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fa37b408 | 1 | /* |
c37c0382 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 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> | |
18 | #include "ofp-print.h" | |
03e1125c | 19 | #include <ctype.h> |
dc4762ed | 20 | #include <errno.h> |
fa37b408 | 21 | #include <inttypes.h> |
6ca00f6f ETN |
22 | #include <sys/types.h> |
23 | #include <netinet/in.h> | |
b459a924 | 24 | #include <netinet/icmp6.h> |
fa37b408 | 25 | #include <stdlib.h> |
daff3353 | 26 | #include "bundle.h" |
10a24935 | 27 | #include "byte-order.h" |
d8ae4d67 | 28 | #include "classifier.h" |
dc4762ed | 29 | #include "dynamic-string.h" |
75a75043 | 30 | #include "learn.h" |
816fd533 | 31 | #include "meta-flow.h" |
9e1fd49b | 32 | #include "multipath.h" |
6c038611 | 33 | #include "netdev.h" |
b6c9e612 | 34 | #include "nx-match.h" |
f25d0cf3 | 35 | #include "ofp-actions.h" |
dc4762ed | 36 | #include "ofp-errors.h" |
982697a4 | 37 | #include "ofp-msgs.h" |
fa37b408 BP |
38 | #include "ofp-util.h" |
39 | #include "ofpbuf.h" | |
40 | #include "packets.h" | |
41 | #include "random.h" | |
4ffd1b43 | 42 | #include "unaligned.h" |
e41a9130 | 43 | #include "type-props.h" |
5136ce49 | 44 | #include "vlog.h" |
5deff5aa | 45 | #include "bitmap.h" |
fa37b408 | 46 | |
d98e6007 | 47 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
48 | |
49 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
50 | * in the peer and so there's not much point in showing a lot of them. */ | |
51 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
52 | ||
0596e897 BP |
53 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
54 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
55 | * is wildcarded. | |
56 | * | |
57 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
58 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
59 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
60 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
61 | * wildcarded. */ | |
62 | ovs_be32 | |
63 | ofputil_wcbits_to_netmask(int wcbits) | |
64 | { | |
65 | wcbits &= 0x3f; | |
66 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
67 | } | |
68 | ||
69 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
70 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
71 | * between 0 and 32 inclusive. | |
72 | * | |
73 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
74 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
75 | int |
76 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
77 | { | |
aad29cd1 | 78 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
79 | } |
80 | ||
eec25dc1 | 81 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 82 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
83 | * responsibility to handle the special case where the flow match's dl_vlan is |
84 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 85 | void |
eec25dc1 | 86 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 87 | { |
a79f29f2 | 88 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 25); |
a877206f | 89 | |
81a76618 | 90 | /* Initialize most of wc. */ |
f9ba8dad | 91 | flow_wildcards_init_catchall(wc); |
bad68a99 | 92 | |
0bdc4bec | 93 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 94 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 95 | } |
5d9499c4 BP |
96 | |
97 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 98 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 99 | } |
7257b535 | 100 | |
851d3105 | 101 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 102 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 103 | } |
26720e24 BP |
104 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
105 | >> OFPFW10_NW_SRC_SHIFT); | |
106 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
107 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 108 | |
eec25dc1 | 109 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 110 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 111 | } |
eec25dc1 | 112 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 113 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
114 | } |
115 | ||
eec25dc1 | 116 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
26720e24 | 117 | memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN); |
73c0ce34 | 118 | } |
eec25dc1 | 119 | if (!(ofpfw & OFPFW10_DL_DST)) { |
26720e24 | 120 | memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN); |
d8ae4d67 | 121 | } |
e2170cff | 122 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 123 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 124 | } |
d8ae4d67 | 125 | |
eb6f28db | 126 | /* VLAN TCI mask. */ |
eec25dc1 | 127 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 128 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 129 | } |
eec25dc1 | 130 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 131 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
132 | } |
133 | } | |
134 | ||
81a76618 | 135 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 136 | void |
81a76618 BP |
137 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
138 | struct match *match) | |
139 | { | |
140 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
141 | ||
142 | /* Initialize match->wc. */ | |
296e07ac | 143 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
144 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
145 | ||
146 | /* Initialize most of match->flow. */ | |
147 | match->flow.nw_src = ofmatch->nw_src; | |
148 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 149 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
150 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
151 | match->flow.tp_src = ofmatch->tp_src; | |
152 | match->flow.tp_dst = ofmatch->tp_dst; | |
153 | memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN); | |
154 | memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN); | |
155 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; | |
156 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 157 | |
66642cb4 | 158 | /* Translate VLANs. */ |
0c436519 | 159 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 160 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
161 | /* Match only packets without 802.1Q header. |
162 | * | |
eec25dc1 | 163 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 164 | * |
eec25dc1 | 165 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
166 | * because we can't have a specific PCP without an 802.1Q header. |
167 | * However, older versions of OVS treated this as matching packets | |
168 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
169 | match->flow.vlan_tci = htons(0); |
170 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
171 | } else { |
172 | ovs_be16 vid, pcp, tci; | |
bf062576 | 173 | uint16_t hpcp; |
47271d0d | 174 | |
81a76618 | 175 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
176 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
177 | pcp = htons(hpcp); | |
47271d0d | 178 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 179 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
180 | } |
181 | ||
d8ae4d67 | 182 | /* Clean up. */ |
81a76618 | 183 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
184 | } |
185 | ||
81a76618 | 186 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 187 | void |
81a76618 BP |
188 | ofputil_match_to_ofp10_match(const struct match *match, |
189 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 190 | { |
81a76618 | 191 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 192 | uint32_t ofpfw; |
d8ae4d67 | 193 | |
66642cb4 | 194 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 195 | ofpfw = 0; |
4e022ec0 | 196 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
197 | ofpfw |= OFPFW10_IN_PORT; |
198 | } | |
26720e24 | 199 | if (!wc->masks.dl_type) { |
27cafc5f BP |
200 | ofpfw |= OFPFW10_DL_TYPE; |
201 | } | |
26720e24 | 202 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
203 | ofpfw |= OFPFW10_NW_PROTO; |
204 | } | |
26720e24 | 205 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 206 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 207 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 208 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 209 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 210 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 211 | } |
26720e24 | 212 | if (!wc->masks.tp_src) { |
eec25dc1 | 213 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 214 | } |
26720e24 | 215 | if (!wc->masks.tp_dst) { |
eec25dc1 | 216 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 217 | } |
26720e24 | 218 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 219 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 220 | } |
26720e24 | 221 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 222 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 223 | } |
ff9d3826 | 224 | |
66642cb4 | 225 | /* Translate VLANs. */ |
81a76618 BP |
226 | ofmatch->dl_vlan = htons(0); |
227 | ofmatch->dl_vlan_pcp = 0; | |
228 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 229 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
230 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
231 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
232 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
41ca9a1e | 233 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 234 | } else { |
81a76618 | 235 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 236 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 237 | } else { |
81a76618 | 238 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
239 | } |
240 | ||
81a76618 | 241 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 242 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 243 | } else { |
81a76618 | 244 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
245 | } |
246 | } | |
247 | ||
248 | /* Compose most of the match structure. */ | |
81a76618 | 249 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 250 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
81a76618 BP |
251 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
252 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); | |
253 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); | |
254 | ofmatch->nw_src = match->flow.nw_src; | |
255 | ofmatch->nw_dst = match->flow.nw_dst; | |
256 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
257 | ofmatch->nw_proto = match->flow.nw_proto; | |
258 | ofmatch->tp_src = match->flow.tp_src; | |
259 | ofmatch->tp_dst = match->flow.tp_dst; | |
260 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
261 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
262 | } |
263 | ||
aa319503 | 264 | enum ofperr |
81a76618 BP |
265 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
266 | uint16_t *padded_match_len) | |
aa319503 | 267 | { |
36a16881 SH |
268 | struct ofp11_match_header *omh = buf->data; |
269 | uint16_t match_len; | |
aa319503 | 270 | |
36a16881 | 271 | if (buf->size < sizeof *omh) { |
aa319503 BP |
272 | return OFPERR_OFPBMC_BAD_LEN; |
273 | } | |
274 | ||
36a16881 SH |
275 | match_len = ntohs(omh->length); |
276 | ||
aa319503 | 277 | switch (ntohs(omh->type)) { |
36a16881 SH |
278 | case OFPMT_STANDARD: { |
279 | struct ofp11_match *om; | |
280 | ||
281 | if (match_len != sizeof *om || buf->size < sizeof *om) { | |
aa319503 BP |
282 | return OFPERR_OFPBMC_BAD_LEN; |
283 | } | |
284 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
285 | if (padded_match_len) { |
286 | *padded_match_len = match_len; | |
287 | } | |
81a76618 | 288 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
289 | } |
290 | ||
291 | case OFPMT_OXM: | |
292 | if (padded_match_len) { | |
293 | *padded_match_len = ROUND_UP(match_len, 8); | |
294 | } | |
81a76618 | 295 | return oxm_pull_match(buf, match); |
aa319503 BP |
296 | |
297 | default: | |
298 | return OFPERR_OFPBMC_BAD_TYPE; | |
299 | } | |
300 | } | |
301 | ||
3f0f48cf YT |
302 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
303 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 304 | enum ofperr |
81a76618 BP |
305 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
306 | struct match *match) | |
410698cf | 307 | { |
81a76618 | 308 | uint16_t wc = ntohl(ofmatch->wildcards); |
410698cf BP |
309 | uint8_t dl_src_mask[ETH_ADDR_LEN]; |
310 | uint8_t dl_dst_mask[ETH_ADDR_LEN]; | |
8087f5ff | 311 | bool ipv4, arp, rarp; |
410698cf BP |
312 | int i; |
313 | ||
81a76618 | 314 | match_init_catchall(match); |
410698cf BP |
315 | |
316 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 317 | ofp_port_t ofp_port; |
410698cf BP |
318 | enum ofperr error; |
319 | ||
81a76618 | 320 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
321 | if (error) { |
322 | return OFPERR_OFPBMC_BAD_VALUE; | |
323 | } | |
81a76618 | 324 | match_set_in_port(match, ofp_port); |
410698cf BP |
325 | } |
326 | ||
327 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 328 | dl_src_mask[i] = ~ofmatch->dl_src_mask[i]; |
410698cf | 329 | } |
81a76618 | 330 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); |
410698cf BP |
331 | |
332 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 333 | dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i]; |
410698cf | 334 | } |
81a76618 | 335 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); |
410698cf BP |
336 | |
337 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 338 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 339 | /* Match only packets without a VLAN tag. */ |
81a76618 | 340 | match->flow.vlan_tci = htons(0); |
b8266395 | 341 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 342 | } else { |
81a76618 | 343 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 344 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
345 | match->flow.vlan_tci = htons(VLAN_CFI); |
346 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
347 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 348 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
349 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
350 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
351 | } else { |
352 | /* Invalid VID. */ | |
353 | return OFPERR_OFPBMC_BAD_VALUE; | |
354 | } | |
355 | ||
356 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
357 | if (ofmatch->dl_vlan_pcp <= 7) { |
358 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
359 | << VLAN_PCP_SHIFT); | |
360 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
361 | } else { |
362 | /* Invalid PCP. */ | |
363 | return OFPERR_OFPBMC_BAD_VALUE; | |
364 | } | |
365 | } | |
366 | } | |
367 | } | |
368 | ||
369 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
370 | match_set_dl_type(match, |
371 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
372 | } |
373 | ||
81a76618 BP |
374 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
375 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 376 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
377 | |
378 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 379 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
380 | /* Invalid TOS. */ |
381 | return OFPERR_OFPBMC_BAD_VALUE; | |
382 | } | |
383 | ||
81a76618 | 384 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
385 | } |
386 | ||
8087f5ff | 387 | if (ipv4 || arp || rarp) { |
410698cf | 388 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 389 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 390 | } |
81a76618 BP |
391 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
392 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
393 | } |
394 | ||
395 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
396 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 397 | switch (match->flow.nw_proto) { |
410698cf BP |
398 | case IPPROTO_ICMP: |
399 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
400 | * | |
401 | * The tp_src and tp_dst fields will be ignored unless the | |
402 | * network protocol specified is as TCP, UDP or SCTP. | |
403 | * | |
404 | * but I'm pretty sure we should support ICMP too, otherwise | |
405 | * that's a regression from OF1.0. */ | |
406 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 407 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 408 | if (icmp_type < 0x100) { |
81a76618 | 409 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
410 | } else { |
411 | return OFPERR_OFPBMC_BAD_FIELD; | |
412 | } | |
413 | } | |
414 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 415 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 416 | if (icmp_code < 0x100) { |
81a76618 | 417 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
418 | } else { |
419 | return OFPERR_OFPBMC_BAD_FIELD; | |
420 | } | |
421 | } | |
422 | break; | |
423 | ||
424 | case IPPROTO_TCP: | |
425 | case IPPROTO_UDP: | |
0d56eaf2 | 426 | case IPPROTO_SCTP: |
410698cf | 427 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 428 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
429 | } |
430 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 431 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
432 | } |
433 | break; | |
434 | ||
410698cf BP |
435 | default: |
436 | /* OF1.1 says explicitly to ignore this. */ | |
437 | break; | |
438 | } | |
439 | } | |
440 | ||
b02475c5 | 441 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 442 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 443 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
444 | } |
445 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 446 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
447 | } |
448 | } | |
449 | ||
81a76618 BP |
450 | match_set_metadata_masked(match, ofmatch->metadata, |
451 | ~ofmatch->metadata_mask); | |
410698cf BP |
452 | |
453 | return 0; | |
454 | } | |
455 | ||
81a76618 | 456 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 457 | void |
81a76618 BP |
458 | ofputil_match_to_ofp11_match(const struct match *match, |
459 | struct ofp11_match *ofmatch) | |
410698cf BP |
460 | { |
461 | uint32_t wc = 0; | |
462 | int i; | |
463 | ||
81a76618 BP |
464 | memset(ofmatch, 0, sizeof *ofmatch); |
465 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
466 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 467 | |
4e022ec0 | 468 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
469 | wc |= OFPFW11_IN_PORT; |
470 | } else { | |
4e022ec0 | 471 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
472 | } |
473 | ||
81a76618 | 474 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
410698cf | 475 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 476 | ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i]; |
410698cf BP |
477 | } |
478 | ||
81a76618 | 479 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); |
410698cf | 480 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 481 | ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i]; |
410698cf BP |
482 | } |
483 | ||
81a76618 | 484 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 485 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
486 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
487 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
488 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
489 | wc |= OFPFW11_DL_VLAN_PCP; |
490 | } else { | |
81a76618 BP |
491 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
492 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 493 | } else { |
81a76618 | 494 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
495 | } |
496 | ||
81a76618 | 497 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
498 | wc |= OFPFW11_DL_VLAN_PCP; |
499 | } else { | |
81a76618 | 500 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
501 | } |
502 | } | |
503 | ||
81a76618 | 504 | if (!match->wc.masks.dl_type) { |
410698cf BP |
505 | wc |= OFPFW11_DL_TYPE; |
506 | } else { | |
81a76618 | 507 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
508 | } |
509 | ||
81a76618 | 510 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
511 | wc |= OFPFW11_NW_TOS; |
512 | } else { | |
81a76618 | 513 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
514 | } |
515 | ||
81a76618 | 516 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
517 | wc |= OFPFW11_NW_PROTO; |
518 | } else { | |
81a76618 | 519 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
520 | } |
521 | ||
81a76618 BP |
522 | ofmatch->nw_src = match->flow.nw_src; |
523 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
524 | ofmatch->nw_dst = match->flow.nw_dst; | |
525 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 526 | |
81a76618 | 527 | if (!match->wc.masks.tp_src) { |
410698cf BP |
528 | wc |= OFPFW11_TP_SRC; |
529 | } else { | |
81a76618 | 530 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
531 | } |
532 | ||
81a76618 | 533 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
534 | wc |= OFPFW11_TP_DST; |
535 | } else { | |
81a76618 | 536 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
537 | } |
538 | ||
8bfd0fda | 539 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
540 | wc |= OFPFW11_MPLS_LABEL; |
541 | } else { | |
8bfd0fda BP |
542 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
543 | match->flow.mpls_lse[0])); | |
097d4939 JR |
544 | } |
545 | ||
8bfd0fda | 546 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
547 | wc |= OFPFW11_MPLS_TC; |
548 | } else { | |
8bfd0fda | 549 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 550 | } |
410698cf | 551 | |
81a76618 BP |
552 | ofmatch->metadata = match->flow.metadata; |
553 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 554 | |
81a76618 | 555 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
556 | } |
557 | ||
75fa58f8 BP |
558 | /* Returns the "typical" length of a match for 'protocol', for use in |
559 | * estimating space to preallocate. */ | |
560 | int | |
561 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
562 | { | |
563 | switch (protocol) { | |
564 | case OFPUTIL_P_OF10_STD: | |
565 | case OFPUTIL_P_OF10_STD_TID: | |
566 | return sizeof(struct ofp10_match); | |
567 | ||
568 | case OFPUTIL_P_OF10_NXM: | |
569 | case OFPUTIL_P_OF10_NXM_TID: | |
570 | return NXM_TYPICAL_LEN; | |
571 | ||
572 | case OFPUTIL_P_OF11_STD: | |
573 | return sizeof(struct ofp11_match); | |
574 | ||
575 | case OFPUTIL_P_OF12_OXM: | |
576 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 577 | case OFPUTIL_P_OF14_OXM: |
75fa58f8 BP |
578 | return NXM_TYPICAL_LEN; |
579 | ||
580 | default: | |
428b2edd | 581 | OVS_NOT_REACHED(); |
75fa58f8 BP |
582 | } |
583 | } | |
584 | ||
585 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
586 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
587 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
588 | * in OpenFlow 1.1 or later. | |
589 | * | |
590 | * This function can cause 'b''s data to be reallocated. | |
591 | * | |
592 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
593 | * returns zero. */ | |
594 | int | |
595 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
596 | enum ofputil_protocol protocol) | |
597 | { | |
598 | switch (protocol) { | |
599 | case OFPUTIL_P_OF10_STD: | |
600 | case OFPUTIL_P_OF10_STD_TID: | |
601 | case OFPUTIL_P_OF10_NXM: | |
602 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 603 | OVS_NOT_REACHED(); |
75fa58f8 BP |
604 | |
605 | case OFPUTIL_P_OF11_STD: { | |
606 | struct ofp11_match *om; | |
607 | ||
608 | /* Make sure that no padding is needed. */ | |
609 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
610 | ||
611 | om = ofpbuf_put_uninit(b, sizeof *om); | |
612 | ofputil_match_to_ofp11_match(match, om); | |
613 | return sizeof *om; | |
614 | } | |
615 | ||
616 | case OFPUTIL_P_OF12_OXM: | |
617 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 618 | case OFPUTIL_P_OF14_OXM: |
75fa58f8 BP |
619 | return oxm_put_match(b, match); |
620 | } | |
621 | ||
428b2edd | 622 | OVS_NOT_REACHED(); |
75fa58f8 BP |
623 | } |
624 | ||
36956a7d | 625 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
626 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
627 | * structure. */ | |
36956a7d BP |
628 | ovs_be16 |
629 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
630 | { | |
631 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
632 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
633 | : flow_dl_type); | |
634 | } | |
635 | ||
eec25dc1 | 636 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
637 | * structure, returns the corresponding 'dl_type' value for use in struct |
638 | * flow. */ | |
639 | ovs_be16 | |
640 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
641 | { | |
642 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
643 | ? htons(FLOW_DL_TYPE_NONE) | |
644 | : ofp_dl_type); | |
645 | } | |
2e4f5fcf | 646 | \f |
27527aa0 | 647 | /* Protocols. */ |
7fa91113 | 648 | |
27527aa0 BP |
649 | struct proto_abbrev { |
650 | enum ofputil_protocol protocol; | |
651 | const char *name; | |
652 | }; | |
653 | ||
654 | /* Most users really don't care about some of the differences between | |
ecb229be BP |
655 | * protocols. These abbreviations help with that. |
656 | * | |
657 | * Until it is safe to use the OpenFlow 1.4 protocol (which currently can | |
658 | * cause aborts due to unimplemented features), we omit OpenFlow 1.4 from all | |
659 | * abbrevations. */ | |
27527aa0 | 660 | static const struct proto_abbrev proto_abbrevs[] = { |
ecb229be BP |
661 | { OFPUTIL_P_ANY & ~OFPUTIL_P_OF14_OXM, "any" }, |
662 | { OFPUTIL_P_OF10_STD_ANY & ~OFPUTIL_P_OF14_OXM, "OpenFlow10" }, | |
663 | { OFPUTIL_P_OF10_NXM_ANY & ~OFPUTIL_P_OF14_OXM, "NXM" }, | |
664 | { OFPUTIL_P_ANY_OXM & ~OFPUTIL_P_OF14_OXM, "OXM" }, | |
27527aa0 BP |
665 | }; |
666 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
667 | ||
668 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
c37c0382 | 669 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 670 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 671 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 672 | OFPUTIL_P_OF11_STD, |
85813857 BP |
673 | OFPUTIL_P_OF10_NXM, |
674 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
675 | }; |
676 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
677 | ||
4f13da56 BP |
678 | /* Returns the set of ofputil_protocols that are supported with the given |
679 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
680 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
681 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 682 | enum ofputil_protocol |
4f13da56 | 683 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
684 | { |
685 | switch (version) { | |
2e3fa633 | 686 | case OFP10_VERSION: |
4f13da56 | 687 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
688 | case OFP11_VERSION: |
689 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 690 | case OFP12_VERSION: |
85813857 | 691 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
692 | case OFP13_VERSION: |
693 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
694 | case OFP14_VERSION: |
695 | return OFPUTIL_P_OF14_OXM; | |
2e3fa633 SH |
696 | default: |
697 | return 0; | |
27527aa0 BP |
698 | } |
699 | } | |
700 | ||
4f13da56 BP |
701 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
702 | * connection that has negotiated the given 'version'. 'version' should | |
703 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
704 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
705 | * outside the valid range. */ | |
706 | enum ofputil_protocol | |
707 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
708 | { | |
709 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
710 | } | |
711 | ||
44d3732d | 712 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 713 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 714 | enum ofp_version |
9e1fd49b BP |
715 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
716 | { | |
717 | switch (protocol) { | |
85813857 BP |
718 | case OFPUTIL_P_OF10_STD: |
719 | case OFPUTIL_P_OF10_STD_TID: | |
720 | case OFPUTIL_P_OF10_NXM: | |
721 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 722 | return OFP10_VERSION; |
75fa58f8 BP |
723 | case OFPUTIL_P_OF11_STD: |
724 | return OFP11_VERSION; | |
85813857 | 725 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 726 | return OFP12_VERSION; |
2e1ae200 JR |
727 | case OFPUTIL_P_OF13_OXM: |
728 | return OFP13_VERSION; | |
c37c0382 AC |
729 | case OFPUTIL_P_OF14_OXM: |
730 | return OFP14_VERSION; | |
9e1fd49b BP |
731 | } |
732 | ||
428b2edd | 733 | OVS_NOT_REACHED(); |
9e1fd49b BP |
734 | } |
735 | ||
4f13da56 BP |
736 | /* Returns a bitmap of OpenFlow versions that are supported by at |
737 | * least one of the 'protocols'. */ | |
738 | uint32_t | |
739 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
740 | { | |
741 | uint32_t bitmap = 0; | |
742 | ||
743 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
744 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
745 | ||
746 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
747 | } | |
748 | ||
749 | return bitmap; | |
750 | } | |
751 | ||
752 | /* Returns the set of protocols that are supported on top of the | |
753 | * OpenFlow versions included in 'bitmap'. */ | |
754 | enum ofputil_protocol | |
755 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
756 | { | |
757 | enum ofputil_protocol protocols = 0; | |
758 | ||
759 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
760 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
761 | ||
762 | protocols |= ofputil_protocols_from_ofp_version(version); | |
763 | } | |
764 | ||
765 | return protocols; | |
766 | } | |
767 | ||
27527aa0 BP |
768 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
769 | * otherwise. */ | |
7fa91113 | 770 | bool |
27527aa0 | 771 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 772 | { |
27527aa0 BP |
773 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
774 | } | |
775 | ||
776 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
777 | * extension turned on or off if 'enable' is true or false, respectively. | |
778 | * | |
779 | * This extension is only useful for protocols whose "standard" version does | |
780 | * not allow specific tables to be modified. In particular, this is true of | |
781 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
782 | * specifies a table ID and so there is no need for such an extension. When | |
783 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
784 | * extension, this function just returns its 'protocol' argument unchanged | |
785 | * regardless of the value of 'enable'. */ | |
786 | enum ofputil_protocol | |
787 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
788 | { | |
789 | switch (protocol) { | |
85813857 BP |
790 | case OFPUTIL_P_OF10_STD: |
791 | case OFPUTIL_P_OF10_STD_TID: | |
792 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 793 | |
85813857 BP |
794 | case OFPUTIL_P_OF10_NXM: |
795 | case OFPUTIL_P_OF10_NXM_TID: | |
796 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 797 | |
75fa58f8 BP |
798 | case OFPUTIL_P_OF11_STD: |
799 | return OFPUTIL_P_OF11_STD; | |
800 | ||
85813857 BP |
801 | case OFPUTIL_P_OF12_OXM: |
802 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 803 | |
2e1ae200 JR |
804 | case OFPUTIL_P_OF13_OXM: |
805 | return OFPUTIL_P_OF13_OXM; | |
806 | ||
c37c0382 AC |
807 | case OFPUTIL_P_OF14_OXM: |
808 | return OFPUTIL_P_OF14_OXM; | |
809 | ||
27527aa0 | 810 | default: |
428b2edd | 811 | OVS_NOT_REACHED(); |
7fa91113 | 812 | } |
27527aa0 | 813 | } |
7fa91113 | 814 | |
27527aa0 BP |
815 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
816 | * some extension to a standard protocol version, the return value is the | |
817 | * standard version of that protocol without any extension. If 'protocol' is a | |
818 | * standard protocol version, returns 'protocol' unchanged. */ | |
819 | enum ofputil_protocol | |
820 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
821 | { | |
822 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
823 | } |
824 | ||
27527aa0 BP |
825 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
826 | enum ofputil_protocol | |
827 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
828 | enum ofputil_protocol new_base) | |
7fa91113 | 829 | { |
27527aa0 BP |
830 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
831 | ||
832 | switch (new_base) { | |
85813857 BP |
833 | case OFPUTIL_P_OF10_STD: |
834 | case OFPUTIL_P_OF10_STD_TID: | |
835 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 836 | |
85813857 BP |
837 | case OFPUTIL_P_OF10_NXM: |
838 | case OFPUTIL_P_OF10_NXM_TID: | |
839 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 840 | |
75fa58f8 BP |
841 | case OFPUTIL_P_OF11_STD: |
842 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
843 | ||
85813857 BP |
844 | case OFPUTIL_P_OF12_OXM: |
845 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 846 | |
2e1ae200 JR |
847 | case OFPUTIL_P_OF13_OXM: |
848 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
849 | ||
c37c0382 AC |
850 | case OFPUTIL_P_OF14_OXM: |
851 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
852 | ||
7fa91113 | 853 | default: |
428b2edd | 854 | OVS_NOT_REACHED(); |
7fa91113 BP |
855 | } |
856 | } | |
857 | ||
27527aa0 BP |
858 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
859 | * 'protocol' is either a single protocol or it is a combination of protocols | |
860 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
861 | const char * | |
862 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 863 | { |
27527aa0 BP |
864 | const struct proto_abbrev *p; |
865 | ||
866 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
867 | * warning if we forget any. */ | |
868 | switch (protocol) { | |
85813857 | 869 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
870 | return "NXM-table_id"; |
871 | ||
85813857 | 872 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
873 | return "NXM+table_id"; |
874 | ||
85813857 | 875 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
876 | return "OpenFlow10-table_id"; |
877 | ||
85813857 | 878 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 879 | return "OpenFlow10+table_id"; |
44d3732d | 880 | |
75fa58f8 BP |
881 | case OFPUTIL_P_OF11_STD: |
882 | return "OpenFlow11"; | |
883 | ||
85813857 | 884 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 885 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
886 | |
887 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 888 | return "OXM-OpenFlow13"; |
c37c0382 AC |
889 | |
890 | case OFPUTIL_P_OF14_OXM: | |
891 | return "OXM-OpenFlow14"; | |
27527aa0 BP |
892 | } |
893 | ||
894 | /* Check abbreviations. */ | |
895 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
896 | if (protocol == p->protocol) { | |
897 | return p->name; | |
898 | } | |
899 | } | |
900 | ||
901 | return NULL; | |
902 | } | |
903 | ||
904 | /* Returns a string that represents 'protocols'. The return value might be a | |
905 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
906 | * value is "none" if 'protocols' is 0. | |
907 | * | |
908 | * The caller must free the returned string (with free()). */ | |
909 | char * | |
910 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
911 | { | |
912 | struct ds s; | |
913 | ||
cb22974d | 914 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
915 | if (protocols == 0) { |
916 | return xstrdup("none"); | |
917 | } | |
918 | ||
919 | ds_init(&s); | |
920 | while (protocols) { | |
921 | const struct proto_abbrev *p; | |
922 | int i; | |
923 | ||
924 | if (s.length) { | |
925 | ds_put_char(&s, ','); | |
926 | } | |
927 | ||
928 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
929 | if ((protocols & p->protocol) == p->protocol) { | |
930 | ds_put_cstr(&s, p->name); | |
931 | protocols &= ~p->protocol; | |
932 | goto match; | |
933 | } | |
934 | } | |
935 | ||
936 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
937 | enum ofputil_protocol bit = 1u << i; | |
938 | ||
939 | if (protocols & bit) { | |
940 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
941 | protocols &= ~bit; | |
942 | goto match; | |
943 | } | |
944 | } | |
428b2edd | 945 | OVS_NOT_REACHED(); |
27527aa0 BP |
946 | |
947 | match: ; | |
948 | } | |
949 | return ds_steal_cstr(&s); | |
950 | } | |
951 | ||
952 | static enum ofputil_protocol | |
953 | ofputil_protocol_from_string__(const char *s, size_t n) | |
954 | { | |
955 | const struct proto_abbrev *p; | |
956 | int i; | |
957 | ||
958 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
959 | enum ofputil_protocol bit = 1u << i; | |
960 | const char *name = ofputil_protocol_to_string(bit); | |
961 | ||
962 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
963 | return bit; | |
964 | } | |
965 | } | |
966 | ||
967 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
968 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
969 | return p->protocol; | |
970 | } | |
971 | } | |
972 | ||
973 | return 0; | |
974 | } | |
975 | ||
976 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
977 | * single protocol name or abbreviation or a comma-separated list of them. | |
978 | * | |
979 | * Aborts the program with an error message if 's' is invalid. */ | |
980 | enum ofputil_protocol | |
981 | ofputil_protocols_from_string(const char *s) | |
982 | { | |
983 | const char *orig_s = s; | |
984 | enum ofputil_protocol protocols; | |
985 | ||
986 | protocols = 0; | |
987 | while (*s) { | |
988 | enum ofputil_protocol p; | |
989 | size_t n; | |
990 | ||
991 | n = strcspn(s, ","); | |
992 | if (n == 0) { | |
993 | s++; | |
994 | continue; | |
995 | } | |
996 | ||
997 | p = ofputil_protocol_from_string__(s, n); | |
998 | if (!p) { | |
999 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1000 | } | |
1001 | protocols |= p; | |
1002 | ||
1003 | s += n; | |
1004 | } | |
1005 | ||
1006 | if (!protocols) { | |
1007 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1008 | } | |
1009 | return protocols; | |
88ca35ee BP |
1010 | } |
1011 | ||
7beaa082 | 1012 | static int |
03e1125c SH |
1013 | ofputil_version_from_string(const char *s) |
1014 | { | |
1015 | if (!strcasecmp(s, "OpenFlow10")) { | |
1016 | return OFP10_VERSION; | |
1017 | } | |
1018 | if (!strcasecmp(s, "OpenFlow11")) { | |
1019 | return OFP11_VERSION; | |
1020 | } | |
1021 | if (!strcasecmp(s, "OpenFlow12")) { | |
1022 | return OFP12_VERSION; | |
1023 | } | |
2e1ae200 JR |
1024 | if (!strcasecmp(s, "OpenFlow13")) { |
1025 | return OFP13_VERSION; | |
1026 | } | |
c37c0382 AC |
1027 | if (!strcasecmp(s, "OpenFlow14")) { |
1028 | return OFP14_VERSION; | |
1029 | } | |
7beaa082 | 1030 | return 0; |
03e1125c SH |
1031 | } |
1032 | ||
1033 | static bool | |
e091ef84 | 1034 | is_delimiter(unsigned char c) |
03e1125c SH |
1035 | { |
1036 | return isspace(c) || c == ','; | |
1037 | } | |
1038 | ||
1039 | uint32_t | |
1040 | ofputil_versions_from_string(const char *s) | |
1041 | { | |
1042 | size_t i = 0; | |
1043 | uint32_t bitmap = 0; | |
1044 | ||
1045 | while (s[i]) { | |
1046 | size_t j; | |
7beaa082 | 1047 | int version; |
03e1125c SH |
1048 | char *key; |
1049 | ||
1050 | if (is_delimiter(s[i])) { | |
1051 | i++; | |
1052 | continue; | |
1053 | } | |
1054 | j = 0; | |
1055 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1056 | j++; | |
1057 | } | |
1058 | key = xmemdup0(s + i, j); | |
1059 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1060 | if (!version) { |
1061 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1062 | } | |
03e1125c SH |
1063 | free(key); |
1064 | bitmap |= 1u << version; | |
1065 | i += j; | |
1066 | } | |
1067 | ||
1068 | return bitmap; | |
1069 | } | |
1070 | ||
7beaa082 SH |
1071 | uint32_t |
1072 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1073 | { | |
1074 | uint32_t bitmap = 0; | |
1075 | ||
1076 | while (count--) { | |
1077 | int version = ofputil_version_from_string(s[count]); | |
1078 | if (!version) { | |
1079 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1080 | } else { | |
1081 | bitmap |= 1u << version; | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | return bitmap; | |
1086 | } | |
1087 | ||
03e1125c SH |
1088 | const char * |
1089 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1090 | { | |
1091 | switch (ofp_version) { | |
1092 | case OFP10_VERSION: | |
1093 | return "OpenFlow10"; | |
1094 | case OFP11_VERSION: | |
1095 | return "OpenFlow11"; | |
1096 | case OFP12_VERSION: | |
1097 | return "OpenFlow12"; | |
2e1ae200 JR |
1098 | case OFP13_VERSION: |
1099 | return "OpenFlow13"; | |
c37c0382 AC |
1100 | case OFP14_VERSION: |
1101 | return "OpenFlow14"; | |
03e1125c | 1102 | default: |
428b2edd | 1103 | OVS_NOT_REACHED(); |
03e1125c SH |
1104 | } |
1105 | } | |
1106 | ||
54834960 EJ |
1107 | bool |
1108 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1109 | { | |
1110 | switch (packet_in_format) { | |
1111 | case NXPIF_OPENFLOW10: | |
1112 | case NXPIF_NXM: | |
1113 | return true; | |
1114 | } | |
1115 | ||
1116 | return false; | |
1117 | } | |
1118 | ||
1119 | const char * | |
1120 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1121 | { | |
1122 | switch (packet_in_format) { | |
1123 | case NXPIF_OPENFLOW10: | |
1124 | return "openflow10"; | |
1125 | case NXPIF_NXM: | |
1126 | return "nxm"; | |
1127 | default: | |
428b2edd | 1128 | OVS_NOT_REACHED(); |
54834960 EJ |
1129 | } |
1130 | } | |
1131 | ||
1132 | int | |
1133 | ofputil_packet_in_format_from_string(const char *s) | |
1134 | { | |
1135 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1136 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1137 | : -1); | |
1138 | } | |
1139 | ||
03e1125c SH |
1140 | void |
1141 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1142 | { | |
8989046d | 1143 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1144 | } |
1145 | ||
1146 | void | |
1147 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1148 | { | |
1149 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1150 | } | |
1151 | ||
1152 | static void | |
1153 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1154 | void (*format_version)(struct ds *msg, | |
1155 | enum ofp_version)) | |
1156 | { | |
1157 | while (bitmap) { | |
1158 | format_version(msg, raw_ctz(bitmap)); | |
1159 | bitmap = zero_rightmost_1bit(bitmap); | |
1160 | if (bitmap) { | |
1161 | ds_put_cstr(msg, ", "); | |
1162 | } | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | void | |
1167 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1168 | { | |
1169 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1170 | } | |
1171 | ||
1172 | void | |
1173 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1174 | { | |
1175 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1176 | } | |
1177 | ||
de6c85b0 SH |
1178 | static bool |
1179 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1180 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1181 | { |
1182 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1183 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1184 | uint32_t allowed_versions; |
de6c85b0 SH |
1185 | |
1186 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1187 | return false; | |
1188 | } | |
1189 | ||
1190 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1191 | * current implementation supports. Subsequent elements are ignored which | |
1192 | * should have no effect on session negotiation until Open vSwtich supports | |
1193 | * wire-protocol versions greater than 31. | |
1194 | */ | |
0935de41 | 1195 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1196 | |
0935de41 | 1197 | if (allowed_versions & 1) { |
de6c85b0 SH |
1198 | /* There's no OpenFlow version 0. */ |
1199 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1200 | "version 0x00"); | |
0935de41 | 1201 | allowed_versions &= ~1u; |
de6c85b0 SH |
1202 | } |
1203 | ||
0935de41 | 1204 | if (!allowed_versions) { |
de6c85b0 SH |
1205 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1206 | "version (between 0x01 and 0x1f)"); | |
1207 | return false; | |
1208 | } | |
1209 | ||
0935de41 | 1210 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1211 | return true; |
1212 | } | |
1213 | ||
1214 | static uint32_t | |
1215 | version_bitmap_from_version(uint8_t ofp_version) | |
1216 | { | |
1217 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1218 | } | |
1219 | ||
1220 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1221 | * the set of OpenFlow versions for which 'oh' announces support. | |
1222 | * | |
1223 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1224 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1225 | * returns false if 'oh' contains some data that could not be fully understood, | |
1226 | * true if 'oh' was completely parsed. */ | |
1227 | bool | |
1228 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1229 | { | |
1230 | struct ofpbuf msg; | |
1231 | bool ok = true; | |
1232 | ||
1233 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1234 | ofpbuf_pull(&msg, sizeof *oh); | |
1235 | ||
1236 | *allowed_versions = version_bitmap_from_version(oh->version); | |
1237 | while (msg.size) { | |
1238 | const struct ofp_hello_elem_header *oheh; | |
1239 | unsigned int len; | |
1240 | ||
1241 | if (msg.size < sizeof *oheh) { | |
1242 | return false; | |
1243 | } | |
1244 | ||
1245 | oheh = msg.data; | |
1246 | len = ntohs(oheh->length); | |
1247 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1248 | return false; | |
1249 | } | |
1250 | ||
1251 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1252 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1253 | ok = false; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | return ok; | |
1258 | } | |
1259 | ||
1260 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1261 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1262 | static bool |
de6c85b0 SH |
1263 | should_send_version_bitmap(uint32_t allowed_versions) |
1264 | { | |
1265 | return !is_pow2((allowed_versions >> 1) + 1); | |
1266 | } | |
1267 | ||
1268 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1269 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1270 | struct ofpbuf * | |
1271 | ofputil_encode_hello(uint32_t allowed_versions) | |
1272 | { | |
1273 | enum ofp_version ofp_version; | |
1274 | struct ofpbuf *msg; | |
1275 | ||
1276 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1277 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1278 | ||
1279 | if (should_send_version_bitmap(allowed_versions)) { | |
1280 | struct ofp_hello_elem_header *oheh; | |
1281 | uint16_t map_len; | |
1282 | ||
74c4b9c1 | 1283 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1284 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1285 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1286 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1287 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1288 | |
1289 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1290 | } |
1291 | ||
1292 | return msg; | |
1293 | } | |
1294 | ||
27527aa0 BP |
1295 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1296 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1297 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1298 | * connection if the switch processes the returned message correctly. (If | |
1299 | * '*next != want' then the caller will have to iterate.) | |
1300 | * | |
e43928f2 BP |
1301 | * If 'current == want', or if it is not possible to transition from 'current' |
1302 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1303 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1304 | struct ofpbuf * |
1305 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1306 | enum ofputil_protocol want, | |
1307 | enum ofputil_protocol *next) | |
1308 | { | |
e43928f2 | 1309 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1310 | enum ofputil_protocol cur_base, want_base; |
1311 | bool cur_tid, want_tid; | |
1312 | ||
e43928f2 BP |
1313 | cur_version = ofputil_protocol_to_ofp_version(current); |
1314 | want_version = ofputil_protocol_to_ofp_version(want); | |
1315 | if (cur_version != want_version) { | |
1316 | *next = current; | |
1317 | return NULL; | |
1318 | } | |
1319 | ||
27527aa0 BP |
1320 | cur_base = ofputil_protocol_to_base(current); |
1321 | want_base = ofputil_protocol_to_base(want); | |
1322 | if (cur_base != want_base) { | |
1323 | *next = ofputil_protocol_set_base(current, want_base); | |
1324 | ||
1325 | switch (want_base) { | |
85813857 | 1326 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1327 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1328 | ||
85813857 | 1329 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1330 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1331 | ||
75fa58f8 | 1332 | case OFPUTIL_P_OF11_STD: |
85813857 | 1333 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1334 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1335 | case OFPUTIL_P_OF14_OXM: |
75fa58f8 | 1336 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1337 | * verified above that we're not trying to change versions. */ |
428b2edd | 1338 | OVS_NOT_REACHED(); |
44d3732d | 1339 | |
85813857 BP |
1340 | case OFPUTIL_P_OF10_STD_TID: |
1341 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1342 | OVS_NOT_REACHED(); |
27527aa0 BP |
1343 | } |
1344 | } | |
1345 | ||
1346 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1347 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1348 | if (cur_tid != want_tid) { | |
1349 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1350 | return ofputil_make_flow_mod_table_id(want_tid); | |
1351 | } | |
1352 | ||
cb22974d | 1353 | ovs_assert(current == want); |
27527aa0 BP |
1354 | |
1355 | *next = current; | |
1356 | return NULL; | |
88ca35ee BP |
1357 | } |
1358 | ||
27527aa0 BP |
1359 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1360 | * format to 'nxff'. */ | |
88ca35ee | 1361 | struct ofpbuf * |
27527aa0 | 1362 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1363 | { |
73dbf4ab | 1364 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1365 | struct ofpbuf *msg; |
1366 | ||
cb22974d | 1367 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1368 | |
982697a4 BP |
1369 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1370 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1371 | sff->format = htonl(nxff); |
88ca35ee BP |
1372 | |
1373 | return msg; | |
1374 | } | |
1375 | ||
27527aa0 BP |
1376 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1377 | * otherwise. */ | |
1378 | enum ofputil_protocol | |
1379 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1380 | { | |
1381 | switch (flow_format) { | |
1382 | case NXFF_OPENFLOW10: | |
85813857 | 1383 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1384 | |
1385 | case NXFF_NXM: | |
85813857 | 1386 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1387 | |
1388 | default: | |
1389 | return 0; | |
1390 | } | |
1391 | } | |
1392 | ||
1393 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1394 | bool | |
1395 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1396 | { | |
1397 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1398 | } | |
1399 | ||
1400 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1401 | * value. */ | |
1402 | const char * | |
1403 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1404 | { | |
1405 | switch (flow_format) { | |
1406 | case NXFF_OPENFLOW10: | |
1407 | return "openflow10"; | |
1408 | case NXFF_NXM: | |
1409 | return "nxm"; | |
1410 | default: | |
428b2edd | 1411 | OVS_NOT_REACHED(); |
27527aa0 BP |
1412 | } |
1413 | } | |
1414 | ||
54834960 | 1415 | struct ofpbuf * |
3f4a1939 SH |
1416 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1417 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1418 | { |
73dbf4ab | 1419 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1420 | struct ofpbuf *msg; |
1421 | ||
3f4a1939 | 1422 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1423 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1424 | spif->format = htonl(packet_in_format); |
1425 | ||
1426 | return msg; | |
1427 | } | |
1428 | ||
6c1491fb BP |
1429 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1430 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1431 | struct ofpbuf * | |
1432 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1433 | { | |
73dbf4ab | 1434 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1435 | struct ofpbuf *msg; |
1436 | ||
982697a4 BP |
1437 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1438 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1439 | nfmti->set = flow_mod_table_id; |
1440 | return msg; | |
1441 | } | |
1442 | ||
0fb88c18 BP |
1443 | struct ofputil_flow_mod_flag { |
1444 | uint16_t raw_flag; | |
1445 | enum ofp_version min_version, max_version; | |
1446 | enum ofputil_flow_mod_flags flag; | |
1447 | }; | |
1448 | ||
1449 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1450 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1451 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1452 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1453 | OFPUTIL_FF_EMERG }, | |
1454 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1455 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1456 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1457 | { 0, 0, 0, 0 }, | |
1458 | }; | |
1459 | ||
1460 | static enum ofperr | |
1461 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1462 | enum ofp_flow_mod_command command, | |
1463 | enum ofp_version version, | |
1464 | enum ofputil_flow_mod_flags *flagsp) | |
1465 | { | |
1466 | uint16_t raw_flags = ntohs(raw_flags_); | |
1467 | const struct ofputil_flow_mod_flag *f; | |
1468 | ||
1469 | *flagsp = 0; | |
1470 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1471 | if (raw_flags & f->raw_flag | |
1472 | && version >= f->min_version | |
1473 | && (!f->max_version || version <= f->max_version)) { | |
1474 | raw_flags &= ~f->raw_flag; | |
1475 | *flagsp |= f->flag; | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1480 | * never do. | |
1481 | * | |
1482 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1483 | * resets counters. */ | |
1484 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1485 | && command == OFPFC_ADD) { | |
1486 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1487 | } | |
1488 | ||
1489 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1490 | } | |
1491 | ||
1492 | static ovs_be16 | |
1493 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1494 | enum ofp_version version) | |
1495 | { | |
1496 | const struct ofputil_flow_mod_flag *f; | |
1497 | uint16_t raw_flags; | |
1498 | ||
1499 | raw_flags = 0; | |
1500 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1501 | if (f->flag & flags | |
1502 | && version >= f->min_version | |
1503 | && (!f->max_version || version <= f->max_version)) { | |
1504 | raw_flags |= f->raw_flag; | |
1505 | } | |
1506 | } | |
1507 | ||
1508 | return htons(raw_flags); | |
1509 | } | |
1510 | ||
7fa91113 BP |
1511 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1512 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1513 | * code. | |
1514 | * | |
f25d0cf3 BP |
1515 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1516 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1517 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1518 | * | |
1519 | * Does not validate the flow_mod actions. The caller should do that, with | |
1520 | * ofpacts_check(). */ | |
90bf1e07 | 1521 | enum ofperr |
a9a2da38 | 1522 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1523 | const struct ofp_header *oh, |
f25d0cf3 | 1524 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1525 | struct ofpbuf *ofpacts, |
1526 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1527 | { |
0fb88c18 BP |
1528 | ovs_be16 raw_flags; |
1529 | enum ofperr error; | |
2e4f5fcf | 1530 | struct ofpbuf b; |
982697a4 | 1531 | enum ofpraw raw; |
2e4f5fcf | 1532 | |
2013493b | 1533 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1534 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1535 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1536 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1537 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1538 | |
bbc32a88 | 1539 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1540 | |
81a76618 | 1541 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1542 | if (error) { |
1543 | return error; | |
1c0b7503 BP |
1544 | } |
1545 | ||
e3f8f887 JR |
1546 | error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version, |
1547 | ofpacts); | |
f25d0cf3 BP |
1548 | if (error) { |
1549 | return error; | |
1550 | } | |
1551 | ||
2e4f5fcf | 1552 | /* Translate the message. */ |
81a76618 | 1553 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1554 | if (ofm->command == OFPFC_ADD |
1555 | || (oh->version == OFP11_VERSION | |
1556 | && (ofm->command == OFPFC_MODIFY || | |
1557 | ofm->command == OFPFC_MODIFY_STRICT) | |
1558 | && ofm->cookie_mask == htonll(0))) { | |
1559 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1560 | * not match on the cookie is treated as an "add" if there is no | |
1561 | * match. */ | |
aa319503 BP |
1562 | fm->cookie = htonll(0); |
1563 | fm->cookie_mask = htonll(0); | |
1564 | fm->new_cookie = ofm->cookie; | |
1565 | } else { | |
aa319503 BP |
1566 | fm->cookie = ofm->cookie; |
1567 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1568 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1569 | } |
23342857 | 1570 | fm->modify_cookie = false; |
aa319503 | 1571 | fm->command = ofm->command; |
0e197060 BP |
1572 | |
1573 | /* Get table ID. | |
1574 | * | |
083761ad SH |
1575 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1576 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1577 | fm->table_id = ofm->table_id; |
083761ad | 1578 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1579 | && (oh->version == OFP11_VERSION |
1580 | || (ofm->command != OFPFC_DELETE && | |
1581 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1582 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1583 | } | |
1584 | ||
2e4f5fcf BP |
1585 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1586 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1587 | fm->buffer_id = ntohl(ofm->buffer_id); | |
aa319503 | 1588 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1589 | if (error) { |
1590 | return error; | |
1591 | } | |
7395c052 | 1592 | |
1fe4c0a0 BP |
1593 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1594 | ofm->command == OFPFC_DELETE_STRICT | |
1595 | ? ntohl(ofm->out_group) | |
1596 | : OFPG11_ANY); | |
0fb88c18 | 1597 | raw_flags = ofm->flags; |
aa319503 | 1598 | } else { |
0fb88c18 BP |
1599 | uint16_t command; |
1600 | ||
aa319503 BP |
1601 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1602 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1603 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1604 | |
1605 | /* Get the ofp10_flow_mod. */ | |
1606 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1607 | ||
aa319503 | 1608 | /* Translate the rule. */ |
81a76618 BP |
1609 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1610 | ofputil_normalize_match(&fm->match); | |
aa319503 BP |
1611 | |
1612 | /* Now get the actions. */ | |
e3f8f887 JR |
1613 | error = ofpacts_pull_openflow_actions(&b, b.size, oh->version, |
1614 | ofpacts); | |
aa319503 BP |
1615 | if (error) { |
1616 | return error; | |
1617 | } | |
1618 | ||
81a76618 BP |
1619 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1620 | * highest possible priority. */ | |
1621 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1622 | ? ntohs(ofm->priority) | |
1623 | : UINT16_MAX); | |
1624 | ||
aa319503 BP |
1625 | /* Translate the message. */ |
1626 | command = ntohs(ofm->command); | |
1627 | fm->cookie = htonll(0); | |
1628 | fm->cookie_mask = htonll(0); | |
1629 | fm->new_cookie = ofm->cookie; | |
1630 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1631 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1632 | fm->buffer_id = ntohl(ofm->buffer_id); | |
4e022ec0 | 1633 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1634 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1635 | raw_flags = ofm->flags; |
aa319503 BP |
1636 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1637 | /* Nicira extended flow_mod. */ | |
1638 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1639 | |
1640 | /* Dissect the message. */ | |
1641 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1642 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1643 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1644 | if (error) { |
1645 | return error; | |
1646 | } | |
e3f8f887 JR |
1647 | error = ofpacts_pull_openflow_actions(&b, b.size, oh->version, |
1648 | ofpacts); | |
aa319503 BP |
1649 | if (error) { |
1650 | return error; | |
1651 | } | |
1652 | ||
1653 | /* Translate the message. */ | |
1654 | command = ntohs(nfm->command); | |
1655 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1656 | /* Flow additions may only set a new cookie, not match an | |
1657 | * existing cookie. */ | |
1658 | return OFPERR_NXBRC_NXM_INVALID; | |
1659 | } | |
81a76618 | 1660 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1661 | fm->new_cookie = nfm->cookie; |
1662 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1663 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
1664 | fm->buffer_id = ntohl(nfm->buffer_id); | |
4e022ec0 | 1665 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1666 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1667 | raw_flags = nfm->flags; |
aa319503 | 1668 | } else { |
428b2edd | 1669 | OVS_NOT_REACHED(); |
aa319503 BP |
1670 | } |
1671 | ||
b8266395 | 1672 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1673 | if (protocol & OFPUTIL_P_TID) { |
1674 | fm->command = command & 0xff; | |
1675 | fm->table_id = command >> 8; | |
1676 | } else { | |
1677 | fm->command = command; | |
1678 | fm->table_id = 0xff; | |
e729e793 | 1679 | } |
2e4f5fcf BP |
1680 | } |
1681 | ||
f25d0cf3 BP |
1682 | fm->ofpacts = ofpacts->data; |
1683 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1684 | |
0fb88c18 BP |
1685 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1686 | oh->version, &fm->flags); | |
1687 | if (error) { | |
1688 | return error; | |
1689 | } | |
1690 | ||
1691 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1692 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1693 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1694 | * | |
1695 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1696 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1697 | * code, so just state that the flow table is full. */ | |
1698 | return (fm->hard_timeout || fm->idle_timeout | |
1699 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1700 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1701 | } | |
1702 | ||
ba2fe8e9 BP |
1703 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1704 | &fm->match.flow, max_port, | |
1705 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1706 | } |
1707 | ||
638a19b0 JR |
1708 | static enum ofperr |
1709 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1710 | struct ofpbuf *bands) | |
1711 | { | |
1712 | const struct ofp13_meter_band_header *ombh; | |
1713 | struct ofputil_meter_band *mb; | |
1714 | uint16_t n = 0; | |
1715 | ||
1716 | ombh = ofpbuf_try_pull(msg, len); | |
1717 | if (!ombh) { | |
1718 | return OFPERR_OFPBRC_BAD_LEN; | |
1719 | } | |
1720 | ||
1721 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1722 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1723 | /* All supported band types have the same length. */ |
638a19b0 JR |
1724 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1725 | return OFPERR_OFPBRC_BAD_LEN; | |
1726 | } | |
1727 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1728 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1729 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1730 | return OFPERR_OFPMMFC_BAD_BAND; | |
1731 | } | |
638a19b0 JR |
1732 | mb->rate = ntohl(ombh->rate); |
1733 | mb->burst_size = ntohl(ombh->burst_size); | |
1734 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1735 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1736 | n++; | |
1737 | len -= ombh_len; | |
db5a1019 AW |
1738 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1739 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1740 | } |
1741 | if (len) { | |
1742 | return OFPERR_OFPBRC_BAD_LEN; | |
1743 | } | |
1744 | *n_bands = n; | |
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | enum ofperr | |
1749 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1750 | struct ofputil_meter_mod *mm, | |
1751 | struct ofpbuf *bands) | |
1752 | { | |
1753 | const struct ofp13_meter_mod *omm; | |
1754 | struct ofpbuf b; | |
1755 | ||
1756 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1757 | ofpraw_pull_assert(&b); | |
1758 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1759 | ||
1760 | /* Translate the message. */ | |
1761 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1762 | if (mm->command != OFPMC13_ADD && |
1763 | mm->command != OFPMC13_MODIFY && | |
1764 | mm->command != OFPMC13_DELETE) { | |
1765 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1766 | } | |
638a19b0 JR |
1767 | mm->meter.meter_id = ntohl(omm->meter_id); |
1768 | ||
1769 | if (mm->command == OFPMC13_DELETE) { | |
1770 | mm->meter.flags = 0; | |
1771 | mm->meter.n_bands = 0; | |
1772 | mm->meter.bands = NULL; | |
1773 | } else { | |
1774 | enum ofperr error; | |
1775 | ||
1776 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1777 | if (mm->meter.flags & OFPMF13_KBPS && |
1778 | mm->meter.flags & OFPMF13_PKTPS) { | |
1779 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1780 | } | |
638a19b0 JR |
1781 | mm->meter.bands = bands->data; |
1782 | ||
0445637d | 1783 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1784 | if (error) { |
1785 | return error; | |
1786 | } | |
1787 | } | |
1788 | return 0; | |
1789 | } | |
1790 | ||
1791 | void | |
1792 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1793 | { | |
1794 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1795 | *meter_id = ntohl(omr->meter_id); | |
1796 | } | |
1797 | ||
1798 | struct ofpbuf * | |
1799 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1800 | enum ofputil_meter_request_type type, | |
1801 | uint32_t meter_id) | |
1802 | { | |
1803 | struct ofpbuf *msg; | |
1804 | ||
1805 | enum ofpraw raw; | |
1806 | ||
1807 | switch (type) { | |
1808 | case OFPUTIL_METER_CONFIG: | |
1809 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1810 | break; | |
1811 | case OFPUTIL_METER_STATS: | |
1812 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1813 | break; | |
1814 | default: | |
1815 | case OFPUTIL_METER_FEATURES: | |
1816 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1817 | break; | |
1818 | } | |
1819 | ||
1820 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1821 | ||
1822 | if (type != OFPUTIL_METER_FEATURES) { | |
1823 | struct ofp13_meter_multipart_request *omr; | |
1824 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1825 | omr->meter_id = htonl(meter_id); | |
1826 | } | |
1827 | return msg; | |
1828 | } | |
1829 | ||
1830 | static void | |
1831 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1832 | struct ofpbuf *msg) | |
1833 | { | |
1834 | uint16_t n = 0; | |
1835 | ||
1836 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1837 | /* Currently all band types have same size. */ |
638a19b0 JR |
1838 | struct ofp13_meter_band_dscp_remark *ombh; |
1839 | size_t ombh_len = sizeof *ombh; | |
1840 | ||
1841 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1842 | ||
1843 | ombh->type = htons(mb->type); | |
1844 | ombh->len = htons(ombh_len); | |
1845 | ombh->rate = htonl(mb->rate); | |
1846 | ombh->burst_size = htonl(mb->burst_size); | |
1847 | ombh->prec_level = mb->prec_level; | |
1848 | ||
1849 | mb++; | |
1850 | } | |
1851 | } | |
1852 | ||
1853 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1854 | void | |
1855 | ofputil_append_meter_config(struct list *replies, | |
1856 | const struct ofputil_meter_config *mc) | |
1857 | { | |
1858 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
1859 | size_t start_ofs = msg->size; | |
1860 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); | |
1861 | reply->flags = htons(mc->flags); | |
1862 | reply->meter_id = htonl(mc->meter_id); | |
1863 | ||
1864 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1865 | ||
1866 | reply->length = htons(msg->size - start_ofs); | |
1867 | ||
1868 | ofpmp_postappend(replies, start_ofs); | |
1869 | } | |
1870 | ||
1871 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1872 | void | |
1873 | ofputil_append_meter_stats(struct list *replies, | |
1874 | const struct ofputil_meter_stats *ms) | |
1875 | { | |
1876 | struct ofp13_meter_stats *reply; | |
1877 | uint16_t n = 0; | |
1878 | uint16_t len; | |
1879 | ||
1880 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1881 | reply = ofpmp_append(replies, len); | |
1882 | ||
1883 | reply->meter_id = htonl(ms->meter_id); | |
1884 | reply->len = htons(len); | |
1885 | memset(reply->pad, 0, sizeof reply->pad); | |
1886 | reply->flow_count = htonl(ms->flow_count); | |
1887 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1888 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1889 | reply->duration_sec = htonl(ms->duration_sec); | |
1890 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1891 | ||
1892 | for (n = 0; n < ms->n_bands; ++n) { | |
1893 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1894 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1895 | ||
1896 | dst->packet_band_count = htonll(src->packet_count); | |
1897 | dst->byte_band_count = htonll(src->byte_count); | |
1898 | } | |
1899 | } | |
1900 | ||
1901 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1902 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1903 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1904 | * it across the call. | |
1905 | * | |
1906 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1907 | * message. Calling this function multiple times for a single 'msg' iterates | |
1908 | * through the replies. 'bands' is cleared for each reply. | |
1909 | * | |
1910 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1911 | * otherwise a positive errno value. */ | |
1912 | int | |
1913 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1914 | struct ofputil_meter_config *mc, | |
1915 | struct ofpbuf *bands) | |
1916 | { | |
1917 | const struct ofp13_meter_config *omc; | |
1918 | enum ofperr err; | |
1919 | ||
1920 | /* Pull OpenFlow headers for the first call. */ | |
1921 | if (!msg->l2) { | |
1922 | ofpraw_pull_assert(msg); | |
1923 | } | |
1924 | ||
1925 | if (!msg->size) { | |
1926 | return EOF; | |
1927 | } | |
1928 | ||
1929 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1930 | if (!omc) { | |
0445637d | 1931 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1932 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
0445637d | 1933 | msg->size); |
638a19b0 JR |
1934 | return OFPERR_OFPBRC_BAD_LEN; |
1935 | } | |
1936 | ||
1937 | ofpbuf_clear(bands); | |
1938 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1939 | &mc->n_bands, bands); | |
1940 | if (err) { | |
1941 | return err; | |
1942 | } | |
1943 | mc->meter_id = ntohl(omc->meter_id); | |
1944 | mc->flags = ntohs(omc->flags); | |
1945 | mc->bands = bands->data; | |
1946 | ||
1947 | return 0; | |
1948 | } | |
1949 | ||
1950 | static enum ofperr | |
1951 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1952 | struct ofpbuf *bands) | |
1953 | { | |
1954 | const struct ofp13_meter_band_stats *ombs; | |
1955 | struct ofputil_meter_band_stats *mbs; | |
1956 | uint16_t n, i; | |
1957 | ||
0445637d JR |
1958 | ombs = ofpbuf_try_pull(msg, len); |
1959 | if (!ombs) { | |
1960 | return OFPERR_OFPBRC_BAD_LEN; | |
1961 | } | |
1962 | ||
638a19b0 JR |
1963 | n = len / sizeof *ombs; |
1964 | if (len != n * sizeof *ombs) { | |
1965 | return OFPERR_OFPBRC_BAD_LEN; | |
1966 | } | |
1967 | ||
638a19b0 JR |
1968 | mbs = ofpbuf_put_uninit(bands, len); |
1969 | ||
1970 | for (i = 0; i < n; ++i) { | |
1971 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
1972 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
1973 | } | |
1974 | *n_bands = n; | |
1975 | return 0; | |
1976 | } | |
1977 | ||
1978 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
1979 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
1980 | * decoded into 'bands'. | |
1981 | * | |
1982 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
1983 | * message. Calling this function multiple times for a single 'msg' iterates | |
1984 | * through the replies. 'bands' is cleared for each reply. | |
1985 | * | |
1986 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1987 | * otherwise a positive errno value. */ | |
1988 | int | |
1989 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
1990 | struct ofputil_meter_stats *ms, | |
1991 | struct ofpbuf *bands) | |
1992 | { | |
1993 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
1994 | enum ofperr err; |
1995 | ||
1996 | /* Pull OpenFlow headers for the first call. */ | |
1997 | if (!msg->l2) { | |
1998 | ofpraw_pull_assert(msg); | |
1999 | } | |
2000 | ||
2001 | if (!msg->size) { | |
2002 | return EOF; | |
2003 | } | |
2004 | ||
2005 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2006 | if (!oms) { | |
0445637d | 2007 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2008 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
0445637d | 2009 | msg->size); |
638a19b0 JR |
2010 | return OFPERR_OFPBRC_BAD_LEN; |
2011 | } | |
638a19b0 JR |
2012 | |
2013 | ofpbuf_clear(bands); | |
0445637d JR |
2014 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2015 | &ms->n_bands, bands); | |
638a19b0 JR |
2016 | if (err) { |
2017 | return err; | |
2018 | } | |
2019 | ms->meter_id = ntohl(oms->meter_id); | |
2020 | ms->flow_count = ntohl(oms->flow_count); | |
2021 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2022 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2023 | ms->duration_sec = ntohl(oms->duration_sec); | |
2024 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
2025 | ms->bands = bands->data; | |
2026 | ||
2027 | return 0; | |
2028 | } | |
2029 | ||
2030 | void | |
2031 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2032 | struct ofputil_meter_features *mf) | |
2033 | { | |
2034 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2035 | ||
2036 | mf->max_meters = ntohl(omf->max_meter); | |
2037 | mf->band_types = ntohl(omf->band_types); | |
2038 | mf->capabilities = ntohl(omf->capabilities); | |
2039 | mf->max_bands = omf->max_bands; | |
2040 | mf->max_color = omf->max_color; | |
2041 | } | |
2042 | ||
2043 | struct ofpbuf * | |
2044 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2045 | const struct ofp_header *request) | |
2046 | { | |
2047 | struct ofpbuf *reply; | |
2048 | struct ofp13_meter_features *omf; | |
2049 | ||
2050 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2051 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2052 | ||
2053 | omf->max_meter = htonl(mf->max_meters); | |
2054 | omf->band_types = htonl(mf->band_types); | |
2055 | omf->capabilities = htonl(mf->capabilities); | |
2056 | omf->max_bands = mf->max_bands; | |
2057 | omf->max_color = mf->max_color; | |
2058 | ||
2059 | return reply; | |
2060 | } | |
2061 | ||
2062 | struct ofpbuf * | |
2063 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2064 | const struct ofputil_meter_mod *mm) | |
2065 | { | |
2066 | struct ofpbuf *msg; | |
2067 | ||
2068 | struct ofp13_meter_mod *omm; | |
2069 | ||
2070 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2071 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2072 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2073 | omm->command = htons(mm->command); | |
2074 | if (mm->command != OFPMC13_DELETE) { | |
2075 | omm->flags = htons(mm->meter.flags); | |
2076 | } | |
2077 | omm->meter_id = htonl(mm->meter.meter_id); | |
2078 | ||
2079 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2080 | ||
2081 | ofpmsg_update_length(msg); | |
2082 | return msg; | |
2083 | } | |
2084 | ||
aa6305ea SH |
2085 | static ovs_be16 |
2086 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2087 | enum ofputil_protocol protocol) | |
2088 | { | |
2089 | return htons(protocol & OFPUTIL_P_TID | |
2090 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2091 | : fm->command); | |
2092 | } | |
2093 | ||
2e4f5fcf | 2094 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2095 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2096 | struct ofpbuf * |
a9a2da38 | 2097 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2098 | enum ofputil_protocol protocol) |
2e4f5fcf | 2099 | { |
0fb88c18 BP |
2100 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2101 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2102 | struct ofpbuf *msg; |
2103 | ||
27527aa0 | 2104 | switch (protocol) { |
75fa58f8 | 2105 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2106 | case OFPUTIL_P_OF12_OXM: |
c37c0382 AC |
2107 | case OFPUTIL_P_OF13_OXM: |
2108 | case OFPUTIL_P_OF14_OXM: { | |
aa6305ea | 2109 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2110 | int tailroom; |
aa6305ea | 2111 | |
75fa58f8 | 2112 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2113 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2114 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2115 | if ((protocol == OFPUTIL_P_OF11_STD |
2116 | && (fm->command == OFPFC_MODIFY || | |
2117 | fm->command == OFPFC_MODIFY_STRICT) | |
2118 | && fm->cookie_mask == htonll(0)) | |
2119 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2120 | ofm->cookie = fm->new_cookie; |
2121 | } else { | |
2122 | ofm->cookie = fm->cookie; | |
2123 | } | |
aa6305ea | 2124 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2125 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2126 | || (protocol != OFPUTIL_P_OF11_STD |
2127 | && (fm->command == OFPFC_DELETE || | |
2128 | fm->command == OFPFC_DELETE_STRICT))) { | |
2129 | ofm->table_id = fm->table_id; | |
2130 | } else { | |
2131 | ofm->table_id = 0; | |
2132 | } | |
aa6305ea SH |
2133 | ofm->command = fm->command; |
2134 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2135 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2136 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2137 | ofm->buffer_id = htonl(fm->buffer_id); |
2138 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2139 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2140 | ofm->flags = raw_flags; |
75fa58f8 | 2141 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2142 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2143 | version); | |
aa6305ea SH |
2144 | break; |
2145 | } | |
2146 | ||
85813857 BP |
2147 | case OFPUTIL_P_OF10_STD: |
2148 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2149 | struct ofp10_flow_mod *ofm; |
2150 | ||
982697a4 BP |
2151 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2152 | fm->ofpacts_len); | |
2153 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2154 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2155 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2156 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2157 | ofm->idle_timeout = htons(fm->idle_timeout); |
2158 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2159 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2160 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2161 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2162 | ofm->flags = raw_flags; |
e3f8f887 JR |
2163 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2164 | version); | |
27527aa0 | 2165 | break; |
3f192f23 | 2166 | } |
2e4f5fcf | 2167 | |
85813857 BP |
2168 | case OFPUTIL_P_OF10_NXM: |
2169 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2170 | struct nx_flow_mod *nfm; |
2171 | int match_len; | |
2172 | ||
982697a4 BP |
2173 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2174 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2175 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2176 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2177 | nfm->cookie = fm->new_cookie; |
81a76618 | 2178 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
437d0d22 | 2179 | nfm = ofpbuf_get_l3(msg); |
2e4f5fcf BP |
2180 | nfm->idle_timeout = htons(fm->idle_timeout); |
2181 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2182 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2183 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2184 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2185 | nfm->flags = raw_flags; |
2e4f5fcf | 2186 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2187 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2188 | version); | |
27527aa0 | 2189 | break; |
3f192f23 | 2190 | } |
27527aa0 BP |
2191 | |
2192 | default: | |
428b2edd | 2193 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2194 | } |
2195 | ||
982697a4 | 2196 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2197 | return msg; |
2198 | } | |
2199 | ||
90bf1e07 | 2200 | static enum ofperr |
0157ad3a SH |
2201 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2202 | const struct ofp10_flow_stats_request *ofsr, | |
2203 | bool aggregate) | |
2e4f5fcf | 2204 | { |
2e4f5fcf | 2205 | fsr->aggregate = aggregate; |
81a76618 | 2206 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2207 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2208 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2209 | fsr->table_id = ofsr->table_id; |
e729e793 | 2210 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2211 | |
2212 | return 0; | |
2213 | } | |
2214 | ||
0157ad3a SH |
2215 | static enum ofperr |
2216 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2217 | struct ofpbuf *b, bool aggregate) | |
2218 | { | |
2219 | const struct ofp11_flow_stats_request *ofsr; | |
2220 | enum ofperr error; | |
2221 | ||
2222 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2223 | fsr->aggregate = aggregate; | |
2224 | fsr->table_id = ofsr->table_id; | |
2225 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2226 | if (error) { | |
2227 | return error; | |
2228 | } | |
7395c052 | 2229 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2230 | fsr->cookie = ofsr->cookie; |
2231 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2232 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2233 | if (error) { |
2234 | return error; | |
2235 | } | |
2236 | ||
2237 | return 0; | |
2238 | } | |
2239 | ||
90bf1e07 | 2240 | static enum ofperr |
81d1ea94 | 2241 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2242 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2243 | { |
2244 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2245 | enum ofperr error; |
2e4f5fcf | 2246 | |
982697a4 | 2247 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2248 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2249 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2250 | if (error) { |
2251 | return error; | |
2252 | } | |
982697a4 | 2253 | if (b->size) { |
90bf1e07 | 2254 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2255 | } |
2256 | ||
2257 | fsr->aggregate = aggregate; | |
4e022ec0 | 2258 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2259 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2260 | fsr->table_id = nfsr->table_id; |
2261 | ||
2262 | return 0; | |
2263 | } | |
2264 | ||
e8f9a7bb VG |
2265 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2266 | * 'port', suitable for OpenFlow version 'version'. */ | |
2267 | struct ofpbuf * | |
2268 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2269 | ofp_port_t port) | |
2270 | { | |
2271 | struct ofpbuf *request; | |
2272 | ||
2273 | if (version == OFP10_VERSION) { | |
2274 | struct ofp10_queue_get_config_request *qgcr10; | |
2275 | ||
2276 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2277 | version, 0); | |
2278 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2279 | qgcr10->port = htons(ofp_to_u16(port)); | |
2280 | } else { | |
2281 | struct ofp11_queue_get_config_request *qgcr11; | |
2282 | ||
2283 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2284 | version, 0); | |
2285 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2286 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2287 | } | |
2288 | ||
2289 | return request; | |
2290 | } | |
2291 | ||
2292 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2293 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2294 | * code. */ | |
2295 | enum ofperr | |
2296 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2297 | ofp_port_t *port) | |
2298 | { | |
2299 | const struct ofp10_queue_get_config_request *qgcr10; | |
2300 | const struct ofp11_queue_get_config_request *qgcr11; | |
2301 | enum ofpraw raw; | |
2302 | struct ofpbuf b; | |
2303 | ||
2304 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2305 | raw = ofpraw_pull_assert(&b); | |
2306 | ||
2307 | switch ((int) raw) { | |
2308 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2309 | qgcr10 = b.data; | |
2310 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2311 | return 0; | |
2312 | ||
2313 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2314 | qgcr11 = b.data; | |
2315 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2316 | } | |
2317 | ||
428b2edd | 2318 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2319 | } |
2320 | ||
2321 | /* Constructs and returns the beginning of a reply to | |
2322 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2323 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2324 | struct ofpbuf * | |
2325 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2326 | { | |
2327 | struct ofp10_queue_get_config_reply *qgcr10; | |
2328 | struct ofp11_queue_get_config_reply *qgcr11; | |
2329 | struct ofpbuf *reply; | |
2330 | enum ofperr error; | |
2331 | struct ofpbuf b; | |
2332 | enum ofpraw raw; | |
2333 | ofp_port_t port; | |
2334 | ||
2335 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2336 | ovs_assert(!error); | |
2337 | ||
2338 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2339 | raw = ofpraw_pull_assert(&b); | |
2340 | ||
2341 | switch ((int) raw) { | |
2342 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2343 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2344 | oh, 0); | |
2345 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2346 | qgcr10->port = htons(ofp_to_u16(port)); | |
2347 | break; | |
2348 | ||
2349 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2350 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2351 | oh, 0); | |
2352 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2353 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2354 | break; | |
2355 | ||
2356 | default: | |
428b2edd | 2357 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2358 | } |
2359 | ||
2360 | return reply; | |
2361 | } | |
2362 | ||
2363 | static void | |
2364 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2365 | uint16_t rate) | |
2366 | { | |
2367 | if (rate != UINT16_MAX) { | |
2368 | struct ofp_queue_prop_rate *oqpr; | |
2369 | ||
2370 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2371 | oqpr->prop_header.property = htons(property); | |
2372 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2373 | oqpr->rate = htons(rate); | |
2374 | } | |
2375 | } | |
2376 | ||
2377 | /* Appends a queue description for 'queue_id' to the | |
2378 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2379 | void | |
2380 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2381 | const struct ofputil_queue_config *oqc) | |
2382 | { | |
2383 | const struct ofp_header *oh = reply->data; | |
2384 | size_t start_ofs, len_ofs; | |
2385 | ovs_be16 *len; | |
2386 | ||
2387 | start_ofs = reply->size; | |
2388 | if (oh->version < OFP12_VERSION) { | |
2389 | struct ofp10_packet_queue *opq10; | |
2390 | ||
2391 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2392 | opq10->queue_id = htonl(oqc->queue_id); | |
2393 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2394 | } else { | |
2395 | struct ofp11_queue_get_config_reply *qgcr11; | |
2396 | struct ofp12_packet_queue *opq12; | |
2397 | ovs_be32 port; | |
2398 | ||
437d0d22 | 2399 | qgcr11 = ofpbuf_get_l3(reply); |
e8f9a7bb VG |
2400 | port = qgcr11->port; |
2401 | ||
2402 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2403 | opq12->port = port; | |
2404 | opq12->queue_id = htonl(oqc->queue_id); | |
2405 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2406 | } | |
2407 | ||
2408 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2409 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2410 | ||
2411 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
2412 | *len = htons(reply->size - start_ofs); | |
2413 | } | |
2414 | ||
2415 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2416 | * stores in '*port' the port that the reply is about. The caller may call | |
2417 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2418 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2419 | * ofperr.*/ | |
2420 | enum ofperr | |
2421 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2422 | { | |
2423 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2424 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2425 | enum ofpraw raw; | |
2426 | ||
2427 | raw = ofpraw_pull_assert(reply); | |
2428 | switch ((int) raw) { | |
2429 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2430 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2431 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2432 | return 0; | |
2433 | ||
2434 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2435 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2436 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2437 | } | |
2438 | ||
428b2edd | 2439 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2440 | } |
2441 | ||
2442 | static enum ofperr | |
2443 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2444 | { | |
2445 | const struct ofp_queue_prop_rate *oqpr; | |
2446 | ||
2447 | if (hdr->len == htons(sizeof *oqpr)) { | |
2448 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2449 | *rate = ntohs(oqpr->rate); | |
2450 | return 0; | |
2451 | } else { | |
2452 | return OFPERR_OFPBRC_BAD_LEN; | |
2453 | } | |
2454 | } | |
2455 | ||
2456 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2457 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2458 | * must already have pulled off the main header. | |
2459 | * | |
2460 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2461 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2462 | * problem decoding 'reply'. */ | |
2463 | int | |
2464 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2465 | struct ofputil_queue_config *queue) | |
2466 | { | |
2467 | const struct ofp_header *oh; | |
2468 | unsigned int opq_len; | |
2469 | unsigned int len; | |
2470 | ||
2471 | if (!reply->size) { | |
2472 | return EOF; | |
2473 | } | |
2474 | ||
2475 | queue->min_rate = UINT16_MAX; | |
2476 | queue->max_rate = UINT16_MAX; | |
2477 | ||
2478 | oh = reply->l2; | |
2479 | if (oh->version < OFP12_VERSION) { | |
2480 | const struct ofp10_packet_queue *opq10; | |
2481 | ||
2482 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2483 | if (!opq10) { | |
2484 | return OFPERR_OFPBRC_BAD_LEN; | |
2485 | } | |
2486 | queue->queue_id = ntohl(opq10->queue_id); | |
2487 | len = ntohs(opq10->len); | |
2488 | opq_len = sizeof *opq10; | |
2489 | } else { | |
2490 | const struct ofp12_packet_queue *opq12; | |
2491 | ||
2492 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2493 | if (!opq12) { | |
2494 | return OFPERR_OFPBRC_BAD_LEN; | |
2495 | } | |
2496 | queue->queue_id = ntohl(opq12->queue_id); | |
2497 | len = ntohs(opq12->len); | |
2498 | opq_len = sizeof *opq12; | |
2499 | } | |
2500 | ||
2501 | if (len < opq_len || len > reply->size + opq_len || len % 8) { | |
2502 | return OFPERR_OFPBRC_BAD_LEN; | |
2503 | } | |
2504 | len -= opq_len; | |
2505 | ||
2506 | while (len > 0) { | |
2507 | const struct ofp_queue_prop_header *hdr; | |
2508 | unsigned int property; | |
2509 | unsigned int prop_len; | |
2510 | enum ofperr error = 0; | |
2511 | ||
2512 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2513 | prop_len = ntohs(hdr->len); | |
2514 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { | |
2515 | return OFPERR_OFPBRC_BAD_LEN; | |
2516 | } | |
2517 | ||
2518 | property = ntohs(hdr->property); | |
2519 | switch (property) { | |
2520 | case OFPQT_MIN_RATE: | |
2521 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2522 | break; | |
2523 | ||
2524 | case OFPQT_MAX_RATE: | |
2525 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2526 | break; | |
2527 | ||
2528 | default: | |
2529 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2530 | break; | |
2531 | } | |
2532 | if (error) { | |
2533 | return error; | |
2534 | } | |
2535 | ||
2536 | ofpbuf_pull(reply, prop_len); | |
2537 | len -= prop_len; | |
2538 | } | |
2539 | return 0; | |
2540 | } | |
2541 | ||
2e4f5fcf | 2542 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2543 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2544 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2545 | enum ofperr |
81d1ea94 | 2546 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2547 | const struct ofp_header *oh) |
2e4f5fcf | 2548 | { |
982697a4 | 2549 | enum ofpraw raw; |
2e4f5fcf | 2550 | struct ofpbuf b; |
2e4f5fcf | 2551 | |
2013493b | 2552 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2553 | raw = ofpraw_pull_assert(&b); |
2554 | switch ((int) raw) { | |
cfc23141 | 2555 | case OFPRAW_OFPST10_FLOW_REQUEST: |
0157ad3a | 2556 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2557 | |
617da9cd | 2558 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
0157ad3a SH |
2559 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
2560 | ||
2561 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2562 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2563 | |
617da9cd SH |
2564 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2565 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2566 | ||
982697a4 BP |
2567 | case OFPRAW_NXST_FLOW_REQUEST: |
2568 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2569 | |
982697a4 BP |
2570 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2571 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2572 | |
2573 | default: | |
2574 | /* Hey, the caller lied. */ | |
428b2edd | 2575 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2576 | } |
2577 | } | |
2578 | ||
2579 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2580 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2581 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2582 | struct ofpbuf * |
81d1ea94 | 2583 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2584 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2585 | { |
2586 | struct ofpbuf *msg; | |
982697a4 | 2587 | enum ofpraw raw; |
2e4f5fcf | 2588 | |
27527aa0 | 2589 | switch (protocol) { |
75fa58f8 | 2590 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2591 | case OFPUTIL_P_OF12_OXM: |
c37c0382 AC |
2592 | case OFPUTIL_P_OF13_OXM: |
2593 | case OFPUTIL_P_OF14_OXM: { | |
06516c65 SH |
2594 | struct ofp11_flow_stats_request *ofsr; |
2595 | ||
2596 | raw = (fsr->aggregate | |
617da9cd | 2597 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2598 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2599 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2600 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2601 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2602 | ofsr->table_id = fsr->table_id; | |
2603 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2604 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2605 | ofsr->cookie = fsr->cookie; |
2606 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2607 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2608 | break; |
2609 | } | |
2610 | ||
85813857 BP |
2611 | case OFPUTIL_P_OF10_STD: |
2612 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2613 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2614 | |
982697a4 | 2615 | raw = (fsr->aggregate |
617da9cd | 2616 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2617 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2618 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2619 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2620 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2621 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2622 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2623 | break; |
2624 | } | |
2625 | ||
85813857 BP |
2626 | case OFPUTIL_P_OF10_NXM: |
2627 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2628 | struct nx_flow_stats_request *nfsr; |
2629 | int match_len; | |
2630 | ||
982697a4 BP |
2631 | raw = (fsr->aggregate |
2632 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2633 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2634 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2635 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2636 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2637 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2638 | |
437d0d22 | 2639 | nfsr = ofpbuf_get_l3(msg); |
4e022ec0 | 2640 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2641 | nfsr->match_len = htons(match_len); |
2642 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2643 | break; |
2644 | } | |
2645 | ||
2646 | default: | |
428b2edd | 2647 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2648 | } |
2649 | ||
2650 | return msg; | |
2651 | } | |
d1e2cf21 | 2652 | |
4ffd1b43 | 2653 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2654 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2655 | * |
2656 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2657 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2658 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2659 | * pointers null and not modify them between calls. | |
2660 | * | |
f27f2134 BP |
2661 | * Most switches don't send the values needed to populate fs->idle_age and |
2662 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2663 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2664 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2665 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2666 | * | |
f25d0cf3 BP |
2667 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2668 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2669 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2670 | * | |
4ffd1b43 BP |
2671 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2672 | * otherwise a positive errno value. */ | |
2673 | int | |
2674 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2675 | struct ofpbuf *msg, |
f25d0cf3 BP |
2676 | bool flow_age_extension, |
2677 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2678 | { |
0fb88c18 | 2679 | const struct ofp_header *oh; |
982697a4 BP |
2680 | enum ofperr error; |
2681 | enum ofpraw raw; | |
4ffd1b43 | 2682 | |
982697a4 BP |
2683 | error = (msg->l2 |
2684 | ? ofpraw_decode(&raw, msg->l2) | |
2685 | : ofpraw_pull(&raw, msg)); | |
2686 | if (error) { | |
2687 | return error; | |
4ffd1b43 | 2688 | } |
0fb88c18 | 2689 | oh = msg->l2; |
4ffd1b43 BP |
2690 | |
2691 | if (!msg->size) { | |
2692 | return EOF; | |
2e1ae200 JR |
2693 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2694 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2695 | const struct ofp11_flow_stats *ofs; |
2696 | size_t length; | |
2697 | uint16_t padded_match_len; | |
2698 | ||
2699 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2700 | if (!ofs) { | |
437d0d22 | 2701 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6ec5f0c5 SH |
2702 | "bytes at end", msg->size); |
2703 | return EINVAL; | |
2704 | } | |
2705 | ||
2706 | length = ntohs(ofs->length); | |
2707 | if (length < sizeof *ofs) { | |
2708 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2709 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2710 | return EINVAL; |
2711 | } | |
2712 | ||
81a76618 | 2713 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2714 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2715 | return EINVAL; | |
2716 | } | |
2717 | ||
e3f8f887 JR |
2718 | if (ofpacts_pull_openflow_instructions(msg, length - sizeof *ofs - |
2719 | padded_match_len, oh->version, | |
2720 | ofpacts)) { | |
6ec5f0c5 SH |
2721 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); |
2722 | return EINVAL; | |
2723 | } | |
2724 | ||
81a76618 | 2725 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2726 | fs->table_id = ofs->table_id; |
2727 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2728 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2729 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2730 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
0fb88c18 BP |
2731 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2732 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2733 | &fs->flags); | |
2734 | if (error) { | |
2735 | return error; | |
2736 | } | |
2737 | } else { | |
2738 | fs->flags = 0; | |
2739 | } | |
6ec5f0c5 SH |
2740 | fs->idle_age = -1; |
2741 | fs->hard_age = -1; | |
2742 | fs->cookie = ofs->cookie; | |
2743 | fs->packet_count = ntohll(ofs->packet_count); | |
2744 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2745 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2746 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2747 | size_t length; |
2748 | ||
2749 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2750 | if (!ofs) { | |
437d0d22 | 2751 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
4ffd1b43 BP |
2752 | "bytes at end", msg->size); |
2753 | return EINVAL; | |
2754 | } | |
2755 | ||
2756 | length = ntohs(ofs->length); | |
2757 | if (length < sizeof *ofs) { | |
2758 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2759 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2760 | return EINVAL; |
2761 | } | |
2762 | ||
e3f8f887 JR |
2763 | if (ofpacts_pull_openflow_actions(msg, length - sizeof *ofs, |
2764 | oh->version, ofpacts)) { | |
4ffd1b43 BP |
2765 | return EINVAL; |
2766 | } | |
2767 | ||
2768 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2769 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2770 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2771 | fs->table_id = ofs->table_id; |
2772 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2773 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2774 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2775 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
f27f2134 BP |
2776 | fs->idle_age = -1; |
2777 | fs->hard_age = -1; | |
4ffd1b43 BP |
2778 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2779 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2780 | fs->flags = 0; |
982697a4 | 2781 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2782 | const struct nx_flow_stats *nfs; |
f25d0cf3 | 2783 | size_t match_len, actions_len, length; |
4ffd1b43 BP |
2784 | |
2785 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2786 | if (!nfs) { | |
437d0d22 | 2787 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
4ffd1b43 BP |
2788 | "bytes at end", msg->size); |
2789 | return EINVAL; | |
2790 | } | |
2791 | ||
2792 | length = ntohs(nfs->length); | |
2793 | match_len = ntohs(nfs->match_len); | |
2794 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2795 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2796 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2797 | return EINVAL; |
2798 | } | |
81a76618 | 2799 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2800 | return EINVAL; |
2801 | } | |
2802 | ||
f25d0cf3 | 2803 | actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
e3f8f887 JR |
2804 | if (ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
2805 | ofpacts)) { | |
4ffd1b43 BP |
2806 | return EINVAL; |
2807 | } | |
2808 | ||
2809 | fs->cookie = nfs->cookie; | |
2810 | fs->table_id = nfs->table_id; | |
2811 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2812 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2813 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2814 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2815 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
f27f2134 BP |
2816 | fs->idle_age = -1; |
2817 | fs->hard_age = -1; | |
2818 | if (flow_age_extension) { | |
2819 | if (nfs->idle_age) { | |
2820 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2821 | } | |
2822 | if (nfs->hard_age) { | |
2823 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2824 | } | |
2825 | } | |
4ffd1b43 BP |
2826 | fs->packet_count = ntohll(nfs->packet_count); |
2827 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2828 | fs->flags = 0; |
4ffd1b43 | 2829 | } else { |
428b2edd | 2830 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2831 | } |
2832 | ||
f25d0cf3 BP |
2833 | fs->ofpacts = ofpacts->data; |
2834 | fs->ofpacts_len = ofpacts->size; | |
2835 | ||
4ffd1b43 BP |
2836 | return 0; |
2837 | } | |
2838 | ||
5e9d0469 BP |
2839 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2840 | * | |
2841 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2842 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2843 | static uint64_t | |
2844 | unknown_to_zero(uint64_t count) | |
2845 | { | |
2846 | return count != UINT64_MAX ? count : 0; | |
2847 | } | |
2848 | ||
349adfb2 BP |
2849 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2850 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2851 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2852 | void |
2853 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
2854 | struct list *replies) | |
2855 | { | |
f25d0cf3 | 2856 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
f25d0cf3 | 2857 | size_t start_ofs = reply->size; |
982697a4 | 2858 | enum ofpraw raw; |
e3f8f887 | 2859 | enum ofp_version version = ((struct ofp_header *)reply->data)->version; |
349adfb2 | 2860 | |
982697a4 | 2861 | ofpraw_decode_partial(&raw, reply->data, reply->size); |
2e1ae200 | 2862 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
2863 | struct ofp11_flow_stats *ofs; |
2864 | ||
2865 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
81a76618 | 2866 | oxm_put_match(reply, &fs->match); |
e3f8f887 JR |
2867 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
2868 | version); | |
22a86f18 SH |
2869 | |
2870 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
2871 | ofs->length = htons(reply->size - start_ofs); | |
2872 | ofs->table_id = fs->table_id; | |
2873 | ofs->pad = 0; | |
2874 | ofs->duration_sec = htonl(fs->duration_sec); | |
2875 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2876 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
2877 | ofs->idle_timeout = htons(fs->idle_timeout); |
2878 | ofs->hard_timeout = htons(fs->hard_timeout); | |
0fb88c18 | 2879 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 2880 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
2881 | } else { |
2882 | ofs->flags = 0; | |
2883 | } | |
22a86f18 SH |
2884 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
2885 | ofs->cookie = fs->cookie; | |
2886 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
2887 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
2888 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 2889 | struct ofp10_flow_stats *ofs; |
349adfb2 | 2890 | |
1a59dc2c | 2891 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
2892 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
2893 | version); | |
1a59dc2c BP |
2894 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
2895 | ofs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2896 | ofs->table_id = fs->table_id; |
2897 | ofs->pad = 0; | |
81a76618 | 2898 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
2899 | ofs->duration_sec = htonl(fs->duration_sec); |
2900 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2901 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
2902 | ofs->idle_timeout = htons(fs->idle_timeout); |
2903 | ofs->hard_timeout = htons(fs->hard_timeout); | |
2904 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
2905 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
2906 | put_32aligned_be64(&ofs->packet_count, |
2907 | htonll(unknown_to_zero(fs->packet_count))); | |
2908 | put_32aligned_be64(&ofs->byte_count, | |
2909 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 2910 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 2911 | struct nx_flow_stats *nfs; |
1a59dc2c | 2912 | int match_len; |
349adfb2 | 2913 | |
1a59dc2c | 2914 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 2915 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
2916 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
2917 | version); | |
1a59dc2c BP |
2918 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
2919 | nfs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2920 | nfs->table_id = fs->table_id; |
2921 | nfs->pad = 0; | |
2922 | nfs->duration_sec = htonl(fs->duration_sec); | |
2923 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2924 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
2925 | nfs->idle_timeout = htons(fs->idle_timeout); |
2926 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
2927 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
2928 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
2929 | : UINT16_MAX); | |
2930 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
2931 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
2932 | : UINT16_MAX); | |
1a59dc2c | 2933 | nfs->match_len = htons(match_len); |
349adfb2 BP |
2934 | nfs->cookie = fs->cookie; |
2935 | nfs->packet_count = htonll(fs->packet_count); | |
2936 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 2937 | } else { |
428b2edd | 2938 | OVS_NOT_REACHED(); |
349adfb2 | 2939 | } |
f25d0cf3 | 2940 | |
982697a4 | 2941 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
2942 | } |
2943 | ||
76c93b22 | 2944 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 2945 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
2946 | struct ofpbuf * |
2947 | ofputil_encode_aggregate_stats_reply( | |
2948 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 2949 | const struct ofp_header *request) |
76c93b22 | 2950 | { |
a814ba0f BP |
2951 | struct ofp_aggregate_stats_reply *asr; |
2952 | uint64_t packet_count; | |
2953 | uint64_t byte_count; | |
76c93b22 | 2954 | struct ofpbuf *msg; |
982697a4 | 2955 | enum ofpraw raw; |
76c93b22 | 2956 | |
982697a4 | 2957 | ofpraw_decode(&raw, request); |
617da9cd | 2958 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
2959 | packet_count = unknown_to_zero(stats->packet_count); |
2960 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 2961 | } else { |
a814ba0f BP |
2962 | packet_count = stats->packet_count; |
2963 | byte_count = stats->byte_count; | |
76c93b22 BP |
2964 | } |
2965 | ||
a814ba0f BP |
2966 | msg = ofpraw_alloc_stats_reply(request, 0); |
2967 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
2968 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
2969 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
2970 | asr->flow_count = htonl(stats->flow_count); | |
2971 | ||
76c93b22 BP |
2972 | return msg; |
2973 | } | |
2974 | ||
982697a4 BP |
2975 | enum ofperr |
2976 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
2977 | const struct ofp_header *reply) | |
2978 | { | |
a814ba0f | 2979 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 2980 | struct ofpbuf msg; |
982697a4 BP |
2981 | |
2982 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
2983 | ofpraw_pull_assert(&msg); |
2984 | ||
437d0d22 | 2985 | asr = ofpbuf_get_l3(&msg); |
a814ba0f BP |
2986 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
2987 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
2988 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
2989 | |
2990 | return 0; | |
2991 | } | |
2992 | ||
b78f6b77 BP |
2993 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
2994 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
2995 | * an OpenFlow error code. */ | |
90bf1e07 | 2996 | enum ofperr |
9b045a0c | 2997 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 2998 | const struct ofp_header *oh) |
9b045a0c | 2999 | { |
982697a4 BP |
3000 | enum ofpraw raw; |
3001 | struct ofpbuf b; | |
9b045a0c | 3002 | |
982697a4 BP |
3003 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3004 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3005 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3006 | const struct ofp12_flow_removed *ofr; | |
3007 | enum ofperr error; | |
3008 | ||
3009 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3010 | ||
81a76618 | 3011 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3012 | if (error) { |
3013 | return error; | |
3014 | } | |
3015 | ||
81a76618 | 3016 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3017 | fr->cookie = ofr->cookie; |
3018 | fr->reason = ofr->reason; | |
95216219 | 3019 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3020 | fr->duration_sec = ntohl(ofr->duration_sec); |
3021 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3022 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3023 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3024 | fr->packet_count = ntohll(ofr->packet_count); | |
3025 | fr->byte_count = ntohll(ofr->byte_count); | |
3026 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3027 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3028 | |
982697a4 BP |
3029 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3030 | ||
81a76618 BP |
3031 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3032 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3033 | fr->cookie = ofr->cookie; |
3034 | fr->reason = ofr->reason; | |
95216219 | 3035 | fr->table_id = 255; |
9b045a0c BP |
3036 | fr->duration_sec = ntohl(ofr->duration_sec); |
3037 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3038 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3039 | fr->hard_timeout = 0; |
9b045a0c BP |
3040 | fr->packet_count = ntohll(ofr->packet_count); |
3041 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3042 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3043 | struct nx_flow_removed *nfr; |
c2725b60 | 3044 | enum ofperr error; |
9b045a0c | 3045 | |
9b045a0c | 3046 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3047 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3048 | NULL, NULL); | |
9b045a0c BP |
3049 | if (error) { |
3050 | return error; | |
3051 | } | |
3052 | if (b.size) { | |
90bf1e07 | 3053 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3054 | } |
3055 | ||
81a76618 | 3056 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3057 | fr->cookie = nfr->cookie; |
3058 | fr->reason = nfr->reason; | |
745bfd5e | 3059 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3060 | fr->duration_sec = ntohl(nfr->duration_sec); |
3061 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3062 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3063 | fr->hard_timeout = 0; |
9b045a0c BP |
3064 | fr->packet_count = ntohll(nfr->packet_count); |
3065 | fr->byte_count = ntohll(nfr->byte_count); | |
3066 | } else { | |
428b2edd | 3067 | OVS_NOT_REACHED(); |
9b045a0c BP |
3068 | } |
3069 | ||
3070 | return 0; | |
3071 | } | |
3072 | ||
588cd7b5 | 3073 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3074 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3075 | * message. */ |
3076 | struct ofpbuf * | |
3077 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3078 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3079 | { |
3080 | struct ofpbuf *msg; | |
3081 | ||
27527aa0 | 3082 | switch (protocol) { |
75fa58f8 | 3083 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3084 | case OFPUTIL_P_OF12_OXM: |
c37c0382 AC |
3085 | case OFPUTIL_P_OF13_OXM: |
3086 | case OFPUTIL_P_OF14_OXM: { | |
83974732 SH |
3087 | struct ofp12_flow_removed *ofr; |
3088 | ||
3089 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3090 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3091 | htonl(0), |
3092 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3093 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3094 | ofr->cookie = fr->cookie; | |
81a76618 | 3095 | ofr->priority = htons(fr->priority); |
83974732 | 3096 | ofr->reason = fr->reason; |
95216219 | 3097 | ofr->table_id = fr->table_id; |
83974732 SH |
3098 | ofr->duration_sec = htonl(fr->duration_sec); |
3099 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3100 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3101 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3102 | ofr->packet_count = htonll(fr->packet_count); |
3103 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3104 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3105 | break; |
3106 | } | |
3107 | ||
85813857 BP |
3108 | case OFPUTIL_P_OF10_STD: |
3109 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3110 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3111 | |
982697a4 BP |
3112 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3113 | htonl(0), 0); | |
3114 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3115 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3116 | ofr->cookie = fr->cookie; |
81a76618 | 3117 | ofr->priority = htons(fr->priority); |
588cd7b5 BP |
3118 | ofr->reason = fr->reason; |
3119 | ofr->duration_sec = htonl(fr->duration_sec); | |
3120 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3121 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3122 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3123 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3124 | break; |
3125 | } | |
3126 | ||
85813857 BP |
3127 | case OFPUTIL_P_OF10_NXM: |
3128 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3129 | struct nx_flow_removed *nfr; |
3130 | int match_len; | |
3131 | ||
982697a4 BP |
3132 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3133 | htonl(0), NXM_TYPICAL_LEN); | |
3134 | nfr = ofpbuf_put_zeros(msg, sizeof *nfr); | |
81a76618 | 3135 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3136 | |
437d0d22 | 3137 | nfr = ofpbuf_get_l3(msg); |
588cd7b5 | 3138 | nfr->cookie = fr->cookie; |
81a76618 | 3139 | nfr->priority = htons(fr->priority); |
588cd7b5 | 3140 | nfr->reason = fr->reason; |
745bfd5e | 3141 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3142 | nfr->duration_sec = htonl(fr->duration_sec); |
3143 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3144 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3145 | nfr->match_len = htons(match_len); | |
3146 | nfr->packet_count = htonll(fr->packet_count); | |
3147 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3148 | break; |
3149 | } | |
3150 | ||
3151 | default: | |
428b2edd | 3152 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3153 | } |
3154 | ||
3155 | return msg; | |
3156 | } | |
3157 | ||
7cfb9651 SH |
3158 | static void |
3159 | ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin, | |
81a76618 | 3160 | struct match *match, struct ofpbuf *b) |
7cfb9651 SH |
3161 | { |
3162 | pin->packet = b->data; | |
3163 | pin->packet_len = b->size; | |
3164 | ||
4e022ec0 | 3165 | pin->fmd.in_port = match->flow.in_port.ofp_port; |
296e07ac | 3166 | pin->fmd.tun_id = match->flow.tunnel.tun_id; |
0ad90c84 JR |
3167 | pin->fmd.tun_src = match->flow.tunnel.ip_src; |
3168 | pin->fmd.tun_dst = match->flow.tunnel.ip_dst; | |
81a76618 BP |
3169 | pin->fmd.metadata = match->flow.metadata; |
3170 | memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs); | |
ac923e91 | 3171 | pin->fmd.pkt_mark = match->flow.pkt_mark; |
7cfb9651 SH |
3172 | } |
3173 | ||
f7cc6bd8 | 3174 | enum ofperr |
65120a8a EJ |
3175 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3176 | const struct ofp_header *oh) | |
3177 | { | |
982697a4 BP |
3178 | enum ofpraw raw; |
3179 | struct ofpbuf b; | |
65120a8a | 3180 | |
65120a8a | 3181 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3182 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3183 | |
982697a4 BP |
3184 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3185 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3186 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3187 | const struct ofp13_packet_in *opi; | |
81a76618 | 3188 | struct match match; |
7cfb9651 | 3189 | int error; |
2e1ae200 JR |
3190 | size_t packet_in_size; |
3191 | ||
3192 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3193 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3194 | } else { | |
3195 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3196 | } | |
7cfb9651 | 3197 | |
2e1ae200 | 3198 | opi = ofpbuf_pull(&b, packet_in_size); |
81a76618 | 3199 | error = oxm_pull_match_loose(&b, &match); |
7cfb9651 SH |
3200 | if (error) { |
3201 | return error; | |
3202 | } | |
3203 | ||
3204 | if (!ofpbuf_try_pull(&b, 2)) { | |
3205 | return OFPERR_OFPBRC_BAD_LEN; | |
3206 | } | |
3207 | ||
2e1ae200 JR |
3208 | pin->reason = opi->pi.reason; |
3209 | pin->table_id = opi->pi.table_id; | |
3210 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3211 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3212 | |
2e1ae200 JR |
3213 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3214 | pin->cookie = opi->cookie; | |
3215 | } | |
7cfb9651 | 3216 | |
81a76618 | 3217 | ofputil_decode_packet_in_finish(pin, &match, &b); |
7cfb9651 | 3218 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3219 | const struct ofp10_packet_in *opi; |
982697a4 | 3220 | |
31a9e63f | 3221 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3222 | |
3223 | pin->packet = opi->data; | |
982697a4 | 3224 | pin->packet_len = b.size; |
65120a8a | 3225 | |
4e022ec0 | 3226 | pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port)); |
65120a8a EJ |
3227 | pin->reason = opi->reason; |
3228 | pin->buffer_id = ntohl(opi->buffer_id); | |
3229 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3230 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3231 | const struct ofp11_packet_in *opi; | |
3232 | enum ofperr error; | |
3233 | ||
3234 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3235 | ||
3236 | pin->packet = b.data; | |
3237 | pin->packet_len = b.size; | |
3238 | ||
3239 | pin->buffer_id = ntohl(opi->buffer_id); | |
3240 | error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port); | |
3241 | if (error) { | |
3242 | return error; | |
3243 | } | |
3244 | pin->total_len = ntohs(opi->total_len); | |
3245 | pin->reason = opi->reason; | |
3246 | pin->table_id = opi->table_id; | |
982697a4 | 3247 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3248 | const struct nx_packet_in *npi; |
81a76618 | 3249 | struct match match; |
54834960 EJ |
3250 | int error; |
3251 | ||
54834960 | 3252 | npi = ofpbuf_pull(&b, sizeof *npi); |
81a76618 | 3253 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL, |
b5ae8913 | 3254 | NULL); |
54834960 EJ |
3255 | if (error) { |
3256 | return error; | |
3257 | } | |
3258 | ||
3259 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3260 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3261 | } |
3262 | ||
54834960 EJ |
3263 | pin->reason = npi->reason; |
3264 | pin->table_id = npi->table_id; | |
3265 | pin->cookie = npi->cookie; | |
3266 | ||
54834960 EJ |
3267 | pin->buffer_id = ntohl(npi->buffer_id); |
3268 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3269 | |
81a76618 | 3270 | ofputil_decode_packet_in_finish(pin, &match, &b); |
65120a8a | 3271 | } else { |
428b2edd | 3272 | OVS_NOT_REACHED(); |
65120a8a EJ |
3273 | } |
3274 | ||
3275 | return 0; | |
3276 | } | |
3277 | ||
d94240ec | 3278 | static void |
81a76618 BP |
3279 | ofputil_packet_in_to_match(const struct ofputil_packet_in *pin, |
3280 | struct match *match) | |
d94240ec SH |
3281 | { |
3282 | int i; | |
3283 | ||
81a76618 | 3284 | match_init_catchall(match); |
42edbe39 | 3285 | if (pin->fmd.tun_id != htonll(0)) { |
81a76618 | 3286 | match_set_tun_id(match, pin->fmd.tun_id); |
42edbe39 | 3287 | } |
0ad90c84 JR |
3288 | if (pin->fmd.tun_src != htonl(0)) { |
3289 | match_set_tun_src(match, pin->fmd.tun_src); | |
3290 | } | |
3291 | if (pin->fmd.tun_dst != htonl(0)) { | |
3292 | match_set_tun_dst(match, pin->fmd.tun_dst); | |
3293 | } | |
42edbe39 | 3294 | if (pin->fmd.metadata != htonll(0)) { |
81a76618 | 3295 | match_set_metadata(match, pin->fmd.metadata); |
42edbe39 | 3296 | } |
d94240ec SH |
3297 | |
3298 | for (i = 0; i < FLOW_N_REGS; i++) { | |
42edbe39 | 3299 | if (pin->fmd.regs[i]) { |
81a76618 | 3300 | match_set_reg(match, i, pin->fmd.regs[i]); |
42edbe39 | 3301 | } |
d94240ec SH |
3302 | } |
3303 | ||
ac923e91 JG |
3304 | if (pin->fmd.pkt_mark != 0) { |
3305 | match_set_pkt_mark(match, pin->fmd.pkt_mark); | |
3306 | } | |
3307 | ||
81a76618 | 3308 | match_set_in_port(match, pin->fmd.in_port); |
d94240ec SH |
3309 | } |
3310 | ||
0f83fea0 BP |
3311 | static struct ofpbuf * |
3312 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3313 | { | |
3314 | struct ofp10_packet_in *opi; | |
3315 | struct ofpbuf *packet; | |
3316 | ||
3317 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3318 | htonl(0), pin->packet_len); | |
3319 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3320 | opi->total_len = htons(pin->total_len); | |
3321 | opi->in_port = htons(ofp_to_u16(pin->fmd.in_port)); | |
3322 | opi->reason = pin->reason; | |
3323 | opi->buffer_id = htonl(pin->buffer_id); | |
3324 | ||
3325 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3326 | ||
3327 | return packet; | |
3328 | } | |
3329 | ||
3330 | static struct ofpbuf * | |
3331 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3332 | { | |
3333 | struct nx_packet_in *npi; | |
3334 | struct ofpbuf *packet; | |
3335 | struct match match; | |
3336 | size_t match_len; | |
3337 | ||
3338 | ofputil_packet_in_to_match(pin, &match); | |
3339 | ||
3340 | /* The final argument is just an estimate of the space required. */ | |
3341 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
3342 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3343 | + 2 + pin->packet_len)); | |
3344 | ofpbuf_put_zeros(packet, sizeof *npi); | |
3345 | match_len = nx_put_match(packet, &match, 0, 0); | |
3346 | ofpbuf_put_zeros(packet, 2); | |
3347 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3348 | ||
437d0d22 | 3349 | npi = ofpbuf_get_l3(packet); |
0f83fea0 BP |
3350 | npi->buffer_id = htonl(pin->buffer_id); |
3351 | npi->total_len = htons(pin->total_len); | |
3352 | npi->reason = pin->reason; | |
3353 | npi->table_id = pin->table_id; | |
3354 | npi->cookie = pin->cookie; | |
3355 | npi->match_len = htons(match_len); | |
3356 | ||
3357 | return packet; | |
3358 | } | |
3359 | ||
4d197ebb BP |
3360 | static struct ofpbuf * |
3361 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3362 | { | |
3363 | struct ofp11_packet_in *opi; | |
3364 | struct ofpbuf *packet; | |
3365 | ||
3366 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3367 | htonl(0), pin->packet_len); | |
3368 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3369 | opi->buffer_id = htonl(pin->buffer_id); | |
3370 | opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port); | |
3371 | opi->in_phy_port = opi->in_port; | |
3372 | opi->total_len = htons(pin->total_len); | |
3373 | opi->reason = pin->reason; | |
3374 | opi->table_id = pin->table_id; | |
3375 | ||
3376 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3377 | ||
3378 | return packet; | |
3379 | } | |
3380 | ||
0f83fea0 BP |
3381 | static struct ofpbuf * |
3382 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3383 | enum ofputil_protocol protocol) | |
3384 | { | |
3385 | struct ofp13_packet_in *opi; | |
3386 | struct match match; | |
3387 | enum ofpraw packet_in_raw; | |
3388 | enum ofp_version packet_in_version; | |
3389 | size_t packet_in_size; | |
3390 | struct ofpbuf *packet; | |
3391 | ||
3392 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3393 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3394 | packet_in_version = OFP12_VERSION; | |
3395 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3396 | } else { | |
3397 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
3398 | packet_in_version = OFP13_VERSION; | |
3399 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3400 | } | |
3401 | ||
3402 | ofputil_packet_in_to_match(pin, &match); | |
3403 | ||
3404 | /* The final argument is just an estimate of the space required. */ | |
3405 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
3406 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3407 | + 2 + pin->packet_len)); | |
3408 | ofpbuf_put_zeros(packet, packet_in_size); | |
3409 | oxm_put_match(packet, &match); | |
3410 | ofpbuf_put_zeros(packet, 2); | |
3411 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3412 | ||
437d0d22 | 3413 | opi = ofpbuf_get_l3(packet); |
0f83fea0 BP |
3414 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3415 | opi->pi.total_len = htons(pin->total_len); | |
3416 | opi->pi.reason = pin->reason; | |
3417 | opi->pi.table_id = pin->table_id; | |
3418 | if (protocol == OFPUTIL_P_OF13_OXM) { | |
3419 | opi->cookie = pin->cookie; | |
3420 | } | |
3421 | ||
3422 | return packet; | |
3423 | } | |
3424 | ||
54834960 EJ |
3425 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3426 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3427 | struct ofpbuf * |
54834960 | 3428 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3429 | enum ofputil_protocol protocol, |
54834960 | 3430 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3431 | { |
54834960 | 3432 | struct ofpbuf *packet; |
ebb57021 | 3433 | |
0f83fea0 BP |
3434 | switch (protocol) { |
3435 | case OFPUTIL_P_OF10_STD: | |
3436 | case OFPUTIL_P_OF10_STD_TID: | |
3437 | case OFPUTIL_P_OF10_NXM: | |
3438 | case OFPUTIL_P_OF10_NXM_TID: | |
3439 | packet = (packet_in_format == NXPIF_NXM | |
3440 | ? ofputil_encode_nx_packet_in(pin) | |
3441 | : ofputil_encode_ofp10_packet_in(pin)); | |
3442 | break; | |
2e1ae200 | 3443 | |
0f83fea0 | 3444 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3445 | packet = ofputil_encode_ofp11_packet_in(pin); |
3446 | break; | |
d94240ec | 3447 | |
0f83fea0 BP |
3448 | case OFPUTIL_P_OF12_OXM: |
3449 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3450 | case OFPUTIL_P_OF14_OXM: |
0f83fea0 BP |
3451 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3452 | break; | |
3453 | ||
3454 | default: | |
428b2edd | 3455 | OVS_NOT_REACHED(); |
54834960 | 3456 | } |
54834960 | 3457 | |
0f83fea0 | 3458 | ofpmsg_update_length(packet); |
54834960 | 3459 | return packet; |
ebb57021 BP |
3460 | } |
3461 | ||
5014a89d BP |
3462 | /* Returns a string form of 'reason'. The return value is either a statically |
3463 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3464 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3465 | const char * |
5014a89d BP |
3466 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3467 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3468 | { |
7c1a76a4 BP |
3469 | switch (reason) { |
3470 | case OFPR_NO_MATCH: | |
3471 | return "no_match"; | |
3472 | case OFPR_ACTION: | |
3473 | return "action"; | |
3474 | case OFPR_INVALID_TTL: | |
3475 | return "invalid_ttl"; | |
3476 | ||
3477 | case OFPR_N_REASONS: | |
3478 | default: | |
5014a89d BP |
3479 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3480 | return reasonbuf; | |
7c1a76a4 BP |
3481 | } |
3482 | } | |
3483 | ||
3484 | bool | |
3485 | ofputil_packet_in_reason_from_string(const char *s, | |
3486 | enum ofp_packet_in_reason *reason) | |
3487 | { | |
3488 | int i; | |
3489 | ||
3490 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3491 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3492 | const char *reason_s; | |
3493 | ||
3494 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3495 | sizeof reasonbuf); | |
3496 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3497 | *reason = i; |
3498 | return true; | |
3499 | } | |
3500 | } | |
3501 | return false; | |
3502 | } | |
3503 | ||
f25d0cf3 BP |
3504 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3505 | * 'po'. | |
3506 | * | |
3507 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3508 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3509 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3510 | * | |
3511 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3512 | enum ofperr |
3513 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3514 | const struct ofp_header *oh, |
f25d0cf3 | 3515 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3516 | { |
982697a4 | 3517 | enum ofpraw raw; |
c6a93eb7 BP |
3518 | struct ofpbuf b; |
3519 | ||
982697a4 BP |
3520 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3521 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3522 | |
eb5ee596 SH |
3523 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3524 | enum ofperr error; | |
3525 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3526 | ||
3527 | po->buffer_id = ntohl(opo->buffer_id); | |
3528 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3529 | if (error) { | |
3530 | return error; | |
3531 | } | |
3532 | ||
e3f8f887 JR |
3533 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3534 | oh->version, ofpacts); | |
eb5ee596 SH |
3535 | if (error) { |
3536 | return error; | |
3537 | } | |
eb5ee596 | 3538 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3539 | enum ofperr error; |
31a9e63f | 3540 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3541 | |
3542 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3543 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3544 | |
e3f8f887 JR |
3545 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3546 | oh->version, ofpacts); | |
8a6bc7cd SH |
3547 | if (error) { |
3548 | return error; | |
3549 | } | |
3550 | } else { | |
428b2edd | 3551 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3552 | } |
3553 | ||
4e022ec0 AW |
3554 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3555 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3556 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3557 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3558 | po->in_port); | |
2e1bfcb6 | 3559 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3560 | } |
3561 | ||
f25d0cf3 BP |
3562 | po->ofpacts = ofpacts->data; |
3563 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3564 | |
3565 | if (po->buffer_id == UINT32_MAX) { | |
3566 | po->packet = b.data; | |
3567 | po->packet_len = b.size; | |
3568 | } else { | |
3569 | po->packet = NULL; | |
3570 | po->packet_len = 0; | |
3571 | } | |
3572 | ||
3573 | return 0; | |
3574 | } | |
6c038611 BP |
3575 | \f |
3576 | /* ofputil_phy_port */ | |
3577 | ||
3578 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3579 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3580 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3581 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3582 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3583 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3584 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3585 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3586 | ||
3587 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3588 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3589 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3590 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3591 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3592 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3593 | |
9e1fd49b BP |
3594 | static enum netdev_features |
3595 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3596 | { |
3597 | uint32_t ofp10 = ntohl(ofp10_); | |
3598 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3599 | } | |
3600 | ||
9e1fd49b BP |
3601 | static ovs_be32 |
3602 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3603 | { |
3604 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3605 | } | |
c6a93eb7 | 3606 | |
9e1fd49b BP |
3607 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3608 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3609 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3610 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3611 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3612 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3613 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3614 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3615 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3616 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3617 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3618 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3619 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3620 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3621 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3622 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3623 | ||
3624 | static enum netdev_features | |
3625 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3626 | { | |
3627 | return ntohl(ofp11) & 0xffff; | |
3628 | } | |
3629 | ||
3630 | static ovs_be32 | |
3631 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3632 | { | |
3633 | return htonl(features & 0xffff); | |
3634 | } | |
3635 | ||
3636 | static enum ofperr | |
3637 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3638 | const struct ofp10_phy_port *opp) | |
3639 | { | |
3640 | memset(pp, 0, sizeof *pp); | |
3641 | ||
4e022ec0 | 3642 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3643 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3644 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3645 | ||
3646 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3647 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3648 | ||
3649 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3650 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3651 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3652 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3653 | ||
d02a5f8e BP |
3654 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3655 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3656 | |
3657 | return 0; | |
3658 | } | |
3659 | ||
3660 | static enum ofperr | |
3661 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3662 | const struct ofp11_port *op) | |
3663 | { | |
3664 | enum ofperr error; | |
3665 | ||
3666 | memset(pp, 0, sizeof *pp); | |
3667 | ||
3668 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3669 | if (error) { | |
3670 | return error; | |
3671 | } | |
3672 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3673 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3674 | ||
3675 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3676 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3677 | |
3678 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3679 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3680 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3681 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3682 | ||
3683 | pp->curr_speed = ntohl(op->curr_speed); | |
3684 | pp->max_speed = ntohl(op->max_speed); | |
3685 | ||
3686 | return 0; | |
3687 | } | |
3688 | ||
5b5a3a67 | 3689 | static size_t |
2e3fa633 SH |
3690 | ofputil_get_phy_port_size(enum ofp_version ofp_version) |
3691 | { | |
3692 | switch (ofp_version) { | |
3693 | case OFP10_VERSION: | |
3694 | return sizeof(struct ofp10_phy_port); | |
3695 | case OFP11_VERSION: | |
3696 | case OFP12_VERSION: | |
2e1ae200 | 3697 | case OFP13_VERSION: |
c37c0382 | 3698 | case OFP14_VERSION: |
2e3fa633 SH |
3699 | return sizeof(struct ofp11_port); |
3700 | default: | |
428b2edd | 3701 | OVS_NOT_REACHED(); |
2e3fa633 | 3702 | } |
5b5a3a67 JP |
3703 | } |
3704 | ||
9e1fd49b BP |
3705 | static void |
3706 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3707 | struct ofp10_phy_port *opp) | |
3708 | { | |
3709 | memset(opp, 0, sizeof *opp); | |
3710 | ||
4e022ec0 | 3711 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3712 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3713 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3714 | ||
3715 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3716 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3717 | ||
3718 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3719 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3720 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3721 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3722 | } | |
3723 | ||
3724 | static void | |
3725 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3726 | struct ofp11_port *op) | |
3727 | { | |
3728 | memset(op, 0, sizeof *op); | |
3729 | ||
3730 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3731 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3732 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3733 | ||
3734 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3735 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3736 | ||
3737 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3738 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3739 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3740 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3741 | ||
3742 | op->curr_speed = htonl(pp->curr_speed); | |
3743 | op->max_speed = htonl(pp->max_speed); | |
3744 | } | |
3745 | ||
3746 | static void | |
2e3fa633 SH |
3747 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3748 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3749 | { |
2e3fa633 SH |
3750 | switch (ofp_version) { |
3751 | case OFP10_VERSION: { | |
9e1fd49b BP |
3752 | struct ofp10_phy_port *opp; |
3753 | if (b->size + sizeof *opp <= UINT16_MAX) { | |
3754 | opp = ofpbuf_put_uninit(b, sizeof *opp); | |
3755 | ofputil_encode_ofp10_phy_port(pp, opp); | |
3756 | } | |
2e3fa633 SH |
3757 | break; |
3758 | } | |
3759 | ||
3760 | case OFP11_VERSION: | |
2e1ae200 JR |
3761 | case OFP12_VERSION: |
3762 | case OFP13_VERSION: { | |
9e1fd49b BP |
3763 | struct ofp11_port *op; |
3764 | if (b->size + sizeof *op <= UINT16_MAX) { | |
3765 | op = ofpbuf_put_uninit(b, sizeof *op); | |
3766 | ofputil_encode_ofp11_port(pp, op); | |
3767 | } | |
2e3fa633 SH |
3768 | break; |
3769 | } | |
3770 | ||
c37c0382 AC |
3771 | case OFP14_VERSION: |
3772 | OVS_NOT_REACHED(); | |
3773 | break; | |
3774 | ||
2e3fa633 | 3775 | default: |
428b2edd | 3776 | OVS_NOT_REACHED(); |
9e1fd49b BP |
3777 | } |
3778 | } | |
2be393ed JP |
3779 | |
3780 | void | |
2e3fa633 | 3781 | ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version, |
2be393ed JP |
3782 | const struct ofputil_phy_port *pp, |
3783 | struct list *replies) | |
3784 | { | |
2e3fa633 SH |
3785 | switch (ofp_version) { |
3786 | case OFP10_VERSION: { | |
2be393ed JP |
3787 | struct ofp10_phy_port *opp; |
3788 | ||
982697a4 | 3789 | opp = ofpmp_append(replies, sizeof *opp); |
2be393ed | 3790 | ofputil_encode_ofp10_phy_port(pp, opp); |
2e3fa633 SH |
3791 | break; |
3792 | } | |
3793 | ||
3794 | case OFP11_VERSION: | |
2e1ae200 JR |
3795 | case OFP12_VERSION: |
3796 | case OFP13_VERSION: { | |
2be393ed JP |
3797 | struct ofp11_port *op; |
3798 | ||
982697a4 | 3799 | op = ofpmp_append(replies, sizeof *op); |
2be393ed | 3800 | ofputil_encode_ofp11_port(pp, op); |
2e3fa633 SH |
3801 | break; |
3802 | } | |
3803 | ||
c37c0382 AC |
3804 | case OFP14_VERSION: |
3805 | OVS_NOT_REACHED(); | |
3806 | break; | |
3807 | ||
2e3fa633 | 3808 | default: |
428b2edd | 3809 | OVS_NOT_REACHED(); |
2be393ed JP |
3810 | } |
3811 | } | |
9e1fd49b BP |
3812 | \f |
3813 | /* ofputil_switch_features */ | |
3814 | ||
3815 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 3816 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
3817 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
3818 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
3819 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
3820 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
3821 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
3822 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
3823 | ||
3824 | struct ofputil_action_bit_translation { | |
3825 | enum ofputil_action_bitmap ofputil_bit; | |
3826 | int of_bit; | |
3827 | }; | |
3828 | ||
3829 | static const struct ofputil_action_bit_translation of10_action_bits[] = { | |
3830 | { OFPUTIL_A_OUTPUT, OFPAT10_OUTPUT }, | |
3831 | { OFPUTIL_A_SET_VLAN_VID, OFPAT10_SET_VLAN_VID }, | |
3832 | { OFPUTIL_A_SET_VLAN_PCP, OFPAT10_SET_VLAN_PCP }, | |
3833 | { OFPUTIL_A_STRIP_VLAN, OFPAT10_STRIP_VLAN }, | |
3834 | { OFPUTIL_A_SET_DL_SRC, OFPAT10_SET_DL_SRC }, | |
3835 | { OFPUTIL_A_SET_DL_DST, OFPAT10_SET_DL_DST }, | |
3836 | { OFPUTIL_A_SET_NW_SRC, OFPAT10_SET_NW_SRC }, | |
3837 | { OFPUTIL_A_SET_NW_DST, OFPAT10_SET_NW_DST }, | |
3838 | { OFPUTIL_A_SET_NW_TOS, OFPAT10_SET_NW_TOS }, | |
3839 | { OFPUTIL_A_SET_TP_SRC, OFPAT10_SET_TP_SRC }, | |
3840 | { OFPUTIL_A_SET_TP_DST, OFPAT10_SET_TP_DST }, | |
3841 | { OFPUTIL_A_ENQUEUE, OFPAT10_ENQUEUE }, | |
3842 | { 0, 0 }, | |
3843 | }; | |
3844 | ||
9e1fd49b BP |
3845 | static enum ofputil_action_bitmap |
3846 | decode_action_bits(ovs_be32 of_actions, | |
3847 | const struct ofputil_action_bit_translation *x) | |
3848 | { | |
3849 | enum ofputil_action_bitmap ofputil_actions; | |
3850 | ||
3851 | ofputil_actions = 0; | |
3852 | for (; x->ofputil_bit; x++) { | |
3853 | if (of_actions & htonl(1u << x->of_bit)) { | |
3854 | ofputil_actions |= x->ofputil_bit; | |
3855 | } | |
3856 | } | |
3857 | return ofputil_actions; | |
3858 | } | |
3859 | ||
60202987 SH |
3860 | static uint32_t |
3861 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
3862 | { | |
3863 | /* Handle capabilities whose bit is unique for all Open Flow versions */ | |
3864 | switch (ofp_version) { | |
3865 | case OFP10_VERSION: | |
3866 | case OFP11_VERSION: | |
3867 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
3868 | case OFP12_VERSION: | |
2e1ae200 | 3869 | case OFP13_VERSION: |
60202987 | 3870 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
c37c0382 AC |
3871 | case OFP14_VERSION: |
3872 | OVS_NOT_REACHED(); | |
3873 | break; | |
60202987 SH |
3874 | default: |
3875 | /* Caller needs to check osf->header.version itself */ | |
3876 | return 0; | |
3877 | } | |
3878 | } | |
3879 | ||
9e1fd49b BP |
3880 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
3881 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
3882 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 3883 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
3884 | * OFPERR_* value. */ |
3885 | enum ofperr | |
982697a4 | 3886 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
3887 | struct ofputil_switch_features *features, |
3888 | struct ofpbuf *b) | |
3889 | { | |
982697a4 BP |
3890 | const struct ofp_switch_features *osf; |
3891 | enum ofpraw raw; | |
3892 | ||
3893 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
3894 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 3895 | |
982697a4 | 3896 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
3897 | features->datapath_id = ntohll(osf->datapath_id); |
3898 | features->n_buffers = ntohl(osf->n_buffers); | |
3899 | features->n_tables = osf->n_tables; | |
2e1ae200 | 3900 | features->auxiliary_id = 0; |
9e1fd49b | 3901 | |
60202987 SH |
3902 | features->capabilities = ntohl(osf->capabilities) & |
3903 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 3904 | |
982697a4 | 3905 | if (b->size % ofputil_get_phy_port_size(oh->version)) { |
5b5a3a67 JP |
3906 | return OFPERR_OFPBRC_BAD_LEN; |
3907 | } | |
3908 | ||
982697a4 | 3909 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
3910 | if (osf->capabilities & htonl(OFPC10_STP)) { |
3911 | features->capabilities |= OFPUTIL_C_STP; | |
3912 | } | |
3913 | features->actions = decode_action_bits(osf->actions, of10_action_bits); | |
2e1ae200 JR |
3914 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
3915 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
3916 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
3917 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
3918 | } | |
34b28fc7 | 3919 | features->actions = 0; |
2e1ae200 JR |
3920 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
3921 | features->auxiliary_id = osf->auxiliary_id; | |
3922 | } | |
9e1fd49b BP |
3923 | } else { |
3924 | return OFPERR_OFPBRC_BAD_VERSION; | |
3925 | } | |
3926 | ||
3927 | return 0; | |
3928 | } | |
3929 | ||
982697a4 | 3930 | /* Returns true if the maximum number of ports are in 'oh'. */ |
347b7ac4 | 3931 | static bool |
982697a4 | 3932 | max_ports_in_features(const struct ofp_header *oh) |
347b7ac4 | 3933 | { |
982697a4 BP |
3934 | size_t pp_size = ofputil_get_phy_port_size(oh->version); |
3935 | return ntohs(oh->length) + pp_size > UINT16_MAX; | |
347b7ac4 JP |
3936 | } |
3937 | ||
3938 | /* Given a buffer 'b' that contains a Features Reply message, checks if | |
3939 | * it contains the maximum number of ports that will fit. If so, it | |
3940 | * returns true and removes the ports from the message. The caller | |
3941 | * should then send an OFPST_PORT_DESC stats request to get the ports, | |
3942 | * since the switch may have more ports than could be represented in the | |
3943 | * Features Reply. Otherwise, returns false. | |
3944 | */ | |
3945 | bool | |
3946 | ofputil_switch_features_ports_trunc(struct ofpbuf *b) | |
3947 | { | |
982697a4 | 3948 | struct ofp_header *oh = b->data; |
347b7ac4 | 3949 | |
982697a4 | 3950 | if (max_ports_in_features(oh)) { |
347b7ac4 | 3951 | /* Remove all the ports. */ |
982697a4 BP |
3952 | b->size = (sizeof(struct ofp_header) |
3953 | + sizeof(struct ofp_switch_features)); | |
3954 | ofpmsg_update_length(b); | |
347b7ac4 JP |
3955 | |
3956 | return true; | |
3957 | } | |
3958 | ||
3959 | return false; | |
3960 | } | |
3961 | ||
9e1fd49b BP |
3962 | static ovs_be32 |
3963 | encode_action_bits(enum ofputil_action_bitmap ofputil_actions, | |
3964 | const struct ofputil_action_bit_translation *x) | |
3965 | { | |
3966 | uint32_t of_actions; | |
3967 | ||
3968 | of_actions = 0; | |
3969 | for (; x->ofputil_bit; x++) { | |
3970 | if (ofputil_actions & x->ofputil_bit) { | |
3971 | of_actions |= 1 << x->of_bit; | |
3972 | } | |
3973 | } | |
3974 | return htonl(of_actions); | |
3975 | } | |
3976 | ||
3977 | /* Returns a buffer owned by the caller that encodes 'features' in the format | |
3978 | * required by 'protocol' with the given 'xid'. The caller should append port | |
3979 | * information to the buffer with subsequent calls to | |
3980 | * ofputil_put_switch_features_port(). */ | |
3981 | struct ofpbuf * | |
3982 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
3983 | enum ofputil_protocol protocol, ovs_be32 xid) | |
3984 | { | |
3985 | struct ofp_switch_features *osf; | |
3986 | struct ofpbuf *b; | |
2e3fa633 SH |
3987 | enum ofp_version version; |
3988 | enum ofpraw raw; | |
982697a4 BP |
3989 | |
3990 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
3991 | switch (version) { |
3992 | case OFP10_VERSION: | |
3993 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
3994 | break; | |
3995 | case OFP11_VERSION: | |
3996 | case OFP12_VERSION: | |
3997 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
3998 | break; | |
2e1ae200 | 3999 | case OFP13_VERSION: |
c37c0382 | 4000 | case OFP14_VERSION: |
2e1ae200 JR |
4001 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4002 | break; | |
2e3fa633 | 4003 | default: |
428b2edd | 4004 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4005 | } |
4006 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4007 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4008 | osf->datapath_id = htonll(features->datapath_id); |
4009 | osf->n_buffers = htonl(features->n_buffers); | |
4010 | osf->n_tables = features->n_tables; | |
4011 | ||
4012 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4013 | osf->capabilities = htonl(features->capabilities & |
4014 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4015 | switch (version) { |
4016 | case OFP10_VERSION: | |
9e1fd49b BP |
4017 | if (features->capabilities & OFPUTIL_C_STP) { |
4018 | osf->capabilities |= htonl(OFPC10_STP); | |
4019 | } | |
4020 | osf->actions = encode_action_bits(features->actions, of10_action_bits); | |
2e3fa633 | 4021 | break; |
2e1ae200 | 4022 | case OFP13_VERSION: |
c37c0382 | 4023 | case OFP14_VERSION: |
2e1ae200 JR |
4024 | osf->auxiliary_id = features->auxiliary_id; |
4025 | /* fall through */ | |
2e3fa633 SH |
4026 | case OFP11_VERSION: |
4027 | case OFP12_VERSION: | |
9e1fd49b BP |
4028 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4029 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4030 | } | |
2e3fa633 SH |
4031 | break; |
4032 | default: | |
428b2edd | 4033 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4034 | } |
4035 | ||
4036 | return b; | |
4037 | } | |
4038 | ||
4039 | /* Encodes 'pp' into the format required by the switch_features message already | |
4040 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4041 | * and appends the encoded version to 'b'. */ | |
4042 | void | |
4043 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4044 | struct ofpbuf *b) | |
4045 | { | |
982697a4 | 4046 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4047 | |
e0c91c0c SK |
4048 | if (oh->version < OFP13_VERSION) { |
4049 | ofputil_put_phy_port(oh->version, pp, b); | |
4050 | } | |
9e1fd49b BP |
4051 | } |
4052 | \f | |
4053 | /* ofputil_port_status */ | |
4054 | ||
4055 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4056 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4057 | enum ofperr | |
982697a4 | 4058 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4059 | struct ofputil_port_status *ps) |
4060 | { | |
982697a4 | 4061 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4062 | struct ofpbuf b; |
4063 | int retval; | |
4064 | ||
982697a4 BP |
4065 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4066 | ofpraw_pull_assert(&b); | |
4067 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4068 | ||
9e1fd49b BP |
4069 | if (ops->reason != OFPPR_ADD && |
4070 | ops->reason != OFPPR_DELETE && | |
4071 | ops->reason != OFPPR_MODIFY) { | |
4072 | return OFPERR_NXBRC_BAD_REASON; | |
4073 | } | |
4074 | ps->reason = ops->reason; | |
4075 | ||
982697a4 | 4076 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4077 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4078 | return retval; |
4079 | } | |
4080 | ||
4081 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4082 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4083 | * a buffer owned by the caller. */ | |
4084 | struct ofpbuf * | |
4085 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4086 | enum ofputil_protocol protocol) | |
4087 | { | |
4088 | struct ofp_port_status *ops; | |
4089 | struct ofpbuf *b; | |
2e3fa633 SH |
4090 | enum ofp_version version; |
4091 | enum ofpraw raw; | |
982697a4 BP |
4092 | |
4093 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4094 | switch (version) { |
4095 | case OFP10_VERSION: | |
4096 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4097 | break; | |
4098 | ||
4099 | case OFP11_VERSION: | |
4100 | case OFP12_VERSION: | |
2e1ae200 | 4101 | case OFP13_VERSION: |
c37c0382 | 4102 | case OFP14_VERSION: |
2e3fa633 SH |
4103 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4104 | break; | |
4105 | ||
4106 | default: | |
428b2edd | 4107 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4108 | } |
4109 | ||
4110 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4111 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4112 | ops->reason = ps->reason; |
982697a4 BP |
4113 | ofputil_put_phy_port(version, &ps->desc, b); |
4114 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4115 | return b; |
4116 | } | |
918f2b82 | 4117 | |
9e1fd49b BP |
4118 | /* ofputil_port_mod */ |
4119 | ||
4120 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in | |
4121 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4122 | enum ofperr | |
4123 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
4124 | struct ofputil_port_mod *pm) | |
4125 | { | |
982697a4 BP |
4126 | enum ofpraw raw; |
4127 | struct ofpbuf b; | |
9e1fd49b | 4128 | |
982697a4 BP |
4129 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4130 | raw = ofpraw_pull_assert(&b); | |
4131 | ||
4132 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
4133 | const struct ofp10_port_mod *opm = b.data; | |
9e1fd49b | 4134 | |
4e022ec0 | 4135 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
4136 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
4137 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
4138 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4139 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 BP |
4140 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
4141 | const struct ofp11_port_mod *opm = b.data; | |
9e1fd49b BP |
4142 | enum ofperr error; |
4143 | ||
9e1fd49b BP |
4144 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4145 | if (error) { | |
4146 | return error; | |
4147 | } | |
4148 | ||
4149 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4150 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4151 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4152 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
4153 | } else { | |
982697a4 | 4154 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4155 | } |
4156 | ||
4157 | pm->config &= pm->mask; | |
4158 | return 0; | |
4159 | } | |
4160 | ||
4161 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4162 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4163 | * owned by the caller. */ | |
4164 | struct ofpbuf * | |
4165 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4166 | enum ofputil_protocol protocol) | |
4167 | { | |
2e3fa633 | 4168 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4169 | struct ofpbuf *b; |
4170 | ||
2e3fa633 SH |
4171 | switch (ofp_version) { |
4172 | case OFP10_VERSION: { | |
9e1fd49b BP |
4173 | struct ofp10_port_mod *opm; |
4174 | ||
982697a4 BP |
4175 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4176 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4177 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4178 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4179 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4180 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4181 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4182 | break; |
4183 | } | |
4184 | ||
5fe7c919 | 4185 | case OFP11_VERSION: |
2e1ae200 JR |
4186 | case OFP12_VERSION: |
4187 | case OFP13_VERSION: { | |
9e1fd49b BP |
4188 | struct ofp11_port_mod *opm; |
4189 | ||
982697a4 BP |
4190 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4191 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4192 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4193 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4194 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4195 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4196 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4197 | break; |
4198 | } | |
c37c0382 AC |
4199 | case OFP14_VERSION: |
4200 | OVS_NOT_REACHED(); | |
4201 | break; | |
918f2b82 | 4202 | default: |
428b2edd | 4203 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4204 | } |
4205 | ||
4206 | return b; | |
4207 | } | |
4208 | ||
5deff5aa AW |
4209 | struct ofp_prop_header { |
4210 | ovs_be16 type; | |
4211 | ovs_be16 len; | |
4212 | }; | |
4213 | ||
4214 | static enum ofperr | |
4215 | ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *payload, | |
4216 | uint16_t *typep) | |
4217 | { | |
4218 | struct ofp_prop_header *oph; | |
4219 | unsigned int len; | |
4220 | ||
4221 | if (msg->size < sizeof *oph) { | |
4222 | return OFPERR_OFPTFFC_BAD_LEN; | |
4223 | } | |
4224 | ||
4225 | oph = msg->data; | |
4226 | len = ntohs(oph->len); | |
4227 | if (len < sizeof *oph || ROUND_UP(len, 8) > msg->size) { | |
4228 | return OFPERR_OFPTFFC_BAD_LEN; | |
4229 | } | |
4230 | ||
4231 | *typep = ntohs(oph->type); | |
4232 | if (payload) { | |
4233 | ofpbuf_use_const(payload, msg->data, len); | |
4234 | ofpbuf_pull(payload, sizeof *oph); | |
4235 | } | |
4236 | ofpbuf_pull(msg, ROUND_UP(len, 8)); | |
4237 | return 0; | |
4238 | } | |
4239 | ||
4240 | static void PRINTF_FORMAT(2, 3) | |
4241 | log_property(bool loose, const char *message, ...) | |
4242 | { | |
4243 | enum vlog_level level = loose ? VLL_DBG : VLL_WARN; | |
4244 | if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) { | |
4245 | va_list args; | |
4246 | ||
4247 | va_start(args, message); | |
4248 | vlog_valist(THIS_MODULE, level, message, args); | |
4249 | va_end(args); | |
4250 | } | |
4251 | } | |
4252 | ||
4253 | static enum ofperr | |
4254 | parse_table_ids(struct ofpbuf *payload, uint32_t *ids) | |
4255 | { | |
4256 | uint16_t type; | |
4257 | ||
4258 | *ids = 0; | |
4259 | while (payload->size > 0) { | |
4260 | enum ofperr error = ofputil_pull_property(payload, NULL, &type); | |
4261 | if (error) { | |
4262 | return error; | |
4263 | } | |
4264 | if (type < CHAR_BIT * sizeof *ids) { | |
4265 | *ids |= 1u << type; | |
4266 | } | |
4267 | } | |
4268 | return 0; | |
4269 | } | |
4270 | ||
4271 | static enum ofperr | |
4272 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4273 | { | |
4274 | *insts = 0; | |
4275 | while (payload->size > 0) { | |
4276 | enum ovs_instruction_type inst; | |
4277 | enum ofperr error; | |
4278 | uint16_t ofpit; | |
4279 | ||
4280 | error = ofputil_pull_property(payload, NULL, &ofpit); | |
4281 | if (error) { | |
4282 | return error; | |
4283 | } | |
4284 | ||
4285 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4286 | if (!error) { | |
4287 | *insts |= 1u << inst; | |
4288 | } else if (!loose) { | |
4289 | return error; | |
4290 | } | |
4291 | } | |
4292 | return 0; | |
4293 | } | |
4294 | ||
4295 | static enum ofperr | |
4296 | parse_table_features_next_table(struct ofpbuf *payload, | |
4297 | unsigned long int *next_tables) | |
4298 | { | |
4299 | size_t i; | |
4300 | ||
4301 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
4302 | for (i = 0; i < payload->size; i++) { | |
4303 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
4304 | if (id >= 255) { | |
4305 | return OFPERR_OFPTFFC_BAD_ARGUMENT; | |
4306 | } | |
4307 | bitmap_set1(next_tables, id); | |
4308 | } | |
4309 | return 0; | |
4310 | } | |
4311 | ||
4312 | static enum ofperr | |
4313 | parse_oxm(struct ofpbuf *b, bool loose, | |
4314 | const struct mf_field **fieldp, bool *hasmask) | |
4315 | { | |
4316 | ovs_be32 *oxmp; | |
4317 | uint32_t oxm; | |
4318 | ||
4319 | oxmp = ofpbuf_try_pull(b, sizeof *oxmp); | |
4320 | if (!oxmp) { | |
4321 | return OFPERR_OFPTFFC_BAD_LEN; | |
4322 | } | |
4323 | oxm = ntohl(*oxmp); | |
4324 | ||
4325 | /* Determine '*hasmask'. If 'oxm' is masked, convert it to the equivalent | |
4326 | * unmasked version, because the table of OXM fields we support only has | |
4327 | * masked versions of fields that we support with masks, but we should be | |
4328 | * able to parse the masked versions of those here. */ | |
4329 | *hasmask = NXM_HASMASK(oxm); | |
4330 | if (*hasmask) { | |
4331 | if (NXM_LENGTH(oxm) & 1) { | |
4332 | return OFPERR_OFPTFFC_BAD_ARGUMENT; | |
4333 | } | |
4334 | oxm = NXM_HEADER(NXM_VENDOR(oxm), NXM_FIELD(oxm), NXM_LENGTH(oxm) / 2); | |
4335 | } | |
4336 | ||
4337 | *fieldp = mf_from_nxm_header(oxm); | |
4338 | if (!*fieldp) { | |
4339 | log_property(loose, "unknown OXM field %#"PRIx32, ntohl(*oxmp)); | |
4340 | } | |
4341 | return *fieldp ? 0 : OFPERR_OFPBMC_BAD_FIELD; | |
4342 | } | |
4343 | ||
4344 | static enum ofperr | |
4345 | parse_oxms(struct ofpbuf *payload, bool loose, | |
4346 | uint64_t *exactp, uint64_t *maskedp) | |
4347 | { | |
4348 | uint64_t exact, masked; | |
4349 | ||
4350 | exact = masked = 0; | |
4351 | while (payload->size > 0) { | |
4352 | const struct mf_field *field; | |
4353 | enum ofperr error; | |
4354 | bool hasmask; | |
4355 | ||
4356 | error = parse_oxm(payload, loose, &field, &hasmask); | |
4357 | if (!error) { | |
4358 | if (hasmask) { | |
4359 | masked |= UINT64_C(1) << field->id; | |
4360 | } else { | |
4361 | exact |= UINT64_C(1) << field->id; | |
4362 | } | |
4363 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { | |
4364 | return error; | |
4365 | } | |
4366 | } | |
4367 | if (exactp) { | |
4368 | *exactp = exact; | |
4369 | } else if (exact) { | |
4370 | return OFPERR_OFPBMC_BAD_MASK; | |
4371 | } | |
4372 | if (maskedp) { | |
4373 | *maskedp = masked; | |
4374 | } else if (masked) { | |
4375 | return OFPERR_OFPBMC_BAD_MASK; | |
4376 | } | |
4377 | return 0; | |
4378 | } | |
4379 | ||
4380 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4381 | * ofputil_table_features in 'tf'. | |
4382 | * | |
4383 | * If 'loose' is true, this function ignores properties and values that it does | |
4384 | * not understand, as a controller would want to do when interpreting | |
4385 | * capabilities provided by a switch. If 'loose' is false, this function | |
4386 | * treats unknown properties and values as an error, as a switch would want to | |
4387 | * do when interpreting a configuration request made by a controller. | |
4388 | * | |
4389 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4390 | * this function multiple times for a single 'msg' iterates through the tables | |
4391 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4392 | * and not modify them between calls. | |
4393 | * | |
4394 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4395 | * a positive "enum ofperr" value. */ | |
4396 | int | |
4397 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4398 | struct ofputil_table_features *tf, bool loose) | |
4399 | { | |
4400 | struct ofp13_table_features *otf; | |
4401 | unsigned int len; | |
4402 | ||
4403 | if (!msg->l2) { | |
4404 | msg->l2 = msg->data; | |
4405 | ofpraw_pull_assert(msg); | |
4406 | } | |
4407 | ||
4408 | if (!msg->size) { | |
4409 | return EOF; | |
4410 | } | |
4411 | ||
4412 | if (msg->size < sizeof *otf) { | |
4413 | return OFPERR_OFPTFFC_BAD_LEN; | |
4414 | } | |
4415 | ||
4416 | otf = msg->data; | |
4417 | len = ntohs(otf->length); | |
4418 | if (len < sizeof *otf || len % 8 || len > msg->size) { | |
4419 | return OFPERR_OFPTFFC_BAD_LEN; | |
4420 | } | |
4421 | ofpbuf_pull(msg, sizeof *otf); | |
4422 | ||
4423 | tf->table_id = otf->table_id; | |
4424 | if (tf->table_id == OFPTT_ALL) { | |
4425 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4426 | } | |
4427 | ||
4428 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4429 | tf->metadata_match = otf->metadata_match; | |
4430 | tf->metadata_write = otf->metadata_write; | |
4431 | tf->config = ntohl(otf->config); | |
4432 | tf->max_entries = ntohl(otf->max_entries); | |
4433 | ||
4434 | while (msg->size > 0) { | |
4435 | struct ofpbuf payload; | |
4436 | enum ofperr error; | |
4437 | uint16_t type; | |
4438 | ||
4439 | error = ofputil_pull_property(msg, &payload, &type); | |
4440 | if (error) { | |
4441 | return error; | |
4442 | } | |
4443 | ||
4444 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4445 | case OFPTFPT13_INSTRUCTIONS: | |
4446 | error = parse_instruction_ids(&payload, loose, | |
4447 | &tf->nonmiss.instructions); | |
4448 | break; | |
4449 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4450 | error = parse_instruction_ids(&payload, loose, | |
4451 | &tf->miss.instructions); | |
4452 | break; | |
4453 | ||
4454 | case OFPTFPT13_NEXT_TABLES: | |
4455 | error = parse_table_features_next_table(&payload, | |
4456 | tf->nonmiss.next); | |
4457 | break; | |
4458 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4459 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4460 | break; | |
4461 | ||
4462 | case OFPTFPT13_WRITE_ACTIONS: | |
4463 | error = parse_table_ids(&payload, &tf->nonmiss.write.actions); | |
4464 | break; | |
4465 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
4466 | error = parse_table_ids(&payload, &tf->miss.write.actions); | |
4467 | break; | |
4468 | ||
4469 | case OFPTFPT13_APPLY_ACTIONS: | |
4470 | error = parse_table_ids(&payload, &tf->nonmiss.apply.actions); | |
4471 | break; | |
4472 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
4473 | error = parse_table_ids(&payload, &tf->miss.apply.actions); | |
4474 | break; | |
4475 | ||
4476 | case OFPTFPT13_MATCH: | |
4477 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4478 | break; | |
4479 | case OFPTFPT13_WILDCARDS: | |
4480 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4481 | break; | |
4482 | ||
4483 | case OFPTFPT13_WRITE_SETFIELD: | |
4484 | error = parse_oxms(&payload, loose, | |
4485 | &tf->nonmiss.write.set_fields, NULL); | |
4486 | break; | |
4487 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4488 | error = parse_oxms(&payload, loose, | |
4489 | &tf->miss.write.set_fields, NULL); | |
4490 | break; | |
4491 | case OFPTFPT13_APPLY_SETFIELD: | |
4492 | error = parse_oxms(&payload, loose, | |
4493 | &tf->nonmiss.apply.set_fields, NULL); | |
4494 | break; | |
4495 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4496 | error = parse_oxms(&payload, loose, | |
4497 | &tf->miss.apply.set_fields, NULL); | |
4498 | break; | |
4499 | ||
4500 | case OFPTFPT13_EXPERIMENTER: | |
4501 | case OFPTFPT13_EXPERIMENTER_MISS: | |
4502 | log_property(loose, | |
4503 | "unknown table features experimenter property"); | |
4504 | error = loose ? 0 : OFPERR_OFPTFFC_BAD_TYPE; | |
4505 | break; | |
4506 | } | |
4507 | if (error) { | |
4508 | return error; | |
4509 | } | |
4510 | } | |
4511 | ||
4512 | /* Fix inconsistencies: | |
4513 | * | |
4514 | * - Turn off 'mask' and 'wildcard' bits that are not in 'match', | |
4515 | * because a field must be matchable to be masked or wildcarded. | |
4516 | * | |
4517 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
4518 | * that is arbitrarily maskable can be wildcarded entirely. */ | |
4519 | tf->mask &= tf->match; | |
4520 | tf->wildcard &= tf->match; | |
4521 | ||
4522 | tf->wildcard |= tf->mask; | |
4523 | ||
4524 | return 0; | |
4525 | } | |
4526 | ||
4527 | /* Encodes and returns a request to obtain the table features of a switch. | |
4528 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4529 | struct ofpbuf * | |
4530 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4531 | { | |
4532 | struct ofpbuf *request = NULL; | |
4533 | ||
4534 | switch (ofp_version) { | |
4535 | case OFP10_VERSION: | |
4536 | case OFP11_VERSION: | |
4537 | case OFP12_VERSION: | |
4538 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4539 | "(\'-O OpenFlow13\')"); | |
4540 | case OFP13_VERSION: | |
4541 | case OFP14_VERSION: | |
4542 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, | |
4543 | ofp_version, 0); | |
4544 | break; | |
4545 | default: | |
4546 | OVS_NOT_REACHED(); | |
4547 | } | |
4548 | ||
4549 | return request; | |
4550 | } | |
4551 | ||
918f2b82 AZ |
4552 | /* ofputil_table_mod */ |
4553 | ||
4554 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in | |
4555 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4556 | enum ofperr | |
4557 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4558 | struct ofputil_table_mod *pm) | |
4559 | { | |
4560 | enum ofpraw raw; | |
4561 | struct ofpbuf b; | |
4562 | ||
4563 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4564 | raw = ofpraw_pull_assert(&b); | |
4565 | ||
4566 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
4567 | const struct ofp11_table_mod *otm = b.data; | |
4568 | ||
4569 | pm->table_id = otm->table_id; | |
4570 | pm->config = ntohl(otm->config); | |
4571 | } else { | |
4572 | return OFPERR_OFPBRC_BAD_TYPE; | |
4573 | } | |
4574 | ||
4575 | return 0; | |
4576 | } | |
4577 | ||
4578 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
4579 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4580 | * owned by the caller. */ | |
4581 | struct ofpbuf * | |
4582 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
4583 | enum ofputil_protocol protocol) | |
4584 | { | |
4585 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
4586 | struct ofpbuf *b; | |
4587 | ||
4588 | switch (ofp_version) { | |
4589 | case OFP10_VERSION: { | |
4590 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
4591 | "(\'-O OpenFlow11\')"); | |
4592 | break; | |
4593 | } | |
4594 | case OFP11_VERSION: | |
4595 | case OFP12_VERSION: | |
4596 | case OFP13_VERSION: { | |
4597 | struct ofp11_table_mod *otm; | |
2e3fa633 | 4598 | |
918f2b82 AZ |
4599 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
4600 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
4601 | otm->table_id = pm->table_id; | |
4602 | otm->config = htonl(pm->config); | |
4603 | break; | |
4604 | } | |
c37c0382 AC |
4605 | case OFP14_VERSION: |
4606 | OVS_NOT_REACHED(); | |
4607 | break; | |
2e3fa633 | 4608 | default: |
428b2edd | 4609 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4610 | } |
4611 | ||
4612 | return b; | |
4613 | } | |
2b07c8b1 | 4614 | \f |
6ea4776b JR |
4615 | /* ofputil_role_request */ |
4616 | ||
4617 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
4618 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
4619 | * OFPERR_* value. */ | |
4620 | enum ofperr | |
4621 | ofputil_decode_role_message(const struct ofp_header *oh, | |
4622 | struct ofputil_role_request *rr) | |
4623 | { | |
6ea4776b JR |
4624 | struct ofpbuf b; |
4625 | enum ofpraw raw; | |
4626 | ||
6ea4776b JR |
4627 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4628 | raw = ofpraw_pull_assert(&b); | |
4629 | ||
f4f1ea7e BP |
4630 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
4631 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
437d0d22 | 4632 | const struct ofp12_role_request *orr = ofpbuf_get_l3(&b); |
6ea4776b | 4633 | |
f4f1ea7e BP |
4634 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
4635 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
4636 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
4637 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
4638 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
4639 | } |
4640 | ||
f4f1ea7e | 4641 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
4642 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
4643 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 4644 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
4645 | rr->have_generation_id = false; |
4646 | rr->generation_id = 0; | |
4647 | } else { | |
4648 | rr->have_generation_id = true; | |
4649 | rr->generation_id = ntohll(orr->generation_id); | |
4650 | } | |
4651 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
4652 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
437d0d22 | 4653 | const struct nx_role_request *nrr = ofpbuf_get_l3(&b); |
f4f1ea7e BP |
4654 | |
4655 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
4656 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
4657 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
4658 | ||
4659 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
4660 | nrr->role != htonl(NX_ROLE_MASTER) && | |
4661 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
4662 | return OFPERR_OFPRRFC_BAD_ROLE; | |
4663 | } | |
6ea4776b | 4664 | |
f4f1ea7e BP |
4665 | rr->role = ntohl(nrr->role) + 1; |
4666 | rr->have_generation_id = false; | |
4667 | rr->generation_id = 0; | |
4668 | } else { | |
428b2edd | 4669 | OVS_NOT_REACHED(); |
6ea4776b JR |
4670 | } |
4671 | ||
6ea4776b JR |
4672 | return 0; |
4673 | } | |
4674 | ||
4675 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
4676 | * buffer owned by the caller. */ | |
4677 | struct ofpbuf * | |
4678 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 4679 | const struct ofputil_role_request *rr) |
6ea4776b | 4680 | { |
6ea4776b | 4681 | struct ofpbuf *buf; |
6ea4776b JR |
4682 | enum ofpraw raw; |
4683 | ||
f4f1ea7e | 4684 | raw = ofpraw_decode_assert(request); |
6ea4776b | 4685 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 4686 | struct ofp12_role_request *orr; |
6ea4776b | 4687 | |
f4f1ea7e BP |
4688 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
4689 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 4690 | |
147cc9d3 BP |
4691 | orr->role = htonl(rr->role); |
4692 | orr->generation_id = htonll(rr->have_generation_id | |
4693 | ? rr->generation_id | |
4694 | : UINT64_MAX); | |
f4f1ea7e BP |
4695 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
4696 | struct nx_role_request *nrr; | |
4697 | ||
4698 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
4699 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
4700 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
4701 | ||
4702 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
4703 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
4704 | nrr->role = htonl(rr->role - 1); | |
4705 | } else { | |
428b2edd | 4706 | OVS_NOT_REACHED(); |
6ea4776b | 4707 | } |
6ea4776b JR |
4708 | |
4709 | return buf; | |
4710 | } | |
4711 | \f | |
00467f73 AC |
4712 | struct ofpbuf * |
4713 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
4714 | enum ofputil_protocol protocol) | |
4715 | { | |
4716 | struct ofpbuf *buf; | |
4717 | enum ofp_version version; | |
4718 | struct ofp14_role_status *rstatus; | |
4719 | ||
4720 | version = ofputil_protocol_to_ofp_version(protocol); | |
4721 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), 0); | |
4722 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
4723 | rstatus->role = htonl(status->role); | |
4724 | rstatus->reason = status->reason; | |
4725 | rstatus->generation_id = htonll(status->generation_id); | |
4726 | ||
4727 | return buf; | |
4728 | } | |
4729 | ||
4730 | enum ofperr | |
4731 | ofputil_decode_role_status(const struct ofp_header *oh, | |
4732 | struct ofputil_role_status *rs) | |
4733 | { | |
4734 | struct ofpbuf b; | |
4735 | enum ofpraw raw; | |
4736 | const struct ofp14_role_status *r; | |
4737 | ||
4738 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4739 | raw = ofpraw_pull_assert(&b); | |
4740 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
4741 | ||
437d0d22 | 4742 | r = ofpbuf_get_l3(&b); |
00467f73 AC |
4743 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
4744 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
4745 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
4746 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
4747 | return OFPERR_OFPRRFC_BAD_ROLE; | |
4748 | } | |
4749 | ||
4750 | rs->role = ntohl(r->role); | |
4751 | rs->generation_id = ntohll(r->generation_id); | |
4752 | rs->reason = r->reason; | |
4753 | ||
4754 | return 0; | |
4755 | } | |
4756 | ||
307975da SH |
4757 | /* Table stats. */ |
4758 | ||
4759 | static void | |
4760 | ofputil_put_ofp10_table_stats(const struct ofp12_table_stats *in, | |
4761 | struct ofpbuf *buf) | |
4762 | { | |
4763 | struct wc_map { | |
31a9e63f | 4764 | enum ofp10_flow_wildcards wc10; |
307975da SH |
4765 | enum oxm12_ofb_match_fields mf12; |
4766 | }; | |
4767 | ||
4768 | static const struct wc_map wc_map[] = { | |
4769 | { OFPFW10_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4770 | { OFPFW10_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4771 | { OFPFW10_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4772 | { OFPFW10_DL_DST, OFPXMT12_OFB_ETH_DST}, | |
4773 | { OFPFW10_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4774 | { OFPFW10_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4775 | { OFPFW10_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4776 | { OFPFW10_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4777 | { OFPFW10_NW_SRC_MASK, OFPXMT12_OFB_IPV4_SRC }, | |
4778 | { OFPFW10_NW_DST_MASK, OFPXMT12_OFB_IPV4_DST }, | |
4779 | { OFPFW10_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4780 | { OFPFW10_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4781 | }; | |
4782 | ||
4783 | struct ofp10_table_stats *out; | |
4784 | const struct wc_map *p; | |
4785 | ||
3bdc692b | 4786 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4787 | out->table_id = in->table_id; |
3bdc692b | 4788 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4789 | out->wildcards = 0; |
4790 | for (p = wc_map; p < &wc_map[ARRAY_SIZE(wc_map)]; p++) { | |
4791 | if (in->wildcards & htonll(1ULL << p->mf12)) { | |
4792 | out->wildcards |= htonl(p->wc10); | |
4793 | } | |
4794 | } | |
4795 | out->max_entries = in->max_entries; | |
4796 | out->active_count = in->active_count; | |
4797 | put_32aligned_be64(&out->lookup_count, in->lookup_count); | |
4798 | put_32aligned_be64(&out->matched_count, in->matched_count); | |
4799 | } | |
4800 | ||
4801 | static ovs_be32 | |
4802 | oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12) | |
4803 | { | |
4804 | struct map { | |
4805 | enum ofp11_flow_match_fields fmf11; | |
4806 | enum oxm12_ofb_match_fields mf12; | |
4807 | }; | |
4808 | ||
4809 | static const struct map map[] = { | |
4810 | { OFPFMF11_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4811 | { OFPFMF11_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4812 | { OFPFMF11_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4813 | { OFPFMF11_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4814 | { OFPFMF11_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4815 | { OFPFMF11_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4816 | { OFPFMF11_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4817 | { OFPFMF11_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4818 | { OFPFMF11_MPLS_LABEL, OFPXMT12_OFB_MPLS_LABEL }, | |
4819 | { OFPFMF11_MPLS_TC, OFPXMT12_OFB_MPLS_TC }, | |
4820 | /* I don't know what OFPFMF11_TYPE means. */ | |
4821 | { OFPFMF11_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4822 | { OFPFMF11_DL_DST, OFPXMT12_OFB_ETH_DST }, | |
4823 | { OFPFMF11_NW_SRC, OFPXMT12_OFB_IPV4_SRC }, | |
4824 | { OFPFMF11_NW_DST, OFPXMT12_OFB_IPV4_DST }, | |
4825 | { OFPFMF11_METADATA, OFPXMT12_OFB_METADATA }, | |
4826 | }; | |
4827 | ||
4828 | const struct map *p; | |
4829 | uint32_t fmf11; | |
4830 | ||
4831 | fmf11 = 0; | |
4832 | for (p = map; p < &map[ARRAY_SIZE(map)]; p++) { | |
4833 | if (oxm12 & htonll(1ULL << p->mf12)) { | |
4834 | fmf11 |= p->fmf11; | |
4835 | } | |
4836 | } | |
4837 | return htonl(fmf11); | |
4838 | } | |
4839 | ||
4840 | static void | |
4841 | ofputil_put_ofp11_table_stats(const struct ofp12_table_stats *in, | |
4842 | struct ofpbuf *buf) | |
4843 | { | |
4844 | struct ofp11_table_stats *out; | |
4845 | ||
3bdc692b | 4846 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4847 | out->table_id = in->table_id; |
3bdc692b | 4848 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4849 | out->wildcards = oxm12_to_ofp11_flow_match_fields(in->wildcards); |
4850 | out->match = oxm12_to_ofp11_flow_match_fields(in->match); | |
4851 | out->instructions = in->instructions; | |
4852 | out->write_actions = in->write_actions; | |
4853 | out->apply_actions = in->apply_actions; | |
4854 | out->config = in->config; | |
4855 | out->max_entries = in->max_entries; | |
4856 | out->active_count = in->active_count; | |
4857 | out->lookup_count = in->lookup_count; | |
4858 | out->matched_count = in->matched_count; | |
4859 | } | |
4860 | ||
6240624b BP |
4861 | static void |
4862 | ofputil_put_ofp12_table_stats(const struct ofp12_table_stats *in, | |
4863 | struct ofpbuf *buf) | |
4864 | { | |
4865 | struct ofp12_table_stats *out = ofpbuf_put(buf, in, sizeof *in); | |
4866 | ||
4867 | /* Trim off OF1.3-only capabilities. */ | |
4868 | out->match &= htonll(OFPXMT12_MASK); | |
4869 | out->wildcards &= htonll(OFPXMT12_MASK); | |
4870 | out->write_setfields &= htonll(OFPXMT12_MASK); | |
4871 | out->apply_setfields &= htonll(OFPXMT12_MASK); | |
4872 | } | |
4873 | ||
2e1ae200 JR |
4874 | static void |
4875 | ofputil_put_ofp13_table_stats(const struct ofp12_table_stats *in, | |
4876 | struct ofpbuf *buf) | |
4877 | { | |
4878 | struct ofp13_table_stats *out; | |
4879 | ||
4880 | /* OF 1.3 splits table features off the ofp_table_stats, | |
4881 | * so there is not much here. */ | |
4882 | ||
4883 | out = ofpbuf_put_uninit(buf, sizeof *out); | |
4884 | out->table_id = in->table_id; | |
4885 | out->active_count = in->active_count; | |
4886 | out->lookup_count = in->lookup_count; | |
4887 | out->matched_count = in->matched_count; | |
4888 | } | |
4889 | ||
307975da SH |
4890 | struct ofpbuf * |
4891 | ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats[], int n, | |
4892 | const struct ofp_header *request) | |
4893 | { | |
4894 | struct ofpbuf *reply; | |
4895 | int i; | |
4896 | ||
4897 | reply = ofpraw_alloc_stats_reply(request, n * sizeof *stats); | |
4898 | ||
6240624b BP |
4899 | for (i = 0; i < n; i++) { |
4900 | switch ((enum ofp_version) request->version) { | |
4901 | case OFP10_VERSION: | |
307975da | 4902 | ofputil_put_ofp10_table_stats(&stats[i], reply); |
6240624b | 4903 | break; |
307975da | 4904 | |
6240624b | 4905 | case OFP11_VERSION: |
307975da | 4906 | ofputil_put_ofp11_table_stats(&stats[i], reply); |
6240624b | 4907 | break; |
307975da | 4908 | |
6240624b BP |
4909 | case OFP12_VERSION: |
4910 | ofputil_put_ofp12_table_stats(&stats[i], reply); | |
4911 | break; | |
307975da | 4912 | |
6240624b | 4913 | case OFP13_VERSION: |
c37c0382 | 4914 | case OFP14_VERSION: |
2e1ae200 | 4915 | ofputil_put_ofp13_table_stats(&stats[i], reply); |
6240624b | 4916 | break; |
2e1ae200 | 4917 | |
6240624b | 4918 | default: |
428b2edd | 4919 | OVS_NOT_REACHED(); |
6240624b | 4920 | } |
307975da SH |
4921 | } |
4922 | ||
4923 | return reply; | |
4924 | } | |
4925 | \f | |
2b07c8b1 BP |
4926 | /* ofputil_flow_monitor_request */ |
4927 | ||
4928 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
4929 | * ofputil_flow_monitor_request in 'rq'. | |
4930 | * | |
4931 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
4932 | * message. Calling this function multiple times for a single 'msg' iterates | |
4933 | * through the requests. The caller must initially leave 'msg''s layer | |
4934 | * pointers null and not modify them between calls. | |
4935 | * | |
4936 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
4937 | * otherwise an OFPERR_* value. */ | |
4938 | int | |
4939 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
4940 | struct ofpbuf *msg) | |
4941 | { | |
4942 | struct nx_flow_monitor_request *nfmr; | |
4943 | uint16_t flags; | |
4944 | ||
4945 | if (!msg->l2) { | |
4946 | msg->l2 = msg->data; | |
982697a4 | 4947 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
4948 | } |
4949 | ||
4950 | if (!msg->size) { | |
4951 | return EOF; | |
4952 | } | |
4953 | ||
4954 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
4955 | if (!nfmr) { | |
437d0d22 | 4956 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
2b07c8b1 BP |
4957 | "leftover bytes at end", msg->size); |
4958 | return OFPERR_OFPBRC_BAD_LEN; | |
4959 | } | |
4960 | ||
4961 | flags = ntohs(nfmr->flags); | |
4962 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
4963 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
4964 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
4965 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
4966 | flags); | |
4967 | return OFPERR_NXBRC_FM_BAD_FLAGS; | |
4968 | } | |
4969 | ||
4970 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
4971 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4972 | } | |
4973 | ||
4974 | rq->id = ntohl(nfmr->id); | |
4975 | rq->flags = flags; | |
4e022ec0 | 4976 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
4977 | rq->table_id = nfmr->table_id; |
4978 | ||
81a76618 | 4979 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
4980 | } |
4981 | ||
4982 | void | |
4983 | ofputil_append_flow_monitor_request( | |
4984 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
4985 | { | |
4986 | struct nx_flow_monitor_request *nfmr; | |
4987 | size_t start_ofs; | |
4988 | int match_len; | |
4989 | ||
4990 | if (!msg->size) { | |
982697a4 | 4991 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
4992 | } |
4993 | ||
4994 | start_ofs = msg->size; | |
4995 | ofpbuf_put_zeros(msg, sizeof *nfmr); | |
7623f4dd | 4996 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
4997 | |
4998 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
4999 | nfmr->id = htonl(rq->id); | |
5000 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 5001 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
5002 | nfmr->match_len = htons(match_len); |
5003 | nfmr->table_id = rq->table_id; | |
5004 | } | |
5005 | ||
5006 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
5007 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 5008 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
5009 | * |
5010 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
5011 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
5012 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
5013 | * will point into the 'ofpacts' buffer. | |
5014 | * | |
5015 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
5016 | * this function multiple times for a single 'msg' iterates through the | |
5017 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
5018 | * not modify them between calls. | |
5019 | * | |
5020 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
5021 | * otherwise an OFPERR_* value. */ | |
5022 | int | |
5023 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
5024 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
5025 | { | |
5026 | struct nx_flow_update_header *nfuh; | |
5027 | unsigned int length; | |
e3f8f887 | 5028 | struct ofp_header *oh; |
2b07c8b1 BP |
5029 | |
5030 | if (!msg->l2) { | |
5031 | msg->l2 = msg->data; | |
982697a4 | 5032 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5033 | } |
5034 | ||
5035 | if (!msg->size) { | |
5036 | return EOF; | |
5037 | } | |
5038 | ||
5039 | if (msg->size < sizeof(struct nx_flow_update_header)) { | |
5040 | goto bad_len; | |
5041 | } | |
5042 | ||
e3f8f887 JR |
5043 | oh = msg->l2; |
5044 | ||
2b07c8b1 BP |
5045 | nfuh = msg->data; |
5046 | update->event = ntohs(nfuh->event); | |
5047 | length = ntohs(nfuh->length); | |
5048 | if (length > msg->size || length % 8) { | |
5049 | goto bad_len; | |
5050 | } | |
5051 | ||
5052 | if (update->event == NXFME_ABBREV) { | |
5053 | struct nx_flow_update_abbrev *nfua; | |
5054 | ||
5055 | if (length != sizeof *nfua) { | |
5056 | goto bad_len; | |
5057 | } | |
5058 | ||
5059 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
5060 | update->xid = nfua->xid; | |
5061 | return 0; | |
5062 | } else if (update->event == NXFME_ADDED | |
5063 | || update->event == NXFME_DELETED | |
5064 | || update->event == NXFME_MODIFIED) { | |
5065 | struct nx_flow_update_full *nfuf; | |
5066 | unsigned int actions_len; | |
5067 | unsigned int match_len; | |
5068 | enum ofperr error; | |
5069 | ||
5070 | if (length < sizeof *nfuf) { | |
5071 | goto bad_len; | |
5072 | } | |
5073 | ||
5074 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
5075 | match_len = ntohs(nfuf->match_len); | |
5076 | if (sizeof *nfuf + match_len > length) { | |
5077 | goto bad_len; | |
5078 | } | |
5079 | ||
5080 | update->reason = ntohs(nfuf->reason); | |
5081 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
5082 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
5083 | update->table_id = nfuf->table_id; | |
5084 | update->cookie = nfuf->cookie; | |
81a76618 | 5085 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 5086 | |
81a76618 | 5087 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
5088 | if (error) { |
5089 | return error; | |
5090 | } | |
5091 | ||
5092 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
5093 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5094 | ofpacts); | |
2b07c8b1 BP |
5095 | if (error) { |
5096 | return error; | |
5097 | } | |
5098 | ||
5099 | update->ofpacts = ofpacts->data; | |
5100 | update->ofpacts_len = ofpacts->size; | |
5101 | return 0; | |
5102 | } else { | |
5103 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
5104 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
5105 | ntohs(nfuh->event)); | |
15549878 | 5106 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
5107 | } |
5108 | ||
5109 | bad_len: | |
437d0d22 | 5110 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
2b07c8b1 BP |
5111 | "leftover bytes at end", msg->size); |
5112 | return OFPERR_OFPBRC_BAD_LEN; | |
5113 | } | |
5114 | ||
5115 | uint32_t | |
5116 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
5117 | { | |
982697a4 BP |
5118 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
5119 | ||
5120 | return ntohl(cancel->id); | |
2b07c8b1 | 5121 | } |
9e1fd49b | 5122 | |
2b07c8b1 BP |
5123 | struct ofpbuf * |
5124 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
5125 | { | |
5126 | struct nx_flow_monitor_cancel *nfmc; | |
5127 | struct ofpbuf *msg; | |
5128 | ||
982697a4 BP |
5129 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
5130 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
5131 | nfmc->id = htonl(id); |
5132 | return msg; | |
5133 | } | |
5134 | ||
5135 | void | |
5136 | ofputil_start_flow_update(struct list *replies) | |
5137 | { | |
5138 | struct ofpbuf *msg; | |
5139 | ||
982697a4 BP |
5140 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
5141 | htonl(0), 1024); | |
2b07c8b1 BP |
5142 | |
5143 | list_init(replies); | |
5144 | list_push_back(replies, &msg->list_node); | |
5145 | } | |
5146 | ||
5147 | void | |
5148 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
5149 | struct list *replies) | |
5150 | { | |
5151 | struct nx_flow_update_header *nfuh; | |
5152 | struct ofpbuf *msg; | |
5153 | size_t start_ofs; | |
e3f8f887 | 5154 | enum ofp_version version; |
2b07c8b1 BP |
5155 | |
5156 | msg = ofpbuf_from_list(list_back(replies)); | |
5157 | start_ofs = msg->size; | |
e3f8f887 | 5158 | version = ((struct ofp_header *)msg->l2)->version; |
2b07c8b1 BP |
5159 | |
5160 | if (update->event == NXFME_ABBREV) { | |
5161 | struct nx_flow_update_abbrev *nfua; | |
5162 | ||
5163 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
5164 | nfua->xid = update->xid; | |
5165 | } else { | |
5166 | struct nx_flow_update_full *nfuf; | |
5167 | int match_len; | |
5168 | ||
5169 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 5170 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
5171 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
5172 | version); | |
2b07c8b1 BP |
5173 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
5174 | nfuf->reason = htons(update->reason); | |
81a76618 | 5175 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
5176 | nfuf->idle_timeout = htons(update->idle_timeout); |
5177 | nfuf->hard_timeout = htons(update->hard_timeout); | |
5178 | nfuf->match_len = htons(match_len); | |
5179 | nfuf->table_id = update->table_id; | |
5180 | nfuf->cookie = update->cookie; | |
5181 | } | |
5182 | ||
5183 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
5184 | nfuh->length = htons(msg->size - start_ofs); | |
5185 | nfuh->event = htons(update->event); | |
5186 | ||
982697a4 | 5187 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
5188 | } |
5189 | \f | |
c6a93eb7 | 5190 | struct ofpbuf * |
de0f3156 SH |
5191 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
5192 | enum ofputil_protocol protocol) | |
c6a93eb7 | 5193 | { |
de0f3156 | 5194 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
5195 | struct ofpbuf *msg; |
5196 | size_t size; | |
5197 | ||
982697a4 | 5198 | size = po->ofpacts_len; |
c6a93eb7 BP |
5199 | if (po->buffer_id == UINT32_MAX) { |
5200 | size += po->packet_len; | |
5201 | } | |
5202 | ||
de0f3156 SH |
5203 | switch (ofp_version) { |
5204 | case OFP10_VERSION: { | |
31a9e63f | 5205 | struct ofp10_packet_out *opo; |
de0f3156 SH |
5206 | size_t actions_ofs; |
5207 | ||
5208 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
5209 | ofpbuf_put_zeros(msg, sizeof *opo); | |
5210 | actions_ofs = msg->size; | |
e3f8f887 JR |
5211 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5212 | ofp_version); | |
de0f3156 | 5213 | |
437d0d22 | 5214 | opo = ofpbuf_get_l3(msg); |
de0f3156 | 5215 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 5216 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
de0f3156 SH |
5217 | opo->actions_len = htons(msg->size - actions_ofs); |
5218 | break; | |
5219 | } | |
f25d0cf3 | 5220 | |
de0f3156 | 5221 | case OFP11_VERSION: |
2e1ae200 | 5222 | case OFP12_VERSION: |
c37c0382 AC |
5223 | case OFP13_VERSION: |
5224 | case OFP14_VERSION:{ | |
7c1b1a0d SH |
5225 | struct ofp11_packet_out *opo; |
5226 | size_t len; | |
5227 | ||
5228 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
5229 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
5230 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5231 | ofp_version); | |
437d0d22 | 5232 | opo = ofpbuf_get_l3(msg); |
7c1b1a0d SH |
5233 | opo->buffer_id = htonl(po->buffer_id); |
5234 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
5235 | opo->actions_len = htons(len); | |
5236 | break; | |
5237 | } | |
5238 | ||
de0f3156 | 5239 | default: |
428b2edd | 5240 | OVS_NOT_REACHED(); |
de0f3156 | 5241 | } |
f25d0cf3 | 5242 | |
c6a93eb7 BP |
5243 | if (po->buffer_id == UINT32_MAX) { |
5244 | ofpbuf_put(msg, po->packet, po->packet_len); | |
5245 | } | |
f25d0cf3 | 5246 | |
982697a4 | 5247 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
5248 | |
5249 | return msg; | |
5250 | } | |
d1e2cf21 | 5251 | \f |
fa37b408 BP |
5252 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
5253 | struct ofpbuf * | |
1a126c0c | 5254 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 5255 | { |
1a126c0c | 5256 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 5257 | htonl(0), 0); |
fa37b408 BP |
5258 | } |
5259 | ||
5260 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
5261 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
5262 | struct ofpbuf * | |
5263 | make_echo_reply(const struct ofp_header *rq) | |
5264 | { | |
982697a4 BP |
5265 | struct ofpbuf rq_buf; |
5266 | struct ofpbuf *reply; | |
5267 | ||
5268 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
5269 | ofpraw_pull_assert(&rq_buf); | |
5270 | ||
5271 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); | |
5272 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
5273 | return reply; | |
fa37b408 BP |
5274 | } |
5275 | ||
efb80167 | 5276 | struct ofpbuf * |
a0ae0b6e | 5277 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 5278 | { |
a0ae0b6e SH |
5279 | enum ofpraw type; |
5280 | ||
5281 | switch (ofp_version) { | |
c37c0382 | 5282 | case OFP14_VERSION: |
2e1ae200 | 5283 | case OFP13_VERSION: |
a0ae0b6e SH |
5284 | case OFP12_VERSION: |
5285 | case OFP11_VERSION: | |
5286 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
5287 | break; | |
5288 | ||
5289 | case OFP10_VERSION: | |
5290 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
5291 | break; | |
5292 | ||
5293 | default: | |
428b2edd | 5294 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
5295 | } |
5296 | ||
5297 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
5298 | } |
5299 | ||
7257b535 BP |
5300 | const char * |
5301 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
5302 | { | |
5303 | switch (flags & OFPC_FRAG_MASK) { | |
5304 | case OFPC_FRAG_NORMAL: return "normal"; | |
5305 | case OFPC_FRAG_DROP: return "drop"; | |
5306 | case OFPC_FRAG_REASM: return "reassemble"; | |
5307 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
5308 | } | |
5309 | ||
428b2edd | 5310 | OVS_NOT_REACHED(); |
7257b535 BP |
5311 | } |
5312 | ||
5313 | bool | |
5314 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
5315 | { | |
5316 | if (!strcasecmp(s, "normal")) { | |
5317 | *flags = OFPC_FRAG_NORMAL; | |
5318 | } else if (!strcasecmp(s, "drop")) { | |
5319 | *flags = OFPC_FRAG_DROP; | |
5320 | } else if (!strcasecmp(s, "reassemble")) { | |
5321 | *flags = OFPC_FRAG_REASM; | |
5322 | } else if (!strcasecmp(s, "nx-match")) { | |
5323 | *flags = OFPC_FRAG_NX_MATCH; | |
5324 | } else { | |
5325 | return false; | |
5326 | } | |
5327 | return true; | |
5328 | } | |
5329 | ||
7b7503ea BP |
5330 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
5331 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
5332 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 5333 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
5334 | * |
5335 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
5336 | enum ofperr | |
4e022ec0 | 5337 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
5338 | { |
5339 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
5340 | ||
4e022ec0 AW |
5341 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
5342 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 5343 | return 0; |
4e022ec0 AW |
5344 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
5345 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
5346 | return 0; |
5347 | } else { | |
bc146369 | 5348 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
5349 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
5350 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
5351 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
5352 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
5353 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
5354 | } | |
5355 | } | |
5356 | ||
5357 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
5358 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
5359 | * | |
5360 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
5361 | ovs_be32 | |
4e022ec0 | 5362 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 5363 | { |
4e022ec0 AW |
5364 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
5365 | ? ofp_to_u16(ofp10_port) | |
5366 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
5367 | } |
5368 | ||
39dc9082 BP |
5369 | #define OFPUTIL_NAMED_PORTS \ |
5370 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
5371 | OFPUTIL_NAMED_PORT(TABLE) \ | |
5372 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
5373 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
5374 | OFPUTIL_NAMED_PORT(ALL) \ | |
5375 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
5376 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
7f05e7ab JR |
5377 | OFPUTIL_NAMED_PORT(ANY) |
5378 | ||
5379 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
5380 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
5381 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
5382 | OFPUTIL_NAMED_PORT(NONE) |
5383 | ||
8010100b BP |
5384 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
5385 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
5386 | * (e.g. "LOCAL"). | |
c6100d92 | 5387 | * |
8010100b BP |
5388 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
5389 | * or name. The caller should issue an error message in this case, because | |
5390 | * this function usually does not. (This gives the caller an opportunity to | |
5391 | * look up the port name another way, e.g. by contacting the switch and listing | |
5392 | * the names of all its ports). | |
c6100d92 BP |
5393 | * |
5394 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
5395 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
5396 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 5397 | bool |
4e022ec0 | 5398 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 5399 | { |
4e022ec0 | 5400 | uint32_t port32; |
c6100d92 | 5401 | |
8010100b | 5402 | *portp = 0; |
c6100d92 | 5403 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
5404 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
5405 | /* Pass. */ | |
5406 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
5407 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
5408 | "be translated to %u when talking to an OF1.1 or " | |
5409 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 5410 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
5411 | char name[OFP_MAX_PORT_NAME_LEN]; |
5412 | ||
5413 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
5414 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
5415 | "for compatibility with OpenFlow 1.1 and later", | |
5416 | name, port32); | |
4e022ec0 | 5417 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 5418 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 5419 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 5420 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 5421 | return false; |
c6100d92 | 5422 | } else { |
4e022ec0 | 5423 | port32 -= OFPP11_OFFSET; |
c6100d92 | 5424 | } |
4e022ec0 AW |
5425 | |
5426 | *portp = u16_to_ofp(port32); | |
5427 | return true; | |
c6100d92 BP |
5428 | } else { |
5429 | struct pair { | |
5430 | const char *name; | |
4e022ec0 | 5431 | ofp_port_t value; |
c6100d92 BP |
5432 | }; |
5433 | static const struct pair pairs[] = { | |
39dc9082 | 5434 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 5435 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 5436 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
5437 | }; |
5438 | const struct pair *p; | |
39dc9082 | 5439 | |
c6100d92 BP |
5440 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
5441 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
5442 | *portp = p->value; |
5443 | return true; | |
c6100d92 | 5444 | } |
39dc9082 | 5445 | } |
8010100b | 5446 | return false; |
39dc9082 | 5447 | } |
39dc9082 BP |
5448 | } |
5449 | ||
5450 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
5451 | * Most ports' string representation is just the port number, but for special | |
5452 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
5453 | void | |
4e022ec0 | 5454 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 5455 | { |
28b11432 BP |
5456 | char name[OFP_MAX_PORT_NAME_LEN]; |
5457 | ||
5458 | ofputil_port_to_string(port, name, sizeof name); | |
5459 | ds_put_cstr(s, name); | |
5460 | } | |
39dc9082 | 5461 | |
28b11432 BP |
5462 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
5463 | * representation of OpenFlow port number 'port'. Most ports are represented | |
5464 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
5465 | * by name, e.g. "LOCAL". */ | |
5466 | void | |
5467 | ofputil_port_to_string(ofp_port_t port, | |
5468 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
5469 | { | |
39dc9082 | 5470 | switch (port) { |
28b11432 BP |
5471 | #define OFPUTIL_NAMED_PORT(NAME) \ |
5472 | case OFPP_##NAME: \ | |
5473 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
5474 | break; | |
39dc9082 BP |
5475 | OFPUTIL_NAMED_PORTS |
5476 | #undef OFPUTIL_NAMED_PORT | |
5477 | ||
5478 | default: | |
28b11432 BP |
5479 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
5480 | break; | |
39dc9082 | 5481 | } |
39dc9082 BP |
5482 | } |
5483 | ||
7395c052 NZ |
5484 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
5485 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
5486 | * (either "ANY" or "ALL"). | |
5487 | * | |
5488 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
5489 | * name. */ | |
5490 | bool | |
5491 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
5492 | { | |
5493 | if (!strcasecmp(s, "any")) { | |
5494 | *group_idp = OFPG11_ANY; | |
5495 | } else if (!strcasecmp(s, "all")) { | |
5496 | *group_idp = OFPG11_ALL; | |
5497 | } else if (!str_to_uint(s, 10, group_idp)) { | |
5498 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
5499 | "32-bit nonnegative integers or the keywords ANY or " | |
5500 | "ALL.)", s); | |
5501 | return false; | |
5502 | } | |
5503 | ||
5504 | return true; | |
5505 | } | |
5506 | ||
5507 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
5508 | * Most groups' string representation is just the number, but for special | |
5509 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
5510 | void | |
5511 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
5512 | { | |
5513 | char name[MAX_GROUP_NAME_LEN]; | |
5514 | ||
5515 | ofputil_group_to_string(group_id, name, sizeof name); | |
5516 | ds_put_cstr(s, name); | |
5517 | } | |
5518 | ||
5519 | ||
5520 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
5521 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
5522 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
5523 | * by name, e.g. "ALL". */ | |
5524 | void | |
5525 | ofputil_group_to_string(uint32_t group_id, | |
5526 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
5527 | { | |
5528 | switch (group_id) { | |
5529 | case OFPG11_ALL: | |
5530 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
5531 | break; | |
5532 | ||
5533 | case OFPG11_ANY: | |
5534 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
5535 | break; | |
5536 | ||
5537 | default: | |
5538 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
5539 | break; | |
5540 | } | |
5541 | } | |
5542 | ||
2be393ed JP |
5543 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
5544 | * 'ofp_version', tries to pull the first element from the array. If | |
5545 | * successful, initializes '*pp' with an abstract representation of the | |
5546 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
5547 | * On an error, returns a positive OFPERR_* value. */ | |
5548 | int | |
2e3fa633 | 5549 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
5550 | struct ofputil_phy_port *pp) |
5551 | { | |
2e3fa633 SH |
5552 | switch (ofp_version) { |
5553 | case OFP10_VERSION: { | |
2be393ed JP |
5554 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
5555 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
5556 | } |
5557 | case OFP11_VERSION: | |
2e1ae200 JR |
5558 | case OFP12_VERSION: |
5559 | case OFP13_VERSION: { | |
2be393ed JP |
5560 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
5561 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
5562 | } | |
c37c0382 AC |
5563 | case OFP14_VERSION: |
5564 | OVS_NOT_REACHED(); | |
5565 | break; | |
2e3fa633 | 5566 | default: |
428b2edd | 5567 | OVS_NOT_REACHED(); |
2e3fa633 | 5568 | } |
2be393ed JP |
5569 | } |
5570 | ||
5571 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type | |
5572 | * 'ofp_version', returns the number of elements. */ | |
5573 | size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b) | |
5574 | { | |
5b5a3a67 | 5575 | return b->size / ofputil_get_phy_port_size(ofp_version); |
2be393ed JP |
5576 | } |
5577 | ||
e3f8f887 JR |
5578 | /* ofp-util.def lists the mapping from names to action. */ |
5579 | static const char *const names[OFPUTIL_N_ACTIONS] = { | |
5580 | NULL, | |
3ddcaf2d BP |
5581 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME, |
5582 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, | |
9c4dbc1c | 5583 | #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, |
3ddcaf2d | 5584 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, |
e23ae585 | 5585 | #include "ofp-util.def" |
e3f8f887 | 5586 | }; |
e23ae585 | 5587 | |
e3f8f887 JR |
5588 | /* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if |
5589 | * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 | |
5590 | * if 'name' is not the name of any action. */ | |
5591 | int | |
5592 | ofputil_action_code_from_name(const char *name) | |
5593 | { | |
a00d4bd0 | 5594 | const char *const *p; |
e23ae585 BP |
5595 | |
5596 | for (p = names; p < &names[ARRAY_SIZE(names)]; p++) { | |
5597 | if (*p && !strcasecmp(name, *p)) { | |
5598 | return p - names; | |
5599 | } | |
5600 | } | |
5601 | return -1; | |
5602 | } | |
5603 | ||
e3f8f887 JR |
5604 | /* Returns name corresponding to the 'enum ofputil_action_code', |
5605 | * or "Unkonwn action", if the name is not available. */ | |
5606 | const char * | |
5607 | ofputil_action_name_from_code(enum ofputil_action_code code) | |
5608 | { | |
5609 | return code < (int)OFPUTIL_N_ACTIONS && names[code] ? names[code] | |
5610 | : "Unknown action"; | |
5611 | } | |
5612 | ||
5deff5aa AW |
5613 | enum ofputil_action_code |
5614 | ofputil_action_code_from_ofp13_action(enum ofp13_action_type type) | |
5615 | { | |
5616 | switch (type) { | |
5617 | ||
5618 | #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
5619 | case ENUM: \ | |
5620 | return OFPUTIL_##ENUM; | |
5621 | #include "ofp-util.def" | |
5622 | ||
5623 | default: | |
5624 | return OFPUTIL_ACTION_INVALID; | |
5625 | } | |
5626 | } | |
5627 | ||
93996add BP |
5628 | /* Appends an action of the type specified by 'code' to 'buf' and returns the |
5629 | * action. Initializes the parts of 'action' that identify it as having type | |
5630 | * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that | |
5631 | * have variable length, the length used and cleared is that of struct | |
5632 | * <STRUCT>. */ | |
5633 | void * | |
5634 | ofputil_put_action(enum ofputil_action_code code, struct ofpbuf *buf) | |
5635 | { | |
5636 | switch (code) { | |
690a61c5 | 5637 | case OFPUTIL_ACTION_INVALID: |
9c4dbc1c AW |
5638 | #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM: |
5639 | #include "ofp-util.def" | |
428b2edd | 5640 | OVS_NOT_REACHED(); |
690a61c5 | 5641 | |
3ddcaf2d BP |
5642 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
5643 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5644 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
93996add BP |
5645 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); |
5646 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
5647 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5648 | #include "ofp-util.def" | |
5649 | } | |
428b2edd | 5650 | OVS_NOT_REACHED(); |
93996add BP |
5651 | } |
5652 | ||
08f94c0e | 5653 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
93996add BP |
5654 | void \ |
5655 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5656 | { \ | |
5657 | memset(s, 0, sizeof *s); \ | |
5658 | s->type = htons(ENUM); \ | |
5659 | s->len = htons(sizeof *s); \ | |
5660 | } \ | |
5661 | \ | |
5662 | struct STRUCT * \ | |
5663 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5664 | { \ | |
5665 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5666 | ofputil_init_##ENUM(s); \ | |
5667 | return s; \ | |
5668 | } | |
3ddcaf2d BP |
5669 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5670 | OFPAT10_ACTION(ENUM, STRUCT, NAME) | |
9c4dbc1c AW |
5671 | #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5672 | OFPAT10_ACTION(ENUM, STRUCT, NAME) | |
93996add BP |
5673 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5674 | void \ | |
5675 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5676 | { \ | |
5677 | memset(s, 0, sizeof *s); \ | |
08f94c0e | 5678 | s->type = htons(OFPAT10_VENDOR); \ |
93996add BP |
5679 | s->len = htons(sizeof *s); \ |
5680 | s->vendor = htonl(NX_VENDOR_ID); \ | |
5681 | s->subtype = htons(ENUM); \ | |
5682 | } \ | |
5683 | \ | |
5684 | struct STRUCT * \ | |
5685 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5686 | { \ | |
5687 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5688 | ofputil_init_##ENUM(s); \ | |
5689 | return s; \ | |
5690 | } | |
5691 | #include "ofp-util.def" | |
5692 | ||
3cbd9931 | 5693 | static void |
81a76618 | 5694 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
5695 | { |
5696 | enum { | |
5697 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
5698 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
5699 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 5700 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
5701 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
5702 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 5703 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
5704 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
5705 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
5706 | } may_match; |
5707 | ||
5708 | struct flow_wildcards wc; | |
5709 | ||
5710 | /* Figure out what fields may be matched. */ | |
81a76618 | 5711 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 5712 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
5713 | if (match->flow.nw_proto == IPPROTO_TCP || |
5714 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 5715 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 5716 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
5717 | may_match |= MAY_TP_ADDR; |
5718 | } | |
81a76618 | 5719 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 5720 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 5721 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
5722 | match->flow.nw_proto == IPPROTO_UDP || |
5723 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 5724 | may_match |= MAY_TP_ADDR; |
81a76618 | 5725 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 5726 | may_match |= MAY_TP_ADDR; |
81a76618 | 5727 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 5728 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 5729 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
5730 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
5731 | } | |
5732 | } | |
8087f5ff MM |
5733 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
5734 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 5735 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
5736 | } else if (eth_type_mpls(match->flow.dl_type)) { |
5737 | may_match = MAY_MPLS; | |
1c0b7503 | 5738 | } else { |
b459a924 BP |
5739 | may_match = 0; |
5740 | } | |
5741 | ||
5742 | /* Clear the fields that may not be matched. */ | |
81a76618 | 5743 | wc = match->wc; |
b459a924 | 5744 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 5745 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
5746 | } |
5747 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 5748 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
5749 | } |
5750 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 5751 | wc.masks.nw_proto = 0; |
b459a924 | 5752 | } |
9e44d715 | 5753 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
5754 | wc.masks.nw_tos = 0; |
5755 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
5756 | } |
5757 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 5758 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
5759 | } |
5760 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 5761 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 5762 | } |
d78477ec | 5763 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
5764 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
5765 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
5766 | } |
5767 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 5768 | wc.masks.nd_target = in6addr_any; |
b459a924 | 5769 | } |
b02475c5 | 5770 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 5771 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 5772 | } |
b459a924 BP |
5773 | |
5774 | /* Log any changes. */ | |
81a76618 | 5775 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 5776 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 5777 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 5778 | |
81a76618 BP |
5779 | match->wc = wc; |
5780 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
5781 | |
5782 | if (log) { | |
81a76618 | 5783 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
5784 | VLOG_INFO("normalization changed ofp_match, details:"); |
5785 | VLOG_INFO(" pre: %s", pre); | |
5786 | VLOG_INFO("post: %s", post); | |
5787 | free(pre); | |
5788 | free(post); | |
5789 | } | |
fa37b408 | 5790 | } |
3f09c339 | 5791 | } |
26c112c2 | 5792 | |
81a76618 | 5793 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
5794 | * |
5795 | * 1. If the type of level N is known, then only the valid fields for that | |
5796 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 5797 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 5798 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 5799 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5800 | * IPv4 flow. |
5801 | * | |
5802 | * 2. If the type of level N is not known (or not understood by Open | |
5803 | * vSwitch), then no fields at all for that level may be specified. For | |
5804 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 5805 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5806 | * SCTP flow. |
5807 | * | |
81a76618 | 5808 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
5809 | * message. */ |
5810 | void | |
81a76618 | 5811 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 5812 | { |
81a76618 | 5813 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
5814 | } |
5815 | ||
81a76618 BP |
5816 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
5817 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
5818 | * sense for use on flows received from elsewhere (so that a bug in the program |
5819 | * that sent them can be reported and corrected). */ | |
5820 | void | |
81a76618 | 5821 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 5822 | { |
81a76618 | 5823 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
5824 | } |
5825 | ||
0ff22822 BP |
5826 | /* Parses a key or a key-value pair from '*stringp'. |
5827 | * | |
5828 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
5829 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
5830 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
5831 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
5832 | * terminators. Returns true. | |
5833 | * | |
5834 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
5835 | * NULL and returns false. */ | |
5836 | bool | |
5837 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
5838 | { | |
5839 | char *pos, *key, *value; | |
5840 | size_t key_len; | |
5841 | ||
5842 | pos = *stringp; | |
5843 | pos += strspn(pos, ", \t\r\n"); | |
5844 | if (*pos == '\0') { | |
5845 | *keyp = *valuep = NULL; | |
5846 | return false; | |
5847 | } | |
5848 | ||
5849 | key = pos; | |
5850 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
5851 | if (key[key_len] == ':' || key[key_len] == '=') { | |
5852 | /* The value can be separated by a colon. */ | |
5853 | size_t value_len; | |
5854 | ||
5855 | value = key + key_len + 1; | |
5856 | value_len = strcspn(value, ", \t\r\n"); | |
5857 | pos = value + value_len + (value[value_len] != '\0'); | |
5858 | value[value_len] = '\0'; | |
5859 | } else if (key[key_len] == '(') { | |
5860 | /* The value can be surrounded by balanced parentheses. The outermost | |
5861 | * set of parentheses is removed. */ | |
5862 | int level = 1; | |
5863 | size_t value_len; | |
5864 | ||
5865 | value = key + key_len + 1; | |
5866 | for (value_len = 0; level > 0; value_len++) { | |
5867 | switch (value[value_len]) { | |
5868 | case '\0': | |
33cadc50 BP |
5869 | level = 0; |
5870 | break; | |
0ff22822 BP |
5871 | |
5872 | case '(': | |
5873 | level++; | |
5874 | break; | |
5875 | ||
5876 | case ')': | |
5877 | level--; | |
5878 | break; | |
5879 | } | |
5880 | } | |
5881 | value[value_len - 1] = '\0'; | |
5882 | pos = value + value_len; | |
5883 | } else { | |
5884 | /* There might be no value at all. */ | |
5885 | value = key + key_len; /* Will become the empty string below. */ | |
5886 | pos = key + key_len + (key[key_len] != '\0'); | |
5887 | } | |
5888 | key[key_len] = '\0'; | |
5889 | ||
5890 | *stringp = pos; | |
5891 | *keyp = key; | |
5892 | *valuep = value; | |
5893 | return true; | |
5894 | } | |
f8e4867e SH |
5895 | |
5896 | /* Encode a dump ports request for 'port', the encoded message | |
2e1ae200 | 5897 | * will be for Open Flow version 'ofp_version'. Returns message |
f8e4867e SH |
5898 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
5899 | struct ofpbuf * | |
4e022ec0 | 5900 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
5901 | { |
5902 | struct ofpbuf *request; | |
5903 | ||
5904 | switch (ofp_version) { | |
5905 | case OFP10_VERSION: { | |
5906 | struct ofp10_port_stats_request *req; | |
5907 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
5908 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 5909 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
5910 | break; |
5911 | } | |
5912 | case OFP11_VERSION: | |
2e1ae200 | 5913 | case OFP12_VERSION: |
c37c0382 AC |
5914 | case OFP13_VERSION: |
5915 | case OFP14_VERSION:{ | |
f8e4867e SH |
5916 | struct ofp11_port_stats_request *req; |
5917 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
5918 | req = ofpbuf_put_zeros(request, sizeof *req); | |
5919 | req->port_no = ofputil_port_to_ofp11(port); | |
5920 | break; | |
5921 | } | |
5922 | default: | |
428b2edd | 5923 | OVS_NOT_REACHED(); |
f8e4867e SH |
5924 | } |
5925 | ||
5926 | return request; | |
5927 | } | |
5928 | ||
5929 | static void | |
5930 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
5931 | struct ofp10_port_stats *ps10) | |
5932 | { | |
4e022ec0 | 5933 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
5934 | memset(ps10->pad, 0, sizeof ps10->pad); |
5935 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
5936 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
5937 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
5938 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
5939 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
5940 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
5941 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
5942 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
5943 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
5944 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
5945 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
5946 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
5947 | } | |
5948 | ||
5949 | static void | |
5950 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
5951 | struct ofp11_port_stats *ps11) | |
5952 | { | |
5953 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
5954 | memset(ps11->pad, 0, sizeof ps11->pad); | |
5955 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
5956 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
5957 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
5958 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
5959 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
5960 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
5961 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
5962 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
5963 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
5964 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
5965 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
5966 | ps11->collisions = htonll(ops->stats.collisions); | |
5967 | } | |
5968 | ||
2e1ae200 JR |
5969 | static void |
5970 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
5971 | struct ofp13_port_stats *ps13) | |
5972 | { | |
5973 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
5974 | ps13->duration_sec = htonl(ops->duration_sec); |
5975 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
5976 | } |
5977 | ||
5978 | ||
ad4c35fe | 5979 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e SH |
5980 | void |
5981 | ofputil_append_port_stat(struct list *replies, | |
5982 | const struct ofputil_port_stats *ops) | |
5983 | { | |
5984 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
5985 | struct ofp_header *oh = msg->data; | |
5986 | ||
5987 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
5988 | case OFP13_VERSION: { |
5989 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5990 | ofputil_port_stats_to_ofp13(ops, reply); | |
5991 | break; | |
5992 | } | |
f8e4867e SH |
5993 | case OFP12_VERSION: |
5994 | case OFP11_VERSION: { | |
5995 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5996 | ofputil_port_stats_to_ofp11(ops, reply); | |
5997 | break; | |
5998 | } | |
5999 | ||
6000 | case OFP10_VERSION: { | |
6001 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6002 | ofputil_port_stats_to_ofp10(ops, reply); | |
6003 | break; | |
6004 | } | |
6005 | ||
c37c0382 AC |
6006 | case OFP14_VERSION: |
6007 | OVS_NOT_REACHED(); | |
6008 | break; | |
6009 | ||
f8e4867e | 6010 | default: |
428b2edd | 6011 | OVS_NOT_REACHED(); |
f8e4867e SH |
6012 | } |
6013 | } | |
6014 | ||
6015 | static enum ofperr | |
6016 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
6017 | const struct ofp10_port_stats *ps10) | |
6018 | { | |
6019 | memset(ops, 0, sizeof *ops); | |
6020 | ||
4e022ec0 | 6021 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
6022 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
6023 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
6024 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
6025 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
6026 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
6027 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
6028 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
6029 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
6030 | ops->stats.rx_frame_errors = | |
6031 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
6032 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
6033 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
6034 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 6035 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6036 | |
6037 | return 0; | |
6038 | } | |
6039 | ||
6040 | static enum ofperr | |
6041 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
6042 | const struct ofp11_port_stats *ps11) | |
6043 | { | |
6044 | enum ofperr error; | |
6045 | ||
6046 | memset(ops, 0, sizeof *ops); | |
6047 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
6048 | if (error) { | |
6049 | return error; | |
6050 | } | |
6051 | ||
6052 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
6053 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
6054 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
6055 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
6056 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
6057 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
6058 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
6059 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
6060 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
6061 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
6062 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
6063 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 6064 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6065 | |
6066 | return 0; | |
6067 | } | |
6068 | ||
2e1ae200 JR |
6069 | static enum ofperr |
6070 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
6071 | const struct ofp13_port_stats *ps13) | |
6072 | { | |
65e0be10 | 6073 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 6074 | if (!error) { |
65e0be10 BP |
6075 | ops->duration_sec = ntohl(ps13->duration_sec); |
6076 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 6077 | } |
2e1ae200 JR |
6078 | return error; |
6079 | } | |
6080 | ||
be0c30df BP |
6081 | static size_t |
6082 | ofputil_get_port_stats_size(enum ofp_version ofp_version) | |
6083 | { | |
6084 | switch (ofp_version) { | |
6085 | case OFP10_VERSION: | |
6086 | return sizeof(struct ofp10_port_stats); | |
6087 | case OFP11_VERSION: | |
6088 | case OFP12_VERSION: | |
6089 | return sizeof(struct ofp11_port_stats); | |
6090 | case OFP13_VERSION: | |
6091 | return sizeof(struct ofp13_port_stats); | |
c37c0382 AC |
6092 | case OFP14_VERSION: |
6093 | OVS_NOT_REACHED(); | |
6094 | return 0; | |
be0c30df | 6095 | default: |
428b2edd | 6096 | OVS_NOT_REACHED(); |
be0c30df BP |
6097 | } |
6098 | } | |
2e1ae200 | 6099 | |
f8e4867e SH |
6100 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
6101 | * message 'oh'. */ | |
6102 | size_t | |
6103 | ofputil_count_port_stats(const struct ofp_header *oh) | |
6104 | { | |
6105 | struct ofpbuf b; | |
6106 | ||
6107 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6108 | ofpraw_pull_assert(&b); | |
6109 | ||
be0c30df | 6110 | return b.size / ofputil_get_port_stats_size(oh->version); |
f8e4867e SH |
6111 | } |
6112 | ||
6113 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
6114 | * ofputil_port_stats in 'ps'. | |
6115 | * | |
6116 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
6117 | * message. Calling this function multiple times for a single 'msg' iterates | |
6118 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6119 | * null and not modify them between calls. | |
6120 | * | |
6121 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6122 | * otherwise a positive errno value. */ | |
6123 | int | |
6124 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
6125 | { | |
6126 | enum ofperr error; | |
6127 | enum ofpraw raw; | |
6128 | ||
6129 | error = (msg->l2 | |
6130 | ? ofpraw_decode(&raw, msg->l2) | |
6131 | : ofpraw_pull(&raw, msg)); | |
6132 | if (error) { | |
6133 | return error; | |
6134 | } | |
6135 | ||
6136 | if (!msg->size) { | |
6137 | return EOF; | |
2e1ae200 JR |
6138 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
6139 | const struct ofp13_port_stats *ps13; | |
6140 | ||
6141 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
6142 | if (!ps13) { | |
6143 | goto bad_len; | |
6144 | } | |
6145 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
6146 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
6147 | const struct ofp11_port_stats *ps11; | |
6148 | ||
6149 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
6150 | if (!ps11) { | |
2e1ae200 | 6151 | goto bad_len; |
f8e4867e SH |
6152 | } |
6153 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
6154 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
6155 | const struct ofp10_port_stats *ps10; | |
6156 | ||
6157 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
6158 | if (!ps10) { | |
2e1ae200 | 6159 | goto bad_len; |
f8e4867e SH |
6160 | } |
6161 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
6162 | } else { | |
428b2edd | 6163 | OVS_NOT_REACHED(); |
f8e4867e SH |
6164 | } |
6165 | ||
2e1ae200 | 6166 | bad_len: |
437d0d22 | 6167 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
2e1ae200 JR |
6168 | "bytes at end", msg->size); |
6169 | return OFPERR_OFPBRC_BAD_LEN; | |
f8e4867e SH |
6170 | } |
6171 | ||
6172 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
6173 | * port number and stores the latter in '*ofp10_port'. | |
6174 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6175 | enum ofperr | |
6176 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 6177 | ofp_port_t *ofp10_port) |
f8e4867e SH |
6178 | { |
6179 | switch ((enum ofp_version)request->version) { | |
2e1ae200 | 6180 | case OFP13_VERSION: |
f8e4867e SH |
6181 | case OFP12_VERSION: |
6182 | case OFP11_VERSION: { | |
6183 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
6184 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
6185 | } | |
6186 | ||
6187 | case OFP10_VERSION: { | |
6188 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 6189 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
6190 | return 0; |
6191 | } | |
6192 | ||
c37c0382 AC |
6193 | case OFP14_VERSION: |
6194 | OVS_NOT_REACHED(); | |
6195 | break; | |
6196 | ||
f8e4867e | 6197 | default: |
428b2edd | 6198 | OVS_NOT_REACHED(); |
f8e4867e SH |
6199 | } |
6200 | } | |
64626975 | 6201 | |
7395c052 NZ |
6202 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
6203 | void | |
6204 | ofputil_bucket_list_destroy(struct list *buckets) | |
6205 | { | |
6206 | struct ofputil_bucket *bucket, *next_bucket; | |
6207 | ||
6208 | LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) { | |
6209 | list_remove(&bucket->list_node); | |
6210 | free(bucket->ofpacts); | |
6211 | free(bucket); | |
6212 | } | |
6213 | } | |
6214 | ||
6215 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', | |
6216 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
6217 | * for all groups.) | |
6218 | * | |
6219 | * Group statistics include packet and byte counts for each group. */ | |
6220 | struct ofpbuf * | |
6221 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
6222 | uint32_t group_id) | |
6223 | { | |
6224 | struct ofpbuf *request; | |
6225 | ||
6226 | switch (ofp_version) { | |
6227 | case OFP10_VERSION: | |
6228 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
6229 | "(\'-O OpenFlow11\')"); | |
6230 | case OFP11_VERSION: | |
6231 | case OFP12_VERSION: | |
c37c0382 AC |
6232 | case OFP13_VERSION: |
6233 | case OFP14_VERSION: { | |
7395c052 NZ |
6234 | struct ofp11_group_stats_request *req; |
6235 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
6236 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6237 | req->group_id = htonl(group_id); | |
6238 | break; | |
6239 | } | |
6240 | default: | |
428b2edd | 6241 | OVS_NOT_REACHED(); |
7395c052 NZ |
6242 | } |
6243 | ||
6244 | return request; | |
6245 | } | |
6246 | ||
6247 | /* Returns an OpenFlow group description request for OpenFlow version | |
6248 | * 'ofp_version', that requests stats for group 'group_id'. (Use OFPG_ALL to | |
6249 | * request stats for all groups.) | |
6250 | * | |
6251 | * Group descriptions include the bucket and action configuration for each | |
6252 | * group. */ | |
6253 | struct ofpbuf * | |
6254 | ofputil_encode_group_desc_request(enum ofp_version ofp_version) | |
6255 | { | |
6256 | struct ofpbuf *request; | |
6257 | ||
6258 | switch (ofp_version) { | |
6259 | case OFP10_VERSION: | |
6260 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
6261 | "(\'-O OpenFlow11\')"); | |
6262 | case OFP11_VERSION: | |
6263 | case OFP12_VERSION: | |
c37c0382 AC |
6264 | case OFP13_VERSION: |
6265 | case OFP14_VERSION: | |
7395c052 NZ |
6266 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, ofp_version, 0); |
6267 | break; | |
7395c052 | 6268 | default: |
428b2edd | 6269 | OVS_NOT_REACHED(); |
7395c052 NZ |
6270 | } |
6271 | ||
6272 | return request; | |
6273 | } | |
6274 | ||
6275 | static void * | |
6276 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *ogs, | |
6277 | size_t base_len, struct list *replies) | |
6278 | { | |
6279 | struct ofp11_bucket_counter *bc11; | |
6280 | struct ofp11_group_stats *gs11; | |
6281 | size_t length; | |
6282 | int i; | |
6283 | ||
6284 | length = base_len + sizeof(struct ofp11_bucket_counter) * ogs->n_buckets; | |
6285 | ||
6286 | gs11 = ofpmp_append(replies, length); | |
6287 | memset(gs11, 0, base_len); | |
6288 | gs11->length = htons(length); | |
6289 | gs11->group_id = htonl(ogs->group_id); | |
6290 | gs11->ref_count = htonl(ogs->ref_count); | |
6291 | gs11->packet_count = htonll(ogs->packet_count); | |
6292 | gs11->byte_count = htonll(ogs->byte_count); | |
6293 | ||
6294 | bc11 = (void *) (((uint8_t *) gs11) + base_len); | |
6295 | for (i = 0; i < ogs->n_buckets; i++) { | |
6296 | const struct bucket_counter *obc = &ogs->bucket_stats[i]; | |
6297 | ||
6298 | bc11[i].packet_count = htonll(obc->packet_count); | |
6299 | bc11[i].byte_count = htonll(obc->byte_count); | |
6300 | } | |
6301 | ||
6302 | return gs11; | |
6303 | } | |
6304 | ||
6305 | static void | |
6306 | ofputil_append_of13_group_stats(const struct ofputil_group_stats *ogs, | |
6307 | struct list *replies) | |
6308 | { | |
6309 | struct ofp13_group_stats *gs13; | |
6310 | ||
6311 | gs13 = ofputil_group_stats_to_ofp11(ogs, sizeof *gs13, replies); | |
6312 | gs13->duration_sec = htonl(ogs->duration_sec); | |
6313 | gs13->duration_nsec = htonl(ogs->duration_nsec); | |
6314 | } | |
6315 | ||
6316 | /* Encodes 'ogs' properly for the format of the list of group statistics | |
6317 | * replies already begun in 'replies' and appends it to the list. 'replies' | |
6318 | * must have originally been initialized with ofpmp_init(). */ | |
6319 | void | |
6320 | ofputil_append_group_stats(struct list *replies, | |
6321 | const struct ofputil_group_stats *ogs) | |
6322 | { | |
6323 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6324 | struct ofp_header *oh = msg->data; | |
6325 | ||
6326 | switch ((enum ofp_version)oh->version) { | |
6327 | case OFP11_VERSION: | |
6328 | case OFP12_VERSION: | |
6329 | ofputil_group_stats_to_ofp11(ogs, sizeof(struct ofp11_group_stats), | |
6330 | replies); | |
6331 | break; | |
6332 | ||
6333 | case OFP13_VERSION: | |
6334 | ofputil_append_of13_group_stats(ogs, replies); | |
6335 | break; | |
6336 | ||
c37c0382 AC |
6337 | case OFP14_VERSION: |
6338 | OVS_NOT_REACHED(); | |
6339 | break; | |
6340 | ||
7395c052 NZ |
6341 | case OFP10_VERSION: |
6342 | default: | |
428b2edd | 6343 | OVS_NOT_REACHED(); |
7395c052 NZ |
6344 | } |
6345 | } | |
6346 | ||
6347 | /* Returns an OpenFlow group features request for OpenFlow version | |
6348 | * 'ofp_version'. */ | |
6349 | struct ofpbuf * | |
6350 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
6351 | { | |
6352 | struct ofpbuf *request = NULL; | |
6353 | ||
6354 | switch (ofp_version) { | |
6355 | case OFP10_VERSION: | |
6356 | case OFP11_VERSION: | |
6357 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
6358 | "(\'-O OpenFlow12\')"); | |
6359 | case OFP12_VERSION: | |
c37c0382 AC |
6360 | case OFP13_VERSION: |
6361 | case OFP14_VERSION: | |
7395c052 | 6362 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 6363 | ofp_version, 0); |
7395c052 | 6364 | break; |
7395c052 | 6365 | default: |
428b2edd | 6366 | OVS_NOT_REACHED(); |
7395c052 NZ |
6367 | } |
6368 | ||
6369 | return request; | |
6370 | } | |
6371 | ||
6372 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
6373 | * group features request 'request'. */ | |
6374 | struct ofpbuf * | |
6375 | ofputil_encode_group_features_reply( | |
6376 | const struct ofputil_group_features *features, | |
6377 | const struct ofp_header *request) | |
6378 | { | |
6379 | struct ofp12_group_features_stats *ogf; | |
6380 | struct ofpbuf *reply; | |
6381 | ||
6382 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
6383 | request->version, request->xid, 0); | |
6384 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
6385 | ogf->types = htonl(features->types); | |
6386 | ogf->capabilities = htonl(features->capabilities); | |
6387 | ogf->max_groups[0] = htonl(features->max_groups[0]); | |
6388 | ogf->max_groups[1] = htonl(features->max_groups[1]); | |
6389 | ogf->max_groups[2] = htonl(features->max_groups[2]); | |
6390 | ogf->max_groups[3] = htonl(features->max_groups[3]); | |
6391 | ogf->actions[0] = htonl(features->actions[0]); | |
6392 | ogf->actions[1] = htonl(features->actions[1]); | |
6393 | ogf->actions[2] = htonl(features->actions[2]); | |
6394 | ogf->actions[3] = htonl(features->actions[3]); | |
6395 | ||
6396 | return reply; | |
6397 | } | |
6398 | ||
6399 | /* Decodes group features reply 'oh' into 'features'. */ | |
6400 | void | |
6401 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
6402 | struct ofputil_group_features *features) | |
6403 | { | |
6404 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
6405 | ||
6406 | features->types = ntohl(ogf->types); | |
6407 | features->capabilities = ntohl(ogf->capabilities); | |
6408 | features->max_groups[0] = ntohl(ogf->max_groups[0]); | |
6409 | features->max_groups[1] = ntohl(ogf->max_groups[1]); | |
6410 | features->max_groups[2] = ntohl(ogf->max_groups[2]); | |
6411 | features->max_groups[3] = ntohl(ogf->max_groups[3]); | |
6412 | features->actions[0] = ntohl(ogf->actions[0]); | |
6413 | features->actions[1] = ntohl(ogf->actions[1]); | |
6414 | features->actions[2] = ntohl(ogf->actions[2]); | |
6415 | features->actions[3] = ntohl(ogf->actions[3]); | |
6416 | } | |
6417 | ||
6418 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
6419 | * group ID and stores the latter in '*group_id'. | |
6420 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6421 | enum ofperr | |
6422 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
6423 | uint32_t *group_id) | |
6424 | { | |
6425 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
6426 | *group_id = ntohl(gsr11->group_id); | |
6427 | return 0; | |
6428 | } | |
6429 | ||
6430 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
6431 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
6432 | * caller to eventually free. | |
7395c052 NZ |
6433 | * |
6434 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
6435 | * Calling this function multiple times for a single 'msg' iterates through the | |
6436 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
6437 | * not modify them between calls. | |
6438 | * | |
6439 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6440 | * otherwise a positive errno value. */ | |
6441 | int | |
6442 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
6443 | struct ofputil_group_stats *gs) | |
6444 | { | |
6445 | struct ofp11_bucket_counter *obc; | |
6446 | struct ofp11_group_stats *ogs11; | |
6447 | enum ofpraw raw; | |
6448 | enum ofperr error; | |
6449 | size_t base_len; | |
6450 | size_t length; | |
6451 | size_t i; | |
6452 | ||
646b2a9c | 6453 | gs->bucket_stats = NULL; |
7395c052 NZ |
6454 | error = (msg->l2 |
6455 | ? ofpraw_decode(&raw, msg->l2) | |
6456 | : ofpraw_pull(&raw, msg)); | |
6457 | if (error) { | |
6458 | return error; | |
6459 | } | |
6460 | ||
6461 | if (!msg->size) { | |
6462 | return EOF; | |
6463 | } | |
6464 | ||
6465 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
6466 | base_len = sizeof *ogs11; | |
6467 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
6468 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
6469 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
6470 | struct ofp13_group_stats *ogs13; | |
6471 | ||
6472 | base_len = sizeof *ogs13; | |
6473 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
6474 | if (ogs13) { | |
6475 | ogs11 = &ogs13->gs; | |
6476 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
6477 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
6478 | } else { | |
6479 | ogs11 = NULL; | |
6480 | } | |
6481 | } else { | |
428b2edd | 6482 | OVS_NOT_REACHED(); |
7395c052 NZ |
6483 | } |
6484 | ||
6485 | if (!ogs11) { | |
437d0d22 | 6486 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
7395c052 NZ |
6487 | ofpraw_get_name(raw), msg->size); |
6488 | return OFPERR_OFPBRC_BAD_LEN; | |
6489 | } | |
6490 | length = ntohs(ogs11->length); | |
6491 | if (length < sizeof base_len) { | |
34582733 | 6492 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
6493 | ofpraw_get_name(raw), length); |
6494 | return OFPERR_OFPBRC_BAD_LEN; | |
6495 | } | |
6496 | ||
6497 | gs->group_id = ntohl(ogs11->group_id); | |
6498 | gs->ref_count = ntohl(ogs11->ref_count); | |
6499 | gs->packet_count = ntohll(ogs11->packet_count); | |
6500 | gs->byte_count = ntohll(ogs11->byte_count); | |
6501 | ||
6502 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
6503 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
6504 | if (!obc) { | |
437d0d22 | 6505 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
7395c052 NZ |
6506 | ofpraw_get_name(raw), msg->size); |
6507 | return OFPERR_OFPBRC_BAD_LEN; | |
6508 | } | |
6509 | ||
646b2a9c | 6510 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
6511 | for (i = 0; i < gs->n_buckets; i++) { |
6512 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
6513 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
6514 | } | |
6515 | ||
6516 | return 0; | |
6517 | } | |
6518 | ||
6519 | /* Appends a group stats reply that contains the data in 'gds' to those already | |
6520 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
6521 | * initialized with ofpmp_init(). */ | |
6522 | void | |
6523 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
6524 | struct list *buckets, | |
6525 | struct list *replies) | |
6526 | { | |
6527 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
6528 | struct ofp11_group_desc_stats *ogds; | |
6529 | struct ofputil_bucket *bucket; | |
6530 | size_t start_ogds; | |
e3f8f887 | 6531 | enum ofp_version version = ((struct ofp_header *)reply->data)->version; |
7395c052 NZ |
6532 | |
6533 | start_ogds = reply->size; | |
6534 | ofpbuf_put_zeros(reply, sizeof *ogds); | |
6535 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
6536 | struct ofp11_bucket *ob; | |
6537 | size_t start_ob; | |
6538 | ||
6539 | start_ob = reply->size; | |
6540 | ofpbuf_put_zeros(reply, sizeof *ob); | |
e3f8f887 JR |
6541 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
6542 | reply, version); | |
7395c052 NZ |
6543 | ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob); |
6544 | ob->len = htons(reply->size - start_ob); | |
6545 | ob->weight = htons(bucket->weight); | |
6546 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
6547 | ob->watch_group = htonl(bucket->watch_group); | |
6548 | } | |
6549 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6550 | ogds->length = htons(reply->size - start_ogds); | |
6551 | ogds->type = gds->type; | |
6552 | ogds->group_id = htonl(gds->group_id); | |
6553 | ||
6554 | ofpmp_postappend(replies, start_ogds); | |
6555 | } | |
6556 | ||
6557 | static enum ofperr | |
e3f8f887 JR |
6558 | ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length, |
6559 | enum ofp_version version, struct list *buckets) | |
7395c052 NZ |
6560 | { |
6561 | struct ofp11_bucket *ob; | |
6562 | ||
6563 | list_init(buckets); | |
6564 | while (buckets_length > 0) { | |
6565 | struct ofputil_bucket *bucket; | |
6566 | struct ofpbuf ofpacts; | |
6567 | enum ofperr error; | |
6568 | size_t ob_len; | |
6569 | ||
6570 | ob = (buckets_length >= sizeof *ob | |
6571 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
6572 | : NULL); | |
6573 | if (!ob) { | |
34582733 | 6574 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 NZ |
6575 | buckets_length); |
6576 | } | |
6577 | ||
6578 | ob_len = ntohs(ob->len); | |
6579 | if (ob_len < sizeof *ob) { | |
6580 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 6581 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
6582 | return OFPERR_OFPGMFC_BAD_BUCKET; |
6583 | } else if (ob_len > buckets_length) { | |
6584 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 6585 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
6586 | ob_len, buckets_length); |
6587 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
6588 | } | |
6589 | buckets_length -= ob_len; | |
6590 | ||
6591 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
6592 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
6593 | version, &ofpacts); | |
7395c052 NZ |
6594 | if (error) { |
6595 | ofpbuf_uninit(&ofpacts); | |
6596 | ofputil_bucket_list_destroy(buckets); | |
6597 | return error; | |
6598 | } | |
6599 | ||
6600 | bucket = xzalloc(sizeof *bucket); | |
6601 | bucket->weight = ntohs(ob->weight); | |
6602 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
6603 | if (error) { | |
6604 | ofpbuf_uninit(&ofpacts); | |
6605 | ofputil_bucket_list_destroy(buckets); | |
6606 | return OFPERR_OFPGMFC_BAD_WATCH; | |
6607 | } | |
6608 | bucket->watch_group = ntohl(ob->watch_group); | |
6609 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6610 | bucket->ofpacts_len = ofpacts.size; | |
6611 | list_push_back(buckets, &bucket->list_node); | |
6612 | } | |
6613 | ||
6614 | return 0; | |
6615 | } | |
6616 | ||
6617 | /* Converts a group description reply in 'msg' into an abstract | |
6618 | * ofputil_group_desc in 'gd'. | |
6619 | * | |
6620 | * Multiple group description replies can be packed into a single OpenFlow | |
6621 | * message. Calling this function multiple times for a single 'msg' iterates | |
6622 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6623 | * null and not modify them between calls. | |
6624 | * | |
6625 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6626 | * otherwise a positive errno value. */ | |
6627 | int | |
6628 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
a7a2d006 | 6629 | struct ofpbuf *msg, enum ofp_version version) |
7395c052 NZ |
6630 | { |
6631 | struct ofp11_group_desc_stats *ogds; | |
6632 | size_t length; | |
6633 | ||
6634 | if (!msg->l2) { | |
6635 | ofpraw_pull_assert(msg); | |
6636 | } | |
6637 | ||
6638 | if (!msg->size) { | |
6639 | return EOF; | |
6640 | } | |
6641 | ||
6642 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
6643 | if (!ogds) { | |
437d0d22 | 6644 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
7395c052 NZ |
6645 | "leftover bytes at end", msg->size); |
6646 | return OFPERR_OFPBRC_BAD_LEN; | |
6647 | } | |
6648 | gd->type = ogds->type; | |
6649 | gd->group_id = ntohl(ogds->group_id); | |
6650 | ||
6651 | length = ntohs(ogds->length); | |
6652 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { | |
6653 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
34582733 | 6654 | "length %"PRIuSIZE, length); |
7395c052 NZ |
6655 | return OFPERR_OFPBRC_BAD_LEN; |
6656 | } | |
6657 | ||
e3f8f887 | 6658 | return ofputil_pull_buckets(msg, length - sizeof *ogds, version, |
a7a2d006 | 6659 | &gd->buckets); |
7395c052 NZ |
6660 | } |
6661 | ||
6662 | /* Converts abstract group mod 'gm' into a message for OpenFlow version | |
6663 | * 'ofp_version' and returns the message. */ | |
6664 | struct ofpbuf * | |
6665 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
6666 | const struct ofputil_group_mod *gm) | |
6667 | { | |
6668 | struct ofpbuf *b; | |
6669 | struct ofp11_group_mod *ogm; | |
6670 | size_t start_ogm; | |
6671 | size_t start_bucket; | |
6672 | struct ofputil_bucket *bucket; | |
6673 | struct ofp11_bucket *ob; | |
6674 | ||
6675 | switch (ofp_version) { | |
6676 | case OFP10_VERSION: { | |
6677 | if (gm->command == OFPGC11_ADD) { | |
6678 | ovs_fatal(0, "add-group needs OpenFlow 1.1 or later " | |
6679 | "(\'-O OpenFlow11\')"); | |
6680 | } else if (gm->command == OFPGC11_MODIFY) { | |
6681 | ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later " | |
6682 | "(\'-O OpenFlow11\')"); | |
6683 | } else { | |
6684 | ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later " | |
6685 | "(\'-O OpenFlow11\')"); | |
6686 | } | |
6687 | } | |
6688 | ||
6689 | case OFP11_VERSION: | |
6690 | case OFP12_VERSION: | |
c37c0382 AC |
6691 | case OFP13_VERSION: |
6692 | case OFP14_VERSION: | |
7395c052 NZ |
6693 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6694 | start_ogm = b->size; | |
2134b5ec | 6695 | ofpbuf_put_zeros(b, sizeof *ogm); |
7395c052 NZ |
6696 | |
6697 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
6698 | start_bucket = b->size; | |
2134b5ec | 6699 | ofpbuf_put_zeros(b, sizeof *ob); |
7395c052 | 6700 | if (bucket->ofpacts && bucket->ofpacts_len) { |
e3f8f887 JR |
6701 | ofpacts_put_openflow_actions(bucket->ofpacts, |
6702 | bucket->ofpacts_len, b, | |
6703 | ofp_version); | |
7395c052 NZ |
6704 | } |
6705 | ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob); | |
6706 | ob->len = htons(b->size - start_bucket);; | |
6707 | ob->weight = htons(bucket->weight); | |
6708 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
6709 | ob->watch_group = htonl(bucket->watch_group); | |
6710 | } | |
6711 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
6712 | ogm->command = htons(gm->command); | |
6713 | ogm->type = gm->type; | |
7395c052 NZ |
6714 | ogm->group_id = htonl(gm->group_id); |
6715 | ||
6716 | break; | |
7395c052 NZ |
6717 | |
6718 | default: | |
428b2edd | 6719 | OVS_NOT_REACHED(); |
7395c052 NZ |
6720 | } |
6721 | ||
6722 | return b; | |
6723 | } | |
6724 | ||
6725 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in | |
6726 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
6727 | enum ofperr | |
6728 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
6729 | struct ofputil_group_mod *gm) | |
6730 | { | |
6731 | const struct ofp11_group_mod *ogm; | |
6732 | struct ofpbuf msg; | |
e57681e5 SH |
6733 | struct ofputil_bucket *bucket; |
6734 | enum ofperr err; | |
7395c052 NZ |
6735 | |
6736 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
6737 | ofpraw_pull_assert(&msg); | |
6738 | ||
6739 | ogm = ofpbuf_pull(&msg, sizeof *ogm); | |
6740 | gm->command = ntohs(ogm->command); | |
6741 | gm->type = ogm->type; | |
6742 | gm->group_id = ntohl(ogm->group_id); | |
6743 | ||
e57681e5 SH |
6744 | err = ofputil_pull_buckets(&msg, msg.size, oh->version, &gm->buckets); |
6745 | if (err) { | |
6746 | return err; | |
6747 | } | |
6748 | ||
6749 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
6750 | switch (gm->type) { | |
6751 | case OFPGT11_ALL: | |
6752 | case OFPGT11_INDIRECT: | |
6753 | if (ofputil_bucket_has_liveness(bucket)) { | |
6754 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
6755 | } | |
6756 | break; | |
6757 | case OFPGT11_SELECT: | |
6758 | break; | |
6759 | case OFPGT11_FF: | |
6760 | if (!ofputil_bucket_has_liveness(bucket)) { | |
6761 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6762 | } | |
6763 | break; | |
6764 | default: | |
428b2edd | 6765 | OVS_NOT_REACHED(); |
e57681e5 SH |
6766 | } |
6767 | } | |
6768 | ||
6769 | return 0; | |
7395c052 NZ |
6770 | } |
6771 | ||
64626975 SH |
6772 | /* Parse a queue status request message into 'oqsr'. |
6773 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6774 | enum ofperr | |
6775 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
6776 | struct ofputil_queue_stats_request *oqsr) | |
6777 | { | |
6778 | switch ((enum ofp_version)request->version) { | |
c37c0382 | 6779 | case OFP14_VERSION: |
2e1ae200 | 6780 | case OFP13_VERSION: |
64626975 SH |
6781 | case OFP12_VERSION: |
6782 | case OFP11_VERSION: { | |
6783 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
6784 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
6785 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
6786 | } | |
6787 | ||
6788 | case OFP10_VERSION: { | |
7f05e7ab JR |
6789 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
6790 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 6791 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
6792 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
6793 | if (oqsr->port_no == OFPP_ALL) { | |
6794 | oqsr->port_no = OFPP_ANY; | |
6795 | } | |
64626975 SH |
6796 | return 0; |
6797 | } | |
6798 | ||
6799 | default: | |
428b2edd | 6800 | OVS_NOT_REACHED(); |
64626975 SH |
6801 | } |
6802 | } | |
6803 | ||
6804 | /* Encode a queue statsrequest for 'oqsr', the encoded message | |
6805 | * will be fore Open Flow version 'ofp_version'. Returns message | |
6806 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ | |
6807 | struct ofpbuf * | |
6808 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
6809 | const struct ofputil_queue_stats_request *oqsr) | |
6810 | { | |
6811 | struct ofpbuf *request; | |
6812 | ||
6813 | switch (ofp_version) { | |
6814 | case OFP11_VERSION: | |
2e1ae200 | 6815 | case OFP12_VERSION: |
c37c0382 AC |
6816 | case OFP13_VERSION: |
6817 | case OFP14_VERSION: { | |
64626975 SH |
6818 | struct ofp11_queue_stats_request *req; |
6819 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
6820 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6821 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
6822 | req->queue_id = htonl(oqsr->queue_id); | |
6823 | break; | |
6824 | } | |
6825 | case OFP10_VERSION: { | |
6826 | struct ofp10_queue_stats_request *req; | |
6827 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
6828 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 6829 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
6830 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
6831 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
6832 | req->queue_id = htonl(oqsr->queue_id); |
6833 | break; | |
6834 | } | |
6835 | default: | |
428b2edd | 6836 | OVS_NOT_REACHED(); |
64626975 SH |
6837 | } |
6838 | ||
6839 | return request; | |
6840 | } | |
6841 | ||
be0c30df BP |
6842 | static size_t |
6843 | ofputil_get_queue_stats_size(enum ofp_version ofp_version) | |
6844 | { | |
6845 | switch (ofp_version) { | |
6846 | case OFP10_VERSION: | |
6847 | return sizeof(struct ofp10_queue_stats); | |
6848 | case OFP11_VERSION: | |
6849 | case OFP12_VERSION: | |
6850 | return sizeof(struct ofp11_queue_stats); | |
6851 | case OFP13_VERSION: | |
6852 | return sizeof(struct ofp13_queue_stats); | |
c37c0382 AC |
6853 | case OFP14_VERSION: |
6854 | OVS_NOT_REACHED(); | |
6855 | return 0; | |
be0c30df | 6856 | default: |
428b2edd | 6857 | OVS_NOT_REACHED(); |
be0c30df BP |
6858 | } |
6859 | } | |
6860 | ||
64626975 SH |
6861 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY |
6862 | * message 'oh'. */ | |
6863 | size_t | |
6864 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
6865 | { | |
6866 | struct ofpbuf b; | |
6867 | ||
6868 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6869 | ofpraw_pull_assert(&b); | |
6870 | ||
be0c30df | 6871 | return b.size / ofputil_get_queue_stats_size(oh->version); |
64626975 SH |
6872 | } |
6873 | ||
6874 | static enum ofperr | |
6875 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
6876 | const struct ofp10_queue_stats *qs10) | |
6877 | { | |
4e022ec0 | 6878 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 6879 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
6880 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
6881 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
6882 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
6883 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6884 | |
6885 | return 0; | |
6886 | } | |
6887 | ||
6888 | static enum ofperr | |
6889 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
6890 | const struct ofp11_queue_stats *qs11) | |
6891 | { | |
6892 | enum ofperr error; | |
6893 | ||
6894 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
6895 | if (error) { | |
6896 | return error; | |
6897 | } | |
6898 | ||
6899 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
6900 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
6901 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
6902 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
6903 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6904 | |
6905 | return 0; | |
6906 | } | |
6907 | ||
2e1ae200 JR |
6908 | static enum ofperr |
6909 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
6910 | const struct ofp13_queue_stats *qs13) | |
6911 | { | |
6dc34a0d | 6912 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 6913 | if (!error) { |
6dc34a0d BP |
6914 | oqs->duration_sec = ntohl(qs13->duration_sec); |
6915 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
6916 | } |
6917 | ||
6918 | return error; | |
6919 | } | |
6920 | ||
64626975 SH |
6921 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
6922 | * ofputil_queue_stats in 'qs'. | |
6923 | * | |
6924 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
6925 | * message. Calling this function multiple times for a single 'msg' iterates | |
6926 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6927 | * null and not modify them between calls. | |
6928 | * | |
6929 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6930 | * otherwise a positive errno value. */ | |
6931 | int | |
6932 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
6933 | { | |
6934 | enum ofperr error; | |
6935 | enum ofpraw raw; | |
6936 | ||
6937 | error = (msg->l2 | |
6938 | ? ofpraw_decode(&raw, msg->l2) | |
6939 | : ofpraw_pull(&raw, msg)); | |
6940 | if (error) { | |
6941 | return error; | |
6942 | } | |
6943 | ||
6944 | if (!msg->size) { | |
6945 | return EOF; | |
2e1ae200 JR |
6946 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
6947 | const struct ofp13_queue_stats *qs13; | |
6948 | ||
6949 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
6950 | if (!qs13) { | |
6951 | goto bad_len; | |
6952 | } | |
6953 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
6954 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
6955 | const struct ofp11_queue_stats *qs11; | |
6956 | ||
6957 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
6958 | if (!qs11) { | |
2e1ae200 | 6959 | goto bad_len; |
64626975 SH |
6960 | } |
6961 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
6962 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
6963 | const struct ofp10_queue_stats *qs10; | |
6964 | ||
6965 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
6966 | if (!qs10) { | |
2e1ae200 | 6967 | goto bad_len; |
64626975 SH |
6968 | } |
6969 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
6970 | } else { | |
428b2edd | 6971 | OVS_NOT_REACHED(); |
64626975 | 6972 | } |
2e1ae200 JR |
6973 | |
6974 | bad_len: | |
437d0d22 | 6975 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
2e1ae200 JR |
6976 | "bytes at end", msg->size); |
6977 | return OFPERR_OFPBRC_BAD_LEN; | |
64626975 SH |
6978 | } |
6979 | ||
6980 | static void | |
6981 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
6982 | struct ofp10_queue_stats *qs10) | |
6983 | { | |
4e022ec0 | 6984 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
6985 | memset(qs10->pad, 0, sizeof qs10->pad); |
6986 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6987 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
6988 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
6989 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
6990 | } |
6991 | ||
6992 | static void | |
6993 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
6994 | struct ofp11_queue_stats *qs11) | |
6995 | { | |
6996 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
6997 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6998 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
6999 | qs11->tx_packets = htonll(oqs->tx_packets); | |
7000 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
7001 | } |
7002 | ||
2e1ae200 JR |
7003 | static void |
7004 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
7005 | struct ofp13_queue_stats *qs13) | |
7006 | { | |
7007 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
7008 | if (oqs->duration_sec != UINT32_MAX) { |
7009 | qs13->duration_sec = htonl(oqs->duration_sec); | |
7010 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
7011 | } else { | |
b8266395 BP |
7012 | qs13->duration_sec = OVS_BE32_MAX; |
7013 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 7014 | } |
2e1ae200 JR |
7015 | } |
7016 | ||
64626975 SH |
7017 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
7018 | void | |
7019 | ofputil_append_queue_stat(struct list *replies, | |
7020 | const struct ofputil_queue_stats *oqs) | |
7021 | { | |
7022 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
7023 | struct ofp_header *oh = msg->data; | |
7024 | ||
7025 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
7026 | case OFP13_VERSION: { |
7027 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7028 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
7029 | break; | |
7030 | } | |
7031 | ||
64626975 SH |
7032 | case OFP12_VERSION: |
7033 | case OFP11_VERSION: { | |
2e1ae200 | 7034 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
7035 | ofputil_queue_stats_to_ofp11(oqs, reply); |
7036 | break; | |
7037 | } | |
7038 | ||
7039 | case OFP10_VERSION: { | |
2e1ae200 | 7040 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
7041 | ofputil_queue_stats_to_ofp10(oqs, reply); |
7042 | break; | |
7043 | } | |
7044 | ||
c37c0382 AC |
7045 | case OFP14_VERSION: |
7046 | OVS_NOT_REACHED(); | |
7047 | break; | |
7048 | ||
64626975 | 7049 | default: |
428b2edd | 7050 | OVS_NOT_REACHED(); |
64626975 SH |
7051 | } |
7052 | } |