = reply->size; |
18ac06d3 | 8827 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8828 | start_buckets = reply->size; |
18ac06d3 SH |
8829 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8830 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8831 | gds->type, reply, version); | |
8832 | } | |
8833 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8834 | ogds->type = gds->type; |
8835 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8836 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8837 | |
53eb84a5 SH |
8838 | /* Add group properties */ |
8839 | if (gds->props.selection_method[0]) { | |
8840 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8841 | reply); | |
8842 | } | |
ef5774e3 | 8843 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); |
3986cae6 | 8844 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8845 | |
18ac06d3 SH |
8846 | ofpmp_postappend(replies, start_ogds); |
8847 | } | |
8848 | ||
5be50252 SH |
8849 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8850 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8851 | * initialized with ofpmp_init(). */ | |
8852 | void | |
8853 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8854 | const struct ovs_list *buckets, |
ca6ba700 | 8855 | struct ovs_list *replies) |
5be50252 SH |
8856 | { |
8857 | enum ofp_version version = ofpmp_version(replies); | |
8858 | ||
8859 | switch (version) | |
8860 | { | |
8861 | case OFP11_VERSION: | |
8862 | case OFP12_VERSION: | |
8863 | case OFP13_VERSION: | |
8864 | case OFP14_VERSION: | |
5be50252 SH |
8865 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8866 | break; | |
8867 | ||
18ac06d3 | 8868 | case OFP15_VERSION: |
b79d45a1 | 8869 | case OFP16_VERSION: |
18ac06d3 SH |
8870 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); |
8871 | break; | |
8872 | ||
5be50252 SH |
8873 | case OFP10_VERSION: |
8874 | default: | |
8875 | OVS_NOT_REACHED(); | |
8876 | } | |
8877 | } | |
8878 | ||
7395c052 | 8879 | static enum ofperr |
655ed3ae | 8880 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8881 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8882 | { |
8883 | struct ofp11_bucket *ob; | |
18ac06d3 | 8884 | uint32_t bucket_id = 0; |
7395c052 | 8885 | |
417e7e66 | 8886 | ovs_list_init(buckets); |
7395c052 NZ |
8887 | while (buckets_length > 0) { |
8888 | struct ofputil_bucket *bucket; | |
8889 | struct ofpbuf ofpacts; | |
8890 | enum ofperr error; | |
8891 | size_t ob_len; | |
8892 | ||
8893 | ob = (buckets_length >= sizeof *ob | |
8894 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8895 | : NULL); | |
8896 | if (!ob) { | |
34582733 | 8897 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8898 | buckets_length); |
e27e4ce9 | 8899 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8900 | } |
8901 | ||
8902 | ob_len = ntohs(ob->len); | |
8903 | if (ob_len < sizeof *ob) { | |
8904 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8905 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8906 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8907 | } else if (ob_len > buckets_length) { | |
8908 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8909 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8910 | ob_len, buckets_length); |
8911 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8912 | } | |
8913 | buckets_length -= ob_len; | |
8914 | ||
8915 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 | 8916 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
5c7c16d8 | 8917 | version, NULL, NULL, &ofpacts); |
7395c052 NZ |
8918 | if (error) { |
8919 | ofpbuf_uninit(&ofpacts); | |
8920 | ofputil_bucket_list_destroy(buckets); | |
8921 | return error; | |
8922 | } | |
8923 | ||
8924 | bucket = xzalloc(sizeof *bucket); | |
8925 | bucket->weight = ntohs(ob->weight); | |
8926 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8927 | if (error) { | |
8928 | ofpbuf_uninit(&ofpacts); | |
8929 | ofputil_bucket_list_destroy(buckets); | |
8930 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8931 | } | |
8932 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8933 | bucket->bucket_id = bucket_id++; |
8934 | ||
7395c052 | 8935 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8936 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8937 | ovs_list_push_back(buckets, &bucket->list_node); |
7395c052 NZ |
8938 | } |
8939 | ||
8940 | return 0; | |
8941 | } | |
8942 | ||
18ac06d3 SH |
8943 | static enum ofperr |
8944 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8945 | enum ofp_version version, uint8_t group_type, |
8946 | struct ovs_list *buckets) | |
18ac06d3 SH |
8947 | { |
8948 | struct ofp15_bucket *ob; | |
8949 | ||
417e7e66 | 8950 | ovs_list_init(buckets); |
18ac06d3 SH |
8951 | while (buckets_length > 0) { |
8952 | struct ofputil_bucket *bucket = NULL; | |
8953 | struct ofpbuf ofpacts; | |
8954 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
18ac06d3 SH |
8955 | size_t ob_len, actions_len, properties_len; |
8956 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8957 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8958 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8959 | |
8960 | ofpbuf_init(&ofpacts, 0); | |
8961 | ||
8962 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8963 | if (!ob) { | |
8964 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8965 | " leftover bytes", buckets_length); | |
8966 | goto err; | |
8967 | } | |
8968 | ||
8969 | ob_len = ntohs(ob->len); | |
79870963 | 8970 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8971 | |
8972 | if (ob_len < sizeof *ob) { | |
8973 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8974 | "%"PRIuSIZE" is not valid", ob_len); | |
8975 | goto err; | |
8976 | } else if (ob_len > buckets_length) { | |
8977 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8978 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8979 | PRIuSIZE, ob_len, buckets_length); | |
8980 | goto err; | |
8981 | } else if (actions_len > ob_len - sizeof *ob) { | |
8982 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8983 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8984 | "data size %"PRIuSIZE, actions_len, | |
8985 | ob_len - sizeof *ob); | |
8986 | goto err; | |
8987 | } | |
8988 | buckets_length -= ob_len; | |
8989 | ||
8990 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
5c7c16d8 | 8991 | NULL, NULL, &ofpacts); |
18ac06d3 SH |
8992 | if (err) { |
8993 | goto err; | |
8994 | } | |
8995 | ||
8996 | properties_len = ob_len - sizeof *ob - actions_len; | |
0a2869d5 BP |
8997 | struct ofpbuf properties = ofpbuf_const_initializer( |
8998 | ofpbuf_pull(msg, properties_len), properties_len); | |
6fd6ed71 | 8999 | while (properties.size > 0) { |
18ac06d3 | 9000 | struct ofpbuf payload; |
34a543e3 | 9001 | uint64_t type; |
18ac06d3 | 9002 | |
c5562271 | 9003 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
9004 | if (err) { |
9005 | goto err; | |
9006 | } | |
9007 | ||
9008 | switch (type) { | |
9009 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 9010 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
9011 | break; |
9012 | ||
9013 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 9014 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
9015 | break; |
9016 | ||
9017 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 9018 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
9019 | break; |
9020 | ||
9021 | default: | |
34a543e3 | 9022 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
9023 | break; |
9024 | } | |
9025 | ||
9026 | if (err) { | |
9027 | goto err; | |
9028 | } | |
9029 | } | |
9030 | ||
9031 | bucket = xzalloc(sizeof *bucket); | |
9032 | ||
9033 | bucket->weight = ntohs(weight); | |
9034 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
9035 | if (err) { | |
9036 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
9037 | goto err; | |
9038 | } | |
9039 | bucket->watch_group = ntohl(watch_group); | |
9040 | bucket->bucket_id = ntohl(ob->bucket_id); | |
9041 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
9042 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
9043 | bucket->bucket_id); | |
9044 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
9045 | goto err; | |
9046 | } | |
9047 | ||
9048 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 9049 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 9050 | ovs_list_push_back(buckets, &bucket->list_node); |
18ac06d3 SH |
9051 | |
9052 | continue; | |
9053 | ||
9054 | err: | |
9055 | free(bucket); | |
9056 | ofpbuf_uninit(&ofpacts); | |
9057 | ofputil_bucket_list_destroy(buckets); | |
9058 | return err; | |
9059 | } | |
9060 | ||
9061 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
9062 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
9063 | ofputil_bucket_list_destroy(buckets); | |
9064 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9065 | } | |
9066 | ||
9067 | return 0; | |
9068 | } | |
9069 | ||
bc65c25a SH |
9070 | static void |
9071 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
9072 | { | |
9073 | memset(gp, 0, sizeof *gp); | |
9074 | } | |
9075 | ||
e8dba719 JR |
9076 | void |
9077 | ofputil_group_properties_copy(struct ofputil_group_props *to, | |
9078 | const struct ofputil_group_props *from) | |
9079 | { | |
9080 | *to = *from; | |
9081 | to->fields.values = xmemdup(from->fields.values, from->fields.values_size); | |
9082 | } | |
9083 | ||
9084 | void | |
9085 | ofputil_group_properties_destroy(struct ofputil_group_props *gp) | |
9086 | { | |
9087 | free(gp->fields.values); | |
9088 | } | |
9089 | ||
bc65c25a SH |
9090 | static enum ofperr |
9091 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
9092 | enum ofp11_group_type group_type, | |
9093 | enum ofp15_group_mod_command group_cmd, | |
9094 | struct ofputil_group_props *gp) | |
9095 | { | |
9096 | struct ntr_group_prop_selection_method *prop = payload->data; | |
9097 | size_t fields_len, method_len; | |
9098 | enum ofperr error; | |
9099 | ||
9100 | switch (group_type) { | |
9101 | case OFPGT11_SELECT: | |
9102 | break; | |
9103 | case OFPGT11_ALL: | |
9104 | case OFPGT11_INDIRECT: | |
9105 | case OFPGT11_FF: | |
c5562271 BP |
9106 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
9107 | "only allowed for select groups"); | |
bc65c25a SH |
9108 | return OFPERR_OFPBPC_BAD_VALUE; |
9109 | default: | |
9110 | OVS_NOT_REACHED(); | |
9111 | } | |
9112 | ||
9113 | switch (group_cmd) { | |
9114 | case OFPGC15_ADD: | |
9115 | case OFPGC15_MODIFY: | |
88b87a36 | 9116 | case OFPGC15_ADD_OR_MOD: |
bc65c25a SH |
9117 | break; |
9118 | case OFPGC15_DELETE: | |
9119 | case OFPGC15_INSERT_BUCKET: | |
9120 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
9121 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
9122 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
9123 | return OFPERR_OFPBPC_BAD_VALUE; |
9124 | default: | |
9125 | OVS_NOT_REACHED(); | |
9126 | } | |
9127 | ||
9128 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
9129 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
9130 | "length %u is not valid", payload->size); | |
bc65c25a SH |
9131 | return OFPERR_OFPBPC_BAD_LEN; |
9132 | } | |
9133 | ||
9134 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
9135 | ||
9136 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
9137 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9138 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
9139 | return OFPERR_OFPBPC_BAD_VALUE; |
9140 | } | |
9141 | ||
53cc166a JR |
9142 | if (strcmp("hash", prop->selection_method) |
9143 | && strcmp("dp_hash", prop->selection_method)) { | |
c5562271 BP |
9144 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9145 | "ntr selection method '%s' is not supported", | |
9146 | prop->selection_method); | |
0c4b9393 SH |
9147 | return OFPERR_OFPBPC_BAD_VALUE; |
9148 | } | |
53cc166a | 9149 | /* 'method_len' is now non-zero. */ |
bc65c25a SH |
9150 | |
9151 | strcpy(gp->selection_method, prop->selection_method); | |
9152 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
9153 | ||
bc65c25a SH |
9154 | ofpbuf_pull(payload, sizeof *prop); |
9155 | ||
9156 | fields_len = ntohs(prop->length) - sizeof *prop; | |
53cc166a JR |
9157 | if (fields_len && strcmp("hash", gp->selection_method)) { |
9158 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method %s " | |
9159 | "does not support fields", gp->selection_method); | |
bc65c25a SH |
9160 | return OFPERR_OFPBPC_BAD_VALUE; |
9161 | } | |
9162 | ||
9163 | error = oxm_pull_field_array(payload->data, fields_len, | |
9164 | &gp->fields); | |
9165 | if (error) { | |
c5562271 BP |
9166 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
9167 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
9168 | return error; |
9169 | } | |
9170 | ||
9171 | return 0; | |
9172 | } | |
9173 | ||
bc65c25a SH |
9174 | static enum ofperr |
9175 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
9176 | enum ofp11_group_type group_type, | |
9177 | enum ofp15_group_mod_command group_cmd, | |
9178 | struct ofputil_group_props *gp, | |
9179 | size_t properties_len) | |
9180 | { | |
0a2869d5 BP |
9181 | struct ofpbuf properties = ofpbuf_const_initializer( |
9182 | ofpbuf_pull(msg, properties_len), properties_len); | |
bc65c25a SH |
9183 | while (properties.size > 0) { |
9184 | struct ofpbuf payload; | |
9185 | enum ofperr error; | |
34a543e3 | 9186 | uint64_t type; |
bc65c25a | 9187 | |
c5562271 | 9188 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
9189 | if (error) { |
9190 | return error; | |
9191 | } | |
9192 | ||
9193 | switch (type) { | |
34a543e3 BP |
9194 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
9195 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
9196 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
9197 | group_cmd, gp); | |
bc65c25a SH |
9198 | break; |
9199 | ||
9200 | default: | |
34a543e3 | 9201 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
9202 | break; |
9203 | } | |
9204 | ||
9205 | if (error) { | |
9206 | return error; | |
9207 | } | |
9208 | } | |
9209 | ||
9210 | return 0; | |
9211 | } | |
9212 | ||
975910f2 SH |
9213 | static int |
9214 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
9215 | struct ofpbuf *msg, | |
9216 | enum ofp_version version) | |
7395c052 NZ |
9217 | { |
9218 | struct ofp11_group_desc_stats *ogds; | |
9219 | size_t length; | |
9220 | ||
6fd6ed71 | 9221 | if (!msg->header) { |
7395c052 NZ |
9222 | ofpraw_pull_assert(msg); |
9223 | } | |
9224 | ||
6fd6ed71 | 9225 | if (!msg->size) { |
7395c052 NZ |
9226 | return EOF; |
9227 | } | |
9228 | ||
9229 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9230 | if (!ogds) { | |
437d0d22 | 9231 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 9232 | "leftover bytes at end", msg->size); |
7395c052 NZ |
9233 | return OFPERR_OFPBRC_BAD_LEN; |
9234 | } | |
9235 | gd->type = ogds->type; | |
9236 | gd->group_id = ntohl(ogds->group_id); | |
9237 | ||
9238 | length = ntohs(ogds->length); | |
6fd6ed71 | 9239 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 9240 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 9241 | "length %"PRIuSIZE, length); |
7395c052 NZ |
9242 | return OFPERR_OFPBRC_BAD_LEN; |
9243 | } | |
9244 | ||
655ed3ae SH |
9245 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
9246 | &gd->buckets); | |
7395c052 NZ |
9247 | } |
9248 | ||
18ac06d3 SH |
9249 | static int |
9250 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
9251 | struct ofpbuf *msg, | |
9252 | enum ofp_version version) | |
9253 | { | |
9254 | struct ofp15_group_desc_stats *ogds; | |
9255 | uint16_t length, bucket_list_len; | |
bc65c25a | 9256 | int error; |
18ac06d3 | 9257 | |
6fd6ed71 | 9258 | if (!msg->header) { |
18ac06d3 SH |
9259 | ofpraw_pull_assert(msg); |
9260 | } | |
9261 | ||
6fd6ed71 | 9262 | if (!msg->size) { |
18ac06d3 SH |
9263 | return EOF; |
9264 | } | |
9265 | ||
9266 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9267 | if (!ogds) { | |
9268 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 9269 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
9270 | return OFPERR_OFPBRC_BAD_LEN; |
9271 | } | |
9272 | gd->type = ogds->type; | |
9273 | gd->group_id = ntohl(ogds->group_id); | |
9274 | ||
9275 | length = ntohs(ogds->length); | |
6fd6ed71 | 9276 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
9277 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
9278 | "length %u", length); | |
9279 | return OFPERR_OFPBRC_BAD_LEN; | |
9280 | } | |
9281 | ||
9282 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
9283 | if (length < bucket_list_len + sizeof *ogds) { | |
9284 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
9285 | "bucket list length %u", bucket_list_len); | |
9286 | return OFPERR_OFPBRC_BAD_LEN; | |
9287 | } | |
64e8c446 | 9288 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
9289 | &gd->buckets); |
9290 | if (error) { | |
9291 | return error; | |
9292 | } | |
18ac06d3 | 9293 | |
bc65c25a SH |
9294 | /* By definition group desc messages don't have a group mod command. |
9295 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
9296 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
9297 | * against group mod messages with other commands supplying | |
9298 | * a NTR selection method group experimenter property. | |
9299 | * Such properties are valid for group desc replies so | |
9300 | * claim that the group mod command is OFPGC15_ADD to | |
9301 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
9302 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 9303 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
9304 | } |
9305 | ||
975910f2 SH |
9306 | /* Converts a group description reply in 'msg' into an abstract |
9307 | * ofputil_group_desc in 'gd'. | |
9308 | * | |
9309 | * Multiple group description replies can be packed into a single OpenFlow | |
9310 | * message. Calling this function multiple times for a single 'msg' iterates | |
9311 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9312 | * null and not modify them between calls. | |
9313 | * | |
9314 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9315 | * otherwise a positive errno value. */ | |
9316 | int | |
9317 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
9318 | struct ofpbuf *msg, enum ofp_version version) | |
9319 | { | |
bc65c25a SH |
9320 | ofputil_init_group_properties(&gd->props); |
9321 | ||
975910f2 SH |
9322 | switch (version) |
9323 | { | |
9324 | case OFP11_VERSION: | |
9325 | case OFP12_VERSION: | |
9326 | case OFP13_VERSION: | |
9327 | case OFP14_VERSION: | |
975910f2 SH |
9328 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
9329 | ||
18ac06d3 | 9330 | case OFP15_VERSION: |
b79d45a1 | 9331 | case OFP16_VERSION: |
18ac06d3 SH |
9332 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); |
9333 | ||
975910f2 SH |
9334 | case OFP10_VERSION: |
9335 | default: | |
9336 | OVS_NOT_REACHED(); | |
9337 | } | |
9338 | } | |
9339 | ||
bc65c25a SH |
9340 | void |
9341 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
9342 | { | |
9343 | ofputil_bucket_list_destroy(&gm->buckets); | |
e8dba719 | 9344 | ofputil_group_properties_destroy(&gm->props); |
bc65c25a SH |
9345 | } |
9346 | ||
4498bea5 SH |
9347 | static struct ofpbuf * |
9348 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
9349 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
9350 | { |
9351 | struct ofpbuf *b; | |
9352 | struct ofp11_group_mod *ogm; | |
9353 | size_t start_ogm; | |
7395c052 | 9354 | struct ofputil_bucket *bucket; |
7395c052 | 9355 | |
4498bea5 | 9356 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 9357 | start_ogm = b->size; |
4498bea5 SH |
9358 | ofpbuf_put_zeros(b, sizeof *ogm); |
9359 | ||
9360 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9361 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
9362 | } | |
9363 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9364 | ogm->command = htons(gm->command); | |
9365 | ogm->type = gm->type; | |
9366 | ogm->group_id = htonl(gm->group_id); | |
9367 | ||
9368 | return b; | |
9369 | } | |
9370 | ||
18ac06d3 SH |
9371 | static struct ofpbuf * |
9372 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
9373 | const struct ofputil_group_mod *gm) | |
9374 | { | |
9375 | struct ofpbuf *b; | |
9376 | struct ofp15_group_mod *ogm; | |
9377 | size_t start_ogm; | |
9378 | struct ofputil_bucket *bucket; | |
9379 | struct id_pool *bucket_ids = NULL; | |
9380 | ||
9381 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 9382 | start_ogm = b->size; |
18ac06d3 SH |
9383 | ofpbuf_put_zeros(b, sizeof *ogm); |
9384 | ||
9385 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9386 | uint32_t bucket_id; | |
9387 | ||
9388 | /* Generate a bucket id if none was supplied */ | |
9389 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
9390 | if (!bucket_ids) { | |
9391 | const struct ofputil_bucket *bkt; | |
9392 | ||
9393 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
9394 | ||
9395 | /* Mark all bucket_ids that are present in gm | |
9396 | * as used in the pool. */ | |
9397 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
9398 | if (bkt == bucket) { | |
9399 | break; | |
9400 | } | |
9401 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
9402 | id_pool_add(bucket_ids, bkt->bucket_id); | |
9403 | } | |
9404 | } | |
9405 | } | |
9406 | ||
9407 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
9408 | OVS_NOT_REACHED(); | |
9409 | } | |
9410 | } else { | |
9411 | bucket_id = bucket->bucket_id; | |
9412 | } | |
9413 | ||
9414 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
9415 | } | |
9416 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9417 | ogm->command = htons(gm->command); | |
9418 | ogm->type = gm->type; | |
9419 | ogm->group_id = htonl(gm->group_id); | |
9420 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 9421 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 9422 | |
53eb84a5 SH |
9423 | /* Add group properties */ |
9424 | if (gm->props.selection_method[0]) { | |
9425 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
9426 | } | |
9427 | ||
18ac06d3 SH |
9428 | id_pool_destroy(bucket_ids); |
9429 | return b; | |
9430 | } | |
9431 | ||
d4b1d0ca | 9432 | static void |
9dd30b05 BP |
9433 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
9434 | { | |
d4b1d0ca SH |
9435 | const char *opt_version; |
9436 | const char *version; | |
9437 | const char *cmd_str; | |
9438 | ||
9439 | switch (cmd) { | |
9440 | case OFPGC15_ADD: | |
9441 | case OFPGC15_MODIFY: | |
88b87a36 | 9442 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9443 | case OFPGC15_DELETE: |
9444 | version = "1.1"; | |
9445 | opt_version = "11"; | |
9446 | break; | |
9447 | ||
9448 | case OFPGC15_INSERT_BUCKET: | |
9449 | case OFPGC15_REMOVE_BUCKET: | |
9450 | version = "1.5"; | |
9451 | opt_version = "15"; | |
9dd30b05 | 9452 | break; |
d4b1d0ca SH |
9453 | |
9454 | default: | |
9455 | OVS_NOT_REACHED(); | |
9456 | } | |
9457 | ||
9458 | switch (cmd) { | |
9459 | case OFPGC15_ADD: | |
9460 | cmd_str = "add-group"; | |
9461 | break; | |
9462 | ||
9463 | case OFPGC15_MODIFY: | |
88b87a36 | 9464 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9465 | cmd_str = "mod-group"; |
9466 | break; | |
9467 | ||
9468 | case OFPGC15_DELETE: | |
9469 | cmd_str = "del-group"; | |
9470 | break; | |
9471 | ||
9472 | case OFPGC15_INSERT_BUCKET: | |
9473 | cmd_str = "insert-bucket"; | |
9474 | break; | |
9475 | ||
9476 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 9477 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
9478 | break; |
9479 | ||
9480 | default: | |
9481 | OVS_NOT_REACHED(); | |
9482 | } | |
9483 | ||
9484 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
9485 | cmd_str, version, opt_version); | |
9486 | ||
9487 | } | |
9488 | ||
4498bea5 SH |
9489 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
9490 | * 'ofp_version' and returns the message. */ | |
9491 | struct ofpbuf * | |
9492 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
9493 | const struct ofputil_group_mod *gm) | |
9494 | { | |
d4b1d0ca | 9495 | |
7395c052 | 9496 | switch (ofp_version) { |
d4b1d0ca SH |
9497 | case OFP10_VERSION: |
9498 | bad_group_cmd(gm->command); | |
7395c052 NZ |
9499 | |
9500 | case OFP11_VERSION: | |
9501 | case OFP12_VERSION: | |
c37c0382 AC |
9502 | case OFP13_VERSION: |
9503 | case OFP14_VERSION: | |
88b87a36 | 9504 | if (gm->command > OFPGC11_DELETE && gm->command != OFPGC11_ADD_OR_MOD) { |
d4b1d0ca SH |
9505 | bad_group_cmd(gm->command); |
9506 | } | |
4498bea5 | 9507 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 9508 | |
18ac06d3 | 9509 | case OFP15_VERSION: |
b79d45a1 | 9510 | case OFP16_VERSION: |
18ac06d3 SH |
9511 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); |
9512 | ||
7395c052 | 9513 | default: |
428b2edd | 9514 | OVS_NOT_REACHED(); |
7395c052 | 9515 | } |
7395c052 NZ |
9516 | } |
9517 | ||
aead63f2 SH |
9518 | static enum ofperr |
9519 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9520 | struct ofputil_group_mod *gm) | |
9521 | { | |
9522 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 9523 | enum ofperr error; |
aead63f2 SH |
9524 | |
9525 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9526 | gm->command = ntohs(ogm->command); | |
9527 | gm->type = ogm->type; | |
9528 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 9529 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 9530 | |
6fd6ed71 | 9531 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
9532 | &gm->buckets); |
9533 | ||
9534 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
9535 | if (!error | |
9536 | && ofp_version >= OFP13_VERSION | |
9537 | && gm->command == OFPGC11_DELETE | |
417e7e66 | 9538 | && !ovs_list_is_empty(&gm->buckets)) { |
08ba0810 BP |
9539 | error = OFPERR_OFPGMFC_INVALID_GROUP; |
9540 | } | |
9541 | ||
9542 | return error; | |
aead63f2 SH |
9543 | } |
9544 | ||
18ac06d3 SH |
9545 | static enum ofperr |
9546 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9547 | struct ofputil_group_mod *gm) | |
9548 | { | |
9549 | const struct ofp15_group_mod *ogm; | |
9550 | uint16_t bucket_list_len; | |
9551 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
9552 | ||
9553 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9554 | gm->command = ntohs(ogm->command); | |
9555 | gm->type = ogm->type; | |
9556 | gm->group_id = ntohl(ogm->group_id); | |
9557 | ||
9558 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
9559 | switch (gm->command) { | |
9560 | case OFPGC15_REMOVE_BUCKET: | |
9561 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9562 | error = 0; | |
9563 | } | |
9564 | /* Fall through */ | |
9565 | case OFPGC15_INSERT_BUCKET: | |
9566 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
9567 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
9568 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
9569 | error = 0; | |
9570 | } | |
9571 | break; | |
9572 | ||
9573 | case OFPGC11_ADD: | |
9574 | case OFPGC11_MODIFY: | |
88b87a36 | 9575 | case OFPGC11_ADD_OR_MOD: |
18ac06d3 SH |
9576 | case OFPGC11_DELETE: |
9577 | default: | |
9578 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9579 | error = 0; | |
9580 | } | |
9581 | break; | |
9582 | } | |
9583 | if (error) { | |
9584 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
9585 | "group command bucket id (%u) is out of range", | |
9586 | gm->command_bucket_id); | |
9587 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9588 | } | |
9589 | ||
79870963 | 9590 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 9591 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 9592 | gm->type, &gm->buckets); |
bc65c25a SH |
9593 | if (error) { |
9594 | return error; | |
18ac06d3 SH |
9595 | } |
9596 | ||
bc65c25a SH |
9597 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
9598 | msg->size); | |
18ac06d3 SH |
9599 | } |
9600 | ||
7395c052 NZ |
9601 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
9602 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
9603 | enum ofperr | |
9604 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
9605 | struct ofputil_group_mod *gm) | |
9606 | { | |
0a2869d5 | 9607 | ofputil_init_group_properties(&gm->props); |
7395c052 | 9608 | |
0a2869d5 BP |
9609 | enum ofp_version ofp_version = oh->version; |
9610 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
7395c052 NZ |
9611 | ofpraw_pull_assert(&msg); |
9612 | ||
0a2869d5 | 9613 | enum ofperr err; |
aead63f2 SH |
9614 | switch (ofp_version) |
9615 | { | |
9616 | case OFP11_VERSION: | |
9617 | case OFP12_VERSION: | |
9618 | case OFP13_VERSION: | |
9619 | case OFP14_VERSION: | |
aead63f2 SH |
9620 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
9621 | break; | |
9622 | ||
18ac06d3 | 9623 | case OFP15_VERSION: |
b79d45a1 | 9624 | case OFP16_VERSION: |
18ac06d3 SH |
9625 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); |
9626 | break; | |
9627 | ||
aead63f2 SH |
9628 | case OFP10_VERSION: |
9629 | default: | |
9630 | OVS_NOT_REACHED(); | |
9631 | } | |
e57681e5 SH |
9632 | if (err) { |
9633 | return err; | |
9634 | } | |
9635 | ||
e1799eb7 SH |
9636 | switch (gm->type) { |
9637 | case OFPGT11_INDIRECT: | |
beaa2b87 LS |
9638 | if (gm->command != OFPGC11_DELETE |
9639 | && !ovs_list_is_singleton(&gm->buckets) ) { | |
290eada7 | 9640 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
9641 | } |
9642 | break; | |
9643 | case OFPGT11_ALL: | |
9644 | case OFPGT11_SELECT: | |
9645 | case OFPGT11_FF: | |
9646 | break; | |
9647 | default: | |
09d4b951 | 9648 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
9649 | } |
9650 | ||
9651 | switch (gm->command) { | |
9652 | case OFPGC11_ADD: | |
9653 | case OFPGC11_MODIFY: | |
88b87a36 | 9654 | case OFPGC11_ADD_OR_MOD: |
65075b99 SH |
9655 | case OFPGC11_DELETE: |
9656 | case OFPGC15_INSERT_BUCKET: | |
9657 | break; | |
9658 | case OFPGC15_REMOVE_BUCKET: | |
417e7e66 | 9659 | if (!ovs_list_is_empty(&gm->buckets)) { |
65075b99 SH |
9660 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9661 | } | |
9662 | break; | |
9663 | default: | |
09d4b951 | 9664 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
9665 | } |
9666 | ||
0a2869d5 | 9667 | struct ofputil_bucket *bucket; |
e57681e5 | 9668 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
9669 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
9670 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9671 | } | |
9672 | ||
e57681e5 SH |
9673 | switch (gm->type) { |
9674 | case OFPGT11_ALL: | |
9675 | case OFPGT11_INDIRECT: | |
9676 | if (ofputil_bucket_has_liveness(bucket)) { | |
9677 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
9678 | } | |
9679 | break; | |
9680 | case OFPGT11_SELECT: | |
9681 | break; | |
9682 | case OFPGT11_FF: | |
9683 | if (!ofputil_bucket_has_liveness(bucket)) { | |
9684 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9685 | } | |
9686 | break; | |
9687 | default: | |
896313f3 FL |
9688 | /* Returning BAD TYPE to be consistent |
9689 | * though gm->type has been checked already. */ | |
9690 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
9691 | } |
9692 | } | |
9693 | ||
9694 | return 0; | |
7395c052 NZ |
9695 | } |
9696 | ||
25070e04 JR |
9697 | /* Destroys 'bms'. */ |
9698 | void | |
6dd3c787 JR |
9699 | ofputil_free_bundle_msgs(struct ofputil_bundle_msg *bms, size_t n_bms) |
9700 | { | |
9701 | for (size_t i = 0; i < n_bms; i++) { | |
9702 | switch ((int)bms[i].type) { | |
9703 | case OFPTYPE_FLOW_MOD: | |
9704 | free(CONST_CAST(struct ofpact *, bms[i].fm.ofpacts)); | |
9705 | break; | |
9706 | case OFPTYPE_GROUP_MOD: | |
9707 | ofputil_uninit_group_mod(&bms[i].gm); | |
9708 | break; | |
9709 | case OFPTYPE_PACKET_OUT: | |
9710 | free(bms[i].po.ofpacts); | |
9711 | free(CONST_CAST(void *, bms[i].po.packet)); | |
9712 | break; | |
9713 | default: | |
9714 | break; | |
9715 | } | |
9716 | } | |
9717 | free(bms); | |
9718 | } | |
9719 | ||
9720 | void | |
9721 | ofputil_encode_bundle_msgs(const struct ofputil_bundle_msg *bms, | |
9722 | size_t n_bms, struct ovs_list *requests, | |
25070e04 JR |
9723 | enum ofputil_protocol protocol) |
9724 | { | |
9725 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
9726 | ||
9727 | for (size_t i = 0; i < n_bms; i++) { | |
9728 | struct ofpbuf *request = NULL; | |
9729 | ||
9730 | switch ((int)bms[i].type) { | |
9731 | case OFPTYPE_FLOW_MOD: | |
9732 | request = ofputil_encode_flow_mod(&bms[i].fm, protocol); | |
25070e04 JR |
9733 | break; |
9734 | case OFPTYPE_GROUP_MOD: | |
9735 | request = ofputil_encode_group_mod(version, &bms[i].gm); | |
6dd3c787 JR |
9736 | break; |
9737 | case OFPTYPE_PACKET_OUT: | |
9738 | request = ofputil_encode_packet_out(&bms[i].po, protocol); | |
25070e04 JR |
9739 | break; |
9740 | default: | |
9741 | break; | |
9742 | } | |
9743 | if (request) { | |
9744 | ovs_list_push_back(requests, &request->list_node); | |
9745 | } | |
9746 | } | |
25070e04 JR |
9747 | } |
9748 | ||
64626975 SH |
9749 | /* Parse a queue status request message into 'oqsr'. |
9750 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
9751 | enum ofperr | |
9752 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
9753 | struct ofputil_queue_stats_request *oqsr) | |
9754 | { | |
9755 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 9756 | case OFP16_VERSION: |
42dccab5 | 9757 | case OFP15_VERSION: |
c37c0382 | 9758 | case OFP14_VERSION: |
2e1ae200 | 9759 | case OFP13_VERSION: |
64626975 SH |
9760 | case OFP12_VERSION: |
9761 | case OFP11_VERSION: { | |
9762 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
9763 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
9764 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
9765 | } | |
9766 | ||
9767 | case OFP10_VERSION: { | |
7f05e7ab JR |
9768 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
9769 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 9770 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
9771 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
9772 | if (oqsr->port_no == OFPP_ALL) { | |
9773 | oqsr->port_no = OFPP_ANY; | |
9774 | } | |
64626975 SH |
9775 | return 0; |
9776 | } | |
9777 | ||
9778 | default: | |
428b2edd | 9779 | OVS_NOT_REACHED(); |
64626975 SH |
9780 | } |
9781 | } | |
9782 | ||
0746a84f BP |
9783 | /* Encode a queue stats request for 'oqsr', the encoded message |
9784 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9785 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9786 | struct ofpbuf * |
9787 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9788 | const struct ofputil_queue_stats_request *oqsr) | |
9789 | { | |
9790 | struct ofpbuf *request; | |
9791 | ||
9792 | switch (ofp_version) { | |
9793 | case OFP11_VERSION: | |
2e1ae200 | 9794 | case OFP12_VERSION: |
c37c0382 | 9795 | case OFP13_VERSION: |
42dccab5 | 9796 | case OFP14_VERSION: |
b79d45a1 BP |
9797 | case OFP15_VERSION: |
9798 | case OFP16_VERSION: { | |
64626975 SH |
9799 | struct ofp11_queue_stats_request *req; |
9800 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9801 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9802 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9803 | req->queue_id = htonl(oqsr->queue_id); | |
9804 | break; | |
9805 | } | |
9806 | case OFP10_VERSION: { | |
9807 | struct ofp10_queue_stats_request *req; | |
9808 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9809 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9810 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9811 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9812 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9813 | req->queue_id = htonl(oqsr->queue_id); |
9814 | break; | |
9815 | } | |
9816 | default: | |
428b2edd | 9817 | OVS_NOT_REACHED(); |
64626975 SH |
9818 | } |
9819 | ||
9820 | return request; | |
9821 | } | |
9822 | ||
9823 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9824 | * message 'oh'. */ | |
9825 | size_t | |
9826 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9827 | { | |
0a2869d5 | 9828 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
64626975 | 9829 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
9830 | |
9831 | for (size_t n = 0; ; n++) { | |
9832 | struct ofputil_queue_stats qs; | |
9833 | if (ofputil_decode_queue_stats(&qs, &b)) { | |
9834 | return n; | |
9835 | } | |
1bb2cdbe | 9836 | } |
64626975 SH |
9837 | } |
9838 | ||
9839 | static enum ofperr | |
9840 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9841 | const struct ofp10_queue_stats *qs10) | |
9842 | { | |
4e022ec0 | 9843 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9844 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9845 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9846 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9847 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9848 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9849 | |
9850 | return 0; | |
9851 | } | |
9852 | ||
9853 | static enum ofperr | |
9854 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9855 | const struct ofp11_queue_stats *qs11) | |
9856 | { | |
9857 | enum ofperr error; | |
9858 | ||
9859 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9860 | if (error) { | |
9861 | return error; | |
9862 | } | |
9863 | ||
9864 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9865 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9866 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9867 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9868 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9869 | |
9870 | return 0; | |
9871 | } | |
9872 | ||
2e1ae200 JR |
9873 | static enum ofperr |
9874 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9875 | const struct ofp13_queue_stats *qs13) | |
9876 | { | |
6dc34a0d | 9877 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9878 | if (!error) { |
6dc34a0d BP |
9879 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9880 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9881 | } |
9882 | ||
9883 | return error; | |
9884 | } | |
9885 | ||
1bb2cdbe BP |
9886 | static enum ofperr |
9887 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9888 | struct ofpbuf *msg) | |
9889 | { | |
9890 | const struct ofp14_queue_stats *qs14; | |
9891 | size_t len; | |
9892 | ||
9893 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9894 | if (!qs14) { | |
9895 | return OFPERR_OFPBRC_BAD_LEN; | |
9896 | } | |
9897 | ||
9898 | len = ntohs(qs14->length); | |
6fd6ed71 | 9899 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9900 | return OFPERR_OFPBRC_BAD_LEN; |
9901 | } | |
9902 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9903 | ||
9904 | /* No properties yet defined, so ignore them for now. */ | |
9905 | ||
9906 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9907 | } | |
9908 | ||
64626975 SH |
9909 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9910 | * ofputil_queue_stats in 'qs'. | |
9911 | * | |
9912 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9913 | * message. Calling this function multiple times for a single 'msg' iterates | |
9914 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9915 | * null and not modify them between calls. | |
9916 | * | |
9917 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9918 | * otherwise a positive errno value. */ | |
9919 | int | |
9920 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9921 | { | |
9922 | enum ofperr error; | |
9923 | enum ofpraw raw; | |
9924 | ||
6fd6ed71 | 9925 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9926 | : ofpraw_pull(&raw, msg)); |
9927 | if (error) { | |
9928 | return error; | |
9929 | } | |
9930 | ||
6fd6ed71 | 9931 | if (!msg->size) { |
64626975 | 9932 | return EOF; |
1bb2cdbe BP |
9933 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9934 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9935 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9936 | const struct ofp13_queue_stats *qs13; | |
9937 | ||
9938 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9939 | if (!qs13) { | |
9940 | goto bad_len; | |
9941 | } | |
9942 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9943 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9944 | const struct ofp11_queue_stats *qs11; | |
9945 | ||
9946 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9947 | if (!qs11) { | |
2e1ae200 | 9948 | goto bad_len; |
64626975 SH |
9949 | } |
9950 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9951 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9952 | const struct ofp10_queue_stats *qs10; | |
9953 | ||
9954 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9955 | if (!qs10) { | |
2e1ae200 | 9956 | goto bad_len; |
64626975 SH |
9957 | } |
9958 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9959 | } else { | |
428b2edd | 9960 | OVS_NOT_REACHED(); |
64626975 | 9961 | } |
2e1ae200 JR |
9962 | |
9963 | bad_len: | |
437d0d22 | 9964 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9965 | "bytes at end", msg->size); |
2e1ae200 | 9966 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9967 | } |
9968 | ||
9969 | static void | |
9970 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9971 | struct ofp10_queue_stats *qs10) | |
9972 | { | |
4e022ec0 | 9973 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9974 | memset(qs10->pad, 0, sizeof qs10->pad); |
9975 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9976 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9977 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9978 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9979 | } |
9980 | ||
9981 | static void | |
9982 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9983 | struct ofp11_queue_stats *qs11) | |
9984 | { | |
9985 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9986 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9987 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9988 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9989 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9990 | } |
9991 | ||
2e1ae200 JR |
9992 | static void |
9993 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9994 | struct ofp13_queue_stats *qs13) | |
9995 | { | |
9996 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9997 | if (oqs->duration_sec != UINT32_MAX) { |
9998 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9999 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
10000 | } else { | |
b8266395 BP |
10001 | qs13->duration_sec = OVS_BE32_MAX; |
10002 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 10003 | } |
2e1ae200 JR |
10004 | } |
10005 | ||
1bb2cdbe BP |
10006 | static void |
10007 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
10008 | struct ofp14_queue_stats *qs14) | |
10009 | { | |
10010 | qs14->length = htons(sizeof *qs14); | |
10011 | memset(qs14->pad, 0, sizeof qs14->pad); | |
10012 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
10013 | } | |
10014 | ||
10015 | ||
64626975 SH |
10016 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
10017 | void | |
ca6ba700 | 10018 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
10019 | const struct ofputil_queue_stats *oqs) |
10020 | { | |
e28ac5cf | 10021 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
10022 | case OFP13_VERSION: { |
10023 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
10024 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
10025 | break; | |
10026 | } | |
10027 | ||
64626975 SH |
10028 | case OFP12_VERSION: |
10029 | case OFP11_VERSION: { | |
2e1ae200 | 10030 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
10031 | ofputil_queue_stats_to_ofp11(oqs, reply); |
10032 | break; | |
10033 | } | |
10034 | ||
10035 | case OFP10_VERSION: { | |
2e1ae200 | 10036 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
10037 | ofputil_queue_stats_to_ofp10(oqs, reply); |
10038 | break; | |
10039 | } | |
10040 | ||
42dccab5 | 10041 | case OFP14_VERSION: |
b79d45a1 BP |
10042 | case OFP15_VERSION: |
10043 | case OFP16_VERSION: { | |
1bb2cdbe BP |
10044 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
10045 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 10046 | break; |
1bb2cdbe | 10047 | } |
c37c0382 | 10048 | |
64626975 | 10049 | default: |
428b2edd | 10050 | OVS_NOT_REACHED(); |
64626975 SH |
10051 | } |
10052 | } | |
777af88d AC |
10053 | |
10054 | enum ofperr | |
10055 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
10056 | struct ofputil_bundle_ctrl_msg *msg) | |
10057 | { | |
0a2869d5 BP |
10058 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10059 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
10060 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL |
10061 | || raw == OFPRAW_ONFT13_BUNDLE_CONTROL); | |
777af88d | 10062 | |
0a2869d5 | 10063 | const struct ofp14_bundle_ctrl_msg *m = b.msg; |
777af88d AC |
10064 | msg->bundle_id = ntohl(m->bundle_id); |
10065 | msg->type = ntohs(m->type); | |
10066 | msg->flags = ntohs(m->flags); | |
10067 | ||
10068 | return 0; | |
10069 | } | |
10070 | ||
db5076ee JR |
10071 | struct ofpbuf * |
10072 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
10073 | struct ofputil_bundle_ctrl_msg *bc) | |
10074 | { | |
10075 | struct ofpbuf *request; | |
10076 | struct ofp14_bundle_ctrl_msg *m; | |
10077 | ||
10078 | switch (ofp_version) { | |
10079 | case OFP10_VERSION: | |
10080 | case OFP11_VERSION: | |
10081 | case OFP12_VERSION: | |
06d4d4b6 | 10082 | ovs_fatal(0, "bundles need OpenFlow 1.3 or later " |
db5076ee | 10083 | "(\'-O OpenFlow14\')"); |
06d4d4b6 | 10084 | case OFP13_VERSION: |
db5076ee JR |
10085 | case OFP14_VERSION: |
10086 | case OFP15_VERSION: | |
b79d45a1 | 10087 | case OFP16_VERSION: |
06d4d4b6 JR |
10088 | request = ofpraw_alloc(ofp_version == OFP13_VERSION |
10089 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
10090 | : OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
db5076ee JR |
10091 | m = ofpbuf_put_zeros(request, sizeof *m); |
10092 | ||
10093 | m->bundle_id = htonl(bc->bundle_id); | |
10094 | m->type = htons(bc->type); | |
10095 | m->flags = htons(bc->flags); | |
10096 | break; | |
10097 | default: | |
10098 | OVS_NOT_REACHED(); | |
10099 | } | |
10100 | ||
10101 | return request; | |
10102 | } | |
10103 | ||
777af88d AC |
10104 | struct ofpbuf * |
10105 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
10106 | struct ofputil_bundle_ctrl_msg *msg) | |
10107 | { | |
10108 | struct ofpbuf *buf; | |
10109 | struct ofp14_bundle_ctrl_msg *m; | |
10110 | ||
06d4d4b6 JR |
10111 | buf = ofpraw_alloc_reply(oh->version == OFP13_VERSION |
10112 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
10113 | : OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
777af88d AC |
10114 | m = ofpbuf_put_zeros(buf, sizeof *m); |
10115 | ||
10116 | m->bundle_id = htonl(msg->bundle_id); | |
10117 | m->type = htons(msg->type); | |
10118 | m->flags = htons(msg->flags); | |
10119 | ||
10120 | return buf; | |
10121 | } | |
10122 | ||
c25ce22d JR |
10123 | /* Return true for bundlable state change requests, false for other messages. |
10124 | */ | |
10125 | static bool | |
10126 | ofputil_is_bundlable(enum ofptype type) | |
10127 | { | |
10128 | switch (type) { | |
10129 | /* Minimum required by OpenFlow 1.4. */ | |
10130 | case OFPTYPE_PORT_MOD: | |
10131 | case OFPTYPE_FLOW_MOD: | |
25070e04 JR |
10132 | /* Other supported types. */ |
10133 | case OFPTYPE_GROUP_MOD: | |
6dd3c787 | 10134 | case OFPTYPE_PACKET_OUT: |
c25ce22d JR |
10135 | return true; |
10136 | ||
10137 | /* Nice to have later. */ | |
10138 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
c25ce22d JR |
10139 | case OFPTYPE_TABLE_MOD: |
10140 | case OFPTYPE_METER_MOD: | |
4e548ad9 | 10141 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
10142 | |
10143 | /* Not to be bundlable. */ | |
10144 | case OFPTYPE_ECHO_REQUEST: | |
10145 | case OFPTYPE_FEATURES_REQUEST: | |
10146 | case OFPTYPE_GET_CONFIG_REQUEST: | |
10147 | case OFPTYPE_SET_CONFIG: | |
10148 | case OFPTYPE_BARRIER_REQUEST: | |
10149 | case OFPTYPE_ROLE_REQUEST: | |
10150 | case OFPTYPE_ECHO_REPLY: | |
10151 | case OFPTYPE_SET_FLOW_FORMAT: | |
10152 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
10153 | case OFPTYPE_SET_CONTROLLER_ID: | |
10154 | case OFPTYPE_FLOW_AGE: | |
10155 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
10156 | case OFPTYPE_SET_ASYNC_CONFIG: | |
10157 | case OFPTYPE_GET_ASYNC_REQUEST: | |
10158 | case OFPTYPE_DESC_STATS_REQUEST: | |
10159 | case OFPTYPE_FLOW_STATS_REQUEST: | |
10160 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
10161 | case OFPTYPE_TABLE_STATS_REQUEST: | |
10162 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 10163 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
10164 | case OFPTYPE_PORT_STATS_REQUEST: |
10165 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
10166 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
10167 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
10168 | case OFPTYPE_METER_STATS_REQUEST: | |
10169 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
10170 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
10171 | case OFPTYPE_GROUP_STATS_REQUEST: | |
10172 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
10173 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
10174 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
10175 | case OFPTYPE_BUNDLE_CONTROL: | |
10176 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
10177 | case OFPTYPE_HELLO: | |
10178 | case OFPTYPE_ERROR: | |
10179 | case OFPTYPE_FEATURES_REPLY: | |
10180 | case OFPTYPE_GET_CONFIG_REPLY: | |
10181 | case OFPTYPE_PACKET_IN: | |
10182 | case OFPTYPE_FLOW_REMOVED: | |
10183 | case OFPTYPE_PORT_STATUS: | |
10184 | case OFPTYPE_BARRIER_REPLY: | |
10185 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
10186 | case OFPTYPE_DESC_STATS_REPLY: | |
10187 | case OFPTYPE_FLOW_STATS_REPLY: | |
10188 | case OFPTYPE_QUEUE_STATS_REPLY: | |
10189 | case OFPTYPE_PORT_STATS_REPLY: | |
10190 | case OFPTYPE_TABLE_STATS_REPLY: | |
10191 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
10192 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
10193 | case OFPTYPE_ROLE_REPLY: | |
10194 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
10195 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
10196 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
10197 | case OFPTYPE_GET_ASYNC_REPLY: | |
10198 | case OFPTYPE_GROUP_STATS_REPLY: | |
10199 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
10200 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
10201 | case OFPTYPE_METER_STATS_REPLY: | |
10202 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
10203 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
10204 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 10205 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 10206 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 10207 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 10208 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 ML |
10209 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
10210 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
77ab5fd2 | 10211 | case OFPTYPE_NXT_RESUME: |
fb8f22c1 BY |
10212 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
10213 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: | |
10214 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
10215 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
2a7c4805 | 10216 | case OFPTYPE_CT_FLUSH_ZONE: |
c25ce22d JR |
10217 | break; |
10218 | } | |
10219 | ||
10220 | return false; | |
10221 | } | |
10222 | ||
777af88d AC |
10223 | enum ofperr |
10224 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 | 10225 | struct ofputil_bundle_add_msg *msg, |
0a2869d5 | 10226 | enum ofptype *typep) |
777af88d | 10227 | { |
0a2869d5 BP |
10228 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10229 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
10230 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE |
10231 | || raw == OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE); | |
777af88d | 10232 | |
0a2869d5 | 10233 | const struct ofp14_bundle_ctrl_msg *m = ofpbuf_pull(&b, sizeof *m); |
777af88d AC |
10234 | msg->bundle_id = ntohl(m->bundle_id); |
10235 | msg->flags = ntohs(m->flags); | |
10236 | ||
6fd6ed71 | 10237 | msg->msg = b.data; |
46be7132 | 10238 | if (msg->msg->version != oh->version) { |
bc02606a | 10239 | return OFPERR_OFPBFC_BAD_VERSION; |
46be7132 | 10240 | } |
0a2869d5 | 10241 | size_t inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 10242 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
10243 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
10244 | } | |
be6f6393 JR |
10245 | if (msg->msg->xid != oh->xid) { |
10246 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
10247 | } | |
777af88d | 10248 | |
c25ce22d | 10249 | /* Reject unbundlable messages. */ |
0a2869d5 BP |
10250 | enum ofptype type; |
10251 | enum ofperr error = ofptype_decode(&type, msg->msg); | |
c25ce22d JR |
10252 | if (error) { |
10253 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
10254 | "message is unparsable (%s)", ofperr_get_name(error)); | |
10255 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
10256 | } | |
10257 | ||
0a2869d5 | 10258 | if (!ofputil_is_bundlable(type)) { |
44648b0f | 10259 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
0a2869d5 | 10260 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type)); |
c25ce22d JR |
10261 | return OFPERR_OFPBFC_MSG_UNSUP; |
10262 | } | |
0a2869d5 BP |
10263 | if (typep) { |
10264 | *typep = type; | |
10265 | } | |
c25ce22d | 10266 | |
777af88d AC |
10267 | return 0; |
10268 | } | |
10269 | ||
10270 | struct ofpbuf * | |
10271 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
10272 | struct ofputil_bundle_add_msg *msg) | |
10273 | { | |
10274 | struct ofpbuf *request; | |
10275 | struct ofp14_bundle_ctrl_msg *m; | |
10276 | ||
7b3dca89 | 10277 | /* Must use the same xid as the embedded message. */ |
06d4d4b6 JR |
10278 | request = ofpraw_alloc_xid(ofp_version == OFP13_VERSION |
10279 | ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE | |
10280 | : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
bcf899f7 | 10281 | msg->msg->xid, ntohs(msg->msg->length)); |
777af88d AC |
10282 | m = ofpbuf_put_zeros(request, sizeof *m); |
10283 | ||
10284 | m->bundle_id = htonl(msg->bundle_id); | |
10285 | m->flags = htons(msg->flags); | |
10286 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
10287 | ||
bcf899f7 | 10288 | ofpmsg_update_length(request); |
777af88d AC |
10289 | return request; |
10290 | } | |
6159c531 JG |
10291 | |
10292 | static void | |
4e548ad9 | 10293 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 10294 | { |
4e548ad9 | 10295 | struct ofputil_tlv_map *map; |
6159c531 JG |
10296 | |
10297 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 10298 | struct nx_tlv_map *nx_map; |
6159c531 JG |
10299 | |
10300 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
10301 | nx_map->option_class = htons(map->option_class); | |
10302 | nx_map->option_type = map->option_type; | |
10303 | nx_map->option_len = map->option_len; | |
10304 | nx_map->index = htons(map->index); | |
10305 | } | |
10306 | } | |
10307 | ||
10308 | struct ofpbuf * | |
4e548ad9 ML |
10309 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
10310 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
10311 | { |
10312 | struct ofpbuf *b; | |
4e548ad9 | 10313 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 10314 | |
4e548ad9 ML |
10315 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
10316 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
10317 | nx_ttm->command = htons(ttm->command); | |
10318 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
10319 | |
10320 | return b; | |
10321 | } | |
10322 | ||
10323 | static enum ofperr | |
4e548ad9 | 10324 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 10325 | struct ovs_list *mappings) |
6159c531 | 10326 | { |
417e7e66 | 10327 | ovs_list_init(mappings); |
6159c531 JG |
10328 | |
10329 | while (msg->size) { | |
4e548ad9 ML |
10330 | struct nx_tlv_map *nx_map; |
10331 | struct ofputil_tlv_map *map; | |
6159c531 JG |
10332 | |
10333 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
10334 | map = xmalloc(sizeof *map); | |
417e7e66 | 10335 | ovs_list_push_back(mappings, &map->list_node); |
6159c531 JG |
10336 | |
10337 | map->option_class = ntohs(nx_map->option_class); | |
10338 | map->option_type = nx_map->option_type; | |
10339 | ||
10340 | map->option_len = nx_map->option_len; | |
4e548ad9 | 10341 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 10342 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10343 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 10344 | map->option_len); |
4e548ad9 ML |
10345 | ofputil_uninit_tlv_table(mappings); |
10346 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
10347 | } |
10348 | ||
10349 | map->index = ntohs(nx_map->index); | |
dfe5044c | 10350 | if (map->index >= max_fields) { |
6159c531 | 10351 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10352 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 10353 | map->index, max_fields - 1); |
4e548ad9 ML |
10354 | ofputil_uninit_tlv_table(mappings); |
10355 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
10356 | } |
10357 | } | |
10358 | ||
10359 | return 0; | |
10360 | } | |
10361 | ||
10362 | enum ofperr | |
4e548ad9 ML |
10363 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
10364 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 | 10365 | { |
0a2869d5 | 10366 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10367 | ofpraw_pull_assert(&msg); |
10368 | ||
0a2869d5 | 10369 | struct nx_tlv_table_mod *nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
4e548ad9 ML |
10370 | ttm->command = ntohs(nx_ttm->command); |
10371 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 10372 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
10373 | "tlv table mod command (%u) is out of range", |
10374 | ttm->command); | |
10375 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
10376 | } |
10377 | ||
4e548ad9 ML |
10378 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
10379 | &ttm->mappings); | |
6159c531 JG |
10380 | } |
10381 | ||
10382 | struct ofpbuf * | |
4e548ad9 ML |
10383 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
10384 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
10385 | { |
10386 | struct ofpbuf *b; | |
4e548ad9 | 10387 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 10388 | |
4e548ad9 ML |
10389 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
10390 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
10391 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
10392 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 10393 | |
4e548ad9 | 10394 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
10395 | |
10396 | return b; | |
10397 | } | |
10398 | ||
4e548ad9 | 10399 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
10400 | * if successful, otherwise an ofperr. |
10401 | * | |
4e548ad9 ML |
10402 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
10403 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 10404 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 10405 | enum ofperr |
4e548ad9 ML |
10406 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
10407 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 | 10408 | { |
0a2869d5 | 10409 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10410 | ofpraw_pull_assert(&msg); |
10411 | ||
0a2869d5 | 10412 | struct nx_tlv_table_reply *nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
4e548ad9 ML |
10413 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); |
10414 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 10415 | |
4e548ad9 | 10416 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
10417 | } |
10418 | ||
10419 | void | |
4e548ad9 | 10420 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 10421 | { |
4e548ad9 | 10422 | struct ofputil_tlv_map *map; |
6159c531 JG |
10423 | |
10424 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
10425 | free(map); | |
10426 | } | |
10427 | } | |
98090482 | 10428 | |
2da7974c BP |
10429 | const char * |
10430 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
10431 | { | |
10432 | switch (type) { | |
10433 | case OAM_PACKET_IN: return "PACKET_IN"; | |
10434 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
10435 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
10436 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
10437 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
10438 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
10439 | ||
10440 | case OAM_N_TYPES: | |
10441 | default: | |
10442 | OVS_NOT_REACHED(); | |
10443 | } | |
10444 | } | |
10445 | ||
8fd0bb60 BP |
10446 | struct ofp14_async_prop { |
10447 | uint64_t prop_type; | |
10448 | enum ofputil_async_msg_type oam; | |
10449 | bool master; | |
10450 | uint32_t allowed10, allowed14; | |
10451 | }; | |
10452 | ||
10453 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
10454 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
10455 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
10456 | ||
10457 | static const struct ofp14_async_prop async_props[] = { | |
10458 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
10459 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
10460 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
10461 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
10462 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
10463 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
10464 | }; | |
10465 | ||
10466 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
10467 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
10468 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
10469 | ||
10470 | static const struct ofp14_async_prop * | |
10471 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
10472 | { | |
10473 | FOR_EACH_ASYNC_PROP (ap) { | |
10474 | if (prop_type == ap->prop_type) { | |
10475 | return ap; | |
10476 | } | |
10477 | } | |
10478 | return NULL; | |
10479 | } | |
10480 | ||
10481 | static const struct ofp14_async_prop * | |
10482 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
10483 | bool master) | |
10484 | { | |
10485 | FOR_EACH_ASYNC_PROP (ap) { | |
10486 | if (ap->oam == oam && ap->master == master) { | |
10487 | return ap; | |
10488 | } | |
10489 | } | |
10490 | return NULL; | |
10491 | } | |
10492 | ||
10493 | static uint32_t | |
10494 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
10495 | enum ofp_version version) | |
10496 | { | |
10497 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
10498 | } | |
10499 | ||
10500 | static ovs_be32 | |
10501 | encode_async_mask(const struct ofputil_async_cfg *src, | |
10502 | const struct ofp14_async_prop *ap, | |
10503 | enum ofp_version version) | |
10504 | { | |
10505 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
10506 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
10507 | } | |
10508 | ||
10509 | static enum ofperr | |
10510 | decode_async_mask(ovs_be32 src, | |
10511 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
10512 | bool loose, struct ofputil_async_cfg *dst) | |
10513 | { | |
10514 | uint32_t mask = ntohl(src); | |
10515 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
10516 | if (mask & ~allowed) { | |
10517 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
10518 | "bad value %#x for %s (allowed mask %#x)", | |
10519 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
10520 | allowed); | |
10521 | mask &= allowed; | |
10522 | if (!loose) { | |
10523 | return OFPERR_OFPACFC_INVALID; | |
10524 | } | |
10525 | } | |
10526 | ||
9bfe9334 BP |
10527 | if (ap->oam == OAM_PACKET_IN) { |
10528 | if (mask & (1u << OFPR_NO_MATCH)) { | |
10529 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
10530 | if (version < OFP13_VERSION) { | |
10531 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
10532 | } | |
10533 | } | |
10534 | } | |
10535 | ||
8fd0bb60 BP |
10536 | uint32_t *array = ap->master ? dst->master : dst->slave; |
10537 | array[ap->oam] = mask; | |
10538 | return 0; | |
10539 | } | |
10540 | ||
10541 | static enum ofperr | |
10542 | parse_async_tlv(const struct ofpbuf *property, | |
10543 | const struct ofp14_async_prop *ap, | |
10544 | struct ofputil_async_cfg *ac, | |
10545 | enum ofp_version version, bool loose) | |
10546 | { | |
10547 | enum ofperr error; | |
10548 | ovs_be32 mask; | |
10549 | ||
10550 | error = ofpprop_parse_be32(property, &mask); | |
10551 | if (error) { | |
10552 | return error; | |
10553 | } | |
10554 | ||
10555 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10556 | /* For experimenter properties, whether a property is for the master or | |
10557 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
10558 | * ofp_prop_experimenter. Check that these are consistent. */ | |
10559 | const struct ofp_prop_experimenter *ope = property->data; | |
10560 | bool should_be_master = ope->type == htons(0xffff); | |
10561 | if (should_be_master != ap->master) { | |
10562 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
10563 | "indicates %s role but exp_type %"PRIu32" indicates " | |
10564 | "%s role", | |
10565 | ntohs(ope->type), | |
10566 | should_be_master ? "master" : "slave", | |
10567 | ntohl(ope->exp_type), | |
10568 | ap->master ? "master" : "slave"); | |
10569 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
10570 | } | |
10571 | } | |
10572 | ||
10573 | return decode_async_mask(mask, ap, version, loose, ac); | |
10574 | } | |
10575 | ||
10576 | static void | |
10577 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
10578 | enum ofputil_async_msg_type oam, | |
10579 | enum ofp_version version, | |
10580 | struct ofputil_async_cfg *dst) | |
10581 | { | |
10582 | for (int i = 0; i < 2; i++) { | |
10583 | bool master = i == 0; | |
10584 | const struct ofp14_async_prop *ap | |
10585 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10586 | decode_async_mask(masks[i], ap, version, true, dst); | |
10587 | } | |
10588 | } | |
10589 | ||
98090482 | 10590 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 10591 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 10592 | * |
5876b4db BP |
10593 | * Some versions of the "set async config" request change only some of the |
10594 | * settings and leave the others alone. This function uses 'basis' as the | |
10595 | * initial state for decoding these. Other versions of the request change all | |
10596 | * the settings; this function ignores 'basis' when decoding these. | |
10597 | * | |
98090482 NR |
10598 | * If 'loose' is true, this function ignores properties and values that it does |
10599 | * not understand, as a controller would want to do when interpreting | |
10600 | * capabilities provided by a switch. If 'loose' is false, this function | |
10601 | * treats unknown properties and values as an error, as a switch would want to | |
10602 | * do when interpreting a configuration request made by a controller. | |
10603 | * | |
d18cc1ee AA |
10604 | * Returns 0 if successful, otherwise an OFPERR_* value. |
10605 | * | |
10606 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
10607 | * the valid range of mask. | |
10608 | * | |
10609 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
10610 | * supported.*/ | |
98090482 | 10611 | enum ofperr |
a930d4c5 | 10612 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 10613 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 10614 | struct ofputil_async_cfg *ac) |
98090482 | 10615 | { |
0a2869d5 BP |
10616 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10617 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
98090482 NR |
10618 | |
10619 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
10620 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
10621 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
10622 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
10623 | ||
5876b4db | 10624 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
10625 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
10626 | oh->version, ac); | |
10627 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
10628 | oh->version, ac); | |
10629 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
10630 | oh->version, ac); | |
98090482 | 10631 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
10632 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
10633 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 10634 | *ac = *basis; |
98090482 | 10635 | while (b.size > 0) { |
98090482 NR |
10636 | struct ofpbuf property; |
10637 | enum ofperr error; | |
34a543e3 | 10638 | uint64_t type; |
98090482 | 10639 | |
34a543e3 | 10640 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
10641 | if (error) { |
10642 | return error; | |
10643 | } | |
10644 | ||
8fd0bb60 BP |
10645 | const struct ofp14_async_prop *ap |
10646 | = get_ofp14_async_config_prop_by_prop_type(type); | |
10647 | error = (ap | |
10648 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
10649 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 10650 | if (error) { |
8fd0bb60 BP |
10651 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
10652 | * knows why, it's OpenFlow. */ | |
10653 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
10654 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 10655 | } |
98090482 NR |
10656 | return error; |
10657 | } | |
10658 | } | |
10659 | } else { | |
10660 | return OFPERR_OFPBRC_BAD_VERSION; | |
10661 | } | |
10662 | return 0; | |
10663 | } | |
10664 | ||
8fd0bb60 BP |
10665 | static void |
10666 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
10667 | enum ofputil_async_msg_type oam, | |
10668 | enum ofp_version version, | |
10669 | ovs_be32 masks[2]) | |
98090482 | 10670 | { |
8fd0bb60 BP |
10671 | for (int i = 0; i < 2; i++) { |
10672 | bool master = i == 0; | |
10673 | const struct ofp14_async_prop *ap | |
10674 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10675 | masks[i] = encode_async_mask(ac, ap, version); | |
10676 | } | |
10677 | } | |
98090482 | 10678 | |
8fd0bb60 BP |
10679 | static void |
10680 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
10681 | struct ofpbuf *buf, bool tlv, | |
10682 | enum ofp_version version, uint32_t oams) | |
10683 | { | |
10684 | if (!tlv) { | |
10685 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
10686 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
10687 | msg->packet_in_mask); | |
10688 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
10689 | msg->port_status_mask); | |
10690 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
10691 | msg->flow_removed_mask); | |
10692 | } else { | |
10693 | FOR_EACH_ASYNC_PROP (ap) { | |
10694 | if (oams & (1u << ap->oam)) { | |
10695 | size_t ofs = buf->size; | |
10696 | ofpprop_put_be32(buf, ap->prop_type, | |
10697 | encode_async_mask(ac, ap, version)); | |
10698 | ||
10699 | /* For experimenter properties, we need to use type 0xfffe for | |
10700 | * master and 0xffff for slaves. */ | |
10701 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10702 | struct ofp_prop_experimenter *ope | |
10703 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
10704 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
10705 | } | |
10706 | } | |
98090482 | 10707 | } |
98090482 | 10708 | } |
98090482 NR |
10709 | } |
10710 | ||
8fd0bb60 BP |
10711 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
10712 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 10713 | struct ofpbuf * |
af7bc161 BP |
10714 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
10715 | const struct ofputil_async_cfg *ac) | |
98090482 NR |
10716 | { |
10717 | struct ofpbuf *buf; | |
98090482 | 10718 | |
8fd0bb60 BP |
10719 | enum ofpraw raw = (oh->version < OFP14_VERSION |
10720 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
10721 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
10722 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
10723 | ofputil_put_async_config__(ac, reply, | |
10724 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
10725 | oh->version, UINT32_MAX); | |
10726 | return reply; | |
98090482 NR |
10727 | |
10728 | return buf; | |
10729 | } | |
a930d4c5 | 10730 | |
af7bc161 BP |
10731 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
10732 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
10733 | * | |
10734 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
10735 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
10736 | * messages, so more messages than requested may be configured. OF1.0 through | |
10737 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
10738 | * any extensions then this function encodes an Open vSwitch extension message | |
10739 | * that does support configuring OVS extension OAM_*. */ | |
10740 | struct ofpbuf * | |
10741 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
10742 | uint32_t oams, enum ofp_version ofp_version) | |
10743 | { | |
10744 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
10745 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
10746 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
10747 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
10748 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
10749 | ofputil_put_async_config__(ac, request, | |
10750 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
10751 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
10752 | ofp_version, oams); | |
10753 | return request; | |
10754 | } | |
10755 | ||
a930d4c5 BP |
10756 | struct ofputil_async_cfg |
10757 | ofputil_async_cfg_default(enum ofp_version version) | |
10758 | { | |
9bfe9334 BP |
10759 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
10760 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
10761 | * introduced in OF1.0, breaking it into more specific categories. When we | |
10762 | * encode these for earlier OpenFlow versions, we translate them into | |
10763 | * OFPR_ACTION. */ | |
10764 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
10765 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
10766 | if (version <= OFP12_VERSION) { | |
10767 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
10768 | } | |
10769 | ||
a930d4c5 | 10770 | return (struct ofputil_async_cfg) { |
9bfe9334 | 10771 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
10772 | |
10773 | .master[OAM_FLOW_REMOVED] | |
10774 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
10775 | ||
10776 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
10777 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
10778 | }; | |
10779 | } | |
6c6eedc5 SJ |
10780 | |
10781 | static void | |
10782 | ofputil_put_ofp14_table_desc(const struct ofputil_table_desc *td, | |
10783 | struct ofpbuf *b, enum ofp_version version) | |
10784 | { | |
10785 | struct ofp14_table_desc *otd; | |
10786 | struct ofp14_table_mod_prop_vacancy *otv; | |
10787 | size_t start_otd; | |
10788 | ||
10789 | start_otd = b->size; | |
10790 | ofpbuf_put_zeros(b, sizeof *otd); | |
10791 | ||
10792 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, td->eviction_flags); | |
10793 | ||
10794 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
10795 | otv->type = htons(OFPTMPT14_VACANCY); | |
10796 | otv->length = htons(sizeof *otv); | |
10797 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
10798 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
10799 | otv->vacancy = td->table_vacancy.vacancy; | |
10800 | ||
10801 | otd = ofpbuf_at_assert(b, start_otd, sizeof *otd); | |
10802 | otd->length = htons(b->size - start_otd); | |
10803 | otd->table_id = td->table_id; | |
10804 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
10805 | td->eviction, td->vacancy, | |
10806 | version); | |
10807 | } | |
10808 | ||
10809 | /* Converts the abstract form of a "table status" message in '*ts' into an | |
10810 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
10811 | * a buffer owned by the caller. */ | |
10812 | struct ofpbuf * | |
10813 | ofputil_encode_table_status(const struct ofputil_table_status *ts, | |
10814 | enum ofputil_protocol protocol) | |
10815 | { | |
10816 | enum ofp_version version; | |
10817 | struct ofpbuf *b; | |
10818 | ||
10819 | version = ofputil_protocol_to_ofp_version(protocol); | |
10820 | if (version >= OFP14_VERSION) { | |
10821 | enum ofpraw raw; | |
10822 | struct ofp14_table_status *ots; | |
10823 | ||
10824 | raw = OFPRAW_OFPT14_TABLE_STATUS; | |
10825 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
10826 | ots = ofpbuf_put_zeros(b, sizeof *ots); | |
10827 | ots->reason = ts->reason; | |
10828 | ofputil_put_ofp14_table_desc(&ts->desc, b, version); | |
10829 | ofpmsg_update_length(b); | |
10830 | return b; | |
10831 | } else { | |
10832 | return NULL; | |
10833 | } | |
10834 | } | |
10835 | ||
10836 | /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form | |
10837 | * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
10838 | enum ofperr | |
10839 | ofputil_decode_table_status(const struct ofp_header *oh, | |
10840 | struct ofputil_table_status *ts) | |
10841 | { | |
10842 | const struct ofp14_table_status *ots; | |
10843 | struct ofpbuf b; | |
10844 | enum ofperr error; | |
10845 | enum ofpraw raw; | |
10846 | ||
10847 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
10848 | raw = ofpraw_pull_assert(&b); | |
10849 | ots = ofpbuf_pull(&b, sizeof *ots); | |
10850 | ||
10851 | if (raw == OFPRAW_OFPT14_TABLE_STATUS) { | |
10852 | if (ots->reason != OFPTR_VACANCY_DOWN | |
10853 | && ots->reason != OFPTR_VACANCY_UP) { | |
10854 | return OFPERR_OFPBPC_BAD_VALUE; | |
10855 | } | |
10856 | ts->reason = ots->reason; | |
10857 | ||
10858 | error = ofputil_decode_table_desc(&b, &ts->desc, oh->version); | |
10859 | return error; | |
10860 | } else { | |
10861 | return OFPERR_OFPBRC_BAD_VERSION; | |
10862 | } | |
10863 | ||
10864 | return 0; | |
10865 | } |