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fa37b408 | 1 | /* |
6a5490c6 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. |
fa37b408 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
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" |
18ac06d3 | 35 | #include "id-pool.h" |
f25d0cf3 | 36 | #include "ofp-actions.h" |
dc4762ed | 37 | #include "ofp-errors.h" |
982697a4 | 38 | #include "ofp-msgs.h" |
c5562271 | 39 | #include "ofp-prop.h" |
fa37b408 BP |
40 | #include "ofp-util.h" |
41 | #include "ofpbuf.h" | |
bc65c25a | 42 | #include "openflow/netronome-ext.h" |
fa37b408 | 43 | #include "packets.h" |
9bfe9334 | 44 | #include "pktbuf.h" |
fa37b408 | 45 | #include "random.h" |
6159c531 | 46 | #include "tun-metadata.h" |
4ffd1b43 | 47 | #include "unaligned.h" |
e41a9130 | 48 | #include "type-props.h" |
e6211adc | 49 | #include "openvswitch/vlog.h" |
5deff5aa | 50 | #include "bitmap.h" |
fa37b408 | 51 | |
d98e6007 | 52 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
53 | |
54 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
55 | * in the peer and so there's not much point in showing a lot of them. */ | |
56 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
57 | ||
de7d3c07 SJ |
58 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
59 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
60 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
61 | ovs_be32 config, enum ofp_version); | |
62 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
63 | enum ofputil_table_eviction, | |
de7d3c07 | 64 | enum ofputil_table_vacancy, |
82c22d34 | 65 | enum ofp_version); |
3c1bb396 | 66 | |
0596e897 BP |
67 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
68 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
69 | * is wildcarded. | |
70 | * | |
71 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
72 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
73 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
74 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
75 | * wildcarded. */ | |
76 | ovs_be32 | |
77 | ofputil_wcbits_to_netmask(int wcbits) | |
78 | { | |
79 | wcbits &= 0x3f; | |
80 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
81 | } | |
82 | ||
83 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
84 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
85 | * between 0 and 32 inclusive. | |
86 | * | |
87 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
88 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
89 | int |
90 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
91 | { | |
aad29cd1 | 92 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
93 | } |
94 | ||
eec25dc1 | 95 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 96 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
97 | * responsibility to handle the special case where the flow match's dl_vlan is |
98 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 99 | void |
eec25dc1 | 100 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 101 | { |
ffe4c74f | 102 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 103 | |
81a76618 | 104 | /* Initialize most of wc. */ |
f9ba8dad | 105 | flow_wildcards_init_catchall(wc); |
bad68a99 | 106 | |
0bdc4bec | 107 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 108 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 109 | } |
5d9499c4 BP |
110 | |
111 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 112 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 113 | } |
7257b535 | 114 | |
851d3105 | 115 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 116 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 117 | } |
26720e24 BP |
118 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
119 | >> OFPFW10_NW_SRC_SHIFT); | |
120 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
121 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 122 | |
eec25dc1 | 123 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 124 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 125 | } |
eec25dc1 | 126 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 127 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
128 | } |
129 | ||
eec25dc1 | 130 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 131 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 132 | } |
eec25dc1 | 133 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 134 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 135 | } |
e2170cff | 136 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 137 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 138 | } |
d8ae4d67 | 139 | |
eb6f28db | 140 | /* VLAN TCI mask. */ |
eec25dc1 | 141 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 142 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 143 | } |
eec25dc1 | 144 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 145 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
146 | } |
147 | } | |
148 | ||
81a76618 | 149 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 150 | void |
81a76618 BP |
151 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
152 | struct match *match) | |
153 | { | |
154 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
155 | ||
156 | /* Initialize match->wc. */ | |
296e07ac | 157 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
158 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
159 | ||
160 | /* Initialize most of match->flow. */ | |
161 | match->flow.nw_src = ofmatch->nw_src; | |
162 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 163 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
164 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
165 | match->flow.tp_src = ofmatch->tp_src; | |
166 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
167 | match->flow.dl_src = ofmatch->dl_src; |
168 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
169 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
170 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 171 | |
66642cb4 | 172 | /* Translate VLANs. */ |
0c436519 | 173 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 174 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
175 | /* Match only packets without 802.1Q header. |
176 | * | |
eec25dc1 | 177 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 178 | * |
eec25dc1 | 179 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
180 | * because we can't have a specific PCP without an 802.1Q header. |
181 | * However, older versions of OVS treated this as matching packets | |
182 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
183 | match->flow.vlan_tci = htons(0); |
184 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
185 | } else { |
186 | ovs_be16 vid, pcp, tci; | |
bf062576 | 187 | uint16_t hpcp; |
47271d0d | 188 | |
81a76618 | 189 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
190 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
191 | pcp = htons(hpcp); | |
47271d0d | 192 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 193 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
194 | } |
195 | ||
d8ae4d67 | 196 | /* Clean up. */ |
81a76618 | 197 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
198 | } |
199 | ||
81a76618 | 200 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 201 | void |
81a76618 BP |
202 | ofputil_match_to_ofp10_match(const struct match *match, |
203 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 204 | { |
81a76618 | 205 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 206 | uint32_t ofpfw; |
d8ae4d67 | 207 | |
66642cb4 | 208 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 209 | ofpfw = 0; |
4e022ec0 | 210 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
211 | ofpfw |= OFPFW10_IN_PORT; |
212 | } | |
26720e24 | 213 | if (!wc->masks.dl_type) { |
27cafc5f BP |
214 | ofpfw |= OFPFW10_DL_TYPE; |
215 | } | |
26720e24 | 216 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
217 | ofpfw |= OFPFW10_NW_PROTO; |
218 | } | |
26720e24 | 219 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 220 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 221 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 222 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 223 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 224 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 225 | } |
26720e24 | 226 | if (!wc->masks.tp_src) { |
eec25dc1 | 227 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 228 | } |
26720e24 | 229 | if (!wc->masks.tp_dst) { |
eec25dc1 | 230 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 231 | } |
26720e24 | 232 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 233 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 234 | } |
26720e24 | 235 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 236 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 237 | } |
ff9d3826 | 238 | |
66642cb4 | 239 | /* Translate VLANs. */ |
81a76618 BP |
240 | ofmatch->dl_vlan = htons(0); |
241 | ofmatch->dl_vlan_pcp = 0; | |
242 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 243 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
244 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
245 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
246 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 247 | } else { |
81a76618 | 248 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 249 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 250 | } else { |
81a76618 | 251 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
252 | } |
253 | ||
81a76618 | 254 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 255 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 256 | } else { |
81a76618 | 257 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
258 | } |
259 | } | |
260 | ||
261 | /* Compose most of the match structure. */ | |
81a76618 | 262 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 263 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
264 | ofmatch->dl_src = match->flow.dl_src; |
265 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
266 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
267 | ofmatch->nw_src = match->flow.nw_src; | |
268 | ofmatch->nw_dst = match->flow.nw_dst; | |
269 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
270 | ofmatch->nw_proto = match->flow.nw_proto; | |
271 | ofmatch->tp_src = match->flow.tp_src; | |
272 | ofmatch->tp_dst = match->flow.tp_dst; | |
273 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
274 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
275 | } |
276 | ||
aa319503 | 277 | enum ofperr |
81a76618 BP |
278 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
279 | uint16_t *padded_match_len) | |
aa319503 | 280 | { |
6fd6ed71 | 281 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 282 | uint16_t match_len; |
aa319503 | 283 | |
6fd6ed71 | 284 | if (buf->size < sizeof *omh) { |
aa319503 BP |
285 | return OFPERR_OFPBMC_BAD_LEN; |
286 | } | |
287 | ||
36a16881 SH |
288 | match_len = ntohs(omh->length); |
289 | ||
aa319503 | 290 | switch (ntohs(omh->type)) { |
36a16881 SH |
291 | case OFPMT_STANDARD: { |
292 | struct ofp11_match *om; | |
293 | ||
6fd6ed71 | 294 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
295 | return OFPERR_OFPBMC_BAD_LEN; |
296 | } | |
297 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
298 | if (padded_match_len) { |
299 | *padded_match_len = match_len; | |
300 | } | |
81a76618 | 301 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
302 | } |
303 | ||
304 | case OFPMT_OXM: | |
305 | if (padded_match_len) { | |
306 | *padded_match_len = ROUND_UP(match_len, 8); | |
307 | } | |
81a76618 | 308 | return oxm_pull_match(buf, match); |
aa319503 BP |
309 | |
310 | default: | |
311 | return OFPERR_OFPBMC_BAD_TYPE; | |
312 | } | |
313 | } | |
314 | ||
3f0f48cf YT |
315 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
316 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 317 | enum ofperr |
81a76618 BP |
318 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
319 | struct match *match) | |
410698cf | 320 | { |
81a76618 | 321 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 322 | bool ipv4, arp, rarp; |
410698cf | 323 | |
81a76618 | 324 | match_init_catchall(match); |
410698cf BP |
325 | |
326 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 327 | ofp_port_t ofp_port; |
410698cf BP |
328 | enum ofperr error; |
329 | ||
81a76618 | 330 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
331 | if (error) { |
332 | return OFPERR_OFPBMC_BAD_VALUE; | |
333 | } | |
81a76618 | 334 | match_set_in_port(match, ofp_port); |
410698cf BP |
335 | } |
336 | ||
74ff3298 JR |
337 | match_set_dl_src_masked(match, ofmatch->dl_src, |
338 | eth_addr_invert(ofmatch->dl_src_mask)); | |
339 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
340 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
341 | |
342 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 343 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 344 | /* Match only packets without a VLAN tag. */ |
81a76618 | 345 | match->flow.vlan_tci = htons(0); |
b8266395 | 346 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 347 | } else { |
81a76618 | 348 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 349 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
350 | match->flow.vlan_tci = htons(VLAN_CFI); |
351 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
352 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 353 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
354 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
355 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
356 | } else { |
357 | /* Invalid VID. */ | |
358 | return OFPERR_OFPBMC_BAD_VALUE; | |
359 | } | |
360 | ||
361 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
362 | if (ofmatch->dl_vlan_pcp <= 7) { |
363 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
364 | << VLAN_PCP_SHIFT); | |
365 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
366 | } else { |
367 | /* Invalid PCP. */ | |
368 | return OFPERR_OFPBMC_BAD_VALUE; | |
369 | } | |
370 | } | |
371 | } | |
372 | } | |
373 | ||
374 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
375 | match_set_dl_type(match, |
376 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
377 | } |
378 | ||
81a76618 BP |
379 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
380 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 381 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
382 | |
383 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 384 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
385 | /* Invalid TOS. */ |
386 | return OFPERR_OFPBMC_BAD_VALUE; | |
387 | } | |
388 | ||
81a76618 | 389 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
390 | } |
391 | ||
8087f5ff | 392 | if (ipv4 || arp || rarp) { |
410698cf | 393 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 394 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 395 | } |
81a76618 BP |
396 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
397 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
398 | } |
399 | ||
400 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
401 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 402 | switch (match->flow.nw_proto) { |
410698cf BP |
403 | case IPPROTO_ICMP: |
404 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
405 | * | |
406 | * The tp_src and tp_dst fields will be ignored unless the | |
407 | * network protocol specified is as TCP, UDP or SCTP. | |
408 | * | |
409 | * but I'm pretty sure we should support ICMP too, otherwise | |
410 | * that's a regression from OF1.0. */ | |
411 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 412 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 413 | if (icmp_type < 0x100) { |
81a76618 | 414 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
415 | } else { |
416 | return OFPERR_OFPBMC_BAD_FIELD; | |
417 | } | |
418 | } | |
419 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 420 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 421 | if (icmp_code < 0x100) { |
81a76618 | 422 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
423 | } else { |
424 | return OFPERR_OFPBMC_BAD_FIELD; | |
425 | } | |
426 | } | |
427 | break; | |
428 | ||
429 | case IPPROTO_TCP: | |
430 | case IPPROTO_UDP: | |
0d56eaf2 | 431 | case IPPROTO_SCTP: |
410698cf | 432 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 433 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
434 | } |
435 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 436 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
437 | } |
438 | break; | |
439 | ||
410698cf BP |
440 | default: |
441 | /* OF1.1 says explicitly to ignore this. */ | |
442 | break; | |
443 | } | |
444 | } | |
445 | ||
b02475c5 | 446 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 447 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 448 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
449 | } |
450 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 451 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
452 | } |
453 | } | |
454 | ||
81a76618 BP |
455 | match_set_metadata_masked(match, ofmatch->metadata, |
456 | ~ofmatch->metadata_mask); | |
410698cf BP |
457 | |
458 | return 0; | |
459 | } | |
460 | ||
81a76618 | 461 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 462 | void |
81a76618 BP |
463 | ofputil_match_to_ofp11_match(const struct match *match, |
464 | struct ofp11_match *ofmatch) | |
410698cf BP |
465 | { |
466 | uint32_t wc = 0; | |
410698cf | 467 | |
81a76618 BP |
468 | memset(ofmatch, 0, sizeof *ofmatch); |
469 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
470 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 471 | |
4e022ec0 | 472 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
473 | wc |= OFPFW11_IN_PORT; |
474 | } else { | |
4e022ec0 | 475 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
476 | } |
477 | ||
74ff3298 JR |
478 | ofmatch->dl_src = match->flow.dl_src; |
479 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
480 | ofmatch->dl_dst = match->flow.dl_dst; | |
481 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 482 | |
81a76618 | 483 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 484 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
485 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
486 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
487 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
488 | wc |= OFPFW11_DL_VLAN_PCP; |
489 | } else { | |
81a76618 BP |
490 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
491 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 492 | } else { |
81a76618 | 493 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
494 | } |
495 | ||
81a76618 | 496 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
497 | wc |= OFPFW11_DL_VLAN_PCP; |
498 | } else { | |
81a76618 | 499 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
500 | } |
501 | } | |
502 | ||
81a76618 | 503 | if (!match->wc.masks.dl_type) { |
410698cf BP |
504 | wc |= OFPFW11_DL_TYPE; |
505 | } else { | |
81a76618 | 506 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
507 | } |
508 | ||
81a76618 | 509 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
510 | wc |= OFPFW11_NW_TOS; |
511 | } else { | |
81a76618 | 512 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
513 | } |
514 | ||
81a76618 | 515 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
516 | wc |= OFPFW11_NW_PROTO; |
517 | } else { | |
81a76618 | 518 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
519 | } |
520 | ||
81a76618 BP |
521 | ofmatch->nw_src = match->flow.nw_src; |
522 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
523 | ofmatch->nw_dst = match->flow.nw_dst; | |
524 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 525 | |
81a76618 | 526 | if (!match->wc.masks.tp_src) { |
410698cf BP |
527 | wc |= OFPFW11_TP_SRC; |
528 | } else { | |
81a76618 | 529 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
530 | } |
531 | ||
81a76618 | 532 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
533 | wc |= OFPFW11_TP_DST; |
534 | } else { | |
81a76618 | 535 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
536 | } |
537 | ||
8bfd0fda | 538 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
539 | wc |= OFPFW11_MPLS_LABEL; |
540 | } else { | |
8bfd0fda BP |
541 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
542 | match->flow.mpls_lse[0])); | |
097d4939 JR |
543 | } |
544 | ||
8bfd0fda | 545 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
546 | wc |= OFPFW11_MPLS_TC; |
547 | } else { | |
8bfd0fda | 548 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 549 | } |
410698cf | 550 | |
81a76618 BP |
551 | ofmatch->metadata = match->flow.metadata; |
552 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 553 | |
81a76618 | 554 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
555 | } |
556 | ||
75fa58f8 BP |
557 | /* Returns the "typical" length of a match for 'protocol', for use in |
558 | * estimating space to preallocate. */ | |
559 | int | |
560 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
561 | { | |
562 | switch (protocol) { | |
563 | case OFPUTIL_P_OF10_STD: | |
564 | case OFPUTIL_P_OF10_STD_TID: | |
565 | return sizeof(struct ofp10_match); | |
566 | ||
567 | case OFPUTIL_P_OF10_NXM: | |
568 | case OFPUTIL_P_OF10_NXM_TID: | |
569 | return NXM_TYPICAL_LEN; | |
570 | ||
571 | case OFPUTIL_P_OF11_STD: | |
572 | return sizeof(struct ofp11_match); | |
573 | ||
574 | case OFPUTIL_P_OF12_OXM: | |
575 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 576 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 577 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
578 | return NXM_TYPICAL_LEN; |
579 | ||
580 | default: | |
428b2edd | 581 | OVS_NOT_REACHED(); |
75fa58f8 BP |
582 | } |
583 | } | |
584 | ||
585 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
586 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
587 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
588 | * in OpenFlow 1.1 or later. | |
589 | * | |
590 | * This function can cause 'b''s data to be reallocated. | |
591 | * | |
592 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
593 | * returns zero. */ | |
594 | int | |
595 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
596 | enum ofputil_protocol protocol) | |
597 | { | |
598 | switch (protocol) { | |
599 | case OFPUTIL_P_OF10_STD: | |
600 | case OFPUTIL_P_OF10_STD_TID: | |
601 | case OFPUTIL_P_OF10_NXM: | |
602 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 603 | OVS_NOT_REACHED(); |
75fa58f8 BP |
604 | |
605 | case OFPUTIL_P_OF11_STD: { | |
606 | struct ofp11_match *om; | |
607 | ||
608 | /* Make sure that no padding is needed. */ | |
609 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
610 | ||
611 | om = ofpbuf_put_uninit(b, sizeof *om); | |
612 | ofputil_match_to_ofp11_match(match, om); | |
613 | return sizeof *om; | |
614 | } | |
615 | ||
616 | case OFPUTIL_P_OF12_OXM: | |
617 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 618 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 619 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
620 | return oxm_put_match(b, match, |
621 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
622 | } |
623 | ||
428b2edd | 624 | OVS_NOT_REACHED(); |
75fa58f8 BP |
625 | } |
626 | ||
36956a7d | 627 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
628 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
629 | * structure. */ | |
36956a7d BP |
630 | ovs_be16 |
631 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
632 | { | |
633 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
634 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
635 | : flow_dl_type); | |
636 | } | |
637 | ||
eec25dc1 | 638 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
639 | * structure, returns the corresponding 'dl_type' value for use in struct |
640 | * flow. */ | |
641 | ovs_be16 | |
642 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
643 | { | |
644 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
645 | ? htons(FLOW_DL_TYPE_NONE) | |
646 | : ofp_dl_type); | |
647 | } | |
2e4f5fcf | 648 | \f |
27527aa0 | 649 | /* Protocols. */ |
7fa91113 | 650 | |
27527aa0 BP |
651 | struct proto_abbrev { |
652 | enum ofputil_protocol protocol; | |
653 | const char *name; | |
654 | }; | |
655 | ||
656 | /* Most users really don't care about some of the differences between | |
aa233d57 | 657 | * protocols. These abbreviations help with that. */ |
27527aa0 | 658 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
659 | { OFPUTIL_P_ANY, "any" }, |
660 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
661 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
662 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
663 | }; |
664 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
665 | ||
666 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 667 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 668 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 669 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 670 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 671 | OFPUTIL_P_OF11_STD, |
85813857 BP |
672 | OFPUTIL_P_OF10_NXM, |
673 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
674 | }; |
675 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
676 | ||
4f13da56 BP |
677 | /* Returns the set of ofputil_protocols that are supported with the given |
678 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
679 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
680 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 681 | enum ofputil_protocol |
4f13da56 | 682 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
683 | { |
684 | switch (version) { | |
2e3fa633 | 685 | case OFP10_VERSION: |
4f13da56 | 686 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
687 | case OFP11_VERSION: |
688 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 689 | case OFP12_VERSION: |
85813857 | 690 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
691 | case OFP13_VERSION: |
692 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
693 | case OFP14_VERSION: |
694 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
695 | case OFP15_VERSION: |
696 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
697 | default: |
698 | return 0; | |
27527aa0 BP |
699 | } |
700 | } | |
701 | ||
4f13da56 BP |
702 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
703 | * connection that has negotiated the given 'version'. 'version' should | |
704 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
705 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
706 | * outside the valid range. */ | |
707 | enum ofputil_protocol | |
708 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
709 | { | |
710 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
711 | } | |
712 | ||
44d3732d | 713 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 714 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 715 | enum ofp_version |
9e1fd49b BP |
716 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
717 | { | |
718 | switch (protocol) { | |
85813857 BP |
719 | case OFPUTIL_P_OF10_STD: |
720 | case OFPUTIL_P_OF10_STD_TID: | |
721 | case OFPUTIL_P_OF10_NXM: | |
722 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 723 | return OFP10_VERSION; |
75fa58f8 BP |
724 | case OFPUTIL_P_OF11_STD: |
725 | return OFP11_VERSION; | |
85813857 | 726 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 727 | return OFP12_VERSION; |
2e1ae200 JR |
728 | case OFPUTIL_P_OF13_OXM: |
729 | return OFP13_VERSION; | |
c37c0382 AC |
730 | case OFPUTIL_P_OF14_OXM: |
731 | return OFP14_VERSION; | |
42dccab5 BP |
732 | case OFPUTIL_P_OF15_OXM: |
733 | return OFP15_VERSION; | |
9e1fd49b BP |
734 | } |
735 | ||
428b2edd | 736 | OVS_NOT_REACHED(); |
9e1fd49b BP |
737 | } |
738 | ||
4f13da56 BP |
739 | /* Returns a bitmap of OpenFlow versions that are supported by at |
740 | * least one of the 'protocols'. */ | |
741 | uint32_t | |
742 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
743 | { | |
744 | uint32_t bitmap = 0; | |
745 | ||
746 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
747 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
748 | ||
749 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
750 | } | |
751 | ||
752 | return bitmap; | |
753 | } | |
754 | ||
755 | /* Returns the set of protocols that are supported on top of the | |
756 | * OpenFlow versions included in 'bitmap'. */ | |
757 | enum ofputil_protocol | |
758 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
759 | { | |
760 | enum ofputil_protocol protocols = 0; | |
761 | ||
762 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
763 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
764 | ||
765 | protocols |= ofputil_protocols_from_ofp_version(version); | |
766 | } | |
767 | ||
768 | return protocols; | |
769 | } | |
770 | ||
27527aa0 BP |
771 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
772 | * otherwise. */ | |
7fa91113 | 773 | bool |
27527aa0 | 774 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 775 | { |
27527aa0 BP |
776 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
777 | } | |
778 | ||
779 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
780 | * extension turned on or off if 'enable' is true or false, respectively. | |
781 | * | |
782 | * This extension is only useful for protocols whose "standard" version does | |
783 | * not allow specific tables to be modified. In particular, this is true of | |
784 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
785 | * specifies a table ID and so there is no need for such an extension. When | |
786 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
787 | * extension, this function just returns its 'protocol' argument unchanged | |
788 | * regardless of the value of 'enable'. */ | |
789 | enum ofputil_protocol | |
790 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
791 | { | |
792 | switch (protocol) { | |
85813857 BP |
793 | case OFPUTIL_P_OF10_STD: |
794 | case OFPUTIL_P_OF10_STD_TID: | |
795 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 796 | |
85813857 BP |
797 | case OFPUTIL_P_OF10_NXM: |
798 | case OFPUTIL_P_OF10_NXM_TID: | |
799 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 800 | |
75fa58f8 BP |
801 | case OFPUTIL_P_OF11_STD: |
802 | return OFPUTIL_P_OF11_STD; | |
803 | ||
85813857 BP |
804 | case OFPUTIL_P_OF12_OXM: |
805 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 806 | |
2e1ae200 JR |
807 | case OFPUTIL_P_OF13_OXM: |
808 | return OFPUTIL_P_OF13_OXM; | |
809 | ||
c37c0382 AC |
810 | case OFPUTIL_P_OF14_OXM: |
811 | return OFPUTIL_P_OF14_OXM; | |
812 | ||
42dccab5 BP |
813 | case OFPUTIL_P_OF15_OXM: |
814 | return OFPUTIL_P_OF15_OXM; | |
815 | ||
27527aa0 | 816 | default: |
428b2edd | 817 | OVS_NOT_REACHED(); |
7fa91113 | 818 | } |
27527aa0 | 819 | } |
7fa91113 | 820 | |
27527aa0 BP |
821 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
822 | * some extension to a standard protocol version, the return value is the | |
823 | * standard version of that protocol without any extension. If 'protocol' is a | |
824 | * standard protocol version, returns 'protocol' unchanged. */ | |
825 | enum ofputil_protocol | |
826 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
827 | { | |
828 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
829 | } |
830 | ||
27527aa0 BP |
831 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
832 | enum ofputil_protocol | |
833 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
834 | enum ofputil_protocol new_base) | |
7fa91113 | 835 | { |
27527aa0 BP |
836 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
837 | ||
838 | switch (new_base) { | |
85813857 BP |
839 | case OFPUTIL_P_OF10_STD: |
840 | case OFPUTIL_P_OF10_STD_TID: | |
841 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 842 | |
85813857 BP |
843 | case OFPUTIL_P_OF10_NXM: |
844 | case OFPUTIL_P_OF10_NXM_TID: | |
845 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 846 | |
75fa58f8 BP |
847 | case OFPUTIL_P_OF11_STD: |
848 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
849 | ||
85813857 BP |
850 | case OFPUTIL_P_OF12_OXM: |
851 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 852 | |
2e1ae200 JR |
853 | case OFPUTIL_P_OF13_OXM: |
854 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
855 | ||
c37c0382 AC |
856 | case OFPUTIL_P_OF14_OXM: |
857 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
858 | ||
42dccab5 BP |
859 | case OFPUTIL_P_OF15_OXM: |
860 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
861 | ||
7fa91113 | 862 | default: |
428b2edd | 863 | OVS_NOT_REACHED(); |
7fa91113 BP |
864 | } |
865 | } | |
866 | ||
27527aa0 BP |
867 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
868 | * 'protocol' is either a single protocol or it is a combination of protocols | |
869 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
870 | const char * | |
871 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 872 | { |
27527aa0 BP |
873 | const struct proto_abbrev *p; |
874 | ||
875 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
876 | * warning if we forget any. */ | |
877 | switch (protocol) { | |
85813857 | 878 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
879 | return "NXM-table_id"; |
880 | ||
85813857 | 881 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
882 | return "NXM+table_id"; |
883 | ||
85813857 | 884 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
885 | return "OpenFlow10-table_id"; |
886 | ||
85813857 | 887 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 888 | return "OpenFlow10+table_id"; |
44d3732d | 889 | |
75fa58f8 BP |
890 | case OFPUTIL_P_OF11_STD: |
891 | return "OpenFlow11"; | |
892 | ||
85813857 | 893 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 894 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
895 | |
896 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 897 | return "OXM-OpenFlow13"; |
c37c0382 AC |
898 | |
899 | case OFPUTIL_P_OF14_OXM: | |
900 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
901 | |
902 | case OFPUTIL_P_OF15_OXM: | |
903 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
904 | } |
905 | ||
906 | /* Check abbreviations. */ | |
907 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
908 | if (protocol == p->protocol) { | |
909 | return p->name; | |
910 | } | |
911 | } | |
912 | ||
913 | return NULL; | |
914 | } | |
915 | ||
916 | /* Returns a string that represents 'protocols'. The return value might be a | |
917 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
918 | * value is "none" if 'protocols' is 0. | |
919 | * | |
920 | * The caller must free the returned string (with free()). */ | |
921 | char * | |
922 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
923 | { | |
924 | struct ds s; | |
925 | ||
cb22974d | 926 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
927 | if (protocols == 0) { |
928 | return xstrdup("none"); | |
929 | } | |
930 | ||
931 | ds_init(&s); | |
932 | while (protocols) { | |
933 | const struct proto_abbrev *p; | |
934 | int i; | |
935 | ||
936 | if (s.length) { | |
937 | ds_put_char(&s, ','); | |
938 | } | |
939 | ||
940 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
941 | if ((protocols & p->protocol) == p->protocol) { | |
942 | ds_put_cstr(&s, p->name); | |
943 | protocols &= ~p->protocol; | |
944 | goto match; | |
945 | } | |
946 | } | |
947 | ||
948 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
949 | enum ofputil_protocol bit = 1u << i; | |
950 | ||
951 | if (protocols & bit) { | |
952 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
953 | protocols &= ~bit; | |
954 | goto match; | |
955 | } | |
956 | } | |
428b2edd | 957 | OVS_NOT_REACHED(); |
27527aa0 BP |
958 | |
959 | match: ; | |
960 | } | |
961 | return ds_steal_cstr(&s); | |
962 | } | |
963 | ||
964 | static enum ofputil_protocol | |
965 | ofputil_protocol_from_string__(const char *s, size_t n) | |
966 | { | |
967 | const struct proto_abbrev *p; | |
968 | int i; | |
969 | ||
970 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
971 | enum ofputil_protocol bit = 1u << i; | |
972 | const char *name = ofputil_protocol_to_string(bit); | |
973 | ||
974 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
975 | return bit; | |
976 | } | |
977 | } | |
978 | ||
979 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
980 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
981 | return p->protocol; | |
982 | } | |
983 | } | |
984 | ||
985 | return 0; | |
986 | } | |
987 | ||
988 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
989 | * single protocol name or abbreviation or a comma-separated list of them. | |
990 | * | |
991 | * Aborts the program with an error message if 's' is invalid. */ | |
992 | enum ofputil_protocol | |
993 | ofputil_protocols_from_string(const char *s) | |
994 | { | |
995 | const char *orig_s = s; | |
996 | enum ofputil_protocol protocols; | |
997 | ||
998 | protocols = 0; | |
999 | while (*s) { | |
1000 | enum ofputil_protocol p; | |
1001 | size_t n; | |
1002 | ||
1003 | n = strcspn(s, ","); | |
1004 | if (n == 0) { | |
1005 | s++; | |
1006 | continue; | |
1007 | } | |
1008 | ||
1009 | p = ofputil_protocol_from_string__(s, n); | |
1010 | if (!p) { | |
1011 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1012 | } | |
1013 | protocols |= p; | |
1014 | ||
1015 | s += n; | |
1016 | } | |
1017 | ||
1018 | if (!protocols) { | |
1019 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1020 | } | |
1021 | return protocols; | |
88ca35ee BP |
1022 | } |
1023 | ||
9d84066c | 1024 | enum ofp_version |
03e1125c SH |
1025 | ofputil_version_from_string(const char *s) |
1026 | { | |
1027 | if (!strcasecmp(s, "OpenFlow10")) { | |
1028 | return OFP10_VERSION; | |
1029 | } | |
1030 | if (!strcasecmp(s, "OpenFlow11")) { | |
1031 | return OFP11_VERSION; | |
1032 | } | |
1033 | if (!strcasecmp(s, "OpenFlow12")) { | |
1034 | return OFP12_VERSION; | |
1035 | } | |
2e1ae200 JR |
1036 | if (!strcasecmp(s, "OpenFlow13")) { |
1037 | return OFP13_VERSION; | |
1038 | } | |
c37c0382 AC |
1039 | if (!strcasecmp(s, "OpenFlow14")) { |
1040 | return OFP14_VERSION; | |
1041 | } | |
42dccab5 BP |
1042 | if (!strcasecmp(s, "OpenFlow15")) { |
1043 | return OFP15_VERSION; | |
1044 | } | |
7beaa082 | 1045 | return 0; |
03e1125c SH |
1046 | } |
1047 | ||
1048 | static bool | |
e091ef84 | 1049 | is_delimiter(unsigned char c) |
03e1125c SH |
1050 | { |
1051 | return isspace(c) || c == ','; | |
1052 | } | |
1053 | ||
1054 | uint32_t | |
1055 | ofputil_versions_from_string(const char *s) | |
1056 | { | |
1057 | size_t i = 0; | |
1058 | uint32_t bitmap = 0; | |
1059 | ||
1060 | while (s[i]) { | |
1061 | size_t j; | |
7beaa082 | 1062 | int version; |
03e1125c SH |
1063 | char *key; |
1064 | ||
1065 | if (is_delimiter(s[i])) { | |
1066 | i++; | |
1067 | continue; | |
1068 | } | |
1069 | j = 0; | |
1070 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1071 | j++; | |
1072 | } | |
1073 | key = xmemdup0(s + i, j); | |
1074 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1075 | if (!version) { |
1076 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1077 | } | |
03e1125c SH |
1078 | free(key); |
1079 | bitmap |= 1u << version; | |
1080 | i += j; | |
1081 | } | |
1082 | ||
1083 | return bitmap; | |
1084 | } | |
1085 | ||
7beaa082 SH |
1086 | uint32_t |
1087 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1088 | { | |
1089 | uint32_t bitmap = 0; | |
1090 | ||
1091 | while (count--) { | |
1092 | int version = ofputil_version_from_string(s[count]); | |
1093 | if (!version) { | |
1094 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1095 | } else { | |
1096 | bitmap |= 1u << version; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | return bitmap; | |
1101 | } | |
1102 | ||
03e1125c SH |
1103 | const char * |
1104 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1105 | { | |
1106 | switch (ofp_version) { | |
1107 | case OFP10_VERSION: | |
1108 | return "OpenFlow10"; | |
1109 | case OFP11_VERSION: | |
1110 | return "OpenFlow11"; | |
1111 | case OFP12_VERSION: | |
1112 | return "OpenFlow12"; | |
2e1ae200 JR |
1113 | case OFP13_VERSION: |
1114 | return "OpenFlow13"; | |
c37c0382 AC |
1115 | case OFP14_VERSION: |
1116 | return "OpenFlow14"; | |
42dccab5 BP |
1117 | case OFP15_VERSION: |
1118 | return "OpenFlow15"; | |
03e1125c | 1119 | default: |
428b2edd | 1120 | OVS_NOT_REACHED(); |
03e1125c SH |
1121 | } |
1122 | } | |
1123 | ||
54834960 EJ |
1124 | bool |
1125 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1126 | { | |
1127 | switch (packet_in_format) { | |
1128 | case NXPIF_OPENFLOW10: | |
1129 | case NXPIF_NXM: | |
1130 | return true; | |
1131 | } | |
1132 | ||
1133 | return false; | |
1134 | } | |
1135 | ||
1136 | const char * | |
1137 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1138 | { | |
1139 | switch (packet_in_format) { | |
1140 | case NXPIF_OPENFLOW10: | |
1141 | return "openflow10"; | |
1142 | case NXPIF_NXM: | |
1143 | return "nxm"; | |
1144 | default: | |
428b2edd | 1145 | OVS_NOT_REACHED(); |
54834960 EJ |
1146 | } |
1147 | } | |
1148 | ||
1149 | int | |
1150 | ofputil_packet_in_format_from_string(const char *s) | |
1151 | { | |
1152 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1153 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1154 | : -1); | |
1155 | } | |
1156 | ||
03e1125c SH |
1157 | void |
1158 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1159 | { | |
8989046d | 1160 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1161 | } |
1162 | ||
1163 | void | |
1164 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1165 | { | |
1166 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1167 | } | |
1168 | ||
1169 | static void | |
1170 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1171 | void (*format_version)(struct ds *msg, | |
1172 | enum ofp_version)) | |
1173 | { | |
1174 | while (bitmap) { | |
1175 | format_version(msg, raw_ctz(bitmap)); | |
1176 | bitmap = zero_rightmost_1bit(bitmap); | |
1177 | if (bitmap) { | |
1178 | ds_put_cstr(msg, ", "); | |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | void | |
1184 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1185 | { | |
1186 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1187 | } | |
1188 | ||
1189 | void | |
1190 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1191 | { | |
1192 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1193 | } | |
1194 | ||
de6c85b0 SH |
1195 | static bool |
1196 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1197 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1198 | { |
1199 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1200 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1201 | uint32_t allowed_versions; |
de6c85b0 SH |
1202 | |
1203 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1204 | return false; | |
1205 | } | |
1206 | ||
1207 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1208 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1209 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1210 | * wire-protocol versions greater than 31. |
1211 | */ | |
0935de41 | 1212 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1213 | |
0935de41 | 1214 | if (allowed_versions & 1) { |
de6c85b0 SH |
1215 | /* There's no OpenFlow version 0. */ |
1216 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1217 | "version 0x00"); | |
0935de41 | 1218 | allowed_versions &= ~1u; |
de6c85b0 SH |
1219 | } |
1220 | ||
0935de41 | 1221 | if (!allowed_versions) { |
de6c85b0 SH |
1222 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1223 | "version (between 0x01 and 0x1f)"); | |
1224 | return false; | |
1225 | } | |
1226 | ||
0935de41 | 1227 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1228 | return true; |
1229 | } | |
1230 | ||
1231 | static uint32_t | |
1232 | version_bitmap_from_version(uint8_t ofp_version) | |
1233 | { | |
1234 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1235 | } | |
1236 | ||
1237 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1238 | * the set of OpenFlow versions for which 'oh' announces support. | |
1239 | * | |
1240 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1241 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1242 | * returns false if 'oh' contains some data that could not be fully understood, | |
1243 | * true if 'oh' was completely parsed. */ | |
1244 | bool | |
1245 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1246 | { | |
1247 | struct ofpbuf msg; | |
1248 | bool ok = true; | |
1249 | ||
1250 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1251 | ofpbuf_pull(&msg, sizeof *oh); | |
1252 | ||
1253 | *allowed_versions = version_bitmap_from_version(oh->version); | |
6fd6ed71 | 1254 | while (msg.size) { |
de6c85b0 SH |
1255 | const struct ofp_hello_elem_header *oheh; |
1256 | unsigned int len; | |
1257 | ||
6fd6ed71 | 1258 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1259 | return false; |
1260 | } | |
1261 | ||
6fd6ed71 | 1262 | oheh = msg.data; |
de6c85b0 SH |
1263 | len = ntohs(oheh->length); |
1264 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1265 | return false; | |
1266 | } | |
1267 | ||
1268 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1269 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1270 | ok = false; | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | return ok; | |
1275 | } | |
1276 | ||
1277 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1278 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1279 | static bool |
de6c85b0 SH |
1280 | should_send_version_bitmap(uint32_t allowed_versions) |
1281 | { | |
1282 | return !is_pow2((allowed_versions >> 1) + 1); | |
1283 | } | |
1284 | ||
1285 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1286 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1287 | struct ofpbuf * | |
1288 | ofputil_encode_hello(uint32_t allowed_versions) | |
1289 | { | |
1290 | enum ofp_version ofp_version; | |
1291 | struct ofpbuf *msg; | |
1292 | ||
1293 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1294 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1295 | ||
1296 | if (should_send_version_bitmap(allowed_versions)) { | |
1297 | struct ofp_hello_elem_header *oheh; | |
1298 | uint16_t map_len; | |
1299 | ||
74c4b9c1 | 1300 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1301 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1302 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1303 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1304 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1305 | |
1306 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1307 | } |
1308 | ||
1309 | return msg; | |
1310 | } | |
1311 | ||
27527aa0 BP |
1312 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1313 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1314 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1315 | * connection if the switch processes the returned message correctly. (If | |
1316 | * '*next != want' then the caller will have to iterate.) | |
1317 | * | |
e43928f2 BP |
1318 | * If 'current == want', or if it is not possible to transition from 'current' |
1319 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1320 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1321 | struct ofpbuf * |
1322 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1323 | enum ofputil_protocol want, | |
1324 | enum ofputil_protocol *next) | |
1325 | { | |
e43928f2 | 1326 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1327 | enum ofputil_protocol cur_base, want_base; |
1328 | bool cur_tid, want_tid; | |
1329 | ||
e43928f2 BP |
1330 | cur_version = ofputil_protocol_to_ofp_version(current); |
1331 | want_version = ofputil_protocol_to_ofp_version(want); | |
1332 | if (cur_version != want_version) { | |
1333 | *next = current; | |
1334 | return NULL; | |
1335 | } | |
1336 | ||
27527aa0 BP |
1337 | cur_base = ofputil_protocol_to_base(current); |
1338 | want_base = ofputil_protocol_to_base(want); | |
1339 | if (cur_base != want_base) { | |
1340 | *next = ofputil_protocol_set_base(current, want_base); | |
1341 | ||
1342 | switch (want_base) { | |
85813857 | 1343 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1344 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1345 | ||
85813857 | 1346 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1347 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1348 | ||
75fa58f8 | 1349 | case OFPUTIL_P_OF11_STD: |
85813857 | 1350 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1351 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1352 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1353 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1354 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1355 | * verified above that we're not trying to change versions. */ |
428b2edd | 1356 | OVS_NOT_REACHED(); |
44d3732d | 1357 | |
85813857 BP |
1358 | case OFPUTIL_P_OF10_STD_TID: |
1359 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1360 | OVS_NOT_REACHED(); |
27527aa0 BP |
1361 | } |
1362 | } | |
1363 | ||
1364 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1365 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1366 | if (cur_tid != want_tid) { | |
1367 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1368 | return ofputil_make_flow_mod_table_id(want_tid); | |
1369 | } | |
1370 | ||
cb22974d | 1371 | ovs_assert(current == want); |
27527aa0 BP |
1372 | |
1373 | *next = current; | |
1374 | return NULL; | |
88ca35ee BP |
1375 | } |
1376 | ||
27527aa0 BP |
1377 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1378 | * format to 'nxff'. */ | |
88ca35ee | 1379 | struct ofpbuf * |
27527aa0 | 1380 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1381 | { |
73dbf4ab | 1382 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1383 | struct ofpbuf *msg; |
1384 | ||
cb22974d | 1385 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1386 | |
982697a4 BP |
1387 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1388 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1389 | sff->format = htonl(nxff); |
88ca35ee BP |
1390 | |
1391 | return msg; | |
1392 | } | |
1393 | ||
27527aa0 BP |
1394 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1395 | * otherwise. */ | |
1396 | enum ofputil_protocol | |
1397 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1398 | { | |
1399 | switch (flow_format) { | |
1400 | case NXFF_OPENFLOW10: | |
85813857 | 1401 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1402 | |
1403 | case NXFF_NXM: | |
85813857 | 1404 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1405 | |
1406 | default: | |
1407 | return 0; | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1412 | bool | |
1413 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1414 | { | |
1415 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1416 | } | |
1417 | ||
1418 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1419 | * value. */ | |
1420 | const char * | |
1421 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1422 | { | |
1423 | switch (flow_format) { | |
1424 | case NXFF_OPENFLOW10: | |
1425 | return "openflow10"; | |
1426 | case NXFF_NXM: | |
1427 | return "nxm"; | |
1428 | default: | |
428b2edd | 1429 | OVS_NOT_REACHED(); |
27527aa0 BP |
1430 | } |
1431 | } | |
1432 | ||
54834960 | 1433 | struct ofpbuf * |
3f4a1939 SH |
1434 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1435 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1436 | { |
73dbf4ab | 1437 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1438 | struct ofpbuf *msg; |
1439 | ||
3f4a1939 | 1440 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1441 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1442 | spif->format = htonl(packet_in_format); |
1443 | ||
1444 | return msg; | |
1445 | } | |
1446 | ||
6c1491fb BP |
1447 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1448 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1449 | struct ofpbuf * | |
1450 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1451 | { | |
73dbf4ab | 1452 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1453 | struct ofpbuf *msg; |
1454 | ||
982697a4 BP |
1455 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1456 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1457 | nfmti->set = flow_mod_table_id; |
1458 | return msg; | |
1459 | } | |
1460 | ||
0fb88c18 BP |
1461 | struct ofputil_flow_mod_flag { |
1462 | uint16_t raw_flag; | |
1463 | enum ofp_version min_version, max_version; | |
1464 | enum ofputil_flow_mod_flags flag; | |
1465 | }; | |
1466 | ||
1467 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1468 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1469 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1470 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1471 | OFPUTIL_FF_EMERG }, | |
1472 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1473 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1474 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1475 | { 0, 0, 0, 0 }, | |
1476 | }; | |
1477 | ||
1478 | static enum ofperr | |
1479 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1480 | enum ofp_flow_mod_command command, | |
1481 | enum ofp_version version, | |
1482 | enum ofputil_flow_mod_flags *flagsp) | |
1483 | { | |
1484 | uint16_t raw_flags = ntohs(raw_flags_); | |
1485 | const struct ofputil_flow_mod_flag *f; | |
1486 | ||
1487 | *flagsp = 0; | |
1488 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1489 | if (raw_flags & f->raw_flag | |
1490 | && version >= f->min_version | |
1491 | && (!f->max_version || version <= f->max_version)) { | |
1492 | raw_flags &= ~f->raw_flag; | |
1493 | *flagsp |= f->flag; | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1498 | * never do. | |
1499 | * | |
1500 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1501 | * resets counters. */ | |
1502 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1503 | && command == OFPFC_ADD) { | |
1504 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1505 | } | |
1506 | ||
1507 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1508 | } | |
1509 | ||
1510 | static ovs_be16 | |
1511 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1512 | enum ofp_version version) | |
1513 | { | |
1514 | const struct ofputil_flow_mod_flag *f; | |
1515 | uint16_t raw_flags; | |
1516 | ||
1517 | raw_flags = 0; | |
1518 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1519 | if (f->flag & flags | |
1520 | && version >= f->min_version | |
1521 | && (!f->max_version || version <= f->max_version)) { | |
1522 | raw_flags |= f->raw_flag; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | return htons(raw_flags); | |
1527 | } | |
1528 | ||
7fa91113 BP |
1529 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1530 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1531 | * code. | |
1532 | * | |
f25d0cf3 BP |
1533 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1534 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1535 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1536 | * | |
1537 | * Does not validate the flow_mod actions. The caller should do that, with | |
1538 | * ofpacts_check(). */ | |
90bf1e07 | 1539 | enum ofperr |
a9a2da38 | 1540 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1541 | const struct ofp_header *oh, |
f25d0cf3 | 1542 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1543 | struct ofpbuf *ofpacts, |
1544 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1545 | { |
0fb88c18 BP |
1546 | ovs_be16 raw_flags; |
1547 | enum ofperr error; | |
2e4f5fcf | 1548 | struct ofpbuf b; |
982697a4 | 1549 | enum ofpraw raw; |
2e4f5fcf | 1550 | |
cc40d06b SH |
1551 | /* Ignored for non-delete actions */ |
1552 | fm->delete_reason = OFPRR_DELETE; | |
1553 | ||
2013493b | 1554 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1555 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1556 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1557 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1558 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1559 | |
bbc32a88 | 1560 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1561 | |
81a76618 | 1562 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1563 | if (error) { |
1564 | return error; | |
1c0b7503 BP |
1565 | } |
1566 | ||
2e4f5fcf | 1567 | /* Translate the message. */ |
81a76618 | 1568 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1569 | if (ofm->command == OFPFC_ADD |
1570 | || (oh->version == OFP11_VERSION | |
1571 | && (ofm->command == OFPFC_MODIFY || | |
1572 | ofm->command == OFPFC_MODIFY_STRICT) | |
1573 | && ofm->cookie_mask == htonll(0))) { | |
1574 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1575 | * not match on the cookie is treated as an "add" if there is no | |
1576 | * match. */ | |
aa319503 BP |
1577 | fm->cookie = htonll(0); |
1578 | fm->cookie_mask = htonll(0); | |
1579 | fm->new_cookie = ofm->cookie; | |
1580 | } else { | |
aa319503 BP |
1581 | fm->cookie = ofm->cookie; |
1582 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1583 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1584 | } |
23342857 | 1585 | fm->modify_cookie = false; |
aa319503 | 1586 | fm->command = ofm->command; |
0e197060 BP |
1587 | |
1588 | /* Get table ID. | |
1589 | * | |
083761ad SH |
1590 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1591 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1592 | fm->table_id = ofm->table_id; |
083761ad | 1593 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1594 | && (oh->version == OFP11_VERSION |
1595 | || (ofm->command != OFPFC_DELETE && | |
1596 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1597 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1598 | } | |
1599 | ||
2e4f5fcf BP |
1600 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1601 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1602 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1603 | fm->importance = ntohs(ofm->importance); | |
1604 | } else { | |
1605 | fm->importance = 0; | |
1606 | } | |
2e4f5fcf | 1607 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1608 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1609 | if (error) { |
1610 | return error; | |
1611 | } | |
7395c052 | 1612 | |
1fe4c0a0 BP |
1613 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1614 | ofm->command == OFPFC_DELETE_STRICT | |
1615 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1616 | : OFPG_ANY); |
0fb88c18 | 1617 | raw_flags = ofm->flags; |
aa319503 | 1618 | } else { |
0fb88c18 BP |
1619 | uint16_t command; |
1620 | ||
aa319503 BP |
1621 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1622 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1623 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1624 | |
1625 | /* Get the ofp10_flow_mod. */ | |
1626 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1627 | ||
aa319503 | 1628 | /* Translate the rule. */ |
81a76618 BP |
1629 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1630 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1631 | |
81a76618 BP |
1632 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1633 | * highest possible priority. */ | |
1634 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1635 | ? ntohs(ofm->priority) | |
1636 | : UINT16_MAX); | |
1637 | ||
aa319503 BP |
1638 | /* Translate the message. */ |
1639 | command = ntohs(ofm->command); | |
1640 | fm->cookie = htonll(0); | |
1641 | fm->cookie_mask = htonll(0); | |
1642 | fm->new_cookie = ofm->cookie; | |
1643 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1644 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1645 | fm->importance = 0; |
aa319503 | 1646 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1647 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1648 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1649 | raw_flags = ofm->flags; |
aa319503 BP |
1650 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1651 | /* Nicira extended flow_mod. */ | |
1652 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1653 | |
1654 | /* Dissect the message. */ | |
1655 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1656 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1657 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1658 | if (error) { |
1659 | return error; | |
1660 | } | |
aa319503 BP |
1661 | |
1662 | /* Translate the message. */ | |
1663 | command = ntohs(nfm->command); | |
1664 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1665 | /* Flow additions may only set a new cookie, not match an | |
1666 | * existing cookie. */ | |
1667 | return OFPERR_NXBRC_NXM_INVALID; | |
1668 | } | |
81a76618 | 1669 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1670 | fm->new_cookie = nfm->cookie; |
1671 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1672 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1673 | fm->importance = 0; |
aa319503 | 1674 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1675 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1676 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1677 | raw_flags = nfm->flags; |
aa319503 | 1678 | } else { |
428b2edd | 1679 | OVS_NOT_REACHED(); |
aa319503 BP |
1680 | } |
1681 | ||
b8266395 | 1682 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1683 | if (protocol & OFPUTIL_P_TID) { |
1684 | fm->command = command & 0xff; | |
1685 | fm->table_id = command >> 8; | |
1686 | } else { | |
1f42be1c JR |
1687 | if (command > 0xff) { |
1688 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1689 | "but flow_mod_table_id extension is not enabled"); | |
1690 | } | |
aa319503 BP |
1691 | fm->command = command; |
1692 | fm->table_id = 0xff; | |
e729e793 | 1693 | } |
2e4f5fcf BP |
1694 | } |
1695 | ||
1f42be1c JR |
1696 | if (fm->command > OFPFC_DELETE_STRICT) { |
1697 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1698 | } | |
1699 | ||
6fd6ed71 | 1700 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1701 | oh->version, ofpacts); |
1702 | if (error) { | |
1703 | return error; | |
1704 | } | |
6fd6ed71 PS |
1705 | fm->ofpacts = ofpacts->data; |
1706 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1707 | |
0fb88c18 BP |
1708 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1709 | oh->version, &fm->flags); | |
1710 | if (error) { | |
1711 | return error; | |
1712 | } | |
1713 | ||
1714 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1715 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1716 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1717 | * | |
1718 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1719 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1720 | * code, so just state that the flow table is full. */ | |
1721 | return (fm->hard_timeout || fm->idle_timeout | |
1722 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1723 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1724 | } | |
1725 | ||
ba2fe8e9 BP |
1726 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1727 | &fm->match.flow, max_port, | |
1728 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1729 | } |
1730 | ||
638a19b0 JR |
1731 | static enum ofperr |
1732 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1733 | struct ofpbuf *bands) | |
1734 | { | |
1735 | const struct ofp13_meter_band_header *ombh; | |
1736 | struct ofputil_meter_band *mb; | |
1737 | uint16_t n = 0; | |
1738 | ||
1739 | ombh = ofpbuf_try_pull(msg, len); | |
1740 | if (!ombh) { | |
1741 | return OFPERR_OFPBRC_BAD_LEN; | |
1742 | } | |
1743 | ||
1744 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1745 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1746 | /* All supported band types have the same length. */ |
638a19b0 JR |
1747 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1748 | return OFPERR_OFPBRC_BAD_LEN; | |
1749 | } | |
1750 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1751 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1752 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1753 | return OFPERR_OFPMMFC_BAD_BAND; | |
1754 | } | |
638a19b0 JR |
1755 | mb->rate = ntohl(ombh->rate); |
1756 | mb->burst_size = ntohl(ombh->burst_size); | |
1757 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1758 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1759 | n++; | |
1760 | len -= ombh_len; | |
db5a1019 AW |
1761 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1762 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1763 | } |
1764 | if (len) { | |
1765 | return OFPERR_OFPBRC_BAD_LEN; | |
1766 | } | |
1767 | *n_bands = n; | |
1768 | return 0; | |
1769 | } | |
1770 | ||
1771 | enum ofperr | |
1772 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1773 | struct ofputil_meter_mod *mm, | |
1774 | struct ofpbuf *bands) | |
1775 | { | |
1776 | const struct ofp13_meter_mod *omm; | |
1777 | struct ofpbuf b; | |
1778 | ||
1779 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1780 | ofpraw_pull_assert(&b); | |
1781 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1782 | ||
1783 | /* Translate the message. */ | |
1784 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1785 | if (mm->command != OFPMC13_ADD && |
1786 | mm->command != OFPMC13_MODIFY && | |
1787 | mm->command != OFPMC13_DELETE) { | |
1788 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1789 | } | |
638a19b0 JR |
1790 | mm->meter.meter_id = ntohl(omm->meter_id); |
1791 | ||
1792 | if (mm->command == OFPMC13_DELETE) { | |
1793 | mm->meter.flags = 0; | |
1794 | mm->meter.n_bands = 0; | |
1795 | mm->meter.bands = NULL; | |
1796 | } else { | |
1797 | enum ofperr error; | |
1798 | ||
1799 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1800 | if (mm->meter.flags & OFPMF13_KBPS && |
1801 | mm->meter.flags & OFPMF13_PKTPS) { | |
1802 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1803 | } | |
6fd6ed71 | 1804 | mm->meter.bands = bands->data; |
638a19b0 | 1805 | |
6fd6ed71 | 1806 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1807 | if (error) { |
1808 | return error; | |
1809 | } | |
1810 | } | |
1811 | return 0; | |
1812 | } | |
1813 | ||
1814 | void | |
1815 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1816 | { | |
1817 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1818 | *meter_id = ntohl(omr->meter_id); | |
1819 | } | |
1820 | ||
1821 | struct ofpbuf * | |
1822 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1823 | enum ofputil_meter_request_type type, | |
1824 | uint32_t meter_id) | |
1825 | { | |
1826 | struct ofpbuf *msg; | |
1827 | ||
1828 | enum ofpraw raw; | |
1829 | ||
1830 | switch (type) { | |
1831 | case OFPUTIL_METER_CONFIG: | |
1832 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1833 | break; | |
1834 | case OFPUTIL_METER_STATS: | |
1835 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1836 | break; | |
1837 | default: | |
1838 | case OFPUTIL_METER_FEATURES: | |
1839 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1840 | break; | |
1841 | } | |
1842 | ||
1843 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1844 | ||
1845 | if (type != OFPUTIL_METER_FEATURES) { | |
1846 | struct ofp13_meter_multipart_request *omr; | |
1847 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1848 | omr->meter_id = htonl(meter_id); | |
1849 | } | |
1850 | return msg; | |
1851 | } | |
1852 | ||
1853 | static void | |
1854 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1855 | struct ofpbuf *msg) | |
1856 | { | |
1857 | uint16_t n = 0; | |
1858 | ||
1859 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1860 | /* Currently all band types have same size. */ |
638a19b0 JR |
1861 | struct ofp13_meter_band_dscp_remark *ombh; |
1862 | size_t ombh_len = sizeof *ombh; | |
1863 | ||
1864 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1865 | ||
1866 | ombh->type = htons(mb->type); | |
1867 | ombh->len = htons(ombh_len); | |
1868 | ombh->rate = htonl(mb->rate); | |
1869 | ombh->burst_size = htonl(mb->burst_size); | |
1870 | ombh->prec_level = mb->prec_level; | |
1871 | ||
1872 | mb++; | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1877 | void | |
ca6ba700 | 1878 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1879 | const struct ofputil_meter_config *mc) |
1880 | { | |
1881 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 1882 | size_t start_ofs = msg->size; |
6a5490c6 | 1883 | struct ofp13_meter_config *reply; |
638a19b0 | 1884 | |
6a5490c6 | 1885 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1886 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1887 | ||
32756a57 | 1888 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1889 | reply->flags = htons(mc->flags); |
1890 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1891 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1892 | |
1893 | ofpmp_postappend(replies, start_ofs); | |
1894 | } | |
1895 | ||
1896 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1897 | void | |
ca6ba700 | 1898 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1899 | const struct ofputil_meter_stats *ms) |
1900 | { | |
1901 | struct ofp13_meter_stats *reply; | |
1902 | uint16_t n = 0; | |
1903 | uint16_t len; | |
1904 | ||
1905 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1906 | reply = ofpmp_append(replies, len); | |
1907 | ||
1908 | reply->meter_id = htonl(ms->meter_id); | |
1909 | reply->len = htons(len); | |
1910 | memset(reply->pad, 0, sizeof reply->pad); | |
1911 | reply->flow_count = htonl(ms->flow_count); | |
1912 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1913 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1914 | reply->duration_sec = htonl(ms->duration_sec); | |
1915 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1916 | ||
1917 | for (n = 0; n < ms->n_bands; ++n) { | |
1918 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1919 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1920 | ||
1921 | dst->packet_band_count = htonll(src->packet_count); | |
1922 | dst->byte_band_count = htonll(src->byte_count); | |
1923 | } | |
1924 | } | |
1925 | ||
1926 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1927 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1928 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1929 | * it across the call. | |
1930 | * | |
1931 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1932 | * message. Calling this function multiple times for a single 'msg' iterates | |
1933 | * through the replies. 'bands' is cleared for each reply. | |
1934 | * | |
1935 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1936 | * otherwise a positive errno value. */ | |
1937 | int | |
1938 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1939 | struct ofputil_meter_config *mc, | |
1940 | struct ofpbuf *bands) | |
1941 | { | |
1942 | const struct ofp13_meter_config *omc; | |
1943 | enum ofperr err; | |
1944 | ||
1945 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1946 | if (!msg->header) { |
638a19b0 JR |
1947 | ofpraw_pull_assert(msg); |
1948 | } | |
1949 | ||
6fd6ed71 | 1950 | if (!msg->size) { |
638a19b0 JR |
1951 | return EOF; |
1952 | } | |
1953 | ||
1954 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1955 | if (!omc) { | |
0445637d | 1956 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1957 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 1958 | msg->size); |
638a19b0 JR |
1959 | return OFPERR_OFPBRC_BAD_LEN; |
1960 | } | |
1961 | ||
1962 | ofpbuf_clear(bands); | |
1963 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1964 | &mc->n_bands, bands); | |
1965 | if (err) { | |
1966 | return err; | |
1967 | } | |
1968 | mc->meter_id = ntohl(omc->meter_id); | |
1969 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 1970 | mc->bands = bands->data; |
638a19b0 JR |
1971 | |
1972 | return 0; | |
1973 | } | |
1974 | ||
1975 | static enum ofperr | |
1976 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1977 | struct ofpbuf *bands) | |
1978 | { | |
1979 | const struct ofp13_meter_band_stats *ombs; | |
1980 | struct ofputil_meter_band_stats *mbs; | |
1981 | uint16_t n, i; | |
1982 | ||
0445637d JR |
1983 | ombs = ofpbuf_try_pull(msg, len); |
1984 | if (!ombs) { | |
1985 | return OFPERR_OFPBRC_BAD_LEN; | |
1986 | } | |
1987 | ||
638a19b0 JR |
1988 | n = len / sizeof *ombs; |
1989 | if (len != n * sizeof *ombs) { | |
1990 | return OFPERR_OFPBRC_BAD_LEN; | |
1991 | } | |
1992 | ||
638a19b0 JR |
1993 | mbs = ofpbuf_put_uninit(bands, len); |
1994 | ||
1995 | for (i = 0; i < n; ++i) { | |
1996 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
1997 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
1998 | } | |
1999 | *n_bands = n; | |
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2004 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2005 | * decoded into 'bands'. | |
2006 | * | |
2007 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2008 | * message. Calling this function multiple times for a single 'msg' iterates | |
2009 | * through the replies. 'bands' is cleared for each reply. | |
2010 | * | |
2011 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2012 | * otherwise a positive errno value. */ | |
2013 | int | |
2014 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2015 | struct ofputil_meter_stats *ms, | |
2016 | struct ofpbuf *bands) | |
2017 | { | |
2018 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2019 | enum ofperr err; |
2020 | ||
2021 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2022 | if (!msg->header) { |
638a19b0 JR |
2023 | ofpraw_pull_assert(msg); |
2024 | } | |
2025 | ||
6fd6ed71 | 2026 | if (!msg->size) { |
638a19b0 JR |
2027 | return EOF; |
2028 | } | |
2029 | ||
2030 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2031 | if (!oms) { | |
0445637d | 2032 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2033 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2034 | msg->size); |
638a19b0 JR |
2035 | return OFPERR_OFPBRC_BAD_LEN; |
2036 | } | |
638a19b0 JR |
2037 | |
2038 | ofpbuf_clear(bands); | |
0445637d JR |
2039 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2040 | &ms->n_bands, bands); | |
638a19b0 JR |
2041 | if (err) { |
2042 | return err; | |
2043 | } | |
2044 | ms->meter_id = ntohl(oms->meter_id); | |
2045 | ms->flow_count = ntohl(oms->flow_count); | |
2046 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2047 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2048 | ms->duration_sec = ntohl(oms->duration_sec); | |
2049 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2050 | ms->bands = bands->data; |
638a19b0 JR |
2051 | |
2052 | return 0; | |
2053 | } | |
2054 | ||
2055 | void | |
2056 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2057 | struct ofputil_meter_features *mf) | |
2058 | { | |
2059 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2060 | ||
2061 | mf->max_meters = ntohl(omf->max_meter); | |
2062 | mf->band_types = ntohl(omf->band_types); | |
2063 | mf->capabilities = ntohl(omf->capabilities); | |
2064 | mf->max_bands = omf->max_bands; | |
2065 | mf->max_color = omf->max_color; | |
2066 | } | |
2067 | ||
2068 | struct ofpbuf * | |
2069 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2070 | const struct ofp_header *request) | |
2071 | { | |
2072 | struct ofpbuf *reply; | |
2073 | struct ofp13_meter_features *omf; | |
2074 | ||
2075 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2076 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2077 | ||
2078 | omf->max_meter = htonl(mf->max_meters); | |
2079 | omf->band_types = htonl(mf->band_types); | |
2080 | omf->capabilities = htonl(mf->capabilities); | |
2081 | omf->max_bands = mf->max_bands; | |
2082 | omf->max_color = mf->max_color; | |
2083 | ||
2084 | return reply; | |
2085 | } | |
2086 | ||
2087 | struct ofpbuf * | |
2088 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2089 | const struct ofputil_meter_mod *mm) | |
2090 | { | |
2091 | struct ofpbuf *msg; | |
2092 | ||
2093 | struct ofp13_meter_mod *omm; | |
2094 | ||
2095 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2096 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2097 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2098 | omm->command = htons(mm->command); | |
2099 | if (mm->command != OFPMC13_DELETE) { | |
2100 | omm->flags = htons(mm->meter.flags); | |
2101 | } | |
2102 | omm->meter_id = htonl(mm->meter.meter_id); | |
2103 | ||
2104 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2105 | ||
2106 | ofpmsg_update_length(msg); | |
2107 | return msg; | |
2108 | } | |
2109 | ||
aa6305ea SH |
2110 | static ovs_be16 |
2111 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2112 | enum ofputil_protocol protocol) | |
2113 | { | |
2114 | return htons(protocol & OFPUTIL_P_TID | |
2115 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2116 | : fm->command); | |
2117 | } | |
2118 | ||
2e4f5fcf | 2119 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2120 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2121 | struct ofpbuf * |
a9a2da38 | 2122 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2123 | enum ofputil_protocol protocol) |
2e4f5fcf | 2124 | { |
0fb88c18 BP |
2125 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2126 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2127 | struct ofpbuf *msg; |
2128 | ||
27527aa0 | 2129 | switch (protocol) { |
75fa58f8 | 2130 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2131 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2132 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2133 | case OFPUTIL_P_OF14_OXM: |
2134 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2135 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2136 | int tailroom; |
aa6305ea | 2137 | |
75fa58f8 | 2138 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2139 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2140 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2141 | if ((protocol == OFPUTIL_P_OF11_STD |
2142 | && (fm->command == OFPFC_MODIFY || | |
2143 | fm->command == OFPFC_MODIFY_STRICT) | |
2144 | && fm->cookie_mask == htonll(0)) | |
2145 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2146 | ofm->cookie = fm->new_cookie; |
2147 | } else { | |
ba5cc068 | 2148 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2149 | } |
aa6305ea | 2150 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2151 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2152 | || (protocol != OFPUTIL_P_OF11_STD |
2153 | && (fm->command == OFPFC_DELETE || | |
2154 | fm->command == OFPFC_DELETE_STRICT))) { | |
2155 | ofm->table_id = fm->table_id; | |
2156 | } else { | |
2157 | ofm->table_id = 0; | |
2158 | } | |
aa6305ea SH |
2159 | ofm->command = fm->command; |
2160 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2161 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2162 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2163 | ofm->buffer_id = htonl(fm->buffer_id); |
2164 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2165 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2166 | ofm->flags = raw_flags; |
ca26eb44 RB |
2167 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2168 | ofm->importance = htons(fm->importance); | |
2169 | } else { | |
2170 | ofm->importance = 0; | |
2171 | } | |
75fa58f8 | 2172 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2173 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2174 | version); | |
aa6305ea SH |
2175 | break; |
2176 | } | |
2177 | ||
85813857 BP |
2178 | case OFPUTIL_P_OF10_STD: |
2179 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2180 | struct ofp10_flow_mod *ofm; |
2181 | ||
982697a4 BP |
2182 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2183 | fm->ofpacts_len); | |
2184 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2185 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2186 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2187 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2188 | ofm->idle_timeout = htons(fm->idle_timeout); |
2189 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2190 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2191 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2192 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2193 | ofm->flags = raw_flags; |
e3f8f887 JR |
2194 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2195 | version); | |
27527aa0 | 2196 | break; |
3f192f23 | 2197 | } |
2e4f5fcf | 2198 | |
85813857 BP |
2199 | case OFPUTIL_P_OF10_NXM: |
2200 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2201 | struct nx_flow_mod *nfm; |
2202 | int match_len; | |
2203 | ||
982697a4 BP |
2204 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2205 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2206 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2207 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2208 | nfm->cookie = fm->new_cookie; |
81a76618 | 2209 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2210 | nfm = msg->msg; |
2e4f5fcf BP |
2211 | nfm->idle_timeout = htons(fm->idle_timeout); |
2212 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2213 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2214 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2215 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2216 | nfm->flags = raw_flags; |
2e4f5fcf | 2217 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2218 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2219 | version); | |
27527aa0 | 2220 | break; |
3f192f23 | 2221 | } |
27527aa0 BP |
2222 | |
2223 | default: | |
428b2edd | 2224 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2225 | } |
2226 | ||
982697a4 | 2227 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2228 | return msg; |
2229 | } | |
2230 | ||
90bf1e07 | 2231 | static enum ofperr |
0157ad3a SH |
2232 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2233 | const struct ofp10_flow_stats_request *ofsr, | |
2234 | bool aggregate) | |
2e4f5fcf | 2235 | { |
2e4f5fcf | 2236 | fsr->aggregate = aggregate; |
81a76618 | 2237 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2238 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2239 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2240 | fsr->table_id = ofsr->table_id; |
e729e793 | 2241 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2242 | |
2243 | return 0; | |
2244 | } | |
2245 | ||
0157ad3a SH |
2246 | static enum ofperr |
2247 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2248 | struct ofpbuf *b, bool aggregate) | |
2249 | { | |
2250 | const struct ofp11_flow_stats_request *ofsr; | |
2251 | enum ofperr error; | |
2252 | ||
2253 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2254 | fsr->aggregate = aggregate; | |
2255 | fsr->table_id = ofsr->table_id; | |
2256 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2257 | if (error) { | |
2258 | return error; | |
2259 | } | |
7395c052 | 2260 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2261 | fsr->cookie = ofsr->cookie; |
2262 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2263 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2264 | if (error) { |
2265 | return error; | |
2266 | } | |
2267 | ||
2268 | return 0; | |
2269 | } | |
2270 | ||
90bf1e07 | 2271 | static enum ofperr |
81d1ea94 | 2272 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2273 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2274 | { |
2275 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2276 | enum ofperr error; |
2e4f5fcf | 2277 | |
982697a4 | 2278 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2279 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2280 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2281 | if (error) { |
2282 | return error; | |
2283 | } | |
6fd6ed71 | 2284 | if (b->size) { |
90bf1e07 | 2285 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2286 | } |
2287 | ||
2288 | fsr->aggregate = aggregate; | |
4e022ec0 | 2289 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2290 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2291 | fsr->table_id = nfsr->table_id; |
2292 | ||
2293 | return 0; | |
2294 | } | |
2295 | ||
e8f9a7bb | 2296 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2297 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2298 | * | |
2299 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2300 | * request all queues. */ | |
e8f9a7bb VG |
2301 | struct ofpbuf * |
2302 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2303 | ofp_port_t port, |
2304 | uint32_t queue) | |
e8f9a7bb VG |
2305 | { |
2306 | struct ofpbuf *request; | |
2307 | ||
2308 | if (version == OFP10_VERSION) { | |
2309 | struct ofp10_queue_get_config_request *qgcr10; | |
2310 | ||
2311 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2312 | version, 0); | |
2313 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2314 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2315 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2316 | struct ofp11_queue_get_config_request *qgcr11; |
2317 | ||
2318 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2319 | version, 0); | |
2320 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2321 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2322 | } else { |
2323 | struct ofp14_queue_desc_request *qdr14; | |
2324 | ||
2325 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2326 | version, 0); | |
2327 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2328 | qdr14->port = ofputil_port_to_ofp11(port); | |
2329 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2330 | } |
2331 | ||
2332 | return request; | |
2333 | } | |
2334 | ||
2335 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2336 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2337 | * code. */ | |
2338 | enum ofperr | |
2339 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2340 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2341 | { |
2342 | const struct ofp10_queue_get_config_request *qgcr10; | |
2343 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2344 | const struct ofp14_queue_desc_request *qdr14; |
e8f9a7bb VG |
2345 | enum ofpraw raw; |
2346 | struct ofpbuf b; | |
2347 | ||
2348 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2349 | raw = ofpraw_pull_assert(&b); | |
2350 | ||
2351 | switch ((int) raw) { | |
2352 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2353 | qgcr10 = b.data; |
e8f9a7bb | 2354 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2355 | *queue = OFPQ_ALL; |
56085be5 | 2356 | break; |
e8f9a7bb VG |
2357 | |
2358 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2359 | qgcr11 = b.data; |
e016fb63 | 2360 | *queue = OFPQ_ALL; |
56085be5 BP |
2361 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2362 | if (error || *port == OFPP_ANY) { | |
2363 | return error; | |
2364 | } | |
2365 | break; | |
2366 | ||
e016fb63 BP |
2367 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2368 | qdr14 = b.data; | |
2369 | *queue = ntohl(qdr14->queue); | |
2370 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2371 | ||
56085be5 BP |
2372 | default: |
2373 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2374 | } |
2375 | ||
56085be5 BP |
2376 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2377 | ? 0 | |
2378 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2379 | } |
2380 | ||
2381 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2382 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2383 | * may append information about individual queues with | |
2384 | * ofputil_append_queue_get_config_reply(). */ | |
2385 | void | |
2386 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2387 | struct ovs_list *replies) | |
e8f9a7bb | 2388 | { |
e8f9a7bb VG |
2389 | struct ofpbuf *reply; |
2390 | enum ofperr error; | |
e8f9a7bb | 2391 | ofp_port_t port; |
e016fb63 | 2392 | uint32_t queue; |
e8f9a7bb | 2393 | |
e016fb63 | 2394 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2395 | ovs_assert(!error); |
2396 | ||
e016fb63 | 2397 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2398 | switch ((int) raw) { |
2399 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2400 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2401 | request, 0); |
2402 | struct ofp10_queue_get_config_reply *qgcr10 | |
2403 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2404 | qgcr10->port = htons(ofp_to_u16(port)); |
2405 | break; | |
2406 | ||
2407 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2408 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2409 | request, 0); |
2410 | struct ofp11_queue_get_config_reply *qgcr11 | |
2411 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2412 | qgcr11->port = ofputil_port_to_ofp11(port); |
2413 | break; | |
2414 | ||
e016fb63 BP |
2415 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2416 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2417 | break; | |
2418 | ||
e8f9a7bb | 2419 | default: |
428b2edd | 2420 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2421 | } |
2422 | ||
e016fb63 BP |
2423 | list_init(replies); |
2424 | list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2425 | } |
2426 | ||
2427 | static void | |
d2e5fa1f BP |
2428 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2429 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2430 | { |
2431 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2432 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2433 | |
2434 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2435 | oqpr->prop_header.property = htons(property); | |
2436 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2437 | oqpr->rate = htons(rate); | |
2438 | } | |
2439 | } | |
2440 | ||
e016fb63 BP |
2441 | static void |
2442 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2443 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2444 | { | |
2445 | if (rate != UINT16_MAX) { | |
2446 | ofpprop_put_u16(reply, type, rate); | |
2447 | } | |
2448 | } | |
2449 | ||
e8f9a7bb | 2450 | void |
e016fb63 BP |
2451 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2452 | struct ovs_list *replies) | |
e8f9a7bb | 2453 | { |
e016fb63 BP |
2454 | enum ofp_version ofp_version = ofpmp_version(replies); |
2455 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
2456 | size_t start_ofs = reply->size; | |
2457 | size_t len_ofs; | |
e8f9a7bb VG |
2458 | ovs_be16 *len; |
2459 | ||
e016fb63 BP |
2460 | if (ofp_version < OFP14_VERSION) { |
2461 | if (ofp_version < OFP12_VERSION) { | |
2462 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2463 | |
e016fb63 BP |
2464 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2465 | opq10->queue_id = htonl(qc->queue); | |
2466 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2467 | } else { | |
2468 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2469 | |
e016fb63 BP |
2470 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2471 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2472 | opq12->queue_id = htonl(qc->queue); | |
2473 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2474 | } | |
e8f9a7bb | 2475 | |
e016fb63 BP |
2476 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2477 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2478 | } else { | |
2479 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2480 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2481 | oqd->queue_id = htonl(qc->queue); | |
2482 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2483 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2484 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2485 | } | |
e8f9a7bb VG |
2486 | |
2487 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2488 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2489 | |
e016fb63 BP |
2490 | if (ofp_version >= OFP14_VERSION) { |
2491 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2492 | } |
e8f9a7bb VG |
2493 | } |
2494 | ||
2495 | static enum ofperr | |
d2e5fa1f BP |
2496 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2497 | uint16_t *rate) | |
e8f9a7bb | 2498 | { |
d2e5fa1f | 2499 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2500 | |
2501 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2502 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2503 | *rate = ntohs(oqpr->rate); |
2504 | return 0; | |
2505 | } else { | |
2506 | return OFPERR_OFPBRC_BAD_LEN; | |
2507 | } | |
2508 | } | |
2509 | ||
e016fb63 BP |
2510 | static int |
2511 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2512 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2513 | { |
e016fb63 BP |
2514 | const struct ofp_header *oh = msg->header; |
2515 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2516 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2517 | |
e016fb63 BP |
2518 | /* Obtain the port number from the message header. */ |
2519 | if (oh->version == OFP10_VERSION) { | |
2520 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2521 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2522 | } else { | |
2523 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2524 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2525 | &queue->port); | |
2526 | if (error) { | |
2527 | return error; | |
2528 | } | |
e8f9a7bb VG |
2529 | } |
2530 | ||
e016fb63 | 2531 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2532 | if (oh->version < OFP12_VERSION) { |
2533 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2534 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2535 | if (!opq10) { |
2536 | return OFPERR_OFPBRC_BAD_LEN; | |
2537 | } | |
e016fb63 | 2538 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2539 | len = ntohs(opq10->len); |
2540 | opq_len = sizeof *opq10; | |
2541 | } else { | |
2542 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2543 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2544 | if (!opq12) { |
2545 | return OFPERR_OFPBRC_BAD_LEN; | |
2546 | } | |
e016fb63 | 2547 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2548 | len = ntohs(opq12->len); |
2549 | opq_len = sizeof *opq12; | |
2550 | } | |
2551 | ||
e016fb63 BP |
2552 | /* Length check. */ |
2553 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2554 | return OFPERR_OFPBRC_BAD_LEN; |
2555 | } | |
2556 | len -= opq_len; | |
2557 | ||
e016fb63 BP |
2558 | /* Pull properties. The format of these properties differs from used in |
2559 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2560 | while (len > 0) { |
d2e5fa1f | 2561 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2562 | unsigned int property; |
2563 | unsigned int prop_len; | |
2564 | enum ofperr error = 0; | |
2565 | ||
e016fb63 | 2566 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2567 | prop_len = ntohs(hdr->len); |
e016fb63 | 2568 | if (prop_len < sizeof *hdr || prop_len > msg->size || prop_len % 8) { |
e8f9a7bb VG |
2569 | return OFPERR_OFPBRC_BAD_LEN; |
2570 | } | |
2571 | ||
2572 | property = ntohs(hdr->property); | |
2573 | switch (property) { | |
d2e5fa1f BP |
2574 | case OFPQT10_MIN_RATE: |
2575 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2576 | break; |
2577 | ||
d2e5fa1f BP |
2578 | case OFPQT11_MAX_RATE: |
2579 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2580 | break; |
2581 | ||
2582 | default: | |
2583 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2584 | break; | |
2585 | } | |
2586 | if (error) { | |
2587 | return error; | |
2588 | } | |
2589 | ||
e016fb63 | 2590 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2591 | len -= prop_len; |
2592 | } | |
2593 | return 0; | |
2594 | } | |
2595 | ||
e016fb63 BP |
2596 | static int |
2597 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2598 | struct ofputil_queue_config *queue) | |
2599 | { | |
2600 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2601 | if (!oqd14) { | |
2602 | return OFPERR_OFPBRC_BAD_LEN; | |
2603 | } | |
2604 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2605 | if (error) { | |
2606 | return error; | |
2607 | } | |
2608 | queue->queue = ntohl(oqd14->queue_id); | |
2609 | ||
2610 | /* Length check. */ | |
2611 | unsigned int len = ntohs(oqd14->len); | |
2612 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2613 | return OFPERR_OFPBRC_BAD_LEN; | |
2614 | } | |
2615 | len -= sizeof *oqd14; | |
2616 | ||
2617 | struct ofpbuf properties; | |
2618 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
2619 | while (properties.size > 0) { | |
2620 | struct ofpbuf payload; | |
2621 | uint64_t type; | |
2622 | ||
2623 | error = ofpprop_pull(&properties, &payload, &type); | |
2624 | if (error) { | |
2625 | return error; | |
2626 | } | |
2627 | ||
2628 | switch (type) { | |
2629 | case OFPQDPT14_MIN_RATE: | |
2630 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2631 | break; | |
2632 | ||
2633 | case OFPQDPT14_MAX_RATE: | |
2634 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2635 | break; | |
2636 | ||
2637 | default: | |
2638 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2639 | break; | |
2640 | } | |
2641 | ||
2642 | if (error) { | |
2643 | return error; | |
2644 | } | |
2645 | } | |
2646 | ||
2647 | return 0; | |
2648 | } | |
2649 | ||
2650 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2651 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2652 | * must already have pulled off the main header. | |
2653 | * | |
2654 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2655 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2656 | * problem decoding 'reply'. */ | |
2657 | int | |
2658 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2659 | struct ofputil_queue_config *queue) | |
2660 | { | |
2661 | enum ofpraw raw; | |
2662 | if (!msg->header) { | |
2663 | /* Pull OpenFlow header. */ | |
2664 | raw = ofpraw_pull_assert(msg); | |
2665 | ||
2666 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2667 | * doesn't have one at all). */ | |
2668 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2669 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2670 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2671 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2672 | } else { | |
2673 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2674 | } | |
2675 | } else { | |
2676 | raw = ofpraw_decode_assert(msg->header); | |
2677 | } | |
2678 | ||
2679 | queue->min_rate = UINT16_MAX; | |
2680 | queue->max_rate = UINT16_MAX; | |
2681 | ||
2682 | if (!msg->size) { | |
2683 | return EOF; | |
2684 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2685 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2686 | } else { | |
2687 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2688 | } | |
2689 | } | |
2690 | ||
2e4f5fcf | 2691 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2692 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2693 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2694 | enum ofperr |
81d1ea94 | 2695 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2696 | const struct ofp_header *oh) |
2e4f5fcf | 2697 | { |
982697a4 | 2698 | enum ofpraw raw; |
2e4f5fcf | 2699 | struct ofpbuf b; |
2e4f5fcf | 2700 | |
2013493b | 2701 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2702 | raw = ofpraw_pull_assert(&b); |
2703 | switch ((int) raw) { | |
cfc23141 | 2704 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2705 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2706 | |
617da9cd | 2707 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2708 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2709 | |
2710 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2711 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2712 | |
617da9cd SH |
2713 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2714 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2715 | ||
982697a4 BP |
2716 | case OFPRAW_NXST_FLOW_REQUEST: |
2717 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2718 | |
982697a4 BP |
2719 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2720 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2721 | |
2722 | default: | |
2723 | /* Hey, the caller lied. */ | |
428b2edd | 2724 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2725 | } |
2726 | } | |
2727 | ||
2728 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2729 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2730 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2731 | struct ofpbuf * |
81d1ea94 | 2732 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2733 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2734 | { |
2735 | struct ofpbuf *msg; | |
982697a4 | 2736 | enum ofpraw raw; |
2e4f5fcf | 2737 | |
27527aa0 | 2738 | switch (protocol) { |
75fa58f8 | 2739 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2740 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2741 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2742 | case OFPUTIL_P_OF14_OXM: |
2743 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2744 | struct ofp11_flow_stats_request *ofsr; |
2745 | ||
2746 | raw = (fsr->aggregate | |
617da9cd | 2747 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2748 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2749 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2750 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2751 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2752 | ofsr->table_id = fsr->table_id; | |
2753 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2754 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2755 | ofsr->cookie = fsr->cookie; |
2756 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2757 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2758 | break; |
2759 | } | |
2760 | ||
85813857 BP |
2761 | case OFPUTIL_P_OF10_STD: |
2762 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2763 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2764 | |
982697a4 | 2765 | raw = (fsr->aggregate |
617da9cd | 2766 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2767 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2768 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2769 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2770 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2771 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2772 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2773 | break; |
2774 | } | |
2775 | ||
85813857 BP |
2776 | case OFPUTIL_P_OF10_NXM: |
2777 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2778 | struct nx_flow_stats_request *nfsr; |
2779 | int match_len; | |
2780 | ||
982697a4 BP |
2781 | raw = (fsr->aggregate |
2782 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2783 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2784 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2785 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2786 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2787 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2788 | |
6fd6ed71 | 2789 | nfsr = msg->msg; |
4e022ec0 | 2790 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2791 | nfsr->match_len = htons(match_len); |
2792 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2793 | break; |
2794 | } | |
2795 | ||
2796 | default: | |
428b2edd | 2797 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2798 | } |
2799 | ||
2800 | return msg; | |
2801 | } | |
d1e2cf21 | 2802 | |
4ffd1b43 | 2803 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2804 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2805 | * |
2806 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2807 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2808 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2809 | * pointers null and not modify them between calls. | |
2810 | * | |
f27f2134 BP |
2811 | * Most switches don't send the values needed to populate fs->idle_age and |
2812 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2813 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2814 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2815 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2816 | * | |
f25d0cf3 BP |
2817 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2818 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2819 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2820 | * | |
4ffd1b43 BP |
2821 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2822 | * otherwise a positive errno value. */ | |
2823 | int | |
2824 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2825 | struct ofpbuf *msg, |
f25d0cf3 BP |
2826 | bool flow_age_extension, |
2827 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2828 | { |
0fb88c18 | 2829 | const struct ofp_header *oh; |
8f2cded4 | 2830 | size_t instructions_len; |
982697a4 BP |
2831 | enum ofperr error; |
2832 | enum ofpraw raw; | |
4ffd1b43 | 2833 | |
6fd6ed71 | 2834 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2835 | : ofpraw_pull(&raw, msg)); |
2836 | if (error) { | |
2837 | return error; | |
4ffd1b43 | 2838 | } |
6fd6ed71 | 2839 | oh = msg->header; |
4ffd1b43 | 2840 | |
6fd6ed71 | 2841 | if (!msg->size) { |
4ffd1b43 | 2842 | return EOF; |
2e1ae200 JR |
2843 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2844 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2845 | const struct ofp11_flow_stats *ofs; |
2846 | size_t length; | |
2847 | uint16_t padded_match_len; | |
2848 | ||
2849 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2850 | if (!ofs) { | |
437d0d22 | 2851 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2852 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2853 | return EINVAL; |
2854 | } | |
2855 | ||
2856 | length = ntohs(ofs->length); | |
2857 | if (length < sizeof *ofs) { | |
2858 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2859 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2860 | return EINVAL; |
2861 | } | |
2862 | ||
81a76618 | 2863 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2864 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2865 | return EINVAL; | |
2866 | } | |
8f2cded4 | 2867 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2868 | |
81a76618 | 2869 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2870 | fs->table_id = ofs->table_id; |
2871 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2872 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2873 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2874 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2875 | if (oh->version >= OFP14_VERSION) { |
2876 | fs->importance = ntohs(ofs->importance); | |
2877 | } else { | |
2878 | fs->importance = 0; | |
2879 | } | |
0fb88c18 BP |
2880 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2881 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2882 | &fs->flags); | |
2883 | if (error) { | |
2884 | return error; | |
2885 | } | |
2886 | } else { | |
2887 | fs->flags = 0; | |
2888 | } | |
6ec5f0c5 SH |
2889 | fs->idle_age = -1; |
2890 | fs->hard_age = -1; | |
2891 | fs->cookie = ofs->cookie; | |
2892 | fs->packet_count = ntohll(ofs->packet_count); | |
2893 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2894 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2895 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2896 | size_t length; |
2897 | ||
2898 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2899 | if (!ofs) { | |
437d0d22 | 2900 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2901 | "bytes at end", msg->size); |
4ffd1b43 BP |
2902 | return EINVAL; |
2903 | } | |
2904 | ||
2905 | length = ntohs(ofs->length); | |
2906 | if (length < sizeof *ofs) { | |
2907 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2908 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2909 | return EINVAL; |
2910 | } | |
8f2cded4 | 2911 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2912 | |
2913 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2914 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2915 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2916 | fs->table_id = ofs->table_id; |
2917 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2918 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2919 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2920 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2921 | fs->importance = 0; |
f27f2134 BP |
2922 | fs->idle_age = -1; |
2923 | fs->hard_age = -1; | |
4ffd1b43 BP |
2924 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2925 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2926 | fs->flags = 0; |
982697a4 | 2927 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2928 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2929 | size_t match_len, length; |
4ffd1b43 BP |
2930 | |
2931 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2932 | if (!nfs) { | |
437d0d22 | 2933 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2934 | "bytes at end", msg->size); |
4ffd1b43 BP |
2935 | return EINVAL; |
2936 | } | |
2937 | ||
2938 | length = ntohs(nfs->length); | |
2939 | match_len = ntohs(nfs->match_len); | |
2940 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2941 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2942 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2943 | return EINVAL; |
2944 | } | |
81a76618 | 2945 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2946 | return EINVAL; |
2947 | } | |
8f2cded4 | 2948 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2949 | |
2950 | fs->cookie = nfs->cookie; | |
2951 | fs->table_id = nfs->table_id; | |
2952 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2953 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2954 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2955 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2956 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2957 | fs->importance = 0; |
f27f2134 BP |
2958 | fs->idle_age = -1; |
2959 | fs->hard_age = -1; | |
2960 | if (flow_age_extension) { | |
2961 | if (nfs->idle_age) { | |
2962 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2963 | } | |
2964 | if (nfs->hard_age) { | |
2965 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2966 | } | |
2967 | } | |
4ffd1b43 BP |
2968 | fs->packet_count = ntohll(nfs->packet_count); |
2969 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2970 | fs->flags = 0; |
4ffd1b43 | 2971 | } else { |
428b2edd | 2972 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2973 | } |
2974 | ||
8f2cded4 BP |
2975 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2976 | ofpacts)) { | |
2977 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2978 | return EINVAL; | |
2979 | } | |
6fd6ed71 PS |
2980 | fs->ofpacts = ofpacts->data; |
2981 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 2982 | |
4ffd1b43 BP |
2983 | return 0; |
2984 | } | |
2985 | ||
5e9d0469 BP |
2986 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2987 | * | |
2988 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2989 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2990 | static uint64_t | |
2991 | unknown_to_zero(uint64_t count) | |
2992 | { | |
2993 | return count != UINT64_MAX ? count : 0; | |
2994 | } | |
2995 | ||
349adfb2 BP |
2996 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2997 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2998 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2999 | void |
3000 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 3001 | struct ovs_list *replies) |
349adfb2 | 3002 | { |
f25d0cf3 | 3003 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 3004 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3005 | enum ofp_version version = ofpmp_version(replies); |
3006 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3007 | |
2e1ae200 | 3008 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3009 | struct ofp11_flow_stats *ofs; |
3010 | ||
3011 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3012 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3013 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3014 | version); | |
22a86f18 SH |
3015 | |
3016 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3017 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3018 | ofs->table_id = fs->table_id; |
3019 | ofs->pad = 0; | |
3020 | ofs->duration_sec = htonl(fs->duration_sec); | |
3021 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3022 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3023 | ofs->idle_timeout = htons(fs->idle_timeout); |
3024 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3025 | if (version >= OFP14_VERSION) { |
3026 | ofs->importance = htons(fs->importance); | |
3027 | } else { | |
3028 | ofs->importance = 0; | |
3029 | } | |
0fb88c18 | 3030 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3031 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3032 | } else { |
3033 | ofs->flags = 0; | |
3034 | } | |
22a86f18 SH |
3035 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3036 | ofs->cookie = fs->cookie; | |
3037 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3038 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3039 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3040 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3041 | |
1a59dc2c | 3042 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3043 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3044 | version); | |
1a59dc2c | 3045 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3046 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3047 | ofs->table_id = fs->table_id; |
3048 | ofs->pad = 0; | |
81a76618 | 3049 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3050 | ofs->duration_sec = htonl(fs->duration_sec); |
3051 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3052 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3053 | ofs->idle_timeout = htons(fs->idle_timeout); |
3054 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3055 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3056 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3057 | put_32aligned_be64(&ofs->packet_count, |
3058 | htonll(unknown_to_zero(fs->packet_count))); | |
3059 | put_32aligned_be64(&ofs->byte_count, | |
3060 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3061 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3062 | struct nx_flow_stats *nfs; |
1a59dc2c | 3063 | int match_len; |
349adfb2 | 3064 | |
1a59dc2c | 3065 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3066 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3067 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3068 | version); | |
1a59dc2c | 3069 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3070 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3071 | nfs->table_id = fs->table_id; |
3072 | nfs->pad = 0; | |
3073 | nfs->duration_sec = htonl(fs->duration_sec); | |
3074 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3075 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3076 | nfs->idle_timeout = htons(fs->idle_timeout); |
3077 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3078 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3079 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3080 | : UINT16_MAX); | |
3081 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3082 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3083 | : UINT16_MAX); | |
1a59dc2c | 3084 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3085 | nfs->cookie = fs->cookie; |
3086 | nfs->packet_count = htonll(fs->packet_count); | |
3087 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3088 | } else { |
428b2edd | 3089 | OVS_NOT_REACHED(); |
349adfb2 | 3090 | } |
f25d0cf3 | 3091 | |
982697a4 | 3092 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3093 | } |
3094 | ||
76c93b22 | 3095 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3096 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3097 | struct ofpbuf * |
3098 | ofputil_encode_aggregate_stats_reply( | |
3099 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3100 | const struct ofp_header *request) |
76c93b22 | 3101 | { |
a814ba0f BP |
3102 | struct ofp_aggregate_stats_reply *asr; |
3103 | uint64_t packet_count; | |
3104 | uint64_t byte_count; | |
76c93b22 | 3105 | struct ofpbuf *msg; |
982697a4 | 3106 | enum ofpraw raw; |
76c93b22 | 3107 | |
982697a4 | 3108 | ofpraw_decode(&raw, request); |
617da9cd | 3109 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3110 | packet_count = unknown_to_zero(stats->packet_count); |
3111 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3112 | } else { |
a814ba0f BP |
3113 | packet_count = stats->packet_count; |
3114 | byte_count = stats->byte_count; | |
76c93b22 BP |
3115 | } |
3116 | ||
a814ba0f BP |
3117 | msg = ofpraw_alloc_stats_reply(request, 0); |
3118 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3119 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3120 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3121 | asr->flow_count = htonl(stats->flow_count); | |
3122 | ||
76c93b22 BP |
3123 | return msg; |
3124 | } | |
3125 | ||
982697a4 BP |
3126 | enum ofperr |
3127 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3128 | const struct ofp_header *reply) | |
3129 | { | |
a814ba0f | 3130 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3131 | struct ofpbuf msg; |
982697a4 BP |
3132 | |
3133 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3134 | ofpraw_pull_assert(&msg); |
3135 | ||
6fd6ed71 | 3136 | asr = msg.msg; |
a814ba0f BP |
3137 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3138 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3139 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3140 | |
3141 | return 0; | |
3142 | } | |
3143 | ||
b78f6b77 BP |
3144 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3145 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3146 | * an OpenFlow error code. */ | |
90bf1e07 | 3147 | enum ofperr |
9b045a0c | 3148 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3149 | const struct ofp_header *oh) |
9b045a0c | 3150 | { |
982697a4 BP |
3151 | enum ofpraw raw; |
3152 | struct ofpbuf b; | |
9b045a0c | 3153 | |
982697a4 BP |
3154 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3155 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3156 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3157 | const struct ofp12_flow_removed *ofr; | |
3158 | enum ofperr error; | |
3159 | ||
3160 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3161 | ||
81a76618 | 3162 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3163 | if (error) { |
3164 | return error; | |
3165 | } | |
3166 | ||
81a76618 | 3167 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3168 | fr->cookie = ofr->cookie; |
3169 | fr->reason = ofr->reason; | |
95216219 | 3170 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3171 | fr->duration_sec = ntohl(ofr->duration_sec); |
3172 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3173 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3174 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3175 | fr->packet_count = ntohll(ofr->packet_count); | |
3176 | fr->byte_count = ntohll(ofr->byte_count); | |
3177 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3178 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3179 | |
982697a4 BP |
3180 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3181 | ||
81a76618 BP |
3182 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3183 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3184 | fr->cookie = ofr->cookie; |
3185 | fr->reason = ofr->reason; | |
95216219 | 3186 | fr->table_id = 255; |
9b045a0c BP |
3187 | fr->duration_sec = ntohl(ofr->duration_sec); |
3188 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3189 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3190 | fr->hard_timeout = 0; |
9b045a0c BP |
3191 | fr->packet_count = ntohll(ofr->packet_count); |
3192 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3193 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3194 | struct nx_flow_removed *nfr; |
c2725b60 | 3195 | enum ofperr error; |
9b045a0c | 3196 | |
9b045a0c | 3197 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3198 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3199 | NULL, NULL); | |
9b045a0c BP |
3200 | if (error) { |
3201 | return error; | |
3202 | } | |
6fd6ed71 | 3203 | if (b.size) { |
90bf1e07 | 3204 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3205 | } |
3206 | ||
81a76618 | 3207 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3208 | fr->cookie = nfr->cookie; |
3209 | fr->reason = nfr->reason; | |
745bfd5e | 3210 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3211 | fr->duration_sec = ntohl(nfr->duration_sec); |
3212 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3213 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3214 | fr->hard_timeout = 0; |
9b045a0c BP |
3215 | fr->packet_count = ntohll(nfr->packet_count); |
3216 | fr->byte_count = ntohll(nfr->byte_count); | |
3217 | } else { | |
428b2edd | 3218 | OVS_NOT_REACHED(); |
9b045a0c BP |
3219 | } |
3220 | ||
3221 | return 0; | |
3222 | } | |
3223 | ||
588cd7b5 | 3224 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3225 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3226 | * message. */ |
3227 | struct ofpbuf * | |
3228 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3229 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3230 | { |
3231 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3232 | enum ofp_flow_removed_reason reason = fr->reason; |
3233 | ||
3234 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3235 | reason = OFPRR_DELETE; | |
3236 | } | |
588cd7b5 | 3237 | |
27527aa0 | 3238 | switch (protocol) { |
75fa58f8 | 3239 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3240 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3241 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3242 | case OFPUTIL_P_OF14_OXM: |
3243 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3244 | struct ofp12_flow_removed *ofr; |
3245 | ||
3246 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3247 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3248 | htonl(0), |
3249 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3250 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3251 | ofr->cookie = fr->cookie; | |
81a76618 | 3252 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3253 | ofr->reason = reason; |
95216219 | 3254 | ofr->table_id = fr->table_id; |
83974732 SH |
3255 | ofr->duration_sec = htonl(fr->duration_sec); |
3256 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3257 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3258 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3259 | ofr->packet_count = htonll(fr->packet_count); |
3260 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3261 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3262 | break; |
3263 | } | |
3264 | ||
85813857 BP |
3265 | case OFPUTIL_P_OF10_STD: |
3266 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3267 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3268 | |
982697a4 BP |
3269 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3270 | htonl(0), 0); | |
3271 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3272 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3273 | ofr->cookie = fr->cookie; |
81a76618 | 3274 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3275 | ofr->reason = reason; |
588cd7b5 BP |
3276 | ofr->duration_sec = htonl(fr->duration_sec); |
3277 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3278 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3279 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3280 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3281 | break; |
3282 | } | |
3283 | ||
85813857 BP |
3284 | case OFPUTIL_P_OF10_NXM: |
3285 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3286 | struct nx_flow_removed *nfr; |
3287 | int match_len; | |
3288 | ||
982697a4 BP |
3289 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3290 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3291 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3292 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3293 | |
6fd6ed71 | 3294 | nfr = msg->msg; |
588cd7b5 | 3295 | nfr->cookie = fr->cookie; |
81a76618 | 3296 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3297 | nfr->reason = reason; |
745bfd5e | 3298 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3299 | nfr->duration_sec = htonl(fr->duration_sec); |
3300 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3301 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3302 | nfr->match_len = htons(match_len); | |
3303 | nfr->packet_count = htonll(fr->packet_count); | |
3304 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3305 | break; |
3306 | } | |
3307 | ||
3308 | default: | |
428b2edd | 3309 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3310 | } |
3311 | ||
3312 | return msg; | |
3313 | } | |
3314 | ||
9bfe9334 BP |
3315 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
3316 | * 'pin->packet' and 'pin->len' with the part of the packet actually included | |
3317 | * in the message, and '*total_len' with the original length of the packet | |
3318 | * (which is larger than 'packet->len' if only part of the packet was | |
3319 | * included). Stores the packet's buffer ID in '*buffer_id' (UINT32_MAX if it | |
3320 | * was not buffered). | |
3321 | * | |
3322 | * Returns 0 if successful, otherwise an OpenFlow error code. */ | |
f7cc6bd8 | 3323 | enum ofperr |
9bfe9334 BP |
3324 | ofputil_decode_packet_in(const struct ofp_header *oh, |
3325 | struct ofputil_packet_in *pin, | |
3326 | size_t *total_len, uint32_t *buffer_id) | |
65120a8a | 3327 | { |
982697a4 BP |
3328 | enum ofpraw raw; |
3329 | struct ofpbuf b; | |
65120a8a | 3330 | |
65120a8a | 3331 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3332 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3333 | |
982697a4 BP |
3334 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3335 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3336 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3337 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3338 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3339 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3340 | : NULL); | |
3341 | enum ofperr error = oxm_pull_match_loose(&b, &pin->flow_metadata); | |
7cfb9651 SH |
3342 | if (error) { |
3343 | return error; | |
3344 | } | |
3345 | ||
3346 | if (!ofpbuf_try_pull(&b, 2)) { | |
3347 | return OFPERR_OFPBRC_BAD_LEN; | |
3348 | } | |
3349 | ||
43948fa5 BP |
3350 | pin->reason = opi->reason; |
3351 | pin->table_id = opi->table_id; | |
9bfe9334 BP |
3352 | *buffer_id = ntohl(opi->buffer_id); |
3353 | *total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3354 | if (cookie) { |
3355 | pin->cookie = *cookie; | |
2e1ae200 | 3356 | } |
7cfb9651 | 3357 | |
50dcbd8e | 3358 | pin->packet = b.data; |
9bfe9334 | 3359 | pin->len = b.size; |
7cfb9651 | 3360 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3361 | const struct ofp10_packet_in *opi; |
982697a4 | 3362 | |
31a9e63f | 3363 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3364 | |
3365 | pin->packet = opi->data; | |
9bfe9334 | 3366 | pin->len = b.size; |
65120a8a | 3367 | |
50dcbd8e | 3368 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3369 | match_set_in_port(&pin->flow_metadata, |
3370 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3371 | pin->reason = opi->reason; |
9bfe9334 BP |
3372 | *buffer_id = ntohl(opi->buffer_id); |
3373 | *total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3374 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3375 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3376 | ofp_port_t in_port; |
4d197ebb BP |
3377 | enum ofperr error; |
3378 | ||
3379 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3380 | ||
6fd6ed71 | 3381 | pin->packet = b.data; |
9bfe9334 | 3382 | pin->len = b.size; |
4d197ebb | 3383 | |
9bfe9334 | 3384 | *buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3385 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3386 | if (error) { |
3387 | return error; | |
3388 | } | |
50dcbd8e JG |
3389 | match_init_catchall(&pin->flow_metadata); |
3390 | match_set_in_port(&pin->flow_metadata, in_port); | |
9bfe9334 | 3391 | *total_len = ntohs(opi->total_len); |
4d197ebb BP |
3392 | pin->reason = opi->reason; |
3393 | pin->table_id = opi->table_id; | |
982697a4 | 3394 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3395 | const struct nx_packet_in *npi; |
54834960 EJ |
3396 | int error; |
3397 | ||
54834960 | 3398 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3399 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3400 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3401 | if (error) { |
3402 | return error; | |
3403 | } | |
3404 | ||
3405 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3406 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3407 | } |
3408 | ||
54834960 EJ |
3409 | pin->reason = npi->reason; |
3410 | pin->table_id = npi->table_id; | |
3411 | pin->cookie = npi->cookie; | |
3412 | ||
9bfe9334 BP |
3413 | *buffer_id = ntohl(npi->buffer_id); |
3414 | *total_len = ntohs(npi->total_len); | |
7cfb9651 | 3415 | |
50dcbd8e | 3416 | pin->packet = b.data; |
9bfe9334 | 3417 | pin->len = b.size; |
65120a8a | 3418 | } else { |
428b2edd | 3419 | OVS_NOT_REACHED(); |
65120a8a EJ |
3420 | } |
3421 | ||
3422 | return 0; | |
3423 | } | |
3424 | ||
9bfe9334 BP |
3425 | static int |
3426 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3427 | enum ofp_version version) | |
3428 | { | |
3429 | switch (reason) { | |
3430 | case OFPR_NO_MATCH: | |
3431 | case OFPR_ACTION: | |
3432 | case OFPR_INVALID_TTL: | |
3433 | return reason; | |
3434 | ||
3435 | case OFPR_ACTION_SET: | |
3436 | case OFPR_GROUP: | |
3437 | case OFPR_PACKET_OUT: | |
3438 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3439 | ||
3440 | case OFPR_EXPLICIT_MISS: | |
3441 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3442 | ||
3443 | case OFPR_IMPLICIT_MISS: | |
3444 | return OFPR_NO_MATCH; | |
3445 | ||
3446 | case OFPR_N_REASONS: | |
3447 | default: | |
3448 | OVS_NOT_REACHED(); | |
3449 | } | |
3450 | } | |
3451 | ||
0f83fea0 | 3452 | static struct ofpbuf * |
9bfe9334 BP |
3453 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin, |
3454 | uint32_t buffer_id) | |
0f83fea0 BP |
3455 | { |
3456 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3457 | struct ofpbuf *msg; |
0f83fea0 | 3458 | |
9bfe9334 BP |
3459 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
3460 | htonl(0), pin->len); | |
3461 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); | |
3462 | opi->total_len = htons(pin->len); | |
50dcbd8e | 3463 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 BP |
3464 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
3465 | opi->buffer_id = htonl(buffer_id); | |
0f83fea0 | 3466 | |
9bfe9334 | 3467 | return msg; |
0f83fea0 BP |
3468 | } |
3469 | ||
3470 | static struct ofpbuf * | |
9bfe9334 BP |
3471 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
3472 | uint32_t buffer_id) | |
0f83fea0 BP |
3473 | { |
3474 | struct nx_packet_in *npi; | |
9bfe9334 | 3475 | struct ofpbuf *msg; |
0f83fea0 BP |
3476 | size_t match_len; |
3477 | ||
0f83fea0 | 3478 | /* The final argument is just an estimate of the space required. */ |
9bfe9334 BP |
3479 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, |
3480 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->len); | |
3481 | ofpbuf_put_zeros(msg, sizeof *npi); | |
3482 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3483 | ofpbuf_put_zeros(msg, 2); | |
3484 | ||
3485 | npi = msg->msg; | |
3486 | npi->buffer_id = htonl(buffer_id); | |
3487 | npi->total_len = htons(pin->len); | |
3488 | npi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); | |
0f83fea0 BP |
3489 | npi->table_id = pin->table_id; |
3490 | npi->cookie = pin->cookie; | |
3491 | npi->match_len = htons(match_len); | |
3492 | ||
9bfe9334 | 3493 | return msg; |
0f83fea0 BP |
3494 | } |
3495 | ||
4d197ebb | 3496 | static struct ofpbuf * |
9bfe9334 BP |
3497 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin, |
3498 | uint32_t buffer_id) | |
4d197ebb BP |
3499 | { |
3500 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3501 | struct ofpbuf *msg; |
4d197ebb | 3502 | |
9bfe9334 BP |
3503 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
3504 | htonl(0), pin->len); | |
3505 | opi = ofpbuf_put_zeros(msg, sizeof *opi); | |
3506 | opi->buffer_id = htonl(buffer_id); | |
3507 | opi->in_port = ofputil_port_to_ofp11( | |
3508 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3509 | opi->in_phy_port = opi->in_port; |
9bfe9334 BP |
3510 | opi->total_len = htons(pin->len); |
3511 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); | |
4d197ebb BP |
3512 | opi->table_id = pin->table_id; |
3513 | ||
9bfe9334 | 3514 | return msg; |
4d197ebb BP |
3515 | } |
3516 | ||
0f83fea0 BP |
3517 | static struct ofpbuf * |
3518 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
9bfe9334 BP |
3519 | enum ofp_version version, |
3520 | uint32_t buffer_id) | |
0f83fea0 | 3521 | { |
43948fa5 BP |
3522 | enum ofpraw raw = (version >= OFP13_VERSION |
3523 | ? OFPRAW_OFPT13_PACKET_IN | |
3524 | : OFPRAW_OFPT12_PACKET_IN); | |
3525 | struct ofpbuf *msg; | |
0f83fea0 | 3526 | |
0f83fea0 | 3527 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3528 | msg = ofpraw_alloc_xid(raw, version, |
9bfe9334 | 3529 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->len); |
0f83fea0 | 3530 | |
43948fa5 | 3531 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
9bfe9334 BP |
3532 | opi->buffer_id = htonl(buffer_id); |
3533 | opi->total_len = htons(pin->len); | |
3534 | opi->reason = encode_packet_in_reason(pin->reason, version); | |
43948fa5 | 3535 | opi->table_id = pin->table_id; |
9bfe9334 | 3536 | |
43948fa5 BP |
3537 | if (version >= OFP13_VERSION) { |
3538 | ovs_be64 cookie = pin->cookie; | |
3539 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3540 | } |
3541 | ||
43948fa5 BP |
3542 | oxm_put_match(msg, &pin->flow_metadata, version); |
3543 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3544 | |
3545 | return msg; | |
0f83fea0 BP |
3546 | } |
3547 | ||
9bfe9334 BP |
3548 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message for |
3549 | * 'protocol', using the packet-in format specified by 'packet_in_format'. | |
3550 | * | |
3551 | * If 'pkt_buf' is nonnull and 'max_len' allows the packet to be buffered, this | |
3552 | * function will attempt to obtain a buffer ID from 'pktbuf' and truncate the | |
3553 | * packet to 'max_len' bytes. Otherwise, or if 'pktbuf' doesn't have a free | |
3554 | * buffer, it will send the whole packet without buffering. */ | |
ebb57021 | 3555 | struct ofpbuf * |
54834960 | 3556 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3557 | enum ofputil_protocol protocol, |
9bfe9334 BP |
3558 | enum nx_packet_in_format packet_in_format, |
3559 | uint16_t max_len, struct pktbuf *pktbuf) | |
ebb57021 | 3560 | { |
9bfe9334 BP |
3561 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3562 | ||
3563 | /* Get buffer ID. */ | |
3564 | ofp_port_t in_port = pin->flow_metadata.flow.in_port.ofp_port; | |
3565 | uint32_t buffer_id = (max_len != OFPCML12_NO_BUFFER && pktbuf | |
3566 | ? pktbuf_save(pktbuf, pin->packet, | |
3567 | pin->len, in_port) | |
3568 | : UINT32_MAX); | |
ebb57021 | 3569 | |
9bfe9334 | 3570 | struct ofpbuf *msg; |
0f83fea0 BP |
3571 | switch (protocol) { |
3572 | case OFPUTIL_P_OF10_STD: | |
3573 | case OFPUTIL_P_OF10_STD_TID: | |
3574 | case OFPUTIL_P_OF10_NXM: | |
3575 | case OFPUTIL_P_OF10_NXM_TID: | |
9bfe9334 BP |
3576 | msg = (packet_in_format == NXPIF_NXM |
3577 | ? ofputil_encode_nx_packet_in(pin, buffer_id) | |
3578 | : ofputil_encode_ofp10_packet_in(pin, buffer_id)); | |
0f83fea0 | 3579 | break; |
2e1ae200 | 3580 | |
0f83fea0 | 3581 | case OFPUTIL_P_OF11_STD: |
9bfe9334 | 3582 | msg = ofputil_encode_ofp11_packet_in(pin, buffer_id); |
4d197ebb | 3583 | break; |
d94240ec | 3584 | |
0f83fea0 BP |
3585 | case OFPUTIL_P_OF12_OXM: |
3586 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3587 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3588 | case OFPUTIL_P_OF15_OXM: |
9bfe9334 | 3589 | msg = ofputil_encode_ofp12_packet_in(pin, version, buffer_id); |
0f83fea0 BP |
3590 | break; |
3591 | ||
3592 | default: | |
428b2edd | 3593 | OVS_NOT_REACHED(); |
54834960 | 3594 | } |
54834960 | 3595 | |
9bfe9334 BP |
3596 | /* Append some of the packet: |
3597 | * | |
3598 | * - If not buffered, the whole thing. | |
3599 | * | |
3600 | * - Otherwise, no more than 'max_len' bytes. */ | |
3601 | ofpbuf_put(msg, pin->packet, | |
3602 | (buffer_id == UINT32_MAX | |
3603 | ? pin->len | |
3604 | : MIN(max_len, pin->len))); | |
3605 | ||
3606 | ofpmsg_update_length(msg); | |
3607 | return msg; | |
ebb57021 BP |
3608 | } |
3609 | ||
5014a89d BP |
3610 | /* Returns a string form of 'reason'. The return value is either a statically |
3611 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3612 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3613 | const char * |
5014a89d BP |
3614 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3615 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3616 | { |
7c1a76a4 BP |
3617 | switch (reason) { |
3618 | case OFPR_NO_MATCH: | |
3619 | return "no_match"; | |
3620 | case OFPR_ACTION: | |
3621 | return "action"; | |
3622 | case OFPR_INVALID_TTL: | |
3623 | return "invalid_ttl"; | |
424467c6 SS |
3624 | case OFPR_ACTION_SET: |
3625 | return "action_set"; | |
3626 | case OFPR_GROUP: | |
3627 | return "group"; | |
3628 | case OFPR_PACKET_OUT: | |
3629 | return "packet_out"; | |
9bfe9334 BP |
3630 | case OFPR_EXPLICIT_MISS: |
3631 | case OFPR_IMPLICIT_MISS: | |
3632 | return ""; | |
7c1a76a4 BP |
3633 | |
3634 | case OFPR_N_REASONS: | |
3635 | default: | |
5014a89d BP |
3636 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3637 | return reasonbuf; | |
7c1a76a4 BP |
3638 | } |
3639 | } | |
3640 | ||
3641 | bool | |
3642 | ofputil_packet_in_reason_from_string(const char *s, | |
3643 | enum ofp_packet_in_reason *reason) | |
3644 | { | |
3645 | int i; | |
3646 | ||
3647 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3648 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3649 | const char *reason_s; | |
3650 | ||
3651 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3652 | sizeof reasonbuf); | |
3653 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3654 | *reason = i; |
3655 | return true; | |
3656 | } | |
3657 | } | |
3658 | return false; | |
3659 | } | |
3660 | ||
f25d0cf3 BP |
3661 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3662 | * 'po'. | |
3663 | * | |
3664 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3665 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3666 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3667 | * | |
3668 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3669 | enum ofperr |
3670 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3671 | const struct ofp_header *oh, |
f25d0cf3 | 3672 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3673 | { |
982697a4 | 3674 | enum ofpraw raw; |
c6a93eb7 BP |
3675 | struct ofpbuf b; |
3676 | ||
982697a4 BP |
3677 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3678 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3679 | |
9abca1e5 | 3680 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
3681 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3682 | enum ofperr error; | |
3683 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3684 | ||
3685 | po->buffer_id = ntohl(opo->buffer_id); | |
3686 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3687 | if (error) { | |
3688 | return error; | |
3689 | } | |
3690 | ||
e3f8f887 JR |
3691 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3692 | oh->version, ofpacts); | |
eb5ee596 SH |
3693 | if (error) { |
3694 | return error; | |
3695 | } | |
eb5ee596 | 3696 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3697 | enum ofperr error; |
31a9e63f | 3698 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3699 | |
3700 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3701 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3702 | |
e3f8f887 JR |
3703 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3704 | oh->version, ofpacts); | |
8a6bc7cd SH |
3705 | if (error) { |
3706 | return error; | |
3707 | } | |
3708 | } else { | |
428b2edd | 3709 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3710 | } |
3711 | ||
4e022ec0 AW |
3712 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3713 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3714 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3715 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3716 | po->in_port); | |
2e1bfcb6 | 3717 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3718 | } |
3719 | ||
6fd6ed71 PS |
3720 | po->ofpacts = ofpacts->data; |
3721 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3722 | |
3723 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
3724 | po->packet = b.data; |
3725 | po->packet_len = b.size; | |
c6a93eb7 BP |
3726 | } else { |
3727 | po->packet = NULL; | |
3728 | po->packet_len = 0; | |
3729 | } | |
3730 | ||
3731 | return 0; | |
3732 | } | |
6c038611 BP |
3733 | \f |
3734 | /* ofputil_phy_port */ | |
3735 | ||
3736 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3737 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3738 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3739 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3740 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3741 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3742 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3743 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3744 | ||
3745 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3746 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3747 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3748 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3749 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3750 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3751 | |
9e1fd49b BP |
3752 | static enum netdev_features |
3753 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3754 | { |
3755 | uint32_t ofp10 = ntohl(ofp10_); | |
3756 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3757 | } | |
3758 | ||
9e1fd49b BP |
3759 | static ovs_be32 |
3760 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3761 | { |
3762 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3763 | } | |
c6a93eb7 | 3764 | |
9e1fd49b BP |
3765 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3766 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3767 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3768 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3769 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3770 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3771 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3772 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3773 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3774 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3775 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3776 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3777 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3778 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3779 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3780 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3781 | ||
3782 | static enum netdev_features | |
3783 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3784 | { | |
3785 | return ntohl(ofp11) & 0xffff; | |
3786 | } | |
3787 | ||
3788 | static ovs_be32 | |
3789 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3790 | { | |
3791 | return htonl(features & 0xffff); | |
3792 | } | |
3793 | ||
3794 | static enum ofperr | |
3795 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3796 | const struct ofp10_phy_port *opp) | |
3797 | { | |
4e022ec0 | 3798 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 3799 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
3800 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
3801 | ||
3802 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3803 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3804 | ||
3805 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3806 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3807 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3808 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3809 | ||
d02a5f8e BP |
3810 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3811 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3812 | |
3813 | return 0; | |
3814 | } | |
3815 | ||
3816 | static enum ofperr | |
3817 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3818 | const struct ofp11_port *op) | |
3819 | { | |
3820 | enum ofperr error; | |
3821 | ||
9e1fd49b BP |
3822 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3823 | if (error) { | |
3824 | return error; | |
3825 | } | |
74ff3298 | 3826 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
3827 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3828 | ||
3829 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3830 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3831 | |
3832 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3833 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3834 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3835 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3836 | ||
3837 | pp->curr_speed = ntohl(op->curr_speed); | |
3838 | pp->max_speed = ntohl(op->max_speed); | |
3839 | ||
3840 | return 0; | |
3841 | } | |
3842 | ||
8c3cc785 BP |
3843 | static enum ofperr |
3844 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3845 | struct ofputil_phy_port *pp) | |
3846 | { | |
6fd6ed71 | 3847 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 3848 | |
6fd6ed71 | 3849 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
3850 | return OFPERR_OFPBPC_BAD_LEN; |
3851 | } | |
3852 | ||
3853 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3854 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3855 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3856 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3857 | ||
3858 | pp->curr_speed = ntohl(eth->curr_speed); | |
3859 | pp->max_speed = ntohl(eth->max_speed); | |
3860 | ||
3861 | return 0; | |
3862 | } | |
3863 | ||
3864 | static enum ofperr | |
3865 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3866 | { | |
3867 | struct ofpbuf properties; | |
3868 | struct ofp14_port *op; | |
3869 | enum ofperr error; | |
3870 | size_t len; | |
3871 | ||
3872 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3873 | if (!op) { | |
3874 | return OFPERR_OFPBRC_BAD_LEN; | |
3875 | } | |
3876 | ||
3877 | len = ntohs(op->length); | |
6fd6ed71 | 3878 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
3879 | return OFPERR_OFPBRC_BAD_LEN; |
3880 | } | |
3881 | len -= sizeof *op; | |
3882 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3883 | ||
3884 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3885 | if (error) { | |
3886 | return error; | |
3887 | } | |
74ff3298 | 3888 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
3889 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3890 | ||
3891 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3892 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3893 | ||
6fd6ed71 | 3894 | while (properties.size > 0) { |
8c3cc785 BP |
3895 | struct ofpbuf payload; |
3896 | enum ofperr error; | |
34a543e3 | 3897 | uint64_t type; |
8c3cc785 | 3898 | |
c5562271 | 3899 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
3900 | if (error) { |
3901 | return error; | |
3902 | } | |
3903 | ||
3904 | switch (type) { | |
3905 | case OFPPDPT14_ETHERNET: | |
3906 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3907 | break; | |
3908 | ||
3909 | default: | |
34a543e3 | 3910 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
3911 | break; |
3912 | } | |
3913 | ||
3914 | if (error) { | |
3915 | return error; | |
3916 | } | |
3917 | } | |
3918 | ||
3919 | return 0; | |
3920 | } | |
3921 | ||
9e1fd49b BP |
3922 | static void |
3923 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3924 | struct ofp10_phy_port *opp) | |
3925 | { | |
3926 | memset(opp, 0, sizeof *opp); | |
3927 | ||
4e022ec0 | 3928 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 3929 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3930 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3931 | ||
3932 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3933 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3934 | ||
3935 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3936 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3937 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3938 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3939 | } | |
3940 | ||
3941 | static void | |
3942 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3943 | struct ofp11_port *op) | |
3944 | { | |
3945 | memset(op, 0, sizeof *op); | |
3946 | ||
3947 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 3948 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3949 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3950 | ||
3951 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3952 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3953 | ||
3954 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3955 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3956 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3957 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3958 | ||
3959 | op->curr_speed = htonl(pp->curr_speed); | |
3960 | op->max_speed = htonl(pp->max_speed); | |
3961 | } | |
3962 | ||
8c3cc785 BP |
3963 | static void |
3964 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3965 | struct ofpbuf *b) | |
3966 | { | |
3967 | struct ofp14_port *op; | |
3968 | struct ofp14_port_desc_prop_ethernet *eth; | |
3969 | ||
3970 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3971 | ||
3972 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3973 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3974 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 3975 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
3976 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
3977 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3978 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3979 | ||
303721ee | 3980 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
8c3cc785 BP |
3981 | eth->curr = netdev_port_features_to_ofp11(pp->curr); |
3982 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3983 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3984 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3985 | eth->curr_speed = htonl(pp->curr_speed); | |
3986 | eth->max_speed = htonl(pp->max_speed); | |
3987 | } | |
3988 | ||
9e1fd49b | 3989 | static void |
2e3fa633 SH |
3990 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3991 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3992 | { |
2e3fa633 SH |
3993 | switch (ofp_version) { |
3994 | case OFP10_VERSION: { | |
6b0f20ac BP |
3995 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3996 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
3997 | break; |
3998 | } | |
3999 | ||
4000 | case OFP11_VERSION: | |
2e1ae200 JR |
4001 | case OFP12_VERSION: |
4002 | case OFP13_VERSION: { | |
6b0f20ac BP |
4003 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4004 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4005 | break; |
4006 | } | |
4007 | ||
c37c0382 | 4008 | case OFP14_VERSION: |
42dccab5 | 4009 | case OFP15_VERSION: |
8c3cc785 | 4010 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4011 | break; |
4012 | ||
2e3fa633 | 4013 | default: |
428b2edd | 4014 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4015 | } |
4016 | } | |
2be393ed | 4017 | |
70ae4f93 BP |
4018 | enum ofperr |
4019 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4020 | ofp_port_t *port) | |
4021 | { | |
4022 | struct ofpbuf b; | |
4023 | enum ofpraw raw; | |
4024 | ||
4025 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
4026 | raw = ofpraw_pull_assert(&b); | |
4027 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
4028 | *port = OFPP_ANY; | |
4029 | return 0; | |
4030 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4031 | ovs_be32 *ofp11_port; | |
4032 | ||
4033 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4034 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4035 | } else { | |
4036 | OVS_NOT_REACHED(); | |
4037 | } | |
4038 | } | |
4039 | ||
4040 | struct ofpbuf * | |
4041 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4042 | ofp_port_t port) | |
4043 | { | |
4044 | struct ofpbuf *request; | |
70ae4f93 BP |
4045 | |
4046 | switch (ofp_version) { | |
4047 | case OFP10_VERSION: | |
4048 | case OFP11_VERSION: | |
4049 | case OFP12_VERSION: | |
4050 | case OFP13_VERSION: | |
4051 | case OFP14_VERSION: | |
4052 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4053 | ofp_version, 0); | |
4054 | break; | |
7448d548 MT |
4055 | case OFP15_VERSION:{ |
4056 | struct ofp15_port_desc_request *req; | |
70ae4f93 BP |
4057 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4058 | ofp_version, 0); | |
7448d548 MT |
4059 | req = ofpbuf_put_zeros(request, sizeof *req); |
4060 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4061 | break; |
7448d548 | 4062 | } |
70ae4f93 BP |
4063 | default: |
4064 | OVS_NOT_REACHED(); | |
4065 | } | |
4066 | ||
4067 | return request; | |
4068 | } | |
4069 | ||
2be393ed | 4070 | void |
e28ac5cf | 4071 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4072 | struct ovs_list *replies) |
2be393ed | 4073 | { |
6b0f20ac | 4074 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 4075 | size_t start_ofs = reply->size; |
c37c0382 | 4076 | |
6b0f20ac BP |
4077 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4078 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4079 | } |
9e1fd49b | 4080 | \f |
ad99e2ed BP |
4081 | /* ofputil_switch_config */ |
4082 | ||
4083 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4084 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4085 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4086 | static bool | |
4087 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4088 | struct ofputil_switch_config *config) | |
4089 | { | |
4090 | const struct ofp_switch_config *osc; | |
4091 | struct ofpbuf b; | |
4092 | ||
4093 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4094 | ofpraw_pull_assert(&b); | |
4095 | osc = ofpbuf_pull(&b, sizeof *osc); | |
4096 | ||
4097 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; | |
4098 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4099 | ||
4100 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4101 | if (oh->version < OFP13_VERSION) { | |
4102 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4103 | valid_mask |= ttl_bit; | |
4104 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4105 | } else { | |
4106 | config->invalid_ttl_to_controller = -1; | |
4107 | } | |
4108 | ||
4109 | return !(osc->flags & ~valid_mask); | |
4110 | } | |
4111 | ||
4112 | void | |
4113 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4114 | struct ofputil_switch_config *config) | |
4115 | { | |
4116 | ofputil_decode_switch_config(oh, config); | |
4117 | } | |
4118 | ||
4119 | enum ofperr | |
4120 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4121 | struct ofputil_switch_config *config) | |
4122 | { | |
4123 | return (ofputil_decode_switch_config(oh, config) | |
4124 | ? 0 | |
4125 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4126 | } | |
4127 | ||
4128 | static struct ofpbuf * | |
4129 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4130 | struct ofpbuf *b) | |
4131 | { | |
4132 | const struct ofp_header *oh = b->data; | |
4133 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4134 | osc->flags = htons(config->frag); | |
4135 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4136 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4137 | } | |
4138 | osc->miss_send_len = htons(config->miss_send_len); | |
4139 | return b; | |
4140 | } | |
4141 | ||
4142 | struct ofpbuf * | |
4143 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4144 | const struct ofputil_switch_config *config) | |
4145 | { | |
4146 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4147 | request, 0); | |
4148 | return ofputil_put_switch_config(config, b); | |
4149 | } | |
4150 | ||
4151 | struct ofpbuf * | |
4152 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4153 | enum ofp_version version) | |
4154 | { | |
4155 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4156 | return ofputil_put_switch_config(config, b); | |
4157 | } | |
4158 | \f | |
9e1fd49b BP |
4159 | /* ofputil_switch_features */ |
4160 | ||
4161 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4162 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4163 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4164 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4165 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4166 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4167 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4168 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4169 | ||
60202987 SH |
4170 | static uint32_t |
4171 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4172 | { | |
0746a84f | 4173 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4174 | switch (ofp_version) { |
4175 | case OFP10_VERSION: | |
4176 | case OFP11_VERSION: | |
4177 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4178 | case OFP12_VERSION: | |
2e1ae200 | 4179 | case OFP13_VERSION: |
c37c0382 | 4180 | case OFP14_VERSION: |
42dccab5 | 4181 | case OFP15_VERSION: |
18cc69d9 | 4182 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4183 | default: |
4184 | /* Caller needs to check osf->header.version itself */ | |
4185 | return 0; | |
4186 | } | |
4187 | } | |
4188 | ||
9e1fd49b BP |
4189 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4190 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4191 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4192 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4193 | * OFPERR_* value. */ |
4194 | enum ofperr | |
982697a4 | 4195 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4196 | struct ofputil_switch_features *features, |
4197 | struct ofpbuf *b) | |
4198 | { | |
982697a4 BP |
4199 | const struct ofp_switch_features *osf; |
4200 | enum ofpraw raw; | |
4201 | ||
4202 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4203 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4204 | |
982697a4 | 4205 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4206 | features->datapath_id = ntohll(osf->datapath_id); |
4207 | features->n_buffers = ntohl(osf->n_buffers); | |
4208 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4209 | features->auxiliary_id = 0; |
9e1fd49b | 4210 | |
60202987 SH |
4211 | features->capabilities = ntohl(osf->capabilities) & |
4212 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4213 | |
982697a4 | 4214 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4215 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4216 | features->capabilities |= OFPUTIL_C_STP; | |
4217 | } | |
08d1e234 BP |
4218 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4219 | OFP10_VERSION); | |
2e1ae200 JR |
4220 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4221 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4222 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4223 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4224 | } | |
08d1e234 | 4225 | features->ofpacts = 0; |
2e1ae200 JR |
4226 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4227 | features->auxiliary_id = osf->auxiliary_id; | |
4228 | } | |
9e1fd49b BP |
4229 | } else { |
4230 | return OFPERR_OFPBRC_BAD_VERSION; | |
4231 | } | |
4232 | ||
4233 | return 0; | |
4234 | } | |
4235 | ||
fca6d553 BP |
4236 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4237 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4238 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4239 | * | |
4240 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4241 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4242 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4243 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4244 | * message. | |
4245 | * | |
4246 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4247 | * stats request to get the ports. */ | |
347b7ac4 | 4248 | bool |
fca6d553 | 4249 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4250 | { |
6fd6ed71 | 4251 | struct ofp_header *oh = b->data; |
13e1aff8 | 4252 | size_t phy_port_size; |
347b7ac4 | 4253 | |
fca6d553 | 4254 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4255 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4256 | return false; |
13e1aff8 BP |
4257 | } |
4258 | ||
4259 | phy_port_size = (oh->version == OFP10_VERSION | |
4260 | ? sizeof(struct ofp10_phy_port) | |
4261 | : sizeof(struct ofp11_port)); | |
4262 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4263 | /* There's room for additional ports in the feature reply. | |
4264 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4265 | return true; |
4266 | } | |
13e1aff8 BP |
4267 | |
4268 | /* The feature reply has no room for more ports. Probably the list is | |
4269 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4270 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4271 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4272 | ofpmsg_update_length(b); |
4273 | return false; | |
347b7ac4 JP |
4274 | } |
4275 | ||
9e1fd49b BP |
4276 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4277 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4278 | * information to the buffer with subsequent calls to | |
4279 | * ofputil_put_switch_features_port(). */ | |
4280 | struct ofpbuf * | |
4281 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4282 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4283 | { | |
4284 | struct ofp_switch_features *osf; | |
4285 | struct ofpbuf *b; | |
2e3fa633 SH |
4286 | enum ofp_version version; |
4287 | enum ofpraw raw; | |
982697a4 BP |
4288 | |
4289 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4290 | switch (version) { |
4291 | case OFP10_VERSION: | |
4292 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4293 | break; | |
4294 | case OFP11_VERSION: | |
4295 | case OFP12_VERSION: | |
4296 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4297 | break; | |
2e1ae200 | 4298 | case OFP13_VERSION: |
c37c0382 | 4299 | case OFP14_VERSION: |
42dccab5 | 4300 | case OFP15_VERSION: |
2e1ae200 JR |
4301 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4302 | break; | |
2e3fa633 | 4303 | default: |
428b2edd | 4304 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4305 | } |
4306 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4307 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4308 | osf->datapath_id = htonll(features->datapath_id); |
4309 | osf->n_buffers = htonl(features->n_buffers); | |
4310 | osf->n_tables = features->n_tables; | |
4311 | ||
4312 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4313 | osf->capabilities = htonl(features->capabilities & |
4314 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4315 | switch (version) { |
4316 | case OFP10_VERSION: | |
9e1fd49b BP |
4317 | if (features->capabilities & OFPUTIL_C_STP) { |
4318 | osf->capabilities |= htonl(OFPC10_STP); | |
4319 | } | |
08d1e234 BP |
4320 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4321 | OFP10_VERSION); | |
2e3fa633 | 4322 | break; |
2e1ae200 | 4323 | case OFP13_VERSION: |
c37c0382 | 4324 | case OFP14_VERSION: |
42dccab5 | 4325 | case OFP15_VERSION: |
2e1ae200 JR |
4326 | osf->auxiliary_id = features->auxiliary_id; |
4327 | /* fall through */ | |
2e3fa633 SH |
4328 | case OFP11_VERSION: |
4329 | case OFP12_VERSION: | |
9e1fd49b BP |
4330 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4331 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4332 | } | |
2e3fa633 SH |
4333 | break; |
4334 | default: | |
428b2edd | 4335 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4336 | } |
4337 | ||
4338 | return b; | |
4339 | } | |
4340 | ||
4341 | /* Encodes 'pp' into the format required by the switch_features message already | |
4342 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4343 | * and appends the encoded version to 'b'. */ | |
4344 | void | |
4345 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4346 | struct ofpbuf *b) | |
4347 | { | |
6fd6ed71 | 4348 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4349 | |
e0c91c0c | 4350 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4351 | /* Try adding a port description to the message, but drop it again if |
4352 | * the buffer overflows. (This possibility for overflow is why | |
4353 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4354 | size_t start_ofs = b->size; |
e0c91c0c | 4355 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4356 | if (b->size > UINT16_MAX) { |
4357 | b->size = start_ofs; | |
6b0f20ac | 4358 | } |
e0c91c0c | 4359 | } |
9e1fd49b BP |
4360 | } |
4361 | \f | |
4362 | /* ofputil_port_status */ | |
4363 | ||
4364 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4365 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4366 | enum ofperr | |
982697a4 | 4367 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4368 | struct ofputil_port_status *ps) |
4369 | { | |
982697a4 | 4370 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4371 | struct ofpbuf b; |
4372 | int retval; | |
4373 | ||
982697a4 BP |
4374 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4375 | ofpraw_pull_assert(&b); | |
4376 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4377 | ||
9e1fd49b BP |
4378 | if (ops->reason != OFPPR_ADD && |
4379 | ops->reason != OFPPR_DELETE && | |
4380 | ops->reason != OFPPR_MODIFY) { | |
4381 | return OFPERR_NXBRC_BAD_REASON; | |
4382 | } | |
4383 | ps->reason = ops->reason; | |
4384 | ||
982697a4 | 4385 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4386 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4387 | return retval; |
4388 | } | |
4389 | ||
4390 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4391 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4392 | * a buffer owned by the caller. */ | |
4393 | struct ofpbuf * | |
4394 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4395 | enum ofputil_protocol protocol) | |
4396 | { | |
4397 | struct ofp_port_status *ops; | |
4398 | struct ofpbuf *b; | |
2e3fa633 SH |
4399 | enum ofp_version version; |
4400 | enum ofpraw raw; | |
982697a4 BP |
4401 | |
4402 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4403 | switch (version) { |
4404 | case OFP10_VERSION: | |
4405 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4406 | break; | |
4407 | ||
4408 | case OFP11_VERSION: | |
4409 | case OFP12_VERSION: | |
2e1ae200 | 4410 | case OFP13_VERSION: |
2e3fa633 SH |
4411 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4412 | break; | |
4413 | ||
8c3cc785 | 4414 | case OFP14_VERSION: |
42dccab5 | 4415 | case OFP15_VERSION: |
8c3cc785 BP |
4416 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4417 | break; | |
4418 | ||
2e3fa633 | 4419 | default: |
428b2edd | 4420 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4421 | } |
4422 | ||
4423 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4424 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4425 | ops->reason = ps->reason; |
982697a4 BP |
4426 | ofputil_put_phy_port(version, &ps->desc, b); |
4427 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4428 | return b; |
4429 | } | |
918f2b82 | 4430 | |
9e1fd49b BP |
4431 | /* ofputil_port_mod */ |
4432 | ||
18cc69d9 BP |
4433 | static enum ofperr |
4434 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4435 | struct ofputil_port_mod *pm) | |
4436 | { | |
b611d3ac BP |
4437 | ovs_be32 advertise; |
4438 | enum ofperr error; | |
18cc69d9 | 4439 | |
b611d3ac BP |
4440 | error = ofpprop_parse_be32(property, &advertise); |
4441 | if (!error) { | |
4442 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 4443 | } |
b611d3ac | 4444 | return error; |
18cc69d9 BP |
4445 | } |
4446 | ||
9e1fd49b BP |
4447 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4448 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4449 | enum ofperr | |
4450 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4451 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4452 | { |
982697a4 BP |
4453 | enum ofpraw raw; |
4454 | struct ofpbuf b; | |
9e1fd49b | 4455 | |
982697a4 BP |
4456 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4457 | raw = ofpraw_pull_assert(&b); | |
4458 | ||
4459 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
6fd6ed71 | 4460 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4461 | |
4e022ec0 | 4462 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4463 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4464 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4465 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4466 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4467 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4468 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4469 | enum ofperr error; |
4470 | ||
9e1fd49b BP |
4471 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4472 | if (error) { | |
4473 | return error; | |
4474 | } | |
4475 | ||
74ff3298 | 4476 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4477 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4478 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4479 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4480 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4481 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4482 | enum ofperr error; | |
4483 | ||
4484 | memset(pm, 0, sizeof *pm); | |
4485 | ||
4486 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4487 | if (error) { | |
4488 | return error; | |
4489 | } | |
4490 | ||
74ff3298 | 4491 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4492 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4493 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4494 | ||
6fd6ed71 | 4495 | while (b.size > 0) { |
18cc69d9 BP |
4496 | struct ofpbuf property; |
4497 | enum ofperr error; | |
34a543e3 | 4498 | uint64_t type; |
18cc69d9 | 4499 | |
c5562271 | 4500 | error = ofpprop_pull(&b, &property, &type); |
18cc69d9 BP |
4501 | if (error) { |
4502 | return error; | |
4503 | } | |
4504 | ||
4505 | switch (type) { | |
4506 | case OFPPMPT14_ETHERNET: | |
4507 | error = parse_port_mod_ethernet_property(&property, pm); | |
4508 | break; | |
4509 | ||
4510 | default: | |
34a543e3 | 4511 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); |
18cc69d9 BP |
4512 | break; |
4513 | } | |
4514 | ||
4515 | if (error) { | |
4516 | return error; | |
4517 | } | |
4518 | } | |
9e1fd49b | 4519 | } else { |
982697a4 | 4520 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4521 | } |
4522 | ||
4523 | pm->config &= pm->mask; | |
4524 | return 0; | |
4525 | } | |
4526 | ||
4527 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4528 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4529 | * owned by the caller. */ | |
4530 | struct ofpbuf * | |
4531 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4532 | enum ofputil_protocol protocol) | |
4533 | { | |
2e3fa633 | 4534 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4535 | struct ofpbuf *b; |
4536 | ||
2e3fa633 SH |
4537 | switch (ofp_version) { |
4538 | case OFP10_VERSION: { | |
9e1fd49b BP |
4539 | struct ofp10_port_mod *opm; |
4540 | ||
982697a4 BP |
4541 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4542 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4543 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 4544 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4545 | opm->config = htonl(pm->config & OFPPC10_ALL); |
4546 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4547 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4548 | break; |
4549 | } | |
4550 | ||
5fe7c919 | 4551 | case OFP11_VERSION: |
2e1ae200 JR |
4552 | case OFP12_VERSION: |
4553 | case OFP13_VERSION: { | |
9e1fd49b BP |
4554 | struct ofp11_port_mod *opm; |
4555 | ||
982697a4 BP |
4556 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4557 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4558 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 4559 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4560 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4561 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4562 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4563 | break; |
4564 | } | |
42dccab5 BP |
4565 | case OFP14_VERSION: |
4566 | case OFP15_VERSION: { | |
18cc69d9 BP |
4567 | struct ofp14_port_mod *opm; |
4568 | ||
b611d3ac | 4569 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
4570 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
4571 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 4572 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
4573 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4574 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4575 | ||
4576 | if (pm->advertise) { | |
b611d3ac BP |
4577 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
4578 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 4579 | } |
c37c0382 | 4580 | break; |
18cc69d9 | 4581 | } |
918f2b82 | 4582 | default: |
428b2edd | 4583 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4584 | } |
4585 | ||
4586 | return b; | |
4587 | } | |
72b25867 BP |
4588 | \f |
4589 | /* Table features. */ | |
918f2b82 | 4590 | |
5deff5aa | 4591 | static enum ofperr |
9a4eddbb | 4592 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 4593 | uint64_t *typep) |
5deff5aa | 4594 | { |
9a4eddbb | 4595 | enum ofperr error; |
5deff5aa | 4596 | |
c5562271 | 4597 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 4598 | if (payload && !error) { |
b611d3ac | 4599 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 4600 | } |
9a4eddbb | 4601 | return error; |
5deff5aa AW |
4602 | } |
4603 | ||
4604 | static enum ofperr | |
08d1e234 BP |
4605 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4606 | uint64_t *ofpacts) | |
5deff5aa | 4607 | { |
08d1e234 | 4608 | uint32_t types = 0; |
5deff5aa | 4609 | |
6fd6ed71 | 4610 | while (payload->size > 0) { |
08d1e234 | 4611 | enum ofperr error; |
34a543e3 | 4612 | uint64_t type; |
08d1e234 | 4613 | |
34a543e3 | 4614 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
4615 | if (error) { |
4616 | return error; | |
4617 | } | |
08d1e234 BP |
4618 | if (type < CHAR_BIT * sizeof types) { |
4619 | types |= 1u << type; | |
5deff5aa AW |
4620 | } |
4621 | } | |
08d1e234 BP |
4622 | |
4623 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4624 | return 0; |
4625 | } | |
4626 | ||
4627 | static enum ofperr | |
4628 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4629 | { | |
4630 | *insts = 0; | |
6fd6ed71 | 4631 | while (payload->size > 0) { |
5deff5aa AW |
4632 | enum ovs_instruction_type inst; |
4633 | enum ofperr error; | |
34a543e3 | 4634 | uint64_t ofpit; |
5deff5aa | 4635 | |
72b25867 BP |
4636 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4637 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4638 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4639 | * and do not mention any padding before the first instruction ID. | |
4640 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4641 | * aligned on an odd 4-byte boundary.) | |
4642 | * | |
4643 | * Anyway, we just assume they're all glommed together on byte | |
4644 | * boundaries. */ | |
34a543e3 | 4645 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
4646 | if (error) { |
4647 | return error; | |
4648 | } | |
4649 | ||
4650 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4651 | if (!error) { | |
4652 | *insts |= 1u << inst; | |
4653 | } else if (!loose) { | |
4654 | return error; | |
4655 | } | |
4656 | } | |
4657 | return 0; | |
4658 | } | |
4659 | ||
4660 | static enum ofperr | |
4661 | parse_table_features_next_table(struct ofpbuf *payload, | |
4662 | unsigned long int *next_tables) | |
4663 | { | |
4664 | size_t i; | |
4665 | ||
4666 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
4667 | for (i = 0; i < payload->size; i++) { |
4668 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 4669 | if (id >= 255) { |
9a4eddbb | 4670 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4671 | } |
4672 | bitmap_set1(next_tables, id); | |
4673 | } | |
4674 | return 0; | |
4675 | } | |
4676 | ||
5deff5aa AW |
4677 | static enum ofperr |
4678 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4679 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4680 | { |
abadfcb0 BP |
4681 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4682 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4683 | |
6fd6ed71 | 4684 | while (payload->size > 0) { |
5deff5aa AW |
4685 | const struct mf_field *field; |
4686 | enum ofperr error; | |
4687 | bool hasmask; | |
4688 | ||
178742f9 | 4689 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4690 | if (!error) { |
abadfcb0 | 4691 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4692 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4693 | return error; | |
4694 | } | |
4695 | } | |
4696 | if (exactp) { | |
4697 | *exactp = exact; | |
abadfcb0 | 4698 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4699 | return OFPERR_OFPBMC_BAD_MASK; |
4700 | } | |
4701 | if (maskedp) { | |
4702 | *maskedp = masked; | |
abadfcb0 | 4703 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4704 | return OFPERR_OFPBMC_BAD_MASK; |
4705 | } | |
4706 | return 0; | |
4707 | } | |
4708 | ||
4709 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4710 | * ofputil_table_features in 'tf'. | |
4711 | * | |
4712 | * If 'loose' is true, this function ignores properties and values that it does | |
4713 | * not understand, as a controller would want to do when interpreting | |
4714 | * capabilities provided by a switch. If 'loose' is false, this function | |
4715 | * treats unknown properties and values as an error, as a switch would want to | |
4716 | * do when interpreting a configuration request made by a controller. | |
4717 | * | |
4718 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4719 | * this function multiple times for a single 'msg' iterates through the tables | |
4720 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4721 | * and not modify them between calls. | |
4722 | * | |
4723 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4724 | * a positive "enum ofperr" value. */ | |
4725 | int | |
4726 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4727 | struct ofputil_table_features *tf, bool loose) | |
4728 | { | |
08d1e234 | 4729 | const struct ofp_header *oh; |
5deff5aa | 4730 | struct ofp13_table_features *otf; |
ae665de5 | 4731 | struct ofpbuf properties; |
5deff5aa AW |
4732 | unsigned int len; |
4733 | ||
3c1bb396 BP |
4734 | memset(tf, 0, sizeof *tf); |
4735 | ||
6fd6ed71 | 4736 | if (!msg->header) { |
5deff5aa AW |
4737 | ofpraw_pull_assert(msg); |
4738 | } | |
6fd6ed71 | 4739 | oh = msg->header; |
5deff5aa | 4740 | |
6fd6ed71 | 4741 | if (!msg->size) { |
5deff5aa AW |
4742 | return EOF; |
4743 | } | |
4744 | ||
6fd6ed71 | 4745 | if (msg->size < sizeof *otf) { |
9a4eddbb | 4746 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4747 | } |
4748 | ||
6fd6ed71 | 4749 | otf = msg->data; |
5deff5aa | 4750 | len = ntohs(otf->length); |
6fd6ed71 | 4751 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 4752 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4753 | } |
ae665de5 BP |
4754 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4755 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4756 | |
4757 | tf->table_id = otf->table_id; | |
4758 | if (tf->table_id == OFPTT_ALL) { | |
4759 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4760 | } | |
4761 | ||
4762 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4763 | tf->metadata_match = otf->metadata_match; | |
4764 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
4765 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
4766 | if (oh->version >= OFP14_VERSION) { | |
4767 | uint32_t caps = ntohl(otf->capabilities); | |
4768 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
4769 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
4770 | } else { | |
4771 | tf->supports_eviction = -1; | |
4772 | tf->supports_vacancy_events = -1; | |
4773 | } | |
5deff5aa AW |
4774 | tf->max_entries = ntohl(otf->max_entries); |
4775 | ||
6fd6ed71 | 4776 | while (properties.size > 0) { |
5deff5aa AW |
4777 | struct ofpbuf payload; |
4778 | enum ofperr error; | |
34a543e3 | 4779 | uint64_t type; |
5deff5aa | 4780 | |
ae665de5 | 4781 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4782 | if (error) { |
4783 | return error; | |
4784 | } | |
4785 | ||
4786 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4787 | case OFPTFPT13_INSTRUCTIONS: | |
4788 | error = parse_instruction_ids(&payload, loose, | |
4789 | &tf->nonmiss.instructions); | |
4790 | break; | |
4791 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4792 | error = parse_instruction_ids(&payload, loose, | |
4793 | &tf->miss.instructions); | |
4794 | break; | |
4795 | ||
4796 | case OFPTFPT13_NEXT_TABLES: | |
4797 | error = parse_table_features_next_table(&payload, | |
4798 | tf->nonmiss.next); | |
4799 | break; | |
4800 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4801 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4802 | break; | |
4803 | ||
4804 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4805 | error = parse_action_bitmap(&payload, oh->version, |
4806 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4807 | break; |
4808 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4809 | error = parse_action_bitmap(&payload, oh->version, |
4810 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4811 | break; |
4812 | ||
4813 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4814 | error = parse_action_bitmap(&payload, oh->version, |
4815 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4816 | break; |
4817 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4818 | error = parse_action_bitmap(&payload, oh->version, |
4819 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4820 | break; |
4821 | ||
4822 | case OFPTFPT13_MATCH: | |
4823 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4824 | break; | |
4825 | case OFPTFPT13_WILDCARDS: | |
4826 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4827 | break; | |
4828 | ||
4829 | case OFPTFPT13_WRITE_SETFIELD: | |
4830 | error = parse_oxms(&payload, loose, | |
4831 | &tf->nonmiss.write.set_fields, NULL); | |
4832 | break; | |
4833 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4834 | error = parse_oxms(&payload, loose, | |
4835 | &tf->miss.write.set_fields, NULL); | |
4836 | break; | |
4837 | case OFPTFPT13_APPLY_SETFIELD: | |
4838 | error = parse_oxms(&payload, loose, | |
4839 | &tf->nonmiss.apply.set_fields, NULL); | |
4840 | break; | |
4841 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4842 | error = parse_oxms(&payload, loose, | |
4843 | &tf->miss.apply.set_fields, NULL); | |
4844 | break; | |
4845 | ||
4846 | case OFPTFPT13_EXPERIMENTER: | |
4847 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 4848 | default: |
34a543e3 | 4849 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
4850 | break; |
4851 | } | |
4852 | if (error) { | |
4853 | return error; | |
4854 | } | |
4855 | } | |
4856 | ||
4857 | /* Fix inconsistencies: | |
4858 | * | |
e7227821 BP |
4859 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4860 | * fields are matchable. | |
5deff5aa AW |
4861 | * |
4862 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4863 | * that is arbitrarily maskable can be wildcarded entirely. |
4864 | * | |
4865 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4866 | * must be matchable for it to be meaningfully wildcarded. */ | |
4867 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4868 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4869 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4870 | |
4871 | return 0; | |
4872 | } | |
4873 | ||
4874 | /* Encodes and returns a request to obtain the table features of a switch. | |
4875 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4876 | struct ofpbuf * | |
4877 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4878 | { | |
4879 | struct ofpbuf *request = NULL; | |
4880 | ||
4881 | switch (ofp_version) { | |
4882 | case OFP10_VERSION: | |
4883 | case OFP11_VERSION: | |
4884 | case OFP12_VERSION: | |
4885 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4886 | "(\'-O OpenFlow13\')"); | |
4887 | case OFP13_VERSION: | |
4888 | case OFP14_VERSION: | |
42dccab5 | 4889 | case OFP15_VERSION: |
5deff5aa AW |
4890 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4891 | ofp_version, 0); | |
4892 | break; | |
4893 | default: | |
4894 | OVS_NOT_REACHED(); | |
4895 | } | |
4896 | ||
4897 | return request; | |
4898 | } | |
4899 | ||
3c4e10fb BP |
4900 | static void |
4901 | put_fields_property(struct ofpbuf *reply, | |
4902 | const struct mf_bitmap *fields, | |
4903 | const struct mf_bitmap *masks, | |
4904 | enum ofp13_table_feature_prop_type property, | |
4905 | enum ofp_version version) | |
4906 | { | |
4907 | size_t start_ofs; | |
4908 | int field; | |
4909 | ||
c5562271 | 4910 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 4911 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
4912 | nx_put_header(reply, field, version, |
4913 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 4914 | } |
c5562271 | 4915 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
4916 | } |
4917 | ||
4918 | static void | |
4919 | put_table_action_features(struct ofpbuf *reply, | |
4920 | const struct ofputil_table_action_features *taf, | |
4921 | enum ofp13_table_feature_prop_type actions_type, | |
4922 | enum ofp13_table_feature_prop_type set_fields_type, | |
4923 | int miss_offset, enum ofp_version version) | |
4924 | { | |
c5562271 BP |
4925 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
4926 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4927 | version))); | |
3c4e10fb BP |
4928 | put_fields_property(reply, &taf->set_fields, NULL, |
4929 | set_fields_type + miss_offset, version); | |
4930 | } | |
4931 | ||
4932 | static void | |
4933 | put_table_instruction_features( | |
4934 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4935 | int miss_offset, enum ofp_version version) | |
4936 | { | |
4937 | size_t start_ofs; | |
4938 | uint8_t table_id; | |
4939 | ||
c5562271 BP |
4940 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
4941 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4942 | version))); | |
3c4e10fb | 4943 | |
c5562271 | 4944 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
4945 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
4946 | ofpbuf_put(reply, &table_id, 1); | |
4947 | } | |
c5562271 | 4948 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
4949 | |
4950 | put_table_action_features(reply, &tif->write, | |
4951 | OFPTFPT13_WRITE_ACTIONS, | |
4952 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4953 | put_table_action_features(reply, &tif->apply, | |
4954 | OFPTFPT13_APPLY_ACTIONS, | |
4955 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4956 | } | |
4957 | ||
4958 | void | |
4959 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 4960 | struct ovs_list *replies) |
3c4e10fb BP |
4961 | { |
4962 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4963 | enum ofp_version version = ofpmp_version(replies); | |
6fd6ed71 | 4964 | size_t start_ofs = reply->size; |
3c4e10fb BP |
4965 | struct ofp13_table_features *otf; |
4966 | ||
4967 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4968 | otf->table_id = tf->table_id; | |
4969 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4970 | otf->metadata_match = tf->metadata_match; | |
4971 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
4972 | if (version >= OFP14_VERSION) { |
4973 | if (tf->supports_eviction) { | |
4974 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
4975 | } | |
4976 | if (tf->supports_vacancy_events) { | |
4977 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
4978 | } | |
4979 | } | |
3c4e10fb BP |
4980 | otf->max_entries = htonl(tf->max_entries); |
4981 | ||
4982 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4983 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4984 | ||
4985 | put_fields_property(reply, &tf->match, &tf->mask, | |
4986 | OFPTFPT13_MATCH, version); | |
4987 | put_fields_property(reply, &tf->wildcard, NULL, | |
4988 | OFPTFPT13_WILDCARDS, version); | |
4989 | ||
4990 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 4991 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
4992 | ofpmp_postappend(replies, start_ofs); |
4993 | } | |
4994 | ||
bab86012 SJ |
4995 | static enum ofperr |
4996 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
4997 | struct ofputil_table_desc *td) | |
4998 | { | |
4999 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5000 | ||
5001 | if (property->size != sizeof *otv) { | |
5002 | return OFPERR_OFPBPC_BAD_LEN; | |
5003 | } | |
5004 | ||
5005 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5006 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5007 | td->table_vacancy.vacancy = otv->vacancy; | |
5008 | return 0; | |
5009 | } | |
5010 | ||
03c72922 BP |
5011 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5012 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5013 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5014 | * value. */ | |
5015 | int | |
5016 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5017 | struct ofputil_table_desc *td, | |
5018 | enum ofp_version version) | |
5019 | { | |
5020 | struct ofp14_table_desc *otd; | |
5021 | struct ofpbuf properties; | |
5022 | size_t length; | |
5023 | ||
5024 | memset(td, 0, sizeof *td); | |
5025 | ||
5026 | if (!msg->header) { | |
5027 | ofpraw_pull_assert(msg); | |
5028 | } | |
5029 | ||
5030 | if (!msg->size) { | |
5031 | return EOF; | |
5032 | } | |
5033 | ||
5034 | otd = ofpbuf_try_pull(msg, sizeof *otd); | |
5035 | if (!otd) { | |
5036 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5037 | "leftover bytes at end", msg->size); | |
5038 | return OFPERR_OFPBRC_BAD_LEN; | |
5039 | } | |
5040 | ||
5041 | td->table_id = otd->table_id; | |
5042 | length = ntohs(otd->length); | |
5043 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { | |
5044 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5045 | "length %"PRIuSIZE, length); | |
5046 | return OFPERR_OFPBRC_BAD_LEN; | |
5047 | } | |
5048 | length -= sizeof *otd; | |
5049 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, length), length); | |
5050 | ||
5051 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5052 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5053 | td->eviction_flags = UINT32_MAX; |
5054 | ||
5055 | while (properties.size > 0) { | |
5056 | struct ofpbuf payload; | |
5057 | enum ofperr error; | |
34a543e3 | 5058 | uint64_t type; |
03c72922 | 5059 | |
c5562271 | 5060 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5061 | if (error) { |
5062 | return error; | |
5063 | } | |
5064 | ||
5065 | switch (type) { | |
5066 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5067 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5068 | break; |
5069 | ||
bab86012 SJ |
5070 | case OFPTMPT14_VACANCY: |
5071 | error = parse_table_desc_vacancy_property(&payload, td); | |
5072 | break; | |
5073 | ||
03c72922 | 5074 | default: |
34a543e3 | 5075 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5076 | break; |
5077 | } | |
5078 | ||
5079 | if (error) { | |
5080 | return error; | |
5081 | } | |
5082 | } | |
5083 | ||
5084 | return 0; | |
5085 | } | |
5086 | ||
5087 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5088 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5089 | struct ofpbuf * | |
5090 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5091 | { | |
5092 | struct ofpbuf *request = NULL; | |
5093 | ||
5094 | if (ofp_version >= OFP14_VERSION) { | |
5095 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5096 | ofp_version, 0); | |
5097 | } else { | |
5098 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5099 | "(\'-O OpenFlow14\')"); | |
5100 | } | |
5101 | ||
5102 | return request; | |
5103 | } | |
5104 | ||
5105 | /* Function to append Table desc information in a reply list. */ | |
5106 | void | |
5107 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5108 | struct ovs_list *replies, | |
5109 | enum ofp_version version) | |
5110 | { | |
5111 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
5112 | size_t start_otd; | |
5113 | struct ofp14_table_desc *otd; | |
5114 | ||
5115 | start_otd = reply->size; | |
5116 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5117 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5118 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5119 | } |
bab86012 SJ |
5120 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5121 | struct ofp14_table_mod_prop_vacancy *otv; | |
5122 | ||
303721ee | 5123 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5124 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5125 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5126 | otv->vacancy = td->table_vacancy.vacancy; | |
5127 | } | |
03c72922 BP |
5128 | |
5129 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5130 | otd->length = htons(reply->size - start_otd); | |
5131 | otd->table_id = td->table_id; | |
5132 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5133 | td->eviction, td->vacancy, |
5134 | version); | |
03c72922 BP |
5135 | ofpmp_postappend(replies, start_otd); |
5136 | } | |
5137 | ||
de7d3c07 SJ |
5138 | /* This function parses Vacancy property, and decodes the |
5139 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5140 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5141 | * greater than vacancy_up and also when current vacancy has non-zero | |
5142 | * value. Returns 0 on success. */ | |
5143 | static enum ofperr | |
5144 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5145 | struct ofputil_table_mod *tm) | |
5146 | { | |
5147 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5148 | ||
5149 | if (property->size != sizeof *otv) { | |
5150 | return OFPERR_OFPBPC_BAD_LEN; | |
5151 | } | |
5152 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5153 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5154 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5155 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5156 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5157 | return OFPERR_OFPBPC_BAD_VALUE; |
5158 | } | |
5159 | if (tm->table_vacancy.vacancy_down > 100 || | |
5160 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5161 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5162 | "should not be greater than 100"); | |
de7d3c07 SJ |
5163 | return OFPERR_OFPBPC_BAD_VALUE; |
5164 | } | |
5165 | tm->table_vacancy.vacancy = otv->vacancy; | |
5166 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5167 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5168 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5169 | return OFPERR_OFPBPC_BAD_VALUE; |
5170 | } | |
5171 | return 0; | |
5172 | } | |
5173 | ||
5174 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5175 | * table configuration (a table mod, table stats, or table features message), | |
5176 | * returns the table vacancy configuration that it specifies. | |
5177 | * | |
5178 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5179 | * so for other 'version' this function always returns | |
5180 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5181 | static enum ofputil_table_vacancy | |
5182 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5183 | { | |
5184 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5185 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5186 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5187 | } | |
5188 | ||
3c1bb396 BP |
5189 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5190 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5191 | * returns the table eviction configuration that it specifies. |
5192 | * | |
5193 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5194 | * so for other 'version' values this function always returns | |
5195 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5196 | static enum ofputil_table_eviction | |
5197 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5198 | { | |
5199 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5200 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5201 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5202 | } | |
5203 | ||
5204 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5205 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5206 | * 'eviction' values. */ | |
5207 | static ovs_be32 | |
5208 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5209 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5210 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5211 | enum ofp_version version) |
5212 | { | |
de7d3c07 | 5213 | uint32_t config = 0; |
82c22d34 BP |
5214 | /* See the section "OFPTC_* Table Configuration" in DESIGN.md for more |
5215 | * information on the crazy evolution of this field. */ | |
5216 | switch (version) { | |
5217 | case OFP10_VERSION: | |
5218 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5219 | return htonl(0); | |
5220 | ||
5221 | case OFP11_VERSION: | |
5222 | case OFP12_VERSION: | |
5223 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5224 | switch (miss) { | |
5225 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5226 | /* Really this shouldn't be used for encoding (the caller should | |
5227 | * provide a specific value) but I can't imagine that defaulting to | |
5228 | * the fall-through case here will hurt. */ | |
5229 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5230 | default: | |
5231 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5232 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5233 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5234 | case OFPUTIL_TABLE_MISS_DROP: | |
5235 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5236 | } | |
5237 | OVS_NOT_REACHED(); | |
5238 | ||
5239 | case OFP13_VERSION: | |
5240 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5241 | * flags, so this is correct. */ | |
5242 | return htonl(0); | |
5243 | ||
5244 | case OFP14_VERSION: | |
5245 | case OFP15_VERSION: | |
de7d3c07 SJ |
5246 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5247 | * OFPTC14_VACANCY_EVENTS. */ | |
5248 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5249 | config |= OFPTC14_EVICTION; | |
5250 | } | |
5251 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5252 | config |= OFPTC14_VACANCY_EVENTS; | |
5253 | } | |
5254 | return htonl(config); | |
82c22d34 BP |
5255 | } |
5256 | ||
5257 | OVS_NOT_REACHED(); | |
5258 | } | |
5259 | ||
5260 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5261 | * table configuration (a table mod, table stats, or table features message), | |
5262 | * returns the table miss configuration that it specifies. | |
5263 | * | |
5264 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5265 | * other 'version' values this function always returns | |
5266 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5267 | static enum ofputil_table_miss |
82c22d34 | 5268 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5269 | { |
5270 | uint32_t config = ntohl(config_); | |
5271 | ||
82c22d34 | 5272 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5273 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5274 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5275 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5276 | ||
5277 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5278 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5279 | ||
5280 | case OFPTC11_TABLE_MISS_DROP: | |
5281 | return OFPUTIL_TABLE_MISS_DROP; | |
5282 | ||
5283 | default: | |
5284 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5285 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5286 | } | |
5287 | } else { | |
5288 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5289 | } | |
5290 | } | |
5291 | ||
918f2b82 AZ |
5292 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5293 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5294 | enum ofperr | |
5295 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5296 | struct ofputil_table_mod *pm) | |
5297 | { | |
5298 | enum ofpraw raw; | |
5299 | struct ofpbuf b; | |
5300 | ||
82c22d34 BP |
5301 | memset(pm, 0, sizeof *pm); |
5302 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5303 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5304 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5305 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 AZ |
5306 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5307 | raw = ofpraw_pull_assert(&b); | |
5308 | ||
5309 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
6fd6ed71 | 5310 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5311 | |
5312 | pm->table_id = otm->table_id; | |
82c22d34 | 5313 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5314 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5315 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5316 | ||
5317 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5318 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5319 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5320 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5321 | while (b.size > 0) { |
5322 | struct ofpbuf property; | |
5323 | enum ofperr error; | |
34a543e3 | 5324 | uint64_t type; |
82c22d34 | 5325 | |
c5562271 | 5326 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5327 | if (error) { |
5328 | return error; | |
5329 | } | |
5330 | ||
5331 | switch (type) { | |
5332 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5333 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5334 | break; |
5335 | ||
de7d3c07 SJ |
5336 | case OFPTMPT14_VACANCY: |
5337 | error = parse_table_mod_vacancy_property(&property, pm); | |
5338 | break; | |
5339 | ||
82c22d34 BP |
5340 | default: |
5341 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5342 | break; | |
5343 | } | |
5344 | ||
5345 | if (error) { | |
5346 | return error; | |
5347 | } | |
5348 | } | |
918f2b82 AZ |
5349 | } else { |
5350 | return OFPERR_OFPBRC_BAD_TYPE; | |
5351 | } | |
5352 | ||
5353 | return 0; | |
5354 | } | |
5355 | ||
82c22d34 BP |
5356 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5357 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5358 | * buffer owned by the caller. */ | |
918f2b82 | 5359 | struct ofpbuf * |
82c22d34 | 5360 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5361 | enum ofputil_protocol protocol) |
5362 | { | |
5363 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5364 | struct ofpbuf *b; | |
5365 | ||
5366 | switch (ofp_version) { | |
5367 | case OFP10_VERSION: { | |
5368 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5369 | "(\'-O OpenFlow11\')"); | |
5370 | break; | |
5371 | } | |
5372 | case OFP11_VERSION: | |
5373 | case OFP12_VERSION: | |
5374 | case OFP13_VERSION: { | |
5375 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5376 | |
918f2b82 AZ |
5377 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5378 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5379 | otm->table_id = tm->table_id; |
5380 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5381 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5382 | break; |
5383 | } | |
42dccab5 BP |
5384 | case OFP14_VERSION: |
5385 | case OFP15_VERSION: { | |
37ab26e8 BP |
5386 | struct ofp14_table_mod *otm; |
5387 | ||
5388 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5389 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5390 | otm->table_id = tm->table_id; |
5391 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5392 | tm->vacancy, ofp_version); |
82c22d34 BP |
5393 | |
5394 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5395 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 5396 | } |
de7d3c07 | 5397 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
5398 | struct ofp14_table_mod_prop_vacancy *otv; |
5399 | ||
5400 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
5401 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
5402 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5403 | } | |
c37c0382 | 5404 | break; |
37ab26e8 | 5405 | } |
2e3fa633 | 5406 | default: |
428b2edd | 5407 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5408 | } |
5409 | ||
5410 | return b; | |
5411 | } | |
2b07c8b1 | 5412 | \f |
6ea4776b JR |
5413 | /* ofputil_role_request */ |
5414 | ||
5415 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5416 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5417 | * OFPERR_* value. */ | |
5418 | enum ofperr | |
5419 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5420 | struct ofputil_role_request *rr) | |
5421 | { | |
6ea4776b JR |
5422 | struct ofpbuf b; |
5423 | enum ofpraw raw; | |
5424 | ||
6ea4776b JR |
5425 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5426 | raw = ofpraw_pull_assert(&b); | |
5427 | ||
f4f1ea7e BP |
5428 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5429 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5430 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5431 | |
f4f1ea7e BP |
5432 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5433 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5434 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5435 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5436 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5437 | } |
5438 | ||
f4f1ea7e | 5439 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5440 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5441 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5442 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5443 | rr->have_generation_id = false; |
5444 | rr->generation_id = 0; | |
5445 | } else { | |
5446 | rr->have_generation_id = true; | |
5447 | rr->generation_id = ntohll(orr->generation_id); | |
5448 | } | |
5449 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5450 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5451 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5452 | |
5453 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5454 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5455 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5456 | ||
5457 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5458 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5459 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5460 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5461 | } | |
6ea4776b | 5462 | |
f4f1ea7e BP |
5463 | rr->role = ntohl(nrr->role) + 1; |
5464 | rr->have_generation_id = false; | |
5465 | rr->generation_id = 0; | |
5466 | } else { | |
428b2edd | 5467 | OVS_NOT_REACHED(); |
6ea4776b JR |
5468 | } |
5469 | ||
6ea4776b JR |
5470 | return 0; |
5471 | } | |
5472 | ||
5473 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5474 | * buffer owned by the caller. */ | |
5475 | struct ofpbuf * | |
5476 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5477 | const struct ofputil_role_request *rr) |
6ea4776b | 5478 | { |
6ea4776b | 5479 | struct ofpbuf *buf; |
6ea4776b JR |
5480 | enum ofpraw raw; |
5481 | ||
f4f1ea7e | 5482 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5483 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5484 | struct ofp12_role_request *orr; |
6ea4776b | 5485 | |
f4f1ea7e BP |
5486 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5487 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5488 | |
147cc9d3 BP |
5489 | orr->role = htonl(rr->role); |
5490 | orr->generation_id = htonll(rr->have_generation_id | |
5491 | ? rr->generation_id | |
5492 | : UINT64_MAX); | |
f4f1ea7e BP |
5493 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5494 | struct nx_role_request *nrr; | |
5495 | ||
5496 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5497 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5498 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5499 | ||
5500 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5501 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5502 | nrr->role = htonl(rr->role - 1); | |
5503 | } else { | |
428b2edd | 5504 | OVS_NOT_REACHED(); |
6ea4776b | 5505 | } |
6ea4776b JR |
5506 | |
5507 | return buf; | |
5508 | } | |
5509 | \f | |
6751a4b4 BP |
5510 | /* Encodes "role status" message 'status' for sending in the given |
5511 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5512 | * otherwise a null pointer. */ | |
00467f73 AC |
5513 | struct ofpbuf * |
5514 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5515 | enum ofputil_protocol protocol) | |
5516 | { | |
00467f73 | 5517 | enum ofp_version version; |
00467f73 AC |
5518 | |
5519 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5520 | if (version >= OFP14_VERSION) { |
5521 | struct ofp14_role_status *rstatus; | |
5522 | struct ofpbuf *buf; | |
5523 | ||
5524 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5525 | 0); | |
5526 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5527 | rstatus->role = htonl(status->role); | |
5528 | rstatus->reason = status->reason; | |
5529 | rstatus->generation_id = htonll(status->generation_id); | |
5530 | ||
5531 | return buf; | |
5532 | } else { | |
5533 | return NULL; | |
5534 | } | |
00467f73 AC |
5535 | } |
5536 | ||
5537 | enum ofperr | |
5538 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5539 | struct ofputil_role_status *rs) | |
5540 | { | |
5541 | struct ofpbuf b; | |
5542 | enum ofpraw raw; | |
5543 | const struct ofp14_role_status *r; | |
5544 | ||
5545 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5546 | raw = ofpraw_pull_assert(&b); | |
5547 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5548 | ||
6fd6ed71 | 5549 | r = b.msg; |
00467f73 AC |
5550 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5551 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5552 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5553 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5554 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5555 | } | |
5556 | ||
5557 | rs->role = ntohl(r->role); | |
5558 | rs->generation_id = ntohll(r->generation_id); | |
5559 | rs->reason = r->reason; | |
5560 | ||
5561 | return 0; | |
5562 | } | |
5563 | ||
3c35db62 NR |
5564 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
5565 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
5566 | struct ofpbuf * | |
5567 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
5568 | enum ofputil_protocol protocol) | |
5569 | { | |
5570 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5571 | struct ofpbuf *inner; | |
5572 | ||
5573 | switch (rf->reason) { | |
5574 | case OFPRFR_GROUP_MOD: | |
5575 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
5576 | break; | |
5577 | ||
5578 | case OFPRFR_METER_MOD: | |
5579 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
5580 | break; | |
5581 | ||
d18cc1ee | 5582 | case OFPRFR_N_REASONS: |
3c35db62 NR |
5583 | default: |
5584 | OVS_NOT_REACHED(); | |
5585 | } | |
5586 | ||
5587 | struct ofp_header *inner_oh = inner->data; | |
5588 | inner_oh->xid = rf->xid; | |
5589 | inner_oh->length = htons(inner->size); | |
5590 | ||
5591 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
5592 | ofp_version, htonl(0), | |
5593 | inner->size); | |
5594 | ofpbuf_put(outer, inner->data, inner->size); | |
5595 | ofpbuf_delete(inner); | |
5596 | ||
5597 | return outer; | |
5598 | } | |
5599 | ||
5600 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
5601 | * form into '*rf' and returns 0, and the caller is later responsible for | |
5602 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
5603 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
5604 | enum ofperr | |
5605 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
5606 | struct ofputil_requestforward *rf) | |
5607 | { | |
5608 | struct ofpbuf b; | |
5609 | enum ofperr error; | |
5610 | ||
5611 | ofpbuf_use_const(&b, outer, ntohs(outer->length)); | |
5612 | ||
5613 | /* Skip past outer message. */ | |
5614 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
5615 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
5616 | ||
5617 | /* Validate inner message. */ | |
5618 | if (b.size < sizeof(struct ofp_header)) { | |
5619 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5620 | } | |
5621 | const struct ofp_header *inner = b.data; | |
5622 | unsigned int inner_len = ntohs(inner->length); | |
5623 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
5624 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5625 | } | |
5626 | if (inner->version != outer->version) { | |
5627 | return OFPERR_OFPBRC_BAD_VERSION; | |
5628 | } | |
5629 | ||
5630 | /* Parse inner message. */ | |
5631 | enum ofptype type; | |
5632 | error = ofptype_decode(&type, inner); | |
5633 | if (error) { | |
5634 | return error; | |
5635 | } | |
5636 | ||
5637 | rf->xid = inner->xid; | |
5638 | if (type == OFPTYPE_GROUP_MOD) { | |
5639 | rf->reason = OFPRFR_GROUP_MOD; | |
5640 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
5641 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
5642 | if (error) { | |
5643 | free(rf->group_mod); | |
5644 | return error; | |
5645 | } | |
5646 | } else if (type == OFPTYPE_METER_MOD) { | |
5647 | rf->reason = OFPRFR_METER_MOD; | |
5648 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
5649 | ofpbuf_init(&rf->bands, 64); | |
5650 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
5651 | if (error) { | |
5652 | free(rf->meter_mod); | |
5653 | ofpbuf_uninit(&rf->bands); | |
5654 | return error; | |
5655 | } | |
5656 | } else { | |
5657 | return OFPERR_OFPBFC_MSG_UNSUP; | |
5658 | } | |
5659 | ||
5660 | return 0; | |
5661 | } | |
5662 | ||
5663 | /* Frees the content of 'rf', which should have been initialized through a | |
5664 | * successful call to ofputil_decode_requestforward(). */ | |
5665 | void | |
5666 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
5667 | { | |
5668 | if (!rf) { | |
5669 | return; | |
5670 | } | |
5671 | ||
5672 | switch (rf->reason) { | |
5673 | case OFPRFR_GROUP_MOD: | |
5674 | ofputil_uninit_group_mod(rf->group_mod); | |
5675 | free(rf->group_mod); | |
5676 | break; | |
5677 | ||
5678 | case OFPRFR_METER_MOD: | |
5679 | ofpbuf_uninit(&rf->bands); | |
5680 | free(rf->meter_mod); | |
d18cc1ee AA |
5681 | break; |
5682 | ||
5683 | case OFPRFR_N_REASONS: | |
5684 | OVS_NOT_REACHED(); | |
3c35db62 NR |
5685 | } |
5686 | } | |
5687 | ||
307975da SH |
5688 | /* Table stats. */ |
5689 | ||
3c1bb396 BP |
5690 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5691 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5692 | * that contains both kinds of fields. */ | |
5693 | static struct mf_bitmap | |
5694 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5695 | { | |
5696 | struct mf_bitmap wc = features->match; | |
5697 | bitmap_not(wc.bm, MFF_N_IDS); | |
5698 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5699 | return wc; | |
5700 | } | |
5701 | ||
5702 | struct ofp10_wc_map { | |
5703 | enum ofp10_flow_wildcards wc10; | |
5704 | enum mf_field_id mf; | |
5705 | }; | |
5706 | ||
5707 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5708 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5709 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5710 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5711 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5712 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5713 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5714 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5715 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5716 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5717 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5718 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5719 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5720 | }; | |
5721 | ||
5722 | static ovs_be32 | |
5723 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5724 | { | |
5725 | const struct ofp10_wc_map *p; | |
5726 | uint32_t wc10 = 0; | |
5727 | ||
5728 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5729 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5730 | wc10 |= p->wc10; | |
5731 | } | |
5732 | } | |
5733 | return htonl(wc10); | |
5734 | } | |
5735 | ||
5736 | static struct mf_bitmap | |
5737 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5738 | { | |
5739 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5740 | const struct ofp10_wc_map *p; | |
5741 | uint32_t wc10 = ntohl(wc10_); | |
5742 | ||
5743 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5744 | if (wc10 & p->wc10) { | |
5745 | bitmap_set1(fields.bm, p->mf); | |
5746 | } | |
5747 | } | |
5748 | return fields; | |
5749 | } | |
5750 | ||
307975da | 5751 | static void |
3c1bb396 BP |
5752 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5753 | const struct ofputil_table_features *features, | |
307975da SH |
5754 | struct ofpbuf *buf) |
5755 | { | |
3c1bb396 | 5756 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5757 | struct ofp10_table_stats *out; |
307975da | 5758 | |
3bdc692b | 5759 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5760 | out->table_id = features->table_id; |
5761 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5762 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5763 | out->max_entries = htonl(features->max_entries); | |
5764 | out->active_count = htonl(stats->active_count); | |
5765 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5766 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5767 | } | |
5768 | ||
5769 | struct ofp11_wc_map { | |
5770 | enum ofp11_flow_match_fields wc11; | |
5771 | enum mf_field_id mf; | |
5772 | }; | |
5773 | ||
5774 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5775 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5776 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5777 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5778 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5779 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5780 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5781 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5782 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5783 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5784 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5785 | /* I don't know what OFPFMF11_TYPE means. */ | |
5786 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5787 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5788 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5789 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5790 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5791 | }; | |
5792 | ||
5793 | static ovs_be32 | |
5794 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5795 | { | |
5796 | const struct ofp11_wc_map *p; | |
5797 | uint32_t wc11 = 0; | |
5798 | ||
5799 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5800 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5801 | wc11 |= p->wc11; | |
307975da SH |
5802 | } |
5803 | } | |
3c1bb396 | 5804 | return htonl(wc11); |
307975da SH |
5805 | } |
5806 | ||
3c1bb396 BP |
5807 | static struct mf_bitmap |
5808 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5809 | { | |
5810 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5811 | const struct ofp11_wc_map *p; | |
5812 | uint32_t wc11 = ntohl(wc11_); | |
5813 | ||
5814 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5815 | if (wc11 & p->wc11) { | |
5816 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5817 | } |
5818 | } | |
3c1bb396 | 5819 | return fields; |
307975da SH |
5820 | } |
5821 | ||
5822 | static void | |
3c1bb396 BP |
5823 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5824 | const struct ofputil_table_features *features, | |
307975da SH |
5825 | struct ofpbuf *buf) |
5826 | { | |
3c1bb396 | 5827 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5828 | struct ofp11_table_stats *out; |
5829 | ||
3bdc692b | 5830 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5831 | out->table_id = features->table_id; |
5832 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5833 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5834 | out->match = mf_bitmap_to_of11(&features->match); | |
5835 | out->instructions = ovsinst_bitmap_to_openflow( | |
5836 | features->nonmiss.instructions, OFP11_VERSION); | |
5837 | out->write_actions = ofpact_bitmap_to_openflow( | |
5838 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5839 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5840 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5841 | out->config = htonl(features->miss_config); | |
5842 | out->max_entries = htonl(features->max_entries); | |
5843 | out->active_count = htonl(stats->active_count); | |
5844 | out->lookup_count = htonll(stats->lookup_count); | |
5845 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5846 | } |
5847 | ||
6240624b | 5848 | static void |
3c1bb396 BP |
5849 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5850 | const struct ofputil_table_features *features, | |
6240624b BP |
5851 | struct ofpbuf *buf) |
5852 | { | |
08d1e234 | 5853 | struct ofp12_table_stats *out; |
6240624b | 5854 | |
08d1e234 | 5855 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5856 | out->table_id = features->table_id; |
5857 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
5858 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
5859 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
5860 | OFP12_VERSION); |
5861 | out->write_actions = ofpact_bitmap_to_openflow( | |
5862 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5863 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5864 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 5865 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 5866 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 5867 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
5868 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
5869 | out->metadata_match = features->metadata_match; | |
5870 | out->metadata_write = features->metadata_write; | |
5871 | out->instructions = ovsinst_bitmap_to_openflow( | |
5872 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
5873 | out->config = ofputil_encode_table_config(features->miss_config, |
5874 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 5875 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 5876 | OFP12_VERSION); |
3c1bb396 BP |
5877 | out->max_entries = htonl(features->max_entries); |
5878 | out->active_count = htonl(stats->active_count); | |
5879 | out->lookup_count = htonll(stats->lookup_count); | |
5880 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5881 | } |
5882 | ||
2e1ae200 | 5883 | static void |
3c1bb396 | 5884 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5885 | struct ofpbuf *buf) |
5886 | { | |
5887 | struct ofp13_table_stats *out; | |
5888 | ||
3c1bb396 BP |
5889 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5890 | out->table_id = stats->table_id; | |
5891 | out->active_count = htonl(stats->active_count); | |
5892 | out->lookup_count = htonll(stats->lookup_count); | |
5893 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5894 | } |
5895 | ||
307975da | 5896 | struct ofpbuf * |
3c1bb396 | 5897 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5898 | { |
3c1bb396 BP |
5899 | return ofpraw_alloc_stats_reply(request, 0); |
5900 | } | |
307975da | 5901 | |
3c1bb396 BP |
5902 | void |
5903 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5904 | const struct ofputil_table_stats *stats, | |
5905 | const struct ofputil_table_features *features) | |
5906 | { | |
6fd6ed71 | 5907 | struct ofp_header *oh = reply->header; |
307975da | 5908 | |
3c1bb396 | 5909 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5910 | |
3c1bb396 BP |
5911 | switch ((enum ofp_version) oh->version) { |
5912 | case OFP10_VERSION: | |
5913 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5914 | break; | |
307975da | 5915 | |
3c1bb396 BP |
5916 | case OFP11_VERSION: |
5917 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5918 | break; | |
307975da | 5919 | |
3c1bb396 BP |
5920 | case OFP12_VERSION: |
5921 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5922 | break; | |
2e1ae200 | 5923 | |
3c1bb396 BP |
5924 | case OFP13_VERSION: |
5925 | case OFP14_VERSION: | |
5926 | case OFP15_VERSION: | |
5927 | ofputil_put_ofp13_table_stats(stats, reply); | |
5928 | break; | |
5929 | ||
5930 | default: | |
5931 | OVS_NOT_REACHED(); | |
307975da | 5932 | } |
3c1bb396 | 5933 | } |
307975da | 5934 | |
3c1bb396 BP |
5935 | static int |
5936 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5937 | struct ofputil_table_stats *stats, | |
5938 | struct ofputil_table_features *features) | |
5939 | { | |
5940 | struct ofp10_table_stats *ots; | |
5941 | ||
5942 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5943 | if (!ots) { | |
5944 | return OFPERR_OFPBRC_BAD_LEN; | |
5945 | } | |
5946 | ||
5947 | features->table_id = ots->table_id; | |
5948 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5949 | features->max_entries = ntohl(ots->max_entries); | |
5950 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
5951 | ||
5952 | stats->table_id = ots->table_id; | |
5953 | stats->active_count = ntohl(ots->active_count); | |
5954 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
5955 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
5956 | ||
5957 | return 0; | |
5958 | } | |
5959 | ||
5960 | static int | |
5961 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
5962 | struct ofputil_table_stats *stats, | |
5963 | struct ofputil_table_features *features) | |
5964 | { | |
5965 | struct ofp11_table_stats *ots; | |
5966 | ||
5967 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5968 | if (!ots) { | |
5969 | return OFPERR_OFPBRC_BAD_LEN; | |
5970 | } | |
5971 | ||
5972 | features->table_id = ots->table_id; | |
5973 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5974 | features->max_entries = ntohl(ots->max_entries); | |
5975 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5976 | ots->instructions, OFP11_VERSION); | |
5977 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5978 | ots->write_actions, OFP11_VERSION); | |
5979 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5980 | ots->write_actions, OFP11_VERSION); | |
5981 | features->miss = features->nonmiss; | |
82c22d34 BP |
5982 | features->miss_config = ofputil_decode_table_miss(ots->config, |
5983 | OFP11_VERSION); | |
3c1bb396 BP |
5984 | features->match = mf_bitmap_from_of11(ots->match); |
5985 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
5986 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5987 | ||
5988 | stats->table_id = ots->table_id; | |
5989 | stats->active_count = ntohl(ots->active_count); | |
5990 | stats->lookup_count = ntohll(ots->lookup_count); | |
5991 | stats->matched_count = ntohll(ots->matched_count); | |
5992 | ||
5993 | return 0; | |
5994 | } | |
5995 | ||
5996 | static int | |
5997 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
5998 | struct ofputil_table_stats *stats, | |
5999 | struct ofputil_table_features *features) | |
6000 | { | |
6001 | struct ofp12_table_stats *ots; | |
6002 | ||
6003 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6004 | if (!ots) { | |
6005 | return OFPERR_OFPBRC_BAD_LEN; | |
6006 | } | |
6007 | ||
6008 | features->table_id = ots->table_id; | |
6009 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6010 | features->metadata_match = ots->metadata_match; | |
6011 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6012 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6013 | OFP12_VERSION); | |
3c1bb396 BP |
6014 | features->max_entries = ntohl(ots->max_entries); |
6015 | ||
6016 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6017 | ots->instructions, OFP12_VERSION); | |
6018 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6019 | ots->write_actions, OFP12_VERSION); | |
6020 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6021 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6022 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6023 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6024 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6025 | ots->apply_setfields, OFP12_VERSION); |
6026 | features->miss = features->nonmiss; | |
6027 | ||
178742f9 BP |
6028 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6029 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6030 | OFP12_VERSION); | |
3c1bb396 BP |
6031 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6032 | ||
6033 | stats->table_id = ots->table_id; | |
6034 | stats->active_count = ntohl(ots->active_count); | |
6035 | stats->lookup_count = ntohll(ots->lookup_count); | |
6036 | stats->matched_count = ntohll(ots->matched_count); | |
6037 | ||
6038 | return 0; | |
6039 | } | |
6040 | ||
6041 | static int | |
6042 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6043 | struct ofputil_table_stats *stats, | |
6044 | struct ofputil_table_features *features) | |
6045 | { | |
6046 | struct ofp13_table_stats *ots; | |
6047 | ||
6048 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6049 | if (!ots) { | |
6050 | return OFPERR_OFPBRC_BAD_LEN; | |
6051 | } | |
6052 | ||
6053 | features->table_id = ots->table_id; | |
6054 | ||
6055 | stats->table_id = ots->table_id; | |
6056 | stats->active_count = ntohl(ots->active_count); | |
6057 | stats->lookup_count = ntohll(ots->lookup_count); | |
6058 | stats->matched_count = ntohll(ots->matched_count); | |
6059 | ||
6060 | return 0; | |
6061 | } | |
6062 | ||
6063 | int | |
6064 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6065 | struct ofputil_table_stats *stats, | |
6066 | struct ofputil_table_features *features) | |
6067 | { | |
6068 | const struct ofp_header *oh; | |
6069 | ||
6fd6ed71 | 6070 | if (!msg->header) { |
3c1bb396 BP |
6071 | ofpraw_pull_assert(msg); |
6072 | } | |
6fd6ed71 | 6073 | oh = msg->header; |
3c1bb396 | 6074 | |
6fd6ed71 | 6075 | if (!msg->size) { |
3c1bb396 BP |
6076 | return EOF; |
6077 | } | |
6078 | ||
6079 | memset(stats, 0, sizeof *stats); | |
6080 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6081 | features->supports_eviction = -1; |
6082 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6083 | |
6084 | switch ((enum ofp_version) oh->version) { | |
6085 | case OFP10_VERSION: | |
6086 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6087 | ||
6088 | case OFP11_VERSION: | |
6089 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6090 | ||
6091 | case OFP12_VERSION: | |
6092 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6093 | ||
6094 | case OFP13_VERSION: | |
6095 | case OFP14_VERSION: | |
6096 | case OFP15_VERSION: | |
6097 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
6098 | ||
6099 | default: | |
6100 | OVS_NOT_REACHED(); | |
6101 | } | |
307975da SH |
6102 | } |
6103 | \f | |
2b07c8b1 BP |
6104 | /* ofputil_flow_monitor_request */ |
6105 | ||
6106 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6107 | * ofputil_flow_monitor_request in 'rq'. | |
6108 | * | |
6109 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6110 | * message. Calling this function multiple times for a single 'msg' iterates | |
6111 | * through the requests. The caller must initially leave 'msg''s layer | |
6112 | * pointers null and not modify them between calls. | |
6113 | * | |
6114 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6115 | * otherwise an OFPERR_* value. */ | |
6116 | int | |
6117 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6118 | struct ofpbuf *msg) | |
6119 | { | |
6120 | struct nx_flow_monitor_request *nfmr; | |
6121 | uint16_t flags; | |
6122 | ||
6fd6ed71 | 6123 | if (!msg->header) { |
982697a4 | 6124 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6125 | } |
6126 | ||
6fd6ed71 | 6127 | if (!msg->size) { |
2b07c8b1 BP |
6128 | return EOF; |
6129 | } | |
6130 | ||
6131 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6132 | if (!nfmr) { | |
437d0d22 | 6133 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6134 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6135 | return OFPERR_OFPBRC_BAD_LEN; |
6136 | } | |
6137 | ||
6138 | flags = ntohs(nfmr->flags); | |
6139 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6140 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6141 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6142 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6143 | flags); | |
04f9f286 | 6144 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6145 | } |
6146 | ||
6147 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6148 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6149 | } | |
6150 | ||
6151 | rq->id = ntohl(nfmr->id); | |
6152 | rq->flags = flags; | |
4e022ec0 | 6153 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6154 | rq->table_id = nfmr->table_id; |
6155 | ||
81a76618 | 6156 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
6157 | } |
6158 | ||
6159 | void | |
6160 | ofputil_append_flow_monitor_request( | |
6161 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6162 | { | |
6163 | struct nx_flow_monitor_request *nfmr; | |
6164 | size_t start_ofs; | |
6165 | int match_len; | |
6166 | ||
6fd6ed71 | 6167 | if (!msg->size) { |
982697a4 | 6168 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6169 | } |
6170 | ||
6fd6ed71 | 6171 | start_ofs = msg->size; |
2b07c8b1 | 6172 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6173 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6174 | |
6175 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6176 | nfmr->id = htonl(rq->id); | |
6177 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6178 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6179 | nfmr->match_len = htons(match_len); |
6180 | nfmr->table_id = rq->table_id; | |
6181 | } | |
6182 | ||
6183 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6184 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6185 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6186 | * |
6187 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6188 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6189 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6190 | * will point into the 'ofpacts' buffer. | |
6191 | * | |
6192 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6193 | * this function multiple times for a single 'msg' iterates through the | |
6194 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6195 | * not modify them between calls. | |
6196 | * | |
6197 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6198 | * otherwise an OFPERR_* value. */ | |
6199 | int | |
6200 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6201 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6202 | { | |
6203 | struct nx_flow_update_header *nfuh; | |
6204 | unsigned int length; | |
e3f8f887 | 6205 | struct ofp_header *oh; |
2b07c8b1 | 6206 | |
6fd6ed71 | 6207 | if (!msg->header) { |
982697a4 | 6208 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6209 | } |
6210 | ||
9abca1e5 | 6211 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6212 | if (!msg->size) { |
2b07c8b1 BP |
6213 | return EOF; |
6214 | } | |
6215 | ||
6fd6ed71 | 6216 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6217 | goto bad_len; |
6218 | } | |
6219 | ||
6fd6ed71 | 6220 | oh = msg->header; |
e3f8f887 | 6221 | |
6fd6ed71 | 6222 | nfuh = msg->data; |
2b07c8b1 BP |
6223 | update->event = ntohs(nfuh->event); |
6224 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6225 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6226 | goto bad_len; |
6227 | } | |
6228 | ||
6229 | if (update->event == NXFME_ABBREV) { | |
6230 | struct nx_flow_update_abbrev *nfua; | |
6231 | ||
6232 | if (length != sizeof *nfua) { | |
6233 | goto bad_len; | |
6234 | } | |
6235 | ||
6236 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6237 | update->xid = nfua->xid; | |
6238 | return 0; | |
6239 | } else if (update->event == NXFME_ADDED | |
6240 | || update->event == NXFME_DELETED | |
6241 | || update->event == NXFME_MODIFIED) { | |
6242 | struct nx_flow_update_full *nfuf; | |
6243 | unsigned int actions_len; | |
6244 | unsigned int match_len; | |
6245 | enum ofperr error; | |
6246 | ||
6247 | if (length < sizeof *nfuf) { | |
6248 | goto bad_len; | |
6249 | } | |
6250 | ||
6251 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6252 | match_len = ntohs(nfuf->match_len); | |
6253 | if (sizeof *nfuf + match_len > length) { | |
6254 | goto bad_len; | |
6255 | } | |
6256 | ||
6257 | update->reason = ntohs(nfuf->reason); | |
6258 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6259 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6260 | update->table_id = nfuf->table_id; | |
6261 | update->cookie = nfuf->cookie; | |
81a76618 | 6262 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6263 | |
81a76618 | 6264 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6265 | if (error) { |
6266 | return error; | |
6267 | } | |
6268 | ||
6269 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6270 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6271 | ofpacts); | |
2b07c8b1 BP |
6272 | if (error) { |
6273 | return error; | |
6274 | } | |
6275 | ||
6fd6ed71 PS |
6276 | update->ofpacts = ofpacts->data; |
6277 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6278 | return 0; |
6279 | } else { | |
6280 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6281 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6282 | ntohs(nfuh->event)); | |
15549878 | 6283 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6284 | } |
6285 | ||
6286 | bad_len: | |
437d0d22 | 6287 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6288 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6289 | return OFPERR_OFPBRC_BAD_LEN; |
6290 | } | |
6291 | ||
6292 | uint32_t | |
6293 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6294 | { | |
982697a4 BP |
6295 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6296 | ||
6297 | return ntohl(cancel->id); | |
2b07c8b1 | 6298 | } |
9e1fd49b | 6299 | |
2b07c8b1 BP |
6300 | struct ofpbuf * |
6301 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6302 | { | |
6303 | struct nx_flow_monitor_cancel *nfmc; | |
6304 | struct ofpbuf *msg; | |
6305 | ||
982697a4 BP |
6306 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6307 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6308 | nfmc->id = htonl(id); |
6309 | return msg; | |
6310 | } | |
6311 | ||
6312 | void | |
ca6ba700 | 6313 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6314 | { |
6315 | struct ofpbuf *msg; | |
6316 | ||
982697a4 BP |
6317 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6318 | htonl(0), 1024); | |
2b07c8b1 BP |
6319 | |
6320 | list_init(replies); | |
6321 | list_push_back(replies, &msg->list_node); | |
6322 | } | |
6323 | ||
6324 | void | |
6325 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6326 | struct ovs_list *replies) |
2b07c8b1 | 6327 | { |
e28ac5cf | 6328 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6329 | struct nx_flow_update_header *nfuh; |
6330 | struct ofpbuf *msg; | |
6331 | size_t start_ofs; | |
6332 | ||
6333 | msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 6334 | start_ofs = msg->size; |
2b07c8b1 BP |
6335 | |
6336 | if (update->event == NXFME_ABBREV) { | |
6337 | struct nx_flow_update_abbrev *nfua; | |
6338 | ||
6339 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6340 | nfua->xid = update->xid; | |
6341 | } else { | |
6342 | struct nx_flow_update_full *nfuf; | |
6343 | int match_len; | |
6344 | ||
6345 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6346 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6347 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6348 | version); | |
2b07c8b1 BP |
6349 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6350 | nfuf->reason = htons(update->reason); | |
81a76618 | 6351 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6352 | nfuf->idle_timeout = htons(update->idle_timeout); |
6353 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6354 | nfuf->match_len = htons(match_len); | |
6355 | nfuf->table_id = update->table_id; | |
6356 | nfuf->cookie = update->cookie; | |
6357 | } | |
6358 | ||
6359 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6360 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6361 | nfuh->event = htons(update->event); |
6362 | ||
982697a4 | 6363 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6364 | } |
6365 | \f | |
c6a93eb7 | 6366 | struct ofpbuf * |
de0f3156 SH |
6367 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6368 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6369 | { |
de0f3156 | 6370 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6371 | struct ofpbuf *msg; |
6372 | size_t size; | |
6373 | ||
982697a4 | 6374 | size = po->ofpacts_len; |
c6a93eb7 BP |
6375 | if (po->buffer_id == UINT32_MAX) { |
6376 | size += po->packet_len; | |
6377 | } | |
6378 | ||
de0f3156 SH |
6379 | switch (ofp_version) { |
6380 | case OFP10_VERSION: { | |
31a9e63f | 6381 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6382 | size_t actions_ofs; |
6383 | ||
6384 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6385 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6386 | actions_ofs = msg->size; |
e3f8f887 JR |
6387 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6388 | ofp_version); | |
de0f3156 | 6389 | |
6fd6ed71 | 6390 | opo = msg->msg; |
de0f3156 | 6391 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6392 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6393 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6394 | break; |
6395 | } | |
f25d0cf3 | 6396 | |
de0f3156 | 6397 | case OFP11_VERSION: |
2e1ae200 | 6398 | case OFP12_VERSION: |
c37c0382 | 6399 | case OFP13_VERSION: |
42dccab5 BP |
6400 | case OFP14_VERSION: |
6401 | case OFP15_VERSION: { | |
7c1b1a0d SH |
6402 | struct ofp11_packet_out *opo; |
6403 | size_t len; | |
6404 | ||
6405 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6406 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6407 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6408 | ofp_version); | |
6fd6ed71 | 6409 | opo = msg->msg; |
7c1b1a0d SH |
6410 | opo->buffer_id = htonl(po->buffer_id); |
6411 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6412 | opo->actions_len = htons(len); | |
6413 | break; | |
6414 | } | |
6415 | ||
de0f3156 | 6416 | default: |
428b2edd | 6417 | OVS_NOT_REACHED(); |
de0f3156 | 6418 | } |
f25d0cf3 | 6419 | |
c6a93eb7 BP |
6420 | if (po->buffer_id == UINT32_MAX) { |
6421 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6422 | } | |
f25d0cf3 | 6423 | |
982697a4 | 6424 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6425 | |
6426 | return msg; | |
6427 | } | |
d1e2cf21 | 6428 | \f |
fa37b408 BP |
6429 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6430 | struct ofpbuf * | |
1a126c0c | 6431 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6432 | { |
1a126c0c | 6433 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6434 | htonl(0), 0); |
fa37b408 BP |
6435 | } |
6436 | ||
6437 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6438 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6439 | struct ofpbuf * | |
6440 | make_echo_reply(const struct ofp_header *rq) | |
6441 | { | |
982697a4 BP |
6442 | struct ofpbuf rq_buf; |
6443 | struct ofpbuf *reply; | |
6444 | ||
6445 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
6446 | ofpraw_pull_assert(&rq_buf); | |
6447 | ||
6fd6ed71 PS |
6448 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); |
6449 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
982697a4 | 6450 | return reply; |
fa37b408 BP |
6451 | } |
6452 | ||
efb80167 | 6453 | struct ofpbuf * |
a0ae0b6e | 6454 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6455 | { |
a0ae0b6e SH |
6456 | enum ofpraw type; |
6457 | ||
6458 | switch (ofp_version) { | |
42dccab5 | 6459 | case OFP15_VERSION: |
c37c0382 | 6460 | case OFP14_VERSION: |
2e1ae200 | 6461 | case OFP13_VERSION: |
a0ae0b6e SH |
6462 | case OFP12_VERSION: |
6463 | case OFP11_VERSION: | |
6464 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6465 | break; | |
6466 | ||
6467 | case OFP10_VERSION: | |
6468 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6469 | break; | |
6470 | ||
6471 | default: | |
428b2edd | 6472 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6473 | } |
6474 | ||
6475 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6476 | } |
6477 | ||
7257b535 | 6478 | const char * |
ad99e2ed | 6479 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6480 | { |
ad99e2ed BP |
6481 | switch (frag) { |
6482 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6483 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6484 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6485 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6486 | } |
6487 | ||
428b2edd | 6488 | OVS_NOT_REACHED(); |
7257b535 BP |
6489 | } |
6490 | ||
6491 | bool | |
ad99e2ed BP |
6492 | ofputil_frag_handling_from_string(const char *s, |
6493 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6494 | { |
6495 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6496 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6497 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6498 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6499 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6500 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6501 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6502 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6503 | } else { |
6504 | return false; | |
6505 | } | |
6506 | return true; | |
6507 | } | |
6508 | ||
7b7503ea BP |
6509 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6510 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6511 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6512 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6513 | * |
6514 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6515 | enum ofperr | |
4e022ec0 | 6516 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6517 | { |
6518 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6519 | ||
4e022ec0 AW |
6520 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6521 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6522 | return 0; |
4e022ec0 AW |
6523 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6524 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6525 | return 0; |
6526 | } else { | |
bc146369 | 6527 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6528 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6529 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6530 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6531 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6532 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6533 | } | |
6534 | } | |
6535 | ||
6536 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6537 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6538 | * | |
6539 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6540 | ovs_be32 | |
4e022ec0 | 6541 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6542 | { |
4e022ec0 AW |
6543 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6544 | ? ofp_to_u16(ofp10_port) | |
6545 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6546 | } |
6547 | ||
39dc9082 BP |
6548 | #define OFPUTIL_NAMED_PORTS \ |
6549 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6550 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6551 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6552 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6553 | OFPUTIL_NAMED_PORT(ALL) \ | |
6554 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6555 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6556 | OFPUTIL_NAMED_PORT(ANY) \ |
6557 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6558 | |
6559 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6560 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6561 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6562 | OFPUTIL_NAMED_PORT(NONE) |
6563 | ||
8010100b BP |
6564 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6565 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6566 | * (e.g. "LOCAL"). | |
c6100d92 | 6567 | * |
8010100b BP |
6568 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6569 | * or name. The caller should issue an error message in this case, because | |
6570 | * this function usually does not. (This gives the caller an opportunity to | |
6571 | * look up the port name another way, e.g. by contacting the switch and listing | |
6572 | * the names of all its ports). | |
c6100d92 BP |
6573 | * |
6574 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6575 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6576 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6577 | bool |
4e022ec0 | 6578 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6579 | { |
5b23ff7e | 6580 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6581 | |
5b23ff7e JR |
6582 | if (*s == '-') { |
6583 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6584 | return false; | |
6585 | } | |
8010100b | 6586 | *portp = 0; |
c6100d92 | 6587 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6588 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6589 | /* Pass. */ | |
6590 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6591 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6592 | "be translated to %u when talking to an OF1.1 or " | |
6593 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6594 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6595 | char name[OFP_MAX_PORT_NAME_LEN]; |
6596 | ||
6597 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6598 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6599 | "for compatibility with OpenFlow 1.1 and later", | |
6600 | name, port32); | |
4e022ec0 | 6601 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6602 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6603 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6604 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6605 | return false; |
c6100d92 | 6606 | } else { |
4e022ec0 | 6607 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6608 | } |
4e022ec0 AW |
6609 | |
6610 | *portp = u16_to_ofp(port32); | |
6611 | return true; | |
c6100d92 BP |
6612 | } else { |
6613 | struct pair { | |
6614 | const char *name; | |
4e022ec0 | 6615 | ofp_port_t value; |
c6100d92 BP |
6616 | }; |
6617 | static const struct pair pairs[] = { | |
39dc9082 | 6618 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6619 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6620 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6621 | }; |
6622 | const struct pair *p; | |
39dc9082 | 6623 | |
c6100d92 BP |
6624 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6625 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6626 | *portp = p->value; |
6627 | return true; | |
c6100d92 | 6628 | } |
39dc9082 | 6629 | } |
8010100b | 6630 | return false; |
39dc9082 | 6631 | } |
39dc9082 BP |
6632 | } |
6633 | ||
6634 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6635 | * Most ports' string representation is just the port number, but for special | |
6636 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6637 | void | |
4e022ec0 | 6638 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6639 | { |
28b11432 BP |
6640 | char name[OFP_MAX_PORT_NAME_LEN]; |
6641 | ||
6642 | ofputil_port_to_string(port, name, sizeof name); | |
6643 | ds_put_cstr(s, name); | |
6644 | } | |
39dc9082 | 6645 | |
28b11432 BP |
6646 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6647 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6648 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6649 | * by name, e.g. "LOCAL". */ | |
6650 | void | |
6651 | ofputil_port_to_string(ofp_port_t port, | |
6652 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6653 | { | |
39dc9082 | 6654 | switch (port) { |
28b11432 BP |
6655 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6656 | case OFPP_##NAME: \ | |
6657 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6658 | break; | |
39dc9082 BP |
6659 | OFPUTIL_NAMED_PORTS |
6660 | #undef OFPUTIL_NAMED_PORT | |
6661 | ||
6662 | default: | |
28b11432 BP |
6663 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6664 | break; | |
39dc9082 | 6665 | } |
39dc9082 BP |
6666 | } |
6667 | ||
7395c052 NZ |
6668 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6669 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6670 | * (either "ANY" or "ALL"). | |
6671 | * | |
6672 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6673 | * name. */ | |
6674 | bool | |
6675 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6676 | { | |
6677 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 6678 | *group_idp = OFPG_ANY; |
7395c052 | 6679 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 6680 | *group_idp = OFPG_ALL; |
7395c052 NZ |
6681 | } else if (!str_to_uint(s, 10, group_idp)) { |
6682 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6683 | "32-bit nonnegative integers or the keywords ANY or " | |
6684 | "ALL.)", s); | |
6685 | return false; | |
6686 | } | |
6687 | ||
6688 | return true; | |
6689 | } | |
6690 | ||
6691 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6692 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 6693 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
6694 | void |
6695 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6696 | { | |
6697 | char name[MAX_GROUP_NAME_LEN]; | |
6698 | ||
6699 | ofputil_group_to_string(group_id, name, sizeof name); | |
6700 | ds_put_cstr(s, name); | |
6701 | } | |
6702 | ||
6703 | ||
6704 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6705 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 6706 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
6707 | * by name, e.g. "ALL". */ |
6708 | void | |
6709 | ofputil_group_to_string(uint32_t group_id, | |
6710 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6711 | { | |
6712 | switch (group_id) { | |
30ef36c6 | 6713 | case OFPG_ALL: |
7395c052 NZ |
6714 | ovs_strlcpy(namebuf, "ALL", bufsize); |
6715 | break; | |
6716 | ||
30ef36c6 | 6717 | case OFPG_ANY: |
7395c052 NZ |
6718 | ovs_strlcpy(namebuf, "ANY", bufsize); |
6719 | break; | |
6720 | ||
6721 | default: | |
6722 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6723 | break; | |
6724 | } | |
6725 | } | |
6726 | ||
2be393ed JP |
6727 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6728 | * 'ofp_version', tries to pull the first element from the array. If | |
6729 | * successful, initializes '*pp' with an abstract representation of the | |
6730 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6731 | * On an error, returns a positive OFPERR_* value. */ | |
6732 | int | |
2e3fa633 | 6733 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6734 | struct ofputil_phy_port *pp) |
6735 | { | |
8c3cc785 BP |
6736 | memset(pp, 0, sizeof *pp); |
6737 | ||
2e3fa633 SH |
6738 | switch (ofp_version) { |
6739 | case OFP10_VERSION: { | |
2be393ed JP |
6740 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6741 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6742 | } |
6743 | case OFP11_VERSION: | |
2e1ae200 JR |
6744 | case OFP12_VERSION: |
6745 | case OFP13_VERSION: { | |
2be393ed JP |
6746 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6747 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6748 | } | |
c37c0382 | 6749 | case OFP14_VERSION: |
42dccab5 | 6750 | case OFP15_VERSION: |
6fd6ed71 | 6751 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6752 | default: |
428b2edd | 6753 | OVS_NOT_REACHED(); |
2e3fa633 | 6754 | } |
2be393ed JP |
6755 | } |
6756 | ||
3cbd9931 | 6757 | static void |
81a76618 | 6758 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6759 | { |
6760 | enum { | |
6761 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6762 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6763 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6764 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6765 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6766 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6767 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6768 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6769 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6770 | } may_match; |
6771 | ||
6772 | struct flow_wildcards wc; | |
6773 | ||
6774 | /* Figure out what fields may be matched. */ | |
81a76618 | 6775 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6776 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6777 | if (match->flow.nw_proto == IPPROTO_TCP || |
6778 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6779 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6780 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6781 | may_match |= MAY_TP_ADDR; |
6782 | } | |
81a76618 | 6783 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6784 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6785 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6786 | match->flow.nw_proto == IPPROTO_UDP || |
6787 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6788 | may_match |= MAY_TP_ADDR; |
81a76618 | 6789 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6790 | may_match |= MAY_TP_ADDR; |
81a76618 | 6791 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6792 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6793 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6794 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6795 | } | |
6796 | } | |
8087f5ff MM |
6797 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6798 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6799 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6800 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6801 | may_match = MAY_MPLS; | |
1c0b7503 | 6802 | } else { |
b459a924 BP |
6803 | may_match = 0; |
6804 | } | |
6805 | ||
6806 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6807 | wc = match->wc; |
b459a924 | 6808 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6809 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6810 | } |
6811 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6812 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6813 | } |
6814 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6815 | wc.masks.nw_proto = 0; |
b459a924 | 6816 | } |
9e44d715 | 6817 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6818 | wc.masks.nw_tos = 0; |
6819 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6820 | } |
6821 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 6822 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
6823 | } |
6824 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 6825 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 6826 | } |
d78477ec | 6827 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6828 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6829 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6830 | } |
6831 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6832 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6833 | } |
b02475c5 | 6834 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6835 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6836 | } |
b459a924 BP |
6837 | |
6838 | /* Log any changes. */ | |
81a76618 | 6839 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6840 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6841 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6842 | |
81a76618 BP |
6843 | match->wc = wc; |
6844 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6845 | |
6846 | if (log) { | |
81a76618 | 6847 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6848 | VLOG_INFO("normalization changed ofp_match, details:"); |
6849 | VLOG_INFO(" pre: %s", pre); | |
6850 | VLOG_INFO("post: %s", post); | |
6851 | free(pre); | |
6852 | free(post); | |
6853 | } | |
fa37b408 | 6854 | } |
3f09c339 | 6855 | } |
26c112c2 | 6856 | |
81a76618 | 6857 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6858 | * |
6859 | * 1. If the type of level N is known, then only the valid fields for that | |
6860 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6861 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6862 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6863 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6864 | * IPv4 flow. |
6865 | * | |
6866 | * 2. If the type of level N is not known (or not understood by Open | |
6867 | * vSwitch), then no fields at all for that level may be specified. For | |
6868 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6869 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6870 | * SCTP flow. |
6871 | * | |
81a76618 | 6872 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6873 | * message. */ |
6874 | void | |
81a76618 | 6875 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6876 | { |
81a76618 | 6877 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6878 | } |
6879 | ||
81a76618 BP |
6880 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6881 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6882 | * sense for use on flows received from elsewhere (so that a bug in the program |
6883 | * that sent them can be reported and corrected). */ | |
6884 | void | |
81a76618 | 6885 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6886 | { |
81a76618 | 6887 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6888 | } |
6889 | ||
0ff22822 BP |
6890 | /* Parses a key or a key-value pair from '*stringp'. |
6891 | * | |
6892 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6893 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6894 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6895 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6896 | * terminators. Returns true. | |
6897 | * | |
6898 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6899 | * NULL and returns false. */ | |
6900 | bool | |
6901 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6902 | { | |
6903 | char *pos, *key, *value; | |
6904 | size_t key_len; | |
6905 | ||
6906 | pos = *stringp; | |
6907 | pos += strspn(pos, ", \t\r\n"); | |
6908 | if (*pos == '\0') { | |
6909 | *keyp = *valuep = NULL; | |
6910 | return false; | |
6911 | } | |
6912 | ||
6913 | key = pos; | |
6914 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6915 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6916 | /* The value can be separated by a colon. */ | |
6917 | size_t value_len; | |
6918 | ||
6919 | value = key + key_len + 1; | |
6920 | value_len = strcspn(value, ", \t\r\n"); | |
6921 | pos = value + value_len + (value[value_len] != '\0'); | |
6922 | value[value_len] = '\0'; | |
6923 | } else if (key[key_len] == '(') { | |
6924 | /* The value can be surrounded by balanced parentheses. The outermost | |
6925 | * set of parentheses is removed. */ | |
6926 | int level = 1; | |
6927 | size_t value_len; | |
6928 | ||
6929 | value = key + key_len + 1; | |
6930 | for (value_len = 0; level > 0; value_len++) { | |
6931 | switch (value[value_len]) { | |
6932 | case '\0': | |
33cadc50 BP |
6933 | level = 0; |
6934 | break; | |
0ff22822 BP |
6935 | |
6936 | case '(': | |
6937 | level++; | |
6938 | break; | |
6939 | ||
6940 | case ')': | |
6941 | level--; | |
6942 | break; | |
6943 | } | |
6944 | } | |
6945 | value[value_len - 1] = '\0'; | |
6946 | pos = value + value_len; | |
6947 | } else { | |
6948 | /* There might be no value at all. */ | |
6949 | value = key + key_len; /* Will become the empty string below. */ | |
6950 | pos = key + key_len + (key[key_len] != '\0'); | |
6951 | } | |
6952 | key[key_len] = '\0'; | |
6953 | ||
6954 | *stringp = pos; | |
6955 | *keyp = key; | |
6956 | *valuep = value; | |
6957 | return true; | |
6958 | } | |
f8e4867e SH |
6959 | |
6960 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 6961 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
6962 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
6963 | struct ofpbuf * | |
4e022ec0 | 6964 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
6965 | { |
6966 | struct ofpbuf *request; | |
6967 | ||
6968 | switch (ofp_version) { | |
6969 | case OFP10_VERSION: { | |
6970 | struct ofp10_port_stats_request *req; | |
6971 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
6972 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 6973 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
6974 | break; |
6975 | } | |
6976 | case OFP11_VERSION: | |
2e1ae200 | 6977 | case OFP12_VERSION: |
c37c0382 | 6978 | case OFP13_VERSION: |
42dccab5 BP |
6979 | case OFP14_VERSION: |
6980 | case OFP15_VERSION: { | |
f8e4867e SH |
6981 | struct ofp11_port_stats_request *req; |
6982 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
6983 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6984 | req->port_no = ofputil_port_to_ofp11(port); | |
6985 | break; | |
6986 | } | |
6987 | default: | |
428b2edd | 6988 | OVS_NOT_REACHED(); |
f8e4867e SH |
6989 | } |
6990 | ||
6991 | return request; | |
6992 | } | |
6993 | ||
6994 | static void | |
6995 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
6996 | struct ofp10_port_stats *ps10) | |
6997 | { | |
4e022ec0 | 6998 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
6999 | memset(ps10->pad, 0, sizeof ps10->pad); |
7000 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7001 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7002 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7003 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7004 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7005 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7006 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7007 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7008 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7009 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7010 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7011 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7012 | } | |
7013 | ||
7014 | static void | |
7015 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7016 | struct ofp11_port_stats *ps11) | |
7017 | { | |
7018 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7019 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7020 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7021 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7022 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7023 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7024 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7025 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7026 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7027 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7028 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7029 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7030 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7031 | ps11->collisions = htonll(ops->stats.collisions); | |
7032 | } | |
7033 | ||
2e1ae200 JR |
7034 | static void |
7035 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7036 | struct ofp13_port_stats *ps13) | |
7037 | { | |
7038 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7039 | ps13->duration_sec = htonl(ops->duration_sec); |
7040 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7041 | } |
7042 | ||
5469537b BP |
7043 | static void |
7044 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7045 | struct ovs_list *replies) |
5469537b BP |
7046 | { |
7047 | struct ofp14_port_stats_prop_ethernet *eth; | |
7048 | struct ofp14_port_stats *ps14; | |
7049 | struct ofpbuf *reply; | |
7050 | ||
7051 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7052 | ||
7053 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7054 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7055 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7056 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7057 | ps14->duration_sec = htonl(ops->duration_sec); | |
7058 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7059 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7060 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7061 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7062 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7063 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7064 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7065 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7066 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7067 | ||
303721ee | 7068 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7069 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7070 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7071 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7072 | eth->collisions = htonll(ops->stats.collisions); | |
7073 | } | |
2e1ae200 | 7074 | |
ad4c35fe | 7075 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7076 | void |
ca6ba700 | 7077 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7078 | const struct ofputil_port_stats *ops) |
7079 | { | |
e28ac5cf | 7080 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7081 | case OFP13_VERSION: { |
7082 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7083 | ofputil_port_stats_to_ofp13(ops, reply); | |
7084 | break; | |
7085 | } | |
f8e4867e SH |
7086 | case OFP12_VERSION: |
7087 | case OFP11_VERSION: { | |
7088 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7089 | ofputil_port_stats_to_ofp11(ops, reply); | |
7090 | break; | |
7091 | } | |
7092 | ||
7093 | case OFP10_VERSION: { | |
7094 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7095 | ofputil_port_stats_to_ofp10(ops, reply); | |
7096 | break; | |
7097 | } | |
7098 | ||
c37c0382 | 7099 | case OFP14_VERSION: |
42dccab5 | 7100 | case OFP15_VERSION: |
5469537b | 7101 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7102 | break; |
7103 | ||
f8e4867e | 7104 | default: |
428b2edd | 7105 | OVS_NOT_REACHED(); |
f8e4867e SH |
7106 | } |
7107 | } | |
7108 | ||
7109 | static enum ofperr | |
7110 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7111 | const struct ofp10_port_stats *ps10) | |
7112 | { | |
7113 | memset(ops, 0, sizeof *ops); | |
7114 | ||
4e022ec0 | 7115 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7116 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7117 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7118 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7119 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7120 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7121 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7122 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7123 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7124 | ops->stats.rx_frame_errors = | |
7125 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7126 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7127 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7128 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7129 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7130 | |
7131 | return 0; | |
7132 | } | |
7133 | ||
7134 | static enum ofperr | |
7135 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7136 | const struct ofp11_port_stats *ps11) | |
7137 | { | |
7138 | enum ofperr error; | |
7139 | ||
7140 | memset(ops, 0, sizeof *ops); | |
7141 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7142 | if (error) { | |
7143 | return error; | |
7144 | } | |
7145 | ||
7146 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7147 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7148 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7149 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7150 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7151 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7152 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7153 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7154 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7155 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7156 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7157 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7158 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7159 | |
7160 | return 0; | |
7161 | } | |
7162 | ||
2e1ae200 JR |
7163 | static enum ofperr |
7164 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7165 | const struct ofp13_port_stats *ps13) | |
7166 | { | |
65e0be10 | 7167 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7168 | if (!error) { |
65e0be10 BP |
7169 | ops->duration_sec = ntohl(ps13->duration_sec); |
7170 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7171 | } |
2e1ae200 JR |
7172 | return error; |
7173 | } | |
7174 | ||
5469537b BP |
7175 | static enum ofperr |
7176 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7177 | struct ofputil_port_stats *ops) | |
be0c30df | 7178 | { |
6fd6ed71 | 7179 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7180 | |
6fd6ed71 | 7181 | if (payload->size != sizeof *eth) { |
5469537b BP |
7182 | return OFPERR_OFPBPC_BAD_LEN; |
7183 | } | |
7184 | ||
7185 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7186 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7187 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7188 | ops->stats.collisions = ntohll(eth->collisions); | |
7189 | ||
7190 | return 0; | |
7191 | } | |
7192 | ||
7193 | static enum ofperr | |
7194 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7195 | struct ofpbuf *msg) | |
7196 | { | |
7197 | const struct ofp14_port_stats *ps14; | |
7198 | struct ofpbuf properties; | |
7199 | enum ofperr error; | |
7200 | size_t len; | |
7201 | ||
7202 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
7203 | if (!ps14) { | |
7204 | return OFPERR_OFPBRC_BAD_LEN; | |
7205 | } | |
7206 | ||
7207 | len = ntohs(ps14->length); | |
6fd6ed71 | 7208 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7209 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7210 | } |
5469537b BP |
7211 | len -= sizeof *ps14; |
7212 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
7213 | ||
7214 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
7215 | if (error) { | |
7216 | return error; | |
7217 | } | |
7218 | ||
7219 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7220 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7221 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7222 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7223 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7224 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7225 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7226 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7227 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7228 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7229 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7230 | ops->stats.rx_over_errors = UINT64_MAX; | |
7231 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7232 | ops->stats.collisions = UINT64_MAX; | |
7233 | ||
6fd6ed71 | 7234 | while (properties.size > 0) { |
5469537b BP |
7235 | struct ofpbuf payload; |
7236 | enum ofperr error; | |
34a543e3 | 7237 | uint64_t type; |
5469537b | 7238 | |
c5562271 | 7239 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
7240 | if (error) { |
7241 | return error; | |
7242 | } | |
7243 | ||
7244 | switch (type) { | |
7245 | case OFPPSPT14_ETHERNET: | |
7246 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7247 | break; | |
7248 | ||
7249 | default: | |
34a543e3 | 7250 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
7251 | break; |
7252 | } | |
7253 | ||
7254 | if (error) { | |
7255 | return error; | |
7256 | } | |
7257 | } | |
7258 | ||
7259 | return 0; | |
be0c30df | 7260 | } |
2e1ae200 | 7261 | |
f8e4867e SH |
7262 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7263 | * message 'oh'. */ | |
7264 | size_t | |
7265 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7266 | { | |
5469537b | 7267 | struct ofputil_port_stats ps; |
f8e4867e | 7268 | struct ofpbuf b; |
5469537b | 7269 | size_t n = 0; |
f8e4867e SH |
7270 | |
7271 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7272 | ofpraw_pull_assert(&b); | |
5469537b BP |
7273 | while (!ofputil_decode_port_stats(&ps, &b)) { |
7274 | n++; | |
7275 | } | |
7276 | return n; | |
f8e4867e SH |
7277 | } |
7278 | ||
7279 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7280 | * ofputil_port_stats in 'ps'. | |
7281 | * | |
7282 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7283 | * message. Calling this function multiple times for a single 'msg' iterates | |
7284 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7285 | * null and not modify them between calls. | |
7286 | * | |
7287 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7288 | * otherwise a positive errno value. */ | |
7289 | int | |
7290 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7291 | { | |
7292 | enum ofperr error; | |
7293 | enum ofpraw raw; | |
7294 | ||
6fd6ed71 | 7295 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7296 | : ofpraw_pull(&raw, msg)); |
7297 | if (error) { | |
7298 | return error; | |
7299 | } | |
7300 | ||
6fd6ed71 | 7301 | if (!msg->size) { |
f8e4867e | 7302 | return EOF; |
5469537b BP |
7303 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7304 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7305 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7306 | const struct ofp13_port_stats *ps13; | |
7307 | ||
7308 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7309 | if (!ps13) { | |
7310 | goto bad_len; | |
7311 | } | |
7312 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7313 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7314 | const struct ofp11_port_stats *ps11; | |
7315 | ||
7316 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7317 | if (!ps11) { | |
2e1ae200 | 7318 | goto bad_len; |
f8e4867e SH |
7319 | } |
7320 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7321 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7322 | const struct ofp10_port_stats *ps10; | |
7323 | ||
7324 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7325 | if (!ps10) { | |
2e1ae200 | 7326 | goto bad_len; |
f8e4867e SH |
7327 | } |
7328 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7329 | } else { | |
428b2edd | 7330 | OVS_NOT_REACHED(); |
f8e4867e SH |
7331 | } |
7332 | ||
2e1ae200 | 7333 | bad_len: |
437d0d22 | 7334 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7335 | "bytes at end", msg->size); |
2e1ae200 | 7336 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7337 | } |
7338 | ||
7339 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7340 | * port number and stores the latter in '*ofp10_port'. | |
7341 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7342 | enum ofperr | |
7343 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7344 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7345 | { |
7346 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7347 | case OFP15_VERSION: |
5469537b | 7348 | case OFP14_VERSION: |
2e1ae200 | 7349 | case OFP13_VERSION: |
f8e4867e SH |
7350 | case OFP12_VERSION: |
7351 | case OFP11_VERSION: { | |
7352 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7353 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7354 | } | |
7355 | ||
7356 | case OFP10_VERSION: { | |
7357 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7358 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7359 | return 0; |
7360 | } | |
7361 | ||
7362 | default: | |
428b2edd | 7363 | OVS_NOT_REACHED(); |
f8e4867e SH |
7364 | } |
7365 | } | |
64626975 | 7366 | |
7395c052 NZ |
7367 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7368 | void | |
ca6ba700 | 7369 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7370 | { |
5f03c983 | 7371 | struct ofputil_bucket *bucket; |
7395c052 | 7372 | |
5f03c983 | 7373 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7374 | free(bucket->ofpacts); |
7375 | free(bucket); | |
7376 | } | |
7377 | } | |
7378 | ||
103b4866 SH |
7379 | /* Clones 'bucket' and its ofpacts data */ |
7380 | static struct ofputil_bucket * | |
7381 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7382 | { | |
7383 | struct ofputil_bucket *new; | |
7384 | ||
7385 | new = xmemdup(bucket, sizeof *bucket); | |
7386 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7387 | ||
7388 | return new; | |
7389 | } | |
7390 | ||
7391 | /* Clones each of the buckets in the list 'src' appending them | |
7392 | * in turn to 'dest' which should be an initialised list. | |
7393 | * An exception is that if the pointer value of a bucket in 'src' | |
7394 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7395 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7396 | * be cloned and appended to 'dest'. */ | |
7397 | void | |
ca6ba700 | 7398 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7399 | const struct ofputil_bucket *skip) |
7400 | { | |
7401 | struct ofputil_bucket *bucket; | |
7402 | ||
7403 | LIST_FOR_EACH (bucket, list_node, src) { | |
7404 | struct ofputil_bucket *new_bucket; | |
7405 | ||
7406 | if (bucket == skip) { | |
7407 | continue; | |
7408 | } | |
7409 | ||
7410 | new_bucket = ofputil_bucket_clone_data(bucket); | |
7411 | list_push_back(dest, &new_bucket->list_node); | |
7412 | } | |
7413 | } | |
7414 | ||
7415 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7416 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7417 | struct ofputil_bucket * | |
ca6ba700 | 7418 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7419 | { |
7420 | struct ofputil_bucket *bucket; | |
7421 | ||
7422 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7423 | return NULL; | |
7424 | } | |
7425 | ||
7426 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7427 | if (bucket->bucket_id == bucket_id) { | |
7428 | return bucket; | |
7429 | } | |
7430 | } | |
7431 | ||
7432 | return NULL; | |
7433 | } | |
7434 | ||
7435 | /* Returns true if more than one bucket in the list 'buckets' | |
7436 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7437 | bool |
ca6ba700 | 7438 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7439 | { |
7440 | struct ofputil_bucket *i, *j; | |
7441 | ||
7442 | LIST_FOR_EACH (i, list_node, buckets) { | |
7443 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7444 | if (i == j) { | |
7445 | break; | |
7446 | } | |
7447 | if (i->bucket_id == j->bucket_id) { | |
7448 | return true; | |
7449 | } | |
7450 | } | |
7451 | } | |
7452 | ||
7453 | return false; | |
7454 | } | |
7455 | ||
103b4866 SH |
7456 | /* Returns the bucket at the front of the list 'buckets'. |
7457 | * Undefined if 'buckets is empty. */ | |
7458 | struct ofputil_bucket * | |
ca6ba700 | 7459 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7460 | { |
7461 | static struct ofputil_bucket *bucket; | |
7462 | ||
7463 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
7464 | ||
7465 | return bucket; | |
7466 | } | |
7467 | ||
7468 | /* Returns the bucket at the back of the list 'buckets'. | |
7469 | * Undefined if 'buckets is empty. */ | |
7470 | struct ofputil_bucket * | |
ca6ba700 | 7471 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7472 | { |
7473 | static struct ofputil_bucket *bucket; | |
7474 | ||
7475 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
7476 | ||
7477 | return bucket; | |
7478 | } | |
7479 | ||
7395c052 NZ |
7480 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7481 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7482 | * for all groups.) | |
7483 | * | |
7484 | * Group statistics include packet and byte counts for each group. */ | |
7485 | struct ofpbuf * | |
7486 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7487 | uint32_t group_id) | |
7488 | { | |
7489 | struct ofpbuf *request; | |
7490 | ||
7491 | switch (ofp_version) { | |
7492 | case OFP10_VERSION: | |
7493 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7494 | "(\'-O OpenFlow11\')"); | |
7495 | case OFP11_VERSION: | |
7496 | case OFP12_VERSION: | |
c37c0382 | 7497 | case OFP13_VERSION: |
42dccab5 BP |
7498 | case OFP14_VERSION: |
7499 | case OFP15_VERSION: { | |
7395c052 NZ |
7500 | struct ofp11_group_stats_request *req; |
7501 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7502 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7503 | req->group_id = htonl(group_id); | |
7504 | break; | |
7505 | } | |
7506 | default: | |
428b2edd | 7507 | OVS_NOT_REACHED(); |
7395c052 NZ |
7508 | } |
7509 | ||
7510 | return request; | |
7511 | } | |
7512 | ||
bc65c25a SH |
7513 | void |
7514 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7515 | { | |
7516 | ofputil_bucket_list_destroy(&gd->buckets); | |
7517 | free(&gd->props.fields); | |
7518 | } | |
7519 | ||
19187a71 BP |
7520 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7521 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7522 | * requested. */ | |
7523 | uint32_t | |
7524 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7525 | { | |
7526 | struct ofpbuf request; | |
7527 | enum ofpraw raw; | |
7528 | ||
7529 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
7530 | raw = ofpraw_pull_assert(&request); | |
7531 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
7532 | return OFPG_ALL; | |
7533 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7534 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7535 | return ntohl(*group_id); | |
7536 | } else { | |
7537 | OVS_NOT_REACHED(); | |
7538 | } | |
7539 | } | |
7540 | ||
7395c052 | 7541 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7542 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7543 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7544 | * groups). | |
7395c052 NZ |
7545 | * |
7546 | * Group descriptions include the bucket and action configuration for each | |
7547 | * group. */ | |
7548 | struct ofpbuf * | |
19187a71 BP |
7549 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7550 | uint32_t group_id) | |
7395c052 NZ |
7551 | { |
7552 | struct ofpbuf *request; | |
7553 | ||
7554 | switch (ofp_version) { | |
7555 | case OFP10_VERSION: | |
7556 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7557 | "(\'-O OpenFlow11\')"); | |
7558 | case OFP11_VERSION: | |
7559 | case OFP12_VERSION: | |
c37c0382 AC |
7560 | case OFP13_VERSION: |
7561 | case OFP14_VERSION: | |
19187a71 BP |
7562 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7563 | ofp_version, 0); | |
7564 | break; | |
d4d3f33e MT |
7565 | case OFP15_VERSION:{ |
7566 | struct ofp15_group_desc_request *req; | |
19187a71 BP |
7567 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7568 | ofp_version, 0); | |
d4d3f33e MT |
7569 | req = ofpbuf_put_zeros(request, sizeof *req); |
7570 | req->group_id = htonl(group_id); | |
7395c052 | 7571 | break; |
d4d3f33e | 7572 | } |
7395c052 | 7573 | default: |
428b2edd | 7574 | OVS_NOT_REACHED(); |
7395c052 NZ |
7575 | } |
7576 | ||
7577 | return request; | |
7578 | } | |
7579 | ||
dcbe78ad | 7580 | static void |
63759e71 AZ |
7581 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7582 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7583 | { |
7395c052 NZ |
7584 | int i; |
7585 | ||
dcbe78ad AZ |
7586 | for (i = 0; i < gs->n_buckets; i++) { |
7587 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7588 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7589 | } |
7395c052 NZ |
7590 | } |
7591 | ||
7592 | static void | |
dcbe78ad | 7593 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7594 | struct ofp11_group_stats *gs11, size_t length, |
7595 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7596 | { |
63759e71 AZ |
7597 | memset(gs11, 0, sizeof *gs11); |
7598 | gs11->length = htons(length); | |
7599 | gs11->group_id = htonl(gs->group_id); | |
7600 | gs11->ref_count = htonl(gs->ref_count); | |
7601 | gs11->packet_count = htonll(gs->packet_count); | |
7602 | gs11->byte_count = htonll(gs->byte_count); | |
7603 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7604 | } |
7395c052 | 7605 | |
dcbe78ad AZ |
7606 | static void |
7607 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7608 | struct ofp13_group_stats *gs13, size_t length, |
7609 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7610 | { |
63759e71 | 7611 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7612 | gs13->duration_sec = htonl(gs->duration_sec); |
7613 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7614 | |
7395c052 NZ |
7615 | } |
7616 | ||
dcbe78ad | 7617 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7618 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7619 | * must have originally been initialized with ofpmp_init(). */ | |
7620 | void | |
ca6ba700 | 7621 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 7622 | const struct ofputil_group_stats *gs) |
7395c052 | 7623 | { |
63759e71 AZ |
7624 | size_t bucket_counter_size; |
7625 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7626 | size_t length; |
7395c052 | 7627 | |
63759e71 AZ |
7628 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7629 | ||
e28ac5cf | 7630 | switch (ofpmp_version(replies)) { |
7395c052 | 7631 | case OFP11_VERSION: |
dcbe78ad | 7632 | case OFP12_VERSION:{ |
63759e71 | 7633 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7634 | |
63759e71 AZ |
7635 | length = sizeof *gs11 + bucket_counter_size; |
7636 | gs11 = ofpmp_append(replies, length); | |
7637 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7638 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7639 | break; |
7640 | } | |
7395c052 NZ |
7641 | |
7642 | case OFP13_VERSION: | |
42dccab5 BP |
7643 | case OFP14_VERSION: |
7644 | case OFP15_VERSION: { | |
63759e71 | 7645 | struct ofp13_group_stats *gs13; |
7395c052 | 7646 | |
63759e71 AZ |
7647 | length = sizeof *gs13 + bucket_counter_size; |
7648 | gs13 = ofpmp_append(replies, length); | |
7649 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7650 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7651 | break; |
7652 | } | |
c37c0382 | 7653 | |
7395c052 NZ |
7654 | case OFP10_VERSION: |
7655 | default: | |
428b2edd | 7656 | OVS_NOT_REACHED(); |
7395c052 NZ |
7657 | } |
7658 | } | |
7395c052 NZ |
7659 | /* Returns an OpenFlow group features request for OpenFlow version |
7660 | * 'ofp_version'. */ | |
7661 | struct ofpbuf * | |
7662 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7663 | { | |
7664 | struct ofpbuf *request = NULL; | |
7665 | ||
7666 | switch (ofp_version) { | |
7667 | case OFP10_VERSION: | |
7668 | case OFP11_VERSION: | |
7669 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7670 | "(\'-O OpenFlow12\')"); | |
7671 | case OFP12_VERSION: | |
c37c0382 AC |
7672 | case OFP13_VERSION: |
7673 | case OFP14_VERSION: | |
42dccab5 | 7674 | case OFP15_VERSION: |
7395c052 | 7675 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7676 | ofp_version, 0); |
7395c052 | 7677 | break; |
7395c052 | 7678 | default: |
428b2edd | 7679 | OVS_NOT_REACHED(); |
7395c052 NZ |
7680 | } |
7681 | ||
7682 | return request; | |
7683 | } | |
7684 | ||
7685 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7686 | * group features request 'request'. */ | |
7687 | struct ofpbuf * | |
7688 | ofputil_encode_group_features_reply( | |
7689 | const struct ofputil_group_features *features, | |
7690 | const struct ofp_header *request) | |
7691 | { | |
7692 | struct ofp12_group_features_stats *ogf; | |
7693 | struct ofpbuf *reply; | |
08d1e234 | 7694 | int i; |
7395c052 NZ |
7695 | |
7696 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7697 | request->version, request->xid, 0); | |
7698 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7699 | ogf->types = htonl(features->types); | |
7700 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7701 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7702 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7703 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7704 | request->version); | |
7705 | } | |
7395c052 NZ |
7706 | |
7707 | return reply; | |
7708 | } | |
7709 | ||
7710 | /* Decodes group features reply 'oh' into 'features'. */ | |
7711 | void | |
7712 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7713 | struct ofputil_group_features *features) | |
7714 | { | |
7715 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7716 | int i; |
7395c052 NZ |
7717 | |
7718 | features->types = ntohl(ogf->types); | |
7719 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7720 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7721 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7722 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7723 | ogf->actions[i], oh->version); | |
7724 | } | |
7395c052 NZ |
7725 | } |
7726 | ||
7727 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7728 | * group ID and stores the latter in '*group_id'. | |
7729 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7730 | enum ofperr | |
7731 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7732 | uint32_t *group_id) | |
7733 | { | |
7734 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7735 | *group_id = ntohl(gsr11->group_id); | |
7736 | return 0; | |
7737 | } | |
7738 | ||
7739 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7740 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7741 | * caller to eventually free. | |
7395c052 NZ |
7742 | * |
7743 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7744 | * Calling this function multiple times for a single 'msg' iterates through the | |
7745 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7746 | * not modify them between calls. | |
7747 | * | |
7748 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7749 | * otherwise a positive errno value. */ | |
7750 | int | |
7751 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7752 | struct ofputil_group_stats *gs) | |
7753 | { | |
7754 | struct ofp11_bucket_counter *obc; | |
7755 | struct ofp11_group_stats *ogs11; | |
7756 | enum ofpraw raw; | |
7757 | enum ofperr error; | |
7758 | size_t base_len; | |
7759 | size_t length; | |
7760 | size_t i; | |
7761 | ||
646b2a9c | 7762 | gs->bucket_stats = NULL; |
6fd6ed71 | 7763 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
7764 | : ofpraw_pull(&raw, msg)); |
7765 | if (error) { | |
7766 | return error; | |
7767 | } | |
7768 | ||
6fd6ed71 | 7769 | if (!msg->size) { |
7395c052 NZ |
7770 | return EOF; |
7771 | } | |
7772 | ||
7773 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7774 | base_len = sizeof *ogs11; | |
7775 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7776 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7777 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7778 | struct ofp13_group_stats *ogs13; | |
7779 | ||
7780 | base_len = sizeof *ogs13; | |
7781 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7782 | if (ogs13) { | |
7783 | ogs11 = &ogs13->gs; | |
7784 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7785 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7786 | } else { | |
7787 | ogs11 = NULL; | |
7788 | } | |
7789 | } else { | |
428b2edd | 7790 | OVS_NOT_REACHED(); |
7395c052 NZ |
7791 | } |
7792 | ||
7793 | if (!ogs11) { | |
437d0d22 | 7794 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7795 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7796 | return OFPERR_OFPBRC_BAD_LEN; |
7797 | } | |
7798 | length = ntohs(ogs11->length); | |
7799 | if (length < sizeof base_len) { | |
34582733 | 7800 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7801 | ofpraw_get_name(raw), length); |
7802 | return OFPERR_OFPBRC_BAD_LEN; | |
7803 | } | |
7804 | ||
7805 | gs->group_id = ntohl(ogs11->group_id); | |
7806 | gs->ref_count = ntohl(ogs11->ref_count); | |
7807 | gs->packet_count = ntohll(ogs11->packet_count); | |
7808 | gs->byte_count = ntohll(ogs11->byte_count); | |
7809 | ||
7810 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7811 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7812 | if (!obc) { | |
437d0d22 | 7813 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7814 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7815 | return OFPERR_OFPBRC_BAD_LEN; |
7816 | } | |
7817 | ||
646b2a9c | 7818 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7819 | for (i = 0; i < gs->n_buckets; i++) { |
7820 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7821 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7822 | } | |
7823 | ||
7824 | return 0; | |
7825 | } | |
7826 | ||
5097fee5 SH |
7827 | static void |
7828 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7829 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7830 | { | |
7831 | struct ofp11_bucket *ob; | |
7832 | size_t start; | |
7833 | ||
6fd6ed71 | 7834 | start = openflow->size; |
5097fee5 SH |
7835 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7836 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7837 | openflow, ofp_version); | |
7838 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7839 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
7840 | ob->weight = htons(bucket->weight); |
7841 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7842 | ob->watch_group = htonl(bucket->watch_group); | |
7843 | } | |
7844 | ||
18ac06d3 SH |
7845 | static void |
7846 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7847 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7848 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7849 | { | |
7850 | struct ofp15_bucket *ob; | |
7851 | size_t start, actions_start, actions_len; | |
7852 | ||
6fd6ed71 | 7853 | start = openflow->size; |
18ac06d3 SH |
7854 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7855 | ||
6fd6ed71 | 7856 | actions_start = openflow->size; |
18ac06d3 SH |
7857 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7858 | openflow, ofp_version); | |
6fd6ed71 | 7859 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
7860 | |
7861 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 7862 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
7863 | } |
7864 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
7865 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
7866 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
7867 | } |
7868 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 7869 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
7870 | } |
7871 | ||
7872 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7873 | ob->len = htons(openflow->size - start); |
79870963 | 7874 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
7875 | ob->bucket_id = htonl(bucket_id); |
7876 | } | |
7877 | ||
53eb84a5 SH |
7878 | static void |
7879 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
7880 | const struct ofputil_group_props *gp, | |
7881 | struct ofpbuf *openflow) | |
7882 | { | |
7883 | struct ntr_group_prop_selection_method *prop; | |
7884 | size_t start; | |
7885 | ||
7886 | start = openflow->size; | |
7887 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
7888 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
7889 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
7890 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
7891 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
7892 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
7893 | strcpy(prop->selection_method, gp->selection_method); | |
7894 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 7895 | ofpprop_end(openflow, start); |
53eb84a5 SH |
7896 | } |
7897 | ||
5be50252 SH |
7898 | static void |
7899 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7900 | const struct ovs_list *buckets, |
ca6ba700 | 7901 | struct ovs_list *replies, |
5be50252 | 7902 | enum ofp_version version) |
7395c052 NZ |
7903 | { |
7904 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7905 | struct ofp11_group_desc_stats *ogds; | |
7906 | struct ofputil_bucket *bucket; | |
7907 | size_t start_ogds; | |
7908 | ||
6fd6ed71 | 7909 | start_ogds = reply->size; |
7395c052 NZ |
7910 | ofpbuf_put_zeros(reply, sizeof *ogds); |
7911 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 7912 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
7913 | } |
7914 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 7915 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
7916 | ogds->type = gds->type; |
7917 | ogds->group_id = htonl(gds->group_id); | |
7918 | ||
7919 | ofpmp_postappend(replies, start_ogds); | |
7920 | } | |
7921 | ||
18ac06d3 SH |
7922 | static void |
7923 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7924 | const struct ovs_list *buckets, |
ca6ba700 | 7925 | struct ovs_list *replies, |
18ac06d3 SH |
7926 | enum ofp_version version) |
7927 | { | |
7928 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7929 | struct ofp15_group_desc_stats *ogds; | |
7930 | struct ofputil_bucket *bucket; | |
7931 | size_t start_ogds, start_buckets; | |
7932 | ||
6fd6ed71 | 7933 | start_ogds = reply->size; |
18ac06d3 | 7934 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 7935 | start_buckets = reply->size; |
18ac06d3 SH |
7936 | LIST_FOR_EACH (bucket, list_node, buckets) { |
7937 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
7938 | gds->type, reply, version); | |
7939 | } | |
7940 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
7941 | ogds->type = gds->type; |
7942 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 7943 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 7944 | |
53eb84a5 SH |
7945 | /* Add group properties */ |
7946 | if (gds->props.selection_method[0]) { | |
7947 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
7948 | reply); | |
7949 | } | |
3986cae6 | 7950 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 7951 | |
18ac06d3 SH |
7952 | ofpmp_postappend(replies, start_ogds); |
7953 | } | |
7954 | ||
5be50252 SH |
7955 | /* Appends a group stats reply that contains the data in 'gds' to those already |
7956 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
7957 | * initialized with ofpmp_init(). */ | |
7958 | void | |
7959 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7960 | const struct ovs_list *buckets, |
ca6ba700 | 7961 | struct ovs_list *replies) |
5be50252 SH |
7962 | { |
7963 | enum ofp_version version = ofpmp_version(replies); | |
7964 | ||
7965 | switch (version) | |
7966 | { | |
7967 | case OFP11_VERSION: | |
7968 | case OFP12_VERSION: | |
7969 | case OFP13_VERSION: | |
7970 | case OFP14_VERSION: | |
5be50252 SH |
7971 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
7972 | break; | |
7973 | ||
18ac06d3 SH |
7974 | case OFP15_VERSION: |
7975 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
7976 | break; | |
7977 | ||
5be50252 SH |
7978 | case OFP10_VERSION: |
7979 | default: | |
7980 | OVS_NOT_REACHED(); | |
7981 | } | |
7982 | } | |
7983 | ||
7395c052 | 7984 | static enum ofperr |
655ed3ae | 7985 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 7986 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
7987 | { |
7988 | struct ofp11_bucket *ob; | |
18ac06d3 | 7989 | uint32_t bucket_id = 0; |
7395c052 NZ |
7990 | |
7991 | list_init(buckets); | |
7992 | while (buckets_length > 0) { | |
7993 | struct ofputil_bucket *bucket; | |
7994 | struct ofpbuf ofpacts; | |
7995 | enum ofperr error; | |
7996 | size_t ob_len; | |
7997 | ||
7998 | ob = (buckets_length >= sizeof *ob | |
7999 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8000 | : NULL); | |
8001 | if (!ob) { | |
34582733 | 8002 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8003 | buckets_length); |
e27e4ce9 | 8004 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8005 | } |
8006 | ||
8007 | ob_len = ntohs(ob->len); | |
8008 | if (ob_len < sizeof *ob) { | |
8009 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8010 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8011 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8012 | } else if (ob_len > buckets_length) { | |
8013 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8014 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8015 | ob_len, buckets_length); |
8016 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8017 | } | |
8018 | buckets_length -= ob_len; | |
8019 | ||
8020 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8021 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8022 | version, &ofpacts); | |
7395c052 NZ |
8023 | if (error) { |
8024 | ofpbuf_uninit(&ofpacts); | |
8025 | ofputil_bucket_list_destroy(buckets); | |
8026 | return error; | |
8027 | } | |
8028 | ||
8029 | bucket = xzalloc(sizeof *bucket); | |
8030 | bucket->weight = ntohs(ob->weight); | |
8031 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8032 | if (error) { | |
8033 | ofpbuf_uninit(&ofpacts); | |
8034 | ofputil_bucket_list_destroy(buckets); | |
8035 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8036 | } | |
8037 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8038 | bucket->bucket_id = bucket_id++; |
8039 | ||
7395c052 | 8040 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8041 | bucket->ofpacts_len = ofpacts.size; |
7395c052 NZ |
8042 | list_push_back(buckets, &bucket->list_node); |
8043 | } | |
8044 | ||
8045 | return 0; | |
8046 | } | |
8047 | ||
18ac06d3 SH |
8048 | static enum ofperr |
8049 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8050 | enum ofp_version version, uint8_t group_type, |
8051 | struct ovs_list *buckets) | |
18ac06d3 SH |
8052 | { |
8053 | struct ofp15_bucket *ob; | |
8054 | ||
8055 | list_init(buckets); | |
8056 | while (buckets_length > 0) { | |
8057 | struct ofputil_bucket *bucket = NULL; | |
8058 | struct ofpbuf ofpacts; | |
8059 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8060 | struct ofpbuf properties; | |
8061 | size_t ob_len, actions_len, properties_len; | |
8062 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8063 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8064 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8065 | |
8066 | ofpbuf_init(&ofpacts, 0); | |
8067 | ||
8068 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8069 | if (!ob) { | |
8070 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8071 | " leftover bytes", buckets_length); | |
8072 | goto err; | |
8073 | } | |
8074 | ||
8075 | ob_len = ntohs(ob->len); | |
79870963 | 8076 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8077 | |
8078 | if (ob_len < sizeof *ob) { | |
8079 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8080 | "%"PRIuSIZE" is not valid", ob_len); | |
8081 | goto err; | |
8082 | } else if (ob_len > buckets_length) { | |
8083 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8084 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8085 | PRIuSIZE, ob_len, buckets_length); | |
8086 | goto err; | |
8087 | } else if (actions_len > ob_len - sizeof *ob) { | |
8088 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8089 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8090 | "data size %"PRIuSIZE, actions_len, | |
8091 | ob_len - sizeof *ob); | |
8092 | goto err; | |
8093 | } | |
8094 | buckets_length -= ob_len; | |
8095 | ||
8096 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8097 | &ofpacts); | |
8098 | if (err) { | |
8099 | goto err; | |
8100 | } | |
8101 | ||
8102 | properties_len = ob_len - sizeof *ob - actions_len; | |
8103 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8104 | properties_len); | |
8105 | ||
6fd6ed71 | 8106 | while (properties.size > 0) { |
18ac06d3 | 8107 | struct ofpbuf payload; |
34a543e3 | 8108 | uint64_t type; |
18ac06d3 | 8109 | |
c5562271 | 8110 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
8111 | if (err) { |
8112 | goto err; | |
8113 | } | |
8114 | ||
8115 | switch (type) { | |
8116 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 8117 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
8118 | break; |
8119 | ||
8120 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 8121 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
8122 | break; |
8123 | ||
8124 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 8125 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
8126 | break; |
8127 | ||
8128 | default: | |
34a543e3 | 8129 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
8130 | break; |
8131 | } | |
8132 | ||
8133 | if (err) { | |
8134 | goto err; | |
8135 | } | |
8136 | } | |
8137 | ||
8138 | bucket = xzalloc(sizeof *bucket); | |
8139 | ||
8140 | bucket->weight = ntohs(weight); | |
8141 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8142 | if (err) { | |
8143 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8144 | goto err; | |
8145 | } | |
8146 | bucket->watch_group = ntohl(watch_group); | |
8147 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8148 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8149 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8150 | bucket->bucket_id); | |
8151 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8152 | goto err; | |
8153 | } | |
8154 | ||
8155 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8156 | bucket->ofpacts_len = ofpacts.size; |
18ac06d3 SH |
8157 | list_push_back(buckets, &bucket->list_node); |
8158 | ||
8159 | continue; | |
8160 | ||
8161 | err: | |
8162 | free(bucket); | |
8163 | ofpbuf_uninit(&ofpacts); | |
8164 | ofputil_bucket_list_destroy(buckets); | |
8165 | return err; | |
8166 | } | |
8167 | ||
8168 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8169 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8170 | ofputil_bucket_list_destroy(buckets); | |
8171 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8172 | } | |
8173 | ||
8174 | return 0; | |
8175 | } | |
8176 | ||
bc65c25a SH |
8177 | static void |
8178 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8179 | { | |
8180 | memset(gp, 0, sizeof *gp); | |
8181 | } | |
8182 | ||
8183 | static enum ofperr | |
8184 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8185 | enum ofp11_group_type group_type, | |
8186 | enum ofp15_group_mod_command group_cmd, | |
8187 | struct ofputil_group_props *gp) | |
8188 | { | |
8189 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8190 | size_t fields_len, method_len; | |
8191 | enum ofperr error; | |
8192 | ||
8193 | switch (group_type) { | |
8194 | case OFPGT11_SELECT: | |
8195 | break; | |
8196 | case OFPGT11_ALL: | |
8197 | case OFPGT11_INDIRECT: | |
8198 | case OFPGT11_FF: | |
c5562271 BP |
8199 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8200 | "only allowed for select groups"); | |
bc65c25a SH |
8201 | return OFPERR_OFPBPC_BAD_VALUE; |
8202 | default: | |
8203 | OVS_NOT_REACHED(); | |
8204 | } | |
8205 | ||
8206 | switch (group_cmd) { | |
8207 | case OFPGC15_ADD: | |
8208 | case OFPGC15_MODIFY: | |
8209 | break; | |
8210 | case OFPGC15_DELETE: | |
8211 | case OFPGC15_INSERT_BUCKET: | |
8212 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
8213 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8214 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
8215 | return OFPERR_OFPBPC_BAD_VALUE; |
8216 | default: | |
8217 | OVS_NOT_REACHED(); | |
8218 | } | |
8219 | ||
8220 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
8221 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
8222 | "length %u is not valid", payload->size); | |
bc65c25a SH |
8223 | return OFPERR_OFPBPC_BAD_LEN; |
8224 | } | |
8225 | ||
8226 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8227 | ||
8228 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
8229 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8230 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
8231 | return OFPERR_OFPBPC_BAD_VALUE; |
8232 | } | |
8233 | ||
0c4b9393 | 8234 | if (strcmp("hash", prop->selection_method)) { |
c5562271 BP |
8235 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8236 | "ntr selection method '%s' is not supported", | |
8237 | prop->selection_method); | |
0c4b9393 SH |
8238 | return OFPERR_OFPBPC_BAD_VALUE; |
8239 | } | |
bc65c25a SH |
8240 | |
8241 | strcpy(gp->selection_method, prop->selection_method); | |
8242 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8243 | ||
8244 | if (!method_len && gp->selection_method_param) { | |
c5562271 BP |
8245 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8246 | "non-zero but selection method is empty"); | |
bc65c25a SH |
8247 | return OFPERR_OFPBPC_BAD_VALUE; |
8248 | } | |
8249 | ||
8250 | ofpbuf_pull(payload, sizeof *prop); | |
8251 | ||
8252 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8253 | if (!method_len && fields_len) { | |
c5562271 BP |
8254 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8255 | "zero but fields are provided"); | |
bc65c25a SH |
8256 | return OFPERR_OFPBPC_BAD_VALUE; |
8257 | } | |
8258 | ||
8259 | error = oxm_pull_field_array(payload->data, fields_len, | |
8260 | &gp->fields); | |
8261 | if (error) { | |
c5562271 BP |
8262 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8263 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
8264 | return error; |
8265 | } | |
8266 | ||
8267 | return 0; | |
8268 | } | |
8269 | ||
bc65c25a SH |
8270 | static enum ofperr |
8271 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8272 | enum ofp11_group_type group_type, | |
8273 | enum ofp15_group_mod_command group_cmd, | |
8274 | struct ofputil_group_props *gp, | |
8275 | size_t properties_len) | |
8276 | { | |
8277 | struct ofpbuf properties; | |
8278 | ||
8279 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8280 | properties_len); | |
8281 | ||
8282 | while (properties.size > 0) { | |
8283 | struct ofpbuf payload; | |
8284 | enum ofperr error; | |
34a543e3 | 8285 | uint64_t type; |
bc65c25a | 8286 | |
c5562271 | 8287 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
8288 | if (error) { |
8289 | return error; | |
8290 | } | |
8291 | ||
8292 | switch (type) { | |
34a543e3 BP |
8293 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
8294 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
8295 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
8296 | group_cmd, gp); | |
bc65c25a SH |
8297 | break; |
8298 | ||
8299 | default: | |
34a543e3 | 8300 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
8301 | break; |
8302 | } | |
8303 | ||
8304 | if (error) { | |
8305 | return error; | |
8306 | } | |
8307 | } | |
8308 | ||
8309 | return 0; | |
8310 | } | |
8311 | ||
975910f2 SH |
8312 | static int |
8313 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8314 | struct ofpbuf *msg, | |
8315 | enum ofp_version version) | |
7395c052 NZ |
8316 | { |
8317 | struct ofp11_group_desc_stats *ogds; | |
8318 | size_t length; | |
8319 | ||
6fd6ed71 | 8320 | if (!msg->header) { |
7395c052 NZ |
8321 | ofpraw_pull_assert(msg); |
8322 | } | |
8323 | ||
6fd6ed71 | 8324 | if (!msg->size) { |
7395c052 NZ |
8325 | return EOF; |
8326 | } | |
8327 | ||
8328 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8329 | if (!ogds) { | |
437d0d22 | 8330 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8331 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8332 | return OFPERR_OFPBRC_BAD_LEN; |
8333 | } | |
8334 | gd->type = ogds->type; | |
8335 | gd->group_id = ntohl(ogds->group_id); | |
8336 | ||
8337 | length = ntohs(ogds->length); | |
6fd6ed71 | 8338 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8339 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8340 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8341 | return OFPERR_OFPBRC_BAD_LEN; |
8342 | } | |
8343 | ||
655ed3ae SH |
8344 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8345 | &gd->buckets); | |
7395c052 NZ |
8346 | } |
8347 | ||
18ac06d3 SH |
8348 | static int |
8349 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8350 | struct ofpbuf *msg, | |
8351 | enum ofp_version version) | |
8352 | { | |
8353 | struct ofp15_group_desc_stats *ogds; | |
8354 | uint16_t length, bucket_list_len; | |
bc65c25a | 8355 | int error; |
18ac06d3 | 8356 | |
6fd6ed71 | 8357 | if (!msg->header) { |
18ac06d3 SH |
8358 | ofpraw_pull_assert(msg); |
8359 | } | |
8360 | ||
6fd6ed71 | 8361 | if (!msg->size) { |
18ac06d3 SH |
8362 | return EOF; |
8363 | } | |
8364 | ||
8365 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8366 | if (!ogds) { | |
8367 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8368 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8369 | return OFPERR_OFPBRC_BAD_LEN; |
8370 | } | |
8371 | gd->type = ogds->type; | |
8372 | gd->group_id = ntohl(ogds->group_id); | |
8373 | ||
8374 | length = ntohs(ogds->length); | |
6fd6ed71 | 8375 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8376 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8377 | "length %u", length); | |
8378 | return OFPERR_OFPBRC_BAD_LEN; | |
8379 | } | |
8380 | ||
8381 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8382 | if (length < bucket_list_len + sizeof *ogds) { | |
8383 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8384 | "bucket list length %u", bucket_list_len); | |
8385 | return OFPERR_OFPBRC_BAD_LEN; | |
8386 | } | |
64e8c446 | 8387 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8388 | &gd->buckets); |
8389 | if (error) { | |
8390 | return error; | |
8391 | } | |
18ac06d3 | 8392 | |
bc65c25a SH |
8393 | /* By definition group desc messages don't have a group mod command. |
8394 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8395 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8396 | * against group mod messages with other commands supplying | |
8397 | * a NTR selection method group experimenter property. | |
8398 | * Such properties are valid for group desc replies so | |
8399 | * claim that the group mod command is OFPGC15_ADD to | |
8400 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8401 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8402 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8403 | } |
8404 | ||
975910f2 SH |
8405 | /* Converts a group description reply in 'msg' into an abstract |
8406 | * ofputil_group_desc in 'gd'. | |
8407 | * | |
8408 | * Multiple group description replies can be packed into a single OpenFlow | |
8409 | * message. Calling this function multiple times for a single 'msg' iterates | |
8410 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8411 | * null and not modify them between calls. | |
8412 | * | |
8413 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8414 | * otherwise a positive errno value. */ | |
8415 | int | |
8416 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8417 | struct ofpbuf *msg, enum ofp_version version) | |
8418 | { | |
bc65c25a SH |
8419 | ofputil_init_group_properties(&gd->props); |
8420 | ||
975910f2 SH |
8421 | switch (version) |
8422 | { | |
8423 | case OFP11_VERSION: | |
8424 | case OFP12_VERSION: | |
8425 | case OFP13_VERSION: | |
8426 | case OFP14_VERSION: | |
975910f2 SH |
8427 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8428 | ||
18ac06d3 SH |
8429 | case OFP15_VERSION: |
8430 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8431 | ||
975910f2 SH |
8432 | case OFP10_VERSION: |
8433 | default: | |
8434 | OVS_NOT_REACHED(); | |
8435 | } | |
8436 | } | |
8437 | ||
bc65c25a SH |
8438 | void |
8439 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8440 | { | |
8441 | ofputil_bucket_list_destroy(&gm->buckets); | |
8442 | } | |
8443 | ||
4498bea5 SH |
8444 | static struct ofpbuf * |
8445 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8446 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8447 | { |
8448 | struct ofpbuf *b; | |
8449 | struct ofp11_group_mod *ogm; | |
8450 | size_t start_ogm; | |
7395c052 | 8451 | struct ofputil_bucket *bucket; |
7395c052 | 8452 | |
4498bea5 | 8453 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8454 | start_ogm = b->size; |
4498bea5 SH |
8455 | ofpbuf_put_zeros(b, sizeof *ogm); |
8456 | ||
8457 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8458 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8459 | } | |
8460 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8461 | ogm->command = htons(gm->command); | |
8462 | ogm->type = gm->type; | |
8463 | ogm->group_id = htonl(gm->group_id); | |
8464 | ||
8465 | return b; | |
8466 | } | |
8467 | ||
18ac06d3 SH |
8468 | static struct ofpbuf * |
8469 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8470 | const struct ofputil_group_mod *gm) | |
8471 | { | |
8472 | struct ofpbuf *b; | |
8473 | struct ofp15_group_mod *ogm; | |
8474 | size_t start_ogm; | |
8475 | struct ofputil_bucket *bucket; | |
8476 | struct id_pool *bucket_ids = NULL; | |
8477 | ||
8478 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8479 | start_ogm = b->size; |
18ac06d3 SH |
8480 | ofpbuf_put_zeros(b, sizeof *ogm); |
8481 | ||
8482 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8483 | uint32_t bucket_id; | |
8484 | ||
8485 | /* Generate a bucket id if none was supplied */ | |
8486 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8487 | if (!bucket_ids) { | |
8488 | const struct ofputil_bucket *bkt; | |
8489 | ||
8490 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8491 | ||
8492 | /* Mark all bucket_ids that are present in gm | |
8493 | * as used in the pool. */ | |
8494 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8495 | if (bkt == bucket) { | |
8496 | break; | |
8497 | } | |
8498 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8499 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8500 | } | |
8501 | } | |
8502 | } | |
8503 | ||
8504 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8505 | OVS_NOT_REACHED(); | |
8506 | } | |
8507 | } else { | |
8508 | bucket_id = bucket->bucket_id; | |
8509 | } | |
8510 | ||
8511 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8512 | } | |
8513 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8514 | ogm->command = htons(gm->command); | |
8515 | ogm->type = gm->type; | |
8516 | ogm->group_id = htonl(gm->group_id); | |
8517 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8518 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8519 | |
53eb84a5 SH |
8520 | /* Add group properties */ |
8521 | if (gm->props.selection_method[0]) { | |
8522 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8523 | } | |
8524 | ||
18ac06d3 SH |
8525 | id_pool_destroy(bucket_ids); |
8526 | return b; | |
8527 | } | |
8528 | ||
d4b1d0ca | 8529 | static void |
9dd30b05 BP |
8530 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8531 | { | |
d4b1d0ca SH |
8532 | const char *opt_version; |
8533 | const char *version; | |
8534 | const char *cmd_str; | |
8535 | ||
8536 | switch (cmd) { | |
8537 | case OFPGC15_ADD: | |
8538 | case OFPGC15_MODIFY: | |
8539 | case OFPGC15_DELETE: | |
8540 | version = "1.1"; | |
8541 | opt_version = "11"; | |
8542 | break; | |
8543 | ||
8544 | case OFPGC15_INSERT_BUCKET: | |
8545 | case OFPGC15_REMOVE_BUCKET: | |
8546 | version = "1.5"; | |
8547 | opt_version = "15"; | |
9dd30b05 | 8548 | break; |
d4b1d0ca SH |
8549 | |
8550 | default: | |
8551 | OVS_NOT_REACHED(); | |
8552 | } | |
8553 | ||
8554 | switch (cmd) { | |
8555 | case OFPGC15_ADD: | |
8556 | cmd_str = "add-group"; | |
8557 | break; | |
8558 | ||
8559 | case OFPGC15_MODIFY: | |
8560 | cmd_str = "mod-group"; | |
8561 | break; | |
8562 | ||
8563 | case OFPGC15_DELETE: | |
8564 | cmd_str = "del-group"; | |
8565 | break; | |
8566 | ||
8567 | case OFPGC15_INSERT_BUCKET: | |
8568 | cmd_str = "insert-bucket"; | |
8569 | break; | |
8570 | ||
8571 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8572 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8573 | break; |
8574 | ||
8575 | default: | |
8576 | OVS_NOT_REACHED(); | |
8577 | } | |
8578 | ||
8579 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8580 | cmd_str, version, opt_version); | |
8581 | ||
8582 | } | |
8583 | ||
4498bea5 SH |
8584 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8585 | * 'ofp_version' and returns the message. */ | |
8586 | struct ofpbuf * | |
8587 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
8588 | const struct ofputil_group_mod *gm) | |
8589 | { | |
d4b1d0ca | 8590 | |
7395c052 | 8591 | switch (ofp_version) { |
d4b1d0ca SH |
8592 | case OFP10_VERSION: |
8593 | bad_group_cmd(gm->command); | |
7395c052 NZ |
8594 | |
8595 | case OFP11_VERSION: | |
8596 | case OFP12_VERSION: | |
c37c0382 AC |
8597 | case OFP13_VERSION: |
8598 | case OFP14_VERSION: | |
d4b1d0ca SH |
8599 | if (gm->command > OFPGC11_DELETE) { |
8600 | bad_group_cmd(gm->command); | |
8601 | } | |
4498bea5 | 8602 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 8603 | |
18ac06d3 SH |
8604 | case OFP15_VERSION: |
8605 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
8606 | ||
7395c052 | 8607 | default: |
428b2edd | 8608 | OVS_NOT_REACHED(); |
7395c052 | 8609 | } |
7395c052 NZ |
8610 | } |
8611 | ||
aead63f2 SH |
8612 | static enum ofperr |
8613 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8614 | struct ofputil_group_mod *gm) | |
8615 | { | |
8616 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 8617 | enum ofperr error; |
aead63f2 SH |
8618 | |
8619 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8620 | gm->command = ntohs(ogm->command); | |
8621 | gm->type = ogm->type; | |
8622 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8623 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 8624 | |
6fd6ed71 | 8625 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
8626 | &gm->buckets); |
8627 | ||
8628 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
8629 | if (!error | |
8630 | && ofp_version >= OFP13_VERSION | |
8631 | && gm->command == OFPGC11_DELETE | |
8632 | && !list_is_empty(&gm->buckets)) { | |
8633 | error = OFPERR_OFPGMFC_INVALID_GROUP; | |
8634 | } | |
8635 | ||
8636 | return error; | |
aead63f2 SH |
8637 | } |
8638 | ||
18ac06d3 SH |
8639 | static enum ofperr |
8640 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8641 | struct ofputil_group_mod *gm) | |
8642 | { | |
8643 | const struct ofp15_group_mod *ogm; | |
8644 | uint16_t bucket_list_len; | |
8645 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8646 | ||
8647 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8648 | gm->command = ntohs(ogm->command); | |
8649 | gm->type = ogm->type; | |
8650 | gm->group_id = ntohl(ogm->group_id); | |
8651 | ||
8652 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8653 | switch (gm->command) { | |
8654 | case OFPGC15_REMOVE_BUCKET: | |
8655 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8656 | error = 0; | |
8657 | } | |
8658 | /* Fall through */ | |
8659 | case OFPGC15_INSERT_BUCKET: | |
8660 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8661 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8662 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8663 | error = 0; | |
8664 | } | |
8665 | break; | |
8666 | ||
8667 | case OFPGC11_ADD: | |
8668 | case OFPGC11_MODIFY: | |
8669 | case OFPGC11_DELETE: | |
8670 | default: | |
8671 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8672 | error = 0; | |
8673 | } | |
8674 | break; | |
8675 | } | |
8676 | if (error) { | |
8677 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8678 | "group command bucket id (%u) is out of range", | |
8679 | gm->command_bucket_id); | |
8680 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8681 | } | |
8682 | ||
79870963 | 8683 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 8684 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 8685 | gm->type, &gm->buckets); |
bc65c25a SH |
8686 | if (error) { |
8687 | return error; | |
18ac06d3 SH |
8688 | } |
8689 | ||
bc65c25a SH |
8690 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
8691 | msg->size); | |
18ac06d3 SH |
8692 | } |
8693 | ||
7395c052 NZ |
8694 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8695 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8696 | enum ofperr | |
8697 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8698 | struct ofputil_group_mod *gm) | |
8699 | { | |
aead63f2 | 8700 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8701 | struct ofpbuf msg; |
e57681e5 SH |
8702 | struct ofputil_bucket *bucket; |
8703 | enum ofperr err; | |
7395c052 NZ |
8704 | |
8705 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8706 | ofpraw_pull_assert(&msg); | |
8707 | ||
bc65c25a SH |
8708 | ofputil_init_group_properties(&gm->props); |
8709 | ||
aead63f2 SH |
8710 | switch (ofp_version) |
8711 | { | |
8712 | case OFP11_VERSION: | |
8713 | case OFP12_VERSION: | |
8714 | case OFP13_VERSION: | |
8715 | case OFP14_VERSION: | |
aead63f2 SH |
8716 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8717 | break; | |
8718 | ||
18ac06d3 SH |
8719 | case OFP15_VERSION: |
8720 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8721 | break; | |
8722 | ||
aead63f2 SH |
8723 | case OFP10_VERSION: |
8724 | default: | |
8725 | OVS_NOT_REACHED(); | |
8726 | } | |
7395c052 | 8727 | |
e57681e5 SH |
8728 | if (err) { |
8729 | return err; | |
8730 | } | |
8731 | ||
e1799eb7 SH |
8732 | switch (gm->type) { |
8733 | case OFPGT11_INDIRECT: | |
8734 | if (!list_is_singleton(&gm->buckets)) { | |
290eada7 | 8735 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
8736 | } |
8737 | break; | |
8738 | case OFPGT11_ALL: | |
8739 | case OFPGT11_SELECT: | |
8740 | case OFPGT11_FF: | |
8741 | break; | |
8742 | default: | |
09d4b951 | 8743 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
8744 | } |
8745 | ||
8746 | switch (gm->command) { | |
8747 | case OFPGC11_ADD: | |
8748 | case OFPGC11_MODIFY: | |
8749 | case OFPGC11_DELETE: | |
8750 | case OFPGC15_INSERT_BUCKET: | |
8751 | break; | |
8752 | case OFPGC15_REMOVE_BUCKET: | |
8753 | if (!list_is_empty(&gm->buckets)) { | |
8754 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8755 | } | |
8756 | break; | |
8757 | default: | |
09d4b951 | 8758 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
8759 | } |
8760 | ||
e57681e5 | 8761 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
8762 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
8763 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8764 | } | |
8765 | ||
e57681e5 SH |
8766 | switch (gm->type) { |
8767 | case OFPGT11_ALL: | |
8768 | case OFPGT11_INDIRECT: | |
8769 | if (ofputil_bucket_has_liveness(bucket)) { | |
8770 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8771 | } | |
8772 | break; | |
8773 | case OFPGT11_SELECT: | |
8774 | break; | |
8775 | case OFPGT11_FF: | |
8776 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8777 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8778 | } | |
8779 | break; | |
8780 | default: | |
896313f3 FL |
8781 | /* Returning BAD TYPE to be consistent |
8782 | * though gm->type has been checked already. */ | |
8783 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
8784 | } |
8785 | } | |
8786 | ||
8787 | return 0; | |
7395c052 NZ |
8788 | } |
8789 | ||
64626975 SH |
8790 | /* Parse a queue status request message into 'oqsr'. |
8791 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8792 | enum ofperr | |
8793 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8794 | struct ofputil_queue_stats_request *oqsr) | |
8795 | { | |
8796 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8797 | case OFP15_VERSION: |
c37c0382 | 8798 | case OFP14_VERSION: |
2e1ae200 | 8799 | case OFP13_VERSION: |
64626975 SH |
8800 | case OFP12_VERSION: |
8801 | case OFP11_VERSION: { | |
8802 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8803 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8804 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8805 | } | |
8806 | ||
8807 | case OFP10_VERSION: { | |
7f05e7ab JR |
8808 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8809 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8810 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8811 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
8812 | if (oqsr->port_no == OFPP_ALL) { | |
8813 | oqsr->port_no = OFPP_ANY; | |
8814 | } | |
64626975 SH |
8815 | return 0; |
8816 | } | |
8817 | ||
8818 | default: | |
428b2edd | 8819 | OVS_NOT_REACHED(); |
64626975 SH |
8820 | } |
8821 | } | |
8822 | ||
0746a84f BP |
8823 | /* Encode a queue stats request for 'oqsr', the encoded message |
8824 | * will be for OpenFlow version 'ofp_version'. Returns message | |
8825 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
8826 | struct ofpbuf * |
8827 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
8828 | const struct ofputil_queue_stats_request *oqsr) | |
8829 | { | |
8830 | struct ofpbuf *request; | |
8831 | ||
8832 | switch (ofp_version) { | |
8833 | case OFP11_VERSION: | |
2e1ae200 | 8834 | case OFP12_VERSION: |
c37c0382 | 8835 | case OFP13_VERSION: |
42dccab5 BP |
8836 | case OFP14_VERSION: |
8837 | case OFP15_VERSION: { | |
64626975 SH |
8838 | struct ofp11_queue_stats_request *req; |
8839 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
8840 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8841 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
8842 | req->queue_id = htonl(oqsr->queue_id); | |
8843 | break; | |
8844 | } | |
8845 | case OFP10_VERSION: { | |
8846 | struct ofp10_queue_stats_request *req; | |
8847 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
8848 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 8849 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
8850 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
8851 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
8852 | req->queue_id = htonl(oqsr->queue_id); |
8853 | break; | |
8854 | } | |
8855 | default: | |
428b2edd | 8856 | OVS_NOT_REACHED(); |
64626975 SH |
8857 | } |
8858 | ||
8859 | return request; | |
8860 | } | |
8861 | ||
8862 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
8863 | * message 'oh'. */ | |
8864 | size_t | |
8865 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
8866 | { | |
1bb2cdbe | 8867 | struct ofputil_queue_stats qs; |
64626975 | 8868 | struct ofpbuf b; |
1bb2cdbe | 8869 | size_t n = 0; |
64626975 SH |
8870 | |
8871 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8872 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
8873 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
8874 | n++; | |
8875 | } | |
8876 | return n; | |
64626975 SH |
8877 | } |
8878 | ||
8879 | static enum ofperr | |
8880 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
8881 | const struct ofp10_queue_stats *qs10) | |
8882 | { | |
4e022ec0 | 8883 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 8884 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
8885 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
8886 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
8887 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
8888 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8889 | |
8890 | return 0; | |
8891 | } | |
8892 | ||
8893 | static enum ofperr | |
8894 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
8895 | const struct ofp11_queue_stats *qs11) | |
8896 | { | |
8897 | enum ofperr error; | |
8898 | ||
8899 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
8900 | if (error) { | |
8901 | return error; | |
8902 | } | |
8903 | ||
8904 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
8905 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
8906 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
8907 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
8908 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8909 | |
8910 | return 0; | |
8911 | } | |
8912 | ||
2e1ae200 JR |
8913 | static enum ofperr |
8914 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
8915 | const struct ofp13_queue_stats *qs13) | |
8916 | { | |
6dc34a0d | 8917 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 8918 | if (!error) { |
6dc34a0d BP |
8919 | oqs->duration_sec = ntohl(qs13->duration_sec); |
8920 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
8921 | } |
8922 | ||
8923 | return error; | |
8924 | } | |
8925 | ||
1bb2cdbe BP |
8926 | static enum ofperr |
8927 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
8928 | struct ofpbuf *msg) | |
8929 | { | |
8930 | const struct ofp14_queue_stats *qs14; | |
8931 | size_t len; | |
8932 | ||
8933 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
8934 | if (!qs14) { | |
8935 | return OFPERR_OFPBRC_BAD_LEN; | |
8936 | } | |
8937 | ||
8938 | len = ntohs(qs14->length); | |
6fd6ed71 | 8939 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
8940 | return OFPERR_OFPBRC_BAD_LEN; |
8941 | } | |
8942 | ofpbuf_pull(msg, len - sizeof *qs14); | |
8943 | ||
8944 | /* No properties yet defined, so ignore them for now. */ | |
8945 | ||
8946 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
8947 | } | |
8948 | ||
64626975 SH |
8949 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
8950 | * ofputil_queue_stats in 'qs'. | |
8951 | * | |
8952 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
8953 | * message. Calling this function multiple times for a single 'msg' iterates | |
8954 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8955 | * null and not modify them between calls. | |
8956 | * | |
8957 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8958 | * otherwise a positive errno value. */ | |
8959 | int | |
8960 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
8961 | { | |
8962 | enum ofperr error; | |
8963 | enum ofpraw raw; | |
8964 | ||
6fd6ed71 | 8965 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
8966 | : ofpraw_pull(&raw, msg)); |
8967 | if (error) { | |
8968 | return error; | |
8969 | } | |
8970 | ||
6fd6ed71 | 8971 | if (!msg->size) { |
64626975 | 8972 | return EOF; |
1bb2cdbe BP |
8973 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
8974 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
8975 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
8976 | const struct ofp13_queue_stats *qs13; | |
8977 | ||
8978 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
8979 | if (!qs13) { | |
8980 | goto bad_len; | |
8981 | } | |
8982 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
8983 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
8984 | const struct ofp11_queue_stats *qs11; | |
8985 | ||
8986 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
8987 | if (!qs11) { | |
2e1ae200 | 8988 | goto bad_len; |
64626975 SH |
8989 | } |
8990 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
8991 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
8992 | const struct ofp10_queue_stats *qs10; | |
8993 | ||
8994 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
8995 | if (!qs10) { | |
2e1ae200 | 8996 | goto bad_len; |
64626975 SH |
8997 | } |
8998 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
8999 | } else { | |
428b2edd | 9000 | OVS_NOT_REACHED(); |
64626975 | 9001 | } |
2e1ae200 JR |
9002 | |
9003 | bad_len: | |
437d0d22 | 9004 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9005 | "bytes at end", msg->size); |
2e1ae200 | 9006 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9007 | } |
9008 | ||
9009 | static void | |
9010 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9011 | struct ofp10_queue_stats *qs10) | |
9012 | { | |
4e022ec0 | 9013 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9014 | memset(qs10->pad, 0, sizeof qs10->pad); |
9015 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9016 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9017 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9018 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9019 | } |
9020 | ||
9021 | static void | |
9022 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9023 | struct ofp11_queue_stats *qs11) | |
9024 | { | |
9025 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9026 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9027 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9028 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9029 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9030 | } |
9031 | ||
2e1ae200 JR |
9032 | static void |
9033 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9034 | struct ofp13_queue_stats *qs13) | |
9035 | { | |
9036 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9037 | if (oqs->duration_sec != UINT32_MAX) { |
9038 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9039 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9040 | } else { | |
b8266395 BP |
9041 | qs13->duration_sec = OVS_BE32_MAX; |
9042 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9043 | } |
2e1ae200 JR |
9044 | } |
9045 | ||
1bb2cdbe BP |
9046 | static void |
9047 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9048 | struct ofp14_queue_stats *qs14) | |
9049 | { | |
9050 | qs14->length = htons(sizeof *qs14); | |
9051 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9052 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9053 | } | |
9054 | ||
9055 | ||
64626975 SH |
9056 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9057 | void | |
ca6ba700 | 9058 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9059 | const struct ofputil_queue_stats *oqs) |
9060 | { | |
e28ac5cf | 9061 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9062 | case OFP13_VERSION: { |
9063 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9064 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9065 | break; | |
9066 | } | |
9067 | ||
64626975 SH |
9068 | case OFP12_VERSION: |
9069 | case OFP11_VERSION: { | |
2e1ae200 | 9070 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9071 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9072 | break; | |
9073 | } | |
9074 | ||
9075 | case OFP10_VERSION: { | |
2e1ae200 | 9076 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9077 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9078 | break; | |
9079 | } | |
9080 | ||
42dccab5 BP |
9081 | case OFP14_VERSION: |
9082 | case OFP15_VERSION: { | |
1bb2cdbe BP |
9083 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9084 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9085 | break; |
1bb2cdbe | 9086 | } |
c37c0382 | 9087 | |
64626975 | 9088 | default: |
428b2edd | 9089 | OVS_NOT_REACHED(); |
64626975 SH |
9090 | } |
9091 | } | |
777af88d AC |
9092 | |
9093 | enum ofperr | |
9094 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9095 | struct ofputil_bundle_ctrl_msg *msg) | |
9096 | { | |
9097 | struct ofpbuf b; | |
9098 | enum ofpraw raw; | |
9099 | const struct ofp14_bundle_ctrl_msg *m; | |
9100 | ||
9101 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9102 | raw = ofpraw_pull_assert(&b); | |
9103 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
9104 | ||
6fd6ed71 | 9105 | m = b.msg; |
777af88d AC |
9106 | msg->bundle_id = ntohl(m->bundle_id); |
9107 | msg->type = ntohs(m->type); | |
9108 | msg->flags = ntohs(m->flags); | |
9109 | ||
9110 | return 0; | |
9111 | } | |
9112 | ||
db5076ee JR |
9113 | struct ofpbuf * |
9114 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9115 | struct ofputil_bundle_ctrl_msg *bc) | |
9116 | { | |
9117 | struct ofpbuf *request; | |
9118 | struct ofp14_bundle_ctrl_msg *m; | |
9119 | ||
9120 | switch (ofp_version) { | |
9121 | case OFP10_VERSION: | |
9122 | case OFP11_VERSION: | |
9123 | case OFP12_VERSION: | |
9124 | case OFP13_VERSION: | |
9125 | ovs_fatal(0, "bundles need OpenFlow 1.4 or later " | |
9126 | "(\'-O OpenFlow14\')"); | |
9127 | case OFP14_VERSION: | |
9128 | case OFP15_VERSION: | |
9129 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
9130 | m = ofpbuf_put_zeros(request, sizeof *m); | |
9131 | ||
9132 | m->bundle_id = htonl(bc->bundle_id); | |
9133 | m->type = htons(bc->type); | |
9134 | m->flags = htons(bc->flags); | |
9135 | break; | |
9136 | default: | |
9137 | OVS_NOT_REACHED(); | |
9138 | } | |
9139 | ||
9140 | return request; | |
9141 | } | |
9142 | ||
777af88d AC |
9143 | struct ofpbuf * |
9144 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9145 | struct ofputil_bundle_ctrl_msg *msg) | |
9146 | { | |
9147 | struct ofpbuf *buf; | |
9148 | struct ofp14_bundle_ctrl_msg *m; | |
9149 | ||
9150 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
9151 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
9152 | ||
9153 | m->bundle_id = htonl(msg->bundle_id); | |
9154 | m->type = htons(msg->type); | |
9155 | m->flags = htons(msg->flags); | |
9156 | ||
9157 | return buf; | |
9158 | } | |
9159 | ||
c25ce22d JR |
9160 | /* Return true for bundlable state change requests, false for other messages. |
9161 | */ | |
9162 | static bool | |
9163 | ofputil_is_bundlable(enum ofptype type) | |
9164 | { | |
9165 | switch (type) { | |
9166 | /* Minimum required by OpenFlow 1.4. */ | |
9167 | case OFPTYPE_PORT_MOD: | |
9168 | case OFPTYPE_FLOW_MOD: | |
9169 | return true; | |
9170 | ||
9171 | /* Nice to have later. */ | |
9172 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9173 | case OFPTYPE_GROUP_MOD: | |
9174 | case OFPTYPE_TABLE_MOD: | |
9175 | case OFPTYPE_METER_MOD: | |
9176 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9177 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9178 | |
9179 | /* Not to be bundlable. */ | |
9180 | case OFPTYPE_ECHO_REQUEST: | |
9181 | case OFPTYPE_FEATURES_REQUEST: | |
9182 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9183 | case OFPTYPE_SET_CONFIG: | |
9184 | case OFPTYPE_BARRIER_REQUEST: | |
9185 | case OFPTYPE_ROLE_REQUEST: | |
9186 | case OFPTYPE_ECHO_REPLY: | |
9187 | case OFPTYPE_SET_FLOW_FORMAT: | |
9188 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9189 | case OFPTYPE_SET_CONTROLLER_ID: | |
9190 | case OFPTYPE_FLOW_AGE: | |
9191 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9192 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9193 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9194 | case OFPTYPE_DESC_STATS_REQUEST: | |
9195 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9196 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9197 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9198 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9199 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9200 | case OFPTYPE_PORT_STATS_REQUEST: |
9201 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9202 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9203 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9204 | case OFPTYPE_METER_STATS_REQUEST: | |
9205 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9206 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9207 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9208 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9209 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9210 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9211 | case OFPTYPE_BUNDLE_CONTROL: | |
9212 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9213 | case OFPTYPE_HELLO: | |
9214 | case OFPTYPE_ERROR: | |
9215 | case OFPTYPE_FEATURES_REPLY: | |
9216 | case OFPTYPE_GET_CONFIG_REPLY: | |
9217 | case OFPTYPE_PACKET_IN: | |
9218 | case OFPTYPE_FLOW_REMOVED: | |
9219 | case OFPTYPE_PORT_STATUS: | |
9220 | case OFPTYPE_BARRIER_REPLY: | |
9221 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9222 | case OFPTYPE_DESC_STATS_REPLY: | |
9223 | case OFPTYPE_FLOW_STATS_REPLY: | |
9224 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9225 | case OFPTYPE_PORT_STATS_REPLY: | |
9226 | case OFPTYPE_TABLE_STATS_REPLY: | |
9227 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9228 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9229 | case OFPTYPE_ROLE_REPLY: | |
9230 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9231 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9232 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9233 | case OFPTYPE_GET_ASYNC_REPLY: | |
9234 | case OFPTYPE_GROUP_STATS_REPLY: | |
9235 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9236 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9237 | case OFPTYPE_METER_STATS_REPLY: | |
9238 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9239 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9240 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9241 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9242 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9243 | case OFPTYPE_REQUESTFORWARD: |
4e548ad9 ML |
9244 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9245 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
c25ce22d JR |
9246 | break; |
9247 | } | |
9248 | ||
9249 | return false; | |
9250 | } | |
9251 | ||
777af88d AC |
9252 | enum ofperr |
9253 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 JR |
9254 | struct ofputil_bundle_add_msg *msg, |
9255 | enum ofptype *type_ptr) | |
777af88d AC |
9256 | { |
9257 | const struct ofp14_bundle_ctrl_msg *m; | |
9258 | struct ofpbuf b; | |
9259 | enum ofpraw raw; | |
9260 | size_t inner_len; | |
c25ce22d JR |
9261 | enum ofperr error; |
9262 | enum ofptype type; | |
777af88d AC |
9263 | |
9264 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9265 | raw = ofpraw_pull_assert(&b); | |
9266 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
9267 | ||
9268 | m = ofpbuf_pull(&b, sizeof *m); | |
9269 | msg->bundle_id = ntohl(m->bundle_id); | |
9270 | msg->flags = ntohs(m->flags); | |
9271 | ||
6fd6ed71 | 9272 | msg->msg = b.data; |
46be7132 BP |
9273 | if (msg->msg->version != oh->version) { |
9274 | return OFPERR_NXBFC_BAD_VERSION; | |
9275 | } | |
777af88d | 9276 | inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9277 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9278 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9279 | } | |
be6f6393 JR |
9280 | if (msg->msg->xid != oh->xid) { |
9281 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9282 | } | |
777af88d | 9283 | |
c25ce22d | 9284 | /* Reject unbundlable messages. */ |
7ac27a04 JR |
9285 | if (!type_ptr) { |
9286 | type_ptr = &type; | |
9287 | } | |
9288 | error = ofptype_decode(type_ptr, msg->msg); | |
c25ce22d JR |
9289 | if (error) { |
9290 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9291 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9292 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9293 | } | |
9294 | ||
7ac27a04 | 9295 | if (!ofputil_is_bundlable(*type_ptr)) { |
44648b0f BP |
9296 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
9297 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(*type_ptr)); | |
c25ce22d JR |
9298 | return OFPERR_OFPBFC_MSG_UNSUP; |
9299 | } | |
9300 | ||
777af88d AC |
9301 | return 0; |
9302 | } | |
9303 | ||
9304 | struct ofpbuf * | |
9305 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9306 | struct ofputil_bundle_add_msg *msg) | |
9307 | { | |
9308 | struct ofpbuf *request; | |
9309 | struct ofp14_bundle_ctrl_msg *m; | |
9310 | ||
7b3dca89 JR |
9311 | /* Must use the same xid as the embedded message. */ |
9312 | request = ofpraw_alloc_xid(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
9313 | msg->msg->xid, 0); | |
777af88d AC |
9314 | m = ofpbuf_put_zeros(request, sizeof *m); |
9315 | ||
9316 | m->bundle_id = htonl(msg->bundle_id); | |
9317 | m->flags = htons(msg->flags); | |
9318 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9319 | ||
9320 | return request; | |
9321 | } | |
6159c531 JG |
9322 | |
9323 | static void | |
4e548ad9 | 9324 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9325 | { |
4e548ad9 | 9326 | struct ofputil_tlv_map *map; |
6159c531 JG |
9327 | |
9328 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9329 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9330 | |
9331 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9332 | nx_map->option_class = htons(map->option_class); | |
9333 | nx_map->option_type = map->option_type; | |
9334 | nx_map->option_len = map->option_len; | |
9335 | nx_map->index = htons(map->index); | |
9336 | } | |
9337 | } | |
9338 | ||
9339 | struct ofpbuf * | |
4e548ad9 ML |
9340 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9341 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9342 | { |
9343 | struct ofpbuf *b; | |
4e548ad9 | 9344 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9345 | |
4e548ad9 ML |
9346 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9347 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9348 | nx_ttm->command = htons(ttm->command); | |
9349 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9350 | |
9351 | return b; | |
9352 | } | |
9353 | ||
9354 | static enum ofperr | |
4e548ad9 | 9355 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9356 | struct ovs_list *mappings) |
6159c531 JG |
9357 | { |
9358 | list_init(mappings); | |
9359 | ||
9360 | while (msg->size) { | |
4e548ad9 ML |
9361 | struct nx_tlv_map *nx_map; |
9362 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9363 | |
9364 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9365 | map = xmalloc(sizeof *map); | |
9366 | list_push_back(mappings, &map->list_node); | |
9367 | ||
9368 | map->option_class = ntohs(nx_map->option_class); | |
9369 | map->option_type = nx_map->option_type; | |
9370 | ||
9371 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9372 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9373 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9374 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9375 | map->option_len); |
4e548ad9 ML |
9376 | ofputil_uninit_tlv_table(mappings); |
9377 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9378 | } |
9379 | ||
9380 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9381 | if (map->index >= max_fields) { |
6159c531 | 9382 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9383 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9384 | map->index, max_fields - 1); |
4e548ad9 ML |
9385 | ofputil_uninit_tlv_table(mappings); |
9386 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9387 | } |
9388 | } | |
9389 | ||
9390 | return 0; | |
9391 | } | |
9392 | ||
9393 | enum ofperr | |
4e548ad9 ML |
9394 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9395 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9396 | { |
9397 | struct ofpbuf msg; | |
4e548ad9 | 9398 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 JG |
9399 | |
9400 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9401 | ofpraw_pull_assert(&msg); | |
9402 | ||
4e548ad9 ML |
9403 | nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
9404 | ttm->command = ntohs(nx_ttm->command); | |
9405 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9406 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9407 | "tlv table mod command (%u) is out of range", |
9408 | ttm->command); | |
9409 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9410 | } |
9411 | ||
4e548ad9 ML |
9412 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9413 | &ttm->mappings); | |
6159c531 JG |
9414 | } |
9415 | ||
9416 | struct ofpbuf * | |
4e548ad9 ML |
9417 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9418 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9419 | { |
9420 | struct ofpbuf *b; | |
4e548ad9 | 9421 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9422 | |
4e548ad9 ML |
9423 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9424 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9425 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9426 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9427 | |
4e548ad9 | 9428 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9429 | |
9430 | return b; | |
9431 | } | |
9432 | ||
4e548ad9 | 9433 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9434 | * if successful, otherwise an ofperr. |
9435 | * | |
4e548ad9 ML |
9436 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9437 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9438 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9439 | enum ofperr |
4e548ad9 ML |
9440 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9441 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9442 | { |
9443 | struct ofpbuf msg; | |
4e548ad9 | 9444 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 JG |
9445 | |
9446 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9447 | ofpraw_pull_assert(&msg); | |
9448 | ||
4e548ad9 ML |
9449 | nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
9450 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); | |
9451 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9452 | |
4e548ad9 | 9453 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9454 | } |
9455 | ||
9456 | void | |
4e548ad9 | 9457 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9458 | { |
4e548ad9 | 9459 | struct ofputil_tlv_map *map; |
6159c531 JG |
9460 | |
9461 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9462 | free(map); | |
9463 | } | |
9464 | } | |
98090482 | 9465 | |
2da7974c BP |
9466 | const char * |
9467 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
9468 | { | |
9469 | switch (type) { | |
9470 | case OAM_PACKET_IN: return "PACKET_IN"; | |
9471 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
9472 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
9473 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
9474 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
9475 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
9476 | ||
9477 | case OAM_N_TYPES: | |
9478 | default: | |
9479 | OVS_NOT_REACHED(); | |
9480 | } | |
9481 | } | |
9482 | ||
8fd0bb60 BP |
9483 | struct ofp14_async_prop { |
9484 | uint64_t prop_type; | |
9485 | enum ofputil_async_msg_type oam; | |
9486 | bool master; | |
9487 | uint32_t allowed10, allowed14; | |
9488 | }; | |
9489 | ||
9490 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
9491 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
9492 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
9493 | ||
9494 | static const struct ofp14_async_prop async_props[] = { | |
9495 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
9496 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
9497 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
9498 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
9499 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
9500 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
9501 | }; | |
9502 | ||
9503 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
9504 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
9505 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
9506 | ||
9507 | static const struct ofp14_async_prop * | |
9508 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
9509 | { | |
9510 | FOR_EACH_ASYNC_PROP (ap) { | |
9511 | if (prop_type == ap->prop_type) { | |
9512 | return ap; | |
9513 | } | |
9514 | } | |
9515 | return NULL; | |
9516 | } | |
9517 | ||
9518 | static const struct ofp14_async_prop * | |
9519 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
9520 | bool master) | |
9521 | { | |
9522 | FOR_EACH_ASYNC_PROP (ap) { | |
9523 | if (ap->oam == oam && ap->master == master) { | |
9524 | return ap; | |
9525 | } | |
9526 | } | |
9527 | return NULL; | |
9528 | } | |
9529 | ||
9530 | static uint32_t | |
9531 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
9532 | enum ofp_version version) | |
9533 | { | |
9534 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
9535 | } | |
9536 | ||
9537 | static ovs_be32 | |
9538 | encode_async_mask(const struct ofputil_async_cfg *src, | |
9539 | const struct ofp14_async_prop *ap, | |
9540 | enum ofp_version version) | |
9541 | { | |
9542 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
9543 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
9544 | } | |
9545 | ||
9546 | static enum ofperr | |
9547 | decode_async_mask(ovs_be32 src, | |
9548 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
9549 | bool loose, struct ofputil_async_cfg *dst) | |
9550 | { | |
9551 | uint32_t mask = ntohl(src); | |
9552 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
9553 | if (mask & ~allowed) { | |
9554 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
9555 | "bad value %#x for %s (allowed mask %#x)", | |
9556 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
9557 | allowed); | |
9558 | mask &= allowed; | |
9559 | if (!loose) { | |
9560 | return OFPERR_OFPACFC_INVALID; | |
9561 | } | |
9562 | } | |
9563 | ||
9bfe9334 BP |
9564 | if (ap->oam == OAM_PACKET_IN) { |
9565 | if (mask & (1u << OFPR_NO_MATCH)) { | |
9566 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
9567 | if (version < OFP13_VERSION) { | |
9568 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
9569 | } | |
9570 | } | |
9571 | } | |
9572 | ||
8fd0bb60 BP |
9573 | uint32_t *array = ap->master ? dst->master : dst->slave; |
9574 | array[ap->oam] = mask; | |
9575 | return 0; | |
9576 | } | |
9577 | ||
9578 | static enum ofperr | |
9579 | parse_async_tlv(const struct ofpbuf *property, | |
9580 | const struct ofp14_async_prop *ap, | |
9581 | struct ofputil_async_cfg *ac, | |
9582 | enum ofp_version version, bool loose) | |
9583 | { | |
9584 | enum ofperr error; | |
9585 | ovs_be32 mask; | |
9586 | ||
9587 | error = ofpprop_parse_be32(property, &mask); | |
9588 | if (error) { | |
9589 | return error; | |
9590 | } | |
9591 | ||
9592 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
9593 | /* For experimenter properties, whether a property is for the master or | |
9594 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
9595 | * ofp_prop_experimenter. Check that these are consistent. */ | |
9596 | const struct ofp_prop_experimenter *ope = property->data; | |
9597 | bool should_be_master = ope->type == htons(0xffff); | |
9598 | if (should_be_master != ap->master) { | |
9599 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
9600 | "indicates %s role but exp_type %"PRIu32" indicates " | |
9601 | "%s role", | |
9602 | ntohs(ope->type), | |
9603 | should_be_master ? "master" : "slave", | |
9604 | ntohl(ope->exp_type), | |
9605 | ap->master ? "master" : "slave"); | |
9606 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
9607 | } | |
9608 | } | |
9609 | ||
9610 | return decode_async_mask(mask, ap, version, loose, ac); | |
9611 | } | |
9612 | ||
9613 | static void | |
9614 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
9615 | enum ofputil_async_msg_type oam, | |
9616 | enum ofp_version version, | |
9617 | struct ofputil_async_cfg *dst) | |
9618 | { | |
9619 | for (int i = 0; i < 2; i++) { | |
9620 | bool master = i == 0; | |
9621 | const struct ofp14_async_prop *ap | |
9622 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
9623 | decode_async_mask(masks[i], ap, version, true, dst); | |
9624 | } | |
9625 | } | |
9626 | ||
98090482 | 9627 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 9628 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 9629 | * |
5876b4db BP |
9630 | * Some versions of the "set async config" request change only some of the |
9631 | * settings and leave the others alone. This function uses 'basis' as the | |
9632 | * initial state for decoding these. Other versions of the request change all | |
9633 | * the settings; this function ignores 'basis' when decoding these. | |
9634 | * | |
98090482 NR |
9635 | * If 'loose' is true, this function ignores properties and values that it does |
9636 | * not understand, as a controller would want to do when interpreting | |
9637 | * capabilities provided by a switch. If 'loose' is false, this function | |
9638 | * treats unknown properties and values as an error, as a switch would want to | |
9639 | * do when interpreting a configuration request made by a controller. | |
9640 | * | |
d18cc1ee AA |
9641 | * Returns 0 if successful, otherwise an OFPERR_* value. |
9642 | * | |
9643 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
9644 | * the valid range of mask. | |
9645 | * | |
9646 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
9647 | * supported.*/ | |
98090482 | 9648 | enum ofperr |
a930d4c5 | 9649 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 9650 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 9651 | struct ofputil_async_cfg *ac) |
98090482 NR |
9652 | { |
9653 | enum ofpraw raw; | |
9654 | struct ofpbuf b; | |
9655 | ||
9656 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9657 | raw = ofpraw_pull_assert(&b); | |
9658 | ||
9659 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
9660 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
9661 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
9662 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
9663 | ||
5876b4db | 9664 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
9665 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
9666 | oh->version, ac); | |
9667 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
9668 | oh->version, ac); | |
9669 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
9670 | oh->version, ac); | |
98090482 | 9671 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
9672 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
9673 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 9674 | *ac = *basis; |
98090482 | 9675 | while (b.size > 0) { |
98090482 NR |
9676 | struct ofpbuf property; |
9677 | enum ofperr error; | |
34a543e3 | 9678 | uint64_t type; |
98090482 | 9679 | |
34a543e3 | 9680 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
9681 | if (error) { |
9682 | return error; | |
9683 | } | |
9684 | ||
8fd0bb60 BP |
9685 | const struct ofp14_async_prop *ap |
9686 | = get_ofp14_async_config_prop_by_prop_type(type); | |
9687 | error = (ap | |
9688 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
9689 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 9690 | if (error) { |
8fd0bb60 BP |
9691 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
9692 | * knows why, it's OpenFlow. */ | |
9693 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
9694 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 9695 | } |
98090482 NR |
9696 | return error; |
9697 | } | |
9698 | } | |
9699 | } else { | |
9700 | return OFPERR_OFPBRC_BAD_VERSION; | |
9701 | } | |
9702 | return 0; | |
9703 | } | |
9704 | ||
8fd0bb60 BP |
9705 | static void |
9706 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
9707 | enum ofputil_async_msg_type oam, | |
9708 | enum ofp_version version, | |
9709 | ovs_be32 masks[2]) | |
98090482 | 9710 | { |
8fd0bb60 BP |
9711 | for (int i = 0; i < 2; i++) { |
9712 | bool master = i == 0; | |
9713 | const struct ofp14_async_prop *ap | |
9714 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
9715 | masks[i] = encode_async_mask(ac, ap, version); | |
9716 | } | |
9717 | } | |
98090482 | 9718 | |
8fd0bb60 BP |
9719 | static void |
9720 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
9721 | struct ofpbuf *buf, bool tlv, | |
9722 | enum ofp_version version, uint32_t oams) | |
9723 | { | |
9724 | if (!tlv) { | |
9725 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9726 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
9727 | msg->packet_in_mask); | |
9728 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
9729 | msg->port_status_mask); | |
9730 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
9731 | msg->flow_removed_mask); | |
9732 | } else { | |
9733 | FOR_EACH_ASYNC_PROP (ap) { | |
9734 | if (oams & (1u << ap->oam)) { | |
9735 | size_t ofs = buf->size; | |
9736 | ofpprop_put_be32(buf, ap->prop_type, | |
9737 | encode_async_mask(ac, ap, version)); | |
9738 | ||
9739 | /* For experimenter properties, we need to use type 0xfffe for | |
9740 | * master and 0xffff for slaves. */ | |
9741 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
9742 | struct ofp_prop_experimenter *ope | |
9743 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
9744 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
9745 | } | |
9746 | } | |
98090482 | 9747 | } |
98090482 | 9748 | } |
98090482 NR |
9749 | } |
9750 | ||
8fd0bb60 BP |
9751 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
9752 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 9753 | struct ofpbuf * |
af7bc161 BP |
9754 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
9755 | const struct ofputil_async_cfg *ac) | |
98090482 NR |
9756 | { |
9757 | struct ofpbuf *buf; | |
98090482 | 9758 | |
8fd0bb60 BP |
9759 | enum ofpraw raw = (oh->version < OFP14_VERSION |
9760 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
9761 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
9762 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
9763 | ofputil_put_async_config__(ac, reply, | |
9764 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
9765 | oh->version, UINT32_MAX); | |
9766 | return reply; | |
98090482 NR |
9767 | |
9768 | return buf; | |
9769 | } | |
a930d4c5 | 9770 | |
af7bc161 BP |
9771 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
9772 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
9773 | * | |
9774 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
9775 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
9776 | * messages, so more messages than requested may be configured. OF1.0 through | |
9777 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
9778 | * any extensions then this function encodes an Open vSwitch extension message | |
9779 | * that does support configuring OVS extension OAM_*. */ | |
9780 | struct ofpbuf * | |
9781 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
9782 | uint32_t oams, enum ofp_version ofp_version) | |
9783 | { | |
9784 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
9785 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
9786 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
9787 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
9788 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
9789 | ofputil_put_async_config__(ac, request, | |
9790 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
9791 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
9792 | ofp_version, oams); | |
9793 | return request; | |
9794 | } | |
9795 | ||
a930d4c5 BP |
9796 | struct ofputil_async_cfg |
9797 | ofputil_async_cfg_default(enum ofp_version version) | |
9798 | { | |
9bfe9334 BP |
9799 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
9800 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
9801 | * introduced in OF1.0, breaking it into more specific categories. When we | |
9802 | * encode these for earlier OpenFlow versions, we translate them into | |
9803 | * OFPR_ACTION. */ | |
9804 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
9805 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
9806 | if (version <= OFP12_VERSION) { | |
9807 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
9808 | } | |
9809 | ||
a930d4c5 | 9810 | return (struct ofputil_async_cfg) { |
9bfe9334 | 9811 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
9812 | |
9813 | .master[OAM_FLOW_REMOVED] | |
9814 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
9815 | ||
9816 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
9817 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
9818 | }; | |
9819 | } |