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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)) { |
097d4939 JR |
439 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
440 | match_set_mpls_label(match, ofmatch->mpls_label); | |
441 | } | |
442 | if (!(wc & OFPFW11_MPLS_TC)) { | |
443 | match_set_mpls_tc(match, ofmatch->mpls_tc); | |
410698cf BP |
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 | ||
097d4939 JR |
536 | if (!(match->wc.masks.mpls_lse & htonl(MPLS_LABEL_MASK))) { |
537 | wc |= OFPFW11_MPLS_LABEL; | |
538 | } else { | |
539 | ofmatch->mpls_label = htonl(mpls_lse_to_label(match->flow.mpls_lse)); | |
540 | } | |
541 | ||
542 | if (!(match->wc.masks.mpls_lse & htonl(MPLS_TC_MASK))) { | |
543 | wc |= OFPFW11_MPLS_TC; | |
544 | } else { | |
545 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse); | |
546 | } | |
410698cf | 547 | |
81a76618 BP |
548 | ofmatch->metadata = match->flow.metadata; |
549 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 550 | |
81a76618 | 551 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
552 | } |
553 | ||
75fa58f8 BP |
554 | /* Returns the "typical" length of a match for 'protocol', for use in |
555 | * estimating space to preallocate. */ | |
556 | int | |
557 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
558 | { | |
559 | switch (protocol) { | |
560 | case OFPUTIL_P_OF10_STD: | |
561 | case OFPUTIL_P_OF10_STD_TID: | |
562 | return sizeof(struct ofp10_match); | |
563 | ||
564 | case OFPUTIL_P_OF10_NXM: | |
565 | case OFPUTIL_P_OF10_NXM_TID: | |
566 | return NXM_TYPICAL_LEN; | |
567 | ||
568 | case OFPUTIL_P_OF11_STD: | |
569 | return sizeof(struct ofp11_match); | |
570 | ||
571 | case OFPUTIL_P_OF12_OXM: | |
572 | case OFPUTIL_P_OF13_OXM: | |
573 | return NXM_TYPICAL_LEN; | |
574 | ||
575 | default: | |
576 | NOT_REACHED(); | |
577 | } | |
578 | } | |
579 | ||
580 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
581 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
582 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
583 | * in OpenFlow 1.1 or later. | |
584 | * | |
585 | * This function can cause 'b''s data to be reallocated. | |
586 | * | |
587 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
588 | * returns zero. */ | |
589 | int | |
590 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
591 | enum ofputil_protocol protocol) | |
592 | { | |
593 | switch (protocol) { | |
594 | case OFPUTIL_P_OF10_STD: | |
595 | case OFPUTIL_P_OF10_STD_TID: | |
596 | case OFPUTIL_P_OF10_NXM: | |
597 | case OFPUTIL_P_OF10_NXM_TID: | |
598 | NOT_REACHED(); | |
599 | ||
600 | case OFPUTIL_P_OF11_STD: { | |
601 | struct ofp11_match *om; | |
602 | ||
603 | /* Make sure that no padding is needed. */ | |
604 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
605 | ||
606 | om = ofpbuf_put_uninit(b, sizeof *om); | |
607 | ofputil_match_to_ofp11_match(match, om); | |
608 | return sizeof *om; | |
609 | } | |
610 | ||
611 | case OFPUTIL_P_OF12_OXM: | |
612 | case OFPUTIL_P_OF13_OXM: | |
613 | return oxm_put_match(b, match); | |
614 | } | |
615 | ||
616 | NOT_REACHED(); | |
617 | } | |
618 | ||
36956a7d | 619 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
620 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
621 | * structure. */ | |
36956a7d BP |
622 | ovs_be16 |
623 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
624 | { | |
625 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
626 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
627 | : flow_dl_type); | |
628 | } | |
629 | ||
eec25dc1 | 630 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
631 | * structure, returns the corresponding 'dl_type' value for use in struct |
632 | * flow. */ | |
633 | ovs_be16 | |
634 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
635 | { | |
636 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
637 | ? htons(FLOW_DL_TYPE_NONE) | |
638 | : ofp_dl_type); | |
639 | } | |
2e4f5fcf | 640 | \f |
27527aa0 | 641 | /* Protocols. */ |
7fa91113 | 642 | |
27527aa0 BP |
643 | struct proto_abbrev { |
644 | enum ofputil_protocol protocol; | |
645 | const char *name; | |
646 | }; | |
647 | ||
648 | /* Most users really don't care about some of the differences between | |
649 | * protocols. These abbreviations help with that. */ | |
650 | static const struct proto_abbrev proto_abbrevs[] = { | |
85813857 BP |
651 | { OFPUTIL_P_ANY, "any" }, |
652 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
6d2c051a | 653 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, |
e71bff1b | 654 | { OFPUTIL_P_ANY_OXM, "OXM" }, |
27527aa0 BP |
655 | }; |
656 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
657 | ||
658 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
2e1ae200 | 659 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 660 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 661 | OFPUTIL_P_OF11_STD, |
85813857 BP |
662 | OFPUTIL_P_OF10_NXM, |
663 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
664 | }; |
665 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
666 | ||
4f13da56 BP |
667 | /* Returns the set of ofputil_protocols that are supported with the given |
668 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
669 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
670 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 671 | enum ofputil_protocol |
4f13da56 | 672 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
673 | { |
674 | switch (version) { | |
2e3fa633 | 675 | case OFP10_VERSION: |
4f13da56 | 676 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
677 | case OFP11_VERSION: |
678 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 679 | case OFP12_VERSION: |
85813857 | 680 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
681 | case OFP13_VERSION: |
682 | return OFPUTIL_P_OF13_OXM; | |
2e3fa633 SH |
683 | default: |
684 | return 0; | |
27527aa0 BP |
685 | } |
686 | } | |
687 | ||
4f13da56 BP |
688 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
689 | * connection that has negotiated the given 'version'. 'version' should | |
690 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
691 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
692 | * outside the valid range. */ | |
693 | enum ofputil_protocol | |
694 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
695 | { | |
696 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
697 | } | |
698 | ||
44d3732d | 699 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 700 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 701 | enum ofp_version |
9e1fd49b BP |
702 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
703 | { | |
704 | switch (protocol) { | |
85813857 BP |
705 | case OFPUTIL_P_OF10_STD: |
706 | case OFPUTIL_P_OF10_STD_TID: | |
707 | case OFPUTIL_P_OF10_NXM: | |
708 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 709 | return OFP10_VERSION; |
75fa58f8 BP |
710 | case OFPUTIL_P_OF11_STD: |
711 | return OFP11_VERSION; | |
85813857 | 712 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 713 | return OFP12_VERSION; |
2e1ae200 JR |
714 | case OFPUTIL_P_OF13_OXM: |
715 | return OFP13_VERSION; | |
9e1fd49b BP |
716 | } |
717 | ||
718 | NOT_REACHED(); | |
719 | } | |
720 | ||
4f13da56 BP |
721 | /* Returns a bitmap of OpenFlow versions that are supported by at |
722 | * least one of the 'protocols'. */ | |
723 | uint32_t | |
724 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
725 | { | |
726 | uint32_t bitmap = 0; | |
727 | ||
728 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
729 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
730 | ||
731 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
732 | } | |
733 | ||
734 | return bitmap; | |
735 | } | |
736 | ||
737 | /* Returns the set of protocols that are supported on top of the | |
738 | * OpenFlow versions included in 'bitmap'. */ | |
739 | enum ofputil_protocol | |
740 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
741 | { | |
742 | enum ofputil_protocol protocols = 0; | |
743 | ||
744 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
745 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
746 | ||
747 | protocols |= ofputil_protocols_from_ofp_version(version); | |
748 | } | |
749 | ||
750 | return protocols; | |
751 | } | |
752 | ||
27527aa0 BP |
753 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
754 | * otherwise. */ | |
7fa91113 | 755 | bool |
27527aa0 | 756 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 757 | { |
27527aa0 BP |
758 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
759 | } | |
760 | ||
761 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
762 | * extension turned on or off if 'enable' is true or false, respectively. | |
763 | * | |
764 | * This extension is only useful for protocols whose "standard" version does | |
765 | * not allow specific tables to be modified. In particular, this is true of | |
766 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
767 | * specifies a table ID and so there is no need for such an extension. When | |
768 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
769 | * extension, this function just returns its 'protocol' argument unchanged | |
770 | * regardless of the value of 'enable'. */ | |
771 | enum ofputil_protocol | |
772 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
773 | { | |
774 | switch (protocol) { | |
85813857 BP |
775 | case OFPUTIL_P_OF10_STD: |
776 | case OFPUTIL_P_OF10_STD_TID: | |
777 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 778 | |
85813857 BP |
779 | case OFPUTIL_P_OF10_NXM: |
780 | case OFPUTIL_P_OF10_NXM_TID: | |
781 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 782 | |
75fa58f8 BP |
783 | case OFPUTIL_P_OF11_STD: |
784 | return OFPUTIL_P_OF11_STD; | |
785 | ||
85813857 BP |
786 | case OFPUTIL_P_OF12_OXM: |
787 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 788 | |
2e1ae200 JR |
789 | case OFPUTIL_P_OF13_OXM: |
790 | return OFPUTIL_P_OF13_OXM; | |
791 | ||
27527aa0 BP |
792 | default: |
793 | NOT_REACHED(); | |
7fa91113 | 794 | } |
27527aa0 | 795 | } |
7fa91113 | 796 | |
27527aa0 BP |
797 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
798 | * some extension to a standard protocol version, the return value is the | |
799 | * standard version of that protocol without any extension. If 'protocol' is a | |
800 | * standard protocol version, returns 'protocol' unchanged. */ | |
801 | enum ofputil_protocol | |
802 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
803 | { | |
804 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
805 | } |
806 | ||
27527aa0 BP |
807 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
808 | enum ofputil_protocol | |
809 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
810 | enum ofputil_protocol new_base) | |
7fa91113 | 811 | { |
27527aa0 BP |
812 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
813 | ||
814 | switch (new_base) { | |
85813857 BP |
815 | case OFPUTIL_P_OF10_STD: |
816 | case OFPUTIL_P_OF10_STD_TID: | |
817 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 818 | |
85813857 BP |
819 | case OFPUTIL_P_OF10_NXM: |
820 | case OFPUTIL_P_OF10_NXM_TID: | |
821 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 822 | |
75fa58f8 BP |
823 | case OFPUTIL_P_OF11_STD: |
824 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
825 | ||
85813857 BP |
826 | case OFPUTIL_P_OF12_OXM: |
827 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 828 | |
2e1ae200 JR |
829 | case OFPUTIL_P_OF13_OXM: |
830 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
831 | ||
7fa91113 BP |
832 | default: |
833 | NOT_REACHED(); | |
834 | } | |
835 | } | |
836 | ||
27527aa0 BP |
837 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
838 | * 'protocol' is either a single protocol or it is a combination of protocols | |
839 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
840 | const char * | |
841 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 842 | { |
27527aa0 BP |
843 | const struct proto_abbrev *p; |
844 | ||
845 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
846 | * warning if we forget any. */ | |
847 | switch (protocol) { | |
85813857 | 848 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
849 | return "NXM-table_id"; |
850 | ||
85813857 | 851 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
852 | return "NXM+table_id"; |
853 | ||
85813857 | 854 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
855 | return "OpenFlow10-table_id"; |
856 | ||
85813857 | 857 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 858 | return "OpenFlow10+table_id"; |
44d3732d | 859 | |
75fa58f8 BP |
860 | case OFPUTIL_P_OF11_STD: |
861 | return "OpenFlow11"; | |
862 | ||
85813857 | 863 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 864 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
865 | |
866 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 867 | return "OXM-OpenFlow13"; |
27527aa0 BP |
868 | } |
869 | ||
870 | /* Check abbreviations. */ | |
871 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
872 | if (protocol == p->protocol) { | |
873 | return p->name; | |
874 | } | |
875 | } | |
876 | ||
877 | return NULL; | |
878 | } | |
879 | ||
880 | /* Returns a string that represents 'protocols'. The return value might be a | |
881 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
882 | * value is "none" if 'protocols' is 0. | |
883 | * | |
884 | * The caller must free the returned string (with free()). */ | |
885 | char * | |
886 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
887 | { | |
888 | struct ds s; | |
889 | ||
cb22974d | 890 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
891 | if (protocols == 0) { |
892 | return xstrdup("none"); | |
893 | } | |
894 | ||
895 | ds_init(&s); | |
896 | while (protocols) { | |
897 | const struct proto_abbrev *p; | |
898 | int i; | |
899 | ||
900 | if (s.length) { | |
901 | ds_put_char(&s, ','); | |
902 | } | |
903 | ||
904 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
905 | if ((protocols & p->protocol) == p->protocol) { | |
906 | ds_put_cstr(&s, p->name); | |
907 | protocols &= ~p->protocol; | |
908 | goto match; | |
909 | } | |
910 | } | |
911 | ||
912 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
913 | enum ofputil_protocol bit = 1u << i; | |
914 | ||
915 | if (protocols & bit) { | |
916 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
917 | protocols &= ~bit; | |
918 | goto match; | |
919 | } | |
920 | } | |
921 | NOT_REACHED(); | |
922 | ||
923 | match: ; | |
924 | } | |
925 | return ds_steal_cstr(&s); | |
926 | } | |
927 | ||
928 | static enum ofputil_protocol | |
929 | ofputil_protocol_from_string__(const char *s, size_t n) | |
930 | { | |
931 | const struct proto_abbrev *p; | |
932 | int i; | |
933 | ||
934 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
935 | enum ofputil_protocol bit = 1u << i; | |
936 | const char *name = ofputil_protocol_to_string(bit); | |
937 | ||
938 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
939 | return bit; | |
940 | } | |
941 | } | |
942 | ||
943 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
944 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
945 | return p->protocol; | |
946 | } | |
947 | } | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
952 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
953 | * single protocol name or abbreviation or a comma-separated list of them. | |
954 | * | |
955 | * Aborts the program with an error message if 's' is invalid. */ | |
956 | enum ofputil_protocol | |
957 | ofputil_protocols_from_string(const char *s) | |
958 | { | |
959 | const char *orig_s = s; | |
960 | enum ofputil_protocol protocols; | |
961 | ||
962 | protocols = 0; | |
963 | while (*s) { | |
964 | enum ofputil_protocol p; | |
965 | size_t n; | |
966 | ||
967 | n = strcspn(s, ","); | |
968 | if (n == 0) { | |
969 | s++; | |
970 | continue; | |
971 | } | |
972 | ||
973 | p = ofputil_protocol_from_string__(s, n); | |
974 | if (!p) { | |
975 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
976 | } | |
977 | protocols |= p; | |
978 | ||
979 | s += n; | |
980 | } | |
981 | ||
982 | if (!protocols) { | |
983 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
984 | } | |
985 | return protocols; | |
88ca35ee BP |
986 | } |
987 | ||
7beaa082 | 988 | static int |
03e1125c SH |
989 | ofputil_version_from_string(const char *s) |
990 | { | |
991 | if (!strcasecmp(s, "OpenFlow10")) { | |
992 | return OFP10_VERSION; | |
993 | } | |
994 | if (!strcasecmp(s, "OpenFlow11")) { | |
995 | return OFP11_VERSION; | |
996 | } | |
997 | if (!strcasecmp(s, "OpenFlow12")) { | |
998 | return OFP12_VERSION; | |
999 | } | |
2e1ae200 JR |
1000 | if (!strcasecmp(s, "OpenFlow13")) { |
1001 | return OFP13_VERSION; | |
1002 | } | |
7beaa082 | 1003 | return 0; |
03e1125c SH |
1004 | } |
1005 | ||
1006 | static bool | |
e091ef84 | 1007 | is_delimiter(unsigned char c) |
03e1125c SH |
1008 | { |
1009 | return isspace(c) || c == ','; | |
1010 | } | |
1011 | ||
1012 | uint32_t | |
1013 | ofputil_versions_from_string(const char *s) | |
1014 | { | |
1015 | size_t i = 0; | |
1016 | uint32_t bitmap = 0; | |
1017 | ||
1018 | while (s[i]) { | |
1019 | size_t j; | |
7beaa082 | 1020 | int version; |
03e1125c SH |
1021 | char *key; |
1022 | ||
1023 | if (is_delimiter(s[i])) { | |
1024 | i++; | |
1025 | continue; | |
1026 | } | |
1027 | j = 0; | |
1028 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1029 | j++; | |
1030 | } | |
1031 | key = xmemdup0(s + i, j); | |
1032 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1033 | if (!version) { |
1034 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1035 | } | |
03e1125c SH |
1036 | free(key); |
1037 | bitmap |= 1u << version; | |
1038 | i += j; | |
1039 | } | |
1040 | ||
1041 | return bitmap; | |
1042 | } | |
1043 | ||
7beaa082 SH |
1044 | uint32_t |
1045 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1046 | { | |
1047 | uint32_t bitmap = 0; | |
1048 | ||
1049 | while (count--) { | |
1050 | int version = ofputil_version_from_string(s[count]); | |
1051 | if (!version) { | |
1052 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1053 | } else { | |
1054 | bitmap |= 1u << version; | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | return bitmap; | |
1059 | } | |
1060 | ||
03e1125c SH |
1061 | const char * |
1062 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1063 | { | |
1064 | switch (ofp_version) { | |
1065 | case OFP10_VERSION: | |
1066 | return "OpenFlow10"; | |
1067 | case OFP11_VERSION: | |
1068 | return "OpenFlow11"; | |
1069 | case OFP12_VERSION: | |
1070 | return "OpenFlow12"; | |
2e1ae200 JR |
1071 | case OFP13_VERSION: |
1072 | return "OpenFlow13"; | |
03e1125c SH |
1073 | default: |
1074 | NOT_REACHED(); | |
1075 | } | |
1076 | } | |
1077 | ||
54834960 EJ |
1078 | bool |
1079 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1080 | { | |
1081 | switch (packet_in_format) { | |
1082 | case NXPIF_OPENFLOW10: | |
1083 | case NXPIF_NXM: | |
1084 | return true; | |
1085 | } | |
1086 | ||
1087 | return false; | |
1088 | } | |
1089 | ||
1090 | const char * | |
1091 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1092 | { | |
1093 | switch (packet_in_format) { | |
1094 | case NXPIF_OPENFLOW10: | |
1095 | return "openflow10"; | |
1096 | case NXPIF_NXM: | |
1097 | return "nxm"; | |
1098 | default: | |
1099 | NOT_REACHED(); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | int | |
1104 | ofputil_packet_in_format_from_string(const char *s) | |
1105 | { | |
1106 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1107 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1108 | : -1); | |
1109 | } | |
1110 | ||
03e1125c SH |
1111 | void |
1112 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1113 | { | |
8989046d | 1114 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1115 | } |
1116 | ||
1117 | void | |
1118 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1119 | { | |
1120 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1121 | } | |
1122 | ||
1123 | static void | |
1124 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1125 | void (*format_version)(struct ds *msg, | |
1126 | enum ofp_version)) | |
1127 | { | |
1128 | while (bitmap) { | |
1129 | format_version(msg, raw_ctz(bitmap)); | |
1130 | bitmap = zero_rightmost_1bit(bitmap); | |
1131 | if (bitmap) { | |
1132 | ds_put_cstr(msg, ", "); | |
1133 | } | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | void | |
1138 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1139 | { | |
1140 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1141 | } | |
1142 | ||
1143 | void | |
1144 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1145 | { | |
1146 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1147 | } | |
1148 | ||
de6c85b0 SH |
1149 | static bool |
1150 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1151 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1152 | { |
1153 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1154 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1155 | uint32_t allowed_versions; |
de6c85b0 SH |
1156 | |
1157 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1158 | return false; | |
1159 | } | |
1160 | ||
1161 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1162 | * current implementation supports. Subsequent elements are ignored which | |
1163 | * should have no effect on session negotiation until Open vSwtich supports | |
1164 | * wire-protocol versions greater than 31. | |
1165 | */ | |
0935de41 | 1166 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1167 | |
0935de41 | 1168 | if (allowed_versions & 1) { |
de6c85b0 SH |
1169 | /* There's no OpenFlow version 0. */ |
1170 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1171 | "version 0x00"); | |
0935de41 | 1172 | allowed_versions &= ~1u; |
de6c85b0 SH |
1173 | } |
1174 | ||
0935de41 | 1175 | if (!allowed_versions) { |
de6c85b0 SH |
1176 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1177 | "version (between 0x01 and 0x1f)"); | |
1178 | return false; | |
1179 | } | |
1180 | ||
0935de41 | 1181 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1182 | return true; |
1183 | } | |
1184 | ||
1185 | static uint32_t | |
1186 | version_bitmap_from_version(uint8_t ofp_version) | |
1187 | { | |
1188 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1189 | } | |
1190 | ||
1191 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1192 | * the set of OpenFlow versions for which 'oh' announces support. | |
1193 | * | |
1194 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1195 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1196 | * returns false if 'oh' contains some data that could not be fully understood, | |
1197 | * true if 'oh' was completely parsed. */ | |
1198 | bool | |
1199 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1200 | { | |
1201 | struct ofpbuf msg; | |
1202 | bool ok = true; | |
1203 | ||
1204 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1205 | ofpbuf_pull(&msg, sizeof *oh); | |
1206 | ||
1207 | *allowed_versions = version_bitmap_from_version(oh->version); | |
1208 | while (msg.size) { | |
1209 | const struct ofp_hello_elem_header *oheh; | |
1210 | unsigned int len; | |
1211 | ||
1212 | if (msg.size < sizeof *oheh) { | |
1213 | return false; | |
1214 | } | |
1215 | ||
1216 | oheh = msg.data; | |
1217 | len = ntohs(oheh->length); | |
1218 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1219 | return false; | |
1220 | } | |
1221 | ||
1222 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1223 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1224 | ok = false; | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | return ok; | |
1229 | } | |
1230 | ||
1231 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1232 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1233 | static bool |
de6c85b0 SH |
1234 | should_send_version_bitmap(uint32_t allowed_versions) |
1235 | { | |
1236 | return !is_pow2((allowed_versions >> 1) + 1); | |
1237 | } | |
1238 | ||
1239 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1240 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1241 | struct ofpbuf * | |
1242 | ofputil_encode_hello(uint32_t allowed_versions) | |
1243 | { | |
1244 | enum ofp_version ofp_version; | |
1245 | struct ofpbuf *msg; | |
1246 | ||
1247 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1248 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1249 | ||
1250 | if (should_send_version_bitmap(allowed_versions)) { | |
1251 | struct ofp_hello_elem_header *oheh; | |
1252 | uint16_t map_len; | |
1253 | ||
74c4b9c1 | 1254 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1255 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1256 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1257 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1258 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1259 | |
1260 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1261 | } |
1262 | ||
1263 | return msg; | |
1264 | } | |
1265 | ||
27527aa0 BP |
1266 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1267 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1268 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1269 | * connection if the switch processes the returned message correctly. (If | |
1270 | * '*next != want' then the caller will have to iterate.) | |
1271 | * | |
e43928f2 BP |
1272 | * If 'current == want', or if it is not possible to transition from 'current' |
1273 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1274 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1275 | struct ofpbuf * |
1276 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1277 | enum ofputil_protocol want, | |
1278 | enum ofputil_protocol *next) | |
1279 | { | |
e43928f2 | 1280 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1281 | enum ofputil_protocol cur_base, want_base; |
1282 | bool cur_tid, want_tid; | |
1283 | ||
e43928f2 BP |
1284 | cur_version = ofputil_protocol_to_ofp_version(current); |
1285 | want_version = ofputil_protocol_to_ofp_version(want); | |
1286 | if (cur_version != want_version) { | |
1287 | *next = current; | |
1288 | return NULL; | |
1289 | } | |
1290 | ||
27527aa0 BP |
1291 | cur_base = ofputil_protocol_to_base(current); |
1292 | want_base = ofputil_protocol_to_base(want); | |
1293 | if (cur_base != want_base) { | |
1294 | *next = ofputil_protocol_set_base(current, want_base); | |
1295 | ||
1296 | switch (want_base) { | |
85813857 | 1297 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1298 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1299 | ||
85813857 | 1300 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1301 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1302 | ||
75fa58f8 | 1303 | case OFPUTIL_P_OF11_STD: |
85813857 | 1304 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1305 | case OFPUTIL_P_OF13_OXM: |
75fa58f8 | 1306 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1307 | * verified above that we're not trying to change versions. */ |
310f3699 | 1308 | NOT_REACHED(); |
44d3732d | 1309 | |
85813857 BP |
1310 | case OFPUTIL_P_OF10_STD_TID: |
1311 | case OFPUTIL_P_OF10_NXM_TID: | |
27527aa0 BP |
1312 | NOT_REACHED(); |
1313 | } | |
1314 | } | |
1315 | ||
1316 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1317 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1318 | if (cur_tid != want_tid) { | |
1319 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1320 | return ofputil_make_flow_mod_table_id(want_tid); | |
1321 | } | |
1322 | ||
cb22974d | 1323 | ovs_assert(current == want); |
27527aa0 BP |
1324 | |
1325 | *next = current; | |
1326 | return NULL; | |
88ca35ee BP |
1327 | } |
1328 | ||
27527aa0 BP |
1329 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1330 | * format to 'nxff'. */ | |
88ca35ee | 1331 | struct ofpbuf * |
27527aa0 | 1332 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1333 | { |
73dbf4ab | 1334 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1335 | struct ofpbuf *msg; |
1336 | ||
cb22974d | 1337 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1338 | |
982697a4 BP |
1339 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1340 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1341 | sff->format = htonl(nxff); |
88ca35ee BP |
1342 | |
1343 | return msg; | |
1344 | } | |
1345 | ||
27527aa0 BP |
1346 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1347 | * otherwise. */ | |
1348 | enum ofputil_protocol | |
1349 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1350 | { | |
1351 | switch (flow_format) { | |
1352 | case NXFF_OPENFLOW10: | |
85813857 | 1353 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1354 | |
1355 | case NXFF_NXM: | |
85813857 | 1356 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1357 | |
1358 | default: | |
1359 | return 0; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1364 | bool | |
1365 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1366 | { | |
1367 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1368 | } | |
1369 | ||
1370 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1371 | * value. */ | |
1372 | const char * | |
1373 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1374 | { | |
1375 | switch (flow_format) { | |
1376 | case NXFF_OPENFLOW10: | |
1377 | return "openflow10"; | |
1378 | case NXFF_NXM: | |
1379 | return "nxm"; | |
1380 | default: | |
1381 | NOT_REACHED(); | |
1382 | } | |
1383 | } | |
1384 | ||
54834960 | 1385 | struct ofpbuf * |
3f4a1939 SH |
1386 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1387 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1388 | { |
73dbf4ab | 1389 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1390 | struct ofpbuf *msg; |
1391 | ||
3f4a1939 | 1392 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1393 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1394 | spif->format = htonl(packet_in_format); |
1395 | ||
1396 | return msg; | |
1397 | } | |
1398 | ||
6c1491fb BP |
1399 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1400 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1401 | struct ofpbuf * | |
1402 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1403 | { | |
73dbf4ab | 1404 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1405 | struct ofpbuf *msg; |
1406 | ||
982697a4 BP |
1407 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1408 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1409 | nfmti->set = flow_mod_table_id; |
1410 | return msg; | |
1411 | } | |
1412 | ||
0fb88c18 BP |
1413 | struct ofputil_flow_mod_flag { |
1414 | uint16_t raw_flag; | |
1415 | enum ofp_version min_version, max_version; | |
1416 | enum ofputil_flow_mod_flags flag; | |
1417 | }; | |
1418 | ||
1419 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1420 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1421 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1422 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1423 | OFPUTIL_FF_EMERG }, | |
1424 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1425 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1426 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1427 | { 0, 0, 0, 0 }, | |
1428 | }; | |
1429 | ||
1430 | static enum ofperr | |
1431 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1432 | enum ofp_flow_mod_command command, | |
1433 | enum ofp_version version, | |
1434 | enum ofputil_flow_mod_flags *flagsp) | |
1435 | { | |
1436 | uint16_t raw_flags = ntohs(raw_flags_); | |
1437 | const struct ofputil_flow_mod_flag *f; | |
1438 | ||
1439 | *flagsp = 0; | |
1440 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1441 | if (raw_flags & f->raw_flag | |
1442 | && version >= f->min_version | |
1443 | && (!f->max_version || version <= f->max_version)) { | |
1444 | raw_flags &= ~f->raw_flag; | |
1445 | *flagsp |= f->flag; | |
1446 | } | |
1447 | } | |
1448 | ||
1449 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1450 | * never do. | |
1451 | * | |
1452 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1453 | * resets counters. */ | |
1454 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1455 | && command == OFPFC_ADD) { | |
1456 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1457 | } | |
1458 | ||
1459 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1460 | } | |
1461 | ||
1462 | static ovs_be16 | |
1463 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1464 | enum ofp_version version) | |
1465 | { | |
1466 | const struct ofputil_flow_mod_flag *f; | |
1467 | uint16_t raw_flags; | |
1468 | ||
1469 | raw_flags = 0; | |
1470 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1471 | if (f->flag & flags | |
1472 | && version >= f->min_version | |
1473 | && (!f->max_version || version <= f->max_version)) { | |
1474 | raw_flags |= f->raw_flag; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | return htons(raw_flags); | |
1479 | } | |
1480 | ||
7fa91113 BP |
1481 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1482 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1483 | * code. | |
1484 | * | |
f25d0cf3 BP |
1485 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1486 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1487 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1488 | * | |
1489 | * Does not validate the flow_mod actions. The caller should do that, with | |
1490 | * ofpacts_check(). */ | |
90bf1e07 | 1491 | enum ofperr |
a9a2da38 | 1492 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1493 | const struct ofp_header *oh, |
f25d0cf3 | 1494 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1495 | struct ofpbuf *ofpacts, |
1496 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1497 | { |
0fb88c18 BP |
1498 | ovs_be16 raw_flags; |
1499 | enum ofperr error; | |
2e4f5fcf | 1500 | struct ofpbuf b; |
982697a4 | 1501 | enum ofpraw raw; |
2e4f5fcf | 1502 | |
2013493b | 1503 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1504 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1505 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1506 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1507 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1508 | |
bbc32a88 | 1509 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1510 | |
81a76618 | 1511 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1512 | if (error) { |
1513 | return error; | |
1c0b7503 BP |
1514 | } |
1515 | ||
e3f8f887 JR |
1516 | error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version, |
1517 | ofpacts); | |
f25d0cf3 BP |
1518 | if (error) { |
1519 | return error; | |
1520 | } | |
1521 | ||
2e4f5fcf | 1522 | /* Translate the message. */ |
81a76618 | 1523 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1524 | if (ofm->command == OFPFC_ADD |
1525 | || (oh->version == OFP11_VERSION | |
1526 | && (ofm->command == OFPFC_MODIFY || | |
1527 | ofm->command == OFPFC_MODIFY_STRICT) | |
1528 | && ofm->cookie_mask == htonll(0))) { | |
1529 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1530 | * not match on the cookie is treated as an "add" if there is no | |
1531 | * match. */ | |
aa319503 BP |
1532 | fm->cookie = htonll(0); |
1533 | fm->cookie_mask = htonll(0); | |
1534 | fm->new_cookie = ofm->cookie; | |
1535 | } else { | |
aa319503 BP |
1536 | fm->cookie = ofm->cookie; |
1537 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1538 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1539 | } |
23342857 | 1540 | fm->modify_cookie = false; |
aa319503 | 1541 | fm->command = ofm->command; |
0e197060 BP |
1542 | |
1543 | /* Get table ID. | |
1544 | * | |
1545 | * OF1.1 entirely forbids table_id == 255. | |
1546 | * OF1.2+ allows table_id == 255 only for deletes. */ | |
aa319503 | 1547 | fm->table_id = ofm->table_id; |
0e197060 BP |
1548 | if (fm->table_id == 255 |
1549 | && (oh->version == OFP11_VERSION | |
1550 | || (ofm->command != OFPFC_DELETE && | |
1551 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1552 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1553 | } | |
1554 | ||
2e4f5fcf BP |
1555 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1556 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1557 | fm->buffer_id = ntohl(ofm->buffer_id); | |
aa319503 | 1558 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1559 | if (error) { |
1560 | return error; | |
1561 | } | |
7395c052 NZ |
1562 | fm->out_group = ntohl(ofm->out_group); |
1563 | ||
09861c3f JR |
1564 | if ((ofm->command == OFPFC_DELETE |
1565 | || ofm->command == OFPFC_DELETE_STRICT) | |
1566 | && ofm->out_group != htonl(OFPG_ANY)) { | |
fb9515e1 | 1567 | return OFPERR_OFPFMFC_UNKNOWN; |
2e4f5fcf | 1568 | } |
0fb88c18 | 1569 | raw_flags = ofm->flags; |
aa319503 | 1570 | } else { |
0fb88c18 BP |
1571 | uint16_t command; |
1572 | ||
aa319503 BP |
1573 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1574 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1575 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1576 | |
1577 | /* Get the ofp10_flow_mod. */ | |
1578 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1579 | ||
aa319503 | 1580 | /* Translate the rule. */ |
81a76618 BP |
1581 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1582 | ofputil_normalize_match(&fm->match); | |
aa319503 BP |
1583 | |
1584 | /* Now get the actions. */ | |
e3f8f887 JR |
1585 | error = ofpacts_pull_openflow_actions(&b, b.size, oh->version, |
1586 | ofpacts); | |
aa319503 BP |
1587 | if (error) { |
1588 | return error; | |
1589 | } | |
1590 | ||
81a76618 BP |
1591 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1592 | * highest possible priority. */ | |
1593 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1594 | ? ntohs(ofm->priority) | |
1595 | : UINT16_MAX); | |
1596 | ||
aa319503 BP |
1597 | /* Translate the message. */ |
1598 | command = ntohs(ofm->command); | |
1599 | fm->cookie = htonll(0); | |
1600 | fm->cookie_mask = htonll(0); | |
1601 | fm->new_cookie = ofm->cookie; | |
1602 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1603 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1604 | fm->buffer_id = ntohl(ofm->buffer_id); | |
4e022ec0 | 1605 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1606 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1607 | raw_flags = ofm->flags; |
aa319503 BP |
1608 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1609 | /* Nicira extended flow_mod. */ | |
1610 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1611 | |
1612 | /* Dissect the message. */ | |
1613 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1614 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1615 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1616 | if (error) { |
1617 | return error; | |
1618 | } | |
e3f8f887 JR |
1619 | error = ofpacts_pull_openflow_actions(&b, b.size, oh->version, |
1620 | ofpacts); | |
aa319503 BP |
1621 | if (error) { |
1622 | return error; | |
1623 | } | |
1624 | ||
1625 | /* Translate the message. */ | |
1626 | command = ntohs(nfm->command); | |
1627 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1628 | /* Flow additions may only set a new cookie, not match an | |
1629 | * existing cookie. */ | |
1630 | return OFPERR_NXBRC_NXM_INVALID; | |
1631 | } | |
81a76618 | 1632 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1633 | fm->new_cookie = nfm->cookie; |
1634 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1635 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
1636 | fm->buffer_id = ntohl(nfm->buffer_id); | |
4e022ec0 | 1637 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1638 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1639 | raw_flags = nfm->flags; |
aa319503 BP |
1640 | } else { |
1641 | NOT_REACHED(); | |
1642 | } | |
1643 | ||
b8266395 | 1644 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1645 | if (protocol & OFPUTIL_P_TID) { |
1646 | fm->command = command & 0xff; | |
1647 | fm->table_id = command >> 8; | |
1648 | } else { | |
1649 | fm->command = command; | |
1650 | fm->table_id = 0xff; | |
e729e793 | 1651 | } |
2e4f5fcf BP |
1652 | } |
1653 | ||
f25d0cf3 BP |
1654 | fm->ofpacts = ofpacts->data; |
1655 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1656 | |
0fb88c18 BP |
1657 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1658 | oh->version, &fm->flags); | |
1659 | if (error) { | |
1660 | return error; | |
1661 | } | |
1662 | ||
1663 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1664 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1665 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1666 | * | |
1667 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1668 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1669 | * code, so just state that the flow table is full. */ | |
1670 | return (fm->hard_timeout || fm->idle_timeout | |
1671 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1672 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1673 | } | |
1674 | ||
7e9f8266 BP |
1675 | return ofpacts_check(fm->ofpacts, fm->ofpacts_len, &fm->match.flow, |
1676 | oh->version > OFP10_VERSION, max_port, | |
1677 | fm->table_id, max_table); | |
2e4f5fcf BP |
1678 | } |
1679 | ||
638a19b0 JR |
1680 | static enum ofperr |
1681 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1682 | struct ofpbuf *bands) | |
1683 | { | |
1684 | const struct ofp13_meter_band_header *ombh; | |
1685 | struct ofputil_meter_band *mb; | |
1686 | uint16_t n = 0; | |
1687 | ||
1688 | ombh = ofpbuf_try_pull(msg, len); | |
1689 | if (!ombh) { | |
1690 | return OFPERR_OFPBRC_BAD_LEN; | |
1691 | } | |
1692 | ||
1693 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1694 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1695 | /* All supported band types have the same length. */ |
638a19b0 JR |
1696 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1697 | return OFPERR_OFPBRC_BAD_LEN; | |
1698 | } | |
1699 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1700 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1701 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1702 | return OFPERR_OFPMMFC_BAD_BAND; | |
1703 | } | |
638a19b0 JR |
1704 | mb->rate = ntohl(ombh->rate); |
1705 | mb->burst_size = ntohl(ombh->burst_size); | |
1706 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1707 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1708 | n++; | |
1709 | len -= ombh_len; | |
db5a1019 AW |
1710 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1711 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1712 | } |
1713 | if (len) { | |
1714 | return OFPERR_OFPBRC_BAD_LEN; | |
1715 | } | |
1716 | *n_bands = n; | |
1717 | return 0; | |
1718 | } | |
1719 | ||
1720 | enum ofperr | |
1721 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1722 | struct ofputil_meter_mod *mm, | |
1723 | struct ofpbuf *bands) | |
1724 | { | |
1725 | const struct ofp13_meter_mod *omm; | |
1726 | struct ofpbuf b; | |
1727 | ||
1728 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1729 | ofpraw_pull_assert(&b); | |
1730 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1731 | ||
1732 | /* Translate the message. */ | |
1733 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1734 | if (mm->command != OFPMC13_ADD && |
1735 | mm->command != OFPMC13_MODIFY && | |
1736 | mm->command != OFPMC13_DELETE) { | |
1737 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1738 | } | |
638a19b0 JR |
1739 | mm->meter.meter_id = ntohl(omm->meter_id); |
1740 | ||
1741 | if (mm->command == OFPMC13_DELETE) { | |
1742 | mm->meter.flags = 0; | |
1743 | mm->meter.n_bands = 0; | |
1744 | mm->meter.bands = NULL; | |
1745 | } else { | |
1746 | enum ofperr error; | |
1747 | ||
1748 | mm->meter.flags = ntohs(omm->flags); | |
1749 | mm->meter.bands = bands->data; | |
1750 | ||
0445637d | 1751 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1752 | if (error) { |
1753 | return error; | |
1754 | } | |
1755 | } | |
1756 | return 0; | |
1757 | } | |
1758 | ||
1759 | void | |
1760 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1761 | { | |
1762 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1763 | *meter_id = ntohl(omr->meter_id); | |
1764 | } | |
1765 | ||
1766 | struct ofpbuf * | |
1767 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1768 | enum ofputil_meter_request_type type, | |
1769 | uint32_t meter_id) | |
1770 | { | |
1771 | struct ofpbuf *msg; | |
1772 | ||
1773 | enum ofpraw raw; | |
1774 | ||
1775 | switch (type) { | |
1776 | case OFPUTIL_METER_CONFIG: | |
1777 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1778 | break; | |
1779 | case OFPUTIL_METER_STATS: | |
1780 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1781 | break; | |
1782 | default: | |
1783 | case OFPUTIL_METER_FEATURES: | |
1784 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1785 | break; | |
1786 | } | |
1787 | ||
1788 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1789 | ||
1790 | if (type != OFPUTIL_METER_FEATURES) { | |
1791 | struct ofp13_meter_multipart_request *omr; | |
1792 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1793 | omr->meter_id = htonl(meter_id); | |
1794 | } | |
1795 | return msg; | |
1796 | } | |
1797 | ||
1798 | static void | |
1799 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1800 | struct ofpbuf *msg) | |
1801 | { | |
1802 | uint16_t n = 0; | |
1803 | ||
1804 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1805 | /* Currently all band types have same size. */ |
638a19b0 JR |
1806 | struct ofp13_meter_band_dscp_remark *ombh; |
1807 | size_t ombh_len = sizeof *ombh; | |
1808 | ||
1809 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1810 | ||
1811 | ombh->type = htons(mb->type); | |
1812 | ombh->len = htons(ombh_len); | |
1813 | ombh->rate = htonl(mb->rate); | |
1814 | ombh->burst_size = htonl(mb->burst_size); | |
1815 | ombh->prec_level = mb->prec_level; | |
1816 | ||
1817 | mb++; | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1822 | void | |
1823 | ofputil_append_meter_config(struct list *replies, | |
1824 | const struct ofputil_meter_config *mc) | |
1825 | { | |
1826 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
1827 | size_t start_ofs = msg->size; | |
1828 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); | |
1829 | reply->flags = htons(mc->flags); | |
1830 | reply->meter_id = htonl(mc->meter_id); | |
1831 | ||
1832 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1833 | ||
1834 | reply->length = htons(msg->size - start_ofs); | |
1835 | ||
1836 | ofpmp_postappend(replies, start_ofs); | |
1837 | } | |
1838 | ||
1839 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1840 | void | |
1841 | ofputil_append_meter_stats(struct list *replies, | |
1842 | const struct ofputil_meter_stats *ms) | |
1843 | { | |
1844 | struct ofp13_meter_stats *reply; | |
1845 | uint16_t n = 0; | |
1846 | uint16_t len; | |
1847 | ||
1848 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1849 | reply = ofpmp_append(replies, len); | |
1850 | ||
1851 | reply->meter_id = htonl(ms->meter_id); | |
1852 | reply->len = htons(len); | |
1853 | memset(reply->pad, 0, sizeof reply->pad); | |
1854 | reply->flow_count = htonl(ms->flow_count); | |
1855 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1856 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1857 | reply->duration_sec = htonl(ms->duration_sec); | |
1858 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1859 | ||
1860 | for (n = 0; n < ms->n_bands; ++n) { | |
1861 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1862 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1863 | ||
1864 | dst->packet_band_count = htonll(src->packet_count); | |
1865 | dst->byte_band_count = htonll(src->byte_count); | |
1866 | } | |
1867 | } | |
1868 | ||
1869 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1870 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1871 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1872 | * it across the call. | |
1873 | * | |
1874 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1875 | * message. Calling this function multiple times for a single 'msg' iterates | |
1876 | * through the replies. 'bands' is cleared for each reply. | |
1877 | * | |
1878 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1879 | * otherwise a positive errno value. */ | |
1880 | int | |
1881 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1882 | struct ofputil_meter_config *mc, | |
1883 | struct ofpbuf *bands) | |
1884 | { | |
1885 | const struct ofp13_meter_config *omc; | |
1886 | enum ofperr err; | |
1887 | ||
1888 | /* Pull OpenFlow headers for the first call. */ | |
1889 | if (!msg->l2) { | |
1890 | ofpraw_pull_assert(msg); | |
1891 | } | |
1892 | ||
1893 | if (!msg->size) { | |
1894 | return EOF; | |
1895 | } | |
1896 | ||
1897 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1898 | if (!omc) { | |
0445637d JR |
1899 | VLOG_WARN_RL(&bad_ofmsg_rl, |
1900 | "OFPMP_METER_CONFIG reply has %zu leftover bytes at end", | |
1901 | msg->size); | |
638a19b0 JR |
1902 | return OFPERR_OFPBRC_BAD_LEN; |
1903 | } | |
1904 | ||
1905 | ofpbuf_clear(bands); | |
1906 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1907 | &mc->n_bands, bands); | |
1908 | if (err) { | |
1909 | return err; | |
1910 | } | |
1911 | mc->meter_id = ntohl(omc->meter_id); | |
1912 | mc->flags = ntohs(omc->flags); | |
1913 | mc->bands = bands->data; | |
1914 | ||
1915 | return 0; | |
1916 | } | |
1917 | ||
1918 | static enum ofperr | |
1919 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1920 | struct ofpbuf *bands) | |
1921 | { | |
1922 | const struct ofp13_meter_band_stats *ombs; | |
1923 | struct ofputil_meter_band_stats *mbs; | |
1924 | uint16_t n, i; | |
1925 | ||
0445637d JR |
1926 | ombs = ofpbuf_try_pull(msg, len); |
1927 | if (!ombs) { | |
1928 | return OFPERR_OFPBRC_BAD_LEN; | |
1929 | } | |
1930 | ||
638a19b0 JR |
1931 | n = len / sizeof *ombs; |
1932 | if (len != n * sizeof *ombs) { | |
1933 | return OFPERR_OFPBRC_BAD_LEN; | |
1934 | } | |
1935 | ||
638a19b0 JR |
1936 | mbs = ofpbuf_put_uninit(bands, len); |
1937 | ||
1938 | for (i = 0; i < n; ++i) { | |
1939 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
1940 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
1941 | } | |
1942 | *n_bands = n; | |
1943 | return 0; | |
1944 | } | |
1945 | ||
1946 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
1947 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
1948 | * decoded into 'bands'. | |
1949 | * | |
1950 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
1951 | * message. Calling this function multiple times for a single 'msg' iterates | |
1952 | * through the replies. 'bands' is cleared for each reply. | |
1953 | * | |
1954 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1955 | * otherwise a positive errno value. */ | |
1956 | int | |
1957 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
1958 | struct ofputil_meter_stats *ms, | |
1959 | struct ofpbuf *bands) | |
1960 | { | |
1961 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
1962 | enum ofperr err; |
1963 | ||
1964 | /* Pull OpenFlow headers for the first call. */ | |
1965 | if (!msg->l2) { | |
1966 | ofpraw_pull_assert(msg); | |
1967 | } | |
1968 | ||
1969 | if (!msg->size) { | |
1970 | return EOF; | |
1971 | } | |
1972 | ||
1973 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
1974 | if (!oms) { | |
0445637d JR |
1975 | VLOG_WARN_RL(&bad_ofmsg_rl, |
1976 | "OFPMP_METER reply has %zu leftover bytes at end", | |
1977 | msg->size); | |
638a19b0 JR |
1978 | return OFPERR_OFPBRC_BAD_LEN; |
1979 | } | |
638a19b0 JR |
1980 | |
1981 | ofpbuf_clear(bands); | |
0445637d JR |
1982 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
1983 | &ms->n_bands, bands); | |
638a19b0 JR |
1984 | if (err) { |
1985 | return err; | |
1986 | } | |
1987 | ms->meter_id = ntohl(oms->meter_id); | |
1988 | ms->flow_count = ntohl(oms->flow_count); | |
1989 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
1990 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
1991 | ms->duration_sec = ntohl(oms->duration_sec); | |
1992 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
1993 | ms->bands = bands->data; | |
1994 | ||
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | void | |
1999 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2000 | struct ofputil_meter_features *mf) | |
2001 | { | |
2002 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2003 | ||
2004 | mf->max_meters = ntohl(omf->max_meter); | |
2005 | mf->band_types = ntohl(omf->band_types); | |
2006 | mf->capabilities = ntohl(omf->capabilities); | |
2007 | mf->max_bands = omf->max_bands; | |
2008 | mf->max_color = omf->max_color; | |
2009 | } | |
2010 | ||
2011 | struct ofpbuf * | |
2012 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2013 | const struct ofp_header *request) | |
2014 | { | |
2015 | struct ofpbuf *reply; | |
2016 | struct ofp13_meter_features *omf; | |
2017 | ||
2018 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2019 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2020 | ||
2021 | omf->max_meter = htonl(mf->max_meters); | |
2022 | omf->band_types = htonl(mf->band_types); | |
2023 | omf->capabilities = htonl(mf->capabilities); | |
2024 | omf->max_bands = mf->max_bands; | |
2025 | omf->max_color = mf->max_color; | |
2026 | ||
2027 | return reply; | |
2028 | } | |
2029 | ||
2030 | struct ofpbuf * | |
2031 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2032 | const struct ofputil_meter_mod *mm) | |
2033 | { | |
2034 | struct ofpbuf *msg; | |
2035 | ||
2036 | struct ofp13_meter_mod *omm; | |
2037 | ||
2038 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2039 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2040 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2041 | omm->command = htons(mm->command); | |
2042 | if (mm->command != OFPMC13_DELETE) { | |
2043 | omm->flags = htons(mm->meter.flags); | |
2044 | } | |
2045 | omm->meter_id = htonl(mm->meter.meter_id); | |
2046 | ||
2047 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2048 | ||
2049 | ofpmsg_update_length(msg); | |
2050 | return msg; | |
2051 | } | |
2052 | ||
aa6305ea SH |
2053 | static ovs_be16 |
2054 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2055 | enum ofputil_protocol protocol) | |
2056 | { | |
2057 | return htons(protocol & OFPUTIL_P_TID | |
2058 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2059 | : fm->command); | |
2060 | } | |
2061 | ||
2e4f5fcf | 2062 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2063 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2064 | struct ofpbuf * |
a9a2da38 | 2065 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2066 | enum ofputil_protocol protocol) |
2e4f5fcf | 2067 | { |
0fb88c18 BP |
2068 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2069 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2070 | struct ofpbuf *msg; |
2071 | ||
27527aa0 | 2072 | switch (protocol) { |
75fa58f8 | 2073 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
2074 | case OFPUTIL_P_OF12_OXM: |
2075 | case OFPUTIL_P_OF13_OXM: { | |
aa6305ea | 2076 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2077 | int tailroom; |
aa6305ea | 2078 | |
75fa58f8 | 2079 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2080 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2081 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2082 | if ((protocol == OFPUTIL_P_OF11_STD |
2083 | && (fm->command == OFPFC_MODIFY || | |
2084 | fm->command == OFPFC_MODIFY_STRICT) | |
2085 | && fm->cookie_mask == htonll(0)) | |
2086 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2087 | ofm->cookie = fm->new_cookie; |
2088 | } else { | |
2089 | ofm->cookie = fm->cookie; | |
2090 | } | |
aa6305ea | 2091 | ofm->cookie_mask = fm->cookie_mask; |
0e197060 BP |
2092 | if (fm->table_id != 255 |
2093 | || (protocol != OFPUTIL_P_OF11_STD | |
2094 | && (fm->command == OFPFC_DELETE || | |
2095 | fm->command == OFPFC_DELETE_STRICT))) { | |
2096 | ofm->table_id = fm->table_id; | |
2097 | } else { | |
2098 | ofm->table_id = 0; | |
2099 | } | |
aa6305ea SH |
2100 | ofm->command = fm->command; |
2101 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2102 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2103 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2104 | ofm->buffer_id = htonl(fm->buffer_id); |
2105 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2106 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2107 | ofm->flags = raw_flags; |
75fa58f8 | 2108 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2109 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2110 | version); | |
aa6305ea SH |
2111 | break; |
2112 | } | |
2113 | ||
85813857 BP |
2114 | case OFPUTIL_P_OF10_STD: |
2115 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2116 | struct ofp10_flow_mod *ofm; |
2117 | ||
982697a4 BP |
2118 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2119 | fm->ofpacts_len); | |
2120 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2121 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2122 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2123 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2124 | ofm->idle_timeout = htons(fm->idle_timeout); |
2125 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2126 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2127 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2128 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2129 | ofm->flags = raw_flags; |
e3f8f887 JR |
2130 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2131 | version); | |
27527aa0 | 2132 | break; |
3f192f23 | 2133 | } |
2e4f5fcf | 2134 | |
85813857 BP |
2135 | case OFPUTIL_P_OF10_NXM: |
2136 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2137 | struct nx_flow_mod *nfm; |
2138 | int match_len; | |
2139 | ||
982697a4 BP |
2140 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2141 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2142 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2143 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2144 | nfm->cookie = fm->new_cookie; |
81a76618 | 2145 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
982697a4 | 2146 | nfm = msg->l3; |
2e4f5fcf BP |
2147 | nfm->idle_timeout = htons(fm->idle_timeout); |
2148 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2149 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2150 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2151 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2152 | nfm->flags = raw_flags; |
2e4f5fcf | 2153 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2154 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2155 | version); | |
27527aa0 | 2156 | break; |
3f192f23 | 2157 | } |
27527aa0 BP |
2158 | |
2159 | default: | |
2e4f5fcf BP |
2160 | NOT_REACHED(); |
2161 | } | |
2162 | ||
982697a4 | 2163 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2164 | return msg; |
2165 | } | |
2166 | ||
90bf1e07 | 2167 | static enum ofperr |
0157ad3a SH |
2168 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2169 | const struct ofp10_flow_stats_request *ofsr, | |
2170 | bool aggregate) | |
2e4f5fcf | 2171 | { |
2e4f5fcf | 2172 | fsr->aggregate = aggregate; |
81a76618 | 2173 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2174 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2175 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2176 | fsr->table_id = ofsr->table_id; |
e729e793 | 2177 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2178 | |
2179 | return 0; | |
2180 | } | |
2181 | ||
0157ad3a SH |
2182 | static enum ofperr |
2183 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2184 | struct ofpbuf *b, bool aggregate) | |
2185 | { | |
2186 | const struct ofp11_flow_stats_request *ofsr; | |
2187 | enum ofperr error; | |
2188 | ||
2189 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2190 | fsr->aggregate = aggregate; | |
2191 | fsr->table_id = ofsr->table_id; | |
2192 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2193 | if (error) { | |
2194 | return error; | |
2195 | } | |
7395c052 | 2196 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2197 | fsr->cookie = ofsr->cookie; |
2198 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2199 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2200 | if (error) { |
2201 | return error; | |
2202 | } | |
2203 | ||
2204 | return 0; | |
2205 | } | |
2206 | ||
90bf1e07 | 2207 | static enum ofperr |
81d1ea94 | 2208 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2209 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2210 | { |
2211 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2212 | enum ofperr error; |
2e4f5fcf | 2213 | |
982697a4 | 2214 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2215 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2216 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2217 | if (error) { |
2218 | return error; | |
2219 | } | |
982697a4 | 2220 | if (b->size) { |
90bf1e07 | 2221 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2222 | } |
2223 | ||
2224 | fsr->aggregate = aggregate; | |
4e022ec0 | 2225 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2226 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2227 | fsr->table_id = nfsr->table_id; |
2228 | ||
2229 | return 0; | |
2230 | } | |
2231 | ||
e8f9a7bb VG |
2232 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2233 | * 'port', suitable for OpenFlow version 'version'. */ | |
2234 | struct ofpbuf * | |
2235 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2236 | ofp_port_t port) | |
2237 | { | |
2238 | struct ofpbuf *request; | |
2239 | ||
2240 | if (version == OFP10_VERSION) { | |
2241 | struct ofp10_queue_get_config_request *qgcr10; | |
2242 | ||
2243 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2244 | version, 0); | |
2245 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2246 | qgcr10->port = htons(ofp_to_u16(port)); | |
2247 | } else { | |
2248 | struct ofp11_queue_get_config_request *qgcr11; | |
2249 | ||
2250 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2251 | version, 0); | |
2252 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2253 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2254 | } | |
2255 | ||
2256 | return request; | |
2257 | } | |
2258 | ||
2259 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2260 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2261 | * code. */ | |
2262 | enum ofperr | |
2263 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2264 | ofp_port_t *port) | |
2265 | { | |
2266 | const struct ofp10_queue_get_config_request *qgcr10; | |
2267 | const struct ofp11_queue_get_config_request *qgcr11; | |
2268 | enum ofpraw raw; | |
2269 | struct ofpbuf b; | |
2270 | ||
2271 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2272 | raw = ofpraw_pull_assert(&b); | |
2273 | ||
2274 | switch ((int) raw) { | |
2275 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2276 | qgcr10 = b.data; | |
2277 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2278 | return 0; | |
2279 | ||
2280 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2281 | qgcr11 = b.data; | |
2282 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2283 | } | |
2284 | ||
2285 | NOT_REACHED(); | |
2286 | } | |
2287 | ||
2288 | /* Constructs and returns the beginning of a reply to | |
2289 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2290 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2291 | struct ofpbuf * | |
2292 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2293 | { | |
2294 | struct ofp10_queue_get_config_reply *qgcr10; | |
2295 | struct ofp11_queue_get_config_reply *qgcr11; | |
2296 | struct ofpbuf *reply; | |
2297 | enum ofperr error; | |
2298 | struct ofpbuf b; | |
2299 | enum ofpraw raw; | |
2300 | ofp_port_t port; | |
2301 | ||
2302 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2303 | ovs_assert(!error); | |
2304 | ||
2305 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2306 | raw = ofpraw_pull_assert(&b); | |
2307 | ||
2308 | switch ((int) raw) { | |
2309 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2310 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2311 | oh, 0); | |
2312 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2313 | qgcr10->port = htons(ofp_to_u16(port)); | |
2314 | break; | |
2315 | ||
2316 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2317 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2318 | oh, 0); | |
2319 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2320 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2321 | break; | |
2322 | ||
2323 | default: | |
2324 | NOT_REACHED(); | |
2325 | } | |
2326 | ||
2327 | return reply; | |
2328 | } | |
2329 | ||
2330 | static void | |
2331 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2332 | uint16_t rate) | |
2333 | { | |
2334 | if (rate != UINT16_MAX) { | |
2335 | struct ofp_queue_prop_rate *oqpr; | |
2336 | ||
2337 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2338 | oqpr->prop_header.property = htons(property); | |
2339 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2340 | oqpr->rate = htons(rate); | |
2341 | } | |
2342 | } | |
2343 | ||
2344 | /* Appends a queue description for 'queue_id' to the | |
2345 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2346 | void | |
2347 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2348 | const struct ofputil_queue_config *oqc) | |
2349 | { | |
2350 | const struct ofp_header *oh = reply->data; | |
2351 | size_t start_ofs, len_ofs; | |
2352 | ovs_be16 *len; | |
2353 | ||
2354 | start_ofs = reply->size; | |
2355 | if (oh->version < OFP12_VERSION) { | |
2356 | struct ofp10_packet_queue *opq10; | |
2357 | ||
2358 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2359 | opq10->queue_id = htonl(oqc->queue_id); | |
2360 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2361 | } else { | |
2362 | struct ofp11_queue_get_config_reply *qgcr11; | |
2363 | struct ofp12_packet_queue *opq12; | |
2364 | ovs_be32 port; | |
2365 | ||
2366 | qgcr11 = reply->l3; | |
2367 | port = qgcr11->port; | |
2368 | ||
2369 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2370 | opq12->port = port; | |
2371 | opq12->queue_id = htonl(oqc->queue_id); | |
2372 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2373 | } | |
2374 | ||
2375 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2376 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2377 | ||
2378 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
2379 | *len = htons(reply->size - start_ofs); | |
2380 | } | |
2381 | ||
2382 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2383 | * stores in '*port' the port that the reply is about. The caller may call | |
2384 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2385 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2386 | * ofperr.*/ | |
2387 | enum ofperr | |
2388 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2389 | { | |
2390 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2391 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2392 | enum ofpraw raw; | |
2393 | ||
2394 | raw = ofpraw_pull_assert(reply); | |
2395 | switch ((int) raw) { | |
2396 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2397 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2398 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2399 | return 0; | |
2400 | ||
2401 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2402 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2403 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2404 | } | |
2405 | ||
2406 | NOT_REACHED(); | |
2407 | } | |
2408 | ||
2409 | static enum ofperr | |
2410 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2411 | { | |
2412 | const struct ofp_queue_prop_rate *oqpr; | |
2413 | ||
2414 | if (hdr->len == htons(sizeof *oqpr)) { | |
2415 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2416 | *rate = ntohs(oqpr->rate); | |
2417 | return 0; | |
2418 | } else { | |
2419 | return OFPERR_OFPBRC_BAD_LEN; | |
2420 | } | |
2421 | } | |
2422 | ||
2423 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2424 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2425 | * must already have pulled off the main header. | |
2426 | * | |
2427 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2428 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2429 | * problem decoding 'reply'. */ | |
2430 | int | |
2431 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2432 | struct ofputil_queue_config *queue) | |
2433 | { | |
2434 | const struct ofp_header *oh; | |
2435 | unsigned int opq_len; | |
2436 | unsigned int len; | |
2437 | ||
2438 | if (!reply->size) { | |
2439 | return EOF; | |
2440 | } | |
2441 | ||
2442 | queue->min_rate = UINT16_MAX; | |
2443 | queue->max_rate = UINT16_MAX; | |
2444 | ||
2445 | oh = reply->l2; | |
2446 | if (oh->version < OFP12_VERSION) { | |
2447 | const struct ofp10_packet_queue *opq10; | |
2448 | ||
2449 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2450 | if (!opq10) { | |
2451 | return OFPERR_OFPBRC_BAD_LEN; | |
2452 | } | |
2453 | queue->queue_id = ntohl(opq10->queue_id); | |
2454 | len = ntohs(opq10->len); | |
2455 | opq_len = sizeof *opq10; | |
2456 | } else { | |
2457 | const struct ofp12_packet_queue *opq12; | |
2458 | ||
2459 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2460 | if (!opq12) { | |
2461 | return OFPERR_OFPBRC_BAD_LEN; | |
2462 | } | |
2463 | queue->queue_id = ntohl(opq12->queue_id); | |
2464 | len = ntohs(opq12->len); | |
2465 | opq_len = sizeof *opq12; | |
2466 | } | |
2467 | ||
2468 | if (len < opq_len || len > reply->size + opq_len || len % 8) { | |
2469 | return OFPERR_OFPBRC_BAD_LEN; | |
2470 | } | |
2471 | len -= opq_len; | |
2472 | ||
2473 | while (len > 0) { | |
2474 | const struct ofp_queue_prop_header *hdr; | |
2475 | unsigned int property; | |
2476 | unsigned int prop_len; | |
2477 | enum ofperr error = 0; | |
2478 | ||
2479 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2480 | prop_len = ntohs(hdr->len); | |
2481 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { | |
2482 | return OFPERR_OFPBRC_BAD_LEN; | |
2483 | } | |
2484 | ||
2485 | property = ntohs(hdr->property); | |
2486 | switch (property) { | |
2487 | case OFPQT_MIN_RATE: | |
2488 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2489 | break; | |
2490 | ||
2491 | case OFPQT_MAX_RATE: | |
2492 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2493 | break; | |
2494 | ||
2495 | default: | |
2496 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2497 | break; | |
2498 | } | |
2499 | if (error) { | |
2500 | return error; | |
2501 | } | |
2502 | ||
2503 | ofpbuf_pull(reply, prop_len); | |
2504 | len -= prop_len; | |
2505 | } | |
2506 | return 0; | |
2507 | } | |
2508 | ||
2e4f5fcf | 2509 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2510 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2511 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2512 | enum ofperr |
81d1ea94 | 2513 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2514 | const struct ofp_header *oh) |
2e4f5fcf | 2515 | { |
982697a4 | 2516 | enum ofpraw raw; |
2e4f5fcf | 2517 | struct ofpbuf b; |
2e4f5fcf | 2518 | |
2013493b | 2519 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2520 | raw = ofpraw_pull_assert(&b); |
2521 | switch ((int) raw) { | |
cfc23141 | 2522 | case OFPRAW_OFPST10_FLOW_REQUEST: |
0157ad3a | 2523 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2524 | |
617da9cd | 2525 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
0157ad3a SH |
2526 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
2527 | ||
2528 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2529 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2530 | |
617da9cd SH |
2531 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2532 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2533 | ||
982697a4 BP |
2534 | case OFPRAW_NXST_FLOW_REQUEST: |
2535 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2536 | |
982697a4 BP |
2537 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2538 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2539 | |
2540 | default: | |
2541 | /* Hey, the caller lied. */ | |
2542 | NOT_REACHED(); | |
2543 | } | |
2544 | } | |
2545 | ||
2546 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2547 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2548 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2549 | struct ofpbuf * |
81d1ea94 | 2550 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2551 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2552 | { |
2553 | struct ofpbuf *msg; | |
982697a4 | 2554 | enum ofpraw raw; |
2e4f5fcf | 2555 | |
27527aa0 | 2556 | switch (protocol) { |
75fa58f8 | 2557 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
2558 | case OFPUTIL_P_OF12_OXM: |
2559 | case OFPUTIL_P_OF13_OXM: { | |
06516c65 SH |
2560 | struct ofp11_flow_stats_request *ofsr; |
2561 | ||
2562 | raw = (fsr->aggregate | |
617da9cd | 2563 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2564 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2565 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2566 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2567 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2568 | ofsr->table_id = fsr->table_id; | |
2569 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2570 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2571 | ofsr->cookie = fsr->cookie; |
2572 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2573 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2574 | break; |
2575 | } | |
2576 | ||
85813857 BP |
2577 | case OFPUTIL_P_OF10_STD: |
2578 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2579 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2580 | |
982697a4 | 2581 | raw = (fsr->aggregate |
617da9cd | 2582 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2583 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2584 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2585 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2586 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2587 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2588 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2589 | break; |
2590 | } | |
2591 | ||
85813857 BP |
2592 | case OFPUTIL_P_OF10_NXM: |
2593 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2594 | struct nx_flow_stats_request *nfsr; |
2595 | int match_len; | |
2596 | ||
982697a4 BP |
2597 | raw = (fsr->aggregate |
2598 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2599 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2600 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2601 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2602 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2603 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2604 | |
982697a4 | 2605 | nfsr = msg->l3; |
4e022ec0 | 2606 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2607 | nfsr->match_len = htons(match_len); |
2608 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2609 | break; |
2610 | } | |
2611 | ||
2612 | default: | |
2e4f5fcf BP |
2613 | NOT_REACHED(); |
2614 | } | |
2615 | ||
2616 | return msg; | |
2617 | } | |
d1e2cf21 | 2618 | |
4ffd1b43 | 2619 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2620 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2621 | * |
2622 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2623 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2624 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2625 | * pointers null and not modify them between calls. | |
2626 | * | |
f27f2134 BP |
2627 | * Most switches don't send the values needed to populate fs->idle_age and |
2628 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2629 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2630 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2631 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2632 | * | |
f25d0cf3 BP |
2633 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2634 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2635 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2636 | * | |
4ffd1b43 BP |
2637 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2638 | * otherwise a positive errno value. */ | |
2639 | int | |
2640 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2641 | struct ofpbuf *msg, |
f25d0cf3 BP |
2642 | bool flow_age_extension, |
2643 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2644 | { |
0fb88c18 | 2645 | const struct ofp_header *oh; |
982697a4 BP |
2646 | enum ofperr error; |
2647 | enum ofpraw raw; | |
4ffd1b43 | 2648 | |
982697a4 BP |
2649 | error = (msg->l2 |
2650 | ? ofpraw_decode(&raw, msg->l2) | |
2651 | : ofpraw_pull(&raw, msg)); | |
2652 | if (error) { | |
2653 | return error; | |
4ffd1b43 | 2654 | } |
0fb88c18 | 2655 | oh = msg->l2; |
4ffd1b43 BP |
2656 | |
2657 | if (!msg->size) { | |
2658 | return EOF; | |
2e1ae200 JR |
2659 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2660 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2661 | const struct ofp11_flow_stats *ofs; |
2662 | size_t length; | |
2663 | uint16_t padded_match_len; | |
2664 | ||
2665 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2666 | if (!ofs) { | |
2667 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover " | |
2668 | "bytes at end", msg->size); | |
2669 | return EINVAL; | |
2670 | } | |
2671 | ||
2672 | length = ntohs(ofs->length); | |
2673 | if (length < sizeof *ofs) { | |
2674 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
2675 | "length %zu", length); | |
2676 | return EINVAL; | |
2677 | } | |
2678 | ||
81a76618 | 2679 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2680 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2681 | return EINVAL; | |
2682 | } | |
2683 | ||
e3f8f887 JR |
2684 | if (ofpacts_pull_openflow_instructions(msg, length - sizeof *ofs - |
2685 | padded_match_len, oh->version, | |
2686 | ofpacts)) { | |
6ec5f0c5 SH |
2687 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); |
2688 | return EINVAL; | |
2689 | } | |
2690 | ||
81a76618 | 2691 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2692 | fs->table_id = ofs->table_id; |
2693 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2694 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2695 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2696 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
0fb88c18 BP |
2697 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2698 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2699 | &fs->flags); | |
2700 | if (error) { | |
2701 | return error; | |
2702 | } | |
2703 | } else { | |
2704 | fs->flags = 0; | |
2705 | } | |
6ec5f0c5 SH |
2706 | fs->idle_age = -1; |
2707 | fs->hard_age = -1; | |
2708 | fs->cookie = ofs->cookie; | |
2709 | fs->packet_count = ntohll(ofs->packet_count); | |
2710 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2711 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2712 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2713 | size_t length; |
2714 | ||
2715 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2716 | if (!ofs) { | |
2717 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover " | |
2718 | "bytes at end", msg->size); | |
2719 | return EINVAL; | |
2720 | } | |
2721 | ||
2722 | length = ntohs(ofs->length); | |
2723 | if (length < sizeof *ofs) { | |
2724 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
2725 | "length %zu", length); | |
2726 | return EINVAL; | |
2727 | } | |
2728 | ||
e3f8f887 JR |
2729 | if (ofpacts_pull_openflow_actions(msg, length - sizeof *ofs, |
2730 | oh->version, ofpacts)) { | |
4ffd1b43 BP |
2731 | return EINVAL; |
2732 | } | |
2733 | ||
2734 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2735 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2736 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2737 | fs->table_id = ofs->table_id; |
2738 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2739 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2740 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2741 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
f27f2134 BP |
2742 | fs->idle_age = -1; |
2743 | fs->hard_age = -1; | |
4ffd1b43 BP |
2744 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2745 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2746 | fs->flags = 0; |
982697a4 | 2747 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2748 | const struct nx_flow_stats *nfs; |
f25d0cf3 | 2749 | size_t match_len, actions_len, length; |
4ffd1b43 BP |
2750 | |
2751 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2752 | if (!nfs) { | |
2753 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %zu leftover " | |
2754 | "bytes at end", msg->size); | |
2755 | return EINVAL; | |
2756 | } | |
2757 | ||
2758 | length = ntohs(nfs->length); | |
2759 | match_len = ntohs(nfs->match_len); | |
2760 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
2761 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%zu " | |
2762 | "claims invalid length %zu", match_len, length); | |
2763 | return EINVAL; | |
2764 | } | |
81a76618 | 2765 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2766 | return EINVAL; |
2767 | } | |
2768 | ||
f25d0cf3 | 2769 | actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
e3f8f887 JR |
2770 | if (ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
2771 | ofpacts)) { | |
4ffd1b43 BP |
2772 | return EINVAL; |
2773 | } | |
2774 | ||
2775 | fs->cookie = nfs->cookie; | |
2776 | fs->table_id = nfs->table_id; | |
2777 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2778 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2779 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2780 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2781 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
f27f2134 BP |
2782 | fs->idle_age = -1; |
2783 | fs->hard_age = -1; | |
2784 | if (flow_age_extension) { | |
2785 | if (nfs->idle_age) { | |
2786 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2787 | } | |
2788 | if (nfs->hard_age) { | |
2789 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2790 | } | |
2791 | } | |
4ffd1b43 BP |
2792 | fs->packet_count = ntohll(nfs->packet_count); |
2793 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2794 | fs->flags = 0; |
4ffd1b43 BP |
2795 | } else { |
2796 | NOT_REACHED(); | |
2797 | } | |
2798 | ||
f25d0cf3 BP |
2799 | fs->ofpacts = ofpacts->data; |
2800 | fs->ofpacts_len = ofpacts->size; | |
2801 | ||
4ffd1b43 BP |
2802 | return 0; |
2803 | } | |
2804 | ||
5e9d0469 BP |
2805 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2806 | * | |
2807 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2808 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2809 | static uint64_t | |
2810 | unknown_to_zero(uint64_t count) | |
2811 | { | |
2812 | return count != UINT64_MAX ? count : 0; | |
2813 | } | |
2814 | ||
349adfb2 BP |
2815 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2816 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2817 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2818 | void |
2819 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
2820 | struct list *replies) | |
2821 | { | |
f25d0cf3 | 2822 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
f25d0cf3 | 2823 | size_t start_ofs = reply->size; |
982697a4 | 2824 | enum ofpraw raw; |
e3f8f887 | 2825 | enum ofp_version version = ((struct ofp_header *)reply->data)->version; |
349adfb2 | 2826 | |
982697a4 | 2827 | ofpraw_decode_partial(&raw, reply->data, reply->size); |
2e1ae200 | 2828 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
2829 | struct ofp11_flow_stats *ofs; |
2830 | ||
2831 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
81a76618 | 2832 | oxm_put_match(reply, &fs->match); |
e3f8f887 JR |
2833 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
2834 | version); | |
22a86f18 SH |
2835 | |
2836 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
2837 | ofs->length = htons(reply->size - start_ofs); | |
2838 | ofs->table_id = fs->table_id; | |
2839 | ofs->pad = 0; | |
2840 | ofs->duration_sec = htonl(fs->duration_sec); | |
2841 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2842 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
2843 | ofs->idle_timeout = htons(fs->idle_timeout); |
2844 | ofs->hard_timeout = htons(fs->hard_timeout); | |
0fb88c18 | 2845 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 2846 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
2847 | } else { |
2848 | ofs->flags = 0; | |
2849 | } | |
22a86f18 SH |
2850 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
2851 | ofs->cookie = fs->cookie; | |
2852 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
2853 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
2854 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 2855 | struct ofp10_flow_stats *ofs; |
349adfb2 | 2856 | |
1a59dc2c | 2857 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
2858 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
2859 | version); | |
1a59dc2c BP |
2860 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
2861 | ofs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2862 | ofs->table_id = fs->table_id; |
2863 | ofs->pad = 0; | |
81a76618 | 2864 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
2865 | ofs->duration_sec = htonl(fs->duration_sec); |
2866 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2867 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
2868 | ofs->idle_timeout = htons(fs->idle_timeout); |
2869 | ofs->hard_timeout = htons(fs->hard_timeout); | |
2870 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
2871 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
2872 | put_32aligned_be64(&ofs->packet_count, |
2873 | htonll(unknown_to_zero(fs->packet_count))); | |
2874 | put_32aligned_be64(&ofs->byte_count, | |
2875 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 2876 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 2877 | struct nx_flow_stats *nfs; |
1a59dc2c | 2878 | int match_len; |
349adfb2 | 2879 | |
1a59dc2c | 2880 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 2881 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
2882 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
2883 | version); | |
1a59dc2c BP |
2884 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
2885 | nfs->length = htons(reply->size - start_ofs); | |
349adfb2 BP |
2886 | nfs->table_id = fs->table_id; |
2887 | nfs->pad = 0; | |
2888 | nfs->duration_sec = htonl(fs->duration_sec); | |
2889 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2890 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
2891 | nfs->idle_timeout = htons(fs->idle_timeout); |
2892 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
2893 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
2894 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
2895 | : UINT16_MAX); | |
2896 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
2897 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
2898 | : UINT16_MAX); | |
1a59dc2c | 2899 | nfs->match_len = htons(match_len); |
349adfb2 BP |
2900 | nfs->cookie = fs->cookie; |
2901 | nfs->packet_count = htonll(fs->packet_count); | |
2902 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 BP |
2903 | } else { |
2904 | NOT_REACHED(); | |
2905 | } | |
f25d0cf3 | 2906 | |
982697a4 | 2907 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
2908 | } |
2909 | ||
76c93b22 | 2910 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 2911 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
2912 | struct ofpbuf * |
2913 | ofputil_encode_aggregate_stats_reply( | |
2914 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 2915 | const struct ofp_header *request) |
76c93b22 | 2916 | { |
a814ba0f BP |
2917 | struct ofp_aggregate_stats_reply *asr; |
2918 | uint64_t packet_count; | |
2919 | uint64_t byte_count; | |
76c93b22 | 2920 | struct ofpbuf *msg; |
982697a4 | 2921 | enum ofpraw raw; |
76c93b22 | 2922 | |
982697a4 | 2923 | ofpraw_decode(&raw, request); |
617da9cd | 2924 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
2925 | packet_count = unknown_to_zero(stats->packet_count); |
2926 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 2927 | } else { |
a814ba0f BP |
2928 | packet_count = stats->packet_count; |
2929 | byte_count = stats->byte_count; | |
76c93b22 BP |
2930 | } |
2931 | ||
a814ba0f BP |
2932 | msg = ofpraw_alloc_stats_reply(request, 0); |
2933 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
2934 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
2935 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
2936 | asr->flow_count = htonl(stats->flow_count); | |
2937 | ||
76c93b22 BP |
2938 | return msg; |
2939 | } | |
2940 | ||
982697a4 BP |
2941 | enum ofperr |
2942 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
2943 | const struct ofp_header *reply) | |
2944 | { | |
a814ba0f | 2945 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 2946 | struct ofpbuf msg; |
982697a4 BP |
2947 | |
2948 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
2949 | ofpraw_pull_assert(&msg); |
2950 | ||
2951 | asr = msg.l3; | |
2952 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); | |
2953 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
2954 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
2955 | |
2956 | return 0; | |
2957 | } | |
2958 | ||
b78f6b77 BP |
2959 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
2960 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
2961 | * an OpenFlow error code. */ | |
90bf1e07 | 2962 | enum ofperr |
9b045a0c | 2963 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 2964 | const struct ofp_header *oh) |
9b045a0c | 2965 | { |
982697a4 BP |
2966 | enum ofpraw raw; |
2967 | struct ofpbuf b; | |
9b045a0c | 2968 | |
982697a4 BP |
2969 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2970 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
2971 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
2972 | const struct ofp12_flow_removed *ofr; | |
2973 | enum ofperr error; | |
2974 | ||
2975 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
2976 | ||
81a76618 | 2977 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
2978 | if (error) { |
2979 | return error; | |
2980 | } | |
2981 | ||
81a76618 | 2982 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
2983 | fr->cookie = ofr->cookie; |
2984 | fr->reason = ofr->reason; | |
95216219 | 2985 | fr->table_id = ofr->table_id; |
eefbf181 SH |
2986 | fr->duration_sec = ntohl(ofr->duration_sec); |
2987 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
2988 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
2989 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
2990 | fr->packet_count = ntohll(ofr->packet_count); | |
2991 | fr->byte_count = ntohll(ofr->byte_count); | |
2992 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 2993 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 2994 | |
982697a4 BP |
2995 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
2996 | ||
81a76618 BP |
2997 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
2998 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
2999 | fr->cookie = ofr->cookie; |
3000 | fr->reason = ofr->reason; | |
95216219 | 3001 | fr->table_id = 255; |
9b045a0c BP |
3002 | fr->duration_sec = ntohl(ofr->duration_sec); |
3003 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3004 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3005 | fr->hard_timeout = 0; |
9b045a0c BP |
3006 | fr->packet_count = ntohll(ofr->packet_count); |
3007 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3008 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3009 | struct nx_flow_removed *nfr; |
c2725b60 | 3010 | enum ofperr error; |
9b045a0c | 3011 | |
9b045a0c | 3012 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3013 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3014 | NULL, NULL); | |
9b045a0c BP |
3015 | if (error) { |
3016 | return error; | |
3017 | } | |
3018 | if (b.size) { | |
90bf1e07 | 3019 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3020 | } |
3021 | ||
81a76618 | 3022 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3023 | fr->cookie = nfr->cookie; |
3024 | fr->reason = nfr->reason; | |
745bfd5e | 3025 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3026 | fr->duration_sec = ntohl(nfr->duration_sec); |
3027 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3028 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3029 | fr->hard_timeout = 0; |
9b045a0c BP |
3030 | fr->packet_count = ntohll(nfr->packet_count); |
3031 | fr->byte_count = ntohll(nfr->byte_count); | |
3032 | } else { | |
3033 | NOT_REACHED(); | |
3034 | } | |
3035 | ||
3036 | return 0; | |
3037 | } | |
3038 | ||
588cd7b5 | 3039 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3040 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3041 | * message. */ |
3042 | struct ofpbuf * | |
3043 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3044 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3045 | { |
3046 | struct ofpbuf *msg; | |
3047 | ||
27527aa0 | 3048 | switch (protocol) { |
75fa58f8 | 3049 | case OFPUTIL_P_OF11_STD: |
2e1ae200 JR |
3050 | case OFPUTIL_P_OF12_OXM: |
3051 | case OFPUTIL_P_OF13_OXM: { | |
83974732 SH |
3052 | struct ofp12_flow_removed *ofr; |
3053 | ||
3054 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3055 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3056 | htonl(0), |
3057 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3058 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3059 | ofr->cookie = fr->cookie; | |
81a76618 | 3060 | ofr->priority = htons(fr->priority); |
83974732 | 3061 | ofr->reason = fr->reason; |
95216219 | 3062 | ofr->table_id = fr->table_id; |
83974732 SH |
3063 | ofr->duration_sec = htonl(fr->duration_sec); |
3064 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3065 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3066 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3067 | ofr->packet_count = htonll(fr->packet_count); |
3068 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3069 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3070 | break; |
3071 | } | |
3072 | ||
85813857 BP |
3073 | case OFPUTIL_P_OF10_STD: |
3074 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3075 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3076 | |
982697a4 BP |
3077 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3078 | htonl(0), 0); | |
3079 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3080 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3081 | ofr->cookie = fr->cookie; |
81a76618 | 3082 | ofr->priority = htons(fr->priority); |
588cd7b5 BP |
3083 | ofr->reason = fr->reason; |
3084 | ofr->duration_sec = htonl(fr->duration_sec); | |
3085 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3086 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3087 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3088 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3089 | break; |
3090 | } | |
3091 | ||
85813857 BP |
3092 | case OFPUTIL_P_OF10_NXM: |
3093 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3094 | struct nx_flow_removed *nfr; |
3095 | int match_len; | |
3096 | ||
982697a4 BP |
3097 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3098 | htonl(0), NXM_TYPICAL_LEN); | |
3099 | nfr = ofpbuf_put_zeros(msg, sizeof *nfr); | |
81a76618 | 3100 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3101 | |
982697a4 | 3102 | nfr = msg->l3; |
588cd7b5 | 3103 | nfr->cookie = fr->cookie; |
81a76618 | 3104 | nfr->priority = htons(fr->priority); |
588cd7b5 | 3105 | nfr->reason = fr->reason; |
745bfd5e | 3106 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3107 | nfr->duration_sec = htonl(fr->duration_sec); |
3108 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3109 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3110 | nfr->match_len = htons(match_len); | |
3111 | nfr->packet_count = htonll(fr->packet_count); | |
3112 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3113 | break; |
3114 | } | |
3115 | ||
3116 | default: | |
588cd7b5 BP |
3117 | NOT_REACHED(); |
3118 | } | |
3119 | ||
3120 | return msg; | |
3121 | } | |
3122 | ||
7cfb9651 SH |
3123 | static void |
3124 | ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin, | |
81a76618 | 3125 | struct match *match, struct ofpbuf *b) |
7cfb9651 SH |
3126 | { |
3127 | pin->packet = b->data; | |
3128 | pin->packet_len = b->size; | |
3129 | ||
4e022ec0 | 3130 | pin->fmd.in_port = match->flow.in_port.ofp_port; |
296e07ac | 3131 | pin->fmd.tun_id = match->flow.tunnel.tun_id; |
0ad90c84 JR |
3132 | pin->fmd.tun_src = match->flow.tunnel.ip_src; |
3133 | pin->fmd.tun_dst = match->flow.tunnel.ip_dst; | |
81a76618 BP |
3134 | pin->fmd.metadata = match->flow.metadata; |
3135 | memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs); | |
ac923e91 | 3136 | pin->fmd.pkt_mark = match->flow.pkt_mark; |
7cfb9651 SH |
3137 | } |
3138 | ||
f7cc6bd8 | 3139 | enum ofperr |
65120a8a EJ |
3140 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3141 | const struct ofp_header *oh) | |
3142 | { | |
982697a4 BP |
3143 | enum ofpraw raw; |
3144 | struct ofpbuf b; | |
65120a8a | 3145 | |
65120a8a | 3146 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3147 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3148 | |
982697a4 BP |
3149 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3150 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3151 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3152 | const struct ofp13_packet_in *opi; | |
81a76618 | 3153 | struct match match; |
7cfb9651 | 3154 | int error; |
2e1ae200 JR |
3155 | size_t packet_in_size; |
3156 | ||
3157 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3158 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3159 | } else { | |
3160 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3161 | } | |
7cfb9651 | 3162 | |
2e1ae200 | 3163 | opi = ofpbuf_pull(&b, packet_in_size); |
81a76618 | 3164 | error = oxm_pull_match_loose(&b, &match); |
7cfb9651 SH |
3165 | if (error) { |
3166 | return error; | |
3167 | } | |
3168 | ||
3169 | if (!ofpbuf_try_pull(&b, 2)) { | |
3170 | return OFPERR_OFPBRC_BAD_LEN; | |
3171 | } | |
3172 | ||
2e1ae200 JR |
3173 | pin->reason = opi->pi.reason; |
3174 | pin->table_id = opi->pi.table_id; | |
3175 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3176 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3177 | |
2e1ae200 JR |
3178 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3179 | pin->cookie = opi->cookie; | |
3180 | } | |
7cfb9651 | 3181 | |
81a76618 | 3182 | ofputil_decode_packet_in_finish(pin, &match, &b); |
7cfb9651 | 3183 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3184 | const struct ofp10_packet_in *opi; |
982697a4 | 3185 | |
31a9e63f | 3186 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3187 | |
3188 | pin->packet = opi->data; | |
982697a4 | 3189 | pin->packet_len = b.size; |
65120a8a | 3190 | |
4e022ec0 | 3191 | pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port)); |
65120a8a EJ |
3192 | pin->reason = opi->reason; |
3193 | pin->buffer_id = ntohl(opi->buffer_id); | |
3194 | pin->total_len = ntohs(opi->total_len); | |
982697a4 | 3195 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3196 | const struct nx_packet_in *npi; |
81a76618 | 3197 | struct match match; |
54834960 EJ |
3198 | int error; |
3199 | ||
54834960 | 3200 | npi = ofpbuf_pull(&b, sizeof *npi); |
81a76618 | 3201 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL, |
b5ae8913 | 3202 | NULL); |
54834960 EJ |
3203 | if (error) { |
3204 | return error; | |
3205 | } | |
3206 | ||
3207 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3208 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3209 | } |
3210 | ||
54834960 EJ |
3211 | pin->reason = npi->reason; |
3212 | pin->table_id = npi->table_id; | |
3213 | pin->cookie = npi->cookie; | |
3214 | ||
54834960 EJ |
3215 | pin->buffer_id = ntohl(npi->buffer_id); |
3216 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3217 | |
81a76618 | 3218 | ofputil_decode_packet_in_finish(pin, &match, &b); |
65120a8a EJ |
3219 | } else { |
3220 | NOT_REACHED(); | |
3221 | } | |
3222 | ||
3223 | return 0; | |
3224 | } | |
3225 | ||
d94240ec | 3226 | static void |
81a76618 BP |
3227 | ofputil_packet_in_to_match(const struct ofputil_packet_in *pin, |
3228 | struct match *match) | |
d94240ec SH |
3229 | { |
3230 | int i; | |
3231 | ||
81a76618 | 3232 | match_init_catchall(match); |
42edbe39 | 3233 | if (pin->fmd.tun_id != htonll(0)) { |
81a76618 | 3234 | match_set_tun_id(match, pin->fmd.tun_id); |
42edbe39 | 3235 | } |
0ad90c84 JR |
3236 | if (pin->fmd.tun_src != htonl(0)) { |
3237 | match_set_tun_src(match, pin->fmd.tun_src); | |
3238 | } | |
3239 | if (pin->fmd.tun_dst != htonl(0)) { | |
3240 | match_set_tun_dst(match, pin->fmd.tun_dst); | |
3241 | } | |
42edbe39 | 3242 | if (pin->fmd.metadata != htonll(0)) { |
81a76618 | 3243 | match_set_metadata(match, pin->fmd.metadata); |
42edbe39 | 3244 | } |
d94240ec SH |
3245 | |
3246 | for (i = 0; i < FLOW_N_REGS; i++) { | |
42edbe39 | 3247 | if (pin->fmd.regs[i]) { |
81a76618 | 3248 | match_set_reg(match, i, pin->fmd.regs[i]); |
42edbe39 | 3249 | } |
d94240ec SH |
3250 | } |
3251 | ||
ac923e91 JG |
3252 | if (pin->fmd.pkt_mark != 0) { |
3253 | match_set_pkt_mark(match, pin->fmd.pkt_mark); | |
3254 | } | |
3255 | ||
81a76618 | 3256 | match_set_in_port(match, pin->fmd.in_port); |
d94240ec SH |
3257 | } |
3258 | ||
54834960 EJ |
3259 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3260 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3261 | struct ofpbuf * |
54834960 | 3262 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3263 | enum ofputil_protocol protocol, |
54834960 | 3264 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3265 | { |
54834960 | 3266 | struct ofpbuf *packet; |
ebb57021 BP |
3267 | |
3268 | /* Add OFPT_PACKET_IN. */ | |
2e1ae200 JR |
3269 | if (protocol == OFPUTIL_P_OF13_OXM || protocol == OFPUTIL_P_OF12_OXM) { |
3270 | struct ofp13_packet_in *opi; | |
81a76618 | 3271 | struct match match; |
2e1ae200 JR |
3272 | enum ofpraw packet_in_raw; |
3273 | enum ofp_version packet_in_version; | |
3274 | size_t packet_in_size; | |
3275 | ||
3276 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3277 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3278 | packet_in_version = OFP12_VERSION; | |
3279 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3280 | } else { | |
3281 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
3282 | packet_in_version = OFP13_VERSION; | |
3283 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3284 | } | |
d94240ec | 3285 | |
81a76618 | 3286 | ofputil_packet_in_to_match(pin, &match); |
d94240ec SH |
3287 | |
3288 | /* The final argument is just an estimate of the space required. */ | |
2e1ae200 | 3289 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, |
d94240ec | 3290 | htonl(0), (sizeof(struct flow_metadata) * 2 |
d38a3c7b | 3291 | + 2 + pin->packet_len)); |
2e1ae200 | 3292 | ofpbuf_put_zeros(packet, packet_in_size); |
81a76618 | 3293 | oxm_put_match(packet, &match); |
d94240ec | 3294 | ofpbuf_put_zeros(packet, 2); |
d38a3c7b | 3295 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
d94240ec SH |
3296 | |
3297 | opi = packet->l3; | |
2e1ae200 JR |
3298 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3299 | opi->pi.total_len = htons(pin->total_len); | |
3300 | opi->pi.reason = pin->reason; | |
3301 | opi->pi.table_id = pin->table_id; | |
3302 | if (protocol == OFPUTIL_P_OF13_OXM) { | |
3303 | opi->cookie = pin->cookie; | |
3304 | } | |
3305 | } else if (packet_in_format == NXPIF_OPENFLOW10) { | |
31a9e63f | 3306 | struct ofp10_packet_in *opi; |
54834960 | 3307 | |
982697a4 | 3308 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
d38a3c7b | 3309 | htonl(0), pin->packet_len); |
31a9e63f | 3310 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); |
54834960 | 3311 | opi->total_len = htons(pin->total_len); |
4e022ec0 | 3312 | opi->in_port = htons(ofp_to_u16(pin->fmd.in_port)); |
54834960 EJ |
3313 | opi->reason = pin->reason; |
3314 | opi->buffer_id = htonl(pin->buffer_id); | |
3315 | ||
d38a3c7b | 3316 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
54834960 | 3317 | } else if (packet_in_format == NXPIF_NXM) { |
73dbf4ab | 3318 | struct nx_packet_in *npi; |
81a76618 | 3319 | struct match match; |
54834960 | 3320 | size_t match_len; |
54834960 | 3321 | |
81a76618 | 3322 | ofputil_packet_in_to_match(pin, &match); |
54834960 | 3323 | |
982697a4 BP |
3324 | /* The final argument is just an estimate of the space required. */ |
3325 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
3326 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
d38a3c7b | 3327 | + 2 + pin->packet_len)); |
54834960 | 3328 | ofpbuf_put_zeros(packet, sizeof *npi); |
81a76618 | 3329 | match_len = nx_put_match(packet, &match, 0, 0); |
54834960 | 3330 | ofpbuf_put_zeros(packet, 2); |
d38a3c7b | 3331 | ofpbuf_put(packet, pin->packet, pin->packet_len); |
54834960 | 3332 | |
982697a4 | 3333 | npi = packet->l3; |
54834960 EJ |
3334 | npi->buffer_id = htonl(pin->buffer_id); |
3335 | npi->total_len = htons(pin->total_len); | |
3336 | npi->reason = pin->reason; | |
3337 | npi->table_id = pin->table_id; | |
3338 | npi->cookie = pin->cookie; | |
3339 | npi->match_len = htons(match_len); | |
3340 | } else { | |
3341 | NOT_REACHED(); | |
3342 | } | |
982697a4 | 3343 | ofpmsg_update_length(packet); |
54834960 EJ |
3344 | |
3345 | return packet; | |
ebb57021 BP |
3346 | } |
3347 | ||
5014a89d BP |
3348 | /* Returns a string form of 'reason'. The return value is either a statically |
3349 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3350 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3351 | const char * |
5014a89d BP |
3352 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3353 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3354 | { |
7c1a76a4 BP |
3355 | switch (reason) { |
3356 | case OFPR_NO_MATCH: | |
3357 | return "no_match"; | |
3358 | case OFPR_ACTION: | |
3359 | return "action"; | |
3360 | case OFPR_INVALID_TTL: | |
3361 | return "invalid_ttl"; | |
3362 | ||
3363 | case OFPR_N_REASONS: | |
3364 | default: | |
5014a89d BP |
3365 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3366 | return reasonbuf; | |
7c1a76a4 BP |
3367 | } |
3368 | } | |
3369 | ||
3370 | bool | |
3371 | ofputil_packet_in_reason_from_string(const char *s, | |
3372 | enum ofp_packet_in_reason *reason) | |
3373 | { | |
3374 | int i; | |
3375 | ||
3376 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3377 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3378 | const char *reason_s; | |
3379 | ||
3380 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3381 | sizeof reasonbuf); | |
3382 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3383 | *reason = i; |
3384 | return true; | |
3385 | } | |
3386 | } | |
3387 | return false; | |
3388 | } | |
3389 | ||
f25d0cf3 BP |
3390 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3391 | * 'po'. | |
3392 | * | |
3393 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3394 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3395 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3396 | * | |
3397 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3398 | enum ofperr |
3399 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3400 | const struct ofp_header *oh, |
f25d0cf3 | 3401 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3402 | { |
982697a4 | 3403 | enum ofpraw raw; |
c6a93eb7 BP |
3404 | struct ofpbuf b; |
3405 | ||
982697a4 BP |
3406 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3407 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3408 | |
eb5ee596 SH |
3409 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3410 | enum ofperr error; | |
3411 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3412 | ||
3413 | po->buffer_id = ntohl(opo->buffer_id); | |
3414 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3415 | if (error) { | |
3416 | return error; | |
3417 | } | |
3418 | ||
e3f8f887 JR |
3419 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3420 | oh->version, ofpacts); | |
eb5ee596 SH |
3421 | if (error) { |
3422 | return error; | |
3423 | } | |
eb5ee596 | 3424 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3425 | enum ofperr error; |
31a9e63f | 3426 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3427 | |
3428 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3429 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3430 | |
e3f8f887 JR |
3431 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3432 | oh->version, ofpacts); | |
8a6bc7cd SH |
3433 | if (error) { |
3434 | return error; | |
3435 | } | |
3436 | } else { | |
3437 | NOT_REACHED(); | |
3438 | } | |
3439 | ||
4e022ec0 AW |
3440 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3441 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3442 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3443 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3444 | po->in_port); | |
2e1bfcb6 | 3445 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3446 | } |
3447 | ||
f25d0cf3 BP |
3448 | po->ofpacts = ofpacts->data; |
3449 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3450 | |
3451 | if (po->buffer_id == UINT32_MAX) { | |
3452 | po->packet = b.data; | |
3453 | po->packet_len = b.size; | |
3454 | } else { | |
3455 | po->packet = NULL; | |
3456 | po->packet_len = 0; | |
3457 | } | |
3458 | ||
3459 | return 0; | |
3460 | } | |
6c038611 BP |
3461 | \f |
3462 | /* ofputil_phy_port */ | |
3463 | ||
3464 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3465 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3466 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3467 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3468 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3469 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3470 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3471 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3472 | ||
3473 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3474 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3475 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3476 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3477 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3478 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3479 | |
9e1fd49b BP |
3480 | static enum netdev_features |
3481 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3482 | { |
3483 | uint32_t ofp10 = ntohl(ofp10_); | |
3484 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3485 | } | |
3486 | ||
9e1fd49b BP |
3487 | static ovs_be32 |
3488 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3489 | { |
3490 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3491 | } | |
c6a93eb7 | 3492 | |
9e1fd49b BP |
3493 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3494 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3495 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3496 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3497 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3498 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3499 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3500 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3501 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3502 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3503 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3504 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3505 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3506 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3507 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3508 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3509 | ||
3510 | static enum netdev_features | |
3511 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3512 | { | |
3513 | return ntohl(ofp11) & 0xffff; | |
3514 | } | |
3515 | ||
3516 | static ovs_be32 | |
3517 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3518 | { | |
3519 | return htonl(features & 0xffff); | |
3520 | } | |
3521 | ||
3522 | static enum ofperr | |
3523 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3524 | const struct ofp10_phy_port *opp) | |
3525 | { | |
3526 | memset(pp, 0, sizeof *pp); | |
3527 | ||
4e022ec0 | 3528 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3529 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3530 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3531 | ||
3532 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3533 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3534 | ||
3535 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3536 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3537 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3538 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3539 | ||
d02a5f8e BP |
3540 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3541 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3542 | |
3543 | return 0; | |
3544 | } | |
3545 | ||
3546 | static enum ofperr | |
3547 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3548 | const struct ofp11_port *op) | |
3549 | { | |
3550 | enum ofperr error; | |
3551 | ||
3552 | memset(pp, 0, sizeof *pp); | |
3553 | ||
3554 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3555 | if (error) { | |
3556 | return error; | |
3557 | } | |
3558 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3559 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3560 | ||
3561 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3562 | pp->state = ntohl(op->state) & OFPPC11_ALL; | |
3563 | ||
3564 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3565 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3566 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3567 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3568 | ||
3569 | pp->curr_speed = ntohl(op->curr_speed); | |
3570 | pp->max_speed = ntohl(op->max_speed); | |
3571 | ||
3572 | return 0; | |
3573 | } | |
3574 | ||
5b5a3a67 | 3575 | static size_t |
2e3fa633 SH |
3576 | ofputil_get_phy_port_size(enum ofp_version ofp_version) |
3577 | { | |
3578 | switch (ofp_version) { | |
3579 | case OFP10_VERSION: | |
3580 | return sizeof(struct ofp10_phy_port); | |
3581 | case OFP11_VERSION: | |
3582 | case OFP12_VERSION: | |
2e1ae200 | 3583 | case OFP13_VERSION: |
2e3fa633 SH |
3584 | return sizeof(struct ofp11_port); |
3585 | default: | |
3586 | NOT_REACHED(); | |
3587 | } | |
5b5a3a67 JP |
3588 | } |
3589 | ||
9e1fd49b BP |
3590 | static void |
3591 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3592 | struct ofp10_phy_port *opp) | |
3593 | { | |
3594 | memset(opp, 0, sizeof *opp); | |
3595 | ||
4e022ec0 | 3596 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3597 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3598 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3599 | ||
3600 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3601 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3602 | ||
3603 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3604 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3605 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3606 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3607 | } | |
3608 | ||
3609 | static void | |
3610 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3611 | struct ofp11_port *op) | |
3612 | { | |
3613 | memset(op, 0, sizeof *op); | |
3614 | ||
3615 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3616 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3617 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3618 | ||
3619 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3620 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3621 | ||
3622 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3623 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3624 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3625 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3626 | ||
3627 | op->curr_speed = htonl(pp->curr_speed); | |
3628 | op->max_speed = htonl(pp->max_speed); | |
3629 | } | |
3630 | ||
3631 | static void | |
2e3fa633 SH |
3632 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3633 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3634 | { |
2e3fa633 SH |
3635 | switch (ofp_version) { |
3636 | case OFP10_VERSION: { | |
9e1fd49b BP |
3637 | struct ofp10_phy_port *opp; |
3638 | if (b->size + sizeof *opp <= UINT16_MAX) { | |
3639 | opp = ofpbuf_put_uninit(b, sizeof *opp); | |
3640 | ofputil_encode_ofp10_phy_port(pp, opp); | |
3641 | } | |
2e3fa633 SH |
3642 | break; |
3643 | } | |
3644 | ||
3645 | case OFP11_VERSION: | |
2e1ae200 JR |
3646 | case OFP12_VERSION: |
3647 | case OFP13_VERSION: { | |
9e1fd49b BP |
3648 | struct ofp11_port *op; |
3649 | if (b->size + sizeof *op <= UINT16_MAX) { | |
3650 | op = ofpbuf_put_uninit(b, sizeof *op); | |
3651 | ofputil_encode_ofp11_port(pp, op); | |
3652 | } | |
2e3fa633 SH |
3653 | break; |
3654 | } | |
3655 | ||
3656 | default: | |
3657 | NOT_REACHED(); | |
9e1fd49b BP |
3658 | } |
3659 | } | |
2be393ed JP |
3660 | |
3661 | void | |
2e3fa633 | 3662 | ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version, |
2be393ed JP |
3663 | const struct ofputil_phy_port *pp, |
3664 | struct list *replies) | |
3665 | { | |
2e3fa633 SH |
3666 | switch (ofp_version) { |
3667 | case OFP10_VERSION: { | |
2be393ed JP |
3668 | struct ofp10_phy_port *opp; |
3669 | ||
982697a4 | 3670 | opp = ofpmp_append(replies, sizeof *opp); |
2be393ed | 3671 | ofputil_encode_ofp10_phy_port(pp, opp); |
2e3fa633 SH |
3672 | break; |
3673 | } | |
3674 | ||
3675 | case OFP11_VERSION: | |
2e1ae200 JR |
3676 | case OFP12_VERSION: |
3677 | case OFP13_VERSION: { | |
2be393ed JP |
3678 | struct ofp11_port *op; |
3679 | ||
982697a4 | 3680 | op = ofpmp_append(replies, sizeof *op); |
2be393ed | 3681 | ofputil_encode_ofp11_port(pp, op); |
2e3fa633 SH |
3682 | break; |
3683 | } | |
3684 | ||
3685 | default: | |
3686 | NOT_REACHED(); | |
2be393ed JP |
3687 | } |
3688 | } | |
9e1fd49b BP |
3689 | \f |
3690 | /* ofputil_switch_features */ | |
3691 | ||
3692 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 3693 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
3694 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
3695 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
3696 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
3697 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
3698 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
3699 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
3700 | ||
3701 | struct ofputil_action_bit_translation { | |
3702 | enum ofputil_action_bitmap ofputil_bit; | |
3703 | int of_bit; | |
3704 | }; | |
3705 | ||
3706 | static const struct ofputil_action_bit_translation of10_action_bits[] = { | |
3707 | { OFPUTIL_A_OUTPUT, OFPAT10_OUTPUT }, | |
3708 | { OFPUTIL_A_SET_VLAN_VID, OFPAT10_SET_VLAN_VID }, | |
3709 | { OFPUTIL_A_SET_VLAN_PCP, OFPAT10_SET_VLAN_PCP }, | |
3710 | { OFPUTIL_A_STRIP_VLAN, OFPAT10_STRIP_VLAN }, | |
3711 | { OFPUTIL_A_SET_DL_SRC, OFPAT10_SET_DL_SRC }, | |
3712 | { OFPUTIL_A_SET_DL_DST, OFPAT10_SET_DL_DST }, | |
3713 | { OFPUTIL_A_SET_NW_SRC, OFPAT10_SET_NW_SRC }, | |
3714 | { OFPUTIL_A_SET_NW_DST, OFPAT10_SET_NW_DST }, | |
3715 | { OFPUTIL_A_SET_NW_TOS, OFPAT10_SET_NW_TOS }, | |
3716 | { OFPUTIL_A_SET_TP_SRC, OFPAT10_SET_TP_SRC }, | |
3717 | { OFPUTIL_A_SET_TP_DST, OFPAT10_SET_TP_DST }, | |
3718 | { OFPUTIL_A_ENQUEUE, OFPAT10_ENQUEUE }, | |
3719 | { 0, 0 }, | |
3720 | }; | |
3721 | ||
9e1fd49b BP |
3722 | static enum ofputil_action_bitmap |
3723 | decode_action_bits(ovs_be32 of_actions, | |
3724 | const struct ofputil_action_bit_translation *x) | |
3725 | { | |
3726 | enum ofputil_action_bitmap ofputil_actions; | |
3727 | ||
3728 | ofputil_actions = 0; | |
3729 | for (; x->ofputil_bit; x++) { | |
3730 | if (of_actions & htonl(1u << x->of_bit)) { | |
3731 | ofputil_actions |= x->ofputil_bit; | |
3732 | } | |
3733 | } | |
3734 | return ofputil_actions; | |
3735 | } | |
3736 | ||
60202987 SH |
3737 | static uint32_t |
3738 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
3739 | { | |
3740 | /* Handle capabilities whose bit is unique for all Open Flow versions */ | |
3741 | switch (ofp_version) { | |
3742 | case OFP10_VERSION: | |
3743 | case OFP11_VERSION: | |
3744 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
3745 | case OFP12_VERSION: | |
2e1ae200 | 3746 | case OFP13_VERSION: |
60202987 SH |
3747 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
3748 | default: | |
3749 | /* Caller needs to check osf->header.version itself */ | |
3750 | return 0; | |
3751 | } | |
3752 | } | |
3753 | ||
9e1fd49b BP |
3754 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
3755 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
3756 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 3757 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
3758 | * OFPERR_* value. */ |
3759 | enum ofperr | |
982697a4 | 3760 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
3761 | struct ofputil_switch_features *features, |
3762 | struct ofpbuf *b) | |
3763 | { | |
982697a4 BP |
3764 | const struct ofp_switch_features *osf; |
3765 | enum ofpraw raw; | |
3766 | ||
3767 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
3768 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 3769 | |
982697a4 | 3770 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
3771 | features->datapath_id = ntohll(osf->datapath_id); |
3772 | features->n_buffers = ntohl(osf->n_buffers); | |
3773 | features->n_tables = osf->n_tables; | |
2e1ae200 | 3774 | features->auxiliary_id = 0; |
9e1fd49b | 3775 | |
60202987 SH |
3776 | features->capabilities = ntohl(osf->capabilities) & |
3777 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 3778 | |
982697a4 | 3779 | if (b->size % ofputil_get_phy_port_size(oh->version)) { |
5b5a3a67 JP |
3780 | return OFPERR_OFPBRC_BAD_LEN; |
3781 | } | |
3782 | ||
982697a4 | 3783 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
3784 | if (osf->capabilities & htonl(OFPC10_STP)) { |
3785 | features->capabilities |= OFPUTIL_C_STP; | |
3786 | } | |
3787 | features->actions = decode_action_bits(osf->actions, of10_action_bits); | |
2e1ae200 JR |
3788 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
3789 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
3790 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
3791 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
3792 | } | |
34b28fc7 | 3793 | features->actions = 0; |
2e1ae200 JR |
3794 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
3795 | features->auxiliary_id = osf->auxiliary_id; | |
3796 | } | |
9e1fd49b BP |
3797 | } else { |
3798 | return OFPERR_OFPBRC_BAD_VERSION; | |
3799 | } | |
3800 | ||
3801 | return 0; | |
3802 | } | |
3803 | ||
982697a4 | 3804 | /* Returns true if the maximum number of ports are in 'oh'. */ |
347b7ac4 | 3805 | static bool |
982697a4 | 3806 | max_ports_in_features(const struct ofp_header *oh) |
347b7ac4 | 3807 | { |
982697a4 BP |
3808 | size_t pp_size = ofputil_get_phy_port_size(oh->version); |
3809 | return ntohs(oh->length) + pp_size > UINT16_MAX; | |
347b7ac4 JP |
3810 | } |
3811 | ||
3812 | /* Given a buffer 'b' that contains a Features Reply message, checks if | |
3813 | * it contains the maximum number of ports that will fit. If so, it | |
3814 | * returns true and removes the ports from the message. The caller | |
3815 | * should then send an OFPST_PORT_DESC stats request to get the ports, | |
3816 | * since the switch may have more ports than could be represented in the | |
3817 | * Features Reply. Otherwise, returns false. | |
3818 | */ | |
3819 | bool | |
3820 | ofputil_switch_features_ports_trunc(struct ofpbuf *b) | |
3821 | { | |
982697a4 | 3822 | struct ofp_header *oh = b->data; |
347b7ac4 | 3823 | |
982697a4 | 3824 | if (max_ports_in_features(oh)) { |
347b7ac4 | 3825 | /* Remove all the ports. */ |
982697a4 BP |
3826 | b->size = (sizeof(struct ofp_header) |
3827 | + sizeof(struct ofp_switch_features)); | |
3828 | ofpmsg_update_length(b); | |
347b7ac4 JP |
3829 | |
3830 | return true; | |
3831 | } | |
3832 | ||
3833 | return false; | |
3834 | } | |
3835 | ||
9e1fd49b BP |
3836 | static ovs_be32 |
3837 | encode_action_bits(enum ofputil_action_bitmap ofputil_actions, | |
3838 | const struct ofputil_action_bit_translation *x) | |
3839 | { | |
3840 | uint32_t of_actions; | |
3841 | ||
3842 | of_actions = 0; | |
3843 | for (; x->ofputil_bit; x++) { | |
3844 | if (ofputil_actions & x->ofputil_bit) { | |
3845 | of_actions |= 1 << x->of_bit; | |
3846 | } | |
3847 | } | |
3848 | return htonl(of_actions); | |
3849 | } | |
3850 | ||
3851 | /* Returns a buffer owned by the caller that encodes 'features' in the format | |
3852 | * required by 'protocol' with the given 'xid'. The caller should append port | |
3853 | * information to the buffer with subsequent calls to | |
3854 | * ofputil_put_switch_features_port(). */ | |
3855 | struct ofpbuf * | |
3856 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
3857 | enum ofputil_protocol protocol, ovs_be32 xid) | |
3858 | { | |
3859 | struct ofp_switch_features *osf; | |
3860 | struct ofpbuf *b; | |
2e3fa633 SH |
3861 | enum ofp_version version; |
3862 | enum ofpraw raw; | |
982697a4 BP |
3863 | |
3864 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
3865 | switch (version) { |
3866 | case OFP10_VERSION: | |
3867 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
3868 | break; | |
3869 | case OFP11_VERSION: | |
3870 | case OFP12_VERSION: | |
3871 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
3872 | break; | |
2e1ae200 JR |
3873 | case OFP13_VERSION: |
3874 | raw = OFPRAW_OFPT13_FEATURES_REPLY; | |
3875 | break; | |
2e3fa633 SH |
3876 | default: |
3877 | NOT_REACHED(); | |
3878 | } | |
3879 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 3880 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
3881 | osf->datapath_id = htonll(features->datapath_id); |
3882 | osf->n_buffers = htonl(features->n_buffers); | |
3883 | osf->n_tables = features->n_tables; | |
3884 | ||
3885 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
3886 | osf->capabilities = htonl(features->capabilities & |
3887 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
3888 | switch (version) { |
3889 | case OFP10_VERSION: | |
9e1fd49b BP |
3890 | if (features->capabilities & OFPUTIL_C_STP) { |
3891 | osf->capabilities |= htonl(OFPC10_STP); | |
3892 | } | |
3893 | osf->actions = encode_action_bits(features->actions, of10_action_bits); | |
2e3fa633 | 3894 | break; |
2e1ae200 JR |
3895 | case OFP13_VERSION: |
3896 | osf->auxiliary_id = features->auxiliary_id; | |
3897 | /* fall through */ | |
2e3fa633 SH |
3898 | case OFP11_VERSION: |
3899 | case OFP12_VERSION: | |
9e1fd49b BP |
3900 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
3901 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
3902 | } | |
2e3fa633 SH |
3903 | break; |
3904 | default: | |
3905 | NOT_REACHED(); | |
9e1fd49b BP |
3906 | } |
3907 | ||
3908 | return b; | |
3909 | } | |
3910 | ||
3911 | /* Encodes 'pp' into the format required by the switch_features message already | |
3912 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
3913 | * and appends the encoded version to 'b'. */ | |
3914 | void | |
3915 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
3916 | struct ofpbuf *b) | |
3917 | { | |
982697a4 | 3918 | const struct ofp_header *oh = b->data; |
9e1fd49b | 3919 | |
e0c91c0c SK |
3920 | if (oh->version < OFP13_VERSION) { |
3921 | ofputil_put_phy_port(oh->version, pp, b); | |
3922 | } | |
9e1fd49b BP |
3923 | } |
3924 | \f | |
3925 | /* ofputil_port_status */ | |
3926 | ||
3927 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
3928 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
3929 | enum ofperr | |
982697a4 | 3930 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
3931 | struct ofputil_port_status *ps) |
3932 | { | |
982697a4 | 3933 | const struct ofp_port_status *ops; |
9e1fd49b BP |
3934 | struct ofpbuf b; |
3935 | int retval; | |
3936 | ||
982697a4 BP |
3937 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3938 | ofpraw_pull_assert(&b); | |
3939 | ops = ofpbuf_pull(&b, sizeof *ops); | |
3940 | ||
9e1fd49b BP |
3941 | if (ops->reason != OFPPR_ADD && |
3942 | ops->reason != OFPPR_DELETE && | |
3943 | ops->reason != OFPPR_MODIFY) { | |
3944 | return OFPERR_NXBRC_BAD_REASON; | |
3945 | } | |
3946 | ps->reason = ops->reason; | |
3947 | ||
982697a4 | 3948 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 3949 | ovs_assert(retval != EOF); |
9e1fd49b BP |
3950 | return retval; |
3951 | } | |
3952 | ||
3953 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
3954 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
3955 | * a buffer owned by the caller. */ | |
3956 | struct ofpbuf * | |
3957 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
3958 | enum ofputil_protocol protocol) | |
3959 | { | |
3960 | struct ofp_port_status *ops; | |
3961 | struct ofpbuf *b; | |
2e3fa633 SH |
3962 | enum ofp_version version; |
3963 | enum ofpraw raw; | |
982697a4 BP |
3964 | |
3965 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
3966 | switch (version) { |
3967 | case OFP10_VERSION: | |
3968 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
3969 | break; | |
3970 | ||
3971 | case OFP11_VERSION: | |
3972 | case OFP12_VERSION: | |
2e1ae200 | 3973 | case OFP13_VERSION: |
2e3fa633 SH |
3974 | raw = OFPRAW_OFPT11_PORT_STATUS; |
3975 | break; | |
3976 | ||
3977 | default: | |
3978 | NOT_REACHED(); | |
3979 | } | |
3980 | ||
3981 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 3982 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 3983 | ops->reason = ps->reason; |
982697a4 BP |
3984 | ofputil_put_phy_port(version, &ps->desc, b); |
3985 | ofpmsg_update_length(b); | |
9e1fd49b BP |
3986 | return b; |
3987 | } | |
918f2b82 | 3988 | |
9e1fd49b BP |
3989 | /* ofputil_port_mod */ |
3990 | ||
3991 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in | |
3992 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
3993 | enum ofperr | |
3994 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
3995 | struct ofputil_port_mod *pm) | |
3996 | { | |
982697a4 BP |
3997 | enum ofpraw raw; |
3998 | struct ofpbuf b; | |
9e1fd49b | 3999 | |
982697a4 BP |
4000 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4001 | raw = ofpraw_pull_assert(&b); | |
4002 | ||
4003 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
4004 | const struct ofp10_port_mod *opm = b.data; | |
9e1fd49b | 4005 | |
4e022ec0 | 4006 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
4007 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
4008 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
4009 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4010 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 BP |
4011 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
4012 | const struct ofp11_port_mod *opm = b.data; | |
9e1fd49b BP |
4013 | enum ofperr error; |
4014 | ||
9e1fd49b BP |
4015 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4016 | if (error) { | |
4017 | return error; | |
4018 | } | |
4019 | ||
4020 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4021 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4022 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4023 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
4024 | } else { | |
982697a4 | 4025 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4026 | } |
4027 | ||
4028 | pm->config &= pm->mask; | |
4029 | return 0; | |
4030 | } | |
4031 | ||
4032 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4033 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4034 | * owned by the caller. */ | |
4035 | struct ofpbuf * | |
4036 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4037 | enum ofputil_protocol protocol) | |
4038 | { | |
2e3fa633 | 4039 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4040 | struct ofpbuf *b; |
4041 | ||
2e3fa633 SH |
4042 | switch (ofp_version) { |
4043 | case OFP10_VERSION: { | |
9e1fd49b BP |
4044 | struct ofp10_port_mod *opm; |
4045 | ||
982697a4 BP |
4046 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4047 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4048 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4049 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4050 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4051 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4052 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4053 | break; |
4054 | } | |
4055 | ||
5fe7c919 | 4056 | case OFP11_VERSION: |
2e1ae200 JR |
4057 | case OFP12_VERSION: |
4058 | case OFP13_VERSION: { | |
9e1fd49b BP |
4059 | struct ofp11_port_mod *opm; |
4060 | ||
982697a4 BP |
4061 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4062 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4063 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4064 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4065 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4066 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4067 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4068 | break; |
4069 | } | |
918f2b82 AZ |
4070 | default: |
4071 | NOT_REACHED(); | |
4072 | } | |
4073 | ||
4074 | return b; | |
4075 | } | |
4076 | ||
4077 | /* ofputil_table_mod */ | |
4078 | ||
4079 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in | |
4080 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4081 | enum ofperr | |
4082 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4083 | struct ofputil_table_mod *pm) | |
4084 | { | |
4085 | enum ofpraw raw; | |
4086 | struct ofpbuf b; | |
4087 | ||
4088 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4089 | raw = ofpraw_pull_assert(&b); | |
4090 | ||
4091 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
4092 | const struct ofp11_table_mod *otm = b.data; | |
4093 | ||
4094 | pm->table_id = otm->table_id; | |
4095 | pm->config = ntohl(otm->config); | |
4096 | } else { | |
4097 | return OFPERR_OFPBRC_BAD_TYPE; | |
4098 | } | |
4099 | ||
4100 | return 0; | |
4101 | } | |
4102 | ||
4103 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
4104 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4105 | * owned by the caller. */ | |
4106 | struct ofpbuf * | |
4107 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
4108 | enum ofputil_protocol protocol) | |
4109 | { | |
4110 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
4111 | struct ofpbuf *b; | |
4112 | ||
4113 | switch (ofp_version) { | |
4114 | case OFP10_VERSION: { | |
4115 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
4116 | "(\'-O OpenFlow11\')"); | |
4117 | break; | |
4118 | } | |
4119 | case OFP11_VERSION: | |
4120 | case OFP12_VERSION: | |
4121 | case OFP13_VERSION: { | |
4122 | struct ofp11_table_mod *otm; | |
2e3fa633 | 4123 | |
918f2b82 AZ |
4124 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
4125 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
4126 | otm->table_id = pm->table_id; | |
4127 | otm->config = htonl(pm->config); | |
4128 | break; | |
4129 | } | |
2e3fa633 | 4130 | default: |
9e1fd49b BP |
4131 | NOT_REACHED(); |
4132 | } | |
4133 | ||
4134 | return b; | |
4135 | } | |
2b07c8b1 | 4136 | \f |
6ea4776b JR |
4137 | /* ofputil_role_request */ |
4138 | ||
4139 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
4140 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
4141 | * OFPERR_* value. */ | |
4142 | enum ofperr | |
4143 | ofputil_decode_role_message(const struct ofp_header *oh, | |
4144 | struct ofputil_role_request *rr) | |
4145 | { | |
6ea4776b JR |
4146 | struct ofpbuf b; |
4147 | enum ofpraw raw; | |
4148 | ||
6ea4776b JR |
4149 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4150 | raw = ofpraw_pull_assert(&b); | |
4151 | ||
f4f1ea7e BP |
4152 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
4153 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
4154 | const struct ofp12_role_request *orr = b.l3; | |
6ea4776b | 4155 | |
f4f1ea7e BP |
4156 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
4157 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
4158 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
4159 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
4160 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
4161 | } |
4162 | ||
f4f1ea7e | 4163 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
4164 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
4165 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 4166 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
4167 | rr->have_generation_id = false; |
4168 | rr->generation_id = 0; | |
4169 | } else { | |
4170 | rr->have_generation_id = true; | |
4171 | rr->generation_id = ntohll(orr->generation_id); | |
4172 | } | |
4173 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
4174 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
4175 | const struct nx_role_request *nrr = b.l3; | |
4176 | ||
4177 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
4178 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
4179 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
4180 | ||
4181 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
4182 | nrr->role != htonl(NX_ROLE_MASTER) && | |
4183 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
4184 | return OFPERR_OFPRRFC_BAD_ROLE; | |
4185 | } | |
6ea4776b | 4186 | |
f4f1ea7e BP |
4187 | rr->role = ntohl(nrr->role) + 1; |
4188 | rr->have_generation_id = false; | |
4189 | rr->generation_id = 0; | |
4190 | } else { | |
4191 | NOT_REACHED(); | |
6ea4776b JR |
4192 | } |
4193 | ||
6ea4776b JR |
4194 | return 0; |
4195 | } | |
4196 | ||
4197 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
4198 | * buffer owned by the caller. */ | |
4199 | struct ofpbuf * | |
4200 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 4201 | const struct ofputil_role_request *rr) |
6ea4776b | 4202 | { |
6ea4776b | 4203 | struct ofpbuf *buf; |
6ea4776b JR |
4204 | enum ofpraw raw; |
4205 | ||
f4f1ea7e | 4206 | raw = ofpraw_decode_assert(request); |
6ea4776b | 4207 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 4208 | struct ofp12_role_request *orr; |
6ea4776b | 4209 | |
f4f1ea7e BP |
4210 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
4211 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 4212 | |
147cc9d3 BP |
4213 | orr->role = htonl(rr->role); |
4214 | orr->generation_id = htonll(rr->have_generation_id | |
4215 | ? rr->generation_id | |
4216 | : UINT64_MAX); | |
f4f1ea7e BP |
4217 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
4218 | struct nx_role_request *nrr; | |
4219 | ||
4220 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
4221 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
4222 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
4223 | ||
4224 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
4225 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
4226 | nrr->role = htonl(rr->role - 1); | |
4227 | } else { | |
4228 | NOT_REACHED(); | |
6ea4776b | 4229 | } |
6ea4776b JR |
4230 | |
4231 | return buf; | |
4232 | } | |
4233 | \f | |
00467f73 AC |
4234 | struct ofpbuf * |
4235 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
4236 | enum ofputil_protocol protocol) | |
4237 | { | |
4238 | struct ofpbuf *buf; | |
4239 | enum ofp_version version; | |
4240 | struct ofp14_role_status *rstatus; | |
4241 | ||
4242 | version = ofputil_protocol_to_ofp_version(protocol); | |
4243 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), 0); | |
4244 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
4245 | rstatus->role = htonl(status->role); | |
4246 | rstatus->reason = status->reason; | |
4247 | rstatus->generation_id = htonll(status->generation_id); | |
4248 | ||
4249 | return buf; | |
4250 | } | |
4251 | ||
4252 | enum ofperr | |
4253 | ofputil_decode_role_status(const struct ofp_header *oh, | |
4254 | struct ofputil_role_status *rs) | |
4255 | { | |
4256 | struct ofpbuf b; | |
4257 | enum ofpraw raw; | |
4258 | const struct ofp14_role_status *r; | |
4259 | ||
4260 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4261 | raw = ofpraw_pull_assert(&b); | |
4262 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
4263 | ||
4264 | r = b.l3; | |
4265 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && | |
4266 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
4267 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
4268 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
4269 | return OFPERR_OFPRRFC_BAD_ROLE; | |
4270 | } | |
4271 | ||
4272 | rs->role = ntohl(r->role); | |
4273 | rs->generation_id = ntohll(r->generation_id); | |
4274 | rs->reason = r->reason; | |
4275 | ||
4276 | return 0; | |
4277 | } | |
4278 | ||
307975da SH |
4279 | /* Table stats. */ |
4280 | ||
4281 | static void | |
4282 | ofputil_put_ofp10_table_stats(const struct ofp12_table_stats *in, | |
4283 | struct ofpbuf *buf) | |
4284 | { | |
4285 | struct wc_map { | |
31a9e63f | 4286 | enum ofp10_flow_wildcards wc10; |
307975da SH |
4287 | enum oxm12_ofb_match_fields mf12; |
4288 | }; | |
4289 | ||
4290 | static const struct wc_map wc_map[] = { | |
4291 | { OFPFW10_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4292 | { OFPFW10_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4293 | { OFPFW10_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4294 | { OFPFW10_DL_DST, OFPXMT12_OFB_ETH_DST}, | |
4295 | { OFPFW10_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4296 | { OFPFW10_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4297 | { OFPFW10_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4298 | { OFPFW10_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4299 | { OFPFW10_NW_SRC_MASK, OFPXMT12_OFB_IPV4_SRC }, | |
4300 | { OFPFW10_NW_DST_MASK, OFPXMT12_OFB_IPV4_DST }, | |
4301 | { OFPFW10_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4302 | { OFPFW10_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4303 | }; | |
4304 | ||
4305 | struct ofp10_table_stats *out; | |
4306 | const struct wc_map *p; | |
4307 | ||
3bdc692b | 4308 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4309 | out->table_id = in->table_id; |
3bdc692b | 4310 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4311 | out->wildcards = 0; |
4312 | for (p = wc_map; p < &wc_map[ARRAY_SIZE(wc_map)]; p++) { | |
4313 | if (in->wildcards & htonll(1ULL << p->mf12)) { | |
4314 | out->wildcards |= htonl(p->wc10); | |
4315 | } | |
4316 | } | |
4317 | out->max_entries = in->max_entries; | |
4318 | out->active_count = in->active_count; | |
4319 | put_32aligned_be64(&out->lookup_count, in->lookup_count); | |
4320 | put_32aligned_be64(&out->matched_count, in->matched_count); | |
4321 | } | |
4322 | ||
4323 | static ovs_be32 | |
4324 | oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12) | |
4325 | { | |
4326 | struct map { | |
4327 | enum ofp11_flow_match_fields fmf11; | |
4328 | enum oxm12_ofb_match_fields mf12; | |
4329 | }; | |
4330 | ||
4331 | static const struct map map[] = { | |
4332 | { OFPFMF11_IN_PORT, OFPXMT12_OFB_IN_PORT }, | |
4333 | { OFPFMF11_DL_VLAN, OFPXMT12_OFB_VLAN_VID }, | |
4334 | { OFPFMF11_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP }, | |
4335 | { OFPFMF11_DL_TYPE, OFPXMT12_OFB_ETH_TYPE }, | |
4336 | { OFPFMF11_NW_TOS, OFPXMT12_OFB_IP_DSCP }, | |
4337 | { OFPFMF11_NW_PROTO, OFPXMT12_OFB_IP_PROTO }, | |
4338 | { OFPFMF11_TP_SRC, OFPXMT12_OFB_TCP_SRC }, | |
4339 | { OFPFMF11_TP_DST, OFPXMT12_OFB_TCP_DST }, | |
4340 | { OFPFMF11_MPLS_LABEL, OFPXMT12_OFB_MPLS_LABEL }, | |
4341 | { OFPFMF11_MPLS_TC, OFPXMT12_OFB_MPLS_TC }, | |
4342 | /* I don't know what OFPFMF11_TYPE means. */ | |
4343 | { OFPFMF11_DL_SRC, OFPXMT12_OFB_ETH_SRC }, | |
4344 | { OFPFMF11_DL_DST, OFPXMT12_OFB_ETH_DST }, | |
4345 | { OFPFMF11_NW_SRC, OFPXMT12_OFB_IPV4_SRC }, | |
4346 | { OFPFMF11_NW_DST, OFPXMT12_OFB_IPV4_DST }, | |
4347 | { OFPFMF11_METADATA, OFPXMT12_OFB_METADATA }, | |
4348 | }; | |
4349 | ||
4350 | const struct map *p; | |
4351 | uint32_t fmf11; | |
4352 | ||
4353 | fmf11 = 0; | |
4354 | for (p = map; p < &map[ARRAY_SIZE(map)]; p++) { | |
4355 | if (oxm12 & htonll(1ULL << p->mf12)) { | |
4356 | fmf11 |= p->fmf11; | |
4357 | } | |
4358 | } | |
4359 | return htonl(fmf11); | |
4360 | } | |
4361 | ||
4362 | static void | |
4363 | ofputil_put_ofp11_table_stats(const struct ofp12_table_stats *in, | |
4364 | struct ofpbuf *buf) | |
4365 | { | |
4366 | struct ofp11_table_stats *out; | |
4367 | ||
3bdc692b | 4368 | out = ofpbuf_put_zeros(buf, sizeof *out); |
307975da | 4369 | out->table_id = in->table_id; |
3bdc692b | 4370 | ovs_strlcpy(out->name, in->name, sizeof out->name); |
307975da SH |
4371 | out->wildcards = oxm12_to_ofp11_flow_match_fields(in->wildcards); |
4372 | out->match = oxm12_to_ofp11_flow_match_fields(in->match); | |
4373 | out->instructions = in->instructions; | |
4374 | out->write_actions = in->write_actions; | |
4375 | out->apply_actions = in->apply_actions; | |
4376 | out->config = in->config; | |
4377 | out->max_entries = in->max_entries; | |
4378 | out->active_count = in->active_count; | |
4379 | out->lookup_count = in->lookup_count; | |
4380 | out->matched_count = in->matched_count; | |
4381 | } | |
4382 | ||
6240624b BP |
4383 | static void |
4384 | ofputil_put_ofp12_table_stats(const struct ofp12_table_stats *in, | |
4385 | struct ofpbuf *buf) | |
4386 | { | |
4387 | struct ofp12_table_stats *out = ofpbuf_put(buf, in, sizeof *in); | |
4388 | ||
4389 | /* Trim off OF1.3-only capabilities. */ | |
4390 | out->match &= htonll(OFPXMT12_MASK); | |
4391 | out->wildcards &= htonll(OFPXMT12_MASK); | |
4392 | out->write_setfields &= htonll(OFPXMT12_MASK); | |
4393 | out->apply_setfields &= htonll(OFPXMT12_MASK); | |
4394 | } | |
4395 | ||
2e1ae200 JR |
4396 | static void |
4397 | ofputil_put_ofp13_table_stats(const struct ofp12_table_stats *in, | |
4398 | struct ofpbuf *buf) | |
4399 | { | |
4400 | struct ofp13_table_stats *out; | |
4401 | ||
4402 | /* OF 1.3 splits table features off the ofp_table_stats, | |
4403 | * so there is not much here. */ | |
4404 | ||
4405 | out = ofpbuf_put_uninit(buf, sizeof *out); | |
4406 | out->table_id = in->table_id; | |
4407 | out->active_count = in->active_count; | |
4408 | out->lookup_count = in->lookup_count; | |
4409 | out->matched_count = in->matched_count; | |
4410 | } | |
4411 | ||
307975da SH |
4412 | struct ofpbuf * |
4413 | ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats[], int n, | |
4414 | const struct ofp_header *request) | |
4415 | { | |
4416 | struct ofpbuf *reply; | |
4417 | int i; | |
4418 | ||
4419 | reply = ofpraw_alloc_stats_reply(request, n * sizeof *stats); | |
4420 | ||
6240624b BP |
4421 | for (i = 0; i < n; i++) { |
4422 | switch ((enum ofp_version) request->version) { | |
4423 | case OFP10_VERSION: | |
307975da | 4424 | ofputil_put_ofp10_table_stats(&stats[i], reply); |
6240624b | 4425 | break; |
307975da | 4426 | |
6240624b | 4427 | case OFP11_VERSION: |
307975da | 4428 | ofputil_put_ofp11_table_stats(&stats[i], reply); |
6240624b | 4429 | break; |
307975da | 4430 | |
6240624b BP |
4431 | case OFP12_VERSION: |
4432 | ofputil_put_ofp12_table_stats(&stats[i], reply); | |
4433 | break; | |
307975da | 4434 | |
6240624b | 4435 | case OFP13_VERSION: |
2e1ae200 | 4436 | ofputil_put_ofp13_table_stats(&stats[i], reply); |
6240624b | 4437 | break; |
2e1ae200 | 4438 | |
6240624b BP |
4439 | default: |
4440 | NOT_REACHED(); | |
4441 | } | |
307975da SH |
4442 | } |
4443 | ||
4444 | return reply; | |
4445 | } | |
4446 | \f | |
2b07c8b1 BP |
4447 | /* ofputil_flow_monitor_request */ |
4448 | ||
4449 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
4450 | * ofputil_flow_monitor_request in 'rq'. | |
4451 | * | |
4452 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
4453 | * message. Calling this function multiple times for a single 'msg' iterates | |
4454 | * through the requests. The caller must initially leave 'msg''s layer | |
4455 | * pointers null and not modify them between calls. | |
4456 | * | |
4457 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
4458 | * otherwise an OFPERR_* value. */ | |
4459 | int | |
4460 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
4461 | struct ofpbuf *msg) | |
4462 | { | |
4463 | struct nx_flow_monitor_request *nfmr; | |
4464 | uint16_t flags; | |
4465 | ||
4466 | if (!msg->l2) { | |
4467 | msg->l2 = msg->data; | |
982697a4 | 4468 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
4469 | } |
4470 | ||
4471 | if (!msg->size) { | |
4472 | return EOF; | |
4473 | } | |
4474 | ||
4475 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
4476 | if (!nfmr) { | |
4477 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %zu " | |
4478 | "leftover bytes at end", msg->size); | |
4479 | return OFPERR_OFPBRC_BAD_LEN; | |
4480 | } | |
4481 | ||
4482 | flags = ntohs(nfmr->flags); | |
4483 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
4484 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
4485 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
4486 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
4487 | flags); | |
4488 | return OFPERR_NXBRC_FM_BAD_FLAGS; | |
4489 | } | |
4490 | ||
4491 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
4492 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4493 | } | |
4494 | ||
4495 | rq->id = ntohl(nfmr->id); | |
4496 | rq->flags = flags; | |
4e022ec0 | 4497 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
4498 | rq->table_id = nfmr->table_id; |
4499 | ||
81a76618 | 4500 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
4501 | } |
4502 | ||
4503 | void | |
4504 | ofputil_append_flow_monitor_request( | |
4505 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
4506 | { | |
4507 | struct nx_flow_monitor_request *nfmr; | |
4508 | size_t start_ofs; | |
4509 | int match_len; | |
4510 | ||
4511 | if (!msg->size) { | |
982697a4 | 4512 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
4513 | } |
4514 | ||
4515 | start_ofs = msg->size; | |
4516 | ofpbuf_put_zeros(msg, sizeof *nfmr); | |
7623f4dd | 4517 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
4518 | |
4519 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
4520 | nfmr->id = htonl(rq->id); | |
4521 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 4522 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
4523 | nfmr->match_len = htons(match_len); |
4524 | nfmr->table_id = rq->table_id; | |
4525 | } | |
4526 | ||
4527 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
4528 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 4529 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
4530 | * |
4531 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
4532 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
4533 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
4534 | * will point into the 'ofpacts' buffer. | |
4535 | * | |
4536 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
4537 | * this function multiple times for a single 'msg' iterates through the | |
4538 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
4539 | * not modify them between calls. | |
4540 | * | |
4541 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
4542 | * otherwise an OFPERR_* value. */ | |
4543 | int | |
4544 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
4545 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
4546 | { | |
4547 | struct nx_flow_update_header *nfuh; | |
4548 | unsigned int length; | |
e3f8f887 | 4549 | struct ofp_header *oh; |
2b07c8b1 BP |
4550 | |
4551 | if (!msg->l2) { | |
4552 | msg->l2 = msg->data; | |
982697a4 | 4553 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
4554 | } |
4555 | ||
4556 | if (!msg->size) { | |
4557 | return EOF; | |
4558 | } | |
4559 | ||
4560 | if (msg->size < sizeof(struct nx_flow_update_header)) { | |
4561 | goto bad_len; | |
4562 | } | |
4563 | ||
e3f8f887 JR |
4564 | oh = msg->l2; |
4565 | ||
2b07c8b1 BP |
4566 | nfuh = msg->data; |
4567 | update->event = ntohs(nfuh->event); | |
4568 | length = ntohs(nfuh->length); | |
4569 | if (length > msg->size || length % 8) { | |
4570 | goto bad_len; | |
4571 | } | |
4572 | ||
4573 | if (update->event == NXFME_ABBREV) { | |
4574 | struct nx_flow_update_abbrev *nfua; | |
4575 | ||
4576 | if (length != sizeof *nfua) { | |
4577 | goto bad_len; | |
4578 | } | |
4579 | ||
4580 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
4581 | update->xid = nfua->xid; | |
4582 | return 0; | |
4583 | } else if (update->event == NXFME_ADDED | |
4584 | || update->event == NXFME_DELETED | |
4585 | || update->event == NXFME_MODIFIED) { | |
4586 | struct nx_flow_update_full *nfuf; | |
4587 | unsigned int actions_len; | |
4588 | unsigned int match_len; | |
4589 | enum ofperr error; | |
4590 | ||
4591 | if (length < sizeof *nfuf) { | |
4592 | goto bad_len; | |
4593 | } | |
4594 | ||
4595 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
4596 | match_len = ntohs(nfuf->match_len); | |
4597 | if (sizeof *nfuf + match_len > length) { | |
4598 | goto bad_len; | |
4599 | } | |
4600 | ||
4601 | update->reason = ntohs(nfuf->reason); | |
4602 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
4603 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
4604 | update->table_id = nfuf->table_id; | |
4605 | update->cookie = nfuf->cookie; | |
81a76618 | 4606 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 4607 | |
81a76618 | 4608 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
4609 | if (error) { |
4610 | return error; | |
4611 | } | |
4612 | ||
4613 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
4614 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
4615 | ofpacts); | |
2b07c8b1 BP |
4616 | if (error) { |
4617 | return error; | |
4618 | } | |
4619 | ||
4620 | update->ofpacts = ofpacts->data; | |
4621 | update->ofpacts_len = ofpacts->size; | |
4622 | return 0; | |
4623 | } else { | |
4624 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
4625 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
4626 | ntohs(nfuh->event)); | |
15549878 | 4627 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
4628 | } |
4629 | ||
4630 | bad_len: | |
4631 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %zu " | |
4632 | "leftover bytes at end", msg->size); | |
4633 | return OFPERR_OFPBRC_BAD_LEN; | |
4634 | } | |
4635 | ||
4636 | uint32_t | |
4637 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
4638 | { | |
982697a4 BP |
4639 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
4640 | ||
4641 | return ntohl(cancel->id); | |
2b07c8b1 | 4642 | } |
9e1fd49b | 4643 | |
2b07c8b1 BP |
4644 | struct ofpbuf * |
4645 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
4646 | { | |
4647 | struct nx_flow_monitor_cancel *nfmc; | |
4648 | struct ofpbuf *msg; | |
4649 | ||
982697a4 BP |
4650 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
4651 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
4652 | nfmc->id = htonl(id); |
4653 | return msg; | |
4654 | } | |
4655 | ||
4656 | void | |
4657 | ofputil_start_flow_update(struct list *replies) | |
4658 | { | |
4659 | struct ofpbuf *msg; | |
4660 | ||
982697a4 BP |
4661 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
4662 | htonl(0), 1024); | |
2b07c8b1 BP |
4663 | |
4664 | list_init(replies); | |
4665 | list_push_back(replies, &msg->list_node); | |
4666 | } | |
4667 | ||
4668 | void | |
4669 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
4670 | struct list *replies) | |
4671 | { | |
4672 | struct nx_flow_update_header *nfuh; | |
4673 | struct ofpbuf *msg; | |
4674 | size_t start_ofs; | |
e3f8f887 | 4675 | enum ofp_version version; |
2b07c8b1 BP |
4676 | |
4677 | msg = ofpbuf_from_list(list_back(replies)); | |
4678 | start_ofs = msg->size; | |
e3f8f887 | 4679 | version = ((struct ofp_header *)msg->l2)->version; |
2b07c8b1 BP |
4680 | |
4681 | if (update->event == NXFME_ABBREV) { | |
4682 | struct nx_flow_update_abbrev *nfua; | |
4683 | ||
4684 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
4685 | nfua->xid = update->xid; | |
4686 | } else { | |
4687 | struct nx_flow_update_full *nfuf; | |
4688 | int match_len; | |
4689 | ||
4690 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 4691 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
4692 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
4693 | version); | |
2b07c8b1 BP |
4694 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
4695 | nfuf->reason = htons(update->reason); | |
81a76618 | 4696 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
4697 | nfuf->idle_timeout = htons(update->idle_timeout); |
4698 | nfuf->hard_timeout = htons(update->hard_timeout); | |
4699 | nfuf->match_len = htons(match_len); | |
4700 | nfuf->table_id = update->table_id; | |
4701 | nfuf->cookie = update->cookie; | |
4702 | } | |
4703 | ||
4704 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
4705 | nfuh->length = htons(msg->size - start_ofs); | |
4706 | nfuh->event = htons(update->event); | |
4707 | ||
982697a4 | 4708 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
4709 | } |
4710 | \f | |
c6a93eb7 | 4711 | struct ofpbuf * |
de0f3156 SH |
4712 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
4713 | enum ofputil_protocol protocol) | |
c6a93eb7 | 4714 | { |
de0f3156 | 4715 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
4716 | struct ofpbuf *msg; |
4717 | size_t size; | |
4718 | ||
982697a4 | 4719 | size = po->ofpacts_len; |
c6a93eb7 BP |
4720 | if (po->buffer_id == UINT32_MAX) { |
4721 | size += po->packet_len; | |
4722 | } | |
4723 | ||
de0f3156 SH |
4724 | switch (ofp_version) { |
4725 | case OFP10_VERSION: { | |
31a9e63f | 4726 | struct ofp10_packet_out *opo; |
de0f3156 SH |
4727 | size_t actions_ofs; |
4728 | ||
4729 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
4730 | ofpbuf_put_zeros(msg, sizeof *opo); | |
4731 | actions_ofs = msg->size; | |
e3f8f887 JR |
4732 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
4733 | ofp_version); | |
de0f3156 SH |
4734 | |
4735 | opo = msg->l3; | |
4736 | opo->buffer_id = htonl(po->buffer_id); | |
4e022ec0 | 4737 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
de0f3156 SH |
4738 | opo->actions_len = htons(msg->size - actions_ofs); |
4739 | break; | |
4740 | } | |
f25d0cf3 | 4741 | |
de0f3156 | 4742 | case OFP11_VERSION: |
2e1ae200 JR |
4743 | case OFP12_VERSION: |
4744 | case OFP13_VERSION: { | |
7c1b1a0d SH |
4745 | struct ofp11_packet_out *opo; |
4746 | size_t len; | |
4747 | ||
4748 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
4749 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
4750 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
4751 | ofp_version); | |
7c1b1a0d SH |
4752 | opo = msg->l3; |
4753 | opo->buffer_id = htonl(po->buffer_id); | |
4754 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
4755 | opo->actions_len = htons(len); | |
4756 | break; | |
4757 | } | |
4758 | ||
de0f3156 SH |
4759 | default: |
4760 | NOT_REACHED(); | |
4761 | } | |
f25d0cf3 | 4762 | |
c6a93eb7 BP |
4763 | if (po->buffer_id == UINT32_MAX) { |
4764 | ofpbuf_put(msg, po->packet, po->packet_len); | |
4765 | } | |
f25d0cf3 | 4766 | |
982697a4 | 4767 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
4768 | |
4769 | return msg; | |
4770 | } | |
d1e2cf21 | 4771 | \f |
fa37b408 BP |
4772 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
4773 | struct ofpbuf * | |
1a126c0c | 4774 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 4775 | { |
1a126c0c | 4776 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 4777 | htonl(0), 0); |
fa37b408 BP |
4778 | } |
4779 | ||
4780 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
4781 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
4782 | struct ofpbuf * | |
4783 | make_echo_reply(const struct ofp_header *rq) | |
4784 | { | |
982697a4 BP |
4785 | struct ofpbuf rq_buf; |
4786 | struct ofpbuf *reply; | |
4787 | ||
4788 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
4789 | ofpraw_pull_assert(&rq_buf); | |
4790 | ||
4791 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); | |
4792 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
4793 | return reply; | |
fa37b408 BP |
4794 | } |
4795 | ||
efb80167 | 4796 | struct ofpbuf * |
a0ae0b6e | 4797 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 4798 | { |
a0ae0b6e SH |
4799 | enum ofpraw type; |
4800 | ||
4801 | switch (ofp_version) { | |
2e1ae200 | 4802 | case OFP13_VERSION: |
a0ae0b6e SH |
4803 | case OFP12_VERSION: |
4804 | case OFP11_VERSION: | |
4805 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
4806 | break; | |
4807 | ||
4808 | case OFP10_VERSION: | |
4809 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
4810 | break; | |
4811 | ||
4812 | default: | |
4813 | NOT_REACHED(); | |
4814 | } | |
4815 | ||
4816 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
4817 | } |
4818 | ||
7257b535 BP |
4819 | const char * |
4820 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
4821 | { | |
4822 | switch (flags & OFPC_FRAG_MASK) { | |
4823 | case OFPC_FRAG_NORMAL: return "normal"; | |
4824 | case OFPC_FRAG_DROP: return "drop"; | |
4825 | case OFPC_FRAG_REASM: return "reassemble"; | |
4826 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
4827 | } | |
4828 | ||
4829 | NOT_REACHED(); | |
4830 | } | |
4831 | ||
4832 | bool | |
4833 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
4834 | { | |
4835 | if (!strcasecmp(s, "normal")) { | |
4836 | *flags = OFPC_FRAG_NORMAL; | |
4837 | } else if (!strcasecmp(s, "drop")) { | |
4838 | *flags = OFPC_FRAG_DROP; | |
4839 | } else if (!strcasecmp(s, "reassemble")) { | |
4840 | *flags = OFPC_FRAG_REASM; | |
4841 | } else if (!strcasecmp(s, "nx-match")) { | |
4842 | *flags = OFPC_FRAG_NX_MATCH; | |
4843 | } else { | |
4844 | return false; | |
4845 | } | |
4846 | return true; | |
4847 | } | |
4848 | ||
7b7503ea BP |
4849 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
4850 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
4851 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 4852 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
4853 | * |
4854 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
4855 | enum ofperr | |
4e022ec0 | 4856 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
4857 | { |
4858 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
4859 | ||
4e022ec0 AW |
4860 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
4861 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 4862 | return 0; |
4e022ec0 AW |
4863 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
4864 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
4865 | return 0; |
4866 | } else { | |
bc146369 | 4867 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
4868 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
4869 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
4870 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
4871 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
4872 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
4873 | } | |
4874 | } | |
4875 | ||
4876 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
4877 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
4878 | * | |
4879 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
4880 | ovs_be32 | |
4e022ec0 | 4881 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 4882 | { |
4e022ec0 AW |
4883 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
4884 | ? ofp_to_u16(ofp10_port) | |
4885 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
4886 | } |
4887 | ||
39dc9082 BP |
4888 | #define OFPUTIL_NAMED_PORTS \ |
4889 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
4890 | OFPUTIL_NAMED_PORT(TABLE) \ | |
4891 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
4892 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
4893 | OFPUTIL_NAMED_PORT(ALL) \ | |
4894 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
4895 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
7f05e7ab JR |
4896 | OFPUTIL_NAMED_PORT(ANY) |
4897 | ||
4898 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
4899 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
4900 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
4901 | OFPUTIL_NAMED_PORT(NONE) |
4902 | ||
8010100b BP |
4903 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
4904 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
4905 | * (e.g. "LOCAL"). | |
c6100d92 | 4906 | * |
8010100b BP |
4907 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
4908 | * or name. The caller should issue an error message in this case, because | |
4909 | * this function usually does not. (This gives the caller an opportunity to | |
4910 | * look up the port name another way, e.g. by contacting the switch and listing | |
4911 | * the names of all its ports). | |
c6100d92 BP |
4912 | * |
4913 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
4914 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
4915 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 4916 | bool |
4e022ec0 | 4917 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 4918 | { |
4e022ec0 | 4919 | uint32_t port32; |
c6100d92 | 4920 | |
8010100b | 4921 | *portp = 0; |
c6100d92 | 4922 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
4923 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
4924 | /* Pass. */ | |
4925 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
4926 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
4927 | "be translated to %u when talking to an OF1.1 or " | |
4928 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 4929 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
4930 | char name[OFP_MAX_PORT_NAME_LEN]; |
4931 | ||
4932 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
4933 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
4934 | "for compatibility with OpenFlow 1.1 and later", | |
4935 | name, port32); | |
4e022ec0 | 4936 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 4937 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 4938 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 4939 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 4940 | return false; |
c6100d92 | 4941 | } else { |
4e022ec0 | 4942 | port32 -= OFPP11_OFFSET; |
c6100d92 | 4943 | } |
4e022ec0 AW |
4944 | |
4945 | *portp = u16_to_ofp(port32); | |
4946 | return true; | |
c6100d92 BP |
4947 | } else { |
4948 | struct pair { | |
4949 | const char *name; | |
4e022ec0 | 4950 | ofp_port_t value; |
c6100d92 BP |
4951 | }; |
4952 | static const struct pair pairs[] = { | |
39dc9082 | 4953 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 4954 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 4955 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
4956 | }; |
4957 | const struct pair *p; | |
39dc9082 | 4958 | |
c6100d92 BP |
4959 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
4960 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
4961 | *portp = p->value; |
4962 | return true; | |
c6100d92 | 4963 | } |
39dc9082 | 4964 | } |
8010100b | 4965 | return false; |
39dc9082 | 4966 | } |
39dc9082 BP |
4967 | } |
4968 | ||
4969 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
4970 | * Most ports' string representation is just the port number, but for special | |
4971 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
4972 | void | |
4e022ec0 | 4973 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 4974 | { |
28b11432 BP |
4975 | char name[OFP_MAX_PORT_NAME_LEN]; |
4976 | ||
4977 | ofputil_port_to_string(port, name, sizeof name); | |
4978 | ds_put_cstr(s, name); | |
4979 | } | |
39dc9082 | 4980 | |
28b11432 BP |
4981 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
4982 | * representation of OpenFlow port number 'port'. Most ports are represented | |
4983 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
4984 | * by name, e.g. "LOCAL". */ | |
4985 | void | |
4986 | ofputil_port_to_string(ofp_port_t port, | |
4987 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
4988 | { | |
39dc9082 | 4989 | switch (port) { |
28b11432 BP |
4990 | #define OFPUTIL_NAMED_PORT(NAME) \ |
4991 | case OFPP_##NAME: \ | |
4992 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
4993 | break; | |
39dc9082 BP |
4994 | OFPUTIL_NAMED_PORTS |
4995 | #undef OFPUTIL_NAMED_PORT | |
4996 | ||
4997 | default: | |
28b11432 BP |
4998 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
4999 | break; | |
39dc9082 | 5000 | } |
39dc9082 BP |
5001 | } |
5002 | ||
7395c052 NZ |
5003 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
5004 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
5005 | * (either "ANY" or "ALL"). | |
5006 | * | |
5007 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
5008 | * name. */ | |
5009 | bool | |
5010 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
5011 | { | |
5012 | if (!strcasecmp(s, "any")) { | |
5013 | *group_idp = OFPG11_ANY; | |
5014 | } else if (!strcasecmp(s, "all")) { | |
5015 | *group_idp = OFPG11_ALL; | |
5016 | } else if (!str_to_uint(s, 10, group_idp)) { | |
5017 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
5018 | "32-bit nonnegative integers or the keywords ANY or " | |
5019 | "ALL.)", s); | |
5020 | return false; | |
5021 | } | |
5022 | ||
5023 | return true; | |
5024 | } | |
5025 | ||
5026 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
5027 | * Most groups' string representation is just the number, but for special | |
5028 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
5029 | void | |
5030 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
5031 | { | |
5032 | char name[MAX_GROUP_NAME_LEN]; | |
5033 | ||
5034 | ofputil_group_to_string(group_id, name, sizeof name); | |
5035 | ds_put_cstr(s, name); | |
5036 | } | |
5037 | ||
5038 | ||
5039 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
5040 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
5041 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
5042 | * by name, e.g. "ALL". */ | |
5043 | void | |
5044 | ofputil_group_to_string(uint32_t group_id, | |
5045 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
5046 | { | |
5047 | switch (group_id) { | |
5048 | case OFPG11_ALL: | |
5049 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
5050 | break; | |
5051 | ||
5052 | case OFPG11_ANY: | |
5053 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
5054 | break; | |
5055 | ||
5056 | default: | |
5057 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
5058 | break; | |
5059 | } | |
5060 | } | |
5061 | ||
2be393ed JP |
5062 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
5063 | * 'ofp_version', tries to pull the first element from the array. If | |
5064 | * successful, initializes '*pp' with an abstract representation of the | |
5065 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
5066 | * On an error, returns a positive OFPERR_* value. */ | |
5067 | int | |
2e3fa633 | 5068 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
5069 | struct ofputil_phy_port *pp) |
5070 | { | |
2e3fa633 SH |
5071 | switch (ofp_version) { |
5072 | case OFP10_VERSION: { | |
2be393ed JP |
5073 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
5074 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
5075 | } |
5076 | case OFP11_VERSION: | |
2e1ae200 JR |
5077 | case OFP12_VERSION: |
5078 | case OFP13_VERSION: { | |
2be393ed JP |
5079 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
5080 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
5081 | } | |
2e3fa633 SH |
5082 | default: |
5083 | NOT_REACHED(); | |
5084 | } | |
2be393ed JP |
5085 | } |
5086 | ||
5087 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type | |
5088 | * 'ofp_version', returns the number of elements. */ | |
5089 | size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b) | |
5090 | { | |
5b5a3a67 | 5091 | return b->size / ofputil_get_phy_port_size(ofp_version); |
2be393ed JP |
5092 | } |
5093 | ||
e3f8f887 JR |
5094 | /* ofp-util.def lists the mapping from names to action. */ |
5095 | static const char *const names[OFPUTIL_N_ACTIONS] = { | |
5096 | NULL, | |
3ddcaf2d BP |
5097 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME, |
5098 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, | |
5099 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME, | |
e23ae585 | 5100 | #include "ofp-util.def" |
e3f8f887 | 5101 | }; |
e23ae585 | 5102 | |
e3f8f887 JR |
5103 | /* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if |
5104 | * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 | |
5105 | * if 'name' is not the name of any action. */ | |
5106 | int | |
5107 | ofputil_action_code_from_name(const char *name) | |
5108 | { | |
a00d4bd0 | 5109 | const char *const *p; |
e23ae585 BP |
5110 | |
5111 | for (p = names; p < &names[ARRAY_SIZE(names)]; p++) { | |
5112 | if (*p && !strcasecmp(name, *p)) { | |
5113 | return p - names; | |
5114 | } | |
5115 | } | |
5116 | return -1; | |
5117 | } | |
5118 | ||
e3f8f887 JR |
5119 | /* Returns name corresponding to the 'enum ofputil_action_code', |
5120 | * or "Unkonwn action", if the name is not available. */ | |
5121 | const char * | |
5122 | ofputil_action_name_from_code(enum ofputil_action_code code) | |
5123 | { | |
5124 | return code < (int)OFPUTIL_N_ACTIONS && names[code] ? names[code] | |
5125 | : "Unknown action"; | |
5126 | } | |
5127 | ||
93996add BP |
5128 | /* Appends an action of the type specified by 'code' to 'buf' and returns the |
5129 | * action. Initializes the parts of 'action' that identify it as having type | |
5130 | * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that | |
5131 | * have variable length, the length used and cleared is that of struct | |
5132 | * <STRUCT>. */ | |
5133 | void * | |
5134 | ofputil_put_action(enum ofputil_action_code code, struct ofpbuf *buf) | |
5135 | { | |
5136 | switch (code) { | |
690a61c5 BP |
5137 | case OFPUTIL_ACTION_INVALID: |
5138 | NOT_REACHED(); | |
5139 | ||
3ddcaf2d BP |
5140 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
5141 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5142 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
93996add BP |
5143 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); |
5144 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
5145 | case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf); | |
5146 | #include "ofp-util.def" | |
5147 | } | |
5148 | NOT_REACHED(); | |
5149 | } | |
5150 | ||
08f94c0e | 5151 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \ |
93996add BP |
5152 | void \ |
5153 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5154 | { \ | |
5155 | memset(s, 0, sizeof *s); \ | |
5156 | s->type = htons(ENUM); \ | |
5157 | s->len = htons(sizeof *s); \ | |
5158 | } \ | |
5159 | \ | |
5160 | struct STRUCT * \ | |
5161 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5162 | { \ | |
5163 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5164 | ofputil_init_##ENUM(s); \ | |
5165 | return s; \ | |
5166 | } | |
3ddcaf2d BP |
5167 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5168 | OFPAT10_ACTION(ENUM, STRUCT, NAME) | |
93996add BP |
5169 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
5170 | void \ | |
5171 | ofputil_init_##ENUM(struct STRUCT *s) \ | |
5172 | { \ | |
5173 | memset(s, 0, sizeof *s); \ | |
08f94c0e | 5174 | s->type = htons(OFPAT10_VENDOR); \ |
93996add BP |
5175 | s->len = htons(sizeof *s); \ |
5176 | s->vendor = htonl(NX_VENDOR_ID); \ | |
5177 | s->subtype = htons(ENUM); \ | |
5178 | } \ | |
5179 | \ | |
5180 | struct STRUCT * \ | |
5181 | ofputil_put_##ENUM(struct ofpbuf *buf) \ | |
5182 | { \ | |
5183 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
5184 | ofputil_init_##ENUM(s); \ | |
5185 | return s; \ | |
5186 | } | |
5187 | #include "ofp-util.def" | |
5188 | ||
3cbd9931 | 5189 | static void |
81a76618 | 5190 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
5191 | { |
5192 | enum { | |
5193 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
5194 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
5195 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 5196 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
5197 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
5198 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 5199 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
5200 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
5201 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
5202 | } may_match; |
5203 | ||
5204 | struct flow_wildcards wc; | |
5205 | ||
5206 | /* Figure out what fields may be matched. */ | |
81a76618 | 5207 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 5208 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
5209 | if (match->flow.nw_proto == IPPROTO_TCP || |
5210 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 5211 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 5212 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
5213 | may_match |= MAY_TP_ADDR; |
5214 | } | |
81a76618 | 5215 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 5216 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 5217 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
5218 | match->flow.nw_proto == IPPROTO_UDP || |
5219 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 5220 | may_match |= MAY_TP_ADDR; |
81a76618 | 5221 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 5222 | may_match |= MAY_TP_ADDR; |
81a76618 | 5223 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 5224 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 5225 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
5226 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
5227 | } | |
5228 | } | |
8087f5ff MM |
5229 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
5230 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 5231 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
5232 | } else if (eth_type_mpls(match->flow.dl_type)) { |
5233 | may_match = MAY_MPLS; | |
1c0b7503 | 5234 | } else { |
b459a924 BP |
5235 | may_match = 0; |
5236 | } | |
5237 | ||
5238 | /* Clear the fields that may not be matched. */ | |
81a76618 | 5239 | wc = match->wc; |
b459a924 | 5240 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 5241 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
5242 | } |
5243 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 5244 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
5245 | } |
5246 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 5247 | wc.masks.nw_proto = 0; |
b459a924 | 5248 | } |
9e44d715 | 5249 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
5250 | wc.masks.nw_tos = 0; |
5251 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
5252 | } |
5253 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 5254 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
5255 | } |
5256 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 5257 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 5258 | } |
d78477ec | 5259 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
5260 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
5261 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
5262 | } |
5263 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 5264 | wc.masks.nd_target = in6addr_any; |
b459a924 | 5265 | } |
b02475c5 SH |
5266 | if (!(may_match & MAY_MPLS)) { |
5267 | wc.masks.mpls_lse = htonl(0); | |
b02475c5 | 5268 | } |
b459a924 BP |
5269 | |
5270 | /* Log any changes. */ | |
81a76618 | 5271 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 5272 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 5273 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 5274 | |
81a76618 BP |
5275 | match->wc = wc; |
5276 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
5277 | |
5278 | if (log) { | |
81a76618 | 5279 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
5280 | VLOG_INFO("normalization changed ofp_match, details:"); |
5281 | VLOG_INFO(" pre: %s", pre); | |
5282 | VLOG_INFO("post: %s", post); | |
5283 | free(pre); | |
5284 | free(post); | |
5285 | } | |
fa37b408 | 5286 | } |
3f09c339 | 5287 | } |
26c112c2 | 5288 | |
81a76618 | 5289 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
5290 | * |
5291 | * 1. If the type of level N is known, then only the valid fields for that | |
5292 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 5293 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 5294 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 5295 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5296 | * IPv4 flow. |
5297 | * | |
5298 | * 2. If the type of level N is not known (or not understood by Open | |
5299 | * vSwitch), then no fields at all for that level may be specified. For | |
5300 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 5301 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
5302 | * SCTP flow. |
5303 | * | |
81a76618 | 5304 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
5305 | * message. */ |
5306 | void | |
81a76618 | 5307 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 5308 | { |
81a76618 | 5309 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
5310 | } |
5311 | ||
81a76618 BP |
5312 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
5313 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
5314 | * sense for use on flows received from elsewhere (so that a bug in the program |
5315 | * that sent them can be reported and corrected). */ | |
5316 | void | |
81a76618 | 5317 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 5318 | { |
81a76618 | 5319 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
5320 | } |
5321 | ||
0ff22822 BP |
5322 | /* Parses a key or a key-value pair from '*stringp'. |
5323 | * | |
5324 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
5325 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
5326 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
5327 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
5328 | * terminators. Returns true. | |
5329 | * | |
5330 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
5331 | * NULL and returns false. */ | |
5332 | bool | |
5333 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
5334 | { | |
5335 | char *pos, *key, *value; | |
5336 | size_t key_len; | |
5337 | ||
5338 | pos = *stringp; | |
5339 | pos += strspn(pos, ", \t\r\n"); | |
5340 | if (*pos == '\0') { | |
5341 | *keyp = *valuep = NULL; | |
5342 | return false; | |
5343 | } | |
5344 | ||
5345 | key = pos; | |
5346 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
5347 | if (key[key_len] == ':' || key[key_len] == '=') { | |
5348 | /* The value can be separated by a colon. */ | |
5349 | size_t value_len; | |
5350 | ||
5351 | value = key + key_len + 1; | |
5352 | value_len = strcspn(value, ", \t\r\n"); | |
5353 | pos = value + value_len + (value[value_len] != '\0'); | |
5354 | value[value_len] = '\0'; | |
5355 | } else if (key[key_len] == '(') { | |
5356 | /* The value can be surrounded by balanced parentheses. The outermost | |
5357 | * set of parentheses is removed. */ | |
5358 | int level = 1; | |
5359 | size_t value_len; | |
5360 | ||
5361 | value = key + key_len + 1; | |
5362 | for (value_len = 0; level > 0; value_len++) { | |
5363 | switch (value[value_len]) { | |
5364 | case '\0': | |
33cadc50 BP |
5365 | level = 0; |
5366 | break; | |
0ff22822 BP |
5367 | |
5368 | case '(': | |
5369 | level++; | |
5370 | break; | |
5371 | ||
5372 | case ')': | |
5373 | level--; | |
5374 | break; | |
5375 | } | |
5376 | } | |
5377 | value[value_len - 1] = '\0'; | |
5378 | pos = value + value_len; | |
5379 | } else { | |
5380 | /* There might be no value at all. */ | |
5381 | value = key + key_len; /* Will become the empty string below. */ | |
5382 | pos = key + key_len + (key[key_len] != '\0'); | |
5383 | } | |
5384 | key[key_len] = '\0'; | |
5385 | ||
5386 | *stringp = pos; | |
5387 | *keyp = key; | |
5388 | *valuep = value; | |
5389 | return true; | |
5390 | } | |
f8e4867e SH |
5391 | |
5392 | /* Encode a dump ports request for 'port', the encoded message | |
2e1ae200 | 5393 | * will be for Open Flow version 'ofp_version'. Returns message |
f8e4867e SH |
5394 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
5395 | struct ofpbuf * | |
4e022ec0 | 5396 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
5397 | { |
5398 | struct ofpbuf *request; | |
5399 | ||
5400 | switch (ofp_version) { | |
5401 | case OFP10_VERSION: { | |
5402 | struct ofp10_port_stats_request *req; | |
5403 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
5404 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 5405 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
5406 | break; |
5407 | } | |
5408 | case OFP11_VERSION: | |
2e1ae200 JR |
5409 | case OFP12_VERSION: |
5410 | case OFP13_VERSION: { | |
f8e4867e SH |
5411 | struct ofp11_port_stats_request *req; |
5412 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
5413 | req = ofpbuf_put_zeros(request, sizeof *req); | |
5414 | req->port_no = ofputil_port_to_ofp11(port); | |
5415 | break; | |
5416 | } | |
5417 | default: | |
5418 | NOT_REACHED(); | |
5419 | } | |
5420 | ||
5421 | return request; | |
5422 | } | |
5423 | ||
5424 | static void | |
5425 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
5426 | struct ofp10_port_stats *ps10) | |
5427 | { | |
4e022ec0 | 5428 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
5429 | memset(ps10->pad, 0, sizeof ps10->pad); |
5430 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
5431 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
5432 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
5433 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
5434 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
5435 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
5436 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
5437 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
5438 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
5439 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
5440 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
5441 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
5442 | } | |
5443 | ||
5444 | static void | |
5445 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
5446 | struct ofp11_port_stats *ps11) | |
5447 | { | |
5448 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
5449 | memset(ps11->pad, 0, sizeof ps11->pad); | |
5450 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
5451 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
5452 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
5453 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
5454 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
5455 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
5456 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
5457 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
5458 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
5459 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
5460 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
5461 | ps11->collisions = htonll(ops->stats.collisions); | |
5462 | } | |
5463 | ||
2e1ae200 JR |
5464 | static void |
5465 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
5466 | struct ofp13_port_stats *ps13) | |
5467 | { | |
5468 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
5469 | ps13->duration_sec = htonl(ops->duration_sec); |
5470 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
5471 | } |
5472 | ||
5473 | ||
ad4c35fe | 5474 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e SH |
5475 | void |
5476 | ofputil_append_port_stat(struct list *replies, | |
5477 | const struct ofputil_port_stats *ops) | |
5478 | { | |
5479 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
5480 | struct ofp_header *oh = msg->data; | |
5481 | ||
5482 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
5483 | case OFP13_VERSION: { |
5484 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5485 | ofputil_port_stats_to_ofp13(ops, reply); | |
5486 | break; | |
5487 | } | |
f8e4867e SH |
5488 | case OFP12_VERSION: |
5489 | case OFP11_VERSION: { | |
5490 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5491 | ofputil_port_stats_to_ofp11(ops, reply); | |
5492 | break; | |
5493 | } | |
5494 | ||
5495 | case OFP10_VERSION: { | |
5496 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
5497 | ofputil_port_stats_to_ofp10(ops, reply); | |
5498 | break; | |
5499 | } | |
5500 | ||
5501 | default: | |
5502 | NOT_REACHED(); | |
5503 | } | |
5504 | } | |
5505 | ||
5506 | static enum ofperr | |
5507 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
5508 | const struct ofp10_port_stats *ps10) | |
5509 | { | |
5510 | memset(ops, 0, sizeof *ops); | |
5511 | ||
4e022ec0 | 5512 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
5513 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
5514 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
5515 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
5516 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
5517 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
5518 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
5519 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
5520 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
5521 | ops->stats.rx_frame_errors = | |
5522 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
5523 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
5524 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
5525 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 5526 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
5527 | |
5528 | return 0; | |
5529 | } | |
5530 | ||
5531 | static enum ofperr | |
5532 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
5533 | const struct ofp11_port_stats *ps11) | |
5534 | { | |
5535 | enum ofperr error; | |
5536 | ||
5537 | memset(ops, 0, sizeof *ops); | |
5538 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
5539 | if (error) { | |
5540 | return error; | |
5541 | } | |
5542 | ||
5543 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
5544 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
5545 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
5546 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
5547 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
5548 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
5549 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
5550 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
5551 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
5552 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
5553 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
5554 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 5555 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
5556 | |
5557 | return 0; | |
5558 | } | |
5559 | ||
2e1ae200 JR |
5560 | static enum ofperr |
5561 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
5562 | const struct ofp13_port_stats *ps13) | |
5563 | { | |
65e0be10 | 5564 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 5565 | if (!error) { |
65e0be10 BP |
5566 | ops->duration_sec = ntohl(ps13->duration_sec); |
5567 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 5568 | } |
2e1ae200 JR |
5569 | return error; |
5570 | } | |
5571 | ||
be0c30df BP |
5572 | static size_t |
5573 | ofputil_get_port_stats_size(enum ofp_version ofp_version) | |
5574 | { | |
5575 | switch (ofp_version) { | |
5576 | case OFP10_VERSION: | |
5577 | return sizeof(struct ofp10_port_stats); | |
5578 | case OFP11_VERSION: | |
5579 | case OFP12_VERSION: | |
5580 | return sizeof(struct ofp11_port_stats); | |
5581 | case OFP13_VERSION: | |
5582 | return sizeof(struct ofp13_port_stats); | |
5583 | default: | |
5584 | NOT_REACHED(); | |
5585 | } | |
5586 | } | |
2e1ae200 | 5587 | |
f8e4867e SH |
5588 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
5589 | * message 'oh'. */ | |
5590 | size_t | |
5591 | ofputil_count_port_stats(const struct ofp_header *oh) | |
5592 | { | |
5593 | struct ofpbuf b; | |
5594 | ||
5595 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5596 | ofpraw_pull_assert(&b); | |
5597 | ||
be0c30df | 5598 | return b.size / ofputil_get_port_stats_size(oh->version); |
f8e4867e SH |
5599 | } |
5600 | ||
5601 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
5602 | * ofputil_port_stats in 'ps'. | |
5603 | * | |
5604 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
5605 | * message. Calling this function multiple times for a single 'msg' iterates | |
5606 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
5607 | * null and not modify them between calls. | |
5608 | * | |
5609 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
5610 | * otherwise a positive errno value. */ | |
5611 | int | |
5612 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
5613 | { | |
5614 | enum ofperr error; | |
5615 | enum ofpraw raw; | |
5616 | ||
5617 | error = (msg->l2 | |
5618 | ? ofpraw_decode(&raw, msg->l2) | |
5619 | : ofpraw_pull(&raw, msg)); | |
5620 | if (error) { | |
5621 | return error; | |
5622 | } | |
5623 | ||
5624 | if (!msg->size) { | |
5625 | return EOF; | |
2e1ae200 JR |
5626 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
5627 | const struct ofp13_port_stats *ps13; | |
5628 | ||
5629 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
5630 | if (!ps13) { | |
5631 | goto bad_len; | |
5632 | } | |
5633 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
5634 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
5635 | const struct ofp11_port_stats *ps11; | |
5636 | ||
5637 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
5638 | if (!ps11) { | |
2e1ae200 | 5639 | goto bad_len; |
f8e4867e SH |
5640 | } |
5641 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
5642 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
5643 | const struct ofp10_port_stats *ps10; | |
5644 | ||
5645 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
5646 | if (!ps10) { | |
2e1ae200 | 5647 | goto bad_len; |
f8e4867e SH |
5648 | } |
5649 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
5650 | } else { | |
5651 | NOT_REACHED(); | |
5652 | } | |
5653 | ||
2e1ae200 JR |
5654 | bad_len: |
5655 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %zu leftover " | |
5656 | "bytes at end", msg->size); | |
5657 | return OFPERR_OFPBRC_BAD_LEN; | |
f8e4867e SH |
5658 | } |
5659 | ||
5660 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
5661 | * port number and stores the latter in '*ofp10_port'. | |
5662 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
5663 | enum ofperr | |
5664 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 5665 | ofp_port_t *ofp10_port) |
f8e4867e SH |
5666 | { |
5667 | switch ((enum ofp_version)request->version) { | |
2e1ae200 | 5668 | case OFP13_VERSION: |
f8e4867e SH |
5669 | case OFP12_VERSION: |
5670 | case OFP11_VERSION: { | |
5671 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
5672 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
5673 | } | |
5674 | ||
5675 | case OFP10_VERSION: { | |
5676 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 5677 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
5678 | return 0; |
5679 | } | |
5680 | ||
5681 | default: | |
5682 | NOT_REACHED(); | |
5683 | } | |
5684 | } | |
64626975 | 5685 | |
7395c052 NZ |
5686 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
5687 | void | |
5688 | ofputil_bucket_list_destroy(struct list *buckets) | |
5689 | { | |
5690 | struct ofputil_bucket *bucket, *next_bucket; | |
5691 | ||
5692 | LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) { | |
5693 | list_remove(&bucket->list_node); | |
5694 | free(bucket->ofpacts); | |
5695 | free(bucket); | |
5696 | } | |
5697 | } | |
5698 | ||
5699 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', | |
5700 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
5701 | * for all groups.) | |
5702 | * | |
5703 | * Group statistics include packet and byte counts for each group. */ | |
5704 | struct ofpbuf * | |
5705 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
5706 | uint32_t group_id) | |
5707 | { | |
5708 | struct ofpbuf *request; | |
5709 | ||
5710 | switch (ofp_version) { | |
5711 | case OFP10_VERSION: | |
5712 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
5713 | "(\'-O OpenFlow11\')"); | |
5714 | case OFP11_VERSION: | |
5715 | case OFP12_VERSION: | |
5716 | case OFP13_VERSION: { | |
5717 | struct ofp11_group_stats_request *req; | |
5718 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
5719 | req = ofpbuf_put_zeros(request, sizeof *req); | |
5720 | req->group_id = htonl(group_id); | |
5721 | break; | |
5722 | } | |
5723 | default: | |
5724 | NOT_REACHED(); | |
5725 | } | |
5726 | ||
5727 | return request; | |
5728 | } | |
5729 | ||
5730 | /* Returns an OpenFlow group description request for OpenFlow version | |
5731 | * 'ofp_version', that requests stats for group 'group_id'. (Use OFPG_ALL to | |
5732 | * request stats for all groups.) | |
5733 | * | |
5734 | * Group descriptions include the bucket and action configuration for each | |
5735 | * group. */ | |
5736 | struct ofpbuf * | |
5737 | ofputil_encode_group_desc_request(enum ofp_version ofp_version) | |
5738 | { | |
5739 | struct ofpbuf *request; | |
5740 | ||
5741 | switch (ofp_version) { | |
5742 | case OFP10_VERSION: | |
5743 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
5744 | "(\'-O OpenFlow11\')"); | |
5745 | case OFP11_VERSION: | |
5746 | case OFP12_VERSION: | |
5747 | case OFP13_VERSION: { | |
5748 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, ofp_version, 0); | |
5749 | break; | |
5750 | } | |
5751 | default: | |
5752 | NOT_REACHED(); | |
5753 | } | |
5754 | ||
5755 | return request; | |
5756 | } | |
5757 | ||
5758 | static void * | |
5759 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *ogs, | |
5760 | size_t base_len, struct list *replies) | |
5761 | { | |
5762 | struct ofp11_bucket_counter *bc11; | |
5763 | struct ofp11_group_stats *gs11; | |
5764 | size_t length; | |
5765 | int i; | |
5766 | ||
5767 | length = base_len + sizeof(struct ofp11_bucket_counter) * ogs->n_buckets; | |
5768 | ||
5769 | gs11 = ofpmp_append(replies, length); | |
5770 | memset(gs11, 0, base_len); | |
5771 | gs11->length = htons(length); | |
5772 | gs11->group_id = htonl(ogs->group_id); | |
5773 | gs11->ref_count = htonl(ogs->ref_count); | |
5774 | gs11->packet_count = htonll(ogs->packet_count); | |
5775 | gs11->byte_count = htonll(ogs->byte_count); | |
5776 | ||
5777 | bc11 = (void *) (((uint8_t *) gs11) + base_len); | |
5778 | for (i = 0; i < ogs->n_buckets; i++) { | |
5779 | const struct bucket_counter *obc = &ogs->bucket_stats[i]; | |
5780 | ||
5781 | bc11[i].packet_count = htonll(obc->packet_count); | |
5782 | bc11[i].byte_count = htonll(obc->byte_count); | |
5783 | } | |
5784 | ||
5785 | return gs11; | |
5786 | } | |
5787 | ||
5788 | static void | |
5789 | ofputil_append_of13_group_stats(const struct ofputil_group_stats *ogs, | |
5790 | struct list *replies) | |
5791 | { | |
5792 | struct ofp13_group_stats *gs13; | |
5793 | ||
5794 | gs13 = ofputil_group_stats_to_ofp11(ogs, sizeof *gs13, replies); | |
5795 | gs13->duration_sec = htonl(ogs->duration_sec); | |
5796 | gs13->duration_nsec = htonl(ogs->duration_nsec); | |
5797 | } | |
5798 | ||
5799 | /* Encodes 'ogs' properly for the format of the list of group statistics | |
5800 | * replies already begun in 'replies' and appends it to the list. 'replies' | |
5801 | * must have originally been initialized with ofpmp_init(). */ | |
5802 | void | |
5803 | ofputil_append_group_stats(struct list *replies, | |
5804 | const struct ofputil_group_stats *ogs) | |
5805 | { | |
5806 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
5807 | struct ofp_header *oh = msg->data; | |
5808 | ||
5809 | switch ((enum ofp_version)oh->version) { | |
5810 | case OFP11_VERSION: | |
5811 | case OFP12_VERSION: | |
5812 | ofputil_group_stats_to_ofp11(ogs, sizeof(struct ofp11_group_stats), | |
5813 | replies); | |
5814 | break; | |
5815 | ||
5816 | case OFP13_VERSION: | |
5817 | ofputil_append_of13_group_stats(ogs, replies); | |
5818 | break; | |
5819 | ||
5820 | case OFP10_VERSION: | |
5821 | default: | |
5822 | NOT_REACHED(); | |
5823 | } | |
5824 | } | |
5825 | ||
5826 | /* Returns an OpenFlow group features request for OpenFlow version | |
5827 | * 'ofp_version'. */ | |
5828 | struct ofpbuf * | |
5829 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
5830 | { | |
5831 | struct ofpbuf *request = NULL; | |
5832 | ||
5833 | switch (ofp_version) { | |
5834 | case OFP10_VERSION: | |
5835 | case OFP11_VERSION: | |
5836 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
5837 | "(\'-O OpenFlow12\')"); | |
5838 | case OFP12_VERSION: | |
5839 | case OFP13_VERSION: { | |
5840 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, | |
5841 | ofp_version, 0); | |
5842 | break; | |
5843 | } | |
5844 | default: | |
5845 | NOT_REACHED(); | |
5846 | } | |
5847 | ||
5848 | return request; | |
5849 | } | |
5850 | ||
5851 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
5852 | * group features request 'request'. */ | |
5853 | struct ofpbuf * | |
5854 | ofputil_encode_group_features_reply( | |
5855 | const struct ofputil_group_features *features, | |
5856 | const struct ofp_header *request) | |
5857 | { | |
5858 | struct ofp12_group_features_stats *ogf; | |
5859 | struct ofpbuf *reply; | |
5860 | ||
5861 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
5862 | request->version, request->xid, 0); | |
5863 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
5864 | ogf->types = htonl(features->types); | |
5865 | ogf->capabilities = htonl(features->capabilities); | |
5866 | ogf->max_groups[0] = htonl(features->max_groups[0]); | |
5867 | ogf->max_groups[1] = htonl(features->max_groups[1]); | |
5868 | ogf->max_groups[2] = htonl(features->max_groups[2]); | |
5869 | ogf->max_groups[3] = htonl(features->max_groups[3]); | |
5870 | ogf->actions[0] = htonl(features->actions[0]); | |
5871 | ogf->actions[1] = htonl(features->actions[1]); | |
5872 | ogf->actions[2] = htonl(features->actions[2]); | |
5873 | ogf->actions[3] = htonl(features->actions[3]); | |
5874 | ||
5875 | return reply; | |
5876 | } | |
5877 | ||
5878 | /* Decodes group features reply 'oh' into 'features'. */ | |
5879 | void | |
5880 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
5881 | struct ofputil_group_features *features) | |
5882 | { | |
5883 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
5884 | ||
5885 | features->types = ntohl(ogf->types); | |
5886 | features->capabilities = ntohl(ogf->capabilities); | |
5887 | features->max_groups[0] = ntohl(ogf->max_groups[0]); | |
5888 | features->max_groups[1] = ntohl(ogf->max_groups[1]); | |
5889 | features->max_groups[2] = ntohl(ogf->max_groups[2]); | |
5890 | features->max_groups[3] = ntohl(ogf->max_groups[3]); | |
5891 | features->actions[0] = ntohl(ogf->actions[0]); | |
5892 | features->actions[1] = ntohl(ogf->actions[1]); | |
5893 | features->actions[2] = ntohl(ogf->actions[2]); | |
5894 | features->actions[3] = ntohl(ogf->actions[3]); | |
5895 | } | |
5896 | ||
5897 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
5898 | * group ID and stores the latter in '*group_id'. | |
5899 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
5900 | enum ofperr | |
5901 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
5902 | uint32_t *group_id) | |
5903 | { | |
5904 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
5905 | *group_id = ntohl(gsr11->group_id); | |
5906 | return 0; | |
5907 | } | |
5908 | ||
5909 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
5910 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
5911 | * caller to eventually free. | |
7395c052 NZ |
5912 | * |
5913 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
5914 | * Calling this function multiple times for a single 'msg' iterates through the | |
5915 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
5916 | * not modify them between calls. | |
5917 | * | |
5918 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
5919 | * otherwise a positive errno value. */ | |
5920 | int | |
5921 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
5922 | struct ofputil_group_stats *gs) | |
5923 | { | |
5924 | struct ofp11_bucket_counter *obc; | |
5925 | struct ofp11_group_stats *ogs11; | |
5926 | enum ofpraw raw; | |
5927 | enum ofperr error; | |
5928 | size_t base_len; | |
5929 | size_t length; | |
5930 | size_t i; | |
5931 | ||
646b2a9c | 5932 | gs->bucket_stats = NULL; |
7395c052 NZ |
5933 | error = (msg->l2 |
5934 | ? ofpraw_decode(&raw, msg->l2) | |
5935 | : ofpraw_pull(&raw, msg)); | |
5936 | if (error) { | |
5937 | return error; | |
5938 | } | |
5939 | ||
5940 | if (!msg->size) { | |
5941 | return EOF; | |
5942 | } | |
5943 | ||
5944 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
5945 | base_len = sizeof *ogs11; | |
5946 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
5947 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
5948 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
5949 | struct ofp13_group_stats *ogs13; | |
5950 | ||
5951 | base_len = sizeof *ogs13; | |
5952 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
5953 | if (ogs13) { | |
5954 | ogs11 = &ogs13->gs; | |
5955 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
5956 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
5957 | } else { | |
5958 | ogs11 = NULL; | |
5959 | } | |
5960 | } else { | |
5961 | NOT_REACHED(); | |
5962 | } | |
5963 | ||
5964 | if (!ogs11) { | |
5965 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end", | |
5966 | ofpraw_get_name(raw), msg->size); | |
5967 | return OFPERR_OFPBRC_BAD_LEN; | |
5968 | } | |
5969 | length = ntohs(ogs11->length); | |
5970 | if (length < sizeof base_len) { | |
5971 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %zu", | |
5972 | ofpraw_get_name(raw), length); | |
5973 | return OFPERR_OFPBRC_BAD_LEN; | |
5974 | } | |
5975 | ||
5976 | gs->group_id = ntohl(ogs11->group_id); | |
5977 | gs->ref_count = ntohl(ogs11->ref_count); | |
5978 | gs->packet_count = ntohll(ogs11->packet_count); | |
5979 | gs->byte_count = ntohll(ogs11->byte_count); | |
5980 | ||
5981 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
5982 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
5983 | if (!obc) { | |
5984 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end", | |
5985 | ofpraw_get_name(raw), msg->size); | |
5986 | return OFPERR_OFPBRC_BAD_LEN; | |
5987 | } | |
5988 | ||
646b2a9c | 5989 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
5990 | for (i = 0; i < gs->n_buckets; i++) { |
5991 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
5992 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
5993 | } | |
5994 | ||
5995 | return 0; | |
5996 | } | |
5997 | ||
5998 | /* Appends a group stats reply that contains the data in 'gds' to those already | |
5999 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
6000 | * initialized with ofpmp_init(). */ | |
6001 | void | |
6002 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
6003 | struct list *buckets, | |
6004 | struct list *replies) | |
6005 | { | |
6006 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
6007 | struct ofp11_group_desc_stats *ogds; | |
6008 | struct ofputil_bucket *bucket; | |
6009 | size_t start_ogds; | |
e3f8f887 | 6010 | enum ofp_version version = ((struct ofp_header *)reply->data)->version; |
7395c052 NZ |
6011 | |
6012 | start_ogds = reply->size; | |
6013 | ofpbuf_put_zeros(reply, sizeof *ogds); | |
6014 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
6015 | struct ofp11_bucket *ob; | |
6016 | size_t start_ob; | |
6017 | ||
6018 | start_ob = reply->size; | |
6019 | ofpbuf_put_zeros(reply, sizeof *ob); | |
e3f8f887 JR |
6020 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
6021 | reply, version); | |
7395c052 NZ |
6022 | ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob); |
6023 | ob->len = htons(reply->size - start_ob); | |
6024 | ob->weight = htons(bucket->weight); | |
6025 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
6026 | ob->watch_group = htonl(bucket->watch_group); | |
6027 | } | |
6028 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6029 | ogds->length = htons(reply->size - start_ogds); | |
6030 | ogds->type = gds->type; | |
6031 | ogds->group_id = htonl(gds->group_id); | |
6032 | ||
6033 | ofpmp_postappend(replies, start_ogds); | |
6034 | } | |
6035 | ||
6036 | static enum ofperr | |
e3f8f887 JR |
6037 | ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length, |
6038 | enum ofp_version version, struct list *buckets) | |
7395c052 NZ |
6039 | { |
6040 | struct ofp11_bucket *ob; | |
6041 | ||
6042 | list_init(buckets); | |
6043 | while (buckets_length > 0) { | |
6044 | struct ofputil_bucket *bucket; | |
6045 | struct ofpbuf ofpacts; | |
6046 | enum ofperr error; | |
6047 | size_t ob_len; | |
6048 | ||
6049 | ob = (buckets_length >= sizeof *ob | |
6050 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
6051 | : NULL); | |
6052 | if (!ob) { | |
6053 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %zu leftover bytes", | |
6054 | buckets_length); | |
6055 | } | |
6056 | ||
6057 | ob_len = ntohs(ob->len); | |
6058 | if (ob_len < sizeof *ob) { | |
6059 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
6060 | "%zu is not valid", ob_len); | |
6061 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
6062 | } else if (ob_len > buckets_length) { | |
6063 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
6064 | "%zu exceeds remaining buckets data size %zu", | |
6065 | ob_len, buckets_length); | |
6066 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
6067 | } | |
6068 | buckets_length -= ob_len; | |
6069 | ||
6070 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
6071 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
6072 | version, &ofpacts); | |
7395c052 NZ |
6073 | if (error) { |
6074 | ofpbuf_uninit(&ofpacts); | |
6075 | ofputil_bucket_list_destroy(buckets); | |
6076 | return error; | |
6077 | } | |
6078 | ||
6079 | bucket = xzalloc(sizeof *bucket); | |
6080 | bucket->weight = ntohs(ob->weight); | |
6081 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
6082 | if (error) { | |
6083 | ofpbuf_uninit(&ofpacts); | |
6084 | ofputil_bucket_list_destroy(buckets); | |
6085 | return OFPERR_OFPGMFC_BAD_WATCH; | |
6086 | } | |
6087 | bucket->watch_group = ntohl(ob->watch_group); | |
6088 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6089 | bucket->ofpacts_len = ofpacts.size; | |
6090 | list_push_back(buckets, &bucket->list_node); | |
6091 | } | |
6092 | ||
6093 | return 0; | |
6094 | } | |
6095 | ||
6096 | /* Converts a group description reply in 'msg' into an abstract | |
6097 | * ofputil_group_desc in 'gd'. | |
6098 | * | |
6099 | * Multiple group description replies can be packed into a single OpenFlow | |
6100 | * message. Calling this function multiple times for a single 'msg' iterates | |
6101 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6102 | * null and not modify them between calls. | |
6103 | * | |
6104 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6105 | * otherwise a positive errno value. */ | |
6106 | int | |
6107 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
a7a2d006 | 6108 | struct ofpbuf *msg, enum ofp_version version) |
7395c052 NZ |
6109 | { |
6110 | struct ofp11_group_desc_stats *ogds; | |
6111 | size_t length; | |
6112 | ||
6113 | if (!msg->l2) { | |
6114 | ofpraw_pull_assert(msg); | |
6115 | } | |
6116 | ||
6117 | if (!msg->size) { | |
6118 | return EOF; | |
6119 | } | |
6120 | ||
6121 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
6122 | if (!ogds) { | |
6123 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %zu " | |
6124 | "leftover bytes at end", msg->size); | |
6125 | return OFPERR_OFPBRC_BAD_LEN; | |
6126 | } | |
6127 | gd->type = ogds->type; | |
6128 | gd->group_id = ntohl(ogds->group_id); | |
6129 | ||
6130 | length = ntohs(ogds->length); | |
6131 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { | |
6132 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
6133 | "length %zu", length); | |
6134 | return OFPERR_OFPBRC_BAD_LEN; | |
6135 | } | |
6136 | ||
e3f8f887 | 6137 | return ofputil_pull_buckets(msg, length - sizeof *ogds, version, |
a7a2d006 | 6138 | &gd->buckets); |
7395c052 NZ |
6139 | } |
6140 | ||
6141 | /* Converts abstract group mod 'gm' into a message for OpenFlow version | |
6142 | * 'ofp_version' and returns the message. */ | |
6143 | struct ofpbuf * | |
6144 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
6145 | const struct ofputil_group_mod *gm) | |
6146 | { | |
6147 | struct ofpbuf *b; | |
6148 | struct ofp11_group_mod *ogm; | |
6149 | size_t start_ogm; | |
6150 | size_t start_bucket; | |
6151 | struct ofputil_bucket *bucket; | |
6152 | struct ofp11_bucket *ob; | |
6153 | ||
6154 | switch (ofp_version) { | |
6155 | case OFP10_VERSION: { | |
6156 | if (gm->command == OFPGC11_ADD) { | |
6157 | ovs_fatal(0, "add-group needs OpenFlow 1.1 or later " | |
6158 | "(\'-O OpenFlow11\')"); | |
6159 | } else if (gm->command == OFPGC11_MODIFY) { | |
6160 | ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later " | |
6161 | "(\'-O OpenFlow11\')"); | |
6162 | } else { | |
6163 | ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later " | |
6164 | "(\'-O OpenFlow11\')"); | |
6165 | } | |
6166 | } | |
6167 | ||
6168 | case OFP11_VERSION: | |
6169 | case OFP12_VERSION: | |
6170 | case OFP13_VERSION: { | |
6171 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); | |
6172 | start_ogm = b->size; | |
2134b5ec | 6173 | ofpbuf_put_zeros(b, sizeof *ogm); |
7395c052 NZ |
6174 | |
6175 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
6176 | start_bucket = b->size; | |
2134b5ec | 6177 | ofpbuf_put_zeros(b, sizeof *ob); |
7395c052 | 6178 | if (bucket->ofpacts && bucket->ofpacts_len) { |
e3f8f887 JR |
6179 | ofpacts_put_openflow_actions(bucket->ofpacts, |
6180 | bucket->ofpacts_len, b, | |
6181 | ofp_version); | |
7395c052 NZ |
6182 | } |
6183 | ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob); | |
6184 | ob->len = htons(b->size - start_bucket);; | |
6185 | ob->weight = htons(bucket->weight); | |
6186 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
6187 | ob->watch_group = htonl(bucket->watch_group); | |
6188 | } | |
6189 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
6190 | ogm->command = htons(gm->command); | |
6191 | ogm->type = gm->type; | |
7395c052 NZ |
6192 | ogm->group_id = htonl(gm->group_id); |
6193 | ||
6194 | break; | |
6195 | } | |
6196 | ||
6197 | default: | |
6198 | NOT_REACHED(); | |
6199 | } | |
6200 | ||
6201 | return b; | |
6202 | } | |
6203 | ||
6204 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in | |
6205 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
6206 | enum ofperr | |
6207 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
6208 | struct ofputil_group_mod *gm) | |
6209 | { | |
6210 | const struct ofp11_group_mod *ogm; | |
6211 | struct ofpbuf msg; | |
e57681e5 SH |
6212 | struct ofputil_bucket *bucket; |
6213 | enum ofperr err; | |
7395c052 NZ |
6214 | |
6215 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
6216 | ofpraw_pull_assert(&msg); | |
6217 | ||
6218 | ogm = ofpbuf_pull(&msg, sizeof *ogm); | |
6219 | gm->command = ntohs(ogm->command); | |
6220 | gm->type = ogm->type; | |
6221 | gm->group_id = ntohl(ogm->group_id); | |
6222 | ||
e57681e5 SH |
6223 | err = ofputil_pull_buckets(&msg, msg.size, oh->version, &gm->buckets); |
6224 | if (err) { | |
6225 | return err; | |
6226 | } | |
6227 | ||
6228 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
6229 | switch (gm->type) { | |
6230 | case OFPGT11_ALL: | |
6231 | case OFPGT11_INDIRECT: | |
6232 | if (ofputil_bucket_has_liveness(bucket)) { | |
6233 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
6234 | } | |
6235 | break; | |
6236 | case OFPGT11_SELECT: | |
6237 | break; | |
6238 | case OFPGT11_FF: | |
6239 | if (!ofputil_bucket_has_liveness(bucket)) { | |
6240 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6241 | } | |
6242 | break; | |
6243 | default: | |
6244 | NOT_REACHED(); | |
6245 | } | |
6246 | } | |
6247 | ||
6248 | return 0; | |
7395c052 NZ |
6249 | } |
6250 | ||
64626975 SH |
6251 | /* Parse a queue status request message into 'oqsr'. |
6252 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6253 | enum ofperr | |
6254 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
6255 | struct ofputil_queue_stats_request *oqsr) | |
6256 | { | |
6257 | switch ((enum ofp_version)request->version) { | |
2e1ae200 | 6258 | case OFP13_VERSION: |
64626975 SH |
6259 | case OFP12_VERSION: |
6260 | case OFP11_VERSION: { | |
6261 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
6262 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
6263 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
6264 | } | |
6265 | ||
6266 | case OFP10_VERSION: { | |
7f05e7ab JR |
6267 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
6268 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 6269 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
6270 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
6271 | if (oqsr->port_no == OFPP_ALL) { | |
6272 | oqsr->port_no = OFPP_ANY; | |
6273 | } | |
64626975 SH |
6274 | return 0; |
6275 | } | |
6276 | ||
6277 | default: | |
6278 | NOT_REACHED(); | |
6279 | } | |
6280 | } | |
6281 | ||
6282 | /* Encode a queue statsrequest for 'oqsr', the encoded message | |
6283 | * will be fore Open Flow version 'ofp_version'. Returns message | |
6284 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ | |
6285 | struct ofpbuf * | |
6286 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
6287 | const struct ofputil_queue_stats_request *oqsr) | |
6288 | { | |
6289 | struct ofpbuf *request; | |
6290 | ||
6291 | switch (ofp_version) { | |
6292 | case OFP11_VERSION: | |
2e1ae200 JR |
6293 | case OFP12_VERSION: |
6294 | case OFP13_VERSION: { | |
64626975 SH |
6295 | struct ofp11_queue_stats_request *req; |
6296 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
6297 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6298 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
6299 | req->queue_id = htonl(oqsr->queue_id); | |
6300 | break; | |
6301 | } | |
6302 | case OFP10_VERSION: { | |
6303 | struct ofp10_queue_stats_request *req; | |
6304 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
6305 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 6306 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
6307 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
6308 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
6309 | req->queue_id = htonl(oqsr->queue_id); |
6310 | break; | |
6311 | } | |
6312 | default: | |
6313 | NOT_REACHED(); | |
6314 | } | |
6315 | ||
6316 | return request; | |
6317 | } | |
6318 | ||
be0c30df BP |
6319 | static size_t |
6320 | ofputil_get_queue_stats_size(enum ofp_version ofp_version) | |
6321 | { | |
6322 | switch (ofp_version) { | |
6323 | case OFP10_VERSION: | |
6324 | return sizeof(struct ofp10_queue_stats); | |
6325 | case OFP11_VERSION: | |
6326 | case OFP12_VERSION: | |
6327 | return sizeof(struct ofp11_queue_stats); | |
6328 | case OFP13_VERSION: | |
6329 | return sizeof(struct ofp13_queue_stats); | |
6330 | default: | |
6331 | NOT_REACHED(); | |
6332 | } | |
6333 | } | |
6334 | ||
64626975 SH |
6335 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY |
6336 | * message 'oh'. */ | |
6337 | size_t | |
6338 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
6339 | { | |
6340 | struct ofpbuf b; | |
6341 | ||
6342 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6343 | ofpraw_pull_assert(&b); | |
6344 | ||
be0c30df | 6345 | return b.size / ofputil_get_queue_stats_size(oh->version); |
64626975 SH |
6346 | } |
6347 | ||
6348 | static enum ofperr | |
6349 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
6350 | const struct ofp10_queue_stats *qs10) | |
6351 | { | |
4e022ec0 | 6352 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 6353 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
6354 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
6355 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
6356 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
6357 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6358 | |
6359 | return 0; | |
6360 | } | |
6361 | ||
6362 | static enum ofperr | |
6363 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
6364 | const struct ofp11_queue_stats *qs11) | |
6365 | { | |
6366 | enum ofperr error; | |
6367 | ||
6368 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
6369 | if (error) { | |
6370 | return error; | |
6371 | } | |
6372 | ||
6373 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
6374 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
6375 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
6376 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
6377 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
6378 | |
6379 | return 0; | |
6380 | } | |
6381 | ||
2e1ae200 JR |
6382 | static enum ofperr |
6383 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
6384 | const struct ofp13_queue_stats *qs13) | |
6385 | { | |
6dc34a0d | 6386 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 6387 | if (!error) { |
6dc34a0d BP |
6388 | oqs->duration_sec = ntohl(qs13->duration_sec); |
6389 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
6390 | } |
6391 | ||
6392 | return error; | |
6393 | } | |
6394 | ||
64626975 SH |
6395 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
6396 | * ofputil_queue_stats in 'qs'. | |
6397 | * | |
6398 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
6399 | * message. Calling this function multiple times for a single 'msg' iterates | |
6400 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6401 | * null and not modify them between calls. | |
6402 | * | |
6403 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6404 | * otherwise a positive errno value. */ | |
6405 | int | |
6406 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
6407 | { | |
6408 | enum ofperr error; | |
6409 | enum ofpraw raw; | |
6410 | ||
6411 | error = (msg->l2 | |
6412 | ? ofpraw_decode(&raw, msg->l2) | |
6413 | : ofpraw_pull(&raw, msg)); | |
6414 | if (error) { | |
6415 | return error; | |
6416 | } | |
6417 | ||
6418 | if (!msg->size) { | |
6419 | return EOF; | |
2e1ae200 JR |
6420 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
6421 | const struct ofp13_queue_stats *qs13; | |
6422 | ||
6423 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
6424 | if (!qs13) { | |
6425 | goto bad_len; | |
6426 | } | |
6427 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
6428 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
6429 | const struct ofp11_queue_stats *qs11; | |
6430 | ||
6431 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
6432 | if (!qs11) { | |
2e1ae200 | 6433 | goto bad_len; |
64626975 SH |
6434 | } |
6435 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
6436 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
6437 | const struct ofp10_queue_stats *qs10; | |
6438 | ||
6439 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
6440 | if (!qs10) { | |
2e1ae200 | 6441 | goto bad_len; |
64626975 SH |
6442 | } |
6443 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
6444 | } else { | |
6445 | NOT_REACHED(); | |
6446 | } | |
2e1ae200 JR |
6447 | |
6448 | bad_len: | |
6449 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %zu leftover " | |
6450 | "bytes at end", msg->size); | |
6451 | return OFPERR_OFPBRC_BAD_LEN; | |
64626975 SH |
6452 | } |
6453 | ||
6454 | static void | |
6455 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
6456 | struct ofp10_queue_stats *qs10) | |
6457 | { | |
4e022ec0 | 6458 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
6459 | memset(qs10->pad, 0, sizeof qs10->pad); |
6460 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6461 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
6462 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
6463 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
6464 | } |
6465 | ||
6466 | static void | |
6467 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
6468 | struct ofp11_queue_stats *qs11) | |
6469 | { | |
6470 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
6471 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
6472 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
6473 | qs11->tx_packets = htonll(oqs->tx_packets); | |
6474 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
6475 | } |
6476 | ||
2e1ae200 JR |
6477 | static void |
6478 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
6479 | struct ofp13_queue_stats *qs13) | |
6480 | { | |
6481 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
6482 | if (oqs->duration_sec != UINT32_MAX) { |
6483 | qs13->duration_sec = htonl(oqs->duration_sec); | |
6484 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
6485 | } else { | |
b8266395 BP |
6486 | qs13->duration_sec = OVS_BE32_MAX; |
6487 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 6488 | } |
2e1ae200 JR |
6489 | } |
6490 | ||
64626975 SH |
6491 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
6492 | void | |
6493 | ofputil_append_queue_stat(struct list *replies, | |
6494 | const struct ofputil_queue_stats *oqs) | |
6495 | { | |
6496 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6497 | struct ofp_header *oh = msg->data; | |
6498 | ||
6499 | switch ((enum ofp_version)oh->version) { | |
2e1ae200 JR |
6500 | case OFP13_VERSION: { |
6501 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6502 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
6503 | break; | |
6504 | } | |
6505 | ||
64626975 SH |
6506 | case OFP12_VERSION: |
6507 | case OFP11_VERSION: { | |
2e1ae200 | 6508 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
6509 | ofputil_queue_stats_to_ofp11(oqs, reply); |
6510 | break; | |
6511 | } | |
6512 | ||
6513 | case OFP10_VERSION: { | |
2e1ae200 | 6514 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
6515 | ofputil_queue_stats_to_ofp10(oqs, reply); |
6516 | break; | |
6517 | } | |
6518 | ||
6519 | default: | |
6520 | NOT_REACHED(); | |
6521 | } | |
6522 | } |