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fa37b408 | 1 | /* |
cb22974d | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 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" |
fa37b408 | 45 | |
d98e6007 | 46 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
47 | |
48 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
49 | * in the peer and so there's not much point in showing a lot of them. */ | |
50 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
51 | ||
0596e897 BP |
52 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
53 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
54 | * is wildcarded. | |
55 | * | |
56 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
57 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
58 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
59 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
60 | * wildcarded. */ | |
61 | ovs_be32 | |
62 | ofputil_wcbits_to_netmask(int wcbits) | |
63 | { | |
64 | wcbits &= 0x3f; | |
65 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
66 | } | |
67 | ||
68 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
69 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
70 | * between 0 and 32 inclusive. | |
71 | * | |
72 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
73 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
74 | int |
75 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
76 | { | |
aad29cd1 | 77 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
78 | } |
79 | ||
eec25dc1 | 80 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 81 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
82 | * responsibility to handle the special case where the flow match's dl_vlan is |
83 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 84 | void |
eec25dc1 | 85 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 86 | { |
dc235f7f | 87 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 22); |
a877206f | 88 | |
81a76618 | 89 | /* Initialize most of wc. */ |
f9ba8dad | 90 | flow_wildcards_init_catchall(wc); |
bad68a99 | 91 | |
0bdc4bec | 92 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 93 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 94 | } |
5d9499c4 BP |
95 | |
96 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 97 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 98 | } |
7257b535 | 99 | |
851d3105 | 100 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 101 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 102 | } |
26720e24 BP |
103 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
104 | >> OFPFW10_NW_SRC_SHIFT); | |
105 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
106 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 107 | |
eec25dc1 | 108 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 109 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 110 | } |
eec25dc1 | 111 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 112 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
113 | } |
114 | ||
eec25dc1 | 115 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
26720e24 | 116 | memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN); |
73c0ce34 | 117 | } |
eec25dc1 | 118 | if (!(ofpfw & OFPFW10_DL_DST)) { |
26720e24 | 119 | memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN); |
d8ae4d67 | 120 | } |
e2170cff | 121 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 122 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 123 | } |
d8ae4d67 | 124 | |
eb6f28db | 125 | /* VLAN TCI mask. */ |
eec25dc1 | 126 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 127 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 128 | } |
eec25dc1 | 129 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 130 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
131 | } |
132 | } | |
133 | ||
81a76618 | 134 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 135 | void |
81a76618 BP |
136 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
137 | struct match *match) | |
138 | { | |
139 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
140 | ||
141 | /* Initialize match->wc. */ | |
296e07ac | 142 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
143 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
144 | ||
145 | /* Initialize most of match->flow. */ | |
146 | match->flow.nw_src = ofmatch->nw_src; | |
147 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 148 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
149 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
150 | match->flow.tp_src = ofmatch->tp_src; | |
151 | match->flow.tp_dst = ofmatch->tp_dst; | |
152 | memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN); | |
153 | memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN); | |
154 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; | |
155 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 156 | |
66642cb4 | 157 | /* Translate VLANs. */ |
0c436519 | 158 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 159 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
160 | /* Match only packets without 802.1Q header. |
161 | * | |
eec25dc1 | 162 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 163 | * |
eec25dc1 | 164 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
165 | * because we can't have a specific PCP without an 802.1Q header. |
166 | * However, older versions of OVS treated this as matching packets | |
167 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
168 | match->flow.vlan_tci = htons(0); |
169 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
170 | } else { |
171 | ovs_be16 vid, pcp, tci; | |
172 | ||
81a76618 BP |
173 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
174 | pcp = htons((ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK); | |
47271d0d | 175 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 176 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
177 | } |
178 | ||
d8ae4d67 | 179 | /* Clean up. */ |
81a76618 | 180 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
181 | } |
182 | ||
81a76618 | 183 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 184 | void |
81a76618 BP |
185 | ofputil_match_to_ofp10_match(const struct match *match, |
186 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 187 | { |
81a76618 | 188 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 189 | uint32_t ofpfw; |
d8ae4d67 | 190 | |
66642cb4 | 191 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 192 | ofpfw = 0; |
4e022ec0 | 193 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
194 | ofpfw |= OFPFW10_IN_PORT; |
195 | } | |
26720e24 | 196 | if (!wc->masks.dl_type) { |
27cafc5f BP |
197 | ofpfw |= OFPFW10_DL_TYPE; |
198 | } | |
26720e24 | 199 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
200 | ofpfw |= OFPFW10_NW_PROTO; |
201 | } | |
26720e24 | 202 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 203 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 204 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 205 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 206 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 207 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 208 | } |
26720e24 | 209 | if (!wc->masks.tp_src) { |
eec25dc1 | 210 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 211 | } |
26720e24 | 212 | if (!wc->masks.tp_dst) { |
eec25dc1 | 213 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 214 | } |
26720e24 | 215 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 216 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 217 | } |
26720e24 | 218 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 219 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 220 | } |
ff9d3826 | 221 | |
66642cb4 | 222 | /* Translate VLANs. */ |
81a76618 BP |
223 | ofmatch->dl_vlan = htons(0); |
224 | ofmatch->dl_vlan_pcp = 0; | |
225 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 226 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
227 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
228 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
229 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
41ca9a1e | 230 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 231 | } else { |
81a76618 | 232 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 233 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 234 | } else { |
81a76618 | 235 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
236 | } |
237 | ||
81a76618 | 238 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 239 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 240 | } else { |
81a76618 | 241 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
242 | } |
243 | } | |
244 | ||
245 | /* Compose most of the match structure. */ | |
81a76618 | 246 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 247 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
81a76618 BP |
248 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
249 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); | |
250 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); | |
251 | ofmatch->nw_src = match->flow.nw_src; | |
252 | ofmatch->nw_dst = match->flow.nw_dst; | |
253 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
254 | ofmatch->nw_proto = match->flow.nw_proto; | |
255 | ofmatch->tp_src = match->flow.tp_src; | |
256 | ofmatch->tp_dst = match->flow.tp_dst; | |
257 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
258 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
259 | } |
260 | ||
aa319503 | 261 | enum ofperr |
81a76618 BP |
262 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
263 | uint16_t *padded_match_len) | |
aa319503 | 264 | { |
36a16881 SH |
265 | struct ofp11_match_header *omh = buf->data; |
266 | uint16_t match_len; | |
aa319503 | 267 | |
36a16881 | 268 | if (buf->size < sizeof *omh) { |
aa319503 BP |
269 | return OFPERR_OFPBMC_BAD_LEN; |
270 | } | |
271 | ||
36a16881 SH |
272 | match_len = ntohs(omh->length); |
273 | ||
aa319503 | 274 | switch (ntohs(omh->type)) { |
36a16881 SH |
275 | case OFPMT_STANDARD: { |
276 | struct ofp11_match *om; | |
277 | ||
278 | if (match_len != sizeof *om || buf->size < sizeof *om) { | |
aa319503 BP |
279 | return OFPERR_OFPBMC_BAD_LEN; |
280 | } | |
281 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
282 | if (padded_match_len) { |
283 | *padded_match_len = match_len; | |
284 | } | |
81a76618 | 285 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
286 | } |
287 | ||
288 | case OFPMT_OXM: | |
289 | if (padded_match_len) { | |
290 | *padded_match_len = ROUND_UP(match_len, 8); | |
291 | } | |
81a76618 | 292 | return oxm_pull_match(buf, match); |
aa319503 BP |
293 | |
294 | default: | |
295 | return OFPERR_OFPBMC_BAD_TYPE; | |
296 | } | |
297 | } | |
298 | ||
3f0f48cf YT |
299 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
300 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 301 | enum ofperr |
81a76618 BP |
302 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
303 | struct match *match) | |
410698cf | 304 | { |
81a76618 | 305 | uint16_t wc = ntohl(ofmatch->wildcards); |
410698cf BP |
306 | uint8_t dl_src_mask[ETH_ADDR_LEN]; |
307 | uint8_t dl_dst_mask[ETH_ADDR_LEN]; | |
8087f5ff | 308 | bool ipv4, arp, rarp; |
410698cf BP |
309 | int i; |
310 | ||
81a76618 | 311 | match_init_catchall(match); |
410698cf BP |
312 | |
313 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 314 | ofp_port_t ofp_port; |
410698cf BP |
315 | enum ofperr error; |
316 | ||
81a76618 | 317 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
318 | if (error) { |
319 | return OFPERR_OFPBMC_BAD_VALUE; | |
320 | } | |
81a76618 | 321 | match_set_in_port(match, ofp_port); |
410698cf BP |
322 | } |
323 | ||
324 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 325 | dl_src_mask[i] = ~ofmatch->dl_src_mask[i]; |
410698cf | 326 | } |
81a76618 | 327 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); |
410698cf BP |
328 | |
329 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 330 | dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i]; |
410698cf | 331 | } |
81a76618 | 332 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); |
410698cf BP |
333 | |
334 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 335 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 336 | /* Match only packets without a VLAN tag. */ |
81a76618 | 337 | match->flow.vlan_tci = htons(0); |
b8266395 | 338 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 339 | } else { |
81a76618 | 340 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 341 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
342 | match->flow.vlan_tci = htons(VLAN_CFI); |
343 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
344 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 345 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
346 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
347 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
348 | } else { |
349 | /* Invalid VID. */ | |
350 | return OFPERR_OFPBMC_BAD_VALUE; | |
351 | } | |
352 | ||
353 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
354 | if (ofmatch->dl_vlan_pcp <= 7) { |
355 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
356 | << VLAN_PCP_SHIFT); | |
357 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
358 | } else { |
359 | /* Invalid PCP. */ | |
360 | return OFPERR_OFPBMC_BAD_VALUE; | |
361 | } | |
362 | } | |
363 | } | |
364 | } | |
365 | ||
366 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
367 | match_set_dl_type(match, |
368 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
369 | } |
370 | ||
81a76618 BP |
371 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
372 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 373 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
374 | |
375 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 376 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
377 | /* Invalid TOS. */ |
378 | return OFPERR_OFPBMC_BAD_VALUE; | |
379 | } | |
380 | ||
81a76618 | 381 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
382 | } |
383 | ||
8087f5ff | 384 | if (ipv4 || arp || rarp) { |
410698cf | 385 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 386 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 387 | } |
81a76618 BP |
388 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
389 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
390 | } |
391 | ||
392 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
393 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 394 | switch (match->flow.nw_proto) { |
410698cf BP |
395 | case IPPROTO_ICMP: |
396 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
397 | * | |
398 | * The tp_src and tp_dst fields will be ignored unless the | |
399 | * network protocol specified is as TCP, UDP or SCTP. | |
400 | * | |
401 | * but I'm pretty sure we should support ICMP too, otherwise | |
402 | * that's a regression from OF1.0. */ | |
403 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 404 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 405 | if (icmp_type < 0x100) { |
81a76618 | 406 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
407 | } else { |
408 | return OFPERR_OFPBMC_BAD_FIELD; | |
409 | } | |
410 | } | |
411 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 412 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 413 | if (icmp_code < 0x100) { |
81a76618 | 414 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
415 | } else { |
416 | return OFPERR_OFPBMC_BAD_FIELD; | |
417 | } | |
418 | } | |
419 | break; | |
420 | ||
421 | case IPPROTO_TCP: | |
422 | case IPPROTO_UDP: | |
0d56eaf2 | 423 | case IPPROTO_SCTP: |
410698cf | 424 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 425 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
426 | } |
427 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 428 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
429 | } |
430 | break; | |
431 | ||
410698cf BP |
432 | default: |
433 | /* OF1.1 says explicitly to ignore this. */ | |
434 | break; | |
435 | } | |
436 | } | |
437 | ||
b02475c5 | 438 | if (eth_type_mpls(match->flow.dl_type)) { |
410698cf BP |
439 | enum { OFPFW11_MPLS_ALL = OFPFW11_MPLS_LABEL | OFPFW11_MPLS_TC }; |
440 | ||
441 | if ((wc & OFPFW11_MPLS_ALL) != OFPFW11_MPLS_ALL) { | |
442 | /* MPLS not supported. */ | |
443 | return OFPERR_OFPBMC_BAD_TAG; | |
444 | } | |
445 | } | |
446 | ||
81a76618 BP |
447 | match_set_metadata_masked(match, ofmatch->metadata, |
448 | ~ofmatch->metadata_mask); | |
410698cf BP |
449 | |
450 | return 0; | |
451 | } | |
452 | ||
81a76618 | 453 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 454 | void |
81a76618 BP |
455 | ofputil_match_to_ofp11_match(const struct match *match, |
456 | struct ofp11_match *ofmatch) | |
410698cf BP |
457 | { |
458 | uint32_t wc = 0; | |
459 | int i; | |
460 | ||
81a76618 BP |
461 | memset(ofmatch, 0, sizeof *ofmatch); |
462 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
463 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 464 | |
4e022ec0 | 465 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
466 | wc |= OFPFW11_IN_PORT; |
467 | } else { | |
4e022ec0 | 468 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
469 | } |
470 | ||
81a76618 | 471 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
410698cf | 472 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 473 | ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i]; |
410698cf BP |
474 | } |
475 | ||
81a76618 | 476 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); |
410698cf | 477 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 478 | ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i]; |
410698cf BP |
479 | } |
480 | ||
81a76618 | 481 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 482 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
483 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
484 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
485 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
486 | wc |= OFPFW11_DL_VLAN_PCP; |
487 | } else { | |
81a76618 BP |
488 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
489 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 490 | } else { |
81a76618 | 491 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
492 | } |
493 | ||
81a76618 | 494 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
495 | wc |= OFPFW11_DL_VLAN_PCP; |
496 | } else { | |
81a76618 | 497 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
498 | } |
499 | } | |
500 | ||
81a76618 | 501 | if (!match->wc.masks.dl_type) { |
410698cf BP |
502 | wc |= OFPFW11_DL_TYPE; |
503 | } else { | |
81a76618 | 504 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
505 | } |
506 | ||
81a76618 | 507 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
508 | wc |= OFPFW11_NW_TOS; |
509 | } else { | |
81a76618 | 510 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
511 | } |
512 | ||
81a76618 | 513 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
514 | wc |= OFPFW11_NW_PROTO; |
515 | } else { | |
81a76618 | 516 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
517 | } |
518 | ||
81a76618 BP |
519 | ofmatch->nw_src = match->flow.nw_src; |
520 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
521 | ofmatch->nw_dst = match->flow.nw_dst; | |
522 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 523 | |
81a76618 | 524 | if (!match->wc.masks.tp_src) { |
410698cf BP |
525 | wc |= OFPFW11_TP_SRC; |
526 | } else { | |
81a76618 | 527 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
528 | } |
529 | ||
81a76618 | 530 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
531 | wc |= OFPFW11_TP_DST; |
532 | } else { | |
81a76618 | 533 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
534 | } |
535 | ||
536 | /* MPLS not supported. */ | |
537 | wc |= OFPFW11_MPLS_LABEL; | |
538 | wc |= OFPFW11_MPLS_TC; | |
539 | ||
81a76618 BP |
540 | ofmatch->metadata = match->flow.metadata; |
541 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 542 | |
81a76618 | 543 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
544 | } |
545 | ||
75fa58f8 BP |
546 | /* Returns the "typical" length of a match for 'protocol', for use in |
547 | * estimating space to preallocate. */ | |
548 | int | |
549 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
550 | { | |
551 | switch (protocol) { | |
552 | case OFPUTIL_P_OF10_STD: | |
553 | case OFPUTIL_P_OF10_STD_TID: | |
554 | return sizeof(struct ofp10_match); | |
555 | ||
556 | case OFPUTIL_P_OF10_NXM: | |
557 | case OFPUTIL_P_OF10_NXM_TID: | |
558 | return NXM_TYPICAL_LEN; | |
559 | ||
560 | case OFPUTIL_P_OF11_STD: | |
561 | return sizeof(struct ofp11_match); | |
562 | ||
563 | case OFPUTIL_P_OF12_OXM: | |
564 | case OFPUTIL_P_OF13_OXM: | |
565 | return NXM_TYPICAL_LEN; | |
566 | ||
567 | default: | |
568 | NOT_REACHED(); | |
569 | } | |
570 | } | |
571 | ||
572 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
573 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
574 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
575 | * in OpenFlow 1.1 or later. | |
576 | * | |
577 | * This function can cause 'b''s data to be reallocated. | |
578 | * | |
579 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
580 | * returns zero. */ | |
581 | int | |
582 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
583 | enum ofputil_protocol protocol) | |
584 | { | |
585 | switch (protocol) { | |
586 | case OFPUTIL_P_OF10_STD: | |
587 | case OFPUTIL_P_OF10_STD_TID: | |
588 | case OFPUTIL_P_OF10_NXM: | |
589 | case OFPUTIL_P_OF10_NXM_TID: | |
590 | NOT_REACHED(); | |
591 | ||
592 | case OFPUTIL_P_OF11_STD: { | |
593 | struct ofp11_match *om; | |
594 | ||
595 | /* Make sure that no padding is needed. */ | |
596 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
597 | ||
598 | om = ofpbuf_put_uninit(b, sizeof *om); | |
599 | ofputil_match_to_ofp11_match(match, om); | |
600 | return sizeof *om; | |
601 | } | |
602 | ||
603 | case OFPUTIL_P_OF12_OXM: | |
604 | case OFPUTIL_P_OF13_OXM: | |
605 | return oxm_put_match(b, match); | |
606 | } | |
607 | ||
608 | NOT_REACHED(); | |
609 | } | |
610 | ||
36956a7d | 611 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
612 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
613 | * structure. */ | |
36956a7d BP |
614 | ovs_be16 |
615 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
616 | { | |
617 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
618 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
619 | : flow_dl_type); | |
620 | } | |
621 | ||
eec25dc1 | 622 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
623 | * structure, returns the corresponding 'dl_type' value for use in struct |
624 | * flow. */ | |
625 | ovs_be16 | |
626 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
627 | { | |
628 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
629 | ? htons(FLOW_DL_TYPE_NONE) | |
630 | : ofp_dl_type); | |
631 | } | |
2e4f5fcf | 632 | \f |
27527aa0 | 633 | /* Protocols. */ |
7fa91113 | 634 | |
27527aa0 BP |
635 | struct proto_abbrev { |
636 | enum ofputil_protocol protocol; | |
637 | const char *name; | |
638 | }; | |
639 | ||
640 | /* Most users really don't care about some of the differences between | |
641 | * protocols. These abbreviations help with that. */ | |
642 | static const struct proto_abbrev proto_abbrevs[] = { | |
85813857 BP |
643 | { OFPUTIL_P_ANY, "any" }, |
644 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
6d2c051a | 645 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, |
e71bff1b | 646 | { OFPUTIL_P_ANY_OXM, "OXM" }, |
27527aa0 BP |
647 | }; |
648 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
649 | ||
650 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
2e1ae200 | 651 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 652 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 653 | OFPUTIL_P_OF11_STD, |
85813857 BP |
654 | OFPUTIL_P_OF10_NXM, |
655 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
656 | }; |
657 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
658 | ||
4f13da56 BP |
659 | /* Returns the set of ofputil_protocols that are supported with the given |
660 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
661 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
662 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 663 | enum ofputil_protocol |
4f13da56 | 664 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
665 | { |
666 | switch (version) { | |
2e3fa633 | 667 | case OFP10_VERSION: |
4f13da56 | 668 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
669 | case OFP11_VERSION: |
670 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 671 | case OFP12_VERSION: |
85813857 | 672 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
673 | case OFP13_VERSION: |
674 | return OFPUTIL_P_OF13_OXM; | |
2e3fa633 SH |
675 | default: |
676 | return 0; | |
27527aa0 BP |
677 | } |
678 | } | |
679 | ||
4f13da56 BP |
680 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
681 | * connection that has negotiated the given 'version'. 'version' should | |
682 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
683 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
684 | * outside the valid range. */ | |
685 | enum ofputil_protocol | |
686 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
687 | { | |
688 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
689 | } | |
690 | ||
44d3732d | 691 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 692 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 693 | enum ofp_version |
9e1fd49b BP |
694 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
695 | { | |
696 | switch (protocol) { | |
85813857 BP |
697 | case OFPUTIL_P_OF10_STD: |
698 | case OFPUTIL_P_OF10_STD_TID: | |
699 | case OFPUTIL_P_OF10_NXM: | |
700 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 701 | return OFP10_VERSION; |
75fa58f8 BP |
702 | case OFPUTIL_P_OF11_STD: |
703 | return OFP11_VERSION; | |
85813857 | 704 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 705 | return OFP12_VERSION; |
2e1ae200 JR |
706 | case OFPUTIL_P_OF13_OXM: |
707 | return OFP13_VERSION; | |
9e1fd49b BP |
708 | } |
709 | ||
710 | NOT_REACHED(); | |
711 | } | |
712 | ||
4f13da56 BP |
713 | /* Returns a bitmap of OpenFlow versions that are supported by at |
714 | * least one of the 'protocols'. */ | |
715 | uint32_t | |
716 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
717 | { | |
718 | uint32_t bitmap = 0; | |
719 | ||
720 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
721 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
722 | ||
723 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
724 | } | |
725 | ||
726 | return bitmap; | |
727 | } | |
728 | ||
729 | /* Returns the set of protocols that are supported on top of the | |
730 | * OpenFlow versions included in 'bitmap'. */ | |
731 | enum ofputil_protocol | |
732 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
733 | { | |
734 | enum ofputil_protocol protocols = 0; | |
735 | ||
736 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
737 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
738 | ||
739 | protocols |= ofputil_protocols_from_ofp_version(version); | |
740 | } | |
741 | ||
742 | return protocols; | |
743 | } | |
744 | ||
27527aa0 BP |
745 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
746 | * otherwise. */ | |
7fa91113 | 747 | bool |
27527aa0 | 748 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 749 | { |
27527aa0 BP |
750 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
751 | } | |
752 | ||
753 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
754 | * extension turned on or off if 'enable' is true or false, respectively. | |
755 | * | |
756 | * This extension is only useful for protocols whose "standard" version does | |
757 | * not allow specific tables to be modified. In particular, this is true of | |
758 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
759 | * specifies a table ID and so there is no need for such an extension. When | |
760 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
761 | * extension, this function just returns its 'protocol' argument unchanged | |
762 | * regardless of the value of 'enable'. */ | |
763 | enum ofputil_protocol | |
764 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
765 | { | |
766 | switch (protocol) { | |
85813857 BP |
767 | case OFPUTIL_P_OF10_STD: |
768 | case OFPUTIL_P_OF10_STD_TID: | |
769 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 770 | |
85813857 BP |
771 | case OFPUTIL_P_OF10_NXM: |
772 | case OFPUTIL_P_OF10_NXM_TID: | |
773 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 774 | |
75fa58f8 BP |
775 | case OFPUTIL_P_OF11_STD: |
776 | return OFPUTIL_P_OF11_STD; | |
777 | ||
85813857 BP |
778 | case OFPUTIL_P_OF12_OXM: |
779 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 780 | |
2e1ae200 JR |
781 | case OFPUTIL_P_OF13_OXM: |
782 | return OFPUTIL_P_OF13_OXM; | |
783 | ||
27527aa0 BP |
784 | default: |
785 | NOT_REACHED(); | |
7fa91113 | 786 | } |
27527aa0 | 787 | } |
7fa91113 | 788 | |
27527aa0 BP |
789 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
790 | * some extension to a standard protocol version, the return value is the | |
791 | * standard version of that protocol without any extension. If 'protocol' is a | |
792 | * standard protocol version, returns 'protocol' unchanged. */ | |
793 | enum ofputil_protocol | |
794 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
795 | { | |
796 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
797 | } |
798 | ||
27527aa0 BP |
799 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
800 | enum ofputil_protocol | |
801 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
802 | enum ofputil_protocol new_base) | |
7fa91113 | 803 | { |
27527aa0 BP |
804 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
805 | ||
806 | switch (new_base) { | |
85813857 BP |
807 | case OFPUTIL_P_OF10_STD: |
808 | case OFPUTIL_P_OF10_STD_TID: | |
809 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 810 | |
85813857 BP |
811 | case OFPUTIL_P_OF10_NXM: |
812 | case OFPUTIL_P_OF10_NXM_TID: | |
813 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 814 | |
75fa58f8 BP |
815 | case OFPUTIL_P_OF11_STD: |
816 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
817 | ||
85813857 BP |
818 | case OFPUTIL_P_OF12_OXM: |
819 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 820 | |
2e1ae200 JR |
821 | case OFPUTIL_P_OF13_OXM: |
822 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
823 | ||
7fa91113 BP |
824 | default: |
825 | NOT_REACHED(); | |
826 | } | |
827 | } | |
828 | ||
27527aa0 BP |
829 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
830 | * 'protocol' is either a single protocol or it is a combination of protocols | |
831 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
832 | const char * | |
833 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 834 | { |
27527aa0 BP |
835 | const struct proto_abbrev *p; |
836 | ||
837 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
838 | * warning if we forget any. */ | |
839 | switch (protocol) { | |
85813857 | 840 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
841 | return "NXM-table_id"; |
842 | ||
85813857 | 843 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
844 | return "NXM+table_id"; |
845 | ||
85813857 | 846 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
847 | return "OpenFlow10-table_id"; |
848 | ||
85813857 | 849 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 850 | return "OpenFlow10+table_id"; |
44d3732d | 851 | |
75fa58f8 BP |
852 | case OFPUTIL_P_OF11_STD: |
853 | return "OpenFlow11"; | |
854 | ||
85813857 | 855 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 856 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
857 | |
858 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 859 | return "OXM-OpenFlow13"; |
27527aa0 BP |
860 | } |
861 | ||
862 | /* Check abbreviations. */ | |
863 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
864 | if (protocol == p->protocol) { | |
865 | return p->name; | |
866 | } | |
867 | } | |
868 | ||
869 | return NULL; | |
870 | } | |
871 | ||
872 | /* Returns a string that represents 'protocols'. The return value might be a | |
873 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
874 | * value is "none" if 'protocols' is 0. | |
875 | * | |
876 | * The caller must free the returned string (with free()). */ | |
877 | char * | |
878 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
879 | { | |
880 | struct ds s; | |
881 | ||
cb22974d | 882 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
883 | if (protocols == 0) { |
884 | return xstrdup("none"); | |
885 | } | |
886 | ||
887 | ds_init(&s); | |
888 | while (protocols) { | |
889 | const struct proto_abbrev *p; | |
890 | int i; | |
891 | ||
892 | if (s.length) { | |
893 | ds_put_char(&s, ','); | |
894 | } | |
895 | ||
896 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
897 | if ((protocols & p->protocol) == p->protocol) { | |
898 | ds_put_cstr(&s, p->name); | |
899 | protocols &= ~p->protocol; | |
900 | goto match; | |
901 | } | |
902 | } | |
903 | ||
904 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
905 | enum ofputil_protocol bit = 1u << i; | |
906 | ||
907 | if (protocols & bit) { | |
908 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
909 | protocols &= ~bit; | |
910 | goto match; | |
911 | } | |
912 | } | |
913 | NOT_REACHED(); | |
914 | ||
915 | match: ; | |
916 | } | |
917 | return ds_steal_cstr(&s); | |
918 | } | |
919 | ||
920 | static enum ofputil_protocol | |
921 | ofputil_protocol_from_string__(const char *s, size_t n) | |
922 | { | |
923 | const struct proto_abbrev *p; | |
924 | int i; | |
925 | ||
926 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
927 | enum ofputil_protocol bit = 1u << i; | |
928 | const char *name = ofputil_protocol_to_string(bit); | |
929 | ||
930 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
931 | return bit; | |
932 | } | |
933 | } | |
934 | ||
935 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
936 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
937 | return p->protocol; | |
938 | } | |
939 | } | |
940 | ||
941 | return 0; | |
942 | } | |
943 | ||
944 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
945 | * single protocol name or abbreviation or a comma-separated list of them. | |
946 | * | |
947 | * Aborts the program with an error message if 's' is invalid. */ | |
948 | enum ofputil_protocol | |
949 | ofputil_protocols_from_string(const char *s) | |
950 | { | |
951 | const char *orig_s = s; | |
952 | enum ofputil_protocol protocols; | |
953 | ||
954 | protocols = 0; | |
955 | while (*s) { | |
956 | enum ofputil_protocol p; | |
957 | size_t n; | |
958 | ||
959 | n = strcspn(s, ","); | |
960 | if (n == 0) { | |
961 | s++; | |
962 | continue; | |
963 | } | |
964 | ||
965 | p = ofputil_protocol_from_string__(s, n); | |
966 | if (!p) { | |
967 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
968 | } | |
969 | protocols |= p; | |
970 | ||
971 | s += n; | |
972 | } | |
973 | ||
974 | if (!protocols) { | |
975 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
976 | } | |
977 | return protocols; | |
88ca35ee BP |
978 | } |
979 | ||
7beaa082 | 980 | static int |
03e1125c SH |
981 | ofputil_version_from_string(const char *s) |
982 | { | |
983 | if (!strcasecmp(s, "OpenFlow10")) { | |
984 | return OFP10_VERSION; | |
985 | } | |
986 | if (!strcasecmp(s, "OpenFlow11")) { | |
987 | return OFP11_VERSION; | |
988 | } | |
989 | if (!strcasecmp(s, "OpenFlow12")) { | |
990 | return OFP12_VERSION; | |
991 | } | |
2e1ae200 JR |
992 | if (!strcasecmp(s, "OpenFlow13")) { |
993 | return OFP13_VERSION; | |
994 | } | |
7beaa082 | 995 | return 0; |
03e1125c SH |
996 | } |
997 | ||
998 | static bool | |
e091ef84 | 999 | is_delimiter(unsigned char c) |
03e1125c SH |
1000 | { |
1001 | return isspace(c) || c == ','; | |
1002 | } | |
1003 | ||
1004 | uint32_t | |
1005 | ofputil_versions_from_string(const char *s) | |
1006 | { | |
1007 | size_t i = 0; | |
1008 | uint32_t bitmap = 0; | |
1009 | ||
1010 | while (s[i]) { | |
1011 | size_t j; | |
7beaa082 | 1012 | int version; |
03e1125c SH |
1013 | char *key; |
1014 | ||
1015 | if (is_delimiter(s[i])) { | |
1016 | i++; | |
1017 | continue; | |
1018 | } | |
1019 | j = 0; | |
1020 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1021 | j++; | |
1022 | } | |
1023 | key = xmemdup0(s + i, j); | |
1024 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1025 | if (!version) { |
1026 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1027 | } | |
03e1125c SH |
1028 | free(key); |
1029 | bitmap |= 1u << version; | |
1030 | i += j; | |
1031 | } | |
1032 | ||
1033 | return bitmap; | |
1034 | } | |
1035 | ||
7beaa082 SH |
1036 | uint32_t |
1037 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1038 | { | |
1039 | uint32_t bitmap = 0; | |
1040 | ||
1041 | while (count--) { | |
1042 | int version = ofputil_version_from_string(s[count]); | |
1043 | if (!version) { | |
1044 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1045 | } else { | |
1046 | bitmap |= 1u << version; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | return bitmap; | |
1051 | } | |
1052 | ||
03e1125c SH |
1053 | const char * |
1054 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1055 | { | |
1056 | switch (ofp_version) { | |
1057 | case OFP10_VERSION: | |
1058 | return "OpenFlow10"; | |
1059 | case OFP11_VERSION: | |
1060 | return "OpenFlow11"; | |
1061 | case OFP12_VERSION: | |
1062 | return "OpenFlow12"; | |
2e1ae200 JR |
1063 | case OFP13_VERSION: |
1064 | return "OpenFlow13"; | |
03e1125c SH |
1065 | default: |
1066 | NOT_REACHED(); | |
1067 | } | |
1068 | } | |
1069 | ||
54834960 EJ |
1070 | bool |
1071 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1072 | { | |
1073 | switch (packet_in_format) { | |
1074 | case NXPIF_OPENFLOW10: | |
1075 | case NXPIF_NXM: | |
1076 | return true; | |
1077 | } | |
1078 | ||
1079 | return false; | |
1080 | } | |
1081 | ||
1082 | const char * | |
1083 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1084 | { | |
1085 | switch (packet_in_format) { | |
1086 | case NXPIF_OPENFLOW10: | |
1087 | return "openflow10"; | |
1088 | case NXPIF_NXM: | |
1089 | return "nxm"; | |
1090 | default: | |
1091 | NOT_REACHED(); | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | int | |
1096 | ofputil_packet_in_format_from_string(const char *s) | |
1097 | { | |
1098 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1099 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1100 | : -1); | |
1101 | } | |
1102 | ||
03e1125c SH |
1103 | void |
1104 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1105 | { | |
8989046d | 1106 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1107 | } |
1108 | ||
1109 | void | |
1110 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1111 | { | |
1112 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1113 | } | |
1114 | ||
1115 | static void | |
1116 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1117 | void (*format_version)(struct ds *msg, | |
1118 | enum ofp_version)) | |
1119 | { | |
1120 | while (bitmap) { | |
1121 | format_version(msg, raw_ctz(bitmap)); | |
1122 | bitmap = zero_rightmost_1bit(bitmap); | |
1123 | if (bitmap) { | |
1124 | ds_put_cstr(msg, ", "); | |
1125 | } | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | void | |
1130 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1131 | { | |
1132 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1133 | } | |
1134 | ||
1135 | void | |
1136 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1137 | { | |
1138 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1139 | } | |
1140 | ||
de6c85b0 SH |
1141 | static bool |
1142 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1143 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1144 | { |
1145 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1146 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1147 | uint32_t allowed_versions; |
de6c85b0 SH |
1148 | |
1149 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1150 | return false; | |
1151 | } | |
1152 | ||
1153 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1154 | * current implementation supports. Subsequent elements are ignored which | |
1155 | * should have no effect on session negotiation until Open vSwtich supports | |
1156 | * wire-protocol versions greater than 31. | |
1157 | */ | |
0935de41 | 1158 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1159 | |
0935de41 | 1160 | if (allowed_versions & 1) { |
de6c85b0 SH |
1161 | /* There's no OpenFlow version 0. */ |
1162 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1163 | "version 0x00"); | |
0935de41 | 1164 | allowed_versions &= ~1u; |
de6c85b0 SH |
1165 | } |
1166 | ||
0935de41 | 1167 | if (!allowed_versions) { |
de6c85b0 SH |
1168 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1169 | "version (between 0x01 and 0x1f)"); | |
1170 | return false; | |
1171 | } | |
1172 | ||
0935de41 | 1173 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1174 | return true; |
1175 | } | |
1176 | ||
1177 | static uint32_t | |
1178 | version_bitmap_from_version(uint8_t ofp_version) | |
1179 | { | |
1180 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1181 | } | |
1182 | ||
1183 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1184 | * the set of OpenFlow versions for which 'oh' announces support. | |
1185 | * | |
1186 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1187 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1188 | * returns false if 'oh' contains some data that could not be fully understood, | |
1189 | * true if 'oh' was completely parsed. */ | |
1190 | bool | |
1191 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1192 | { | |
1193 | struct ofpbuf msg; | |
1194 | bool ok = true; | |
1195 | ||
1196 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1197 | ofpbuf_pull(&msg, sizeof *oh); | |
1198 | ||
1199 | *allowed_versions = version_bitmap_from_version(oh->version); | |
1200 | while (msg.size) { | |
1201 | const struct ofp_hello_elem_header *oheh; | |
1202 | unsigned int len; | |
1203 | ||
1204 | if (msg.size < sizeof *oheh) { | |
1205 | return false; | |
1206 | } | |
1207 | ||
1208 | oheh = msg.data; | |
1209 | len = ntohs(oheh->length); | |
1210 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1211 | return false; | |
1212 | } | |
1213 | ||
1214 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1215 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1216 | ok = false; | |
1217 | } | |
1218 | } | |
1219 | ||
1220 | return ok; | |
1221 | } | |
1222 | ||
1223 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1224 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1225 | static bool |
de6c85b0 SH |
1226 | should_send_version_bitmap(uint32_t allowed_versions) |
1227 | { | |
1228 | return !is_pow2((allowed_versions >> 1) + 1); | |
1229 | } | |
1230 | ||
1231 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1232 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1233 | struct ofpbuf * | |
1234 | ofputil_encode_hello(uint32_t allowed_versions) | |
1235 | { | |
1236 | enum ofp_version ofp_version; | |
1237 | struct ofpbuf *msg; | |
1238 | ||
1239 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1240 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1241 | ||
1242 | if (should_send_version_bitmap(allowed_versions)) { | |
1243 | struct ofp_hello_elem_header *oheh; | |
1244 | uint16_t map_len; | |
1245 | ||
74c4b9c1 | 1246 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1247 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1248 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1249 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1250 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1251 | |
1252 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1253 | } |
1254 | ||
1255 | return msg; | |
1256 | } | |
1257 | ||
27527aa0 BP |
1258 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1259 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1260 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1261 | * connection if the switch processes the returned message correctly. (If | |
1262 | * '*next != want' then the caller will have to iterate.) | |
1263 | * | |
e43928f2 BP |
1264 | * If 'current == want', or if it is not possible to transition from 'current' |
1265 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1266 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1267 | struct ofpbuf * |
1268 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1269 | enum ofputil_protocol want, | |
1270 | enum ofputil_protocol *next) | |
1271 | { | |
e43928f2 | 1272 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1273 | enum ofputil_protocol cur_base, want_base; |
1274 | bool cur_tid, want_tid; | |
1275 | ||
e43928f2 BP |
1276 | cur_version = ofputil_protocol_to_ofp_version(current); |
1277 | want_version = ofputil_protocol_to_ofp_version(want); | |
1278 | if (cur_version != want_version) { | |
1279 | *next = current; | |
1280 | return NULL; | |
1281 | } | |
1282 | ||
27527aa0 BP |
1283 | cur_base = ofputil_protocol_to_base(current); |
1284 | want_base = ofputil_protocol_to_base(want); | |
1285 | if (cur_base != want_base) { | |
1286 | *next = ofputil_protocol_set_base(current, want_base); | |
1287 | ||
1288 | switch (want_base) { | |
85813857 | 1289 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1290 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1291 | ||
85813857 | 1292 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1293 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1294 | ||
75fa58f8 | 1295 | case OFPUTIL_P_OF11_STD: |
85813857 | 1296 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1297 | case OFPUTIL_P_OF13_OXM: |
75fa58f8 | 1298 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1299 | * verified above that we're not trying to change versions. */ |
310f3699 | 1300 | NOT_REACHED(); |
44d3732d | 1301 | |
85813857 BP |
1302 | case OFPUTIL_P_OF10_STD_TID: |
1303 | case OFPUTIL_P_OF10_NXM_TID: | |
27527aa0 BP |
1304 | NOT_REACHED(); |
1305 | } | |
1306 | } | |
1307 | ||
1308 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1309 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1310 | if (cur_tid != want_tid) { | |
1311 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1312 | return ofputil_make_flow_mod_table_id(want_tid); | |
1313 | } | |
1314 | ||
cb22974d | 1315 | ovs_assert(current == want); |
27527aa0 BP |
1316 | |
1317 | *next = current; | |
1318 | return NULL; | |
88ca35ee BP |
1319 | } |
1320 | ||
27527aa0 BP |
1321 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1322 | * format to 'nxff'. */ | |
88ca35ee | 1323 | struct ofpbuf * |
27527aa0 | 1324 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1325 | { |
73dbf4ab | 1326 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1327 | struct ofpbuf *msg; |
1328 | ||
cb22974d | 1329 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1330 | |
982697a4 BP |
1331 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1332 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1333 | sff->format = htonl(nxff); |
88ca35ee BP |
1334 | |
1335 | return msg; | |
1336 | } | |
1337 | ||
27527aa0 BP |
1338 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1339 | * otherwise. */ | |
1340 | enum ofputil_protocol | |
1341 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1342 | { | |
1343 | switch (flow_format) { | |
1344 | case NXFF_OPENFLOW10: | |
85813857 | 1345 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1346 | |
1347 | case NXFF_NXM: | |
85813857 | 1348 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1349 | |
1350 | default: | |
1351 | return 0; | |
1352 | } | |
1353 | } | |
1354 | ||
1355 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1356 | bool | |
1357 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1358 | { | |
1359 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1360 | } | |
1361 | ||
1362 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1363 | * value. */ | |
1364 | const char * | |
1365 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1366 | { | |
1367 | switch (flow_format) { | |
1368 | case NXFF_OPENFLOW10: | |
1369 | return "openflow10"; | |
1370 | case NXFF_NXM: | |
1371 | return "nxm"; | |
1372 | default: | |
1373 | NOT_REACHED(); | |
1374 | } | |
1375 | } | |
1376 | ||
54834960 | 1377 | struct ofpbuf * |
3f4a1939 SH |
1378 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1379 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1380 | { |
73dbf4ab | 1381 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1382 | struct ofpbuf *msg; |
1383 | ||
3f4a1939 | 1384 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1385 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1386 | spif->format = htonl(packet_in_format); |
1387 | ||
1388 | return msg; | |
1389 | } | |
1390 | ||
6c1491fb BP |
1391 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1392 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1393 | struct ofpbuf * | |
1394 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1395 | { | |
73dbf4ab | 1396 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1397 | struct ofpbuf *msg; |
1398 | ||
982697a4 BP |
1399 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1400 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1401 | nfmti->set = flow_mod_table_id; |
1402 | return msg; | |
1403 | } | |
1404 | ||
0fb88c18 BP |
1405 | struct ofputil_flow_mod_flag { |
1406 | uint16_t raw_flag; | |
1407 | enum ofp_version min_version, max_version; | |
1408 | enum ofputil_flow_mod_flags flag; | |
1409 | }; | |
1410 | ||
1411 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1412 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1413 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1414 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1415 | OFPUTIL_FF_EMERG }, | |
1416 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1417 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1418 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1419 | { 0, 0, 0, 0 }, | |
1420 | }; | |
1421 | ||
1422 | static enum ofperr | |
1423 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1424 | enum ofp_flow_mod_command command, | |
1425 | enum ofp_version version, | |
1426 | enum ofputil_flow_mod_flags *flagsp) | |
1427 | { | |
1428 | uint16_t raw_flags = ntohs(raw_flags_); | |
1429 | const struct ofputil_flow_mod_flag *f; | |
1430 | ||
1431 | *flagsp = 0; | |
1432 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1433 | if (raw_flags & f->raw_flag | |
1434 | && version >= f->min_version | |
1435 | && (!f->max_version || version <= f->max_version)) { | |
1436 | raw_flags &= ~f->raw_flag; | |
1437 | *flagsp |= f->flag; | |
1438 | } | |
1439 | } | |
1440 | ||
1441 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1442 | * never do. | |
1443 | * | |
1444 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1445 | * resets counters. */ | |
1446 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1447 | && command == OFPFC_ADD) { | |
1448 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1449 | } | |
1450 | ||
1451 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1452 | } | |
1453 | ||
1454 | static ovs_be16 | |
1455 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1456 | enum ofp_version version) | |
1457 | { | |
1458 | const struct ofputil_flow_mod_flag *f; | |
1459 | uint16_t raw_flags; | |
1460 | ||
1461 | raw_flags = 0; | |
1462 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1463 | if (f->flag & flags | |
1464 | && version >= f->min_version | |
1465 | && (!f->max_version || version <= f->max_version)) { | |
1466 | raw_flags |= f->raw_flag; | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | return htons(raw_flags); | |
1471 | } | |
1472 | ||
7fa91113 BP |
1473 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1474 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1475 | * code. | |
1476 | * | |
f25d0cf3 BP |
1477 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1478 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1479 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1480 | * | |
1481 | * Does not validate the flow_mod actions. The caller should do that, with | |
1482 | * ofpacts_check(). */ | |
90bf1e07 | 1483 | enum ofperr |
a9a2da38 | 1484 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1485 | const struct ofp_header *oh, |
f25d0cf3 BP |
1486 | enum ofputil_protocol protocol, |
1487 | struct ofpbuf *ofpacts) | |
2e4f5fcf | 1488 | { |
0fb88c18 BP |
1489 | ovs_be16 raw_flags; |
1490 | enum ofperr error; | |
2e4f5fcf | 1491 | struct ofpbuf b; |
982697a4 | 1492 | enum ofpraw raw; |
2e4f5fcf | 1493 | |
2013493b | 1494 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1495 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1496 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1497 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1498 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1499 | |
bbc32a88 | 1500 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1501 | |
81a76618 | 1502 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1503 | if (error) { |
1504 | return error; | |
1c0b7503 BP |
1505 | } |
1506 | ||
a7a2d006 JS |
1507 | error = ofpacts_pull_openflow11_instructions(&b, oh->version, |
1508 | b.size, ofpacts); | |
f25d0cf3 BP |
1509 | if (error) { |
1510 | return error; | |
1511 | } | |
1512 | ||
2e4f5fcf | 1513 | /* Translate the message. */ |
81a76618 | 1514 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1515 | if (ofm->command == OFPFC_ADD |
1516 | || (oh->version == OFP11_VERSION | |
1517 | && (ofm->command == OFPFC_MODIFY || | |
1518 | ofm->command == OFPFC_MODIFY_STRICT) | |
1519 | && ofm->cookie_mask == htonll(0))) { | |
1520 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1521 | * not match on the cookie is treated as an "add" if there is no | |
1522 | * match. */ | |
aa319503 BP |
1523 | fm->cookie = htonll(0); |
1524 | fm->cookie_mask = htonll(0); | |
1525 | fm->new_cookie = ofm->cookie; | |
1526 | } else { | |
aa319503 BP |
1527 | fm->cookie = ofm->cookie; |
1528 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1529 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1530 | } |
23342857 | 1531 | fm->modify_cookie = false; |
aa319503 BP |
1532 | fm->command = ofm->command; |
1533 | fm->table_id = ofm->table_id; | |
2e4f5fcf BP |
1534 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1535 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1536 | fm->buffer_id = ntohl(ofm->buffer_id); | |
aa319503 | 1537 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1538 | if (error) { |
1539 | return error; | |
1540 | } | |
7395c052 NZ |
1541 | fm->out_group = ntohl(ofm->out_group); |
1542 | ||
09861c3f JR |
1543 | if ((ofm->command == OFPFC_DELETE |
1544 | || ofm->command == OFPFC_DELETE_STRICT) | |
1545 | && ofm->out_group != htonl(OFPG_ANY)) { | |
fb9515e1 | 1546 | return OFPERR_OFPFMFC_UNKNOWN; |
2e4f5fcf | 1547 | } |
0fb88c18 | 1548 | raw_flags = ofm->flags; |
aa319503 | 1549 | } else { |
0fb88c18 BP |
1550 | uint16_t command; |
1551 | ||
aa319503 BP |
1552 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1553 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1554 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1555 | |
1556 | /* Get the ofp10_flow_mod. */ | |
1557 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1558 | ||
aa319503 | 1559 | /* Translate the rule. */ |
81a76618 BP |
1560 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1561 | ofputil_normalize_match(&fm->match); | |
aa319503 BP |
1562 | |
1563 | /* Now get the actions. */ | |
1564 | error = ofpacts_pull_openflow10(&b, b.size, ofpacts); | |
1565 | if (error) { | |
1566 | return error; | |
1567 | } | |
1568 | ||
81a76618 BP |
1569 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1570 | * highest possible priority. */ | |
1571 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1572 | ? ntohs(ofm->priority) | |
1573 | : UINT16_MAX); | |
1574 | ||
aa319503 BP |
1575 | /* Translate the message. */ |
1576 | command = ntohs(ofm->command); | |
1577 | fm->cookie = htonll(0); | |
1578 | fm->cookie_mask = htonll(0); | |
1579 | fm->new_cookie = ofm->cookie; | |
1580 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1581 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1582 | fm->buffer_id = ntohl(ofm->buffer_id); | |
4e022ec0 | 1583 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1584 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1585 | raw_flags = ofm->flags; |
aa319503 BP |
1586 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1587 | /* Nicira extended flow_mod. */ | |
1588 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1589 | |
1590 | /* Dissect the message. */ | |
1591 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1592 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1593 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1594 | if (error) { |
1595 | return error; | |
1596 | } | |
1597 | error = ofpacts_pull_openflow10(&b, b.size, ofpacts); | |
1598 | if (error) { | |
1599 | return error; | |
1600 | } | |
1601 | ||
1602 | /* Translate the message. */ | |
1603 | command = ntohs(nfm->command); | |
1604 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1605 | /* Flow additions may only set a new cookie, not match an | |
1606 | * existing cookie. */ | |
1607 | return OFPERR_NXBRC_NXM_INVALID; | |
1608 | } | |
81a76618 | 1609 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1610 | fm->new_cookie = nfm->cookie; |
1611 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1612 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
1613 | fm->buffer_id = ntohl(nfm->buffer_id); | |
4e022ec0 | 1614 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1615 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1616 | raw_flags = nfm->flags; |
aa319503 BP |
1617 | } else { |
1618 | NOT_REACHED(); | |
1619 | } | |
1620 | ||
b8266395 | 1621 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1622 | if (protocol & OFPUTIL_P_TID) { |
1623 | fm->command = command & 0xff; | |
1624 | fm->table_id = command >> 8; | |
1625 | } else { | |
1626 | fm->command = command; | |
1627 | fm->table_id = 0xff; | |
e729e793 | 1628 | } |
2e4f5fcf BP |
1629 | } |
1630 | ||
f25d0cf3 BP |
1631 | fm->ofpacts = ofpacts->data; |
1632 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1633 | |
0fb88c18 BP |
1634 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1635 | oh->version, &fm->flags); | |
1636 | if (error) { | |
1637 | return error; | |
1638 | } | |
1639 | ||
1640 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1641 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1642 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1643 | * | |
1644 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1645 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1646 | * code, so just state that the flow table is full. */ | |
1647 | return (fm->hard_timeout || fm->idle_timeout | |
1648 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1649 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1650 | } | |
1651 | ||
2e4f5fcf BP |
1652 | return 0; |
1653 | } | |
1654 | ||
638a19b0 JR |
1655 | static enum ofperr |
1656 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1657 | struct ofpbuf *bands) | |
1658 | { | |
1659 | const struct ofp13_meter_band_header *ombh; | |
1660 | struct ofputil_meter_band *mb; | |
1661 | uint16_t n = 0; | |
1662 | ||
1663 | ombh = ofpbuf_try_pull(msg, len); | |
1664 | if (!ombh) { | |
1665 | return OFPERR_OFPBRC_BAD_LEN; | |
1666 | } | |
1667 | ||
1668 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1669 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1670 | /* All supported band types have the same length. */ |
638a19b0 JR |
1671 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1672 | return OFPERR_OFPBRC_BAD_LEN; | |
1673 | } | |
1674 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1675 | mb->type = ntohs(ombh->type); | |
1676 | mb->rate = ntohl(ombh->rate); | |
1677 | mb->burst_size = ntohl(ombh->burst_size); | |
1678 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1679 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1680 | n++; | |
1681 | len -= ombh_len; | |
db5a1019 AW |
1682 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1683 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1684 | } |
1685 | if (len) { | |
1686 | return OFPERR_OFPBRC_BAD_LEN; | |
1687 | } | |
1688 | *n_bands = n; | |
1689 | return 0; | |
1690 | } | |
1691 | ||
1692 | enum ofperr | |
1693 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1694 | struct ofputil_meter_mod *mm, | |
1695 | struct ofpbuf *bands) | |
1696 | { | |
1697 | const struct ofp13_meter_mod *omm; | |
1698 | struct ofpbuf b; | |
1699 | ||
1700 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1701 | ofpraw_pull_assert(&b); | |
1702 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1703 | ||
1704 | /* Translate the message. */ | |
1705 | mm->command = ntohs(omm->command); | |
1706 | mm->meter.meter_id = ntohl(omm->meter_id); | |
1707 | ||
1708 | if (mm->command == OFPMC13_DELETE) { | |
1709 | mm->meter.flags = 0; | |
1710 | mm->meter.n_bands = 0; | |
1711 | mm->meter.bands = NULL; | |
1712 | } else { | |
1713 | enum ofperr error; | |
1714 | ||
1715 | mm->meter.flags = ntohs(omm->flags); | |
1716 | mm->meter.bands = bands->data; | |
1717 | ||
0445637d | 1718 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1719 | if (error) { |
1720 | return error; | |
1721 | } | |
1722 | } | |
1723 | return 0; | |
1724 | } | |
1725 | ||
1726 | void | |
1727 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1728 | { | |
1729 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1730 | *meter_id = ntohl(omr->meter_id); | |
1731 | } | |
1732 | ||
1733 | struct ofpbuf * | |
1734 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1735 | enum ofputil_meter_request_type type, | |
1736 | uint32_t meter_id) | |
1737 | { | |
1738 | struct ofpbuf *msg; | |
1739 | ||
1740 | enum ofpraw raw; | |
1741 | ||
1742 | switch (type) { | |
1743 | case OFPUTIL_METER_CONFIG: | |
1744 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1745 | break; | |
1746 | case OFPUTIL_METER_STATS: | |
1747 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1748 | break; | |
1749 | default: | |
1750 | case OFPUTIL_METER_FEATURES: | |
1751 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1752 | break; | |
1753 | } | |
1754 | ||
1755 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1756 | ||
1757 | if (type != OFPUTIL_METER_FEATURES) { | |
1758 | struct ofp13_meter_multipart_request *omr; | |
1759 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1760 | omr->meter_id = htonl(meter_id); | |
1761 | } | |
1762 | return msg; | |
1763 | } | |
1764 | ||
1765 | static void | |
1766 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1767 | struct ofpbuf *msg) | |
1768 | { | |
1769 | uint16_t n = 0; | |
1770 | ||
1771 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1772 | /* Currently all band types have same size. */ |
638a19b0 JR |
1773 | struct ofp13_meter_band_dscp_remark *ombh; |
1774 | size_t ombh_len = sizeof *ombh; | |
1775 | ||
1776 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1777 | ||
1778 | ombh->type = htons(mb->type); | |
1779 | ombh->len = htons(ombh_len); | |
1780 | ombh->rate = htonl(mb->rate); | |
1781 | ombh->burst_size = htonl(mb->burst_size); | |
1782 | ombh->prec_level = mb->prec_level; | |
1783 | ||
1784 | mb++; | |
1785 | } | |
1786 | } | |
1787 | ||
1788 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1789 | void | |
1790 | ofputil_append_meter_config(struct list *replies, | |
1791 | const struct ofputil_meter_config *mc) | |
1792 | { | |
1793 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
1794 | size_t start_ofs = msg->size; | |
1795 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); | |
1796 | reply->flags = htons(mc->flags); | |
1797 | reply->meter_id = htonl(mc->meter_id); | |
1798 | ||
1799 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1800 | ||
1801 | reply->length = htons(msg->size - start_ofs); | |
1802 | ||
1803 | ofpmp_postappend(replies, start_ofs); | |
1804 | } | |
1805 | ||
1806 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1807 | void | |
1808 | ofputil_append_meter_stats(struct list *replies, | |
1809 | const struct ofputil_meter_stats *ms) | |
1810 | { | |
1811 | struct ofp13_meter_stats *reply; | |
1812 | uint16_t n = 0; | |
1813 | uint16_t len; | |
1814 | ||
1815 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1816 | reply = ofpmp_append(replies, len); | |
1817 | ||
1818 | reply->meter_id = htonl(ms->meter_id); | |
1819 | reply->len = htons(len); | |
1820 | memset(reply->pad, 0, sizeof reply->pad); | |
1821 | reply->flow_count = htonl(ms->flow_count); | |
1822 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1823 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1824 | reply->duration_sec = htonl(ms->duration_sec); | |
1825 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1826 | ||
1827 | for (n = 0; n < ms->n_bands; ++n) { | |
1828 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1829 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1830 | ||
1831 | dst->packet_band_count = htonll(src->packet_count); | |
1832 | dst->byte_band_count = htonll(src->byte_count); | |
1833 | } | |
1834 | } | |
1835 | ||
1836 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1837 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1838 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1839 | * it across the call. | |
1840 | * | |
1841 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1842 | * message. Calling this function multiple times for a single 'msg' iterates | |
1843 | * through the replies. 'bands' is cleared for each reply. | |
1844 | * | |
1845 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1846 | * otherwise a positive errno value. */ | |
1847 | int | |
1848 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1849 | struct ofputil_meter_config *mc, | |
1850 | struct ofpbuf *bands) | |
1851 | { | |
1852 | const struct ofp13_meter_config *omc; | |
1853 | enum ofperr err; | |
1854 | ||
1855 | /* Pull OpenFlow headers for the first call. */ | |
1856 | if (!msg->l2) { | |
1857 | ofpraw_pull_assert(msg); | |
1858 | } | |
1859 | ||
1860 | if (!msg->size) { | |
1861 | return EOF; | |
1862 | } | |
1863 | ||
1864 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1865 | if (!omc) { | |
0445637d JR |
1866 | VLOG_WARN_RL(&bad_ofmsg_rl, |
1867 | "OFPMP_METER_CONFIG reply has %zu leftover bytes at end", | |
1868 | msg->size); | |
638a19b0 JR |
1869 | return OFPERR_OFPBRC_BAD_LEN; |
1870 | } | |
1871 | ||
1872 | ofpbuf_clear(bands); | |
1873 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1874 | &mc->n_bands, bands); | |
1875 | if (err) { | |
1876 | return err; | |
1877 | } | |
1878 | mc->meter_id = ntohl(omc->meter_id); | |
1879 | mc->flags = ntohs(omc->flags); | |
1880 | mc->bands = bands->data; | |
1881 | ||
1882 | return 0; | |
1883 | } | |
1884 | ||
1885 | static enum ofperr | |
1886 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1887 | struct ofpbuf *bands) | |
1888 | { | |
1889 | const struct ofp13_meter_band_stats *ombs; | |
1890 | struct ofputil_meter_band_stats *mbs; | |
1891 | uint16_t n, i; | |
1892 | ||
0445637d JR |
1893 | ombs = ofpbuf_try_pull(msg, len); |
1894 | if (!ombs) { | |
1895 | return OFPERR_OFPBRC_BAD_LEN; | |
1896 | } | |
1897 | ||
638a19b0 JR |
1898 | n = len / sizeof *ombs; |
1899 | if (len != n * sizeof *ombs) { | |
1900 | return OFPERR_OFPBRC_BAD_LEN; | |
1901 | } | |
1902 | ||
638a19b0 JR |
1903 | mbs = ofpbuf_put_uninit(bands, len); |
1904 | ||
1905 | for (i = 0; i < n; ++i) { | |
1906 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
1907 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
1908 | } | |
1909 | *n_bands = n; | |
1910 | return 0; | |
1911 | } | |
1912 | ||
1913 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
1914 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
1915 | * decoded into 'bands'. | |
1916 | * | |
1917 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
1918 | * message. Calling this function multiple times for a single 'msg' iterates | |
1919 | * through the replies. 'bands' is cleared for each reply. | |
1920 | * | |
1921 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1922 | * otherwise a positive errno value. */ | |
1923 | int | |
1924 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
1925 | struct ofputil_meter_stats *ms, | |
1926 | struct ofpbuf *bands) | |
1927 | { | |
1928 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
1929 | enum ofperr err; |
1930 | ||
1931 | /* Pull OpenFlow headers for the first call. */ | |
1932 | if (!msg->l2) { | |
1933 | ofpraw_pull_assert(msg); | |
1934 | } | |
1935 | ||
1936 | if (!msg->size) { | |
1937 | return EOF; | |
1938 | } | |
1939 | ||
1940 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
1941 | if (!oms) { | |
0445637d JR |
1942 | VLOG_WARN_RL(&bad_ofmsg_rl, |
1943 | "OFPMP_METER reply has %zu leftover bytes at end", | |
1944 | msg->size); | |
638a19b0 JR |
1945 | return OFPERR_OFPBRC_BAD_LEN; |
1946 | } | |
638a19b0 JR |
1947 | |
1948 | ofpbuf_clear(bands); | |
0445637d JR |
1949 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
1950 | &ms->n_bands, bands); | |
638a19b0 JR |
1951 | if (err) { |
1952 | return err; | |
1953 | } | |
1954 | ms->meter_id = ntohl(oms->meter_id); | |
1955 | ms->flow_count = ntohl(oms->flow_count); | |
1956 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
1957 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
1958 | ms->duration_sec = ntohl(oms->duration_sec); | |
1959 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
1960 | ms->bands = bands->data; | |
1961 | ||
1962 | return 0; | |
1963 | } | |
1964 | ||
1965 | void | |
1966 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
1967 | struct ofputil_meter_features *mf) | |
1968 | { | |
1969 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
1970 | ||
1971 | mf->max_meters = ntohl(omf->max_meter); | |
1972 | mf->band_types = ntohl(omf->band_types); | |
1973 | mf->capabilities = ntohl(omf->capabilities); | |
1974 | mf->max_bands = omf->max_bands; | |
1975 | mf->max_color = omf->max_color; | |
1976 | } | |
1977 | ||
1978 | struct ofpbuf * | |
1979 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
1980 | const struct ofp_header *request) | |
1981 | { | |
1982 | struct ofpbuf *reply; | |
1983 | struct ofp13_meter_features *omf; | |
1984 | ||
1985 | reply = ofpraw_alloc_stats_reply(request, 0); | |
1986 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
1987 | ||
1988 | omf->max_meter = htonl(mf->max_meters); | |
1989 | omf->band_types = htonl(mf->band_types); | |
1990 | omf->capabilities = htonl(mf->capabilities); | |
1991 | omf->max_bands = mf->max_bands; | |
1992 | omf->max_color = mf->max_color; | |
1993 | ||
1994 | return reply; | |
1995 | } | |
1996 | ||
1997 | struct ofpbuf * | |
1998 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
1999 | const struct ofputil_meter_mod *mm) | |
2000 | { | |
2001 | struct ofpbuf *msg; | |
2002 | ||
2003 | struct ofp13_meter_mod *omm; | |
2004 | ||
2005 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2006 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2007 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2008 | omm->command = htons(mm->command); | |
2009 | if (mm->command != OFPMC13_DELETE) { | |
2010 | omm->flags = htons(mm->meter.flags); | |
2011 | } | |
2012 | omm->meter_id = htonl(mm->meter.meter_id); | |
2013 | ||
2014 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2015 | ||
2016 | ofpmsg_update_length(msg); | |
2017 | return msg; | |
2018 | } | |
2019 | ||
aa6305ea SH |
2020 | static ovs_be16 |
2021 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2022 | enum ofputil_protocol protocol) | |
2023 | { | |
2024 | return htons(protocol & OFPUTIL_P_TID | |
2025 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2026 | : fm->command); | |
2027 | } | |
2028 | ||
2e4f5fcf | 2029 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2030 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2031 | struct ofpbuf * |
a9a2da38 | 2032 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2033 | enum ofputil_protocol protocol) |
2e4f5fcf | 2034 | { |
0fb88c18 BP |
2035 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2036 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2037 | struct ofpbuf *msg; |
2038 | ||
27527aa0 | 2039 | switch (protocol) { |
75fa58f8 | 2040 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
2041 | case OFPUTIL_P_OF12_OXM: |
2042 | case OFPUTIL_P_OF13_OXM: { | |
aa6305ea | 2043 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2044 | int tailroom; |
aa6305ea | 2045 | |
75fa58f8 | 2046 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2047 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2048 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2049 | if ((protocol == OFPUTIL_P_OF11_STD |
2050 | && (fm->command == OFPFC_MODIFY || | |
2051 | fm->command == OFPFC_MODIFY_STRICT) | |
2052 | && fm->cookie_mask == htonll(0)) | |
2053 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2054 | ofm->cookie = fm->new_cookie; |
2055 | } else { | |
2056 | ofm->cookie = fm->cookie; | |
2057 | } | |
aa6305ea SH |
2058 | ofm->cookie_mask = fm->cookie_mask; |
2059 | ofm->table_id = fm->table_id; | |
2060 | ofm->command = fm->command; | |
2061 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2062 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2063 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2064 | ofm->buffer_id = htonl(fm->buffer_id); |
2065 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2066 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2067 | ofm->flags = raw_flags; |
75fa58f8 | 2068 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
5b289eaf | 2069 | ofpacts_put_openflow11_instructions(fm->ofpacts, fm->ofpacts_len, msg); |
aa6305ea SH |
2070 | break; |
2071 | } | |
2072 | ||
85813857 BP |
2073 | case OFPUTIL_P_OF10_STD: |
2074 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2075 | struct ofp10_flow_mod *ofm; |
2076 | ||
982697a4 BP |
2077 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2078 | fm->ofpacts_len); | |
2079 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2080 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2081 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2082 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2083 | ofm->idle_timeout = htons(fm->idle_timeout); |
2084 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2085 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2086 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2087 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2088 | ofm->flags = raw_flags; |
5b289eaf | 2089 | ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg); |
27527aa0 | 2090 | break; |
3f192f23 | 2091 | } |
2e4f5fcf | 2092 | |
85813857 BP |
2093 | case OFPUTIL_P_OF10_NXM: |
2094 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2095 | struct nx_flow_mod *nfm; |
2096 | int match_len; | |
2097 | ||
982697a4 BP |
2098 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2099 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2100 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2101 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2102 | nfm->cookie = fm->new_cookie; |
81a76618 | 2103 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
982697a4 | 2104 | nfm = msg->l3; |
2e4f5fcf BP |
2105 | nfm->idle_timeout = htons(fm->idle_timeout); |
2106 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2107 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2108 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2109 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2110 | nfm->flags = raw_flags; |
2e4f5fcf | 2111 | nfm->match_len = htons(match_len); |
5b289eaf | 2112 | ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg); |
27527aa0 | 2113 | break; |
3f192f23 | 2114 | } |
27527aa0 BP |
2115 | |
2116 | default: | |
2e4f5fcf BP |
2117 | NOT_REACHED(); |
2118 | } | |
2119 | ||
982697a4 | 2120 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2121 | return msg; |
2122 | } | |
2123 | ||
90bf1e07 | 2124 | static enum ofperr |
0157ad3a SH |
2125 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2126 | const struct ofp10_flow_stats_request *ofsr, | |
2127 | bool aggregate) | |
2e4f5fcf | 2128 | { |
2e4f5fcf | 2129 | fsr->aggregate = aggregate; |
81a76618 | 2130 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2131 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2132 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2133 | fsr->table_id = ofsr->table_id; |
e729e793 | 2134 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2135 | |
2136 | return 0; | |
2137 | } | |
2138 | ||
0157ad3a SH |
2139 | static enum ofperr |
2140 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2141 | struct ofpbuf *b, bool aggregate) | |
2142 | { | |
2143 | const struct ofp11_flow_stats_request *ofsr; | |
2144 | enum ofperr error; | |
2145 | ||
2146 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2147 | fsr->aggregate = aggregate; | |
2148 | fsr->table_id = ofsr->table_id; | |
2149 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2150 | if (error) { | |
2151 | return error; | |
2152 | } | |
7395c052 | 2153 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2154 | fsr->cookie = ofsr->cookie; |
2155 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2156 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2157 | if (error) { |
2158 | return error; | |
2159 | } | |
2160 | ||
2161 | return 0; | |
2162 | } | |
2163 | ||
90bf1e07 | 2164 | static enum ofperr |
81d1ea94 | 2165 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2166 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2167 | { |
2168 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2169 | enum ofperr error; |
2e4f5fcf | 2170 | |
982697a4 | 2171 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2172 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2173 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2174 | if (error) { |
2175 | return error; | |
2176 | } | |
982697a4 | 2177 | if (b->size) { |
90bf1e07 | 2178 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2179 | } |
2180 | ||
2181 | fsr->aggregate = aggregate; | |
4e022ec0 | 2182 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2183 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2184 | fsr->table_id = nfsr->table_id; |
2185 | ||
2186 | return 0; | |
2187 | } | |
2188 | ||
e8f9a7bb VG |
2189 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2190 | * 'port', suitable for OpenFlow version 'version'. */ | |
2191 | struct ofpbuf * | |
2192 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2193 | ofp_port_t port) | |
2194 | { | |
2195 | struct ofpbuf *request; | |
2196 | ||
2197 | if (version == OFP10_VERSION) { | |
2198 | struct ofp10_queue_get_config_request *qgcr10; | |
2199 | ||
2200 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2201 | version, 0); | |
2202 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2203 | qgcr10->port = htons(ofp_to_u16(port)); | |
2204 | } else { | |
2205 | struct ofp11_queue_get_config_request *qgcr11; | |
2206 | ||
2207 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2208 | version, 0); | |
2209 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2210 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2211 | } | |
2212 | ||
2213 | return request; | |
2214 | } | |
2215 | ||
2216 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2217 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2218 | * code. */ | |
2219 | enum ofperr | |
2220 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2221 | ofp_port_t *port) | |
2222 | { | |
2223 | const struct ofp10_queue_get_config_request *qgcr10; | |
2224 | const struct ofp11_queue_get_config_request *qgcr11; | |
2225 | enum ofpraw raw; | |
2226 | struct ofpbuf b; | |
2227 | ||
2228 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2229 | raw = ofpraw_pull_assert(&b); | |
2230 | ||
2231 | switch ((int) raw) { | |
2232 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2233 | qgcr10 = b.data; | |
2234 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2235 | return 0; | |
2236 | ||
2237 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2238 | qgcr11 = b.data; | |
2239 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2240 | } | |
2241 | ||
2242 | NOT_REACHED(); | |
2243 | } | |
2244 | ||
2245 | /* Constructs and returns the beginning of a reply to | |
2246 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2247 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2248 | struct ofpbuf * | |
2249 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2250 | { | |
2251 | struct ofp10_queue_get_config_reply *qgcr10; | |
2252 | struct ofp11_queue_get_config_reply *qgcr11; | |
2253 | struct ofpbuf *reply; | |
2254 | enum ofperr error; | |
2255 | struct ofpbuf b; | |
2256 | enum ofpraw raw; | |
2257 | ofp_port_t port; | |
2258 | ||
2259 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2260 | ovs_assert(!error); | |
2261 | ||
2262 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2263 | raw = ofpraw_pull_assert(&b); | |
2264 | ||
2265 | switch ((int) raw) { | |
2266 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2267 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2268 | oh, 0); | |
2269 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2270 | qgcr10->port = htons(ofp_to_u16(port)); | |
2271 | break; | |
2272 | ||
2273 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2274 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2275 | oh, 0); | |
2276 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2277 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2278 | break; | |
2279 | ||
2280 | default: | |
2281 | NOT_REACHED(); | |
2282 | } | |
2283 | ||
2284 | return reply; | |
2285 | } | |
2286 | ||
2287 | static void | |
2288 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2289 | uint16_t rate) | |
2290 | { | |
2291 | if (rate != UINT16_MAX) { | |
2292 | struct ofp_queue_prop_rate *oqpr; | |
2293 | ||
2294 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2295 | oqpr->prop_header.property = htons(property); | |
2296 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2297 | oqpr->rate = htons(rate); | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | /* Appends a queue description for 'queue_id' to the | |
2302 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2303 | void | |
2304 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2305 | const struct ofputil_queue_config *oqc) | |
2306 | { | |
2307 | const struct ofp_header *oh = reply->data; | |
2308 | size_t start_ofs, len_ofs; | |
2309 | ovs_be16 *len; | |
2310 | ||
2311 | start_ofs = reply->size; | |
2312 | if (oh->version < OFP12_VERSION) { | |
2313 | struct ofp10_packet_queue *opq10; | |
2314 | ||
2315 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2316 | opq10->queue_id = htonl(oqc->queue_id); | |
2317 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2318 | } else { | |
2319 | struct ofp11_queue_get_config_reply *qgcr11; | |
2320 | struct ofp12_packet_queue *opq12; | |
2321 | ovs_be32 port; | |
2322 | ||
2323 | qgcr11 = reply->l3; | |
2324 | port = qgcr11->port; | |
2325 | ||
2326 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2327 | opq12->port = port; | |
2328 | opq12->queue_id = htonl(oqc->queue_id); | |
2329 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2330 | } | |
2331 | ||
2332 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2333 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2334 | ||
2335 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
2336 | *len = htons(reply->size - start_ofs); | |
2337 | } | |
2338 | ||
2339 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2340 | * stores in '*port' the port that the reply is about. The caller may call | |
2341 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2342 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2343 | * ofperr.*/ | |
2344 | enum ofperr | |
2345 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2346 | { | |
2347 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2348 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2349 | enum ofpraw raw; | |
2350 | ||
2351 | raw = ofpraw_pull_assert(reply); | |
2352 | switch ((int) raw) { | |
2353 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2354 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2355 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2356 | return 0; | |
2357 | ||
2358 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2359 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2360 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2361 | } | |
2362 | ||
2363 | NOT_REACHED(); | |
2364 | } | |
2365 | ||
2366 | static enum ofperr | |
2367 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2368 | { | |
2369 | const struct ofp_queue_prop_rate *oqpr; | |
2370 | ||
2371 | if (hdr->len == htons(sizeof *oqpr)) { | |
2372 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2373 | *rate = ntohs(oqpr->rate); | |
2374 | return 0; | |
2375 | } else { | |
2376 | return OFPERR_OFPBRC_BAD_LEN; | |
2377 | } | |
2378 | } | |
2379 | ||
2380 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2381 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2382 | * must already have pulled off the main header. | |
2383 | * | |
2384 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2385 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2386 | * problem decoding 'reply'. */ | |
2387 | int | |
2388 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2389 | struct ofputil_queue_config *queue) | |
2390 | { | |
2391 | const struct ofp_header *oh; | |
2392 | unsigned int opq_len; | |
2393 | unsigned int len; | |
2394 | ||
2395 | if (!reply->size) { | |
2396 | return EOF; | |
2397 | } | |
2398 | ||
2399 | queue->min_rate = UINT16_MAX; | |
2400 | queue->max_rate = UINT16_MAX; | |
2401 | ||
2402 | oh = reply->l2; | |
2403 | if (oh->version < OFP12_VERSION) { | |
2404 | const struct ofp10_packet_queue *opq10; | |
2405 | ||
2406 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2407 | if (!opq10) { | |
2408 | return OFPERR_OFPBRC_BAD_LEN; | |
2409 | } | |
2410 | queue->queue_id = ntohl(opq10->queue_id); | |
2411 | len = ntohs(opq10->len); | |
2412 | opq_len = sizeof *opq10; | |
2413 | } else { | |
2414 | const struct ofp12_packet_queue *opq12; | |
2415 | ||
2416 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2417 | if (!opq12) { | |
2418 | return OFPERR_OFPBRC_BAD_LEN; | |
2419 | } | |
2420 | queue->queue_id = ntohl(opq12->queue_id); | |
2421 | len = ntohs(opq12->len); | |
2422 | opq_len = sizeof *opq12; | |
2423 | } | |
2424 | ||
2425 | if (len < opq_len || len > reply->size + opq_len || len % 8) { | |
2426 | return OFPERR_OFPBRC_BAD_LEN; | |
2427 | } | |
2428 | len -= opq_len; | |
2429 | ||
2430 | while (len > 0) { | |
2431 | const struct ofp_queue_prop_header *hdr; | |
2432 | unsigned int property; | |
2433 | unsigned int prop_len; | |
2434 | enum ofperr error = 0; | |
2435 | ||
2436 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2437 | prop_len = ntohs(hdr->len); | |
2438 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { | |
2439 | return OFPERR_OFPBRC_BAD_LEN; | |
2440 | } | |
2441 | ||
2442 | property = ntohs(hdr->property); | |
2443 | switch (property) { | |
2444 | case OFPQT_MIN_RATE: | |
2445 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2446 | break; | |
2447 | ||
2448 | case OFPQT_MAX_RATE: | |
2449 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2450 | break; | |
2451 | ||
2452 | default: | |
2453 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2454 | break; | |
2455 | } | |
2456 | if (error) { | |
2457 | return error; | |
2458 | } | |
2459 | ||
2460 | ofpbuf_pull(reply, prop_len); | |
2461 | len -= prop_len; | |
2462 | } | |
2463 | return 0; | |
2464 | } | |
2465 | ||
2e4f5fcf | 2466 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2467 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2468 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2469 | enum ofperr |
81d1ea94 | 2470 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2471 | const struct ofp_header *oh) |
2e4f5fcf | 2472 | { |
982697a4 | 2473 | enum ofpraw raw; |
2e4f5fcf | 2474 | struct ofpbuf b; |
2e4f5fcf | 2475 | |
2013493b | 2476 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2477 | raw = ofpraw_pull_assert(&b); |
2478 | switch ((int) raw) { | |
cfc23141 | 2479 | case OFPRAW_OFPST10_FLOW_REQUEST: |
0157ad3a | 2480 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2481 | |
617da9cd | 2482 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
0157ad3a SH |
2483 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
2484 | ||
2485 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2486 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2487 | |
617da9cd SH |
2488 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2489 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2490 | ||
982697a4 BP |
2491 | case OFPRAW_NXST_FLOW_REQUEST: |
2492 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2493 | |
982697a4 BP |
2494 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2495 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2496 | |
2497 | default: | |
2498 | /* Hey, the caller lied. */ | |
2499 | NOT_REACHED(); | |
2500 | } | |
2501 | } | |
2502 | ||
2503 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2504 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2505 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2506 | struct ofpbuf * |
81d1ea94 | 2507 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2508 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2509 | { |
2510 | struct ofpbuf *msg; | |
982697a4 | 2511 | enum ofpraw raw; |
2e4f5fcf | 2512 | |
27527aa0 | 2513 | switch (protocol) { |
75fa58f8 | 2514 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
2515 | case OFPUTIL_P_OF12_OXM: |
2516 | case OFPUTIL_P_OF13_OXM: { | |
06516c65 SH |
2517 | struct ofp11_flow_stats_request *ofsr; |
2518 | ||
2519 | raw = (fsr->aggregate | |
617da9cd | 2520 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2521 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2522 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2523 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2524 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2525 | ofsr->table_id = fsr->table_id; | |
2526 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2527 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2528 | ofsr->cookie = fsr->cookie; |
2529 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2530 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2531 | break; |
2532 | } | |
2533 | ||
85813857 BP |
2534 | case OFPUTIL_P_OF10_STD: |
2535 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2536 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2537 | |
982697a4 | 2538 | raw = (fsr->aggregate |
617da9cd | 2539 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2540 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2541 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2542 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2543 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2544 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2545 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2546 | break; |
2547 | } | |
2548 | ||
85813857 BP |
2549 | case OFPUTIL_P_OF10_NXM: |
2550 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2551 | struct nx_flow_stats_request *nfsr; |
2552 | int match_len; | |
2553 | ||
982697a4 BP |
2554 | raw = (fsr->aggregate |
2555 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2556 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2557 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2558 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2559 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2560 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2561 | |
982697a4 | 2562 | nfsr = msg->l3; |
4e022ec0 | 2563 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2564 | nfsr->match_len = htons(match_len); |
2565 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2566 | break; |
2567 | } | |
2568 | ||
2569 | default: | |
2e4f5fcf BP |
2570 | NOT_REACHED(); |
2571 | } | |
2572 | ||
2573 | return msg; | |
2574 | } | |
d1e2cf21 | 2575 | |
4ffd1b43 | 2576 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2577 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2578 | * |
2579 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2580 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2581 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2582 | * pointers null and not modify them between calls. | |
2583 | * | |
f27f2134 BP |
2584 | * Most switches don't send the values needed to populate fs->idle_age and |
2585 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2586 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2587 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2588 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2589 | * | |
f25d0cf3 BP |
2590 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2591 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2592 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2593 | * | |
4ffd1b43 BP |
2594 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2595 | * otherwise a positive errno value. */ | |
2596 | int | |
2597 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2598 | struct ofpbuf *msg, |
f25d0cf3 BP |
2599 | bool flow_age_extension, |
2600 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2601 | { |
0fb88c18 | 2602 | const struct ofp_header *oh; |
982697a4 BP |
2603 | enum ofperr error; |
2604 | enum ofpraw raw; | |
4ffd1b43 | 2605 | |
982697a4 BP |
2606 | error = (msg->l2 |
2607 | ? ofpraw_decode(&raw, msg->l2) | |
2608 | : ofpraw_pull(&raw, msg)); | |
2609 | if (error) { | |
2610 | return error; | |
4ffd1b43 | 2611 | } |
0fb88c18 | 2612 | oh = msg->l2; |
4ffd1b43 BP |
2613 | |
2614 | if (!msg->size) { | |
2615 | return EOF; | |
2e1ae200 JR |
2616 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2617 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2618 | const struct ofp11_flow_stats *ofs; |
2619 | size_t length; | |
2620 | uint16_t padded_match_len; | |
2621 | ||
2622 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2623 | if (!ofs) { | |
2624 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover " | |
2625 | "bytes at end", msg->size); | |
2626 | return EINVAL; | |
2627 | } | |
2628 | ||
2629 | length = ntohs(ofs->length); | |
2630 | if (length < sizeof *ofs) { | |
2631 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
2632 | "length %zu", length); | |
2633 | return EINVAL; | |
2634 | } | |
2635 | ||
81a76618 | 2636 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2637 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2638 | return EINVAL; | |
2639 | } | |
2640 | ||
a7a2d006 JS |
2641 | if (ofpacts_pull_openflow11_instructions(msg, oh->version, |
2642 | length - sizeof *ofs - | |
e3b56933 | 2643 | padded_match_len, ofpacts)) { |
6ec5f0c5 SH |
2644 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); |
2645 | return EINVAL; | |
2646 | } | |
2647 | ||
81a76618 | 2648 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2649 | fs->table_id = ofs->table_id; |
2650 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2651 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2652 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2653 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
0fb88c18 BP |
2654 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2655 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2656 | &fs->flags); | |
2657 | if (error) { | |
2658 | return error; | |
2659 | } | |
2660 | } else { | |
2661 | fs->flags = 0; | |
2662 | } | |
6ec5f0c5 SH |
2663 | fs->idle_age = -1; |
2664 | fs->hard_age = -1; | |
2665 | fs->cookie = ofs->cookie; | |
2666 | fs->packet_count = ntohll(ofs->packet_count); | |
2667 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2668 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2669 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2670 | size_t length; |
2671 | ||
2672 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2673 | if (!ofs) { | |
2674 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover " | |
2675 | "bytes at end", msg->size); | |
2676 | return EINVAL; | |
2677 | } | |
2678 | ||
2679 | length = ntohs(ofs->length); | |
2680 | if (length < sizeof *ofs) { | |
2681 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
2682 | "length %zu", length); | |
2683 | return EINVAL; | |
2684 | } | |
2685 | ||
d01c980f | 2686 | if (ofpacts_pull_openflow10(msg, length - sizeof *ofs, ofpacts)) { |
4ffd1b43 BP |
2687 | return EINVAL; |
2688 | } | |
2689 | ||
2690 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2691 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2692 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2693 | fs->table_id = ofs->table_id; |
2694 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2695 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2696 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2697 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
f27f2134 BP |
2698 | fs->idle_age = -1; |
2699 | fs->hard_age = -1; | |
4ffd1b43 BP |
2700 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2701 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2702 | fs->flags = 0; |
982697a4 | 2703 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2704 | const struct nx_flow_stats *nfs; |
f25d0cf3 | 2705 | size_t match_len, actions_len, length; |
4ffd1b43 BP |
2706 | |
2707 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2708 | if (!nfs) { | |
2709 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %zu leftover " | |
2710 | "bytes at end", msg->size); | |
2711 | return EINVAL; | |
2712 | } | |
2713 | ||
2714 | length = ntohs(nfs->length); | |
2715 | match_len = ntohs(nfs->match_len); | |
2716 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
2717 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%zu " | |
2718 | "claims invalid length %zu", match_len, length); | |
2719 | return EINVAL; | |
2720 | } | |
81a76618 | 2721 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2722 | return EINVAL; |
2723 | } | |
2724 | ||
f25d0cf3 | 2725 | actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
d01c980f | 2726 | if (ofpacts_pull_openflow10(msg, actions_len, ofpacts)) { |
4ffd1b43 BP |
2727 | return EINVAL; |
2728 | } | |
2729 | ||
2730 | fs->cookie = nfs->cookie; | |
2731 | fs->table_id = nfs->table_id; | |
2732 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2733 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2734 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2735 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2736 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
f27f2134 BP |
2737 | fs->idle_age = -1; |
2738 | fs->hard_age = -1; | |
2739 | if (flow_age_extension) { | |
2740 | if (nfs->idle_age) { | |
2741 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2742 | } | |
2743 | if (nfs->hard_age) { | |
2744 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2745 | } | |
2746 | } | |
4ffd1b43 BP |
2747 | fs->packet_count = ntohll(nfs->packet_count); |
2748 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2749 | fs->flags = 0; |
4ffd1b43 BP |
2750 | } else { |
2751 | NOT_REACHED(); | |
2752 | } | |
2753 | ||
f25d0cf3 BP |
2754 | fs->ofpacts = ofpacts->data; |
2755 | fs->ofpacts_len = ofpacts->size; | |
2756 | ||
4ffd1b43 BP |
2757 | return 0; |
2758 | } | |
2759 | ||
5e9d0469 BP |
2760 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2761 | * | |
2762 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2763 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2764 | static uint64_t | |
2765 | unknown_to_zero(uint64_t count) | |
2766 | { | |
2767 | return count != UINT64_MAX ? count : 0; | |
2768 | } | |
2769 | ||
349adfb2 BP |
2770 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2771 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2772 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2773 | void |
2774 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
2775 | struct list *replies) | |
2776 | { | |
f25d0cf3 | 2777 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
f25d0cf3 | 2778 | size_t start_ofs = reply->size; |
982697a4 | 2779 | enum ofpraw raw; |
349adfb2 | 2780 | |
982697a4 | 2781 | ofpraw_decode_partial(&raw, reply->data, reply->size); |
2e1ae200 | 2782 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
0fb88c18 | 2783 | const struct ofp_header *oh = reply->data; |
22a86f18 SH |
2784 | struct ofp11_flow_stats *ofs; |
2785 | ||
2786 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
81a76618 | 2787 | oxm_put_match(reply, &fs->match); |
22a86f18 SH |
2788 | ofpacts_put_openflow11_instructions(fs->ofpacts, fs->ofpacts_len, |
2789 | reply); | |
2790 | ||
2791 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
2792 | ofs->length = htons(reply->size - start_ofs); | |
2793 | ofs->table_id = fs->table_id; | |
2794 | ofs->pad = 0; | |
2795 | ofs->duration_sec = htonl(fs->duration_sec); | |
2796 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2797 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
2798 | ofs->idle_timeout = htons(fs->idle_timeout); |
2799 | ofs->hard_timeout = htons(fs->hard_timeout); | |
0fb88c18 BP |
2800 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2801 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, oh->version); | |
2802 | } else { | |
2803 | ofs->flags = 0; | |
2804 | } | |
22a86f18 SH |
2805 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
2806 | ofs->cookie = fs->cookie; | |
2807 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
2808 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
2809 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 2810 | struct ofp10_flow_stats *ofs; |
349adfb2 | 2811 | |
1a59dc2c BP |
2812 | ofpbuf_put_uninit(reply, sizeof *ofs); |
2813 | ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply); | |
2814 | ||
2815 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
2816 | ofs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2817 | ofs->table_id = fs->table_id; |
2818 | ofs->pad = 0; | |
81a76618 | 2819 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
2820 | ofs->duration_sec = htonl(fs->duration_sec); |
2821 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2822 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
2823 | ofs->idle_timeout = htons(fs->idle_timeout); |
2824 | ofs->hard_timeout = htons(fs->hard_timeout); | |
2825 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
2826 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
2827 | put_32aligned_be64(&ofs->packet_count, |
2828 | htonll(unknown_to_zero(fs->packet_count))); | |
2829 | put_32aligned_be64(&ofs->byte_count, | |
2830 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 2831 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 2832 | struct nx_flow_stats *nfs; |
1a59dc2c | 2833 | int match_len; |
349adfb2 | 2834 | |
1a59dc2c | 2835 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 2836 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
1a59dc2c BP |
2837 | ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply); |
2838 | ||
2839 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); | |
2840 | nfs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2841 | nfs->table_id = fs->table_id; |
2842 | nfs->pad = 0; | |
2843 | nfs->duration_sec = htonl(fs->duration_sec); | |
2844 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2845 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
2846 | nfs->idle_timeout = htons(fs->idle_timeout); |
2847 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
2848 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
2849 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
2850 | : UINT16_MAX); | |
2851 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
2852 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
2853 | : UINT16_MAX); | |
1a59dc2c | 2854 | nfs->match_len = htons(match_len); |
349adfb2 BP |
2855 | nfs->cookie = fs->cookie; |
2856 | nfs->packet_count = htonll(fs->packet_count); | |
2857 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 BP |
2858 | } else { |
2859 | NOT_REACHED(); | |
2860 | } | |
f25d0cf3 | 2861 | |
982697a4 | 2862 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
2863 | } |
2864 | ||
76c93b22 | 2865 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 2866 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
2867 | struct ofpbuf * |
2868 | ofputil_encode_aggregate_stats_reply( | |
2869 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 2870 | const struct ofp_header *request) |
76c93b22 | 2871 | { |
a814ba0f BP |
2872 | struct ofp_aggregate_stats_reply *asr; |
2873 | uint64_t packet_count; | |
2874 | uint64_t byte_count; | |
76c93b22 | 2875 | struct ofpbuf *msg; |
982697a4 | 2876 | enum ofpraw raw; |
76c93b22 | 2877 | |
982697a4 | 2878 | ofpraw_decode(&raw, request); |
617da9cd | 2879 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
2880 | packet_count = unknown_to_zero(stats->packet_count); |
2881 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 2882 | } else { |
a814ba0f BP |
2883 | packet_count = stats->packet_count; |
2884 | byte_count = stats->byte_count; | |
76c93b22 BP |
2885 | } |
2886 | ||
a814ba0f BP |
2887 | msg = ofpraw_alloc_stats_reply(request, 0); |
2888 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
2889 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
2890 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
2891 | asr->flow_count = htonl(stats->flow_count); | |
2892 | ||
76c93b22 BP |
2893 | return msg; |
2894 | } | |
2895 | ||
982697a4 BP |
2896 | enum ofperr |
2897 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
2898 | const struct ofp_header *reply) | |
2899 | { | |
a814ba0f | 2900 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 2901 | struct ofpbuf msg; |
982697a4 BP |
2902 | |
2903 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
2904 | ofpraw_pull_assert(&msg); |
2905 | ||
2906 | asr = msg.l3; | |
2907 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); | |
2908 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
2909 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
2910 | |
2911 | return 0; | |
2912 | } | |
2913 | ||
b78f6b77 BP |
2914 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
2915 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
2916 | * an OpenFlow error code. */ | |
90bf1e07 | 2917 | enum ofperr |
9b045a0c | 2918 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 2919 | const struct ofp_header *oh) |
9b045a0c | 2920 | { |
982697a4 BP |
2921 | enum ofpraw raw; |
2922 | struct ofpbuf b; | |
9b045a0c | 2923 | |
982697a4 BP |
2924 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2925 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
2926 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
2927 | const struct ofp12_flow_removed *ofr; | |
2928 | enum ofperr error; | |
2929 | ||
2930 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
2931 | ||
81a76618 | 2932 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
2933 | if (error) { |
2934 | return error; | |
2935 | } | |
2936 | ||
81a76618 | 2937 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
2938 | fr->cookie = ofr->cookie; |
2939 | fr->reason = ofr->reason; | |
95216219 | 2940 | fr->table_id = ofr->table_id; |
eefbf181 SH |
2941 | fr->duration_sec = ntohl(ofr->duration_sec); |
2942 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
2943 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
2944 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
2945 | fr->packet_count = ntohll(ofr->packet_count); | |
2946 | fr->byte_count = ntohll(ofr->byte_count); | |
2947 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 2948 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 2949 | |
982697a4 BP |
2950 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
2951 | ||
81a76618 BP |
2952 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
2953 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
2954 | fr->cookie = ofr->cookie; |
2955 | fr->reason = ofr->reason; | |
95216219 | 2956 | fr->table_id = 255; |
9b045a0c BP |
2957 | fr->duration_sec = ntohl(ofr->duration_sec); |
2958 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
2959 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 2960 | fr->hard_timeout = 0; |
9b045a0c BP |
2961 | fr->packet_count = ntohll(ofr->packet_count); |
2962 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 2963 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 2964 | struct nx_flow_removed *nfr; |
c2725b60 | 2965 | enum ofperr error; |
9b045a0c | 2966 | |
9b045a0c | 2967 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
2968 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
2969 | NULL, NULL); | |
9b045a0c BP |
2970 | if (error) { |
2971 | return error; | |
2972 | } | |
2973 | if (b.size) { | |
90bf1e07 | 2974 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
2975 | } |
2976 | ||
81a76618 | 2977 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
2978 | fr->cookie = nfr->cookie; |
2979 | fr->reason = nfr->reason; | |
745bfd5e | 2980 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
2981 | fr->duration_sec = ntohl(nfr->duration_sec); |
2982 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
2983 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 2984 | fr->hard_timeout = 0; |
9b045a0c BP |
2985 | fr->packet_count = ntohll(nfr->packet_count); |
2986 | fr->byte_count = ntohll(nfr->byte_count); | |
2987 | } else { | |
2988 | NOT_REACHED(); | |
2989 | } | |
2990 | ||
2991 | return 0; | |
2992 | } | |
2993 | ||
588cd7b5 | 2994 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 2995 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
2996 | * message. */ |
2997 | struct ofpbuf * | |
2998 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 2999 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3000 | { |
3001 | struct ofpbuf *msg; | |
3002 | ||
27527aa0 | 3003 | switch (protocol) { |
75fa58f8 | 3004 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
3005 | case OFPUTIL_P_OF12_OXM: |
3006 | case OFPUTIL_P_OF13_OXM: { | |
83974732 SH |
3007 | struct ofp12_flow_removed *ofr; |
3008 | ||
3009 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3010 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3011 | htonl(0), |
3012 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3013 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3014 | ofr->cookie = fr->cookie; | |
81a76618 | 3015 | ofr->priority = htons(fr->priority); |
83974732 | 3016 | ofr->reason = fr->reason; |
95216219 | 3017 | ofr->table_id = fr->table_id; |
83974732 SH |
3018 | ofr->duration_sec = htonl(fr->duration_sec); |
3019 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3020 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3021 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3022 | ofr->packet_count = htonll(fr->packet_count); |
3023 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3024 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3025 | break; |
3026 | } | |
3027 | ||
85813857 BP |
3028 | case OFPUTIL_P_OF10_STD: |
3029 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3030 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3031 | |
982697a4 BP |
3032 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3033 | htonl(0), 0); | |
3034 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3035 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3036 | ofr->cookie = fr->cookie; |
81a76618 | 3037 | ofr->priority = htons(fr->priority); |
588cd7b5 BP |
3038 | ofr->reason = fr->reason; |
3039 | ofr->duration_sec = htonl(fr->duration_sec); | |
3040 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3041 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3042 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3043 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3044 | break; |
3045 | } | |
3046 | ||
85813857 BP |
3047 | case OFPUTIL_P_OF10_NXM: |
3048 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3049 | struct nx_flow_removed *nfr; |
3050 | int match_len; | |
3051 | ||
982697a4 BP |
3052 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3053 | htonl(0), NXM_TYPICAL_LEN); | |
3054 | nfr = ofpbuf_put_zeros(msg, sizeof *nfr); | |
81a76618 | 3055 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3056 | |
982697a4 | 3057 | nfr = msg->l3; |
588cd7b5 | 3058 | nfr->cookie = fr->cookie; |
81a76618 | 3059 | nfr->priority = htons(fr->priority); |
588cd7b5 | 3060 | nfr->reason = fr->reason; |
745bfd5e | 3061 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3062 | nfr->duration_sec = htonl(fr->duration_sec); |
3063 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3064 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3065 | nfr->match_len = htons(match_len); | |
3066 | nfr->packet_count = htonll(fr->packet_count); | |
3067 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3068 | break; |
3069 | } | |
3070 | ||
3071 | default: | |
588cd7b5 BP |
3072 | NOT_REACHED(); |
3073 | } | |
3074 | ||
3075 | return msg; | |
3076 | } | |
3077 | ||
7cfb9651 SH |
3078 | static void |
3079 | ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin, | |
81a76618 | 3080 | struct match *match, struct ofpbuf *b) |
7cfb9651 SH |
3081 | { |
3082 | pin->packet = b->data; | |
3083 | pin->packet_len = b->size; | |
3084 | ||
4e022ec0 | 3085 | pin->fmd.in_port = match->flow.in_port.ofp_port; |
296e07ac | 3086 | pin->fmd.tun_id = match->flow.tunnel.tun_id; |
0ad90c84 JR |
3087 | pin->fmd.tun_src = match->flow.tunnel.ip_src; |
3088 | pin->fmd.tun_dst = match->flow.tunnel.ip_dst; | |
81a76618 BP |
3089 | pin->fmd.metadata = match->flow.metadata; |
3090 | memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs); | |
ac923e91 | 3091 | pin->fmd.pkt_mark = match->flow.pkt_mark; |
7cfb9651 SH |
3092 | } |
3093 | ||
f7cc6bd8 | 3094 | enum ofperr |
65120a8a EJ |
3095 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3096 | const struct ofp_header *oh) | |
3097 | { | |
982697a4 BP |
3098 | enum ofpraw raw; |
3099 | struct ofpbuf b; | |
65120a8a | 3100 | |
65120a8a | 3101 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3102 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3103 | |
982697a4 BP |
3104 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3105 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3106 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3107 | const struct ofp13_packet_in *opi; | |
81a76618 | 3108 | struct match match; |
7cfb9651 | 3109 | int error; |
2e1ae200 JR |
3110 | size_t packet_in_size; |
3111 | ||
3112 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3113 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3114 | } else { | |
3115 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3116 | } | |
7cfb9651 | 3117 | |
2e1ae200 | 3118 | opi = ofpbuf_pull(&b, packet_in_size); |
81a76618 | 3119 | error = oxm_pull_match_loose(&b, &match); |
7cfb9651 SH |
3120 | if (error) { |
3121 | return error; | |
3122 | } | |
3123 | ||
3124 | if (!ofpbuf_try_pull(&b, 2)) { | |
3125 | return OFPERR_OFPBRC_BAD_LEN; | |
3126 | } | |
3127 | ||
2e1ae200 JR |
3128 | pin->reason = opi->pi.reason; |
3129 | pin->table_id = opi->pi.table_id; | |
3130 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3131 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3132 | |
2e1ae200 JR |
3133 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3134 | pin->cookie = opi->cookie; | |
3135 | } | |
7cfb9651 | 3136 | |
81a76618 | 3137 | ofputil_decode_packet_in_finish(pin, &match, &b); |
7cfb9651 | 3138 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3139 | const struct ofp10_packet_in *opi; |
982697a4 | 3140 | |
31a9e63f | 3141 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3142 | |
3143 | pin->packet = opi->data; | |
982697a4 | 3144 | pin->packet_len = b.size; |
65120a8a | 3145 | |
4e022ec0 | 3146 | pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port)); |
65120a8a EJ |
3147 | pin->reason = opi->reason; |
3148 | pin->buffer_id = ntohl(opi->buffer_id); | |
3149 | pin->total_len = ntohs(opi->total_len); | |
982697a4 | 3150 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3151 | const struct nx_packet_in *npi; |
81a76618 | 3152 | struct match match; |
54834960 EJ |
3153 | int error; |
3154 | ||
54834960 | 3155 | npi = ofpbuf_pull(&b, sizeof *npi); |
81a76618 | 3156 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL, |
b5ae8913 | 3157 | NULL); |
54834960 EJ |
3158 | if (error) { |
3159 | return error; | |
3160 | } | |
3161 | ||
3162 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3163 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3164 | } |
3165 | ||
54834960 EJ |
3166 | pin->reason = npi->reason; |
3167 | pin->table_id = npi->table_id; | |
3168 | pin->cookie = npi->cookie; | |
3169 | ||
54834960 EJ |
3170 | pin->buffer_id = ntohl(npi->buffer_id); |
3171 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3172 | |
81a76618 | 3173 | ofputil_decode_packet_in_finish(pin, &match, &b); |
65120a8a EJ |
3174 | } else { |
3175 | NOT_REACHED(); | |
3176 | } | |
3177 | ||
3178 | return 0; | |
3179 | } | |
3180 | ||
d94240ec | 3181 | static void |
81a76618 BP |
3182 | ofputil_packet_in_to_match(const struct ofputil_packet_in *pin, |
3183 | struct match *match) | |
d94240ec SH |
3184 | { |
3185 | int i; | |
3186 | ||
81a76618 | 3187 | match_init_catchall(match); |
42edbe39 | 3188 | if (pin->fmd.tun_id != htonll(0)) { |
81a76618 | 3189 | match_set_tun_id(match, pin->fmd.tun_id); |
42edbe39 | 3190 | } |
0ad90c84 JR |
3191 | if (pin->fmd.tun_src != htonl(0)) { |
3192 | match_set_tun_src(match, pin->fmd.tun_src); | |
3193 | } | |
3194 | if (pin->fmd.tun_dst != htonl(0)) { | |
3195 | match_set_tun_dst(match, pin->fmd.tun_dst); | |
3196 | } | |
42edbe39 | 3197 | if (pin->fmd.metadata != htonll(0)) { |
81a76618 | 3198 | match_set_metadata(match, pin->fmd.metadata); |
42edbe39 | 3199 | } |
d94240ec SH |
3200 | |
3201 | for (i = 0; i < FLOW_N_REGS; i++) { | |
42edbe39 | 3202 | if (pin->fmd.regs[i]) { |
81a76618 | 3203 | match_set_reg(match, i, pin->fmd.regs[i]); |
42edbe39 | 3204 | } |
d94240ec SH |
3205 | } |
3206 | ||
ac923e91 JG |
3207 | if (pin->fmd.pkt_mark != 0) { |
3208 | match_set_pkt_mark(match, pin->fmd.pkt_mark); | |
3209 | } | |
3210 | ||
81a76618 | 3211 | match_set_in_port(match, pin->fmd.in_port); |
d94240ec SH |
3212 | } |
3213 | ||
54834960 EJ |
3214 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3215 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3216 | struct ofpbuf * |
54834960 | 3217 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3218 | enum ofputil_protocol protocol, |
54834960 | 3219 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3220 | { |
54834960 | 3221 | struct ofpbuf *packet; |
ebb57021 BP |
3222 | |
3223 | /* Add OFPT_PACKET_IN. */ | |
2e1ae200 JR |
3224 | if (protocol == OFPUTIL_P_OF13_OXM || protocol == OFPUTIL_P_OF12_OXM) { |
3225 | struct ofp13_packet_in *opi; | |
81a76618 | 3226 | struct match match; |
2e1ae200 JR |
3227 | enum ofpraw packet_in_raw; |
3228 | enum ofp_version packet_in_version; | |
3229 | size_t packet_in_size; | |
3230 | ||
3231 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3232 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3233 | packet_in_version = OFP12_VERSION; | |
3234 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3235 | } else { | |
3236 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
3237 | packet_in_version = OFP13_VERSION; | |
3238 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3239 | } | |
d94240ec | 3240 | |
81a76618 | 3241 | ofputil_packet_in_to_match(pin, &match); |
d94240ec SH |
3242 | |
3243 | /* The final argument is just an estimate of the space required. */ | |
2e1ae200 | 3244 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, |
d94240ec | 3245 | htonl(0), (sizeof(struct flow_metadata) * 2 |
d38a3c7b | 3246 | + 2 + pin->packet_len)); |
2e1ae200 | 3247 | ofpbuf_put_zeros(packet, packet_in_size); |
81a76618 | 3248 | oxm_put_match(packet, &match); |
d94240ec | 3249 | ofpbuf_put_zeros(packet, 2); |
d38a3c7b | 3250 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
d94240ec SH |
3251 | |
3252 | opi = packet->l3; | |
2e1ae200 JR |
3253 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3254 | opi->pi.total_len = htons(pin->total_len); | |
3255 | opi->pi.reason = pin->reason; | |
3256 | opi->pi.table_id = pin->table_id; | |
3257 | if (protocol == OFPUTIL_P_OF13_OXM) { | |
3258 | opi->cookie = pin->cookie; | |
3259 | } | |
3260 | } else if (packet_in_format == NXPIF_OPENFLOW10) { | |
31a9e63f | 3261 | struct ofp10_packet_in *opi; |
54834960 | 3262 | |
982697a4 | 3263 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
d38a3c7b | 3264 | htonl(0), pin->packet_len); |
31a9e63f | 3265 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); |
54834960 | 3266 | opi->total_len = htons(pin->total_len); |
4e022ec0 | 3267 | opi->in_port = htons(ofp_to_u16(pin->fmd.in_port)); |
54834960 EJ |
3268 | opi->reason = pin->reason; |
3269 | opi->buffer_id = htonl(pin->buffer_id); | |
3270 | ||
d38a3c7b | 3271 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
54834960 | 3272 | } else if (packet_in_format == NXPIF_NXM) { |
73dbf4ab | 3273 | struct nx_packet_in *npi; |
81a76618 | 3274 | struct match match; |
54834960 | 3275 | size_t match_len; |
54834960 | 3276 | |
81a76618 | 3277 | ofputil_packet_in_to_match(pin, &match); |
54834960 | 3278 | |
982697a4 BP |
3279 | /* The final argument is just an estimate of the space required. */ |
3280 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
3281 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
d38a3c7b | 3282 | + 2 + pin->packet_len)); |
54834960 | 3283 | ofpbuf_put_zeros(packet, sizeof *npi); |
81a76618 | 3284 | match_len = nx_put_match(packet, &match, 0, 0); |
54834960 | 3285 | ofpbuf_put_zeros(packet, 2); |
d38a3c7b | 3286 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
54834960 | 3287 | |
982697a4 | 3288 | npi = packet->l3; |
54834960 EJ |
3289 | npi->buffer_id = htonl(pin->buffer_id); |
3290 | npi->total_len = htons(pin->total_len); | |
3291 | npi->reason = pin->reason; | |
3292 | npi->table_id = pin->table_id; | |
3293 | npi->cookie = pin->cookie; | |
3294 | npi->match_len = htons(match_len); | |
3295 | } else { | |
3296 | NOT_REACHED(); | |
3297 | } | |
982697a4 | 3298 | ofpmsg_update_length(packet); |
54834960 EJ |
3299 | |
3300 | return packet; | |
ebb57021 BP |
3301 | } |
3302 | ||
5014a89d BP |
3303 | /* Returns a string form of 'reason'. The return value is either a statically |
3304 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3305 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3306 | const char * |
5014a89d BP |
3307 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3308 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3309 | { |
7c1a76a4 BP |
3310 | switch (reason) { |
3311 | case OFPR_NO_MATCH: | |
3312 | return "no_match"; | |
3313 | case OFPR_ACTION: | |
3314 | return "action"; | |
3315 | case OFPR_INVALID_TTL: | |
3316 | return "invalid_ttl"; | |
3317 | ||
3318 | case OFPR_N_REASONS: | |
3319 | default: | |
5014a89d BP |
3320 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3321 | return reasonbuf; | |
7c1a76a4 BP |
3322 | } |
3323 | } | |
3324 | ||
3325 | bool | |
3326 | ofputil_packet_in_reason_from_string(const char *s, | |
3327 | enum ofp_packet_in_reason *reason) | |
3328 | { | |
3329 | int i; | |
3330 | ||
3331 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3332 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3333 | const char *reason_s; | |
3334 | ||
3335 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3336 | sizeof reasonbuf); | |
3337 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3338 | *reason = i; |
3339 | return true; | |
3340 | } | |
3341 | } | |
3342 | return false; | |
3343 | } | |
3344 | ||
f25d0cf3 BP |
3345 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3346 | * 'po'. | |
3347 | * | |
3348 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3349 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3350 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3351 | * | |
3352 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3353 | enum ofperr |
3354 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3355 | const struct ofp_header *oh, |
f25d0cf3 | 3356 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3357 | { |
982697a4 | 3358 | enum ofpraw raw; |
c6a93eb7 BP |
3359 | struct ofpbuf b; |
3360 | ||
982697a4 BP |
3361 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3362 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3363 | |
eb5ee596 SH |
3364 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3365 | enum ofperr error; | |
3366 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3367 | ||
3368 | po->buffer_id = ntohl(opo->buffer_id); | |
3369 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3370 | if (error) { | |
3371 | return error; | |
3372 | } | |
3373 | ||
a7a2d006 JS |
3374 | error = ofpacts_pull_openflow11_actions(&b, oh->version, |
3375 | ntohs(opo->actions_len), | |
eb5ee596 SH |
3376 | ofpacts); |
3377 | if (error) { | |
3378 | return error; | |
3379 | } | |
eb5ee596 | 3380 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3381 | enum ofperr error; |
31a9e63f | 3382 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3383 | |
3384 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3385 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd SH |
3386 | |
3387 | error = ofpacts_pull_openflow10(&b, ntohs(opo->actions_len), ofpacts); | |
3388 | if (error) { | |
3389 | return error; | |
3390 | } | |
3391 | } else { | |
3392 | NOT_REACHED(); | |
3393 | } | |
3394 | ||
4e022ec0 AW |
3395 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3396 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3397 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3398 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3399 | po->in_port); | |
2e1bfcb6 | 3400 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3401 | } |
3402 | ||
f25d0cf3 BP |
3403 | po->ofpacts = ofpacts->data; |
3404 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3405 | |
3406 | if (po->buffer_id == UINT32_MAX) { | |
3407 | po->packet = b.data; | |
3408 | po->packet_len = b.size; | |
3409 | } else { | |
3410 | po->packet = NULL; | |
3411 | po->packet_len = 0; | |
3412 | } | |
3413 | ||
3414 | return 0; | |
3415 | } | |
6c038611 BP |
3416 | \f |
3417 | /* ofputil_phy_port */ | |
3418 | ||
3419 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3420 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3421 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3422 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3423 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3424 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3425 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3426 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3427 | ||
3428 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3429 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3430 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3431 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3432 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3433 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3434 | |
9e1fd49b BP |
3435 | static enum netdev_features |
3436 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3437 | { |
3438 | uint32_t ofp10 = ntohl(ofp10_); | |
3439 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3440 | } | |
3441 | ||
9e1fd49b BP |
3442 | static ovs_be32 |
3443 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3444 | { |
3445 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3446 | } | |
c6a93eb7 | 3447 | |
9e1fd49b BP |
3448 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3449 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3450 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3451 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3452 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3453 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3454 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3455 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3456 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3457 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3458 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3459 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3460 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3461 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3462 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3463 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3464 | ||
3465 | static enum netdev_features | |
3466 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3467 | { | |
3468 | return ntohl(ofp11) & 0xffff; | |
3469 | } | |
3470 | ||
3471 | static ovs_be32 | |
3472 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3473 | { | |
3474 | return htonl(features & 0xffff); | |
3475 | } | |
3476 | ||
3477 | static enum ofperr | |
3478 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3479 | const struct ofp10_phy_port *opp) | |
3480 | { | |
3481 | memset(pp, 0, sizeof *pp); | |
3482 | ||
4e022ec0 | 3483 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3484 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3485 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3486 | ||
3487 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3488 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3489 | ||
3490 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3491 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3492 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3493 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3494 | ||
d02a5f8e BP |
3495 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3496 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3497 | |
3498 | return 0; | |
3499 | } | |
3500 | ||
3501 | static enum ofperr | |
3502 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3503 | const struct ofp11_port *op) | |
3504 | { | |
3505 | enum ofperr error; | |
3506 | ||
3507 | memset(pp, 0, sizeof *pp); | |
3508 | ||
3509 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3510 | if (error) { | |
3511 | return error; | |
3512 | } | |
3513 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3514 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3515 | ||
3516 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3517 | pp->state = ntohl(op->state) & OFPPC11_ALL; | |
3518 | ||
3519 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3520 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3521 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3522 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3523 | ||
3524 | pp->curr_speed = ntohl(op->curr_speed); | |
3525 | pp->max_speed = ntohl(op->max_speed); | |
3526 | ||
3527 | return 0; | |
3528 | } | |
3529 | ||
5b5a3a67 | 3530 | static size_t |
2e3fa633 SH |
3531 | ofputil_get_phy_port_size(enum ofp_version ofp_version) |
3532 | { | |
3533 | switch (ofp_version) { | |
3534 | case OFP10_VERSION: | |
3535 | return sizeof(struct ofp10_phy_port); | |
3536 | case OFP11_VERSION: | |
3537 | case OFP12_VERSION: | |
2e1ae200 | 3538 | case OFP13_VERSION: |
2e3fa633 SH |
3539 | return sizeof(struct ofp11_port); |
3540 | default: | |
3541 | NOT_REACHED(); | |
3542 | } | |
5b5a3a67 JP |
3543 | } |
3544 | ||
9e1fd49b BP |
3545 | static void |
3546 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3547 | struct ofp10_phy_port *opp) | |
3548 | { | |
3549 | memset(opp, 0, sizeof *opp); | |
3550 | ||
4e022ec0 | 3551 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3552 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3553 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3554 | ||
3555 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3556 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3557 | ||
3558 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3559 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3560 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3561 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3562 | } | |
3563 | ||
3564 | static void | |
3565 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3566 | struct ofp11_port *op) | |
3567 | { | |
3568 | memset(op, 0, sizeof *op); | |
3569 | ||
3570 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3571 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3572 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3573 | ||
3574 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3575 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3576 | ||
3577 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3578 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3579 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3580 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3581 | ||
3582 | op->curr_speed = htonl(pp->curr_speed); | |
3583 | op->max_speed = htonl(pp->max_speed); | |
3584 | } | |
3585 | ||
3586 | static void | |
2e3fa633 SH |
3587 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3588 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3589 | { |
2e3fa633 SH |
3590 | switch (ofp_version) { |
3591 | case OFP10_VERSION: { | |
9e1fd49b BP |
3592 | struct ofp10_phy_port *opp; |
3593 | if (b->size + sizeof *opp <= UINT16_MAX) { | |
3594 | opp = ofpbuf_put_uninit(b, sizeof *opp); | |
3595 | ofputil_encode_ofp10_phy_port(pp, opp); | |
3596 | } | |
2e3fa633 SH |
3597 | break; |
3598 | } | |
3599 | ||
3600 | case OFP11_VERSION: | |
2e1ae200 JR |
3601 | case OFP12_VERSION: |
3602 | case OFP13_VERSION: { | |
9e1fd49b BP |
3603 | struct ofp11_port *op; |
3604 | if (b->size + sizeof *op <= UINT16_MAX) { | |
3605 | op = ofpbuf_put_uninit(b, sizeof *op); | |
3606 | ofputil_encode_ofp11_port(pp, op); | |
3607 | } | |
2e3fa633 SH |
3608 | break; |
3609 | } | |
3610 | ||
3611 | default: | |
3612 | NOT_REACHED(); | |
9e1fd49b BP |
3613 | } |
3614 | } | |
2be393ed JP |
3615 | |
3616 | void | |
2e3fa633 | 3617 | ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version, |
2be393ed JP |
3618 | const struct ofputil_phy_port *pp, |
3619 | struct list *replies) | |
3620 | { | |
2e3fa633 SH |
3621 | switch (ofp_version) { |
3622 | case OFP10_VERSION: { | |
2be393ed JP |
3623 | struct ofp10_phy_port *opp; |
3624 | ||
982697a4 | 3625 | opp = ofpmp_append(replies, sizeof *opp); |
2be393ed | 3626 | ofputil_encode_ofp10_phy_port(pp, opp); |
2e3fa633 SH |
3627 | break; |
3628 | } | |
3629 | ||
3630 | case OFP11_VERSION: | |
2e1ae200 JR |
3631 | case OFP12_VERSION: |
3632 | case OFP13_VERSION: { | |
2be393ed JP |
3633 | struct ofp11_port *op; |
3634 | ||
982697a4 | 3635 | op = ofpmp_append(replies, sizeof *op); |
2be393ed | 3636 | ofputil_encode_ofp11_port(pp, op); |
2e3fa633 SH |
3637 | break; |
3638 | } | |
3639 | ||
3640 | default: | |
3641 | NOT_REACHED(); | |
2be393ed JP |
3642 | } |
3643 | } | |
9e1fd49b BP |
3644 | \f |
3645 | /* ofputil_switch_features */ | |
3646 | ||
3647 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 3648 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
3649 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
3650 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
3651 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
3652 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
3653 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
3654 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
3655 | ||
3656 | struct ofputil_action_bit_translation { | |
3657 | enum ofputil_action_bitmap ofputil_bit; | |
3658 | int of_bit; | |
3659 | }; | |
3660 | ||
3661 | static const struct ofputil_action_bit_translation of10_action_bits[] = { | |
3662 | { OFPUTIL_A_OUTPUT, OFPAT10_OUTPUT }, | |
3663 | { OFPUTIL_A_SET_VLAN_VID, OFPAT10_SET_VLAN_VID }, | |
3664 | { OFPUTIL_A_SET_VLAN_PCP, OFPAT10_SET_VLAN_PCP }, | |
3665 | { OFPUTIL_A_STRIP_VLAN, OFPAT10_STRIP_VLAN }, | |
3666 | { OFPUTIL_A_SET_DL_SRC, OFPAT10_SET_DL_SRC }, | |
3667 | { OFPUTIL_A_SET_DL_DST, OFPAT10_SET_DL_DST }, | |
3668 | { OFPUTIL_A_SET_NW_SRC, OFPAT10_SET_NW_SRC }, | |
3669 | { OFPUTIL_A_SET_NW_DST, OFPAT10_SET_NW_DST }, | |
3670 | { OFPUTIL_A_SET_NW_TOS, OFPAT10_SET_NW_TOS }, | |
3671 | { OFPUTIL_A_SET_TP_SRC, OFPAT10_SET_TP_SRC }, | |
3672 | { OFPUTIL_A_SET_TP_DST, OFPAT10_SET_TP_DST }, | |
3673 | { OFPUTIL_A_ENQUEUE, OFPAT10_ENQUEUE }, | |
3674 | { 0, 0 }, | |
3675 | }; | |
3676 | ||
9e1fd49b BP |
3677 | static enum ofputil_action_bitmap |
3678 | decode_action_bits(ovs_be32 of_actions, | |
3679 | const struct ofputil_action_bit_translation *x) | |
3680 | { | |
3681 | enum ofputil_action_bitmap ofputil_actions; | |
3682 | ||
3683 | ofputil_actions = 0; | |
3684 | for (; x->ofputil_bit; x++) { | |
3685 | if (of_actions & htonl(1u << x->of_bit)) { | |
3686 | ofputil_actions |= x->ofputil_bit; | |
3687 | } | |
3688 | } | |
3689 | return ofputil_actions; | |
3690 | } | |
3691 | ||
60202987 SH |
3692 | static uint32_t |
3693 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
3694 | { | |
3695 | /* Handle capabilities whose bit is unique for all Open Flow versions */ | |
3696 | switch (ofp_version) { | |
3697 | case OFP10_VERSION: | |
3698 | case OFP11_VERSION: | |
3699 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
3700 | case OFP12_VERSION: | |
2e1ae200 | 3701 | case OFP13_VERSION: |
60202987 SH |
3702 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
3703 | default: | |
3704 | /* Caller needs to check osf->header.version itself */ | |
3705 | return 0; | |
3706 | } | |
3707 | } | |
3708 | ||
9e1fd49b BP |
3709 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
3710 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
3711 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 3712 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
3713 | * OFPERR_* value. */ |
3714 | enum ofperr | |
982697a4 | 3715 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
3716 | struct ofputil_switch_features *features, |
3717 | struct ofpbuf *b) | |
3718 | { | |
982697a4 BP |
3719 | const struct ofp_switch_features *osf; |
3720 | enum ofpraw raw; | |
3721 | ||
3722 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
3723 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 3724 | |
982697a4 | 3725 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
3726 | features->datapath_id = ntohll(osf->datapath_id); |
3727 | features->n_buffers = ntohl(osf->n_buffers); | |
3728 | features->n_tables = osf->n_tables; | |
2e1ae200 | 3729 | features->auxiliary_id = 0; |
9e1fd49b | 3730 | |
60202987 SH |
3731 | features->capabilities = ntohl(osf->capabilities) & |
3732 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 3733 | |
982697a4 | 3734 | if (b->size % ofputil_get_phy_port_size(oh->version)) { |
5b5a3a67 JP |
3735 | return OFPERR_OFPBRC_BAD_LEN; |
3736 | } | |
3737 | ||
982697a4 | 3738 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
3739 | if (osf->capabilities & htonl(OFPC10_STP)) { |
3740 | features->capabilities |= OFPUTIL_C_STP; | |
3741 | } | |
3742 | features->actions = decode_action_bits(osf->actions, of10_action_bits); | |
2e1ae200 JR |
3743 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
3744 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
3745 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
3746 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
3747 | } | |
34b28fc7 | 3748 | features->actions = 0; |
2e1ae200 JR |
3749 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
3750 | features->auxiliary_id = osf->auxiliary_id; | |
3751 | } | |
9e1fd49b BP |
3752 | } else { |
3753 | return OFPERR_OFPBRC_BAD_VERSION; | |
3754 | } | |
3755 | ||
3756 | return 0; | |
3757 | } | |
3758 | ||
982697a4 | 3759 | /* Returns true if the maximum number of ports are in 'oh'. */ |
347b7ac4 | 3760 | static bool |
982697a4 | 3761 | max_ports_in_features(const struct ofp_header *oh) |
347b7ac4 | 3762 | { |
982697a4 BP |
3763 | size_t pp_size = ofputil_get_phy_port_size(oh->version); |
3764 | return ntohs(oh->length) + pp_size > UINT16_MAX; | |
347b7ac4 JP |
3765 | } |
3766 | ||
3767 | /* Given a buffer 'b' that contains a Features Reply message, checks if | |
3768 | * it contains the maximum number of ports that will fit. If so, it | |
3769 | * returns true and removes the ports from the message. The caller | |
3770 | * should then send an OFPST_PORT_DESC stats request to get the ports, | |
3771 | * since the switch may have more ports than could be represented in the | |
3772 | * Features Reply. Otherwise, returns false. | |
3773 | */ | |
3774 | bool | |
3775 | ofputil_switch_features_ports_trunc(struct ofpbuf *b) | |
3776 | { | |
982697a4 | 3777 | struct ofp_header *oh = b->data; |
347b7ac4 | 3778 | |
982697a4 | 3779 | if (max_ports_in_features(oh)) { |
347b7ac4 | 3780 | /* Remove all the ports. */ |
982697a4 BP |
3781 | b->size = (sizeof(struct ofp_header) |
3782 | + sizeof(struct ofp_switch_features)); | |
3783 | ofpmsg_update_length(b); | |
347b7ac4 JP |
3784 | |
3785 | return true; | |
3786 | } | |
3787 | ||
3788 | return false; | |
3789 | } | |
3790 | ||
9e1fd49b BP |
3791 | static ovs_be32 |
3792 | encode_action_bits(enum ofputil_action_bitmap ofputil_actions, | |
3793 | const struct ofputil_action_bit_translation *x) | |
3794 | { | |
3795 | uint32_t of_actions; | |
3796 | ||
3797 | of_actions = 0; | |
3798 | for (; x->ofputil_bit; x++) { | |
3799 | if (ofputil_actions & x->ofputil_bit) { | |
3800 | of_actions |= 1 << x->of_bit; | |
3801 | } | |
3802 | } | |
3803 | return htonl(of_actions); | |
3804 | } | |
3805 | ||
3806 | /* Returns a buffer owned by the caller that encodes 'features' in the format | |
3807 | * required by 'protocol' with the given 'xid'. The caller should append port | |
3808 | * information to the buffer with subsequent calls to | |
3809 | * ofputil_put_switch_features_port(). */ | |
3810 | struct ofpbuf * | |
3811 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
3812 | enum ofputil_protocol protocol, ovs_be32 xid) | |
3813 | { | |
3814 | struct ofp_switch_features *osf; | |
3815 | struct ofpbuf *b; | |
2e3fa633 SH |
3816 | enum ofp_version version; |
3817 | enum ofpraw raw; | |
982697a4 BP |
3818 | |
3819 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
3820 | switch (version) { |
3821 | case OFP10_VERSION: | |
3822 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
3823 | break; | |
3824 | case OFP11_VERSION: | |
3825 | case OFP12_VERSION: | |
3826 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
3827 | break; | |
2e1ae200 JR |
3828 | case OFP13_VERSION: |
3829 | raw = OFPRAW_OFPT13_FEATURES_REPLY; | |
3830 | break; | |
2e3fa633 SH |
3831 | default: |
3832 | NOT_REACHED(); | |
3833 | } | |
3834 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 3835 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
3836 | osf->datapath_id = htonll(features->datapath_id); |
3837 | osf->n_buffers = htonl(features->n_buffers); | |
3838 | osf->n_tables = features->n_tables; | |
3839 | ||
3840 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
3841 | osf->capabilities = htonl(features->capabilities & |
3842 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
3843 | switch (version) { |
3844 | case OFP10_VERSION: | |
9e1fd49b BP |
3845 | if (features->capabilities & OFPUTIL_C_STP) { |
3846 | osf->capabilities |= htonl(OFPC10_STP); | |
3847 | } | |
3848 | osf->actions = encode_action_bits(features->actions, of10_action_bits); | |
2e3fa633 | 3849 | break; |
2e1ae200 JR |
3850 | case OFP13_VERSION: |
3851 | osf->auxiliary_id = features->auxiliary_id; | |
3852 | /* fall through */ | |
2e3fa633 SH |
3853 | case OFP11_VERSION: |
3854 | case OFP12_VERSION: | |
9e1fd49b BP |
3855 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
3856 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
3857 | } | |
2e3fa633 SH |
3858 | break; |
3859 | default: | |
3860 | NOT_REACHED(); | |
9e1fd49b BP |
3861 | } |
3862 | ||
3863 | return b; | |
3864 | } | |
3865 | ||
3866 | /* Encodes 'pp' into the format required by the switch_features message already | |
3867 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
3868 | * and appends the encoded version to 'b'. */ | |
3869 | void | |
3870 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
3871 | struct ofpbuf *b) | |
3872 | { | |
982697a4 | 3873 | const struct ofp_header *oh = b->data; |
9e1fd49b | 3874 | |
e0c91c0c SK |
3875 | if (oh->version < OFP13_VERSION) { |
3876 | ofputil_put_phy_port(oh->version, pp, b); | |
3877 | } | |
9e1fd49b BP |
3878 | } |
3879 | \f | |
3880 | /* ofputil_port_status */ | |
3881 | ||
3882 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
3883 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
3884 | enum ofperr | |
982697a4 | 3885 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
3886 | struct ofputil_port_status *ps) |
3887 | { | |
982697a4 | 3888 | const struct ofp_port_status *ops; |
9e1fd49b BP |
3889 | struct ofpbuf b; |
3890 | int retval; | |
3891 | ||
982697a4 BP |
3892 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3893 | ofpraw_pull_assert(&b); | |
3894 | ops = ofpbuf_pull(&b, sizeof *ops); | |
3895 | ||
9e1fd49b BP |
3896 | if (ops->reason != OFPPR_ADD && |
3897 | ops->reason != OFPPR_DELETE && | |
3898 | ops->reason != OFPPR_MODIFY) { | |
3899 | return OFPERR_NXBRC_BAD_REASON; | |
3900 | } | |
3901 | ps->reason = ops->reason; | |
3902 | ||
982697a4 | 3903 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 3904 | ovs_assert(retval != EOF); |
9e1fd49b BP |
3905 | return retval; |
3906 | } | |
3907 | ||
3908 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
3909 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
3910 | * a buffer owned by the caller. */ | |
3911 | struct ofpbuf * | |
3912 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
3913 | enum ofputil_protocol protocol) | |
3914 | { | |
3915 | struct ofp_port_status *ops; | |
3916 | struct ofpbuf *b; | |
2e3fa633 SH |
3917 | enum ofp_version version; |
3918 | enum ofpraw raw; | |
982697a4 BP |
3919 | |
3920 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
3921 | switch (version) { |
3922 | case OFP10_VERSION: | |
3923 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
3924 | break; | |
3925 | ||
3926 | case OFP11_VERSION: | |
3927 | case OFP12_VERSION: | |
2e1ae200 | 3928 | case OFP13_VERSION: |
2e3fa633 SH |
3929 | raw = OFPRAW_OFPT11_PORT_STATUS; |
3930 | break; | |
3931 | ||
3932 | default: | |
3933 | NOT_REACHED(); | |
3934 | } | |
3935 | ||
3936 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 3937 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 3938 | ops->reason = ps->reason; |
982697a4 BP |
3939 | ofputil_put_phy_port(version, &ps->desc, b); |
3940 | ofpmsg_update_length(b); | |
9e1fd49b BP |
3941 | return b; |
3942 | } | |
918f2b82 | 3943 | |
9e1fd49b BP |
3944 | /* ofputil_port_mod */ |
3945 | ||
3946 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in | |
3947 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
3948 | enum ofperr | |
3949 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
3950 | struct ofputil_port_mod *pm) | |
3951 | { | |
982697a4 BP |
3952 | enum ofpraw raw; |
3953 | struct ofpbuf b; | |
9e1fd49b | 3954 | |
982697a4 BP |
3955 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3956 | raw = ofpraw_pull_assert(&b); | |
3957 | ||
3958 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
3959 | const struct ofp10_port_mod *opm = b.data; | |
9e1fd49b | 3960 | |
4e022ec0 | 3961 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
3962 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
3963 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
3964 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
3965 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 BP |
3966 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
3967 | const struct ofp11_port_mod *opm = b.data; | |
9e1fd49b BP |
3968 | enum ofperr error; |
3969 | ||
9e1fd49b BP |
3970 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
3971 | if (error) { | |
3972 | return error; | |
3973 | } | |
3974 | ||
3975 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
3976 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
3977 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
3978 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
3979 | } else { | |
982697a4 | 3980 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
3981 | } |
3982 | ||
3983 | pm->config &= pm->mask; | |
3984 | return 0; | |
3985 | } | |
3986 | ||
3987 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
3988 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
3989 | * owned by the caller. */ | |
3990 | struct ofpbuf * | |
3991 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
3992 | enum ofputil_protocol protocol) | |
3993 | { | |
2e3fa633 | 3994 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
3995 | struct ofpbuf *b; |
3996 | ||
2e3fa633 SH |
3997 | switch (ofp_version) { |
3998 | case OFP10_VERSION: { | |
9e1fd49b BP |
3999 | struct ofp10_port_mod *opm; |
4000 | ||
982697a4 BP |
4001 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4002 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4003 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4004 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4005 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4006 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4007 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4008 | break; |
4009 | } | |
4010 | ||
5fe7c919 | 4011 | case OFP11_VERSION: |
2e1ae200 JR |
4012 | case OFP12_VERSION: |
4013 | case OFP13_VERSION: { | |
9e1fd49b BP |
4014 | struct ofp11_port_mod *opm; |
4015 | ||
982697a4 BP |
4016 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4017 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4018 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4019 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4020 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4021 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4022 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4023 | break; |
4024 | } | |
918f2b82 AZ |
4025 | default: |
4026 | NOT_REACHED(); | |
4027 | } | |
4028 | ||
4029 | return b; | |
4030 | } | |
4031 | ||
4032 | /* ofputil_table_mod */ | |
4033 | ||
4034 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in | |
4035 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4036 | enum ofperr | |
4037 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4038 | struct ofputil_table_mod *pm) | |
4039 | { | |
4040 | enum ofpraw raw; | |
4041 | struct ofpbuf b; | |
4042 | ||
4043 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4044 | raw = ofpraw_pull_assert(&b); | |
4045 | ||
4046 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
4047 | const struct ofp11_table_mod *otm = b.data; | |
4048 | ||
4049 | pm->table_id = otm->table_id; | |
4050 | pm->config = ntohl(otm->config); | |
4051 | } else { | |
4052 | return OFPERR_OFPBRC_BAD_TYPE; | |
4053 | } | |
4054 | ||
4055 | return 0; | |
4056 | } | |
4057 | ||
4058 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
4059 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4060 | * owned by the caller. */ | |
4061 | struct ofpbuf * | |
4062 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
4063 | enum ofputil_protocol protocol) | |
4064 | { | |
4065 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
4066 | struct ofpbuf *b; | |
4067 | ||
4068 | switch (ofp_version) { | |
4069 | case OFP10_VERSION: { | |
4070 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
4071 | "(\'-O OpenFlow11\')"); | |
4072 | break; | |
4073 | } | |
4074 | case OFP11_VERSION: | |
4075 | case OFP12_VERSION: | |
4076 | case OFP13_VERSION: { | |
4077 | struct ofp11_table_mod *otm; | |
2e3fa633 | 4078 | |
918f2b82 AZ |
4079 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
4080 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
4081 | otm->table_id = pm->table_id; | |
4082 | otm->config = htonl(pm->config); | |
4083 | break; | |
4084 | } | |
2e3fa633 | 4085 | default: |
9e1fd49b BP |
4086 | NOT_REACHED(); |
4087 | } | |
4088 | ||
4089 | return b; | |
4090 | } | |
2b07c8b1 | 4091 | \f |
6ea4776b JR |
4092 | /* ofputil_role_request */ |
4093 | ||
4094 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
4095 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
4096 | * OFPERR_* value. */ | |
4097 | enum ofperr | |
4098 | ofputil_decode_role_message(const struct ofp_header *oh, | |
4099 | struct ofputil_role_request *rr) | |
4100 | { | |
6ea4776b JR |
4101 | struct ofpbuf b; |
4102 | enum ofpraw raw; | |
4103 | ||
6ea4776b JR |
4104 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4105 | raw = ofpraw_pull_assert(&b); | |
4106 | ||
f4f1ea7e BP |
4107 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
4108 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
4109 | const struct ofp12_role_request *orr = b.l3; | |
6ea4776b | 4110 | |
f4f1ea7e BP |
4111 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
4112 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
4113 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
4114 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
4115 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
4116 | } |
4117 | ||
f4f1ea7e | 4118 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
4119 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
4120 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 4121 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
4122 | rr->have_generation_id = false; |
4123 | rr->generation_id = 0; | |
4124 | } else { | |
4125 | rr->have_generation_id = true; | |
4126 | rr->generation_id = ntohll(orr->generation_id); | |
4127 | } | |
4128 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
4129 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
4130 | const struct nx_role_request *nrr = b.l3; | |
4131 | ||
4132 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
4133 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
4134 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
4135 | ||
4136 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
4137 | nrr->role != htonl(NX_ROLE_MASTER) && | |
4138 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
4139 | return OFPERR_OFPRRFC_BAD_ROLE; | |
4140 | } | |
6ea4776b | 4141 | |
f4f1ea7e BP |
4142 | rr->role = ntohl(nrr->role) + 1; |
4143 | rr->have_generation_id = false; | |
4144 | rr->generation_id = 0; | |
4145 | } else { | |
4146 | NOT_REACHED(); | |
6ea4776b JR |
4147 | } |
4148 | ||
6ea4776b JR |
4149 | return 0; |
4150 | } | |
4151 | ||
4152 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
4153 | * buffer owned by the caller. */ | |
4154 | struct ofpbuf * | |
4155 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 4156 | const struct ofputil_role_request *rr) |
6ea4776b | 4157 | { |
6ea4776b | 4158 | struct ofpbuf *buf; |
6ea4776b JR |
4159 | enum ofpraw raw; |
4160 | ||
f4f1ea7e | 4161 | raw = ofpraw_decode_assert(request); |
6ea4776b | 4162 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 4163 | struct ofp12_role_request *orr; |
6ea4776b | 4164 | |
f4f1ea7e BP |
4165 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
4166 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 4167 | |
147cc9d3 BP |
4168 | orr->role = htonl(rr->role); |
4169 | orr->generation_id = htonll(rr->have_generation_id | |
4170 | ? rr->generation_id | |
4171 | : UINT64_MAX); | |
f4f1ea7e BP |
4172 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
4173 | struct nx_role_request *nrr; | |
4174 | ||
4175 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
4176 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
4177 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
4178 | ||
4179 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
4180 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
4181 | nrr->role = htonl(rr->role - 1); | |
4182 | } else { | |
4183 | NOT_REACHED(); | |
6ea4776b | 4184 | } |
6ea4776b JR |
4185 | |
4186 | return buf; | |
4187 | } | |
4188 | \f | |
307975da SH |
4189 | /* Table stats. */ |
4190 | ||
4191 | static void | |
4192 | ofputil_put_ofp10_table_stats(const struct ofp12_table_stats *in, | |
4193 | struct ofpbuf *buf) | |
4194 | { | |
4195 | struct wc_map { | |
31a9e63f | 4196 | enum ofp10_flow_wildcards wc10; |
307975da SH |
4197 | enum oxm12_ofb_match_fields mf12; |
4198 | }; | |
4199 | ||
4200 | static const struct wc_map wc_map[] = { | |
4201 | { OFPFW10_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4202 | { OFPFW10_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4203 | { OFPFW10_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4204 | { OFPFW10_DL_DST, OFPXMT12_OFB_ETH_DST}, | |
4205 | { OFPFW10_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4206 | { OFPFW10_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4207 | { OFPFW10_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4208 | { OFPFW10_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4209 | { OFPFW10_NW_SRC_MASK, OFPXMT12_OFB_IPV4_SRC }, | |
4210 | { OFPFW10_NW_DST_MASK, OFPXMT12_OFB_IPV4_DST }, | |
4211 | { OFPFW10_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4212 | { OFPFW10_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4213 | }; | |
4214 | ||
4215 | struct ofp10_table_stats *out; | |
4216 | const struct wc_map *p; | |
4217 | ||
3bdc692b | 4218 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4219 | out->table_id = in->table_id; |
3bdc692b | 4220 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4221 | out->wildcards = 0; |
4222 | for (p = wc_map; p < &wc_map[ARRAY_SIZE(wc_map)]; p++) { | |
4223 | if (in->wildcards & htonll(1ULL << p->mf12)) { | |
4224 | out->wildcards |= htonl(p->wc10); | |
4225 | } | |
4226 | } | |
4227 | out->max_entries = in->max_entries; | |
4228 | out->active_count = in->active_count; | |
4229 | put_32aligned_be64(&out->lookup_count, in->lookup_count); | |
4230 | put_32aligned_be64(&out->matched_count, in->matched_count); | |
4231 | } | |
4232 | ||
4233 | static ovs_be32 | |
4234 | oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12) | |
4235 | { | |
4236 | struct map { | |
4237 | enum ofp11_flow_match_fields fmf11; | |
4238 | enum oxm12_ofb_match_fields mf12; | |
4239 | }; | |
4240 | ||
4241 | static const struct map map[] = { | |
4242 | { OFPFMF11_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4243 | { OFPFMF11_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4244 | { OFPFMF11_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4245 | { OFPFMF11_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4246 | { OFPFMF11_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4247 | { OFPFMF11_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4248 | { OFPFMF11_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4249 | { OFPFMF11_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4250 | { OFPFMF11_MPLS_LABEL, OFPXMT12_OFB_MPLS_LABEL }, | |
4251 | { OFPFMF11_MPLS_TC, OFPXMT12_OFB_MPLS_TC }, | |
4252 | /* I don't know what OFPFMF11_TYPE means. */ | |
4253 | { OFPFMF11_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4254 | { OFPFMF11_DL_DST, OFPXMT12_OFB_ETH_DST }, | |
4255 | { OFPFMF11_NW_SRC, OFPXMT12_OFB_IPV4_SRC }, | |
4256 | { OFPFMF11_NW_DST, OFPXMT12_OFB_IPV4_DST }, | |
4257 | { OFPFMF11_METADATA, OFPXMT12_OFB_METADATA }, | |
4258 | }; | |
4259 | ||
4260 | const struct map *p; | |
4261 | uint32_t fmf11; | |
4262 | ||
4263 | fmf11 = 0; | |
4264 | for (p = map; p < &map[ARRAY_SIZE(map)]; p++) { | |
4265 | if (oxm12 & htonll(1ULL << p->mf12)) { | |
4266 | fmf11 |= p->fmf11; | |
4267 | } | |
4268 | } | |
4269 | return htonl(fmf11); | |
4270 | } | |
4271 | ||
4272 | static void | |
4273 | ofputil_put_ofp11_table_stats(const struct ofp12_table_stats *in, | |
4274 | struct ofpbuf *buf) | |
4275 | { | |
4276 | struct ofp11_table_stats *out; | |
4277 | ||
3bdc692b | 4278 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4279 | out->table_id = in->table_id; |
3bdc692b | 4280 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4281 | out->wildcards = oxm12_to_ofp11_flow_match_fields(in->wildcards); |
4282 | out->match = oxm12_to_ofp11_flow_match_fields(in->match); | |
4283 | out->instructions = in->instructions; | |
4284 | out->write_actions = in->write_actions; | |
4285 | out->apply_actions = in->apply_actions; | |
4286 | out->config = in->config; | |
4287 | out->max_entries = in->max_entries; | |
4288 | out->active_count = in->active_count; | |
4289 | out->lookup_count = in->lookup_count; | |
4290 | out->matched_count = in->matched_count; | |
4291 | } | |
4292 | ||
6240624b BP |
4293 | static void |
4294 | ofputil_put_ofp12_table_stats(const struct ofp12_table_stats *in, | |
4295 | struct ofpbuf *buf) | |
4296 | { | |
4297 | struct ofp12_table_stats *out = ofpbuf_put(buf, in, sizeof *in); | |
4298 | ||
4299 | /* Trim off OF1.3-only capabilities. */ | |
4300 | out->match &= htonll(OFPXMT12_MASK); | |
4301 | out->wildcards &= htonll(OFPXMT12_MASK); | |
4302 | out->write_setfields &= htonll(OFPXMT12_MASK); | |
4303 | out->apply_setfields &= htonll(OFPXMT12_MASK); | |
4304 | } | |
4305 | ||
2e1ae200 JR |
4306 | static void |
4307 | ofputil_put_ofp13_table_stats(const struct ofp12_table_stats *in, | |
4308 | struct ofpbuf *buf) | |
4309 | { | |
4310 | struct ofp13_table_stats *out; | |
4311 | ||
4312 | /* OF 1.3 splits table features off the ofp_table_stats, | |
4313 | * so there is not much here. */ | |
4314 | ||
4315 | out = ofpbuf_put_uninit(buf, sizeof *out); | |
4316 | out->table_id = in->table_id; | |
4317 | out->active_count = in->active_count; | |
4318 | out->lookup_count = in->lookup_count; | |
4319 | out->matched_count = in->matched_count; | |
4320 | } | |
4321 | ||
307975da SH |
4322 | struct ofpbuf * |
4323 | ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats[], int n, | |
4324 | const struct ofp_header *request) | |
4325 | { | |
4326 | struct ofpbuf *reply; | |
4327 | int i; | |
4328 | ||
4329 | reply = ofpraw_alloc_stats_reply(request, n * sizeof *stats); | |
4330 | ||
6240624b BP |
4331 | for (i = 0; i < n; i++) { |
4332 | switch ((enum ofp_version) request->version) { | |
4333 | case OFP10_VERSION: | |
307975da | 4334 | ofputil_put_ofp10_table_stats(&stats[i], reply); |
6240624b | 4335 | break; |
307975da | 4336 | |
6240624b | 4337 | case OFP11_VERSION: |
307975da | 4338 | ofputil_put_ofp11_table_stats(&stats[i], reply); |
6240624b | 4339 | break; |
307975da | 4340 | |
6240624b BP |
4341 | case OFP12_VERSION: |
4342 | ofputil_put_ofp12_table_stats(&stats[i], reply); | |
4343 | break; | |
307975da | 4344 | |
6240624b | 4345 | case OFP13_VERSION: |
2e1ae200 | 4346 | ofputil_put_ofp13_table_stats(&stats[i], reply); |
6240624b | 4347 | break; |
2e1ae200 | 4348 | |
6240624b BP |
4349 | default: |
4350 | NOT_REACHED(); | |
4351 | } | |
307975da SH |
4352 | } |
4353 | ||
4354 | return reply; | |
4355 | } | |
4356 | \f | |
2b07c8b1 BP |
4357 | /* ofputil_flow_monitor_request */ |
4358 | ||
4359 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
4360 | * ofputil_flow_monitor_request in 'rq'. | |
4361 | * | |
4362 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
4363 | * message. Calling this function multiple times for a single 'msg' iterates | |
4364 | * through the requests. The caller must initially leave 'msg''s layer | |
4365 | * pointers null and not modify them between calls. | |
4366 | * | |
4367 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
4368 | * otherwise an OFPERR_* value. */ | |
4369 | int | |
4370 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
4371 | struct ofpbuf *msg) | |
4372 | { | |
4373 | struct nx_flow_monitor_request *nfmr; | |
4374 | uint16_t flags; | |
4375 | ||
4376 | if (!msg->l2) { | |
4377 | msg->l2 = msg->data; | |
982697a4 | 4378 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
4379 | } |
4380 | ||
4381 | if (!msg->size) { | |
4382 | return EOF; | |
4383 | } | |
4384 | ||
4385 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
4386 | if (!nfmr) { | |
4387 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %zu " | |
4388 | "leftover bytes at end", msg->size); | |
4389 | return OFPERR_OFPBRC_BAD_LEN; | |
4390 | } | |
4391 | ||
4392 | flags = ntohs(nfmr->flags); | |
4393 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
4394 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
4395 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
4396 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
4397 | flags); | |
4398 | return OFPERR_NXBRC_FM_BAD_FLAGS; | |
4399 | } | |
4400 | ||
4401 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
4402 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4403 | } | |
4404 | ||
4405 | rq->id = ntohl(nfmr->id); | |
4406 | rq->flags = flags; | |
4e022ec0 | 4407 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
4408 | rq->table_id = nfmr->table_id; |
4409 | ||
81a76618 | 4410 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
4411 | } |
4412 | ||
4413 | void | |
4414 | ofputil_append_flow_monitor_request( | |
4415 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
4416 | { | |
4417 | struct nx_flow_monitor_request *nfmr; | |
4418 | size_t start_ofs; | |
4419 | int match_len; | |
4420 | ||
4421 | if (!msg->size) { | |
982697a4 | 4422 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
4423 | } |
4424 | ||
4425 | start_ofs = msg->size; | |
4426 | ofpbuf_put_zeros(msg, sizeof *nfmr); | |
7623f4dd | 4427 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
4428 | |
4429 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
4430 | nfmr->id = htonl(rq->id); | |
4431 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 4432 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
4433 | nfmr->match_len = htons(match_len); |
4434 | nfmr->table_id = rq->table_id; | |
4435 | } | |
4436 | ||
4437 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
4438 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 4439 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
4440 | * |
4441 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
4442 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
4443 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
4444 | * will point into the 'ofpacts' buffer. | |
4445 | * | |
4446 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
4447 | * this function multiple times for a single 'msg' iterates through the | |
4448 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
4449 | * not modify them between calls. | |
4450 | * | |
4451 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
4452 | * otherwise an OFPERR_* value. */ | |
4453 | int | |
4454 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
4455 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
4456 | { | |
4457 | struct nx_flow_update_header *nfuh; | |
4458 | unsigned int length; | |
4459 | ||
4460 | if (!msg->l2) { | |
4461 | msg->l2 = msg->data; | |
982697a4 | 4462 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
4463 | } |
4464 | ||
4465 | if (!msg->size) { | |
4466 | return EOF; | |
4467 | } | |
4468 | ||
4469 | if (msg->size < sizeof(struct nx_flow_update_header)) { | |
4470 | goto bad_len; | |
4471 | } | |
4472 | ||
4473 | nfuh = msg->data; | |
4474 | update->event = ntohs(nfuh->event); | |
4475 | length = ntohs(nfuh->length); | |
4476 | if (length > msg->size || length % 8) { | |
4477 | goto bad_len; | |
4478 | } | |
4479 | ||
4480 | if (update->event == NXFME_ABBREV) { | |
4481 | struct nx_flow_update_abbrev *nfua; | |
4482 | ||
4483 | if (length != sizeof *nfua) { | |
4484 | goto bad_len; | |
4485 | } | |
4486 | ||
4487 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
4488 | update->xid = nfua->xid; | |
4489 | return 0; | |
4490 | } else if (update->event == NXFME_ADDED | |
4491 | || update->event == NXFME_DELETED | |
4492 | || update->event == NXFME_MODIFIED) { | |
4493 | struct nx_flow_update_full *nfuf; | |
4494 | unsigned int actions_len; | |
4495 | unsigned int match_len; | |
4496 | enum ofperr error; | |
4497 | ||
4498 | if (length < sizeof *nfuf) { | |
4499 | goto bad_len; | |
4500 | } | |
4501 | ||
4502 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
4503 | match_len = ntohs(nfuf->match_len); | |
4504 | if (sizeof *nfuf + match_len > length) { | |
4505 | goto bad_len; | |
4506 | } | |
4507 | ||
4508 | update->reason = ntohs(nfuf->reason); | |
4509 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
4510 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
4511 | update->table_id = nfuf->table_id; | |
4512 | update->cookie = nfuf->cookie; | |
81a76618 | 4513 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 4514 | |
81a76618 | 4515 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
4516 | if (error) { |
4517 | return error; | |
4518 | } | |
4519 | ||
4520 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
4521 | error = ofpacts_pull_openflow10(msg, actions_len, ofpacts); | |
4522 | if (error) { | |
4523 | return error; | |
4524 | } | |
4525 | ||
4526 | update->ofpacts = ofpacts->data; | |
4527 | update->ofpacts_len = ofpacts->size; | |
4528 | return 0; | |
4529 | } else { | |
4530 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
4531 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
4532 | ntohs(nfuh->event)); | |
15549878 | 4533 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
4534 | } |
4535 | ||
4536 | bad_len: | |
4537 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %zu " | |
4538 | "leftover bytes at end", msg->size); | |
4539 | return OFPERR_OFPBRC_BAD_LEN; | |
4540 | } | |
4541 | ||
4542 | uint32_t | |
4543 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
4544 | { | |
982697a4 BP |
4545 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
4546 | ||
4547 | return ntohl(cancel->id); | |
2b07c8b1 | 4548 | } |
9e1fd49b | 4549 | |
2b07c8b1 BP |
4550 | struct ofpbuf * |
4551 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
4552 | { | |
4553 | struct nx_flow_monitor_cancel *nfmc; | |
4554 | struct ofpbuf *msg; | |
4555 | ||
982697a4 BP |
4556 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
4557 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
4558 | nfmc->id = htonl(id); |
4559 | return msg; | |
4560 | } | |
4561 | ||
4562 | void | |
4563 | ofputil_start_flow_update(struct list *replies) | |
4564 | { | |
4565 | struct ofpbuf *msg; | |
4566 | ||
982697a4 BP |
4567 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
4568 | htonl(0), 1024); | |
2b07c8b1 BP |
4569 | |
4570 | list_init(replies); | |
4571 | list_push_back(replies, &msg->list_node); | |
4572 | } | |
4573 | ||
4574 | void | |
4575 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
4576 | struct list *replies) | |
4577 | { | |
4578 | struct nx_flow_update_header *nfuh; | |
4579 | struct ofpbuf *msg; | |
4580 | size_t start_ofs; | |
4581 | ||
4582 | msg = ofpbuf_from_list(list_back(replies)); | |
4583 | start_ofs = msg->size; | |
4584 | ||
4585 | if (update->event == NXFME_ABBREV) { | |
4586 | struct nx_flow_update_abbrev *nfua; | |
4587 | ||
4588 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
4589 | nfua->xid = update->xid; | |
4590 | } else { | |
4591 | struct nx_flow_update_full *nfuf; | |
4592 | int match_len; | |
4593 | ||
4594 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 4595 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
4596 | ofpacts_put_openflow10(update->ofpacts, update->ofpacts_len, msg); |
4597 | ||
4598 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); | |
4599 | nfuf->reason = htons(update->reason); | |
81a76618 | 4600 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
4601 | nfuf->idle_timeout = htons(update->idle_timeout); |
4602 | nfuf->hard_timeout = htons(update->hard_timeout); | |
4603 | nfuf->match_len = htons(match_len); | |
4604 | nfuf->table_id = update->table_id; | |
4605 | nfuf->cookie = update->cookie; | |
4606 | } | |
4607 | ||
4608 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
4609 | nfuh->length = htons(msg->size - start_ofs); | |
4610 | nfuh->event = htons(update->event); | |
4611 | ||
982697a4 | 4612 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
4613 | } |
4614 | \f | |
c6a93eb7 | 4615 | struct ofpbuf * |
de0f3156 SH |
4616 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
4617 | enum ofputil_protocol protocol) | |
c6a93eb7 | 4618 | { |
de0f3156 | 4619 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
4620 | struct ofpbuf *msg; |
4621 | size_t size; | |
4622 | ||
982697a4 | 4623 | size = po->ofpacts_len; |
c6a93eb7 BP |
4624 | if (po->buffer_id == UINT32_MAX) { |
4625 | size += po->packet_len; | |
4626 | } | |
4627 | ||
de0f3156 SH |
4628 | switch (ofp_version) { |
4629 | case OFP10_VERSION: { | |
31a9e63f | 4630 | struct ofp10_packet_out *opo; |
de0f3156 SH |
4631 | size_t actions_ofs; |
4632 | ||
4633 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
4634 | ofpbuf_put_zeros(msg, sizeof *opo); | |
4635 | actions_ofs = msg->size; | |
4636 | ofpacts_put_openflow10(po->ofpacts, po->ofpacts_len, msg); | |
4637 | ||
4638 | opo = msg->l3; | |
4639 | opo->buffer_id = htonl(po->buffer_id); | |
4e022ec0 | 4640 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
de0f3156 SH |
4641 | opo->actions_len = htons(msg->size - actions_ofs); |
4642 | break; | |
4643 | } | |
f25d0cf3 | 4644 | |
de0f3156 | 4645 | case OFP11_VERSION: |
2e1ae200 JR |
4646 | case OFP12_VERSION: |
4647 | case OFP13_VERSION: { | |
7c1b1a0d SH |
4648 | struct ofp11_packet_out *opo; |
4649 | size_t len; | |
4650 | ||
4651 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
4652 | ofpbuf_put_zeros(msg, sizeof *opo); | |
4653 | len = ofpacts_put_openflow11_actions(po->ofpacts, po->ofpacts_len, msg); | |
4654 | ||
4655 | opo = msg->l3; | |
4656 | opo->buffer_id = htonl(po->buffer_id); | |
4657 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
4658 | opo->actions_len = htons(len); | |
4659 | break; | |
4660 | } | |
4661 | ||
de0f3156 SH |
4662 | default: |
4663 | NOT_REACHED(); | |
4664 | } | |
f25d0cf3 | 4665 | |
c6a93eb7 BP |
4666 | if (po->buffer_id == UINT32_MAX) { |
4667 | ofpbuf_put(msg, po->packet, po->packet_len); | |
4668 | } | |
f25d0cf3 | 4669 | |
982697a4 | 4670 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
4671 | |
4672 | return msg; | |
4673 | } | |
d1e2cf21 | 4674 | \f |
fa37b408 BP |
4675 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
4676 | struct ofpbuf * | |
1a126c0c | 4677 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 4678 | { |
1a126c0c | 4679 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 4680 | htonl(0), 0); |
fa37b408 BP |
4681 | } |
4682 | ||
4683 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
4684 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
4685 | struct ofpbuf * | |
4686 | make_echo_reply(const struct ofp_header *rq) | |
4687 | { | |
982697a4 BP |
4688 | struct ofpbuf rq_buf; |
4689 | struct ofpbuf *reply; | |
4690 | ||
4691 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
4692 | ofpraw_pull_assert(&rq_buf); | |
4693 | ||
4694 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); | |
4695 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
4696 | return reply; | |
fa37b408 BP |
4697 | } |
4698 | ||
efb80167 | 4699 | struct ofpbuf * |
a0ae0b6e | 4700 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 4701 | { |
a0ae0b6e SH |
4702 | enum ofpraw type; |
4703 | ||
4704 | switch (ofp_version) { | |
2e1ae200 | 4705 | case OFP13_VERSION: |
a0ae0b6e SH |
4706 | case OFP12_VERSION: |
4707 | case OFP11_VERSION: | |
4708 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
4709 | break; | |
4710 | ||
4711 | case OFP10_VERSION: | |
4712 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
4713 | break; | |
4714 | ||
4715 | default: | |
4716 | NOT_REACHED(); | |
4717 | } | |
4718 | ||
4719 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
4720 | } |
4721 | ||
7257b535 BP |
4722 | const char * |
4723 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
4724 | { | |
4725 | switch (flags & OFPC_FRAG_MASK) { | |
4726 | case OFPC_FRAG_NORMAL: return "normal"; | |
4727 | case OFPC_FRAG_DROP: return "drop"; | |
4728 | case OFPC_FRAG_REASM: return "reassemble"; | |
4729 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
4730 | } | |
4731 | ||
4732 | NOT_REACHED(); | |
4733 | } | |
4734 | ||
4735 | bool | |
4736 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
4737 | { | |
4738 | if (!strcasecmp(s, "normal")) { | |
4739 | *flags = OFPC_FRAG_NORMAL; | |
4740 | } else if (!strcasecmp(s, "drop")) { | |
4741 | *flags = OFPC_FRAG_DROP; | |
4742 | } else if (!strcasecmp(s, "reassemble")) { | |
4743 | *flags = OFPC_FRAG_REASM; | |
4744 | } else if (!strcasecmp(s, "nx-match")) { | |
4745 | *flags = OFPC_FRAG_NX_MATCH; | |
4746 | } else { | |
4747 | return false; | |
4748 | } | |
4749 | return true; | |
4750 | } | |
4751 | ||
7b7503ea BP |
4752 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
4753 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
4754 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 4755 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
4756 | * |
4757 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
4758 | enum ofperr | |
4e022ec0 | 4759 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
4760 | { |
4761 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
4762 | ||
4e022ec0 AW |
4763 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
4764 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 4765 | return 0; |
4e022ec0 AW |
4766 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
4767 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
4768 | return 0; |
4769 | } else { | |
bc146369 | 4770 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
4771 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
4772 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
4773 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
4774 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
4775 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
4776 | } | |
4777 | } | |
4778 | ||
4779 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
4780 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
4781 | * | |
4782 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
4783 | ovs_be32 | |
4e022ec0 | 4784 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 4785 | { |
4e022ec0 AW |
4786 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
4787 | ? ofp_to_u16(ofp10_port) | |
4788 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
4789 | } |
4790 | ||
08f94c0e | 4791 | /* Checks that 'port' is a valid output port for the OFPAT10_OUTPUT action, given |
c1c9c9c4 | 4792 | * that the switch will never have more than 'max_ports' ports. Returns 0 if |
90bf1e07 BP |
4793 | * 'port' is valid, otherwise an OpenFlow return code. */ |
4794 | enum ofperr | |
4e022ec0 | 4795 | ofputil_check_output_port(ofp_port_t port, ofp_port_t max_ports) |
fa37b408 BP |
4796 | { |
4797 | switch (port) { | |
4798 | case OFPP_IN_PORT: | |
4799 | case OFPP_TABLE: | |
4800 | case OFPP_NORMAL: | |
4801 | case OFPP_FLOOD: | |
4802 | case OFPP_ALL: | |
4803 | case OFPP_CONTROLLER: | |
0d193212 | 4804 | case OFPP_NONE: |
fa37b408 BP |
4805 | case OFPP_LOCAL: |
4806 | return 0; | |
4807 | ||
4808 | default: | |
4e022ec0 | 4809 | if (ofp_to_u16(port) < ofp_to_u16(max_ports)) { |
fa37b408 BP |
4810 | return 0; |
4811 | } | |
90bf1e07 | 4812 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
fa37b408 BP |
4813 | } |
4814 | } | |
4815 | ||
39dc9082 BP |
4816 | #define OFPUTIL_NAMED_PORTS \ |
4817 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
4818 | OFPUTIL_NAMED_PORT(TABLE) \ | |
4819 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
4820 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
4821 | OFPUTIL_NAMED_PORT(ALL) \ | |
4822 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
4823 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
7f05e7ab JR |
4824 | OFPUTIL_NAMED_PORT(ANY) |
4825 | ||
4826 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
4827 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
4828 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
4829 | OFPUTIL_NAMED_PORT(NONE) |
4830 | ||
8010100b BP |
4831 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
4832 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
4833 | * (e.g. "LOCAL"). | |
c6100d92 | 4834 | * |
8010100b BP |
4835 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
4836 | * or name. The caller should issue an error message in this case, because | |
4837 | * this function usually does not. (This gives the caller an opportunity to | |
4838 | * look up the port name another way, e.g. by contacting the switch and listing | |
4839 | * the names of all its ports). | |
c6100d92 BP |
4840 | * |
4841 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
4842 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
4843 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 4844 | bool |
4e022ec0 | 4845 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 4846 | { |
4e022ec0 | 4847 | uint32_t port32; |
c6100d92 | 4848 | |
8010100b | 4849 | *portp = 0; |
c6100d92 | 4850 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
4851 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
4852 | /* Pass. */ | |
4853 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
4854 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
4855 | "be translated to %u when talking to an OF1.1 or " | |
4856 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 4857 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
4858 | char name[OFP_MAX_PORT_NAME_LEN]; |
4859 | ||
4860 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
4861 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
4862 | "for compatibility with OpenFlow 1.1 and later", | |
4863 | name, port32); | |
4e022ec0 | 4864 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 4865 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 4866 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 4867 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 4868 | return false; |
c6100d92 | 4869 | } else { |
4e022ec0 | 4870 | port32 -= OFPP11_OFFSET; |
c6100d92 | 4871 | } |
4e022ec0 AW |
4872 | |
4873 | *portp = u16_to_ofp(port32); | |
4874 | return true; | |
c6100d92 BP |
4875 | } else { |
4876 | struct pair { | |
4877 | const char *name; | |
4e022ec0 | 4878 | ofp_port_t value; |
c6100d92 BP |
4879 | }; |
4880 | static const struct pair pairs[] = { | |
39dc9082 | 4881 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 4882 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 4883 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
4884 | }; |
4885 | const struct pair *p; | |
39dc9082 | 4886 | |
c6100d92 BP |
4887 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
4888 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
4889 | *portp = p->value; |
4890 | return true; | |
c6100d92 | 4891 | } |
39dc9082 | 4892 | } |
8010100b | 4893 | return false; |
39dc9082 | 4894 | } |
39dc9082 BP |
4895 | } |
4896 | ||
4897 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
4898 | * Most ports' string representation is just the port number, but for special | |
4899 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
4900 | void | |
4e022ec0 | 4901 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 4902 | { |
28b11432 BP |
4903 | char name[OFP_MAX_PORT_NAME_LEN]; |
4904 | ||
4905 | ofputil_port_to_string(port, name, sizeof name); | |
4906 | ds_put_cstr(s, name); | |
4907 | } | |
39dc9082 | 4908 | |
28b11432 BP |
4909 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
4910 | * representation of OpenFlow port number 'port'. Most ports are represented | |
4911 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
4912 | * by name, e.g. "LOCAL". */ | |
4913 | void | |
4914 | ofputil_port_to_string(ofp_port_t port, | |
4915 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
4916 | { | |
39dc9082 | 4917 | switch (port) { |
28b11432 BP |
4918 | #define OFPUTIL_NAMED_PORT(NAME) \ |
4919 | case OFPP_##NAME: \ | |
4920 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
4921 | break; | |
39dc9082 BP |
4922 | OFPUTIL_NAMED_PORTS |
4923 | #undef OFPUTIL_NAMED_PORT | |
4924 | ||
4925 | default: | |
28b11432 BP |
4926 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
4927 | break; | |
39dc9082 | 4928 | } |
39dc9082 BP |
4929 | } |
4930 | ||
7395c052 NZ |
4931 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
4932 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
4933 | * (either "ANY" or "ALL"). | |
4934 | * | |
4935 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
4936 | * name. */ | |
4937 | bool | |
4938 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
4939 | { | |
4940 | if (!strcasecmp(s, "any")) { | |
4941 | *group_idp = OFPG11_ANY; | |
4942 | } else if (!strcasecmp(s, "all")) { | |
4943 | *group_idp = OFPG11_ALL; | |
4944 | } else if (!str_to_uint(s, 10, group_idp)) { | |
4945 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
4946 | "32-bit nonnegative integers or the keywords ANY or " | |
4947 | "ALL.)", s); | |
4948 | return false; | |
4949 | } | |
4950 | ||
4951 | return true; | |
4952 | } | |
4953 | ||
4954 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
4955 | * Most groups' string representation is just the number, but for special | |
4956 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
4957 | void | |
4958 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
4959 | { | |
4960 | char name[MAX_GROUP_NAME_LEN]; | |
4961 | ||
4962 | ofputil_group_to_string(group_id, name, sizeof name); | |
4963 | ds_put_cstr(s, name); | |
4964 | } | |
4965 | ||
4966 | ||
4967 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
4968 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
4969 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
4970 | * by name, e.g. "ALL". */ | |
4971 | void | |
4972 | ofputil_group_to_string(uint32_t group_id, | |
4973 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
4974 | { | |
4975 | switch (group_id) { | |
4976 | case OFPG11_ALL: | |
4977 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
4978 | break; | |
4979 | ||
4980 | case OFPG11_ANY: | |
4981 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
4982 | break; | |
4983 | ||
4984 | default: | |
4985 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
4986 | break; | |
4987 | } | |
4988 | } | |
4989 | ||
2be393ed JP |
4990 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
4991 | * 'ofp_version', tries to pull the first element from the array. If | |
4992 | * successful, initializes '*pp' with an abstract representation of the | |
4993 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
4994 | * On an error, returns a positive OFPERR_* value. */ | |
4995 | int | |
2e3fa633 | 4996 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
4997 | struct ofputil_phy_port *pp) |
4998 | { | |
2e3fa633 SH |
4999 | switch (ofp_version) { |
5000 | case OFP10_VERSION: { | |
2be393ed JP |
5001 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
5002 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
5003 | } |
5004 | case OFP11_VERSION: | |
2e1ae200 JR |
5005 | case OFP12_VERSION: |
5006 | case OFP13_VERSION: { | |
2be393ed JP |
5007 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
5008 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
5009 | } | |
2e3fa633 SH |
5010 | default: |
5011 | NOT_REACHED(); | |
5012 | } | |
2be393ed JP |
5013 | } |
5014 | ||
5015 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type | |
5016 | * 'ofp_version', returns the number of elements. */ | |
5017 | size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b) | |
5018 | { | |
5b5a3a67 | 5019 | return b->size / ofputil_get_phy_port_size(ofp_version); |
2be393ed JP |
5020 | } |
5021 | ||
e23ae585 | 5022 | /* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if |
08f94c0e | 5023 | * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 if |
e23ae585 BP |
5024 | * 'name' is not the name of any action. |
5025 | * | |
5026 | * ofp-util.def lists the mapping from names to action. */ | |
5027 | int | |
5028 | ofputil_action_code_from_name(const char *name) | |
5029 | { | |
a00d4bd0 | 5030 | static const char *const names[OFPUTIL_N_ACTIONS] = { |
690a61c5 | 5031 | NULL, |
3ddcaf2d BP |
5032 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME, |
5033 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, | |
5034 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, | |
e23ae585 BP |
5035 | #include "ofp-util.def" |
5036 | }; | |
5037 | ||
a00d4bd0 | 5038 | const char *const *p; |
e23ae585 BP |
5039 | |
5040 | for (p = names; p < &names[ARRAY_SIZE(names)]; p++) { | |
5041 | if (*p && !strcasecmp(name, *p)) { | |
5042 | return p - names; | |
5043 | } | |
5044 | } | |
5045 | return -1; | |
5046 | } | |
5047 | ||
93996add BP |
5048 | /* Appends an action of the type specified by 'code' to 'buf' and returns the |
5049 | * action. Initializes the parts of 'action' that identify it as having type | |
5050 | * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that | |
5051 | * have variable length, the length used and cleared is that of struct | |
5052 | * <STRUCT>. */ | |
5053 | void * | |
5054 | ofputil_put_action(enum ofputil_action_code code, struct ofpbuf *buf) | |
5055 | { | |
5056 | switch (code) { | |
690a61c5 BP |
5057 | case OFPUTIL_ACTION_INVALID: |
5058 | NOT_REACHED(); | |
5059 | ||
3ddcaf2d BP |
5060 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
5061 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5062 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
93996add BP |
5063 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); |
5064 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
5065 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5066 | #include "ofp-util.def" | |
5067 | } | |
5068 | NOT_REACHED(); | |
5069 | } | |
5070 | ||
08f94c0e | 5071 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
93996add BP |
5072 | void \ |
5073 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5074 | { \ | |
5075 | memset(s, 0, sizeof *s); \ | |
5076 | s->type = htons(ENUM); \ | |
5077 | s->len = htons(sizeof *s); \ | |
5078 | } \ | |
5079 | \ | |
5080 | struct STRUCT * \ | |
5081 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5082 | { \ | |
5083 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5084 | ofputil_init_##ENUM(s); \ | |
5085 | return s; \ | |
5086 | } | |
3ddcaf2d BP |
5087 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5088 | OFPAT10_ACTION(ENUM, STRUCT, NAME) | |
93996add BP |
5089 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5090 | void \ | |
5091 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5092 | { \ | |
5093 | memset(s, 0, sizeof *s); \ | |
08f94c0e | 5094 | s->type = htons(OFPAT10_VENDOR); \ |
93996add BP |
5095 | s->len = htons(sizeof *s); \ |
5096 | s->vendor = htonl(NX_VENDOR_ID); \ | |
5097 | s->subtype = htons(ENUM); \ | |
5098 | } \ | |
5099 | \ | |
5100 | struct STRUCT * \ | |
5101 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5102 | { \ | |
5103 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5104 | ofputil_init_##ENUM(s); \ | |
5105 | return s; \ | |
5106 | } | |
5107 | #include "ofp-util.def" | |
5108 | ||
3cbd9931 | 5109 | static void |
81a76618 | 5110 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
5111 | { |
5112 | enum { | |
5113 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
5114 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
5115 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 5116 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
5117 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
5118 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 5119 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
5120 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
5121 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
5122 | } may_match; |
5123 | ||
5124 | struct flow_wildcards wc; | |
5125 | ||
5126 | /* Figure out what fields may be matched. */ | |
81a76618 | 5127 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 5128 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
5129 | if (match->flow.nw_proto == IPPROTO_TCP || |
5130 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 5131 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 5132 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
5133 | may_match |= MAY_TP_ADDR; |
5134 | } | |
81a76618 | 5135 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 5136 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 5137 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
5138 | match->flow.nw_proto == IPPROTO_UDP || |
5139 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 5140 | may_match |= MAY_TP_ADDR; |
81a76618 | 5141 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 5142 | may_match |= MAY_TP_ADDR; |
81a76618 | 5143 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 5144 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 5145 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
5146 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
5147 | } | |
5148 | } | |
8087f5ff MM |
5149 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
5150 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 5151 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
5152 | } else if (eth_type_mpls(match->flow.dl_type)) { |
5153 | may_match = MAY_MPLS; | |
1c0b7503 | 5154 | } else { |
b459a924 BP |
5155 | may_match = 0; |
5156 | } | |
5157 | ||
5158 | /* Clear the fields that may not be matched. */ | |
81a76618 | 5159 | wc = match->wc; |
b459a924 | 5160 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 5161 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
5162 | } |
5163 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 5164 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
5165 | } |
5166 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 5167 | wc.masks.nw_proto = 0; |
b459a924 | 5168 | } |
9e44d715 | 5169 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
5170 | wc.masks.nw_tos = 0; |
5171 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
5172 | } |
5173 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 5174 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
5175 | } |
5176 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 5177 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 5178 | } |
d78477ec | 5179 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
5180 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
5181 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
5182 | } |
5183 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 5184 | wc.masks.nd_target = in6addr_any; |
b459a924 | 5185 | } |
b02475c5 SH |
5186 | if (!(may_match & MAY_MPLS)) { |
5187 | wc.masks.mpls_lse = htonl(0); | |
b02475c5 | 5188 | } |
b459a924 BP |
5189 | |
5190 | /* Log any changes. */ | |
81a76618 | 5191 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 5192 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 5193 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 5194 | |
81a76618 BP |
5195 | match->wc = wc; |
5196 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
5197 | |
5198 | if (log) { | |
81a76618 | 5199 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
5200 | VLOG_INFO("normalization changed ofp_match, details:"); |
5201 | VLOG_INFO(" pre: %s", pre); | |
5202 | VLOG_INFO("post: %s", post); | |
5203 | free(pre); | |
5204 | free(post); | |
5205 | } | |
fa37b408 | 5206 | } |
3f09c339 | 5207 | } |
26c112c2 | 5208 | |
81a76618 | 5209 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
5210 | * |
5211 | * 1. If the type of level N is known, then only the valid fields for that | |
5212 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 5213 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 5214 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 5215 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5216 | * IPv4 flow. |
5217 | * | |
5218 | * 2. If the type of level N is not known (or not understood by Open | |
5219 | * vSwitch), then no fields at all for that level may be specified. For | |
5220 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 5221 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5222 | * SCTP flow. |
5223 | * | |
81a76618 | 5224 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
5225 | * message. */ |
5226 | void | |
81a76618 | 5227 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 5228 | { |
81a76618 | 5229 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
5230 | } |
5231 | ||
81a76618 BP |
5232 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
5233 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
5234 | * sense for use on flows received from elsewhere (so that a bug in the program |
5235 | * that sent them can be reported and corrected). */ | |
5236 | void | |
81a76618 | 5237 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 5238 | { |
81a76618 | 5239 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
5240 | } |
5241 | ||
0ff22822 BP |
5242 | /* Parses a key or a key-value pair from '*stringp'. |
5243 | * | |
5244 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
5245 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
5246 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
5247 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
5248 | * terminators. Returns true. | |
5249 | * | |
5250 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
5251 | * NULL and returns false. */ | |
5252 | bool | |
5253 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
5254 | { | |
5255 | char *pos, *key, *value; | |
5256 | size_t key_len; | |
5257 | ||
5258 | pos = *stringp; | |
5259 | pos += strspn(pos, ", \t\r\n"); | |
5260 | if (*pos == '\0') { | |
5261 | *keyp = *valuep = NULL; | |
5262 | return false; | |
5263 | } | |
5264 | ||
5265 | key = pos; | |
5266 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
5267 | if (key[key_len] == ':' || key[key_len] == '=') { | |
5268 | /* The value can be separated by a colon. */ | |
5269 | size_t value_len; | |
5270 | ||
5271 | value = key + key_len + 1; | |
5272 | value_len = strcspn(value, ", \t\r\n"); | |
5273 | pos = value + value_len + (value[value_len] != '\0'); | |
5274 | value[value_len] = '\0'; | |
5275 | } else if (key[key_len] == '(') { | |
5276 | /* The value can be surrounded by balanced parentheses. The outermost | |
5277 | * set of parentheses is removed. */ | |
5278 | int level = 1; | |
5279 | size_t value_len; | |
5280 | ||
5281 | value = key + key_len + 1; | |
5282 | for (value_len = 0; level > 0; value_len++) { | |
5283 | switch (value[value_len]) { | |
5284 | case '\0': | |
33cadc50 BP |
5285 | level = 0; |
5286 | break; | |
0ff22822 BP |
5287 | |
5288 | case '(': | |
5289 | level++; | |
5290 | break; | |
5291 | ||
5292 | case ')': | |
5293 | level--; | |
5294 | break; | |
5295 | } | |
5296 | } | |
5297 | value[value_len - 1] = '\0'; | |
5298 | pos = value + value_len; | |
5299 | } else { | |
5300 | /* There might be no value at all. */ | |
5301 | value = key + key_len; /* Will become the empty string below. */ | |
5302 | pos = key + key_len + (key[key_len] != '\0'); | |
5303 | } | |
5304 | key[key_len] = '\0'; | |
5305 | ||
5306 | *stringp = pos; | |
5307 | *keyp = key; | |
5308 | *valuep = value; | |
5309 | return true; | |
5310 | } | |
f8e4867e SH |
5311 | |
5312 | /* Encode a dump ports request for 'port', the encoded message | |
2e1ae200 | 5313 | * will be for Open Flow version 'ofp_version'. Returns message |
f8e4867e SH |
5314 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
5315 | struct ofpbuf * | |
4e022ec0 | 5316 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
5317 | { |
5318 | struct ofpbuf *request; | |
5319 | ||
5320 | switch (ofp_version) { | |
5321 | case OFP10_VERSION: { | |
5322 | struct ofp10_port_stats_request *req; | |
5323 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
5324 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 5325 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
5326 | break; |
5327 | } | |
5328 | case OFP11_VERSION: | |
2e1ae200 JR |
5329 | case OFP12_VERSION: |
5330 | case OFP13_VERSION: { | |
f8e4867e SH |
5331 | struct ofp11_port_stats_request *req; |
5332 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
5333 | req = ofpbuf_put_zeros(request, sizeof *req); | |
5334 | req->port_no = ofputil_port_to_ofp11(port); | |
5335 | break; | |
5336 | } | |
5337 | default: | |
5338 | NOT_REACHED(); | |
5339 | } | |
5340 | ||
5341 | return request; | |
5342 | } | |
5343 | ||
5344 | static void | |
5345 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
5346 | struct ofp10_port_stats *ps10) | |
5347 | { | |
4e022ec0 | 5348 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
5349 | memset(ps10->pad, 0, sizeof ps10->pad); |
5350 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
5351 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
5352 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
5353 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
5354 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
5355 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
5356 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
5357 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
5358 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
5359 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
5360 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
5361 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
5362 | } | |
5363 | ||
5364 | static void | |
5365 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
5366 | struct ofp11_port_stats *ps11) | |
5367 | { | |
5368 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
5369 | memset(ps11->pad, 0, sizeof ps11->pad); | |
5370 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
5371 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
5372 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
5373 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
5374 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
5375 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
5376 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
5377 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
5378 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
5379 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
5380 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
5381 | ps11->collisions = htonll(ops->stats.collisions); | |
5382 | } | |
5383 | ||
2e1ae200 JR |
5384 | static void |
5385 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
5386 | struct ofp13_port_stats *ps13) | |
5387 | { | |
5388 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
5389 | ps13->duration_sec = htonl(ops->duration_sec); |
5390 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
5391 | } |
5392 | ||
5393 | ||
ad4c35fe | 5394 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e SH |
5395 | void |
5396 | ofputil_append_port_stat(struct list *replies, | |
5397 | const struct ofputil_port_stats *ops) | |
5398 | { | |
5399 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
5400 | struct ofp_header *oh = msg->data; | |
5401 | ||
5402 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
5403 | case OFP13_VERSION: { |
5404 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5405 | ofputil_port_stats_to_ofp13(ops, reply); | |
5406 | break; | |
5407 | } | |
f8e4867e SH |
5408 | case OFP12_VERSION: |
5409 | case OFP11_VERSION: { | |
5410 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5411 | ofputil_port_stats_to_ofp11(ops, reply); | |
5412 | break; | |
5413 | } | |
5414 | ||
5415 | case OFP10_VERSION: { | |
5416 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5417 | ofputil_port_stats_to_ofp10(ops, reply); | |
5418 | break; | |
5419 | } | |
5420 | ||
5421 | default: | |
5422 | NOT_REACHED(); | |
5423 | } | |
5424 | } | |
5425 | ||
5426 | static enum ofperr | |
5427 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
5428 | const struct ofp10_port_stats *ps10) | |
5429 | { | |
5430 | memset(ops, 0, sizeof *ops); | |
5431 | ||
4e022ec0 | 5432 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
5433 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
5434 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
5435 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
5436 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
5437 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
5438 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
5439 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
5440 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
5441 | ops->stats.rx_frame_errors = | |
5442 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
5443 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
5444 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
5445 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 5446 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
5447 | |
5448 | return 0; | |
5449 | } | |
5450 | ||
5451 | static enum ofperr | |
5452 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
5453 | const struct ofp11_port_stats *ps11) | |
5454 | { | |
5455 | enum ofperr error; | |
5456 | ||
5457 | memset(ops, 0, sizeof *ops); | |
5458 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
5459 | if (error) { | |
5460 | return error; | |
5461 | } | |
5462 | ||
5463 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
5464 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
5465 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
5466 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
5467 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
5468 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
5469 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
5470 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
5471 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
5472 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
5473 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
5474 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 5475 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
5476 | |
5477 | return 0; | |
5478 | } | |
5479 | ||
2e1ae200 JR |
5480 | static enum ofperr |
5481 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
5482 | const struct ofp13_port_stats *ps13) | |
5483 | { | |
65e0be10 | 5484 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 5485 | if (!error) { |
65e0be10 BP |
5486 | ops->duration_sec = ntohl(ps13->duration_sec); |
5487 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 5488 | } |
2e1ae200 JR |
5489 | return error; |
5490 | } | |
5491 | ||
be0c30df BP |
5492 | static size_t |
5493 | ofputil_get_port_stats_size(enum ofp_version ofp_version) | |
5494 | { | |
5495 | switch (ofp_version) { | |
5496 | case OFP10_VERSION: | |
5497 | return sizeof(struct ofp10_port_stats); | |
5498 | case OFP11_VERSION: | |
5499 | case OFP12_VERSION: | |
5500 | return sizeof(struct ofp11_port_stats); | |
5501 | case OFP13_VERSION: | |
5502 | return sizeof(struct ofp13_port_stats); | |
5503 | default: | |
5504 | NOT_REACHED(); | |
5505 | } | |
5506 | } | |
2e1ae200 | 5507 | |
f8e4867e SH |
5508 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
5509 | * message 'oh'. */ | |
5510 | size_t | |
5511 | ofputil_count_port_stats(const struct ofp_header *oh) | |
5512 | { | |
5513 | struct ofpbuf b; | |
5514 | ||
5515 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5516 | ofpraw_pull_assert(&b); | |
5517 | ||
be0c30df | 5518 | return b.size / ofputil_get_port_stats_size(oh->version); |
f8e4867e SH |
5519 | } |
5520 | ||
5521 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
5522 | * ofputil_port_stats in 'ps'. | |
5523 | * | |
5524 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
5525 | * message. Calling this function multiple times for a single 'msg' iterates | |
5526 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
5527 | * null and not modify them between calls. | |
5528 | * | |
5529 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
5530 | * otherwise a positive errno value. */ | |
5531 | int | |
5532 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
5533 | { | |
5534 | enum ofperr error; | |
5535 | enum ofpraw raw; | |
5536 | ||
5537 | error = (msg->l2 | |
5538 | ? ofpraw_decode(&raw, msg->l2) | |
5539 | : ofpraw_pull(&raw, msg)); | |
5540 | if (error) { | |
5541 | return error; | |
5542 | } | |
5543 | ||
5544 | if (!msg->size) { | |
5545 | return EOF; | |
2e1ae200 JR |
5546 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
5547 | const struct ofp13_port_stats *ps13; | |
5548 | ||
5549 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
5550 | if (!ps13) { | |
5551 | goto bad_len; | |
5552 | } | |
5553 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
5554 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
5555 | const struct ofp11_port_stats *ps11; | |
5556 | ||
5557 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
5558 | if (!ps11) { | |
2e1ae200 | 5559 | goto bad_len; |
f8e4867e SH |
5560 | } |
5561 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
5562 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
5563 | const struct ofp10_port_stats *ps10; | |
5564 | ||
5565 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
5566 | if (!ps10) { | |
2e1ae200 | 5567 | goto bad_len; |
f8e4867e SH |
5568 | } |
5569 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
5570 | } else { | |
5571 | NOT_REACHED(); | |
5572 | } | |
5573 | ||
2e1ae200 JR |
5574 | bad_len: |
5575 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %zu leftover " | |
5576 | "bytes at end", msg->size); | |
5577 | return OFPERR_OFPBRC_BAD_LEN; | |
f8e4867e SH |
5578 | } |
5579 | ||
5580 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
5581 | * port number and stores the latter in '*ofp10_port'. | |
5582 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
5583 | enum ofperr | |
5584 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 5585 | ofp_port_t *ofp10_port) |
f8e4867e SH |
5586 | { |
5587 | switch ((enum ofp_version)request->version) { | |
2e1ae200 | 5588 | case OFP13_VERSION: |
f8e4867e SH |
5589 | case OFP12_VERSION: |
5590 | case OFP11_VERSION: { | |
5591 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
5592 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
5593 | } | |
5594 | ||
5595 | case OFP10_VERSION: { | |
5596 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 5597 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
5598 | return 0; |
5599 | } | |
5600 | ||
5601 | default: | |
5602 | NOT_REACHED(); | |
5603 | } | |
5604 | } | |
64626975 | 5605 | |
7395c052 NZ |
5606 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
5607 | void | |
5608 | ofputil_bucket_list_destroy(struct list *buckets) | |
5609 | { | |
5610 | struct ofputil_bucket *bucket, *next_bucket; | |
5611 | ||
5612 | LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) { | |
5613 | list_remove(&bucket->list_node); | |
5614 | free(bucket->ofpacts); | |
5615 | free(bucket); | |
5616 | } | |
5617 | } | |
5618 | ||
5619 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', | |
5620 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
5621 | * for all groups.) | |
5622 | * | |
5623 | * Group statistics include packet and byte counts for each group. */ | |
5624 | struct ofpbuf * | |
5625 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
5626 | uint32_t group_id) | |
5627 | { | |
5628 | struct ofpbuf *request; | |
5629 | ||
5630 | switch (ofp_version) { | |
5631 | case OFP10_VERSION: | |
5632 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
5633 | "(\'-O OpenFlow11\')"); | |
5634 | case OFP11_VERSION: | |
5635 | case OFP12_VERSION: | |
5636 | case OFP13_VERSION: { | |
5637 | struct ofp11_group_stats_request *req; | |
5638 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
5639 | req = ofpbuf_put_zeros(request, sizeof *req); | |
5640 | req->group_id = htonl(group_id); | |
5641 | break; | |
5642 | } | |
5643 | default: | |
5644 | NOT_REACHED(); | |
5645 | } | |
5646 | ||
5647 | return request; | |
5648 | } | |
5649 | ||
5650 | /* Returns an OpenFlow group description request for OpenFlow version | |
5651 | * 'ofp_version', that requests stats for group 'group_id'. (Use OFPG_ALL to | |
5652 | * request stats for all groups.) | |
5653 | * | |
5654 | * Group descriptions include the bucket and action configuration for each | |
5655 | * group. */ | |
5656 | struct ofpbuf * | |
5657 | ofputil_encode_group_desc_request(enum ofp_version ofp_version) | |
5658 | { | |
5659 | struct ofpbuf *request; | |
5660 | ||
5661 | switch (ofp_version) { | |
5662 | case OFP10_VERSION: | |
5663 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
5664 | "(\'-O OpenFlow11\')"); | |
5665 | case OFP11_VERSION: | |
5666 | case OFP12_VERSION: | |
5667 | case OFP13_VERSION: { | |
5668 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, ofp_version, 0); | |
5669 | break; | |
5670 | } | |
5671 | default: | |
5672 | NOT_REACHED(); | |
5673 | } | |
5674 | ||
5675 | return request; | |
5676 | } | |
5677 | ||
5678 | static void * | |
5679 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *ogs, | |
5680 | size_t base_len, struct list *replies) | |
5681 | { | |
5682 | struct ofp11_bucket_counter *bc11; | |
5683 | struct ofp11_group_stats *gs11; | |
5684 | size_t length; | |
5685 | int i; | |
5686 | ||
5687 | length = base_len + sizeof(struct ofp11_bucket_counter) * ogs->n_buckets; | |
5688 | ||
5689 | gs11 = ofpmp_append(replies, length); | |
5690 | memset(gs11, 0, base_len); | |
5691 | gs11->length = htons(length); | |
5692 | gs11->group_id = htonl(ogs->group_id); | |
5693 | gs11->ref_count = htonl(ogs->ref_count); | |
5694 | gs11->packet_count = htonll(ogs->packet_count); | |
5695 | gs11->byte_count = htonll(ogs->byte_count); | |
5696 | ||
5697 | bc11 = (void *) (((uint8_t *) gs11) + base_len); | |
5698 | for (i = 0; i < ogs->n_buckets; i++) { | |
5699 | const struct bucket_counter *obc = &ogs->bucket_stats[i]; | |
5700 | ||
5701 | bc11[i].packet_count = htonll(obc->packet_count); | |
5702 | bc11[i].byte_count = htonll(obc->byte_count); | |
5703 | } | |
5704 | ||
5705 | return gs11; | |
5706 | } | |
5707 | ||
5708 | static void | |
5709 | ofputil_append_of13_group_stats(const struct ofputil_group_stats *ogs, | |
5710 | struct list *replies) | |
5711 | { | |
5712 | struct ofp13_group_stats *gs13; | |
5713 | ||
5714 | gs13 = ofputil_group_stats_to_ofp11(ogs, sizeof *gs13, replies); | |
5715 | gs13->duration_sec = htonl(ogs->duration_sec); | |
5716 | gs13->duration_nsec = htonl(ogs->duration_nsec); | |
5717 | } | |
5718 | ||
5719 | /* Encodes 'ogs' properly for the format of the list of group statistics | |
5720 | * replies already begun in 'replies' and appends it to the list. 'replies' | |
5721 | * must have originally been initialized with ofpmp_init(). */ | |
5722 | void | |
5723 | ofputil_append_group_stats(struct list *replies, | |
5724 | const struct ofputil_group_stats *ogs) | |
5725 | { | |
5726 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
5727 | struct ofp_header *oh = msg->data; | |
5728 | ||
5729 | switch ((enum ofp_version)oh->version) { | |
5730 | case OFP11_VERSION: | |
5731 | case OFP12_VERSION: | |
5732 | ofputil_group_stats_to_ofp11(ogs, sizeof(struct ofp11_group_stats), | |
5733 | replies); | |
5734 | break; | |
5735 | ||
5736 | case OFP13_VERSION: | |
5737 | ofputil_append_of13_group_stats(ogs, replies); | |
5738 | break; | |
5739 | ||
5740 | case OFP10_VERSION: | |
5741 | default: | |
5742 | NOT_REACHED(); | |
5743 | } | |
5744 | } | |
5745 | ||
5746 | /* Returns an OpenFlow group features request for OpenFlow version | |
5747 | * 'ofp_version'. */ | |
5748 | struct ofpbuf * | |
5749 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
5750 | { | |
5751 | struct ofpbuf *request = NULL; | |
5752 | ||
5753 | switch (ofp_version) { | |
5754 | case OFP10_VERSION: | |
5755 | case OFP11_VERSION: | |
5756 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
5757 | "(\'-O OpenFlow12\')"); | |
5758 | case OFP12_VERSION: | |
5759 | case OFP13_VERSION: { | |
5760 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, | |
5761 | ofp_version, 0); | |
5762 | break; | |
5763 | } | |
5764 | default: | |
5765 | NOT_REACHED(); | |
5766 | } | |
5767 | ||
5768 | return request; | |
5769 | } | |
5770 | ||
5771 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
5772 | * group features request 'request'. */ | |
5773 | struct ofpbuf * | |
5774 | ofputil_encode_group_features_reply( | |
5775 | const struct ofputil_group_features *features, | |
5776 | const struct ofp_header *request) | |
5777 | { | |
5778 | struct ofp12_group_features_stats *ogf; | |
5779 | struct ofpbuf *reply; | |
5780 | ||
5781 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
5782 | request->version, request->xid, 0); | |
5783 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
5784 | ogf->types = htonl(features->types); | |
5785 | ogf->capabilities = htonl(features->capabilities); | |
5786 | ogf->max_groups[0] = htonl(features->max_groups[0]); | |
5787 | ogf->max_groups[1] = htonl(features->max_groups[1]); | |
5788 | ogf->max_groups[2] = htonl(features->max_groups[2]); | |
5789 | ogf->max_groups[3] = htonl(features->max_groups[3]); | |
5790 | ogf->actions[0] = htonl(features->actions[0]); | |
5791 | ogf->actions[1] = htonl(features->actions[1]); | |
5792 | ogf->actions[2] = htonl(features->actions[2]); | |
5793 | ogf->actions[3] = htonl(features->actions[3]); | |
5794 | ||
5795 | return reply; | |
5796 | } | |
5797 | ||
5798 | /* Decodes group features reply 'oh' into 'features'. */ | |
5799 | void | |
5800 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
5801 | struct ofputil_group_features *features) | |
5802 | { | |
5803 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
5804 | ||
5805 | features->types = ntohl(ogf->types); | |
5806 | features->capabilities = ntohl(ogf->capabilities); | |
5807 | features->max_groups[0] = ntohl(ogf->max_groups[0]); | |
5808 | features->max_groups[1] = ntohl(ogf->max_groups[1]); | |
5809 | features->max_groups[2] = ntohl(ogf->max_groups[2]); | |
5810 | features->max_groups[3] = ntohl(ogf->max_groups[3]); | |
5811 | features->actions[0] = ntohl(ogf->actions[0]); | |
5812 | features->actions[1] = ntohl(ogf->actions[1]); | |
5813 | features->actions[2] = ntohl(ogf->actions[2]); | |
5814 | features->actions[3] = ntohl(ogf->actions[3]); | |
5815 | } | |
5816 | ||
5817 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
5818 | * group ID and stores the latter in '*group_id'. | |
5819 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
5820 | enum ofperr | |
5821 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
5822 | uint32_t *group_id) | |
5823 | { | |
5824 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
5825 | *group_id = ntohl(gsr11->group_id); | |
5826 | return 0; | |
5827 | } | |
5828 | ||
5829 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
5830 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
5831 | * caller to eventually free. | |
7395c052 NZ |
5832 | * |
5833 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
5834 | * Calling this function multiple times for a single 'msg' iterates through the | |
5835 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
5836 | * not modify them between calls. | |
5837 | * | |
5838 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
5839 | * otherwise a positive errno value. */ | |
5840 | int | |
5841 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
5842 | struct ofputil_group_stats *gs) | |
5843 | { | |
5844 | struct ofp11_bucket_counter *obc; | |
5845 | struct ofp11_group_stats *ogs11; | |
5846 | enum ofpraw raw; | |
5847 | enum ofperr error; | |
5848 | size_t base_len; | |
5849 | size_t length; | |
5850 | size_t i; | |
5851 | ||
646b2a9c | 5852 | gs->bucket_stats = NULL; |
7395c052 NZ |
5853 | error = (msg->l2 |
5854 | ? ofpraw_decode(&raw, msg->l2) | |
5855 | : ofpraw_pull(&raw, msg)); | |
5856 | if (error) { | |
5857 | return error; | |
5858 | } | |
5859 | ||
5860 | if (!msg->size) { | |
5861 | return EOF; | |
5862 | } | |
5863 | ||
5864 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
5865 | base_len = sizeof *ogs11; | |
5866 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
5867 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
5868 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
5869 | struct ofp13_group_stats *ogs13; | |
5870 | ||
5871 | base_len = sizeof *ogs13; | |
5872 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
5873 | if (ogs13) { | |
5874 | ogs11 = &ogs13->gs; | |
5875 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
5876 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
5877 | } else { | |
5878 | ogs11 = NULL; | |
5879 | } | |
5880 | } else { | |
5881 | NOT_REACHED(); | |
5882 | } | |
5883 | ||
5884 | if (!ogs11) { | |
5885 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end", | |
5886 | ofpraw_get_name(raw), msg->size); | |
5887 | return OFPERR_OFPBRC_BAD_LEN; | |
5888 | } | |
5889 | length = ntohs(ogs11->length); | |
5890 | if (length < sizeof base_len) { | |
5891 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %zu", | |
5892 | ofpraw_get_name(raw), length); | |
5893 | return OFPERR_OFPBRC_BAD_LEN; | |
5894 | } | |
5895 | ||
5896 | gs->group_id = ntohl(ogs11->group_id); | |
5897 | gs->ref_count = ntohl(ogs11->ref_count); | |
5898 | gs->packet_count = ntohll(ogs11->packet_count); | |
5899 | gs->byte_count = ntohll(ogs11->byte_count); | |
5900 | ||
5901 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
5902 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
5903 | if (!obc) { | |
5904 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end", | |
5905 | ofpraw_get_name(raw), msg->size); | |
5906 | return OFPERR_OFPBRC_BAD_LEN; | |
5907 | } | |
5908 | ||
646b2a9c | 5909 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
5910 | for (i = 0; i < gs->n_buckets; i++) { |
5911 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
5912 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
5913 | } | |
5914 | ||
5915 | return 0; | |
5916 | } | |
5917 | ||
5918 | /* Appends a group stats reply that contains the data in 'gds' to those already | |
5919 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
5920 | * initialized with ofpmp_init(). */ | |
5921 | void | |
5922 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
5923 | struct list *buckets, | |
5924 | struct list *replies) | |
5925 | { | |
5926 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
5927 | struct ofp11_group_desc_stats *ogds; | |
5928 | struct ofputil_bucket *bucket; | |
5929 | size_t start_ogds; | |
5930 | ||
5931 | start_ogds = reply->size; | |
5932 | ofpbuf_put_zeros(reply, sizeof *ogds); | |
5933 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5934 | struct ofp11_bucket *ob; | |
5935 | size_t start_ob; | |
5936 | ||
5937 | start_ob = reply->size; | |
5938 | ofpbuf_put_zeros(reply, sizeof *ob); | |
5939 | ofpacts_put_openflow11_actions(bucket->ofpacts, | |
5940 | bucket->ofpacts_len, reply); | |
5941 | ||
5942 | ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob); | |
5943 | ob->len = htons(reply->size - start_ob); | |
5944 | ob->weight = htons(bucket->weight); | |
5945 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
5946 | ob->watch_group = htonl(bucket->watch_group); | |
5947 | } | |
5948 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
5949 | ogds->length = htons(reply->size - start_ogds); | |
5950 | ogds->type = gds->type; | |
5951 | ogds->group_id = htonl(gds->group_id); | |
5952 | ||
5953 | ofpmp_postappend(replies, start_ogds); | |
5954 | } | |
5955 | ||
5956 | static enum ofperr | |
a7a2d006 JS |
5957 | ofputil_pull_buckets(struct ofpbuf *msg, enum ofp_version version, |
5958 | size_t buckets_length, struct list *buckets) | |
7395c052 NZ |
5959 | { |
5960 | struct ofp11_bucket *ob; | |
5961 | ||
5962 | list_init(buckets); | |
5963 | while (buckets_length > 0) { | |
5964 | struct ofputil_bucket *bucket; | |
5965 | struct ofpbuf ofpacts; | |
5966 | enum ofperr error; | |
5967 | size_t ob_len; | |
5968 | ||
5969 | ob = (buckets_length >= sizeof *ob | |
5970 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
5971 | : NULL); | |
5972 | if (!ob) { | |
5973 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %zu leftover bytes", | |
5974 | buckets_length); | |
5975 | } | |
5976 | ||
5977 | ob_len = ntohs(ob->len); | |
5978 | if (ob_len < sizeof *ob) { | |
5979 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
5980 | "%zu is not valid", ob_len); | |
5981 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
5982 | } else if (ob_len > buckets_length) { | |
5983 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
5984 | "%zu exceeds remaining buckets data size %zu", | |
5985 | ob_len, buckets_length); | |
5986 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
5987 | } | |
5988 | buckets_length -= ob_len; | |
5989 | ||
5990 | ofpbuf_init(&ofpacts, 0); | |
a7a2d006 JS |
5991 | error = ofpacts_pull_openflow11_actions(msg, version, |
5992 | ob_len - sizeof *ob, &ofpacts); | |
7395c052 NZ |
5993 | if (error) { |
5994 | ofpbuf_uninit(&ofpacts); | |
5995 | ofputil_bucket_list_destroy(buckets); | |
5996 | return error; | |
5997 | } | |
5998 | ||
5999 | bucket = xzalloc(sizeof *bucket); | |
6000 | bucket->weight = ntohs(ob->weight); | |
6001 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
6002 | if (error) { | |
6003 | ofpbuf_uninit(&ofpacts); | |
6004 | ofputil_bucket_list_destroy(buckets); | |
6005 | return OFPERR_OFPGMFC_BAD_WATCH; | |
6006 | } | |
6007 | bucket->watch_group = ntohl(ob->watch_group); | |
6008 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6009 | bucket->ofpacts_len = ofpacts.size; | |
6010 | list_push_back(buckets, &bucket->list_node); | |
6011 | } | |
6012 | ||
6013 | return 0; | |
6014 | } | |
6015 | ||
6016 | /* Converts a group description reply in 'msg' into an abstract | |
6017 | * ofputil_group_desc in 'gd'. | |
6018 | * | |
6019 | * Multiple group description replies can be packed into a single OpenFlow | |
6020 | * message. Calling this function multiple times for a single 'msg' iterates | |
6021 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6022 | * null and not modify them between calls. | |
6023 | * | |
6024 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6025 | * otherwise a positive errno value. */ | |
6026 | int | |
6027 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
a7a2d006 | 6028 | struct ofpbuf *msg, enum ofp_version version) |
7395c052 NZ |
6029 | { |
6030 | struct ofp11_group_desc_stats *ogds; | |
6031 | size_t length; | |
6032 | ||
6033 | if (!msg->l2) { | |
6034 | ofpraw_pull_assert(msg); | |
6035 | } | |
6036 | ||
6037 | if (!msg->size) { | |
6038 | return EOF; | |
6039 | } | |
6040 | ||
6041 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
6042 | if (!ogds) { | |
6043 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %zu " | |
6044 | "leftover bytes at end", msg->size); | |
6045 | return OFPERR_OFPBRC_BAD_LEN; | |
6046 | } | |
6047 | gd->type = ogds->type; | |
6048 | gd->group_id = ntohl(ogds->group_id); | |
6049 | ||
6050 | length = ntohs(ogds->length); | |
6051 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { | |
6052 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
6053 | "length %zu", length); | |
6054 | return OFPERR_OFPBRC_BAD_LEN; | |
6055 | } | |
6056 | ||
a7a2d006 JS |
6057 | return ofputil_pull_buckets(msg, version, length - sizeof *ogds, |
6058 | &gd->buckets); | |
7395c052 NZ |
6059 | } |
6060 | ||
6061 | /* Converts abstract group mod 'gm' into a message for OpenFlow version | |
6062 | * 'ofp_version' and returns the message. */ | |
6063 | struct ofpbuf * | |
6064 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
6065 | const struct ofputil_group_mod *gm) | |
6066 | { | |
6067 | struct ofpbuf *b; | |
6068 | struct ofp11_group_mod *ogm; | |
6069 | size_t start_ogm; | |
6070 | size_t start_bucket; | |
6071 | struct ofputil_bucket *bucket; | |
6072 | struct ofp11_bucket *ob; | |
6073 | ||
6074 | switch (ofp_version) { | |
6075 | case OFP10_VERSION: { | |
6076 | if (gm->command == OFPGC11_ADD) { | |
6077 | ovs_fatal(0, "add-group needs OpenFlow 1.1 or later " | |
6078 | "(\'-O OpenFlow11\')"); | |
6079 | } else if (gm->command == OFPGC11_MODIFY) { | |
6080 | ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later " | |
6081 | "(\'-O OpenFlow11\')"); | |
6082 | } else { | |
6083 | ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later " | |
6084 | "(\'-O OpenFlow11\')"); | |
6085 | } | |
6086 | } | |
6087 | ||
6088 | case OFP11_VERSION: | |
6089 | case OFP12_VERSION: | |
6090 | case OFP13_VERSION: { | |
6091 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); | |
6092 | start_ogm = b->size; | |
6093 | ofpbuf_put_uninit(b, sizeof *ogm); | |
6094 | ||
6095 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
6096 | start_bucket = b->size; | |
6097 | ofpbuf_put_uninit(b, sizeof *ob); | |
6098 | if (bucket->ofpacts && bucket->ofpacts_len) { | |
6099 | ofpacts_put_openflow11_actions(bucket->ofpacts, | |
6100 | bucket->ofpacts_len, b); | |
6101 | } | |
6102 | ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob); | |
6103 | ob->len = htons(b->size - start_bucket);; | |
6104 | ob->weight = htons(bucket->weight); | |
6105 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
6106 | ob->watch_group = htonl(bucket->watch_group); | |
6107 | } | |
6108 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
6109 | ogm->command = htons(gm->command); | |
6110 | ogm->type = gm->type; | |
6111 | ogm->pad = 0; | |
6112 | ogm->group_id = htonl(gm->group_id); | |
6113 | ||
6114 | break; | |
6115 | } | |
6116 | ||
6117 | default: | |
6118 | NOT_REACHED(); | |
6119 | } | |
6120 | ||
6121 | return b; | |
6122 | } | |
6123 | ||
6124 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in | |
6125 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
6126 | enum ofperr | |
6127 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
6128 | struct ofputil_group_mod *gm) | |
6129 | { | |
6130 | const struct ofp11_group_mod *ogm; | |
6131 | struct ofpbuf msg; | |
6132 | ||
6133 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
6134 | ofpraw_pull_assert(&msg); | |
6135 | ||
6136 | ogm = ofpbuf_pull(&msg, sizeof *ogm); | |
6137 | gm->command = ntohs(ogm->command); | |
6138 | gm->type = ogm->type; | |
6139 | gm->group_id = ntohl(ogm->group_id); | |
6140 | ||
a7a2d006 | 6141 | return ofputil_pull_buckets(&msg, oh->version, msg.size, &gm->buckets); |
7395c052 NZ |
6142 | } |
6143 | ||
64626975 SH |
6144 | /* Parse a queue status request message into 'oqsr'. |
6145 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6146 | enum ofperr | |
6147 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
6148 | struct ofputil_queue_stats_request *oqsr) | |
6149 | { | |
6150 | switch ((enum ofp_version)request->version) { | |
2e1ae200 | 6151 | case OFP13_VERSION: |
64626975 SH |
6152 | case OFP12_VERSION: |
6153 | case OFP11_VERSION: { | |
6154 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
6155 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
6156 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
6157 | } | |
6158 | ||
6159 | case OFP10_VERSION: { | |
7f05e7ab JR |
6160 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
6161 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 6162 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
6163 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
6164 | if (oqsr->port_no == OFPP_ALL) { | |
6165 | oqsr->port_no = OFPP_ANY; | |
6166 | } | |
64626975 SH |
6167 | return 0; |
6168 | } | |
6169 | ||
6170 | default: | |
6171 | NOT_REACHED(); | |
6172 | } | |
6173 | } | |
6174 | ||
6175 | /* Encode a queue statsrequest for 'oqsr', the encoded message | |
6176 | * will be fore Open Flow version 'ofp_version'. Returns message | |
6177 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ | |
6178 | struct ofpbuf * | |
6179 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
6180 | const struct ofputil_queue_stats_request *oqsr) | |
6181 | { | |
6182 | struct ofpbuf *request; | |
6183 | ||
6184 | switch (ofp_version) { | |
6185 | case OFP11_VERSION: | |
2e1ae200 JR |
6186 | case OFP12_VERSION: |
6187 | case OFP13_VERSION: { | |
64626975 SH |
6188 | struct ofp11_queue_stats_request *req; |
6189 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
6190 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6191 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
6192 | req->queue_id = htonl(oqsr->queue_id); | |
6193 | break; | |
6194 | } | |
6195 | case OFP10_VERSION: { | |
6196 | struct ofp10_queue_stats_request *req; | |
6197 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
6198 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 6199 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
6200 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
6201 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
6202 | req->queue_id = htonl(oqsr->queue_id); |
6203 | break; | |
6204 | } | |
6205 | default: | |
6206 | NOT_REACHED(); | |
6207 | } | |
6208 | ||
6209 | return request; | |
6210 | } | |
6211 | ||
be0c30df BP |
6212 | static size_t |
6213 | ofputil_get_queue_stats_size(enum ofp_version ofp_version) | |
6214 | { | |
6215 | switch (ofp_version) { | |
6216 | case OFP10_VERSION: | |
6217 | return sizeof(struct ofp10_queue_stats); | |
6218 | case OFP11_VERSION: | |
6219 | case OFP12_VERSION: | |
6220 | return sizeof(struct ofp11_queue_stats); | |
6221 | case OFP13_VERSION: | |
6222 | return sizeof(struct ofp13_queue_stats); | |
6223 | default: | |
6224 | NOT_REACHED(); | |
6225 | } | |
6226 | } | |
6227 | ||
64626975 SH |
6228 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY |
6229 | * message 'oh'. */ | |
6230 | size_t | |
6231 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
6232 | { | |
6233 | struct ofpbuf b; | |
6234 | ||
6235 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6236 | ofpraw_pull_assert(&b); | |
6237 | ||
be0c30df | 6238 | return b.size / ofputil_get_queue_stats_size(oh->version); |
64626975 SH |
6239 | } |
6240 | ||
6241 | static enum ofperr | |
6242 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
6243 | const struct ofp10_queue_stats *qs10) | |
6244 | { | |
4e022ec0 | 6245 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 6246 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
6247 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
6248 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
6249 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
6250 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6251 | |
6252 | return 0; | |
6253 | } | |
6254 | ||
6255 | static enum ofperr | |
6256 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
6257 | const struct ofp11_queue_stats *qs11) | |
6258 | { | |
6259 | enum ofperr error; | |
6260 | ||
6261 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
6262 | if (error) { | |
6263 | return error; | |
6264 | } | |
6265 | ||
6266 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
6267 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
6268 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
6269 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
6270 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6271 | |
6272 | return 0; | |
6273 | } | |
6274 | ||
2e1ae200 JR |
6275 | static enum ofperr |
6276 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
6277 | const struct ofp13_queue_stats *qs13) | |
6278 | { | |
6dc34a0d | 6279 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 6280 | if (!error) { |
6dc34a0d BP |
6281 | oqs->duration_sec = ntohl(qs13->duration_sec); |
6282 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
6283 | } |
6284 | ||
6285 | return error; | |
6286 | } | |
6287 | ||
64626975 SH |
6288 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
6289 | * ofputil_queue_stats in 'qs'. | |
6290 | * | |
6291 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
6292 | * message. Calling this function multiple times for a single 'msg' iterates | |
6293 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6294 | * null and not modify them between calls. | |
6295 | * | |
6296 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6297 | * otherwise a positive errno value. */ | |
6298 | int | |
6299 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
6300 | { | |
6301 | enum ofperr error; | |
6302 | enum ofpraw raw; | |
6303 | ||
6304 | error = (msg->l2 | |
6305 | ? ofpraw_decode(&raw, msg->l2) | |
6306 | : ofpraw_pull(&raw, msg)); | |
6307 | if (error) { | |
6308 | return error; | |
6309 | } | |
6310 | ||
6311 | if (!msg->size) { | |
6312 | return EOF; | |
2e1ae200 JR |
6313 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
6314 | const struct ofp13_queue_stats *qs13; | |
6315 | ||
6316 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
6317 | if (!qs13) { | |
6318 | goto bad_len; | |
6319 | } | |
6320 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
6321 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
6322 | const struct ofp11_queue_stats *qs11; | |
6323 | ||
6324 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
6325 | if (!qs11) { | |
2e1ae200 | 6326 | goto bad_len; |
64626975 SH |
6327 | } |
6328 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
6329 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
6330 | const struct ofp10_queue_stats *qs10; | |
6331 | ||
6332 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
6333 | if (!qs10) { | |
2e1ae200 | 6334 | goto bad_len; |
64626975 SH |
6335 | } |
6336 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
6337 | } else { | |
6338 | NOT_REACHED(); | |
6339 | } | |
2e1ae200 JR |
6340 | |
6341 | bad_len: | |
6342 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %zu leftover " | |
6343 | "bytes at end", msg->size); | |
6344 | return OFPERR_OFPBRC_BAD_LEN; | |
64626975 SH |
6345 | } |
6346 | ||
6347 | static void | |
6348 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
6349 | struct ofp10_queue_stats *qs10) | |
6350 | { | |
4e022ec0 | 6351 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
6352 | memset(qs10->pad, 0, sizeof qs10->pad); |
6353 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6354 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
6355 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
6356 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
6357 | } |
6358 | ||
6359 | static void | |
6360 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
6361 | struct ofp11_queue_stats *qs11) | |
6362 | { | |
6363 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
6364 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6365 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
6366 | qs11->tx_packets = htonll(oqs->tx_packets); | |
6367 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
6368 | } |
6369 | ||
2e1ae200 JR |
6370 | static void |
6371 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
6372 | struct ofp13_queue_stats *qs13) | |
6373 | { | |
6374 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
6375 | if (oqs->duration_sec != UINT32_MAX) { |
6376 | qs13->duration_sec = htonl(oqs->duration_sec); | |
6377 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
6378 | } else { | |
b8266395 BP |
6379 | qs13->duration_sec = OVS_BE32_MAX; |
6380 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 6381 | } |
2e1ae200 JR |
6382 | } |
6383 | ||
64626975 SH |
6384 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
6385 | void | |
6386 | ofputil_append_queue_stat(struct list *replies, | |
6387 | const struct ofputil_queue_stats *oqs) | |
6388 | { | |
6389 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6390 | struct ofp_header *oh = msg->data; | |
6391 | ||
6392 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
6393 | case OFP13_VERSION: { |
6394 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6395 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
6396 | break; | |
6397 | } | |
6398 | ||
64626975 SH |
6399 | case OFP12_VERSION: |
6400 | case OFP11_VERSION: { | |
2e1ae200 | 6401 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
6402 | ofputil_queue_stats_to_ofp11(oqs, reply); |
6403 | break; | |
6404 | } | |
6405 | ||
6406 | case OFP10_VERSION: { | |
2e1ae200 | 6407 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
6408 | ofputil_queue_stats_to_ofp10(oqs, reply); |
6409 | break; | |
6410 | } | |
6411 | ||
6412 | default: | |
6413 | NOT_REACHED(); | |
6414 | } | |
6415 | } |