]>
Commit | Line | Data |
---|---|---|
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" |
3e8a2ad1 | 29 | #include "openvswitch/dynamic-string.h" |
75a75043 | 30 | #include "learn.h" |
064d7f84 | 31 | #include "openvswitch/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" |
982697a4 | 37 | #include "ofp-msgs.h" |
c5562271 | 38 | #include "ofp-prop.h" |
f4248336 | 39 | #include "openvswitch/ofp-util.h" |
64c96779 | 40 | #include "openvswitch/ofpbuf.h" |
bc65c25a | 41 | #include "openflow/netronome-ext.h" |
fa37b408 | 42 | #include "packets.h" |
9bfe9334 | 43 | #include "pktbuf.h" |
fa37b408 | 44 | #include "random.h" |
6159c531 | 45 | #include "tun-metadata.h" |
4ffd1b43 | 46 | #include "unaligned.h" |
ae06a561 | 47 | #include "openvswitch/type-props.h" |
e03c096d | 48 | #include "openvswitch/ofp-errors.h" |
e6211adc | 49 | #include "openvswitch/vlog.h" |
5deff5aa | 50 | #include "bitmap.h" |
d5dc60f0 | 51 | #include "uuid.h" |
fa37b408 | 52 | |
d98e6007 | 53 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
54 | |
55 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
56 | * in the peer and so there's not much point in showing a lot of them. */ | |
57 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
58 | ||
de7d3c07 SJ |
59 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
60 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
61 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
62 | ovs_be32 config, enum ofp_version); | |
63 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
64 | enum ofputil_table_eviction, | |
de7d3c07 | 65 | enum ofputil_table_vacancy, |
82c22d34 | 66 | enum ofp_version); |
3c1bb396 | 67 | |
0596e897 BP |
68 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
69 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
70 | * is wildcarded. | |
71 | * | |
72 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
73 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
74 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
75 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
76 | * wildcarded. */ | |
77 | ovs_be32 | |
78 | ofputil_wcbits_to_netmask(int wcbits) | |
79 | { | |
80 | wcbits &= 0x3f; | |
81 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
82 | } | |
83 | ||
84 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
85 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
86 | * between 0 and 32 inclusive. | |
87 | * | |
88 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
89 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
90 | int |
91 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
92 | { | |
aad29cd1 | 93 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
94 | } |
95 | ||
eec25dc1 | 96 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 97 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
98 | * responsibility to handle the special case where the flow match's dl_vlan is |
99 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 100 | void |
eec25dc1 | 101 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 102 | { |
ffe4c74f | 103 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 104 | |
81a76618 | 105 | /* Initialize most of wc. */ |
f9ba8dad | 106 | flow_wildcards_init_catchall(wc); |
bad68a99 | 107 | |
0bdc4bec | 108 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 109 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 110 | } |
5d9499c4 BP |
111 | |
112 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 113 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 114 | } |
7257b535 | 115 | |
851d3105 | 116 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 117 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 118 | } |
26720e24 BP |
119 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
120 | >> OFPFW10_NW_SRC_SHIFT); | |
121 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
122 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 123 | |
eec25dc1 | 124 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 125 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 126 | } |
eec25dc1 | 127 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 128 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
129 | } |
130 | ||
eec25dc1 | 131 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 132 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 133 | } |
eec25dc1 | 134 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 135 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 136 | } |
e2170cff | 137 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 138 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 139 | } |
d8ae4d67 | 140 | |
eb6f28db | 141 | /* VLAN TCI mask. */ |
eec25dc1 | 142 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 143 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 144 | } |
eec25dc1 | 145 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 146 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
147 | } |
148 | } | |
149 | ||
81a76618 | 150 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 151 | void |
81a76618 BP |
152 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
153 | struct match *match) | |
154 | { | |
155 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
156 | ||
157 | /* Initialize match->wc. */ | |
296e07ac | 158 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
159 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
160 | ||
161 | /* Initialize most of match->flow. */ | |
162 | match->flow.nw_src = ofmatch->nw_src; | |
163 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 164 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
165 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
166 | match->flow.tp_src = ofmatch->tp_src; | |
167 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
168 | match->flow.dl_src = ofmatch->dl_src; |
169 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
170 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
171 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 172 | |
66642cb4 | 173 | /* Translate VLANs. */ |
0c436519 | 174 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 175 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
176 | /* Match only packets without 802.1Q header. |
177 | * | |
eec25dc1 | 178 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 179 | * |
eec25dc1 | 180 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
181 | * because we can't have a specific PCP without an 802.1Q header. |
182 | * However, older versions of OVS treated this as matching packets | |
183 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
184 | match->flow.vlan_tci = htons(0); |
185 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
186 | } else { |
187 | ovs_be16 vid, pcp, tci; | |
bf062576 | 188 | uint16_t hpcp; |
47271d0d | 189 | |
81a76618 | 190 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
191 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
192 | pcp = htons(hpcp); | |
47271d0d | 193 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 194 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
195 | } |
196 | ||
d8ae4d67 | 197 | /* Clean up. */ |
81a76618 | 198 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
199 | } |
200 | ||
81a76618 | 201 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 202 | void |
81a76618 BP |
203 | ofputil_match_to_ofp10_match(const struct match *match, |
204 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 205 | { |
81a76618 | 206 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 207 | uint32_t ofpfw; |
d8ae4d67 | 208 | |
66642cb4 | 209 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 210 | ofpfw = 0; |
4e022ec0 | 211 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
212 | ofpfw |= OFPFW10_IN_PORT; |
213 | } | |
26720e24 | 214 | if (!wc->masks.dl_type) { |
27cafc5f BP |
215 | ofpfw |= OFPFW10_DL_TYPE; |
216 | } | |
26720e24 | 217 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
218 | ofpfw |= OFPFW10_NW_PROTO; |
219 | } | |
26720e24 | 220 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 221 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 222 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 223 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 224 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 225 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 226 | } |
26720e24 | 227 | if (!wc->masks.tp_src) { |
eec25dc1 | 228 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 229 | } |
26720e24 | 230 | if (!wc->masks.tp_dst) { |
eec25dc1 | 231 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 232 | } |
26720e24 | 233 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 234 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 235 | } |
26720e24 | 236 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 237 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 238 | } |
ff9d3826 | 239 | |
66642cb4 | 240 | /* Translate VLANs. */ |
81a76618 BP |
241 | ofmatch->dl_vlan = htons(0); |
242 | ofmatch->dl_vlan_pcp = 0; | |
243 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 244 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
245 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
246 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
247 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 248 | } else { |
81a76618 | 249 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 250 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 251 | } else { |
81a76618 | 252 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
253 | } |
254 | ||
81a76618 | 255 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 256 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 257 | } else { |
81a76618 | 258 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
259 | } |
260 | } | |
261 | ||
262 | /* Compose most of the match structure. */ | |
81a76618 | 263 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 264 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
265 | ofmatch->dl_src = match->flow.dl_src; |
266 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
267 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
268 | ofmatch->nw_src = match->flow.nw_src; | |
269 | ofmatch->nw_dst = match->flow.nw_dst; | |
270 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
271 | ofmatch->nw_proto = match->flow.nw_proto; | |
272 | ofmatch->tp_src = match->flow.tp_src; | |
273 | ofmatch->tp_dst = match->flow.tp_dst; | |
274 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
275 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
276 | } |
277 | ||
aa319503 | 278 | enum ofperr |
81a76618 BP |
279 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
280 | uint16_t *padded_match_len) | |
aa319503 | 281 | { |
6fd6ed71 | 282 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 283 | uint16_t match_len; |
aa319503 | 284 | |
6fd6ed71 | 285 | if (buf->size < sizeof *omh) { |
aa319503 BP |
286 | return OFPERR_OFPBMC_BAD_LEN; |
287 | } | |
288 | ||
36a16881 SH |
289 | match_len = ntohs(omh->length); |
290 | ||
aa319503 | 291 | switch (ntohs(omh->type)) { |
36a16881 SH |
292 | case OFPMT_STANDARD: { |
293 | struct ofp11_match *om; | |
294 | ||
6fd6ed71 | 295 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
296 | return OFPERR_OFPBMC_BAD_LEN; |
297 | } | |
298 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
299 | if (padded_match_len) { |
300 | *padded_match_len = match_len; | |
301 | } | |
81a76618 | 302 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
303 | } |
304 | ||
305 | case OFPMT_OXM: | |
306 | if (padded_match_len) { | |
307 | *padded_match_len = ROUND_UP(match_len, 8); | |
308 | } | |
81a76618 | 309 | return oxm_pull_match(buf, match); |
aa319503 BP |
310 | |
311 | default: | |
312 | return OFPERR_OFPBMC_BAD_TYPE; | |
313 | } | |
314 | } | |
315 | ||
3f0f48cf YT |
316 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
317 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 318 | enum ofperr |
81a76618 BP |
319 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
320 | struct match *match) | |
410698cf | 321 | { |
81a76618 | 322 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 323 | bool ipv4, arp, rarp; |
410698cf | 324 | |
81a76618 | 325 | match_init_catchall(match); |
410698cf BP |
326 | |
327 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 328 | ofp_port_t ofp_port; |
410698cf BP |
329 | enum ofperr error; |
330 | ||
81a76618 | 331 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
332 | if (error) { |
333 | return OFPERR_OFPBMC_BAD_VALUE; | |
334 | } | |
81a76618 | 335 | match_set_in_port(match, ofp_port); |
410698cf BP |
336 | } |
337 | ||
74ff3298 JR |
338 | match_set_dl_src_masked(match, ofmatch->dl_src, |
339 | eth_addr_invert(ofmatch->dl_src_mask)); | |
340 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
341 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
342 | |
343 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 344 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 345 | /* Match only packets without a VLAN tag. */ |
81a76618 | 346 | match->flow.vlan_tci = htons(0); |
b8266395 | 347 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 348 | } else { |
81a76618 | 349 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 350 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
351 | match->flow.vlan_tci = htons(VLAN_CFI); |
352 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
353 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 354 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
355 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
356 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
357 | } else { |
358 | /* Invalid VID. */ | |
359 | return OFPERR_OFPBMC_BAD_VALUE; | |
360 | } | |
361 | ||
362 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
363 | if (ofmatch->dl_vlan_pcp <= 7) { |
364 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
365 | << VLAN_PCP_SHIFT); | |
366 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
367 | } else { |
368 | /* Invalid PCP. */ | |
369 | return OFPERR_OFPBMC_BAD_VALUE; | |
370 | } | |
371 | } | |
372 | } | |
373 | } | |
374 | ||
375 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
376 | match_set_dl_type(match, |
377 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
378 | } |
379 | ||
81a76618 BP |
380 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
381 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 382 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
383 | |
384 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 385 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
386 | /* Invalid TOS. */ |
387 | return OFPERR_OFPBMC_BAD_VALUE; | |
388 | } | |
389 | ||
81a76618 | 390 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
391 | } |
392 | ||
8087f5ff | 393 | if (ipv4 || arp || rarp) { |
410698cf | 394 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 395 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 396 | } |
81a76618 BP |
397 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
398 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
399 | } |
400 | ||
401 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
402 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 403 | switch (match->flow.nw_proto) { |
410698cf BP |
404 | case IPPROTO_ICMP: |
405 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
406 | * | |
407 | * The tp_src and tp_dst fields will be ignored unless the | |
408 | * network protocol specified is as TCP, UDP or SCTP. | |
409 | * | |
410 | * but I'm pretty sure we should support ICMP too, otherwise | |
411 | * that's a regression from OF1.0. */ | |
412 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 413 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 414 | if (icmp_type < 0x100) { |
81a76618 | 415 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
416 | } else { |
417 | return OFPERR_OFPBMC_BAD_FIELD; | |
418 | } | |
419 | } | |
420 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 421 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 422 | if (icmp_code < 0x100) { |
81a76618 | 423 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
424 | } else { |
425 | return OFPERR_OFPBMC_BAD_FIELD; | |
426 | } | |
427 | } | |
428 | break; | |
429 | ||
430 | case IPPROTO_TCP: | |
431 | case IPPROTO_UDP: | |
0d56eaf2 | 432 | case IPPROTO_SCTP: |
410698cf | 433 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 434 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
435 | } |
436 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 437 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
438 | } |
439 | break; | |
440 | ||
410698cf BP |
441 | default: |
442 | /* OF1.1 says explicitly to ignore this. */ | |
443 | break; | |
444 | } | |
445 | } | |
446 | ||
b02475c5 | 447 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 448 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 449 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
450 | } |
451 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 452 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
453 | } |
454 | } | |
455 | ||
81a76618 BP |
456 | match_set_metadata_masked(match, ofmatch->metadata, |
457 | ~ofmatch->metadata_mask); | |
410698cf BP |
458 | |
459 | return 0; | |
460 | } | |
461 | ||
81a76618 | 462 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 463 | void |
81a76618 BP |
464 | ofputil_match_to_ofp11_match(const struct match *match, |
465 | struct ofp11_match *ofmatch) | |
410698cf BP |
466 | { |
467 | uint32_t wc = 0; | |
410698cf | 468 | |
81a76618 BP |
469 | memset(ofmatch, 0, sizeof *ofmatch); |
470 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
471 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 472 | |
4e022ec0 | 473 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
474 | wc |= OFPFW11_IN_PORT; |
475 | } else { | |
4e022ec0 | 476 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
477 | } |
478 | ||
74ff3298 JR |
479 | ofmatch->dl_src = match->flow.dl_src; |
480 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
481 | ofmatch->dl_dst = match->flow.dl_dst; | |
482 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 483 | |
81a76618 | 484 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 485 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
486 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
487 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
488 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
489 | wc |= OFPFW11_DL_VLAN_PCP; |
490 | } else { | |
81a76618 BP |
491 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
492 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 493 | } else { |
81a76618 | 494 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
495 | } |
496 | ||
81a76618 | 497 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
498 | wc |= OFPFW11_DL_VLAN_PCP; |
499 | } else { | |
81a76618 | 500 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
501 | } |
502 | } | |
503 | ||
81a76618 | 504 | if (!match->wc.masks.dl_type) { |
410698cf BP |
505 | wc |= OFPFW11_DL_TYPE; |
506 | } else { | |
81a76618 | 507 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
508 | } |
509 | ||
81a76618 | 510 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
511 | wc |= OFPFW11_NW_TOS; |
512 | } else { | |
81a76618 | 513 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
514 | } |
515 | ||
81a76618 | 516 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
517 | wc |= OFPFW11_NW_PROTO; |
518 | } else { | |
81a76618 | 519 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
520 | } |
521 | ||
81a76618 BP |
522 | ofmatch->nw_src = match->flow.nw_src; |
523 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
524 | ofmatch->nw_dst = match->flow.nw_dst; | |
525 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 526 | |
81a76618 | 527 | if (!match->wc.masks.tp_src) { |
410698cf BP |
528 | wc |= OFPFW11_TP_SRC; |
529 | } else { | |
81a76618 | 530 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
531 | } |
532 | ||
81a76618 | 533 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
534 | wc |= OFPFW11_TP_DST; |
535 | } else { | |
81a76618 | 536 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
537 | } |
538 | ||
8bfd0fda | 539 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
540 | wc |= OFPFW11_MPLS_LABEL; |
541 | } else { | |
8bfd0fda BP |
542 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
543 | match->flow.mpls_lse[0])); | |
097d4939 JR |
544 | } |
545 | ||
8bfd0fda | 546 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
547 | wc |= OFPFW11_MPLS_TC; |
548 | } else { | |
8bfd0fda | 549 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 550 | } |
410698cf | 551 | |
81a76618 BP |
552 | ofmatch->metadata = match->flow.metadata; |
553 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 554 | |
81a76618 | 555 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
556 | } |
557 | ||
75fa58f8 BP |
558 | /* Returns the "typical" length of a match for 'protocol', for use in |
559 | * estimating space to preallocate. */ | |
560 | int | |
561 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
562 | { | |
563 | switch (protocol) { | |
564 | case OFPUTIL_P_OF10_STD: | |
565 | case OFPUTIL_P_OF10_STD_TID: | |
566 | return sizeof(struct ofp10_match); | |
567 | ||
568 | case OFPUTIL_P_OF10_NXM: | |
569 | case OFPUTIL_P_OF10_NXM_TID: | |
570 | return NXM_TYPICAL_LEN; | |
571 | ||
572 | case OFPUTIL_P_OF11_STD: | |
573 | return sizeof(struct ofp11_match); | |
574 | ||
575 | case OFPUTIL_P_OF12_OXM: | |
576 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 577 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 578 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
579 | return NXM_TYPICAL_LEN; |
580 | ||
581 | default: | |
428b2edd | 582 | OVS_NOT_REACHED(); |
75fa58f8 BP |
583 | } |
584 | } | |
585 | ||
586 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
587 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
588 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
589 | * in OpenFlow 1.1 or later. | |
590 | * | |
591 | * This function can cause 'b''s data to be reallocated. | |
592 | * | |
593 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
594 | * returns zero. */ | |
595 | int | |
596 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
597 | enum ofputil_protocol protocol) | |
598 | { | |
599 | switch (protocol) { | |
600 | case OFPUTIL_P_OF10_STD: | |
601 | case OFPUTIL_P_OF10_STD_TID: | |
602 | case OFPUTIL_P_OF10_NXM: | |
603 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 604 | OVS_NOT_REACHED(); |
75fa58f8 BP |
605 | |
606 | case OFPUTIL_P_OF11_STD: { | |
607 | struct ofp11_match *om; | |
608 | ||
609 | /* Make sure that no padding is needed. */ | |
610 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
611 | ||
612 | om = ofpbuf_put_uninit(b, sizeof *om); | |
613 | ofputil_match_to_ofp11_match(match, om); | |
614 | return sizeof *om; | |
615 | } | |
616 | ||
617 | case OFPUTIL_P_OF12_OXM: | |
618 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 619 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 620 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
621 | return oxm_put_match(b, match, |
622 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
623 | } |
624 | ||
428b2edd | 625 | OVS_NOT_REACHED(); |
75fa58f8 BP |
626 | } |
627 | ||
36956a7d | 628 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
629 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
630 | * structure. */ | |
36956a7d BP |
631 | ovs_be16 |
632 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
633 | { | |
634 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
635 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
636 | : flow_dl_type); | |
637 | } | |
638 | ||
eec25dc1 | 639 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
640 | * structure, returns the corresponding 'dl_type' value for use in struct |
641 | * flow. */ | |
642 | ovs_be16 | |
643 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
644 | { | |
645 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
646 | ? htons(FLOW_DL_TYPE_NONE) | |
647 | : ofp_dl_type); | |
648 | } | |
2e4f5fcf | 649 | \f |
27527aa0 | 650 | /* Protocols. */ |
7fa91113 | 651 | |
27527aa0 BP |
652 | struct proto_abbrev { |
653 | enum ofputil_protocol protocol; | |
654 | const char *name; | |
655 | }; | |
656 | ||
657 | /* Most users really don't care about some of the differences between | |
aa233d57 | 658 | * protocols. These abbreviations help with that. */ |
27527aa0 | 659 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
660 | { OFPUTIL_P_ANY, "any" }, |
661 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
662 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
663 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
664 | }; |
665 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
666 | ||
667 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 668 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 669 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 670 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 671 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 672 | OFPUTIL_P_OF11_STD, |
85813857 BP |
673 | OFPUTIL_P_OF10_NXM, |
674 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
675 | }; |
676 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
677 | ||
4f13da56 BP |
678 | /* Returns the set of ofputil_protocols that are supported with the given |
679 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
680 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
681 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 682 | enum ofputil_protocol |
4f13da56 | 683 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
684 | { |
685 | switch (version) { | |
2e3fa633 | 686 | case OFP10_VERSION: |
4f13da56 | 687 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
688 | case OFP11_VERSION: |
689 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 690 | case OFP12_VERSION: |
85813857 | 691 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
692 | case OFP13_VERSION: |
693 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
694 | case OFP14_VERSION: |
695 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
696 | case OFP15_VERSION: |
697 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
698 | default: |
699 | return 0; | |
27527aa0 BP |
700 | } |
701 | } | |
702 | ||
4f13da56 BP |
703 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
704 | * connection that has negotiated the given 'version'. 'version' should | |
705 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
706 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
707 | * outside the valid range. */ | |
708 | enum ofputil_protocol | |
709 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
710 | { | |
711 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
712 | } | |
713 | ||
44d3732d | 714 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 715 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 716 | enum ofp_version |
9e1fd49b BP |
717 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
718 | { | |
719 | switch (protocol) { | |
85813857 BP |
720 | case OFPUTIL_P_OF10_STD: |
721 | case OFPUTIL_P_OF10_STD_TID: | |
722 | case OFPUTIL_P_OF10_NXM: | |
723 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 724 | return OFP10_VERSION; |
75fa58f8 BP |
725 | case OFPUTIL_P_OF11_STD: |
726 | return OFP11_VERSION; | |
85813857 | 727 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 728 | return OFP12_VERSION; |
2e1ae200 JR |
729 | case OFPUTIL_P_OF13_OXM: |
730 | return OFP13_VERSION; | |
c37c0382 AC |
731 | case OFPUTIL_P_OF14_OXM: |
732 | return OFP14_VERSION; | |
42dccab5 BP |
733 | case OFPUTIL_P_OF15_OXM: |
734 | return OFP15_VERSION; | |
9e1fd49b BP |
735 | } |
736 | ||
428b2edd | 737 | OVS_NOT_REACHED(); |
9e1fd49b BP |
738 | } |
739 | ||
4f13da56 BP |
740 | /* Returns a bitmap of OpenFlow versions that are supported by at |
741 | * least one of the 'protocols'. */ | |
742 | uint32_t | |
743 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
744 | { | |
745 | uint32_t bitmap = 0; | |
746 | ||
747 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
748 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
749 | ||
750 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
751 | } | |
752 | ||
753 | return bitmap; | |
754 | } | |
755 | ||
756 | /* Returns the set of protocols that are supported on top of the | |
757 | * OpenFlow versions included in 'bitmap'. */ | |
758 | enum ofputil_protocol | |
759 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
760 | { | |
761 | enum ofputil_protocol protocols = 0; | |
762 | ||
763 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
764 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
765 | ||
766 | protocols |= ofputil_protocols_from_ofp_version(version); | |
767 | } | |
768 | ||
769 | return protocols; | |
770 | } | |
771 | ||
27527aa0 BP |
772 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
773 | * otherwise. */ | |
7fa91113 | 774 | bool |
27527aa0 | 775 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 776 | { |
27527aa0 BP |
777 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
778 | } | |
779 | ||
780 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
781 | * extension turned on or off if 'enable' is true or false, respectively. | |
782 | * | |
783 | * This extension is only useful for protocols whose "standard" version does | |
784 | * not allow specific tables to be modified. In particular, this is true of | |
785 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
786 | * specifies a table ID and so there is no need for such an extension. When | |
787 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
788 | * extension, this function just returns its 'protocol' argument unchanged | |
789 | * regardless of the value of 'enable'. */ | |
790 | enum ofputil_protocol | |
791 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
792 | { | |
793 | switch (protocol) { | |
85813857 BP |
794 | case OFPUTIL_P_OF10_STD: |
795 | case OFPUTIL_P_OF10_STD_TID: | |
796 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 797 | |
85813857 BP |
798 | case OFPUTIL_P_OF10_NXM: |
799 | case OFPUTIL_P_OF10_NXM_TID: | |
800 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 801 | |
75fa58f8 BP |
802 | case OFPUTIL_P_OF11_STD: |
803 | return OFPUTIL_P_OF11_STD; | |
804 | ||
85813857 BP |
805 | case OFPUTIL_P_OF12_OXM: |
806 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 807 | |
2e1ae200 JR |
808 | case OFPUTIL_P_OF13_OXM: |
809 | return OFPUTIL_P_OF13_OXM; | |
810 | ||
c37c0382 AC |
811 | case OFPUTIL_P_OF14_OXM: |
812 | return OFPUTIL_P_OF14_OXM; | |
813 | ||
42dccab5 BP |
814 | case OFPUTIL_P_OF15_OXM: |
815 | return OFPUTIL_P_OF15_OXM; | |
816 | ||
27527aa0 | 817 | default: |
428b2edd | 818 | OVS_NOT_REACHED(); |
7fa91113 | 819 | } |
27527aa0 | 820 | } |
7fa91113 | 821 | |
27527aa0 BP |
822 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
823 | * some extension to a standard protocol version, the return value is the | |
824 | * standard version of that protocol without any extension. If 'protocol' is a | |
825 | * standard protocol version, returns 'protocol' unchanged. */ | |
826 | enum ofputil_protocol | |
827 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
828 | { | |
829 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
830 | } |
831 | ||
27527aa0 BP |
832 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
833 | enum ofputil_protocol | |
834 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
835 | enum ofputil_protocol new_base) | |
7fa91113 | 836 | { |
27527aa0 BP |
837 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
838 | ||
839 | switch (new_base) { | |
85813857 BP |
840 | case OFPUTIL_P_OF10_STD: |
841 | case OFPUTIL_P_OF10_STD_TID: | |
842 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 843 | |
85813857 BP |
844 | case OFPUTIL_P_OF10_NXM: |
845 | case OFPUTIL_P_OF10_NXM_TID: | |
846 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 847 | |
75fa58f8 BP |
848 | case OFPUTIL_P_OF11_STD: |
849 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
850 | ||
85813857 BP |
851 | case OFPUTIL_P_OF12_OXM: |
852 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 853 | |
2e1ae200 JR |
854 | case OFPUTIL_P_OF13_OXM: |
855 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
856 | ||
c37c0382 AC |
857 | case OFPUTIL_P_OF14_OXM: |
858 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
859 | ||
42dccab5 BP |
860 | case OFPUTIL_P_OF15_OXM: |
861 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
862 | ||
7fa91113 | 863 | default: |
428b2edd | 864 | OVS_NOT_REACHED(); |
7fa91113 BP |
865 | } |
866 | } | |
867 | ||
27527aa0 BP |
868 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
869 | * 'protocol' is either a single protocol or it is a combination of protocols | |
870 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
871 | const char * | |
872 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 873 | { |
27527aa0 BP |
874 | const struct proto_abbrev *p; |
875 | ||
876 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
877 | * warning if we forget any. */ | |
878 | switch (protocol) { | |
85813857 | 879 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
880 | return "NXM-table_id"; |
881 | ||
85813857 | 882 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
883 | return "NXM+table_id"; |
884 | ||
85813857 | 885 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
886 | return "OpenFlow10-table_id"; |
887 | ||
85813857 | 888 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 889 | return "OpenFlow10+table_id"; |
44d3732d | 890 | |
75fa58f8 BP |
891 | case OFPUTIL_P_OF11_STD: |
892 | return "OpenFlow11"; | |
893 | ||
85813857 | 894 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 895 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
896 | |
897 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 898 | return "OXM-OpenFlow13"; |
c37c0382 AC |
899 | |
900 | case OFPUTIL_P_OF14_OXM: | |
901 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
902 | |
903 | case OFPUTIL_P_OF15_OXM: | |
904 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
905 | } |
906 | ||
907 | /* Check abbreviations. */ | |
908 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
909 | if (protocol == p->protocol) { | |
910 | return p->name; | |
911 | } | |
912 | } | |
913 | ||
914 | return NULL; | |
915 | } | |
916 | ||
917 | /* Returns a string that represents 'protocols'. The return value might be a | |
918 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
919 | * value is "none" if 'protocols' is 0. | |
920 | * | |
921 | * The caller must free the returned string (with free()). */ | |
922 | char * | |
923 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
924 | { | |
925 | struct ds s; | |
926 | ||
cb22974d | 927 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
928 | if (protocols == 0) { |
929 | return xstrdup("none"); | |
930 | } | |
931 | ||
932 | ds_init(&s); | |
933 | while (protocols) { | |
934 | const struct proto_abbrev *p; | |
935 | int i; | |
936 | ||
937 | if (s.length) { | |
938 | ds_put_char(&s, ','); | |
939 | } | |
940 | ||
941 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
942 | if ((protocols & p->protocol) == p->protocol) { | |
943 | ds_put_cstr(&s, p->name); | |
944 | protocols &= ~p->protocol; | |
945 | goto match; | |
946 | } | |
947 | } | |
948 | ||
949 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
950 | enum ofputil_protocol bit = 1u << i; | |
951 | ||
952 | if (protocols & bit) { | |
953 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
954 | protocols &= ~bit; | |
955 | goto match; | |
956 | } | |
957 | } | |
428b2edd | 958 | OVS_NOT_REACHED(); |
27527aa0 BP |
959 | |
960 | match: ; | |
961 | } | |
962 | return ds_steal_cstr(&s); | |
963 | } | |
964 | ||
965 | static enum ofputil_protocol | |
966 | ofputil_protocol_from_string__(const char *s, size_t n) | |
967 | { | |
968 | const struct proto_abbrev *p; | |
969 | int i; | |
970 | ||
971 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
972 | enum ofputil_protocol bit = 1u << i; | |
973 | const char *name = ofputil_protocol_to_string(bit); | |
974 | ||
975 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
976 | return bit; | |
977 | } | |
978 | } | |
979 | ||
980 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
981 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
982 | return p->protocol; | |
983 | } | |
984 | } | |
985 | ||
986 | return 0; | |
987 | } | |
988 | ||
989 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
990 | * single protocol name or abbreviation or a comma-separated list of them. | |
991 | * | |
992 | * Aborts the program with an error message if 's' is invalid. */ | |
993 | enum ofputil_protocol | |
994 | ofputil_protocols_from_string(const char *s) | |
995 | { | |
996 | const char *orig_s = s; | |
997 | enum ofputil_protocol protocols; | |
998 | ||
999 | protocols = 0; | |
1000 | while (*s) { | |
1001 | enum ofputil_protocol p; | |
1002 | size_t n; | |
1003 | ||
1004 | n = strcspn(s, ","); | |
1005 | if (n == 0) { | |
1006 | s++; | |
1007 | continue; | |
1008 | } | |
1009 | ||
1010 | p = ofputil_protocol_from_string__(s, n); | |
1011 | if (!p) { | |
1012 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1013 | } | |
1014 | protocols |= p; | |
1015 | ||
1016 | s += n; | |
1017 | } | |
1018 | ||
1019 | if (!protocols) { | |
1020 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1021 | } | |
1022 | return protocols; | |
88ca35ee BP |
1023 | } |
1024 | ||
9d84066c | 1025 | enum ofp_version |
03e1125c SH |
1026 | ofputil_version_from_string(const char *s) |
1027 | { | |
1028 | if (!strcasecmp(s, "OpenFlow10")) { | |
1029 | return OFP10_VERSION; | |
1030 | } | |
1031 | if (!strcasecmp(s, "OpenFlow11")) { | |
1032 | return OFP11_VERSION; | |
1033 | } | |
1034 | if (!strcasecmp(s, "OpenFlow12")) { | |
1035 | return OFP12_VERSION; | |
1036 | } | |
2e1ae200 JR |
1037 | if (!strcasecmp(s, "OpenFlow13")) { |
1038 | return OFP13_VERSION; | |
1039 | } | |
c37c0382 AC |
1040 | if (!strcasecmp(s, "OpenFlow14")) { |
1041 | return OFP14_VERSION; | |
1042 | } | |
42dccab5 BP |
1043 | if (!strcasecmp(s, "OpenFlow15")) { |
1044 | return OFP15_VERSION; | |
1045 | } | |
7beaa082 | 1046 | return 0; |
03e1125c SH |
1047 | } |
1048 | ||
1049 | static bool | |
e091ef84 | 1050 | is_delimiter(unsigned char c) |
03e1125c SH |
1051 | { |
1052 | return isspace(c) || c == ','; | |
1053 | } | |
1054 | ||
1055 | uint32_t | |
1056 | ofputil_versions_from_string(const char *s) | |
1057 | { | |
1058 | size_t i = 0; | |
1059 | uint32_t bitmap = 0; | |
1060 | ||
1061 | while (s[i]) { | |
1062 | size_t j; | |
7beaa082 | 1063 | int version; |
03e1125c SH |
1064 | char *key; |
1065 | ||
1066 | if (is_delimiter(s[i])) { | |
1067 | i++; | |
1068 | continue; | |
1069 | } | |
1070 | j = 0; | |
1071 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1072 | j++; | |
1073 | } | |
1074 | key = xmemdup0(s + i, j); | |
1075 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1076 | if (!version) { |
1077 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1078 | } | |
03e1125c SH |
1079 | free(key); |
1080 | bitmap |= 1u << version; | |
1081 | i += j; | |
1082 | } | |
1083 | ||
1084 | return bitmap; | |
1085 | } | |
1086 | ||
7beaa082 SH |
1087 | uint32_t |
1088 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1089 | { | |
1090 | uint32_t bitmap = 0; | |
1091 | ||
1092 | while (count--) { | |
1093 | int version = ofputil_version_from_string(s[count]); | |
1094 | if (!version) { | |
1095 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1096 | } else { | |
1097 | bitmap |= 1u << version; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | return bitmap; | |
1102 | } | |
1103 | ||
03e1125c SH |
1104 | const char * |
1105 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1106 | { | |
1107 | switch (ofp_version) { | |
1108 | case OFP10_VERSION: | |
1109 | return "OpenFlow10"; | |
1110 | case OFP11_VERSION: | |
1111 | return "OpenFlow11"; | |
1112 | case OFP12_VERSION: | |
1113 | return "OpenFlow12"; | |
2e1ae200 JR |
1114 | case OFP13_VERSION: |
1115 | return "OpenFlow13"; | |
c37c0382 AC |
1116 | case OFP14_VERSION: |
1117 | return "OpenFlow14"; | |
42dccab5 BP |
1118 | case OFP15_VERSION: |
1119 | return "OpenFlow15"; | |
03e1125c | 1120 | default: |
428b2edd | 1121 | OVS_NOT_REACHED(); |
03e1125c SH |
1122 | } |
1123 | } | |
1124 | ||
54834960 EJ |
1125 | bool |
1126 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1127 | { | |
1128 | switch (packet_in_format) { | |
6409e008 BP |
1129 | case NXPIF_STANDARD: |
1130 | case NXPIF_NXT_PACKET_IN: | |
1131 | case NXPIF_NXT_PACKET_IN2: | |
54834960 EJ |
1132 | return true; |
1133 | } | |
1134 | ||
1135 | return false; | |
1136 | } | |
1137 | ||
1138 | const char * | |
1139 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1140 | { | |
1141 | switch (packet_in_format) { | |
6409e008 BP |
1142 | case NXPIF_STANDARD: |
1143 | return "standard"; | |
1144 | case NXPIF_NXT_PACKET_IN: | |
1145 | return "nxt_packet_in"; | |
1146 | case NXPIF_NXT_PACKET_IN2: | |
1147 | return "nxt_packet_in2"; | |
54834960 | 1148 | default: |
428b2edd | 1149 | OVS_NOT_REACHED(); |
54834960 EJ |
1150 | } |
1151 | } | |
1152 | ||
1153 | int | |
1154 | ofputil_packet_in_format_from_string(const char *s) | |
1155 | { | |
6409e008 BP |
1156 | return (!strcmp(s, "standard") || !strcmp(s, "openflow10") |
1157 | ? NXPIF_STANDARD | |
1158 | : !strcmp(s, "nxt_packet_in") || !strcmp(s, "nxm") | |
1159 | ? NXPIF_NXT_PACKET_IN | |
1160 | : !strcmp(s, "nxt_packet_in2") | |
1161 | ? NXPIF_NXT_PACKET_IN2 | |
54834960 EJ |
1162 | : -1); |
1163 | } | |
1164 | ||
03e1125c SH |
1165 | void |
1166 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1167 | { | |
8989046d | 1168 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1169 | } |
1170 | ||
1171 | void | |
1172 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1173 | { | |
1174 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1175 | } | |
1176 | ||
1177 | static void | |
1178 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1179 | void (*format_version)(struct ds *msg, | |
1180 | enum ofp_version)) | |
1181 | { | |
1182 | while (bitmap) { | |
1183 | format_version(msg, raw_ctz(bitmap)); | |
1184 | bitmap = zero_rightmost_1bit(bitmap); | |
1185 | if (bitmap) { | |
1186 | ds_put_cstr(msg, ", "); | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | void | |
1192 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1193 | { | |
1194 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1195 | } | |
1196 | ||
1197 | void | |
1198 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1199 | { | |
1200 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1201 | } | |
1202 | ||
de6c85b0 SH |
1203 | static bool |
1204 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1205 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1206 | { |
1207 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1208 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1209 | uint32_t allowed_versions; |
de6c85b0 SH |
1210 | |
1211 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1212 | return false; | |
1213 | } | |
1214 | ||
1215 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1216 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1217 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1218 | * wire-protocol versions greater than 31. |
1219 | */ | |
0935de41 | 1220 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1221 | |
0935de41 | 1222 | if (allowed_versions & 1) { |
de6c85b0 SH |
1223 | /* There's no OpenFlow version 0. */ |
1224 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1225 | "version 0x00"); | |
0935de41 | 1226 | allowed_versions &= ~1u; |
de6c85b0 SH |
1227 | } |
1228 | ||
0935de41 | 1229 | if (!allowed_versions) { |
de6c85b0 SH |
1230 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1231 | "version (between 0x01 and 0x1f)"); | |
1232 | return false; | |
1233 | } | |
1234 | ||
0935de41 | 1235 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1236 | return true; |
1237 | } | |
1238 | ||
1239 | static uint32_t | |
1240 | version_bitmap_from_version(uint8_t ofp_version) | |
1241 | { | |
1242 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1243 | } | |
1244 | ||
1245 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1246 | * the set of OpenFlow versions for which 'oh' announces support. | |
1247 | * | |
1248 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1249 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1250 | * returns false if 'oh' contains some data that could not be fully understood, | |
1251 | * true if 'oh' was completely parsed. */ | |
1252 | bool | |
1253 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1254 | { | |
0a2869d5 | 1255 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
de6c85b0 SH |
1256 | ofpbuf_pull(&msg, sizeof *oh); |
1257 | ||
1258 | *allowed_versions = version_bitmap_from_version(oh->version); | |
0a2869d5 BP |
1259 | |
1260 | bool ok = true; | |
6fd6ed71 | 1261 | while (msg.size) { |
de6c85b0 SH |
1262 | const struct ofp_hello_elem_header *oheh; |
1263 | unsigned int len; | |
1264 | ||
6fd6ed71 | 1265 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1266 | return false; |
1267 | } | |
1268 | ||
6fd6ed71 | 1269 | oheh = msg.data; |
de6c85b0 SH |
1270 | len = ntohs(oheh->length); |
1271 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1272 | return false; | |
1273 | } | |
1274 | ||
1275 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1276 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1277 | ok = false; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | return ok; | |
1282 | } | |
1283 | ||
1284 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1285 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1286 | static bool |
de6c85b0 SH |
1287 | should_send_version_bitmap(uint32_t allowed_versions) |
1288 | { | |
1289 | return !is_pow2((allowed_versions >> 1) + 1); | |
1290 | } | |
1291 | ||
1292 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1293 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1294 | struct ofpbuf * | |
1295 | ofputil_encode_hello(uint32_t allowed_versions) | |
1296 | { | |
1297 | enum ofp_version ofp_version; | |
1298 | struct ofpbuf *msg; | |
1299 | ||
1300 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1301 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1302 | ||
1303 | if (should_send_version_bitmap(allowed_versions)) { | |
1304 | struct ofp_hello_elem_header *oheh; | |
1305 | uint16_t map_len; | |
1306 | ||
74c4b9c1 | 1307 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1308 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1309 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1310 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1311 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1312 | |
1313 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1314 | } |
1315 | ||
1316 | return msg; | |
1317 | } | |
1318 | ||
27527aa0 BP |
1319 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1320 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1321 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1322 | * connection if the switch processes the returned message correctly. (If | |
1323 | * '*next != want' then the caller will have to iterate.) | |
1324 | * | |
e43928f2 BP |
1325 | * If 'current == want', or if it is not possible to transition from 'current' |
1326 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1327 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1328 | struct ofpbuf * |
1329 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1330 | enum ofputil_protocol want, | |
1331 | enum ofputil_protocol *next) | |
1332 | { | |
e43928f2 | 1333 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1334 | enum ofputil_protocol cur_base, want_base; |
1335 | bool cur_tid, want_tid; | |
1336 | ||
e43928f2 BP |
1337 | cur_version = ofputil_protocol_to_ofp_version(current); |
1338 | want_version = ofputil_protocol_to_ofp_version(want); | |
1339 | if (cur_version != want_version) { | |
1340 | *next = current; | |
1341 | return NULL; | |
1342 | } | |
1343 | ||
27527aa0 BP |
1344 | cur_base = ofputil_protocol_to_base(current); |
1345 | want_base = ofputil_protocol_to_base(want); | |
1346 | if (cur_base != want_base) { | |
1347 | *next = ofputil_protocol_set_base(current, want_base); | |
1348 | ||
1349 | switch (want_base) { | |
85813857 | 1350 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1351 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1352 | ||
85813857 | 1353 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1354 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1355 | ||
75fa58f8 | 1356 | case OFPUTIL_P_OF11_STD: |
85813857 | 1357 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1358 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1359 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1360 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1361 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1362 | * verified above that we're not trying to change versions. */ |
428b2edd | 1363 | OVS_NOT_REACHED(); |
44d3732d | 1364 | |
85813857 BP |
1365 | case OFPUTIL_P_OF10_STD_TID: |
1366 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1367 | OVS_NOT_REACHED(); |
27527aa0 BP |
1368 | } |
1369 | } | |
1370 | ||
1371 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1372 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1373 | if (cur_tid != want_tid) { | |
1374 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1375 | return ofputil_make_flow_mod_table_id(want_tid); | |
1376 | } | |
1377 | ||
cb22974d | 1378 | ovs_assert(current == want); |
27527aa0 BP |
1379 | |
1380 | *next = current; | |
1381 | return NULL; | |
88ca35ee BP |
1382 | } |
1383 | ||
27527aa0 BP |
1384 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1385 | * format to 'nxff'. */ | |
88ca35ee | 1386 | struct ofpbuf * |
27527aa0 | 1387 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1388 | { |
73dbf4ab | 1389 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1390 | struct ofpbuf *msg; |
1391 | ||
cb22974d | 1392 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1393 | |
982697a4 BP |
1394 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1395 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1396 | sff->format = htonl(nxff); |
88ca35ee BP |
1397 | |
1398 | return msg; | |
1399 | } | |
1400 | ||
27527aa0 BP |
1401 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1402 | * otherwise. */ | |
1403 | enum ofputil_protocol | |
1404 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1405 | { | |
1406 | switch (flow_format) { | |
1407 | case NXFF_OPENFLOW10: | |
85813857 | 1408 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1409 | |
1410 | case NXFF_NXM: | |
85813857 | 1411 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1412 | |
1413 | default: | |
1414 | return 0; | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1419 | bool | |
1420 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1421 | { | |
1422 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1423 | } | |
1424 | ||
1425 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1426 | * value. */ | |
1427 | const char * | |
1428 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1429 | { | |
1430 | switch (flow_format) { | |
1431 | case NXFF_OPENFLOW10: | |
1432 | return "openflow10"; | |
1433 | case NXFF_NXM: | |
1434 | return "nxm"; | |
1435 | default: | |
428b2edd | 1436 | OVS_NOT_REACHED(); |
27527aa0 BP |
1437 | } |
1438 | } | |
1439 | ||
54834960 | 1440 | struct ofpbuf * |
3f4a1939 SH |
1441 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1442 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1443 | { |
73dbf4ab | 1444 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1445 | struct ofpbuf *msg; |
1446 | ||
3f4a1939 | 1447 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1448 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1449 | spif->format = htonl(packet_in_format); |
1450 | ||
1451 | return msg; | |
1452 | } | |
1453 | ||
6c1491fb BP |
1454 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1455 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1456 | struct ofpbuf * | |
1457 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1458 | { | |
73dbf4ab | 1459 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1460 | struct ofpbuf *msg; |
1461 | ||
982697a4 BP |
1462 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1463 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1464 | nfmti->set = flow_mod_table_id; |
1465 | return msg; | |
1466 | } | |
1467 | ||
0fb88c18 BP |
1468 | struct ofputil_flow_mod_flag { |
1469 | uint16_t raw_flag; | |
1470 | enum ofp_version min_version, max_version; | |
1471 | enum ofputil_flow_mod_flags flag; | |
1472 | }; | |
1473 | ||
1474 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1475 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1476 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1477 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1478 | OFPUTIL_FF_EMERG }, | |
1479 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1480 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1481 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1482 | { 0, 0, 0, 0 }, | |
1483 | }; | |
1484 | ||
1485 | static enum ofperr | |
1486 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1487 | enum ofp_flow_mod_command command, | |
1488 | enum ofp_version version, | |
1489 | enum ofputil_flow_mod_flags *flagsp) | |
1490 | { | |
1491 | uint16_t raw_flags = ntohs(raw_flags_); | |
1492 | const struct ofputil_flow_mod_flag *f; | |
1493 | ||
1494 | *flagsp = 0; | |
1495 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1496 | if (raw_flags & f->raw_flag | |
1497 | && version >= f->min_version | |
1498 | && (!f->max_version || version <= f->max_version)) { | |
1499 | raw_flags &= ~f->raw_flag; | |
1500 | *flagsp |= f->flag; | |
1501 | } | |
1502 | } | |
1503 | ||
1504 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1505 | * never do. | |
1506 | * | |
1507 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1508 | * resets counters. */ | |
1509 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1510 | && command == OFPFC_ADD) { | |
1511 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1512 | } | |
1513 | ||
1514 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1515 | } | |
1516 | ||
1517 | static ovs_be16 | |
1518 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1519 | enum ofp_version version) | |
1520 | { | |
1521 | const struct ofputil_flow_mod_flag *f; | |
1522 | uint16_t raw_flags; | |
1523 | ||
1524 | raw_flags = 0; | |
1525 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1526 | if (f->flag & flags | |
1527 | && version >= f->min_version | |
1528 | && (!f->max_version || version <= f->max_version)) { | |
1529 | raw_flags |= f->raw_flag; | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | return htons(raw_flags); | |
1534 | } | |
1535 | ||
7fa91113 BP |
1536 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1537 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1538 | * code. | |
1539 | * | |
f25d0cf3 BP |
1540 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1541 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1542 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1543 | * | |
1544 | * Does not validate the flow_mod actions. The caller should do that, with | |
1545 | * ofpacts_check(). */ | |
90bf1e07 | 1546 | enum ofperr |
a9a2da38 | 1547 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1548 | const struct ofp_header *oh, |
f25d0cf3 | 1549 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1550 | struct ofpbuf *ofpacts, |
1551 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1552 | { |
0fb88c18 BP |
1553 | ovs_be16 raw_flags; |
1554 | enum ofperr error; | |
2e4f5fcf | 1555 | |
cc40d06b SH |
1556 | /* Ignored for non-delete actions */ |
1557 | fm->delete_reason = OFPRR_DELETE; | |
1558 | ||
0a2869d5 BP |
1559 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
1560 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
aa319503 | 1561 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1562 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1563 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1564 | |
bbc32a88 | 1565 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1566 | |
81a76618 | 1567 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1568 | if (error) { |
1569 | return error; | |
1c0b7503 BP |
1570 | } |
1571 | ||
2e4f5fcf | 1572 | /* Translate the message. */ |
81a76618 | 1573 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1574 | if (ofm->command == OFPFC_ADD |
1575 | || (oh->version == OFP11_VERSION | |
1576 | && (ofm->command == OFPFC_MODIFY || | |
1577 | ofm->command == OFPFC_MODIFY_STRICT) | |
1578 | && ofm->cookie_mask == htonll(0))) { | |
1579 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1580 | * not match on the cookie is treated as an "add" if there is no | |
1581 | * match. */ | |
aa319503 BP |
1582 | fm->cookie = htonll(0); |
1583 | fm->cookie_mask = htonll(0); | |
1584 | fm->new_cookie = ofm->cookie; | |
1585 | } else { | |
aa319503 BP |
1586 | fm->cookie = ofm->cookie; |
1587 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1588 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1589 | } |
23342857 | 1590 | fm->modify_cookie = false; |
aa319503 | 1591 | fm->command = ofm->command; |
0e197060 BP |
1592 | |
1593 | /* Get table ID. | |
1594 | * | |
083761ad SH |
1595 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1596 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1597 | fm->table_id = ofm->table_id; |
083761ad | 1598 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1599 | && (oh->version == OFP11_VERSION |
1600 | || (ofm->command != OFPFC_DELETE && | |
1601 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1602 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1603 | } | |
1604 | ||
2e4f5fcf BP |
1605 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1606 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1607 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1608 | fm->importance = ntohs(ofm->importance); | |
1609 | } else { | |
1610 | fm->importance = 0; | |
1611 | } | |
2e4f5fcf | 1612 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1613 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1614 | if (error) { |
1615 | return error; | |
1616 | } | |
7395c052 | 1617 | |
1fe4c0a0 BP |
1618 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1619 | ofm->command == OFPFC_DELETE_STRICT | |
1620 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1621 | : OFPG_ANY); |
0fb88c18 | 1622 | raw_flags = ofm->flags; |
aa319503 | 1623 | } else { |
0fb88c18 BP |
1624 | uint16_t command; |
1625 | ||
aa319503 BP |
1626 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1627 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1628 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1629 | |
1630 | /* Get the ofp10_flow_mod. */ | |
1631 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1632 | ||
aa319503 | 1633 | /* Translate the rule. */ |
81a76618 BP |
1634 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1635 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1636 | |
81a76618 BP |
1637 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1638 | * highest possible priority. */ | |
1639 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1640 | ? ntohs(ofm->priority) | |
1641 | : UINT16_MAX); | |
1642 | ||
aa319503 BP |
1643 | /* Translate the message. */ |
1644 | command = ntohs(ofm->command); | |
1645 | fm->cookie = htonll(0); | |
1646 | fm->cookie_mask = htonll(0); | |
1647 | fm->new_cookie = ofm->cookie; | |
1648 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1649 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1650 | fm->importance = 0; |
aa319503 | 1651 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1652 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1653 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1654 | raw_flags = ofm->flags; |
aa319503 BP |
1655 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1656 | /* Nicira extended flow_mod. */ | |
1657 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1658 | |
1659 | /* Dissect the message. */ | |
1660 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1661 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1662 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1663 | if (error) { |
1664 | return error; | |
1665 | } | |
aa319503 BP |
1666 | |
1667 | /* Translate the message. */ | |
1668 | command = ntohs(nfm->command); | |
1669 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1670 | /* Flow additions may only set a new cookie, not match an | |
1671 | * existing cookie. */ | |
1672 | return OFPERR_NXBRC_NXM_INVALID; | |
1673 | } | |
81a76618 | 1674 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1675 | fm->new_cookie = nfm->cookie; |
1676 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1677 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1678 | fm->importance = 0; |
aa319503 | 1679 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1680 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1681 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1682 | raw_flags = nfm->flags; |
aa319503 | 1683 | } else { |
428b2edd | 1684 | OVS_NOT_REACHED(); |
aa319503 BP |
1685 | } |
1686 | ||
b8266395 | 1687 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1688 | if (protocol & OFPUTIL_P_TID) { |
1689 | fm->command = command & 0xff; | |
1690 | fm->table_id = command >> 8; | |
1691 | } else { | |
1f42be1c JR |
1692 | if (command > 0xff) { |
1693 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1694 | "but flow_mod_table_id extension is not enabled"); | |
1695 | } | |
aa319503 BP |
1696 | fm->command = command; |
1697 | fm->table_id = 0xff; | |
e729e793 | 1698 | } |
2e4f5fcf BP |
1699 | } |
1700 | ||
1f42be1c JR |
1701 | if (fm->command > OFPFC_DELETE_STRICT) { |
1702 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1703 | } | |
1704 | ||
6fd6ed71 | 1705 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1706 | oh->version, ofpacts); |
1707 | if (error) { | |
1708 | return error; | |
1709 | } | |
6fd6ed71 PS |
1710 | fm->ofpacts = ofpacts->data; |
1711 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1712 | |
0fb88c18 BP |
1713 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1714 | oh->version, &fm->flags); | |
1715 | if (error) { | |
1716 | return error; | |
1717 | } | |
1718 | ||
1719 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1720 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1721 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1722 | * | |
1723 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1724 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1725 | * code, so just state that the flow table is full. */ | |
1726 | return (fm->hard_timeout || fm->idle_timeout | |
1727 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1728 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1729 | } | |
1730 | ||
ba2fe8e9 BP |
1731 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1732 | &fm->match.flow, max_port, | |
1733 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1734 | } |
1735 | ||
638a19b0 JR |
1736 | static enum ofperr |
1737 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1738 | struct ofpbuf *bands) | |
1739 | { | |
1740 | const struct ofp13_meter_band_header *ombh; | |
1741 | struct ofputil_meter_band *mb; | |
1742 | uint16_t n = 0; | |
1743 | ||
1744 | ombh = ofpbuf_try_pull(msg, len); | |
1745 | if (!ombh) { | |
1746 | return OFPERR_OFPBRC_BAD_LEN; | |
1747 | } | |
1748 | ||
1749 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1750 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1751 | /* All supported band types have the same length. */ |
638a19b0 JR |
1752 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1753 | return OFPERR_OFPBRC_BAD_LEN; | |
1754 | } | |
1755 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1756 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1757 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1758 | return OFPERR_OFPMMFC_BAD_BAND; | |
1759 | } | |
638a19b0 JR |
1760 | mb->rate = ntohl(ombh->rate); |
1761 | mb->burst_size = ntohl(ombh->burst_size); | |
1762 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1763 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1764 | n++; | |
1765 | len -= ombh_len; | |
db5a1019 AW |
1766 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1767 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1768 | } |
1769 | if (len) { | |
1770 | return OFPERR_OFPBRC_BAD_LEN; | |
1771 | } | |
1772 | *n_bands = n; | |
1773 | return 0; | |
1774 | } | |
1775 | ||
1776 | enum ofperr | |
1777 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1778 | struct ofputil_meter_mod *mm, | |
1779 | struct ofpbuf *bands) | |
1780 | { | |
0a2869d5 | 1781 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
638a19b0 | 1782 | ofpraw_pull_assert(&b); |
0a2869d5 | 1783 | const struct ofp13_meter_mod *omm = ofpbuf_pull(&b, sizeof *omm); |
638a19b0 JR |
1784 | |
1785 | /* Translate the message. */ | |
1786 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1787 | if (mm->command != OFPMC13_ADD && |
1788 | mm->command != OFPMC13_MODIFY && | |
1789 | mm->command != OFPMC13_DELETE) { | |
1790 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1791 | } | |
638a19b0 JR |
1792 | mm->meter.meter_id = ntohl(omm->meter_id); |
1793 | ||
1794 | if (mm->command == OFPMC13_DELETE) { | |
1795 | mm->meter.flags = 0; | |
1796 | mm->meter.n_bands = 0; | |
1797 | mm->meter.bands = NULL; | |
1798 | } else { | |
1799 | enum ofperr error; | |
1800 | ||
1801 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1802 | if (mm->meter.flags & OFPMF13_KBPS && |
1803 | mm->meter.flags & OFPMF13_PKTPS) { | |
1804 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1805 | } | |
6fd6ed71 | 1806 | mm->meter.bands = bands->data; |
638a19b0 | 1807 | |
6fd6ed71 | 1808 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1809 | if (error) { |
1810 | return error; | |
1811 | } | |
1812 | } | |
1813 | return 0; | |
1814 | } | |
1815 | ||
1816 | void | |
1817 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1818 | { | |
1819 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1820 | *meter_id = ntohl(omr->meter_id); | |
1821 | } | |
1822 | ||
1823 | struct ofpbuf * | |
1824 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1825 | enum ofputil_meter_request_type type, | |
1826 | uint32_t meter_id) | |
1827 | { | |
1828 | struct ofpbuf *msg; | |
1829 | ||
1830 | enum ofpraw raw; | |
1831 | ||
1832 | switch (type) { | |
1833 | case OFPUTIL_METER_CONFIG: | |
1834 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1835 | break; | |
1836 | case OFPUTIL_METER_STATS: | |
1837 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1838 | break; | |
1839 | default: | |
1840 | case OFPUTIL_METER_FEATURES: | |
1841 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1842 | break; | |
1843 | } | |
1844 | ||
1845 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1846 | ||
1847 | if (type != OFPUTIL_METER_FEATURES) { | |
1848 | struct ofp13_meter_multipart_request *omr; | |
1849 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1850 | omr->meter_id = htonl(meter_id); | |
1851 | } | |
1852 | return msg; | |
1853 | } | |
1854 | ||
1855 | static void | |
1856 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1857 | struct ofpbuf *msg) | |
1858 | { | |
1859 | uint16_t n = 0; | |
1860 | ||
1861 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1862 | /* Currently all band types have same size. */ |
638a19b0 JR |
1863 | struct ofp13_meter_band_dscp_remark *ombh; |
1864 | size_t ombh_len = sizeof *ombh; | |
1865 | ||
1866 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1867 | ||
1868 | ombh->type = htons(mb->type); | |
1869 | ombh->len = htons(ombh_len); | |
1870 | ombh->rate = htonl(mb->rate); | |
1871 | ombh->burst_size = htonl(mb->burst_size); | |
1872 | ombh->prec_level = mb->prec_level; | |
1873 | ||
1874 | mb++; | |
1875 | } | |
1876 | } | |
1877 | ||
1878 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1879 | void | |
ca6ba700 | 1880 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1881 | const struct ofputil_meter_config *mc) |
1882 | { | |
417e7e66 | 1883 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 1884 | size_t start_ofs = msg->size; |
6a5490c6 | 1885 | struct ofp13_meter_config *reply; |
638a19b0 | 1886 | |
6a5490c6 | 1887 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1888 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1889 | ||
32756a57 | 1890 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1891 | reply->flags = htons(mc->flags); |
1892 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1893 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1894 | |
1895 | ofpmp_postappend(replies, start_ofs); | |
1896 | } | |
1897 | ||
1898 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1899 | void | |
ca6ba700 | 1900 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1901 | const struct ofputil_meter_stats *ms) |
1902 | { | |
1903 | struct ofp13_meter_stats *reply; | |
1904 | uint16_t n = 0; | |
1905 | uint16_t len; | |
1906 | ||
1907 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1908 | reply = ofpmp_append(replies, len); | |
1909 | ||
1910 | reply->meter_id = htonl(ms->meter_id); | |
1911 | reply->len = htons(len); | |
1912 | memset(reply->pad, 0, sizeof reply->pad); | |
1913 | reply->flow_count = htonl(ms->flow_count); | |
1914 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1915 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1916 | reply->duration_sec = htonl(ms->duration_sec); | |
1917 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1918 | ||
1919 | for (n = 0; n < ms->n_bands; ++n) { | |
1920 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1921 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1922 | ||
1923 | dst->packet_band_count = htonll(src->packet_count); | |
1924 | dst->byte_band_count = htonll(src->byte_count); | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1929 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1930 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1931 | * it across the call. | |
1932 | * | |
1933 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1934 | * message. Calling this function multiple times for a single 'msg' iterates | |
1935 | * through the replies. 'bands' is cleared for each reply. | |
1936 | * | |
1937 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1938 | * otherwise a positive errno value. */ | |
1939 | int | |
1940 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1941 | struct ofputil_meter_config *mc, | |
1942 | struct ofpbuf *bands) | |
1943 | { | |
1944 | const struct ofp13_meter_config *omc; | |
1945 | enum ofperr err; | |
1946 | ||
1947 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1948 | if (!msg->header) { |
638a19b0 JR |
1949 | ofpraw_pull_assert(msg); |
1950 | } | |
1951 | ||
6fd6ed71 | 1952 | if (!msg->size) { |
638a19b0 JR |
1953 | return EOF; |
1954 | } | |
1955 | ||
1956 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1957 | if (!omc) { | |
0445637d | 1958 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1959 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 1960 | msg->size); |
638a19b0 JR |
1961 | return OFPERR_OFPBRC_BAD_LEN; |
1962 | } | |
1963 | ||
1964 | ofpbuf_clear(bands); | |
1965 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1966 | &mc->n_bands, bands); | |
1967 | if (err) { | |
1968 | return err; | |
1969 | } | |
1970 | mc->meter_id = ntohl(omc->meter_id); | |
1971 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 1972 | mc->bands = bands->data; |
638a19b0 JR |
1973 | |
1974 | return 0; | |
1975 | } | |
1976 | ||
1977 | static enum ofperr | |
1978 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1979 | struct ofpbuf *bands) | |
1980 | { | |
1981 | const struct ofp13_meter_band_stats *ombs; | |
1982 | struct ofputil_meter_band_stats *mbs; | |
1983 | uint16_t n, i; | |
1984 | ||
0445637d JR |
1985 | ombs = ofpbuf_try_pull(msg, len); |
1986 | if (!ombs) { | |
1987 | return OFPERR_OFPBRC_BAD_LEN; | |
1988 | } | |
1989 | ||
638a19b0 JR |
1990 | n = len / sizeof *ombs; |
1991 | if (len != n * sizeof *ombs) { | |
1992 | return OFPERR_OFPBRC_BAD_LEN; | |
1993 | } | |
1994 | ||
638a19b0 JR |
1995 | mbs = ofpbuf_put_uninit(bands, len); |
1996 | ||
1997 | for (i = 0; i < n; ++i) { | |
1998 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
1999 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2000 | } | |
2001 | *n_bands = n; | |
2002 | return 0; | |
2003 | } | |
2004 | ||
2005 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2006 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2007 | * decoded into 'bands'. | |
2008 | * | |
2009 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2010 | * message. Calling this function multiple times for a single 'msg' iterates | |
2011 | * through the replies. 'bands' is cleared for each reply. | |
2012 | * | |
2013 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2014 | * otherwise a positive errno value. */ | |
2015 | int | |
2016 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2017 | struct ofputil_meter_stats *ms, | |
2018 | struct ofpbuf *bands) | |
2019 | { | |
2020 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2021 | enum ofperr err; |
2022 | ||
2023 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2024 | if (!msg->header) { |
638a19b0 JR |
2025 | ofpraw_pull_assert(msg); |
2026 | } | |
2027 | ||
6fd6ed71 | 2028 | if (!msg->size) { |
638a19b0 JR |
2029 | return EOF; |
2030 | } | |
2031 | ||
2032 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2033 | if (!oms) { | |
0445637d | 2034 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2035 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2036 | msg->size); |
638a19b0 JR |
2037 | return OFPERR_OFPBRC_BAD_LEN; |
2038 | } | |
638a19b0 JR |
2039 | |
2040 | ofpbuf_clear(bands); | |
0445637d JR |
2041 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2042 | &ms->n_bands, bands); | |
638a19b0 JR |
2043 | if (err) { |
2044 | return err; | |
2045 | } | |
2046 | ms->meter_id = ntohl(oms->meter_id); | |
2047 | ms->flow_count = ntohl(oms->flow_count); | |
2048 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2049 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2050 | ms->duration_sec = ntohl(oms->duration_sec); | |
2051 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2052 | ms->bands = bands->data; |
638a19b0 JR |
2053 | |
2054 | return 0; | |
2055 | } | |
2056 | ||
2057 | void | |
2058 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2059 | struct ofputil_meter_features *mf) | |
2060 | { | |
2061 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2062 | ||
2063 | mf->max_meters = ntohl(omf->max_meter); | |
2064 | mf->band_types = ntohl(omf->band_types); | |
2065 | mf->capabilities = ntohl(omf->capabilities); | |
2066 | mf->max_bands = omf->max_bands; | |
2067 | mf->max_color = omf->max_color; | |
2068 | } | |
2069 | ||
2070 | struct ofpbuf * | |
2071 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2072 | const struct ofp_header *request) | |
2073 | { | |
2074 | struct ofpbuf *reply; | |
2075 | struct ofp13_meter_features *omf; | |
2076 | ||
2077 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2078 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2079 | ||
2080 | omf->max_meter = htonl(mf->max_meters); | |
2081 | omf->band_types = htonl(mf->band_types); | |
2082 | omf->capabilities = htonl(mf->capabilities); | |
2083 | omf->max_bands = mf->max_bands; | |
2084 | omf->max_color = mf->max_color; | |
2085 | ||
2086 | return reply; | |
2087 | } | |
2088 | ||
2089 | struct ofpbuf * | |
2090 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2091 | const struct ofputil_meter_mod *mm) | |
2092 | { | |
2093 | struct ofpbuf *msg; | |
2094 | ||
2095 | struct ofp13_meter_mod *omm; | |
2096 | ||
2097 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2098 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2099 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2100 | omm->command = htons(mm->command); | |
2101 | if (mm->command != OFPMC13_DELETE) { | |
2102 | omm->flags = htons(mm->meter.flags); | |
2103 | } | |
2104 | omm->meter_id = htonl(mm->meter.meter_id); | |
2105 | ||
2106 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2107 | ||
2108 | ofpmsg_update_length(msg); | |
2109 | return msg; | |
2110 | } | |
2111 | ||
aa6305ea SH |
2112 | static ovs_be16 |
2113 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2114 | enum ofputil_protocol protocol) | |
2115 | { | |
2116 | return htons(protocol & OFPUTIL_P_TID | |
2117 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2118 | : fm->command); | |
2119 | } | |
2120 | ||
2e4f5fcf | 2121 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2122 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2123 | struct ofpbuf * |
a9a2da38 | 2124 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2125 | enum ofputil_protocol protocol) |
2e4f5fcf | 2126 | { |
0fb88c18 BP |
2127 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2128 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2129 | struct ofpbuf *msg; |
2130 | ||
27527aa0 | 2131 | switch (protocol) { |
75fa58f8 | 2132 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2133 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2134 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2135 | case OFPUTIL_P_OF14_OXM: |
2136 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2137 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2138 | int tailroom; |
aa6305ea | 2139 | |
75fa58f8 | 2140 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2141 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2142 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2143 | if ((protocol == OFPUTIL_P_OF11_STD |
2144 | && (fm->command == OFPFC_MODIFY || | |
2145 | fm->command == OFPFC_MODIFY_STRICT) | |
2146 | && fm->cookie_mask == htonll(0)) | |
2147 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2148 | ofm->cookie = fm->new_cookie; |
2149 | } else { | |
ba5cc068 | 2150 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2151 | } |
aa6305ea | 2152 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2153 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2154 | || (protocol != OFPUTIL_P_OF11_STD |
2155 | && (fm->command == OFPFC_DELETE || | |
2156 | fm->command == OFPFC_DELETE_STRICT))) { | |
2157 | ofm->table_id = fm->table_id; | |
2158 | } else { | |
2159 | ofm->table_id = 0; | |
2160 | } | |
aa6305ea SH |
2161 | ofm->command = fm->command; |
2162 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2163 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2164 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2165 | ofm->buffer_id = htonl(fm->buffer_id); |
2166 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2167 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2168 | ofm->flags = raw_flags; |
ca26eb44 RB |
2169 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2170 | ofm->importance = htons(fm->importance); | |
2171 | } else { | |
2172 | ofm->importance = 0; | |
2173 | } | |
75fa58f8 | 2174 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2175 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2176 | version); | |
aa6305ea SH |
2177 | break; |
2178 | } | |
2179 | ||
85813857 BP |
2180 | case OFPUTIL_P_OF10_STD: |
2181 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2182 | struct ofp10_flow_mod *ofm; |
2183 | ||
982697a4 BP |
2184 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2185 | fm->ofpacts_len); | |
2186 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2187 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2188 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2189 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2190 | ofm->idle_timeout = htons(fm->idle_timeout); |
2191 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2192 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2193 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2194 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2195 | ofm->flags = raw_flags; |
e3f8f887 JR |
2196 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2197 | version); | |
27527aa0 | 2198 | break; |
3f192f23 | 2199 | } |
2e4f5fcf | 2200 | |
85813857 BP |
2201 | case OFPUTIL_P_OF10_NXM: |
2202 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2203 | struct nx_flow_mod *nfm; |
2204 | int match_len; | |
2205 | ||
982697a4 BP |
2206 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2207 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2208 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2209 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2210 | nfm->cookie = fm->new_cookie; |
81a76618 | 2211 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2212 | nfm = msg->msg; |
2e4f5fcf BP |
2213 | nfm->idle_timeout = htons(fm->idle_timeout); |
2214 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2215 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2216 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2217 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2218 | nfm->flags = raw_flags; |
2e4f5fcf | 2219 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2220 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2221 | version); | |
27527aa0 | 2222 | break; |
3f192f23 | 2223 | } |
27527aa0 BP |
2224 | |
2225 | default: | |
428b2edd | 2226 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2227 | } |
2228 | ||
982697a4 | 2229 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2230 | return msg; |
2231 | } | |
2232 | ||
90bf1e07 | 2233 | static enum ofperr |
0157ad3a SH |
2234 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2235 | const struct ofp10_flow_stats_request *ofsr, | |
2236 | bool aggregate) | |
2e4f5fcf | 2237 | { |
2e4f5fcf | 2238 | fsr->aggregate = aggregate; |
81a76618 | 2239 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2240 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2241 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2242 | fsr->table_id = ofsr->table_id; |
e729e793 | 2243 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2244 | |
2245 | return 0; | |
2246 | } | |
2247 | ||
0157ad3a SH |
2248 | static enum ofperr |
2249 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2250 | struct ofpbuf *b, bool aggregate) | |
2251 | { | |
2252 | const struct ofp11_flow_stats_request *ofsr; | |
2253 | enum ofperr error; | |
2254 | ||
2255 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2256 | fsr->aggregate = aggregate; | |
2257 | fsr->table_id = ofsr->table_id; | |
2258 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2259 | if (error) { | |
2260 | return error; | |
2261 | } | |
7395c052 | 2262 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2263 | fsr->cookie = ofsr->cookie; |
2264 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2265 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2266 | if (error) { |
2267 | return error; | |
2268 | } | |
2269 | ||
2270 | return 0; | |
2271 | } | |
2272 | ||
90bf1e07 | 2273 | static enum ofperr |
81d1ea94 | 2274 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2275 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2276 | { |
2277 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2278 | enum ofperr error; |
2e4f5fcf | 2279 | |
982697a4 | 2280 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2281 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2282 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2283 | if (error) { |
2284 | return error; | |
2285 | } | |
6fd6ed71 | 2286 | if (b->size) { |
90bf1e07 | 2287 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2288 | } |
2289 | ||
2290 | fsr->aggregate = aggregate; | |
4e022ec0 | 2291 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2292 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2293 | fsr->table_id = nfsr->table_id; |
2294 | ||
2295 | return 0; | |
2296 | } | |
2297 | ||
e8f9a7bb | 2298 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2299 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2300 | * | |
2301 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2302 | * request all queues. */ | |
e8f9a7bb VG |
2303 | struct ofpbuf * |
2304 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2305 | ofp_port_t port, |
2306 | uint32_t queue) | |
e8f9a7bb VG |
2307 | { |
2308 | struct ofpbuf *request; | |
2309 | ||
2310 | if (version == OFP10_VERSION) { | |
2311 | struct ofp10_queue_get_config_request *qgcr10; | |
2312 | ||
2313 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2314 | version, 0); | |
2315 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2316 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2317 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2318 | struct ofp11_queue_get_config_request *qgcr11; |
2319 | ||
2320 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2321 | version, 0); | |
2322 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2323 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2324 | } else { |
2325 | struct ofp14_queue_desc_request *qdr14; | |
2326 | ||
2327 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2328 | version, 0); | |
2329 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2330 | qdr14->port = ofputil_port_to_ofp11(port); | |
2331 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2332 | } |
2333 | ||
2334 | return request; | |
2335 | } | |
2336 | ||
2337 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2338 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2339 | * code. */ | |
2340 | enum ofperr | |
2341 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2342 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2343 | { |
2344 | const struct ofp10_queue_get_config_request *qgcr10; | |
2345 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2346 | const struct ofp14_queue_desc_request *qdr14; |
0a2869d5 BP |
2347 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2348 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
e8f9a7bb VG |
2349 | |
2350 | switch ((int) raw) { | |
2351 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2352 | qgcr10 = b.data; |
e8f9a7bb | 2353 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2354 | *queue = OFPQ_ALL; |
56085be5 | 2355 | break; |
e8f9a7bb VG |
2356 | |
2357 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2358 | qgcr11 = b.data; |
e016fb63 | 2359 | *queue = OFPQ_ALL; |
56085be5 BP |
2360 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2361 | if (error || *port == OFPP_ANY) { | |
2362 | return error; | |
2363 | } | |
2364 | break; | |
2365 | ||
e016fb63 BP |
2366 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2367 | qdr14 = b.data; | |
2368 | *queue = ntohl(qdr14->queue); | |
2369 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2370 | ||
56085be5 BP |
2371 | default: |
2372 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2373 | } |
2374 | ||
56085be5 BP |
2375 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2376 | ? 0 | |
2377 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2378 | } |
2379 | ||
2380 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2381 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2382 | * may append information about individual queues with | |
2383 | * ofputil_append_queue_get_config_reply(). */ | |
2384 | void | |
2385 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2386 | struct ovs_list *replies) | |
e8f9a7bb | 2387 | { |
e8f9a7bb VG |
2388 | struct ofpbuf *reply; |
2389 | enum ofperr error; | |
e8f9a7bb | 2390 | ofp_port_t port; |
e016fb63 | 2391 | uint32_t queue; |
e8f9a7bb | 2392 | |
e016fb63 | 2393 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2394 | ovs_assert(!error); |
2395 | ||
e016fb63 | 2396 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2397 | switch ((int) raw) { |
2398 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2399 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2400 | request, 0); |
2401 | struct ofp10_queue_get_config_reply *qgcr10 | |
2402 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2403 | qgcr10->port = htons(ofp_to_u16(port)); |
2404 | break; | |
2405 | ||
2406 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2407 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2408 | request, 0); |
2409 | struct ofp11_queue_get_config_reply *qgcr11 | |
2410 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2411 | qgcr11->port = ofputil_port_to_ofp11(port); |
2412 | break; | |
2413 | ||
e016fb63 BP |
2414 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2415 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2416 | break; | |
2417 | ||
e8f9a7bb | 2418 | default: |
428b2edd | 2419 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2420 | } |
2421 | ||
417e7e66 BW |
2422 | ovs_list_init(replies); |
2423 | ovs_list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2424 | } |
2425 | ||
2426 | static void | |
d2e5fa1f BP |
2427 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2428 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2429 | { |
2430 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2431 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2432 | |
2433 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2434 | oqpr->prop_header.property = htons(property); | |
2435 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2436 | oqpr->rate = htons(rate); | |
2437 | } | |
2438 | } | |
2439 | ||
e016fb63 BP |
2440 | static void |
2441 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2442 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2443 | { | |
2444 | if (rate != UINT16_MAX) { | |
2445 | ofpprop_put_u16(reply, type, rate); | |
2446 | } | |
2447 | } | |
2448 | ||
e8f9a7bb | 2449 | void |
e016fb63 BP |
2450 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2451 | struct ovs_list *replies) | |
e8f9a7bb | 2452 | { |
e016fb63 | 2453 | enum ofp_version ofp_version = ofpmp_version(replies); |
417e7e66 | 2454 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
e016fb63 BP |
2455 | size_t start_ofs = reply->size; |
2456 | size_t len_ofs; | |
e8f9a7bb VG |
2457 | ovs_be16 *len; |
2458 | ||
e016fb63 BP |
2459 | if (ofp_version < OFP14_VERSION) { |
2460 | if (ofp_version < OFP12_VERSION) { | |
2461 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2462 | |
e016fb63 BP |
2463 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2464 | opq10->queue_id = htonl(qc->queue); | |
2465 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2466 | } else { | |
2467 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2468 | |
e016fb63 BP |
2469 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2470 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2471 | opq12->queue_id = htonl(qc->queue); | |
2472 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2473 | } | |
e8f9a7bb | 2474 | |
e016fb63 BP |
2475 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2476 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2477 | } else { | |
2478 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2479 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2480 | oqd->queue_id = htonl(qc->queue); | |
2481 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2482 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2483 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2484 | } | |
e8f9a7bb VG |
2485 | |
2486 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2487 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2488 | |
e016fb63 BP |
2489 | if (ofp_version >= OFP14_VERSION) { |
2490 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2491 | } |
e8f9a7bb VG |
2492 | } |
2493 | ||
2494 | static enum ofperr | |
d2e5fa1f BP |
2495 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2496 | uint16_t *rate) | |
e8f9a7bb | 2497 | { |
d2e5fa1f | 2498 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2499 | |
2500 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2501 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2502 | *rate = ntohs(oqpr->rate); |
2503 | return 0; | |
2504 | } else { | |
2505 | return OFPERR_OFPBRC_BAD_LEN; | |
2506 | } | |
2507 | } | |
2508 | ||
e016fb63 BP |
2509 | static int |
2510 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2511 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2512 | { |
e016fb63 BP |
2513 | const struct ofp_header *oh = msg->header; |
2514 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2515 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2516 | |
e016fb63 BP |
2517 | /* Obtain the port number from the message header. */ |
2518 | if (oh->version == OFP10_VERSION) { | |
2519 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2520 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2521 | } else { | |
2522 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2523 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2524 | &queue->port); | |
2525 | if (error) { | |
2526 | return error; | |
2527 | } | |
e8f9a7bb VG |
2528 | } |
2529 | ||
e016fb63 | 2530 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2531 | if (oh->version < OFP12_VERSION) { |
2532 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2533 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2534 | if (!opq10) { |
2535 | return OFPERR_OFPBRC_BAD_LEN; | |
2536 | } | |
e016fb63 | 2537 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2538 | len = ntohs(opq10->len); |
2539 | opq_len = sizeof *opq10; | |
2540 | } else { | |
2541 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2542 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2543 | if (!opq12) { |
2544 | return OFPERR_OFPBRC_BAD_LEN; | |
2545 | } | |
e016fb63 | 2546 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2547 | len = ntohs(opq12->len); |
2548 | opq_len = sizeof *opq12; | |
2549 | } | |
2550 | ||
e016fb63 BP |
2551 | /* Length check. */ |
2552 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2553 | return OFPERR_OFPBRC_BAD_LEN; |
2554 | } | |
2555 | len -= opq_len; | |
2556 | ||
e016fb63 BP |
2557 | /* Pull properties. The format of these properties differs from used in |
2558 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2559 | while (len > 0) { |
d2e5fa1f | 2560 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2561 | unsigned int property; |
2562 | unsigned int prop_len; | |
2563 | enum ofperr error = 0; | |
2564 | ||
e016fb63 | 2565 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2566 | prop_len = ntohs(hdr->len); |
e016fb63 | 2567 | if (prop_len < sizeof *hdr || prop_len > msg->size || prop_len % 8) { |
e8f9a7bb VG |
2568 | return OFPERR_OFPBRC_BAD_LEN; |
2569 | } | |
2570 | ||
2571 | property = ntohs(hdr->property); | |
2572 | switch (property) { | |
d2e5fa1f BP |
2573 | case OFPQT10_MIN_RATE: |
2574 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2575 | break; |
2576 | ||
d2e5fa1f BP |
2577 | case OFPQT11_MAX_RATE: |
2578 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2579 | break; |
2580 | ||
2581 | default: | |
2582 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2583 | break; | |
2584 | } | |
2585 | if (error) { | |
2586 | return error; | |
2587 | } | |
2588 | ||
e016fb63 | 2589 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2590 | len -= prop_len; |
2591 | } | |
2592 | return 0; | |
2593 | } | |
2594 | ||
e016fb63 BP |
2595 | static int |
2596 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2597 | struct ofputil_queue_config *queue) | |
2598 | { | |
2599 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2600 | if (!oqd14) { | |
2601 | return OFPERR_OFPBRC_BAD_LEN; | |
2602 | } | |
2603 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2604 | if (error) { | |
2605 | return error; | |
2606 | } | |
2607 | queue->queue = ntohl(oqd14->queue_id); | |
2608 | ||
2609 | /* Length check. */ | |
2610 | unsigned int len = ntohs(oqd14->len); | |
2611 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2612 | return OFPERR_OFPBRC_BAD_LEN; | |
2613 | } | |
2614 | len -= sizeof *oqd14; | |
2615 | ||
0a2869d5 BP |
2616 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
2617 | len); | |
e016fb63 BP |
2618 | while (properties.size > 0) { |
2619 | struct ofpbuf payload; | |
2620 | uint64_t type; | |
2621 | ||
2622 | error = ofpprop_pull(&properties, &payload, &type); | |
2623 | if (error) { | |
2624 | return error; | |
2625 | } | |
2626 | ||
2627 | switch (type) { | |
2628 | case OFPQDPT14_MIN_RATE: | |
2629 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2630 | break; | |
2631 | ||
2632 | case OFPQDPT14_MAX_RATE: | |
2633 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2634 | break; | |
2635 | ||
2636 | default: | |
2637 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2638 | break; | |
2639 | } | |
2640 | ||
2641 | if (error) { | |
2642 | return error; | |
2643 | } | |
2644 | } | |
2645 | ||
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2650 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2651 | * must already have pulled off the main header. | |
2652 | * | |
2653 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2654 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2655 | * problem decoding 'reply'. */ | |
2656 | int | |
2657 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2658 | struct ofputil_queue_config *queue) | |
2659 | { | |
2660 | enum ofpraw raw; | |
2661 | if (!msg->header) { | |
2662 | /* Pull OpenFlow header. */ | |
2663 | raw = ofpraw_pull_assert(msg); | |
2664 | ||
2665 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2666 | * doesn't have one at all). */ | |
2667 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2668 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2669 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2670 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2671 | } else { | |
2672 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2673 | } | |
2674 | } else { | |
2675 | raw = ofpraw_decode_assert(msg->header); | |
2676 | } | |
2677 | ||
2678 | queue->min_rate = UINT16_MAX; | |
2679 | queue->max_rate = UINT16_MAX; | |
2680 | ||
2681 | if (!msg->size) { | |
2682 | return EOF; | |
2683 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2684 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2685 | } else { | |
2686 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2687 | } | |
2688 | } | |
2689 | ||
2e4f5fcf | 2690 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2691 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2692 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2693 | enum ofperr |
81d1ea94 | 2694 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2695 | const struct ofp_header *oh) |
2e4f5fcf | 2696 | { |
0a2869d5 BP |
2697 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2698 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 2699 | switch ((int) raw) { |
cfc23141 | 2700 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2701 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2702 | |
617da9cd | 2703 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2704 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2705 | |
2706 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2707 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2708 | |
617da9cd SH |
2709 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2710 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2711 | ||
982697a4 BP |
2712 | case OFPRAW_NXST_FLOW_REQUEST: |
2713 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2714 | |
982697a4 BP |
2715 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2716 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2717 | |
2718 | default: | |
2719 | /* Hey, the caller lied. */ | |
428b2edd | 2720 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2721 | } |
2722 | } | |
2723 | ||
2724 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2725 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2726 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2727 | struct ofpbuf * |
81d1ea94 | 2728 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2729 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2730 | { |
2731 | struct ofpbuf *msg; | |
982697a4 | 2732 | enum ofpraw raw; |
2e4f5fcf | 2733 | |
27527aa0 | 2734 | switch (protocol) { |
75fa58f8 | 2735 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2736 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2737 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2738 | case OFPUTIL_P_OF14_OXM: |
2739 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2740 | struct ofp11_flow_stats_request *ofsr; |
2741 | ||
2742 | raw = (fsr->aggregate | |
617da9cd | 2743 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2744 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2745 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2746 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2747 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2748 | ofsr->table_id = fsr->table_id; | |
2749 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2750 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2751 | ofsr->cookie = fsr->cookie; |
2752 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2753 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2754 | break; |
2755 | } | |
2756 | ||
85813857 BP |
2757 | case OFPUTIL_P_OF10_STD: |
2758 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2759 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2760 | |
982697a4 | 2761 | raw = (fsr->aggregate |
617da9cd | 2762 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2763 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2764 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2765 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2766 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2767 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2768 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2769 | break; |
2770 | } | |
2771 | ||
85813857 BP |
2772 | case OFPUTIL_P_OF10_NXM: |
2773 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2774 | struct nx_flow_stats_request *nfsr; |
2775 | int match_len; | |
2776 | ||
982697a4 BP |
2777 | raw = (fsr->aggregate |
2778 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2779 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2780 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2781 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2782 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2783 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2784 | |
6fd6ed71 | 2785 | nfsr = msg->msg; |
4e022ec0 | 2786 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2787 | nfsr->match_len = htons(match_len); |
2788 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2789 | break; |
2790 | } | |
2791 | ||
2792 | default: | |
428b2edd | 2793 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2794 | } |
2795 | ||
2796 | return msg; | |
2797 | } | |
d1e2cf21 | 2798 | |
4ffd1b43 | 2799 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2800 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2801 | * |
2802 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2803 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2804 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2805 | * pointers null and not modify them between calls. | |
2806 | * | |
f27f2134 BP |
2807 | * Most switches don't send the values needed to populate fs->idle_age and |
2808 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2809 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2810 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2811 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2812 | * | |
f25d0cf3 BP |
2813 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2814 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2815 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2816 | * | |
4ffd1b43 BP |
2817 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2818 | * otherwise a positive errno value. */ | |
2819 | int | |
2820 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2821 | struct ofpbuf *msg, |
f25d0cf3 BP |
2822 | bool flow_age_extension, |
2823 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2824 | { |
0fb88c18 | 2825 | const struct ofp_header *oh; |
8f2cded4 | 2826 | size_t instructions_len; |
982697a4 BP |
2827 | enum ofperr error; |
2828 | enum ofpraw raw; | |
4ffd1b43 | 2829 | |
6fd6ed71 | 2830 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2831 | : ofpraw_pull(&raw, msg)); |
2832 | if (error) { | |
2833 | return error; | |
4ffd1b43 | 2834 | } |
6fd6ed71 | 2835 | oh = msg->header; |
4ffd1b43 | 2836 | |
6fd6ed71 | 2837 | if (!msg->size) { |
4ffd1b43 | 2838 | return EOF; |
2e1ae200 JR |
2839 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2840 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2841 | const struct ofp11_flow_stats *ofs; |
2842 | size_t length; | |
2843 | uint16_t padded_match_len; | |
2844 | ||
2845 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2846 | if (!ofs) { | |
437d0d22 | 2847 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2848 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2849 | return EINVAL; |
2850 | } | |
2851 | ||
2852 | length = ntohs(ofs->length); | |
2853 | if (length < sizeof *ofs) { | |
2854 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2855 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2856 | return EINVAL; |
2857 | } | |
2858 | ||
81a76618 | 2859 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2860 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2861 | return EINVAL; | |
2862 | } | |
8f2cded4 | 2863 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2864 | |
81a76618 | 2865 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2866 | fs->table_id = ofs->table_id; |
2867 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2868 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2869 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2870 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2871 | if (oh->version >= OFP14_VERSION) { |
2872 | fs->importance = ntohs(ofs->importance); | |
2873 | } else { | |
2874 | fs->importance = 0; | |
2875 | } | |
0fb88c18 BP |
2876 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2877 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2878 | &fs->flags); | |
2879 | if (error) { | |
2880 | return error; | |
2881 | } | |
2882 | } else { | |
2883 | fs->flags = 0; | |
2884 | } | |
6ec5f0c5 SH |
2885 | fs->idle_age = -1; |
2886 | fs->hard_age = -1; | |
2887 | fs->cookie = ofs->cookie; | |
2888 | fs->packet_count = ntohll(ofs->packet_count); | |
2889 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2890 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2891 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2892 | size_t length; |
2893 | ||
2894 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2895 | if (!ofs) { | |
437d0d22 | 2896 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2897 | "bytes at end", msg->size); |
4ffd1b43 BP |
2898 | return EINVAL; |
2899 | } | |
2900 | ||
2901 | length = ntohs(ofs->length); | |
2902 | if (length < sizeof *ofs) { | |
2903 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2904 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2905 | return EINVAL; |
2906 | } | |
8f2cded4 | 2907 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2908 | |
2909 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2910 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2911 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2912 | fs->table_id = ofs->table_id; |
2913 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2914 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2915 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2916 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2917 | fs->importance = 0; |
f27f2134 BP |
2918 | fs->idle_age = -1; |
2919 | fs->hard_age = -1; | |
4ffd1b43 BP |
2920 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2921 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2922 | fs->flags = 0; |
982697a4 | 2923 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2924 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2925 | size_t match_len, length; |
4ffd1b43 BP |
2926 | |
2927 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2928 | if (!nfs) { | |
437d0d22 | 2929 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2930 | "bytes at end", msg->size); |
4ffd1b43 BP |
2931 | return EINVAL; |
2932 | } | |
2933 | ||
2934 | length = ntohs(nfs->length); | |
2935 | match_len = ntohs(nfs->match_len); | |
2936 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2937 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2938 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2939 | return EINVAL; |
2940 | } | |
81a76618 | 2941 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2942 | return EINVAL; |
2943 | } | |
8f2cded4 | 2944 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2945 | |
2946 | fs->cookie = nfs->cookie; | |
2947 | fs->table_id = nfs->table_id; | |
2948 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2949 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2950 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2951 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2952 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2953 | fs->importance = 0; |
f27f2134 BP |
2954 | fs->idle_age = -1; |
2955 | fs->hard_age = -1; | |
2956 | if (flow_age_extension) { | |
2957 | if (nfs->idle_age) { | |
2958 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2959 | } | |
2960 | if (nfs->hard_age) { | |
2961 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2962 | } | |
2963 | } | |
4ffd1b43 BP |
2964 | fs->packet_count = ntohll(nfs->packet_count); |
2965 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2966 | fs->flags = 0; |
4ffd1b43 | 2967 | } else { |
428b2edd | 2968 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2969 | } |
2970 | ||
8f2cded4 BP |
2971 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2972 | ofpacts)) { | |
2973 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2974 | return EINVAL; | |
2975 | } | |
6fd6ed71 PS |
2976 | fs->ofpacts = ofpacts->data; |
2977 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 2978 | |
4ffd1b43 BP |
2979 | return 0; |
2980 | } | |
2981 | ||
5e9d0469 BP |
2982 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2983 | * | |
2984 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2985 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2986 | static uint64_t | |
2987 | unknown_to_zero(uint64_t count) | |
2988 | { | |
2989 | return count != UINT64_MAX ? count : 0; | |
2990 | } | |
2991 | ||
349adfb2 BP |
2992 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2993 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2994 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2995 | void |
2996 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 2997 | struct ovs_list *replies) |
349adfb2 | 2998 | { |
417e7e66 | 2999 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 3000 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3001 | enum ofp_version version = ofpmp_version(replies); |
3002 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3003 | |
2e1ae200 | 3004 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3005 | struct ofp11_flow_stats *ofs; |
3006 | ||
3007 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3008 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3009 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3010 | version); | |
22a86f18 SH |
3011 | |
3012 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3013 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3014 | ofs->table_id = fs->table_id; |
3015 | ofs->pad = 0; | |
3016 | ofs->duration_sec = htonl(fs->duration_sec); | |
3017 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3018 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3019 | ofs->idle_timeout = htons(fs->idle_timeout); |
3020 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3021 | if (version >= OFP14_VERSION) { |
3022 | ofs->importance = htons(fs->importance); | |
3023 | } else { | |
3024 | ofs->importance = 0; | |
3025 | } | |
0fb88c18 | 3026 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3027 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3028 | } else { |
3029 | ofs->flags = 0; | |
3030 | } | |
22a86f18 SH |
3031 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3032 | ofs->cookie = fs->cookie; | |
3033 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3034 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3035 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3036 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3037 | |
1a59dc2c | 3038 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3039 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3040 | version); | |
1a59dc2c | 3041 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3042 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3043 | ofs->table_id = fs->table_id; |
3044 | ofs->pad = 0; | |
81a76618 | 3045 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3046 | ofs->duration_sec = htonl(fs->duration_sec); |
3047 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3048 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3049 | ofs->idle_timeout = htons(fs->idle_timeout); |
3050 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3051 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3052 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3053 | put_32aligned_be64(&ofs->packet_count, |
3054 | htonll(unknown_to_zero(fs->packet_count))); | |
3055 | put_32aligned_be64(&ofs->byte_count, | |
3056 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3057 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3058 | struct nx_flow_stats *nfs; |
1a59dc2c | 3059 | int match_len; |
349adfb2 | 3060 | |
1a59dc2c | 3061 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3062 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3063 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3064 | version); | |
1a59dc2c | 3065 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3066 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3067 | nfs->table_id = fs->table_id; |
3068 | nfs->pad = 0; | |
3069 | nfs->duration_sec = htonl(fs->duration_sec); | |
3070 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3071 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3072 | nfs->idle_timeout = htons(fs->idle_timeout); |
3073 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3074 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3075 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3076 | : UINT16_MAX); | |
3077 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3078 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3079 | : UINT16_MAX); | |
1a59dc2c | 3080 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3081 | nfs->cookie = fs->cookie; |
3082 | nfs->packet_count = htonll(fs->packet_count); | |
3083 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3084 | } else { |
428b2edd | 3085 | OVS_NOT_REACHED(); |
349adfb2 | 3086 | } |
f25d0cf3 | 3087 | |
982697a4 | 3088 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3089 | } |
3090 | ||
76c93b22 | 3091 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3092 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3093 | struct ofpbuf * |
3094 | ofputil_encode_aggregate_stats_reply( | |
3095 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3096 | const struct ofp_header *request) |
76c93b22 | 3097 | { |
a814ba0f BP |
3098 | struct ofp_aggregate_stats_reply *asr; |
3099 | uint64_t packet_count; | |
3100 | uint64_t byte_count; | |
76c93b22 | 3101 | struct ofpbuf *msg; |
982697a4 | 3102 | enum ofpraw raw; |
76c93b22 | 3103 | |
982697a4 | 3104 | ofpraw_decode(&raw, request); |
617da9cd | 3105 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3106 | packet_count = unknown_to_zero(stats->packet_count); |
3107 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3108 | } else { |
a814ba0f BP |
3109 | packet_count = stats->packet_count; |
3110 | byte_count = stats->byte_count; | |
76c93b22 BP |
3111 | } |
3112 | ||
a814ba0f BP |
3113 | msg = ofpraw_alloc_stats_reply(request, 0); |
3114 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3115 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3116 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3117 | asr->flow_count = htonl(stats->flow_count); | |
3118 | ||
76c93b22 BP |
3119 | return msg; |
3120 | } | |
3121 | ||
982697a4 BP |
3122 | enum ofperr |
3123 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3124 | const struct ofp_header *reply) | |
3125 | { | |
0a2869d5 | 3126 | struct ofpbuf msg = ofpbuf_const_initializer(reply, ntohs(reply->length)); |
a814ba0f BP |
3127 | ofpraw_pull_assert(&msg); |
3128 | ||
0a2869d5 | 3129 | struct ofp_aggregate_stats_reply *asr = msg.msg; |
a814ba0f BP |
3130 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3131 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3132 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3133 | |
3134 | return 0; | |
3135 | } | |
3136 | ||
b78f6b77 BP |
3137 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3138 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3139 | * an OpenFlow error code. */ | |
90bf1e07 | 3140 | enum ofperr |
9b045a0c | 3141 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3142 | const struct ofp_header *oh) |
9b045a0c | 3143 | { |
0a2869d5 BP |
3144 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3145 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3146 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3147 | const struct ofp12_flow_removed *ofr; | |
3148 | enum ofperr error; | |
3149 | ||
3150 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3151 | ||
81a76618 | 3152 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3153 | if (error) { |
3154 | return error; | |
3155 | } | |
3156 | ||
81a76618 | 3157 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3158 | fr->cookie = ofr->cookie; |
3159 | fr->reason = ofr->reason; | |
95216219 | 3160 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3161 | fr->duration_sec = ntohl(ofr->duration_sec); |
3162 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3163 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3164 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3165 | fr->packet_count = ntohll(ofr->packet_count); | |
3166 | fr->byte_count = ntohll(ofr->byte_count); | |
3167 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3168 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3169 | |
982697a4 BP |
3170 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3171 | ||
81a76618 BP |
3172 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3173 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3174 | fr->cookie = ofr->cookie; |
3175 | fr->reason = ofr->reason; | |
95216219 | 3176 | fr->table_id = 255; |
9b045a0c BP |
3177 | fr->duration_sec = ntohl(ofr->duration_sec); |
3178 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3179 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3180 | fr->hard_timeout = 0; |
9b045a0c BP |
3181 | fr->packet_count = ntohll(ofr->packet_count); |
3182 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3183 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3184 | struct nx_flow_removed *nfr; |
c2725b60 | 3185 | enum ofperr error; |
9b045a0c | 3186 | |
9b045a0c | 3187 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3188 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3189 | NULL, NULL); | |
9b045a0c BP |
3190 | if (error) { |
3191 | return error; | |
3192 | } | |
6fd6ed71 | 3193 | if (b.size) { |
90bf1e07 | 3194 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3195 | } |
3196 | ||
81a76618 | 3197 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3198 | fr->cookie = nfr->cookie; |
3199 | fr->reason = nfr->reason; | |
745bfd5e | 3200 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3201 | fr->duration_sec = ntohl(nfr->duration_sec); |
3202 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3203 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3204 | fr->hard_timeout = 0; |
9b045a0c BP |
3205 | fr->packet_count = ntohll(nfr->packet_count); |
3206 | fr->byte_count = ntohll(nfr->byte_count); | |
3207 | } else { | |
428b2edd | 3208 | OVS_NOT_REACHED(); |
9b045a0c BP |
3209 | } |
3210 | ||
3211 | return 0; | |
3212 | } | |
3213 | ||
588cd7b5 | 3214 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3215 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3216 | * message. */ |
3217 | struct ofpbuf * | |
3218 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3219 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3220 | { |
3221 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3222 | enum ofp_flow_removed_reason reason = fr->reason; |
3223 | ||
3224 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3225 | reason = OFPRR_DELETE; | |
3226 | } | |
588cd7b5 | 3227 | |
27527aa0 | 3228 | switch (protocol) { |
75fa58f8 | 3229 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3230 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3231 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3232 | case OFPUTIL_P_OF14_OXM: |
3233 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3234 | struct ofp12_flow_removed *ofr; |
3235 | ||
3236 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3237 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3238 | htonl(0), |
3239 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3240 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3241 | ofr->cookie = fr->cookie; | |
81a76618 | 3242 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3243 | ofr->reason = reason; |
95216219 | 3244 | ofr->table_id = fr->table_id; |
83974732 SH |
3245 | ofr->duration_sec = htonl(fr->duration_sec); |
3246 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3247 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3248 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3249 | ofr->packet_count = htonll(fr->packet_count); |
3250 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3251 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3252 | break; |
3253 | } | |
3254 | ||
85813857 BP |
3255 | case OFPUTIL_P_OF10_STD: |
3256 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3257 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3258 | |
982697a4 BP |
3259 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3260 | htonl(0), 0); | |
3261 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3262 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3263 | ofr->cookie = fr->cookie; |
81a76618 | 3264 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3265 | ofr->reason = reason; |
588cd7b5 BP |
3266 | ofr->duration_sec = htonl(fr->duration_sec); |
3267 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3268 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3269 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3270 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3271 | break; |
3272 | } | |
3273 | ||
85813857 BP |
3274 | case OFPUTIL_P_OF10_NXM: |
3275 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3276 | struct nx_flow_removed *nfr; |
3277 | int match_len; | |
3278 | ||
982697a4 BP |
3279 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3280 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3281 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3282 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3283 | |
6fd6ed71 | 3284 | nfr = msg->msg; |
588cd7b5 | 3285 | nfr->cookie = fr->cookie; |
81a76618 | 3286 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3287 | nfr->reason = reason; |
745bfd5e | 3288 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3289 | nfr->duration_sec = htonl(fr->duration_sec); |
3290 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3291 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3292 | nfr->match_len = htons(match_len); | |
3293 | nfr->packet_count = htonll(fr->packet_count); | |
3294 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3295 | break; |
3296 | } | |
3297 | ||
3298 | default: | |
428b2edd | 3299 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3300 | } |
3301 | ||
3302 | return msg; | |
3303 | } | |
3304 | ||
6409e008 BP |
3305 | /* The caller has done basic initialization of '*pin'; the other output |
3306 | * arguments needs to be initialized. */ | |
3307 | static enum ofperr | |
77ab5fd2 | 3308 | decode_nx_packet_in2(const struct ofp_header *oh, bool loose, |
6409e008 | 3309 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3310 | size_t *total_len, uint32_t *buffer_id, |
3311 | struct ofpbuf *continuation) | |
6409e008 BP |
3312 | { |
3313 | *total_len = 0; | |
3314 | *buffer_id = UINT32_MAX; | |
3315 | ||
3316 | struct ofpbuf properties; | |
3317 | ofpbuf_use_const(&properties, oh, ntohs(oh->length)); | |
3318 | ofpraw_pull_assert(&properties); | |
3319 | ||
3320 | while (properties.size > 0) { | |
3321 | struct ofpbuf payload; | |
3322 | uint64_t type; | |
3323 | ||
3324 | enum ofperr error = ofpprop_pull(&properties, &payload, &type); | |
3325 | if (error) { | |
3326 | return error; | |
3327 | } | |
3328 | ||
3329 | switch (type) { | |
3330 | case NXPINT_PACKET: | |
3331 | pin->packet = payload.msg; | |
4adaf182 | 3332 | pin->packet_len = ofpbuf_msgsize(&payload); |
6409e008 BP |
3333 | break; |
3334 | ||
3335 | case NXPINT_FULL_LEN: { | |
3336 | uint32_t u32; | |
3337 | error = ofpprop_parse_u32(&payload, &u32); | |
3338 | *total_len = u32; | |
3339 | break; | |
3340 | } | |
3341 | ||
3342 | case NXPINT_BUFFER_ID: | |
3343 | error = ofpprop_parse_u32(&payload, buffer_id); | |
3344 | break; | |
3345 | ||
3346 | case NXPINT_TABLE_ID: | |
3347 | error = ofpprop_parse_u8(&payload, &pin->table_id); | |
3348 | break; | |
3349 | ||
3350 | case NXPINT_COOKIE: | |
3351 | error = ofpprop_parse_be64(&payload, &pin->cookie); | |
3352 | break; | |
3353 | ||
3354 | case NXPINT_REASON: { | |
3355 | uint8_t reason; | |
3356 | error = ofpprop_parse_u8(&payload, &reason); | |
3357 | pin->reason = reason; | |
3358 | break; | |
3359 | } | |
3360 | ||
3361 | case NXPINT_METADATA: | |
3362 | error = oxm_decode_match(payload.msg, ofpbuf_msgsize(&payload), | |
3363 | &pin->flow_metadata); | |
3364 | break; | |
3365 | ||
bdcad671 BP |
3366 | case NXPINT_USERDATA: |
3367 | pin->userdata = payload.msg; | |
3368 | pin->userdata_len = ofpbuf_msgsize(&payload); | |
3369 | break; | |
3370 | ||
77ab5fd2 BP |
3371 | case NXPINT_CONTINUATION: |
3372 | if (continuation) { | |
3373 | error = ofpprop_parse_nested(&payload, continuation); | |
3374 | } | |
3375 | break; | |
3376 | ||
6409e008 | 3377 | default: |
77ab5fd2 | 3378 | error = OFPPROP_UNKNOWN(loose, "NX_PACKET_IN2", type); |
6409e008 BP |
3379 | break; |
3380 | } | |
3381 | if (error) { | |
3382 | return error; | |
3383 | } | |
3384 | } | |
3385 | ||
4adaf182 | 3386 | if (!pin->packet_len) { |
6409e008 BP |
3387 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 lacks packet"); |
3388 | return OFPERR_OFPBRC_BAD_LEN; | |
3389 | } else if (!*total_len) { | |
4adaf182 BP |
3390 | *total_len = pin->packet_len; |
3391 | } else if (*total_len < pin->packet_len) { | |
6409e008 BP |
3392 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 claimed full_len < len"); |
3393 | return OFPERR_OFPBRC_BAD_LEN; | |
3394 | } | |
3395 | ||
3396 | return 0; | |
3397 | } | |
3398 | ||
9bfe9334 | 3399 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
77ab5fd2 BP |
3400 | * 'pin->packet' and 'pin->packet_len' with the part of the packet actually |
3401 | * included in the message. If 'total_lenp' is nonnull, populates | |
3402 | * '*total_lenp' with the original length of the packet (which is larger than | |
3403 | * 'packet->len' if only part of the packet was included). If 'buffer_idp' is | |
3404 | * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it | |
9bfe9334 BP |
3405 | * was not buffered). |
3406 | * | |
77ab5fd2 BP |
3407 | * Populates 'continuation', if nonnull, with the continuation data from the |
3408 | * packet-in (an empty buffer, if 'oh' did not contain continuation data). The | |
3409 | * format of this data is supposed to be opaque to anything other than | |
3410 | * ovs-vswitchd, so that in any other process the only reasonable use of this | |
3411 | * data is to be copied into an NXT_RESUME message via ofputil_encode_resume(). | |
3412 | * | |
3413 | * This function points 'pin->packet' into 'oh', so the caller should not free | |
3414 | * it separately from the original OpenFlow message. This is also true for | |
3415 | * 'pin->userdata' (which could also end up NULL if there is no userdata). | |
3416 | * | |
9bfe9334 | 3417 | * Returns 0 if successful, otherwise an OpenFlow error code. */ |
f7cc6bd8 | 3418 | enum ofperr |
77ab5fd2 | 3419 | ofputil_decode_packet_in(const struct ofp_header *oh, bool loose, |
9bfe9334 | 3420 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3421 | size_t *total_lenp, uint32_t *buffer_idp, |
3422 | struct ofpbuf *continuation) | |
65120a8a | 3423 | { |
77ab5fd2 BP |
3424 | uint32_t buffer_id; |
3425 | size_t total_len; | |
3426 | ||
65120a8a | 3427 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3428 | pin->cookie = OVS_BE64_MAX; |
77ab5fd2 BP |
3429 | if (continuation) { |
3430 | ofpbuf_use_const(continuation, NULL, 0); | |
3431 | } | |
65120a8a | 3432 | |
0a2869d5 BP |
3433 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3434 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3435 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3436 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3437 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3438 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3439 | : NULL); | |
3440 | enum ofperr error = oxm_pull_match_loose(&b, &pin->flow_metadata); | |
7cfb9651 SH |
3441 | if (error) { |
3442 | return error; | |
3443 | } | |
3444 | ||
3445 | if (!ofpbuf_try_pull(&b, 2)) { | |
3446 | return OFPERR_OFPBRC_BAD_LEN; | |
3447 | } | |
3448 | ||
43948fa5 BP |
3449 | pin->reason = opi->reason; |
3450 | pin->table_id = opi->table_id; | |
77ab5fd2 BP |
3451 | buffer_id = ntohl(opi->buffer_id); |
3452 | total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3453 | if (cookie) { |
3454 | pin->cookie = *cookie; | |
2e1ae200 | 3455 | } |
7cfb9651 | 3456 | |
50dcbd8e | 3457 | pin->packet = b.data; |
4adaf182 | 3458 | pin->packet_len = b.size; |
7cfb9651 | 3459 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3460 | const struct ofp10_packet_in *opi; |
982697a4 | 3461 | |
31a9e63f | 3462 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a | 3463 | |
95022b47 | 3464 | pin->packet = CONST_CAST(uint8_t *, opi->data); |
4adaf182 | 3465 | pin->packet_len = b.size; |
65120a8a | 3466 | |
50dcbd8e | 3467 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3468 | match_set_in_port(&pin->flow_metadata, |
3469 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3470 | pin->reason = opi->reason; |
77ab5fd2 BP |
3471 | buffer_id = ntohl(opi->buffer_id); |
3472 | total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3473 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3474 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3475 | ofp_port_t in_port; |
4d197ebb BP |
3476 | enum ofperr error; |
3477 | ||
3478 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3479 | ||
6fd6ed71 | 3480 | pin->packet = b.data; |
4adaf182 | 3481 | pin->packet_len = b.size; |
4d197ebb | 3482 | |
77ab5fd2 | 3483 | buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3484 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3485 | if (error) { |
3486 | return error; | |
3487 | } | |
50dcbd8e JG |
3488 | match_init_catchall(&pin->flow_metadata); |
3489 | match_set_in_port(&pin->flow_metadata, in_port); | |
77ab5fd2 | 3490 | total_len = ntohs(opi->total_len); |
4d197ebb BP |
3491 | pin->reason = opi->reason; |
3492 | pin->table_id = opi->table_id; | |
982697a4 | 3493 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3494 | const struct nx_packet_in *npi; |
54834960 EJ |
3495 | int error; |
3496 | ||
54834960 | 3497 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3498 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3499 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3500 | if (error) { |
3501 | return error; | |
3502 | } | |
3503 | ||
3504 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3505 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3506 | } |
3507 | ||
54834960 EJ |
3508 | pin->reason = npi->reason; |
3509 | pin->table_id = npi->table_id; | |
3510 | pin->cookie = npi->cookie; | |
3511 | ||
77ab5fd2 BP |
3512 | buffer_id = ntohl(npi->buffer_id); |
3513 | total_len = ntohs(npi->total_len); | |
7cfb9651 | 3514 | |
50dcbd8e | 3515 | pin->packet = b.data; |
4adaf182 | 3516 | pin->packet_len = b.size; |
77ab5fd2 BP |
3517 | } else if (raw == OFPRAW_NXT_PACKET_IN2 || raw == OFPRAW_NXT_RESUME) { |
3518 | enum ofperr error = decode_nx_packet_in2(oh, loose, pin, &total_len, | |
3519 | &buffer_id, continuation); | |
3520 | if (error) { | |
3521 | return error; | |
3522 | } | |
65120a8a | 3523 | } else { |
428b2edd | 3524 | OVS_NOT_REACHED(); |
65120a8a EJ |
3525 | } |
3526 | ||
77ab5fd2 BP |
3527 | if (total_lenp) { |
3528 | *total_lenp = total_len; | |
3529 | } | |
3530 | if (buffer_idp) { | |
3531 | *buffer_idp = buffer_id; | |
3532 | } | |
3533 | ||
65120a8a EJ |
3534 | return 0; |
3535 | } | |
3536 | ||
9bfe9334 BP |
3537 | static int |
3538 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3539 | enum ofp_version version) | |
3540 | { | |
3541 | switch (reason) { | |
3542 | case OFPR_NO_MATCH: | |
3543 | case OFPR_ACTION: | |
3544 | case OFPR_INVALID_TTL: | |
3545 | return reason; | |
3546 | ||
3547 | case OFPR_ACTION_SET: | |
3548 | case OFPR_GROUP: | |
3549 | case OFPR_PACKET_OUT: | |
3550 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3551 | ||
3552 | case OFPR_EXPLICIT_MISS: | |
3553 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3554 | ||
3555 | case OFPR_IMPLICIT_MISS: | |
3556 | return OFPR_NO_MATCH; | |
3557 | ||
3558 | case OFPR_N_REASONS: | |
3559 | default: | |
3560 | OVS_NOT_REACHED(); | |
3561 | } | |
3562 | } | |
3563 | ||
77ab5fd2 BP |
3564 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this |
3565 | * function omits it. The caller can add it itself if desired. */ | |
3566 | static void | |
3567 | ofputil_put_packet_in(const struct ofputil_packet_in *pin, | |
3568 | enum ofp_version version, uint32_t buffer_id, | |
3569 | size_t include_bytes, struct ofpbuf *msg) | |
3570 | { | |
3571 | /* Add packet properties. */ | |
3572 | ofpprop_put(msg, NXPINT_PACKET, pin->packet, include_bytes); | |
3573 | if (include_bytes != pin->packet_len) { | |
3574 | ofpprop_put_u32(msg, NXPINT_FULL_LEN, pin->packet_len); | |
3575 | } | |
3576 | if (buffer_id != UINT32_MAX) { | |
3577 | ofpprop_put_u32(msg, NXPINT_BUFFER_ID, buffer_id); | |
3578 | } | |
3579 | ||
3580 | /* Add flow properties. */ | |
3581 | ofpprop_put_u8(msg, NXPINT_TABLE_ID, pin->table_id); | |
3582 | if (pin->cookie != OVS_BE64_MAX) { | |
3583 | ofpprop_put_be64(msg, NXPINT_COOKIE, pin->cookie); | |
3584 | } | |
3585 | ||
3586 | /* Add other properties. */ | |
3587 | ofpprop_put_u8(msg, NXPINT_REASON, | |
3588 | encode_packet_in_reason(pin->reason, version)); | |
3589 | ||
3590 | size_t start = ofpprop_start(msg, NXPINT_METADATA); | |
3591 | oxm_put_raw(msg, &pin->flow_metadata, version); | |
3592 | ofpprop_end(msg, start); | |
3593 | } | |
3594 | ||
3595 | static void | |
3596 | put_actions_property(struct ofpbuf *msg, uint64_t prop_type, | |
3597 | enum ofp_version version, | |
3598 | const struct ofpact *actions, size_t actions_len) | |
3599 | { | |
3600 | if (actions_len) { | |
3601 | size_t start = ofpprop_start_nested(msg, prop_type); | |
3602 | ofpacts_put_openflow_actions(actions, actions_len, msg, version); | |
3603 | ofpprop_end(msg, start); | |
3604 | } | |
3605 | } | |
3606 | ||
3607 | enum nx_continuation_prop_type { | |
3608 | NXCPT_BRIDGE = 0x8000, | |
3609 | NXCPT_STACK, | |
3610 | NXCPT_MIRRORS, | |
3611 | NXCPT_CONNTRACKED, | |
3612 | NXCPT_TABLE_ID, | |
3613 | NXCPT_COOKIE, | |
3614 | NXCPT_ACTIONS, | |
3615 | NXCPT_ACTION_SET, | |
3616 | }; | |
3617 | ||
3618 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this | |
3619 | * function omits it. The caller can add it itself if desired. */ | |
3620 | static void | |
3621 | ofputil_put_packet_in_private(const struct ofputil_packet_in_private *pin, | |
3622 | enum ofp_version version, uint32_t buffer_id, | |
3623 | size_t include_bytes, struct ofpbuf *msg) | |
3624 | { | |
3625 | ofputil_put_packet_in(&pin->public, version, buffer_id, | |
3626 | include_bytes, msg); | |
3627 | ||
3628 | size_t continuation_ofs = ofpprop_start_nested(msg, NXPINT_CONTINUATION); | |
3629 | size_t inner_ofs = msg->size; | |
3630 | ||
3631 | if (!uuid_is_zero(&pin->bridge)) { | |
3632 | ofpprop_put_uuid(msg, NXCPT_BRIDGE, &pin->bridge); | |
3633 | } | |
3634 | ||
3635 | for (size_t i = 0; i < pin->n_stack; i++) { | |
3636 | const union mf_subvalue *s = &pin->stack[i]; | |
3637 | size_t ofs; | |
3638 | for (ofs = 0; ofs < sizeof *s; ofs++) { | |
3639 | if (s->u8[ofs]) { | |
3640 | break; | |
3641 | } | |
3642 | } | |
3643 | ||
3644 | ofpprop_put(msg, NXCPT_STACK, &s->u8[ofs], sizeof *s - ofs); | |
3645 | } | |
3646 | ||
3647 | if (pin->mirrors) { | |
3648 | ofpprop_put_u32(msg, NXCPT_MIRRORS, pin->mirrors); | |
3649 | } | |
3650 | ||
3651 | if (pin->conntracked) { | |
3652 | ofpprop_put_flag(msg, NXCPT_CONNTRACKED); | |
3653 | } | |
3654 | ||
3655 | if (pin->actions_len) { | |
3656 | /* Divide 'pin->actions' into groups that begins with an | |
3657 | * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and | |
3658 | * NXCPT_COOKIE property (if either has changed; each is initially | |
3659 | * assumed 0), then a NXCPT_ACTIONS property with the grouped | |
3660 | * actions. | |
3661 | * | |
3662 | * The alternative is to make OFPACT_UNROLL_XLATE public. We can | |
3663 | * always do that later, since this is a private property. */ | |
3664 | const struct ofpact *const end = ofpact_end(pin->actions, | |
3665 | pin->actions_len); | |
3666 | const struct ofpact_unroll_xlate *unroll = NULL; | |
3667 | uint8_t table_id = 0; | |
3668 | ovs_be64 cookie = 0; | |
3669 | ||
3670 | const struct ofpact *a; | |
3671 | for (a = pin->actions; ; a = ofpact_next(a)) { | |
3672 | if (a == end || a->type == OFPACT_UNROLL_XLATE) { | |
3673 | if (unroll) { | |
3674 | if (table_id != unroll->rule_table_id) { | |
3675 | ofpprop_put_u8(msg, NXCPT_TABLE_ID, | |
3676 | unroll->rule_table_id); | |
3677 | table_id = unroll->rule_table_id; | |
3678 | } | |
3679 | if (cookie != unroll->rule_cookie) { | |
3680 | ofpprop_put_be64(msg, NXCPT_COOKIE, | |
3681 | unroll->rule_cookie); | |
3682 | cookie = unroll->rule_cookie; | |
3683 | } | |
3684 | } | |
3685 | ||
3686 | const struct ofpact *start | |
3687 | = unroll ? ofpact_next(&unroll->ofpact) : pin->actions; | |
3688 | put_actions_property(msg, NXCPT_ACTIONS, version, | |
3689 | start, (a - start) * sizeof *a); | |
3690 | ||
3691 | if (a == end) { | |
3692 | break; | |
3693 | } | |
3694 | unroll = ofpact_get_UNROLL_XLATE(a); | |
3695 | } | |
3696 | } | |
3697 | } | |
3698 | ||
3699 | if (pin->action_set_len) { | |
3700 | size_t start = ofpprop_start_nested(msg, NXCPT_ACTION_SET); | |
3701 | ofpacts_put_openflow_actions(pin->action_set, | |
3702 | pin->action_set_len, msg, version); | |
3703 | ofpprop_end(msg, start); | |
3704 | } | |
3705 | ||
3706 | if (msg->size > inner_ofs) { | |
3707 | ofpprop_end(msg, continuation_ofs); | |
3708 | } else { | |
3709 | msg->size = continuation_ofs; | |
3710 | } | |
3711 | } | |
3712 | ||
0f83fea0 | 3713 | static struct ofpbuf * |
9bfe9334 BP |
3714 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin, |
3715 | uint32_t buffer_id) | |
0f83fea0 BP |
3716 | { |
3717 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3718 | struct ofpbuf *msg; |
0f83fea0 | 3719 | |
9bfe9334 | 3720 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
4adaf182 | 3721 | htonl(0), pin->packet_len); |
9bfe9334 | 3722 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); |
4adaf182 | 3723 | opi->total_len = htons(pin->packet_len); |
50dcbd8e | 3724 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 BP |
3725 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
3726 | opi->buffer_id = htonl(buffer_id); | |
0f83fea0 | 3727 | |
9bfe9334 | 3728 | return msg; |
0f83fea0 BP |
3729 | } |
3730 | ||
3731 | static struct ofpbuf * | |
9bfe9334 | 3732 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
6409e008 | 3733 | enum ofp_version version, uint32_t buffer_id) |
0f83fea0 BP |
3734 | { |
3735 | struct nx_packet_in *npi; | |
9bfe9334 | 3736 | struct ofpbuf *msg; |
0f83fea0 BP |
3737 | size_t match_len; |
3738 | ||
0f83fea0 | 3739 | /* The final argument is just an estimate of the space required. */ |
6409e008 | 3740 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, version, |
4adaf182 | 3741 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
9bfe9334 BP |
3742 | ofpbuf_put_zeros(msg, sizeof *npi); |
3743 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3744 | ofpbuf_put_zeros(msg, 2); | |
3745 | ||
3746 | npi = msg->msg; | |
3747 | npi->buffer_id = htonl(buffer_id); | |
4adaf182 | 3748 | npi->total_len = htons(pin->packet_len); |
6409e008 | 3749 | npi->reason = encode_packet_in_reason(pin->reason, version); |
0f83fea0 BP |
3750 | npi->table_id = pin->table_id; |
3751 | npi->cookie = pin->cookie; | |
3752 | npi->match_len = htons(match_len); | |
3753 | ||
9bfe9334 | 3754 | return msg; |
0f83fea0 BP |
3755 | } |
3756 | ||
6409e008 | 3757 | static struct ofpbuf * |
77ab5fd2 | 3758 | ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private *pin, |
6409e008 BP |
3759 | enum ofp_version version, uint32_t buffer_id, |
3760 | size_t include_bytes) | |
3761 | { | |
3762 | /* 'extra' is just an estimate of the space required. */ | |
77ab5fd2 BP |
3763 | size_t extra = (pin->public.packet_len |
3764 | + NXM_TYPICAL_LEN /* flow_metadata */ | |
3765 | + pin->n_stack * 16 | |
3766 | + pin->actions_len | |
3767 | + pin->action_set_len | |
3768 | + 256); /* fudge factor */ | |
6409e008 BP |
3769 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2, version, |
3770 | htonl(0), extra); | |
3771 | ||
77ab5fd2 BP |
3772 | ofputil_put_packet_in_private(pin, version, buffer_id, include_bytes, msg); |
3773 | if (pin->public.userdata_len) { | |
3774 | ofpprop_put(msg, NXPINT_USERDATA, pin->public.userdata, | |
3775 | pin->public.userdata_len); | |
bdcad671 BP |
3776 | } |
3777 | ||
6409e008 BP |
3778 | ofpmsg_update_length(msg); |
3779 | return msg; | |
3780 | } | |
3781 | ||
4d197ebb | 3782 | static struct ofpbuf * |
9bfe9334 BP |
3783 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin, |
3784 | uint32_t buffer_id) | |
4d197ebb BP |
3785 | { |
3786 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3787 | struct ofpbuf *msg; |
4d197ebb | 3788 | |
9bfe9334 | 3789 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
4adaf182 | 3790 | htonl(0), pin->packet_len); |
9bfe9334 BP |
3791 | opi = ofpbuf_put_zeros(msg, sizeof *opi); |
3792 | opi->buffer_id = htonl(buffer_id); | |
3793 | opi->in_port = ofputil_port_to_ofp11( | |
3794 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3795 | opi->in_phy_port = opi->in_port; |
4adaf182 | 3796 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3797 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); |
4d197ebb BP |
3798 | opi->table_id = pin->table_id; |
3799 | ||
9bfe9334 | 3800 | return msg; |
4d197ebb BP |
3801 | } |
3802 | ||
0f83fea0 BP |
3803 | static struct ofpbuf * |
3804 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
9bfe9334 BP |
3805 | enum ofp_version version, |
3806 | uint32_t buffer_id) | |
0f83fea0 | 3807 | { |
43948fa5 BP |
3808 | enum ofpraw raw = (version >= OFP13_VERSION |
3809 | ? OFPRAW_OFPT13_PACKET_IN | |
3810 | : OFPRAW_OFPT12_PACKET_IN); | |
3811 | struct ofpbuf *msg; | |
0f83fea0 | 3812 | |
0f83fea0 | 3813 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3814 | msg = ofpraw_alloc_xid(raw, version, |
4adaf182 | 3815 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3816 | |
43948fa5 | 3817 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
9bfe9334 | 3818 | opi->buffer_id = htonl(buffer_id); |
4adaf182 | 3819 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3820 | opi->reason = encode_packet_in_reason(pin->reason, version); |
43948fa5 | 3821 | opi->table_id = pin->table_id; |
9bfe9334 | 3822 | |
43948fa5 BP |
3823 | if (version >= OFP13_VERSION) { |
3824 | ovs_be64 cookie = pin->cookie; | |
3825 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3826 | } |
3827 | ||
43948fa5 BP |
3828 | oxm_put_match(msg, &pin->flow_metadata, version); |
3829 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3830 | |
3831 | return msg; | |
0f83fea0 BP |
3832 | } |
3833 | ||
77ab5fd2 BP |
3834 | /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message |
3835 | * for 'protocol', using the packet-in format specified by 'packet_in_format'. | |
9bfe9334 BP |
3836 | * |
3837 | * If 'pkt_buf' is nonnull and 'max_len' allows the packet to be buffered, this | |
3838 | * function will attempt to obtain a buffer ID from 'pktbuf' and truncate the | |
3839 | * packet to 'max_len' bytes. Otherwise, or if 'pktbuf' doesn't have a free | |
77ab5fd2 BP |
3840 | * buffer, it will send the whole packet without buffering. |
3841 | * | |
3842 | * This function is really meant only for use by ovs-vswitchd. To any other | |
3843 | * code, the "continuation" data, i.e. the data that is in struct | |
3844 | * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed | |
3845 | * to be opaque (and it might change from one OVS version to another). Thus, | |
3846 | * if any other code wants to encode a packet-in, it should use a non-"private" | |
3847 | * version of this function. (Such a version doesn't currently exist because | |
3848 | * only ovs-vswitchd currently wants to encode packet-ins. If you need one, | |
3849 | * write it...) */ | |
ebb57021 | 3850 | struct ofpbuf * |
77ab5fd2 BP |
3851 | ofputil_encode_packet_in_private(const struct ofputil_packet_in_private *pin, |
3852 | enum ofputil_protocol protocol, | |
3853 | enum nx_packet_in_format packet_in_format, | |
3854 | uint16_t max_len, struct pktbuf *pktbuf) | |
ebb57021 | 3855 | { |
9bfe9334 BP |
3856 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3857 | ||
3858 | /* Get buffer ID. */ | |
77ab5fd2 | 3859 | ofp_port_t in_port = pin->public.flow_metadata.flow.in_port.ofp_port; |
9bfe9334 | 3860 | uint32_t buffer_id = (max_len != OFPCML12_NO_BUFFER && pktbuf |
77ab5fd2 BP |
3861 | ? pktbuf_save(pktbuf, pin->public.packet, |
3862 | pin->public.packet_len, in_port) | |
9bfe9334 | 3863 | : UINT32_MAX); |
ebb57021 | 3864 | |
6409e008 BP |
3865 | /* Calculate the number of bytes of the packet to include in the |
3866 | * packet-in: | |
3867 | * | |
3868 | * - If not buffered, the whole thing. | |
3869 | * | |
3870 | * - Otherwise, no more than 'max_len' bytes. */ | |
3871 | size_t include_bytes = (buffer_id == UINT32_MAX | |
77ab5fd2 BP |
3872 | ? pin->public.packet_len |
3873 | : MIN(max_len, pin->public.packet_len)); | |
6409e008 | 3874 | |
9bfe9334 | 3875 | struct ofpbuf *msg; |
6409e008 BP |
3876 | switch (packet_in_format) { |
3877 | case NXPIF_STANDARD: | |
3878 | switch (protocol) { | |
3879 | case OFPUTIL_P_OF10_STD: | |
3880 | case OFPUTIL_P_OF10_STD_TID: | |
3881 | case OFPUTIL_P_OF10_NXM: | |
3882 | case OFPUTIL_P_OF10_NXM_TID: | |
77ab5fd2 | 3883 | msg = ofputil_encode_ofp10_packet_in(&pin->public, buffer_id); |
6409e008 | 3884 | break; |
2e1ae200 | 3885 | |
6409e008 | 3886 | case OFPUTIL_P_OF11_STD: |
77ab5fd2 | 3887 | msg = ofputil_encode_ofp11_packet_in(&pin->public, buffer_id); |
6409e008 BP |
3888 | break; |
3889 | ||
3890 | case OFPUTIL_P_OF12_OXM: | |
3891 | case OFPUTIL_P_OF13_OXM: | |
3892 | case OFPUTIL_P_OF14_OXM: | |
3893 | case OFPUTIL_P_OF15_OXM: | |
77ab5fd2 | 3894 | msg = ofputil_encode_ofp12_packet_in(&pin->public, version, buffer_id); |
6409e008 BP |
3895 | break; |
3896 | ||
3897 | default: | |
3898 | OVS_NOT_REACHED(); | |
3899 | } | |
4d197ebb | 3900 | break; |
d94240ec | 3901 | |
6409e008 | 3902 | case NXPIF_NXT_PACKET_IN: |
77ab5fd2 | 3903 | msg = ofputil_encode_nx_packet_in(&pin->public, version, buffer_id); |
0f83fea0 BP |
3904 | break; |
3905 | ||
6409e008 BP |
3906 | case NXPIF_NXT_PACKET_IN2: |
3907 | return ofputil_encode_nx_packet_in2(pin, version, buffer_id, | |
3908 | include_bytes); | |
3909 | ||
0f83fea0 | 3910 | default: |
428b2edd | 3911 | OVS_NOT_REACHED(); |
54834960 | 3912 | } |
54834960 | 3913 | |
77ab5fd2 | 3914 | ofpbuf_put(msg, pin->public.packet, include_bytes); |
9bfe9334 BP |
3915 | ofpmsg_update_length(msg); |
3916 | return msg; | |
ebb57021 BP |
3917 | } |
3918 | ||
5014a89d BP |
3919 | /* Returns a string form of 'reason'. The return value is either a statically |
3920 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3921 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3922 | const char * |
5014a89d BP |
3923 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3924 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3925 | { |
7c1a76a4 BP |
3926 | switch (reason) { |
3927 | case OFPR_NO_MATCH: | |
3928 | return "no_match"; | |
3929 | case OFPR_ACTION: | |
3930 | return "action"; | |
3931 | case OFPR_INVALID_TTL: | |
3932 | return "invalid_ttl"; | |
424467c6 SS |
3933 | case OFPR_ACTION_SET: |
3934 | return "action_set"; | |
3935 | case OFPR_GROUP: | |
3936 | return "group"; | |
3937 | case OFPR_PACKET_OUT: | |
3938 | return "packet_out"; | |
9bfe9334 BP |
3939 | case OFPR_EXPLICIT_MISS: |
3940 | case OFPR_IMPLICIT_MISS: | |
3941 | return ""; | |
7c1a76a4 BP |
3942 | |
3943 | case OFPR_N_REASONS: | |
3944 | default: | |
5014a89d BP |
3945 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3946 | return reasonbuf; | |
7c1a76a4 BP |
3947 | } |
3948 | } | |
3949 | ||
3950 | bool | |
3951 | ofputil_packet_in_reason_from_string(const char *s, | |
3952 | enum ofp_packet_in_reason *reason) | |
3953 | { | |
3954 | int i; | |
3955 | ||
3956 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3957 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3958 | const char *reason_s; | |
3959 | ||
3960 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3961 | sizeof reasonbuf); | |
3962 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3963 | *reason = i; |
3964 | return true; | |
3965 | } | |
3966 | } | |
3967 | return false; | |
3968 | } | |
3969 | ||
77ab5fd2 BP |
3970 | /* Returns a newly allocated NXT_RESUME message for 'pin', with the given |
3971 | * 'continuation', for 'protocol'. This message is suitable for resuming the | |
3972 | * pipeline traveral of the packet represented by 'pin', if sent to the switch | |
3973 | * from which 'pin' was received. */ | |
3974 | struct ofpbuf * | |
3975 | ofputil_encode_resume(const struct ofputil_packet_in *pin, | |
3976 | const struct ofpbuf *continuation, | |
3977 | enum ofputil_protocol protocol) | |
3978 | { | |
3979 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
3980 | size_t extra = pin->packet_len + NXM_TYPICAL_LEN + continuation->size; | |
3981 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_RESUME, version, | |
3982 | 0, extra); | |
3983 | ofputil_put_packet_in(pin, version, UINT32_MAX, pin->packet_len, msg); | |
3984 | ofpprop_put_nested(msg, NXPINT_CONTINUATION, continuation); | |
3985 | ofpmsg_update_length(msg); | |
3986 | return msg; | |
3987 | } | |
3988 | ||
3989 | static enum ofperr | |
3990 | parse_subvalue_prop(const struct ofpbuf *property, union mf_subvalue *sv) | |
3991 | { | |
3992 | unsigned int len = ofpbuf_msgsize(property); | |
3993 | if (len > sizeof *sv) { | |
3994 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXCPT_STACK property has bad length %u", | |
3995 | len); | |
3996 | return OFPERR_OFPBPC_BAD_LEN; | |
3997 | } | |
3998 | memset(sv, 0, sizeof *sv); | |
3999 | memcpy(&sv->u8[sizeof *sv - len], property->msg, len); | |
4000 | return 0; | |
4001 | } | |
4002 | ||
4003 | static enum ofperr | |
4004 | parse_actions_property(struct ofpbuf *property, enum ofp_version version, | |
4005 | struct ofpbuf *ofpacts) | |
4006 | { | |
4007 | if (!ofpbuf_try_pull(property, ROUND_UP(ofpbuf_headersize(property), 8))) { | |
4008 | VLOG_WARN_RL(&bad_ofmsg_rl, "actions property has bad length %"PRIu32, | |
4009 | property->size); | |
4010 | return OFPERR_OFPBPC_BAD_LEN; | |
4011 | } | |
4012 | ||
4013 | return ofpacts_pull_openflow_actions(property, property->size, | |
4014 | version, ofpacts); | |
4015 | } | |
4016 | ||
4017 | /* This is like ofputil_decode_packet_in(), except that it decodes the | |
4018 | * continuation data into 'pin'. The format of this data is supposed to be | |
4019 | * opaque to any process other than ovs-vswitchd, so this function should not | |
4020 | * be used outside ovs-vswitchd. | |
4021 | * | |
4022 | * When successful, 'pin' contains some dynamically allocated data. Call | |
4023 | * ofputil_packet_in_private_destroy() to free this data. */ | |
4024 | enum ofperr | |
4025 | ofputil_decode_packet_in_private(const struct ofp_header *oh, bool loose, | |
4026 | struct ofputil_packet_in_private *pin, | |
4027 | size_t *total_len, uint32_t *buffer_id) | |
4028 | { | |
4029 | memset(pin, 0, sizeof *pin); | |
4030 | ||
4031 | struct ofpbuf continuation; | |
4032 | enum ofperr error; | |
4033 | error = ofputil_decode_packet_in(oh, loose, &pin->public, total_len, | |
4034 | buffer_id, &continuation); | |
4035 | if (error) { | |
4036 | return error; | |
4037 | } | |
4038 | ||
4039 | struct ofpbuf actions, action_set; | |
4040 | ofpbuf_init(&actions, 0); | |
4041 | ofpbuf_init(&action_set, 0); | |
4042 | ||
4043 | uint8_t table_id = 0; | |
4044 | ovs_be64 cookie = 0; | |
4045 | ||
4046 | size_t allocated_stack = 0; | |
4047 | ||
4048 | while (continuation.size > 0) { | |
4049 | struct ofpbuf payload; | |
4050 | uint64_t type; | |
4051 | ||
4052 | error = ofpprop_pull(&continuation, &payload, &type); | |
4053 | ovs_assert(!error); | |
4054 | ||
4055 | switch (type) { | |
4056 | case NXCPT_BRIDGE: | |
4057 | error = ofpprop_parse_uuid(&payload, &pin->bridge); | |
4058 | break; | |
4059 | ||
4060 | case NXCPT_STACK: | |
4061 | if (pin->n_stack >= allocated_stack) { | |
4062 | pin->stack = x2nrealloc(pin->stack, &allocated_stack, | |
4063 | sizeof *pin->stack); | |
4064 | } | |
4065 | error = parse_subvalue_prop(&payload, | |
4066 | &pin->stack[pin->n_stack++]); | |
4067 | break; | |
4068 | ||
4069 | case NXCPT_MIRRORS: | |
4070 | error = ofpprop_parse_u32(&payload, &pin->mirrors); | |
4071 | break; | |
4072 | ||
4073 | case NXCPT_CONNTRACKED: | |
4074 | pin->conntracked = true; | |
4075 | break; | |
4076 | ||
4077 | case NXCPT_TABLE_ID: | |
4078 | error = ofpprop_parse_u8(&payload, &table_id); | |
4079 | break; | |
4080 | ||
4081 | case NXCPT_COOKIE: | |
4082 | error = ofpprop_parse_be64(&payload, &cookie); | |
4083 | break; | |
4084 | ||
4085 | case NXCPT_ACTIONS: { | |
4086 | struct ofpact_unroll_xlate *unroll | |
4087 | = ofpact_put_UNROLL_XLATE(&actions); | |
4088 | unroll->rule_table_id = table_id; | |
4089 | unroll->rule_cookie = cookie; | |
4090 | error = parse_actions_property(&payload, oh->version, &actions); | |
4091 | break; | |
4092 | } | |
4093 | ||
4094 | case NXCPT_ACTION_SET: | |
4095 | error = parse_actions_property(&payload, oh->version, &action_set); | |
4096 | break; | |
4097 | ||
4098 | default: | |
4099 | error = OFPPROP_UNKNOWN(loose, "continuation", type); | |
4100 | break; | |
4101 | } | |
4102 | if (error) { | |
4103 | break; | |
4104 | } | |
4105 | } | |
4106 | ||
4107 | pin->actions_len = actions.size; | |
4108 | pin->actions = ofpbuf_steal_data(&actions); | |
4109 | pin->action_set_len = action_set.size; | |
4110 | pin->action_set = ofpbuf_steal_data(&action_set); | |
4111 | ||
4112 | if (error) { | |
4113 | ofputil_packet_in_private_destroy(pin); | |
4114 | } | |
4115 | ||
4116 | return 0; | |
4117 | } | |
4118 | ||
4119 | /* Frees data in 'pin' that is dynamically allocated by | |
4120 | * ofputil_decode_packet_in_private(). | |
4121 | * | |
4122 | * 'pin->public' contains some pointer members that | |
4123 | * ofputil_decode_packet_in_private() doesn't initialize to newly allocated | |
4124 | * data, so this function doesn't free those. */ | |
4125 | void | |
4126 | ofputil_packet_in_private_destroy(struct ofputil_packet_in_private *pin) | |
4127 | { | |
4128 | if (pin) { | |
4129 | free(pin->stack); | |
4130 | free(pin->actions); | |
4131 | free(pin->action_set); | |
4132 | } | |
4133 | } | |
4134 | ||
f25d0cf3 BP |
4135 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
4136 | * 'po'. | |
4137 | * | |
4138 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
4139 | * message's actions. The caller must initialize 'ofpacts' and retains | |
4140 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
4141 | * | |
4142 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
4143 | enum ofperr |
4144 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 4145 | const struct ofp_header *oh, |
f25d0cf3 | 4146 | struct ofpbuf *ofpacts) |
c6a93eb7 | 4147 | { |
0a2869d5 BP |
4148 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4149 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4150 | |
9abca1e5 | 4151 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
4152 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
4153 | enum ofperr error; | |
4154 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
4155 | ||
4156 | po->buffer_id = ntohl(opo->buffer_id); | |
4157 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
4158 | if (error) { | |
4159 | return error; | |
4160 | } | |
4161 | ||
e3f8f887 JR |
4162 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4163 | oh->version, ofpacts); | |
eb5ee596 SH |
4164 | if (error) { |
4165 | return error; | |
4166 | } | |
eb5ee596 | 4167 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 4168 | enum ofperr error; |
31a9e63f | 4169 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
4170 | |
4171 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 4172 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 4173 | |
e3f8f887 JR |
4174 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4175 | oh->version, ofpacts); | |
8a6bc7cd SH |
4176 | if (error) { |
4177 | return error; | |
4178 | } | |
4179 | } else { | |
428b2edd | 4180 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
4181 | } |
4182 | ||
4e022ec0 AW |
4183 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
4184 | && po->in_port != OFPP_LOCAL | |
751c7785 | 4185 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
4186 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
4187 | po->in_port); | |
2e1bfcb6 | 4188 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
4189 | } |
4190 | ||
6fd6ed71 PS |
4191 | po->ofpacts = ofpacts->data; |
4192 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
4193 | |
4194 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
4195 | po->packet = b.data; |
4196 | po->packet_len = b.size; | |
c6a93eb7 BP |
4197 | } else { |
4198 | po->packet = NULL; | |
4199 | po->packet_len = 0; | |
4200 | } | |
4201 | ||
4202 | return 0; | |
4203 | } | |
6c038611 BP |
4204 | \f |
4205 | /* ofputil_phy_port */ | |
4206 | ||
4207 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
4208 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
4209 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4210 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4211 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4212 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4213 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4214 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4215 | ||
4216 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
4217 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
4218 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
4219 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
4220 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
4221 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 4222 | |
9e1fd49b BP |
4223 | static enum netdev_features |
4224 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
4225 | { |
4226 | uint32_t ofp10 = ntohl(ofp10_); | |
4227 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
4228 | } | |
4229 | ||
9e1fd49b BP |
4230 | static ovs_be32 |
4231 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
4232 | { |
4233 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
4234 | } | |
c6a93eb7 | 4235 | |
9e1fd49b BP |
4236 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
4237 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4238 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4239 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4240 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4241 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4242 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4243 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
4244 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
4245 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
4246 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
4247 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
4248 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
4249 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
4250 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
4251 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
4252 | ||
4253 | static enum netdev_features | |
4254 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
4255 | { | |
4256 | return ntohl(ofp11) & 0xffff; | |
4257 | } | |
4258 | ||
4259 | static ovs_be32 | |
4260 | netdev_port_features_to_ofp11(enum netdev_features features) | |
4261 | { | |
4262 | return htonl(features & 0xffff); | |
4263 | } | |
4264 | ||
4265 | static enum ofperr | |
4266 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
4267 | const struct ofp10_phy_port *opp) | |
4268 | { | |
4e022ec0 | 4269 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 4270 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
4271 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
4272 | ||
4273 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
4274 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
4275 | ||
4276 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
4277 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
4278 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
4279 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
4280 | ||
d02a5f8e BP |
4281 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
4282 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
4283 | |
4284 | return 0; | |
4285 | } | |
4286 | ||
4287 | static enum ofperr | |
4288 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
4289 | const struct ofp11_port *op) | |
4290 | { | |
4291 | enum ofperr error; | |
4292 | ||
9e1fd49b BP |
4293 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
4294 | if (error) { | |
4295 | return error; | |
4296 | } | |
74ff3298 | 4297 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
4298 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4299 | ||
4300 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 4301 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
4302 | |
4303 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
4304 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
4305 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
4306 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
4307 | ||
4308 | pp->curr_speed = ntohl(op->curr_speed); | |
4309 | pp->max_speed = ntohl(op->max_speed); | |
4310 | ||
4311 | return 0; | |
4312 | } | |
4313 | ||
8c3cc785 BP |
4314 | static enum ofperr |
4315 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
4316 | struct ofputil_phy_port *pp) | |
4317 | { | |
6fd6ed71 | 4318 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 4319 | |
6fd6ed71 | 4320 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
4321 | return OFPERR_OFPBPC_BAD_LEN; |
4322 | } | |
4323 | ||
4324 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
4325 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
4326 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
4327 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
4328 | ||
4329 | pp->curr_speed = ntohl(eth->curr_speed); | |
4330 | pp->max_speed = ntohl(eth->max_speed); | |
4331 | ||
4332 | return 0; | |
4333 | } | |
4334 | ||
4335 | static enum ofperr | |
4336 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4337 | { | |
0a2869d5 | 4338 | struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op); |
8c3cc785 BP |
4339 | if (!op) { |
4340 | return OFPERR_OFPBRC_BAD_LEN; | |
4341 | } | |
4342 | ||
0a2869d5 | 4343 | size_t len = ntohs(op->length); |
6fd6ed71 | 4344 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
4345 | return OFPERR_OFPBRC_BAD_LEN; |
4346 | } | |
4347 | len -= sizeof *op; | |
8c3cc785 | 4348 | |
0a2869d5 | 4349 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
8c3cc785 BP |
4350 | if (error) { |
4351 | return error; | |
4352 | } | |
74ff3298 | 4353 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
4354 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4355 | ||
4356 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4357 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4358 | ||
0a2869d5 BP |
4359 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
4360 | len); | |
6fd6ed71 | 4361 | while (properties.size > 0) { |
8c3cc785 BP |
4362 | struct ofpbuf payload; |
4363 | enum ofperr error; | |
34a543e3 | 4364 | uint64_t type; |
8c3cc785 | 4365 | |
c5562271 | 4366 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
4367 | if (error) { |
4368 | return error; | |
4369 | } | |
4370 | ||
4371 | switch (type) { | |
4372 | case OFPPDPT14_ETHERNET: | |
4373 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
4374 | break; | |
4375 | ||
4376 | default: | |
34a543e3 | 4377 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
4378 | break; |
4379 | } | |
4380 | ||
4381 | if (error) { | |
4382 | return error; | |
4383 | } | |
4384 | } | |
4385 | ||
4386 | return 0; | |
4387 | } | |
4388 | ||
9e1fd49b BP |
4389 | static void |
4390 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
4391 | struct ofp10_phy_port *opp) | |
4392 | { | |
4393 | memset(opp, 0, sizeof *opp); | |
4394 | ||
4e022ec0 | 4395 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 4396 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4397 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4398 | ||
4399 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
4400 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
4401 | ||
4402 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
4403 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
4404 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
4405 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
4406 | } | |
4407 | ||
4408 | static void | |
4409 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
4410 | struct ofp11_port *op) | |
4411 | { | |
4412 | memset(op, 0, sizeof *op); | |
4413 | ||
4414 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 4415 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4416 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4417 | ||
4418 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4419 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4420 | ||
4421 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
4422 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4423 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
4424 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
4425 | ||
4426 | op->curr_speed = htonl(pp->curr_speed); | |
4427 | op->max_speed = htonl(pp->max_speed); | |
4428 | } | |
4429 | ||
8c3cc785 BP |
4430 | static void |
4431 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
4432 | struct ofpbuf *b) | |
4433 | { | |
4434 | struct ofp14_port *op; | |
4435 | struct ofp14_port_desc_prop_ethernet *eth; | |
4436 | ||
4437 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4438 | ||
4439 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4440 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4441 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 4442 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
4443 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
4444 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4445 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4446 | ||
303721ee | 4447 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
8c3cc785 BP |
4448 | eth->curr = netdev_port_features_to_ofp11(pp->curr); |
4449 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4450 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
4451 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
4452 | eth->curr_speed = htonl(pp->curr_speed); | |
4453 | eth->max_speed = htonl(pp->max_speed); | |
4454 | } | |
4455 | ||
9e1fd49b | 4456 | static void |
2e3fa633 SH |
4457 | ofputil_put_phy_port(enum ofp_version ofp_version, |
4458 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 4459 | { |
2e3fa633 SH |
4460 | switch (ofp_version) { |
4461 | case OFP10_VERSION: { | |
6b0f20ac BP |
4462 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4463 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4464 | break; |
4465 | } | |
4466 | ||
4467 | case OFP11_VERSION: | |
2e1ae200 JR |
4468 | case OFP12_VERSION: |
4469 | case OFP13_VERSION: { | |
6b0f20ac BP |
4470 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4471 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4472 | break; |
4473 | } | |
4474 | ||
c37c0382 | 4475 | case OFP14_VERSION: |
42dccab5 | 4476 | case OFP15_VERSION: |
8c3cc785 | 4477 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4478 | break; |
4479 | ||
2e3fa633 | 4480 | default: |
428b2edd | 4481 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4482 | } |
4483 | } | |
2be393ed | 4484 | |
70ae4f93 BP |
4485 | enum ofperr |
4486 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4487 | ofp_port_t *port) | |
4488 | { | |
0a2869d5 BP |
4489 | struct ofpbuf b = ofpbuf_const_initializer(request, |
4490 | ntohs(request->length)); | |
4491 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
70ae4f93 BP |
4492 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { |
4493 | *port = OFPP_ANY; | |
4494 | return 0; | |
4495 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4496 | ovs_be32 *ofp11_port; | |
4497 | ||
4498 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4499 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4500 | } else { | |
4501 | OVS_NOT_REACHED(); | |
4502 | } | |
4503 | } | |
4504 | ||
4505 | struct ofpbuf * | |
4506 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4507 | ofp_port_t port) | |
4508 | { | |
4509 | struct ofpbuf *request; | |
70ae4f93 BP |
4510 | |
4511 | switch (ofp_version) { | |
4512 | case OFP10_VERSION: | |
4513 | case OFP11_VERSION: | |
4514 | case OFP12_VERSION: | |
4515 | case OFP13_VERSION: | |
4516 | case OFP14_VERSION: | |
4517 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4518 | ofp_version, 0); | |
4519 | break; | |
7448d548 MT |
4520 | case OFP15_VERSION:{ |
4521 | struct ofp15_port_desc_request *req; | |
70ae4f93 BP |
4522 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4523 | ofp_version, 0); | |
7448d548 MT |
4524 | req = ofpbuf_put_zeros(request, sizeof *req); |
4525 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4526 | break; |
7448d548 | 4527 | } |
70ae4f93 BP |
4528 | default: |
4529 | OVS_NOT_REACHED(); | |
4530 | } | |
4531 | ||
4532 | return request; | |
4533 | } | |
4534 | ||
2be393ed | 4535 | void |
e28ac5cf | 4536 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4537 | struct ovs_list *replies) |
2be393ed | 4538 | { |
417e7e66 | 4539 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 4540 | size_t start_ofs = reply->size; |
c37c0382 | 4541 | |
6b0f20ac BP |
4542 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4543 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4544 | } |
9e1fd49b | 4545 | \f |
ad99e2ed BP |
4546 | /* ofputil_switch_config */ |
4547 | ||
4548 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4549 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4550 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4551 | static bool | |
4552 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4553 | struct ofputil_switch_config *config) | |
4554 | { | |
0a2869d5 | 4555 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
ad99e2ed | 4556 | ofpraw_pull_assert(&b); |
ad99e2ed | 4557 | |
0a2869d5 | 4558 | const struct ofp_switch_config *osc = ofpbuf_pull(&b, sizeof *osc); |
ad99e2ed BP |
4559 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; |
4560 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4561 | ||
4562 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4563 | if (oh->version < OFP13_VERSION) { | |
4564 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4565 | valid_mask |= ttl_bit; | |
4566 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4567 | } else { | |
4568 | config->invalid_ttl_to_controller = -1; | |
4569 | } | |
4570 | ||
4571 | return !(osc->flags & ~valid_mask); | |
4572 | } | |
4573 | ||
4574 | void | |
4575 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4576 | struct ofputil_switch_config *config) | |
4577 | { | |
4578 | ofputil_decode_switch_config(oh, config); | |
4579 | } | |
4580 | ||
4581 | enum ofperr | |
4582 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4583 | struct ofputil_switch_config *config) | |
4584 | { | |
4585 | return (ofputil_decode_switch_config(oh, config) | |
4586 | ? 0 | |
4587 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4588 | } | |
4589 | ||
4590 | static struct ofpbuf * | |
4591 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4592 | struct ofpbuf *b) | |
4593 | { | |
4594 | const struct ofp_header *oh = b->data; | |
4595 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4596 | osc->flags = htons(config->frag); | |
4597 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4598 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4599 | } | |
4600 | osc->miss_send_len = htons(config->miss_send_len); | |
4601 | return b; | |
4602 | } | |
4603 | ||
4604 | struct ofpbuf * | |
4605 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4606 | const struct ofputil_switch_config *config) | |
4607 | { | |
4608 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4609 | request, 0); | |
4610 | return ofputil_put_switch_config(config, b); | |
4611 | } | |
4612 | ||
4613 | struct ofpbuf * | |
4614 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4615 | enum ofp_version version) | |
4616 | { | |
4617 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4618 | return ofputil_put_switch_config(config, b); | |
4619 | } | |
4620 | \f | |
9e1fd49b BP |
4621 | /* ofputil_switch_features */ |
4622 | ||
4623 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4624 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4625 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4626 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4627 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4628 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4629 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4630 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4631 | ||
60202987 SH |
4632 | static uint32_t |
4633 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4634 | { | |
0746a84f | 4635 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4636 | switch (ofp_version) { |
4637 | case OFP10_VERSION: | |
4638 | case OFP11_VERSION: | |
4639 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4640 | case OFP12_VERSION: | |
2e1ae200 | 4641 | case OFP13_VERSION: |
c37c0382 | 4642 | case OFP14_VERSION: |
42dccab5 | 4643 | case OFP15_VERSION: |
18cc69d9 | 4644 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4645 | default: |
4646 | /* Caller needs to check osf->header.version itself */ | |
4647 | return 0; | |
4648 | } | |
4649 | } | |
4650 | ||
667bb1fb BP |
4651 | /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into |
4652 | * an abstract representation in '*features', readying 'b' to iterate over the | |
4653 | * OpenFlow port structures following 'osf' with later calls to | |
4654 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_* | |
4655 | * value. */ | |
9e1fd49b | 4656 | enum ofperr |
667bb1fb BP |
4657 | ofputil_pull_switch_features(struct ofpbuf *b, |
4658 | struct ofputil_switch_features *features) | |
9e1fd49b | 4659 | { |
667bb1fb BP |
4660 | const struct ofp_header *oh = b->data; |
4661 | enum ofpraw raw = ofpraw_pull_assert(b); | |
4662 | const struct ofp_switch_features *osf = ofpbuf_pull(b, sizeof *osf); | |
9e1fd49b BP |
4663 | features->datapath_id = ntohll(osf->datapath_id); |
4664 | features->n_buffers = ntohl(osf->n_buffers); | |
4665 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4666 | features->auxiliary_id = 0; |
9e1fd49b | 4667 | |
60202987 SH |
4668 | features->capabilities = ntohl(osf->capabilities) & |
4669 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4670 | |
982697a4 | 4671 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4672 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4673 | features->capabilities |= OFPUTIL_C_STP; | |
4674 | } | |
08d1e234 BP |
4675 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4676 | OFP10_VERSION); | |
2e1ae200 JR |
4677 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4678 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4679 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4680 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4681 | } | |
08d1e234 | 4682 | features->ofpacts = 0; |
2e1ae200 JR |
4683 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4684 | features->auxiliary_id = osf->auxiliary_id; | |
4685 | } | |
9e1fd49b BP |
4686 | } else { |
4687 | return OFPERR_OFPBRC_BAD_VERSION; | |
4688 | } | |
4689 | ||
4690 | return 0; | |
4691 | } | |
4692 | ||
fca6d553 BP |
4693 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4694 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4695 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4696 | * | |
4697 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4698 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4699 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4700 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4701 | * message. | |
4702 | * | |
4703 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4704 | * stats request to get the ports. */ | |
347b7ac4 | 4705 | bool |
fca6d553 | 4706 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4707 | { |
6fd6ed71 | 4708 | struct ofp_header *oh = b->data; |
13e1aff8 | 4709 | size_t phy_port_size; |
347b7ac4 | 4710 | |
fca6d553 | 4711 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4712 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4713 | return false; |
13e1aff8 BP |
4714 | } |
4715 | ||
4716 | phy_port_size = (oh->version == OFP10_VERSION | |
4717 | ? sizeof(struct ofp10_phy_port) | |
4718 | : sizeof(struct ofp11_port)); | |
4719 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4720 | /* There's room for additional ports in the feature reply. | |
4721 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4722 | return true; |
4723 | } | |
13e1aff8 BP |
4724 | |
4725 | /* The feature reply has no room for more ports. Probably the list is | |
4726 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4727 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4728 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4729 | ofpmsg_update_length(b); |
4730 | return false; | |
347b7ac4 JP |
4731 | } |
4732 | ||
9e1fd49b BP |
4733 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4734 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4735 | * information to the buffer with subsequent calls to | |
4736 | * ofputil_put_switch_features_port(). */ | |
4737 | struct ofpbuf * | |
4738 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4739 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4740 | { | |
4741 | struct ofp_switch_features *osf; | |
4742 | struct ofpbuf *b; | |
2e3fa633 SH |
4743 | enum ofp_version version; |
4744 | enum ofpraw raw; | |
982697a4 BP |
4745 | |
4746 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4747 | switch (version) { |
4748 | case OFP10_VERSION: | |
4749 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4750 | break; | |
4751 | case OFP11_VERSION: | |
4752 | case OFP12_VERSION: | |
4753 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4754 | break; | |
2e1ae200 | 4755 | case OFP13_VERSION: |
c37c0382 | 4756 | case OFP14_VERSION: |
42dccab5 | 4757 | case OFP15_VERSION: |
2e1ae200 JR |
4758 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4759 | break; | |
2e3fa633 | 4760 | default: |
428b2edd | 4761 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4762 | } |
4763 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4764 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4765 | osf->datapath_id = htonll(features->datapath_id); |
4766 | osf->n_buffers = htonl(features->n_buffers); | |
4767 | osf->n_tables = features->n_tables; | |
4768 | ||
4769 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4770 | osf->capabilities = htonl(features->capabilities & |
4771 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4772 | switch (version) { |
4773 | case OFP10_VERSION: | |
9e1fd49b BP |
4774 | if (features->capabilities & OFPUTIL_C_STP) { |
4775 | osf->capabilities |= htonl(OFPC10_STP); | |
4776 | } | |
08d1e234 BP |
4777 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4778 | OFP10_VERSION); | |
2e3fa633 | 4779 | break; |
2e1ae200 | 4780 | case OFP13_VERSION: |
c37c0382 | 4781 | case OFP14_VERSION: |
42dccab5 | 4782 | case OFP15_VERSION: |
2e1ae200 JR |
4783 | osf->auxiliary_id = features->auxiliary_id; |
4784 | /* fall through */ | |
2e3fa633 SH |
4785 | case OFP11_VERSION: |
4786 | case OFP12_VERSION: | |
9e1fd49b BP |
4787 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4788 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4789 | } | |
2e3fa633 SH |
4790 | break; |
4791 | default: | |
428b2edd | 4792 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4793 | } |
4794 | ||
4795 | return b; | |
4796 | } | |
4797 | ||
4798 | /* Encodes 'pp' into the format required by the switch_features message already | |
4799 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4800 | * and appends the encoded version to 'b'. */ | |
4801 | void | |
4802 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4803 | struct ofpbuf *b) | |
4804 | { | |
6fd6ed71 | 4805 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4806 | |
e0c91c0c | 4807 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4808 | /* Try adding a port description to the message, but drop it again if |
4809 | * the buffer overflows. (This possibility for overflow is why | |
4810 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4811 | size_t start_ofs = b->size; |
e0c91c0c | 4812 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4813 | if (b->size > UINT16_MAX) { |
4814 | b->size = start_ofs; | |
6b0f20ac | 4815 | } |
e0c91c0c | 4816 | } |
9e1fd49b BP |
4817 | } |
4818 | \f | |
4819 | /* ofputil_port_status */ | |
4820 | ||
4821 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4822 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4823 | enum ofperr | |
982697a4 | 4824 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4825 | struct ofputil_port_status *ps) |
4826 | { | |
0a2869d5 | 4827 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
982697a4 | 4828 | ofpraw_pull_assert(&b); |
982697a4 | 4829 | |
0a2869d5 | 4830 | const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops); |
9e1fd49b BP |
4831 | if (ops->reason != OFPPR_ADD && |
4832 | ops->reason != OFPPR_DELETE && | |
4833 | ops->reason != OFPPR_MODIFY) { | |
4834 | return OFPERR_NXBRC_BAD_REASON; | |
4835 | } | |
4836 | ps->reason = ops->reason; | |
4837 | ||
0a2869d5 | 4838 | int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4839 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4840 | return retval; |
4841 | } | |
4842 | ||
4843 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4844 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4845 | * a buffer owned by the caller. */ | |
4846 | struct ofpbuf * | |
4847 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4848 | enum ofputil_protocol protocol) | |
4849 | { | |
4850 | struct ofp_port_status *ops; | |
4851 | struct ofpbuf *b; | |
2e3fa633 SH |
4852 | enum ofp_version version; |
4853 | enum ofpraw raw; | |
982697a4 BP |
4854 | |
4855 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4856 | switch (version) { |
4857 | case OFP10_VERSION: | |
4858 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4859 | break; | |
4860 | ||
4861 | case OFP11_VERSION: | |
4862 | case OFP12_VERSION: | |
2e1ae200 | 4863 | case OFP13_VERSION: |
2e3fa633 SH |
4864 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4865 | break; | |
4866 | ||
8c3cc785 | 4867 | case OFP14_VERSION: |
42dccab5 | 4868 | case OFP15_VERSION: |
8c3cc785 BP |
4869 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4870 | break; | |
4871 | ||
2e3fa633 | 4872 | default: |
428b2edd | 4873 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4874 | } |
4875 | ||
4876 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4877 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4878 | ops->reason = ps->reason; |
982697a4 BP |
4879 | ofputil_put_phy_port(version, &ps->desc, b); |
4880 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4881 | return b; |
4882 | } | |
918f2b82 | 4883 | |
9e1fd49b BP |
4884 | /* ofputil_port_mod */ |
4885 | ||
18cc69d9 BP |
4886 | static enum ofperr |
4887 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4888 | struct ofputil_port_mod *pm) | |
4889 | { | |
b611d3ac BP |
4890 | ovs_be32 advertise; |
4891 | enum ofperr error; | |
18cc69d9 | 4892 | |
b611d3ac BP |
4893 | error = ofpprop_parse_be32(property, &advertise); |
4894 | if (!error) { | |
4895 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 4896 | } |
b611d3ac | 4897 | return error; |
18cc69d9 BP |
4898 | } |
4899 | ||
9e1fd49b BP |
4900 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4901 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4902 | enum ofperr | |
4903 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4904 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4905 | { |
0a2869d5 BP |
4906 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4907 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4908 | if (raw == OFPRAW_OFPT10_PORT_MOD) { |
6fd6ed71 | 4909 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4910 | |
4e022ec0 | 4911 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4912 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4913 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4914 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4915 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4916 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4917 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4918 | enum ofperr error; |
4919 | ||
9e1fd49b BP |
4920 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4921 | if (error) { | |
4922 | return error; | |
4923 | } | |
4924 | ||
74ff3298 | 4925 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4926 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4927 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4928 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4929 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4930 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4931 | enum ofperr error; | |
4932 | ||
4933 | memset(pm, 0, sizeof *pm); | |
4934 | ||
4935 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4936 | if (error) { | |
4937 | return error; | |
4938 | } | |
4939 | ||
74ff3298 | 4940 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4941 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4942 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4943 | ||
6fd6ed71 | 4944 | while (b.size > 0) { |
18cc69d9 BP |
4945 | struct ofpbuf property; |
4946 | enum ofperr error; | |
34a543e3 | 4947 | uint64_t type; |
18cc69d9 | 4948 | |
c5562271 | 4949 | error = ofpprop_pull(&b, &property, &type); |
18cc69d9 BP |
4950 | if (error) { |
4951 | return error; | |
4952 | } | |
4953 | ||
4954 | switch (type) { | |
4955 | case OFPPMPT14_ETHERNET: | |
4956 | error = parse_port_mod_ethernet_property(&property, pm); | |
4957 | break; | |
4958 | ||
4959 | default: | |
34a543e3 | 4960 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); |
18cc69d9 BP |
4961 | break; |
4962 | } | |
4963 | ||
4964 | if (error) { | |
4965 | return error; | |
4966 | } | |
4967 | } | |
9e1fd49b | 4968 | } else { |
982697a4 | 4969 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4970 | } |
4971 | ||
4972 | pm->config &= pm->mask; | |
4973 | return 0; | |
4974 | } | |
4975 | ||
4976 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4977 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4978 | * owned by the caller. */ | |
4979 | struct ofpbuf * | |
4980 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4981 | enum ofputil_protocol protocol) | |
4982 | { | |
2e3fa633 | 4983 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4984 | struct ofpbuf *b; |
4985 | ||
2e3fa633 SH |
4986 | switch (ofp_version) { |
4987 | case OFP10_VERSION: { | |
9e1fd49b BP |
4988 | struct ofp10_port_mod *opm; |
4989 | ||
982697a4 BP |
4990 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4991 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4992 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 4993 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4994 | opm->config = htonl(pm->config & OFPPC10_ALL); |
4995 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4996 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4997 | break; |
4998 | } | |
4999 | ||
5fe7c919 | 5000 | case OFP11_VERSION: |
2e1ae200 JR |
5001 | case OFP12_VERSION: |
5002 | case OFP13_VERSION: { | |
9e1fd49b BP |
5003 | struct ofp11_port_mod *opm; |
5004 | ||
982697a4 BP |
5005 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
5006 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 5007 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 5008 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5009 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5010 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5011 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
5012 | break; |
5013 | } | |
42dccab5 BP |
5014 | case OFP14_VERSION: |
5015 | case OFP15_VERSION: { | |
18cc69d9 BP |
5016 | struct ofp14_port_mod *opm; |
5017 | ||
b611d3ac | 5018 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
5019 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
5020 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 5021 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
5022 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5023 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5024 | ||
5025 | if (pm->advertise) { | |
b611d3ac BP |
5026 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
5027 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 5028 | } |
c37c0382 | 5029 | break; |
18cc69d9 | 5030 | } |
918f2b82 | 5031 | default: |
428b2edd | 5032 | OVS_NOT_REACHED(); |
918f2b82 AZ |
5033 | } |
5034 | ||
5035 | return b; | |
5036 | } | |
72b25867 BP |
5037 | \f |
5038 | /* Table features. */ | |
918f2b82 | 5039 | |
5deff5aa | 5040 | static enum ofperr |
9a4eddbb | 5041 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 5042 | uint64_t *typep) |
5deff5aa | 5043 | { |
9a4eddbb | 5044 | enum ofperr error; |
5deff5aa | 5045 | |
c5562271 | 5046 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 5047 | if (payload && !error) { |
b611d3ac | 5048 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 5049 | } |
9a4eddbb | 5050 | return error; |
5deff5aa AW |
5051 | } |
5052 | ||
5053 | static enum ofperr | |
08d1e234 BP |
5054 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
5055 | uint64_t *ofpacts) | |
5deff5aa | 5056 | { |
08d1e234 | 5057 | uint32_t types = 0; |
5deff5aa | 5058 | |
6fd6ed71 | 5059 | while (payload->size > 0) { |
08d1e234 | 5060 | enum ofperr error; |
34a543e3 | 5061 | uint64_t type; |
08d1e234 | 5062 | |
34a543e3 | 5063 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
5064 | if (error) { |
5065 | return error; | |
5066 | } | |
08d1e234 BP |
5067 | if (type < CHAR_BIT * sizeof types) { |
5068 | types |= 1u << type; | |
5deff5aa AW |
5069 | } |
5070 | } | |
08d1e234 BP |
5071 | |
5072 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
5073 | return 0; |
5074 | } | |
5075 | ||
5076 | static enum ofperr | |
5077 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
5078 | { | |
5079 | *insts = 0; | |
6fd6ed71 | 5080 | while (payload->size > 0) { |
5deff5aa AW |
5081 | enum ovs_instruction_type inst; |
5082 | enum ofperr error; | |
34a543e3 | 5083 | uint64_t ofpit; |
5deff5aa | 5084 | |
72b25867 BP |
5085 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
5086 | * It seems clear that they aren't padded to 8 bytes, though, because | |
5087 | * both standards say that "non-experimenter instructions are 4 bytes" | |
5088 | * and do not mention any padding before the first instruction ID. | |
5089 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
5090 | * aligned on an odd 4-byte boundary.) | |
5091 | * | |
5092 | * Anyway, we just assume they're all glommed together on byte | |
5093 | * boundaries. */ | |
34a543e3 | 5094 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
5095 | if (error) { |
5096 | return error; | |
5097 | } | |
5098 | ||
5099 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
5100 | if (!error) { | |
5101 | *insts |= 1u << inst; | |
5102 | } else if (!loose) { | |
5103 | return error; | |
5104 | } | |
5105 | } | |
5106 | return 0; | |
5107 | } | |
5108 | ||
5109 | static enum ofperr | |
5110 | parse_table_features_next_table(struct ofpbuf *payload, | |
5111 | unsigned long int *next_tables) | |
5112 | { | |
5113 | size_t i; | |
5114 | ||
5115 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
5116 | for (i = 0; i < payload->size; i++) { |
5117 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 5118 | if (id >= 255) { |
9a4eddbb | 5119 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
5120 | } |
5121 | bitmap_set1(next_tables, id); | |
5122 | } | |
5123 | return 0; | |
5124 | } | |
5125 | ||
5deff5aa AW |
5126 | static enum ofperr |
5127 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 5128 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 5129 | { |
abadfcb0 BP |
5130 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
5131 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 5132 | |
6fd6ed71 | 5133 | while (payload->size > 0) { |
5deff5aa AW |
5134 | const struct mf_field *field; |
5135 | enum ofperr error; | |
5136 | bool hasmask; | |
5137 | ||
178742f9 | 5138 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 5139 | if (!error) { |
abadfcb0 | 5140 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
5141 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
5142 | return error; | |
5143 | } | |
5144 | } | |
5145 | if (exactp) { | |
5146 | *exactp = exact; | |
abadfcb0 | 5147 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
5148 | return OFPERR_OFPBMC_BAD_MASK; |
5149 | } | |
5150 | if (maskedp) { | |
5151 | *maskedp = masked; | |
abadfcb0 | 5152 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
5153 | return OFPERR_OFPBMC_BAD_MASK; |
5154 | } | |
5155 | return 0; | |
5156 | } | |
5157 | ||
5158 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
5159 | * ofputil_table_features in 'tf'. | |
5160 | * | |
5161 | * If 'loose' is true, this function ignores properties and values that it does | |
5162 | * not understand, as a controller would want to do when interpreting | |
5163 | * capabilities provided by a switch. If 'loose' is false, this function | |
5164 | * treats unknown properties and values as an error, as a switch would want to | |
5165 | * do when interpreting a configuration request made by a controller. | |
5166 | * | |
5167 | * A single OpenFlow message can specify features for multiple tables. Calling | |
5168 | * this function multiple times for a single 'msg' iterates through the tables | |
5169 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
5170 | * and not modify them between calls. | |
5171 | * | |
5172 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
5173 | * a positive "enum ofperr" value. */ | |
5174 | int | |
5175 | ofputil_decode_table_features(struct ofpbuf *msg, | |
5176 | struct ofputil_table_features *tf, bool loose) | |
5177 | { | |
3c1bb396 BP |
5178 | memset(tf, 0, sizeof *tf); |
5179 | ||
6fd6ed71 | 5180 | if (!msg->header) { |
5deff5aa AW |
5181 | ofpraw_pull_assert(msg); |
5182 | } | |
5183 | ||
6fd6ed71 | 5184 | if (!msg->size) { |
5deff5aa AW |
5185 | return EOF; |
5186 | } | |
5187 | ||
0a2869d5 BP |
5188 | const struct ofp_header *oh = msg->header; |
5189 | struct ofp13_table_features *otf = msg->data; | |
6fd6ed71 | 5190 | if (msg->size < sizeof *otf) { |
9a4eddbb | 5191 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
5192 | } |
5193 | ||
0a2869d5 | 5194 | unsigned int len = ntohs(otf->length); |
6fd6ed71 | 5195 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 5196 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 5197 | } |
5deff5aa AW |
5198 | |
5199 | tf->table_id = otf->table_id; | |
5200 | if (tf->table_id == OFPTT_ALL) { | |
5201 | return OFPERR_OFPTFFC_BAD_TABLE; | |
5202 | } | |
5203 | ||
5204 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
5205 | tf->metadata_match = otf->metadata_match; | |
5206 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
5207 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
5208 | if (oh->version >= OFP14_VERSION) { | |
5209 | uint32_t caps = ntohl(otf->capabilities); | |
5210 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
5211 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
5212 | } else { | |
5213 | tf->supports_eviction = -1; | |
5214 | tf->supports_vacancy_events = -1; | |
5215 | } | |
5deff5aa AW |
5216 | tf->max_entries = ntohl(otf->max_entries); |
5217 | ||
0a2869d5 BP |
5218 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
5219 | len); | |
5220 | ofpbuf_pull(&properties, sizeof *otf); | |
6fd6ed71 | 5221 | while (properties.size > 0) { |
5deff5aa AW |
5222 | struct ofpbuf payload; |
5223 | enum ofperr error; | |
34a543e3 | 5224 | uint64_t type; |
5deff5aa | 5225 | |
ae665de5 | 5226 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
5227 | if (error) { |
5228 | return error; | |
5229 | } | |
5230 | ||
5231 | switch ((enum ofp13_table_feature_prop_type) type) { | |
5232 | case OFPTFPT13_INSTRUCTIONS: | |
5233 | error = parse_instruction_ids(&payload, loose, | |
5234 | &tf->nonmiss.instructions); | |
5235 | break; | |
5236 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
5237 | error = parse_instruction_ids(&payload, loose, | |
5238 | &tf->miss.instructions); | |
5239 | break; | |
5240 | ||
5241 | case OFPTFPT13_NEXT_TABLES: | |
5242 | error = parse_table_features_next_table(&payload, | |
5243 | tf->nonmiss.next); | |
5244 | break; | |
5245 | case OFPTFPT13_NEXT_TABLES_MISS: | |
5246 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
5247 | break; | |
5248 | ||
5249 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
5250 | error = parse_action_bitmap(&payload, oh->version, |
5251 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
5252 | break; |
5253 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
5254 | error = parse_action_bitmap(&payload, oh->version, |
5255 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
5256 | break; |
5257 | ||
5258 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
5259 | error = parse_action_bitmap(&payload, oh->version, |
5260 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
5261 | break; |
5262 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
5263 | error = parse_action_bitmap(&payload, oh->version, |
5264 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
5265 | break; |
5266 | ||
5267 | case OFPTFPT13_MATCH: | |
5268 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
5269 | break; | |
5270 | case OFPTFPT13_WILDCARDS: | |
5271 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
5272 | break; | |
5273 | ||
5274 | case OFPTFPT13_WRITE_SETFIELD: | |
5275 | error = parse_oxms(&payload, loose, | |
5276 | &tf->nonmiss.write.set_fields, NULL); | |
5277 | break; | |
5278 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
5279 | error = parse_oxms(&payload, loose, | |
5280 | &tf->miss.write.set_fields, NULL); | |
5281 | break; | |
5282 | case OFPTFPT13_APPLY_SETFIELD: | |
5283 | error = parse_oxms(&payload, loose, | |
5284 | &tf->nonmiss.apply.set_fields, NULL); | |
5285 | break; | |
5286 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
5287 | error = parse_oxms(&payload, loose, | |
5288 | &tf->miss.apply.set_fields, NULL); | |
5289 | break; | |
5290 | ||
5291 | case OFPTFPT13_EXPERIMENTER: | |
5292 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 5293 | default: |
34a543e3 | 5294 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
5295 | break; |
5296 | } | |
5297 | if (error) { | |
5298 | return error; | |
5299 | } | |
5300 | } | |
5301 | ||
5302 | /* Fix inconsistencies: | |
5303 | * | |
e7227821 BP |
5304 | * - Turn on 'match' bits that are set in 'mask', because maskable |
5305 | * fields are matchable. | |
5deff5aa AW |
5306 | * |
5307 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
5308 | * that is arbitrarily maskable can be wildcarded entirely. |
5309 | * | |
5310 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
5311 | * must be matchable for it to be meaningfully wildcarded. */ | |
5312 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 5313 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 5314 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
5315 | |
5316 | return 0; | |
5317 | } | |
5318 | ||
5319 | /* Encodes and returns a request to obtain the table features of a switch. | |
5320 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5321 | struct ofpbuf * | |
5322 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
5323 | { | |
5324 | struct ofpbuf *request = NULL; | |
5325 | ||
5326 | switch (ofp_version) { | |
5327 | case OFP10_VERSION: | |
5328 | case OFP11_VERSION: | |
5329 | case OFP12_VERSION: | |
5330 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
5331 | "(\'-O OpenFlow13\')"); | |
5332 | case OFP13_VERSION: | |
5333 | case OFP14_VERSION: | |
42dccab5 | 5334 | case OFP15_VERSION: |
5deff5aa AW |
5335 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
5336 | ofp_version, 0); | |
5337 | break; | |
5338 | default: | |
5339 | OVS_NOT_REACHED(); | |
5340 | } | |
5341 | ||
5342 | return request; | |
5343 | } | |
5344 | ||
3c4e10fb BP |
5345 | static void |
5346 | put_fields_property(struct ofpbuf *reply, | |
5347 | const struct mf_bitmap *fields, | |
5348 | const struct mf_bitmap *masks, | |
5349 | enum ofp13_table_feature_prop_type property, | |
5350 | enum ofp_version version) | |
5351 | { | |
5352 | size_t start_ofs; | |
5353 | int field; | |
5354 | ||
c5562271 | 5355 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 5356 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
5357 | nx_put_header(reply, field, version, |
5358 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 5359 | } |
c5562271 | 5360 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5361 | } |
5362 | ||
5363 | static void | |
5364 | put_table_action_features(struct ofpbuf *reply, | |
5365 | const struct ofputil_table_action_features *taf, | |
5366 | enum ofp13_table_feature_prop_type actions_type, | |
5367 | enum ofp13_table_feature_prop_type set_fields_type, | |
5368 | int miss_offset, enum ofp_version version) | |
5369 | { | |
c5562271 BP |
5370 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
5371 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
5372 | version))); | |
3c4e10fb BP |
5373 | put_fields_property(reply, &taf->set_fields, NULL, |
5374 | set_fields_type + miss_offset, version); | |
5375 | } | |
5376 | ||
5377 | static void | |
5378 | put_table_instruction_features( | |
5379 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
5380 | int miss_offset, enum ofp_version version) | |
5381 | { | |
5382 | size_t start_ofs; | |
5383 | uint8_t table_id; | |
5384 | ||
c5562271 BP |
5385 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
5386 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
5387 | version))); | |
3c4e10fb | 5388 | |
c5562271 | 5389 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
5390 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
5391 | ofpbuf_put(reply, &table_id, 1); | |
5392 | } | |
c5562271 | 5393 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5394 | |
5395 | put_table_action_features(reply, &tif->write, | |
5396 | OFPTFPT13_WRITE_ACTIONS, | |
5397 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
5398 | put_table_action_features(reply, &tif->apply, | |
5399 | OFPTFPT13_APPLY_ACTIONS, | |
5400 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
5401 | } | |
5402 | ||
5403 | void | |
5404 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 5405 | struct ovs_list *replies) |
3c4e10fb | 5406 | { |
417e7e66 | 5407 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
3c4e10fb | 5408 | enum ofp_version version = ofpmp_version(replies); |
6fd6ed71 | 5409 | size_t start_ofs = reply->size; |
3c4e10fb BP |
5410 | struct ofp13_table_features *otf; |
5411 | ||
5412 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
5413 | otf->table_id = tf->table_id; | |
5414 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
5415 | otf->metadata_match = tf->metadata_match; | |
5416 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
5417 | if (version >= OFP14_VERSION) { |
5418 | if (tf->supports_eviction) { | |
5419 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
5420 | } | |
5421 | if (tf->supports_vacancy_events) { | |
5422 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
5423 | } | |
5424 | } | |
3c4e10fb BP |
5425 | otf->max_entries = htonl(tf->max_entries); |
5426 | ||
5427 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
5428 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
5429 | ||
5430 | put_fields_property(reply, &tf->match, &tf->mask, | |
5431 | OFPTFPT13_MATCH, version); | |
5432 | put_fields_property(reply, &tf->wildcard, NULL, | |
5433 | OFPTFPT13_WILDCARDS, version); | |
5434 | ||
5435 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5436 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5437 | ofpmp_postappend(replies, start_ofs); |
5438 | } | |
5439 | ||
bab86012 SJ |
5440 | static enum ofperr |
5441 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5442 | struct ofputil_table_desc *td) | |
5443 | { | |
5444 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5445 | ||
5446 | if (property->size != sizeof *otv) { | |
5447 | return OFPERR_OFPBPC_BAD_LEN; | |
5448 | } | |
5449 | ||
5450 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5451 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5452 | td->table_vacancy.vacancy = otv->vacancy; | |
5453 | return 0; | |
5454 | } | |
5455 | ||
03c72922 BP |
5456 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5457 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5458 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5459 | * value. */ | |
5460 | int | |
5461 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5462 | struct ofputil_table_desc *td, | |
5463 | enum ofp_version version) | |
5464 | { | |
03c72922 BP |
5465 | memset(td, 0, sizeof *td); |
5466 | ||
5467 | if (!msg->header) { | |
5468 | ofpraw_pull_assert(msg); | |
5469 | } | |
5470 | ||
5471 | if (!msg->size) { | |
5472 | return EOF; | |
5473 | } | |
5474 | ||
0a2869d5 | 5475 | struct ofp14_table_desc *otd = ofpbuf_try_pull(msg, sizeof *otd); |
03c72922 BP |
5476 | if (!otd) { |
5477 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5478 | "leftover bytes at end", msg->size); | |
5479 | return OFPERR_OFPBRC_BAD_LEN; | |
5480 | } | |
5481 | ||
5482 | td->table_id = otd->table_id; | |
0a2869d5 | 5483 | size_t length = ntohs(otd->length); |
03c72922 BP |
5484 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { |
5485 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5486 | "length %"PRIuSIZE, length); | |
5487 | return OFPERR_OFPBRC_BAD_LEN; | |
5488 | } | |
5489 | length -= sizeof *otd; | |
03c72922 BP |
5490 | |
5491 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5492 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5493 | td->eviction_flags = UINT32_MAX; |
5494 | ||
0a2869d5 BP |
5495 | struct ofpbuf properties = ofpbuf_const_initializer( |
5496 | ofpbuf_pull(msg, length), length); | |
03c72922 BP |
5497 | while (properties.size > 0) { |
5498 | struct ofpbuf payload; | |
5499 | enum ofperr error; | |
34a543e3 | 5500 | uint64_t type; |
03c72922 | 5501 | |
c5562271 | 5502 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5503 | if (error) { |
5504 | return error; | |
5505 | } | |
5506 | ||
5507 | switch (type) { | |
5508 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5509 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5510 | break; |
5511 | ||
bab86012 SJ |
5512 | case OFPTMPT14_VACANCY: |
5513 | error = parse_table_desc_vacancy_property(&payload, td); | |
5514 | break; | |
5515 | ||
03c72922 | 5516 | default: |
34a543e3 | 5517 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5518 | break; |
5519 | } | |
5520 | ||
5521 | if (error) { | |
5522 | return error; | |
5523 | } | |
5524 | } | |
5525 | ||
5526 | return 0; | |
5527 | } | |
5528 | ||
5529 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5530 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5531 | struct ofpbuf * | |
5532 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5533 | { | |
5534 | struct ofpbuf *request = NULL; | |
5535 | ||
5536 | if (ofp_version >= OFP14_VERSION) { | |
5537 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5538 | ofp_version, 0); | |
5539 | } else { | |
5540 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5541 | "(\'-O OpenFlow14\')"); | |
5542 | } | |
5543 | ||
5544 | return request; | |
5545 | } | |
5546 | ||
5547 | /* Function to append Table desc information in a reply list. */ | |
5548 | void | |
5549 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5550 | struct ovs_list *replies, | |
5551 | enum ofp_version version) | |
5552 | { | |
417e7e66 | 5553 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
03c72922 BP |
5554 | size_t start_otd; |
5555 | struct ofp14_table_desc *otd; | |
5556 | ||
5557 | start_otd = reply->size; | |
5558 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5559 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5560 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5561 | } |
bab86012 SJ |
5562 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5563 | struct ofp14_table_mod_prop_vacancy *otv; | |
5564 | ||
303721ee | 5565 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5566 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5567 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5568 | otv->vacancy = td->table_vacancy.vacancy; | |
5569 | } | |
03c72922 BP |
5570 | |
5571 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5572 | otd->length = htons(reply->size - start_otd); | |
5573 | otd->table_id = td->table_id; | |
5574 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5575 | td->eviction, td->vacancy, |
5576 | version); | |
03c72922 BP |
5577 | ofpmp_postappend(replies, start_otd); |
5578 | } | |
5579 | ||
de7d3c07 SJ |
5580 | /* This function parses Vacancy property, and decodes the |
5581 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5582 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5583 | * greater than vacancy_up and also when current vacancy has non-zero | |
5584 | * value. Returns 0 on success. */ | |
5585 | static enum ofperr | |
5586 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5587 | struct ofputil_table_mod *tm) | |
5588 | { | |
5589 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5590 | ||
5591 | if (property->size != sizeof *otv) { | |
5592 | return OFPERR_OFPBPC_BAD_LEN; | |
5593 | } | |
5594 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5595 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5596 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5597 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5598 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5599 | return OFPERR_OFPBPC_BAD_VALUE; |
5600 | } | |
5601 | if (tm->table_vacancy.vacancy_down > 100 || | |
5602 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5603 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5604 | "should not be greater than 100"); | |
de7d3c07 SJ |
5605 | return OFPERR_OFPBPC_BAD_VALUE; |
5606 | } | |
5607 | tm->table_vacancy.vacancy = otv->vacancy; | |
5608 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5609 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5610 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5611 | return OFPERR_OFPBPC_BAD_VALUE; |
5612 | } | |
5613 | return 0; | |
5614 | } | |
5615 | ||
5616 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5617 | * table configuration (a table mod, table stats, or table features message), | |
5618 | * returns the table vacancy configuration that it specifies. | |
5619 | * | |
5620 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5621 | * so for other 'version' this function always returns | |
5622 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5623 | static enum ofputil_table_vacancy | |
5624 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5625 | { | |
5626 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5627 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5628 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5629 | } | |
5630 | ||
3c1bb396 BP |
5631 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5632 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5633 | * returns the table eviction configuration that it specifies. |
5634 | * | |
5635 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5636 | * so for other 'version' values this function always returns | |
5637 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5638 | static enum ofputil_table_eviction | |
5639 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5640 | { | |
5641 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5642 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5643 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5644 | } | |
5645 | ||
5646 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5647 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5648 | * 'eviction' values. */ | |
5649 | static ovs_be32 | |
5650 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5651 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5652 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5653 | enum ofp_version version) |
5654 | { | |
de7d3c07 | 5655 | uint32_t config = 0; |
82c22d34 BP |
5656 | /* See the section "OFPTC_* Table Configuration" in DESIGN.md for more |
5657 | * information on the crazy evolution of this field. */ | |
5658 | switch (version) { | |
5659 | case OFP10_VERSION: | |
5660 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5661 | return htonl(0); | |
5662 | ||
5663 | case OFP11_VERSION: | |
5664 | case OFP12_VERSION: | |
5665 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5666 | switch (miss) { | |
5667 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5668 | /* Really this shouldn't be used for encoding (the caller should | |
5669 | * provide a specific value) but I can't imagine that defaulting to | |
5670 | * the fall-through case here will hurt. */ | |
5671 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5672 | default: | |
5673 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5674 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5675 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5676 | case OFPUTIL_TABLE_MISS_DROP: | |
5677 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5678 | } | |
5679 | OVS_NOT_REACHED(); | |
5680 | ||
5681 | case OFP13_VERSION: | |
5682 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5683 | * flags, so this is correct. */ | |
5684 | return htonl(0); | |
5685 | ||
5686 | case OFP14_VERSION: | |
5687 | case OFP15_VERSION: | |
de7d3c07 SJ |
5688 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5689 | * OFPTC14_VACANCY_EVENTS. */ | |
5690 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5691 | config |= OFPTC14_EVICTION; | |
5692 | } | |
5693 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5694 | config |= OFPTC14_VACANCY_EVENTS; | |
5695 | } | |
5696 | return htonl(config); | |
82c22d34 BP |
5697 | } |
5698 | ||
5699 | OVS_NOT_REACHED(); | |
5700 | } | |
5701 | ||
5702 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5703 | * table configuration (a table mod, table stats, or table features message), | |
5704 | * returns the table miss configuration that it specifies. | |
5705 | * | |
5706 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5707 | * other 'version' values this function always returns | |
5708 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5709 | static enum ofputil_table_miss |
82c22d34 | 5710 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5711 | { |
5712 | uint32_t config = ntohl(config_); | |
5713 | ||
82c22d34 | 5714 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5715 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5716 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5717 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5718 | ||
5719 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5720 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5721 | ||
5722 | case OFPTC11_TABLE_MISS_DROP: | |
5723 | return OFPUTIL_TABLE_MISS_DROP; | |
5724 | ||
5725 | default: | |
5726 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5727 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5728 | } | |
5729 | } else { | |
5730 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5731 | } | |
5732 | } | |
5733 | ||
918f2b82 AZ |
5734 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5735 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5736 | enum ofperr | |
5737 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5738 | struct ofputil_table_mod *pm) | |
5739 | { | |
82c22d34 BP |
5740 | memset(pm, 0, sizeof *pm); |
5741 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5742 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5743 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5744 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 | 5745 | |
0a2869d5 BP |
5746 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5747 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
918f2b82 | 5748 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { |
6fd6ed71 | 5749 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5750 | |
5751 | pm->table_id = otm->table_id; | |
82c22d34 | 5752 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5753 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5754 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5755 | ||
5756 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5757 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5758 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5759 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5760 | while (b.size > 0) { |
5761 | struct ofpbuf property; | |
5762 | enum ofperr error; | |
34a543e3 | 5763 | uint64_t type; |
82c22d34 | 5764 | |
c5562271 | 5765 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5766 | if (error) { |
5767 | return error; | |
5768 | } | |
5769 | ||
5770 | switch (type) { | |
5771 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5772 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5773 | break; |
5774 | ||
de7d3c07 SJ |
5775 | case OFPTMPT14_VACANCY: |
5776 | error = parse_table_mod_vacancy_property(&property, pm); | |
5777 | break; | |
5778 | ||
82c22d34 BP |
5779 | default: |
5780 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5781 | break; | |
5782 | } | |
5783 | ||
5784 | if (error) { | |
5785 | return error; | |
5786 | } | |
5787 | } | |
918f2b82 AZ |
5788 | } else { |
5789 | return OFPERR_OFPBRC_BAD_TYPE; | |
5790 | } | |
5791 | ||
5792 | return 0; | |
5793 | } | |
5794 | ||
82c22d34 BP |
5795 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5796 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5797 | * buffer owned by the caller. */ | |
918f2b82 | 5798 | struct ofpbuf * |
82c22d34 | 5799 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5800 | enum ofputil_protocol protocol) |
5801 | { | |
5802 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5803 | struct ofpbuf *b; | |
5804 | ||
5805 | switch (ofp_version) { | |
5806 | case OFP10_VERSION: { | |
5807 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5808 | "(\'-O OpenFlow11\')"); | |
5809 | break; | |
5810 | } | |
5811 | case OFP11_VERSION: | |
5812 | case OFP12_VERSION: | |
5813 | case OFP13_VERSION: { | |
5814 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5815 | |
918f2b82 AZ |
5816 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5817 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5818 | otm->table_id = tm->table_id; |
5819 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5820 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5821 | break; |
5822 | } | |
42dccab5 BP |
5823 | case OFP14_VERSION: |
5824 | case OFP15_VERSION: { | |
37ab26e8 BP |
5825 | struct ofp14_table_mod *otm; |
5826 | ||
5827 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5828 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5829 | otm->table_id = tm->table_id; |
5830 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5831 | tm->vacancy, ofp_version); |
82c22d34 BP |
5832 | |
5833 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5834 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 5835 | } |
de7d3c07 | 5836 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
5837 | struct ofp14_table_mod_prop_vacancy *otv; |
5838 | ||
5839 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
5840 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
5841 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5842 | } | |
c37c0382 | 5843 | break; |
37ab26e8 | 5844 | } |
2e3fa633 | 5845 | default: |
428b2edd | 5846 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5847 | } |
5848 | ||
5849 | return b; | |
5850 | } | |
2b07c8b1 | 5851 | \f |
6ea4776b JR |
5852 | /* ofputil_role_request */ |
5853 | ||
5854 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5855 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5856 | * OFPERR_* value. */ | |
5857 | enum ofperr | |
5858 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5859 | struct ofputil_role_request *rr) | |
5860 | { | |
0a2869d5 BP |
5861 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5862 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
f4f1ea7e BP |
5863 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5864 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5865 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5866 | |
f4f1ea7e BP |
5867 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5868 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5869 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5870 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5871 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5872 | } |
5873 | ||
f4f1ea7e | 5874 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5875 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5876 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5877 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5878 | rr->have_generation_id = false; |
5879 | rr->generation_id = 0; | |
5880 | } else { | |
5881 | rr->have_generation_id = true; | |
5882 | rr->generation_id = ntohll(orr->generation_id); | |
5883 | } | |
5884 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5885 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5886 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5887 | |
5888 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5889 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5890 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5891 | ||
5892 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5893 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5894 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5895 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5896 | } | |
6ea4776b | 5897 | |
f4f1ea7e BP |
5898 | rr->role = ntohl(nrr->role) + 1; |
5899 | rr->have_generation_id = false; | |
5900 | rr->generation_id = 0; | |
5901 | } else { | |
428b2edd | 5902 | OVS_NOT_REACHED(); |
6ea4776b JR |
5903 | } |
5904 | ||
6ea4776b JR |
5905 | return 0; |
5906 | } | |
5907 | ||
5908 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5909 | * buffer owned by the caller. */ | |
5910 | struct ofpbuf * | |
5911 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5912 | const struct ofputil_role_request *rr) |
6ea4776b | 5913 | { |
6ea4776b | 5914 | struct ofpbuf *buf; |
6ea4776b JR |
5915 | enum ofpraw raw; |
5916 | ||
f4f1ea7e | 5917 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5918 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5919 | struct ofp12_role_request *orr; |
6ea4776b | 5920 | |
f4f1ea7e BP |
5921 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5922 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5923 | |
147cc9d3 BP |
5924 | orr->role = htonl(rr->role); |
5925 | orr->generation_id = htonll(rr->have_generation_id | |
5926 | ? rr->generation_id | |
5927 | : UINT64_MAX); | |
f4f1ea7e BP |
5928 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5929 | struct nx_role_request *nrr; | |
5930 | ||
5931 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5932 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5933 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5934 | ||
5935 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5936 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5937 | nrr->role = htonl(rr->role - 1); | |
5938 | } else { | |
428b2edd | 5939 | OVS_NOT_REACHED(); |
6ea4776b | 5940 | } |
6ea4776b JR |
5941 | |
5942 | return buf; | |
5943 | } | |
5944 | \f | |
6751a4b4 BP |
5945 | /* Encodes "role status" message 'status' for sending in the given |
5946 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5947 | * otherwise a null pointer. */ | |
00467f73 AC |
5948 | struct ofpbuf * |
5949 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5950 | enum ofputil_protocol protocol) | |
5951 | { | |
00467f73 | 5952 | enum ofp_version version; |
00467f73 AC |
5953 | |
5954 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5955 | if (version >= OFP14_VERSION) { |
5956 | struct ofp14_role_status *rstatus; | |
5957 | struct ofpbuf *buf; | |
5958 | ||
5959 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5960 | 0); | |
5961 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5962 | rstatus->role = htonl(status->role); | |
5963 | rstatus->reason = status->reason; | |
5964 | rstatus->generation_id = htonll(status->generation_id); | |
5965 | ||
5966 | return buf; | |
5967 | } else { | |
5968 | return NULL; | |
5969 | } | |
00467f73 AC |
5970 | } |
5971 | ||
5972 | enum ofperr | |
5973 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5974 | struct ofputil_role_status *rs) | |
5975 | { | |
0a2869d5 BP |
5976 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5977 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
00467f73 AC |
5978 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); |
5979 | ||
0a2869d5 | 5980 | const struct ofp14_role_status *r = b.msg; |
00467f73 AC |
5981 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5982 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5983 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5984 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5985 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5986 | } | |
5987 | ||
5988 | rs->role = ntohl(r->role); | |
5989 | rs->generation_id = ntohll(r->generation_id); | |
5990 | rs->reason = r->reason; | |
5991 | ||
5992 | return 0; | |
5993 | } | |
5994 | ||
3c35db62 NR |
5995 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
5996 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
5997 | struct ofpbuf * | |
5998 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
5999 | enum ofputil_protocol protocol) | |
6000 | { | |
6001 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6002 | struct ofpbuf *inner; | |
6003 | ||
6004 | switch (rf->reason) { | |
6005 | case OFPRFR_GROUP_MOD: | |
6006 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
6007 | break; | |
6008 | ||
6009 | case OFPRFR_METER_MOD: | |
6010 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
6011 | break; | |
6012 | ||
d18cc1ee | 6013 | case OFPRFR_N_REASONS: |
3c35db62 NR |
6014 | default: |
6015 | OVS_NOT_REACHED(); | |
6016 | } | |
6017 | ||
6018 | struct ofp_header *inner_oh = inner->data; | |
6019 | inner_oh->xid = rf->xid; | |
6020 | inner_oh->length = htons(inner->size); | |
6021 | ||
6022 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
6023 | ofp_version, htonl(0), | |
6024 | inner->size); | |
6025 | ofpbuf_put(outer, inner->data, inner->size); | |
6026 | ofpbuf_delete(inner); | |
6027 | ||
6028 | return outer; | |
6029 | } | |
6030 | ||
6031 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
6032 | * form into '*rf' and returns 0, and the caller is later responsible for | |
6033 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
6034 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
6035 | enum ofperr | |
6036 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
6037 | struct ofputil_requestforward *rf) | |
6038 | { | |
0a2869d5 | 6039 | struct ofpbuf b = ofpbuf_const_initializer(outer, ntohs(outer->length)); |
3c35db62 NR |
6040 | |
6041 | /* Skip past outer message. */ | |
6042 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
6043 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
6044 | ||
6045 | /* Validate inner message. */ | |
6046 | if (b.size < sizeof(struct ofp_header)) { | |
6047 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6048 | } | |
6049 | const struct ofp_header *inner = b.data; | |
6050 | unsigned int inner_len = ntohs(inner->length); | |
6051 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
6052 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6053 | } | |
6054 | if (inner->version != outer->version) { | |
6055 | return OFPERR_OFPBRC_BAD_VERSION; | |
6056 | } | |
6057 | ||
6058 | /* Parse inner message. */ | |
6059 | enum ofptype type; | |
0a2869d5 | 6060 | enum ofperr error = ofptype_decode(&type, inner); |
3c35db62 NR |
6061 | if (error) { |
6062 | return error; | |
6063 | } | |
6064 | ||
6065 | rf->xid = inner->xid; | |
6066 | if (type == OFPTYPE_GROUP_MOD) { | |
6067 | rf->reason = OFPRFR_GROUP_MOD; | |
6068 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
6069 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
6070 | if (error) { | |
6071 | free(rf->group_mod); | |
6072 | return error; | |
6073 | } | |
6074 | } else if (type == OFPTYPE_METER_MOD) { | |
6075 | rf->reason = OFPRFR_METER_MOD; | |
6076 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
6077 | ofpbuf_init(&rf->bands, 64); | |
6078 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
6079 | if (error) { | |
6080 | free(rf->meter_mod); | |
6081 | ofpbuf_uninit(&rf->bands); | |
6082 | return error; | |
6083 | } | |
6084 | } else { | |
6085 | return OFPERR_OFPBFC_MSG_UNSUP; | |
6086 | } | |
6087 | ||
6088 | return 0; | |
6089 | } | |
6090 | ||
6091 | /* Frees the content of 'rf', which should have been initialized through a | |
6092 | * successful call to ofputil_decode_requestforward(). */ | |
6093 | void | |
6094 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
6095 | { | |
6096 | if (!rf) { | |
6097 | return; | |
6098 | } | |
6099 | ||
6100 | switch (rf->reason) { | |
6101 | case OFPRFR_GROUP_MOD: | |
6102 | ofputil_uninit_group_mod(rf->group_mod); | |
6103 | free(rf->group_mod); | |
6104 | break; | |
6105 | ||
6106 | case OFPRFR_METER_MOD: | |
6107 | ofpbuf_uninit(&rf->bands); | |
6108 | free(rf->meter_mod); | |
d18cc1ee AA |
6109 | break; |
6110 | ||
6111 | case OFPRFR_N_REASONS: | |
6112 | OVS_NOT_REACHED(); | |
3c35db62 NR |
6113 | } |
6114 | } | |
6115 | ||
307975da SH |
6116 | /* Table stats. */ |
6117 | ||
3c1bb396 BP |
6118 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
6119 | * matched and a field that must be wildcarded. This function returns a bitmap | |
6120 | * that contains both kinds of fields. */ | |
6121 | static struct mf_bitmap | |
6122 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
6123 | { | |
6124 | struct mf_bitmap wc = features->match; | |
6125 | bitmap_not(wc.bm, MFF_N_IDS); | |
6126 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
6127 | return wc; | |
6128 | } | |
6129 | ||
6130 | struct ofp10_wc_map { | |
6131 | enum ofp10_flow_wildcards wc10; | |
6132 | enum mf_field_id mf; | |
6133 | }; | |
6134 | ||
6135 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
6136 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
6137 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
6138 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
6139 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
6140 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
6141 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
6142 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
6143 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
6144 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
6145 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
6146 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6147 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
6148 | }; | |
6149 | ||
6150 | static ovs_be32 | |
6151 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
6152 | { | |
6153 | const struct ofp10_wc_map *p; | |
6154 | uint32_t wc10 = 0; | |
6155 | ||
6156 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6157 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6158 | wc10 |= p->wc10; | |
6159 | } | |
6160 | } | |
6161 | return htonl(wc10); | |
6162 | } | |
6163 | ||
6164 | static struct mf_bitmap | |
6165 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
6166 | { | |
6167 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6168 | const struct ofp10_wc_map *p; | |
6169 | uint32_t wc10 = ntohl(wc10_); | |
6170 | ||
6171 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6172 | if (wc10 & p->wc10) { | |
6173 | bitmap_set1(fields.bm, p->mf); | |
6174 | } | |
6175 | } | |
6176 | return fields; | |
6177 | } | |
6178 | ||
307975da | 6179 | static void |
3c1bb396 BP |
6180 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
6181 | const struct ofputil_table_features *features, | |
307975da SH |
6182 | struct ofpbuf *buf) |
6183 | { | |
3c1bb396 | 6184 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 6185 | struct ofp10_table_stats *out; |
307975da | 6186 | |
3bdc692b | 6187 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6188 | out->table_id = features->table_id; |
6189 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6190 | out->wildcards = mf_bitmap_to_of10(&wc); | |
6191 | out->max_entries = htonl(features->max_entries); | |
6192 | out->active_count = htonl(stats->active_count); | |
6193 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
6194 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
6195 | } | |
6196 | ||
6197 | struct ofp11_wc_map { | |
6198 | enum ofp11_flow_match_fields wc11; | |
6199 | enum mf_field_id mf; | |
6200 | }; | |
6201 | ||
6202 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
6203 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
6204 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
6205 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6206 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
6207 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
6208 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
6209 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
6210 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
6211 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
6212 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
6213 | /* I don't know what OFPFMF11_TYPE means. */ | |
6214 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
6215 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
6216 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
6217 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
6218 | { OFPFMF11_METADATA, MFF_METADATA }, | |
6219 | }; | |
6220 | ||
6221 | static ovs_be32 | |
6222 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
6223 | { | |
6224 | const struct ofp11_wc_map *p; | |
6225 | uint32_t wc11 = 0; | |
6226 | ||
6227 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6228 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6229 | wc11 |= p->wc11; | |
307975da SH |
6230 | } |
6231 | } | |
3c1bb396 | 6232 | return htonl(wc11); |
307975da SH |
6233 | } |
6234 | ||
3c1bb396 BP |
6235 | static struct mf_bitmap |
6236 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
6237 | { | |
6238 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6239 | const struct ofp11_wc_map *p; | |
6240 | uint32_t wc11 = ntohl(wc11_); | |
6241 | ||
6242 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6243 | if (wc11 & p->wc11) { | |
6244 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
6245 | } |
6246 | } | |
3c1bb396 | 6247 | return fields; |
307975da SH |
6248 | } |
6249 | ||
6250 | static void | |
3c1bb396 BP |
6251 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
6252 | const struct ofputil_table_features *features, | |
307975da SH |
6253 | struct ofpbuf *buf) |
6254 | { | |
3c1bb396 | 6255 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
6256 | struct ofp11_table_stats *out; |
6257 | ||
3bdc692b | 6258 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6259 | out->table_id = features->table_id; |
6260 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6261 | out->wildcards = mf_bitmap_to_of11(&wc); | |
6262 | out->match = mf_bitmap_to_of11(&features->match); | |
6263 | out->instructions = ovsinst_bitmap_to_openflow( | |
6264 | features->nonmiss.instructions, OFP11_VERSION); | |
6265 | out->write_actions = ofpact_bitmap_to_openflow( | |
6266 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
6267 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6268 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
6269 | out->config = htonl(features->miss_config); | |
6270 | out->max_entries = htonl(features->max_entries); | |
6271 | out->active_count = htonl(stats->active_count); | |
6272 | out->lookup_count = htonll(stats->lookup_count); | |
6273 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
6274 | } |
6275 | ||
6240624b | 6276 | static void |
3c1bb396 BP |
6277 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
6278 | const struct ofputil_table_features *features, | |
6240624b BP |
6279 | struct ofpbuf *buf) |
6280 | { | |
08d1e234 | 6281 | struct ofp12_table_stats *out; |
6240624b | 6282 | |
08d1e234 | 6283 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6284 | out->table_id = features->table_id; |
6285 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
6286 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
6287 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
6288 | OFP12_VERSION); |
6289 | out->write_actions = ofpact_bitmap_to_openflow( | |
6290 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
6291 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6292 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 6293 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 6294 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 6295 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
6296 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
6297 | out->metadata_match = features->metadata_match; | |
6298 | out->metadata_write = features->metadata_write; | |
6299 | out->instructions = ovsinst_bitmap_to_openflow( | |
6300 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
6301 | out->config = ofputil_encode_table_config(features->miss_config, |
6302 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 6303 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 6304 | OFP12_VERSION); |
3c1bb396 BP |
6305 | out->max_entries = htonl(features->max_entries); |
6306 | out->active_count = htonl(stats->active_count); | |
6307 | out->lookup_count = htonll(stats->lookup_count); | |
6308 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
6309 | } |
6310 | ||
2e1ae200 | 6311 | static void |
3c1bb396 | 6312 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
6313 | struct ofpbuf *buf) |
6314 | { | |
6315 | struct ofp13_table_stats *out; | |
6316 | ||
3c1bb396 BP |
6317 | out = ofpbuf_put_zeros(buf, sizeof *out); |
6318 | out->table_id = stats->table_id; | |
6319 | out->active_count = htonl(stats->active_count); | |
6320 | out->lookup_count = htonll(stats->lookup_count); | |
6321 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
6322 | } |
6323 | ||
307975da | 6324 | struct ofpbuf * |
3c1bb396 | 6325 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 6326 | { |
3c1bb396 BP |
6327 | return ofpraw_alloc_stats_reply(request, 0); |
6328 | } | |
307975da | 6329 | |
3c1bb396 BP |
6330 | void |
6331 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
6332 | const struct ofputil_table_stats *stats, | |
6333 | const struct ofputil_table_features *features) | |
6334 | { | |
6fd6ed71 | 6335 | struct ofp_header *oh = reply->header; |
307975da | 6336 | |
3c1bb396 | 6337 | ovs_assert(stats->table_id == features->table_id); |
307975da | 6338 | |
3c1bb396 BP |
6339 | switch ((enum ofp_version) oh->version) { |
6340 | case OFP10_VERSION: | |
6341 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
6342 | break; | |
307975da | 6343 | |
3c1bb396 BP |
6344 | case OFP11_VERSION: |
6345 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
6346 | break; | |
307975da | 6347 | |
3c1bb396 BP |
6348 | case OFP12_VERSION: |
6349 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
6350 | break; | |
2e1ae200 | 6351 | |
3c1bb396 BP |
6352 | case OFP13_VERSION: |
6353 | case OFP14_VERSION: | |
6354 | case OFP15_VERSION: | |
6355 | ofputil_put_ofp13_table_stats(stats, reply); | |
6356 | break; | |
6357 | ||
6358 | default: | |
6359 | OVS_NOT_REACHED(); | |
307975da | 6360 | } |
3c1bb396 | 6361 | } |
307975da | 6362 | |
3c1bb396 BP |
6363 | static int |
6364 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
6365 | struct ofputil_table_stats *stats, | |
6366 | struct ofputil_table_features *features) | |
6367 | { | |
6368 | struct ofp10_table_stats *ots; | |
6369 | ||
6370 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6371 | if (!ots) { | |
6372 | return OFPERR_OFPBRC_BAD_LEN; | |
6373 | } | |
6374 | ||
6375 | features->table_id = ots->table_id; | |
6376 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6377 | features->max_entries = ntohl(ots->max_entries); | |
6378 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6379 | ||
6380 | stats->table_id = ots->table_id; | |
6381 | stats->active_count = ntohl(ots->active_count); | |
6382 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6383 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6384 | ||
6385 | return 0; | |
6386 | } | |
6387 | ||
6388 | static int | |
6389 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6390 | struct ofputil_table_stats *stats, | |
6391 | struct ofputil_table_features *features) | |
6392 | { | |
6393 | struct ofp11_table_stats *ots; | |
6394 | ||
6395 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6396 | if (!ots) { | |
6397 | return OFPERR_OFPBRC_BAD_LEN; | |
6398 | } | |
6399 | ||
6400 | features->table_id = ots->table_id; | |
6401 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6402 | features->max_entries = ntohl(ots->max_entries); | |
6403 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6404 | ots->instructions, OFP11_VERSION); | |
6405 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6406 | ots->write_actions, OFP11_VERSION); | |
6407 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6408 | ots->write_actions, OFP11_VERSION); | |
6409 | features->miss = features->nonmiss; | |
82c22d34 BP |
6410 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6411 | OFP11_VERSION); | |
3c1bb396 BP |
6412 | features->match = mf_bitmap_from_of11(ots->match); |
6413 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6414 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6415 | ||
6416 | stats->table_id = ots->table_id; | |
6417 | stats->active_count = ntohl(ots->active_count); | |
6418 | stats->lookup_count = ntohll(ots->lookup_count); | |
6419 | stats->matched_count = ntohll(ots->matched_count); | |
6420 | ||
6421 | return 0; | |
6422 | } | |
6423 | ||
6424 | static int | |
6425 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6426 | struct ofputil_table_stats *stats, | |
6427 | struct ofputil_table_features *features) | |
6428 | { | |
6429 | struct ofp12_table_stats *ots; | |
6430 | ||
6431 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6432 | if (!ots) { | |
6433 | return OFPERR_OFPBRC_BAD_LEN; | |
6434 | } | |
6435 | ||
6436 | features->table_id = ots->table_id; | |
6437 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6438 | features->metadata_match = ots->metadata_match; | |
6439 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6440 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6441 | OFP12_VERSION); | |
3c1bb396 BP |
6442 | features->max_entries = ntohl(ots->max_entries); |
6443 | ||
6444 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6445 | ots->instructions, OFP12_VERSION); | |
6446 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6447 | ots->write_actions, OFP12_VERSION); | |
6448 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6449 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6450 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6451 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6452 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6453 | ots->apply_setfields, OFP12_VERSION); |
6454 | features->miss = features->nonmiss; | |
6455 | ||
178742f9 BP |
6456 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6457 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6458 | OFP12_VERSION); | |
3c1bb396 BP |
6459 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6460 | ||
6461 | stats->table_id = ots->table_id; | |
6462 | stats->active_count = ntohl(ots->active_count); | |
6463 | stats->lookup_count = ntohll(ots->lookup_count); | |
6464 | stats->matched_count = ntohll(ots->matched_count); | |
6465 | ||
6466 | return 0; | |
6467 | } | |
6468 | ||
6469 | static int | |
6470 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6471 | struct ofputil_table_stats *stats, | |
6472 | struct ofputil_table_features *features) | |
6473 | { | |
6474 | struct ofp13_table_stats *ots; | |
6475 | ||
6476 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6477 | if (!ots) { | |
6478 | return OFPERR_OFPBRC_BAD_LEN; | |
6479 | } | |
6480 | ||
6481 | features->table_id = ots->table_id; | |
6482 | ||
6483 | stats->table_id = ots->table_id; | |
6484 | stats->active_count = ntohl(ots->active_count); | |
6485 | stats->lookup_count = ntohll(ots->lookup_count); | |
6486 | stats->matched_count = ntohll(ots->matched_count); | |
6487 | ||
6488 | return 0; | |
6489 | } | |
6490 | ||
6491 | int | |
6492 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6493 | struct ofputil_table_stats *stats, | |
6494 | struct ofputil_table_features *features) | |
6495 | { | |
6496 | const struct ofp_header *oh; | |
6497 | ||
6fd6ed71 | 6498 | if (!msg->header) { |
3c1bb396 BP |
6499 | ofpraw_pull_assert(msg); |
6500 | } | |
6fd6ed71 | 6501 | oh = msg->header; |
3c1bb396 | 6502 | |
6fd6ed71 | 6503 | if (!msg->size) { |
3c1bb396 BP |
6504 | return EOF; |
6505 | } | |
6506 | ||
6507 | memset(stats, 0, sizeof *stats); | |
6508 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6509 | features->supports_eviction = -1; |
6510 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6511 | |
6512 | switch ((enum ofp_version) oh->version) { | |
6513 | case OFP10_VERSION: | |
6514 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6515 | ||
6516 | case OFP11_VERSION: | |
6517 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6518 | ||
6519 | case OFP12_VERSION: | |
6520 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6521 | ||
6522 | case OFP13_VERSION: | |
6523 | case OFP14_VERSION: | |
6524 | case OFP15_VERSION: | |
6525 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
6526 | ||
6527 | default: | |
6528 | OVS_NOT_REACHED(); | |
6529 | } | |
307975da SH |
6530 | } |
6531 | \f | |
2b07c8b1 BP |
6532 | /* ofputil_flow_monitor_request */ |
6533 | ||
6534 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6535 | * ofputil_flow_monitor_request in 'rq'. | |
6536 | * | |
6537 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6538 | * message. Calling this function multiple times for a single 'msg' iterates | |
6539 | * through the requests. The caller must initially leave 'msg''s layer | |
6540 | * pointers null and not modify them between calls. | |
6541 | * | |
6542 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6543 | * otherwise an OFPERR_* value. */ | |
6544 | int | |
6545 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6546 | struct ofpbuf *msg) | |
6547 | { | |
6548 | struct nx_flow_monitor_request *nfmr; | |
6549 | uint16_t flags; | |
6550 | ||
6fd6ed71 | 6551 | if (!msg->header) { |
982697a4 | 6552 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6553 | } |
6554 | ||
6fd6ed71 | 6555 | if (!msg->size) { |
2b07c8b1 BP |
6556 | return EOF; |
6557 | } | |
6558 | ||
6559 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6560 | if (!nfmr) { | |
437d0d22 | 6561 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6562 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6563 | return OFPERR_OFPBRC_BAD_LEN; |
6564 | } | |
6565 | ||
6566 | flags = ntohs(nfmr->flags); | |
6567 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6568 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6569 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6570 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6571 | flags); | |
04f9f286 | 6572 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6573 | } |
6574 | ||
6575 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6576 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6577 | } | |
6578 | ||
6579 | rq->id = ntohl(nfmr->id); | |
6580 | rq->flags = flags; | |
4e022ec0 | 6581 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6582 | rq->table_id = nfmr->table_id; |
6583 | ||
81a76618 | 6584 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
6585 | } |
6586 | ||
6587 | void | |
6588 | ofputil_append_flow_monitor_request( | |
6589 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6590 | { | |
6591 | struct nx_flow_monitor_request *nfmr; | |
6592 | size_t start_ofs; | |
6593 | int match_len; | |
6594 | ||
6fd6ed71 | 6595 | if (!msg->size) { |
982697a4 | 6596 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6597 | } |
6598 | ||
6fd6ed71 | 6599 | start_ofs = msg->size; |
2b07c8b1 | 6600 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6601 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6602 | |
6603 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6604 | nfmr->id = htonl(rq->id); | |
6605 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6606 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6607 | nfmr->match_len = htons(match_len); |
6608 | nfmr->table_id = rq->table_id; | |
6609 | } | |
6610 | ||
6611 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6612 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6613 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6614 | * |
6615 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6616 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6617 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6618 | * will point into the 'ofpacts' buffer. | |
6619 | * | |
6620 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6621 | * this function multiple times for a single 'msg' iterates through the | |
6622 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6623 | * not modify them between calls. | |
6624 | * | |
6625 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6626 | * otherwise an OFPERR_* value. */ | |
6627 | int | |
6628 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6629 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6630 | { | |
6631 | struct nx_flow_update_header *nfuh; | |
6632 | unsigned int length; | |
e3f8f887 | 6633 | struct ofp_header *oh; |
2b07c8b1 | 6634 | |
6fd6ed71 | 6635 | if (!msg->header) { |
982697a4 | 6636 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6637 | } |
6638 | ||
9abca1e5 | 6639 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6640 | if (!msg->size) { |
2b07c8b1 BP |
6641 | return EOF; |
6642 | } | |
6643 | ||
6fd6ed71 | 6644 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6645 | goto bad_len; |
6646 | } | |
6647 | ||
6fd6ed71 | 6648 | oh = msg->header; |
e3f8f887 | 6649 | |
6fd6ed71 | 6650 | nfuh = msg->data; |
2b07c8b1 BP |
6651 | update->event = ntohs(nfuh->event); |
6652 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6653 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6654 | goto bad_len; |
6655 | } | |
6656 | ||
6657 | if (update->event == NXFME_ABBREV) { | |
6658 | struct nx_flow_update_abbrev *nfua; | |
6659 | ||
6660 | if (length != sizeof *nfua) { | |
6661 | goto bad_len; | |
6662 | } | |
6663 | ||
6664 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6665 | update->xid = nfua->xid; | |
6666 | return 0; | |
6667 | } else if (update->event == NXFME_ADDED | |
6668 | || update->event == NXFME_DELETED | |
6669 | || update->event == NXFME_MODIFIED) { | |
6670 | struct nx_flow_update_full *nfuf; | |
6671 | unsigned int actions_len; | |
6672 | unsigned int match_len; | |
6673 | enum ofperr error; | |
6674 | ||
6675 | if (length < sizeof *nfuf) { | |
6676 | goto bad_len; | |
6677 | } | |
6678 | ||
6679 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6680 | match_len = ntohs(nfuf->match_len); | |
6681 | if (sizeof *nfuf + match_len > length) { | |
6682 | goto bad_len; | |
6683 | } | |
6684 | ||
6685 | update->reason = ntohs(nfuf->reason); | |
6686 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6687 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6688 | update->table_id = nfuf->table_id; | |
6689 | update->cookie = nfuf->cookie; | |
81a76618 | 6690 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6691 | |
81a76618 | 6692 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6693 | if (error) { |
6694 | return error; | |
6695 | } | |
6696 | ||
6697 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6698 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6699 | ofpacts); | |
2b07c8b1 BP |
6700 | if (error) { |
6701 | return error; | |
6702 | } | |
6703 | ||
6fd6ed71 PS |
6704 | update->ofpacts = ofpacts->data; |
6705 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6706 | return 0; |
6707 | } else { | |
6708 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6709 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6710 | ntohs(nfuh->event)); | |
15549878 | 6711 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6712 | } |
6713 | ||
6714 | bad_len: | |
437d0d22 | 6715 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6716 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6717 | return OFPERR_OFPBRC_BAD_LEN; |
6718 | } | |
6719 | ||
6720 | uint32_t | |
6721 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6722 | { | |
982697a4 BP |
6723 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6724 | ||
6725 | return ntohl(cancel->id); | |
2b07c8b1 | 6726 | } |
9e1fd49b | 6727 | |
2b07c8b1 BP |
6728 | struct ofpbuf * |
6729 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6730 | { | |
6731 | struct nx_flow_monitor_cancel *nfmc; | |
6732 | struct ofpbuf *msg; | |
6733 | ||
982697a4 BP |
6734 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6735 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6736 | nfmc->id = htonl(id); |
6737 | return msg; | |
6738 | } | |
6739 | ||
6740 | void | |
ca6ba700 | 6741 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6742 | { |
6743 | struct ofpbuf *msg; | |
6744 | ||
982697a4 BP |
6745 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6746 | htonl(0), 1024); | |
2b07c8b1 | 6747 | |
417e7e66 BW |
6748 | ovs_list_init(replies); |
6749 | ovs_list_push_back(replies, &msg->list_node); | |
2b07c8b1 BP |
6750 | } |
6751 | ||
6752 | void | |
6753 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6754 | struct ovs_list *replies) |
2b07c8b1 | 6755 | { |
e28ac5cf | 6756 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6757 | struct nx_flow_update_header *nfuh; |
6758 | struct ofpbuf *msg; | |
6759 | size_t start_ofs; | |
6760 | ||
417e7e66 | 6761 | msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 6762 | start_ofs = msg->size; |
2b07c8b1 BP |
6763 | |
6764 | if (update->event == NXFME_ABBREV) { | |
6765 | struct nx_flow_update_abbrev *nfua; | |
6766 | ||
6767 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6768 | nfua->xid = update->xid; | |
6769 | } else { | |
6770 | struct nx_flow_update_full *nfuf; | |
6771 | int match_len; | |
6772 | ||
6773 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6774 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6775 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6776 | version); | |
2b07c8b1 BP |
6777 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6778 | nfuf->reason = htons(update->reason); | |
81a76618 | 6779 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6780 | nfuf->idle_timeout = htons(update->idle_timeout); |
6781 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6782 | nfuf->match_len = htons(match_len); | |
6783 | nfuf->table_id = update->table_id; | |
6784 | nfuf->cookie = update->cookie; | |
6785 | } | |
6786 | ||
6787 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6788 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6789 | nfuh->event = htons(update->event); |
6790 | ||
982697a4 | 6791 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6792 | } |
6793 | \f | |
c6a93eb7 | 6794 | struct ofpbuf * |
de0f3156 SH |
6795 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6796 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6797 | { |
de0f3156 | 6798 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6799 | struct ofpbuf *msg; |
6800 | size_t size; | |
6801 | ||
982697a4 | 6802 | size = po->ofpacts_len; |
c6a93eb7 BP |
6803 | if (po->buffer_id == UINT32_MAX) { |
6804 | size += po->packet_len; | |
6805 | } | |
6806 | ||
de0f3156 SH |
6807 | switch (ofp_version) { |
6808 | case OFP10_VERSION: { | |
31a9e63f | 6809 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6810 | size_t actions_ofs; |
6811 | ||
6812 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6813 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6814 | actions_ofs = msg->size; |
e3f8f887 JR |
6815 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6816 | ofp_version); | |
de0f3156 | 6817 | |
6fd6ed71 | 6818 | opo = msg->msg; |
de0f3156 | 6819 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6820 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6821 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6822 | break; |
6823 | } | |
f25d0cf3 | 6824 | |
de0f3156 | 6825 | case OFP11_VERSION: |
2e1ae200 | 6826 | case OFP12_VERSION: |
c37c0382 | 6827 | case OFP13_VERSION: |
42dccab5 BP |
6828 | case OFP14_VERSION: |
6829 | case OFP15_VERSION: { | |
7c1b1a0d SH |
6830 | struct ofp11_packet_out *opo; |
6831 | size_t len; | |
6832 | ||
6833 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6834 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6835 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6836 | ofp_version); | |
6fd6ed71 | 6837 | opo = msg->msg; |
7c1b1a0d SH |
6838 | opo->buffer_id = htonl(po->buffer_id); |
6839 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6840 | opo->actions_len = htons(len); | |
6841 | break; | |
6842 | } | |
6843 | ||
de0f3156 | 6844 | default: |
428b2edd | 6845 | OVS_NOT_REACHED(); |
de0f3156 | 6846 | } |
f25d0cf3 | 6847 | |
c6a93eb7 BP |
6848 | if (po->buffer_id == UINT32_MAX) { |
6849 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6850 | } | |
f25d0cf3 | 6851 | |
982697a4 | 6852 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6853 | |
6854 | return msg; | |
6855 | } | |
d1e2cf21 | 6856 | \f |
fa37b408 BP |
6857 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6858 | struct ofpbuf * | |
1a126c0c | 6859 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6860 | { |
1a126c0c | 6861 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6862 | htonl(0), 0); |
fa37b408 BP |
6863 | } |
6864 | ||
6865 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6866 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6867 | struct ofpbuf * | |
6868 | make_echo_reply(const struct ofp_header *rq) | |
6869 | { | |
0a2869d5 | 6870 | struct ofpbuf rq_buf = ofpbuf_const_initializer(rq, ntohs(rq->length)); |
982697a4 BP |
6871 | ofpraw_pull_assert(&rq_buf); |
6872 | ||
0a2869d5 BP |
6873 | struct ofpbuf *reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, |
6874 | rq, rq_buf.size); | |
6fd6ed71 | 6875 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); |
982697a4 | 6876 | return reply; |
fa37b408 BP |
6877 | } |
6878 | ||
efb80167 | 6879 | struct ofpbuf * |
a0ae0b6e | 6880 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6881 | { |
a0ae0b6e SH |
6882 | enum ofpraw type; |
6883 | ||
6884 | switch (ofp_version) { | |
42dccab5 | 6885 | case OFP15_VERSION: |
c37c0382 | 6886 | case OFP14_VERSION: |
2e1ae200 | 6887 | case OFP13_VERSION: |
a0ae0b6e SH |
6888 | case OFP12_VERSION: |
6889 | case OFP11_VERSION: | |
6890 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6891 | break; | |
6892 | ||
6893 | case OFP10_VERSION: | |
6894 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6895 | break; | |
6896 | ||
6897 | default: | |
428b2edd | 6898 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6899 | } |
6900 | ||
6901 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6902 | } |
6903 | ||
7257b535 | 6904 | const char * |
ad99e2ed | 6905 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6906 | { |
ad99e2ed BP |
6907 | switch (frag) { |
6908 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6909 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6910 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6911 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6912 | } |
6913 | ||
428b2edd | 6914 | OVS_NOT_REACHED(); |
7257b535 BP |
6915 | } |
6916 | ||
6917 | bool | |
ad99e2ed BP |
6918 | ofputil_frag_handling_from_string(const char *s, |
6919 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6920 | { |
6921 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6922 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6923 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6924 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6925 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6926 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6927 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6928 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6929 | } else { |
6930 | return false; | |
6931 | } | |
6932 | return true; | |
6933 | } | |
6934 | ||
7b7503ea BP |
6935 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6936 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6937 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6938 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6939 | * |
6940 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6941 | enum ofperr | |
4e022ec0 | 6942 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6943 | { |
6944 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6945 | ||
4e022ec0 AW |
6946 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6947 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6948 | return 0; |
4e022ec0 AW |
6949 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6950 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6951 | return 0; |
6952 | } else { | |
bc146369 | 6953 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6954 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6955 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6956 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6957 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6958 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6959 | } | |
6960 | } | |
6961 | ||
6962 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6963 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6964 | * | |
6965 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6966 | ovs_be32 | |
4e022ec0 | 6967 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6968 | { |
4e022ec0 AW |
6969 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6970 | ? ofp_to_u16(ofp10_port) | |
6971 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6972 | } |
6973 | ||
39dc9082 BP |
6974 | #define OFPUTIL_NAMED_PORTS \ |
6975 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6976 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6977 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6978 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6979 | OFPUTIL_NAMED_PORT(ALL) \ | |
6980 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6981 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6982 | OFPUTIL_NAMED_PORT(ANY) \ |
6983 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6984 | |
6985 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6986 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6987 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6988 | OFPUTIL_NAMED_PORT(NONE) |
6989 | ||
8010100b BP |
6990 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6991 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6992 | * (e.g. "LOCAL"). | |
c6100d92 | 6993 | * |
8010100b BP |
6994 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6995 | * or name. The caller should issue an error message in this case, because | |
6996 | * this function usually does not. (This gives the caller an opportunity to | |
6997 | * look up the port name another way, e.g. by contacting the switch and listing | |
6998 | * the names of all its ports). | |
c6100d92 BP |
6999 | * |
7000 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
7001 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
7002 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 7003 | bool |
4e022ec0 | 7004 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 7005 | { |
5b23ff7e | 7006 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 7007 | |
5b23ff7e JR |
7008 | if (*s == '-') { |
7009 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
7010 | return false; | |
7011 | } | |
8010100b | 7012 | *portp = 0; |
c6100d92 | 7013 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
7014 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
7015 | /* Pass. */ | |
7016 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
7017 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
7018 | "be translated to %u when talking to an OF1.1 or " | |
7019 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 7020 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
7021 | char name[OFP_MAX_PORT_NAME_LEN]; |
7022 | ||
7023 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
7024 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
7025 | "for compatibility with OpenFlow 1.1 and later", | |
7026 | name, port32); | |
4e022ec0 | 7027 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 7028 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 7029 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 7030 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 7031 | return false; |
c6100d92 | 7032 | } else { |
4e022ec0 | 7033 | port32 -= OFPP11_OFFSET; |
c6100d92 | 7034 | } |
4e022ec0 AW |
7035 | |
7036 | *portp = u16_to_ofp(port32); | |
7037 | return true; | |
c6100d92 BP |
7038 | } else { |
7039 | struct pair { | |
7040 | const char *name; | |
4e022ec0 | 7041 | ofp_port_t value; |
c6100d92 BP |
7042 | }; |
7043 | static const struct pair pairs[] = { | |
39dc9082 | 7044 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 7045 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 7046 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
7047 | }; |
7048 | const struct pair *p; | |
39dc9082 | 7049 | |
c6100d92 BP |
7050 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
7051 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
7052 | *portp = p->value; |
7053 | return true; | |
c6100d92 | 7054 | } |
39dc9082 | 7055 | } |
8010100b | 7056 | return false; |
39dc9082 | 7057 | } |
39dc9082 BP |
7058 | } |
7059 | ||
7060 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
7061 | * Most ports' string representation is just the port number, but for special | |
7062 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
7063 | void | |
4e022ec0 | 7064 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 7065 | { |
28b11432 BP |
7066 | char name[OFP_MAX_PORT_NAME_LEN]; |
7067 | ||
7068 | ofputil_port_to_string(port, name, sizeof name); | |
7069 | ds_put_cstr(s, name); | |
7070 | } | |
39dc9082 | 7071 | |
28b11432 BP |
7072 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
7073 | * representation of OpenFlow port number 'port'. Most ports are represented | |
7074 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
7075 | * by name, e.g. "LOCAL". */ | |
7076 | void | |
7077 | ofputil_port_to_string(ofp_port_t port, | |
7078 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
7079 | { | |
39dc9082 | 7080 | switch (port) { |
28b11432 BP |
7081 | #define OFPUTIL_NAMED_PORT(NAME) \ |
7082 | case OFPP_##NAME: \ | |
7083 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
7084 | break; | |
39dc9082 BP |
7085 | OFPUTIL_NAMED_PORTS |
7086 | #undef OFPUTIL_NAMED_PORT | |
7087 | ||
7088 | default: | |
28b11432 BP |
7089 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
7090 | break; | |
39dc9082 | 7091 | } |
39dc9082 BP |
7092 | } |
7093 | ||
7395c052 NZ |
7094 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
7095 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
7096 | * (either "ANY" or "ALL"). | |
7097 | * | |
7098 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
7099 | * name. */ | |
7100 | bool | |
7101 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
7102 | { | |
7103 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 7104 | *group_idp = OFPG_ANY; |
7395c052 | 7105 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 7106 | *group_idp = OFPG_ALL; |
7395c052 NZ |
7107 | } else if (!str_to_uint(s, 10, group_idp)) { |
7108 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
7109 | "32-bit nonnegative integers or the keywords ANY or " | |
7110 | "ALL.)", s); | |
7111 | return false; | |
7112 | } | |
7113 | ||
7114 | return true; | |
7115 | } | |
7116 | ||
7117 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
7118 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 7119 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
7120 | void |
7121 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
7122 | { | |
7123 | char name[MAX_GROUP_NAME_LEN]; | |
7124 | ||
7125 | ofputil_group_to_string(group_id, name, sizeof name); | |
7126 | ds_put_cstr(s, name); | |
7127 | } | |
7128 | ||
7129 | ||
7130 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
7131 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 7132 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
7133 | * by name, e.g. "ALL". */ |
7134 | void | |
7135 | ofputil_group_to_string(uint32_t group_id, | |
7136 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
7137 | { | |
7138 | switch (group_id) { | |
30ef36c6 | 7139 | case OFPG_ALL: |
7395c052 NZ |
7140 | ovs_strlcpy(namebuf, "ALL", bufsize); |
7141 | break; | |
7142 | ||
30ef36c6 | 7143 | case OFPG_ANY: |
7395c052 NZ |
7144 | ovs_strlcpy(namebuf, "ANY", bufsize); |
7145 | break; | |
7146 | ||
7147 | default: | |
7148 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
7149 | break; | |
7150 | } | |
7151 | } | |
7152 | ||
2be393ed JP |
7153 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
7154 | * 'ofp_version', tries to pull the first element from the array. If | |
7155 | * successful, initializes '*pp' with an abstract representation of the | |
7156 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
7157 | * On an error, returns a positive OFPERR_* value. */ | |
7158 | int | |
2e3fa633 | 7159 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
7160 | struct ofputil_phy_port *pp) |
7161 | { | |
8c3cc785 BP |
7162 | memset(pp, 0, sizeof *pp); |
7163 | ||
2e3fa633 SH |
7164 | switch (ofp_version) { |
7165 | case OFP10_VERSION: { | |
2be393ed JP |
7166 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
7167 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
7168 | } |
7169 | case OFP11_VERSION: | |
2e1ae200 JR |
7170 | case OFP12_VERSION: |
7171 | case OFP13_VERSION: { | |
2be393ed JP |
7172 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
7173 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
7174 | } | |
c37c0382 | 7175 | case OFP14_VERSION: |
42dccab5 | 7176 | case OFP15_VERSION: |
6fd6ed71 | 7177 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 7178 | default: |
428b2edd | 7179 | OVS_NOT_REACHED(); |
2e3fa633 | 7180 | } |
2be393ed JP |
7181 | } |
7182 | ||
3cbd9931 | 7183 | static void |
81a76618 | 7184 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
7185 | { |
7186 | enum { | |
7187 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
7188 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
7189 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 7190 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
7191 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
7192 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 7193 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
7194 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
7195 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
7196 | } may_match; |
7197 | ||
7198 | struct flow_wildcards wc; | |
7199 | ||
7200 | /* Figure out what fields may be matched. */ | |
81a76618 | 7201 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 7202 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
7203 | if (match->flow.nw_proto == IPPROTO_TCP || |
7204 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 7205 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 7206 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
7207 | may_match |= MAY_TP_ADDR; |
7208 | } | |
81a76618 | 7209 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 7210 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 7211 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
7212 | match->flow.nw_proto == IPPROTO_UDP || |
7213 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 7214 | may_match |= MAY_TP_ADDR; |
81a76618 | 7215 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 7216 | may_match |= MAY_TP_ADDR; |
81a76618 | 7217 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 7218 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 7219 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
7220 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
7221 | } | |
7222 | } | |
8087f5ff MM |
7223 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
7224 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 7225 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
7226 | } else if (eth_type_mpls(match->flow.dl_type)) { |
7227 | may_match = MAY_MPLS; | |
1c0b7503 | 7228 | } else { |
b459a924 BP |
7229 | may_match = 0; |
7230 | } | |
7231 | ||
7232 | /* Clear the fields that may not be matched. */ | |
81a76618 | 7233 | wc = match->wc; |
b459a924 | 7234 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 7235 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
7236 | } |
7237 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 7238 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
7239 | } |
7240 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 7241 | wc.masks.nw_proto = 0; |
b459a924 | 7242 | } |
9e44d715 | 7243 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
7244 | wc.masks.nw_tos = 0; |
7245 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
7246 | } |
7247 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 7248 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
7249 | } |
7250 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 7251 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 7252 | } |
d78477ec | 7253 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
7254 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
7255 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
7256 | } |
7257 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 7258 | wc.masks.nd_target = in6addr_any; |
b459a924 | 7259 | } |
b02475c5 | 7260 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 7261 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 7262 | } |
b459a924 BP |
7263 | |
7264 | /* Log any changes. */ | |
81a76618 | 7265 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 7266 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 7267 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 7268 | |
81a76618 BP |
7269 | match->wc = wc; |
7270 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
7271 | |
7272 | if (log) { | |
81a76618 | 7273 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
7274 | VLOG_INFO("normalization changed ofp_match, details:"); |
7275 | VLOG_INFO(" pre: %s", pre); | |
7276 | VLOG_INFO("post: %s", post); | |
7277 | free(pre); | |
7278 | free(post); | |
7279 | } | |
fa37b408 | 7280 | } |
3f09c339 | 7281 | } |
26c112c2 | 7282 | |
81a76618 | 7283 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
7284 | * |
7285 | * 1. If the type of level N is known, then only the valid fields for that | |
7286 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 7287 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 7288 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 7289 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7290 | * IPv4 flow. |
7291 | * | |
7292 | * 2. If the type of level N is not known (or not understood by Open | |
7293 | * vSwitch), then no fields at all for that level may be specified. For | |
7294 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 7295 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7296 | * SCTP flow. |
7297 | * | |
81a76618 | 7298 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
7299 | * message. */ |
7300 | void | |
81a76618 | 7301 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 7302 | { |
81a76618 | 7303 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
7304 | } |
7305 | ||
81a76618 BP |
7306 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
7307 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
7308 | * sense for use on flows received from elsewhere (so that a bug in the program |
7309 | * that sent them can be reported and corrected). */ | |
7310 | void | |
81a76618 | 7311 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 7312 | { |
81a76618 | 7313 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
7314 | } |
7315 | ||
0ff22822 BP |
7316 | /* Parses a key or a key-value pair from '*stringp'. |
7317 | * | |
7318 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
7319 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
7320 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
7321 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
7322 | * terminators. Returns true. | |
7323 | * | |
7324 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
7325 | * NULL and returns false. */ | |
7326 | bool | |
7327 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
7328 | { | |
7329 | char *pos, *key, *value; | |
7330 | size_t key_len; | |
7331 | ||
7332 | pos = *stringp; | |
7333 | pos += strspn(pos, ", \t\r\n"); | |
7334 | if (*pos == '\0') { | |
7335 | *keyp = *valuep = NULL; | |
7336 | return false; | |
7337 | } | |
7338 | ||
7339 | key = pos; | |
7340 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
7341 | if (key[key_len] == ':' || key[key_len] == '=') { | |
7342 | /* The value can be separated by a colon. */ | |
7343 | size_t value_len; | |
7344 | ||
7345 | value = key + key_len + 1; | |
7346 | value_len = strcspn(value, ", \t\r\n"); | |
7347 | pos = value + value_len + (value[value_len] != '\0'); | |
7348 | value[value_len] = '\0'; | |
7349 | } else if (key[key_len] == '(') { | |
7350 | /* The value can be surrounded by balanced parentheses. The outermost | |
7351 | * set of parentheses is removed. */ | |
7352 | int level = 1; | |
7353 | size_t value_len; | |
7354 | ||
7355 | value = key + key_len + 1; | |
7356 | for (value_len = 0; level > 0; value_len++) { | |
7357 | switch (value[value_len]) { | |
7358 | case '\0': | |
33cadc50 BP |
7359 | level = 0; |
7360 | break; | |
0ff22822 BP |
7361 | |
7362 | case '(': | |
7363 | level++; | |
7364 | break; | |
7365 | ||
7366 | case ')': | |
7367 | level--; | |
7368 | break; | |
7369 | } | |
7370 | } | |
7371 | value[value_len - 1] = '\0'; | |
7372 | pos = value + value_len; | |
7373 | } else { | |
7374 | /* There might be no value at all. */ | |
7375 | value = key + key_len; /* Will become the empty string below. */ | |
7376 | pos = key + key_len + (key[key_len] != '\0'); | |
7377 | } | |
7378 | key[key_len] = '\0'; | |
7379 | ||
7380 | *stringp = pos; | |
7381 | *keyp = key; | |
7382 | *valuep = value; | |
7383 | return true; | |
7384 | } | |
f8e4867e SH |
7385 | |
7386 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7387 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7388 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7389 | struct ofpbuf * | |
4e022ec0 | 7390 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7391 | { |
7392 | struct ofpbuf *request; | |
7393 | ||
7394 | switch (ofp_version) { | |
7395 | case OFP10_VERSION: { | |
7396 | struct ofp10_port_stats_request *req; | |
7397 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7398 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7399 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7400 | break; |
7401 | } | |
7402 | case OFP11_VERSION: | |
2e1ae200 | 7403 | case OFP12_VERSION: |
c37c0382 | 7404 | case OFP13_VERSION: |
42dccab5 BP |
7405 | case OFP14_VERSION: |
7406 | case OFP15_VERSION: { | |
f8e4867e SH |
7407 | struct ofp11_port_stats_request *req; |
7408 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7409 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7410 | req->port_no = ofputil_port_to_ofp11(port); | |
7411 | break; | |
7412 | } | |
7413 | default: | |
428b2edd | 7414 | OVS_NOT_REACHED(); |
f8e4867e SH |
7415 | } |
7416 | ||
7417 | return request; | |
7418 | } | |
7419 | ||
7420 | static void | |
7421 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7422 | struct ofp10_port_stats *ps10) | |
7423 | { | |
4e022ec0 | 7424 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7425 | memset(ps10->pad, 0, sizeof ps10->pad); |
7426 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7427 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7428 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7429 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7430 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7431 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7432 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7433 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7434 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7435 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7436 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7437 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7438 | } | |
7439 | ||
7440 | static void | |
7441 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7442 | struct ofp11_port_stats *ps11) | |
7443 | { | |
7444 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7445 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7446 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7447 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7448 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7449 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7450 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7451 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7452 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7453 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7454 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7455 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7456 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7457 | ps11->collisions = htonll(ops->stats.collisions); | |
7458 | } | |
7459 | ||
2e1ae200 JR |
7460 | static void |
7461 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7462 | struct ofp13_port_stats *ps13) | |
7463 | { | |
7464 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7465 | ps13->duration_sec = htonl(ops->duration_sec); |
7466 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7467 | } |
7468 | ||
5469537b BP |
7469 | static void |
7470 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7471 | struct ovs_list *replies) |
5469537b BP |
7472 | { |
7473 | struct ofp14_port_stats_prop_ethernet *eth; | |
7474 | struct ofp14_port_stats *ps14; | |
7475 | struct ofpbuf *reply; | |
7476 | ||
7477 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7478 | ||
7479 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7480 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7481 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7482 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7483 | ps14->duration_sec = htonl(ops->duration_sec); | |
7484 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7485 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7486 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7487 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7488 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7489 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7490 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7491 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7492 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7493 | ||
303721ee | 7494 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7495 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7496 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7497 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7498 | eth->collisions = htonll(ops->stats.collisions); | |
7499 | } | |
2e1ae200 | 7500 | |
ad4c35fe | 7501 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7502 | void |
ca6ba700 | 7503 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7504 | const struct ofputil_port_stats *ops) |
7505 | { | |
e28ac5cf | 7506 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7507 | case OFP13_VERSION: { |
7508 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7509 | ofputil_port_stats_to_ofp13(ops, reply); | |
7510 | break; | |
7511 | } | |
f8e4867e SH |
7512 | case OFP12_VERSION: |
7513 | case OFP11_VERSION: { | |
7514 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7515 | ofputil_port_stats_to_ofp11(ops, reply); | |
7516 | break; | |
7517 | } | |
7518 | ||
7519 | case OFP10_VERSION: { | |
7520 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7521 | ofputil_port_stats_to_ofp10(ops, reply); | |
7522 | break; | |
7523 | } | |
7524 | ||
c37c0382 | 7525 | case OFP14_VERSION: |
42dccab5 | 7526 | case OFP15_VERSION: |
5469537b | 7527 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7528 | break; |
7529 | ||
f8e4867e | 7530 | default: |
428b2edd | 7531 | OVS_NOT_REACHED(); |
f8e4867e SH |
7532 | } |
7533 | } | |
7534 | ||
7535 | static enum ofperr | |
7536 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7537 | const struct ofp10_port_stats *ps10) | |
7538 | { | |
7539 | memset(ops, 0, sizeof *ops); | |
7540 | ||
4e022ec0 | 7541 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7542 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7543 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7544 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7545 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7546 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7547 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7548 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7549 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7550 | ops->stats.rx_frame_errors = | |
7551 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7552 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7553 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7554 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7555 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7556 | |
7557 | return 0; | |
7558 | } | |
7559 | ||
7560 | static enum ofperr | |
7561 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7562 | const struct ofp11_port_stats *ps11) | |
7563 | { | |
7564 | enum ofperr error; | |
7565 | ||
7566 | memset(ops, 0, sizeof *ops); | |
7567 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7568 | if (error) { | |
7569 | return error; | |
7570 | } | |
7571 | ||
7572 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7573 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7574 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7575 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7576 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7577 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7578 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7579 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7580 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7581 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7582 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7583 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7584 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7585 | |
7586 | return 0; | |
7587 | } | |
7588 | ||
2e1ae200 JR |
7589 | static enum ofperr |
7590 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7591 | const struct ofp13_port_stats *ps13) | |
7592 | { | |
65e0be10 | 7593 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7594 | if (!error) { |
65e0be10 BP |
7595 | ops->duration_sec = ntohl(ps13->duration_sec); |
7596 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7597 | } |
2e1ae200 JR |
7598 | return error; |
7599 | } | |
7600 | ||
5469537b BP |
7601 | static enum ofperr |
7602 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7603 | struct ofputil_port_stats *ops) | |
be0c30df | 7604 | { |
6fd6ed71 | 7605 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7606 | |
6fd6ed71 | 7607 | if (payload->size != sizeof *eth) { |
5469537b BP |
7608 | return OFPERR_OFPBPC_BAD_LEN; |
7609 | } | |
7610 | ||
7611 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7612 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7613 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7614 | ops->stats.collisions = ntohll(eth->collisions); | |
7615 | ||
7616 | return 0; | |
7617 | } | |
7618 | ||
7619 | static enum ofperr | |
7620 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7621 | struct ofpbuf *msg) | |
7622 | { | |
0a2869d5 | 7623 | const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14); |
5469537b BP |
7624 | if (!ps14) { |
7625 | return OFPERR_OFPBRC_BAD_LEN; | |
7626 | } | |
7627 | ||
0a2869d5 | 7628 | size_t len = ntohs(ps14->length); |
6fd6ed71 | 7629 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7630 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7631 | } |
5469537b | 7632 | len -= sizeof *ps14; |
5469537b | 7633 | |
0a2869d5 | 7634 | enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); |
5469537b BP |
7635 | if (error) { |
7636 | return error; | |
7637 | } | |
7638 | ||
7639 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7640 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7641 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7642 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7643 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7644 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7645 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7646 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7647 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7648 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7649 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7650 | ops->stats.rx_over_errors = UINT64_MAX; | |
7651 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7652 | ops->stats.collisions = UINT64_MAX; | |
7653 | ||
0a2869d5 BP |
7654 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
7655 | len); | |
6fd6ed71 | 7656 | while (properties.size > 0) { |
5469537b BP |
7657 | struct ofpbuf payload; |
7658 | enum ofperr error; | |
34a543e3 | 7659 | uint64_t type; |
5469537b | 7660 | |
c5562271 | 7661 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
7662 | if (error) { |
7663 | return error; | |
7664 | } | |
7665 | ||
7666 | switch (type) { | |
7667 | case OFPPSPT14_ETHERNET: | |
7668 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7669 | break; | |
7670 | ||
7671 | default: | |
34a543e3 | 7672 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
7673 | break; |
7674 | } | |
7675 | ||
7676 | if (error) { | |
7677 | return error; | |
7678 | } | |
7679 | } | |
7680 | ||
7681 | return 0; | |
be0c30df | 7682 | } |
2e1ae200 | 7683 | |
f8e4867e SH |
7684 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7685 | * message 'oh'. */ | |
7686 | size_t | |
7687 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7688 | { | |
0a2869d5 | 7689 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
f8e4867e | 7690 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
7691 | |
7692 | for (size_t n = 0; ; n++) { | |
7693 | struct ofputil_port_stats ps; | |
7694 | if (ofputil_decode_port_stats(&ps, &b)) { | |
7695 | return n; | |
7696 | } | |
5469537b | 7697 | } |
f8e4867e SH |
7698 | } |
7699 | ||
7700 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7701 | * ofputil_port_stats in 'ps'. | |
7702 | * | |
7703 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7704 | * message. Calling this function multiple times for a single 'msg' iterates | |
7705 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7706 | * null and not modify them between calls. | |
7707 | * | |
7708 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7709 | * otherwise a positive errno value. */ | |
7710 | int | |
7711 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7712 | { | |
7713 | enum ofperr error; | |
7714 | enum ofpraw raw; | |
7715 | ||
6fd6ed71 | 7716 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7717 | : ofpraw_pull(&raw, msg)); |
7718 | if (error) { | |
7719 | return error; | |
7720 | } | |
7721 | ||
6fd6ed71 | 7722 | if (!msg->size) { |
f8e4867e | 7723 | return EOF; |
5469537b BP |
7724 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7725 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7726 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7727 | const struct ofp13_port_stats *ps13; | |
7728 | ||
7729 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7730 | if (!ps13) { | |
7731 | goto bad_len; | |
7732 | } | |
7733 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7734 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7735 | const struct ofp11_port_stats *ps11; | |
7736 | ||
7737 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7738 | if (!ps11) { | |
2e1ae200 | 7739 | goto bad_len; |
f8e4867e SH |
7740 | } |
7741 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7742 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7743 | const struct ofp10_port_stats *ps10; | |
7744 | ||
7745 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7746 | if (!ps10) { | |
2e1ae200 | 7747 | goto bad_len; |
f8e4867e SH |
7748 | } |
7749 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7750 | } else { | |
428b2edd | 7751 | OVS_NOT_REACHED(); |
f8e4867e SH |
7752 | } |
7753 | ||
2e1ae200 | 7754 | bad_len: |
437d0d22 | 7755 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7756 | "bytes at end", msg->size); |
2e1ae200 | 7757 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7758 | } |
7759 | ||
7760 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7761 | * port number and stores the latter in '*ofp10_port'. | |
7762 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7763 | enum ofperr | |
7764 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7765 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7766 | { |
7767 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7768 | case OFP15_VERSION: |
5469537b | 7769 | case OFP14_VERSION: |
2e1ae200 | 7770 | case OFP13_VERSION: |
f8e4867e SH |
7771 | case OFP12_VERSION: |
7772 | case OFP11_VERSION: { | |
7773 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7774 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7775 | } | |
7776 | ||
7777 | case OFP10_VERSION: { | |
7778 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7779 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7780 | return 0; |
7781 | } | |
7782 | ||
7783 | default: | |
428b2edd | 7784 | OVS_NOT_REACHED(); |
f8e4867e SH |
7785 | } |
7786 | } | |
64626975 | 7787 | |
7395c052 NZ |
7788 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7789 | void | |
ca6ba700 | 7790 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7791 | { |
5f03c983 | 7792 | struct ofputil_bucket *bucket; |
7395c052 | 7793 | |
5f03c983 | 7794 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7795 | free(bucket->ofpacts); |
7796 | free(bucket); | |
7797 | } | |
7798 | } | |
7799 | ||
103b4866 SH |
7800 | /* Clones 'bucket' and its ofpacts data */ |
7801 | static struct ofputil_bucket * | |
7802 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7803 | { | |
7804 | struct ofputil_bucket *new; | |
7805 | ||
7806 | new = xmemdup(bucket, sizeof *bucket); | |
7807 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7808 | ||
7809 | return new; | |
7810 | } | |
7811 | ||
7812 | /* Clones each of the buckets in the list 'src' appending them | |
7813 | * in turn to 'dest' which should be an initialised list. | |
7814 | * An exception is that if the pointer value of a bucket in 'src' | |
7815 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7816 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7817 | * be cloned and appended to 'dest'. */ | |
7818 | void | |
ca6ba700 | 7819 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7820 | const struct ofputil_bucket *skip) |
7821 | { | |
7822 | struct ofputil_bucket *bucket; | |
7823 | ||
7824 | LIST_FOR_EACH (bucket, list_node, src) { | |
7825 | struct ofputil_bucket *new_bucket; | |
7826 | ||
7827 | if (bucket == skip) { | |
7828 | continue; | |
7829 | } | |
7830 | ||
7831 | new_bucket = ofputil_bucket_clone_data(bucket); | |
417e7e66 | 7832 | ovs_list_push_back(dest, &new_bucket->list_node); |
103b4866 SH |
7833 | } |
7834 | } | |
7835 | ||
7836 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7837 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7838 | struct ofputil_bucket * | |
ca6ba700 | 7839 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7840 | { |
7841 | struct ofputil_bucket *bucket; | |
7842 | ||
7843 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7844 | return NULL; | |
7845 | } | |
7846 | ||
7847 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7848 | if (bucket->bucket_id == bucket_id) { | |
7849 | return bucket; | |
7850 | } | |
7851 | } | |
7852 | ||
7853 | return NULL; | |
7854 | } | |
7855 | ||
7856 | /* Returns true if more than one bucket in the list 'buckets' | |
7857 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7858 | bool |
ca6ba700 | 7859 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7860 | { |
7861 | struct ofputil_bucket *i, *j; | |
7862 | ||
7863 | LIST_FOR_EACH (i, list_node, buckets) { | |
7864 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7865 | if (i == j) { | |
7866 | break; | |
7867 | } | |
7868 | if (i->bucket_id == j->bucket_id) { | |
7869 | return true; | |
7870 | } | |
7871 | } | |
7872 | } | |
7873 | ||
7874 | return false; | |
7875 | } | |
7876 | ||
103b4866 SH |
7877 | /* Returns the bucket at the front of the list 'buckets'. |
7878 | * Undefined if 'buckets is empty. */ | |
7879 | struct ofputil_bucket * | |
ca6ba700 | 7880 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7881 | { |
7882 | static struct ofputil_bucket *bucket; | |
7883 | ||
417e7e66 | 7884 | ASSIGN_CONTAINER(bucket, ovs_list_front(buckets), list_node); |
103b4866 SH |
7885 | |
7886 | return bucket; | |
7887 | } | |
7888 | ||
7889 | /* Returns the bucket at the back of the list 'buckets'. | |
7890 | * Undefined if 'buckets is empty. */ | |
7891 | struct ofputil_bucket * | |
ca6ba700 | 7892 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7893 | { |
7894 | static struct ofputil_bucket *bucket; | |
7895 | ||
417e7e66 | 7896 | ASSIGN_CONTAINER(bucket, ovs_list_back(buckets), list_node); |
103b4866 SH |
7897 | |
7898 | return bucket; | |
7899 | } | |
7900 | ||
7395c052 NZ |
7901 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7902 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7903 | * for all groups.) | |
7904 | * | |
7905 | * Group statistics include packet and byte counts for each group. */ | |
7906 | struct ofpbuf * | |
7907 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7908 | uint32_t group_id) | |
7909 | { | |
7910 | struct ofpbuf *request; | |
7911 | ||
7912 | switch (ofp_version) { | |
7913 | case OFP10_VERSION: | |
7914 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7915 | "(\'-O OpenFlow11\')"); | |
7916 | case OFP11_VERSION: | |
7917 | case OFP12_VERSION: | |
c37c0382 | 7918 | case OFP13_VERSION: |
42dccab5 BP |
7919 | case OFP14_VERSION: |
7920 | case OFP15_VERSION: { | |
7395c052 NZ |
7921 | struct ofp11_group_stats_request *req; |
7922 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7923 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7924 | req->group_id = htonl(group_id); | |
7925 | break; | |
7926 | } | |
7927 | default: | |
428b2edd | 7928 | OVS_NOT_REACHED(); |
7395c052 NZ |
7929 | } |
7930 | ||
7931 | return request; | |
7932 | } | |
7933 | ||
bc65c25a SH |
7934 | void |
7935 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7936 | { | |
7937 | ofputil_bucket_list_destroy(&gd->buckets); | |
7938 | free(&gd->props.fields); | |
7939 | } | |
7940 | ||
19187a71 BP |
7941 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7942 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7943 | * requested. */ | |
7944 | uint32_t | |
7945 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7946 | { | |
0a2869d5 BP |
7947 | struct ofpbuf request = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
7948 | enum ofpraw raw = ofpraw_pull_assert(&request); | |
19187a71 BP |
7949 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { |
7950 | return OFPG_ALL; | |
7951 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7952 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7953 | return ntohl(*group_id); | |
7954 | } else { | |
7955 | OVS_NOT_REACHED(); | |
7956 | } | |
7957 | } | |
7958 | ||
7395c052 | 7959 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7960 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7961 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7962 | * groups). | |
7395c052 NZ |
7963 | * |
7964 | * Group descriptions include the bucket and action configuration for each | |
7965 | * group. */ | |
7966 | struct ofpbuf * | |
19187a71 BP |
7967 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7968 | uint32_t group_id) | |
7395c052 NZ |
7969 | { |
7970 | struct ofpbuf *request; | |
7971 | ||
7972 | switch (ofp_version) { | |
7973 | case OFP10_VERSION: | |
7974 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7975 | "(\'-O OpenFlow11\')"); | |
7976 | case OFP11_VERSION: | |
7977 | case OFP12_VERSION: | |
c37c0382 AC |
7978 | case OFP13_VERSION: |
7979 | case OFP14_VERSION: | |
19187a71 BP |
7980 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7981 | ofp_version, 0); | |
7982 | break; | |
d4d3f33e MT |
7983 | case OFP15_VERSION:{ |
7984 | struct ofp15_group_desc_request *req; | |
19187a71 BP |
7985 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7986 | ofp_version, 0); | |
d4d3f33e MT |
7987 | req = ofpbuf_put_zeros(request, sizeof *req); |
7988 | req->group_id = htonl(group_id); | |
7395c052 | 7989 | break; |
d4d3f33e | 7990 | } |
7395c052 | 7991 | default: |
428b2edd | 7992 | OVS_NOT_REACHED(); |
7395c052 NZ |
7993 | } |
7994 | ||
7995 | return request; | |
7996 | } | |
7997 | ||
dcbe78ad | 7998 | static void |
63759e71 AZ |
7999 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
8000 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8001 | { |
7395c052 NZ |
8002 | int i; |
8003 | ||
dcbe78ad AZ |
8004 | for (i = 0; i < gs->n_buckets; i++) { |
8005 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
8006 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 8007 | } |
7395c052 NZ |
8008 | } |
8009 | ||
8010 | static void | |
dcbe78ad | 8011 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
8012 | struct ofp11_group_stats *gs11, size_t length, |
8013 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8014 | { |
63759e71 AZ |
8015 | memset(gs11, 0, sizeof *gs11); |
8016 | gs11->length = htons(length); | |
8017 | gs11->group_id = htonl(gs->group_id); | |
8018 | gs11->ref_count = htonl(gs->ref_count); | |
8019 | gs11->packet_count = htonll(gs->packet_count); | |
8020 | gs11->byte_count = htonll(gs->byte_count); | |
8021 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 8022 | } |
7395c052 | 8023 | |
dcbe78ad AZ |
8024 | static void |
8025 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
8026 | struct ofp13_group_stats *gs13, size_t length, |
8027 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 8028 | { |
63759e71 | 8029 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
8030 | gs13->duration_sec = htonl(gs->duration_sec); |
8031 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 8032 | |
7395c052 NZ |
8033 | } |
8034 | ||
dcbe78ad | 8035 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
8036 | * replies already begun in 'replies' and appends it to the list. 'replies' |
8037 | * must have originally been initialized with ofpmp_init(). */ | |
8038 | void | |
ca6ba700 | 8039 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 8040 | const struct ofputil_group_stats *gs) |
7395c052 | 8041 | { |
63759e71 AZ |
8042 | size_t bucket_counter_size; |
8043 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 8044 | size_t length; |
7395c052 | 8045 | |
63759e71 AZ |
8046 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
8047 | ||
e28ac5cf | 8048 | switch (ofpmp_version(replies)) { |
7395c052 | 8049 | case OFP11_VERSION: |
dcbe78ad | 8050 | case OFP12_VERSION:{ |
63759e71 | 8051 | struct ofp11_group_stats *gs11; |
dcbe78ad | 8052 | |
63759e71 AZ |
8053 | length = sizeof *gs11 + bucket_counter_size; |
8054 | gs11 = ofpmp_append(replies, length); | |
8055 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
8056 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
8057 | break; |
8058 | } | |
7395c052 NZ |
8059 | |
8060 | case OFP13_VERSION: | |
42dccab5 BP |
8061 | case OFP14_VERSION: |
8062 | case OFP15_VERSION: { | |
63759e71 | 8063 | struct ofp13_group_stats *gs13; |
7395c052 | 8064 | |
63759e71 AZ |
8065 | length = sizeof *gs13 + bucket_counter_size; |
8066 | gs13 = ofpmp_append(replies, length); | |
8067 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
8068 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
8069 | break; |
8070 | } | |
c37c0382 | 8071 | |
7395c052 NZ |
8072 | case OFP10_VERSION: |
8073 | default: | |
428b2edd | 8074 | OVS_NOT_REACHED(); |
7395c052 NZ |
8075 | } |
8076 | } | |
7395c052 NZ |
8077 | /* Returns an OpenFlow group features request for OpenFlow version |
8078 | * 'ofp_version'. */ | |
8079 | struct ofpbuf * | |
8080 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
8081 | { | |
8082 | struct ofpbuf *request = NULL; | |
8083 | ||
8084 | switch (ofp_version) { | |
8085 | case OFP10_VERSION: | |
8086 | case OFP11_VERSION: | |
8087 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
8088 | "(\'-O OpenFlow12\')"); | |
8089 | case OFP12_VERSION: | |
c37c0382 AC |
8090 | case OFP13_VERSION: |
8091 | case OFP14_VERSION: | |
42dccab5 | 8092 | case OFP15_VERSION: |
7395c052 | 8093 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 8094 | ofp_version, 0); |
7395c052 | 8095 | break; |
7395c052 | 8096 | default: |
428b2edd | 8097 | OVS_NOT_REACHED(); |
7395c052 NZ |
8098 | } |
8099 | ||
8100 | return request; | |
8101 | } | |
8102 | ||
8103 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
8104 | * group features request 'request'. */ | |
8105 | struct ofpbuf * | |
8106 | ofputil_encode_group_features_reply( | |
8107 | const struct ofputil_group_features *features, | |
8108 | const struct ofp_header *request) | |
8109 | { | |
8110 | struct ofp12_group_features_stats *ogf; | |
8111 | struct ofpbuf *reply; | |
08d1e234 | 8112 | int i; |
7395c052 NZ |
8113 | |
8114 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
8115 | request->version, request->xid, 0); | |
8116 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
8117 | ogf->types = htonl(features->types); | |
8118 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
8119 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8120 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
8121 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
8122 | request->version); | |
8123 | } | |
7395c052 NZ |
8124 | |
8125 | return reply; | |
8126 | } | |
8127 | ||
8128 | /* Decodes group features reply 'oh' into 'features'. */ | |
8129 | void | |
8130 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
8131 | struct ofputil_group_features *features) | |
8132 | { | |
8133 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 8134 | int i; |
7395c052 NZ |
8135 | |
8136 | features->types = ntohl(ogf->types); | |
8137 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
8138 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8139 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
8140 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
8141 | ogf->actions[i], oh->version); | |
8142 | } | |
7395c052 NZ |
8143 | } |
8144 | ||
8145 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
8146 | * group ID and stores the latter in '*group_id'. | |
8147 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8148 | enum ofperr | |
8149 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
8150 | uint32_t *group_id) | |
8151 | { | |
8152 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
8153 | *group_id = ntohl(gsr11->group_id); | |
8154 | return 0; | |
8155 | } | |
8156 | ||
8157 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
8158 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
8159 | * caller to eventually free. | |
7395c052 NZ |
8160 | * |
8161 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
8162 | * Calling this function multiple times for a single 'msg' iterates through the | |
8163 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
8164 | * not modify them between calls. | |
8165 | * | |
8166 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8167 | * otherwise a positive errno value. */ | |
8168 | int | |
8169 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
8170 | struct ofputil_group_stats *gs) | |
8171 | { | |
8172 | struct ofp11_bucket_counter *obc; | |
8173 | struct ofp11_group_stats *ogs11; | |
8174 | enum ofpraw raw; | |
8175 | enum ofperr error; | |
8176 | size_t base_len; | |
8177 | size_t length; | |
8178 | size_t i; | |
8179 | ||
646b2a9c | 8180 | gs->bucket_stats = NULL; |
6fd6ed71 | 8181 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
8182 | : ofpraw_pull(&raw, msg)); |
8183 | if (error) { | |
8184 | return error; | |
8185 | } | |
8186 | ||
6fd6ed71 | 8187 | if (!msg->size) { |
7395c052 NZ |
8188 | return EOF; |
8189 | } | |
8190 | ||
8191 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
8192 | base_len = sizeof *ogs11; | |
8193 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
8194 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
8195 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
8196 | struct ofp13_group_stats *ogs13; | |
8197 | ||
8198 | base_len = sizeof *ogs13; | |
8199 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
8200 | if (ogs13) { | |
8201 | ogs11 = &ogs13->gs; | |
8202 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
8203 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
8204 | } else { | |
8205 | ogs11 = NULL; | |
8206 | } | |
8207 | } else { | |
428b2edd | 8208 | OVS_NOT_REACHED(); |
7395c052 NZ |
8209 | } |
8210 | ||
8211 | if (!ogs11) { | |
437d0d22 | 8212 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8213 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8214 | return OFPERR_OFPBRC_BAD_LEN; |
8215 | } | |
8216 | length = ntohs(ogs11->length); | |
8217 | if (length < sizeof base_len) { | |
34582733 | 8218 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
8219 | ofpraw_get_name(raw), length); |
8220 | return OFPERR_OFPBRC_BAD_LEN; | |
8221 | } | |
8222 | ||
8223 | gs->group_id = ntohl(ogs11->group_id); | |
8224 | gs->ref_count = ntohl(ogs11->ref_count); | |
8225 | gs->packet_count = ntohll(ogs11->packet_count); | |
8226 | gs->byte_count = ntohll(ogs11->byte_count); | |
8227 | ||
8228 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
8229 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
8230 | if (!obc) { | |
437d0d22 | 8231 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8232 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8233 | return OFPERR_OFPBRC_BAD_LEN; |
8234 | } | |
8235 | ||
646b2a9c | 8236 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
8237 | for (i = 0; i < gs->n_buckets; i++) { |
8238 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
8239 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
8240 | } | |
8241 | ||
8242 | return 0; | |
8243 | } | |
8244 | ||
5097fee5 SH |
8245 | static void |
8246 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
8247 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8248 | { | |
8249 | struct ofp11_bucket *ob; | |
8250 | size_t start; | |
8251 | ||
6fd6ed71 | 8252 | start = openflow->size; |
5097fee5 SH |
8253 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8254 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
8255 | openflow, ofp_version); | |
8256 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8257 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
8258 | ob->weight = htons(bucket->weight); |
8259 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
8260 | ob->watch_group = htonl(bucket->watch_group); | |
8261 | } | |
8262 | ||
18ac06d3 SH |
8263 | static void |
8264 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
8265 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
8266 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8267 | { | |
8268 | struct ofp15_bucket *ob; | |
8269 | size_t start, actions_start, actions_len; | |
8270 | ||
6fd6ed71 | 8271 | start = openflow->size; |
18ac06d3 SH |
8272 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8273 | ||
6fd6ed71 | 8274 | actions_start = openflow->size; |
18ac06d3 SH |
8275 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
8276 | openflow, ofp_version); | |
6fd6ed71 | 8277 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
8278 | |
8279 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 8280 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
8281 | } |
8282 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
8283 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
8284 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
8285 | } |
8286 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 8287 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
8288 | } |
8289 | ||
8290 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8291 | ob->len = htons(openflow->size - start); |
79870963 | 8292 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
8293 | ob->bucket_id = htonl(bucket_id); |
8294 | } | |
8295 | ||
53eb84a5 SH |
8296 | static void |
8297 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
8298 | const struct ofputil_group_props *gp, | |
8299 | struct ofpbuf *openflow) | |
8300 | { | |
8301 | struct ntr_group_prop_selection_method *prop; | |
8302 | size_t start; | |
8303 | ||
8304 | start = openflow->size; | |
8305 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
8306 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
8307 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
8308 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
8309 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
8310 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
8311 | strcpy(prop->selection_method, gp->selection_method); | |
8312 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 8313 | ofpprop_end(openflow, start); |
53eb84a5 SH |
8314 | } |
8315 | ||
5be50252 SH |
8316 | static void |
8317 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8318 | const struct ovs_list *buckets, |
ca6ba700 | 8319 | struct ovs_list *replies, |
5be50252 | 8320 | enum ofp_version version) |
7395c052 | 8321 | { |
417e7e66 | 8322 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
7395c052 NZ |
8323 | struct ofp11_group_desc_stats *ogds; |
8324 | struct ofputil_bucket *bucket; | |
8325 | size_t start_ogds; | |
8326 | ||
6fd6ed71 | 8327 | start_ogds = reply->size; |
7395c052 NZ |
8328 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8329 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8330 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8331 | } |
8332 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8333 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8334 | ogds->type = gds->type; |
8335 | ogds->group_id = htonl(gds->group_id); | |
8336 | ||
8337 | ofpmp_postappend(replies, start_ogds); | |
8338 | } | |
8339 | ||
18ac06d3 SH |
8340 | static void |
8341 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8342 | const struct ovs_list *buckets, |
ca6ba700 | 8343 | struct ovs_list *replies, |
18ac06d3 SH |
8344 | enum ofp_version version) |
8345 | { | |
417e7e66 | 8346 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
18ac06d3 SH |
8347 | struct ofp15_group_desc_stats *ogds; |
8348 | struct ofputil_bucket *bucket; | |
8349 | size_t start_ogds, start_buckets; | |
8350 | ||
6fd6ed71 | 8351 | start_ogds = reply->size; |
18ac06d3 | 8352 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8353 | start_buckets = reply->size; |
18ac06d3 SH |
8354 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8355 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8356 | gds->type, reply, version); | |
8357 | } | |
8358 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8359 | ogds->type = gds->type; |
8360 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8361 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8362 | |
53eb84a5 SH |
8363 | /* Add group properties */ |
8364 | if (gds->props.selection_method[0]) { | |
8365 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8366 | reply); | |
8367 | } | |
ef5774e3 | 8368 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); |
3986cae6 | 8369 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8370 | |
18ac06d3 SH |
8371 | ofpmp_postappend(replies, start_ogds); |
8372 | } | |
8373 | ||
5be50252 SH |
8374 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8375 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8376 | * initialized with ofpmp_init(). */ | |
8377 | void | |
8378 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8379 | const struct ovs_list *buckets, |
ca6ba700 | 8380 | struct ovs_list *replies) |
5be50252 SH |
8381 | { |
8382 | enum ofp_version version = ofpmp_version(replies); | |
8383 | ||
8384 | switch (version) | |
8385 | { | |
8386 | case OFP11_VERSION: | |
8387 | case OFP12_VERSION: | |
8388 | case OFP13_VERSION: | |
8389 | case OFP14_VERSION: | |
5be50252 SH |
8390 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8391 | break; | |
8392 | ||
18ac06d3 SH |
8393 | case OFP15_VERSION: |
8394 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
8395 | break; | |
8396 | ||
5be50252 SH |
8397 | case OFP10_VERSION: |
8398 | default: | |
8399 | OVS_NOT_REACHED(); | |
8400 | } | |
8401 | } | |
8402 | ||
7395c052 | 8403 | static enum ofperr |
655ed3ae | 8404 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8405 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8406 | { |
8407 | struct ofp11_bucket *ob; | |
18ac06d3 | 8408 | uint32_t bucket_id = 0; |
7395c052 | 8409 | |
417e7e66 | 8410 | ovs_list_init(buckets); |
7395c052 NZ |
8411 | while (buckets_length > 0) { |
8412 | struct ofputil_bucket *bucket; | |
8413 | struct ofpbuf ofpacts; | |
8414 | enum ofperr error; | |
8415 | size_t ob_len; | |
8416 | ||
8417 | ob = (buckets_length >= sizeof *ob | |
8418 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8419 | : NULL); | |
8420 | if (!ob) { | |
34582733 | 8421 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8422 | buckets_length); |
e27e4ce9 | 8423 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8424 | } |
8425 | ||
8426 | ob_len = ntohs(ob->len); | |
8427 | if (ob_len < sizeof *ob) { | |
8428 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8429 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8430 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8431 | } else if (ob_len > buckets_length) { | |
8432 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8433 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8434 | ob_len, buckets_length); |
8435 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8436 | } | |
8437 | buckets_length -= ob_len; | |
8438 | ||
8439 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8440 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8441 | version, &ofpacts); | |
7395c052 NZ |
8442 | if (error) { |
8443 | ofpbuf_uninit(&ofpacts); | |
8444 | ofputil_bucket_list_destroy(buckets); | |
8445 | return error; | |
8446 | } | |
8447 | ||
8448 | bucket = xzalloc(sizeof *bucket); | |
8449 | bucket->weight = ntohs(ob->weight); | |
8450 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8451 | if (error) { | |
8452 | ofpbuf_uninit(&ofpacts); | |
8453 | ofputil_bucket_list_destroy(buckets); | |
8454 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8455 | } | |
8456 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8457 | bucket->bucket_id = bucket_id++; |
8458 | ||
7395c052 | 8459 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8460 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8461 | ovs_list_push_back(buckets, &bucket->list_node); |
7395c052 NZ |
8462 | } |
8463 | ||
8464 | return 0; | |
8465 | } | |
8466 | ||
18ac06d3 SH |
8467 | static enum ofperr |
8468 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8469 | enum ofp_version version, uint8_t group_type, |
8470 | struct ovs_list *buckets) | |
18ac06d3 SH |
8471 | { |
8472 | struct ofp15_bucket *ob; | |
8473 | ||
417e7e66 | 8474 | ovs_list_init(buckets); |
18ac06d3 SH |
8475 | while (buckets_length > 0) { |
8476 | struct ofputil_bucket *bucket = NULL; | |
8477 | struct ofpbuf ofpacts; | |
8478 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
18ac06d3 SH |
8479 | size_t ob_len, actions_len, properties_len; |
8480 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8481 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8482 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8483 | |
8484 | ofpbuf_init(&ofpacts, 0); | |
8485 | ||
8486 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8487 | if (!ob) { | |
8488 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8489 | " leftover bytes", buckets_length); | |
8490 | goto err; | |
8491 | } | |
8492 | ||
8493 | ob_len = ntohs(ob->len); | |
79870963 | 8494 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8495 | |
8496 | if (ob_len < sizeof *ob) { | |
8497 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8498 | "%"PRIuSIZE" is not valid", ob_len); | |
8499 | goto err; | |
8500 | } else if (ob_len > buckets_length) { | |
8501 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8502 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8503 | PRIuSIZE, ob_len, buckets_length); | |
8504 | goto err; | |
8505 | } else if (actions_len > ob_len - sizeof *ob) { | |
8506 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8507 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8508 | "data size %"PRIuSIZE, actions_len, | |
8509 | ob_len - sizeof *ob); | |
8510 | goto err; | |
8511 | } | |
8512 | buckets_length -= ob_len; | |
8513 | ||
8514 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8515 | &ofpacts); | |
8516 | if (err) { | |
8517 | goto err; | |
8518 | } | |
8519 | ||
8520 | properties_len = ob_len - sizeof *ob - actions_len; | |
0a2869d5 BP |
8521 | struct ofpbuf properties = ofpbuf_const_initializer( |
8522 | ofpbuf_pull(msg, properties_len), properties_len); | |
6fd6ed71 | 8523 | while (properties.size > 0) { |
18ac06d3 | 8524 | struct ofpbuf payload; |
34a543e3 | 8525 | uint64_t type; |
18ac06d3 | 8526 | |
c5562271 | 8527 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
8528 | if (err) { |
8529 | goto err; | |
8530 | } | |
8531 | ||
8532 | switch (type) { | |
8533 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 8534 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
8535 | break; |
8536 | ||
8537 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 8538 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
8539 | break; |
8540 | ||
8541 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 8542 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
8543 | break; |
8544 | ||
8545 | default: | |
34a543e3 | 8546 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
8547 | break; |
8548 | } | |
8549 | ||
8550 | if (err) { | |
8551 | goto err; | |
8552 | } | |
8553 | } | |
8554 | ||
8555 | bucket = xzalloc(sizeof *bucket); | |
8556 | ||
8557 | bucket->weight = ntohs(weight); | |
8558 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8559 | if (err) { | |
8560 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8561 | goto err; | |
8562 | } | |
8563 | bucket->watch_group = ntohl(watch_group); | |
8564 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8565 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8566 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8567 | bucket->bucket_id); | |
8568 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8569 | goto err; | |
8570 | } | |
8571 | ||
8572 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8573 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8574 | ovs_list_push_back(buckets, &bucket->list_node); |
18ac06d3 SH |
8575 | |
8576 | continue; | |
8577 | ||
8578 | err: | |
8579 | free(bucket); | |
8580 | ofpbuf_uninit(&ofpacts); | |
8581 | ofputil_bucket_list_destroy(buckets); | |
8582 | return err; | |
8583 | } | |
8584 | ||
8585 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8586 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8587 | ofputil_bucket_list_destroy(buckets); | |
8588 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8589 | } | |
8590 | ||
8591 | return 0; | |
8592 | } | |
8593 | ||
bc65c25a SH |
8594 | static void |
8595 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8596 | { | |
8597 | memset(gp, 0, sizeof *gp); | |
8598 | } | |
8599 | ||
8600 | static enum ofperr | |
8601 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8602 | enum ofp11_group_type group_type, | |
8603 | enum ofp15_group_mod_command group_cmd, | |
8604 | struct ofputil_group_props *gp) | |
8605 | { | |
8606 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8607 | size_t fields_len, method_len; | |
8608 | enum ofperr error; | |
8609 | ||
8610 | switch (group_type) { | |
8611 | case OFPGT11_SELECT: | |
8612 | break; | |
8613 | case OFPGT11_ALL: | |
8614 | case OFPGT11_INDIRECT: | |
8615 | case OFPGT11_FF: | |
c5562271 BP |
8616 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8617 | "only allowed for select groups"); | |
bc65c25a SH |
8618 | return OFPERR_OFPBPC_BAD_VALUE; |
8619 | default: | |
8620 | OVS_NOT_REACHED(); | |
8621 | } | |
8622 | ||
8623 | switch (group_cmd) { | |
8624 | case OFPGC15_ADD: | |
8625 | case OFPGC15_MODIFY: | |
8626 | break; | |
8627 | case OFPGC15_DELETE: | |
8628 | case OFPGC15_INSERT_BUCKET: | |
8629 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
8630 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8631 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
8632 | return OFPERR_OFPBPC_BAD_VALUE; |
8633 | default: | |
8634 | OVS_NOT_REACHED(); | |
8635 | } | |
8636 | ||
8637 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
8638 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
8639 | "length %u is not valid", payload->size); | |
bc65c25a SH |
8640 | return OFPERR_OFPBPC_BAD_LEN; |
8641 | } | |
8642 | ||
8643 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8644 | ||
8645 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
8646 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8647 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
8648 | return OFPERR_OFPBPC_BAD_VALUE; |
8649 | } | |
8650 | ||
0c4b9393 | 8651 | if (strcmp("hash", prop->selection_method)) { |
c5562271 BP |
8652 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8653 | "ntr selection method '%s' is not supported", | |
8654 | prop->selection_method); | |
0c4b9393 SH |
8655 | return OFPERR_OFPBPC_BAD_VALUE; |
8656 | } | |
bc65c25a SH |
8657 | |
8658 | strcpy(gp->selection_method, prop->selection_method); | |
8659 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8660 | ||
8661 | if (!method_len && gp->selection_method_param) { | |
c5562271 BP |
8662 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8663 | "non-zero but selection method is empty"); | |
bc65c25a SH |
8664 | return OFPERR_OFPBPC_BAD_VALUE; |
8665 | } | |
8666 | ||
8667 | ofpbuf_pull(payload, sizeof *prop); | |
8668 | ||
8669 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8670 | if (!method_len && fields_len) { | |
c5562271 BP |
8671 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8672 | "zero but fields are provided"); | |
bc65c25a SH |
8673 | return OFPERR_OFPBPC_BAD_VALUE; |
8674 | } | |
8675 | ||
8676 | error = oxm_pull_field_array(payload->data, fields_len, | |
8677 | &gp->fields); | |
8678 | if (error) { | |
c5562271 BP |
8679 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8680 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
8681 | return error; |
8682 | } | |
8683 | ||
8684 | return 0; | |
8685 | } | |
8686 | ||
bc65c25a SH |
8687 | static enum ofperr |
8688 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8689 | enum ofp11_group_type group_type, | |
8690 | enum ofp15_group_mod_command group_cmd, | |
8691 | struct ofputil_group_props *gp, | |
8692 | size_t properties_len) | |
8693 | { | |
0a2869d5 BP |
8694 | struct ofpbuf properties = ofpbuf_const_initializer( |
8695 | ofpbuf_pull(msg, properties_len), properties_len); | |
bc65c25a SH |
8696 | while (properties.size > 0) { |
8697 | struct ofpbuf payload; | |
8698 | enum ofperr error; | |
34a543e3 | 8699 | uint64_t type; |
bc65c25a | 8700 | |
c5562271 | 8701 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
8702 | if (error) { |
8703 | return error; | |
8704 | } | |
8705 | ||
8706 | switch (type) { | |
34a543e3 BP |
8707 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
8708 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
8709 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
8710 | group_cmd, gp); | |
bc65c25a SH |
8711 | break; |
8712 | ||
8713 | default: | |
34a543e3 | 8714 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
8715 | break; |
8716 | } | |
8717 | ||
8718 | if (error) { | |
8719 | return error; | |
8720 | } | |
8721 | } | |
8722 | ||
8723 | return 0; | |
8724 | } | |
8725 | ||
975910f2 SH |
8726 | static int |
8727 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8728 | struct ofpbuf *msg, | |
8729 | enum ofp_version version) | |
7395c052 NZ |
8730 | { |
8731 | struct ofp11_group_desc_stats *ogds; | |
8732 | size_t length; | |
8733 | ||
6fd6ed71 | 8734 | if (!msg->header) { |
7395c052 NZ |
8735 | ofpraw_pull_assert(msg); |
8736 | } | |
8737 | ||
6fd6ed71 | 8738 | if (!msg->size) { |
7395c052 NZ |
8739 | return EOF; |
8740 | } | |
8741 | ||
8742 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8743 | if (!ogds) { | |
437d0d22 | 8744 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8745 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8746 | return OFPERR_OFPBRC_BAD_LEN; |
8747 | } | |
8748 | gd->type = ogds->type; | |
8749 | gd->group_id = ntohl(ogds->group_id); | |
8750 | ||
8751 | length = ntohs(ogds->length); | |
6fd6ed71 | 8752 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8753 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8754 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8755 | return OFPERR_OFPBRC_BAD_LEN; |
8756 | } | |
8757 | ||
655ed3ae SH |
8758 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8759 | &gd->buckets); | |
7395c052 NZ |
8760 | } |
8761 | ||
18ac06d3 SH |
8762 | static int |
8763 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8764 | struct ofpbuf *msg, | |
8765 | enum ofp_version version) | |
8766 | { | |
8767 | struct ofp15_group_desc_stats *ogds; | |
8768 | uint16_t length, bucket_list_len; | |
bc65c25a | 8769 | int error; |
18ac06d3 | 8770 | |
6fd6ed71 | 8771 | if (!msg->header) { |
18ac06d3 SH |
8772 | ofpraw_pull_assert(msg); |
8773 | } | |
8774 | ||
6fd6ed71 | 8775 | if (!msg->size) { |
18ac06d3 SH |
8776 | return EOF; |
8777 | } | |
8778 | ||
8779 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8780 | if (!ogds) { | |
8781 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8782 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8783 | return OFPERR_OFPBRC_BAD_LEN; |
8784 | } | |
8785 | gd->type = ogds->type; | |
8786 | gd->group_id = ntohl(ogds->group_id); | |
8787 | ||
8788 | length = ntohs(ogds->length); | |
6fd6ed71 | 8789 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8790 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8791 | "length %u", length); | |
8792 | return OFPERR_OFPBRC_BAD_LEN; | |
8793 | } | |
8794 | ||
8795 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8796 | if (length < bucket_list_len + sizeof *ogds) { | |
8797 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8798 | "bucket list length %u", bucket_list_len); | |
8799 | return OFPERR_OFPBRC_BAD_LEN; | |
8800 | } | |
64e8c446 | 8801 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8802 | &gd->buckets); |
8803 | if (error) { | |
8804 | return error; | |
8805 | } | |
18ac06d3 | 8806 | |
bc65c25a SH |
8807 | /* By definition group desc messages don't have a group mod command. |
8808 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8809 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8810 | * against group mod messages with other commands supplying | |
8811 | * a NTR selection method group experimenter property. | |
8812 | * Such properties are valid for group desc replies so | |
8813 | * claim that the group mod command is OFPGC15_ADD to | |
8814 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8815 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8816 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8817 | } |
8818 | ||
975910f2 SH |
8819 | /* Converts a group description reply in 'msg' into an abstract |
8820 | * ofputil_group_desc in 'gd'. | |
8821 | * | |
8822 | * Multiple group description replies can be packed into a single OpenFlow | |
8823 | * message. Calling this function multiple times for a single 'msg' iterates | |
8824 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8825 | * null and not modify them between calls. | |
8826 | * | |
8827 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8828 | * otherwise a positive errno value. */ | |
8829 | int | |
8830 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8831 | struct ofpbuf *msg, enum ofp_version version) | |
8832 | { | |
bc65c25a SH |
8833 | ofputil_init_group_properties(&gd->props); |
8834 | ||
975910f2 SH |
8835 | switch (version) |
8836 | { | |
8837 | case OFP11_VERSION: | |
8838 | case OFP12_VERSION: | |
8839 | case OFP13_VERSION: | |
8840 | case OFP14_VERSION: | |
975910f2 SH |
8841 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8842 | ||
18ac06d3 SH |
8843 | case OFP15_VERSION: |
8844 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8845 | ||
975910f2 SH |
8846 | case OFP10_VERSION: |
8847 | default: | |
8848 | OVS_NOT_REACHED(); | |
8849 | } | |
8850 | } | |
8851 | ||
bc65c25a SH |
8852 | void |
8853 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8854 | { | |
8855 | ofputil_bucket_list_destroy(&gm->buckets); | |
8856 | } | |
8857 | ||
4498bea5 SH |
8858 | static struct ofpbuf * |
8859 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8860 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8861 | { |
8862 | struct ofpbuf *b; | |
8863 | struct ofp11_group_mod *ogm; | |
8864 | size_t start_ogm; | |
7395c052 | 8865 | struct ofputil_bucket *bucket; |
7395c052 | 8866 | |
4498bea5 | 8867 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8868 | start_ogm = b->size; |
4498bea5 SH |
8869 | ofpbuf_put_zeros(b, sizeof *ogm); |
8870 | ||
8871 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8872 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8873 | } | |
8874 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8875 | ogm->command = htons(gm->command); | |
8876 | ogm->type = gm->type; | |
8877 | ogm->group_id = htonl(gm->group_id); | |
8878 | ||
8879 | return b; | |
8880 | } | |
8881 | ||
18ac06d3 SH |
8882 | static struct ofpbuf * |
8883 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8884 | const struct ofputil_group_mod *gm) | |
8885 | { | |
8886 | struct ofpbuf *b; | |
8887 | struct ofp15_group_mod *ogm; | |
8888 | size_t start_ogm; | |
8889 | struct ofputil_bucket *bucket; | |
8890 | struct id_pool *bucket_ids = NULL; | |
8891 | ||
8892 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8893 | start_ogm = b->size; |
18ac06d3 SH |
8894 | ofpbuf_put_zeros(b, sizeof *ogm); |
8895 | ||
8896 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8897 | uint32_t bucket_id; | |
8898 | ||
8899 | /* Generate a bucket id if none was supplied */ | |
8900 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8901 | if (!bucket_ids) { | |
8902 | const struct ofputil_bucket *bkt; | |
8903 | ||
8904 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8905 | ||
8906 | /* Mark all bucket_ids that are present in gm | |
8907 | * as used in the pool. */ | |
8908 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8909 | if (bkt == bucket) { | |
8910 | break; | |
8911 | } | |
8912 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8913 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8914 | } | |
8915 | } | |
8916 | } | |
8917 | ||
8918 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8919 | OVS_NOT_REACHED(); | |
8920 | } | |
8921 | } else { | |
8922 | bucket_id = bucket->bucket_id; | |
8923 | } | |
8924 | ||
8925 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8926 | } | |
8927 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8928 | ogm->command = htons(gm->command); | |
8929 | ogm->type = gm->type; | |
8930 | ogm->group_id = htonl(gm->group_id); | |
8931 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8932 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8933 | |
53eb84a5 SH |
8934 | /* Add group properties */ |
8935 | if (gm->props.selection_method[0]) { | |
8936 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8937 | } | |
8938 | ||
18ac06d3 SH |
8939 | id_pool_destroy(bucket_ids); |
8940 | return b; | |
8941 | } | |
8942 | ||
d4b1d0ca | 8943 | static void |
9dd30b05 BP |
8944 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8945 | { | |
d4b1d0ca SH |
8946 | const char *opt_version; |
8947 | const char *version; | |
8948 | const char *cmd_str; | |
8949 | ||
8950 | switch (cmd) { | |
8951 | case OFPGC15_ADD: | |
8952 | case OFPGC15_MODIFY: | |
8953 | case OFPGC15_DELETE: | |
8954 | version = "1.1"; | |
8955 | opt_version = "11"; | |
8956 | break; | |
8957 | ||
8958 | case OFPGC15_INSERT_BUCKET: | |
8959 | case OFPGC15_REMOVE_BUCKET: | |
8960 | version = "1.5"; | |
8961 | opt_version = "15"; | |
9dd30b05 | 8962 | break; |
d4b1d0ca SH |
8963 | |
8964 | default: | |
8965 | OVS_NOT_REACHED(); | |
8966 | } | |
8967 | ||
8968 | switch (cmd) { | |
8969 | case OFPGC15_ADD: | |
8970 | cmd_str = "add-group"; | |
8971 | break; | |
8972 | ||
8973 | case OFPGC15_MODIFY: | |
8974 | cmd_str = "mod-group"; | |
8975 | break; | |
8976 | ||
8977 | case OFPGC15_DELETE: | |
8978 | cmd_str = "del-group"; | |
8979 | break; | |
8980 | ||
8981 | case OFPGC15_INSERT_BUCKET: | |
8982 | cmd_str = "insert-bucket"; | |
8983 | break; | |
8984 | ||
8985 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8986 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8987 | break; |
8988 | ||
8989 | default: | |
8990 | OVS_NOT_REACHED(); | |
8991 | } | |
8992 | ||
8993 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8994 | cmd_str, version, opt_version); | |
8995 | ||
8996 | } | |
8997 | ||
4498bea5 SH |
8998 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8999 | * 'ofp_version' and returns the message. */ | |
9000 | struct ofpbuf * | |
9001 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
9002 | const struct ofputil_group_mod *gm) | |
9003 | { | |
d4b1d0ca | 9004 | |
7395c052 | 9005 | switch (ofp_version) { |
d4b1d0ca SH |
9006 | case OFP10_VERSION: |
9007 | bad_group_cmd(gm->command); | |
7395c052 NZ |
9008 | |
9009 | case OFP11_VERSION: | |
9010 | case OFP12_VERSION: | |
c37c0382 AC |
9011 | case OFP13_VERSION: |
9012 | case OFP14_VERSION: | |
d4b1d0ca SH |
9013 | if (gm->command > OFPGC11_DELETE) { |
9014 | bad_group_cmd(gm->command); | |
9015 | } | |
4498bea5 | 9016 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 9017 | |
18ac06d3 SH |
9018 | case OFP15_VERSION: |
9019 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
9020 | ||
7395c052 | 9021 | default: |
428b2edd | 9022 | OVS_NOT_REACHED(); |
7395c052 | 9023 | } |
7395c052 NZ |
9024 | } |
9025 | ||
aead63f2 SH |
9026 | static enum ofperr |
9027 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9028 | struct ofputil_group_mod *gm) | |
9029 | { | |
9030 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 9031 | enum ofperr error; |
aead63f2 SH |
9032 | |
9033 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9034 | gm->command = ntohs(ogm->command); | |
9035 | gm->type = ogm->type; | |
9036 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 9037 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 9038 | |
6fd6ed71 | 9039 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
9040 | &gm->buckets); |
9041 | ||
9042 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
9043 | if (!error | |
9044 | && ofp_version >= OFP13_VERSION | |
9045 | && gm->command == OFPGC11_DELETE | |
417e7e66 | 9046 | && !ovs_list_is_empty(&gm->buckets)) { |
08ba0810 BP |
9047 | error = OFPERR_OFPGMFC_INVALID_GROUP; |
9048 | } | |
9049 | ||
9050 | return error; | |
aead63f2 SH |
9051 | } |
9052 | ||
18ac06d3 SH |
9053 | static enum ofperr |
9054 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9055 | struct ofputil_group_mod *gm) | |
9056 | { | |
9057 | const struct ofp15_group_mod *ogm; | |
9058 | uint16_t bucket_list_len; | |
9059 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
9060 | ||
9061 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9062 | gm->command = ntohs(ogm->command); | |
9063 | gm->type = ogm->type; | |
9064 | gm->group_id = ntohl(ogm->group_id); | |
9065 | ||
9066 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
9067 | switch (gm->command) { | |
9068 | case OFPGC15_REMOVE_BUCKET: | |
9069 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9070 | error = 0; | |
9071 | } | |
9072 | /* Fall through */ | |
9073 | case OFPGC15_INSERT_BUCKET: | |
9074 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
9075 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
9076 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
9077 | error = 0; | |
9078 | } | |
9079 | break; | |
9080 | ||
9081 | case OFPGC11_ADD: | |
9082 | case OFPGC11_MODIFY: | |
9083 | case OFPGC11_DELETE: | |
9084 | default: | |
9085 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9086 | error = 0; | |
9087 | } | |
9088 | break; | |
9089 | } | |
9090 | if (error) { | |
9091 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
9092 | "group command bucket id (%u) is out of range", | |
9093 | gm->command_bucket_id); | |
9094 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9095 | } | |
9096 | ||
79870963 | 9097 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 9098 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 9099 | gm->type, &gm->buckets); |
bc65c25a SH |
9100 | if (error) { |
9101 | return error; | |
18ac06d3 SH |
9102 | } |
9103 | ||
bc65c25a SH |
9104 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
9105 | msg->size); | |
18ac06d3 SH |
9106 | } |
9107 | ||
7395c052 NZ |
9108 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
9109 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
9110 | enum ofperr | |
9111 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
9112 | struct ofputil_group_mod *gm) | |
9113 | { | |
0a2869d5 | 9114 | ofputil_init_group_properties(&gm->props); |
7395c052 | 9115 | |
0a2869d5 BP |
9116 | enum ofp_version ofp_version = oh->version; |
9117 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
7395c052 NZ |
9118 | ofpraw_pull_assert(&msg); |
9119 | ||
0a2869d5 | 9120 | enum ofperr err; |
aead63f2 SH |
9121 | switch (ofp_version) |
9122 | { | |
9123 | case OFP11_VERSION: | |
9124 | case OFP12_VERSION: | |
9125 | case OFP13_VERSION: | |
9126 | case OFP14_VERSION: | |
aead63f2 SH |
9127 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
9128 | break; | |
9129 | ||
18ac06d3 SH |
9130 | case OFP15_VERSION: |
9131 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
9132 | break; | |
9133 | ||
aead63f2 SH |
9134 | case OFP10_VERSION: |
9135 | default: | |
9136 | OVS_NOT_REACHED(); | |
9137 | } | |
e57681e5 SH |
9138 | if (err) { |
9139 | return err; | |
9140 | } | |
9141 | ||
e1799eb7 SH |
9142 | switch (gm->type) { |
9143 | case OFPGT11_INDIRECT: | |
beaa2b87 LS |
9144 | if (gm->command != OFPGC11_DELETE |
9145 | && !ovs_list_is_singleton(&gm->buckets) ) { | |
290eada7 | 9146 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
9147 | } |
9148 | break; | |
9149 | case OFPGT11_ALL: | |
9150 | case OFPGT11_SELECT: | |
9151 | case OFPGT11_FF: | |
9152 | break; | |
9153 | default: | |
09d4b951 | 9154 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
9155 | } |
9156 | ||
9157 | switch (gm->command) { | |
9158 | case OFPGC11_ADD: | |
9159 | case OFPGC11_MODIFY: | |
9160 | case OFPGC11_DELETE: | |
9161 | case OFPGC15_INSERT_BUCKET: | |
9162 | break; | |
9163 | case OFPGC15_REMOVE_BUCKET: | |
417e7e66 | 9164 | if (!ovs_list_is_empty(&gm->buckets)) { |
65075b99 SH |
9165 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9166 | } | |
9167 | break; | |
9168 | default: | |
09d4b951 | 9169 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
9170 | } |
9171 | ||
0a2869d5 | 9172 | struct ofputil_bucket *bucket; |
e57681e5 | 9173 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
9174 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
9175 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9176 | } | |
9177 | ||
e57681e5 SH |
9178 | switch (gm->type) { |
9179 | case OFPGT11_ALL: | |
9180 | case OFPGT11_INDIRECT: | |
9181 | if (ofputil_bucket_has_liveness(bucket)) { | |
9182 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
9183 | } | |
9184 | break; | |
9185 | case OFPGT11_SELECT: | |
9186 | break; | |
9187 | case OFPGT11_FF: | |
9188 | if (!ofputil_bucket_has_liveness(bucket)) { | |
9189 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9190 | } | |
9191 | break; | |
9192 | default: | |
896313f3 FL |
9193 | /* Returning BAD TYPE to be consistent |
9194 | * though gm->type has been checked already. */ | |
9195 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
9196 | } |
9197 | } | |
9198 | ||
9199 | return 0; | |
7395c052 NZ |
9200 | } |
9201 | ||
64626975 SH |
9202 | /* Parse a queue status request message into 'oqsr'. |
9203 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
9204 | enum ofperr | |
9205 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
9206 | struct ofputil_queue_stats_request *oqsr) | |
9207 | { | |
9208 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 9209 | case OFP15_VERSION: |
c37c0382 | 9210 | case OFP14_VERSION: |
2e1ae200 | 9211 | case OFP13_VERSION: |
64626975 SH |
9212 | case OFP12_VERSION: |
9213 | case OFP11_VERSION: { | |
9214 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
9215 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
9216 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
9217 | } | |
9218 | ||
9219 | case OFP10_VERSION: { | |
7f05e7ab JR |
9220 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
9221 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 9222 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
9223 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
9224 | if (oqsr->port_no == OFPP_ALL) { | |
9225 | oqsr->port_no = OFPP_ANY; | |
9226 | } | |
64626975 SH |
9227 | return 0; |
9228 | } | |
9229 | ||
9230 | default: | |
428b2edd | 9231 | OVS_NOT_REACHED(); |
64626975 SH |
9232 | } |
9233 | } | |
9234 | ||
0746a84f BP |
9235 | /* Encode a queue stats request for 'oqsr', the encoded message |
9236 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9237 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9238 | struct ofpbuf * |
9239 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9240 | const struct ofputil_queue_stats_request *oqsr) | |
9241 | { | |
9242 | struct ofpbuf *request; | |
9243 | ||
9244 | switch (ofp_version) { | |
9245 | case OFP11_VERSION: | |
2e1ae200 | 9246 | case OFP12_VERSION: |
c37c0382 | 9247 | case OFP13_VERSION: |
42dccab5 BP |
9248 | case OFP14_VERSION: |
9249 | case OFP15_VERSION: { | |
64626975 SH |
9250 | struct ofp11_queue_stats_request *req; |
9251 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9252 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9253 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9254 | req->queue_id = htonl(oqsr->queue_id); | |
9255 | break; | |
9256 | } | |
9257 | case OFP10_VERSION: { | |
9258 | struct ofp10_queue_stats_request *req; | |
9259 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9260 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9261 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9262 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9263 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9264 | req->queue_id = htonl(oqsr->queue_id); |
9265 | break; | |
9266 | } | |
9267 | default: | |
428b2edd | 9268 | OVS_NOT_REACHED(); |
64626975 SH |
9269 | } |
9270 | ||
9271 | return request; | |
9272 | } | |
9273 | ||
9274 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9275 | * message 'oh'. */ | |
9276 | size_t | |
9277 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9278 | { | |
0a2869d5 | 9279 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
64626975 | 9280 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
9281 | |
9282 | for (size_t n = 0; ; n++) { | |
9283 | struct ofputil_queue_stats qs; | |
9284 | if (ofputil_decode_queue_stats(&qs, &b)) { | |
9285 | return n; | |
9286 | } | |
1bb2cdbe | 9287 | } |
64626975 SH |
9288 | } |
9289 | ||
9290 | static enum ofperr | |
9291 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9292 | const struct ofp10_queue_stats *qs10) | |
9293 | { | |
4e022ec0 | 9294 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9295 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9296 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9297 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9298 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9299 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9300 | |
9301 | return 0; | |
9302 | } | |
9303 | ||
9304 | static enum ofperr | |
9305 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9306 | const struct ofp11_queue_stats *qs11) | |
9307 | { | |
9308 | enum ofperr error; | |
9309 | ||
9310 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9311 | if (error) { | |
9312 | return error; | |
9313 | } | |
9314 | ||
9315 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9316 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9317 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9318 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9319 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9320 | |
9321 | return 0; | |
9322 | } | |
9323 | ||
2e1ae200 JR |
9324 | static enum ofperr |
9325 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9326 | const struct ofp13_queue_stats *qs13) | |
9327 | { | |
6dc34a0d | 9328 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9329 | if (!error) { |
6dc34a0d BP |
9330 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9331 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9332 | } |
9333 | ||
9334 | return error; | |
9335 | } | |
9336 | ||
1bb2cdbe BP |
9337 | static enum ofperr |
9338 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9339 | struct ofpbuf *msg) | |
9340 | { | |
9341 | const struct ofp14_queue_stats *qs14; | |
9342 | size_t len; | |
9343 | ||
9344 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9345 | if (!qs14) { | |
9346 | return OFPERR_OFPBRC_BAD_LEN; | |
9347 | } | |
9348 | ||
9349 | len = ntohs(qs14->length); | |
6fd6ed71 | 9350 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9351 | return OFPERR_OFPBRC_BAD_LEN; |
9352 | } | |
9353 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9354 | ||
9355 | /* No properties yet defined, so ignore them for now. */ | |
9356 | ||
9357 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9358 | } | |
9359 | ||
64626975 SH |
9360 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9361 | * ofputil_queue_stats in 'qs'. | |
9362 | * | |
9363 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9364 | * message. Calling this function multiple times for a single 'msg' iterates | |
9365 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9366 | * null and not modify them between calls. | |
9367 | * | |
9368 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9369 | * otherwise a positive errno value. */ | |
9370 | int | |
9371 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9372 | { | |
9373 | enum ofperr error; | |
9374 | enum ofpraw raw; | |
9375 | ||
6fd6ed71 | 9376 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9377 | : ofpraw_pull(&raw, msg)); |
9378 | if (error) { | |
9379 | return error; | |
9380 | } | |
9381 | ||
6fd6ed71 | 9382 | if (!msg->size) { |
64626975 | 9383 | return EOF; |
1bb2cdbe BP |
9384 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9385 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9386 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9387 | const struct ofp13_queue_stats *qs13; | |
9388 | ||
9389 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9390 | if (!qs13) { | |
9391 | goto bad_len; | |
9392 | } | |
9393 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9394 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9395 | const struct ofp11_queue_stats *qs11; | |
9396 | ||
9397 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9398 | if (!qs11) { | |
2e1ae200 | 9399 | goto bad_len; |
64626975 SH |
9400 | } |
9401 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9402 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9403 | const struct ofp10_queue_stats *qs10; | |
9404 | ||
9405 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9406 | if (!qs10) { | |
2e1ae200 | 9407 | goto bad_len; |
64626975 SH |
9408 | } |
9409 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9410 | } else { | |
428b2edd | 9411 | OVS_NOT_REACHED(); |
64626975 | 9412 | } |
2e1ae200 JR |
9413 | |
9414 | bad_len: | |
437d0d22 | 9415 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9416 | "bytes at end", msg->size); |
2e1ae200 | 9417 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9418 | } |
9419 | ||
9420 | static void | |
9421 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9422 | struct ofp10_queue_stats *qs10) | |
9423 | { | |
4e022ec0 | 9424 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9425 | memset(qs10->pad, 0, sizeof qs10->pad); |
9426 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9427 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9428 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9429 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9430 | } |
9431 | ||
9432 | static void | |
9433 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9434 | struct ofp11_queue_stats *qs11) | |
9435 | { | |
9436 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9437 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9438 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9439 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9440 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9441 | } |
9442 | ||
2e1ae200 JR |
9443 | static void |
9444 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9445 | struct ofp13_queue_stats *qs13) | |
9446 | { | |
9447 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9448 | if (oqs->duration_sec != UINT32_MAX) { |
9449 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9450 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9451 | } else { | |
b8266395 BP |
9452 | qs13->duration_sec = OVS_BE32_MAX; |
9453 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9454 | } |
2e1ae200 JR |
9455 | } |
9456 | ||
1bb2cdbe BP |
9457 | static void |
9458 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9459 | struct ofp14_queue_stats *qs14) | |
9460 | { | |
9461 | qs14->length = htons(sizeof *qs14); | |
9462 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9463 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9464 | } | |
9465 | ||
9466 | ||
64626975 SH |
9467 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9468 | void | |
ca6ba700 | 9469 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9470 | const struct ofputil_queue_stats *oqs) |
9471 | { | |
e28ac5cf | 9472 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9473 | case OFP13_VERSION: { |
9474 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9475 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9476 | break; | |
9477 | } | |
9478 | ||
64626975 SH |
9479 | case OFP12_VERSION: |
9480 | case OFP11_VERSION: { | |
2e1ae200 | 9481 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9482 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9483 | break; | |
9484 | } | |
9485 | ||
9486 | case OFP10_VERSION: { | |
2e1ae200 | 9487 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9488 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9489 | break; | |
9490 | } | |
9491 | ||
42dccab5 BP |
9492 | case OFP14_VERSION: |
9493 | case OFP15_VERSION: { | |
1bb2cdbe BP |
9494 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9495 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9496 | break; |
1bb2cdbe | 9497 | } |
c37c0382 | 9498 | |
64626975 | 9499 | default: |
428b2edd | 9500 | OVS_NOT_REACHED(); |
64626975 SH |
9501 | } |
9502 | } | |
777af88d AC |
9503 | |
9504 | enum ofperr | |
9505 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9506 | struct ofputil_bundle_ctrl_msg *msg) | |
9507 | { | |
0a2869d5 BP |
9508 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
9509 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
9510 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL |
9511 | || raw == OFPRAW_ONFT13_BUNDLE_CONTROL); | |
777af88d | 9512 | |
0a2869d5 | 9513 | const struct ofp14_bundle_ctrl_msg *m = b.msg; |
777af88d AC |
9514 | msg->bundle_id = ntohl(m->bundle_id); |
9515 | msg->type = ntohs(m->type); | |
9516 | msg->flags = ntohs(m->flags); | |
9517 | ||
9518 | return 0; | |
9519 | } | |
9520 | ||
db5076ee JR |
9521 | struct ofpbuf * |
9522 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9523 | struct ofputil_bundle_ctrl_msg *bc) | |
9524 | { | |
9525 | struct ofpbuf *request; | |
9526 | struct ofp14_bundle_ctrl_msg *m; | |
9527 | ||
9528 | switch (ofp_version) { | |
9529 | case OFP10_VERSION: | |
9530 | case OFP11_VERSION: | |
9531 | case OFP12_VERSION: | |
06d4d4b6 | 9532 | ovs_fatal(0, "bundles need OpenFlow 1.3 or later " |
db5076ee | 9533 | "(\'-O OpenFlow14\')"); |
06d4d4b6 | 9534 | case OFP13_VERSION: |
db5076ee JR |
9535 | case OFP14_VERSION: |
9536 | case OFP15_VERSION: | |
06d4d4b6 JR |
9537 | request = ofpraw_alloc(ofp_version == OFP13_VERSION |
9538 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9539 | : OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
db5076ee JR |
9540 | m = ofpbuf_put_zeros(request, sizeof *m); |
9541 | ||
9542 | m->bundle_id = htonl(bc->bundle_id); | |
9543 | m->type = htons(bc->type); | |
9544 | m->flags = htons(bc->flags); | |
9545 | break; | |
9546 | default: | |
9547 | OVS_NOT_REACHED(); | |
9548 | } | |
9549 | ||
9550 | return request; | |
9551 | } | |
9552 | ||
777af88d AC |
9553 | struct ofpbuf * |
9554 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9555 | struct ofputil_bundle_ctrl_msg *msg) | |
9556 | { | |
9557 | struct ofpbuf *buf; | |
9558 | struct ofp14_bundle_ctrl_msg *m; | |
9559 | ||
06d4d4b6 JR |
9560 | buf = ofpraw_alloc_reply(oh->version == OFP13_VERSION |
9561 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9562 | : OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
777af88d AC |
9563 | m = ofpbuf_put_zeros(buf, sizeof *m); |
9564 | ||
9565 | m->bundle_id = htonl(msg->bundle_id); | |
9566 | m->type = htons(msg->type); | |
9567 | m->flags = htons(msg->flags); | |
9568 | ||
9569 | return buf; | |
9570 | } | |
9571 | ||
c25ce22d JR |
9572 | /* Return true for bundlable state change requests, false for other messages. |
9573 | */ | |
9574 | static bool | |
9575 | ofputil_is_bundlable(enum ofptype type) | |
9576 | { | |
9577 | switch (type) { | |
9578 | /* Minimum required by OpenFlow 1.4. */ | |
9579 | case OFPTYPE_PORT_MOD: | |
9580 | case OFPTYPE_FLOW_MOD: | |
9581 | return true; | |
9582 | ||
9583 | /* Nice to have later. */ | |
9584 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9585 | case OFPTYPE_GROUP_MOD: | |
9586 | case OFPTYPE_TABLE_MOD: | |
9587 | case OFPTYPE_METER_MOD: | |
9588 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9589 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9590 | |
9591 | /* Not to be bundlable. */ | |
9592 | case OFPTYPE_ECHO_REQUEST: | |
9593 | case OFPTYPE_FEATURES_REQUEST: | |
9594 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9595 | case OFPTYPE_SET_CONFIG: | |
9596 | case OFPTYPE_BARRIER_REQUEST: | |
9597 | case OFPTYPE_ROLE_REQUEST: | |
9598 | case OFPTYPE_ECHO_REPLY: | |
9599 | case OFPTYPE_SET_FLOW_FORMAT: | |
9600 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9601 | case OFPTYPE_SET_CONTROLLER_ID: | |
9602 | case OFPTYPE_FLOW_AGE: | |
9603 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9604 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9605 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9606 | case OFPTYPE_DESC_STATS_REQUEST: | |
9607 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9608 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9609 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9610 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9611 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9612 | case OFPTYPE_PORT_STATS_REQUEST: |
9613 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9614 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9615 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9616 | case OFPTYPE_METER_STATS_REQUEST: | |
9617 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9618 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9619 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9620 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9621 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9622 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9623 | case OFPTYPE_BUNDLE_CONTROL: | |
9624 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9625 | case OFPTYPE_HELLO: | |
9626 | case OFPTYPE_ERROR: | |
9627 | case OFPTYPE_FEATURES_REPLY: | |
9628 | case OFPTYPE_GET_CONFIG_REPLY: | |
9629 | case OFPTYPE_PACKET_IN: | |
9630 | case OFPTYPE_FLOW_REMOVED: | |
9631 | case OFPTYPE_PORT_STATUS: | |
9632 | case OFPTYPE_BARRIER_REPLY: | |
9633 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9634 | case OFPTYPE_DESC_STATS_REPLY: | |
9635 | case OFPTYPE_FLOW_STATS_REPLY: | |
9636 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9637 | case OFPTYPE_PORT_STATS_REPLY: | |
9638 | case OFPTYPE_TABLE_STATS_REPLY: | |
9639 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9640 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9641 | case OFPTYPE_ROLE_REPLY: | |
9642 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9643 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9644 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9645 | case OFPTYPE_GET_ASYNC_REPLY: | |
9646 | case OFPTYPE_GROUP_STATS_REPLY: | |
9647 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9648 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9649 | case OFPTYPE_METER_STATS_REPLY: | |
9650 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9651 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9652 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9653 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9654 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9655 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 9656 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 ML |
9657 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9658 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
77ab5fd2 | 9659 | case OFPTYPE_NXT_RESUME: |
c25ce22d JR |
9660 | break; |
9661 | } | |
9662 | ||
9663 | return false; | |
9664 | } | |
9665 | ||
777af88d AC |
9666 | enum ofperr |
9667 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 | 9668 | struct ofputil_bundle_add_msg *msg, |
0a2869d5 | 9669 | enum ofptype *typep) |
777af88d | 9670 | { |
0a2869d5 BP |
9671 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
9672 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
9673 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE |
9674 | || raw == OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE); | |
777af88d | 9675 | |
0a2869d5 | 9676 | const struct ofp14_bundle_ctrl_msg *m = ofpbuf_pull(&b, sizeof *m); |
777af88d AC |
9677 | msg->bundle_id = ntohl(m->bundle_id); |
9678 | msg->flags = ntohs(m->flags); | |
9679 | ||
6fd6ed71 | 9680 | msg->msg = b.data; |
46be7132 BP |
9681 | if (msg->msg->version != oh->version) { |
9682 | return OFPERR_NXBFC_BAD_VERSION; | |
9683 | } | |
0a2869d5 | 9684 | size_t inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9685 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9686 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9687 | } | |
be6f6393 JR |
9688 | if (msg->msg->xid != oh->xid) { |
9689 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9690 | } | |
777af88d | 9691 | |
c25ce22d | 9692 | /* Reject unbundlable messages. */ |
0a2869d5 BP |
9693 | enum ofptype type; |
9694 | enum ofperr error = ofptype_decode(&type, msg->msg); | |
c25ce22d JR |
9695 | if (error) { |
9696 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9697 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9698 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9699 | } | |
9700 | ||
0a2869d5 | 9701 | if (!ofputil_is_bundlable(type)) { |
44648b0f | 9702 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
0a2869d5 | 9703 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type)); |
c25ce22d JR |
9704 | return OFPERR_OFPBFC_MSG_UNSUP; |
9705 | } | |
0a2869d5 BP |
9706 | if (typep) { |
9707 | *typep = type; | |
9708 | } | |
c25ce22d | 9709 | |
777af88d AC |
9710 | return 0; |
9711 | } | |
9712 | ||
9713 | struct ofpbuf * | |
9714 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9715 | struct ofputil_bundle_add_msg *msg) | |
9716 | { | |
9717 | struct ofpbuf *request; | |
9718 | struct ofp14_bundle_ctrl_msg *m; | |
9719 | ||
7b3dca89 | 9720 | /* Must use the same xid as the embedded message. */ |
06d4d4b6 JR |
9721 | request = ofpraw_alloc_xid(ofp_version == OFP13_VERSION |
9722 | ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE | |
9723 | : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
7b3dca89 | 9724 | msg->msg->xid, 0); |
777af88d AC |
9725 | m = ofpbuf_put_zeros(request, sizeof *m); |
9726 | ||
9727 | m->bundle_id = htonl(msg->bundle_id); | |
9728 | m->flags = htons(msg->flags); | |
9729 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9730 | ||
9731 | return request; | |
9732 | } | |
6159c531 JG |
9733 | |
9734 | static void | |
4e548ad9 | 9735 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9736 | { |
4e548ad9 | 9737 | struct ofputil_tlv_map *map; |
6159c531 JG |
9738 | |
9739 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9740 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9741 | |
9742 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9743 | nx_map->option_class = htons(map->option_class); | |
9744 | nx_map->option_type = map->option_type; | |
9745 | nx_map->option_len = map->option_len; | |
9746 | nx_map->index = htons(map->index); | |
9747 | } | |
9748 | } | |
9749 | ||
9750 | struct ofpbuf * | |
4e548ad9 ML |
9751 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9752 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9753 | { |
9754 | struct ofpbuf *b; | |
4e548ad9 | 9755 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9756 | |
4e548ad9 ML |
9757 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9758 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9759 | nx_ttm->command = htons(ttm->command); | |
9760 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9761 | |
9762 | return b; | |
9763 | } | |
9764 | ||
9765 | static enum ofperr | |
4e548ad9 | 9766 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9767 | struct ovs_list *mappings) |
6159c531 | 9768 | { |
417e7e66 | 9769 | ovs_list_init(mappings); |
6159c531 JG |
9770 | |
9771 | while (msg->size) { | |
4e548ad9 ML |
9772 | struct nx_tlv_map *nx_map; |
9773 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9774 | |
9775 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9776 | map = xmalloc(sizeof *map); | |
417e7e66 | 9777 | ovs_list_push_back(mappings, &map->list_node); |
6159c531 JG |
9778 | |
9779 | map->option_class = ntohs(nx_map->option_class); | |
9780 | map->option_type = nx_map->option_type; | |
9781 | ||
9782 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9783 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9784 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9785 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9786 | map->option_len); |
4e548ad9 ML |
9787 | ofputil_uninit_tlv_table(mappings); |
9788 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9789 | } |
9790 | ||
9791 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9792 | if (map->index >= max_fields) { |
6159c531 | 9793 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9794 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9795 | map->index, max_fields - 1); |
4e548ad9 ML |
9796 | ofputil_uninit_tlv_table(mappings); |
9797 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9798 | } |
9799 | } | |
9800 | ||
9801 | return 0; | |
9802 | } | |
9803 | ||
9804 | enum ofperr | |
4e548ad9 ML |
9805 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9806 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 | 9807 | { |
0a2869d5 | 9808 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
9809 | ofpraw_pull_assert(&msg); |
9810 | ||
0a2869d5 | 9811 | struct nx_tlv_table_mod *nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
4e548ad9 ML |
9812 | ttm->command = ntohs(nx_ttm->command); |
9813 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9814 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9815 | "tlv table mod command (%u) is out of range", |
9816 | ttm->command); | |
9817 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9818 | } |
9819 | ||
4e548ad9 ML |
9820 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9821 | &ttm->mappings); | |
6159c531 JG |
9822 | } |
9823 | ||
9824 | struct ofpbuf * | |
4e548ad9 ML |
9825 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9826 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9827 | { |
9828 | struct ofpbuf *b; | |
4e548ad9 | 9829 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9830 | |
4e548ad9 ML |
9831 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9832 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9833 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9834 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9835 | |
4e548ad9 | 9836 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9837 | |
9838 | return b; | |
9839 | } | |
9840 | ||
4e548ad9 | 9841 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9842 | * if successful, otherwise an ofperr. |
9843 | * | |
4e548ad9 ML |
9844 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9845 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9846 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9847 | enum ofperr |
4e548ad9 ML |
9848 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9849 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 | 9850 | { |
0a2869d5 | 9851 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
9852 | ofpraw_pull_assert(&msg); |
9853 | ||
0a2869d5 | 9854 | struct nx_tlv_table_reply *nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
4e548ad9 ML |
9855 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); |
9856 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9857 | |
4e548ad9 | 9858 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9859 | } |
9860 | ||
9861 | void | |
4e548ad9 | 9862 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9863 | { |
4e548ad9 | 9864 | struct ofputil_tlv_map *map; |
6159c531 JG |
9865 | |
9866 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9867 | free(map); | |
9868 | } | |
9869 | } | |
98090482 | 9870 | |
2da7974c BP |
9871 | const char * |
9872 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
9873 | { | |
9874 | switch (type) { | |
9875 | case OAM_PACKET_IN: return "PACKET_IN"; | |
9876 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
9877 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
9878 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
9879 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
9880 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
9881 | ||
9882 | case OAM_N_TYPES: | |
9883 | default: | |
9884 | OVS_NOT_REACHED(); | |
9885 | } | |
9886 | } | |
9887 | ||
8fd0bb60 BP |
9888 | struct ofp14_async_prop { |
9889 | uint64_t prop_type; | |
9890 | enum ofputil_async_msg_type oam; | |
9891 | bool master; | |
9892 | uint32_t allowed10, allowed14; | |
9893 | }; | |
9894 | ||
9895 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
9896 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
9897 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
9898 | ||
9899 | static const struct ofp14_async_prop async_props[] = { | |
9900 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
9901 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
9902 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
9903 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
9904 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
9905 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
9906 | }; | |
9907 | ||
9908 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
9909 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
9910 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
9911 | ||
9912 | static const struct ofp14_async_prop * | |
9913 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
9914 | { | |
9915 | FOR_EACH_ASYNC_PROP (ap) { | |
9916 | if (prop_type == ap->prop_type) { | |
9917 | return ap; | |
9918 | } | |
9919 | } | |
9920 | return NULL; | |
9921 | } | |
9922 | ||
9923 | static const struct ofp14_async_prop * | |
9924 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
9925 | bool master) | |
9926 | { | |
9927 | FOR_EACH_ASYNC_PROP (ap) { | |
9928 | if (ap->oam == oam && ap->master == master) { | |
9929 | return ap; | |
9930 | } | |
9931 | } | |
9932 | return NULL; | |
9933 | } | |
9934 | ||
9935 | static uint32_t | |
9936 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
9937 | enum ofp_version version) | |
9938 | { | |
9939 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
9940 | } | |
9941 | ||
9942 | static ovs_be32 | |
9943 | encode_async_mask(const struct ofputil_async_cfg *src, | |
9944 | const struct ofp14_async_prop *ap, | |
9945 | enum ofp_version version) | |
9946 | { | |
9947 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
9948 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
9949 | } | |
9950 | ||
9951 | static enum ofperr | |
9952 | decode_async_mask(ovs_be32 src, | |
9953 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
9954 | bool loose, struct ofputil_async_cfg *dst) | |
9955 | { | |
9956 | uint32_t mask = ntohl(src); | |
9957 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
9958 | if (mask & ~allowed) { | |
9959 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
9960 | "bad value %#x for %s (allowed mask %#x)", | |
9961 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
9962 | allowed); | |
9963 | mask &= allowed; | |
9964 | if (!loose) { | |
9965 | return OFPERR_OFPACFC_INVALID; | |
9966 | } | |
9967 | } | |
9968 | ||
9bfe9334 BP |
9969 | if (ap->oam == OAM_PACKET_IN) { |
9970 | if (mask & (1u << OFPR_NO_MATCH)) { | |
9971 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
9972 | if (version < OFP13_VERSION) { | |
9973 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
9974 | } | |
9975 | } | |
9976 | } | |
9977 | ||
8fd0bb60 BP |
9978 | uint32_t *array = ap->master ? dst->master : dst->slave; |
9979 | array[ap->oam] = mask; | |
9980 | return 0; | |
9981 | } | |
9982 | ||
9983 | static enum ofperr | |
9984 | parse_async_tlv(const struct ofpbuf *property, | |
9985 | const struct ofp14_async_prop *ap, | |
9986 | struct ofputil_async_cfg *ac, | |
9987 | enum ofp_version version, bool loose) | |
9988 | { | |
9989 | enum ofperr error; | |
9990 | ovs_be32 mask; | |
9991 | ||
9992 | error = ofpprop_parse_be32(property, &mask); | |
9993 | if (error) { | |
9994 | return error; | |
9995 | } | |
9996 | ||
9997 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
9998 | /* For experimenter properties, whether a property is for the master or | |
9999 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
10000 | * ofp_prop_experimenter. Check that these are consistent. */ | |
10001 | const struct ofp_prop_experimenter *ope = property->data; | |
10002 | bool should_be_master = ope->type == htons(0xffff); | |
10003 | if (should_be_master != ap->master) { | |
10004 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
10005 | "indicates %s role but exp_type %"PRIu32" indicates " | |
10006 | "%s role", | |
10007 | ntohs(ope->type), | |
10008 | should_be_master ? "master" : "slave", | |
10009 | ntohl(ope->exp_type), | |
10010 | ap->master ? "master" : "slave"); | |
10011 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
10012 | } | |
10013 | } | |
10014 | ||
10015 | return decode_async_mask(mask, ap, version, loose, ac); | |
10016 | } | |
10017 | ||
10018 | static void | |
10019 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
10020 | enum ofputil_async_msg_type oam, | |
10021 | enum ofp_version version, | |
10022 | struct ofputil_async_cfg *dst) | |
10023 | { | |
10024 | for (int i = 0; i < 2; i++) { | |
10025 | bool master = i == 0; | |
10026 | const struct ofp14_async_prop *ap | |
10027 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10028 | decode_async_mask(masks[i], ap, version, true, dst); | |
10029 | } | |
10030 | } | |
10031 | ||
98090482 | 10032 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 10033 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 10034 | * |
5876b4db BP |
10035 | * Some versions of the "set async config" request change only some of the |
10036 | * settings and leave the others alone. This function uses 'basis' as the | |
10037 | * initial state for decoding these. Other versions of the request change all | |
10038 | * the settings; this function ignores 'basis' when decoding these. | |
10039 | * | |
98090482 NR |
10040 | * If 'loose' is true, this function ignores properties and values that it does |
10041 | * not understand, as a controller would want to do when interpreting | |
10042 | * capabilities provided by a switch. If 'loose' is false, this function | |
10043 | * treats unknown properties and values as an error, as a switch would want to | |
10044 | * do when interpreting a configuration request made by a controller. | |
10045 | * | |
d18cc1ee AA |
10046 | * Returns 0 if successful, otherwise an OFPERR_* value. |
10047 | * | |
10048 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
10049 | * the valid range of mask. | |
10050 | * | |
10051 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
10052 | * supported.*/ | |
98090482 | 10053 | enum ofperr |
a930d4c5 | 10054 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 10055 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 10056 | struct ofputil_async_cfg *ac) |
98090482 | 10057 | { |
0a2869d5 BP |
10058 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10059 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
98090482 NR |
10060 | |
10061 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
10062 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
10063 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
10064 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
10065 | ||
5876b4db | 10066 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
10067 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
10068 | oh->version, ac); | |
10069 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
10070 | oh->version, ac); | |
10071 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
10072 | oh->version, ac); | |
98090482 | 10073 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
10074 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
10075 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 10076 | *ac = *basis; |
98090482 | 10077 | while (b.size > 0) { |
98090482 NR |
10078 | struct ofpbuf property; |
10079 | enum ofperr error; | |
34a543e3 | 10080 | uint64_t type; |
98090482 | 10081 | |
34a543e3 | 10082 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
10083 | if (error) { |
10084 | return error; | |
10085 | } | |
10086 | ||
8fd0bb60 BP |
10087 | const struct ofp14_async_prop *ap |
10088 | = get_ofp14_async_config_prop_by_prop_type(type); | |
10089 | error = (ap | |
10090 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
10091 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 10092 | if (error) { |
8fd0bb60 BP |
10093 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
10094 | * knows why, it's OpenFlow. */ | |
10095 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
10096 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 10097 | } |
98090482 NR |
10098 | return error; |
10099 | } | |
10100 | } | |
10101 | } else { | |
10102 | return OFPERR_OFPBRC_BAD_VERSION; | |
10103 | } | |
10104 | return 0; | |
10105 | } | |
10106 | ||
8fd0bb60 BP |
10107 | static void |
10108 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
10109 | enum ofputil_async_msg_type oam, | |
10110 | enum ofp_version version, | |
10111 | ovs_be32 masks[2]) | |
98090482 | 10112 | { |
8fd0bb60 BP |
10113 | for (int i = 0; i < 2; i++) { |
10114 | bool master = i == 0; | |
10115 | const struct ofp14_async_prop *ap | |
10116 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10117 | masks[i] = encode_async_mask(ac, ap, version); | |
10118 | } | |
10119 | } | |
98090482 | 10120 | |
8fd0bb60 BP |
10121 | static void |
10122 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
10123 | struct ofpbuf *buf, bool tlv, | |
10124 | enum ofp_version version, uint32_t oams) | |
10125 | { | |
10126 | if (!tlv) { | |
10127 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
10128 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
10129 | msg->packet_in_mask); | |
10130 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
10131 | msg->port_status_mask); | |
10132 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
10133 | msg->flow_removed_mask); | |
10134 | } else { | |
10135 | FOR_EACH_ASYNC_PROP (ap) { | |
10136 | if (oams & (1u << ap->oam)) { | |
10137 | size_t ofs = buf->size; | |
10138 | ofpprop_put_be32(buf, ap->prop_type, | |
10139 | encode_async_mask(ac, ap, version)); | |
10140 | ||
10141 | /* For experimenter properties, we need to use type 0xfffe for | |
10142 | * master and 0xffff for slaves. */ | |
10143 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10144 | struct ofp_prop_experimenter *ope | |
10145 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
10146 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
10147 | } | |
10148 | } | |
98090482 | 10149 | } |
98090482 | 10150 | } |
98090482 NR |
10151 | } |
10152 | ||
8fd0bb60 BP |
10153 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
10154 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 10155 | struct ofpbuf * |
af7bc161 BP |
10156 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
10157 | const struct ofputil_async_cfg *ac) | |
98090482 NR |
10158 | { |
10159 | struct ofpbuf *buf; | |
98090482 | 10160 | |
8fd0bb60 BP |
10161 | enum ofpraw raw = (oh->version < OFP14_VERSION |
10162 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
10163 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
10164 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
10165 | ofputil_put_async_config__(ac, reply, | |
10166 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
10167 | oh->version, UINT32_MAX); | |
10168 | return reply; | |
98090482 NR |
10169 | |
10170 | return buf; | |
10171 | } | |
a930d4c5 | 10172 | |
af7bc161 BP |
10173 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
10174 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
10175 | * | |
10176 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
10177 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
10178 | * messages, so more messages than requested may be configured. OF1.0 through | |
10179 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
10180 | * any extensions then this function encodes an Open vSwitch extension message | |
10181 | * that does support configuring OVS extension OAM_*. */ | |
10182 | struct ofpbuf * | |
10183 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
10184 | uint32_t oams, enum ofp_version ofp_version) | |
10185 | { | |
10186 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
10187 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
10188 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
10189 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
10190 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
10191 | ofputil_put_async_config__(ac, request, | |
10192 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
10193 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
10194 | ofp_version, oams); | |
10195 | return request; | |
10196 | } | |
10197 | ||
a930d4c5 BP |
10198 | struct ofputil_async_cfg |
10199 | ofputil_async_cfg_default(enum ofp_version version) | |
10200 | { | |
9bfe9334 BP |
10201 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
10202 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
10203 | * introduced in OF1.0, breaking it into more specific categories. When we | |
10204 | * encode these for earlier OpenFlow versions, we translate them into | |
10205 | * OFPR_ACTION. */ | |
10206 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
10207 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
10208 | if (version <= OFP12_VERSION) { | |
10209 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
10210 | } | |
10211 | ||
a930d4c5 | 10212 | return (struct ofputil_async_cfg) { |
9bfe9334 | 10213 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
10214 | |
10215 | .master[OAM_FLOW_REMOVED] | |
10216 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
10217 | ||
10218 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
10219 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
10220 | }; | |
10221 | } | |
6c6eedc5 SJ |
10222 | |
10223 | static void | |
10224 | ofputil_put_ofp14_table_desc(const struct ofputil_table_desc *td, | |
10225 | struct ofpbuf *b, enum ofp_version version) | |
10226 | { | |
10227 | struct ofp14_table_desc *otd; | |
10228 | struct ofp14_table_mod_prop_vacancy *otv; | |
10229 | size_t start_otd; | |
10230 | ||
10231 | start_otd = b->size; | |
10232 | ofpbuf_put_zeros(b, sizeof *otd); | |
10233 | ||
10234 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, td->eviction_flags); | |
10235 | ||
10236 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
10237 | otv->type = htons(OFPTMPT14_VACANCY); | |
10238 | otv->length = htons(sizeof *otv); | |
10239 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
10240 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
10241 | otv->vacancy = td->table_vacancy.vacancy; | |
10242 | ||
10243 | otd = ofpbuf_at_assert(b, start_otd, sizeof *otd); | |
10244 | otd->length = htons(b->size - start_otd); | |
10245 | otd->table_id = td->table_id; | |
10246 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
10247 | td->eviction, td->vacancy, | |
10248 | version); | |
10249 | } | |
10250 | ||
10251 | /* Converts the abstract form of a "table status" message in '*ts' into an | |
10252 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
10253 | * a buffer owned by the caller. */ | |
10254 | struct ofpbuf * | |
10255 | ofputil_encode_table_status(const struct ofputil_table_status *ts, | |
10256 | enum ofputil_protocol protocol) | |
10257 | { | |
10258 | enum ofp_version version; | |
10259 | struct ofpbuf *b; | |
10260 | ||
10261 | version = ofputil_protocol_to_ofp_version(protocol); | |
10262 | if (version >= OFP14_VERSION) { | |
10263 | enum ofpraw raw; | |
10264 | struct ofp14_table_status *ots; | |
10265 | ||
10266 | raw = OFPRAW_OFPT14_TABLE_STATUS; | |
10267 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
10268 | ots = ofpbuf_put_zeros(b, sizeof *ots); | |
10269 | ots->reason = ts->reason; | |
10270 | ofputil_put_ofp14_table_desc(&ts->desc, b, version); | |
10271 | ofpmsg_update_length(b); | |
10272 | return b; | |
10273 | } else { | |
10274 | return NULL; | |
10275 | } | |
10276 | } | |
10277 | ||
10278 | /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form | |
10279 | * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
10280 | enum ofperr | |
10281 | ofputil_decode_table_status(const struct ofp_header *oh, | |
10282 | struct ofputil_table_status *ts) | |
10283 | { | |
10284 | const struct ofp14_table_status *ots; | |
10285 | struct ofpbuf b; | |
10286 | enum ofperr error; | |
10287 | enum ofpraw raw; | |
10288 | ||
10289 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
10290 | raw = ofpraw_pull_assert(&b); | |
10291 | ots = ofpbuf_pull(&b, sizeof *ots); | |
10292 | ||
10293 | if (raw == OFPRAW_OFPT14_TABLE_STATUS) { | |
10294 | if (ots->reason != OFPTR_VACANCY_DOWN | |
10295 | && ots->reason != OFPTR_VACANCY_UP) { | |
10296 | return OFPERR_OFPBPC_BAD_VALUE; | |
10297 | } | |
10298 | ts->reason = ots->reason; | |
10299 | ||
10300 | error = ofputil_decode_table_desc(&b, &ts->desc, oh->version); | |
10301 | return error; | |
10302 | } else { | |
10303 | return OFPERR_OFPBRC_BAD_VERSION; | |
10304 | } | |
10305 | ||
10306 | return 0; | |
10307 | } |