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fa37b408 | 1 | /* |
6a5490c6 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 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 | { |
847b8b02 | 104 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 36); |
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)) { |
26720e24 | 144 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 145 | } |
eec25dc1 | 146 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 147 | wc->masks.vlan_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. */ | |
81a76618 BP |
185 | match->flow.vlan_tci = htons(0); |
186 | match->wc.masks.vlan_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); |
81a76618 | 195 | match->flow.vlan_tci = tci & match->wc.masks.vlan_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; | |
244 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 245 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
246 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
247 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
248 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 249 | } else { |
81a76618 | 250 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 251 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 252 | } else { |
81a76618 | 253 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
254 | } |
255 | ||
81a76618 | 256 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 257 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 258 | } else { |
81a76618 | 259 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
260 | } |
261 | } | |
262 | ||
263 | /* Compose most of the match structure. */ | |
81a76618 | 264 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 265 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
266 | ofmatch->dl_src = match->flow.dl_src; |
267 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
268 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
269 | ofmatch->nw_src = match->flow.nw_src; | |
270 | ofmatch->nw_dst = match->flow.nw_dst; | |
271 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
272 | ofmatch->nw_proto = match->flow.nw_proto; | |
273 | ofmatch->tp_src = match->flow.tp_src; | |
274 | ofmatch->tp_dst = match->flow.tp_dst; | |
275 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
276 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
277 | } |
278 | ||
aa319503 | 279 | enum ofperr |
8d8ab6c2 JG |
280 | ofputil_pull_ofp11_match(struct ofpbuf *buf, const struct tun_table *tun_table, |
281 | struct match *match, uint16_t *padded_match_len) | |
aa319503 | 282 | { |
6fd6ed71 | 283 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 284 | uint16_t match_len; |
aa319503 | 285 | |
6fd6ed71 | 286 | if (buf->size < sizeof *omh) { |
aa319503 BP |
287 | return OFPERR_OFPBMC_BAD_LEN; |
288 | } | |
289 | ||
36a16881 SH |
290 | match_len = ntohs(omh->length); |
291 | ||
aa319503 | 292 | switch (ntohs(omh->type)) { |
36a16881 SH |
293 | case OFPMT_STANDARD: { |
294 | struct ofp11_match *om; | |
295 | ||
6fd6ed71 | 296 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
297 | return OFPERR_OFPBMC_BAD_LEN; |
298 | } | |
299 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
300 | if (padded_match_len) { |
301 | *padded_match_len = match_len; | |
302 | } | |
81a76618 | 303 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
304 | } |
305 | ||
306 | case OFPMT_OXM: | |
307 | if (padded_match_len) { | |
308 | *padded_match_len = ROUND_UP(match_len, 8); | |
309 | } | |
8d8ab6c2 | 310 | return oxm_pull_match(buf, tun_table, match); |
aa319503 BP |
311 | |
312 | default: | |
313 | return OFPERR_OFPBMC_BAD_TYPE; | |
314 | } | |
315 | } | |
316 | ||
3f0f48cf YT |
317 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
318 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 319 | enum ofperr |
81a76618 BP |
320 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
321 | struct match *match) | |
410698cf | 322 | { |
81a76618 | 323 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 324 | bool ipv4, arp, rarp; |
410698cf | 325 | |
81a76618 | 326 | match_init_catchall(match); |
410698cf BP |
327 | |
328 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 329 | ofp_port_t ofp_port; |
410698cf BP |
330 | enum ofperr error; |
331 | ||
81a76618 | 332 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
333 | if (error) { |
334 | return OFPERR_OFPBMC_BAD_VALUE; | |
335 | } | |
81a76618 | 336 | match_set_in_port(match, ofp_port); |
410698cf BP |
337 | } |
338 | ||
74ff3298 JR |
339 | match_set_dl_src_masked(match, ofmatch->dl_src, |
340 | eth_addr_invert(ofmatch->dl_src_mask)); | |
341 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
342 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
343 | |
344 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 345 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 346 | /* Match only packets without a VLAN tag. */ |
81a76618 | 347 | match->flow.vlan_tci = htons(0); |
b8266395 | 348 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 349 | } else { |
81a76618 | 350 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 351 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
352 | match->flow.vlan_tci = htons(VLAN_CFI); |
353 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
354 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 355 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
356 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
357 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
358 | } else { |
359 | /* Invalid VID. */ | |
360 | return OFPERR_OFPBMC_BAD_VALUE; | |
361 | } | |
362 | ||
363 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
364 | if (ofmatch->dl_vlan_pcp <= 7) { |
365 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
366 | << VLAN_PCP_SHIFT); | |
367 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
368 | } else { |
369 | /* Invalid PCP. */ | |
370 | return OFPERR_OFPBMC_BAD_VALUE; | |
371 | } | |
372 | } | |
373 | } | |
374 | } | |
375 | ||
376 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
377 | match_set_dl_type(match, |
378 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
379 | } |
380 | ||
81a76618 BP |
381 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
382 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 383 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
384 | |
385 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 386 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
387 | /* Invalid TOS. */ |
388 | return OFPERR_OFPBMC_BAD_VALUE; | |
389 | } | |
390 | ||
81a76618 | 391 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
392 | } |
393 | ||
8087f5ff | 394 | if (ipv4 || arp || rarp) { |
410698cf | 395 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 396 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 397 | } |
81a76618 BP |
398 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
399 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
400 | } |
401 | ||
402 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
403 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 404 | switch (match->flow.nw_proto) { |
410698cf BP |
405 | case IPPROTO_ICMP: |
406 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
407 | * | |
408 | * The tp_src and tp_dst fields will be ignored unless the | |
409 | * network protocol specified is as TCP, UDP or SCTP. | |
410 | * | |
411 | * but I'm pretty sure we should support ICMP too, otherwise | |
412 | * that's a regression from OF1.0. */ | |
413 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 414 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 415 | if (icmp_type < 0x100) { |
81a76618 | 416 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
417 | } else { |
418 | return OFPERR_OFPBMC_BAD_FIELD; | |
419 | } | |
420 | } | |
421 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 422 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 423 | if (icmp_code < 0x100) { |
81a76618 | 424 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
425 | } else { |
426 | return OFPERR_OFPBMC_BAD_FIELD; | |
427 | } | |
428 | } | |
429 | break; | |
430 | ||
431 | case IPPROTO_TCP: | |
432 | case IPPROTO_UDP: | |
0d56eaf2 | 433 | case IPPROTO_SCTP: |
410698cf | 434 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 435 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
436 | } |
437 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 438 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
439 | } |
440 | break; | |
441 | ||
410698cf BP |
442 | default: |
443 | /* OF1.1 says explicitly to ignore this. */ | |
444 | break; | |
445 | } | |
446 | } | |
447 | ||
b02475c5 | 448 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 449 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 450 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
451 | } |
452 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 453 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
454 | } |
455 | } | |
456 | ||
81a76618 BP |
457 | match_set_metadata_masked(match, ofmatch->metadata, |
458 | ~ofmatch->metadata_mask); | |
410698cf BP |
459 | |
460 | return 0; | |
461 | } | |
462 | ||
81a76618 | 463 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 464 | void |
81a76618 BP |
465 | ofputil_match_to_ofp11_match(const struct match *match, |
466 | struct ofp11_match *ofmatch) | |
410698cf BP |
467 | { |
468 | uint32_t wc = 0; | |
410698cf | 469 | |
81a76618 BP |
470 | memset(ofmatch, 0, sizeof *ofmatch); |
471 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
472 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 473 | |
4e022ec0 | 474 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
475 | wc |= OFPFW11_IN_PORT; |
476 | } else { | |
4e022ec0 | 477 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
478 | } |
479 | ||
74ff3298 JR |
480 | ofmatch->dl_src = match->flow.dl_src; |
481 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
482 | ofmatch->dl_dst = match->flow.dl_dst; | |
483 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 484 | |
81a76618 | 485 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 486 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
487 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
488 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
489 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
490 | wc |= OFPFW11_DL_VLAN_PCP; |
491 | } else { | |
81a76618 BP |
492 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
493 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 494 | } else { |
81a76618 | 495 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
496 | } |
497 | ||
81a76618 | 498 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
499 | wc |= OFPFW11_DL_VLAN_PCP; |
500 | } else { | |
81a76618 | 501 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
502 | } |
503 | } | |
504 | ||
81a76618 | 505 | if (!match->wc.masks.dl_type) { |
410698cf BP |
506 | wc |= OFPFW11_DL_TYPE; |
507 | } else { | |
81a76618 | 508 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
509 | } |
510 | ||
81a76618 | 511 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
512 | wc |= OFPFW11_NW_TOS; |
513 | } else { | |
81a76618 | 514 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
515 | } |
516 | ||
81a76618 | 517 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
518 | wc |= OFPFW11_NW_PROTO; |
519 | } else { | |
81a76618 | 520 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
521 | } |
522 | ||
81a76618 BP |
523 | ofmatch->nw_src = match->flow.nw_src; |
524 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
525 | ofmatch->nw_dst = match->flow.nw_dst; | |
526 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 527 | |
81a76618 | 528 | if (!match->wc.masks.tp_src) { |
410698cf BP |
529 | wc |= OFPFW11_TP_SRC; |
530 | } else { | |
81a76618 | 531 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
532 | } |
533 | ||
81a76618 | 534 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
535 | wc |= OFPFW11_TP_DST; |
536 | } else { | |
81a76618 | 537 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
538 | } |
539 | ||
8bfd0fda | 540 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
541 | wc |= OFPFW11_MPLS_LABEL; |
542 | } else { | |
8bfd0fda BP |
543 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
544 | match->flow.mpls_lse[0])); | |
097d4939 JR |
545 | } |
546 | ||
8bfd0fda | 547 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
548 | wc |= OFPFW11_MPLS_TC; |
549 | } else { | |
8bfd0fda | 550 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 551 | } |
410698cf | 552 | |
81a76618 BP |
553 | ofmatch->metadata = match->flow.metadata; |
554 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 555 | |
81a76618 | 556 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
557 | } |
558 | ||
75fa58f8 BP |
559 | /* Returns the "typical" length of a match for 'protocol', for use in |
560 | * estimating space to preallocate. */ | |
561 | int | |
562 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
563 | { | |
564 | switch (protocol) { | |
565 | case OFPUTIL_P_OF10_STD: | |
566 | case OFPUTIL_P_OF10_STD_TID: | |
567 | return sizeof(struct ofp10_match); | |
568 | ||
569 | case OFPUTIL_P_OF10_NXM: | |
570 | case OFPUTIL_P_OF10_NXM_TID: | |
571 | return NXM_TYPICAL_LEN; | |
572 | ||
573 | case OFPUTIL_P_OF11_STD: | |
574 | return sizeof(struct ofp11_match); | |
575 | ||
576 | case OFPUTIL_P_OF12_OXM: | |
577 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 578 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 579 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 580 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 BP |
581 | return NXM_TYPICAL_LEN; |
582 | ||
583 | default: | |
428b2edd | 584 | OVS_NOT_REACHED(); |
75fa58f8 BP |
585 | } |
586 | } | |
587 | ||
588 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
589 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
590 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
591 | * in OpenFlow 1.1 or later. | |
592 | * | |
593 | * This function can cause 'b''s data to be reallocated. | |
594 | * | |
595 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
596 | * returns zero. */ | |
597 | int | |
598 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
599 | enum ofputil_protocol protocol) | |
600 | { | |
601 | switch (protocol) { | |
602 | case OFPUTIL_P_OF10_STD: | |
603 | case OFPUTIL_P_OF10_STD_TID: | |
604 | case OFPUTIL_P_OF10_NXM: | |
605 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 606 | OVS_NOT_REACHED(); |
75fa58f8 BP |
607 | |
608 | case OFPUTIL_P_OF11_STD: { | |
609 | struct ofp11_match *om; | |
610 | ||
611 | /* Make sure that no padding is needed. */ | |
612 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
613 | ||
614 | om = ofpbuf_put_uninit(b, sizeof *om); | |
615 | ofputil_match_to_ofp11_match(match, om); | |
616 | return sizeof *om; | |
617 | } | |
618 | ||
619 | case OFPUTIL_P_OF12_OXM: | |
620 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 621 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 622 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 623 | case OFPUTIL_P_OF16_OXM: |
9d84066c BP |
624 | return oxm_put_match(b, match, |
625 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
626 | } |
627 | ||
428b2edd | 628 | OVS_NOT_REACHED(); |
75fa58f8 BP |
629 | } |
630 | ||
36956a7d | 631 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
632 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
633 | * structure. */ | |
36956a7d BP |
634 | ovs_be16 |
635 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
636 | { | |
637 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
638 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
639 | : flow_dl_type); | |
640 | } | |
641 | ||
eec25dc1 | 642 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
643 | * structure, returns the corresponding 'dl_type' value for use in struct |
644 | * flow. */ | |
645 | ovs_be16 | |
646 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
647 | { | |
648 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
649 | ? htons(FLOW_DL_TYPE_NONE) | |
650 | : ofp_dl_type); | |
651 | } | |
2e4f5fcf | 652 | \f |
27527aa0 | 653 | /* Protocols. */ |
7fa91113 | 654 | |
27527aa0 BP |
655 | struct proto_abbrev { |
656 | enum ofputil_protocol protocol; | |
657 | const char *name; | |
658 | }; | |
659 | ||
660 | /* Most users really don't care about some of the differences between | |
aa233d57 | 661 | * protocols. These abbreviations help with that. */ |
27527aa0 | 662 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
663 | { OFPUTIL_P_ANY, "any" }, |
664 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
665 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
666 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
667 | }; |
668 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
669 | ||
670 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
b79d45a1 | 671 | OFPUTIL_P_OF16_OXM, |
42dccab5 | 672 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 673 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 674 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 675 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 676 | OFPUTIL_P_OF11_STD, |
85813857 BP |
677 | OFPUTIL_P_OF10_NXM, |
678 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
679 | }; |
680 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
681 | ||
4f13da56 BP |
682 | /* Returns the set of ofputil_protocols that are supported with the given |
683 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
684 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
685 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 686 | enum ofputil_protocol |
4f13da56 | 687 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
688 | { |
689 | switch (version) { | |
2e3fa633 | 690 | case OFP10_VERSION: |
4f13da56 | 691 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
692 | case OFP11_VERSION: |
693 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 694 | case OFP12_VERSION: |
85813857 | 695 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
696 | case OFP13_VERSION: |
697 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
698 | case OFP14_VERSION: |
699 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
700 | case OFP15_VERSION: |
701 | return OFPUTIL_P_OF15_OXM; | |
b79d45a1 BP |
702 | case OFP16_VERSION: |
703 | return OFPUTIL_P_OF16_OXM; | |
2e3fa633 SH |
704 | default: |
705 | return 0; | |
27527aa0 BP |
706 | } |
707 | } | |
708 | ||
4f13da56 BP |
709 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
710 | * connection that has negotiated the given 'version'. 'version' should | |
711 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
712 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
713 | * outside the valid range. */ | |
714 | enum ofputil_protocol | |
715 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
716 | { | |
717 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
718 | } | |
719 | ||
44d3732d | 720 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 721 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 722 | enum ofp_version |
9e1fd49b BP |
723 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
724 | { | |
725 | switch (protocol) { | |
85813857 BP |
726 | case OFPUTIL_P_OF10_STD: |
727 | case OFPUTIL_P_OF10_STD_TID: | |
728 | case OFPUTIL_P_OF10_NXM: | |
729 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 730 | return OFP10_VERSION; |
75fa58f8 BP |
731 | case OFPUTIL_P_OF11_STD: |
732 | return OFP11_VERSION; | |
85813857 | 733 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 734 | return OFP12_VERSION; |
2e1ae200 JR |
735 | case OFPUTIL_P_OF13_OXM: |
736 | return OFP13_VERSION; | |
c37c0382 AC |
737 | case OFPUTIL_P_OF14_OXM: |
738 | return OFP14_VERSION; | |
42dccab5 BP |
739 | case OFPUTIL_P_OF15_OXM: |
740 | return OFP15_VERSION; | |
b79d45a1 BP |
741 | case OFPUTIL_P_OF16_OXM: |
742 | return OFP16_VERSION; | |
9e1fd49b BP |
743 | } |
744 | ||
428b2edd | 745 | OVS_NOT_REACHED(); |
9e1fd49b BP |
746 | } |
747 | ||
4f13da56 BP |
748 | /* Returns a bitmap of OpenFlow versions that are supported by at |
749 | * least one of the 'protocols'. */ | |
750 | uint32_t | |
751 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
752 | { | |
753 | uint32_t bitmap = 0; | |
754 | ||
755 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
756 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
757 | ||
758 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
759 | } | |
760 | ||
761 | return bitmap; | |
762 | } | |
763 | ||
764 | /* Returns the set of protocols that are supported on top of the | |
765 | * OpenFlow versions included in 'bitmap'. */ | |
766 | enum ofputil_protocol | |
767 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
768 | { | |
769 | enum ofputil_protocol protocols = 0; | |
770 | ||
771 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
772 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
773 | ||
774 | protocols |= ofputil_protocols_from_ofp_version(version); | |
775 | } | |
776 | ||
777 | return protocols; | |
778 | } | |
779 | ||
27527aa0 BP |
780 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
781 | * otherwise. */ | |
7fa91113 | 782 | bool |
27527aa0 | 783 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 784 | { |
27527aa0 BP |
785 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
786 | } | |
787 | ||
788 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
789 | * extension turned on or off if 'enable' is true or false, respectively. | |
790 | * | |
791 | * This extension is only useful for protocols whose "standard" version does | |
792 | * not allow specific tables to be modified. In particular, this is true of | |
793 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
794 | * specifies a table ID and so there is no need for such an extension. When | |
795 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
796 | * extension, this function just returns its 'protocol' argument unchanged | |
797 | * regardless of the value of 'enable'. */ | |
798 | enum ofputil_protocol | |
799 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
800 | { | |
801 | switch (protocol) { | |
85813857 BP |
802 | case OFPUTIL_P_OF10_STD: |
803 | case OFPUTIL_P_OF10_STD_TID: | |
804 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 805 | |
85813857 BP |
806 | case OFPUTIL_P_OF10_NXM: |
807 | case OFPUTIL_P_OF10_NXM_TID: | |
808 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 809 | |
75fa58f8 BP |
810 | case OFPUTIL_P_OF11_STD: |
811 | return OFPUTIL_P_OF11_STD; | |
812 | ||
85813857 BP |
813 | case OFPUTIL_P_OF12_OXM: |
814 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 815 | |
2e1ae200 JR |
816 | case OFPUTIL_P_OF13_OXM: |
817 | return OFPUTIL_P_OF13_OXM; | |
818 | ||
c37c0382 AC |
819 | case OFPUTIL_P_OF14_OXM: |
820 | return OFPUTIL_P_OF14_OXM; | |
821 | ||
42dccab5 BP |
822 | case OFPUTIL_P_OF15_OXM: |
823 | return OFPUTIL_P_OF15_OXM; | |
824 | ||
b79d45a1 BP |
825 | case OFPUTIL_P_OF16_OXM: |
826 | return OFPUTIL_P_OF16_OXM; | |
827 | ||
27527aa0 | 828 | default: |
428b2edd | 829 | OVS_NOT_REACHED(); |
7fa91113 | 830 | } |
27527aa0 | 831 | } |
7fa91113 | 832 | |
27527aa0 BP |
833 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
834 | * some extension to a standard protocol version, the return value is the | |
835 | * standard version of that protocol without any extension. If 'protocol' is a | |
836 | * standard protocol version, returns 'protocol' unchanged. */ | |
837 | enum ofputil_protocol | |
838 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
839 | { | |
840 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
841 | } |
842 | ||
27527aa0 BP |
843 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
844 | enum ofputil_protocol | |
845 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
846 | enum ofputil_protocol new_base) | |
7fa91113 | 847 | { |
27527aa0 BP |
848 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
849 | ||
850 | switch (new_base) { | |
85813857 BP |
851 | case OFPUTIL_P_OF10_STD: |
852 | case OFPUTIL_P_OF10_STD_TID: | |
853 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 854 | |
85813857 BP |
855 | case OFPUTIL_P_OF10_NXM: |
856 | case OFPUTIL_P_OF10_NXM_TID: | |
857 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 858 | |
75fa58f8 BP |
859 | case OFPUTIL_P_OF11_STD: |
860 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
861 | ||
85813857 BP |
862 | case OFPUTIL_P_OF12_OXM: |
863 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 864 | |
2e1ae200 JR |
865 | case OFPUTIL_P_OF13_OXM: |
866 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
867 | ||
c37c0382 AC |
868 | case OFPUTIL_P_OF14_OXM: |
869 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
870 | ||
42dccab5 BP |
871 | case OFPUTIL_P_OF15_OXM: |
872 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
873 | ||
b79d45a1 BP |
874 | case OFPUTIL_P_OF16_OXM: |
875 | return ofputil_protocol_set_tid(OFPUTIL_P_OF16_OXM, tid); | |
876 | ||
7fa91113 | 877 | default: |
428b2edd | 878 | OVS_NOT_REACHED(); |
7fa91113 BP |
879 | } |
880 | } | |
881 | ||
27527aa0 BP |
882 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
883 | * 'protocol' is either a single protocol or it is a combination of protocols | |
884 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
885 | const char * | |
886 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 887 | { |
27527aa0 BP |
888 | const struct proto_abbrev *p; |
889 | ||
890 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
891 | * warning if we forget any. */ | |
892 | switch (protocol) { | |
85813857 | 893 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
894 | return "NXM-table_id"; |
895 | ||
85813857 | 896 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
897 | return "NXM+table_id"; |
898 | ||
85813857 | 899 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
900 | return "OpenFlow10-table_id"; |
901 | ||
85813857 | 902 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 903 | return "OpenFlow10+table_id"; |
44d3732d | 904 | |
75fa58f8 BP |
905 | case OFPUTIL_P_OF11_STD: |
906 | return "OpenFlow11"; | |
907 | ||
85813857 | 908 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 909 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
910 | |
911 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 912 | return "OXM-OpenFlow13"; |
c37c0382 AC |
913 | |
914 | case OFPUTIL_P_OF14_OXM: | |
915 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
916 | |
917 | case OFPUTIL_P_OF15_OXM: | |
918 | return "OXM-OpenFlow15"; | |
b79d45a1 BP |
919 | |
920 | case OFPUTIL_P_OF16_OXM: | |
921 | return "OXM-OpenFlow16"; | |
27527aa0 BP |
922 | } |
923 | ||
924 | /* Check abbreviations. */ | |
925 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
926 | if (protocol == p->protocol) { | |
927 | return p->name; | |
928 | } | |
929 | } | |
930 | ||
931 | return NULL; | |
932 | } | |
933 | ||
934 | /* Returns a string that represents 'protocols'. The return value might be a | |
935 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
936 | * value is "none" if 'protocols' is 0. | |
937 | * | |
938 | * The caller must free the returned string (with free()). */ | |
939 | char * | |
940 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
941 | { | |
942 | struct ds s; | |
943 | ||
cb22974d | 944 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
945 | if (protocols == 0) { |
946 | return xstrdup("none"); | |
947 | } | |
948 | ||
949 | ds_init(&s); | |
950 | while (protocols) { | |
951 | const struct proto_abbrev *p; | |
952 | int i; | |
953 | ||
954 | if (s.length) { | |
955 | ds_put_char(&s, ','); | |
956 | } | |
957 | ||
958 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
959 | if ((protocols & p->protocol) == p->protocol) { | |
960 | ds_put_cstr(&s, p->name); | |
961 | protocols &= ~p->protocol; | |
962 | goto match; | |
963 | } | |
964 | } | |
965 | ||
966 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
967 | enum ofputil_protocol bit = 1u << i; | |
968 | ||
969 | if (protocols & bit) { | |
970 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
971 | protocols &= ~bit; | |
972 | goto match; | |
973 | } | |
974 | } | |
428b2edd | 975 | OVS_NOT_REACHED(); |
27527aa0 BP |
976 | |
977 | match: ; | |
978 | } | |
979 | return ds_steal_cstr(&s); | |
980 | } | |
981 | ||
982 | static enum ofputil_protocol | |
983 | ofputil_protocol_from_string__(const char *s, size_t n) | |
984 | { | |
985 | const struct proto_abbrev *p; | |
986 | int i; | |
987 | ||
988 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
989 | enum ofputil_protocol bit = 1u << i; | |
990 | const char *name = ofputil_protocol_to_string(bit); | |
991 | ||
992 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
993 | return bit; | |
994 | } | |
995 | } | |
996 | ||
997 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
998 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
999 | return p->protocol; | |
1000 | } | |
1001 | } | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1007 | * single protocol name or abbreviation or a comma-separated list of them. | |
1008 | * | |
1009 | * Aborts the program with an error message if 's' is invalid. */ | |
1010 | enum ofputil_protocol | |
1011 | ofputil_protocols_from_string(const char *s) | |
1012 | { | |
1013 | const char *orig_s = s; | |
1014 | enum ofputil_protocol protocols; | |
1015 | ||
1016 | protocols = 0; | |
1017 | while (*s) { | |
1018 | enum ofputil_protocol p; | |
1019 | size_t n; | |
1020 | ||
1021 | n = strcspn(s, ","); | |
1022 | if (n == 0) { | |
1023 | s++; | |
1024 | continue; | |
1025 | } | |
1026 | ||
1027 | p = ofputil_protocol_from_string__(s, n); | |
1028 | if (!p) { | |
1029 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1030 | } | |
1031 | protocols |= p; | |
1032 | ||
1033 | s += n; | |
1034 | } | |
1035 | ||
1036 | if (!protocols) { | |
1037 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1038 | } | |
1039 | return protocols; | |
88ca35ee BP |
1040 | } |
1041 | ||
9d84066c | 1042 | enum ofp_version |
03e1125c SH |
1043 | ofputil_version_from_string(const char *s) |
1044 | { | |
1045 | if (!strcasecmp(s, "OpenFlow10")) { | |
1046 | return OFP10_VERSION; | |
1047 | } | |
1048 | if (!strcasecmp(s, "OpenFlow11")) { | |
1049 | return OFP11_VERSION; | |
1050 | } | |
1051 | if (!strcasecmp(s, "OpenFlow12")) { | |
1052 | return OFP12_VERSION; | |
1053 | } | |
2e1ae200 JR |
1054 | if (!strcasecmp(s, "OpenFlow13")) { |
1055 | return OFP13_VERSION; | |
1056 | } | |
c37c0382 AC |
1057 | if (!strcasecmp(s, "OpenFlow14")) { |
1058 | return OFP14_VERSION; | |
1059 | } | |
42dccab5 BP |
1060 | if (!strcasecmp(s, "OpenFlow15")) { |
1061 | return OFP15_VERSION; | |
1062 | } | |
b79d45a1 BP |
1063 | if (!strcasecmp(s, "OpenFlow16")) { |
1064 | return OFP16_VERSION; | |
1065 | } | |
7beaa082 | 1066 | return 0; |
03e1125c SH |
1067 | } |
1068 | ||
1069 | static bool | |
e091ef84 | 1070 | is_delimiter(unsigned char c) |
03e1125c SH |
1071 | { |
1072 | return isspace(c) || c == ','; | |
1073 | } | |
1074 | ||
1075 | uint32_t | |
1076 | ofputil_versions_from_string(const char *s) | |
1077 | { | |
1078 | size_t i = 0; | |
1079 | uint32_t bitmap = 0; | |
1080 | ||
1081 | while (s[i]) { | |
1082 | size_t j; | |
7beaa082 | 1083 | int version; |
03e1125c SH |
1084 | char *key; |
1085 | ||
1086 | if (is_delimiter(s[i])) { | |
1087 | i++; | |
1088 | continue; | |
1089 | } | |
1090 | j = 0; | |
1091 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1092 | j++; | |
1093 | } | |
1094 | key = xmemdup0(s + i, j); | |
1095 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1096 | if (!version) { |
1097 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1098 | } | |
03e1125c SH |
1099 | free(key); |
1100 | bitmap |= 1u << version; | |
1101 | i += j; | |
1102 | } | |
1103 | ||
1104 | return bitmap; | |
1105 | } | |
1106 | ||
7beaa082 SH |
1107 | uint32_t |
1108 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1109 | { | |
1110 | uint32_t bitmap = 0; | |
1111 | ||
1112 | while (count--) { | |
1113 | int version = ofputil_version_from_string(s[count]); | |
1114 | if (!version) { | |
1115 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1116 | } else { | |
1117 | bitmap |= 1u << version; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | return bitmap; | |
1122 | } | |
1123 | ||
03e1125c SH |
1124 | const char * |
1125 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1126 | { | |
1127 | switch (ofp_version) { | |
1128 | case OFP10_VERSION: | |
1129 | return "OpenFlow10"; | |
1130 | case OFP11_VERSION: | |
1131 | return "OpenFlow11"; | |
1132 | case OFP12_VERSION: | |
1133 | return "OpenFlow12"; | |
2e1ae200 JR |
1134 | case OFP13_VERSION: |
1135 | return "OpenFlow13"; | |
c37c0382 AC |
1136 | case OFP14_VERSION: |
1137 | return "OpenFlow14"; | |
42dccab5 BP |
1138 | case OFP15_VERSION: |
1139 | return "OpenFlow15"; | |
b79d45a1 BP |
1140 | case OFP16_VERSION: |
1141 | return "OpenFlow16"; | |
03e1125c | 1142 | default: |
428b2edd | 1143 | OVS_NOT_REACHED(); |
03e1125c SH |
1144 | } |
1145 | } | |
1146 | ||
54834960 EJ |
1147 | bool |
1148 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1149 | { | |
1150 | switch (packet_in_format) { | |
6409e008 BP |
1151 | case NXPIF_STANDARD: |
1152 | case NXPIF_NXT_PACKET_IN: | |
1153 | case NXPIF_NXT_PACKET_IN2: | |
54834960 EJ |
1154 | return true; |
1155 | } | |
1156 | ||
1157 | return false; | |
1158 | } | |
1159 | ||
1160 | const char * | |
1161 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1162 | { | |
1163 | switch (packet_in_format) { | |
6409e008 BP |
1164 | case NXPIF_STANDARD: |
1165 | return "standard"; | |
1166 | case NXPIF_NXT_PACKET_IN: | |
1167 | return "nxt_packet_in"; | |
1168 | case NXPIF_NXT_PACKET_IN2: | |
1169 | return "nxt_packet_in2"; | |
54834960 | 1170 | default: |
428b2edd | 1171 | OVS_NOT_REACHED(); |
54834960 EJ |
1172 | } |
1173 | } | |
1174 | ||
1175 | int | |
1176 | ofputil_packet_in_format_from_string(const char *s) | |
1177 | { | |
6409e008 BP |
1178 | return (!strcmp(s, "standard") || !strcmp(s, "openflow10") |
1179 | ? NXPIF_STANDARD | |
1180 | : !strcmp(s, "nxt_packet_in") || !strcmp(s, "nxm") | |
1181 | ? NXPIF_NXT_PACKET_IN | |
1182 | : !strcmp(s, "nxt_packet_in2") | |
1183 | ? NXPIF_NXT_PACKET_IN2 | |
54834960 EJ |
1184 | : -1); |
1185 | } | |
1186 | ||
03e1125c SH |
1187 | void |
1188 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1189 | { | |
8989046d | 1190 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1191 | } |
1192 | ||
1193 | void | |
1194 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1195 | { | |
1196 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1197 | } | |
1198 | ||
1199 | static void | |
1200 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1201 | void (*format_version)(struct ds *msg, | |
1202 | enum ofp_version)) | |
1203 | { | |
1204 | while (bitmap) { | |
1205 | format_version(msg, raw_ctz(bitmap)); | |
1206 | bitmap = zero_rightmost_1bit(bitmap); | |
1207 | if (bitmap) { | |
1208 | ds_put_cstr(msg, ", "); | |
1209 | } | |
1210 | } | |
1211 | } | |
1212 | ||
1213 | void | |
1214 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1215 | { | |
1216 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1217 | } | |
1218 | ||
1219 | void | |
1220 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1221 | { | |
1222 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1223 | } | |
1224 | ||
de6c85b0 SH |
1225 | static bool |
1226 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1227 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1228 | { |
1229 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1230 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1231 | uint32_t allowed_versions; |
de6c85b0 SH |
1232 | |
1233 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1234 | return false; | |
1235 | } | |
1236 | ||
1237 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1238 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1239 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1240 | * wire-protocol versions greater than 31. |
1241 | */ | |
0935de41 | 1242 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1243 | |
0935de41 | 1244 | if (allowed_versions & 1) { |
de6c85b0 SH |
1245 | /* There's no OpenFlow version 0. */ |
1246 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1247 | "version 0x00"); | |
0935de41 | 1248 | allowed_versions &= ~1u; |
de6c85b0 SH |
1249 | } |
1250 | ||
0935de41 | 1251 | if (!allowed_versions) { |
de6c85b0 SH |
1252 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1253 | "version (between 0x01 and 0x1f)"); | |
1254 | return false; | |
1255 | } | |
1256 | ||
0935de41 | 1257 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1258 | return true; |
1259 | } | |
1260 | ||
1261 | static uint32_t | |
1262 | version_bitmap_from_version(uint8_t ofp_version) | |
1263 | { | |
1264 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1265 | } | |
1266 | ||
1267 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1268 | * the set of OpenFlow versions for which 'oh' announces support. | |
1269 | * | |
1270 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1271 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1272 | * returns false if 'oh' contains some data that could not be fully understood, | |
1273 | * true if 'oh' was completely parsed. */ | |
1274 | bool | |
1275 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1276 | { | |
0a2869d5 | 1277 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
de6c85b0 SH |
1278 | ofpbuf_pull(&msg, sizeof *oh); |
1279 | ||
1280 | *allowed_versions = version_bitmap_from_version(oh->version); | |
0a2869d5 BP |
1281 | |
1282 | bool ok = true; | |
6fd6ed71 | 1283 | while (msg.size) { |
de6c85b0 SH |
1284 | const struct ofp_hello_elem_header *oheh; |
1285 | unsigned int len; | |
1286 | ||
6fd6ed71 | 1287 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1288 | return false; |
1289 | } | |
1290 | ||
6fd6ed71 | 1291 | oheh = msg.data; |
de6c85b0 SH |
1292 | len = ntohs(oheh->length); |
1293 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1294 | return false; | |
1295 | } | |
1296 | ||
1297 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1298 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1299 | ok = false; | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | return ok; | |
1304 | } | |
1305 | ||
1306 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1307 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1308 | static bool |
de6c85b0 SH |
1309 | should_send_version_bitmap(uint32_t allowed_versions) |
1310 | { | |
1311 | return !is_pow2((allowed_versions >> 1) + 1); | |
1312 | } | |
1313 | ||
1314 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1315 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1316 | struct ofpbuf * | |
1317 | ofputil_encode_hello(uint32_t allowed_versions) | |
1318 | { | |
1319 | enum ofp_version ofp_version; | |
1320 | struct ofpbuf *msg; | |
1321 | ||
1322 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1323 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1324 | ||
1325 | if (should_send_version_bitmap(allowed_versions)) { | |
1326 | struct ofp_hello_elem_header *oheh; | |
1327 | uint16_t map_len; | |
1328 | ||
74c4b9c1 | 1329 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1330 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1331 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1332 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1333 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1334 | |
1335 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1336 | } |
1337 | ||
1338 | return msg; | |
1339 | } | |
1340 | ||
27527aa0 BP |
1341 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1342 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1343 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1344 | * connection if the switch processes the returned message correctly. (If | |
1345 | * '*next != want' then the caller will have to iterate.) | |
1346 | * | |
e43928f2 BP |
1347 | * If 'current == want', or if it is not possible to transition from 'current' |
1348 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1349 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1350 | struct ofpbuf * |
1351 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1352 | enum ofputil_protocol want, | |
1353 | enum ofputil_protocol *next) | |
1354 | { | |
e43928f2 | 1355 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1356 | enum ofputil_protocol cur_base, want_base; |
1357 | bool cur_tid, want_tid; | |
1358 | ||
e43928f2 BP |
1359 | cur_version = ofputil_protocol_to_ofp_version(current); |
1360 | want_version = ofputil_protocol_to_ofp_version(want); | |
1361 | if (cur_version != want_version) { | |
1362 | *next = current; | |
1363 | return NULL; | |
1364 | } | |
1365 | ||
27527aa0 BP |
1366 | cur_base = ofputil_protocol_to_base(current); |
1367 | want_base = ofputil_protocol_to_base(want); | |
1368 | if (cur_base != want_base) { | |
1369 | *next = ofputil_protocol_set_base(current, want_base); | |
1370 | ||
1371 | switch (want_base) { | |
85813857 | 1372 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1373 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1374 | ||
85813857 | 1375 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1376 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1377 | ||
75fa58f8 | 1378 | case OFPUTIL_P_OF11_STD: |
85813857 | 1379 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1380 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1381 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1382 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 1383 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 | 1384 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1385 | * verified above that we're not trying to change versions. */ |
428b2edd | 1386 | OVS_NOT_REACHED(); |
44d3732d | 1387 | |
85813857 BP |
1388 | case OFPUTIL_P_OF10_STD_TID: |
1389 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1390 | OVS_NOT_REACHED(); |
27527aa0 BP |
1391 | } |
1392 | } | |
1393 | ||
1394 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1395 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1396 | if (cur_tid != want_tid) { | |
1397 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1398 | return ofputil_make_flow_mod_table_id(want_tid); | |
1399 | } | |
1400 | ||
cb22974d | 1401 | ovs_assert(current == want); |
27527aa0 BP |
1402 | |
1403 | *next = current; | |
1404 | return NULL; | |
88ca35ee BP |
1405 | } |
1406 | ||
27527aa0 BP |
1407 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1408 | * format to 'nxff'. */ | |
88ca35ee | 1409 | struct ofpbuf * |
27527aa0 | 1410 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1411 | { |
73dbf4ab | 1412 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1413 | struct ofpbuf *msg; |
1414 | ||
cb22974d | 1415 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1416 | |
982697a4 BP |
1417 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1418 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1419 | sff->format = htonl(nxff); |
88ca35ee BP |
1420 | |
1421 | return msg; | |
1422 | } | |
1423 | ||
27527aa0 BP |
1424 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1425 | * otherwise. */ | |
1426 | enum ofputil_protocol | |
1427 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1428 | { | |
1429 | switch (flow_format) { | |
1430 | case NXFF_OPENFLOW10: | |
85813857 | 1431 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1432 | |
1433 | case NXFF_NXM: | |
85813857 | 1434 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1435 | |
1436 | default: | |
1437 | return 0; | |
1438 | } | |
1439 | } | |
1440 | ||
1441 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1442 | bool | |
1443 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1444 | { | |
1445 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1446 | } | |
1447 | ||
1448 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1449 | * value. */ | |
1450 | const char * | |
1451 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1452 | { | |
1453 | switch (flow_format) { | |
1454 | case NXFF_OPENFLOW10: | |
1455 | return "openflow10"; | |
1456 | case NXFF_NXM: | |
1457 | return "nxm"; | |
1458 | default: | |
428b2edd | 1459 | OVS_NOT_REACHED(); |
27527aa0 BP |
1460 | } |
1461 | } | |
1462 | ||
54834960 | 1463 | struct ofpbuf * |
3f4a1939 SH |
1464 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1465 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1466 | { |
73dbf4ab | 1467 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1468 | struct ofpbuf *msg; |
1469 | ||
3f4a1939 | 1470 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1471 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1472 | spif->format = htonl(packet_in_format); |
1473 | ||
1474 | return msg; | |
1475 | } | |
1476 | ||
6c1491fb BP |
1477 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1478 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1479 | struct ofpbuf * | |
1480 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1481 | { | |
73dbf4ab | 1482 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1483 | struct ofpbuf *msg; |
1484 | ||
982697a4 BP |
1485 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1486 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1487 | nfmti->set = flow_mod_table_id; |
1488 | return msg; | |
1489 | } | |
1490 | ||
0fb88c18 BP |
1491 | struct ofputil_flow_mod_flag { |
1492 | uint16_t raw_flag; | |
1493 | enum ofp_version min_version, max_version; | |
1494 | enum ofputil_flow_mod_flags flag; | |
1495 | }; | |
1496 | ||
1497 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1498 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1499 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1500 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1501 | OFPUTIL_FF_EMERG }, | |
1502 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1503 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1504 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1505 | { 0, 0, 0, 0 }, | |
1506 | }; | |
1507 | ||
1508 | static enum ofperr | |
1509 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1510 | enum ofp_flow_mod_command command, | |
1511 | enum ofp_version version, | |
1512 | enum ofputil_flow_mod_flags *flagsp) | |
1513 | { | |
1514 | uint16_t raw_flags = ntohs(raw_flags_); | |
1515 | const struct ofputil_flow_mod_flag *f; | |
1516 | ||
1517 | *flagsp = 0; | |
1518 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1519 | if (raw_flags & f->raw_flag | |
1520 | && version >= f->min_version | |
1521 | && (!f->max_version || version <= f->max_version)) { | |
1522 | raw_flags &= ~f->raw_flag; | |
1523 | *flagsp |= f->flag; | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1528 | * never do. | |
1529 | * | |
1530 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1531 | * resets counters. */ | |
1532 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1533 | && command == OFPFC_ADD) { | |
1534 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1535 | } | |
1536 | ||
1537 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1538 | } | |
1539 | ||
1540 | static ovs_be16 | |
1541 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1542 | enum ofp_version version) | |
1543 | { | |
1544 | const struct ofputil_flow_mod_flag *f; | |
1545 | uint16_t raw_flags; | |
1546 | ||
1547 | raw_flags = 0; | |
1548 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1549 | if (f->flag & flags | |
1550 | && version >= f->min_version | |
1551 | && (!f->max_version || version <= f->max_version)) { | |
1552 | raw_flags |= f->raw_flag; | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | return htons(raw_flags); | |
1557 | } | |
1558 | ||
7fa91113 BP |
1559 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1560 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1561 | * code. | |
1562 | * | |
f25d0cf3 BP |
1563 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1564 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1565 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1566 | * | |
1567 | * Does not validate the flow_mod actions. The caller should do that, with | |
1568 | * ofpacts_check(). */ | |
90bf1e07 | 1569 | enum ofperr |
a9a2da38 | 1570 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1571 | const struct ofp_header *oh, |
f25d0cf3 | 1572 | enum ofputil_protocol protocol, |
8d8ab6c2 | 1573 | const struct tun_table *tun_table, |
7e9f8266 BP |
1574 | struct ofpbuf *ofpacts, |
1575 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1576 | { |
0fb88c18 BP |
1577 | ovs_be16 raw_flags; |
1578 | enum ofperr error; | |
0a2869d5 BP |
1579 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
1580 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
aa319503 | 1581 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1582 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1583 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1584 | |
bbc32a88 | 1585 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1586 | |
8d8ab6c2 | 1587 | error = ofputil_pull_ofp11_match(&b, tun_table, &fm->match, NULL); |
aa319503 BP |
1588 | if (error) { |
1589 | return error; | |
1c0b7503 BP |
1590 | } |
1591 | ||
2e4f5fcf | 1592 | /* Translate the message. */ |
81a76618 | 1593 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1594 | if (ofm->command == OFPFC_ADD |
1595 | || (oh->version == OFP11_VERSION | |
1596 | && (ofm->command == OFPFC_MODIFY || | |
1597 | ofm->command == OFPFC_MODIFY_STRICT) | |
1598 | && ofm->cookie_mask == htonll(0))) { | |
1599 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1600 | * not match on the cookie is treated as an "add" if there is no | |
1601 | * match. */ | |
aa319503 BP |
1602 | fm->cookie = htonll(0); |
1603 | fm->cookie_mask = htonll(0); | |
1604 | fm->new_cookie = ofm->cookie; | |
1605 | } else { | |
aa319503 BP |
1606 | fm->cookie = ofm->cookie; |
1607 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1608 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1609 | } |
23342857 | 1610 | fm->modify_cookie = false; |
aa319503 | 1611 | fm->command = ofm->command; |
0e197060 BP |
1612 | |
1613 | /* Get table ID. | |
1614 | * | |
083761ad SH |
1615 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1616 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1617 | fm->table_id = ofm->table_id; |
083761ad | 1618 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1619 | && (oh->version == OFP11_VERSION |
1620 | || (ofm->command != OFPFC_DELETE && | |
1621 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1622 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1623 | } | |
1624 | ||
2e4f5fcf BP |
1625 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1626 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1627 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1628 | fm->importance = ntohs(ofm->importance); | |
1629 | } else { | |
1630 | fm->importance = 0; | |
1631 | } | |
2e4f5fcf | 1632 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1633 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1634 | if (error) { |
1635 | return error; | |
1636 | } | |
7395c052 | 1637 | |
1fe4c0a0 BP |
1638 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1639 | ofm->command == OFPFC_DELETE_STRICT | |
1640 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1641 | : OFPG_ANY); |
0fb88c18 | 1642 | raw_flags = ofm->flags; |
aa319503 | 1643 | } else { |
0fb88c18 BP |
1644 | uint16_t command; |
1645 | ||
aa319503 BP |
1646 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1647 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1648 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1649 | |
1650 | /* Get the ofp10_flow_mod. */ | |
1651 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1652 | ||
aa319503 | 1653 | /* Translate the rule. */ |
81a76618 BP |
1654 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1655 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1656 | |
81a76618 BP |
1657 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1658 | * highest possible priority. */ | |
1659 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1660 | ? ntohs(ofm->priority) | |
1661 | : UINT16_MAX); | |
1662 | ||
aa319503 BP |
1663 | /* Translate the message. */ |
1664 | command = ntohs(ofm->command); | |
1665 | fm->cookie = htonll(0); | |
1666 | fm->cookie_mask = htonll(0); | |
1667 | fm->new_cookie = ofm->cookie; | |
1668 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1669 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1670 | fm->importance = 0; |
aa319503 | 1671 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1672 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1673 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1674 | raw_flags = ofm->flags; |
aa319503 BP |
1675 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1676 | /* Nicira extended flow_mod. */ | |
1677 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1678 | |
1679 | /* Dissect the message. */ | |
1680 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 | 1681 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
8d8ab6c2 JG |
1682 | &fm->match, &fm->cookie, &fm->cookie_mask, |
1683 | tun_table); | |
aa319503 BP |
1684 | if (error) { |
1685 | return error; | |
1686 | } | |
aa319503 BP |
1687 | |
1688 | /* Translate the message. */ | |
1689 | command = ntohs(nfm->command); | |
1690 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1691 | /* Flow additions may only set a new cookie, not match an | |
1692 | * existing cookie. */ | |
1693 | return OFPERR_NXBRC_NXM_INVALID; | |
1694 | } | |
81a76618 | 1695 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1696 | fm->new_cookie = nfm->cookie; |
1697 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1698 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1699 | fm->importance = 0; |
aa319503 | 1700 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1701 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1702 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1703 | raw_flags = nfm->flags; |
aa319503 | 1704 | } else { |
428b2edd | 1705 | OVS_NOT_REACHED(); |
aa319503 BP |
1706 | } |
1707 | ||
b8266395 | 1708 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1709 | if (protocol & OFPUTIL_P_TID) { |
1710 | fm->command = command & 0xff; | |
1711 | fm->table_id = command >> 8; | |
1712 | } else { | |
1f42be1c JR |
1713 | if (command > 0xff) { |
1714 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1715 | "but flow_mod_table_id extension is not enabled"); | |
1716 | } | |
aa319503 BP |
1717 | fm->command = command; |
1718 | fm->table_id = 0xff; | |
e729e793 | 1719 | } |
2e4f5fcf BP |
1720 | } |
1721 | ||
1f42be1c JR |
1722 | if (fm->command > OFPFC_DELETE_STRICT) { |
1723 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1724 | } | |
1725 | ||
6fd6ed71 | 1726 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1727 | oh->version, ofpacts); |
1728 | if (error) { | |
1729 | return error; | |
1730 | } | |
6fd6ed71 PS |
1731 | fm->ofpacts = ofpacts->data; |
1732 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1733 | |
0fb88c18 BP |
1734 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1735 | oh->version, &fm->flags); | |
1736 | if (error) { | |
1737 | return error; | |
1738 | } | |
1739 | ||
1740 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1741 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1742 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1743 | * | |
1744 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1745 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1746 | * code, so just state that the flow table is full. */ | |
1747 | return (fm->hard_timeout || fm->idle_timeout | |
1748 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1749 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1750 | } | |
1751 | ||
ba2fe8e9 BP |
1752 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1753 | &fm->match.flow, max_port, | |
1754 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1755 | } |
1756 | ||
638a19b0 JR |
1757 | static enum ofperr |
1758 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1759 | struct ofpbuf *bands) | |
1760 | { | |
1761 | const struct ofp13_meter_band_header *ombh; | |
1762 | struct ofputil_meter_band *mb; | |
1763 | uint16_t n = 0; | |
1764 | ||
1765 | ombh = ofpbuf_try_pull(msg, len); | |
1766 | if (!ombh) { | |
1767 | return OFPERR_OFPBRC_BAD_LEN; | |
1768 | } | |
1769 | ||
1770 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1771 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1772 | /* All supported band types have the same length. */ |
638a19b0 JR |
1773 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1774 | return OFPERR_OFPBRC_BAD_LEN; | |
1775 | } | |
1776 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1777 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1778 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1779 | return OFPERR_OFPMMFC_BAD_BAND; | |
1780 | } | |
638a19b0 JR |
1781 | mb->rate = ntohl(ombh->rate); |
1782 | mb->burst_size = ntohl(ombh->burst_size); | |
1783 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1784 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1785 | n++; | |
1786 | len -= ombh_len; | |
db5a1019 AW |
1787 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1788 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1789 | } |
1790 | if (len) { | |
1791 | return OFPERR_OFPBRC_BAD_LEN; | |
1792 | } | |
1793 | *n_bands = n; | |
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | enum ofperr | |
1798 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1799 | struct ofputil_meter_mod *mm, | |
1800 | struct ofpbuf *bands) | |
1801 | { | |
0a2869d5 | 1802 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
638a19b0 | 1803 | ofpraw_pull_assert(&b); |
0a2869d5 | 1804 | const struct ofp13_meter_mod *omm = ofpbuf_pull(&b, sizeof *omm); |
638a19b0 JR |
1805 | |
1806 | /* Translate the message. */ | |
1807 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1808 | if (mm->command != OFPMC13_ADD && |
1809 | mm->command != OFPMC13_MODIFY && | |
1810 | mm->command != OFPMC13_DELETE) { | |
1811 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1812 | } | |
638a19b0 JR |
1813 | mm->meter.meter_id = ntohl(omm->meter_id); |
1814 | ||
1815 | if (mm->command == OFPMC13_DELETE) { | |
1816 | mm->meter.flags = 0; | |
1817 | mm->meter.n_bands = 0; | |
1818 | mm->meter.bands = NULL; | |
1819 | } else { | |
1820 | enum ofperr error; | |
1821 | ||
1822 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1823 | if (mm->meter.flags & OFPMF13_KBPS && |
1824 | mm->meter.flags & OFPMF13_PKTPS) { | |
1825 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1826 | } | |
6fd6ed71 | 1827 | mm->meter.bands = bands->data; |
638a19b0 | 1828 | |
6fd6ed71 | 1829 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1830 | if (error) { |
1831 | return error; | |
1832 | } | |
1833 | } | |
1834 | return 0; | |
1835 | } | |
1836 | ||
1837 | void | |
1838 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1839 | { | |
1840 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1841 | *meter_id = ntohl(omr->meter_id); | |
1842 | } | |
1843 | ||
1844 | struct ofpbuf * | |
1845 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1846 | enum ofputil_meter_request_type type, | |
1847 | uint32_t meter_id) | |
1848 | { | |
1849 | struct ofpbuf *msg; | |
1850 | ||
1851 | enum ofpraw raw; | |
1852 | ||
1853 | switch (type) { | |
1854 | case OFPUTIL_METER_CONFIG: | |
1855 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1856 | break; | |
1857 | case OFPUTIL_METER_STATS: | |
1858 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1859 | break; | |
1860 | default: | |
1861 | case OFPUTIL_METER_FEATURES: | |
1862 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1863 | break; | |
1864 | } | |
1865 | ||
1866 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1867 | ||
1868 | if (type != OFPUTIL_METER_FEATURES) { | |
1869 | struct ofp13_meter_multipart_request *omr; | |
1870 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1871 | omr->meter_id = htonl(meter_id); | |
1872 | } | |
1873 | return msg; | |
1874 | } | |
1875 | ||
1876 | static void | |
1877 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1878 | struct ofpbuf *msg) | |
1879 | { | |
1880 | uint16_t n = 0; | |
1881 | ||
1882 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1883 | /* Currently all band types have same size. */ |
638a19b0 JR |
1884 | struct ofp13_meter_band_dscp_remark *ombh; |
1885 | size_t ombh_len = sizeof *ombh; | |
1886 | ||
1887 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1888 | ||
1889 | ombh->type = htons(mb->type); | |
1890 | ombh->len = htons(ombh_len); | |
1891 | ombh->rate = htonl(mb->rate); | |
1892 | ombh->burst_size = htonl(mb->burst_size); | |
1893 | ombh->prec_level = mb->prec_level; | |
1894 | ||
1895 | mb++; | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1900 | void | |
ca6ba700 | 1901 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1902 | const struct ofputil_meter_config *mc) |
1903 | { | |
417e7e66 | 1904 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 1905 | size_t start_ofs = msg->size; |
6a5490c6 | 1906 | struct ofp13_meter_config *reply; |
638a19b0 | 1907 | |
6a5490c6 | 1908 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1909 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1910 | ||
32756a57 | 1911 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1912 | reply->flags = htons(mc->flags); |
1913 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1914 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1915 | |
1916 | ofpmp_postappend(replies, start_ofs); | |
1917 | } | |
1918 | ||
1919 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1920 | void | |
ca6ba700 | 1921 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1922 | const struct ofputil_meter_stats *ms) |
1923 | { | |
1924 | struct ofp13_meter_stats *reply; | |
1925 | uint16_t n = 0; | |
1926 | uint16_t len; | |
1927 | ||
1928 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1929 | reply = ofpmp_append(replies, len); | |
1930 | ||
1931 | reply->meter_id = htonl(ms->meter_id); | |
1932 | reply->len = htons(len); | |
1933 | memset(reply->pad, 0, sizeof reply->pad); | |
1934 | reply->flow_count = htonl(ms->flow_count); | |
1935 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1936 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1937 | reply->duration_sec = htonl(ms->duration_sec); | |
1938 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1939 | ||
1940 | for (n = 0; n < ms->n_bands; ++n) { | |
1941 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1942 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1943 | ||
1944 | dst->packet_band_count = htonll(src->packet_count); | |
1945 | dst->byte_band_count = htonll(src->byte_count); | |
1946 | } | |
1947 | } | |
1948 | ||
1949 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1950 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1951 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1952 | * it across the call. | |
1953 | * | |
1954 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1955 | * message. Calling this function multiple times for a single 'msg' iterates | |
1956 | * through the replies. 'bands' is cleared for each reply. | |
1957 | * | |
1958 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1959 | * otherwise a positive errno value. */ | |
1960 | int | |
1961 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1962 | struct ofputil_meter_config *mc, | |
1963 | struct ofpbuf *bands) | |
1964 | { | |
1965 | const struct ofp13_meter_config *omc; | |
1966 | enum ofperr err; | |
1967 | ||
1968 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1969 | if (!msg->header) { |
638a19b0 JR |
1970 | ofpraw_pull_assert(msg); |
1971 | } | |
1972 | ||
6fd6ed71 | 1973 | if (!msg->size) { |
638a19b0 JR |
1974 | return EOF; |
1975 | } | |
1976 | ||
1977 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1978 | if (!omc) { | |
0445637d | 1979 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1980 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 1981 | msg->size); |
638a19b0 JR |
1982 | return OFPERR_OFPBRC_BAD_LEN; |
1983 | } | |
1984 | ||
1985 | ofpbuf_clear(bands); | |
1986 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1987 | &mc->n_bands, bands); | |
1988 | if (err) { | |
1989 | return err; | |
1990 | } | |
1991 | mc->meter_id = ntohl(omc->meter_id); | |
1992 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 1993 | mc->bands = bands->data; |
638a19b0 JR |
1994 | |
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | static enum ofperr | |
1999 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2000 | struct ofpbuf *bands) | |
2001 | { | |
2002 | const struct ofp13_meter_band_stats *ombs; | |
2003 | struct ofputil_meter_band_stats *mbs; | |
2004 | uint16_t n, i; | |
2005 | ||
0445637d JR |
2006 | ombs = ofpbuf_try_pull(msg, len); |
2007 | if (!ombs) { | |
2008 | return OFPERR_OFPBRC_BAD_LEN; | |
2009 | } | |
2010 | ||
638a19b0 JR |
2011 | n = len / sizeof *ombs; |
2012 | if (len != n * sizeof *ombs) { | |
2013 | return OFPERR_OFPBRC_BAD_LEN; | |
2014 | } | |
2015 | ||
638a19b0 JR |
2016 | mbs = ofpbuf_put_uninit(bands, len); |
2017 | ||
2018 | for (i = 0; i < n; ++i) { | |
2019 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2020 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2021 | } | |
2022 | *n_bands = n; | |
2023 | return 0; | |
2024 | } | |
2025 | ||
2026 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2027 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2028 | * decoded into 'bands'. | |
2029 | * | |
2030 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2031 | * message. Calling this function multiple times for a single 'msg' iterates | |
2032 | * through the replies. 'bands' is cleared for each reply. | |
2033 | * | |
2034 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2035 | * otherwise a positive errno value. */ | |
2036 | int | |
2037 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2038 | struct ofputil_meter_stats *ms, | |
2039 | struct ofpbuf *bands) | |
2040 | { | |
2041 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2042 | enum ofperr err; |
2043 | ||
2044 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2045 | if (!msg->header) { |
638a19b0 JR |
2046 | ofpraw_pull_assert(msg); |
2047 | } | |
2048 | ||
6fd6ed71 | 2049 | if (!msg->size) { |
638a19b0 JR |
2050 | return EOF; |
2051 | } | |
2052 | ||
2053 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2054 | if (!oms) { | |
0445637d | 2055 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2056 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2057 | msg->size); |
638a19b0 JR |
2058 | return OFPERR_OFPBRC_BAD_LEN; |
2059 | } | |
638a19b0 JR |
2060 | |
2061 | ofpbuf_clear(bands); | |
0445637d JR |
2062 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2063 | &ms->n_bands, bands); | |
638a19b0 JR |
2064 | if (err) { |
2065 | return err; | |
2066 | } | |
2067 | ms->meter_id = ntohl(oms->meter_id); | |
2068 | ms->flow_count = ntohl(oms->flow_count); | |
2069 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2070 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2071 | ms->duration_sec = ntohl(oms->duration_sec); | |
2072 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2073 | ms->bands = bands->data; |
638a19b0 JR |
2074 | |
2075 | return 0; | |
2076 | } | |
2077 | ||
2078 | void | |
2079 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2080 | struct ofputil_meter_features *mf) | |
2081 | { | |
2082 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2083 | ||
2084 | mf->max_meters = ntohl(omf->max_meter); | |
2085 | mf->band_types = ntohl(omf->band_types); | |
2086 | mf->capabilities = ntohl(omf->capabilities); | |
2087 | mf->max_bands = omf->max_bands; | |
2088 | mf->max_color = omf->max_color; | |
2089 | } | |
2090 | ||
2091 | struct ofpbuf * | |
2092 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2093 | const struct ofp_header *request) | |
2094 | { | |
2095 | struct ofpbuf *reply; | |
2096 | struct ofp13_meter_features *omf; | |
2097 | ||
2098 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2099 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2100 | ||
2101 | omf->max_meter = htonl(mf->max_meters); | |
2102 | omf->band_types = htonl(mf->band_types); | |
2103 | omf->capabilities = htonl(mf->capabilities); | |
2104 | omf->max_bands = mf->max_bands; | |
2105 | omf->max_color = mf->max_color; | |
2106 | ||
2107 | return reply; | |
2108 | } | |
2109 | ||
2110 | struct ofpbuf * | |
2111 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2112 | const struct ofputil_meter_mod *mm) | |
2113 | { | |
2114 | struct ofpbuf *msg; | |
2115 | ||
2116 | struct ofp13_meter_mod *omm; | |
2117 | ||
2118 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2119 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2120 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2121 | omm->command = htons(mm->command); | |
2122 | if (mm->command != OFPMC13_DELETE) { | |
2123 | omm->flags = htons(mm->meter.flags); | |
2124 | } | |
2125 | omm->meter_id = htonl(mm->meter.meter_id); | |
2126 | ||
2127 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2128 | ||
2129 | ofpmsg_update_length(msg); | |
2130 | return msg; | |
2131 | } | |
2132 | ||
aa6305ea SH |
2133 | static ovs_be16 |
2134 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2135 | enum ofputil_protocol protocol) | |
2136 | { | |
2137 | return htons(protocol & OFPUTIL_P_TID | |
2138 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2139 | : fm->command); | |
2140 | } | |
2141 | ||
2e4f5fcf | 2142 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2143 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2144 | struct ofpbuf * |
a9a2da38 | 2145 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2146 | enum ofputil_protocol protocol) |
2e4f5fcf | 2147 | { |
0fb88c18 BP |
2148 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2149 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2150 | struct ofpbuf *msg; |
2151 | ||
27527aa0 | 2152 | switch (protocol) { |
75fa58f8 | 2153 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2154 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2155 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2156 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2157 | case OFPUTIL_P_OF15_OXM: |
2158 | case OFPUTIL_P_OF16_OXM: { | |
aa6305ea | 2159 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2160 | int tailroom; |
aa6305ea | 2161 | |
75fa58f8 | 2162 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2163 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2164 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2165 | if ((protocol == OFPUTIL_P_OF11_STD |
2166 | && (fm->command == OFPFC_MODIFY || | |
2167 | fm->command == OFPFC_MODIFY_STRICT) | |
2168 | && fm->cookie_mask == htonll(0)) | |
2169 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2170 | ofm->cookie = fm->new_cookie; |
2171 | } else { | |
ba5cc068 | 2172 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2173 | } |
aa6305ea | 2174 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2175 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2176 | || (protocol != OFPUTIL_P_OF11_STD |
2177 | && (fm->command == OFPFC_DELETE || | |
2178 | fm->command == OFPFC_DELETE_STRICT))) { | |
2179 | ofm->table_id = fm->table_id; | |
2180 | } else { | |
2181 | ofm->table_id = 0; | |
2182 | } | |
aa6305ea SH |
2183 | ofm->command = fm->command; |
2184 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2185 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2186 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2187 | ofm->buffer_id = htonl(fm->buffer_id); |
2188 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2189 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2190 | ofm->flags = raw_flags; |
ca26eb44 RB |
2191 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2192 | ofm->importance = htons(fm->importance); | |
2193 | } else { | |
2194 | ofm->importance = 0; | |
2195 | } | |
75fa58f8 | 2196 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2197 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2198 | version); | |
aa6305ea SH |
2199 | break; |
2200 | } | |
2201 | ||
85813857 BP |
2202 | case OFPUTIL_P_OF10_STD: |
2203 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2204 | struct ofp10_flow_mod *ofm; |
2205 | ||
982697a4 BP |
2206 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2207 | fm->ofpacts_len); | |
2208 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2209 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2210 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2211 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2212 | ofm->idle_timeout = htons(fm->idle_timeout); |
2213 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2214 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2215 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2216 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2217 | ofm->flags = raw_flags; |
e3f8f887 JR |
2218 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2219 | version); | |
27527aa0 | 2220 | break; |
3f192f23 | 2221 | } |
2e4f5fcf | 2222 | |
85813857 BP |
2223 | case OFPUTIL_P_OF10_NXM: |
2224 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2225 | struct nx_flow_mod *nfm; |
2226 | int match_len; | |
2227 | ||
982697a4 BP |
2228 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2229 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2230 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2231 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2232 | nfm->cookie = fm->new_cookie; |
81a76618 | 2233 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2234 | nfm = msg->msg; |
2e4f5fcf BP |
2235 | nfm->idle_timeout = htons(fm->idle_timeout); |
2236 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2237 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2238 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2239 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2240 | nfm->flags = raw_flags; |
2e4f5fcf | 2241 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2242 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2243 | version); | |
27527aa0 | 2244 | break; |
3f192f23 | 2245 | } |
27527aa0 BP |
2246 | |
2247 | default: | |
428b2edd | 2248 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2249 | } |
2250 | ||
982697a4 | 2251 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2252 | return msg; |
2253 | } | |
2254 | ||
90bf1e07 | 2255 | static enum ofperr |
0157ad3a SH |
2256 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2257 | const struct ofp10_flow_stats_request *ofsr, | |
2258 | bool aggregate) | |
2e4f5fcf | 2259 | { |
2e4f5fcf | 2260 | fsr->aggregate = aggregate; |
81a76618 | 2261 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2262 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2263 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2264 | fsr->table_id = ofsr->table_id; |
e729e793 | 2265 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2266 | |
2267 | return 0; | |
2268 | } | |
2269 | ||
0157ad3a SH |
2270 | static enum ofperr |
2271 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
8d8ab6c2 JG |
2272 | struct ofpbuf *b, bool aggregate, |
2273 | const struct tun_table *tun_table) | |
0157ad3a SH |
2274 | { |
2275 | const struct ofp11_flow_stats_request *ofsr; | |
2276 | enum ofperr error; | |
2277 | ||
2278 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2279 | fsr->aggregate = aggregate; | |
2280 | fsr->table_id = ofsr->table_id; | |
2281 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2282 | if (error) { | |
2283 | return error; | |
2284 | } | |
7395c052 | 2285 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2286 | fsr->cookie = ofsr->cookie; |
2287 | fsr->cookie_mask = ofsr->cookie_mask; | |
8d8ab6c2 | 2288 | error = ofputil_pull_ofp11_match(b, tun_table, &fsr->match, NULL); |
0157ad3a SH |
2289 | if (error) { |
2290 | return error; | |
2291 | } | |
2292 | ||
2293 | return 0; | |
2294 | } | |
2295 | ||
90bf1e07 | 2296 | static enum ofperr |
81d1ea94 | 2297 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 JG |
2298 | struct ofpbuf *b, bool aggregate, |
2299 | const struct tun_table *tun_table) | |
2e4f5fcf BP |
2300 | { |
2301 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2302 | enum ofperr error; |
2e4f5fcf | 2303 | |
982697a4 | 2304 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2305 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
8d8ab6c2 | 2306 | &fsr->cookie, &fsr->cookie_mask, tun_table); |
2e4f5fcf BP |
2307 | if (error) { |
2308 | return error; | |
2309 | } | |
6fd6ed71 | 2310 | if (b->size) { |
90bf1e07 | 2311 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2312 | } |
2313 | ||
2314 | fsr->aggregate = aggregate; | |
4e022ec0 | 2315 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2316 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2317 | fsr->table_id = nfsr->table_id; |
2318 | ||
2319 | return 0; | |
2320 | } | |
2321 | ||
e8f9a7bb | 2322 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2323 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2324 | * | |
2325 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2326 | * request all queues. */ | |
e8f9a7bb VG |
2327 | struct ofpbuf * |
2328 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2329 | ofp_port_t port, |
2330 | uint32_t queue) | |
e8f9a7bb VG |
2331 | { |
2332 | struct ofpbuf *request; | |
2333 | ||
2334 | if (version == OFP10_VERSION) { | |
2335 | struct ofp10_queue_get_config_request *qgcr10; | |
2336 | ||
2337 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2338 | version, 0); | |
2339 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2340 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2341 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2342 | struct ofp11_queue_get_config_request *qgcr11; |
2343 | ||
2344 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2345 | version, 0); | |
2346 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2347 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2348 | } else { |
2349 | struct ofp14_queue_desc_request *qdr14; | |
2350 | ||
2351 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2352 | version, 0); | |
2353 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2354 | qdr14->port = ofputil_port_to_ofp11(port); | |
2355 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2356 | } |
2357 | ||
2358 | return request; | |
2359 | } | |
2360 | ||
2361 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2362 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2363 | * code. */ | |
2364 | enum ofperr | |
2365 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2366 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2367 | { |
2368 | const struct ofp10_queue_get_config_request *qgcr10; | |
2369 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2370 | const struct ofp14_queue_desc_request *qdr14; |
0a2869d5 BP |
2371 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2372 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
e8f9a7bb VG |
2373 | |
2374 | switch ((int) raw) { | |
2375 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2376 | qgcr10 = b.data; |
e8f9a7bb | 2377 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2378 | *queue = OFPQ_ALL; |
56085be5 | 2379 | break; |
e8f9a7bb VG |
2380 | |
2381 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2382 | qgcr11 = b.data; |
e016fb63 | 2383 | *queue = OFPQ_ALL; |
56085be5 BP |
2384 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2385 | if (error || *port == OFPP_ANY) { | |
2386 | return error; | |
2387 | } | |
2388 | break; | |
2389 | ||
e016fb63 BP |
2390 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2391 | qdr14 = b.data; | |
2392 | *queue = ntohl(qdr14->queue); | |
2393 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2394 | ||
56085be5 BP |
2395 | default: |
2396 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2397 | } |
2398 | ||
56085be5 BP |
2399 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2400 | ? 0 | |
2401 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2402 | } |
2403 | ||
2404 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2405 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2406 | * may append information about individual queues with | |
2407 | * ofputil_append_queue_get_config_reply(). */ | |
2408 | void | |
2409 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2410 | struct ovs_list *replies) | |
e8f9a7bb | 2411 | { |
e8f9a7bb VG |
2412 | struct ofpbuf *reply; |
2413 | enum ofperr error; | |
e8f9a7bb | 2414 | ofp_port_t port; |
e016fb63 | 2415 | uint32_t queue; |
e8f9a7bb | 2416 | |
e016fb63 | 2417 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2418 | ovs_assert(!error); |
2419 | ||
e016fb63 | 2420 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2421 | switch ((int) raw) { |
2422 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2423 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2424 | request, 0); |
2425 | struct ofp10_queue_get_config_reply *qgcr10 | |
2426 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2427 | qgcr10->port = htons(ofp_to_u16(port)); |
2428 | break; | |
2429 | ||
2430 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2431 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2432 | request, 0); |
2433 | struct ofp11_queue_get_config_reply *qgcr11 | |
2434 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2435 | qgcr11->port = ofputil_port_to_ofp11(port); |
2436 | break; | |
2437 | ||
e016fb63 BP |
2438 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2439 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2440 | break; | |
2441 | ||
e8f9a7bb | 2442 | default: |
428b2edd | 2443 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2444 | } |
2445 | ||
417e7e66 BW |
2446 | ovs_list_init(replies); |
2447 | ovs_list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2448 | } |
2449 | ||
2450 | static void | |
d2e5fa1f BP |
2451 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2452 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2453 | { |
2454 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2455 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2456 | |
2457 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2458 | oqpr->prop_header.property = htons(property); | |
2459 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2460 | oqpr->rate = htons(rate); | |
2461 | } | |
2462 | } | |
2463 | ||
e016fb63 BP |
2464 | static void |
2465 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2466 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2467 | { | |
2468 | if (rate != UINT16_MAX) { | |
2469 | ofpprop_put_u16(reply, type, rate); | |
2470 | } | |
2471 | } | |
2472 | ||
e8f9a7bb | 2473 | void |
e016fb63 BP |
2474 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2475 | struct ovs_list *replies) | |
e8f9a7bb | 2476 | { |
e016fb63 | 2477 | enum ofp_version ofp_version = ofpmp_version(replies); |
417e7e66 | 2478 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
e016fb63 BP |
2479 | size_t start_ofs = reply->size; |
2480 | size_t len_ofs; | |
e8f9a7bb VG |
2481 | ovs_be16 *len; |
2482 | ||
e016fb63 BP |
2483 | if (ofp_version < OFP14_VERSION) { |
2484 | if (ofp_version < OFP12_VERSION) { | |
2485 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2486 | |
e016fb63 BP |
2487 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2488 | opq10->queue_id = htonl(qc->queue); | |
2489 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2490 | } else { | |
2491 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2492 | |
e016fb63 BP |
2493 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2494 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2495 | opq12->queue_id = htonl(qc->queue); | |
2496 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2497 | } | |
e8f9a7bb | 2498 | |
e016fb63 BP |
2499 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2500 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2501 | } else { | |
2502 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2503 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2504 | oqd->queue_id = htonl(qc->queue); | |
2505 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2506 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2507 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2508 | } | |
e8f9a7bb VG |
2509 | |
2510 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2511 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2512 | |
e016fb63 BP |
2513 | if (ofp_version >= OFP14_VERSION) { |
2514 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2515 | } |
e8f9a7bb VG |
2516 | } |
2517 | ||
2518 | static enum ofperr | |
d2e5fa1f BP |
2519 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2520 | uint16_t *rate) | |
e8f9a7bb | 2521 | { |
d2e5fa1f | 2522 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2523 | |
2524 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2525 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2526 | *rate = ntohs(oqpr->rate); |
2527 | return 0; | |
2528 | } else { | |
2529 | return OFPERR_OFPBRC_BAD_LEN; | |
2530 | } | |
2531 | } | |
2532 | ||
e016fb63 BP |
2533 | static int |
2534 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2535 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2536 | { |
e016fb63 BP |
2537 | const struct ofp_header *oh = msg->header; |
2538 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2539 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2540 | |
e016fb63 BP |
2541 | /* Obtain the port number from the message header. */ |
2542 | if (oh->version == OFP10_VERSION) { | |
2543 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2544 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2545 | } else { | |
2546 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2547 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2548 | &queue->port); | |
2549 | if (error) { | |
2550 | return error; | |
2551 | } | |
e8f9a7bb VG |
2552 | } |
2553 | ||
e016fb63 | 2554 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2555 | if (oh->version < OFP12_VERSION) { |
2556 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2557 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2558 | if (!opq10) { |
2559 | return OFPERR_OFPBRC_BAD_LEN; | |
2560 | } | |
e016fb63 | 2561 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2562 | len = ntohs(opq10->len); |
2563 | opq_len = sizeof *opq10; | |
2564 | } else { | |
2565 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2566 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2567 | if (!opq12) { |
2568 | return OFPERR_OFPBRC_BAD_LEN; | |
2569 | } | |
e016fb63 | 2570 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2571 | len = ntohs(opq12->len); |
2572 | opq_len = sizeof *opq12; | |
2573 | } | |
2574 | ||
e016fb63 BP |
2575 | /* Length check. */ |
2576 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2577 | return OFPERR_OFPBRC_BAD_LEN; |
2578 | } | |
2579 | len -= opq_len; | |
2580 | ||
e016fb63 BP |
2581 | /* Pull properties. The format of these properties differs from used in |
2582 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2583 | while (len > 0) { |
d2e5fa1f | 2584 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2585 | unsigned int property; |
2586 | unsigned int prop_len; | |
2587 | enum ofperr error = 0; | |
2588 | ||
e016fb63 | 2589 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2590 | prop_len = ntohs(hdr->len); |
e016fb63 | 2591 | if (prop_len < sizeof *hdr || prop_len > msg->size || prop_len % 8) { |
e8f9a7bb VG |
2592 | return OFPERR_OFPBRC_BAD_LEN; |
2593 | } | |
2594 | ||
2595 | property = ntohs(hdr->property); | |
2596 | switch (property) { | |
d2e5fa1f BP |
2597 | case OFPQT10_MIN_RATE: |
2598 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2599 | break; |
2600 | ||
d2e5fa1f BP |
2601 | case OFPQT11_MAX_RATE: |
2602 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2603 | break; |
2604 | ||
2605 | default: | |
2606 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2607 | break; | |
2608 | } | |
2609 | if (error) { | |
2610 | return error; | |
2611 | } | |
2612 | ||
e016fb63 | 2613 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2614 | len -= prop_len; |
2615 | } | |
2616 | return 0; | |
2617 | } | |
2618 | ||
e016fb63 BP |
2619 | static int |
2620 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2621 | struct ofputil_queue_config *queue) | |
2622 | { | |
2623 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2624 | if (!oqd14) { | |
2625 | return OFPERR_OFPBRC_BAD_LEN; | |
2626 | } | |
2627 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2628 | if (error) { | |
2629 | return error; | |
2630 | } | |
2631 | queue->queue = ntohl(oqd14->queue_id); | |
2632 | ||
2633 | /* Length check. */ | |
2634 | unsigned int len = ntohs(oqd14->len); | |
2635 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2636 | return OFPERR_OFPBRC_BAD_LEN; | |
2637 | } | |
2638 | len -= sizeof *oqd14; | |
2639 | ||
0a2869d5 BP |
2640 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
2641 | len); | |
e016fb63 BP |
2642 | while (properties.size > 0) { |
2643 | struct ofpbuf payload; | |
2644 | uint64_t type; | |
2645 | ||
2646 | error = ofpprop_pull(&properties, &payload, &type); | |
2647 | if (error) { | |
2648 | return error; | |
2649 | } | |
2650 | ||
2651 | switch (type) { | |
2652 | case OFPQDPT14_MIN_RATE: | |
2653 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2654 | break; | |
2655 | ||
2656 | case OFPQDPT14_MAX_RATE: | |
2657 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2658 | break; | |
2659 | ||
2660 | default: | |
2661 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2662 | break; | |
2663 | } | |
2664 | ||
2665 | if (error) { | |
2666 | return error; | |
2667 | } | |
2668 | } | |
2669 | ||
2670 | return 0; | |
2671 | } | |
2672 | ||
2673 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2674 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2675 | * must already have pulled off the main header. | |
2676 | * | |
2677 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2678 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2679 | * problem decoding 'reply'. */ | |
2680 | int | |
2681 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2682 | struct ofputil_queue_config *queue) | |
2683 | { | |
2684 | enum ofpraw raw; | |
2685 | if (!msg->header) { | |
2686 | /* Pull OpenFlow header. */ | |
2687 | raw = ofpraw_pull_assert(msg); | |
2688 | ||
2689 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2690 | * doesn't have one at all). */ | |
2691 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2692 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2693 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2694 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2695 | } else { | |
2696 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2697 | } | |
2698 | } else { | |
2699 | raw = ofpraw_decode_assert(msg->header); | |
2700 | } | |
2701 | ||
2702 | queue->min_rate = UINT16_MAX; | |
2703 | queue->max_rate = UINT16_MAX; | |
2704 | ||
2705 | if (!msg->size) { | |
2706 | return EOF; | |
2707 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2708 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2709 | } else { | |
2710 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2711 | } | |
2712 | } | |
2713 | ||
2e4f5fcf | 2714 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2715 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2716 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2717 | enum ofperr |
81d1ea94 | 2718 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
8d8ab6c2 JG |
2719 | const struct ofp_header *oh, |
2720 | const struct tun_table *tun_table) | |
2e4f5fcf | 2721 | { |
0a2869d5 BP |
2722 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2723 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 2724 | switch ((int) raw) { |
cfc23141 | 2725 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2726 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2727 | |
617da9cd | 2728 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2729 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2730 | |
2731 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
8d8ab6c2 | 2732 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false, tun_table); |
2e4f5fcf | 2733 | |
617da9cd | 2734 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
8d8ab6c2 | 2735 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true, tun_table); |
617da9cd | 2736 | |
982697a4 | 2737 | case OFPRAW_NXST_FLOW_REQUEST: |
8d8ab6c2 | 2738 | return ofputil_decode_nxst_flow_request(fsr, &b, false, tun_table); |
2e4f5fcf | 2739 | |
982697a4 | 2740 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
8d8ab6c2 | 2741 | return ofputil_decode_nxst_flow_request(fsr, &b, true, tun_table); |
2e4f5fcf BP |
2742 | |
2743 | default: | |
2744 | /* Hey, the caller lied. */ | |
428b2edd | 2745 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2746 | } |
2747 | } | |
2748 | ||
2749 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2750 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2751 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2752 | struct ofpbuf * |
81d1ea94 | 2753 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2754 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2755 | { |
2756 | struct ofpbuf *msg; | |
982697a4 | 2757 | enum ofpraw raw; |
2e4f5fcf | 2758 | |
27527aa0 | 2759 | switch (protocol) { |
75fa58f8 | 2760 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2761 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2762 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2763 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2764 | case OFPUTIL_P_OF15_OXM: |
2765 | case OFPUTIL_P_OF16_OXM: { | |
06516c65 SH |
2766 | struct ofp11_flow_stats_request *ofsr; |
2767 | ||
2768 | raw = (fsr->aggregate | |
617da9cd | 2769 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2770 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2771 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2772 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2773 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2774 | ofsr->table_id = fsr->table_id; | |
2775 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2776 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2777 | ofsr->cookie = fsr->cookie; |
2778 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2779 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2780 | break; |
2781 | } | |
2782 | ||
85813857 BP |
2783 | case OFPUTIL_P_OF10_STD: |
2784 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2785 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2786 | |
982697a4 | 2787 | raw = (fsr->aggregate |
617da9cd | 2788 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2789 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2790 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2791 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2792 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2793 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2794 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2795 | break; |
2796 | } | |
2797 | ||
85813857 BP |
2798 | case OFPUTIL_P_OF10_NXM: |
2799 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2800 | struct nx_flow_stats_request *nfsr; |
2801 | int match_len; | |
2802 | ||
982697a4 BP |
2803 | raw = (fsr->aggregate |
2804 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2805 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2806 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2807 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2808 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2809 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2810 | |
6fd6ed71 | 2811 | nfsr = msg->msg; |
4e022ec0 | 2812 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2813 | nfsr->match_len = htons(match_len); |
2814 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2815 | break; |
2816 | } | |
2817 | ||
2818 | default: | |
428b2edd | 2819 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2820 | } |
2821 | ||
2822 | return msg; | |
2823 | } | |
d1e2cf21 | 2824 | |
4ffd1b43 | 2825 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2826 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2827 | * |
2828 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2829 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2830 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2831 | * pointers null and not modify them between calls. | |
2832 | * | |
f27f2134 BP |
2833 | * Most switches don't send the values needed to populate fs->idle_age and |
2834 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2835 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2836 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2837 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2838 | * | |
f25d0cf3 BP |
2839 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2840 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2841 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2842 | * | |
4ffd1b43 BP |
2843 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2844 | * otherwise a positive errno value. */ | |
2845 | int | |
2846 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2847 | struct ofpbuf *msg, |
f25d0cf3 BP |
2848 | bool flow_age_extension, |
2849 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2850 | { |
0fb88c18 | 2851 | const struct ofp_header *oh; |
8f2cded4 | 2852 | size_t instructions_len; |
982697a4 BP |
2853 | enum ofperr error; |
2854 | enum ofpraw raw; | |
4ffd1b43 | 2855 | |
6fd6ed71 | 2856 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2857 | : ofpraw_pull(&raw, msg)); |
2858 | if (error) { | |
2859 | return error; | |
4ffd1b43 | 2860 | } |
6fd6ed71 | 2861 | oh = msg->header; |
4ffd1b43 | 2862 | |
6fd6ed71 | 2863 | if (!msg->size) { |
4ffd1b43 | 2864 | return EOF; |
2e1ae200 JR |
2865 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2866 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2867 | const struct ofp11_flow_stats *ofs; |
2868 | size_t length; | |
2869 | uint16_t padded_match_len; | |
2870 | ||
2871 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2872 | if (!ofs) { | |
437d0d22 | 2873 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2874 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2875 | return EINVAL; |
2876 | } | |
2877 | ||
2878 | length = ntohs(ofs->length); | |
2879 | if (length < sizeof *ofs) { | |
2880 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2881 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2882 | return EINVAL; |
2883 | } | |
2884 | ||
8d8ab6c2 JG |
2885 | if (ofputil_pull_ofp11_match(msg, NULL, &fs->match, |
2886 | &padded_match_len)) { | |
6ec5f0c5 SH |
2887 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2888 | return EINVAL; | |
2889 | } | |
8f2cded4 | 2890 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2891 | |
81a76618 | 2892 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2893 | fs->table_id = ofs->table_id; |
2894 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2895 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2896 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2897 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2898 | if (oh->version >= OFP14_VERSION) { |
2899 | fs->importance = ntohs(ofs->importance); | |
2900 | } else { | |
2901 | fs->importance = 0; | |
2902 | } | |
0fb88c18 BP |
2903 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2904 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2905 | &fs->flags); | |
2906 | if (error) { | |
2907 | return error; | |
2908 | } | |
2909 | } else { | |
2910 | fs->flags = 0; | |
2911 | } | |
6ec5f0c5 SH |
2912 | fs->idle_age = -1; |
2913 | fs->hard_age = -1; | |
2914 | fs->cookie = ofs->cookie; | |
2915 | fs->packet_count = ntohll(ofs->packet_count); | |
2916 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2917 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2918 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2919 | size_t length; |
2920 | ||
2921 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2922 | if (!ofs) { | |
437d0d22 | 2923 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2924 | "bytes at end", msg->size); |
4ffd1b43 BP |
2925 | return EINVAL; |
2926 | } | |
2927 | ||
2928 | length = ntohs(ofs->length); | |
2929 | if (length < sizeof *ofs) { | |
2930 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2931 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2932 | return EINVAL; |
2933 | } | |
8f2cded4 | 2934 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2935 | |
2936 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2937 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2938 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2939 | fs->table_id = ofs->table_id; |
2940 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2941 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2942 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2943 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2944 | fs->importance = 0; |
f27f2134 BP |
2945 | fs->idle_age = -1; |
2946 | fs->hard_age = -1; | |
4ffd1b43 BP |
2947 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2948 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2949 | fs->flags = 0; |
982697a4 | 2950 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2951 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2952 | size_t match_len, length; |
4ffd1b43 BP |
2953 | |
2954 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2955 | if (!nfs) { | |
437d0d22 | 2956 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2957 | "bytes at end", msg->size); |
4ffd1b43 BP |
2958 | return EINVAL; |
2959 | } | |
2960 | ||
2961 | length = ntohs(nfs->length); | |
2962 | match_len = ntohs(nfs->match_len); | |
2963 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2964 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2965 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2966 | return EINVAL; |
2967 | } | |
8d8ab6c2 | 2968 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL, NULL)) { |
4ffd1b43 BP |
2969 | return EINVAL; |
2970 | } | |
8f2cded4 | 2971 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2972 | |
2973 | fs->cookie = nfs->cookie; | |
2974 | fs->table_id = nfs->table_id; | |
2975 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2976 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2977 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2978 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2979 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2980 | fs->importance = 0; |
f27f2134 BP |
2981 | fs->idle_age = -1; |
2982 | fs->hard_age = -1; | |
2983 | if (flow_age_extension) { | |
2984 | if (nfs->idle_age) { | |
2985 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2986 | } | |
2987 | if (nfs->hard_age) { | |
2988 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2989 | } | |
2990 | } | |
4ffd1b43 BP |
2991 | fs->packet_count = ntohll(nfs->packet_count); |
2992 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2993 | fs->flags = 0; |
4ffd1b43 | 2994 | } else { |
428b2edd | 2995 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2996 | } |
2997 | ||
8f2cded4 BP |
2998 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2999 | ofpacts)) { | |
3000 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
3001 | return EINVAL; | |
3002 | } | |
6fd6ed71 PS |
3003 | fs->ofpacts = ofpacts->data; |
3004 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3005 | |
4ffd1b43 BP |
3006 | return 0; |
3007 | } | |
3008 | ||
5e9d0469 BP |
3009 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3010 | * | |
3011 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3012 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3013 | static uint64_t | |
3014 | unknown_to_zero(uint64_t count) | |
3015 | { | |
3016 | return count != UINT64_MAX ? count : 0; | |
3017 | } | |
3018 | ||
349adfb2 BP |
3019 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3020 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3021 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3022 | void |
3023 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
8d8ab6c2 JG |
3024 | struct ovs_list *replies, |
3025 | const struct tun_table *tun_table) | |
349adfb2 | 3026 | { |
8d8ab6c2 JG |
3027 | struct ofputil_flow_stats *fs_ = CONST_CAST(struct ofputil_flow_stats *, |
3028 | fs); | |
3029 | const struct tun_table *orig_tun_table; | |
417e7e66 | 3030 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 3031 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3032 | enum ofp_version version = ofpmp_version(replies); |
3033 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3034 | |
8d8ab6c2 JG |
3035 | orig_tun_table = fs->match.flow.tunnel.metadata.tab; |
3036 | fs_->match.flow.tunnel.metadata.tab = tun_table; | |
3037 | ||
2e1ae200 | 3038 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3039 | struct ofp11_flow_stats *ofs; |
3040 | ||
3041 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3042 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3043 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3044 | version); | |
22a86f18 SH |
3045 | |
3046 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3047 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3048 | ofs->table_id = fs->table_id; |
3049 | ofs->pad = 0; | |
3050 | ofs->duration_sec = htonl(fs->duration_sec); | |
3051 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3052 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3053 | ofs->idle_timeout = htons(fs->idle_timeout); |
3054 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3055 | if (version >= OFP14_VERSION) { |
3056 | ofs->importance = htons(fs->importance); | |
3057 | } else { | |
3058 | ofs->importance = 0; | |
3059 | } | |
0fb88c18 | 3060 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3061 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3062 | } else { |
3063 | ofs->flags = 0; | |
3064 | } | |
22a86f18 SH |
3065 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3066 | ofs->cookie = fs->cookie; | |
3067 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3068 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3069 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3070 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3071 | |
1a59dc2c | 3072 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3073 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3074 | version); | |
1a59dc2c | 3075 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3076 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3077 | ofs->table_id = fs->table_id; |
3078 | ofs->pad = 0; | |
81a76618 | 3079 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3080 | ofs->duration_sec = htonl(fs->duration_sec); |
3081 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3082 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3083 | ofs->idle_timeout = htons(fs->idle_timeout); |
3084 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3085 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3086 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3087 | put_32aligned_be64(&ofs->packet_count, |
3088 | htonll(unknown_to_zero(fs->packet_count))); | |
3089 | put_32aligned_be64(&ofs->byte_count, | |
3090 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3091 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3092 | struct nx_flow_stats *nfs; |
1a59dc2c | 3093 | int match_len; |
349adfb2 | 3094 | |
1a59dc2c | 3095 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3096 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3097 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3098 | version); | |
1a59dc2c | 3099 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3100 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3101 | nfs->table_id = fs->table_id; |
3102 | nfs->pad = 0; | |
3103 | nfs->duration_sec = htonl(fs->duration_sec); | |
3104 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3105 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3106 | nfs->idle_timeout = htons(fs->idle_timeout); |
3107 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3108 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3109 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3110 | : UINT16_MAX); | |
3111 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3112 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3113 | : UINT16_MAX); | |
1a59dc2c | 3114 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3115 | nfs->cookie = fs->cookie; |
3116 | nfs->packet_count = htonll(fs->packet_count); | |
3117 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3118 | } else { |
428b2edd | 3119 | OVS_NOT_REACHED(); |
349adfb2 | 3120 | } |
f25d0cf3 | 3121 | |
982697a4 | 3122 | ofpmp_postappend(replies, start_ofs); |
8d8ab6c2 | 3123 | fs_->match.flow.tunnel.metadata.tab = orig_tun_table; |
349adfb2 BP |
3124 | } |
3125 | ||
76c93b22 | 3126 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3127 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3128 | struct ofpbuf * |
3129 | ofputil_encode_aggregate_stats_reply( | |
3130 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3131 | const struct ofp_header *request) |
76c93b22 | 3132 | { |
a814ba0f BP |
3133 | struct ofp_aggregate_stats_reply *asr; |
3134 | uint64_t packet_count; | |
3135 | uint64_t byte_count; | |
76c93b22 | 3136 | struct ofpbuf *msg; |
982697a4 | 3137 | enum ofpraw raw; |
76c93b22 | 3138 | |
982697a4 | 3139 | ofpraw_decode(&raw, request); |
617da9cd | 3140 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3141 | packet_count = unknown_to_zero(stats->packet_count); |
3142 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3143 | } else { |
a814ba0f BP |
3144 | packet_count = stats->packet_count; |
3145 | byte_count = stats->byte_count; | |
76c93b22 BP |
3146 | } |
3147 | ||
a814ba0f BP |
3148 | msg = ofpraw_alloc_stats_reply(request, 0); |
3149 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3150 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3151 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3152 | asr->flow_count = htonl(stats->flow_count); | |
3153 | ||
76c93b22 BP |
3154 | return msg; |
3155 | } | |
3156 | ||
982697a4 BP |
3157 | enum ofperr |
3158 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3159 | const struct ofp_header *reply) | |
3160 | { | |
0a2869d5 | 3161 | struct ofpbuf msg = ofpbuf_const_initializer(reply, ntohs(reply->length)); |
a814ba0f BP |
3162 | ofpraw_pull_assert(&msg); |
3163 | ||
0a2869d5 | 3164 | struct ofp_aggregate_stats_reply *asr = msg.msg; |
a814ba0f BP |
3165 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3166 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3167 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3168 | |
3169 | return 0; | |
3170 | } | |
3171 | ||
b78f6b77 BP |
3172 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3173 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3174 | * an OpenFlow error code. */ | |
90bf1e07 | 3175 | enum ofperr |
9b045a0c | 3176 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3177 | const struct ofp_header *oh) |
9b045a0c | 3178 | { |
0a2869d5 BP |
3179 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3180 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3181 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3182 | const struct ofp12_flow_removed *ofr; | |
3183 | enum ofperr error; | |
3184 | ||
3185 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3186 | ||
8d8ab6c2 | 3187 | error = ofputil_pull_ofp11_match(&b, NULL, &fr->match, NULL); |
eefbf181 SH |
3188 | if (error) { |
3189 | return error; | |
3190 | } | |
3191 | ||
81a76618 | 3192 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3193 | fr->cookie = ofr->cookie; |
3194 | fr->reason = ofr->reason; | |
95216219 | 3195 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3196 | fr->duration_sec = ntohl(ofr->duration_sec); |
3197 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3198 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3199 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3200 | fr->packet_count = ntohll(ofr->packet_count); | |
3201 | fr->byte_count = ntohll(ofr->byte_count); | |
3202 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3203 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3204 | |
982697a4 BP |
3205 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3206 | ||
81a76618 BP |
3207 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3208 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3209 | fr->cookie = ofr->cookie; |
3210 | fr->reason = ofr->reason; | |
95216219 | 3211 | fr->table_id = 255; |
9b045a0c BP |
3212 | fr->duration_sec = ntohl(ofr->duration_sec); |
3213 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3214 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3215 | fr->hard_timeout = 0; |
9b045a0c BP |
3216 | fr->packet_count = ntohll(ofr->packet_count); |
3217 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3218 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3219 | struct nx_flow_removed *nfr; |
c2725b60 | 3220 | enum ofperr error; |
9b045a0c | 3221 | |
9b045a0c | 3222 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
8d8ab6c2 | 3223 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, NULL, |
81a76618 | 3224 | NULL, NULL); |
9b045a0c BP |
3225 | if (error) { |
3226 | return error; | |
3227 | } | |
6fd6ed71 | 3228 | if (b.size) { |
90bf1e07 | 3229 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3230 | } |
3231 | ||
81a76618 | 3232 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3233 | fr->cookie = nfr->cookie; |
3234 | fr->reason = nfr->reason; | |
745bfd5e | 3235 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3236 | fr->duration_sec = ntohl(nfr->duration_sec); |
3237 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3238 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3239 | fr->hard_timeout = 0; |
9b045a0c BP |
3240 | fr->packet_count = ntohll(nfr->packet_count); |
3241 | fr->byte_count = ntohll(nfr->byte_count); | |
3242 | } else { | |
428b2edd | 3243 | OVS_NOT_REACHED(); |
9b045a0c BP |
3244 | } |
3245 | ||
3246 | return 0; | |
3247 | } | |
3248 | ||
588cd7b5 | 3249 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3250 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3251 | * message. */ |
3252 | struct ofpbuf * | |
3253 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3254 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3255 | { |
3256 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3257 | enum ofp_flow_removed_reason reason = fr->reason; |
3258 | ||
3259 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3260 | reason = OFPRR_DELETE; | |
3261 | } | |
588cd7b5 | 3262 | |
27527aa0 | 3263 | switch (protocol) { |
75fa58f8 | 3264 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3265 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3266 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 3267 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
3268 | case OFPUTIL_P_OF15_OXM: |
3269 | case OFPUTIL_P_OF16_OXM: { | |
83974732 SH |
3270 | struct ofp12_flow_removed *ofr; |
3271 | ||
3272 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3273 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3274 | htonl(0), |
3275 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3276 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3277 | ofr->cookie = fr->cookie; | |
81a76618 | 3278 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3279 | ofr->reason = reason; |
95216219 | 3280 | ofr->table_id = fr->table_id; |
83974732 SH |
3281 | ofr->duration_sec = htonl(fr->duration_sec); |
3282 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3283 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3284 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3285 | ofr->packet_count = htonll(fr->packet_count); |
3286 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3287 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3288 | break; |
3289 | } | |
3290 | ||
85813857 BP |
3291 | case OFPUTIL_P_OF10_STD: |
3292 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3293 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3294 | |
982697a4 BP |
3295 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3296 | htonl(0), 0); | |
3297 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3298 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3299 | ofr->cookie = fr->cookie; |
81a76618 | 3300 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3301 | ofr->reason = reason; |
588cd7b5 BP |
3302 | ofr->duration_sec = htonl(fr->duration_sec); |
3303 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3304 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3305 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3306 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3307 | break; |
3308 | } | |
3309 | ||
85813857 BP |
3310 | case OFPUTIL_P_OF10_NXM: |
3311 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3312 | struct nx_flow_removed *nfr; |
3313 | int match_len; | |
3314 | ||
982697a4 BP |
3315 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3316 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3317 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3318 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3319 | |
6fd6ed71 | 3320 | nfr = msg->msg; |
588cd7b5 | 3321 | nfr->cookie = fr->cookie; |
81a76618 | 3322 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3323 | nfr->reason = reason; |
745bfd5e | 3324 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3325 | nfr->duration_sec = htonl(fr->duration_sec); |
3326 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3327 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3328 | nfr->match_len = htons(match_len); | |
3329 | nfr->packet_count = htonll(fr->packet_count); | |
3330 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3331 | break; |
3332 | } | |
3333 | ||
3334 | default: | |
428b2edd | 3335 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3336 | } |
3337 | ||
3338 | return msg; | |
3339 | } | |
3340 | ||
6409e008 BP |
3341 | /* The caller has done basic initialization of '*pin'; the other output |
3342 | * arguments needs to be initialized. */ | |
3343 | static enum ofperr | |
77ab5fd2 | 3344 | decode_nx_packet_in2(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3345 | const struct tun_table *tun_table, |
6409e008 | 3346 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3347 | size_t *total_len, uint32_t *buffer_id, |
3348 | struct ofpbuf *continuation) | |
6409e008 BP |
3349 | { |
3350 | *total_len = 0; | |
3351 | *buffer_id = UINT32_MAX; | |
3352 | ||
3353 | struct ofpbuf properties; | |
3354 | ofpbuf_use_const(&properties, oh, ntohs(oh->length)); | |
3355 | ofpraw_pull_assert(&properties); | |
3356 | ||
3357 | while (properties.size > 0) { | |
3358 | struct ofpbuf payload; | |
3359 | uint64_t type; | |
3360 | ||
3361 | enum ofperr error = ofpprop_pull(&properties, &payload, &type); | |
3362 | if (error) { | |
3363 | return error; | |
3364 | } | |
3365 | ||
3366 | switch (type) { | |
3367 | case NXPINT_PACKET: | |
3368 | pin->packet = payload.msg; | |
4adaf182 | 3369 | pin->packet_len = ofpbuf_msgsize(&payload); |
6409e008 BP |
3370 | break; |
3371 | ||
3372 | case NXPINT_FULL_LEN: { | |
3373 | uint32_t u32; | |
3374 | error = ofpprop_parse_u32(&payload, &u32); | |
3375 | *total_len = u32; | |
3376 | break; | |
3377 | } | |
3378 | ||
3379 | case NXPINT_BUFFER_ID: | |
3380 | error = ofpprop_parse_u32(&payload, buffer_id); | |
3381 | break; | |
3382 | ||
3383 | case NXPINT_TABLE_ID: | |
3384 | error = ofpprop_parse_u8(&payload, &pin->table_id); | |
3385 | break; | |
3386 | ||
3387 | case NXPINT_COOKIE: | |
3388 | error = ofpprop_parse_be64(&payload, &pin->cookie); | |
3389 | break; | |
3390 | ||
3391 | case NXPINT_REASON: { | |
3392 | uint8_t reason; | |
3393 | error = ofpprop_parse_u8(&payload, &reason); | |
3394 | pin->reason = reason; | |
3395 | break; | |
3396 | } | |
3397 | ||
3398 | case NXPINT_METADATA: | |
3399 | error = oxm_decode_match(payload.msg, ofpbuf_msgsize(&payload), | |
8d8ab6c2 | 3400 | tun_table, &pin->flow_metadata); |
6409e008 BP |
3401 | break; |
3402 | ||
bdcad671 BP |
3403 | case NXPINT_USERDATA: |
3404 | pin->userdata = payload.msg; | |
3405 | pin->userdata_len = ofpbuf_msgsize(&payload); | |
3406 | break; | |
3407 | ||
77ab5fd2 BP |
3408 | case NXPINT_CONTINUATION: |
3409 | if (continuation) { | |
3410 | error = ofpprop_parse_nested(&payload, continuation); | |
3411 | } | |
3412 | break; | |
3413 | ||
6409e008 | 3414 | default: |
77ab5fd2 | 3415 | error = OFPPROP_UNKNOWN(loose, "NX_PACKET_IN2", type); |
6409e008 BP |
3416 | break; |
3417 | } | |
3418 | if (error) { | |
3419 | return error; | |
3420 | } | |
3421 | } | |
3422 | ||
4adaf182 | 3423 | if (!pin->packet_len) { |
6409e008 BP |
3424 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 lacks packet"); |
3425 | return OFPERR_OFPBRC_BAD_LEN; | |
3426 | } else if (!*total_len) { | |
4adaf182 BP |
3427 | *total_len = pin->packet_len; |
3428 | } else if (*total_len < pin->packet_len) { | |
6409e008 BP |
3429 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 claimed full_len < len"); |
3430 | return OFPERR_OFPBRC_BAD_LEN; | |
3431 | } | |
3432 | ||
3433 | return 0; | |
3434 | } | |
3435 | ||
9bfe9334 | 3436 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
77ab5fd2 BP |
3437 | * 'pin->packet' and 'pin->packet_len' with the part of the packet actually |
3438 | * included in the message. If 'total_lenp' is nonnull, populates | |
3439 | * '*total_lenp' with the original length of the packet (which is larger than | |
3440 | * 'packet->len' if only part of the packet was included). If 'buffer_idp' is | |
3441 | * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it | |
9bfe9334 BP |
3442 | * was not buffered). |
3443 | * | |
77ab5fd2 BP |
3444 | * Populates 'continuation', if nonnull, with the continuation data from the |
3445 | * packet-in (an empty buffer, if 'oh' did not contain continuation data). The | |
3446 | * format of this data is supposed to be opaque to anything other than | |
3447 | * ovs-vswitchd, so that in any other process the only reasonable use of this | |
3448 | * data is to be copied into an NXT_RESUME message via ofputil_encode_resume(). | |
3449 | * | |
3450 | * This function points 'pin->packet' into 'oh', so the caller should not free | |
3451 | * it separately from the original OpenFlow message. This is also true for | |
3452 | * 'pin->userdata' (which could also end up NULL if there is no userdata). | |
3453 | * | |
9bfe9334 | 3454 | * Returns 0 if successful, otherwise an OpenFlow error code. */ |
f7cc6bd8 | 3455 | enum ofperr |
77ab5fd2 | 3456 | ofputil_decode_packet_in(const struct ofp_header *oh, bool loose, |
8d8ab6c2 | 3457 | const struct tun_table *tun_table, |
9bfe9334 | 3458 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3459 | size_t *total_lenp, uint32_t *buffer_idp, |
3460 | struct ofpbuf *continuation) | |
65120a8a | 3461 | { |
77ab5fd2 BP |
3462 | uint32_t buffer_id; |
3463 | size_t total_len; | |
3464 | ||
65120a8a | 3465 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3466 | pin->cookie = OVS_BE64_MAX; |
77ab5fd2 BP |
3467 | if (continuation) { |
3468 | ofpbuf_use_const(continuation, NULL, 0); | |
3469 | } | |
65120a8a | 3470 | |
0a2869d5 BP |
3471 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3472 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3473 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3474 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3475 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3476 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3477 | : NULL); | |
8d8ab6c2 JG |
3478 | enum ofperr error = oxm_pull_match_loose(&b, tun_table, |
3479 | &pin->flow_metadata); | |
7cfb9651 SH |
3480 | if (error) { |
3481 | return error; | |
3482 | } | |
3483 | ||
3484 | if (!ofpbuf_try_pull(&b, 2)) { | |
3485 | return OFPERR_OFPBRC_BAD_LEN; | |
3486 | } | |
3487 | ||
43948fa5 BP |
3488 | pin->reason = opi->reason; |
3489 | pin->table_id = opi->table_id; | |
77ab5fd2 BP |
3490 | buffer_id = ntohl(opi->buffer_id); |
3491 | total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3492 | if (cookie) { |
3493 | pin->cookie = *cookie; | |
2e1ae200 | 3494 | } |
7cfb9651 | 3495 | |
50dcbd8e | 3496 | pin->packet = b.data; |
4adaf182 | 3497 | pin->packet_len = b.size; |
7cfb9651 | 3498 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3499 | const struct ofp10_packet_in *opi; |
982697a4 | 3500 | |
31a9e63f | 3501 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a | 3502 | |
95022b47 | 3503 | pin->packet = CONST_CAST(uint8_t *, opi->data); |
4adaf182 | 3504 | pin->packet_len = b.size; |
65120a8a | 3505 | |
50dcbd8e | 3506 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3507 | match_set_in_port(&pin->flow_metadata, |
3508 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3509 | pin->reason = opi->reason; |
77ab5fd2 BP |
3510 | buffer_id = ntohl(opi->buffer_id); |
3511 | total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3512 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3513 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3514 | ofp_port_t in_port; |
4d197ebb BP |
3515 | enum ofperr error; |
3516 | ||
3517 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3518 | ||
6fd6ed71 | 3519 | pin->packet = b.data; |
4adaf182 | 3520 | pin->packet_len = b.size; |
4d197ebb | 3521 | |
77ab5fd2 | 3522 | buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3523 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3524 | if (error) { |
3525 | return error; | |
3526 | } | |
50dcbd8e JG |
3527 | match_init_catchall(&pin->flow_metadata); |
3528 | match_set_in_port(&pin->flow_metadata, in_port); | |
77ab5fd2 | 3529 | total_len = ntohs(opi->total_len); |
4d197ebb BP |
3530 | pin->reason = opi->reason; |
3531 | pin->table_id = opi->table_id; | |
982697a4 | 3532 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3533 | const struct nx_packet_in *npi; |
54834960 EJ |
3534 | int error; |
3535 | ||
54834960 | 3536 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e | 3537 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
8d8ab6c2 | 3538 | &pin->flow_metadata, NULL, NULL, NULL); |
54834960 EJ |
3539 | if (error) { |
3540 | return error; | |
3541 | } | |
3542 | ||
3543 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3544 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3545 | } |
3546 | ||
54834960 EJ |
3547 | pin->reason = npi->reason; |
3548 | pin->table_id = npi->table_id; | |
3549 | pin->cookie = npi->cookie; | |
3550 | ||
77ab5fd2 BP |
3551 | buffer_id = ntohl(npi->buffer_id); |
3552 | total_len = ntohs(npi->total_len); | |
7cfb9651 | 3553 | |
50dcbd8e | 3554 | pin->packet = b.data; |
4adaf182 | 3555 | pin->packet_len = b.size; |
77ab5fd2 | 3556 | } else if (raw == OFPRAW_NXT_PACKET_IN2 || raw == OFPRAW_NXT_RESUME) { |
8d8ab6c2 JG |
3557 | enum ofperr error = decode_nx_packet_in2(oh, loose, tun_table, pin, |
3558 | &total_len, &buffer_id, | |
3559 | continuation); | |
77ab5fd2 BP |
3560 | if (error) { |
3561 | return error; | |
3562 | } | |
65120a8a | 3563 | } else { |
428b2edd | 3564 | OVS_NOT_REACHED(); |
65120a8a EJ |
3565 | } |
3566 | ||
77ab5fd2 BP |
3567 | if (total_lenp) { |
3568 | *total_lenp = total_len; | |
3569 | } | |
3570 | if (buffer_idp) { | |
3571 | *buffer_idp = buffer_id; | |
3572 | } | |
3573 | ||
65120a8a EJ |
3574 | return 0; |
3575 | } | |
3576 | ||
9bfe9334 BP |
3577 | static int |
3578 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3579 | enum ofp_version version) | |
3580 | { | |
3581 | switch (reason) { | |
3582 | case OFPR_NO_MATCH: | |
3583 | case OFPR_ACTION: | |
3584 | case OFPR_INVALID_TTL: | |
3585 | return reason; | |
3586 | ||
3587 | case OFPR_ACTION_SET: | |
3588 | case OFPR_GROUP: | |
3589 | case OFPR_PACKET_OUT: | |
3590 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3591 | ||
3592 | case OFPR_EXPLICIT_MISS: | |
3593 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3594 | ||
3595 | case OFPR_IMPLICIT_MISS: | |
3596 | return OFPR_NO_MATCH; | |
3597 | ||
3598 | case OFPR_N_REASONS: | |
3599 | default: | |
3600 | OVS_NOT_REACHED(); | |
3601 | } | |
3602 | } | |
3603 | ||
77ab5fd2 BP |
3604 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this |
3605 | * function omits it. The caller can add it itself if desired. */ | |
3606 | static void | |
3607 | ofputil_put_packet_in(const struct ofputil_packet_in *pin, | |
c184807c JR |
3608 | enum ofp_version version, size_t include_bytes, |
3609 | struct ofpbuf *msg) | |
77ab5fd2 BP |
3610 | { |
3611 | /* Add packet properties. */ | |
3612 | ofpprop_put(msg, NXPINT_PACKET, pin->packet, include_bytes); | |
3613 | if (include_bytes != pin->packet_len) { | |
3614 | ofpprop_put_u32(msg, NXPINT_FULL_LEN, pin->packet_len); | |
3615 | } | |
77ab5fd2 BP |
3616 | |
3617 | /* Add flow properties. */ | |
3618 | ofpprop_put_u8(msg, NXPINT_TABLE_ID, pin->table_id); | |
3619 | if (pin->cookie != OVS_BE64_MAX) { | |
3620 | ofpprop_put_be64(msg, NXPINT_COOKIE, pin->cookie); | |
3621 | } | |
3622 | ||
3623 | /* Add other properties. */ | |
3624 | ofpprop_put_u8(msg, NXPINT_REASON, | |
3625 | encode_packet_in_reason(pin->reason, version)); | |
3626 | ||
3627 | size_t start = ofpprop_start(msg, NXPINT_METADATA); | |
3628 | oxm_put_raw(msg, &pin->flow_metadata, version); | |
3629 | ofpprop_end(msg, start); | |
3630 | } | |
3631 | ||
3632 | static void | |
3633 | put_actions_property(struct ofpbuf *msg, uint64_t prop_type, | |
3634 | enum ofp_version version, | |
3635 | const struct ofpact *actions, size_t actions_len) | |
3636 | { | |
3637 | if (actions_len) { | |
3638 | size_t start = ofpprop_start_nested(msg, prop_type); | |
3639 | ofpacts_put_openflow_actions(actions, actions_len, msg, version); | |
3640 | ofpprop_end(msg, start); | |
3641 | } | |
3642 | } | |
3643 | ||
3644 | enum nx_continuation_prop_type { | |
3645 | NXCPT_BRIDGE = 0x8000, | |
3646 | NXCPT_STACK, | |
3647 | NXCPT_MIRRORS, | |
3648 | NXCPT_CONNTRACKED, | |
3649 | NXCPT_TABLE_ID, | |
3650 | NXCPT_COOKIE, | |
3651 | NXCPT_ACTIONS, | |
3652 | NXCPT_ACTION_SET, | |
3653 | }; | |
3654 | ||
3655 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this | |
3656 | * function omits it. The caller can add it itself if desired. */ | |
3657 | static void | |
3658 | ofputil_put_packet_in_private(const struct ofputil_packet_in_private *pin, | |
c184807c JR |
3659 | enum ofp_version version, size_t include_bytes, |
3660 | struct ofpbuf *msg) | |
77ab5fd2 | 3661 | { |
c184807c | 3662 | ofputil_put_packet_in(&pin->public, version, include_bytes, msg); |
77ab5fd2 BP |
3663 | |
3664 | size_t continuation_ofs = ofpprop_start_nested(msg, NXPINT_CONTINUATION); | |
3665 | size_t inner_ofs = msg->size; | |
3666 | ||
3667 | if (!uuid_is_zero(&pin->bridge)) { | |
3668 | ofpprop_put_uuid(msg, NXCPT_BRIDGE, &pin->bridge); | |
3669 | } | |
3670 | ||
3671 | for (size_t i = 0; i < pin->n_stack; i++) { | |
3672 | const union mf_subvalue *s = &pin->stack[i]; | |
3673 | size_t ofs; | |
3674 | for (ofs = 0; ofs < sizeof *s; ofs++) { | |
3675 | if (s->u8[ofs]) { | |
3676 | break; | |
3677 | } | |
3678 | } | |
3679 | ||
3680 | ofpprop_put(msg, NXCPT_STACK, &s->u8[ofs], sizeof *s - ofs); | |
3681 | } | |
3682 | ||
3683 | if (pin->mirrors) { | |
3684 | ofpprop_put_u32(msg, NXCPT_MIRRORS, pin->mirrors); | |
3685 | } | |
3686 | ||
3687 | if (pin->conntracked) { | |
3688 | ofpprop_put_flag(msg, NXCPT_CONNTRACKED); | |
3689 | } | |
3690 | ||
3691 | if (pin->actions_len) { | |
3692 | /* Divide 'pin->actions' into groups that begins with an | |
3693 | * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and | |
3694 | * NXCPT_COOKIE property (if either has changed; each is initially | |
3695 | * assumed 0), then a NXCPT_ACTIONS property with the grouped | |
3696 | * actions. | |
3697 | * | |
3698 | * The alternative is to make OFPACT_UNROLL_XLATE public. We can | |
3699 | * always do that later, since this is a private property. */ | |
3700 | const struct ofpact *const end = ofpact_end(pin->actions, | |
3701 | pin->actions_len); | |
3702 | const struct ofpact_unroll_xlate *unroll = NULL; | |
3703 | uint8_t table_id = 0; | |
3704 | ovs_be64 cookie = 0; | |
3705 | ||
3706 | const struct ofpact *a; | |
3707 | for (a = pin->actions; ; a = ofpact_next(a)) { | |
3708 | if (a == end || a->type == OFPACT_UNROLL_XLATE) { | |
3709 | if (unroll) { | |
3710 | if (table_id != unroll->rule_table_id) { | |
3711 | ofpprop_put_u8(msg, NXCPT_TABLE_ID, | |
3712 | unroll->rule_table_id); | |
3713 | table_id = unroll->rule_table_id; | |
3714 | } | |
3715 | if (cookie != unroll->rule_cookie) { | |
3716 | ofpprop_put_be64(msg, NXCPT_COOKIE, | |
3717 | unroll->rule_cookie); | |
3718 | cookie = unroll->rule_cookie; | |
3719 | } | |
3720 | } | |
3721 | ||
3722 | const struct ofpact *start | |
3723 | = unroll ? ofpact_next(&unroll->ofpact) : pin->actions; | |
3724 | put_actions_property(msg, NXCPT_ACTIONS, version, | |
3725 | start, (a - start) * sizeof *a); | |
3726 | ||
3727 | if (a == end) { | |
3728 | break; | |
3729 | } | |
3730 | unroll = ofpact_get_UNROLL_XLATE(a); | |
3731 | } | |
3732 | } | |
3733 | } | |
3734 | ||
3735 | if (pin->action_set_len) { | |
3736 | size_t start = ofpprop_start_nested(msg, NXCPT_ACTION_SET); | |
3737 | ofpacts_put_openflow_actions(pin->action_set, | |
3738 | pin->action_set_len, msg, version); | |
3739 | ofpprop_end(msg, start); | |
3740 | } | |
3741 | ||
3742 | if (msg->size > inner_ofs) { | |
3743 | ofpprop_end(msg, continuation_ofs); | |
3744 | } else { | |
3745 | msg->size = continuation_ofs; | |
3746 | } | |
3747 | } | |
3748 | ||
0f83fea0 | 3749 | static struct ofpbuf * |
c184807c | 3750 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) |
0f83fea0 BP |
3751 | { |
3752 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3753 | struct ofpbuf *msg; |
0f83fea0 | 3754 | |
9bfe9334 | 3755 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
4adaf182 | 3756 | htonl(0), pin->packet_len); |
9bfe9334 | 3757 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); |
4adaf182 | 3758 | opi->total_len = htons(pin->packet_len); |
50dcbd8e | 3759 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 | 3760 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
c184807c | 3761 | opi->buffer_id = htonl(UINT32_MAX); |
0f83fea0 | 3762 | |
9bfe9334 | 3763 | return msg; |
0f83fea0 BP |
3764 | } |
3765 | ||
3766 | static struct ofpbuf * | |
9bfe9334 | 3767 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
c184807c | 3768 | enum ofp_version version) |
0f83fea0 BP |
3769 | { |
3770 | struct nx_packet_in *npi; | |
9bfe9334 | 3771 | struct ofpbuf *msg; |
0f83fea0 BP |
3772 | size_t match_len; |
3773 | ||
0f83fea0 | 3774 | /* The final argument is just an estimate of the space required. */ |
6409e008 | 3775 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, version, |
4adaf182 | 3776 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
9bfe9334 BP |
3777 | ofpbuf_put_zeros(msg, sizeof *npi); |
3778 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3779 | ofpbuf_put_zeros(msg, 2); | |
3780 | ||
3781 | npi = msg->msg; | |
c184807c | 3782 | npi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3783 | npi->total_len = htons(pin->packet_len); |
6409e008 | 3784 | npi->reason = encode_packet_in_reason(pin->reason, version); |
0f83fea0 BP |
3785 | npi->table_id = pin->table_id; |
3786 | npi->cookie = pin->cookie; | |
3787 | npi->match_len = htons(match_len); | |
3788 | ||
9bfe9334 | 3789 | return msg; |
0f83fea0 BP |
3790 | } |
3791 | ||
6409e008 | 3792 | static struct ofpbuf * |
77ab5fd2 | 3793 | ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private *pin, |
c184807c | 3794 | enum ofp_version version, size_t include_bytes) |
6409e008 BP |
3795 | { |
3796 | /* 'extra' is just an estimate of the space required. */ | |
77ab5fd2 BP |
3797 | size_t extra = (pin->public.packet_len |
3798 | + NXM_TYPICAL_LEN /* flow_metadata */ | |
3799 | + pin->n_stack * 16 | |
3800 | + pin->actions_len | |
3801 | + pin->action_set_len | |
3802 | + 256); /* fudge factor */ | |
6409e008 BP |
3803 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2, version, |
3804 | htonl(0), extra); | |
3805 | ||
c184807c | 3806 | ofputil_put_packet_in_private(pin, version, include_bytes, msg); |
77ab5fd2 BP |
3807 | if (pin->public.userdata_len) { |
3808 | ofpprop_put(msg, NXPINT_USERDATA, pin->public.userdata, | |
3809 | pin->public.userdata_len); | |
bdcad671 BP |
3810 | } |
3811 | ||
6409e008 BP |
3812 | ofpmsg_update_length(msg); |
3813 | return msg; | |
3814 | } | |
3815 | ||
4d197ebb | 3816 | static struct ofpbuf * |
c184807c | 3817 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) |
4d197ebb BP |
3818 | { |
3819 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3820 | struct ofpbuf *msg; |
4d197ebb | 3821 | |
9bfe9334 | 3822 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
4adaf182 | 3823 | htonl(0), pin->packet_len); |
9bfe9334 | 3824 | opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3825 | opi->buffer_id = htonl(UINT32_MAX); |
9bfe9334 BP |
3826 | opi->in_port = ofputil_port_to_ofp11( |
3827 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3828 | opi->in_phy_port = opi->in_port; |
4adaf182 | 3829 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3830 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); |
4d197ebb BP |
3831 | opi->table_id = pin->table_id; |
3832 | ||
9bfe9334 | 3833 | return msg; |
4d197ebb BP |
3834 | } |
3835 | ||
0f83fea0 BP |
3836 | static struct ofpbuf * |
3837 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
c184807c | 3838 | enum ofp_version version) |
0f83fea0 | 3839 | { |
43948fa5 BP |
3840 | enum ofpraw raw = (version >= OFP13_VERSION |
3841 | ? OFPRAW_OFPT13_PACKET_IN | |
3842 | : OFPRAW_OFPT12_PACKET_IN); | |
3843 | struct ofpbuf *msg; | |
0f83fea0 | 3844 | |
0f83fea0 | 3845 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3846 | msg = ofpraw_alloc_xid(raw, version, |
4adaf182 | 3847 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3848 | |
43948fa5 | 3849 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
c184807c | 3850 | opi->buffer_id = htonl(UINT32_MAX); |
4adaf182 | 3851 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3852 | opi->reason = encode_packet_in_reason(pin->reason, version); |
43948fa5 | 3853 | opi->table_id = pin->table_id; |
9bfe9334 | 3854 | |
43948fa5 BP |
3855 | if (version >= OFP13_VERSION) { |
3856 | ovs_be64 cookie = pin->cookie; | |
3857 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3858 | } |
3859 | ||
43948fa5 BP |
3860 | oxm_put_match(msg, &pin->flow_metadata, version); |
3861 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3862 | |
3863 | return msg; | |
0f83fea0 BP |
3864 | } |
3865 | ||
77ab5fd2 BP |
3866 | /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message |
3867 | * for 'protocol', using the packet-in format specified by 'packet_in_format'. | |
9bfe9334 | 3868 | * |
77ab5fd2 BP |
3869 | * This function is really meant only for use by ovs-vswitchd. To any other |
3870 | * code, the "continuation" data, i.e. the data that is in struct | |
3871 | * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed | |
3872 | * to be opaque (and it might change from one OVS version to another). Thus, | |
3873 | * if any other code wants to encode a packet-in, it should use a non-"private" | |
3874 | * version of this function. (Such a version doesn't currently exist because | |
3875 | * only ovs-vswitchd currently wants to encode packet-ins. If you need one, | |
3876 | * write it...) */ | |
ebb57021 | 3877 | struct ofpbuf * |
77ab5fd2 BP |
3878 | ofputil_encode_packet_in_private(const struct ofputil_packet_in_private *pin, |
3879 | enum ofputil_protocol protocol, | |
c184807c | 3880 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3881 | { |
9bfe9334 BP |
3882 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3883 | ||
9bfe9334 | 3884 | struct ofpbuf *msg; |
6409e008 BP |
3885 | switch (packet_in_format) { |
3886 | case NXPIF_STANDARD: | |
3887 | switch (protocol) { | |
3888 | case OFPUTIL_P_OF10_STD: | |
3889 | case OFPUTIL_P_OF10_STD_TID: | |
3890 | case OFPUTIL_P_OF10_NXM: | |
3891 | case OFPUTIL_P_OF10_NXM_TID: | |
c184807c | 3892 | msg = ofputil_encode_ofp10_packet_in(&pin->public); |
6409e008 | 3893 | break; |
2e1ae200 | 3894 | |
6409e008 | 3895 | case OFPUTIL_P_OF11_STD: |
c184807c | 3896 | msg = ofputil_encode_ofp11_packet_in(&pin->public); |
6409e008 BP |
3897 | break; |
3898 | ||
3899 | case OFPUTIL_P_OF12_OXM: | |
3900 | case OFPUTIL_P_OF13_OXM: | |
3901 | case OFPUTIL_P_OF14_OXM: | |
3902 | case OFPUTIL_P_OF15_OXM: | |
b79d45a1 | 3903 | case OFPUTIL_P_OF16_OXM: |
c184807c | 3904 | msg = ofputil_encode_ofp12_packet_in(&pin->public, version); |
6409e008 BP |
3905 | break; |
3906 | ||
3907 | default: | |
3908 | OVS_NOT_REACHED(); | |
3909 | } | |
4d197ebb | 3910 | break; |
d94240ec | 3911 | |
6409e008 | 3912 | case NXPIF_NXT_PACKET_IN: |
c184807c | 3913 | msg = ofputil_encode_nx_packet_in(&pin->public, version); |
0f83fea0 BP |
3914 | break; |
3915 | ||
6409e008 | 3916 | case NXPIF_NXT_PACKET_IN2: |
c184807c JR |
3917 | return ofputil_encode_nx_packet_in2(pin, version, |
3918 | pin->public.packet_len); | |
6409e008 | 3919 | |
0f83fea0 | 3920 | default: |
428b2edd | 3921 | OVS_NOT_REACHED(); |
54834960 | 3922 | } |
54834960 | 3923 | |
c184807c | 3924 | ofpbuf_put(msg, pin->public.packet, pin->public.packet_len); |
9bfe9334 BP |
3925 | ofpmsg_update_length(msg); |
3926 | return msg; | |
ebb57021 BP |
3927 | } |
3928 | ||
5014a89d BP |
3929 | /* Returns a string form of 'reason'. The return value is either a statically |
3930 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3931 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3932 | const char * |
5014a89d BP |
3933 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3934 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3935 | { |
7c1a76a4 BP |
3936 | switch (reason) { |
3937 | case OFPR_NO_MATCH: | |
3938 | return "no_match"; | |
3939 | case OFPR_ACTION: | |
3940 | return "action"; | |
3941 | case OFPR_INVALID_TTL: | |
3942 | return "invalid_ttl"; | |
424467c6 SS |
3943 | case OFPR_ACTION_SET: |
3944 | return "action_set"; | |
3945 | case OFPR_GROUP: | |
3946 | return "group"; | |
3947 | case OFPR_PACKET_OUT: | |
3948 | return "packet_out"; | |
9bfe9334 BP |
3949 | case OFPR_EXPLICIT_MISS: |
3950 | case OFPR_IMPLICIT_MISS: | |
3951 | return ""; | |
7c1a76a4 BP |
3952 | |
3953 | case OFPR_N_REASONS: | |
3954 | default: | |
5014a89d BP |
3955 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3956 | return reasonbuf; | |
7c1a76a4 BP |
3957 | } |
3958 | } | |
3959 | ||
3960 | bool | |
3961 | ofputil_packet_in_reason_from_string(const char *s, | |
3962 | enum ofp_packet_in_reason *reason) | |
3963 | { | |
3964 | int i; | |
3965 | ||
3966 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3967 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3968 | const char *reason_s; | |
3969 | ||
3970 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3971 | sizeof reasonbuf); | |
3972 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3973 | *reason = i; |
3974 | return true; | |
3975 | } | |
3976 | } | |
3977 | return false; | |
3978 | } | |
3979 | ||
77ab5fd2 BP |
3980 | /* Returns a newly allocated NXT_RESUME message for 'pin', with the given |
3981 | * 'continuation', for 'protocol'. This message is suitable for resuming the | |
3982 | * pipeline traveral of the packet represented by 'pin', if sent to the switch | |
3983 | * from which 'pin' was received. */ | |
3984 | struct ofpbuf * | |
3985 | ofputil_encode_resume(const struct ofputil_packet_in *pin, | |
3986 | const struct ofpbuf *continuation, | |
3987 | enum ofputil_protocol protocol) | |
3988 | { | |
3989 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
3990 | size_t extra = pin->packet_len + NXM_TYPICAL_LEN + continuation->size; | |
3991 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_RESUME, version, | |
3992 | 0, extra); | |
c184807c | 3993 | ofputil_put_packet_in(pin, version, pin->packet_len, msg); |
77ab5fd2 BP |
3994 | ofpprop_put_nested(msg, NXPINT_CONTINUATION, continuation); |
3995 | ofpmsg_update_length(msg); | |
3996 | return msg; | |
3997 | } | |
3998 | ||
3999 | static enum ofperr | |
4000 | parse_subvalue_prop(const struct ofpbuf *property, union mf_subvalue *sv) | |
4001 | { | |
4002 | unsigned int len = ofpbuf_msgsize(property); | |
4003 | if (len > sizeof *sv) { | |
4004 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXCPT_STACK property has bad length %u", | |
4005 | len); | |
4006 | return OFPERR_OFPBPC_BAD_LEN; | |
4007 | } | |
4008 | memset(sv, 0, sizeof *sv); | |
4009 | memcpy(&sv->u8[sizeof *sv - len], property->msg, len); | |
4010 | return 0; | |
4011 | } | |
4012 | ||
4013 | static enum ofperr | |
4014 | parse_actions_property(struct ofpbuf *property, enum ofp_version version, | |
4015 | struct ofpbuf *ofpacts) | |
4016 | { | |
4017 | if (!ofpbuf_try_pull(property, ROUND_UP(ofpbuf_headersize(property), 8))) { | |
4018 | VLOG_WARN_RL(&bad_ofmsg_rl, "actions property has bad length %"PRIu32, | |
4019 | property->size); | |
4020 | return OFPERR_OFPBPC_BAD_LEN; | |
4021 | } | |
4022 | ||
4023 | return ofpacts_pull_openflow_actions(property, property->size, | |
4024 | version, ofpacts); | |
4025 | } | |
4026 | ||
4027 | /* This is like ofputil_decode_packet_in(), except that it decodes the | |
4028 | * continuation data into 'pin'. The format of this data is supposed to be | |
4029 | * opaque to any process other than ovs-vswitchd, so this function should not | |
4030 | * be used outside ovs-vswitchd. | |
4031 | * | |
4032 | * When successful, 'pin' contains some dynamically allocated data. Call | |
4033 | * ofputil_packet_in_private_destroy() to free this data. */ | |
4034 | enum ofperr | |
4035 | ofputil_decode_packet_in_private(const struct ofp_header *oh, bool loose, | |
8d8ab6c2 | 4036 | const struct tun_table *tun_table, |
77ab5fd2 BP |
4037 | struct ofputil_packet_in_private *pin, |
4038 | size_t *total_len, uint32_t *buffer_id) | |
4039 | { | |
4040 | memset(pin, 0, sizeof *pin); | |
4041 | ||
4042 | struct ofpbuf continuation; | |
4043 | enum ofperr error; | |
8d8ab6c2 JG |
4044 | error = ofputil_decode_packet_in(oh, loose, tun_table, &pin->public, |
4045 | total_len, buffer_id, &continuation); | |
77ab5fd2 BP |
4046 | if (error) { |
4047 | return error; | |
4048 | } | |
4049 | ||
4050 | struct ofpbuf actions, action_set; | |
4051 | ofpbuf_init(&actions, 0); | |
4052 | ofpbuf_init(&action_set, 0); | |
4053 | ||
4054 | uint8_t table_id = 0; | |
4055 | ovs_be64 cookie = 0; | |
4056 | ||
4057 | size_t allocated_stack = 0; | |
4058 | ||
4059 | while (continuation.size > 0) { | |
4060 | struct ofpbuf payload; | |
4061 | uint64_t type; | |
4062 | ||
4063 | error = ofpprop_pull(&continuation, &payload, &type); | |
4064 | ovs_assert(!error); | |
4065 | ||
4066 | switch (type) { | |
4067 | case NXCPT_BRIDGE: | |
4068 | error = ofpprop_parse_uuid(&payload, &pin->bridge); | |
4069 | break; | |
4070 | ||
4071 | case NXCPT_STACK: | |
4072 | if (pin->n_stack >= allocated_stack) { | |
4073 | pin->stack = x2nrealloc(pin->stack, &allocated_stack, | |
4074 | sizeof *pin->stack); | |
4075 | } | |
4076 | error = parse_subvalue_prop(&payload, | |
4077 | &pin->stack[pin->n_stack++]); | |
4078 | break; | |
4079 | ||
4080 | case NXCPT_MIRRORS: | |
4081 | error = ofpprop_parse_u32(&payload, &pin->mirrors); | |
4082 | break; | |
4083 | ||
4084 | case NXCPT_CONNTRACKED: | |
4085 | pin->conntracked = true; | |
4086 | break; | |
4087 | ||
4088 | case NXCPT_TABLE_ID: | |
4089 | error = ofpprop_parse_u8(&payload, &table_id); | |
4090 | break; | |
4091 | ||
4092 | case NXCPT_COOKIE: | |
4093 | error = ofpprop_parse_be64(&payload, &cookie); | |
4094 | break; | |
4095 | ||
4096 | case NXCPT_ACTIONS: { | |
4097 | struct ofpact_unroll_xlate *unroll | |
4098 | = ofpact_put_UNROLL_XLATE(&actions); | |
4099 | unroll->rule_table_id = table_id; | |
4100 | unroll->rule_cookie = cookie; | |
4101 | error = parse_actions_property(&payload, oh->version, &actions); | |
4102 | break; | |
4103 | } | |
4104 | ||
4105 | case NXCPT_ACTION_SET: | |
4106 | error = parse_actions_property(&payload, oh->version, &action_set); | |
4107 | break; | |
4108 | ||
4109 | default: | |
4110 | error = OFPPROP_UNKNOWN(loose, "continuation", type); | |
4111 | break; | |
4112 | } | |
4113 | if (error) { | |
4114 | break; | |
4115 | } | |
4116 | } | |
4117 | ||
4118 | pin->actions_len = actions.size; | |
4119 | pin->actions = ofpbuf_steal_data(&actions); | |
4120 | pin->action_set_len = action_set.size; | |
4121 | pin->action_set = ofpbuf_steal_data(&action_set); | |
4122 | ||
4123 | if (error) { | |
4124 | ofputil_packet_in_private_destroy(pin); | |
4125 | } | |
4126 | ||
4127 | return 0; | |
4128 | } | |
4129 | ||
4130 | /* Frees data in 'pin' that is dynamically allocated by | |
4131 | * ofputil_decode_packet_in_private(). | |
4132 | * | |
4133 | * 'pin->public' contains some pointer members that | |
4134 | * ofputil_decode_packet_in_private() doesn't initialize to newly allocated | |
4135 | * data, so this function doesn't free those. */ | |
4136 | void | |
4137 | ofputil_packet_in_private_destroy(struct ofputil_packet_in_private *pin) | |
4138 | { | |
4139 | if (pin) { | |
4140 | free(pin->stack); | |
4141 | free(pin->actions); | |
4142 | free(pin->action_set); | |
4143 | } | |
4144 | } | |
4145 | ||
f25d0cf3 BP |
4146 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
4147 | * 'po'. | |
4148 | * | |
4149 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
4150 | * message's actions. The caller must initialize 'ofpacts' and retains | |
4151 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
4152 | * | |
6dd3c787 JR |
4153 | * 'po->packet' refers to the packet data in 'oh', so the buffer containing |
4154 | * 'oh' must not be destroyed while 'po' is being used. | |
4155 | * | |
f25d0cf3 | 4156 | * Returns 0 if successful, otherwise an OFPERR_* value. */ |
c6a93eb7 BP |
4157 | enum ofperr |
4158 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 4159 | const struct ofp_header *oh, |
f25d0cf3 | 4160 | struct ofpbuf *ofpacts) |
c6a93eb7 | 4161 | { |
0a2869d5 BP |
4162 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4163 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4164 | |
9abca1e5 | 4165 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
4166 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
4167 | enum ofperr error; | |
4168 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
4169 | ||
4170 | po->buffer_id = ntohl(opo->buffer_id); | |
4171 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
4172 | if (error) { | |
4173 | return error; | |
4174 | } | |
4175 | ||
e3f8f887 JR |
4176 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4177 | oh->version, ofpacts); | |
eb5ee596 SH |
4178 | if (error) { |
4179 | return error; | |
4180 | } | |
eb5ee596 | 4181 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 4182 | enum ofperr error; |
31a9e63f | 4183 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
4184 | |
4185 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 4186 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 4187 | |
e3f8f887 JR |
4188 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4189 | oh->version, ofpacts); | |
8a6bc7cd SH |
4190 | if (error) { |
4191 | return error; | |
4192 | } | |
4193 | } else { | |
428b2edd | 4194 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
4195 | } |
4196 | ||
4e022ec0 AW |
4197 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
4198 | && po->in_port != OFPP_LOCAL | |
751c7785 | 4199 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
4200 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
4201 | po->in_port); | |
2e1bfcb6 | 4202 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
4203 | } |
4204 | ||
6fd6ed71 PS |
4205 | po->ofpacts = ofpacts->data; |
4206 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
4207 | |
4208 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
4209 | po->packet = b.data; |
4210 | po->packet_len = b.size; | |
c6a93eb7 BP |
4211 | } else { |
4212 | po->packet = NULL; | |
4213 | po->packet_len = 0; | |
4214 | } | |
4215 | ||
4216 | return 0; | |
4217 | } | |
6c038611 BP |
4218 | \f |
4219 | /* ofputil_phy_port */ | |
4220 | ||
4221 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
4222 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
4223 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4224 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4225 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4226 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4227 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4228 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4229 | ||
4230 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
4231 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
4232 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
4233 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
4234 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
4235 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 4236 | |
9e1fd49b BP |
4237 | static enum netdev_features |
4238 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
4239 | { |
4240 | uint32_t ofp10 = ntohl(ofp10_); | |
4241 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
4242 | } | |
4243 | ||
9e1fd49b BP |
4244 | static ovs_be32 |
4245 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
4246 | { |
4247 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
4248 | } | |
c6a93eb7 | 4249 | |
9e1fd49b BP |
4250 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
4251 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4252 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4253 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4254 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4255 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4256 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4257 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
4258 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
4259 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
4260 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
4261 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
4262 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
4263 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
4264 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
4265 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
4266 | ||
4267 | static enum netdev_features | |
4268 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
4269 | { | |
4270 | return ntohl(ofp11) & 0xffff; | |
4271 | } | |
4272 | ||
4273 | static ovs_be32 | |
4274 | netdev_port_features_to_ofp11(enum netdev_features features) | |
4275 | { | |
4276 | return htonl(features & 0xffff); | |
4277 | } | |
4278 | ||
4279 | static enum ofperr | |
4280 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
4281 | const struct ofp10_phy_port *opp) | |
4282 | { | |
4e022ec0 | 4283 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 4284 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
4285 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
4286 | ||
4287 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
4288 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
4289 | ||
4290 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
4291 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
4292 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
4293 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
4294 | ||
d02a5f8e BP |
4295 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
4296 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
4297 | |
4298 | return 0; | |
4299 | } | |
4300 | ||
4301 | static enum ofperr | |
4302 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
4303 | const struct ofp11_port *op) | |
4304 | { | |
4305 | enum ofperr error; | |
4306 | ||
9e1fd49b BP |
4307 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
4308 | if (error) { | |
4309 | return error; | |
4310 | } | |
74ff3298 | 4311 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
4312 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4313 | ||
4314 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 4315 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
4316 | |
4317 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
4318 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
4319 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
4320 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
4321 | ||
4322 | pp->curr_speed = ntohl(op->curr_speed); | |
4323 | pp->max_speed = ntohl(op->max_speed); | |
4324 | ||
4325 | return 0; | |
4326 | } | |
4327 | ||
8c3cc785 BP |
4328 | static enum ofperr |
4329 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
4330 | struct ofputil_phy_port *pp) | |
4331 | { | |
6fd6ed71 | 4332 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 4333 | |
6fd6ed71 | 4334 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
4335 | return OFPERR_OFPBPC_BAD_LEN; |
4336 | } | |
4337 | ||
4338 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
4339 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
4340 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
4341 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
4342 | ||
4343 | pp->curr_speed = ntohl(eth->curr_speed); | |
4344 | pp->max_speed = ntohl(eth->max_speed); | |
4345 | ||
4346 | return 0; | |
4347 | } | |
4348 | ||
4349 | static enum ofperr | |
4350 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4351 | { | |
0a2869d5 | 4352 | struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op); |
8c3cc785 BP |
4353 | if (!op) { |
4354 | return OFPERR_OFPBRC_BAD_LEN; | |
4355 | } | |
4356 | ||
0a2869d5 | 4357 | size_t len = ntohs(op->length); |
6fd6ed71 | 4358 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
4359 | return OFPERR_OFPBRC_BAD_LEN; |
4360 | } | |
4361 | len -= sizeof *op; | |
8c3cc785 | 4362 | |
0a2869d5 | 4363 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
8c3cc785 BP |
4364 | if (error) { |
4365 | return error; | |
4366 | } | |
74ff3298 | 4367 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
4368 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4369 | ||
4370 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4371 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4372 | ||
0a2869d5 BP |
4373 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
4374 | len); | |
6fd6ed71 | 4375 | while (properties.size > 0) { |
8c3cc785 BP |
4376 | struct ofpbuf payload; |
4377 | enum ofperr error; | |
34a543e3 | 4378 | uint64_t type; |
8c3cc785 | 4379 | |
c5562271 | 4380 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
4381 | if (error) { |
4382 | return error; | |
4383 | } | |
4384 | ||
4385 | switch (type) { | |
4386 | case OFPPDPT14_ETHERNET: | |
4387 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
4388 | break; | |
4389 | ||
4390 | default: | |
34a543e3 | 4391 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
4392 | break; |
4393 | } | |
4394 | ||
4395 | if (error) { | |
4396 | return error; | |
4397 | } | |
4398 | } | |
4399 | ||
4400 | return 0; | |
4401 | } | |
4402 | ||
9e1fd49b BP |
4403 | static void |
4404 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
4405 | struct ofp10_phy_port *opp) | |
4406 | { | |
4407 | memset(opp, 0, sizeof *opp); | |
4408 | ||
4e022ec0 | 4409 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 4410 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4411 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4412 | ||
4413 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
4414 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
4415 | ||
4416 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
4417 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
4418 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
4419 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
4420 | } | |
4421 | ||
4422 | static void | |
4423 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
4424 | struct ofp11_port *op) | |
4425 | { | |
4426 | memset(op, 0, sizeof *op); | |
4427 | ||
4428 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 4429 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4430 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4431 | ||
4432 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4433 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4434 | ||
4435 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
4436 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4437 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
4438 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
4439 | ||
4440 | op->curr_speed = htonl(pp->curr_speed); | |
4441 | op->max_speed = htonl(pp->max_speed); | |
4442 | } | |
4443 | ||
8c3cc785 BP |
4444 | static void |
4445 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
4446 | struct ofpbuf *b) | |
4447 | { | |
4448 | struct ofp14_port *op; | |
4449 | struct ofp14_port_desc_prop_ethernet *eth; | |
4450 | ||
4451 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4452 | ||
4453 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4454 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4455 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 4456 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
4457 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
4458 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4459 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4460 | ||
303721ee | 4461 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
8c3cc785 BP |
4462 | eth->curr = netdev_port_features_to_ofp11(pp->curr); |
4463 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4464 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
4465 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
4466 | eth->curr_speed = htonl(pp->curr_speed); | |
4467 | eth->max_speed = htonl(pp->max_speed); | |
4468 | } | |
4469 | ||
9e1fd49b | 4470 | static void |
2e3fa633 SH |
4471 | ofputil_put_phy_port(enum ofp_version ofp_version, |
4472 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 4473 | { |
2e3fa633 SH |
4474 | switch (ofp_version) { |
4475 | case OFP10_VERSION: { | |
6b0f20ac BP |
4476 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4477 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4478 | break; |
4479 | } | |
4480 | ||
4481 | case OFP11_VERSION: | |
2e1ae200 JR |
4482 | case OFP12_VERSION: |
4483 | case OFP13_VERSION: { | |
6b0f20ac BP |
4484 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4485 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4486 | break; |
4487 | } | |
4488 | ||
c37c0382 | 4489 | case OFP14_VERSION: |
42dccab5 | 4490 | case OFP15_VERSION: |
b79d45a1 | 4491 | case OFP16_VERSION: |
8c3cc785 | 4492 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4493 | break; |
4494 | ||
2e3fa633 | 4495 | default: |
428b2edd | 4496 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4497 | } |
4498 | } | |
2be393ed | 4499 | |
70ae4f93 BP |
4500 | enum ofperr |
4501 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4502 | ofp_port_t *port) | |
4503 | { | |
0a2869d5 BP |
4504 | struct ofpbuf b = ofpbuf_const_initializer(request, |
4505 | ntohs(request->length)); | |
4506 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
70ae4f93 BP |
4507 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { |
4508 | *port = OFPP_ANY; | |
4509 | return 0; | |
4510 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4511 | ovs_be32 *ofp11_port; | |
4512 | ||
4513 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4514 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4515 | } else { | |
4516 | OVS_NOT_REACHED(); | |
4517 | } | |
4518 | } | |
4519 | ||
4520 | struct ofpbuf * | |
4521 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4522 | ofp_port_t port) | |
4523 | { | |
4524 | struct ofpbuf *request; | |
70ae4f93 BP |
4525 | |
4526 | switch (ofp_version) { | |
4527 | case OFP10_VERSION: | |
4528 | case OFP11_VERSION: | |
4529 | case OFP12_VERSION: | |
4530 | case OFP13_VERSION: | |
4531 | case OFP14_VERSION: | |
4532 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4533 | ofp_version, 0); | |
4534 | break; | |
b79d45a1 BP |
4535 | case OFP15_VERSION: |
4536 | case OFP16_VERSION:{ | |
7448d548 | 4537 | struct ofp15_port_desc_request *req; |
70ae4f93 BP |
4538 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4539 | ofp_version, 0); | |
7448d548 MT |
4540 | req = ofpbuf_put_zeros(request, sizeof *req); |
4541 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4542 | break; |
7448d548 | 4543 | } |
70ae4f93 BP |
4544 | default: |
4545 | OVS_NOT_REACHED(); | |
4546 | } | |
4547 | ||
4548 | return request; | |
4549 | } | |
4550 | ||
2be393ed | 4551 | void |
e28ac5cf | 4552 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4553 | struct ovs_list *replies) |
2be393ed | 4554 | { |
417e7e66 | 4555 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 4556 | size_t start_ofs = reply->size; |
c37c0382 | 4557 | |
6b0f20ac BP |
4558 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4559 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4560 | } |
9e1fd49b | 4561 | \f |
ad99e2ed BP |
4562 | /* ofputil_switch_config */ |
4563 | ||
4564 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4565 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4566 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4567 | static bool | |
4568 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4569 | struct ofputil_switch_config *config) | |
4570 | { | |
0a2869d5 | 4571 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
ad99e2ed | 4572 | ofpraw_pull_assert(&b); |
ad99e2ed | 4573 | |
0a2869d5 | 4574 | const struct ofp_switch_config *osc = ofpbuf_pull(&b, sizeof *osc); |
ad99e2ed BP |
4575 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; |
4576 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4577 | ||
4578 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4579 | if (oh->version < OFP13_VERSION) { | |
4580 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4581 | valid_mask |= ttl_bit; | |
4582 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4583 | } else { | |
4584 | config->invalid_ttl_to_controller = -1; | |
4585 | } | |
4586 | ||
4587 | return !(osc->flags & ~valid_mask); | |
4588 | } | |
4589 | ||
4590 | void | |
4591 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4592 | struct ofputil_switch_config *config) | |
4593 | { | |
4594 | ofputil_decode_switch_config(oh, config); | |
4595 | } | |
4596 | ||
4597 | enum ofperr | |
4598 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4599 | struct ofputil_switch_config *config) | |
4600 | { | |
4601 | return (ofputil_decode_switch_config(oh, config) | |
4602 | ? 0 | |
4603 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4604 | } | |
4605 | ||
4606 | static struct ofpbuf * | |
4607 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4608 | struct ofpbuf *b) | |
4609 | { | |
4610 | const struct ofp_header *oh = b->data; | |
4611 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4612 | osc->flags = htons(config->frag); | |
4613 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4614 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4615 | } | |
4616 | osc->miss_send_len = htons(config->miss_send_len); | |
4617 | return b; | |
4618 | } | |
4619 | ||
4620 | struct ofpbuf * | |
4621 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4622 | const struct ofputil_switch_config *config) | |
4623 | { | |
4624 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4625 | request, 0); | |
4626 | return ofputil_put_switch_config(config, b); | |
4627 | } | |
4628 | ||
4629 | struct ofpbuf * | |
4630 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4631 | enum ofp_version version) | |
4632 | { | |
4633 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4634 | return ofputil_put_switch_config(config, b); | |
4635 | } | |
4636 | \f | |
9e1fd49b BP |
4637 | /* ofputil_switch_features */ |
4638 | ||
4639 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4640 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4641 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4642 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4643 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4644 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4645 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4646 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
50b73fe1 JR |
4647 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_BLOCKED == OFPC12_PORT_BLOCKED); |
4648 | BUILD_ASSERT_DECL((int) OFPUTIL_C_BUNDLES == OFPC14_BUNDLES); | |
4649 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_MONITORING == OFPC14_FLOW_MONITORING); | |
9e1fd49b | 4650 | |
60202987 SH |
4651 | static uint32_t |
4652 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4653 | { | |
0746a84f | 4654 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4655 | switch (ofp_version) { |
4656 | case OFP10_VERSION: | |
4657 | case OFP11_VERSION: | |
4658 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4659 | case OFP12_VERSION: | |
2e1ae200 | 4660 | case OFP13_VERSION: |
50b73fe1 | 4661 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
c37c0382 | 4662 | case OFP14_VERSION: |
42dccab5 | 4663 | case OFP15_VERSION: |
b79d45a1 | 4664 | case OFP16_VERSION: |
50b73fe1 JR |
4665 | return OFPC_COMMON | OFPC12_PORT_BLOCKED | OFPC14_BUNDLES |
4666 | | OFPC14_FLOW_MONITORING; | |
60202987 SH |
4667 | default: |
4668 | /* Caller needs to check osf->header.version itself */ | |
4669 | return 0; | |
4670 | } | |
4671 | } | |
4672 | ||
667bb1fb BP |
4673 | /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into |
4674 | * an abstract representation in '*features', readying 'b' to iterate over the | |
4675 | * OpenFlow port structures following 'osf' with later calls to | |
4676 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_* | |
4677 | * value. */ | |
9e1fd49b | 4678 | enum ofperr |
667bb1fb BP |
4679 | ofputil_pull_switch_features(struct ofpbuf *b, |
4680 | struct ofputil_switch_features *features) | |
9e1fd49b | 4681 | { |
667bb1fb BP |
4682 | const struct ofp_header *oh = b->data; |
4683 | enum ofpraw raw = ofpraw_pull_assert(b); | |
4684 | const struct ofp_switch_features *osf = ofpbuf_pull(b, sizeof *osf); | |
9e1fd49b BP |
4685 | features->datapath_id = ntohll(osf->datapath_id); |
4686 | features->n_buffers = ntohl(osf->n_buffers); | |
4687 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4688 | features->auxiliary_id = 0; |
9e1fd49b | 4689 | |
60202987 SH |
4690 | features->capabilities = ntohl(osf->capabilities) & |
4691 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4692 | |
982697a4 | 4693 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4694 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4695 | features->capabilities |= OFPUTIL_C_STP; | |
4696 | } | |
08d1e234 BP |
4697 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4698 | OFP10_VERSION); | |
2e1ae200 JR |
4699 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4700 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4701 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4702 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4703 | } | |
08d1e234 | 4704 | features->ofpacts = 0; |
2e1ae200 JR |
4705 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4706 | features->auxiliary_id = osf->auxiliary_id; | |
4707 | } | |
9e1fd49b BP |
4708 | } else { |
4709 | return OFPERR_OFPBRC_BAD_VERSION; | |
4710 | } | |
4711 | ||
4712 | return 0; | |
4713 | } | |
4714 | ||
fca6d553 BP |
4715 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4716 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4717 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4718 | * | |
4719 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4720 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4721 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4722 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4723 | * message. | |
4724 | * | |
4725 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4726 | * stats request to get the ports. */ | |
347b7ac4 | 4727 | bool |
fca6d553 | 4728 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4729 | { |
6fd6ed71 | 4730 | struct ofp_header *oh = b->data; |
13e1aff8 | 4731 | size_t phy_port_size; |
347b7ac4 | 4732 | |
fca6d553 | 4733 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4734 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4735 | return false; |
13e1aff8 BP |
4736 | } |
4737 | ||
4738 | phy_port_size = (oh->version == OFP10_VERSION | |
4739 | ? sizeof(struct ofp10_phy_port) | |
4740 | : sizeof(struct ofp11_port)); | |
4741 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4742 | /* There's room for additional ports in the feature reply. | |
4743 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4744 | return true; |
4745 | } | |
13e1aff8 BP |
4746 | |
4747 | /* The feature reply has no room for more ports. Probably the list is | |
4748 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4749 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4750 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4751 | ofpmsg_update_length(b); |
4752 | return false; | |
347b7ac4 JP |
4753 | } |
4754 | ||
9e1fd49b BP |
4755 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4756 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4757 | * information to the buffer with subsequent calls to | |
4758 | * ofputil_put_switch_features_port(). */ | |
4759 | struct ofpbuf * | |
4760 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4761 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4762 | { | |
4763 | struct ofp_switch_features *osf; | |
4764 | struct ofpbuf *b; | |
2e3fa633 SH |
4765 | enum ofp_version version; |
4766 | enum ofpraw raw; | |
982697a4 BP |
4767 | |
4768 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4769 | switch (version) { |
4770 | case OFP10_VERSION: | |
4771 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4772 | break; | |
4773 | case OFP11_VERSION: | |
4774 | case OFP12_VERSION: | |
4775 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4776 | break; | |
2e1ae200 | 4777 | case OFP13_VERSION: |
c37c0382 | 4778 | case OFP14_VERSION: |
42dccab5 | 4779 | case OFP15_VERSION: |
b79d45a1 | 4780 | case OFP16_VERSION: |
2e1ae200 JR |
4781 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4782 | break; | |
2e3fa633 | 4783 | default: |
428b2edd | 4784 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4785 | } |
4786 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4787 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4788 | osf->datapath_id = htonll(features->datapath_id); |
4789 | osf->n_buffers = htonl(features->n_buffers); | |
4790 | osf->n_tables = features->n_tables; | |
4791 | ||
60202987 SH |
4792 | osf->capabilities = htonl(features->capabilities & |
4793 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4794 | switch (version) { |
4795 | case OFP10_VERSION: | |
9e1fd49b BP |
4796 | if (features->capabilities & OFPUTIL_C_STP) { |
4797 | osf->capabilities |= htonl(OFPC10_STP); | |
4798 | } | |
08d1e234 BP |
4799 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4800 | OFP10_VERSION); | |
2e3fa633 | 4801 | break; |
2e1ae200 | 4802 | case OFP13_VERSION: |
c37c0382 | 4803 | case OFP14_VERSION: |
42dccab5 | 4804 | case OFP15_VERSION: |
b79d45a1 | 4805 | case OFP16_VERSION: |
2e1ae200 JR |
4806 | osf->auxiliary_id = features->auxiliary_id; |
4807 | /* fall through */ | |
2e3fa633 SH |
4808 | case OFP11_VERSION: |
4809 | case OFP12_VERSION: | |
9e1fd49b BP |
4810 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4811 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4812 | } | |
2e3fa633 SH |
4813 | break; |
4814 | default: | |
428b2edd | 4815 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4816 | } |
4817 | ||
4818 | return b; | |
4819 | } | |
4820 | ||
4821 | /* Encodes 'pp' into the format required by the switch_features message already | |
4822 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4823 | * and appends the encoded version to 'b'. */ | |
4824 | void | |
4825 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4826 | struct ofpbuf *b) | |
4827 | { | |
6fd6ed71 | 4828 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4829 | |
e0c91c0c | 4830 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4831 | /* Try adding a port description to the message, but drop it again if |
4832 | * the buffer overflows. (This possibility for overflow is why | |
4833 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4834 | size_t start_ofs = b->size; |
e0c91c0c | 4835 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4836 | if (b->size > UINT16_MAX) { |
4837 | b->size = start_ofs; | |
6b0f20ac | 4838 | } |
e0c91c0c | 4839 | } |
9e1fd49b BP |
4840 | } |
4841 | \f | |
4842 | /* ofputil_port_status */ | |
4843 | ||
4844 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4845 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4846 | enum ofperr | |
982697a4 | 4847 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4848 | struct ofputil_port_status *ps) |
4849 | { | |
0a2869d5 | 4850 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
982697a4 | 4851 | ofpraw_pull_assert(&b); |
982697a4 | 4852 | |
0a2869d5 | 4853 | const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops); |
9e1fd49b BP |
4854 | if (ops->reason != OFPPR_ADD && |
4855 | ops->reason != OFPPR_DELETE && | |
4856 | ops->reason != OFPPR_MODIFY) { | |
4857 | return OFPERR_NXBRC_BAD_REASON; | |
4858 | } | |
4859 | ps->reason = ops->reason; | |
4860 | ||
0a2869d5 | 4861 | int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4862 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4863 | return retval; |
4864 | } | |
4865 | ||
4866 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4867 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4868 | * a buffer owned by the caller. */ | |
4869 | struct ofpbuf * | |
4870 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4871 | enum ofputil_protocol protocol) | |
4872 | { | |
4873 | struct ofp_port_status *ops; | |
4874 | struct ofpbuf *b; | |
2e3fa633 SH |
4875 | enum ofp_version version; |
4876 | enum ofpraw raw; | |
982697a4 BP |
4877 | |
4878 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4879 | switch (version) { |
4880 | case OFP10_VERSION: | |
4881 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4882 | break; | |
4883 | ||
4884 | case OFP11_VERSION: | |
4885 | case OFP12_VERSION: | |
2e1ae200 | 4886 | case OFP13_VERSION: |
2e3fa633 SH |
4887 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4888 | break; | |
4889 | ||
8c3cc785 | 4890 | case OFP14_VERSION: |
42dccab5 | 4891 | case OFP15_VERSION: |
b79d45a1 | 4892 | case OFP16_VERSION: |
8c3cc785 BP |
4893 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4894 | break; | |
4895 | ||
2e3fa633 | 4896 | default: |
428b2edd | 4897 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4898 | } |
4899 | ||
4900 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4901 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4902 | ops->reason = ps->reason; |
982697a4 BP |
4903 | ofputil_put_phy_port(version, &ps->desc, b); |
4904 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4905 | return b; |
4906 | } | |
918f2b82 | 4907 | |
9e1fd49b BP |
4908 | /* ofputil_port_mod */ |
4909 | ||
18cc69d9 BP |
4910 | static enum ofperr |
4911 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4912 | struct ofputil_port_mod *pm) | |
4913 | { | |
b611d3ac BP |
4914 | ovs_be32 advertise; |
4915 | enum ofperr error; | |
18cc69d9 | 4916 | |
b611d3ac BP |
4917 | error = ofpprop_parse_be32(property, &advertise); |
4918 | if (!error) { | |
4919 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 4920 | } |
b611d3ac | 4921 | return error; |
18cc69d9 BP |
4922 | } |
4923 | ||
9e1fd49b BP |
4924 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4925 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4926 | enum ofperr | |
4927 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4928 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4929 | { |
0a2869d5 BP |
4930 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4931 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4932 | if (raw == OFPRAW_OFPT10_PORT_MOD) { |
6fd6ed71 | 4933 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4934 | |
4e022ec0 | 4935 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4936 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4937 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4938 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4939 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4940 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4941 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4942 | enum ofperr error; |
4943 | ||
9e1fd49b BP |
4944 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4945 | if (error) { | |
4946 | return error; | |
4947 | } | |
4948 | ||
74ff3298 | 4949 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4950 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4951 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4952 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4953 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4954 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4955 | enum ofperr error; | |
4956 | ||
4957 | memset(pm, 0, sizeof *pm); | |
4958 | ||
4959 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4960 | if (error) { | |
4961 | return error; | |
4962 | } | |
4963 | ||
74ff3298 | 4964 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4965 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4966 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4967 | ||
6fd6ed71 | 4968 | while (b.size > 0) { |
18cc69d9 BP |
4969 | struct ofpbuf property; |
4970 | enum ofperr error; | |
34a543e3 | 4971 | uint64_t type; |
18cc69d9 | 4972 | |
c5562271 | 4973 | error = ofpprop_pull(&b, &property, &type); |
18cc69d9 BP |
4974 | if (error) { |
4975 | return error; | |
4976 | } | |
4977 | ||
4978 | switch (type) { | |
4979 | case OFPPMPT14_ETHERNET: | |
4980 | error = parse_port_mod_ethernet_property(&property, pm); | |
4981 | break; | |
4982 | ||
4983 | default: | |
34a543e3 | 4984 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); |
18cc69d9 BP |
4985 | break; |
4986 | } | |
4987 | ||
4988 | if (error) { | |
4989 | return error; | |
4990 | } | |
4991 | } | |
9e1fd49b | 4992 | } else { |
982697a4 | 4993 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4994 | } |
4995 | ||
4996 | pm->config &= pm->mask; | |
4997 | return 0; | |
4998 | } | |
4999 | ||
5000 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
5001 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
5002 | * owned by the caller. */ | |
5003 | struct ofpbuf * | |
5004 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
5005 | enum ofputil_protocol protocol) | |
5006 | { | |
2e3fa633 | 5007 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
5008 | struct ofpbuf *b; |
5009 | ||
2e3fa633 SH |
5010 | switch (ofp_version) { |
5011 | case OFP10_VERSION: { | |
9e1fd49b BP |
5012 | struct ofp10_port_mod *opm; |
5013 | ||
982697a4 BP |
5014 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
5015 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 5016 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 5017 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5018 | opm->config = htonl(pm->config & OFPPC10_ALL); |
5019 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
5020 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
5021 | break; |
5022 | } | |
5023 | ||
5fe7c919 | 5024 | case OFP11_VERSION: |
2e1ae200 JR |
5025 | case OFP12_VERSION: |
5026 | case OFP13_VERSION: { | |
9e1fd49b BP |
5027 | struct ofp11_port_mod *opm; |
5028 | ||
982697a4 BP |
5029 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
5030 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 5031 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 5032 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5033 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5034 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5035 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
5036 | break; |
5037 | } | |
42dccab5 | 5038 | case OFP14_VERSION: |
b79d45a1 BP |
5039 | case OFP15_VERSION: |
5040 | case OFP16_VERSION: { | |
18cc69d9 BP |
5041 | struct ofp14_port_mod *opm; |
5042 | ||
b611d3ac | 5043 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
5044 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
5045 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 5046 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
5047 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5048 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5049 | ||
5050 | if (pm->advertise) { | |
b611d3ac BP |
5051 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
5052 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 5053 | } |
c37c0382 | 5054 | break; |
18cc69d9 | 5055 | } |
918f2b82 | 5056 | default: |
428b2edd | 5057 | OVS_NOT_REACHED(); |
918f2b82 AZ |
5058 | } |
5059 | ||
5060 | return b; | |
5061 | } | |
72b25867 BP |
5062 | \f |
5063 | /* Table features. */ | |
918f2b82 | 5064 | |
5deff5aa | 5065 | static enum ofperr |
9a4eddbb | 5066 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 5067 | uint64_t *typep) |
5deff5aa | 5068 | { |
9a4eddbb | 5069 | enum ofperr error; |
5deff5aa | 5070 | |
c5562271 | 5071 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 5072 | if (payload && !error) { |
b611d3ac | 5073 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 5074 | } |
9a4eddbb | 5075 | return error; |
5deff5aa AW |
5076 | } |
5077 | ||
5078 | static enum ofperr | |
08d1e234 BP |
5079 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
5080 | uint64_t *ofpacts) | |
5deff5aa | 5081 | { |
08d1e234 | 5082 | uint32_t types = 0; |
5deff5aa | 5083 | |
6fd6ed71 | 5084 | while (payload->size > 0) { |
08d1e234 | 5085 | enum ofperr error; |
34a543e3 | 5086 | uint64_t type; |
08d1e234 | 5087 | |
34a543e3 | 5088 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
5089 | if (error) { |
5090 | return error; | |
5091 | } | |
08d1e234 BP |
5092 | if (type < CHAR_BIT * sizeof types) { |
5093 | types |= 1u << type; | |
5deff5aa AW |
5094 | } |
5095 | } | |
08d1e234 BP |
5096 | |
5097 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
5098 | return 0; |
5099 | } | |
5100 | ||
5101 | static enum ofperr | |
5102 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
5103 | { | |
5104 | *insts = 0; | |
6fd6ed71 | 5105 | while (payload->size > 0) { |
5deff5aa AW |
5106 | enum ovs_instruction_type inst; |
5107 | enum ofperr error; | |
34a543e3 | 5108 | uint64_t ofpit; |
5deff5aa | 5109 | |
72b25867 BP |
5110 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
5111 | * It seems clear that they aren't padded to 8 bytes, though, because | |
5112 | * both standards say that "non-experimenter instructions are 4 bytes" | |
5113 | * and do not mention any padding before the first instruction ID. | |
5114 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
5115 | * aligned on an odd 4-byte boundary.) | |
5116 | * | |
5117 | * Anyway, we just assume they're all glommed together on byte | |
5118 | * boundaries. */ | |
34a543e3 | 5119 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
5120 | if (error) { |
5121 | return error; | |
5122 | } | |
5123 | ||
5124 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
5125 | if (!error) { | |
5126 | *insts |= 1u << inst; | |
5127 | } else if (!loose) { | |
5128 | return error; | |
5129 | } | |
5130 | } | |
5131 | return 0; | |
5132 | } | |
5133 | ||
5134 | static enum ofperr | |
5135 | parse_table_features_next_table(struct ofpbuf *payload, | |
5136 | unsigned long int *next_tables) | |
5137 | { | |
5138 | size_t i; | |
5139 | ||
5140 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
5141 | for (i = 0; i < payload->size; i++) { |
5142 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 5143 | if (id >= 255) { |
9a4eddbb | 5144 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
5145 | } |
5146 | bitmap_set1(next_tables, id); | |
5147 | } | |
5148 | return 0; | |
5149 | } | |
5150 | ||
5deff5aa AW |
5151 | static enum ofperr |
5152 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 5153 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 5154 | { |
abadfcb0 BP |
5155 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
5156 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 5157 | |
6fd6ed71 | 5158 | while (payload->size > 0) { |
5deff5aa AW |
5159 | const struct mf_field *field; |
5160 | enum ofperr error; | |
5161 | bool hasmask; | |
5162 | ||
178742f9 | 5163 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 5164 | if (!error) { |
abadfcb0 | 5165 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
5166 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
5167 | return error; | |
5168 | } | |
5169 | } | |
5170 | if (exactp) { | |
5171 | *exactp = exact; | |
abadfcb0 | 5172 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
5173 | return OFPERR_OFPBMC_BAD_MASK; |
5174 | } | |
5175 | if (maskedp) { | |
5176 | *maskedp = masked; | |
abadfcb0 | 5177 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
5178 | return OFPERR_OFPBMC_BAD_MASK; |
5179 | } | |
5180 | return 0; | |
5181 | } | |
5182 | ||
5183 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
5184 | * ofputil_table_features in 'tf'. | |
5185 | * | |
5186 | * If 'loose' is true, this function ignores properties and values that it does | |
5187 | * not understand, as a controller would want to do when interpreting | |
5188 | * capabilities provided by a switch. If 'loose' is false, this function | |
5189 | * treats unknown properties and values as an error, as a switch would want to | |
5190 | * do when interpreting a configuration request made by a controller. | |
5191 | * | |
5192 | * A single OpenFlow message can specify features for multiple tables. Calling | |
5193 | * this function multiple times for a single 'msg' iterates through the tables | |
5194 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
5195 | * and not modify them between calls. | |
5196 | * | |
5197 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
5198 | * a positive "enum ofperr" value. */ | |
5199 | int | |
5200 | ofputil_decode_table_features(struct ofpbuf *msg, | |
5201 | struct ofputil_table_features *tf, bool loose) | |
5202 | { | |
3c1bb396 BP |
5203 | memset(tf, 0, sizeof *tf); |
5204 | ||
6fd6ed71 | 5205 | if (!msg->header) { |
5deff5aa AW |
5206 | ofpraw_pull_assert(msg); |
5207 | } | |
5208 | ||
6fd6ed71 | 5209 | if (!msg->size) { |
5deff5aa AW |
5210 | return EOF; |
5211 | } | |
5212 | ||
0a2869d5 BP |
5213 | const struct ofp_header *oh = msg->header; |
5214 | struct ofp13_table_features *otf = msg->data; | |
6fd6ed71 | 5215 | if (msg->size < sizeof *otf) { |
9a4eddbb | 5216 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
5217 | } |
5218 | ||
0a2869d5 | 5219 | unsigned int len = ntohs(otf->length); |
6fd6ed71 | 5220 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 5221 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 5222 | } |
5deff5aa AW |
5223 | |
5224 | tf->table_id = otf->table_id; | |
5225 | if (tf->table_id == OFPTT_ALL) { | |
5226 | return OFPERR_OFPTFFC_BAD_TABLE; | |
5227 | } | |
5228 | ||
5229 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
5230 | tf->metadata_match = otf->metadata_match; | |
5231 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
5232 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
5233 | if (oh->version >= OFP14_VERSION) { | |
5234 | uint32_t caps = ntohl(otf->capabilities); | |
5235 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
5236 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
5237 | } else { | |
5238 | tf->supports_eviction = -1; | |
5239 | tf->supports_vacancy_events = -1; | |
5240 | } | |
5deff5aa AW |
5241 | tf->max_entries = ntohl(otf->max_entries); |
5242 | ||
0a2869d5 BP |
5243 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
5244 | len); | |
5245 | ofpbuf_pull(&properties, sizeof *otf); | |
6fd6ed71 | 5246 | while (properties.size > 0) { |
5deff5aa AW |
5247 | struct ofpbuf payload; |
5248 | enum ofperr error; | |
34a543e3 | 5249 | uint64_t type; |
5deff5aa | 5250 | |
ae665de5 | 5251 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
5252 | if (error) { |
5253 | return error; | |
5254 | } | |
5255 | ||
5256 | switch ((enum ofp13_table_feature_prop_type) type) { | |
5257 | case OFPTFPT13_INSTRUCTIONS: | |
5258 | error = parse_instruction_ids(&payload, loose, | |
5259 | &tf->nonmiss.instructions); | |
5260 | break; | |
5261 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
5262 | error = parse_instruction_ids(&payload, loose, | |
5263 | &tf->miss.instructions); | |
5264 | break; | |
5265 | ||
5266 | case OFPTFPT13_NEXT_TABLES: | |
5267 | error = parse_table_features_next_table(&payload, | |
5268 | tf->nonmiss.next); | |
5269 | break; | |
5270 | case OFPTFPT13_NEXT_TABLES_MISS: | |
5271 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
5272 | break; | |
5273 | ||
5274 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
5275 | error = parse_action_bitmap(&payload, oh->version, |
5276 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
5277 | break; |
5278 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
5279 | error = parse_action_bitmap(&payload, oh->version, |
5280 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
5281 | break; |
5282 | ||
5283 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
5284 | error = parse_action_bitmap(&payload, oh->version, |
5285 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
5286 | break; |
5287 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
5288 | error = parse_action_bitmap(&payload, oh->version, |
5289 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
5290 | break; |
5291 | ||
5292 | case OFPTFPT13_MATCH: | |
5293 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
5294 | break; | |
5295 | case OFPTFPT13_WILDCARDS: | |
5296 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
5297 | break; | |
5298 | ||
5299 | case OFPTFPT13_WRITE_SETFIELD: | |
5300 | error = parse_oxms(&payload, loose, | |
5301 | &tf->nonmiss.write.set_fields, NULL); | |
5302 | break; | |
5303 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
5304 | error = parse_oxms(&payload, loose, | |
5305 | &tf->miss.write.set_fields, NULL); | |
5306 | break; | |
5307 | case OFPTFPT13_APPLY_SETFIELD: | |
5308 | error = parse_oxms(&payload, loose, | |
5309 | &tf->nonmiss.apply.set_fields, NULL); | |
5310 | break; | |
5311 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
5312 | error = parse_oxms(&payload, loose, | |
5313 | &tf->miss.apply.set_fields, NULL); | |
5314 | break; | |
5315 | ||
5316 | case OFPTFPT13_EXPERIMENTER: | |
5317 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 5318 | default: |
34a543e3 | 5319 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
5320 | break; |
5321 | } | |
5322 | if (error) { | |
5323 | return error; | |
5324 | } | |
5325 | } | |
5326 | ||
5327 | /* Fix inconsistencies: | |
5328 | * | |
e7227821 BP |
5329 | * - Turn on 'match' bits that are set in 'mask', because maskable |
5330 | * fields are matchable. | |
5deff5aa AW |
5331 | * |
5332 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
5333 | * that is arbitrarily maskable can be wildcarded entirely. |
5334 | * | |
5335 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
5336 | * must be matchable for it to be meaningfully wildcarded. */ | |
5337 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 5338 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 5339 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
5340 | |
5341 | return 0; | |
5342 | } | |
5343 | ||
5344 | /* Encodes and returns a request to obtain the table features of a switch. | |
5345 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5346 | struct ofpbuf * | |
5347 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
5348 | { | |
5349 | struct ofpbuf *request = NULL; | |
5350 | ||
5351 | switch (ofp_version) { | |
5352 | case OFP10_VERSION: | |
5353 | case OFP11_VERSION: | |
5354 | case OFP12_VERSION: | |
5355 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
5356 | "(\'-O OpenFlow13\')"); | |
5357 | case OFP13_VERSION: | |
5358 | case OFP14_VERSION: | |
42dccab5 | 5359 | case OFP15_VERSION: |
b79d45a1 | 5360 | case OFP16_VERSION: |
5deff5aa AW |
5361 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
5362 | ofp_version, 0); | |
5363 | break; | |
5364 | default: | |
5365 | OVS_NOT_REACHED(); | |
5366 | } | |
5367 | ||
5368 | return request; | |
5369 | } | |
5370 | ||
3c4e10fb BP |
5371 | static void |
5372 | put_fields_property(struct ofpbuf *reply, | |
5373 | const struct mf_bitmap *fields, | |
5374 | const struct mf_bitmap *masks, | |
5375 | enum ofp13_table_feature_prop_type property, | |
5376 | enum ofp_version version) | |
5377 | { | |
5378 | size_t start_ofs; | |
5379 | int field; | |
5380 | ||
c5562271 | 5381 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 5382 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
5383 | nx_put_header(reply, field, version, |
5384 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 5385 | } |
c5562271 | 5386 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5387 | } |
5388 | ||
5389 | static void | |
5390 | put_table_action_features(struct ofpbuf *reply, | |
5391 | const struct ofputil_table_action_features *taf, | |
5392 | enum ofp13_table_feature_prop_type actions_type, | |
5393 | enum ofp13_table_feature_prop_type set_fields_type, | |
5394 | int miss_offset, enum ofp_version version) | |
5395 | { | |
c5562271 BP |
5396 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
5397 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
5398 | version))); | |
3c4e10fb BP |
5399 | put_fields_property(reply, &taf->set_fields, NULL, |
5400 | set_fields_type + miss_offset, version); | |
5401 | } | |
5402 | ||
5403 | static void | |
5404 | put_table_instruction_features( | |
5405 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
5406 | int miss_offset, enum ofp_version version) | |
5407 | { | |
5408 | size_t start_ofs; | |
5409 | uint8_t table_id; | |
5410 | ||
c5562271 BP |
5411 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
5412 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
5413 | version))); | |
3c4e10fb | 5414 | |
c5562271 | 5415 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
5416 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
5417 | ofpbuf_put(reply, &table_id, 1); | |
5418 | } | |
c5562271 | 5419 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5420 | |
5421 | put_table_action_features(reply, &tif->write, | |
5422 | OFPTFPT13_WRITE_ACTIONS, | |
5423 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
5424 | put_table_action_features(reply, &tif->apply, | |
5425 | OFPTFPT13_APPLY_ACTIONS, | |
5426 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
5427 | } | |
5428 | ||
5429 | void | |
5430 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 5431 | struct ovs_list *replies) |
3c4e10fb | 5432 | { |
417e7e66 | 5433 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
3c4e10fb | 5434 | enum ofp_version version = ofpmp_version(replies); |
6fd6ed71 | 5435 | size_t start_ofs = reply->size; |
3c4e10fb BP |
5436 | struct ofp13_table_features *otf; |
5437 | ||
5438 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
5439 | otf->table_id = tf->table_id; | |
5440 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
5441 | otf->metadata_match = tf->metadata_match; | |
5442 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
5443 | if (version >= OFP14_VERSION) { |
5444 | if (tf->supports_eviction) { | |
5445 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
5446 | } | |
5447 | if (tf->supports_vacancy_events) { | |
5448 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
5449 | } | |
5450 | } | |
3c4e10fb BP |
5451 | otf->max_entries = htonl(tf->max_entries); |
5452 | ||
5453 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
5454 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
5455 | ||
5456 | put_fields_property(reply, &tf->match, &tf->mask, | |
5457 | OFPTFPT13_MATCH, version); | |
5458 | put_fields_property(reply, &tf->wildcard, NULL, | |
5459 | OFPTFPT13_WILDCARDS, version); | |
5460 | ||
5461 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5462 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5463 | ofpmp_postappend(replies, start_ofs); |
5464 | } | |
5465 | ||
bab86012 SJ |
5466 | static enum ofperr |
5467 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5468 | struct ofputil_table_desc *td) | |
5469 | { | |
5470 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5471 | ||
5472 | if (property->size != sizeof *otv) { | |
5473 | return OFPERR_OFPBPC_BAD_LEN; | |
5474 | } | |
5475 | ||
5476 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5477 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5478 | td->table_vacancy.vacancy = otv->vacancy; | |
5479 | return 0; | |
5480 | } | |
5481 | ||
03c72922 BP |
5482 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5483 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5484 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5485 | * value. */ | |
5486 | int | |
5487 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5488 | struct ofputil_table_desc *td, | |
5489 | enum ofp_version version) | |
5490 | { | |
03c72922 BP |
5491 | memset(td, 0, sizeof *td); |
5492 | ||
5493 | if (!msg->header) { | |
5494 | ofpraw_pull_assert(msg); | |
5495 | } | |
5496 | ||
5497 | if (!msg->size) { | |
5498 | return EOF; | |
5499 | } | |
5500 | ||
0a2869d5 | 5501 | struct ofp14_table_desc *otd = ofpbuf_try_pull(msg, sizeof *otd); |
03c72922 BP |
5502 | if (!otd) { |
5503 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5504 | "leftover bytes at end", msg->size); | |
5505 | return OFPERR_OFPBRC_BAD_LEN; | |
5506 | } | |
5507 | ||
5508 | td->table_id = otd->table_id; | |
0a2869d5 | 5509 | size_t length = ntohs(otd->length); |
03c72922 BP |
5510 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { |
5511 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5512 | "length %"PRIuSIZE, length); | |
5513 | return OFPERR_OFPBRC_BAD_LEN; | |
5514 | } | |
5515 | length -= sizeof *otd; | |
03c72922 BP |
5516 | |
5517 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5518 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5519 | td->eviction_flags = UINT32_MAX; |
5520 | ||
0a2869d5 BP |
5521 | struct ofpbuf properties = ofpbuf_const_initializer( |
5522 | ofpbuf_pull(msg, length), length); | |
03c72922 BP |
5523 | while (properties.size > 0) { |
5524 | struct ofpbuf payload; | |
5525 | enum ofperr error; | |
34a543e3 | 5526 | uint64_t type; |
03c72922 | 5527 | |
c5562271 | 5528 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5529 | if (error) { |
5530 | return error; | |
5531 | } | |
5532 | ||
5533 | switch (type) { | |
5534 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5535 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5536 | break; |
5537 | ||
bab86012 SJ |
5538 | case OFPTMPT14_VACANCY: |
5539 | error = parse_table_desc_vacancy_property(&payload, td); | |
5540 | break; | |
5541 | ||
03c72922 | 5542 | default: |
34a543e3 | 5543 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5544 | break; |
5545 | } | |
5546 | ||
5547 | if (error) { | |
5548 | return error; | |
5549 | } | |
5550 | } | |
5551 | ||
5552 | return 0; | |
5553 | } | |
5554 | ||
5555 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5556 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5557 | struct ofpbuf * | |
5558 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5559 | { | |
5560 | struct ofpbuf *request = NULL; | |
5561 | ||
5562 | if (ofp_version >= OFP14_VERSION) { | |
5563 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5564 | ofp_version, 0); | |
5565 | } else { | |
5566 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5567 | "(\'-O OpenFlow14\')"); | |
5568 | } | |
5569 | ||
5570 | return request; | |
5571 | } | |
5572 | ||
5573 | /* Function to append Table desc information in a reply list. */ | |
5574 | void | |
5575 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5576 | struct ovs_list *replies, | |
5577 | enum ofp_version version) | |
5578 | { | |
417e7e66 | 5579 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
03c72922 BP |
5580 | size_t start_otd; |
5581 | struct ofp14_table_desc *otd; | |
5582 | ||
5583 | start_otd = reply->size; | |
5584 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5585 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5586 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5587 | } |
bab86012 SJ |
5588 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5589 | struct ofp14_table_mod_prop_vacancy *otv; | |
5590 | ||
303721ee | 5591 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5592 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5593 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5594 | otv->vacancy = td->table_vacancy.vacancy; | |
5595 | } | |
03c72922 BP |
5596 | |
5597 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5598 | otd->length = htons(reply->size - start_otd); | |
5599 | otd->table_id = td->table_id; | |
5600 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5601 | td->eviction, td->vacancy, |
5602 | version); | |
03c72922 BP |
5603 | ofpmp_postappend(replies, start_otd); |
5604 | } | |
5605 | ||
de7d3c07 SJ |
5606 | /* This function parses Vacancy property, and decodes the |
5607 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5608 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5609 | * greater than vacancy_up and also when current vacancy has non-zero | |
5610 | * value. Returns 0 on success. */ | |
5611 | static enum ofperr | |
5612 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5613 | struct ofputil_table_mod *tm) | |
5614 | { | |
5615 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5616 | ||
5617 | if (property->size != sizeof *otv) { | |
5618 | return OFPERR_OFPBPC_BAD_LEN; | |
5619 | } | |
5620 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5621 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5622 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5623 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5624 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5625 | return OFPERR_OFPBPC_BAD_VALUE; |
5626 | } | |
5627 | if (tm->table_vacancy.vacancy_down > 100 || | |
5628 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5629 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5630 | "should not be greater than 100"); | |
de7d3c07 SJ |
5631 | return OFPERR_OFPBPC_BAD_VALUE; |
5632 | } | |
5633 | tm->table_vacancy.vacancy = otv->vacancy; | |
5634 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5635 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5636 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5637 | return OFPERR_OFPBPC_BAD_VALUE; |
5638 | } | |
5639 | return 0; | |
5640 | } | |
5641 | ||
5642 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5643 | * table configuration (a table mod, table stats, or table features message), | |
5644 | * returns the table vacancy configuration that it specifies. | |
5645 | * | |
5646 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5647 | * so for other 'version' this function always returns | |
5648 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5649 | static enum ofputil_table_vacancy | |
5650 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5651 | { | |
5652 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5653 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5654 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5655 | } | |
5656 | ||
3c1bb396 BP |
5657 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5658 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5659 | * returns the table eviction configuration that it specifies. |
5660 | * | |
5661 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5662 | * so for other 'version' values this function always returns | |
5663 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5664 | static enum ofputil_table_eviction | |
5665 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5666 | { | |
5667 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5668 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5669 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5670 | } | |
5671 | ||
5672 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5673 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5674 | * 'eviction' values. */ | |
5675 | static ovs_be32 | |
5676 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5677 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5678 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5679 | enum ofp_version version) |
5680 | { | |
de7d3c07 | 5681 | uint32_t config = 0; |
7c9afefd | 5682 | /* Search for "OFPTC_* Table Configuration" in the documentation for more |
82c22d34 BP |
5683 | * information on the crazy evolution of this field. */ |
5684 | switch (version) { | |
5685 | case OFP10_VERSION: | |
5686 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5687 | return htonl(0); | |
5688 | ||
5689 | case OFP11_VERSION: | |
5690 | case OFP12_VERSION: | |
5691 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5692 | switch (miss) { | |
5693 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5694 | /* Really this shouldn't be used for encoding (the caller should | |
5695 | * provide a specific value) but I can't imagine that defaulting to | |
5696 | * the fall-through case here will hurt. */ | |
5697 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5698 | default: | |
5699 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5700 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5701 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5702 | case OFPUTIL_TABLE_MISS_DROP: | |
5703 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5704 | } | |
5705 | OVS_NOT_REACHED(); | |
5706 | ||
5707 | case OFP13_VERSION: | |
5708 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5709 | * flags, so this is correct. */ | |
5710 | return htonl(0); | |
5711 | ||
5712 | case OFP14_VERSION: | |
5713 | case OFP15_VERSION: | |
b79d45a1 | 5714 | case OFP16_VERSION: |
de7d3c07 SJ |
5715 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5716 | * OFPTC14_VACANCY_EVENTS. */ | |
5717 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5718 | config |= OFPTC14_EVICTION; | |
5719 | } | |
5720 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5721 | config |= OFPTC14_VACANCY_EVENTS; | |
5722 | } | |
5723 | return htonl(config); | |
82c22d34 BP |
5724 | } |
5725 | ||
5726 | OVS_NOT_REACHED(); | |
5727 | } | |
5728 | ||
5729 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5730 | * table configuration (a table mod, table stats, or table features message), | |
5731 | * returns the table miss configuration that it specifies. | |
5732 | * | |
5733 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5734 | * other 'version' values this function always returns | |
5735 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5736 | static enum ofputil_table_miss |
82c22d34 | 5737 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5738 | { |
5739 | uint32_t config = ntohl(config_); | |
5740 | ||
82c22d34 | 5741 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5742 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5743 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5744 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5745 | ||
5746 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5747 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5748 | ||
5749 | case OFPTC11_TABLE_MISS_DROP: | |
5750 | return OFPUTIL_TABLE_MISS_DROP; | |
5751 | ||
5752 | default: | |
5753 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5754 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5755 | } | |
5756 | } else { | |
5757 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5758 | } | |
5759 | } | |
5760 | ||
918f2b82 AZ |
5761 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5762 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5763 | enum ofperr | |
5764 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5765 | struct ofputil_table_mod *pm) | |
5766 | { | |
82c22d34 BP |
5767 | memset(pm, 0, sizeof *pm); |
5768 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5769 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5770 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5771 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 | 5772 | |
0a2869d5 BP |
5773 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5774 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
918f2b82 | 5775 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { |
6fd6ed71 | 5776 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5777 | |
5778 | pm->table_id = otm->table_id; | |
82c22d34 | 5779 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5780 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5781 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5782 | ||
5783 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5784 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5785 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5786 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5787 | while (b.size > 0) { |
5788 | struct ofpbuf property; | |
5789 | enum ofperr error; | |
34a543e3 | 5790 | uint64_t type; |
82c22d34 | 5791 | |
c5562271 | 5792 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5793 | if (error) { |
5794 | return error; | |
5795 | } | |
5796 | ||
5797 | switch (type) { | |
5798 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5799 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5800 | break; |
5801 | ||
de7d3c07 SJ |
5802 | case OFPTMPT14_VACANCY: |
5803 | error = parse_table_mod_vacancy_property(&property, pm); | |
5804 | break; | |
5805 | ||
82c22d34 BP |
5806 | default: |
5807 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5808 | break; | |
5809 | } | |
5810 | ||
5811 | if (error) { | |
5812 | return error; | |
5813 | } | |
5814 | } | |
918f2b82 AZ |
5815 | } else { |
5816 | return OFPERR_OFPBRC_BAD_TYPE; | |
5817 | } | |
5818 | ||
5819 | return 0; | |
5820 | } | |
5821 | ||
82c22d34 BP |
5822 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5823 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5824 | * buffer owned by the caller. */ | |
918f2b82 | 5825 | struct ofpbuf * |
82c22d34 | 5826 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5827 | enum ofputil_protocol protocol) |
5828 | { | |
5829 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5830 | struct ofpbuf *b; | |
5831 | ||
5832 | switch (ofp_version) { | |
5833 | case OFP10_VERSION: { | |
5834 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5835 | "(\'-O OpenFlow11\')"); | |
5836 | break; | |
5837 | } | |
5838 | case OFP11_VERSION: | |
5839 | case OFP12_VERSION: | |
5840 | case OFP13_VERSION: { | |
5841 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5842 | |
918f2b82 AZ |
5843 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5844 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5845 | otm->table_id = tm->table_id; |
5846 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5847 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5848 | break; |
5849 | } | |
42dccab5 | 5850 | case OFP14_VERSION: |
b79d45a1 BP |
5851 | case OFP15_VERSION: |
5852 | case OFP16_VERSION: { | |
37ab26e8 BP |
5853 | struct ofp14_table_mod *otm; |
5854 | ||
5855 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5856 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5857 | otm->table_id = tm->table_id; |
5858 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5859 | tm->vacancy, ofp_version); |
82c22d34 BP |
5860 | |
5861 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5862 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 5863 | } |
de7d3c07 | 5864 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
5865 | struct ofp14_table_mod_prop_vacancy *otv; |
5866 | ||
5867 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
5868 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
5869 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5870 | } | |
c37c0382 | 5871 | break; |
37ab26e8 | 5872 | } |
2e3fa633 | 5873 | default: |
428b2edd | 5874 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5875 | } |
5876 | ||
5877 | return b; | |
5878 | } | |
2b07c8b1 | 5879 | \f |
6ea4776b JR |
5880 | /* ofputil_role_request */ |
5881 | ||
5882 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5883 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5884 | * OFPERR_* value. */ | |
5885 | enum ofperr | |
5886 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5887 | struct ofputil_role_request *rr) | |
5888 | { | |
0a2869d5 BP |
5889 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5890 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
f4f1ea7e BP |
5891 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5892 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5893 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5894 | |
f4f1ea7e BP |
5895 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5896 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5897 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5898 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5899 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5900 | } |
5901 | ||
f4f1ea7e | 5902 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5903 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5904 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5905 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5906 | rr->have_generation_id = false; |
5907 | rr->generation_id = 0; | |
5908 | } else { | |
5909 | rr->have_generation_id = true; | |
5910 | rr->generation_id = ntohll(orr->generation_id); | |
5911 | } | |
5912 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5913 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5914 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5915 | |
5916 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5917 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5918 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5919 | ||
5920 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5921 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5922 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5923 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5924 | } | |
6ea4776b | 5925 | |
f4f1ea7e BP |
5926 | rr->role = ntohl(nrr->role) + 1; |
5927 | rr->have_generation_id = false; | |
5928 | rr->generation_id = 0; | |
5929 | } else { | |
428b2edd | 5930 | OVS_NOT_REACHED(); |
6ea4776b JR |
5931 | } |
5932 | ||
6ea4776b JR |
5933 | return 0; |
5934 | } | |
5935 | ||
5936 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5937 | * buffer owned by the caller. */ | |
5938 | struct ofpbuf * | |
5939 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5940 | const struct ofputil_role_request *rr) |
6ea4776b | 5941 | { |
6ea4776b | 5942 | struct ofpbuf *buf; |
6ea4776b JR |
5943 | enum ofpraw raw; |
5944 | ||
f4f1ea7e | 5945 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5946 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5947 | struct ofp12_role_request *orr; |
6ea4776b | 5948 | |
f4f1ea7e BP |
5949 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5950 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5951 | |
147cc9d3 BP |
5952 | orr->role = htonl(rr->role); |
5953 | orr->generation_id = htonll(rr->have_generation_id | |
5954 | ? rr->generation_id | |
5955 | : UINT64_MAX); | |
f4f1ea7e BP |
5956 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5957 | struct nx_role_request *nrr; | |
5958 | ||
5959 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5960 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5961 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5962 | ||
5963 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5964 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5965 | nrr->role = htonl(rr->role - 1); | |
5966 | } else { | |
428b2edd | 5967 | OVS_NOT_REACHED(); |
6ea4776b | 5968 | } |
6ea4776b JR |
5969 | |
5970 | return buf; | |
5971 | } | |
5972 | \f | |
6751a4b4 BP |
5973 | /* Encodes "role status" message 'status' for sending in the given |
5974 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5975 | * otherwise a null pointer. */ | |
00467f73 AC |
5976 | struct ofpbuf * |
5977 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5978 | enum ofputil_protocol protocol) | |
5979 | { | |
00467f73 | 5980 | enum ofp_version version; |
00467f73 AC |
5981 | |
5982 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5983 | if (version >= OFP14_VERSION) { |
5984 | struct ofp14_role_status *rstatus; | |
5985 | struct ofpbuf *buf; | |
5986 | ||
5987 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5988 | 0); | |
5989 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5990 | rstatus->role = htonl(status->role); | |
5991 | rstatus->reason = status->reason; | |
5992 | rstatus->generation_id = htonll(status->generation_id); | |
5993 | ||
5994 | return buf; | |
5995 | } else { | |
5996 | return NULL; | |
5997 | } | |
00467f73 AC |
5998 | } |
5999 | ||
6000 | enum ofperr | |
6001 | ofputil_decode_role_status(const struct ofp_header *oh, | |
6002 | struct ofputil_role_status *rs) | |
6003 | { | |
0a2869d5 BP |
6004 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6005 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
00467f73 AC |
6006 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); |
6007 | ||
0a2869d5 | 6008 | const struct ofp14_role_status *r = b.msg; |
00467f73 AC |
6009 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6010 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6011 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
6012 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6013 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6014 | } | |
6015 | ||
6016 | rs->role = ntohl(r->role); | |
6017 | rs->generation_id = ntohll(r->generation_id); | |
6018 | rs->reason = r->reason; | |
6019 | ||
6020 | return 0; | |
6021 | } | |
6022 | ||
3c35db62 NR |
6023 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
6024 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
6025 | struct ofpbuf * | |
6026 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
6027 | enum ofputil_protocol protocol) | |
6028 | { | |
6029 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6030 | struct ofpbuf *inner; | |
6031 | ||
6032 | switch (rf->reason) { | |
6033 | case OFPRFR_GROUP_MOD: | |
6034 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
6035 | break; | |
6036 | ||
6037 | case OFPRFR_METER_MOD: | |
6038 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
6039 | break; | |
6040 | ||
d18cc1ee | 6041 | case OFPRFR_N_REASONS: |
3c35db62 NR |
6042 | default: |
6043 | OVS_NOT_REACHED(); | |
6044 | } | |
6045 | ||
6046 | struct ofp_header *inner_oh = inner->data; | |
6047 | inner_oh->xid = rf->xid; | |
6048 | inner_oh->length = htons(inner->size); | |
6049 | ||
6050 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
6051 | ofp_version, htonl(0), | |
6052 | inner->size); | |
6053 | ofpbuf_put(outer, inner->data, inner->size); | |
6054 | ofpbuf_delete(inner); | |
6055 | ||
6056 | return outer; | |
6057 | } | |
6058 | ||
6059 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
6060 | * form into '*rf' and returns 0, and the caller is later responsible for | |
6061 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
6062 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
6063 | enum ofperr | |
6064 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
6065 | struct ofputil_requestforward *rf) | |
6066 | { | |
0a2869d5 | 6067 | struct ofpbuf b = ofpbuf_const_initializer(outer, ntohs(outer->length)); |
3c35db62 NR |
6068 | |
6069 | /* Skip past outer message. */ | |
6070 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
6071 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
6072 | ||
6073 | /* Validate inner message. */ | |
6074 | if (b.size < sizeof(struct ofp_header)) { | |
6075 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6076 | } | |
6077 | const struct ofp_header *inner = b.data; | |
6078 | unsigned int inner_len = ntohs(inner->length); | |
6079 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
6080 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6081 | } | |
6082 | if (inner->version != outer->version) { | |
6083 | return OFPERR_OFPBRC_BAD_VERSION; | |
6084 | } | |
6085 | ||
6086 | /* Parse inner message. */ | |
6087 | enum ofptype type; | |
0a2869d5 | 6088 | enum ofperr error = ofptype_decode(&type, inner); |
3c35db62 NR |
6089 | if (error) { |
6090 | return error; | |
6091 | } | |
6092 | ||
6093 | rf->xid = inner->xid; | |
6094 | if (type == OFPTYPE_GROUP_MOD) { | |
6095 | rf->reason = OFPRFR_GROUP_MOD; | |
6096 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
6097 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
6098 | if (error) { | |
6099 | free(rf->group_mod); | |
6100 | return error; | |
6101 | } | |
6102 | } else if (type == OFPTYPE_METER_MOD) { | |
6103 | rf->reason = OFPRFR_METER_MOD; | |
6104 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
6105 | ofpbuf_init(&rf->bands, 64); | |
6106 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
6107 | if (error) { | |
6108 | free(rf->meter_mod); | |
6109 | ofpbuf_uninit(&rf->bands); | |
6110 | return error; | |
6111 | } | |
6112 | } else { | |
6113 | return OFPERR_OFPBFC_MSG_UNSUP; | |
6114 | } | |
6115 | ||
6116 | return 0; | |
6117 | } | |
6118 | ||
6119 | /* Frees the content of 'rf', which should have been initialized through a | |
6120 | * successful call to ofputil_decode_requestforward(). */ | |
6121 | void | |
6122 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
6123 | { | |
6124 | if (!rf) { | |
6125 | return; | |
6126 | } | |
6127 | ||
6128 | switch (rf->reason) { | |
6129 | case OFPRFR_GROUP_MOD: | |
6130 | ofputil_uninit_group_mod(rf->group_mod); | |
6131 | free(rf->group_mod); | |
6132 | break; | |
6133 | ||
6134 | case OFPRFR_METER_MOD: | |
6135 | ofpbuf_uninit(&rf->bands); | |
6136 | free(rf->meter_mod); | |
d18cc1ee AA |
6137 | break; |
6138 | ||
6139 | case OFPRFR_N_REASONS: | |
6140 | OVS_NOT_REACHED(); | |
3c35db62 NR |
6141 | } |
6142 | } | |
6143 | ||
307975da SH |
6144 | /* Table stats. */ |
6145 | ||
3c1bb396 BP |
6146 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
6147 | * matched and a field that must be wildcarded. This function returns a bitmap | |
6148 | * that contains both kinds of fields. */ | |
6149 | static struct mf_bitmap | |
6150 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
6151 | { | |
6152 | struct mf_bitmap wc = features->match; | |
6153 | bitmap_not(wc.bm, MFF_N_IDS); | |
6154 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
6155 | return wc; | |
6156 | } | |
6157 | ||
6158 | struct ofp10_wc_map { | |
6159 | enum ofp10_flow_wildcards wc10; | |
6160 | enum mf_field_id mf; | |
6161 | }; | |
6162 | ||
6163 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
6164 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
6165 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
6166 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
6167 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
6168 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
6169 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
6170 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
6171 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
6172 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
6173 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
6174 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6175 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
6176 | }; | |
6177 | ||
6178 | static ovs_be32 | |
6179 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
6180 | { | |
6181 | const struct ofp10_wc_map *p; | |
6182 | uint32_t wc10 = 0; | |
6183 | ||
6184 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6185 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6186 | wc10 |= p->wc10; | |
6187 | } | |
6188 | } | |
6189 | return htonl(wc10); | |
6190 | } | |
6191 | ||
6192 | static struct mf_bitmap | |
6193 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
6194 | { | |
6195 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6196 | const struct ofp10_wc_map *p; | |
6197 | uint32_t wc10 = ntohl(wc10_); | |
6198 | ||
6199 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6200 | if (wc10 & p->wc10) { | |
6201 | bitmap_set1(fields.bm, p->mf); | |
6202 | } | |
6203 | } | |
6204 | return fields; | |
6205 | } | |
6206 | ||
307975da | 6207 | static void |
3c1bb396 BP |
6208 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
6209 | const struct ofputil_table_features *features, | |
307975da SH |
6210 | struct ofpbuf *buf) |
6211 | { | |
3c1bb396 | 6212 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 6213 | struct ofp10_table_stats *out; |
307975da | 6214 | |
3bdc692b | 6215 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6216 | out->table_id = features->table_id; |
6217 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6218 | out->wildcards = mf_bitmap_to_of10(&wc); | |
6219 | out->max_entries = htonl(features->max_entries); | |
6220 | out->active_count = htonl(stats->active_count); | |
6221 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
6222 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
6223 | } | |
6224 | ||
6225 | struct ofp11_wc_map { | |
6226 | enum ofp11_flow_match_fields wc11; | |
6227 | enum mf_field_id mf; | |
6228 | }; | |
6229 | ||
6230 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
6231 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
6232 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
6233 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6234 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
6235 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
6236 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
6237 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
6238 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
6239 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
6240 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
6241 | /* I don't know what OFPFMF11_TYPE means. */ | |
6242 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
6243 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
6244 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
6245 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
6246 | { OFPFMF11_METADATA, MFF_METADATA }, | |
6247 | }; | |
6248 | ||
6249 | static ovs_be32 | |
6250 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
6251 | { | |
6252 | const struct ofp11_wc_map *p; | |
6253 | uint32_t wc11 = 0; | |
6254 | ||
6255 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6256 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6257 | wc11 |= p->wc11; | |
307975da SH |
6258 | } |
6259 | } | |
3c1bb396 | 6260 | return htonl(wc11); |
307975da SH |
6261 | } |
6262 | ||
3c1bb396 BP |
6263 | static struct mf_bitmap |
6264 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
6265 | { | |
6266 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6267 | const struct ofp11_wc_map *p; | |
6268 | uint32_t wc11 = ntohl(wc11_); | |
6269 | ||
6270 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6271 | if (wc11 & p->wc11) { | |
6272 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
6273 | } |
6274 | } | |
3c1bb396 | 6275 | return fields; |
307975da SH |
6276 | } |
6277 | ||
6278 | static void | |
3c1bb396 BP |
6279 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
6280 | const struct ofputil_table_features *features, | |
307975da SH |
6281 | struct ofpbuf *buf) |
6282 | { | |
3c1bb396 | 6283 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
6284 | struct ofp11_table_stats *out; |
6285 | ||
3bdc692b | 6286 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6287 | out->table_id = features->table_id; |
6288 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6289 | out->wildcards = mf_bitmap_to_of11(&wc); | |
6290 | out->match = mf_bitmap_to_of11(&features->match); | |
6291 | out->instructions = ovsinst_bitmap_to_openflow( | |
6292 | features->nonmiss.instructions, OFP11_VERSION); | |
6293 | out->write_actions = ofpact_bitmap_to_openflow( | |
6294 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
6295 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6296 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
6297 | out->config = htonl(features->miss_config); | |
6298 | out->max_entries = htonl(features->max_entries); | |
6299 | out->active_count = htonl(stats->active_count); | |
6300 | out->lookup_count = htonll(stats->lookup_count); | |
6301 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
6302 | } |
6303 | ||
6240624b | 6304 | static void |
3c1bb396 BP |
6305 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
6306 | const struct ofputil_table_features *features, | |
6240624b BP |
6307 | struct ofpbuf *buf) |
6308 | { | |
08d1e234 | 6309 | struct ofp12_table_stats *out; |
6240624b | 6310 | |
08d1e234 | 6311 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6312 | out->table_id = features->table_id; |
6313 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
6314 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
6315 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
6316 | OFP12_VERSION); |
6317 | out->write_actions = ofpact_bitmap_to_openflow( | |
6318 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
6319 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6320 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 6321 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 6322 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 6323 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
6324 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
6325 | out->metadata_match = features->metadata_match; | |
6326 | out->metadata_write = features->metadata_write; | |
6327 | out->instructions = ovsinst_bitmap_to_openflow( | |
6328 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
6329 | out->config = ofputil_encode_table_config(features->miss_config, |
6330 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 6331 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 6332 | OFP12_VERSION); |
3c1bb396 BP |
6333 | out->max_entries = htonl(features->max_entries); |
6334 | out->active_count = htonl(stats->active_count); | |
6335 | out->lookup_count = htonll(stats->lookup_count); | |
6336 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
6337 | } |
6338 | ||
2e1ae200 | 6339 | static void |
3c1bb396 | 6340 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
6341 | struct ofpbuf *buf) |
6342 | { | |
6343 | struct ofp13_table_stats *out; | |
6344 | ||
3c1bb396 BP |
6345 | out = ofpbuf_put_zeros(buf, sizeof *out); |
6346 | out->table_id = stats->table_id; | |
6347 | out->active_count = htonl(stats->active_count); | |
6348 | out->lookup_count = htonll(stats->lookup_count); | |
6349 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
6350 | } |
6351 | ||
307975da | 6352 | struct ofpbuf * |
3c1bb396 | 6353 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 6354 | { |
3c1bb396 BP |
6355 | return ofpraw_alloc_stats_reply(request, 0); |
6356 | } | |
307975da | 6357 | |
3c1bb396 BP |
6358 | void |
6359 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
6360 | const struct ofputil_table_stats *stats, | |
6361 | const struct ofputil_table_features *features) | |
6362 | { | |
6fd6ed71 | 6363 | struct ofp_header *oh = reply->header; |
307975da | 6364 | |
3c1bb396 | 6365 | ovs_assert(stats->table_id == features->table_id); |
307975da | 6366 | |
3c1bb396 BP |
6367 | switch ((enum ofp_version) oh->version) { |
6368 | case OFP10_VERSION: | |
6369 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
6370 | break; | |
307975da | 6371 | |
3c1bb396 BP |
6372 | case OFP11_VERSION: |
6373 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
6374 | break; | |
307975da | 6375 | |
3c1bb396 BP |
6376 | case OFP12_VERSION: |
6377 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
6378 | break; | |
2e1ae200 | 6379 | |
3c1bb396 BP |
6380 | case OFP13_VERSION: |
6381 | case OFP14_VERSION: | |
6382 | case OFP15_VERSION: | |
b79d45a1 | 6383 | case OFP16_VERSION: |
3c1bb396 BP |
6384 | ofputil_put_ofp13_table_stats(stats, reply); |
6385 | break; | |
6386 | ||
6387 | default: | |
6388 | OVS_NOT_REACHED(); | |
307975da | 6389 | } |
3c1bb396 | 6390 | } |
307975da | 6391 | |
3c1bb396 BP |
6392 | static int |
6393 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
6394 | struct ofputil_table_stats *stats, | |
6395 | struct ofputil_table_features *features) | |
6396 | { | |
6397 | struct ofp10_table_stats *ots; | |
6398 | ||
6399 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6400 | if (!ots) { | |
6401 | return OFPERR_OFPBRC_BAD_LEN; | |
6402 | } | |
6403 | ||
6404 | features->table_id = ots->table_id; | |
6405 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6406 | features->max_entries = ntohl(ots->max_entries); | |
6407 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6408 | ||
6409 | stats->table_id = ots->table_id; | |
6410 | stats->active_count = ntohl(ots->active_count); | |
6411 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6412 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6413 | ||
6414 | return 0; | |
6415 | } | |
6416 | ||
6417 | static int | |
6418 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6419 | struct ofputil_table_stats *stats, | |
6420 | struct ofputil_table_features *features) | |
6421 | { | |
6422 | struct ofp11_table_stats *ots; | |
6423 | ||
6424 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6425 | if (!ots) { | |
6426 | return OFPERR_OFPBRC_BAD_LEN; | |
6427 | } | |
6428 | ||
6429 | features->table_id = ots->table_id; | |
6430 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6431 | features->max_entries = ntohl(ots->max_entries); | |
6432 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6433 | ots->instructions, OFP11_VERSION); | |
6434 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6435 | ots->write_actions, OFP11_VERSION); | |
6436 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6437 | ots->write_actions, OFP11_VERSION); | |
6438 | features->miss = features->nonmiss; | |
82c22d34 BP |
6439 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6440 | OFP11_VERSION); | |
3c1bb396 BP |
6441 | features->match = mf_bitmap_from_of11(ots->match); |
6442 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6443 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6444 | ||
6445 | stats->table_id = ots->table_id; | |
6446 | stats->active_count = ntohl(ots->active_count); | |
6447 | stats->lookup_count = ntohll(ots->lookup_count); | |
6448 | stats->matched_count = ntohll(ots->matched_count); | |
6449 | ||
6450 | return 0; | |
6451 | } | |
6452 | ||
6453 | static int | |
6454 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6455 | struct ofputil_table_stats *stats, | |
6456 | struct ofputil_table_features *features) | |
6457 | { | |
6458 | struct ofp12_table_stats *ots; | |
6459 | ||
6460 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6461 | if (!ots) { | |
6462 | return OFPERR_OFPBRC_BAD_LEN; | |
6463 | } | |
6464 | ||
6465 | features->table_id = ots->table_id; | |
6466 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6467 | features->metadata_match = ots->metadata_match; | |
6468 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6469 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6470 | OFP12_VERSION); | |
3c1bb396 BP |
6471 | features->max_entries = ntohl(ots->max_entries); |
6472 | ||
6473 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6474 | ots->instructions, OFP12_VERSION); | |
6475 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6476 | ots->write_actions, OFP12_VERSION); | |
6477 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6478 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6479 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6480 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6481 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6482 | ots->apply_setfields, OFP12_VERSION); |
6483 | features->miss = features->nonmiss; | |
6484 | ||
178742f9 BP |
6485 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6486 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6487 | OFP12_VERSION); | |
3c1bb396 BP |
6488 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6489 | ||
6490 | stats->table_id = ots->table_id; | |
6491 | stats->active_count = ntohl(ots->active_count); | |
6492 | stats->lookup_count = ntohll(ots->lookup_count); | |
6493 | stats->matched_count = ntohll(ots->matched_count); | |
6494 | ||
6495 | return 0; | |
6496 | } | |
6497 | ||
6498 | static int | |
6499 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6500 | struct ofputil_table_stats *stats, | |
6501 | struct ofputil_table_features *features) | |
6502 | { | |
6503 | struct ofp13_table_stats *ots; | |
6504 | ||
6505 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6506 | if (!ots) { | |
6507 | return OFPERR_OFPBRC_BAD_LEN; | |
6508 | } | |
6509 | ||
6510 | features->table_id = ots->table_id; | |
6511 | ||
6512 | stats->table_id = ots->table_id; | |
6513 | stats->active_count = ntohl(ots->active_count); | |
6514 | stats->lookup_count = ntohll(ots->lookup_count); | |
6515 | stats->matched_count = ntohll(ots->matched_count); | |
6516 | ||
6517 | return 0; | |
6518 | } | |
6519 | ||
6520 | int | |
6521 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6522 | struct ofputil_table_stats *stats, | |
6523 | struct ofputil_table_features *features) | |
6524 | { | |
6525 | const struct ofp_header *oh; | |
6526 | ||
6fd6ed71 | 6527 | if (!msg->header) { |
3c1bb396 BP |
6528 | ofpraw_pull_assert(msg); |
6529 | } | |
6fd6ed71 | 6530 | oh = msg->header; |
3c1bb396 | 6531 | |
6fd6ed71 | 6532 | if (!msg->size) { |
3c1bb396 BP |
6533 | return EOF; |
6534 | } | |
6535 | ||
6536 | memset(stats, 0, sizeof *stats); | |
6537 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6538 | features->supports_eviction = -1; |
6539 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6540 | |
6541 | switch ((enum ofp_version) oh->version) { | |
6542 | case OFP10_VERSION: | |
6543 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6544 | ||
6545 | case OFP11_VERSION: | |
6546 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6547 | ||
6548 | case OFP12_VERSION: | |
6549 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6550 | ||
6551 | case OFP13_VERSION: | |
6552 | case OFP14_VERSION: | |
6553 | case OFP15_VERSION: | |
b79d45a1 | 6554 | case OFP16_VERSION: |
3c1bb396 BP |
6555 | return ofputil_decode_ofp13_table_stats(msg, stats, features); |
6556 | ||
6557 | default: | |
6558 | OVS_NOT_REACHED(); | |
6559 | } | |
307975da SH |
6560 | } |
6561 | \f | |
2b07c8b1 BP |
6562 | /* ofputil_flow_monitor_request */ |
6563 | ||
6564 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6565 | * ofputil_flow_monitor_request in 'rq'. | |
6566 | * | |
6567 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6568 | * message. Calling this function multiple times for a single 'msg' iterates | |
6569 | * through the requests. The caller must initially leave 'msg''s layer | |
6570 | * pointers null and not modify them between calls. | |
6571 | * | |
6572 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6573 | * otherwise an OFPERR_* value. */ | |
6574 | int | |
6575 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6576 | struct ofpbuf *msg) | |
6577 | { | |
6578 | struct nx_flow_monitor_request *nfmr; | |
6579 | uint16_t flags; | |
6580 | ||
6fd6ed71 | 6581 | if (!msg->header) { |
982697a4 | 6582 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6583 | } |
6584 | ||
6fd6ed71 | 6585 | if (!msg->size) { |
2b07c8b1 BP |
6586 | return EOF; |
6587 | } | |
6588 | ||
6589 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6590 | if (!nfmr) { | |
437d0d22 | 6591 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6592 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6593 | return OFPERR_OFPBRC_BAD_LEN; |
6594 | } | |
6595 | ||
6596 | flags = ntohs(nfmr->flags); | |
6597 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6598 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6599 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6600 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6601 | flags); | |
04f9f286 | 6602 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6603 | } |
6604 | ||
6605 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6606 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6607 | } | |
6608 | ||
6609 | rq->id = ntohl(nfmr->id); | |
6610 | rq->flags = flags; | |
4e022ec0 | 6611 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6612 | rq->table_id = nfmr->table_id; |
6613 | ||
8d8ab6c2 JG |
6614 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, |
6615 | NULL, NULL); | |
2b07c8b1 BP |
6616 | } |
6617 | ||
6618 | void | |
6619 | ofputil_append_flow_monitor_request( | |
6620 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6621 | { | |
6622 | struct nx_flow_monitor_request *nfmr; | |
6623 | size_t start_ofs; | |
6624 | int match_len; | |
6625 | ||
6fd6ed71 | 6626 | if (!msg->size) { |
982697a4 | 6627 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6628 | } |
6629 | ||
6fd6ed71 | 6630 | start_ofs = msg->size; |
2b07c8b1 | 6631 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6632 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6633 | |
6634 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6635 | nfmr->id = htonl(rq->id); | |
6636 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6637 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6638 | nfmr->match_len = htons(match_len); |
6639 | nfmr->table_id = rq->table_id; | |
6640 | } | |
6641 | ||
6642 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6643 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6644 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6645 | * |
6646 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6647 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6648 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6649 | * will point into the 'ofpacts' buffer. | |
6650 | * | |
6651 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6652 | * this function multiple times for a single 'msg' iterates through the | |
6653 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6654 | * not modify them between calls. | |
6655 | * | |
6656 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6657 | * otherwise an OFPERR_* value. */ | |
6658 | int | |
6659 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6660 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6661 | { | |
6662 | struct nx_flow_update_header *nfuh; | |
6663 | unsigned int length; | |
e3f8f887 | 6664 | struct ofp_header *oh; |
2b07c8b1 | 6665 | |
6fd6ed71 | 6666 | if (!msg->header) { |
982697a4 | 6667 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6668 | } |
6669 | ||
9abca1e5 | 6670 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6671 | if (!msg->size) { |
2b07c8b1 BP |
6672 | return EOF; |
6673 | } | |
6674 | ||
6fd6ed71 | 6675 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6676 | goto bad_len; |
6677 | } | |
6678 | ||
6fd6ed71 | 6679 | oh = msg->header; |
e3f8f887 | 6680 | |
6fd6ed71 | 6681 | nfuh = msg->data; |
2b07c8b1 BP |
6682 | update->event = ntohs(nfuh->event); |
6683 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6684 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6685 | goto bad_len; |
6686 | } | |
6687 | ||
6688 | if (update->event == NXFME_ABBREV) { | |
6689 | struct nx_flow_update_abbrev *nfua; | |
6690 | ||
6691 | if (length != sizeof *nfua) { | |
6692 | goto bad_len; | |
6693 | } | |
6694 | ||
6695 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6696 | update->xid = nfua->xid; | |
6697 | return 0; | |
6698 | } else if (update->event == NXFME_ADDED | |
6699 | || update->event == NXFME_DELETED | |
6700 | || update->event == NXFME_MODIFIED) { | |
6701 | struct nx_flow_update_full *nfuf; | |
6702 | unsigned int actions_len; | |
6703 | unsigned int match_len; | |
6704 | enum ofperr error; | |
6705 | ||
6706 | if (length < sizeof *nfuf) { | |
6707 | goto bad_len; | |
6708 | } | |
6709 | ||
6710 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6711 | match_len = ntohs(nfuf->match_len); | |
6712 | if (sizeof *nfuf + match_len > length) { | |
6713 | goto bad_len; | |
6714 | } | |
6715 | ||
6716 | update->reason = ntohs(nfuf->reason); | |
6717 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6718 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6719 | update->table_id = nfuf->table_id; | |
6720 | update->cookie = nfuf->cookie; | |
81a76618 | 6721 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6722 | |
140f36ba | 6723 | error = nx_pull_match(msg, match_len, &update->match, NULL, NULL, NULL); |
2b07c8b1 BP |
6724 | if (error) { |
6725 | return error; | |
6726 | } | |
6727 | ||
6728 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6729 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6730 | ofpacts); | |
2b07c8b1 BP |
6731 | if (error) { |
6732 | return error; | |
6733 | } | |
6734 | ||
6fd6ed71 PS |
6735 | update->ofpacts = ofpacts->data; |
6736 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6737 | return 0; |
6738 | } else { | |
6739 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6740 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6741 | ntohs(nfuh->event)); | |
15549878 | 6742 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6743 | } |
6744 | ||
6745 | bad_len: | |
437d0d22 | 6746 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6747 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6748 | return OFPERR_OFPBRC_BAD_LEN; |
6749 | } | |
6750 | ||
6751 | uint32_t | |
6752 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6753 | { | |
982697a4 BP |
6754 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6755 | ||
6756 | return ntohl(cancel->id); | |
2b07c8b1 | 6757 | } |
9e1fd49b | 6758 | |
2b07c8b1 BP |
6759 | struct ofpbuf * |
6760 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6761 | { | |
6762 | struct nx_flow_monitor_cancel *nfmc; | |
6763 | struct ofpbuf *msg; | |
6764 | ||
982697a4 BP |
6765 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6766 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6767 | nfmc->id = htonl(id); |
6768 | return msg; | |
6769 | } | |
6770 | ||
6771 | void | |
ca6ba700 | 6772 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6773 | { |
6774 | struct ofpbuf *msg; | |
6775 | ||
982697a4 BP |
6776 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6777 | htonl(0), 1024); | |
2b07c8b1 | 6778 | |
417e7e66 BW |
6779 | ovs_list_init(replies); |
6780 | ovs_list_push_back(replies, &msg->list_node); | |
2b07c8b1 BP |
6781 | } |
6782 | ||
6783 | void | |
6784 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
140f36ba DDP |
6785 | struct ovs_list *replies, |
6786 | const struct tun_table *tun_table) | |
2b07c8b1 | 6787 | { |
140f36ba DDP |
6788 | struct ofputil_flow_update *update_ = |
6789 | CONST_CAST(struct ofputil_flow_update *, update); | |
6790 | const struct tun_table *orig_tun_table; | |
e28ac5cf | 6791 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6792 | struct nx_flow_update_header *nfuh; |
6793 | struct ofpbuf *msg; | |
6794 | size_t start_ofs; | |
6795 | ||
140f36ba DDP |
6796 | orig_tun_table = update->match.flow.tunnel.metadata.tab; |
6797 | update_->match.flow.tunnel.metadata.tab = tun_table; | |
6798 | ||
417e7e66 | 6799 | msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 6800 | start_ofs = msg->size; |
2b07c8b1 BP |
6801 | |
6802 | if (update->event == NXFME_ABBREV) { | |
6803 | struct nx_flow_update_abbrev *nfua; | |
6804 | ||
6805 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6806 | nfua->xid = update->xid; | |
6807 | } else { | |
6808 | struct nx_flow_update_full *nfuf; | |
6809 | int match_len; | |
6810 | ||
6811 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
140f36ba | 6812 | match_len = nx_put_match(msg, &update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6813 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6814 | version); | |
2b07c8b1 BP |
6815 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6816 | nfuf->reason = htons(update->reason); | |
81a76618 | 6817 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6818 | nfuf->idle_timeout = htons(update->idle_timeout); |
6819 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6820 | nfuf->match_len = htons(match_len); | |
6821 | nfuf->table_id = update->table_id; | |
6822 | nfuf->cookie = update->cookie; | |
6823 | } | |
6824 | ||
6825 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6826 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6827 | nfuh->event = htons(update->event); |
6828 | ||
982697a4 | 6829 | ofpmp_postappend(replies, start_ofs); |
140f36ba | 6830 | update_->match.flow.tunnel.metadata.tab = orig_tun_table; |
2b07c8b1 BP |
6831 | } |
6832 | \f | |
c6a93eb7 | 6833 | struct ofpbuf * |
de0f3156 SH |
6834 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6835 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6836 | { |
de0f3156 | 6837 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6838 | struct ofpbuf *msg; |
6839 | size_t size; | |
6840 | ||
982697a4 | 6841 | size = po->ofpacts_len; |
c6a93eb7 BP |
6842 | if (po->buffer_id == UINT32_MAX) { |
6843 | size += po->packet_len; | |
6844 | } | |
6845 | ||
de0f3156 SH |
6846 | switch (ofp_version) { |
6847 | case OFP10_VERSION: { | |
31a9e63f | 6848 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6849 | size_t actions_ofs; |
6850 | ||
6851 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6852 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6853 | actions_ofs = msg->size; |
e3f8f887 JR |
6854 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6855 | ofp_version); | |
de0f3156 | 6856 | |
6fd6ed71 | 6857 | opo = msg->msg; |
de0f3156 | 6858 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6859 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6860 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6861 | break; |
6862 | } | |
f25d0cf3 | 6863 | |
de0f3156 | 6864 | case OFP11_VERSION: |
2e1ae200 | 6865 | case OFP12_VERSION: |
c37c0382 | 6866 | case OFP13_VERSION: |
42dccab5 | 6867 | case OFP14_VERSION: |
b79d45a1 BP |
6868 | case OFP15_VERSION: |
6869 | case OFP16_VERSION: { | |
7c1b1a0d SH |
6870 | struct ofp11_packet_out *opo; |
6871 | size_t len; | |
6872 | ||
6873 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6874 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6875 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6876 | ofp_version); | |
6fd6ed71 | 6877 | opo = msg->msg; |
7c1b1a0d SH |
6878 | opo->buffer_id = htonl(po->buffer_id); |
6879 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6880 | opo->actions_len = htons(len); | |
6881 | break; | |
6882 | } | |
6883 | ||
de0f3156 | 6884 | default: |
428b2edd | 6885 | OVS_NOT_REACHED(); |
de0f3156 | 6886 | } |
f25d0cf3 | 6887 | |
c6a93eb7 BP |
6888 | if (po->buffer_id == UINT32_MAX) { |
6889 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6890 | } | |
f25d0cf3 | 6891 | |
982697a4 | 6892 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6893 | |
6894 | return msg; | |
6895 | } | |
d1e2cf21 | 6896 | \f |
fa37b408 BP |
6897 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6898 | struct ofpbuf * | |
1a126c0c | 6899 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6900 | { |
1a126c0c | 6901 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6902 | htonl(0), 0); |
fa37b408 BP |
6903 | } |
6904 | ||
6905 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6906 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6907 | struct ofpbuf * | |
6908 | make_echo_reply(const struct ofp_header *rq) | |
6909 | { | |
0a2869d5 | 6910 | struct ofpbuf rq_buf = ofpbuf_const_initializer(rq, ntohs(rq->length)); |
982697a4 BP |
6911 | ofpraw_pull_assert(&rq_buf); |
6912 | ||
0a2869d5 BP |
6913 | struct ofpbuf *reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, |
6914 | rq, rq_buf.size); | |
6fd6ed71 | 6915 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); |
982697a4 | 6916 | return reply; |
fa37b408 BP |
6917 | } |
6918 | ||
efb80167 | 6919 | struct ofpbuf * |
a0ae0b6e | 6920 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6921 | { |
a0ae0b6e SH |
6922 | enum ofpraw type; |
6923 | ||
6924 | switch (ofp_version) { | |
b79d45a1 | 6925 | case OFP16_VERSION: |
42dccab5 | 6926 | case OFP15_VERSION: |
c37c0382 | 6927 | case OFP14_VERSION: |
2e1ae200 | 6928 | case OFP13_VERSION: |
a0ae0b6e SH |
6929 | case OFP12_VERSION: |
6930 | case OFP11_VERSION: | |
6931 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6932 | break; | |
6933 | ||
6934 | case OFP10_VERSION: | |
6935 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6936 | break; | |
6937 | ||
6938 | default: | |
428b2edd | 6939 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6940 | } |
6941 | ||
6942 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6943 | } |
6944 | ||
7257b535 | 6945 | const char * |
ad99e2ed | 6946 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6947 | { |
ad99e2ed BP |
6948 | switch (frag) { |
6949 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6950 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6951 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6952 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6953 | } |
6954 | ||
428b2edd | 6955 | OVS_NOT_REACHED(); |
7257b535 BP |
6956 | } |
6957 | ||
6958 | bool | |
ad99e2ed BP |
6959 | ofputil_frag_handling_from_string(const char *s, |
6960 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6961 | { |
6962 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6963 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6964 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6965 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6966 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6967 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6968 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6969 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6970 | } else { |
6971 | return false; | |
6972 | } | |
6973 | return true; | |
6974 | } | |
6975 | ||
7b7503ea BP |
6976 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6977 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6978 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6979 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6980 | * |
6981 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6982 | enum ofperr | |
4e022ec0 | 6983 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6984 | { |
6985 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6986 | ||
4e022ec0 AW |
6987 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6988 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6989 | return 0; |
4e022ec0 AW |
6990 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6991 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6992 | return 0; |
6993 | } else { | |
bc146369 | 6994 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6995 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6996 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6997 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6998 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6999 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
7000 | } | |
7001 | } | |
7002 | ||
7003 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
7004 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
7005 | * | |
7006 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7007 | ovs_be32 | |
4e022ec0 | 7008 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 7009 | { |
4e022ec0 AW |
7010 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
7011 | ? ofp_to_u16(ofp10_port) | |
7012 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
7013 | } |
7014 | ||
39dc9082 BP |
7015 | #define OFPUTIL_NAMED_PORTS \ |
7016 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
7017 | OFPUTIL_NAMED_PORT(TABLE) \ | |
7018 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
7019 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
7020 | OFPUTIL_NAMED_PORT(ALL) \ | |
7021 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
7022 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
7023 | OFPUTIL_NAMED_PORT(ANY) \ |
7024 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
7025 | |
7026 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
7027 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
7028 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
7029 | OFPUTIL_NAMED_PORT(NONE) |
7030 | ||
8010100b BP |
7031 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
7032 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
7033 | * (e.g. "LOCAL"). | |
c6100d92 | 7034 | * |
8010100b BP |
7035 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
7036 | * or name. The caller should issue an error message in this case, because | |
7037 | * this function usually does not. (This gives the caller an opportunity to | |
7038 | * look up the port name another way, e.g. by contacting the switch and listing | |
7039 | * the names of all its ports). | |
c6100d92 BP |
7040 | * |
7041 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
7042 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
7043 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 7044 | bool |
4e022ec0 | 7045 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 7046 | { |
5b23ff7e | 7047 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 7048 | |
5b23ff7e JR |
7049 | if (*s == '-') { |
7050 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
7051 | return false; | |
7052 | } | |
8010100b | 7053 | *portp = 0; |
c6100d92 | 7054 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
7055 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
7056 | /* Pass. */ | |
7057 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
7058 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
7059 | "be translated to %u when talking to an OF1.1 or " | |
7060 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 7061 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
7062 | char name[OFP_MAX_PORT_NAME_LEN]; |
7063 | ||
7064 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
7065 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
7066 | "for compatibility with OpenFlow 1.1 and later", | |
7067 | name, port32); | |
4e022ec0 | 7068 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 7069 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 7070 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 7071 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 7072 | return false; |
c6100d92 | 7073 | } else { |
4e022ec0 | 7074 | port32 -= OFPP11_OFFSET; |
c6100d92 | 7075 | } |
4e022ec0 AW |
7076 | |
7077 | *portp = u16_to_ofp(port32); | |
7078 | return true; | |
c6100d92 BP |
7079 | } else { |
7080 | struct pair { | |
7081 | const char *name; | |
4e022ec0 | 7082 | ofp_port_t value; |
c6100d92 BP |
7083 | }; |
7084 | static const struct pair pairs[] = { | |
39dc9082 | 7085 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 7086 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 7087 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
7088 | }; |
7089 | const struct pair *p; | |
39dc9082 | 7090 | |
c6100d92 BP |
7091 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
7092 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
7093 | *portp = p->value; |
7094 | return true; | |
c6100d92 | 7095 | } |
39dc9082 | 7096 | } |
8010100b | 7097 | return false; |
39dc9082 | 7098 | } |
39dc9082 BP |
7099 | } |
7100 | ||
7101 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
7102 | * Most ports' string representation is just the port number, but for special | |
7103 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
7104 | void | |
4e022ec0 | 7105 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 7106 | { |
28b11432 BP |
7107 | char name[OFP_MAX_PORT_NAME_LEN]; |
7108 | ||
7109 | ofputil_port_to_string(port, name, sizeof name); | |
7110 | ds_put_cstr(s, name); | |
7111 | } | |
39dc9082 | 7112 | |
28b11432 BP |
7113 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
7114 | * representation of OpenFlow port number 'port'. Most ports are represented | |
7115 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
7116 | * by name, e.g. "LOCAL". */ | |
7117 | void | |
7118 | ofputil_port_to_string(ofp_port_t port, | |
7119 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
7120 | { | |
39dc9082 | 7121 | switch (port) { |
28b11432 BP |
7122 | #define OFPUTIL_NAMED_PORT(NAME) \ |
7123 | case OFPP_##NAME: \ | |
7124 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
7125 | break; | |
39dc9082 BP |
7126 | OFPUTIL_NAMED_PORTS |
7127 | #undef OFPUTIL_NAMED_PORT | |
7128 | ||
7129 | default: | |
28b11432 BP |
7130 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
7131 | break; | |
39dc9082 | 7132 | } |
39dc9082 BP |
7133 | } |
7134 | ||
7395c052 NZ |
7135 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
7136 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
7137 | * (either "ANY" or "ALL"). | |
7138 | * | |
7139 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
7140 | * name. */ | |
7141 | bool | |
7142 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
7143 | { | |
7144 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 7145 | *group_idp = OFPG_ANY; |
7395c052 | 7146 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 7147 | *group_idp = OFPG_ALL; |
7395c052 NZ |
7148 | } else if (!str_to_uint(s, 10, group_idp)) { |
7149 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
7150 | "32-bit nonnegative integers or the keywords ANY or " | |
7151 | "ALL.)", s); | |
7152 | return false; | |
7153 | } | |
7154 | ||
7155 | return true; | |
7156 | } | |
7157 | ||
7158 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
7159 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 7160 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
7161 | void |
7162 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
7163 | { | |
7164 | char name[MAX_GROUP_NAME_LEN]; | |
7165 | ||
7166 | ofputil_group_to_string(group_id, name, sizeof name); | |
7167 | ds_put_cstr(s, name); | |
7168 | } | |
7169 | ||
7170 | ||
7171 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
7172 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 7173 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
7174 | * by name, e.g. "ALL". */ |
7175 | void | |
7176 | ofputil_group_to_string(uint32_t group_id, | |
7177 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
7178 | { | |
7179 | switch (group_id) { | |
30ef36c6 | 7180 | case OFPG_ALL: |
7395c052 NZ |
7181 | ovs_strlcpy(namebuf, "ALL", bufsize); |
7182 | break; | |
7183 | ||
30ef36c6 | 7184 | case OFPG_ANY: |
7395c052 NZ |
7185 | ovs_strlcpy(namebuf, "ANY", bufsize); |
7186 | break; | |
7187 | ||
7188 | default: | |
7189 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
7190 | break; | |
7191 | } | |
7192 | } | |
7193 | ||
2be393ed JP |
7194 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
7195 | * 'ofp_version', tries to pull the first element from the array. If | |
7196 | * successful, initializes '*pp' with an abstract representation of the | |
7197 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
7198 | * On an error, returns a positive OFPERR_* value. */ | |
7199 | int | |
2e3fa633 | 7200 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
7201 | struct ofputil_phy_port *pp) |
7202 | { | |
8c3cc785 BP |
7203 | memset(pp, 0, sizeof *pp); |
7204 | ||
2e3fa633 SH |
7205 | switch (ofp_version) { |
7206 | case OFP10_VERSION: { | |
2be393ed JP |
7207 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
7208 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
7209 | } |
7210 | case OFP11_VERSION: | |
2e1ae200 JR |
7211 | case OFP12_VERSION: |
7212 | case OFP13_VERSION: { | |
2be393ed JP |
7213 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
7214 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
7215 | } | |
c37c0382 | 7216 | case OFP14_VERSION: |
42dccab5 | 7217 | case OFP15_VERSION: |
b79d45a1 | 7218 | case OFP16_VERSION: |
6fd6ed71 | 7219 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 7220 | default: |
428b2edd | 7221 | OVS_NOT_REACHED(); |
2e3fa633 | 7222 | } |
2be393ed JP |
7223 | } |
7224 | ||
3cbd9931 | 7225 | static void |
81a76618 | 7226 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
7227 | { |
7228 | enum { | |
7229 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
7230 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
7231 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 7232 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
7233 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
7234 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 7235 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
7236 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
7237 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
7238 | } may_match; |
7239 | ||
7240 | struct flow_wildcards wc; | |
7241 | ||
7242 | /* Figure out what fields may be matched. */ | |
81a76618 | 7243 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 7244 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
7245 | if (match->flow.nw_proto == IPPROTO_TCP || |
7246 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 7247 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 7248 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
7249 | may_match |= MAY_TP_ADDR; |
7250 | } | |
81a76618 | 7251 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 7252 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 7253 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
7254 | match->flow.nw_proto == IPPROTO_UDP || |
7255 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 7256 | may_match |= MAY_TP_ADDR; |
81a76618 | 7257 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 7258 | may_match |= MAY_TP_ADDR; |
81a76618 | 7259 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 7260 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 7261 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
7262 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
7263 | } | |
7264 | } | |
8087f5ff MM |
7265 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
7266 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 7267 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
7268 | } else if (eth_type_mpls(match->flow.dl_type)) { |
7269 | may_match = MAY_MPLS; | |
1c0b7503 | 7270 | } else { |
b459a924 BP |
7271 | may_match = 0; |
7272 | } | |
7273 | ||
7274 | /* Clear the fields that may not be matched. */ | |
81a76618 | 7275 | wc = match->wc; |
b459a924 | 7276 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 7277 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
7278 | } |
7279 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 7280 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
7281 | } |
7282 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 7283 | wc.masks.nw_proto = 0; |
b459a924 | 7284 | } |
9e44d715 | 7285 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
7286 | wc.masks.nw_tos = 0; |
7287 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
7288 | } |
7289 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 7290 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
7291 | } |
7292 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 7293 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 7294 | } |
d78477ec | 7295 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
7296 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
7297 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
7298 | } |
7299 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 7300 | wc.masks.nd_target = in6addr_any; |
b459a924 | 7301 | } |
b02475c5 | 7302 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 7303 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 7304 | } |
b459a924 BP |
7305 | |
7306 | /* Log any changes. */ | |
81a76618 | 7307 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 7308 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 7309 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 7310 | |
81a76618 BP |
7311 | match->wc = wc; |
7312 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
7313 | |
7314 | if (log) { | |
81a76618 | 7315 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
7316 | VLOG_INFO("normalization changed ofp_match, details:"); |
7317 | VLOG_INFO(" pre: %s", pre); | |
7318 | VLOG_INFO("post: %s", post); | |
7319 | free(pre); | |
7320 | free(post); | |
7321 | } | |
fa37b408 | 7322 | } |
3f09c339 | 7323 | } |
26c112c2 | 7324 | |
81a76618 | 7325 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
7326 | * |
7327 | * 1. If the type of level N is known, then only the valid fields for that | |
7328 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 7329 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 7330 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 7331 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7332 | * IPv4 flow. |
7333 | * | |
7334 | * 2. If the type of level N is not known (or not understood by Open | |
7335 | * vSwitch), then no fields at all for that level may be specified. For | |
7336 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 7337 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7338 | * SCTP flow. |
7339 | * | |
81a76618 | 7340 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
7341 | * message. */ |
7342 | void | |
81a76618 | 7343 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 7344 | { |
81a76618 | 7345 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
7346 | } |
7347 | ||
81a76618 BP |
7348 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
7349 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
7350 | * sense for use on flows received from elsewhere (so that a bug in the program |
7351 | * that sent them can be reported and corrected). */ | |
7352 | void | |
81a76618 | 7353 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 7354 | { |
81a76618 | 7355 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
7356 | } |
7357 | ||
4a48cdfb BP |
7358 | static size_t |
7359 | parse_value(const char *s, const char *delimiters) | |
7360 | { | |
7361 | size_t n = 0; | |
7362 | ||
7363 | /* Iterate until we reach a delimiter. | |
7364 | * | |
7365 | * strchr(s, '\0') returns s+strlen(s), so this test handles the null | |
7366 | * terminator at the end of 's'. */ | |
7367 | while (!strchr(delimiters, s[n])) { | |
7368 | if (s[n] == '(') { | |
7369 | int level = 0; | |
7370 | do { | |
7371 | switch (s[n]) { | |
7372 | case '\0': | |
7373 | return n; | |
7374 | case '(': | |
7375 | level++; | |
7376 | break; | |
7377 | case ')': | |
7378 | level--; | |
7379 | break; | |
7380 | } | |
7381 | n++; | |
7382 | } while (level > 0); | |
7383 | } else { | |
7384 | n++; | |
7385 | } | |
7386 | } | |
7387 | return n; | |
7388 | } | |
7389 | ||
0ff22822 BP |
7390 | /* Parses a key or a key-value pair from '*stringp'. |
7391 | * | |
7392 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
7393 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
7394 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
7395 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
7396 | * terminators. Returns true. | |
7397 | * | |
7398 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
7399 | * NULL and returns false. */ | |
7400 | bool | |
7401 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
7402 | { | |
4a48cdfb BP |
7403 | /* Skip white space and delimiters. If that brings us to the end of the |
7404 | * input string, we are done and there are no more key-value pairs. */ | |
7405 | *stringp += strspn(*stringp, ", \t\r\n"); | |
7406 | if (**stringp == '\0') { | |
0ff22822 BP |
7407 | *keyp = *valuep = NULL; |
7408 | return false; | |
7409 | } | |
7410 | ||
4a48cdfb BP |
7411 | /* Extract the key and the delimiter that ends the key-value pair or begins |
7412 | * the value. Advance the input position past the key and delimiter. */ | |
7413 | char *key = *stringp; | |
7414 | size_t key_len = strcspn(key, ":=(, \t\r\n"); | |
7415 | char key_delim = key[key_len]; | |
7416 | key[key_len] = '\0'; | |
7417 | *stringp += key_len + (key_delim != '\0'); | |
0ff22822 | 7418 | |
4a48cdfb BP |
7419 | /* Figure out what delimiter ends the value: |
7420 | * | |
7421 | * - If key_delim is ":" or "=", the value extends until white space | |
7422 | * or a comma. | |
7423 | * | |
7424 | * - If key_delim is "(", the value extends until ")". | |
7425 | * | |
7426 | * If there is no value, we are done. */ | |
7427 | const char *value_delims; | |
7428 | if (key_delim == ':' || key_delim == '=') { | |
7429 | value_delims = ", \t\r\n"; | |
7430 | } else if (key_delim == '(') { | |
7431 | value_delims = ")"; | |
0ff22822 | 7432 | } else { |
4a48cdfb BP |
7433 | *keyp = key; |
7434 | *valuep = key + key_len; /* Empty string. */ | |
7435 | return true; | |
0ff22822 | 7436 | } |
0ff22822 | 7437 | |
4a48cdfb BP |
7438 | /* Extract the value. Advance the input position past the value and |
7439 | * delimiter. */ | |
7440 | char *value = *stringp; | |
7441 | size_t value_len = parse_value(value, value_delims); | |
7442 | char value_delim = value[value_len]; | |
7443 | value[value_len] = '\0'; | |
7444 | *stringp += value_len + (value_delim != '\0'); | |
7445 | ||
0ff22822 BP |
7446 | *keyp = key; |
7447 | *valuep = value; | |
7448 | return true; | |
7449 | } | |
f8e4867e SH |
7450 | |
7451 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7452 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7453 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7454 | struct ofpbuf * | |
4e022ec0 | 7455 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7456 | { |
7457 | struct ofpbuf *request; | |
7458 | ||
7459 | switch (ofp_version) { | |
7460 | case OFP10_VERSION: { | |
7461 | struct ofp10_port_stats_request *req; | |
7462 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7463 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7464 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7465 | break; |
7466 | } | |
7467 | case OFP11_VERSION: | |
2e1ae200 | 7468 | case OFP12_VERSION: |
c37c0382 | 7469 | case OFP13_VERSION: |
42dccab5 | 7470 | case OFP14_VERSION: |
b79d45a1 BP |
7471 | case OFP15_VERSION: |
7472 | case OFP16_VERSION: { | |
f8e4867e SH |
7473 | struct ofp11_port_stats_request *req; |
7474 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7475 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7476 | req->port_no = ofputil_port_to_ofp11(port); | |
7477 | break; | |
7478 | } | |
7479 | default: | |
428b2edd | 7480 | OVS_NOT_REACHED(); |
f8e4867e SH |
7481 | } |
7482 | ||
7483 | return request; | |
7484 | } | |
7485 | ||
7486 | static void | |
7487 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7488 | struct ofp10_port_stats *ps10) | |
7489 | { | |
4e022ec0 | 7490 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7491 | memset(ps10->pad, 0, sizeof ps10->pad); |
7492 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7493 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7494 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7495 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7496 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7497 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7498 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7499 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7500 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7501 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7502 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7503 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7504 | } | |
7505 | ||
7506 | static void | |
7507 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7508 | struct ofp11_port_stats *ps11) | |
7509 | { | |
7510 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7511 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7512 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7513 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7514 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7515 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7516 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7517 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7518 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7519 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7520 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7521 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7522 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7523 | ps11->collisions = htonll(ops->stats.collisions); | |
7524 | } | |
7525 | ||
2e1ae200 JR |
7526 | static void |
7527 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7528 | struct ofp13_port_stats *ps13) | |
7529 | { | |
7530 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7531 | ps13->duration_sec = htonl(ops->duration_sec); |
7532 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7533 | } |
7534 | ||
5469537b BP |
7535 | static void |
7536 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7537 | struct ovs_list *replies) |
5469537b BP |
7538 | { |
7539 | struct ofp14_port_stats_prop_ethernet *eth; | |
d6e3feb5 | 7540 | struct intel_port_stats_rfc2819 *stats_rfc2819; |
5469537b BP |
7541 | struct ofp14_port_stats *ps14; |
7542 | struct ofpbuf *reply; | |
7543 | ||
d6e3feb5 | 7544 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth + |
7545 | sizeof *stats_rfc2819); | |
5469537b BP |
7546 | |
7547 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
d6e3feb5 | 7548 | ps14->length = htons(sizeof *ps14 + sizeof *eth + |
7549 | sizeof *stats_rfc2819); | |
5469537b BP |
7550 | memset(ps14->pad, 0, sizeof ps14->pad); |
7551 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7552 | ps14->duration_sec = htonl(ops->duration_sec); | |
7553 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7554 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7555 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7556 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7557 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7558 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7559 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7560 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7561 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7562 | ||
303721ee | 7563 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7564 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7565 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7566 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7567 | eth->collisions = htonll(ops->stats.collisions); | |
d6e3feb5 | 7568 | |
7569 | uint64_t prop_type = OFPPROP_EXP(INTEL_VENDOR_ID, | |
7570 | INTEL_PORT_STATS_RFC2819); | |
7571 | ||
7572 | stats_rfc2819 = ofpprop_put_zeros(reply, prop_type, | |
7573 | sizeof *stats_rfc2819); | |
7574 | ||
7575 | memset(stats_rfc2819->pad, 0, sizeof stats_rfc2819->pad); | |
7576 | stats_rfc2819->rx_1_to_64_packets = htonll(ops->stats.rx_1_to_64_packets); | |
7577 | stats_rfc2819->rx_65_to_127_packets = | |
7578 | htonll(ops->stats.rx_65_to_127_packets); | |
7579 | stats_rfc2819->rx_128_to_255_packets = | |
7580 | htonll(ops->stats.rx_128_to_255_packets); | |
7581 | stats_rfc2819->rx_256_to_511_packets = | |
7582 | htonll(ops->stats.rx_256_to_511_packets); | |
7583 | stats_rfc2819->rx_512_to_1023_packets = | |
7584 | htonll(ops->stats.rx_512_to_1023_packets); | |
7585 | stats_rfc2819->rx_1024_to_1522_packets = | |
7586 | htonll(ops->stats.rx_1024_to_1522_packets); | |
7587 | stats_rfc2819->rx_1523_to_max_packets = | |
7588 | htonll(ops->stats.rx_1523_to_max_packets); | |
7589 | ||
7590 | stats_rfc2819->tx_1_to_64_packets = htonll(ops->stats.tx_1_to_64_packets); | |
7591 | stats_rfc2819->tx_65_to_127_packets = | |
7592 | htonll(ops->stats.tx_65_to_127_packets); | |
7593 | stats_rfc2819->tx_128_to_255_packets = | |
7594 | htonll(ops->stats.tx_128_to_255_packets); | |
7595 | stats_rfc2819->tx_256_to_511_packets = | |
7596 | htonll(ops->stats.tx_256_to_511_packets); | |
7597 | stats_rfc2819->tx_512_to_1023_packets = | |
7598 | htonll(ops->stats.tx_512_to_1023_packets); | |
7599 | stats_rfc2819->tx_1024_to_1522_packets = | |
7600 | htonll(ops->stats.tx_1024_to_1522_packets); | |
7601 | stats_rfc2819->tx_1523_to_max_packets = | |
7602 | htonll(ops->stats.tx_1523_to_max_packets); | |
7603 | ||
7604 | stats_rfc2819->tx_multicast_packets = | |
7605 | htonll(ops->stats.tx_multicast_packets); | |
7606 | stats_rfc2819->rx_broadcast_packets = | |
7607 | htonll(ops->stats.rx_broadcast_packets); | |
7608 | stats_rfc2819->tx_broadcast_packets = | |
7609 | htonll(ops->stats.tx_broadcast_packets); | |
7610 | stats_rfc2819->rx_undersized_errors = | |
7611 | htonll(ops->stats.rx_undersized_errors); | |
7612 | stats_rfc2819->rx_oversize_errors = | |
7613 | htonll(ops->stats.rx_oversize_errors); | |
7614 | stats_rfc2819->rx_fragmented_errors = | |
7615 | htonll(ops->stats.rx_fragmented_errors); | |
7616 | stats_rfc2819->rx_jabber_errors = | |
7617 | htonll(ops->stats.rx_jabber_errors); | |
5469537b | 7618 | } |
2e1ae200 | 7619 | |
ad4c35fe | 7620 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7621 | void |
ca6ba700 | 7622 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7623 | const struct ofputil_port_stats *ops) |
7624 | { | |
e28ac5cf | 7625 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7626 | case OFP13_VERSION: { |
7627 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7628 | ofputil_port_stats_to_ofp13(ops, reply); | |
7629 | break; | |
7630 | } | |
f8e4867e SH |
7631 | case OFP12_VERSION: |
7632 | case OFP11_VERSION: { | |
7633 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7634 | ofputil_port_stats_to_ofp11(ops, reply); | |
7635 | break; | |
7636 | } | |
7637 | ||
7638 | case OFP10_VERSION: { | |
7639 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7640 | ofputil_port_stats_to_ofp10(ops, reply); | |
7641 | break; | |
7642 | } | |
7643 | ||
c37c0382 | 7644 | case OFP14_VERSION: |
42dccab5 | 7645 | case OFP15_VERSION: |
b79d45a1 | 7646 | case OFP16_VERSION: |
5469537b | 7647 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7648 | break; |
7649 | ||
f8e4867e | 7650 | default: |
428b2edd | 7651 | OVS_NOT_REACHED(); |
f8e4867e SH |
7652 | } |
7653 | } | |
7654 | ||
7655 | static enum ofperr | |
7656 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7657 | const struct ofp10_port_stats *ps10) | |
7658 | { | |
f8e4867e | 7659 | |
4e022ec0 | 7660 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7661 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7662 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7663 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7664 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7665 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7666 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7667 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7668 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7669 | ops->stats.rx_frame_errors = | |
7670 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7671 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7672 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7673 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7674 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7675 | |
7676 | return 0; | |
7677 | } | |
7678 | ||
7679 | static enum ofperr | |
7680 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7681 | const struct ofp11_port_stats *ps11) | |
7682 | { | |
7683 | enum ofperr error; | |
7684 | ||
f8e4867e SH |
7685 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); |
7686 | if (error) { | |
7687 | return error; | |
7688 | } | |
7689 | ||
7690 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7691 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7692 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7693 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7694 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7695 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7696 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7697 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7698 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7699 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7700 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7701 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7702 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7703 | |
7704 | return 0; | |
7705 | } | |
7706 | ||
2e1ae200 JR |
7707 | static enum ofperr |
7708 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7709 | const struct ofp13_port_stats *ps13) | |
7710 | { | |
65e0be10 | 7711 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7712 | if (!error) { |
65e0be10 BP |
7713 | ops->duration_sec = ntohl(ps13->duration_sec); |
7714 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7715 | } |
2e1ae200 JR |
7716 | return error; |
7717 | } | |
7718 | ||
5469537b BP |
7719 | static enum ofperr |
7720 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7721 | struct ofputil_port_stats *ops) | |
be0c30df | 7722 | { |
6fd6ed71 | 7723 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7724 | |
6fd6ed71 | 7725 | if (payload->size != sizeof *eth) { |
5469537b BP |
7726 | return OFPERR_OFPBPC_BAD_LEN; |
7727 | } | |
7728 | ||
7729 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7730 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7731 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7732 | ops->stats.collisions = ntohll(eth->collisions); | |
7733 | ||
7734 | return 0; | |
7735 | } | |
7736 | ||
d6e3feb5 | 7737 | static enum ofperr |
7738 | parse_intel_port_stats_rfc2819_property(const struct ofpbuf *payload, | |
7739 | struct ofputil_port_stats *ops) | |
7740 | { | |
7741 | const struct intel_port_stats_rfc2819 *rfc2819 = payload->data; | |
7742 | ||
7743 | if (payload->size != sizeof *rfc2819) { | |
7744 | return OFPERR_OFPBPC_BAD_LEN; | |
7745 | } | |
7746 | ops->stats.rx_1_to_64_packets = ntohll(rfc2819->rx_1_to_64_packets); | |
7747 | ops->stats.rx_65_to_127_packets = ntohll(rfc2819->rx_65_to_127_packets); | |
7748 | ops->stats.rx_128_to_255_packets = ntohll(rfc2819->rx_128_to_255_packets); | |
7749 | ops->stats.rx_256_to_511_packets = ntohll(rfc2819->rx_256_to_511_packets); | |
7750 | ops->stats.rx_512_to_1023_packets = | |
7751 | ntohll(rfc2819->rx_512_to_1023_packets); | |
7752 | ops->stats.rx_1024_to_1522_packets = | |
7753 | ntohll(rfc2819->rx_1024_to_1522_packets); | |
7754 | ops->stats.rx_1523_to_max_packets = | |
7755 | ntohll(rfc2819->rx_1523_to_max_packets); | |
7756 | ||
7757 | ops->stats.tx_1_to_64_packets = ntohll(rfc2819->tx_1_to_64_packets); | |
7758 | ops->stats.tx_65_to_127_packets = ntohll(rfc2819->tx_65_to_127_packets); | |
7759 | ops->stats.tx_128_to_255_packets = ntohll(rfc2819->tx_128_to_255_packets); | |
7760 | ops->stats.tx_256_to_511_packets = ntohll(rfc2819->tx_256_to_511_packets); | |
7761 | ops->stats.tx_512_to_1023_packets = | |
7762 | ntohll(rfc2819->tx_512_to_1023_packets); | |
7763 | ops->stats.tx_1024_to_1522_packets = | |
7764 | ntohll(rfc2819->tx_1024_to_1522_packets); | |
7765 | ops->stats.tx_1523_to_max_packets = | |
7766 | ntohll(rfc2819->tx_1523_to_max_packets); | |
7767 | ||
7768 | ops->stats.tx_multicast_packets = ntohll(rfc2819->tx_multicast_packets); | |
7769 | ops->stats.rx_broadcast_packets = ntohll(rfc2819->rx_broadcast_packets); | |
7770 | ops->stats.tx_broadcast_packets = ntohll(rfc2819->tx_broadcast_packets); | |
7771 | ops->stats.rx_undersized_errors = ntohll(rfc2819->rx_undersized_errors); | |
7772 | ||
7773 | ops->stats.rx_oversize_errors = ntohll(rfc2819->rx_oversize_errors); | |
7774 | ops->stats.rx_fragmented_errors = ntohll(rfc2819->rx_fragmented_errors); | |
7775 | ops->stats.rx_jabber_errors = ntohll(rfc2819->rx_jabber_errors); | |
7776 | ||
7777 | return 0; | |
7778 | } | |
7779 | ||
7780 | static enum ofperr | |
7781 | parse_intel_port_stats_property(const struct ofpbuf *payload, | |
7782 | uint32_t exp_type, | |
7783 | struct ofputil_port_stats *ops) | |
7784 | { | |
7785 | enum ofperr error; | |
7786 | ||
7787 | switch (exp_type) { | |
7788 | case INTEL_PORT_STATS_RFC2819: | |
7789 | error = parse_intel_port_stats_rfc2819_property(payload, ops); | |
7790 | break; | |
7791 | default: | |
7792 | error = OFPERR_OFPBPC_BAD_EXP_TYPE; | |
7793 | break; | |
7794 | } | |
7795 | ||
7796 | return error; | |
7797 | } | |
7798 | ||
5469537b BP |
7799 | static enum ofperr |
7800 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7801 | struct ofpbuf *msg) | |
7802 | { | |
0a2869d5 | 7803 | const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14); |
5469537b BP |
7804 | if (!ps14) { |
7805 | return OFPERR_OFPBRC_BAD_LEN; | |
7806 | } | |
7807 | ||
0a2869d5 | 7808 | size_t len = ntohs(ps14->length); |
6fd6ed71 | 7809 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7810 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7811 | } |
5469537b | 7812 | len -= sizeof *ps14; |
5469537b | 7813 | |
0a2869d5 | 7814 | enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); |
5469537b BP |
7815 | if (error) { |
7816 | return error; | |
7817 | } | |
7818 | ||
7819 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7820 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7821 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7822 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7823 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7824 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7825 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7826 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7827 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7828 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
d6e3feb5 | 7829 | |
5469537b | 7830 | |
0a2869d5 BP |
7831 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
7832 | len); | |
6fd6ed71 | 7833 | while (properties.size > 0) { |
5469537b BP |
7834 | struct ofpbuf payload; |
7835 | enum ofperr error; | |
d6e3feb5 | 7836 | uint64_t type = 0; |
5469537b | 7837 | |
c5562271 | 7838 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
7839 | if (error) { |
7840 | return error; | |
7841 | } | |
5469537b BP |
7842 | switch (type) { |
7843 | case OFPPSPT14_ETHERNET: | |
7844 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7845 | break; | |
d6e3feb5 | 7846 | case OFPPROP_EXP(INTEL_VENDOR_ID, INTEL_PORT_STATS_RFC2819): |
7847 | error = parse_intel_port_stats_property(&payload, | |
7848 | INTEL_PORT_STATS_RFC2819, | |
7849 | ops); | |
7850 | break; | |
5469537b | 7851 | default: |
34a543e3 | 7852 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
7853 | break; |
7854 | } | |
7855 | ||
7856 | if (error) { | |
7857 | return error; | |
7858 | } | |
7859 | } | |
7860 | ||
7861 | return 0; | |
be0c30df | 7862 | } |
2e1ae200 | 7863 | |
f8e4867e SH |
7864 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7865 | * message 'oh'. */ | |
7866 | size_t | |
7867 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7868 | { | |
0a2869d5 | 7869 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
f8e4867e | 7870 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
7871 | |
7872 | for (size_t n = 0; ; n++) { | |
7873 | struct ofputil_port_stats ps; | |
7874 | if (ofputil_decode_port_stats(&ps, &b)) { | |
7875 | return n; | |
7876 | } | |
5469537b | 7877 | } |
f8e4867e SH |
7878 | } |
7879 | ||
7880 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7881 | * ofputil_port_stats in 'ps'. | |
7882 | * | |
7883 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7884 | * message. Calling this function multiple times for a single 'msg' iterates | |
7885 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7886 | * null and not modify them between calls. | |
7887 | * | |
7888 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7889 | * otherwise a positive errno value. */ | |
7890 | int | |
7891 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7892 | { | |
7893 | enum ofperr error; | |
7894 | enum ofpraw raw; | |
7895 | ||
d6e3feb5 | 7896 | memset(&(ps->stats), 0xFF, sizeof (ps->stats)); |
7897 | ||
6fd6ed71 | 7898 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7899 | : ofpraw_pull(&raw, msg)); |
7900 | if (error) { | |
7901 | return error; | |
7902 | } | |
7903 | ||
6fd6ed71 | 7904 | if (!msg->size) { |
f8e4867e | 7905 | return EOF; |
5469537b BP |
7906 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7907 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7908 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7909 | const struct ofp13_port_stats *ps13; | |
2e1ae200 JR |
7910 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); |
7911 | if (!ps13) { | |
7912 | goto bad_len; | |
7913 | } | |
7914 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7915 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7916 | const struct ofp11_port_stats *ps11; | |
7917 | ||
7918 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7919 | if (!ps11) { | |
2e1ae200 | 7920 | goto bad_len; |
f8e4867e SH |
7921 | } |
7922 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7923 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7924 | const struct ofp10_port_stats *ps10; | |
7925 | ||
7926 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7927 | if (!ps10) { | |
2e1ae200 | 7928 | goto bad_len; |
f8e4867e SH |
7929 | } |
7930 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7931 | } else { | |
428b2edd | 7932 | OVS_NOT_REACHED(); |
f8e4867e SH |
7933 | } |
7934 | ||
2e1ae200 | 7935 | bad_len: |
437d0d22 | 7936 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7937 | "bytes at end", msg->size); |
2e1ae200 | 7938 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7939 | } |
7940 | ||
7941 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7942 | * port number and stores the latter in '*ofp10_port'. | |
7943 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7944 | enum ofperr | |
7945 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7946 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7947 | { |
7948 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 7949 | case OFP16_VERSION: |
42dccab5 | 7950 | case OFP15_VERSION: |
5469537b | 7951 | case OFP14_VERSION: |
2e1ae200 | 7952 | case OFP13_VERSION: |
f8e4867e SH |
7953 | case OFP12_VERSION: |
7954 | case OFP11_VERSION: { | |
7955 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7956 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7957 | } | |
7958 | ||
7959 | case OFP10_VERSION: { | |
7960 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7961 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7962 | return 0; |
7963 | } | |
7964 | ||
7965 | default: | |
428b2edd | 7966 | OVS_NOT_REACHED(); |
f8e4867e SH |
7967 | } |
7968 | } | |
64626975 | 7969 | |
fb8f22c1 BY |
7970 | static void |
7971 | ofputil_ipfix_stats_to_reply(const struct ofputil_ipfix_stats *ois, | |
7972 | struct nx_ipfix_stats_reply *reply) | |
7973 | { | |
7974 | reply->collector_set_id = htonl(ois->collector_set_id); | |
7975 | reply->total_flows = htonll(ois->total_flows); | |
7976 | reply->current_flows = htonll(ois->current_flows); | |
7977 | reply->pkts = htonll(ois->pkts); | |
7978 | reply->ipv4_pkts = htonll(ois->ipv4_pkts); | |
7979 | reply->ipv6_pkts = htonll(ois->ipv6_pkts); | |
7980 | reply->error_pkts = htonll(ois->error_pkts); | |
7981 | reply->ipv4_error_pkts = htonll(ois->ipv4_error_pkts); | |
7982 | reply->ipv6_error_pkts = htonll(ois->ipv6_error_pkts); | |
7983 | reply->tx_pkts = htonll(ois->tx_pkts); | |
7984 | reply->tx_errors = htonll(ois->tx_errors); | |
05e81316 | 7985 | memset(reply->pad, 0, sizeof reply->pad); |
fb8f22c1 BY |
7986 | } |
7987 | ||
7988 | /* Encode a ipfix stat for 'ois' and append it to 'replies'. */ | |
7989 | void | |
7990 | ofputil_append_ipfix_stat(struct ovs_list *replies, | |
7991 | const struct ofputil_ipfix_stats *ois) | |
7992 | { | |
7993 | struct nx_ipfix_stats_reply *reply = ofpmp_append(replies, sizeof *reply); | |
7994 | ofputil_ipfix_stats_to_reply(ois, reply); | |
7995 | } | |
7996 | ||
7997 | static enum ofperr | |
7998 | ofputil_ipfix_stats_from_nx(struct ofputil_ipfix_stats *is, | |
7999 | const struct nx_ipfix_stats_reply *reply) | |
8000 | { | |
8001 | is->collector_set_id = ntohl(reply->collector_set_id); | |
8002 | is->total_flows = ntohll(reply->total_flows); | |
8003 | is->current_flows = ntohll(reply->current_flows); | |
8004 | is->pkts = ntohll(reply->pkts); | |
8005 | is->ipv4_pkts = ntohll(reply->ipv4_pkts); | |
8006 | is->ipv6_pkts = ntohll(reply->ipv6_pkts); | |
8007 | is->error_pkts = ntohll(reply->error_pkts); | |
8008 | is->ipv4_error_pkts = ntohll(reply->ipv4_error_pkts); | |
8009 | is->ipv6_error_pkts = ntohll(reply->ipv6_error_pkts); | |
8010 | is->tx_pkts = ntohll(reply->tx_pkts); | |
8011 | is->tx_errors = ntohll(reply->tx_errors); | |
8012 | ||
8013 | return 0; | |
8014 | } | |
8015 | ||
8016 | int | |
8017 | ofputil_pull_ipfix_stats(struct ofputil_ipfix_stats *is, struct ofpbuf *msg) | |
8018 | { | |
8019 | enum ofperr error; | |
8020 | enum ofpraw raw; | |
8021 | ||
8022 | memset(is, 0xFF, sizeof (*is)); | |
8023 | ||
8024 | error = (msg->header ? ofpraw_decode(&raw, msg->header) | |
8025 | : ofpraw_pull(&raw, msg)); | |
8026 | if (error) { | |
8027 | return error; | |
8028 | } | |
8029 | ||
8030 | if (!msg->size) { | |
8031 | return EOF; | |
8032 | } else if (raw == OFPRAW_NXST_IPFIX_BRIDGE_REPLY || | |
8033 | raw == OFPRAW_NXST_IPFIX_FLOW_REPLY) { | |
8034 | struct nx_ipfix_stats_reply *reply; | |
8035 | ||
8036 | reply = ofpbuf_try_pull(msg, sizeof *reply); | |
8037 | return ofputil_ipfix_stats_from_nx(is, reply); | |
8038 | } else { | |
8039 | OVS_NOT_REACHED(); | |
8040 | } | |
8041 | } | |
8042 | ||
8043 | ||
8044 | /* Returns the number of ipfix stats elements in | |
8045 | * OFPTYPE_IPFIX_BRIDGE_STATS_REPLY or OFPTYPE_IPFIX_FLOW_STATS_REPLY | |
8046 | * message 'oh'. */ | |
8047 | size_t | |
8048 | ofputil_count_ipfix_stats(const struct ofp_header *oh) | |
8049 | { | |
8050 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
8051 | ofpraw_pull_assert(&b); | |
8052 | ||
8053 | return b.size / sizeof(struct ofputil_ipfix_stats); | |
8054 | } | |
8055 | ||
7395c052 NZ |
8056 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
8057 | void | |
ca6ba700 | 8058 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 8059 | { |
5f03c983 | 8060 | struct ofputil_bucket *bucket; |
7395c052 | 8061 | |
5f03c983 | 8062 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
8063 | free(bucket->ofpacts); |
8064 | free(bucket); | |
8065 | } | |
8066 | } | |
8067 | ||
103b4866 SH |
8068 | /* Clones 'bucket' and its ofpacts data */ |
8069 | static struct ofputil_bucket * | |
8070 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
8071 | { | |
8072 | struct ofputil_bucket *new; | |
8073 | ||
8074 | new = xmemdup(bucket, sizeof *bucket); | |
8075 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
8076 | ||
8077 | return new; | |
8078 | } | |
8079 | ||
8080 | /* Clones each of the buckets in the list 'src' appending them | |
8081 | * in turn to 'dest' which should be an initialised list. | |
8082 | * An exception is that if the pointer value of a bucket in 'src' | |
8083 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
8084 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
8085 | * be cloned and appended to 'dest'. */ | |
8086 | void | |
ca6ba700 | 8087 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
8088 | const struct ofputil_bucket *skip) |
8089 | { | |
8090 | struct ofputil_bucket *bucket; | |
8091 | ||
8092 | LIST_FOR_EACH (bucket, list_node, src) { | |
8093 | struct ofputil_bucket *new_bucket; | |
8094 | ||
8095 | if (bucket == skip) { | |
8096 | continue; | |
8097 | } | |
8098 | ||
8099 | new_bucket = ofputil_bucket_clone_data(bucket); | |
417e7e66 | 8100 | ovs_list_push_back(dest, &new_bucket->list_node); |
103b4866 SH |
8101 | } |
8102 | } | |
8103 | ||
8104 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
8105 | * Returns the first bucket found or NULL if no buckets are found. */ | |
8106 | struct ofputil_bucket * | |
ca6ba700 | 8107 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
8108 | { |
8109 | struct ofputil_bucket *bucket; | |
8110 | ||
8111 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
8112 | return NULL; | |
8113 | } | |
8114 | ||
8115 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
8116 | if (bucket->bucket_id == bucket_id) { | |
8117 | return bucket; | |
8118 | } | |
8119 | } | |
8120 | ||
8121 | return NULL; | |
8122 | } | |
8123 | ||
8124 | /* Returns true if more than one bucket in the list 'buckets' | |
8125 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 8126 | bool |
ca6ba700 | 8127 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
8128 | { |
8129 | struct ofputil_bucket *i, *j; | |
8130 | ||
8131 | LIST_FOR_EACH (i, list_node, buckets) { | |
8132 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
8133 | if (i == j) { | |
8134 | break; | |
8135 | } | |
8136 | if (i->bucket_id == j->bucket_id) { | |
8137 | return true; | |
8138 | } | |
8139 | } | |
8140 | } | |
8141 | ||
8142 | return false; | |
8143 | } | |
8144 | ||
103b4866 SH |
8145 | /* Returns the bucket at the front of the list 'buckets'. |
8146 | * Undefined if 'buckets is empty. */ | |
8147 | struct ofputil_bucket * | |
ca6ba700 | 8148 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
8149 | { |
8150 | static struct ofputil_bucket *bucket; | |
8151 | ||
417e7e66 | 8152 | ASSIGN_CONTAINER(bucket, ovs_list_front(buckets), list_node); |
103b4866 SH |
8153 | |
8154 | return bucket; | |
8155 | } | |
8156 | ||
8157 | /* Returns the bucket at the back of the list 'buckets'. | |
8158 | * Undefined if 'buckets is empty. */ | |
8159 | struct ofputil_bucket * | |
ca6ba700 | 8160 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
8161 | { |
8162 | static struct ofputil_bucket *bucket; | |
8163 | ||
417e7e66 | 8164 | ASSIGN_CONTAINER(bucket, ovs_list_back(buckets), list_node); |
103b4866 SH |
8165 | |
8166 | return bucket; | |
8167 | } | |
8168 | ||
7395c052 NZ |
8169 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
8170 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
8171 | * for all groups.) | |
8172 | * | |
8173 | * Group statistics include packet and byte counts for each group. */ | |
8174 | struct ofpbuf * | |
8175 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
8176 | uint32_t group_id) | |
8177 | { | |
8178 | struct ofpbuf *request; | |
8179 | ||
8180 | switch (ofp_version) { | |
8181 | case OFP10_VERSION: | |
8182 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
8183 | "(\'-O OpenFlow11\')"); | |
8184 | case OFP11_VERSION: | |
8185 | case OFP12_VERSION: | |
c37c0382 | 8186 | case OFP13_VERSION: |
42dccab5 | 8187 | case OFP14_VERSION: |
b79d45a1 BP |
8188 | case OFP15_VERSION: |
8189 | case OFP16_VERSION: { | |
7395c052 NZ |
8190 | struct ofp11_group_stats_request *req; |
8191 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
8192 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8193 | req->group_id = htonl(group_id); | |
8194 | break; | |
8195 | } | |
8196 | default: | |
428b2edd | 8197 | OVS_NOT_REACHED(); |
7395c052 NZ |
8198 | } |
8199 | ||
8200 | return request; | |
8201 | } | |
8202 | ||
bc65c25a SH |
8203 | void |
8204 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
8205 | { | |
8206 | ofputil_bucket_list_destroy(&gd->buckets); | |
e8dba719 | 8207 | ofputil_group_properties_destroy(&gd->props); |
bc65c25a SH |
8208 | } |
8209 | ||
19187a71 BP |
8210 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
8211 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
8212 | * requested. */ | |
8213 | uint32_t | |
8214 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
8215 | { | |
0a2869d5 BP |
8216 | struct ofpbuf request = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
8217 | enum ofpraw raw = ofpraw_pull_assert(&request); | |
19187a71 BP |
8218 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { |
8219 | return OFPG_ALL; | |
8220 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
8221 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
8222 | return ntohl(*group_id); | |
8223 | } else { | |
8224 | OVS_NOT_REACHED(); | |
8225 | } | |
8226 | } | |
8227 | ||
7395c052 | 8228 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
8229 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
8230 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
8231 | * groups). | |
7395c052 NZ |
8232 | * |
8233 | * Group descriptions include the bucket and action configuration for each | |
8234 | * group. */ | |
8235 | struct ofpbuf * | |
19187a71 BP |
8236 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
8237 | uint32_t group_id) | |
7395c052 NZ |
8238 | { |
8239 | struct ofpbuf *request; | |
8240 | ||
8241 | switch (ofp_version) { | |
8242 | case OFP10_VERSION: | |
8243 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
8244 | "(\'-O OpenFlow11\')"); | |
8245 | case OFP11_VERSION: | |
8246 | case OFP12_VERSION: | |
c37c0382 AC |
8247 | case OFP13_VERSION: |
8248 | case OFP14_VERSION: | |
19187a71 BP |
8249 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
8250 | ofp_version, 0); | |
8251 | break; | |
b79d45a1 BP |
8252 | case OFP15_VERSION: |
8253 | case OFP16_VERSION: { | |
d4d3f33e | 8254 | struct ofp15_group_desc_request *req; |
19187a71 BP |
8255 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
8256 | ofp_version, 0); | |
d4d3f33e MT |
8257 | req = ofpbuf_put_zeros(request, sizeof *req); |
8258 | req->group_id = htonl(group_id); | |
7395c052 | 8259 | break; |
d4d3f33e | 8260 | } |
7395c052 | 8261 | default: |
428b2edd | 8262 | OVS_NOT_REACHED(); |
7395c052 NZ |
8263 | } |
8264 | ||
8265 | return request; | |
8266 | } | |
8267 | ||
dcbe78ad | 8268 | static void |
63759e71 AZ |
8269 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
8270 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8271 | { |
7395c052 NZ |
8272 | int i; |
8273 | ||
dcbe78ad AZ |
8274 | for (i = 0; i < gs->n_buckets; i++) { |
8275 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
8276 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 8277 | } |
7395c052 NZ |
8278 | } |
8279 | ||
8280 | static void | |
dcbe78ad | 8281 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
8282 | struct ofp11_group_stats *gs11, size_t length, |
8283 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8284 | { |
63759e71 AZ |
8285 | memset(gs11, 0, sizeof *gs11); |
8286 | gs11->length = htons(length); | |
8287 | gs11->group_id = htonl(gs->group_id); | |
8288 | gs11->ref_count = htonl(gs->ref_count); | |
8289 | gs11->packet_count = htonll(gs->packet_count); | |
8290 | gs11->byte_count = htonll(gs->byte_count); | |
8291 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 8292 | } |
7395c052 | 8293 | |
dcbe78ad AZ |
8294 | static void |
8295 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
8296 | struct ofp13_group_stats *gs13, size_t length, |
8297 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 8298 | { |
63759e71 | 8299 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
8300 | gs13->duration_sec = htonl(gs->duration_sec); |
8301 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 8302 | |
7395c052 NZ |
8303 | } |
8304 | ||
dcbe78ad | 8305 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
8306 | * replies already begun in 'replies' and appends it to the list. 'replies' |
8307 | * must have originally been initialized with ofpmp_init(). */ | |
8308 | void | |
ca6ba700 | 8309 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 8310 | const struct ofputil_group_stats *gs) |
7395c052 | 8311 | { |
63759e71 AZ |
8312 | size_t bucket_counter_size; |
8313 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 8314 | size_t length; |
7395c052 | 8315 | |
63759e71 AZ |
8316 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
8317 | ||
e28ac5cf | 8318 | switch (ofpmp_version(replies)) { |
7395c052 | 8319 | case OFP11_VERSION: |
dcbe78ad | 8320 | case OFP12_VERSION:{ |
63759e71 | 8321 | struct ofp11_group_stats *gs11; |
dcbe78ad | 8322 | |
63759e71 AZ |
8323 | length = sizeof *gs11 + bucket_counter_size; |
8324 | gs11 = ofpmp_append(replies, length); | |
8325 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
8326 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
8327 | break; |
8328 | } | |
7395c052 NZ |
8329 | |
8330 | case OFP13_VERSION: | |
42dccab5 | 8331 | case OFP14_VERSION: |
b79d45a1 BP |
8332 | case OFP15_VERSION: |
8333 | case OFP16_VERSION: { | |
63759e71 | 8334 | struct ofp13_group_stats *gs13; |
7395c052 | 8335 | |
63759e71 AZ |
8336 | length = sizeof *gs13 + bucket_counter_size; |
8337 | gs13 = ofpmp_append(replies, length); | |
8338 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
8339 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
8340 | break; |
8341 | } | |
c37c0382 | 8342 | |
7395c052 NZ |
8343 | case OFP10_VERSION: |
8344 | default: | |
428b2edd | 8345 | OVS_NOT_REACHED(); |
7395c052 NZ |
8346 | } |
8347 | } | |
7395c052 NZ |
8348 | /* Returns an OpenFlow group features request for OpenFlow version |
8349 | * 'ofp_version'. */ | |
8350 | struct ofpbuf * | |
8351 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
8352 | { | |
8353 | struct ofpbuf *request = NULL; | |
8354 | ||
8355 | switch (ofp_version) { | |
8356 | case OFP10_VERSION: | |
8357 | case OFP11_VERSION: | |
8358 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
8359 | "(\'-O OpenFlow12\')"); | |
8360 | case OFP12_VERSION: | |
c37c0382 AC |
8361 | case OFP13_VERSION: |
8362 | case OFP14_VERSION: | |
42dccab5 | 8363 | case OFP15_VERSION: |
b79d45a1 | 8364 | case OFP16_VERSION: |
7395c052 | 8365 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 8366 | ofp_version, 0); |
7395c052 | 8367 | break; |
7395c052 | 8368 | default: |
428b2edd | 8369 | OVS_NOT_REACHED(); |
7395c052 NZ |
8370 | } |
8371 | ||
8372 | return request; | |
8373 | } | |
8374 | ||
8375 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
8376 | * group features request 'request'. */ | |
8377 | struct ofpbuf * | |
8378 | ofputil_encode_group_features_reply( | |
8379 | const struct ofputil_group_features *features, | |
8380 | const struct ofp_header *request) | |
8381 | { | |
8382 | struct ofp12_group_features_stats *ogf; | |
8383 | struct ofpbuf *reply; | |
08d1e234 | 8384 | int i; |
7395c052 NZ |
8385 | |
8386 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
8387 | request->version, request->xid, 0); | |
8388 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
8389 | ogf->types = htonl(features->types); | |
8390 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
8391 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8392 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
8393 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
8394 | request->version); | |
8395 | } | |
7395c052 NZ |
8396 | |
8397 | return reply; | |
8398 | } | |
8399 | ||
8400 | /* Decodes group features reply 'oh' into 'features'. */ | |
8401 | void | |
8402 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
8403 | struct ofputil_group_features *features) | |
8404 | { | |
8405 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 8406 | int i; |
7395c052 NZ |
8407 | |
8408 | features->types = ntohl(ogf->types); | |
8409 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
8410 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8411 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
8412 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
8413 | ogf->actions[i], oh->version); | |
8414 | } | |
7395c052 NZ |
8415 | } |
8416 | ||
8417 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
8418 | * group ID and stores the latter in '*group_id'. | |
8419 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8420 | enum ofperr | |
8421 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
8422 | uint32_t *group_id) | |
8423 | { | |
8424 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
8425 | *group_id = ntohl(gsr11->group_id); | |
8426 | return 0; | |
8427 | } | |
8428 | ||
8429 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
8430 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
8431 | * caller to eventually free. | |
7395c052 NZ |
8432 | * |
8433 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
8434 | * Calling this function multiple times for a single 'msg' iterates through the | |
8435 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
8436 | * not modify them between calls. | |
8437 | * | |
8438 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8439 | * otherwise a positive errno value. */ | |
8440 | int | |
8441 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
8442 | struct ofputil_group_stats *gs) | |
8443 | { | |
8444 | struct ofp11_bucket_counter *obc; | |
8445 | struct ofp11_group_stats *ogs11; | |
8446 | enum ofpraw raw; | |
8447 | enum ofperr error; | |
8448 | size_t base_len; | |
8449 | size_t length; | |
8450 | size_t i; | |
8451 | ||
646b2a9c | 8452 | gs->bucket_stats = NULL; |
6fd6ed71 | 8453 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
8454 | : ofpraw_pull(&raw, msg)); |
8455 | if (error) { | |
8456 | return error; | |
8457 | } | |
8458 | ||
6fd6ed71 | 8459 | if (!msg->size) { |
7395c052 NZ |
8460 | return EOF; |
8461 | } | |
8462 | ||
8463 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
8464 | base_len = sizeof *ogs11; | |
8465 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
8466 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
8467 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
8468 | struct ofp13_group_stats *ogs13; | |
8469 | ||
8470 | base_len = sizeof *ogs13; | |
8471 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
8472 | if (ogs13) { | |
8473 | ogs11 = &ogs13->gs; | |
8474 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
8475 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
8476 | } else { | |
8477 | ogs11 = NULL; | |
8478 | } | |
8479 | } else { | |
428b2edd | 8480 | OVS_NOT_REACHED(); |
7395c052 NZ |
8481 | } |
8482 | ||
8483 | if (!ogs11) { | |
437d0d22 | 8484 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8485 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8486 | return OFPERR_OFPBRC_BAD_LEN; |
8487 | } | |
8488 | length = ntohs(ogs11->length); | |
8489 | if (length < sizeof base_len) { | |
34582733 | 8490 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
8491 | ofpraw_get_name(raw), length); |
8492 | return OFPERR_OFPBRC_BAD_LEN; | |
8493 | } | |
8494 | ||
8495 | gs->group_id = ntohl(ogs11->group_id); | |
8496 | gs->ref_count = ntohl(ogs11->ref_count); | |
8497 | gs->packet_count = ntohll(ogs11->packet_count); | |
8498 | gs->byte_count = ntohll(ogs11->byte_count); | |
8499 | ||
8500 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
8501 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
8502 | if (!obc) { | |
437d0d22 | 8503 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8504 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8505 | return OFPERR_OFPBRC_BAD_LEN; |
8506 | } | |
8507 | ||
646b2a9c | 8508 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
8509 | for (i = 0; i < gs->n_buckets; i++) { |
8510 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
8511 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
8512 | } | |
8513 | ||
8514 | return 0; | |
8515 | } | |
8516 | ||
5097fee5 SH |
8517 | static void |
8518 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
8519 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8520 | { | |
8521 | struct ofp11_bucket *ob; | |
8522 | size_t start; | |
8523 | ||
6fd6ed71 | 8524 | start = openflow->size; |
5097fee5 SH |
8525 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8526 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
8527 | openflow, ofp_version); | |
8528 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8529 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
8530 | ob->weight = htons(bucket->weight); |
8531 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
8532 | ob->watch_group = htonl(bucket->watch_group); | |
8533 | } | |
8534 | ||
18ac06d3 SH |
8535 | static void |
8536 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
8537 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
8538 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8539 | { | |
8540 | struct ofp15_bucket *ob; | |
8541 | size_t start, actions_start, actions_len; | |
8542 | ||
6fd6ed71 | 8543 | start = openflow->size; |
18ac06d3 SH |
8544 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8545 | ||
6fd6ed71 | 8546 | actions_start = openflow->size; |
18ac06d3 SH |
8547 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
8548 | openflow, ofp_version); | |
6fd6ed71 | 8549 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
8550 | |
8551 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 8552 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
8553 | } |
8554 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
8555 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
8556 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
8557 | } |
8558 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 8559 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
8560 | } |
8561 | ||
8562 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8563 | ob->len = htons(openflow->size - start); |
79870963 | 8564 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
8565 | ob->bucket_id = htonl(bucket_id); |
8566 | } | |
8567 | ||
53eb84a5 SH |
8568 | static void |
8569 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
8570 | const struct ofputil_group_props *gp, | |
8571 | struct ofpbuf *openflow) | |
8572 | { | |
8573 | struct ntr_group_prop_selection_method *prop; | |
8574 | size_t start; | |
8575 | ||
8576 | start = openflow->size; | |
8577 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
8578 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
8579 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
8580 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
8581 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
8582 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
8583 | strcpy(prop->selection_method, gp->selection_method); | |
8584 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 8585 | ofpprop_end(openflow, start); |
53eb84a5 SH |
8586 | } |
8587 | ||
5be50252 SH |
8588 | static void |
8589 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8590 | const struct ovs_list *buckets, |
ca6ba700 | 8591 | struct ovs_list *replies, |
5be50252 | 8592 | enum ofp_version version) |
7395c052 | 8593 | { |
417e7e66 | 8594 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
7395c052 NZ |
8595 | struct ofp11_group_desc_stats *ogds; |
8596 | struct ofputil_bucket *bucket; | |
8597 | size_t start_ogds; | |
8598 | ||
6fd6ed71 | 8599 | start_ogds = reply->size; |
7395c052 NZ |
8600 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8601 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8602 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8603 | } |
8604 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8605 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8606 | ogds->type = gds->type; |
8607 | ogds->group_id = htonl(gds->group_id); | |
8608 | ||
8609 | ofpmp_postappend(replies, start_ogds); | |
8610 | } | |
8611 | ||
18ac06d3 SH |
8612 | static void |
8613 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8614 | const struct ovs_list *buckets, |
ca6ba700 | 8615 | struct ovs_list *replies, |
18ac06d3 SH |
8616 | enum ofp_version version) |
8617 | { | |
417e7e66 | 8618 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
18ac06d3 SH |
8619 | struct ofp15_group_desc_stats *ogds; |
8620 | struct ofputil_bucket *bucket; | |
8621 | size_t start_ogds, start_buckets; | |
8622 | ||
6fd6ed71 | 8623 | start_ogds = reply->size; |
18ac06d3 | 8624 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8625 | start_buckets = reply->size; |
18ac06d3 SH |
8626 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8627 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8628 | gds->type, reply, version); | |
8629 | } | |
8630 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8631 | ogds->type = gds->type; |
8632 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8633 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8634 | |
53eb84a5 SH |
8635 | /* Add group properties */ |
8636 | if (gds->props.selection_method[0]) { | |
8637 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8638 | reply); | |
8639 | } | |
ef5774e3 | 8640 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); |
3986cae6 | 8641 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8642 | |
18ac06d3 SH |
8643 | ofpmp_postappend(replies, start_ogds); |
8644 | } | |
8645 | ||
5be50252 SH |
8646 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8647 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8648 | * initialized with ofpmp_init(). */ | |
8649 | void | |
8650 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8651 | const struct ovs_list *buckets, |
ca6ba700 | 8652 | struct ovs_list *replies) |
5be50252 SH |
8653 | { |
8654 | enum ofp_version version = ofpmp_version(replies); | |
8655 | ||
8656 | switch (version) | |
8657 | { | |
8658 | case OFP11_VERSION: | |
8659 | case OFP12_VERSION: | |
8660 | case OFP13_VERSION: | |
8661 | case OFP14_VERSION: | |
5be50252 SH |
8662 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8663 | break; | |
8664 | ||
18ac06d3 | 8665 | case OFP15_VERSION: |
b79d45a1 | 8666 | case OFP16_VERSION: |
18ac06d3 SH |
8667 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); |
8668 | break; | |
8669 | ||
5be50252 SH |
8670 | case OFP10_VERSION: |
8671 | default: | |
8672 | OVS_NOT_REACHED(); | |
8673 | } | |
8674 | } | |
8675 | ||
7395c052 | 8676 | static enum ofperr |
655ed3ae | 8677 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8678 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8679 | { |
8680 | struct ofp11_bucket *ob; | |
18ac06d3 | 8681 | uint32_t bucket_id = 0; |
7395c052 | 8682 | |
417e7e66 | 8683 | ovs_list_init(buckets); |
7395c052 NZ |
8684 | while (buckets_length > 0) { |
8685 | struct ofputil_bucket *bucket; | |
8686 | struct ofpbuf ofpacts; | |
8687 | enum ofperr error; | |
8688 | size_t ob_len; | |
8689 | ||
8690 | ob = (buckets_length >= sizeof *ob | |
8691 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8692 | : NULL); | |
8693 | if (!ob) { | |
34582733 | 8694 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8695 | buckets_length); |
e27e4ce9 | 8696 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8697 | } |
8698 | ||
8699 | ob_len = ntohs(ob->len); | |
8700 | if (ob_len < sizeof *ob) { | |
8701 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8702 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8703 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8704 | } else if (ob_len > buckets_length) { | |
8705 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8706 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8707 | ob_len, buckets_length); |
8708 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8709 | } | |
8710 | buckets_length -= ob_len; | |
8711 | ||
8712 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8713 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8714 | version, &ofpacts); | |
7395c052 NZ |
8715 | if (error) { |
8716 | ofpbuf_uninit(&ofpacts); | |
8717 | ofputil_bucket_list_destroy(buckets); | |
8718 | return error; | |
8719 | } | |
8720 | ||
8721 | bucket = xzalloc(sizeof *bucket); | |
8722 | bucket->weight = ntohs(ob->weight); | |
8723 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8724 | if (error) { | |
8725 | ofpbuf_uninit(&ofpacts); | |
8726 | ofputil_bucket_list_destroy(buckets); | |
8727 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8728 | } | |
8729 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8730 | bucket->bucket_id = bucket_id++; |
8731 | ||
7395c052 | 8732 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8733 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8734 | ovs_list_push_back(buckets, &bucket->list_node); |
7395c052 NZ |
8735 | } |
8736 | ||
8737 | return 0; | |
8738 | } | |
8739 | ||
18ac06d3 SH |
8740 | static enum ofperr |
8741 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8742 | enum ofp_version version, uint8_t group_type, |
8743 | struct ovs_list *buckets) | |
18ac06d3 SH |
8744 | { |
8745 | struct ofp15_bucket *ob; | |
8746 | ||
417e7e66 | 8747 | ovs_list_init(buckets); |
18ac06d3 SH |
8748 | while (buckets_length > 0) { |
8749 | struct ofputil_bucket *bucket = NULL; | |
8750 | struct ofpbuf ofpacts; | |
8751 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
18ac06d3 SH |
8752 | size_t ob_len, actions_len, properties_len; |
8753 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8754 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8755 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8756 | |
8757 | ofpbuf_init(&ofpacts, 0); | |
8758 | ||
8759 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8760 | if (!ob) { | |
8761 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8762 | " leftover bytes", buckets_length); | |
8763 | goto err; | |
8764 | } | |
8765 | ||
8766 | ob_len = ntohs(ob->len); | |
79870963 | 8767 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8768 | |
8769 | if (ob_len < sizeof *ob) { | |
8770 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8771 | "%"PRIuSIZE" is not valid", ob_len); | |
8772 | goto err; | |
8773 | } else if (ob_len > buckets_length) { | |
8774 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8775 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8776 | PRIuSIZE, ob_len, buckets_length); | |
8777 | goto err; | |
8778 | } else if (actions_len > ob_len - sizeof *ob) { | |
8779 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8780 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8781 | "data size %"PRIuSIZE, actions_len, | |
8782 | ob_len - sizeof *ob); | |
8783 | goto err; | |
8784 | } | |
8785 | buckets_length -= ob_len; | |
8786 | ||
8787 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8788 | &ofpacts); | |
8789 | if (err) { | |
8790 | goto err; | |
8791 | } | |
8792 | ||
8793 | properties_len = ob_len - sizeof *ob - actions_len; | |
0a2869d5 BP |
8794 | struct ofpbuf properties = ofpbuf_const_initializer( |
8795 | ofpbuf_pull(msg, properties_len), properties_len); | |
6fd6ed71 | 8796 | while (properties.size > 0) { |
18ac06d3 | 8797 | struct ofpbuf payload; |
34a543e3 | 8798 | uint64_t type; |
18ac06d3 | 8799 | |
c5562271 | 8800 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
8801 | if (err) { |
8802 | goto err; | |
8803 | } | |
8804 | ||
8805 | switch (type) { | |
8806 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 8807 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
8808 | break; |
8809 | ||
8810 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 8811 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
8812 | break; |
8813 | ||
8814 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 8815 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
8816 | break; |
8817 | ||
8818 | default: | |
34a543e3 | 8819 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
8820 | break; |
8821 | } | |
8822 | ||
8823 | if (err) { | |
8824 | goto err; | |
8825 | } | |
8826 | } | |
8827 | ||
8828 | bucket = xzalloc(sizeof *bucket); | |
8829 | ||
8830 | bucket->weight = ntohs(weight); | |
8831 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8832 | if (err) { | |
8833 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8834 | goto err; | |
8835 | } | |
8836 | bucket->watch_group = ntohl(watch_group); | |
8837 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8838 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8839 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8840 | bucket->bucket_id); | |
8841 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8842 | goto err; | |
8843 | } | |
8844 | ||
8845 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8846 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8847 | ovs_list_push_back(buckets, &bucket->list_node); |
18ac06d3 SH |
8848 | |
8849 | continue; | |
8850 | ||
8851 | err: | |
8852 | free(bucket); | |
8853 | ofpbuf_uninit(&ofpacts); | |
8854 | ofputil_bucket_list_destroy(buckets); | |
8855 | return err; | |
8856 | } | |
8857 | ||
8858 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8859 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8860 | ofputil_bucket_list_destroy(buckets); | |
8861 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8862 | } | |
8863 | ||
8864 | return 0; | |
8865 | } | |
8866 | ||
bc65c25a SH |
8867 | static void |
8868 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8869 | { | |
8870 | memset(gp, 0, sizeof *gp); | |
8871 | } | |
8872 | ||
e8dba719 JR |
8873 | void |
8874 | ofputil_group_properties_copy(struct ofputil_group_props *to, | |
8875 | const struct ofputil_group_props *from) | |
8876 | { | |
8877 | *to = *from; | |
8878 | to->fields.values = xmemdup(from->fields.values, from->fields.values_size); | |
8879 | } | |
8880 | ||
8881 | void | |
8882 | ofputil_group_properties_destroy(struct ofputil_group_props *gp) | |
8883 | { | |
8884 | free(gp->fields.values); | |
8885 | } | |
8886 | ||
bc65c25a SH |
8887 | static enum ofperr |
8888 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8889 | enum ofp11_group_type group_type, | |
8890 | enum ofp15_group_mod_command group_cmd, | |
8891 | struct ofputil_group_props *gp) | |
8892 | { | |
8893 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8894 | size_t fields_len, method_len; | |
8895 | enum ofperr error; | |
8896 | ||
8897 | switch (group_type) { | |
8898 | case OFPGT11_SELECT: | |
8899 | break; | |
8900 | case OFPGT11_ALL: | |
8901 | case OFPGT11_INDIRECT: | |
8902 | case OFPGT11_FF: | |
c5562271 BP |
8903 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8904 | "only allowed for select groups"); | |
bc65c25a SH |
8905 | return OFPERR_OFPBPC_BAD_VALUE; |
8906 | default: | |
8907 | OVS_NOT_REACHED(); | |
8908 | } | |
8909 | ||
8910 | switch (group_cmd) { | |
8911 | case OFPGC15_ADD: | |
8912 | case OFPGC15_MODIFY: | |
88b87a36 | 8913 | case OFPGC15_ADD_OR_MOD: |
bc65c25a SH |
8914 | break; |
8915 | case OFPGC15_DELETE: | |
8916 | case OFPGC15_INSERT_BUCKET: | |
8917 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
8918 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8919 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
8920 | return OFPERR_OFPBPC_BAD_VALUE; |
8921 | default: | |
8922 | OVS_NOT_REACHED(); | |
8923 | } | |
8924 | ||
8925 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
8926 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
8927 | "length %u is not valid", payload->size); | |
bc65c25a SH |
8928 | return OFPERR_OFPBPC_BAD_LEN; |
8929 | } | |
8930 | ||
8931 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8932 | ||
8933 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
8934 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8935 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
8936 | return OFPERR_OFPBPC_BAD_VALUE; |
8937 | } | |
8938 | ||
53cc166a JR |
8939 | if (strcmp("hash", prop->selection_method) |
8940 | && strcmp("dp_hash", prop->selection_method)) { | |
c5562271 BP |
8941 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8942 | "ntr selection method '%s' is not supported", | |
8943 | prop->selection_method); | |
0c4b9393 SH |
8944 | return OFPERR_OFPBPC_BAD_VALUE; |
8945 | } | |
53cc166a | 8946 | /* 'method_len' is now non-zero. */ |
bc65c25a SH |
8947 | |
8948 | strcpy(gp->selection_method, prop->selection_method); | |
8949 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8950 | ||
bc65c25a SH |
8951 | ofpbuf_pull(payload, sizeof *prop); |
8952 | ||
8953 | fields_len = ntohs(prop->length) - sizeof *prop; | |
53cc166a JR |
8954 | if (fields_len && strcmp("hash", gp->selection_method)) { |
8955 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method %s " | |
8956 | "does not support fields", gp->selection_method); | |
bc65c25a SH |
8957 | return OFPERR_OFPBPC_BAD_VALUE; |
8958 | } | |
8959 | ||
8960 | error = oxm_pull_field_array(payload->data, fields_len, | |
8961 | &gp->fields); | |
8962 | if (error) { | |
c5562271 BP |
8963 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8964 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
8965 | return error; |
8966 | } | |
8967 | ||
8968 | return 0; | |
8969 | } | |
8970 | ||
bc65c25a SH |
8971 | static enum ofperr |
8972 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8973 | enum ofp11_group_type group_type, | |
8974 | enum ofp15_group_mod_command group_cmd, | |
8975 | struct ofputil_group_props *gp, | |
8976 | size_t properties_len) | |
8977 | { | |
0a2869d5 BP |
8978 | struct ofpbuf properties = ofpbuf_const_initializer( |
8979 | ofpbuf_pull(msg, properties_len), properties_len); | |
bc65c25a SH |
8980 | while (properties.size > 0) { |
8981 | struct ofpbuf payload; | |
8982 | enum ofperr error; | |
34a543e3 | 8983 | uint64_t type; |
bc65c25a | 8984 | |
c5562271 | 8985 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
8986 | if (error) { |
8987 | return error; | |
8988 | } | |
8989 | ||
8990 | switch (type) { | |
34a543e3 BP |
8991 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
8992 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
8993 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
8994 | group_cmd, gp); | |
bc65c25a SH |
8995 | break; |
8996 | ||
8997 | default: | |
34a543e3 | 8998 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
8999 | break; |
9000 | } | |
9001 | ||
9002 | if (error) { | |
9003 | return error; | |
9004 | } | |
9005 | } | |
9006 | ||
9007 | return 0; | |
9008 | } | |
9009 | ||
975910f2 SH |
9010 | static int |
9011 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
9012 | struct ofpbuf *msg, | |
9013 | enum ofp_version version) | |
7395c052 NZ |
9014 | { |
9015 | struct ofp11_group_desc_stats *ogds; | |
9016 | size_t length; | |
9017 | ||
6fd6ed71 | 9018 | if (!msg->header) { |
7395c052 NZ |
9019 | ofpraw_pull_assert(msg); |
9020 | } | |
9021 | ||
6fd6ed71 | 9022 | if (!msg->size) { |
7395c052 NZ |
9023 | return EOF; |
9024 | } | |
9025 | ||
9026 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9027 | if (!ogds) { | |
437d0d22 | 9028 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 9029 | "leftover bytes at end", msg->size); |
7395c052 NZ |
9030 | return OFPERR_OFPBRC_BAD_LEN; |
9031 | } | |
9032 | gd->type = ogds->type; | |
9033 | gd->group_id = ntohl(ogds->group_id); | |
9034 | ||
9035 | length = ntohs(ogds->length); | |
6fd6ed71 | 9036 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 9037 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 9038 | "length %"PRIuSIZE, length); |
7395c052 NZ |
9039 | return OFPERR_OFPBRC_BAD_LEN; |
9040 | } | |
9041 | ||
655ed3ae SH |
9042 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
9043 | &gd->buckets); | |
7395c052 NZ |
9044 | } |
9045 | ||
18ac06d3 SH |
9046 | static int |
9047 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
9048 | struct ofpbuf *msg, | |
9049 | enum ofp_version version) | |
9050 | { | |
9051 | struct ofp15_group_desc_stats *ogds; | |
9052 | uint16_t length, bucket_list_len; | |
bc65c25a | 9053 | int error; |
18ac06d3 | 9054 | |
6fd6ed71 | 9055 | if (!msg->header) { |
18ac06d3 SH |
9056 | ofpraw_pull_assert(msg); |
9057 | } | |
9058 | ||
6fd6ed71 | 9059 | if (!msg->size) { |
18ac06d3 SH |
9060 | return EOF; |
9061 | } | |
9062 | ||
9063 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
9064 | if (!ogds) { | |
9065 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 9066 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
9067 | return OFPERR_OFPBRC_BAD_LEN; |
9068 | } | |
9069 | gd->type = ogds->type; | |
9070 | gd->group_id = ntohl(ogds->group_id); | |
9071 | ||
9072 | length = ntohs(ogds->length); | |
6fd6ed71 | 9073 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
9074 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
9075 | "length %u", length); | |
9076 | return OFPERR_OFPBRC_BAD_LEN; | |
9077 | } | |
9078 | ||
9079 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
9080 | if (length < bucket_list_len + sizeof *ogds) { | |
9081 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
9082 | "bucket list length %u", bucket_list_len); | |
9083 | return OFPERR_OFPBRC_BAD_LEN; | |
9084 | } | |
64e8c446 | 9085 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
9086 | &gd->buckets); |
9087 | if (error) { | |
9088 | return error; | |
9089 | } | |
18ac06d3 | 9090 | |
bc65c25a SH |
9091 | /* By definition group desc messages don't have a group mod command. |
9092 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
9093 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
9094 | * against group mod messages with other commands supplying | |
9095 | * a NTR selection method group experimenter property. | |
9096 | * Such properties are valid for group desc replies so | |
9097 | * claim that the group mod command is OFPGC15_ADD to | |
9098 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
9099 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 9100 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
9101 | } |
9102 | ||
975910f2 SH |
9103 | /* Converts a group description reply in 'msg' into an abstract |
9104 | * ofputil_group_desc in 'gd'. | |
9105 | * | |
9106 | * Multiple group description replies can be packed into a single OpenFlow | |
9107 | * message. Calling this function multiple times for a single 'msg' iterates | |
9108 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9109 | * null and not modify them between calls. | |
9110 | * | |
9111 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9112 | * otherwise a positive errno value. */ | |
9113 | int | |
9114 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
9115 | struct ofpbuf *msg, enum ofp_version version) | |
9116 | { | |
bc65c25a SH |
9117 | ofputil_init_group_properties(&gd->props); |
9118 | ||
975910f2 SH |
9119 | switch (version) |
9120 | { | |
9121 | case OFP11_VERSION: | |
9122 | case OFP12_VERSION: | |
9123 | case OFP13_VERSION: | |
9124 | case OFP14_VERSION: | |
975910f2 SH |
9125 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
9126 | ||
18ac06d3 | 9127 | case OFP15_VERSION: |
b79d45a1 | 9128 | case OFP16_VERSION: |
18ac06d3 SH |
9129 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); |
9130 | ||
975910f2 SH |
9131 | case OFP10_VERSION: |
9132 | default: | |
9133 | OVS_NOT_REACHED(); | |
9134 | } | |
9135 | } | |
9136 | ||
bc65c25a SH |
9137 | void |
9138 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
9139 | { | |
9140 | ofputil_bucket_list_destroy(&gm->buckets); | |
e8dba719 | 9141 | ofputil_group_properties_destroy(&gm->props); |
bc65c25a SH |
9142 | } |
9143 | ||
4498bea5 SH |
9144 | static struct ofpbuf * |
9145 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
9146 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
9147 | { |
9148 | struct ofpbuf *b; | |
9149 | struct ofp11_group_mod *ogm; | |
9150 | size_t start_ogm; | |
7395c052 | 9151 | struct ofputil_bucket *bucket; |
7395c052 | 9152 | |
4498bea5 | 9153 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 9154 | start_ogm = b->size; |
4498bea5 SH |
9155 | ofpbuf_put_zeros(b, sizeof *ogm); |
9156 | ||
9157 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9158 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
9159 | } | |
9160 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9161 | ogm->command = htons(gm->command); | |
9162 | ogm->type = gm->type; | |
9163 | ogm->group_id = htonl(gm->group_id); | |
9164 | ||
9165 | return b; | |
9166 | } | |
9167 | ||
18ac06d3 SH |
9168 | static struct ofpbuf * |
9169 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
9170 | const struct ofputil_group_mod *gm) | |
9171 | { | |
9172 | struct ofpbuf *b; | |
9173 | struct ofp15_group_mod *ogm; | |
9174 | size_t start_ogm; | |
9175 | struct ofputil_bucket *bucket; | |
9176 | struct id_pool *bucket_ids = NULL; | |
9177 | ||
9178 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 9179 | start_ogm = b->size; |
18ac06d3 SH |
9180 | ofpbuf_put_zeros(b, sizeof *ogm); |
9181 | ||
9182 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
9183 | uint32_t bucket_id; | |
9184 | ||
9185 | /* Generate a bucket id if none was supplied */ | |
9186 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
9187 | if (!bucket_ids) { | |
9188 | const struct ofputil_bucket *bkt; | |
9189 | ||
9190 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
9191 | ||
9192 | /* Mark all bucket_ids that are present in gm | |
9193 | * as used in the pool. */ | |
9194 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
9195 | if (bkt == bucket) { | |
9196 | break; | |
9197 | } | |
9198 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
9199 | id_pool_add(bucket_ids, bkt->bucket_id); | |
9200 | } | |
9201 | } | |
9202 | } | |
9203 | ||
9204 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
9205 | OVS_NOT_REACHED(); | |
9206 | } | |
9207 | } else { | |
9208 | bucket_id = bucket->bucket_id; | |
9209 | } | |
9210 | ||
9211 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
9212 | } | |
9213 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
9214 | ogm->command = htons(gm->command); | |
9215 | ogm->type = gm->type; | |
9216 | ogm->group_id = htonl(gm->group_id); | |
9217 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 9218 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 9219 | |
53eb84a5 SH |
9220 | /* Add group properties */ |
9221 | if (gm->props.selection_method[0]) { | |
9222 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
9223 | } | |
9224 | ||
18ac06d3 SH |
9225 | id_pool_destroy(bucket_ids); |
9226 | return b; | |
9227 | } | |
9228 | ||
d4b1d0ca | 9229 | static void |
9dd30b05 BP |
9230 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
9231 | { | |
d4b1d0ca SH |
9232 | const char *opt_version; |
9233 | const char *version; | |
9234 | const char *cmd_str; | |
9235 | ||
9236 | switch (cmd) { | |
9237 | case OFPGC15_ADD: | |
9238 | case OFPGC15_MODIFY: | |
88b87a36 | 9239 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9240 | case OFPGC15_DELETE: |
9241 | version = "1.1"; | |
9242 | opt_version = "11"; | |
9243 | break; | |
9244 | ||
9245 | case OFPGC15_INSERT_BUCKET: | |
9246 | case OFPGC15_REMOVE_BUCKET: | |
9247 | version = "1.5"; | |
9248 | opt_version = "15"; | |
9dd30b05 | 9249 | break; |
d4b1d0ca SH |
9250 | |
9251 | default: | |
9252 | OVS_NOT_REACHED(); | |
9253 | } | |
9254 | ||
9255 | switch (cmd) { | |
9256 | case OFPGC15_ADD: | |
9257 | cmd_str = "add-group"; | |
9258 | break; | |
9259 | ||
9260 | case OFPGC15_MODIFY: | |
88b87a36 | 9261 | case OFPGC15_ADD_OR_MOD: |
d4b1d0ca SH |
9262 | cmd_str = "mod-group"; |
9263 | break; | |
9264 | ||
9265 | case OFPGC15_DELETE: | |
9266 | cmd_str = "del-group"; | |
9267 | break; | |
9268 | ||
9269 | case OFPGC15_INSERT_BUCKET: | |
9270 | cmd_str = "insert-bucket"; | |
9271 | break; | |
9272 | ||
9273 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 9274 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
9275 | break; |
9276 | ||
9277 | default: | |
9278 | OVS_NOT_REACHED(); | |
9279 | } | |
9280 | ||
9281 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
9282 | cmd_str, version, opt_version); | |
9283 | ||
9284 | } | |
9285 | ||
4498bea5 SH |
9286 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
9287 | * 'ofp_version' and returns the message. */ | |
9288 | struct ofpbuf * | |
9289 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
9290 | const struct ofputil_group_mod *gm) | |
9291 | { | |
d4b1d0ca | 9292 | |
7395c052 | 9293 | switch (ofp_version) { |
d4b1d0ca SH |
9294 | case OFP10_VERSION: |
9295 | bad_group_cmd(gm->command); | |
7395c052 NZ |
9296 | |
9297 | case OFP11_VERSION: | |
9298 | case OFP12_VERSION: | |
c37c0382 AC |
9299 | case OFP13_VERSION: |
9300 | case OFP14_VERSION: | |
88b87a36 | 9301 | if (gm->command > OFPGC11_DELETE && gm->command != OFPGC11_ADD_OR_MOD) { |
d4b1d0ca SH |
9302 | bad_group_cmd(gm->command); |
9303 | } | |
4498bea5 | 9304 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 9305 | |
18ac06d3 | 9306 | case OFP15_VERSION: |
b79d45a1 | 9307 | case OFP16_VERSION: |
18ac06d3 SH |
9308 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); |
9309 | ||
7395c052 | 9310 | default: |
428b2edd | 9311 | OVS_NOT_REACHED(); |
7395c052 | 9312 | } |
7395c052 NZ |
9313 | } |
9314 | ||
aead63f2 SH |
9315 | static enum ofperr |
9316 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9317 | struct ofputil_group_mod *gm) | |
9318 | { | |
9319 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 9320 | enum ofperr error; |
aead63f2 SH |
9321 | |
9322 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9323 | gm->command = ntohs(ogm->command); | |
9324 | gm->type = ogm->type; | |
9325 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 9326 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 9327 | |
6fd6ed71 | 9328 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
9329 | &gm->buckets); |
9330 | ||
9331 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
9332 | if (!error | |
9333 | && ofp_version >= OFP13_VERSION | |
9334 | && gm->command == OFPGC11_DELETE | |
417e7e66 | 9335 | && !ovs_list_is_empty(&gm->buckets)) { |
08ba0810 BP |
9336 | error = OFPERR_OFPGMFC_INVALID_GROUP; |
9337 | } | |
9338 | ||
9339 | return error; | |
aead63f2 SH |
9340 | } |
9341 | ||
18ac06d3 SH |
9342 | static enum ofperr |
9343 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9344 | struct ofputil_group_mod *gm) | |
9345 | { | |
9346 | const struct ofp15_group_mod *ogm; | |
9347 | uint16_t bucket_list_len; | |
9348 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
9349 | ||
9350 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9351 | gm->command = ntohs(ogm->command); | |
9352 | gm->type = ogm->type; | |
9353 | gm->group_id = ntohl(ogm->group_id); | |
9354 | ||
9355 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
9356 | switch (gm->command) { | |
9357 | case OFPGC15_REMOVE_BUCKET: | |
9358 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9359 | error = 0; | |
9360 | } | |
9361 | /* Fall through */ | |
9362 | case OFPGC15_INSERT_BUCKET: | |
9363 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
9364 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
9365 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
9366 | error = 0; | |
9367 | } | |
9368 | break; | |
9369 | ||
9370 | case OFPGC11_ADD: | |
9371 | case OFPGC11_MODIFY: | |
88b87a36 | 9372 | case OFPGC11_ADD_OR_MOD: |
18ac06d3 SH |
9373 | case OFPGC11_DELETE: |
9374 | default: | |
9375 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9376 | error = 0; | |
9377 | } | |
9378 | break; | |
9379 | } | |
9380 | if (error) { | |
9381 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
9382 | "group command bucket id (%u) is out of range", | |
9383 | gm->command_bucket_id); | |
9384 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9385 | } | |
9386 | ||
79870963 | 9387 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 9388 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 9389 | gm->type, &gm->buckets); |
bc65c25a SH |
9390 | if (error) { |
9391 | return error; | |
18ac06d3 SH |
9392 | } |
9393 | ||
bc65c25a SH |
9394 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
9395 | msg->size); | |
18ac06d3 SH |
9396 | } |
9397 | ||
7395c052 NZ |
9398 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
9399 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
9400 | enum ofperr | |
9401 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
9402 | struct ofputil_group_mod *gm) | |
9403 | { | |
0a2869d5 | 9404 | ofputil_init_group_properties(&gm->props); |
7395c052 | 9405 | |
0a2869d5 BP |
9406 | enum ofp_version ofp_version = oh->version; |
9407 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
7395c052 NZ |
9408 | ofpraw_pull_assert(&msg); |
9409 | ||
0a2869d5 | 9410 | enum ofperr err; |
aead63f2 SH |
9411 | switch (ofp_version) |
9412 | { | |
9413 | case OFP11_VERSION: | |
9414 | case OFP12_VERSION: | |
9415 | case OFP13_VERSION: | |
9416 | case OFP14_VERSION: | |
aead63f2 SH |
9417 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
9418 | break; | |
9419 | ||
18ac06d3 | 9420 | case OFP15_VERSION: |
b79d45a1 | 9421 | case OFP16_VERSION: |
18ac06d3 SH |
9422 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); |
9423 | break; | |
9424 | ||
aead63f2 SH |
9425 | case OFP10_VERSION: |
9426 | default: | |
9427 | OVS_NOT_REACHED(); | |
9428 | } | |
e57681e5 SH |
9429 | if (err) { |
9430 | return err; | |
9431 | } | |
9432 | ||
e1799eb7 SH |
9433 | switch (gm->type) { |
9434 | case OFPGT11_INDIRECT: | |
beaa2b87 LS |
9435 | if (gm->command != OFPGC11_DELETE |
9436 | && !ovs_list_is_singleton(&gm->buckets) ) { | |
290eada7 | 9437 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
9438 | } |
9439 | break; | |
9440 | case OFPGT11_ALL: | |
9441 | case OFPGT11_SELECT: | |
9442 | case OFPGT11_FF: | |
9443 | break; | |
9444 | default: | |
09d4b951 | 9445 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
9446 | } |
9447 | ||
9448 | switch (gm->command) { | |
9449 | case OFPGC11_ADD: | |
9450 | case OFPGC11_MODIFY: | |
88b87a36 | 9451 | case OFPGC11_ADD_OR_MOD: |
65075b99 SH |
9452 | case OFPGC11_DELETE: |
9453 | case OFPGC15_INSERT_BUCKET: | |
9454 | break; | |
9455 | case OFPGC15_REMOVE_BUCKET: | |
417e7e66 | 9456 | if (!ovs_list_is_empty(&gm->buckets)) { |
65075b99 SH |
9457 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9458 | } | |
9459 | break; | |
9460 | default: | |
09d4b951 | 9461 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
9462 | } |
9463 | ||
0a2869d5 | 9464 | struct ofputil_bucket *bucket; |
e57681e5 | 9465 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
9466 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
9467 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9468 | } | |
9469 | ||
e57681e5 SH |
9470 | switch (gm->type) { |
9471 | case OFPGT11_ALL: | |
9472 | case OFPGT11_INDIRECT: | |
9473 | if (ofputil_bucket_has_liveness(bucket)) { | |
9474 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
9475 | } | |
9476 | break; | |
9477 | case OFPGT11_SELECT: | |
9478 | break; | |
9479 | case OFPGT11_FF: | |
9480 | if (!ofputil_bucket_has_liveness(bucket)) { | |
9481 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9482 | } | |
9483 | break; | |
9484 | default: | |
896313f3 FL |
9485 | /* Returning BAD TYPE to be consistent |
9486 | * though gm->type has been checked already. */ | |
9487 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
9488 | } |
9489 | } | |
9490 | ||
9491 | return 0; | |
7395c052 NZ |
9492 | } |
9493 | ||
25070e04 JR |
9494 | /* Destroys 'bms'. */ |
9495 | void | |
6dd3c787 JR |
9496 | ofputil_free_bundle_msgs(struct ofputil_bundle_msg *bms, size_t n_bms) |
9497 | { | |
9498 | for (size_t i = 0; i < n_bms; i++) { | |
9499 | switch ((int)bms[i].type) { | |
9500 | case OFPTYPE_FLOW_MOD: | |
9501 | free(CONST_CAST(struct ofpact *, bms[i].fm.ofpacts)); | |
9502 | break; | |
9503 | case OFPTYPE_GROUP_MOD: | |
9504 | ofputil_uninit_group_mod(&bms[i].gm); | |
9505 | break; | |
9506 | case OFPTYPE_PACKET_OUT: | |
9507 | free(bms[i].po.ofpacts); | |
9508 | free(CONST_CAST(void *, bms[i].po.packet)); | |
9509 | break; | |
9510 | default: | |
9511 | break; | |
9512 | } | |
9513 | } | |
9514 | free(bms); | |
9515 | } | |
9516 | ||
9517 | void | |
9518 | ofputil_encode_bundle_msgs(const struct ofputil_bundle_msg *bms, | |
9519 | size_t n_bms, struct ovs_list *requests, | |
25070e04 JR |
9520 | enum ofputil_protocol protocol) |
9521 | { | |
9522 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
9523 | ||
9524 | for (size_t i = 0; i < n_bms; i++) { | |
9525 | struct ofpbuf *request = NULL; | |
9526 | ||
9527 | switch ((int)bms[i].type) { | |
9528 | case OFPTYPE_FLOW_MOD: | |
9529 | request = ofputil_encode_flow_mod(&bms[i].fm, protocol); | |
25070e04 JR |
9530 | break; |
9531 | case OFPTYPE_GROUP_MOD: | |
9532 | request = ofputil_encode_group_mod(version, &bms[i].gm); | |
6dd3c787 JR |
9533 | break; |
9534 | case OFPTYPE_PACKET_OUT: | |
9535 | request = ofputil_encode_packet_out(&bms[i].po, protocol); | |
25070e04 JR |
9536 | break; |
9537 | default: | |
9538 | break; | |
9539 | } | |
9540 | if (request) { | |
9541 | ovs_list_push_back(requests, &request->list_node); | |
9542 | } | |
9543 | } | |
25070e04 JR |
9544 | } |
9545 | ||
64626975 SH |
9546 | /* Parse a queue status request message into 'oqsr'. |
9547 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
9548 | enum ofperr | |
9549 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
9550 | struct ofputil_queue_stats_request *oqsr) | |
9551 | { | |
9552 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 9553 | case OFP16_VERSION: |
42dccab5 | 9554 | case OFP15_VERSION: |
c37c0382 | 9555 | case OFP14_VERSION: |
2e1ae200 | 9556 | case OFP13_VERSION: |
64626975 SH |
9557 | case OFP12_VERSION: |
9558 | case OFP11_VERSION: { | |
9559 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
9560 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
9561 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
9562 | } | |
9563 | ||
9564 | case OFP10_VERSION: { | |
7f05e7ab JR |
9565 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
9566 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 9567 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
9568 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
9569 | if (oqsr->port_no == OFPP_ALL) { | |
9570 | oqsr->port_no = OFPP_ANY; | |
9571 | } | |
64626975 SH |
9572 | return 0; |
9573 | } | |
9574 | ||
9575 | default: | |
428b2edd | 9576 | OVS_NOT_REACHED(); |
64626975 SH |
9577 | } |
9578 | } | |
9579 | ||
0746a84f BP |
9580 | /* Encode a queue stats request for 'oqsr', the encoded message |
9581 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9582 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9583 | struct ofpbuf * |
9584 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9585 | const struct ofputil_queue_stats_request *oqsr) | |
9586 | { | |
9587 | struct ofpbuf *request; | |
9588 | ||
9589 | switch (ofp_version) { | |
9590 | case OFP11_VERSION: | |
2e1ae200 | 9591 | case OFP12_VERSION: |
c37c0382 | 9592 | case OFP13_VERSION: |
42dccab5 | 9593 | case OFP14_VERSION: |
b79d45a1 BP |
9594 | case OFP15_VERSION: |
9595 | case OFP16_VERSION: { | |
64626975 SH |
9596 | struct ofp11_queue_stats_request *req; |
9597 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9598 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9599 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9600 | req->queue_id = htonl(oqsr->queue_id); | |
9601 | break; | |
9602 | } | |
9603 | case OFP10_VERSION: { | |
9604 | struct ofp10_queue_stats_request *req; | |
9605 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9606 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9607 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9608 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9609 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9610 | req->queue_id = htonl(oqsr->queue_id); |
9611 | break; | |
9612 | } | |
9613 | default: | |
428b2edd | 9614 | OVS_NOT_REACHED(); |
64626975 SH |
9615 | } |
9616 | ||
9617 | return request; | |
9618 | } | |
9619 | ||
9620 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9621 | * message 'oh'. */ | |
9622 | size_t | |
9623 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9624 | { | |
0a2869d5 | 9625 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
64626975 | 9626 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
9627 | |
9628 | for (size_t n = 0; ; n++) { | |
9629 | struct ofputil_queue_stats qs; | |
9630 | if (ofputil_decode_queue_stats(&qs, &b)) { | |
9631 | return n; | |
9632 | } | |
1bb2cdbe | 9633 | } |
64626975 SH |
9634 | } |
9635 | ||
9636 | static enum ofperr | |
9637 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9638 | const struct ofp10_queue_stats *qs10) | |
9639 | { | |
4e022ec0 | 9640 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9641 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9642 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9643 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9644 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9645 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9646 | |
9647 | return 0; | |
9648 | } | |
9649 | ||
9650 | static enum ofperr | |
9651 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9652 | const struct ofp11_queue_stats *qs11) | |
9653 | { | |
9654 | enum ofperr error; | |
9655 | ||
9656 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9657 | if (error) { | |
9658 | return error; | |
9659 | } | |
9660 | ||
9661 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9662 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9663 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9664 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9665 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9666 | |
9667 | return 0; | |
9668 | } | |
9669 | ||
2e1ae200 JR |
9670 | static enum ofperr |
9671 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9672 | const struct ofp13_queue_stats *qs13) | |
9673 | { | |
6dc34a0d | 9674 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9675 | if (!error) { |
6dc34a0d BP |
9676 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9677 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9678 | } |
9679 | ||
9680 | return error; | |
9681 | } | |
9682 | ||
1bb2cdbe BP |
9683 | static enum ofperr |
9684 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9685 | struct ofpbuf *msg) | |
9686 | { | |
9687 | const struct ofp14_queue_stats *qs14; | |
9688 | size_t len; | |
9689 | ||
9690 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9691 | if (!qs14) { | |
9692 | return OFPERR_OFPBRC_BAD_LEN; | |
9693 | } | |
9694 | ||
9695 | len = ntohs(qs14->length); | |
6fd6ed71 | 9696 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9697 | return OFPERR_OFPBRC_BAD_LEN; |
9698 | } | |
9699 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9700 | ||
9701 | /* No properties yet defined, so ignore them for now. */ | |
9702 | ||
9703 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9704 | } | |
9705 | ||
64626975 SH |
9706 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9707 | * ofputil_queue_stats in 'qs'. | |
9708 | * | |
9709 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9710 | * message. Calling this function multiple times for a single 'msg' iterates | |
9711 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9712 | * null and not modify them between calls. | |
9713 | * | |
9714 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9715 | * otherwise a positive errno value. */ | |
9716 | int | |
9717 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9718 | { | |
9719 | enum ofperr error; | |
9720 | enum ofpraw raw; | |
9721 | ||
6fd6ed71 | 9722 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9723 | : ofpraw_pull(&raw, msg)); |
9724 | if (error) { | |
9725 | return error; | |
9726 | } | |
9727 | ||
6fd6ed71 | 9728 | if (!msg->size) { |
64626975 | 9729 | return EOF; |
1bb2cdbe BP |
9730 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9731 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9732 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9733 | const struct ofp13_queue_stats *qs13; | |
9734 | ||
9735 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9736 | if (!qs13) { | |
9737 | goto bad_len; | |
9738 | } | |
9739 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9740 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9741 | const struct ofp11_queue_stats *qs11; | |
9742 | ||
9743 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9744 | if (!qs11) { | |
2e1ae200 | 9745 | goto bad_len; |
64626975 SH |
9746 | } |
9747 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9748 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9749 | const struct ofp10_queue_stats *qs10; | |
9750 | ||
9751 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9752 | if (!qs10) { | |
2e1ae200 | 9753 | goto bad_len; |
64626975 SH |
9754 | } |
9755 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9756 | } else { | |
428b2edd | 9757 | OVS_NOT_REACHED(); |
64626975 | 9758 | } |
2e1ae200 JR |
9759 | |
9760 | bad_len: | |
437d0d22 | 9761 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9762 | "bytes at end", msg->size); |
2e1ae200 | 9763 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9764 | } |
9765 | ||
9766 | static void | |
9767 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9768 | struct ofp10_queue_stats *qs10) | |
9769 | { | |
4e022ec0 | 9770 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9771 | memset(qs10->pad, 0, sizeof qs10->pad); |
9772 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9773 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9774 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9775 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9776 | } |
9777 | ||
9778 | static void | |
9779 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9780 | struct ofp11_queue_stats *qs11) | |
9781 | { | |
9782 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9783 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9784 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9785 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9786 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9787 | } |
9788 | ||
2e1ae200 JR |
9789 | static void |
9790 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9791 | struct ofp13_queue_stats *qs13) | |
9792 | { | |
9793 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9794 | if (oqs->duration_sec != UINT32_MAX) { |
9795 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9796 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9797 | } else { | |
b8266395 BP |
9798 | qs13->duration_sec = OVS_BE32_MAX; |
9799 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9800 | } |
2e1ae200 JR |
9801 | } |
9802 | ||
1bb2cdbe BP |
9803 | static void |
9804 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9805 | struct ofp14_queue_stats *qs14) | |
9806 | { | |
9807 | qs14->length = htons(sizeof *qs14); | |
9808 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9809 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9810 | } | |
9811 | ||
9812 | ||
64626975 SH |
9813 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9814 | void | |
ca6ba700 | 9815 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9816 | const struct ofputil_queue_stats *oqs) |
9817 | { | |
e28ac5cf | 9818 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9819 | case OFP13_VERSION: { |
9820 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9821 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9822 | break; | |
9823 | } | |
9824 | ||
64626975 SH |
9825 | case OFP12_VERSION: |
9826 | case OFP11_VERSION: { | |
2e1ae200 | 9827 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9828 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9829 | break; | |
9830 | } | |
9831 | ||
9832 | case OFP10_VERSION: { | |
2e1ae200 | 9833 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9834 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9835 | break; | |
9836 | } | |
9837 | ||
42dccab5 | 9838 | case OFP14_VERSION: |
b79d45a1 BP |
9839 | case OFP15_VERSION: |
9840 | case OFP16_VERSION: { | |
1bb2cdbe BP |
9841 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9842 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9843 | break; |
1bb2cdbe | 9844 | } |
c37c0382 | 9845 | |
64626975 | 9846 | default: |
428b2edd | 9847 | OVS_NOT_REACHED(); |
64626975 SH |
9848 | } |
9849 | } | |
777af88d AC |
9850 | |
9851 | enum ofperr | |
9852 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9853 | struct ofputil_bundle_ctrl_msg *msg) | |
9854 | { | |
0a2869d5 BP |
9855 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
9856 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
9857 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL |
9858 | || raw == OFPRAW_ONFT13_BUNDLE_CONTROL); | |
777af88d | 9859 | |
0a2869d5 | 9860 | const struct ofp14_bundle_ctrl_msg *m = b.msg; |
777af88d AC |
9861 | msg->bundle_id = ntohl(m->bundle_id); |
9862 | msg->type = ntohs(m->type); | |
9863 | msg->flags = ntohs(m->flags); | |
9864 | ||
9865 | return 0; | |
9866 | } | |
9867 | ||
db5076ee JR |
9868 | struct ofpbuf * |
9869 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9870 | struct ofputil_bundle_ctrl_msg *bc) | |
9871 | { | |
9872 | struct ofpbuf *request; | |
9873 | struct ofp14_bundle_ctrl_msg *m; | |
9874 | ||
9875 | switch (ofp_version) { | |
9876 | case OFP10_VERSION: | |
9877 | case OFP11_VERSION: | |
9878 | case OFP12_VERSION: | |
06d4d4b6 | 9879 | ovs_fatal(0, "bundles need OpenFlow 1.3 or later " |
db5076ee | 9880 | "(\'-O OpenFlow14\')"); |
06d4d4b6 | 9881 | case OFP13_VERSION: |
db5076ee JR |
9882 | case OFP14_VERSION: |
9883 | case OFP15_VERSION: | |
b79d45a1 | 9884 | case OFP16_VERSION: |
06d4d4b6 JR |
9885 | request = ofpraw_alloc(ofp_version == OFP13_VERSION |
9886 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9887 | : OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
db5076ee JR |
9888 | m = ofpbuf_put_zeros(request, sizeof *m); |
9889 | ||
9890 | m->bundle_id = htonl(bc->bundle_id); | |
9891 | m->type = htons(bc->type); | |
9892 | m->flags = htons(bc->flags); | |
9893 | break; | |
9894 | default: | |
9895 | OVS_NOT_REACHED(); | |
9896 | } | |
9897 | ||
9898 | return request; | |
9899 | } | |
9900 | ||
777af88d AC |
9901 | struct ofpbuf * |
9902 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9903 | struct ofputil_bundle_ctrl_msg *msg) | |
9904 | { | |
9905 | struct ofpbuf *buf; | |
9906 | struct ofp14_bundle_ctrl_msg *m; | |
9907 | ||
06d4d4b6 JR |
9908 | buf = ofpraw_alloc_reply(oh->version == OFP13_VERSION |
9909 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9910 | : OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
777af88d AC |
9911 | m = ofpbuf_put_zeros(buf, sizeof *m); |
9912 | ||
9913 | m->bundle_id = htonl(msg->bundle_id); | |
9914 | m->type = htons(msg->type); | |
9915 | m->flags = htons(msg->flags); | |
9916 | ||
9917 | return buf; | |
9918 | } | |
9919 | ||
c25ce22d JR |
9920 | /* Return true for bundlable state change requests, false for other messages. |
9921 | */ | |
9922 | static bool | |
9923 | ofputil_is_bundlable(enum ofptype type) | |
9924 | { | |
9925 | switch (type) { | |
9926 | /* Minimum required by OpenFlow 1.4. */ | |
9927 | case OFPTYPE_PORT_MOD: | |
9928 | case OFPTYPE_FLOW_MOD: | |
25070e04 JR |
9929 | /* Other supported types. */ |
9930 | case OFPTYPE_GROUP_MOD: | |
6dd3c787 | 9931 | case OFPTYPE_PACKET_OUT: |
c25ce22d JR |
9932 | return true; |
9933 | ||
9934 | /* Nice to have later. */ | |
9935 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
c25ce22d JR |
9936 | case OFPTYPE_TABLE_MOD: |
9937 | case OFPTYPE_METER_MOD: | |
4e548ad9 | 9938 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9939 | |
9940 | /* Not to be bundlable. */ | |
9941 | case OFPTYPE_ECHO_REQUEST: | |
9942 | case OFPTYPE_FEATURES_REQUEST: | |
9943 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9944 | case OFPTYPE_SET_CONFIG: | |
9945 | case OFPTYPE_BARRIER_REQUEST: | |
9946 | case OFPTYPE_ROLE_REQUEST: | |
9947 | case OFPTYPE_ECHO_REPLY: | |
9948 | case OFPTYPE_SET_FLOW_FORMAT: | |
9949 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9950 | case OFPTYPE_SET_CONTROLLER_ID: | |
9951 | case OFPTYPE_FLOW_AGE: | |
9952 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9953 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9954 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9955 | case OFPTYPE_DESC_STATS_REQUEST: | |
9956 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9957 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9958 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9959 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9960 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9961 | case OFPTYPE_PORT_STATS_REQUEST: |
9962 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9963 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9964 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9965 | case OFPTYPE_METER_STATS_REQUEST: | |
9966 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9967 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9968 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9969 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9970 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9971 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9972 | case OFPTYPE_BUNDLE_CONTROL: | |
9973 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9974 | case OFPTYPE_HELLO: | |
9975 | case OFPTYPE_ERROR: | |
9976 | case OFPTYPE_FEATURES_REPLY: | |
9977 | case OFPTYPE_GET_CONFIG_REPLY: | |
9978 | case OFPTYPE_PACKET_IN: | |
9979 | case OFPTYPE_FLOW_REMOVED: | |
9980 | case OFPTYPE_PORT_STATUS: | |
9981 | case OFPTYPE_BARRIER_REPLY: | |
9982 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9983 | case OFPTYPE_DESC_STATS_REPLY: | |
9984 | case OFPTYPE_FLOW_STATS_REPLY: | |
9985 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9986 | case OFPTYPE_PORT_STATS_REPLY: | |
9987 | case OFPTYPE_TABLE_STATS_REPLY: | |
9988 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9989 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9990 | case OFPTYPE_ROLE_REPLY: | |
9991 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9992 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9993 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9994 | case OFPTYPE_GET_ASYNC_REPLY: | |
9995 | case OFPTYPE_GROUP_STATS_REPLY: | |
9996 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9997 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9998 | case OFPTYPE_METER_STATS_REPLY: | |
9999 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
10000 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
10001 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 10002 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 10003 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 10004 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 10005 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 ML |
10006 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
10007 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
77ab5fd2 | 10008 | case OFPTYPE_NXT_RESUME: |
fb8f22c1 BY |
10009 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
10010 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: | |
10011 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
10012 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
2a7c4805 | 10013 | case OFPTYPE_CT_FLUSH_ZONE: |
c25ce22d JR |
10014 | break; |
10015 | } | |
10016 | ||
10017 | return false; | |
10018 | } | |
10019 | ||
777af88d AC |
10020 | enum ofperr |
10021 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 | 10022 | struct ofputil_bundle_add_msg *msg, |
0a2869d5 | 10023 | enum ofptype *typep) |
777af88d | 10024 | { |
0a2869d5 BP |
10025 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10026 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
10027 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE |
10028 | || raw == OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE); | |
777af88d | 10029 | |
0a2869d5 | 10030 | const struct ofp14_bundle_ctrl_msg *m = ofpbuf_pull(&b, sizeof *m); |
777af88d AC |
10031 | msg->bundle_id = ntohl(m->bundle_id); |
10032 | msg->flags = ntohs(m->flags); | |
10033 | ||
6fd6ed71 | 10034 | msg->msg = b.data; |
46be7132 | 10035 | if (msg->msg->version != oh->version) { |
bc02606a | 10036 | return OFPERR_OFPBFC_BAD_VERSION; |
46be7132 | 10037 | } |
0a2869d5 | 10038 | size_t inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 10039 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
10040 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
10041 | } | |
be6f6393 JR |
10042 | if (msg->msg->xid != oh->xid) { |
10043 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
10044 | } | |
777af88d | 10045 | |
c25ce22d | 10046 | /* Reject unbundlable messages. */ |
0a2869d5 BP |
10047 | enum ofptype type; |
10048 | enum ofperr error = ofptype_decode(&type, msg->msg); | |
c25ce22d JR |
10049 | if (error) { |
10050 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
10051 | "message is unparsable (%s)", ofperr_get_name(error)); | |
10052 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
10053 | } | |
10054 | ||
0a2869d5 | 10055 | if (!ofputil_is_bundlable(type)) { |
44648b0f | 10056 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
0a2869d5 | 10057 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type)); |
c25ce22d JR |
10058 | return OFPERR_OFPBFC_MSG_UNSUP; |
10059 | } | |
0a2869d5 BP |
10060 | if (typep) { |
10061 | *typep = type; | |
10062 | } | |
c25ce22d | 10063 | |
777af88d AC |
10064 | return 0; |
10065 | } | |
10066 | ||
10067 | struct ofpbuf * | |
10068 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
10069 | struct ofputil_bundle_add_msg *msg) | |
10070 | { | |
10071 | struct ofpbuf *request; | |
10072 | struct ofp14_bundle_ctrl_msg *m; | |
10073 | ||
7b3dca89 | 10074 | /* Must use the same xid as the embedded message. */ |
06d4d4b6 JR |
10075 | request = ofpraw_alloc_xid(ofp_version == OFP13_VERSION |
10076 | ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE | |
10077 | : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
bcf899f7 | 10078 | msg->msg->xid, ntohs(msg->msg->length)); |
777af88d AC |
10079 | m = ofpbuf_put_zeros(request, sizeof *m); |
10080 | ||
10081 | m->bundle_id = htonl(msg->bundle_id); | |
10082 | m->flags = htons(msg->flags); | |
10083 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
10084 | ||
bcf899f7 | 10085 | ofpmsg_update_length(request); |
777af88d AC |
10086 | return request; |
10087 | } | |
6159c531 JG |
10088 | |
10089 | static void | |
4e548ad9 | 10090 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 10091 | { |
4e548ad9 | 10092 | struct ofputil_tlv_map *map; |
6159c531 JG |
10093 | |
10094 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 10095 | struct nx_tlv_map *nx_map; |
6159c531 JG |
10096 | |
10097 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
10098 | nx_map->option_class = htons(map->option_class); | |
10099 | nx_map->option_type = map->option_type; | |
10100 | nx_map->option_len = map->option_len; | |
10101 | nx_map->index = htons(map->index); | |
10102 | } | |
10103 | } | |
10104 | ||
10105 | struct ofpbuf * | |
4e548ad9 ML |
10106 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
10107 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
10108 | { |
10109 | struct ofpbuf *b; | |
4e548ad9 | 10110 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 10111 | |
4e548ad9 ML |
10112 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
10113 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
10114 | nx_ttm->command = htons(ttm->command); | |
10115 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
10116 | |
10117 | return b; | |
10118 | } | |
10119 | ||
10120 | static enum ofperr | |
4e548ad9 | 10121 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 10122 | struct ovs_list *mappings) |
6159c531 | 10123 | { |
417e7e66 | 10124 | ovs_list_init(mappings); |
6159c531 JG |
10125 | |
10126 | while (msg->size) { | |
4e548ad9 ML |
10127 | struct nx_tlv_map *nx_map; |
10128 | struct ofputil_tlv_map *map; | |
6159c531 JG |
10129 | |
10130 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
10131 | map = xmalloc(sizeof *map); | |
417e7e66 | 10132 | ovs_list_push_back(mappings, &map->list_node); |
6159c531 JG |
10133 | |
10134 | map->option_class = ntohs(nx_map->option_class); | |
10135 | map->option_type = nx_map->option_type; | |
10136 | ||
10137 | map->option_len = nx_map->option_len; | |
4e548ad9 | 10138 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 10139 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10140 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 10141 | map->option_len); |
4e548ad9 ML |
10142 | ofputil_uninit_tlv_table(mappings); |
10143 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
10144 | } |
10145 | ||
10146 | map->index = ntohs(nx_map->index); | |
dfe5044c | 10147 | if (map->index >= max_fields) { |
6159c531 | 10148 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 10149 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 10150 | map->index, max_fields - 1); |
4e548ad9 ML |
10151 | ofputil_uninit_tlv_table(mappings); |
10152 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
10153 | } |
10154 | } | |
10155 | ||
10156 | return 0; | |
10157 | } | |
10158 | ||
10159 | enum ofperr | |
4e548ad9 ML |
10160 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
10161 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 | 10162 | { |
0a2869d5 | 10163 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10164 | ofpraw_pull_assert(&msg); |
10165 | ||
0a2869d5 | 10166 | struct nx_tlv_table_mod *nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
4e548ad9 ML |
10167 | ttm->command = ntohs(nx_ttm->command); |
10168 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 10169 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
10170 | "tlv table mod command (%u) is out of range", |
10171 | ttm->command); | |
10172 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
10173 | } |
10174 | ||
4e548ad9 ML |
10175 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
10176 | &ttm->mappings); | |
6159c531 JG |
10177 | } |
10178 | ||
10179 | struct ofpbuf * | |
4e548ad9 ML |
10180 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
10181 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
10182 | { |
10183 | struct ofpbuf *b; | |
4e548ad9 | 10184 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 10185 | |
4e548ad9 ML |
10186 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
10187 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
10188 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
10189 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 10190 | |
4e548ad9 | 10191 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
10192 | |
10193 | return b; | |
10194 | } | |
10195 | ||
4e548ad9 | 10196 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
10197 | * if successful, otherwise an ofperr. |
10198 | * | |
4e548ad9 ML |
10199 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
10200 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 10201 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 10202 | enum ofperr |
4e548ad9 ML |
10203 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
10204 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 | 10205 | { |
0a2869d5 | 10206 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
10207 | ofpraw_pull_assert(&msg); |
10208 | ||
0a2869d5 | 10209 | struct nx_tlv_table_reply *nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
4e548ad9 ML |
10210 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); |
10211 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 10212 | |
4e548ad9 | 10213 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
10214 | } |
10215 | ||
10216 | void | |
4e548ad9 | 10217 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 10218 | { |
4e548ad9 | 10219 | struct ofputil_tlv_map *map; |
6159c531 JG |
10220 | |
10221 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
10222 | free(map); | |
10223 | } | |
10224 | } | |
98090482 | 10225 | |
2da7974c BP |
10226 | const char * |
10227 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
10228 | { | |
10229 | switch (type) { | |
10230 | case OAM_PACKET_IN: return "PACKET_IN"; | |
10231 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
10232 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
10233 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
10234 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
10235 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
10236 | ||
10237 | case OAM_N_TYPES: | |
10238 | default: | |
10239 | OVS_NOT_REACHED(); | |
10240 | } | |
10241 | } | |
10242 | ||
8fd0bb60 BP |
10243 | struct ofp14_async_prop { |
10244 | uint64_t prop_type; | |
10245 | enum ofputil_async_msg_type oam; | |
10246 | bool master; | |
10247 | uint32_t allowed10, allowed14; | |
10248 | }; | |
10249 | ||
10250 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
10251 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
10252 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
10253 | ||
10254 | static const struct ofp14_async_prop async_props[] = { | |
10255 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
10256 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
10257 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
10258 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
10259 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
10260 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
10261 | }; | |
10262 | ||
10263 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
10264 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
10265 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
10266 | ||
10267 | static const struct ofp14_async_prop * | |
10268 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
10269 | { | |
10270 | FOR_EACH_ASYNC_PROP (ap) { | |
10271 | if (prop_type == ap->prop_type) { | |
10272 | return ap; | |
10273 | } | |
10274 | } | |
10275 | return NULL; | |
10276 | } | |
10277 | ||
10278 | static const struct ofp14_async_prop * | |
10279 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
10280 | bool master) | |
10281 | { | |
10282 | FOR_EACH_ASYNC_PROP (ap) { | |
10283 | if (ap->oam == oam && ap->master == master) { | |
10284 | return ap; | |
10285 | } | |
10286 | } | |
10287 | return NULL; | |
10288 | } | |
10289 | ||
10290 | static uint32_t | |
10291 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
10292 | enum ofp_version version) | |
10293 | { | |
10294 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
10295 | } | |
10296 | ||
10297 | static ovs_be32 | |
10298 | encode_async_mask(const struct ofputil_async_cfg *src, | |
10299 | const struct ofp14_async_prop *ap, | |
10300 | enum ofp_version version) | |
10301 | { | |
10302 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
10303 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
10304 | } | |
10305 | ||
10306 | static enum ofperr | |
10307 | decode_async_mask(ovs_be32 src, | |
10308 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
10309 | bool loose, struct ofputil_async_cfg *dst) | |
10310 | { | |
10311 | uint32_t mask = ntohl(src); | |
10312 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
10313 | if (mask & ~allowed) { | |
10314 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
10315 | "bad value %#x for %s (allowed mask %#x)", | |
10316 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
10317 | allowed); | |
10318 | mask &= allowed; | |
10319 | if (!loose) { | |
10320 | return OFPERR_OFPACFC_INVALID; | |
10321 | } | |
10322 | } | |
10323 | ||
9bfe9334 BP |
10324 | if (ap->oam == OAM_PACKET_IN) { |
10325 | if (mask & (1u << OFPR_NO_MATCH)) { | |
10326 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
10327 | if (version < OFP13_VERSION) { | |
10328 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
10329 | } | |
10330 | } | |
10331 | } | |
10332 | ||
8fd0bb60 BP |
10333 | uint32_t *array = ap->master ? dst->master : dst->slave; |
10334 | array[ap->oam] = mask; | |
10335 | return 0; | |
10336 | } | |
10337 | ||
10338 | static enum ofperr | |
10339 | parse_async_tlv(const struct ofpbuf *property, | |
10340 | const struct ofp14_async_prop *ap, | |
10341 | struct ofputil_async_cfg *ac, | |
10342 | enum ofp_version version, bool loose) | |
10343 | { | |
10344 | enum ofperr error; | |
10345 | ovs_be32 mask; | |
10346 | ||
10347 | error = ofpprop_parse_be32(property, &mask); | |
10348 | if (error) { | |
10349 | return error; | |
10350 | } | |
10351 | ||
10352 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10353 | /* For experimenter properties, whether a property is for the master or | |
10354 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
10355 | * ofp_prop_experimenter. Check that these are consistent. */ | |
10356 | const struct ofp_prop_experimenter *ope = property->data; | |
10357 | bool should_be_master = ope->type == htons(0xffff); | |
10358 | if (should_be_master != ap->master) { | |
10359 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
10360 | "indicates %s role but exp_type %"PRIu32" indicates " | |
10361 | "%s role", | |
10362 | ntohs(ope->type), | |
10363 | should_be_master ? "master" : "slave", | |
10364 | ntohl(ope->exp_type), | |
10365 | ap->master ? "master" : "slave"); | |
10366 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
10367 | } | |
10368 | } | |
10369 | ||
10370 | return decode_async_mask(mask, ap, version, loose, ac); | |
10371 | } | |
10372 | ||
10373 | static void | |
10374 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
10375 | enum ofputil_async_msg_type oam, | |
10376 | enum ofp_version version, | |
10377 | struct ofputil_async_cfg *dst) | |
10378 | { | |
10379 | for (int i = 0; i < 2; i++) { | |
10380 | bool master = i == 0; | |
10381 | const struct ofp14_async_prop *ap | |
10382 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10383 | decode_async_mask(masks[i], ap, version, true, dst); | |
10384 | } | |
10385 | } | |
10386 | ||
98090482 | 10387 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 10388 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 10389 | * |
5876b4db BP |
10390 | * Some versions of the "set async config" request change only some of the |
10391 | * settings and leave the others alone. This function uses 'basis' as the | |
10392 | * initial state for decoding these. Other versions of the request change all | |
10393 | * the settings; this function ignores 'basis' when decoding these. | |
10394 | * | |
98090482 NR |
10395 | * If 'loose' is true, this function ignores properties and values that it does |
10396 | * not understand, as a controller would want to do when interpreting | |
10397 | * capabilities provided by a switch. If 'loose' is false, this function | |
10398 | * treats unknown properties and values as an error, as a switch would want to | |
10399 | * do when interpreting a configuration request made by a controller. | |
10400 | * | |
d18cc1ee AA |
10401 | * Returns 0 if successful, otherwise an OFPERR_* value. |
10402 | * | |
10403 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
10404 | * the valid range of mask. | |
10405 | * | |
10406 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
10407 | * supported.*/ | |
98090482 | 10408 | enum ofperr |
a930d4c5 | 10409 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 10410 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 10411 | struct ofputil_async_cfg *ac) |
98090482 | 10412 | { |
0a2869d5 BP |
10413 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10414 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
98090482 NR |
10415 | |
10416 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
10417 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
10418 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
10419 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
10420 | ||
5876b4db | 10421 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
10422 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
10423 | oh->version, ac); | |
10424 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
10425 | oh->version, ac); | |
10426 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
10427 | oh->version, ac); | |
98090482 | 10428 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
10429 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
10430 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 10431 | *ac = *basis; |
98090482 | 10432 | while (b.size > 0) { |
98090482 NR |
10433 | struct ofpbuf property; |
10434 | enum ofperr error; | |
34a543e3 | 10435 | uint64_t type; |
98090482 | 10436 | |
34a543e3 | 10437 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
10438 | if (error) { |
10439 | return error; | |
10440 | } | |
10441 | ||
8fd0bb60 BP |
10442 | const struct ofp14_async_prop *ap |
10443 | = get_ofp14_async_config_prop_by_prop_type(type); | |
10444 | error = (ap | |
10445 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
10446 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 10447 | if (error) { |
8fd0bb60 BP |
10448 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
10449 | * knows why, it's OpenFlow. */ | |
10450 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
10451 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 10452 | } |
98090482 NR |
10453 | return error; |
10454 | } | |
10455 | } | |
10456 | } else { | |
10457 | return OFPERR_OFPBRC_BAD_VERSION; | |
10458 | } | |
10459 | return 0; | |
10460 | } | |
10461 | ||
8fd0bb60 BP |
10462 | static void |
10463 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
10464 | enum ofputil_async_msg_type oam, | |
10465 | enum ofp_version version, | |
10466 | ovs_be32 masks[2]) | |
98090482 | 10467 | { |
8fd0bb60 BP |
10468 | for (int i = 0; i < 2; i++) { |
10469 | bool master = i == 0; | |
10470 | const struct ofp14_async_prop *ap | |
10471 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10472 | masks[i] = encode_async_mask(ac, ap, version); | |
10473 | } | |
10474 | } | |
98090482 | 10475 | |
8fd0bb60 BP |
10476 | static void |
10477 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
10478 | struct ofpbuf *buf, bool tlv, | |
10479 | enum ofp_version version, uint32_t oams) | |
10480 | { | |
10481 | if (!tlv) { | |
10482 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
10483 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
10484 | msg->packet_in_mask); | |
10485 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
10486 | msg->port_status_mask); | |
10487 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
10488 | msg->flow_removed_mask); | |
10489 | } else { | |
10490 | FOR_EACH_ASYNC_PROP (ap) { | |
10491 | if (oams & (1u << ap->oam)) { | |
10492 | size_t ofs = buf->size; | |
10493 | ofpprop_put_be32(buf, ap->prop_type, | |
10494 | encode_async_mask(ac, ap, version)); | |
10495 | ||
10496 | /* For experimenter properties, we need to use type 0xfffe for | |
10497 | * master and 0xffff for slaves. */ | |
10498 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10499 | struct ofp_prop_experimenter *ope | |
10500 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
10501 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
10502 | } | |
10503 | } | |
98090482 | 10504 | } |
98090482 | 10505 | } |
98090482 NR |
10506 | } |
10507 | ||
8fd0bb60 BP |
10508 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
10509 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 10510 | struct ofpbuf * |
af7bc161 BP |
10511 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
10512 | const struct ofputil_async_cfg *ac) | |
98090482 NR |
10513 | { |
10514 | struct ofpbuf *buf; | |
98090482 | 10515 | |
8fd0bb60 BP |
10516 | enum ofpraw raw = (oh->version < OFP14_VERSION |
10517 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
10518 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
10519 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
10520 | ofputil_put_async_config__(ac, reply, | |
10521 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
10522 | oh->version, UINT32_MAX); | |
10523 | return reply; | |
98090482 NR |
10524 | |
10525 | return buf; | |
10526 | } | |
a930d4c5 | 10527 | |
af7bc161 BP |
10528 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
10529 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
10530 | * | |
10531 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
10532 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
10533 | * messages, so more messages than requested may be configured. OF1.0 through | |
10534 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
10535 | * any extensions then this function encodes an Open vSwitch extension message | |
10536 | * that does support configuring OVS extension OAM_*. */ | |
10537 | struct ofpbuf * | |
10538 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
10539 | uint32_t oams, enum ofp_version ofp_version) | |
10540 | { | |
10541 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
10542 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
10543 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
10544 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
10545 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
10546 | ofputil_put_async_config__(ac, request, | |
10547 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
10548 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
10549 | ofp_version, oams); | |
10550 | return request; | |
10551 | } | |
10552 | ||
a930d4c5 BP |
10553 | struct ofputil_async_cfg |
10554 | ofputil_async_cfg_default(enum ofp_version version) | |
10555 | { | |
9bfe9334 BP |
10556 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
10557 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
10558 | * introduced in OF1.0, breaking it into more specific categories. When we | |
10559 | * encode these for earlier OpenFlow versions, we translate them into | |
10560 | * OFPR_ACTION. */ | |
10561 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
10562 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
10563 | if (version <= OFP12_VERSION) { | |
10564 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
10565 | } | |
10566 | ||
a930d4c5 | 10567 | return (struct ofputil_async_cfg) { |
9bfe9334 | 10568 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
10569 | |
10570 | .master[OAM_FLOW_REMOVED] | |
10571 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
10572 | ||
10573 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
10574 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
10575 | }; | |
10576 | } | |
6c6eedc5 SJ |
10577 | |
10578 | static void | |
10579 | ofputil_put_ofp14_table_desc(const struct ofputil_table_desc *td, | |
10580 | struct ofpbuf *b, enum ofp_version version) | |
10581 | { | |
10582 | struct ofp14_table_desc *otd; | |
10583 | struct ofp14_table_mod_prop_vacancy *otv; | |
10584 | size_t start_otd; | |
10585 | ||
10586 | start_otd = b->size; | |
10587 | ofpbuf_put_zeros(b, sizeof *otd); | |
10588 | ||
10589 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, td->eviction_flags); | |
10590 | ||
10591 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
10592 | otv->type = htons(OFPTMPT14_VACANCY); | |
10593 | otv->length = htons(sizeof *otv); | |
10594 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
10595 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
10596 | otv->vacancy = td->table_vacancy.vacancy; | |
10597 | ||
10598 | otd = ofpbuf_at_assert(b, start_otd, sizeof *otd); | |
10599 | otd->length = htons(b->size - start_otd); | |
10600 | otd->table_id = td->table_id; | |
10601 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
10602 | td->eviction, td->vacancy, | |
10603 | version); | |
10604 | } | |
10605 | ||
10606 | /* Converts the abstract form of a "table status" message in '*ts' into an | |
10607 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
10608 | * a buffer owned by the caller. */ | |
10609 | struct ofpbuf * | |
10610 | ofputil_encode_table_status(const struct ofputil_table_status *ts, | |
10611 | enum ofputil_protocol protocol) | |
10612 | { | |
10613 | enum ofp_version version; | |
10614 | struct ofpbuf *b; | |
10615 | ||
10616 | version = ofputil_protocol_to_ofp_version(protocol); | |
10617 | if (version >= OFP14_VERSION) { | |
10618 | enum ofpraw raw; | |
10619 | struct ofp14_table_status *ots; | |
10620 | ||
10621 | raw = OFPRAW_OFPT14_TABLE_STATUS; | |
10622 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
10623 | ots = ofpbuf_put_zeros(b, sizeof *ots); | |
10624 | ots->reason = ts->reason; | |
10625 | ofputil_put_ofp14_table_desc(&ts->desc, b, version); | |
10626 | ofpmsg_update_length(b); | |
10627 | return b; | |
10628 | } else { | |
10629 | return NULL; | |
10630 | } | |
10631 | } | |
10632 | ||
10633 | /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form | |
10634 | * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
10635 | enum ofperr | |
10636 | ofputil_decode_table_status(const struct ofp_header *oh, | |
10637 | struct ofputil_table_status *ts) | |
10638 | { | |
10639 | const struct ofp14_table_status *ots; | |
10640 | struct ofpbuf b; | |
10641 | enum ofperr error; | |
10642 | enum ofpraw raw; | |
10643 | ||
10644 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
10645 | raw = ofpraw_pull_assert(&b); | |
10646 | ots = ofpbuf_pull(&b, sizeof *ots); | |
10647 | ||
10648 | if (raw == OFPRAW_OFPT14_TABLE_STATUS) { | |
10649 | if (ots->reason != OFPTR_VACANCY_DOWN | |
10650 | && ots->reason != OFPTR_VACANCY_UP) { | |
10651 | return OFPERR_OFPBPC_BAD_VALUE; | |
10652 | } | |
10653 | ts->reason = ots->reason; | |
10654 | ||
10655 | error = ofputil_decode_table_desc(&b, &ts->desc, oh->version); | |
10656 | return error; | |
10657 | } else { | |
10658 | return OFPERR_OFPBRC_BAD_VERSION; | |
10659 | } | |
10660 | ||
10661 | return 0; | |
10662 | } |