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fa37b408 | 1 | /* |
6a5490c6 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. |
fa37b408 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include "ofp-print.h" | |
03e1125c | 19 | #include <ctype.h> |
dc4762ed | 20 | #include <errno.h> |
fa37b408 | 21 | #include <inttypes.h> |
6ca00f6f ETN |
22 | #include <sys/types.h> |
23 | #include <netinet/in.h> | |
b459a924 | 24 | #include <netinet/icmp6.h> |
fa37b408 | 25 | #include <stdlib.h> |
daff3353 | 26 | #include "bundle.h" |
10a24935 | 27 | #include "byte-order.h" |
d8ae4d67 | 28 | #include "classifier.h" |
dc4762ed | 29 | #include "dynamic-string.h" |
75a75043 | 30 | #include "learn.h" |
816fd533 | 31 | #include "meta-flow.h" |
9e1fd49b | 32 | #include "multipath.h" |
6c038611 | 33 | #include "netdev.h" |
b6c9e612 | 34 | #include "nx-match.h" |
18ac06d3 | 35 | #include "id-pool.h" |
f25d0cf3 | 36 | #include "ofp-actions.h" |
dc4762ed | 37 | #include "ofp-errors.h" |
982697a4 | 38 | #include "ofp-msgs.h" |
fa37b408 BP |
39 | #include "ofp-util.h" |
40 | #include "ofpbuf.h" | |
bc65c25a | 41 | #include "openflow/netronome-ext.h" |
fa37b408 BP |
42 | #include "packets.h" |
43 | #include "random.h" | |
6159c531 | 44 | #include "tun-metadata.h" |
4ffd1b43 | 45 | #include "unaligned.h" |
e41a9130 | 46 | #include "type-props.h" |
e6211adc | 47 | #include "openvswitch/vlog.h" |
5deff5aa | 48 | #include "bitmap.h" |
fa37b408 | 49 | |
d98e6007 | 50 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
51 | |
52 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
53 | * in the peer and so there's not much point in showing a lot of them. */ | |
54 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
55 | ||
de7d3c07 SJ |
56 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
57 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
58 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
59 | ovs_be32 config, enum ofp_version); | |
60 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
61 | enum ofputil_table_eviction, | |
de7d3c07 | 62 | enum ofputil_table_vacancy, |
82c22d34 | 63 | enum ofp_version); |
3c1bb396 | 64 | |
9a4eddbb BP |
65 | struct ofp_prop_header { |
66 | ovs_be16 type; | |
67 | ovs_be16 len; | |
68 | }; | |
69 | ||
bc65c25a SH |
70 | struct ofp_prop_experimenter { |
71 | ovs_be16 type; /* OFP*_EXPERIMENTER. */ | |
72 | ovs_be16 length; /* Length in bytes of this property. */ | |
73 | ovs_be32 experimenter; /* Experimenter ID which takes the same form as | |
74 | * in struct ofp_experimenter_header. */ | |
75 | ovs_be32 exp_type; /* Experimenter defined. */ | |
76 | }; | |
77 | ||
9a4eddbb BP |
78 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
79 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
80 | * nonnull, the entire property, including the header, in '*property'. Returns | |
72b25867 BP |
81 | * 0 if successful, otherwise an error code. |
82 | * | |
83 | * This function pulls the property's stated size padded out to a multiple of | |
84 | * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so | |
85 | * you can use ofputil_pull_property() for that case. */ | |
9a4eddbb | 86 | static enum ofperr |
72b25867 BP |
87 | ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property, |
88 | unsigned int alignment, uint16_t *typep) | |
9a4eddbb BP |
89 | { |
90 | struct ofp_prop_header *oph; | |
72b25867 | 91 | unsigned int padded_len; |
9a4eddbb BP |
92 | unsigned int len; |
93 | ||
6fd6ed71 | 94 | if (msg->size < sizeof *oph) { |
9a4eddbb BP |
95 | return OFPERR_OFPBPC_BAD_LEN; |
96 | } | |
97 | ||
6fd6ed71 | 98 | oph = msg->data; |
9a4eddbb | 99 | len = ntohs(oph->len); |
72b25867 | 100 | padded_len = ROUND_UP(len, alignment); |
6fd6ed71 | 101 | if (len < sizeof *oph || padded_len > msg->size) { |
9a4eddbb BP |
102 | return OFPERR_OFPBPC_BAD_LEN; |
103 | } | |
104 | ||
105 | *typep = ntohs(oph->type); | |
106 | if (property) { | |
6fd6ed71 | 107 | ofpbuf_use_const(property, msg->data, len); |
9a4eddbb | 108 | } |
72b25867 | 109 | ofpbuf_pull(msg, padded_len); |
9a4eddbb BP |
110 | return 0; |
111 | } | |
112 | ||
72b25867 BP |
113 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
114 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
115 | * nonnull, the entire property, including the header, in '*property'. Returns | |
116 | * 0 if successful, otherwise an error code. | |
117 | * | |
118 | * This function pulls the property's stated size padded out to a multiple of | |
119 | * 8 bytes, which is the common case for OpenFlow properties. */ | |
120 | static enum ofperr | |
121 | ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property, | |
122 | uint16_t *typep) | |
123 | { | |
124 | return ofputil_pull_property__(msg, property, 8, typep); | |
125 | } | |
126 | ||
cab50449 | 127 | static void OVS_PRINTF_FORMAT(2, 3) |
9a4eddbb BP |
128 | log_property(bool loose, const char *message, ...) |
129 | { | |
130 | enum vlog_level level = loose ? VLL_DBG : VLL_WARN; | |
131 | if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) { | |
132 | va_list args; | |
133 | ||
134 | va_start(args, message); | |
135 | vlog_valist(THIS_MODULE, level, message, args); | |
136 | va_end(args); | |
137 | } | |
138 | } | |
8c3cc785 | 139 | |
d18cc1ee AA |
140 | static enum ofperr |
141 | ofputil_check_mask(uint16_t type, uint32_t mask) | |
142 | { | |
143 | switch (type) { | |
144 | case OFPACPT_PACKET_IN_SLAVE: | |
145 | case OFPACPT_PACKET_IN_MASTER: | |
146 | if (mask > MAXIMUM_MASK_PACKET_IN) { | |
147 | return OFPERR_OFPACFC_INVALID; | |
148 | } | |
149 | break; | |
150 | ||
151 | case OFPACPT_FLOW_REMOVED_SLAVE: | |
152 | case OFPACPT_FLOW_REMOVED_MASTER: | |
153 | if (mask > MAXIMUM_MASK_FLOW_REMOVED) { | |
154 | return OFPERR_OFPACFC_INVALID; | |
155 | } | |
156 | break; | |
157 | ||
158 | case OFPACPT_PORT_STATUS_SLAVE: | |
159 | case OFPACPT_PORT_STATUS_MASTER: | |
160 | if (mask > MAXIMUM_MASK_PORT_STATUS) { | |
161 | return OFPERR_OFPACFC_INVALID; | |
162 | } | |
163 | break; | |
164 | ||
165 | case OFPACPT_ROLE_STATUS_SLAVE: | |
166 | case OFPACPT_ROLE_STATUS_MASTER: | |
167 | if (mask > MAXIMUM_MASK_ROLE_STATUS) { | |
168 | return OFPERR_OFPACFC_INVALID; | |
169 | } | |
170 | break; | |
171 | ||
172 | case OFPACPT_TABLE_STATUS_SLAVE: | |
173 | case OFPACPT_TABLE_STATUS_MASTER: | |
174 | if ((mask < MINIMUM_MASK_TABLE_STATUS && mask != 0) | | |
175 | (mask > MAXIMUM_MASK_TABLE_STATUS)) { | |
176 | return OFPERR_OFPACFC_INVALID; | |
177 | } | |
178 | break; | |
179 | ||
180 | case OFPACPT_REQUESTFORWARD_SLAVE: | |
181 | case OFPACPT_REQUESTFORWARD_MASTER: | |
182 | if (mask > MAXIMUM_MASK_REQUESTFORWARD) { | |
183 | return OFPERR_OFPACFC_INVALID; | |
184 | } | |
185 | break; | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
3c4e10fb BP |
190 | static size_t |
191 | start_property(struct ofpbuf *msg, uint16_t type) | |
192 | { | |
6fd6ed71 | 193 | size_t start_ofs = msg->size; |
3c4e10fb BP |
194 | struct ofp_prop_header *oph; |
195 | ||
196 | oph = ofpbuf_put_uninit(msg, sizeof *oph); | |
197 | oph->type = htons(type); | |
198 | oph->len = htons(4); /* May be updated later by end_property(). */ | |
199 | return start_ofs; | |
200 | } | |
201 | ||
202 | static void | |
203 | end_property(struct ofpbuf *msg, size_t start_ofs) | |
204 | { | |
205 | struct ofp_prop_header *oph; | |
206 | ||
207 | oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph); | |
6fd6ed71 PS |
208 | oph->len = htons(msg->size - start_ofs); |
209 | ofpbuf_padto(msg, ROUND_UP(msg->size, 8)); | |
3c4e10fb BP |
210 | } |
211 | ||
3646d9ad BP |
212 | /* Appends a property to 'msg' whose type is 'type' and whose contents is a |
213 | * series of property headers, one for each 1-bit in 'bitmap'. */ | |
3c4e10fb | 214 | static void |
3646d9ad | 215 | put_bitmap_property(struct ofpbuf *msg, uint16_t type, uint64_t bitmap) |
3c4e10fb | 216 | { |
3646d9ad BP |
217 | size_t start_ofs = start_property(msg, type); |
218 | ||
3c4e10fb BP |
219 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { |
220 | start_property(msg, rightmost_1bit_idx(bitmap)); | |
221 | } | |
3646d9ad | 222 | end_property(msg, start_ofs); |
3c4e10fb BP |
223 | } |
224 | ||
0596e897 BP |
225 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
226 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
227 | * is wildcarded. | |
228 | * | |
229 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
230 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
231 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
232 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
233 | * wildcarded. */ | |
234 | ovs_be32 | |
235 | ofputil_wcbits_to_netmask(int wcbits) | |
236 | { | |
237 | wcbits &= 0x3f; | |
238 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
239 | } | |
240 | ||
241 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
242 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
243 | * between 0 and 32 inclusive. | |
244 | * | |
245 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
246 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
247 | int |
248 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
249 | { | |
aad29cd1 | 250 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
251 | } |
252 | ||
eec25dc1 | 253 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 254 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
255 | * responsibility to handle the special case where the flow match's dl_vlan is |
256 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 257 | void |
eec25dc1 | 258 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 259 | { |
ffe4c74f | 260 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 261 | |
81a76618 | 262 | /* Initialize most of wc. */ |
f9ba8dad | 263 | flow_wildcards_init_catchall(wc); |
bad68a99 | 264 | |
0bdc4bec | 265 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 266 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 267 | } |
5d9499c4 BP |
268 | |
269 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 270 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 271 | } |
7257b535 | 272 | |
851d3105 | 273 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 274 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 275 | } |
26720e24 BP |
276 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
277 | >> OFPFW10_NW_SRC_SHIFT); | |
278 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
279 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 280 | |
eec25dc1 | 281 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 282 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 283 | } |
eec25dc1 | 284 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 285 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
286 | } |
287 | ||
eec25dc1 | 288 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 289 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 290 | } |
eec25dc1 | 291 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 292 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 293 | } |
e2170cff | 294 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 295 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 296 | } |
d8ae4d67 | 297 | |
eb6f28db | 298 | /* VLAN TCI mask. */ |
eec25dc1 | 299 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 300 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 301 | } |
eec25dc1 | 302 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 303 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
304 | } |
305 | } | |
306 | ||
81a76618 | 307 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 308 | void |
81a76618 BP |
309 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
310 | struct match *match) | |
311 | { | |
312 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
313 | ||
314 | /* Initialize match->wc. */ | |
296e07ac | 315 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
316 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
317 | ||
318 | /* Initialize most of match->flow. */ | |
319 | match->flow.nw_src = ofmatch->nw_src; | |
320 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 321 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
322 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
323 | match->flow.tp_src = ofmatch->tp_src; | |
324 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
325 | match->flow.dl_src = ofmatch->dl_src; |
326 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
327 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
328 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 329 | |
66642cb4 | 330 | /* Translate VLANs. */ |
0c436519 | 331 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 332 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
333 | /* Match only packets without 802.1Q header. |
334 | * | |
eec25dc1 | 335 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 336 | * |
eec25dc1 | 337 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
338 | * because we can't have a specific PCP without an 802.1Q header. |
339 | * However, older versions of OVS treated this as matching packets | |
340 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
341 | match->flow.vlan_tci = htons(0); |
342 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
343 | } else { |
344 | ovs_be16 vid, pcp, tci; | |
bf062576 | 345 | uint16_t hpcp; |
47271d0d | 346 | |
81a76618 | 347 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
348 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
349 | pcp = htons(hpcp); | |
47271d0d | 350 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 351 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
352 | } |
353 | ||
d8ae4d67 | 354 | /* Clean up. */ |
81a76618 | 355 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
356 | } |
357 | ||
81a76618 | 358 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 359 | void |
81a76618 BP |
360 | ofputil_match_to_ofp10_match(const struct match *match, |
361 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 362 | { |
81a76618 | 363 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 364 | uint32_t ofpfw; |
d8ae4d67 | 365 | |
66642cb4 | 366 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 367 | ofpfw = 0; |
4e022ec0 | 368 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
369 | ofpfw |= OFPFW10_IN_PORT; |
370 | } | |
26720e24 | 371 | if (!wc->masks.dl_type) { |
27cafc5f BP |
372 | ofpfw |= OFPFW10_DL_TYPE; |
373 | } | |
26720e24 | 374 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
375 | ofpfw |= OFPFW10_NW_PROTO; |
376 | } | |
26720e24 | 377 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 378 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 379 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 380 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 381 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 382 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 383 | } |
26720e24 | 384 | if (!wc->masks.tp_src) { |
eec25dc1 | 385 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 386 | } |
26720e24 | 387 | if (!wc->masks.tp_dst) { |
eec25dc1 | 388 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 389 | } |
26720e24 | 390 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 391 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 392 | } |
26720e24 | 393 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 394 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 395 | } |
ff9d3826 | 396 | |
66642cb4 | 397 | /* Translate VLANs. */ |
81a76618 BP |
398 | ofmatch->dl_vlan = htons(0); |
399 | ofmatch->dl_vlan_pcp = 0; | |
400 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 401 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
402 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
403 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
404 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 405 | } else { |
81a76618 | 406 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 407 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 408 | } else { |
81a76618 | 409 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
410 | } |
411 | ||
81a76618 | 412 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 413 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 414 | } else { |
81a76618 | 415 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
416 | } |
417 | } | |
418 | ||
419 | /* Compose most of the match structure. */ | |
81a76618 | 420 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 421 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
422 | ofmatch->dl_src = match->flow.dl_src; |
423 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
424 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
425 | ofmatch->nw_src = match->flow.nw_src; | |
426 | ofmatch->nw_dst = match->flow.nw_dst; | |
427 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
428 | ofmatch->nw_proto = match->flow.nw_proto; | |
429 | ofmatch->tp_src = match->flow.tp_src; | |
430 | ofmatch->tp_dst = match->flow.tp_dst; | |
431 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
432 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
433 | } |
434 | ||
aa319503 | 435 | enum ofperr |
81a76618 BP |
436 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
437 | uint16_t *padded_match_len) | |
aa319503 | 438 | { |
6fd6ed71 | 439 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 440 | uint16_t match_len; |
aa319503 | 441 | |
6fd6ed71 | 442 | if (buf->size < sizeof *omh) { |
aa319503 BP |
443 | return OFPERR_OFPBMC_BAD_LEN; |
444 | } | |
445 | ||
36a16881 SH |
446 | match_len = ntohs(omh->length); |
447 | ||
aa319503 | 448 | switch (ntohs(omh->type)) { |
36a16881 SH |
449 | case OFPMT_STANDARD: { |
450 | struct ofp11_match *om; | |
451 | ||
6fd6ed71 | 452 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
453 | return OFPERR_OFPBMC_BAD_LEN; |
454 | } | |
455 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
456 | if (padded_match_len) { |
457 | *padded_match_len = match_len; | |
458 | } | |
81a76618 | 459 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
460 | } |
461 | ||
462 | case OFPMT_OXM: | |
463 | if (padded_match_len) { | |
464 | *padded_match_len = ROUND_UP(match_len, 8); | |
465 | } | |
81a76618 | 466 | return oxm_pull_match(buf, match); |
aa319503 BP |
467 | |
468 | default: | |
469 | return OFPERR_OFPBMC_BAD_TYPE; | |
470 | } | |
471 | } | |
472 | ||
3f0f48cf YT |
473 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
474 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 475 | enum ofperr |
81a76618 BP |
476 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
477 | struct match *match) | |
410698cf | 478 | { |
81a76618 | 479 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 480 | bool ipv4, arp, rarp; |
410698cf | 481 | |
81a76618 | 482 | match_init_catchall(match); |
410698cf BP |
483 | |
484 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 485 | ofp_port_t ofp_port; |
410698cf BP |
486 | enum ofperr error; |
487 | ||
81a76618 | 488 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
489 | if (error) { |
490 | return OFPERR_OFPBMC_BAD_VALUE; | |
491 | } | |
81a76618 | 492 | match_set_in_port(match, ofp_port); |
410698cf BP |
493 | } |
494 | ||
74ff3298 JR |
495 | match_set_dl_src_masked(match, ofmatch->dl_src, |
496 | eth_addr_invert(ofmatch->dl_src_mask)); | |
497 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
498 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
499 | |
500 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 501 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 502 | /* Match only packets without a VLAN tag. */ |
81a76618 | 503 | match->flow.vlan_tci = htons(0); |
b8266395 | 504 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 505 | } else { |
81a76618 | 506 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 507 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
508 | match->flow.vlan_tci = htons(VLAN_CFI); |
509 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
510 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 511 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
512 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
513 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
514 | } else { |
515 | /* Invalid VID. */ | |
516 | return OFPERR_OFPBMC_BAD_VALUE; | |
517 | } | |
518 | ||
519 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
520 | if (ofmatch->dl_vlan_pcp <= 7) { |
521 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
522 | << VLAN_PCP_SHIFT); | |
523 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
524 | } else { |
525 | /* Invalid PCP. */ | |
526 | return OFPERR_OFPBMC_BAD_VALUE; | |
527 | } | |
528 | } | |
529 | } | |
530 | } | |
531 | ||
532 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
533 | match_set_dl_type(match, |
534 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
535 | } |
536 | ||
81a76618 BP |
537 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
538 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 539 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
540 | |
541 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 542 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
543 | /* Invalid TOS. */ |
544 | return OFPERR_OFPBMC_BAD_VALUE; | |
545 | } | |
546 | ||
81a76618 | 547 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
548 | } |
549 | ||
8087f5ff | 550 | if (ipv4 || arp || rarp) { |
410698cf | 551 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 552 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 553 | } |
81a76618 BP |
554 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
555 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
556 | } |
557 | ||
558 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
559 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 560 | switch (match->flow.nw_proto) { |
410698cf BP |
561 | case IPPROTO_ICMP: |
562 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
563 | * | |
564 | * The tp_src and tp_dst fields will be ignored unless the | |
565 | * network protocol specified is as TCP, UDP or SCTP. | |
566 | * | |
567 | * but I'm pretty sure we should support ICMP too, otherwise | |
568 | * that's a regression from OF1.0. */ | |
569 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 570 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 571 | if (icmp_type < 0x100) { |
81a76618 | 572 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
573 | } else { |
574 | return OFPERR_OFPBMC_BAD_FIELD; | |
575 | } | |
576 | } | |
577 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 578 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 579 | if (icmp_code < 0x100) { |
81a76618 | 580 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
581 | } else { |
582 | return OFPERR_OFPBMC_BAD_FIELD; | |
583 | } | |
584 | } | |
585 | break; | |
586 | ||
587 | case IPPROTO_TCP: | |
588 | case IPPROTO_UDP: | |
0d56eaf2 | 589 | case IPPROTO_SCTP: |
410698cf | 590 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 591 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
592 | } |
593 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 594 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
595 | } |
596 | break; | |
597 | ||
410698cf BP |
598 | default: |
599 | /* OF1.1 says explicitly to ignore this. */ | |
600 | break; | |
601 | } | |
602 | } | |
603 | ||
b02475c5 | 604 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 605 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 606 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
607 | } |
608 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 609 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
610 | } |
611 | } | |
612 | ||
81a76618 BP |
613 | match_set_metadata_masked(match, ofmatch->metadata, |
614 | ~ofmatch->metadata_mask); | |
410698cf BP |
615 | |
616 | return 0; | |
617 | } | |
618 | ||
81a76618 | 619 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 620 | void |
81a76618 BP |
621 | ofputil_match_to_ofp11_match(const struct match *match, |
622 | struct ofp11_match *ofmatch) | |
410698cf BP |
623 | { |
624 | uint32_t wc = 0; | |
410698cf | 625 | |
81a76618 BP |
626 | memset(ofmatch, 0, sizeof *ofmatch); |
627 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
628 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 629 | |
4e022ec0 | 630 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
631 | wc |= OFPFW11_IN_PORT; |
632 | } else { | |
4e022ec0 | 633 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
634 | } |
635 | ||
74ff3298 JR |
636 | ofmatch->dl_src = match->flow.dl_src; |
637 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
638 | ofmatch->dl_dst = match->flow.dl_dst; | |
639 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 640 | |
81a76618 | 641 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 642 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
643 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
644 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
645 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
646 | wc |= OFPFW11_DL_VLAN_PCP; |
647 | } else { | |
81a76618 BP |
648 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
649 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 650 | } else { |
81a76618 | 651 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
652 | } |
653 | ||
81a76618 | 654 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
655 | wc |= OFPFW11_DL_VLAN_PCP; |
656 | } else { | |
81a76618 | 657 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
658 | } |
659 | } | |
660 | ||
81a76618 | 661 | if (!match->wc.masks.dl_type) { |
410698cf BP |
662 | wc |= OFPFW11_DL_TYPE; |
663 | } else { | |
81a76618 | 664 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
665 | } |
666 | ||
81a76618 | 667 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
668 | wc |= OFPFW11_NW_TOS; |
669 | } else { | |
81a76618 | 670 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
671 | } |
672 | ||
81a76618 | 673 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
674 | wc |= OFPFW11_NW_PROTO; |
675 | } else { | |
81a76618 | 676 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
677 | } |
678 | ||
81a76618 BP |
679 | ofmatch->nw_src = match->flow.nw_src; |
680 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
681 | ofmatch->nw_dst = match->flow.nw_dst; | |
682 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 683 | |
81a76618 | 684 | if (!match->wc.masks.tp_src) { |
410698cf BP |
685 | wc |= OFPFW11_TP_SRC; |
686 | } else { | |
81a76618 | 687 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
688 | } |
689 | ||
81a76618 | 690 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
691 | wc |= OFPFW11_TP_DST; |
692 | } else { | |
81a76618 | 693 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
694 | } |
695 | ||
8bfd0fda | 696 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
697 | wc |= OFPFW11_MPLS_LABEL; |
698 | } else { | |
8bfd0fda BP |
699 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
700 | match->flow.mpls_lse[0])); | |
097d4939 JR |
701 | } |
702 | ||
8bfd0fda | 703 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
704 | wc |= OFPFW11_MPLS_TC; |
705 | } else { | |
8bfd0fda | 706 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 707 | } |
410698cf | 708 | |
81a76618 BP |
709 | ofmatch->metadata = match->flow.metadata; |
710 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 711 | |
81a76618 | 712 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
713 | } |
714 | ||
75fa58f8 BP |
715 | /* Returns the "typical" length of a match for 'protocol', for use in |
716 | * estimating space to preallocate. */ | |
717 | int | |
718 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
719 | { | |
720 | switch (protocol) { | |
721 | case OFPUTIL_P_OF10_STD: | |
722 | case OFPUTIL_P_OF10_STD_TID: | |
723 | return sizeof(struct ofp10_match); | |
724 | ||
725 | case OFPUTIL_P_OF10_NXM: | |
726 | case OFPUTIL_P_OF10_NXM_TID: | |
727 | return NXM_TYPICAL_LEN; | |
728 | ||
729 | case OFPUTIL_P_OF11_STD: | |
730 | return sizeof(struct ofp11_match); | |
731 | ||
732 | case OFPUTIL_P_OF12_OXM: | |
733 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 734 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 735 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
736 | return NXM_TYPICAL_LEN; |
737 | ||
738 | default: | |
428b2edd | 739 | OVS_NOT_REACHED(); |
75fa58f8 BP |
740 | } |
741 | } | |
742 | ||
743 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
744 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
745 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
746 | * in OpenFlow 1.1 or later. | |
747 | * | |
748 | * This function can cause 'b''s data to be reallocated. | |
749 | * | |
750 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
751 | * returns zero. */ | |
752 | int | |
753 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
754 | enum ofputil_protocol protocol) | |
755 | { | |
756 | switch (protocol) { | |
757 | case OFPUTIL_P_OF10_STD: | |
758 | case OFPUTIL_P_OF10_STD_TID: | |
759 | case OFPUTIL_P_OF10_NXM: | |
760 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 761 | OVS_NOT_REACHED(); |
75fa58f8 BP |
762 | |
763 | case OFPUTIL_P_OF11_STD: { | |
764 | struct ofp11_match *om; | |
765 | ||
766 | /* Make sure that no padding is needed. */ | |
767 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
768 | ||
769 | om = ofpbuf_put_uninit(b, sizeof *om); | |
770 | ofputil_match_to_ofp11_match(match, om); | |
771 | return sizeof *om; | |
772 | } | |
773 | ||
774 | case OFPUTIL_P_OF12_OXM: | |
775 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 776 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 777 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
778 | return oxm_put_match(b, match, |
779 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
780 | } |
781 | ||
428b2edd | 782 | OVS_NOT_REACHED(); |
75fa58f8 BP |
783 | } |
784 | ||
36956a7d | 785 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
786 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
787 | * structure. */ | |
36956a7d BP |
788 | ovs_be16 |
789 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
790 | { | |
791 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
792 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
793 | : flow_dl_type); | |
794 | } | |
795 | ||
eec25dc1 | 796 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
797 | * structure, returns the corresponding 'dl_type' value for use in struct |
798 | * flow. */ | |
799 | ovs_be16 | |
800 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
801 | { | |
802 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
803 | ? htons(FLOW_DL_TYPE_NONE) | |
804 | : ofp_dl_type); | |
805 | } | |
2e4f5fcf | 806 | \f |
27527aa0 | 807 | /* Protocols. */ |
7fa91113 | 808 | |
27527aa0 BP |
809 | struct proto_abbrev { |
810 | enum ofputil_protocol protocol; | |
811 | const char *name; | |
812 | }; | |
813 | ||
814 | /* Most users really don't care about some of the differences between | |
aa233d57 | 815 | * protocols. These abbreviations help with that. */ |
27527aa0 | 816 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
817 | { OFPUTIL_P_ANY, "any" }, |
818 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
819 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
820 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
821 | }; |
822 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
823 | ||
824 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 825 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 826 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 827 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 828 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 829 | OFPUTIL_P_OF11_STD, |
85813857 BP |
830 | OFPUTIL_P_OF10_NXM, |
831 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
832 | }; |
833 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
834 | ||
4f13da56 BP |
835 | /* Returns the set of ofputil_protocols that are supported with the given |
836 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
837 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
838 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 839 | enum ofputil_protocol |
4f13da56 | 840 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
841 | { |
842 | switch (version) { | |
2e3fa633 | 843 | case OFP10_VERSION: |
4f13da56 | 844 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
845 | case OFP11_VERSION: |
846 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 847 | case OFP12_VERSION: |
85813857 | 848 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
849 | case OFP13_VERSION: |
850 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
851 | case OFP14_VERSION: |
852 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
853 | case OFP15_VERSION: |
854 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
855 | default: |
856 | return 0; | |
27527aa0 BP |
857 | } |
858 | } | |
859 | ||
4f13da56 BP |
860 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
861 | * connection that has negotiated the given 'version'. 'version' should | |
862 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
863 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
864 | * outside the valid range. */ | |
865 | enum ofputil_protocol | |
866 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
867 | { | |
868 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
869 | } | |
870 | ||
44d3732d | 871 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 872 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 873 | enum ofp_version |
9e1fd49b BP |
874 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
875 | { | |
876 | switch (protocol) { | |
85813857 BP |
877 | case OFPUTIL_P_OF10_STD: |
878 | case OFPUTIL_P_OF10_STD_TID: | |
879 | case OFPUTIL_P_OF10_NXM: | |
880 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 881 | return OFP10_VERSION; |
75fa58f8 BP |
882 | case OFPUTIL_P_OF11_STD: |
883 | return OFP11_VERSION; | |
85813857 | 884 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 885 | return OFP12_VERSION; |
2e1ae200 JR |
886 | case OFPUTIL_P_OF13_OXM: |
887 | return OFP13_VERSION; | |
c37c0382 AC |
888 | case OFPUTIL_P_OF14_OXM: |
889 | return OFP14_VERSION; | |
42dccab5 BP |
890 | case OFPUTIL_P_OF15_OXM: |
891 | return OFP15_VERSION; | |
9e1fd49b BP |
892 | } |
893 | ||
428b2edd | 894 | OVS_NOT_REACHED(); |
9e1fd49b BP |
895 | } |
896 | ||
4f13da56 BP |
897 | /* Returns a bitmap of OpenFlow versions that are supported by at |
898 | * least one of the 'protocols'. */ | |
899 | uint32_t | |
900 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
901 | { | |
902 | uint32_t bitmap = 0; | |
903 | ||
904 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
905 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
906 | ||
907 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
908 | } | |
909 | ||
910 | return bitmap; | |
911 | } | |
912 | ||
913 | /* Returns the set of protocols that are supported on top of the | |
914 | * OpenFlow versions included in 'bitmap'. */ | |
915 | enum ofputil_protocol | |
916 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
917 | { | |
918 | enum ofputil_protocol protocols = 0; | |
919 | ||
920 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
921 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
922 | ||
923 | protocols |= ofputil_protocols_from_ofp_version(version); | |
924 | } | |
925 | ||
926 | return protocols; | |
927 | } | |
928 | ||
27527aa0 BP |
929 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
930 | * otherwise. */ | |
7fa91113 | 931 | bool |
27527aa0 | 932 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 933 | { |
27527aa0 BP |
934 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
935 | } | |
936 | ||
937 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
938 | * extension turned on or off if 'enable' is true or false, respectively. | |
939 | * | |
940 | * This extension is only useful for protocols whose "standard" version does | |
941 | * not allow specific tables to be modified. In particular, this is true of | |
942 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
943 | * specifies a table ID and so there is no need for such an extension. When | |
944 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
945 | * extension, this function just returns its 'protocol' argument unchanged | |
946 | * regardless of the value of 'enable'. */ | |
947 | enum ofputil_protocol | |
948 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
949 | { | |
950 | switch (protocol) { | |
85813857 BP |
951 | case OFPUTIL_P_OF10_STD: |
952 | case OFPUTIL_P_OF10_STD_TID: | |
953 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 954 | |
85813857 BP |
955 | case OFPUTIL_P_OF10_NXM: |
956 | case OFPUTIL_P_OF10_NXM_TID: | |
957 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 958 | |
75fa58f8 BP |
959 | case OFPUTIL_P_OF11_STD: |
960 | return OFPUTIL_P_OF11_STD; | |
961 | ||
85813857 BP |
962 | case OFPUTIL_P_OF12_OXM: |
963 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 964 | |
2e1ae200 JR |
965 | case OFPUTIL_P_OF13_OXM: |
966 | return OFPUTIL_P_OF13_OXM; | |
967 | ||
c37c0382 AC |
968 | case OFPUTIL_P_OF14_OXM: |
969 | return OFPUTIL_P_OF14_OXM; | |
970 | ||
42dccab5 BP |
971 | case OFPUTIL_P_OF15_OXM: |
972 | return OFPUTIL_P_OF15_OXM; | |
973 | ||
27527aa0 | 974 | default: |
428b2edd | 975 | OVS_NOT_REACHED(); |
7fa91113 | 976 | } |
27527aa0 | 977 | } |
7fa91113 | 978 | |
27527aa0 BP |
979 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
980 | * some extension to a standard protocol version, the return value is the | |
981 | * standard version of that protocol without any extension. If 'protocol' is a | |
982 | * standard protocol version, returns 'protocol' unchanged. */ | |
983 | enum ofputil_protocol | |
984 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
985 | { | |
986 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
987 | } |
988 | ||
27527aa0 BP |
989 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
990 | enum ofputil_protocol | |
991 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
992 | enum ofputil_protocol new_base) | |
7fa91113 | 993 | { |
27527aa0 BP |
994 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
995 | ||
996 | switch (new_base) { | |
85813857 BP |
997 | case OFPUTIL_P_OF10_STD: |
998 | case OFPUTIL_P_OF10_STD_TID: | |
999 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 1000 | |
85813857 BP |
1001 | case OFPUTIL_P_OF10_NXM: |
1002 | case OFPUTIL_P_OF10_NXM_TID: | |
1003 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 1004 | |
75fa58f8 BP |
1005 | case OFPUTIL_P_OF11_STD: |
1006 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
1007 | ||
85813857 BP |
1008 | case OFPUTIL_P_OF12_OXM: |
1009 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 1010 | |
2e1ae200 JR |
1011 | case OFPUTIL_P_OF13_OXM: |
1012 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
1013 | ||
c37c0382 AC |
1014 | case OFPUTIL_P_OF14_OXM: |
1015 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
1016 | ||
42dccab5 BP |
1017 | case OFPUTIL_P_OF15_OXM: |
1018 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
1019 | ||
7fa91113 | 1020 | default: |
428b2edd | 1021 | OVS_NOT_REACHED(); |
7fa91113 BP |
1022 | } |
1023 | } | |
1024 | ||
27527aa0 BP |
1025 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
1026 | * 'protocol' is either a single protocol or it is a combination of protocols | |
1027 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
1028 | const char * | |
1029 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 1030 | { |
27527aa0 BP |
1031 | const struct proto_abbrev *p; |
1032 | ||
1033 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
1034 | * warning if we forget any. */ | |
1035 | switch (protocol) { | |
85813857 | 1036 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1037 | return "NXM-table_id"; |
1038 | ||
85813857 | 1039 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
1040 | return "NXM+table_id"; |
1041 | ||
85813857 | 1042 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1043 | return "OpenFlow10-table_id"; |
1044 | ||
85813857 | 1045 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 1046 | return "OpenFlow10+table_id"; |
44d3732d | 1047 | |
75fa58f8 BP |
1048 | case OFPUTIL_P_OF11_STD: |
1049 | return "OpenFlow11"; | |
1050 | ||
85813857 | 1051 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 1052 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
1053 | |
1054 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 1055 | return "OXM-OpenFlow13"; |
c37c0382 AC |
1056 | |
1057 | case OFPUTIL_P_OF14_OXM: | |
1058 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
1059 | |
1060 | case OFPUTIL_P_OF15_OXM: | |
1061 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
1062 | } |
1063 | ||
1064 | /* Check abbreviations. */ | |
1065 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1066 | if (protocol == p->protocol) { | |
1067 | return p->name; | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | return NULL; | |
1072 | } | |
1073 | ||
1074 | /* Returns a string that represents 'protocols'. The return value might be a | |
1075 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
1076 | * value is "none" if 'protocols' is 0. | |
1077 | * | |
1078 | * The caller must free the returned string (with free()). */ | |
1079 | char * | |
1080 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
1081 | { | |
1082 | struct ds s; | |
1083 | ||
cb22974d | 1084 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
1085 | if (protocols == 0) { |
1086 | return xstrdup("none"); | |
1087 | } | |
1088 | ||
1089 | ds_init(&s); | |
1090 | while (protocols) { | |
1091 | const struct proto_abbrev *p; | |
1092 | int i; | |
1093 | ||
1094 | if (s.length) { | |
1095 | ds_put_char(&s, ','); | |
1096 | } | |
1097 | ||
1098 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1099 | if ((protocols & p->protocol) == p->protocol) { | |
1100 | ds_put_cstr(&s, p->name); | |
1101 | protocols &= ~p->protocol; | |
1102 | goto match; | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1107 | enum ofputil_protocol bit = 1u << i; | |
1108 | ||
1109 | if (protocols & bit) { | |
1110 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1111 | protocols &= ~bit; | |
1112 | goto match; | |
1113 | } | |
1114 | } | |
428b2edd | 1115 | OVS_NOT_REACHED(); |
27527aa0 BP |
1116 | |
1117 | match: ; | |
1118 | } | |
1119 | return ds_steal_cstr(&s); | |
1120 | } | |
1121 | ||
1122 | static enum ofputil_protocol | |
1123 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1124 | { | |
1125 | const struct proto_abbrev *p; | |
1126 | int i; | |
1127 | ||
1128 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1129 | enum ofputil_protocol bit = 1u << i; | |
1130 | const char *name = ofputil_protocol_to_string(bit); | |
1131 | ||
1132 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1133 | return bit; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1138 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1139 | return p->protocol; | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1147 | * single protocol name or abbreviation or a comma-separated list of them. | |
1148 | * | |
1149 | * Aborts the program with an error message if 's' is invalid. */ | |
1150 | enum ofputil_protocol | |
1151 | ofputil_protocols_from_string(const char *s) | |
1152 | { | |
1153 | const char *orig_s = s; | |
1154 | enum ofputil_protocol protocols; | |
1155 | ||
1156 | protocols = 0; | |
1157 | while (*s) { | |
1158 | enum ofputil_protocol p; | |
1159 | size_t n; | |
1160 | ||
1161 | n = strcspn(s, ","); | |
1162 | if (n == 0) { | |
1163 | s++; | |
1164 | continue; | |
1165 | } | |
1166 | ||
1167 | p = ofputil_protocol_from_string__(s, n); | |
1168 | if (!p) { | |
1169 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1170 | } | |
1171 | protocols |= p; | |
1172 | ||
1173 | s += n; | |
1174 | } | |
1175 | ||
1176 | if (!protocols) { | |
1177 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1178 | } | |
1179 | return protocols; | |
88ca35ee BP |
1180 | } |
1181 | ||
9d84066c | 1182 | enum ofp_version |
03e1125c SH |
1183 | ofputil_version_from_string(const char *s) |
1184 | { | |
1185 | if (!strcasecmp(s, "OpenFlow10")) { | |
1186 | return OFP10_VERSION; | |
1187 | } | |
1188 | if (!strcasecmp(s, "OpenFlow11")) { | |
1189 | return OFP11_VERSION; | |
1190 | } | |
1191 | if (!strcasecmp(s, "OpenFlow12")) { | |
1192 | return OFP12_VERSION; | |
1193 | } | |
2e1ae200 JR |
1194 | if (!strcasecmp(s, "OpenFlow13")) { |
1195 | return OFP13_VERSION; | |
1196 | } | |
c37c0382 AC |
1197 | if (!strcasecmp(s, "OpenFlow14")) { |
1198 | return OFP14_VERSION; | |
1199 | } | |
42dccab5 BP |
1200 | if (!strcasecmp(s, "OpenFlow15")) { |
1201 | return OFP15_VERSION; | |
1202 | } | |
7beaa082 | 1203 | return 0; |
03e1125c SH |
1204 | } |
1205 | ||
1206 | static bool | |
e091ef84 | 1207 | is_delimiter(unsigned char c) |
03e1125c SH |
1208 | { |
1209 | return isspace(c) || c == ','; | |
1210 | } | |
1211 | ||
1212 | uint32_t | |
1213 | ofputil_versions_from_string(const char *s) | |
1214 | { | |
1215 | size_t i = 0; | |
1216 | uint32_t bitmap = 0; | |
1217 | ||
1218 | while (s[i]) { | |
1219 | size_t j; | |
7beaa082 | 1220 | int version; |
03e1125c SH |
1221 | char *key; |
1222 | ||
1223 | if (is_delimiter(s[i])) { | |
1224 | i++; | |
1225 | continue; | |
1226 | } | |
1227 | j = 0; | |
1228 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1229 | j++; | |
1230 | } | |
1231 | key = xmemdup0(s + i, j); | |
1232 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1233 | if (!version) { |
1234 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1235 | } | |
03e1125c SH |
1236 | free(key); |
1237 | bitmap |= 1u << version; | |
1238 | i += j; | |
1239 | } | |
1240 | ||
1241 | return bitmap; | |
1242 | } | |
1243 | ||
7beaa082 SH |
1244 | uint32_t |
1245 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1246 | { | |
1247 | uint32_t bitmap = 0; | |
1248 | ||
1249 | while (count--) { | |
1250 | int version = ofputil_version_from_string(s[count]); | |
1251 | if (!version) { | |
1252 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1253 | } else { | |
1254 | bitmap |= 1u << version; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | return bitmap; | |
1259 | } | |
1260 | ||
03e1125c SH |
1261 | const char * |
1262 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1263 | { | |
1264 | switch (ofp_version) { | |
1265 | case OFP10_VERSION: | |
1266 | return "OpenFlow10"; | |
1267 | case OFP11_VERSION: | |
1268 | return "OpenFlow11"; | |
1269 | case OFP12_VERSION: | |
1270 | return "OpenFlow12"; | |
2e1ae200 JR |
1271 | case OFP13_VERSION: |
1272 | return "OpenFlow13"; | |
c37c0382 AC |
1273 | case OFP14_VERSION: |
1274 | return "OpenFlow14"; | |
42dccab5 BP |
1275 | case OFP15_VERSION: |
1276 | return "OpenFlow15"; | |
03e1125c | 1277 | default: |
428b2edd | 1278 | OVS_NOT_REACHED(); |
03e1125c SH |
1279 | } |
1280 | } | |
1281 | ||
54834960 EJ |
1282 | bool |
1283 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1284 | { | |
1285 | switch (packet_in_format) { | |
1286 | case NXPIF_OPENFLOW10: | |
1287 | case NXPIF_NXM: | |
1288 | return true; | |
1289 | } | |
1290 | ||
1291 | return false; | |
1292 | } | |
1293 | ||
1294 | const char * | |
1295 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1296 | { | |
1297 | switch (packet_in_format) { | |
1298 | case NXPIF_OPENFLOW10: | |
1299 | return "openflow10"; | |
1300 | case NXPIF_NXM: | |
1301 | return "nxm"; | |
1302 | default: | |
428b2edd | 1303 | OVS_NOT_REACHED(); |
54834960 EJ |
1304 | } |
1305 | } | |
1306 | ||
1307 | int | |
1308 | ofputil_packet_in_format_from_string(const char *s) | |
1309 | { | |
1310 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1311 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1312 | : -1); | |
1313 | } | |
1314 | ||
03e1125c SH |
1315 | void |
1316 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1317 | { | |
8989046d | 1318 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1319 | } |
1320 | ||
1321 | void | |
1322 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1323 | { | |
1324 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1325 | } | |
1326 | ||
1327 | static void | |
1328 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1329 | void (*format_version)(struct ds *msg, | |
1330 | enum ofp_version)) | |
1331 | { | |
1332 | while (bitmap) { | |
1333 | format_version(msg, raw_ctz(bitmap)); | |
1334 | bitmap = zero_rightmost_1bit(bitmap); | |
1335 | if (bitmap) { | |
1336 | ds_put_cstr(msg, ", "); | |
1337 | } | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | void | |
1342 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1343 | { | |
1344 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1345 | } | |
1346 | ||
1347 | void | |
1348 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1349 | { | |
1350 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1351 | } | |
1352 | ||
de6c85b0 SH |
1353 | static bool |
1354 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1355 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1356 | { |
1357 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1358 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1359 | uint32_t allowed_versions; |
de6c85b0 SH |
1360 | |
1361 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1362 | return false; | |
1363 | } | |
1364 | ||
1365 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1366 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1367 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1368 | * wire-protocol versions greater than 31. |
1369 | */ | |
0935de41 | 1370 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1371 | |
0935de41 | 1372 | if (allowed_versions & 1) { |
de6c85b0 SH |
1373 | /* There's no OpenFlow version 0. */ |
1374 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1375 | "version 0x00"); | |
0935de41 | 1376 | allowed_versions &= ~1u; |
de6c85b0 SH |
1377 | } |
1378 | ||
0935de41 | 1379 | if (!allowed_versions) { |
de6c85b0 SH |
1380 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1381 | "version (between 0x01 and 0x1f)"); | |
1382 | return false; | |
1383 | } | |
1384 | ||
0935de41 | 1385 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1386 | return true; |
1387 | } | |
1388 | ||
1389 | static uint32_t | |
1390 | version_bitmap_from_version(uint8_t ofp_version) | |
1391 | { | |
1392 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1393 | } | |
1394 | ||
1395 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1396 | * the set of OpenFlow versions for which 'oh' announces support. | |
1397 | * | |
1398 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1399 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1400 | * returns false if 'oh' contains some data that could not be fully understood, | |
1401 | * true if 'oh' was completely parsed. */ | |
1402 | bool | |
1403 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1404 | { | |
1405 | struct ofpbuf msg; | |
1406 | bool ok = true; | |
1407 | ||
1408 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1409 | ofpbuf_pull(&msg, sizeof *oh); | |
1410 | ||
1411 | *allowed_versions = version_bitmap_from_version(oh->version); | |
6fd6ed71 | 1412 | while (msg.size) { |
de6c85b0 SH |
1413 | const struct ofp_hello_elem_header *oheh; |
1414 | unsigned int len; | |
1415 | ||
6fd6ed71 | 1416 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1417 | return false; |
1418 | } | |
1419 | ||
6fd6ed71 | 1420 | oheh = msg.data; |
de6c85b0 SH |
1421 | len = ntohs(oheh->length); |
1422 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1423 | return false; | |
1424 | } | |
1425 | ||
1426 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1427 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1428 | ok = false; | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | return ok; | |
1433 | } | |
1434 | ||
1435 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1436 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1437 | static bool |
de6c85b0 SH |
1438 | should_send_version_bitmap(uint32_t allowed_versions) |
1439 | { | |
1440 | return !is_pow2((allowed_versions >> 1) + 1); | |
1441 | } | |
1442 | ||
1443 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1444 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1445 | struct ofpbuf * | |
1446 | ofputil_encode_hello(uint32_t allowed_versions) | |
1447 | { | |
1448 | enum ofp_version ofp_version; | |
1449 | struct ofpbuf *msg; | |
1450 | ||
1451 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1452 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1453 | ||
1454 | if (should_send_version_bitmap(allowed_versions)) { | |
1455 | struct ofp_hello_elem_header *oheh; | |
1456 | uint16_t map_len; | |
1457 | ||
74c4b9c1 | 1458 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1459 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1460 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1461 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1462 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1463 | |
1464 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1465 | } |
1466 | ||
1467 | return msg; | |
1468 | } | |
1469 | ||
27527aa0 BP |
1470 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1471 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1472 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1473 | * connection if the switch processes the returned message correctly. (If | |
1474 | * '*next != want' then the caller will have to iterate.) | |
1475 | * | |
e43928f2 BP |
1476 | * If 'current == want', or if it is not possible to transition from 'current' |
1477 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1478 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1479 | struct ofpbuf * |
1480 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1481 | enum ofputil_protocol want, | |
1482 | enum ofputil_protocol *next) | |
1483 | { | |
e43928f2 | 1484 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1485 | enum ofputil_protocol cur_base, want_base; |
1486 | bool cur_tid, want_tid; | |
1487 | ||
e43928f2 BP |
1488 | cur_version = ofputil_protocol_to_ofp_version(current); |
1489 | want_version = ofputil_protocol_to_ofp_version(want); | |
1490 | if (cur_version != want_version) { | |
1491 | *next = current; | |
1492 | return NULL; | |
1493 | } | |
1494 | ||
27527aa0 BP |
1495 | cur_base = ofputil_protocol_to_base(current); |
1496 | want_base = ofputil_protocol_to_base(want); | |
1497 | if (cur_base != want_base) { | |
1498 | *next = ofputil_protocol_set_base(current, want_base); | |
1499 | ||
1500 | switch (want_base) { | |
85813857 | 1501 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1502 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1503 | ||
85813857 | 1504 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1505 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1506 | ||
75fa58f8 | 1507 | case OFPUTIL_P_OF11_STD: |
85813857 | 1508 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1509 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1510 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1511 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1512 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1513 | * verified above that we're not trying to change versions. */ |
428b2edd | 1514 | OVS_NOT_REACHED(); |
44d3732d | 1515 | |
85813857 BP |
1516 | case OFPUTIL_P_OF10_STD_TID: |
1517 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1518 | OVS_NOT_REACHED(); |
27527aa0 BP |
1519 | } |
1520 | } | |
1521 | ||
1522 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1523 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1524 | if (cur_tid != want_tid) { | |
1525 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1526 | return ofputil_make_flow_mod_table_id(want_tid); | |
1527 | } | |
1528 | ||
cb22974d | 1529 | ovs_assert(current == want); |
27527aa0 BP |
1530 | |
1531 | *next = current; | |
1532 | return NULL; | |
88ca35ee BP |
1533 | } |
1534 | ||
27527aa0 BP |
1535 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1536 | * format to 'nxff'. */ | |
88ca35ee | 1537 | struct ofpbuf * |
27527aa0 | 1538 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1539 | { |
73dbf4ab | 1540 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1541 | struct ofpbuf *msg; |
1542 | ||
cb22974d | 1543 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1544 | |
982697a4 BP |
1545 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1546 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1547 | sff->format = htonl(nxff); |
88ca35ee BP |
1548 | |
1549 | return msg; | |
1550 | } | |
1551 | ||
27527aa0 BP |
1552 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1553 | * otherwise. */ | |
1554 | enum ofputil_protocol | |
1555 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1556 | { | |
1557 | switch (flow_format) { | |
1558 | case NXFF_OPENFLOW10: | |
85813857 | 1559 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1560 | |
1561 | case NXFF_NXM: | |
85813857 | 1562 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1563 | |
1564 | default: | |
1565 | return 0; | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1570 | bool | |
1571 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1572 | { | |
1573 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1574 | } | |
1575 | ||
1576 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1577 | * value. */ | |
1578 | const char * | |
1579 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1580 | { | |
1581 | switch (flow_format) { | |
1582 | case NXFF_OPENFLOW10: | |
1583 | return "openflow10"; | |
1584 | case NXFF_NXM: | |
1585 | return "nxm"; | |
1586 | default: | |
428b2edd | 1587 | OVS_NOT_REACHED(); |
27527aa0 BP |
1588 | } |
1589 | } | |
1590 | ||
54834960 | 1591 | struct ofpbuf * |
3f4a1939 SH |
1592 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1593 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1594 | { |
73dbf4ab | 1595 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1596 | struct ofpbuf *msg; |
1597 | ||
3f4a1939 | 1598 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1599 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1600 | spif->format = htonl(packet_in_format); |
1601 | ||
1602 | return msg; | |
1603 | } | |
1604 | ||
6c1491fb BP |
1605 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1606 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1607 | struct ofpbuf * | |
1608 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1609 | { | |
73dbf4ab | 1610 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1611 | struct ofpbuf *msg; |
1612 | ||
982697a4 BP |
1613 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1614 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1615 | nfmti->set = flow_mod_table_id; |
1616 | return msg; | |
1617 | } | |
1618 | ||
0fb88c18 BP |
1619 | struct ofputil_flow_mod_flag { |
1620 | uint16_t raw_flag; | |
1621 | enum ofp_version min_version, max_version; | |
1622 | enum ofputil_flow_mod_flags flag; | |
1623 | }; | |
1624 | ||
1625 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1626 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1627 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1628 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1629 | OFPUTIL_FF_EMERG }, | |
1630 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1631 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1632 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1633 | { 0, 0, 0, 0 }, | |
1634 | }; | |
1635 | ||
1636 | static enum ofperr | |
1637 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1638 | enum ofp_flow_mod_command command, | |
1639 | enum ofp_version version, | |
1640 | enum ofputil_flow_mod_flags *flagsp) | |
1641 | { | |
1642 | uint16_t raw_flags = ntohs(raw_flags_); | |
1643 | const struct ofputil_flow_mod_flag *f; | |
1644 | ||
1645 | *flagsp = 0; | |
1646 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1647 | if (raw_flags & f->raw_flag | |
1648 | && version >= f->min_version | |
1649 | && (!f->max_version || version <= f->max_version)) { | |
1650 | raw_flags &= ~f->raw_flag; | |
1651 | *flagsp |= f->flag; | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1656 | * never do. | |
1657 | * | |
1658 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1659 | * resets counters. */ | |
1660 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1661 | && command == OFPFC_ADD) { | |
1662 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1663 | } | |
1664 | ||
1665 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1666 | } | |
1667 | ||
1668 | static ovs_be16 | |
1669 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1670 | enum ofp_version version) | |
1671 | { | |
1672 | const struct ofputil_flow_mod_flag *f; | |
1673 | uint16_t raw_flags; | |
1674 | ||
1675 | raw_flags = 0; | |
1676 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1677 | if (f->flag & flags | |
1678 | && version >= f->min_version | |
1679 | && (!f->max_version || version <= f->max_version)) { | |
1680 | raw_flags |= f->raw_flag; | |
1681 | } | |
1682 | } | |
1683 | ||
1684 | return htons(raw_flags); | |
1685 | } | |
1686 | ||
7fa91113 BP |
1687 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1688 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1689 | * code. | |
1690 | * | |
f25d0cf3 BP |
1691 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1692 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1693 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1694 | * | |
1695 | * Does not validate the flow_mod actions. The caller should do that, with | |
1696 | * ofpacts_check(). */ | |
90bf1e07 | 1697 | enum ofperr |
a9a2da38 | 1698 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1699 | const struct ofp_header *oh, |
f25d0cf3 | 1700 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1701 | struct ofpbuf *ofpacts, |
1702 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1703 | { |
0fb88c18 BP |
1704 | ovs_be16 raw_flags; |
1705 | enum ofperr error; | |
2e4f5fcf | 1706 | struct ofpbuf b; |
982697a4 | 1707 | enum ofpraw raw; |
2e4f5fcf | 1708 | |
cc40d06b SH |
1709 | /* Ignored for non-delete actions */ |
1710 | fm->delete_reason = OFPRR_DELETE; | |
1711 | ||
2013493b | 1712 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1713 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1714 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1715 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1716 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1717 | |
bbc32a88 | 1718 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1719 | |
81a76618 | 1720 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1721 | if (error) { |
1722 | return error; | |
1c0b7503 BP |
1723 | } |
1724 | ||
2e4f5fcf | 1725 | /* Translate the message. */ |
81a76618 | 1726 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1727 | if (ofm->command == OFPFC_ADD |
1728 | || (oh->version == OFP11_VERSION | |
1729 | && (ofm->command == OFPFC_MODIFY || | |
1730 | ofm->command == OFPFC_MODIFY_STRICT) | |
1731 | && ofm->cookie_mask == htonll(0))) { | |
1732 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1733 | * not match on the cookie is treated as an "add" if there is no | |
1734 | * match. */ | |
aa319503 BP |
1735 | fm->cookie = htonll(0); |
1736 | fm->cookie_mask = htonll(0); | |
1737 | fm->new_cookie = ofm->cookie; | |
1738 | } else { | |
aa319503 BP |
1739 | fm->cookie = ofm->cookie; |
1740 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1741 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1742 | } |
23342857 | 1743 | fm->modify_cookie = false; |
aa319503 | 1744 | fm->command = ofm->command; |
0e197060 BP |
1745 | |
1746 | /* Get table ID. | |
1747 | * | |
083761ad SH |
1748 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1749 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1750 | fm->table_id = ofm->table_id; |
083761ad | 1751 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1752 | && (oh->version == OFP11_VERSION |
1753 | || (ofm->command != OFPFC_DELETE && | |
1754 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1755 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1756 | } | |
1757 | ||
2e4f5fcf BP |
1758 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1759 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1760 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1761 | fm->importance = ntohs(ofm->importance); | |
1762 | } else { | |
1763 | fm->importance = 0; | |
1764 | } | |
2e4f5fcf | 1765 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1766 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1767 | if (error) { |
1768 | return error; | |
1769 | } | |
7395c052 | 1770 | |
1fe4c0a0 BP |
1771 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1772 | ofm->command == OFPFC_DELETE_STRICT | |
1773 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1774 | : OFPG_ANY); |
0fb88c18 | 1775 | raw_flags = ofm->flags; |
aa319503 | 1776 | } else { |
0fb88c18 BP |
1777 | uint16_t command; |
1778 | ||
aa319503 BP |
1779 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1780 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1781 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1782 | |
1783 | /* Get the ofp10_flow_mod. */ | |
1784 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1785 | ||
aa319503 | 1786 | /* Translate the rule. */ |
81a76618 BP |
1787 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1788 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1789 | |
81a76618 BP |
1790 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1791 | * highest possible priority. */ | |
1792 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1793 | ? ntohs(ofm->priority) | |
1794 | : UINT16_MAX); | |
1795 | ||
aa319503 BP |
1796 | /* Translate the message. */ |
1797 | command = ntohs(ofm->command); | |
1798 | fm->cookie = htonll(0); | |
1799 | fm->cookie_mask = htonll(0); | |
1800 | fm->new_cookie = ofm->cookie; | |
1801 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1802 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1803 | fm->importance = 0; |
aa319503 | 1804 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1805 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1806 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1807 | raw_flags = ofm->flags; |
aa319503 BP |
1808 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1809 | /* Nicira extended flow_mod. */ | |
1810 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1811 | |
1812 | /* Dissect the message. */ | |
1813 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1814 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1815 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1816 | if (error) { |
1817 | return error; | |
1818 | } | |
aa319503 BP |
1819 | |
1820 | /* Translate the message. */ | |
1821 | command = ntohs(nfm->command); | |
1822 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1823 | /* Flow additions may only set a new cookie, not match an | |
1824 | * existing cookie. */ | |
1825 | return OFPERR_NXBRC_NXM_INVALID; | |
1826 | } | |
81a76618 | 1827 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1828 | fm->new_cookie = nfm->cookie; |
1829 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1830 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1831 | fm->importance = 0; |
aa319503 | 1832 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1833 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1834 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1835 | raw_flags = nfm->flags; |
aa319503 | 1836 | } else { |
428b2edd | 1837 | OVS_NOT_REACHED(); |
aa319503 BP |
1838 | } |
1839 | ||
b8266395 | 1840 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1841 | if (protocol & OFPUTIL_P_TID) { |
1842 | fm->command = command & 0xff; | |
1843 | fm->table_id = command >> 8; | |
1844 | } else { | |
1f42be1c JR |
1845 | if (command > 0xff) { |
1846 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1847 | "but flow_mod_table_id extension is not enabled"); | |
1848 | } | |
aa319503 BP |
1849 | fm->command = command; |
1850 | fm->table_id = 0xff; | |
e729e793 | 1851 | } |
2e4f5fcf BP |
1852 | } |
1853 | ||
1f42be1c JR |
1854 | if (fm->command > OFPFC_DELETE_STRICT) { |
1855 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1856 | } | |
1857 | ||
6fd6ed71 | 1858 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1859 | oh->version, ofpacts); |
1860 | if (error) { | |
1861 | return error; | |
1862 | } | |
6fd6ed71 PS |
1863 | fm->ofpacts = ofpacts->data; |
1864 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1865 | |
0fb88c18 BP |
1866 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1867 | oh->version, &fm->flags); | |
1868 | if (error) { | |
1869 | return error; | |
1870 | } | |
1871 | ||
1872 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1873 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1874 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1875 | * | |
1876 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1877 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1878 | * code, so just state that the flow table is full. */ | |
1879 | return (fm->hard_timeout || fm->idle_timeout | |
1880 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1881 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1882 | } | |
1883 | ||
ba2fe8e9 BP |
1884 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1885 | &fm->match.flow, max_port, | |
1886 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1887 | } |
1888 | ||
638a19b0 JR |
1889 | static enum ofperr |
1890 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1891 | struct ofpbuf *bands) | |
1892 | { | |
1893 | const struct ofp13_meter_band_header *ombh; | |
1894 | struct ofputil_meter_band *mb; | |
1895 | uint16_t n = 0; | |
1896 | ||
1897 | ombh = ofpbuf_try_pull(msg, len); | |
1898 | if (!ombh) { | |
1899 | return OFPERR_OFPBRC_BAD_LEN; | |
1900 | } | |
1901 | ||
1902 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1903 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1904 | /* All supported band types have the same length. */ |
638a19b0 JR |
1905 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1906 | return OFPERR_OFPBRC_BAD_LEN; | |
1907 | } | |
1908 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1909 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1910 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1911 | return OFPERR_OFPMMFC_BAD_BAND; | |
1912 | } | |
638a19b0 JR |
1913 | mb->rate = ntohl(ombh->rate); |
1914 | mb->burst_size = ntohl(ombh->burst_size); | |
1915 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1916 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1917 | n++; | |
1918 | len -= ombh_len; | |
db5a1019 AW |
1919 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1920 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1921 | } |
1922 | if (len) { | |
1923 | return OFPERR_OFPBRC_BAD_LEN; | |
1924 | } | |
1925 | *n_bands = n; | |
1926 | return 0; | |
1927 | } | |
1928 | ||
1929 | enum ofperr | |
1930 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1931 | struct ofputil_meter_mod *mm, | |
1932 | struct ofpbuf *bands) | |
1933 | { | |
1934 | const struct ofp13_meter_mod *omm; | |
1935 | struct ofpbuf b; | |
1936 | ||
1937 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1938 | ofpraw_pull_assert(&b); | |
1939 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1940 | ||
1941 | /* Translate the message. */ | |
1942 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1943 | if (mm->command != OFPMC13_ADD && |
1944 | mm->command != OFPMC13_MODIFY && | |
1945 | mm->command != OFPMC13_DELETE) { | |
1946 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1947 | } | |
638a19b0 JR |
1948 | mm->meter.meter_id = ntohl(omm->meter_id); |
1949 | ||
1950 | if (mm->command == OFPMC13_DELETE) { | |
1951 | mm->meter.flags = 0; | |
1952 | mm->meter.n_bands = 0; | |
1953 | mm->meter.bands = NULL; | |
1954 | } else { | |
1955 | enum ofperr error; | |
1956 | ||
1957 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1958 | if (mm->meter.flags & OFPMF13_KBPS && |
1959 | mm->meter.flags & OFPMF13_PKTPS) { | |
1960 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1961 | } | |
6fd6ed71 | 1962 | mm->meter.bands = bands->data; |
638a19b0 | 1963 | |
6fd6ed71 | 1964 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1965 | if (error) { |
1966 | return error; | |
1967 | } | |
1968 | } | |
1969 | return 0; | |
1970 | } | |
1971 | ||
1972 | void | |
1973 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1974 | { | |
1975 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1976 | *meter_id = ntohl(omr->meter_id); | |
1977 | } | |
1978 | ||
1979 | struct ofpbuf * | |
1980 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1981 | enum ofputil_meter_request_type type, | |
1982 | uint32_t meter_id) | |
1983 | { | |
1984 | struct ofpbuf *msg; | |
1985 | ||
1986 | enum ofpraw raw; | |
1987 | ||
1988 | switch (type) { | |
1989 | case OFPUTIL_METER_CONFIG: | |
1990 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1991 | break; | |
1992 | case OFPUTIL_METER_STATS: | |
1993 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1994 | break; | |
1995 | default: | |
1996 | case OFPUTIL_METER_FEATURES: | |
1997 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1998 | break; | |
1999 | } | |
2000 | ||
2001 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
2002 | ||
2003 | if (type != OFPUTIL_METER_FEATURES) { | |
2004 | struct ofp13_meter_multipart_request *omr; | |
2005 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
2006 | omr->meter_id = htonl(meter_id); | |
2007 | } | |
2008 | return msg; | |
2009 | } | |
2010 | ||
2011 | static void | |
2012 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
2013 | struct ofpbuf *msg) | |
2014 | { | |
2015 | uint16_t n = 0; | |
2016 | ||
2017 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 2018 | /* Currently all band types have same size. */ |
638a19b0 JR |
2019 | struct ofp13_meter_band_dscp_remark *ombh; |
2020 | size_t ombh_len = sizeof *ombh; | |
2021 | ||
2022 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
2023 | ||
2024 | ombh->type = htons(mb->type); | |
2025 | ombh->len = htons(ombh_len); | |
2026 | ombh->rate = htonl(mb->rate); | |
2027 | ombh->burst_size = htonl(mb->burst_size); | |
2028 | ombh->prec_level = mb->prec_level; | |
2029 | ||
2030 | mb++; | |
2031 | } | |
2032 | } | |
2033 | ||
2034 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
2035 | void | |
ca6ba700 | 2036 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
2037 | const struct ofputil_meter_config *mc) |
2038 | { | |
2039 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 2040 | size_t start_ofs = msg->size; |
6a5490c6 | 2041 | struct ofp13_meter_config *reply; |
638a19b0 | 2042 | |
6a5490c6 | 2043 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
2044 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
2045 | ||
32756a57 | 2046 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
2047 | reply->flags = htons(mc->flags); |
2048 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 2049 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
2050 | |
2051 | ofpmp_postappend(replies, start_ofs); | |
2052 | } | |
2053 | ||
2054 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
2055 | void | |
ca6ba700 | 2056 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
2057 | const struct ofputil_meter_stats *ms) |
2058 | { | |
2059 | struct ofp13_meter_stats *reply; | |
2060 | uint16_t n = 0; | |
2061 | uint16_t len; | |
2062 | ||
2063 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
2064 | reply = ofpmp_append(replies, len); | |
2065 | ||
2066 | reply->meter_id = htonl(ms->meter_id); | |
2067 | reply->len = htons(len); | |
2068 | memset(reply->pad, 0, sizeof reply->pad); | |
2069 | reply->flow_count = htonl(ms->flow_count); | |
2070 | reply->packet_in_count = htonll(ms->packet_in_count); | |
2071 | reply->byte_in_count = htonll(ms->byte_in_count); | |
2072 | reply->duration_sec = htonl(ms->duration_sec); | |
2073 | reply->duration_nsec = htonl(ms->duration_nsec); | |
2074 | ||
2075 | for (n = 0; n < ms->n_bands; ++n) { | |
2076 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
2077 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
2078 | ||
2079 | dst->packet_band_count = htonll(src->packet_count); | |
2080 | dst->byte_band_count = htonll(src->byte_count); | |
2081 | } | |
2082 | } | |
2083 | ||
2084 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
2085 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
2086 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
2087 | * it across the call. | |
2088 | * | |
2089 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
2090 | * message. Calling this function multiple times for a single 'msg' iterates | |
2091 | * through the replies. 'bands' is cleared for each reply. | |
2092 | * | |
2093 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2094 | * otherwise a positive errno value. */ | |
2095 | int | |
2096 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2097 | struct ofputil_meter_config *mc, | |
2098 | struct ofpbuf *bands) | |
2099 | { | |
2100 | const struct ofp13_meter_config *omc; | |
2101 | enum ofperr err; | |
2102 | ||
2103 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2104 | if (!msg->header) { |
638a19b0 JR |
2105 | ofpraw_pull_assert(msg); |
2106 | } | |
2107 | ||
6fd6ed71 | 2108 | if (!msg->size) { |
638a19b0 JR |
2109 | return EOF; |
2110 | } | |
2111 | ||
2112 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2113 | if (!omc) { | |
0445637d | 2114 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2115 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2116 | msg->size); |
638a19b0 JR |
2117 | return OFPERR_OFPBRC_BAD_LEN; |
2118 | } | |
2119 | ||
2120 | ofpbuf_clear(bands); | |
2121 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2122 | &mc->n_bands, bands); | |
2123 | if (err) { | |
2124 | return err; | |
2125 | } | |
2126 | mc->meter_id = ntohl(omc->meter_id); | |
2127 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2128 | mc->bands = bands->data; |
638a19b0 JR |
2129 | |
2130 | return 0; | |
2131 | } | |
2132 | ||
2133 | static enum ofperr | |
2134 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2135 | struct ofpbuf *bands) | |
2136 | { | |
2137 | const struct ofp13_meter_band_stats *ombs; | |
2138 | struct ofputil_meter_band_stats *mbs; | |
2139 | uint16_t n, i; | |
2140 | ||
0445637d JR |
2141 | ombs = ofpbuf_try_pull(msg, len); |
2142 | if (!ombs) { | |
2143 | return OFPERR_OFPBRC_BAD_LEN; | |
2144 | } | |
2145 | ||
638a19b0 JR |
2146 | n = len / sizeof *ombs; |
2147 | if (len != n * sizeof *ombs) { | |
2148 | return OFPERR_OFPBRC_BAD_LEN; | |
2149 | } | |
2150 | ||
638a19b0 JR |
2151 | mbs = ofpbuf_put_uninit(bands, len); |
2152 | ||
2153 | for (i = 0; i < n; ++i) { | |
2154 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2155 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2156 | } | |
2157 | *n_bands = n; | |
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2162 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2163 | * decoded into 'bands'. | |
2164 | * | |
2165 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2166 | * message. Calling this function multiple times for a single 'msg' iterates | |
2167 | * through the replies. 'bands' is cleared for each reply. | |
2168 | * | |
2169 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2170 | * otherwise a positive errno value. */ | |
2171 | int | |
2172 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2173 | struct ofputil_meter_stats *ms, | |
2174 | struct ofpbuf *bands) | |
2175 | { | |
2176 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2177 | enum ofperr err; |
2178 | ||
2179 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2180 | if (!msg->header) { |
638a19b0 JR |
2181 | ofpraw_pull_assert(msg); |
2182 | } | |
2183 | ||
6fd6ed71 | 2184 | if (!msg->size) { |
638a19b0 JR |
2185 | return EOF; |
2186 | } | |
2187 | ||
2188 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2189 | if (!oms) { | |
0445637d | 2190 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2191 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2192 | msg->size); |
638a19b0 JR |
2193 | return OFPERR_OFPBRC_BAD_LEN; |
2194 | } | |
638a19b0 JR |
2195 | |
2196 | ofpbuf_clear(bands); | |
0445637d JR |
2197 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2198 | &ms->n_bands, bands); | |
638a19b0 JR |
2199 | if (err) { |
2200 | return err; | |
2201 | } | |
2202 | ms->meter_id = ntohl(oms->meter_id); | |
2203 | ms->flow_count = ntohl(oms->flow_count); | |
2204 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2205 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2206 | ms->duration_sec = ntohl(oms->duration_sec); | |
2207 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2208 | ms->bands = bands->data; |
638a19b0 JR |
2209 | |
2210 | return 0; | |
2211 | } | |
2212 | ||
2213 | void | |
2214 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2215 | struct ofputil_meter_features *mf) | |
2216 | { | |
2217 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2218 | ||
2219 | mf->max_meters = ntohl(omf->max_meter); | |
2220 | mf->band_types = ntohl(omf->band_types); | |
2221 | mf->capabilities = ntohl(omf->capabilities); | |
2222 | mf->max_bands = omf->max_bands; | |
2223 | mf->max_color = omf->max_color; | |
2224 | } | |
2225 | ||
2226 | struct ofpbuf * | |
2227 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2228 | const struct ofp_header *request) | |
2229 | { | |
2230 | struct ofpbuf *reply; | |
2231 | struct ofp13_meter_features *omf; | |
2232 | ||
2233 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2234 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2235 | ||
2236 | omf->max_meter = htonl(mf->max_meters); | |
2237 | omf->band_types = htonl(mf->band_types); | |
2238 | omf->capabilities = htonl(mf->capabilities); | |
2239 | omf->max_bands = mf->max_bands; | |
2240 | omf->max_color = mf->max_color; | |
2241 | ||
2242 | return reply; | |
2243 | } | |
2244 | ||
2245 | struct ofpbuf * | |
2246 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2247 | const struct ofputil_meter_mod *mm) | |
2248 | { | |
2249 | struct ofpbuf *msg; | |
2250 | ||
2251 | struct ofp13_meter_mod *omm; | |
2252 | ||
2253 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2254 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2255 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2256 | omm->command = htons(mm->command); | |
2257 | if (mm->command != OFPMC13_DELETE) { | |
2258 | omm->flags = htons(mm->meter.flags); | |
2259 | } | |
2260 | omm->meter_id = htonl(mm->meter.meter_id); | |
2261 | ||
2262 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2263 | ||
2264 | ofpmsg_update_length(msg); | |
2265 | return msg; | |
2266 | } | |
2267 | ||
aa6305ea SH |
2268 | static ovs_be16 |
2269 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2270 | enum ofputil_protocol protocol) | |
2271 | { | |
2272 | return htons(protocol & OFPUTIL_P_TID | |
2273 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2274 | : fm->command); | |
2275 | } | |
2276 | ||
2e4f5fcf | 2277 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2278 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2279 | struct ofpbuf * |
a9a2da38 | 2280 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2281 | enum ofputil_protocol protocol) |
2e4f5fcf | 2282 | { |
0fb88c18 BP |
2283 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2284 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2285 | struct ofpbuf *msg; |
2286 | ||
27527aa0 | 2287 | switch (protocol) { |
75fa58f8 | 2288 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2289 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2290 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2291 | case OFPUTIL_P_OF14_OXM: |
2292 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2293 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2294 | int tailroom; |
aa6305ea | 2295 | |
75fa58f8 | 2296 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2297 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2298 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2299 | if ((protocol == OFPUTIL_P_OF11_STD |
2300 | && (fm->command == OFPFC_MODIFY || | |
2301 | fm->command == OFPFC_MODIFY_STRICT) | |
2302 | && fm->cookie_mask == htonll(0)) | |
2303 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2304 | ofm->cookie = fm->new_cookie; |
2305 | } else { | |
ba5cc068 | 2306 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2307 | } |
aa6305ea | 2308 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2309 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2310 | || (protocol != OFPUTIL_P_OF11_STD |
2311 | && (fm->command == OFPFC_DELETE || | |
2312 | fm->command == OFPFC_DELETE_STRICT))) { | |
2313 | ofm->table_id = fm->table_id; | |
2314 | } else { | |
2315 | ofm->table_id = 0; | |
2316 | } | |
aa6305ea SH |
2317 | ofm->command = fm->command; |
2318 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2319 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2320 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2321 | ofm->buffer_id = htonl(fm->buffer_id); |
2322 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2323 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2324 | ofm->flags = raw_flags; |
ca26eb44 RB |
2325 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2326 | ofm->importance = htons(fm->importance); | |
2327 | } else { | |
2328 | ofm->importance = 0; | |
2329 | } | |
75fa58f8 | 2330 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2331 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2332 | version); | |
aa6305ea SH |
2333 | break; |
2334 | } | |
2335 | ||
85813857 BP |
2336 | case OFPUTIL_P_OF10_STD: |
2337 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2338 | struct ofp10_flow_mod *ofm; |
2339 | ||
982697a4 BP |
2340 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2341 | fm->ofpacts_len); | |
2342 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2343 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2344 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2345 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2346 | ofm->idle_timeout = htons(fm->idle_timeout); |
2347 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2348 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2349 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2350 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2351 | ofm->flags = raw_flags; |
e3f8f887 JR |
2352 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2353 | version); | |
27527aa0 | 2354 | break; |
3f192f23 | 2355 | } |
2e4f5fcf | 2356 | |
85813857 BP |
2357 | case OFPUTIL_P_OF10_NXM: |
2358 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2359 | struct nx_flow_mod *nfm; |
2360 | int match_len; | |
2361 | ||
982697a4 BP |
2362 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2363 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2364 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2365 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2366 | nfm->cookie = fm->new_cookie; |
81a76618 | 2367 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2368 | nfm = msg->msg; |
2e4f5fcf BP |
2369 | nfm->idle_timeout = htons(fm->idle_timeout); |
2370 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2371 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2372 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2373 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2374 | nfm->flags = raw_flags; |
2e4f5fcf | 2375 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2376 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2377 | version); | |
27527aa0 | 2378 | break; |
3f192f23 | 2379 | } |
27527aa0 BP |
2380 | |
2381 | default: | |
428b2edd | 2382 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2383 | } |
2384 | ||
982697a4 | 2385 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2386 | return msg; |
2387 | } | |
2388 | ||
90bf1e07 | 2389 | static enum ofperr |
0157ad3a SH |
2390 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2391 | const struct ofp10_flow_stats_request *ofsr, | |
2392 | bool aggregate) | |
2e4f5fcf | 2393 | { |
2e4f5fcf | 2394 | fsr->aggregate = aggregate; |
81a76618 | 2395 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2396 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2397 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2398 | fsr->table_id = ofsr->table_id; |
e729e793 | 2399 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2400 | |
2401 | return 0; | |
2402 | } | |
2403 | ||
0157ad3a SH |
2404 | static enum ofperr |
2405 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2406 | struct ofpbuf *b, bool aggregate) | |
2407 | { | |
2408 | const struct ofp11_flow_stats_request *ofsr; | |
2409 | enum ofperr error; | |
2410 | ||
2411 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2412 | fsr->aggregate = aggregate; | |
2413 | fsr->table_id = ofsr->table_id; | |
2414 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2415 | if (error) { | |
2416 | return error; | |
2417 | } | |
7395c052 | 2418 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2419 | fsr->cookie = ofsr->cookie; |
2420 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2421 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2422 | if (error) { |
2423 | return error; | |
2424 | } | |
2425 | ||
2426 | return 0; | |
2427 | } | |
2428 | ||
90bf1e07 | 2429 | static enum ofperr |
81d1ea94 | 2430 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2431 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2432 | { |
2433 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2434 | enum ofperr error; |
2e4f5fcf | 2435 | |
982697a4 | 2436 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2437 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2438 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2439 | if (error) { |
2440 | return error; | |
2441 | } | |
6fd6ed71 | 2442 | if (b->size) { |
90bf1e07 | 2443 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2444 | } |
2445 | ||
2446 | fsr->aggregate = aggregate; | |
4e022ec0 | 2447 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2448 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2449 | fsr->table_id = nfsr->table_id; |
2450 | ||
2451 | return 0; | |
2452 | } | |
2453 | ||
e8f9a7bb VG |
2454 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2455 | * 'port', suitable for OpenFlow version 'version'. */ | |
2456 | struct ofpbuf * | |
2457 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2458 | ofp_port_t port) | |
2459 | { | |
2460 | struct ofpbuf *request; | |
2461 | ||
2462 | if (version == OFP10_VERSION) { | |
2463 | struct ofp10_queue_get_config_request *qgcr10; | |
2464 | ||
2465 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2466 | version, 0); | |
2467 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2468 | qgcr10->port = htons(ofp_to_u16(port)); | |
2469 | } else { | |
2470 | struct ofp11_queue_get_config_request *qgcr11; | |
2471 | ||
2472 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2473 | version, 0); | |
2474 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2475 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2476 | } | |
2477 | ||
2478 | return request; | |
2479 | } | |
2480 | ||
2481 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2482 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2483 | * code. */ | |
2484 | enum ofperr | |
2485 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2486 | ofp_port_t *port) | |
2487 | { | |
2488 | const struct ofp10_queue_get_config_request *qgcr10; | |
2489 | const struct ofp11_queue_get_config_request *qgcr11; | |
2490 | enum ofpraw raw; | |
2491 | struct ofpbuf b; | |
2492 | ||
2493 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2494 | raw = ofpraw_pull_assert(&b); | |
2495 | ||
2496 | switch ((int) raw) { | |
2497 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2498 | qgcr10 = b.data; |
e8f9a7bb | 2499 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
56085be5 | 2500 | break; |
e8f9a7bb VG |
2501 | |
2502 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2503 | qgcr11 = b.data; |
56085be5 BP |
2504 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2505 | if (error || *port == OFPP_ANY) { | |
2506 | return error; | |
2507 | } | |
2508 | break; | |
2509 | ||
2510 | default: | |
2511 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2512 | } |
2513 | ||
56085be5 BP |
2514 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2515 | ? 0 | |
2516 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2517 | } |
2518 | ||
2519 | /* Constructs and returns the beginning of a reply to | |
2520 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2521 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2522 | struct ofpbuf * | |
2523 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2524 | { | |
2525 | struct ofp10_queue_get_config_reply *qgcr10; | |
2526 | struct ofp11_queue_get_config_reply *qgcr11; | |
2527 | struct ofpbuf *reply; | |
2528 | enum ofperr error; | |
2529 | struct ofpbuf b; | |
2530 | enum ofpraw raw; | |
2531 | ofp_port_t port; | |
2532 | ||
2533 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2534 | ovs_assert(!error); | |
2535 | ||
2536 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2537 | raw = ofpraw_pull_assert(&b); | |
2538 | ||
2539 | switch ((int) raw) { | |
2540 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2541 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2542 | oh, 0); | |
2543 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2544 | qgcr10->port = htons(ofp_to_u16(port)); | |
2545 | break; | |
2546 | ||
2547 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2548 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2549 | oh, 0); | |
2550 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2551 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2552 | break; | |
2553 | ||
2554 | default: | |
428b2edd | 2555 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2556 | } |
2557 | ||
2558 | return reply; | |
2559 | } | |
2560 | ||
2561 | static void | |
d2e5fa1f BP |
2562 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2563 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2564 | { |
2565 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2566 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2567 | |
2568 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2569 | oqpr->prop_header.property = htons(property); | |
2570 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2571 | oqpr->rate = htons(rate); | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | /* Appends a queue description for 'queue_id' to the | |
2576 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2577 | void | |
2578 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2579 | const struct ofputil_queue_config *oqc) | |
2580 | { | |
6fd6ed71 | 2581 | const struct ofp_header *oh = reply->data; |
e8f9a7bb VG |
2582 | size_t start_ofs, len_ofs; |
2583 | ovs_be16 *len; | |
2584 | ||
6fd6ed71 | 2585 | start_ofs = reply->size; |
e8f9a7bb VG |
2586 | if (oh->version < OFP12_VERSION) { |
2587 | struct ofp10_packet_queue *opq10; | |
2588 | ||
2589 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2590 | opq10->queue_id = htonl(oqc->queue_id); | |
6fd6ed71 | 2591 | len_ofs = (char *) &opq10->len - (char *) reply->data; |
e8f9a7bb | 2592 | } else { |
e8f9a7bb | 2593 | struct ofp12_packet_queue *opq12; |
e8f9a7bb VG |
2594 | |
2595 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
56085be5 | 2596 | opq12->port = ofputil_port_to_ofp11(oqc->port); |
e8f9a7bb | 2597 | opq12->queue_id = htonl(oqc->queue_id); |
6fd6ed71 | 2598 | len_ofs = (char *) &opq12->len - (char *) reply->data; |
e8f9a7bb VG |
2599 | } |
2600 | ||
d2e5fa1f BP |
2601 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, oqc->min_rate); |
2602 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, oqc->max_rate); | |
e8f9a7bb VG |
2603 | |
2604 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2605 | *len = htons(reply->size - start_ofs); |
e8f9a7bb VG |
2606 | } |
2607 | ||
2608 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2609 | * stores in '*port' the port that the reply is about. The caller may call | |
2610 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2611 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2612 | * ofperr.*/ | |
2613 | enum ofperr | |
2614 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2615 | { | |
2616 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2617 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2618 | enum ofpraw raw; | |
2619 | ||
2620 | raw = ofpraw_pull_assert(reply); | |
2621 | switch ((int) raw) { | |
2622 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2623 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2624 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2625 | return 0; | |
2626 | ||
2627 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2628 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2629 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2630 | } | |
2631 | ||
428b2edd | 2632 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2633 | } |
2634 | ||
2635 | static enum ofperr | |
d2e5fa1f BP |
2636 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2637 | uint16_t *rate) | |
e8f9a7bb | 2638 | { |
d2e5fa1f | 2639 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2640 | |
2641 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2642 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2643 | *rate = ntohs(oqpr->rate); |
2644 | return 0; | |
2645 | } else { | |
2646 | return OFPERR_OFPBRC_BAD_LEN; | |
2647 | } | |
2648 | } | |
2649 | ||
2650 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2651 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2652 | * must already have pulled off the main header. | |
2653 | * | |
2654 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2655 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2656 | * problem decoding 'reply'. */ | |
2657 | int | |
2658 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2659 | struct ofputil_queue_config *queue) | |
2660 | { | |
2661 | const struct ofp_header *oh; | |
2662 | unsigned int opq_len; | |
2663 | unsigned int len; | |
2664 | ||
6fd6ed71 | 2665 | if (!reply->size) { |
e8f9a7bb VG |
2666 | return EOF; |
2667 | } | |
2668 | ||
2669 | queue->min_rate = UINT16_MAX; | |
2670 | queue->max_rate = UINT16_MAX; | |
2671 | ||
6fd6ed71 | 2672 | oh = reply->header; |
e8f9a7bb VG |
2673 | if (oh->version < OFP12_VERSION) { |
2674 | const struct ofp10_packet_queue *opq10; | |
2675 | ||
2676 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2677 | if (!opq10) { | |
2678 | return OFPERR_OFPBRC_BAD_LEN; | |
2679 | } | |
2680 | queue->queue_id = ntohl(opq10->queue_id); | |
2681 | len = ntohs(opq10->len); | |
2682 | opq_len = sizeof *opq10; | |
2683 | } else { | |
2684 | const struct ofp12_packet_queue *opq12; | |
2685 | ||
2686 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2687 | if (!opq12) { | |
2688 | return OFPERR_OFPBRC_BAD_LEN; | |
2689 | } | |
2690 | queue->queue_id = ntohl(opq12->queue_id); | |
2691 | len = ntohs(opq12->len); | |
2692 | opq_len = sizeof *opq12; | |
2693 | } | |
2694 | ||
6fd6ed71 | 2695 | if (len < opq_len || len > reply->size + opq_len || len % 8) { |
e8f9a7bb VG |
2696 | return OFPERR_OFPBRC_BAD_LEN; |
2697 | } | |
2698 | len -= opq_len; | |
2699 | ||
2700 | while (len > 0) { | |
d2e5fa1f | 2701 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2702 | unsigned int property; |
2703 | unsigned int prop_len; | |
2704 | enum ofperr error = 0; | |
2705 | ||
2706 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2707 | prop_len = ntohs(hdr->len); | |
6fd6ed71 | 2708 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { |
e8f9a7bb VG |
2709 | return OFPERR_OFPBRC_BAD_LEN; |
2710 | } | |
2711 | ||
2712 | property = ntohs(hdr->property); | |
2713 | switch (property) { | |
d2e5fa1f BP |
2714 | case OFPQT10_MIN_RATE: |
2715 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2716 | break; |
2717 | ||
d2e5fa1f BP |
2718 | case OFPQT11_MAX_RATE: |
2719 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2720 | break; |
2721 | ||
2722 | default: | |
2723 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2724 | break; | |
2725 | } | |
2726 | if (error) { | |
2727 | return error; | |
2728 | } | |
2729 | ||
2730 | ofpbuf_pull(reply, prop_len); | |
2731 | len -= prop_len; | |
2732 | } | |
2733 | return 0; | |
2734 | } | |
2735 | ||
2e4f5fcf | 2736 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2737 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2738 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2739 | enum ofperr |
81d1ea94 | 2740 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2741 | const struct ofp_header *oh) |
2e4f5fcf | 2742 | { |
982697a4 | 2743 | enum ofpraw raw; |
2e4f5fcf | 2744 | struct ofpbuf b; |
2e4f5fcf | 2745 | |
2013493b | 2746 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2747 | raw = ofpraw_pull_assert(&b); |
2748 | switch ((int) raw) { | |
cfc23141 | 2749 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2750 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2751 | |
617da9cd | 2752 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2753 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2754 | |
2755 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2756 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2757 | |
617da9cd SH |
2758 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2759 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2760 | ||
982697a4 BP |
2761 | case OFPRAW_NXST_FLOW_REQUEST: |
2762 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2763 | |
982697a4 BP |
2764 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2765 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2766 | |
2767 | default: | |
2768 | /* Hey, the caller lied. */ | |
428b2edd | 2769 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2770 | } |
2771 | } | |
2772 | ||
2773 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2774 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2775 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2776 | struct ofpbuf * |
81d1ea94 | 2777 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2778 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2779 | { |
2780 | struct ofpbuf *msg; | |
982697a4 | 2781 | enum ofpraw raw; |
2e4f5fcf | 2782 | |
27527aa0 | 2783 | switch (protocol) { |
75fa58f8 | 2784 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2785 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2786 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2787 | case OFPUTIL_P_OF14_OXM: |
2788 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2789 | struct ofp11_flow_stats_request *ofsr; |
2790 | ||
2791 | raw = (fsr->aggregate | |
617da9cd | 2792 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2793 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2794 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2795 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2796 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2797 | ofsr->table_id = fsr->table_id; | |
2798 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2799 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2800 | ofsr->cookie = fsr->cookie; |
2801 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2802 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2803 | break; |
2804 | } | |
2805 | ||
85813857 BP |
2806 | case OFPUTIL_P_OF10_STD: |
2807 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2808 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2809 | |
982697a4 | 2810 | raw = (fsr->aggregate |
617da9cd | 2811 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2812 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2813 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2814 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2815 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2816 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2817 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2818 | break; |
2819 | } | |
2820 | ||
85813857 BP |
2821 | case OFPUTIL_P_OF10_NXM: |
2822 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2823 | struct nx_flow_stats_request *nfsr; |
2824 | int match_len; | |
2825 | ||
982697a4 BP |
2826 | raw = (fsr->aggregate |
2827 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2828 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2829 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2830 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2831 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2832 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2833 | |
6fd6ed71 | 2834 | nfsr = msg->msg; |
4e022ec0 | 2835 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2836 | nfsr->match_len = htons(match_len); |
2837 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2838 | break; |
2839 | } | |
2840 | ||
2841 | default: | |
428b2edd | 2842 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2843 | } |
2844 | ||
2845 | return msg; | |
2846 | } | |
d1e2cf21 | 2847 | |
4ffd1b43 | 2848 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2849 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2850 | * |
2851 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2852 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2853 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2854 | * pointers null and not modify them between calls. | |
2855 | * | |
f27f2134 BP |
2856 | * Most switches don't send the values needed to populate fs->idle_age and |
2857 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2858 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2859 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2860 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2861 | * | |
f25d0cf3 BP |
2862 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2863 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2864 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2865 | * | |
4ffd1b43 BP |
2866 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2867 | * otherwise a positive errno value. */ | |
2868 | int | |
2869 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2870 | struct ofpbuf *msg, |
f25d0cf3 BP |
2871 | bool flow_age_extension, |
2872 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2873 | { |
0fb88c18 | 2874 | const struct ofp_header *oh; |
8f2cded4 | 2875 | size_t instructions_len; |
982697a4 BP |
2876 | enum ofperr error; |
2877 | enum ofpraw raw; | |
4ffd1b43 | 2878 | |
6fd6ed71 | 2879 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2880 | : ofpraw_pull(&raw, msg)); |
2881 | if (error) { | |
2882 | return error; | |
4ffd1b43 | 2883 | } |
6fd6ed71 | 2884 | oh = msg->header; |
4ffd1b43 | 2885 | |
6fd6ed71 | 2886 | if (!msg->size) { |
4ffd1b43 | 2887 | return EOF; |
2e1ae200 JR |
2888 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2889 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2890 | const struct ofp11_flow_stats *ofs; |
2891 | size_t length; | |
2892 | uint16_t padded_match_len; | |
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); |
6ec5f0c5 SH |
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); |
6ec5f0c5 SH |
2905 | return EINVAL; |
2906 | } | |
2907 | ||
81a76618 | 2908 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2909 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2910 | return EINVAL; | |
2911 | } | |
8f2cded4 | 2912 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2913 | |
81a76618 | 2914 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2915 | fs->table_id = ofs->table_id; |
2916 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2917 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2918 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2919 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2920 | if (oh->version >= OFP14_VERSION) { |
2921 | fs->importance = ntohs(ofs->importance); | |
2922 | } else { | |
2923 | fs->importance = 0; | |
2924 | } | |
0fb88c18 BP |
2925 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2926 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2927 | &fs->flags); | |
2928 | if (error) { | |
2929 | return error; | |
2930 | } | |
2931 | } else { | |
2932 | fs->flags = 0; | |
2933 | } | |
6ec5f0c5 SH |
2934 | fs->idle_age = -1; |
2935 | fs->hard_age = -1; | |
2936 | fs->cookie = ofs->cookie; | |
2937 | fs->packet_count = ntohll(ofs->packet_count); | |
2938 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2939 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2940 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2941 | size_t length; |
2942 | ||
2943 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2944 | if (!ofs) { | |
437d0d22 | 2945 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2946 | "bytes at end", msg->size); |
4ffd1b43 BP |
2947 | return EINVAL; |
2948 | } | |
2949 | ||
2950 | length = ntohs(ofs->length); | |
2951 | if (length < sizeof *ofs) { | |
2952 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2953 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2954 | return EINVAL; |
2955 | } | |
8f2cded4 | 2956 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2957 | |
2958 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2959 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2960 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2961 | fs->table_id = ofs->table_id; |
2962 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2963 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2964 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2965 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2966 | fs->importance = 0; |
f27f2134 BP |
2967 | fs->idle_age = -1; |
2968 | fs->hard_age = -1; | |
4ffd1b43 BP |
2969 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2970 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2971 | fs->flags = 0; |
982697a4 | 2972 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2973 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2974 | size_t match_len, length; |
4ffd1b43 BP |
2975 | |
2976 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2977 | if (!nfs) { | |
437d0d22 | 2978 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2979 | "bytes at end", msg->size); |
4ffd1b43 BP |
2980 | return EINVAL; |
2981 | } | |
2982 | ||
2983 | length = ntohs(nfs->length); | |
2984 | match_len = ntohs(nfs->match_len); | |
2985 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2986 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2987 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2988 | return EINVAL; |
2989 | } | |
81a76618 | 2990 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2991 | return EINVAL; |
2992 | } | |
8f2cded4 | 2993 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2994 | |
2995 | fs->cookie = nfs->cookie; | |
2996 | fs->table_id = nfs->table_id; | |
2997 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2998 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2999 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
3000 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
3001 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 3002 | fs->importance = 0; |
f27f2134 BP |
3003 | fs->idle_age = -1; |
3004 | fs->hard_age = -1; | |
3005 | if (flow_age_extension) { | |
3006 | if (nfs->idle_age) { | |
3007 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
3008 | } | |
3009 | if (nfs->hard_age) { | |
3010 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
3011 | } | |
3012 | } | |
4ffd1b43 BP |
3013 | fs->packet_count = ntohll(nfs->packet_count); |
3014 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 3015 | fs->flags = 0; |
4ffd1b43 | 3016 | } else { |
428b2edd | 3017 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
3018 | } |
3019 | ||
8f2cded4 BP |
3020 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
3021 | ofpacts)) { | |
3022 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
3023 | return EINVAL; | |
3024 | } | |
6fd6ed71 PS |
3025 | fs->ofpacts = ofpacts->data; |
3026 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3027 | |
4ffd1b43 BP |
3028 | return 0; |
3029 | } | |
3030 | ||
5e9d0469 BP |
3031 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3032 | * | |
3033 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3034 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3035 | static uint64_t | |
3036 | unknown_to_zero(uint64_t count) | |
3037 | { | |
3038 | return count != UINT64_MAX ? count : 0; | |
3039 | } | |
3040 | ||
349adfb2 BP |
3041 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3042 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3043 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3044 | void |
3045 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 3046 | struct ovs_list *replies) |
349adfb2 | 3047 | { |
f25d0cf3 | 3048 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 3049 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3050 | enum ofp_version version = ofpmp_version(replies); |
3051 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3052 | |
2e1ae200 | 3053 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3054 | struct ofp11_flow_stats *ofs; |
3055 | ||
3056 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3057 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3058 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3059 | version); | |
22a86f18 SH |
3060 | |
3061 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3062 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3063 | ofs->table_id = fs->table_id; |
3064 | ofs->pad = 0; | |
3065 | ofs->duration_sec = htonl(fs->duration_sec); | |
3066 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3067 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3068 | ofs->idle_timeout = htons(fs->idle_timeout); |
3069 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3070 | if (version >= OFP14_VERSION) { |
3071 | ofs->importance = htons(fs->importance); | |
3072 | } else { | |
3073 | ofs->importance = 0; | |
3074 | } | |
0fb88c18 | 3075 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3076 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3077 | } else { |
3078 | ofs->flags = 0; | |
3079 | } | |
22a86f18 SH |
3080 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3081 | ofs->cookie = fs->cookie; | |
3082 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3083 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3084 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3085 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3086 | |
1a59dc2c | 3087 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3088 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3089 | version); | |
1a59dc2c | 3090 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3091 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3092 | ofs->table_id = fs->table_id; |
3093 | ofs->pad = 0; | |
81a76618 | 3094 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3095 | ofs->duration_sec = htonl(fs->duration_sec); |
3096 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3097 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3098 | ofs->idle_timeout = htons(fs->idle_timeout); |
3099 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3100 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3101 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3102 | put_32aligned_be64(&ofs->packet_count, |
3103 | htonll(unknown_to_zero(fs->packet_count))); | |
3104 | put_32aligned_be64(&ofs->byte_count, | |
3105 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3106 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3107 | struct nx_flow_stats *nfs; |
1a59dc2c | 3108 | int match_len; |
349adfb2 | 3109 | |
1a59dc2c | 3110 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3111 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3112 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3113 | version); | |
1a59dc2c | 3114 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3115 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3116 | nfs->table_id = fs->table_id; |
3117 | nfs->pad = 0; | |
3118 | nfs->duration_sec = htonl(fs->duration_sec); | |
3119 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3120 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3121 | nfs->idle_timeout = htons(fs->idle_timeout); |
3122 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3123 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3124 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3125 | : UINT16_MAX); | |
3126 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3127 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3128 | : UINT16_MAX); | |
1a59dc2c | 3129 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3130 | nfs->cookie = fs->cookie; |
3131 | nfs->packet_count = htonll(fs->packet_count); | |
3132 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3133 | } else { |
428b2edd | 3134 | OVS_NOT_REACHED(); |
349adfb2 | 3135 | } |
f25d0cf3 | 3136 | |
982697a4 | 3137 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3138 | } |
3139 | ||
76c93b22 | 3140 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3141 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3142 | struct ofpbuf * |
3143 | ofputil_encode_aggregate_stats_reply( | |
3144 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3145 | const struct ofp_header *request) |
76c93b22 | 3146 | { |
a814ba0f BP |
3147 | struct ofp_aggregate_stats_reply *asr; |
3148 | uint64_t packet_count; | |
3149 | uint64_t byte_count; | |
76c93b22 | 3150 | struct ofpbuf *msg; |
982697a4 | 3151 | enum ofpraw raw; |
76c93b22 | 3152 | |
982697a4 | 3153 | ofpraw_decode(&raw, request); |
617da9cd | 3154 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3155 | packet_count = unknown_to_zero(stats->packet_count); |
3156 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3157 | } else { |
a814ba0f BP |
3158 | packet_count = stats->packet_count; |
3159 | byte_count = stats->byte_count; | |
76c93b22 BP |
3160 | } |
3161 | ||
a814ba0f BP |
3162 | msg = ofpraw_alloc_stats_reply(request, 0); |
3163 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3164 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3165 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3166 | asr->flow_count = htonl(stats->flow_count); | |
3167 | ||
76c93b22 BP |
3168 | return msg; |
3169 | } | |
3170 | ||
982697a4 BP |
3171 | enum ofperr |
3172 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3173 | const struct ofp_header *reply) | |
3174 | { | |
a814ba0f | 3175 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3176 | struct ofpbuf msg; |
982697a4 BP |
3177 | |
3178 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3179 | ofpraw_pull_assert(&msg); |
3180 | ||
6fd6ed71 | 3181 | asr = msg.msg; |
a814ba0f BP |
3182 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3183 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3184 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3185 | |
3186 | return 0; | |
3187 | } | |
3188 | ||
b78f6b77 BP |
3189 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3190 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3191 | * an OpenFlow error code. */ | |
90bf1e07 | 3192 | enum ofperr |
9b045a0c | 3193 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3194 | const struct ofp_header *oh) |
9b045a0c | 3195 | { |
982697a4 BP |
3196 | enum ofpraw raw; |
3197 | struct ofpbuf b; | |
9b045a0c | 3198 | |
982697a4 BP |
3199 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3200 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3201 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3202 | const struct ofp12_flow_removed *ofr; | |
3203 | enum ofperr error; | |
3204 | ||
3205 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3206 | ||
81a76618 | 3207 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3208 | if (error) { |
3209 | return error; | |
3210 | } | |
3211 | ||
81a76618 | 3212 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3213 | fr->cookie = ofr->cookie; |
3214 | fr->reason = ofr->reason; | |
95216219 | 3215 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3216 | fr->duration_sec = ntohl(ofr->duration_sec); |
3217 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3218 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3219 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3220 | fr->packet_count = ntohll(ofr->packet_count); | |
3221 | fr->byte_count = ntohll(ofr->byte_count); | |
3222 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3223 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3224 | |
982697a4 BP |
3225 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3226 | ||
81a76618 BP |
3227 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3228 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3229 | fr->cookie = ofr->cookie; |
3230 | fr->reason = ofr->reason; | |
95216219 | 3231 | fr->table_id = 255; |
9b045a0c BP |
3232 | fr->duration_sec = ntohl(ofr->duration_sec); |
3233 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3234 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3235 | fr->hard_timeout = 0; |
9b045a0c BP |
3236 | fr->packet_count = ntohll(ofr->packet_count); |
3237 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3238 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3239 | struct nx_flow_removed *nfr; |
c2725b60 | 3240 | enum ofperr error; |
9b045a0c | 3241 | |
9b045a0c | 3242 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3243 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3244 | NULL, NULL); | |
9b045a0c BP |
3245 | if (error) { |
3246 | return error; | |
3247 | } | |
6fd6ed71 | 3248 | if (b.size) { |
90bf1e07 | 3249 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3250 | } |
3251 | ||
81a76618 | 3252 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3253 | fr->cookie = nfr->cookie; |
3254 | fr->reason = nfr->reason; | |
745bfd5e | 3255 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3256 | fr->duration_sec = ntohl(nfr->duration_sec); |
3257 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3258 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3259 | fr->hard_timeout = 0; |
9b045a0c BP |
3260 | fr->packet_count = ntohll(nfr->packet_count); |
3261 | fr->byte_count = ntohll(nfr->byte_count); | |
3262 | } else { | |
428b2edd | 3263 | OVS_NOT_REACHED(); |
9b045a0c BP |
3264 | } |
3265 | ||
3266 | return 0; | |
3267 | } | |
3268 | ||
588cd7b5 | 3269 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3270 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3271 | * message. */ |
3272 | struct ofpbuf * | |
3273 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3274 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3275 | { |
3276 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3277 | enum ofp_flow_removed_reason reason = fr->reason; |
3278 | ||
3279 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3280 | reason = OFPRR_DELETE; | |
3281 | } | |
588cd7b5 | 3282 | |
27527aa0 | 3283 | switch (protocol) { |
75fa58f8 | 3284 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3285 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3286 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3287 | case OFPUTIL_P_OF14_OXM: |
3288 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3289 | struct ofp12_flow_removed *ofr; |
3290 | ||
3291 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3292 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3293 | htonl(0), |
3294 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3295 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3296 | ofr->cookie = fr->cookie; | |
81a76618 | 3297 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3298 | ofr->reason = reason; |
95216219 | 3299 | ofr->table_id = fr->table_id; |
83974732 SH |
3300 | ofr->duration_sec = htonl(fr->duration_sec); |
3301 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3302 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3303 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3304 | ofr->packet_count = htonll(fr->packet_count); |
3305 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3306 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3307 | break; |
3308 | } | |
3309 | ||
85813857 BP |
3310 | case OFPUTIL_P_OF10_STD: |
3311 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3312 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3313 | |
982697a4 BP |
3314 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3315 | htonl(0), 0); | |
3316 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3317 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3318 | ofr->cookie = fr->cookie; |
81a76618 | 3319 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3320 | ofr->reason = reason; |
588cd7b5 BP |
3321 | ofr->duration_sec = htonl(fr->duration_sec); |
3322 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3323 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3324 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3325 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3326 | break; |
3327 | } | |
3328 | ||
85813857 BP |
3329 | case OFPUTIL_P_OF10_NXM: |
3330 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3331 | struct nx_flow_removed *nfr; |
3332 | int match_len; | |
3333 | ||
982697a4 BP |
3334 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3335 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3336 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3337 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3338 | |
6fd6ed71 | 3339 | nfr = msg->msg; |
588cd7b5 | 3340 | nfr->cookie = fr->cookie; |
81a76618 | 3341 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3342 | nfr->reason = reason; |
745bfd5e | 3343 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3344 | nfr->duration_sec = htonl(fr->duration_sec); |
3345 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3346 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3347 | nfr->match_len = htons(match_len); | |
3348 | nfr->packet_count = htonll(fr->packet_count); | |
3349 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3350 | break; |
3351 | } | |
3352 | ||
3353 | default: | |
428b2edd | 3354 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3355 | } |
3356 | ||
3357 | return msg; | |
3358 | } | |
3359 | ||
f7cc6bd8 | 3360 | enum ofperr |
65120a8a EJ |
3361 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3362 | const struct ofp_header *oh) | |
3363 | { | |
982697a4 BP |
3364 | enum ofpraw raw; |
3365 | struct ofpbuf b; | |
65120a8a | 3366 | |
65120a8a | 3367 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3368 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3369 | |
982697a4 BP |
3370 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3371 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3372 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3373 | const struct ofp13_packet_in *opi; | |
7cfb9651 | 3374 | int error; |
2e1ae200 JR |
3375 | size_t packet_in_size; |
3376 | ||
3377 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3378 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3379 | } else { | |
3380 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3381 | } | |
7cfb9651 | 3382 | |
2e1ae200 | 3383 | opi = ofpbuf_pull(&b, packet_in_size); |
50dcbd8e | 3384 | error = oxm_pull_match_loose(&b, &pin->flow_metadata); |
7cfb9651 SH |
3385 | if (error) { |
3386 | return error; | |
3387 | } | |
3388 | ||
3389 | if (!ofpbuf_try_pull(&b, 2)) { | |
3390 | return OFPERR_OFPBRC_BAD_LEN; | |
3391 | } | |
3392 | ||
2e1ae200 JR |
3393 | pin->reason = opi->pi.reason; |
3394 | pin->table_id = opi->pi.table_id; | |
3395 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3396 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3397 | |
2e1ae200 JR |
3398 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3399 | pin->cookie = opi->cookie; | |
3400 | } | |
7cfb9651 | 3401 | |
50dcbd8e JG |
3402 | pin->packet = b.data; |
3403 | pin->packet_len = b.size; | |
7cfb9651 | 3404 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3405 | const struct ofp10_packet_in *opi; |
982697a4 | 3406 | |
31a9e63f | 3407 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3408 | |
3409 | pin->packet = opi->data; | |
6fd6ed71 | 3410 | pin->packet_len = b.size; |
65120a8a | 3411 | |
50dcbd8e JG |
3412 | match_init_catchall(&pin->flow_metadata); |
3413 | match_set_in_port(&pin->flow_metadata, u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a EJ |
3414 | pin->reason = opi->reason; |
3415 | pin->buffer_id = ntohl(opi->buffer_id); | |
3416 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3417 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3418 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3419 | ofp_port_t in_port; |
4d197ebb BP |
3420 | enum ofperr error; |
3421 | ||
3422 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3423 | ||
6fd6ed71 PS |
3424 | pin->packet = b.data; |
3425 | pin->packet_len = b.size; | |
4d197ebb BP |
3426 | |
3427 | pin->buffer_id = ntohl(opi->buffer_id); | |
50dcbd8e | 3428 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3429 | if (error) { |
3430 | return error; | |
3431 | } | |
50dcbd8e JG |
3432 | match_init_catchall(&pin->flow_metadata); |
3433 | match_set_in_port(&pin->flow_metadata, in_port); | |
4d197ebb BP |
3434 | pin->total_len = ntohs(opi->total_len); |
3435 | pin->reason = opi->reason; | |
3436 | pin->table_id = opi->table_id; | |
982697a4 | 3437 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3438 | const struct nx_packet_in *npi; |
54834960 EJ |
3439 | int error; |
3440 | ||
54834960 | 3441 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3442 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3443 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3444 | if (error) { |
3445 | return error; | |
3446 | } | |
3447 | ||
3448 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3449 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3450 | } |
3451 | ||
54834960 EJ |
3452 | pin->reason = npi->reason; |
3453 | pin->table_id = npi->table_id; | |
3454 | pin->cookie = npi->cookie; | |
3455 | ||
54834960 EJ |
3456 | pin->buffer_id = ntohl(npi->buffer_id); |
3457 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3458 | |
50dcbd8e JG |
3459 | pin->packet = b.data; |
3460 | pin->packet_len = b.size; | |
65120a8a | 3461 | } else { |
428b2edd | 3462 | OVS_NOT_REACHED(); |
65120a8a EJ |
3463 | } |
3464 | ||
3465 | return 0; | |
3466 | } | |
3467 | ||
0f83fea0 BP |
3468 | static struct ofpbuf * |
3469 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3470 | { | |
3471 | struct ofp10_packet_in *opi; | |
3472 | struct ofpbuf *packet; | |
3473 | ||
3474 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3475 | htonl(0), pin->packet_len); | |
3476 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3477 | opi->total_len = htons(pin->total_len); | |
50dcbd8e | 3478 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
0f83fea0 BP |
3479 | opi->reason = pin->reason; |
3480 | opi->buffer_id = htonl(pin->buffer_id); | |
3481 | ||
3482 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3483 | ||
3484 | return packet; | |
3485 | } | |
3486 | ||
3487 | static struct ofpbuf * | |
3488 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3489 | { | |
3490 | struct nx_packet_in *npi; | |
3491 | struct ofpbuf *packet; | |
0f83fea0 BP |
3492 | size_t match_len; |
3493 | ||
0f83fea0 BP |
3494 | /* The final argument is just an estimate of the space required. */ |
3495 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
50dcbd8e | 3496 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3497 | ofpbuf_put_zeros(packet, sizeof *npi); |
50dcbd8e | 3498 | match_len = nx_put_match(packet, &pin->flow_metadata, 0, 0); |
0f83fea0 BP |
3499 | ofpbuf_put_zeros(packet, 2); |
3500 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3501 | ||
6fd6ed71 | 3502 | npi = packet->msg; |
0f83fea0 BP |
3503 | npi->buffer_id = htonl(pin->buffer_id); |
3504 | npi->total_len = htons(pin->total_len); | |
3505 | npi->reason = pin->reason; | |
3506 | npi->table_id = pin->table_id; | |
3507 | npi->cookie = pin->cookie; | |
3508 | npi->match_len = htons(match_len); | |
3509 | ||
3510 | return packet; | |
3511 | } | |
3512 | ||
4d197ebb BP |
3513 | static struct ofpbuf * |
3514 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3515 | { | |
3516 | struct ofp11_packet_in *opi; | |
3517 | struct ofpbuf *packet; | |
3518 | ||
3519 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3520 | htonl(0), pin->packet_len); | |
3521 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3522 | opi->buffer_id = htonl(pin->buffer_id); | |
50dcbd8e | 3523 | opi->in_port = ofputil_port_to_ofp11(pin->flow_metadata.flow.in_port.ofp_port); |
4d197ebb BP |
3524 | opi->in_phy_port = opi->in_port; |
3525 | opi->total_len = htons(pin->total_len); | |
3526 | opi->reason = pin->reason; | |
3527 | opi->table_id = pin->table_id; | |
3528 | ||
3529 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3530 | ||
3531 | return packet; | |
3532 | } | |
3533 | ||
0f83fea0 BP |
3534 | static struct ofpbuf * |
3535 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3536 | enum ofputil_protocol protocol) | |
3537 | { | |
3538 | struct ofp13_packet_in *opi; | |
0f83fea0 BP |
3539 | enum ofpraw packet_in_raw; |
3540 | enum ofp_version packet_in_version; | |
3541 | size_t packet_in_size; | |
3542 | struct ofpbuf *packet; | |
3543 | ||
3544 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3545 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3546 | packet_in_version = OFP12_VERSION; | |
3547 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3548 | } else { | |
3549 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
b6a3dd9c | 3550 | packet_in_version = ofputil_protocol_to_ofp_version(protocol); |
0f83fea0 BP |
3551 | packet_in_size = sizeof (struct ofp13_packet_in); |
3552 | } | |
3553 | ||
0f83fea0 BP |
3554 | /* The final argument is just an estimate of the space required. */ |
3555 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
50dcbd8e | 3556 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3557 | ofpbuf_put_zeros(packet, packet_in_size); |
50dcbd8e JG |
3558 | oxm_put_match(packet, &pin->flow_metadata, |
3559 | ofputil_protocol_to_ofp_version(protocol)); | |
0f83fea0 BP |
3560 | ofpbuf_put_zeros(packet, 2); |
3561 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3562 | ||
6fd6ed71 | 3563 | opi = packet->msg; |
0f83fea0 BP |
3564 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3565 | opi->pi.total_len = htons(pin->total_len); | |
3566 | opi->pi.reason = pin->reason; | |
3567 | opi->pi.table_id = pin->table_id; | |
b6a3dd9c | 3568 | if (protocol != OFPUTIL_P_OF12_OXM) { |
0f83fea0 BP |
3569 | opi->cookie = pin->cookie; |
3570 | } | |
3571 | ||
3572 | return packet; | |
3573 | } | |
3574 | ||
54834960 EJ |
3575 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3576 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3577 | struct ofpbuf * |
54834960 | 3578 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3579 | enum ofputil_protocol protocol, |
54834960 | 3580 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3581 | { |
54834960 | 3582 | struct ofpbuf *packet; |
ebb57021 | 3583 | |
0f83fea0 BP |
3584 | switch (protocol) { |
3585 | case OFPUTIL_P_OF10_STD: | |
3586 | case OFPUTIL_P_OF10_STD_TID: | |
3587 | case OFPUTIL_P_OF10_NXM: | |
3588 | case OFPUTIL_P_OF10_NXM_TID: | |
3589 | packet = (packet_in_format == NXPIF_NXM | |
3590 | ? ofputil_encode_nx_packet_in(pin) | |
3591 | : ofputil_encode_ofp10_packet_in(pin)); | |
3592 | break; | |
2e1ae200 | 3593 | |
0f83fea0 | 3594 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3595 | packet = ofputil_encode_ofp11_packet_in(pin); |
3596 | break; | |
d94240ec | 3597 | |
0f83fea0 BP |
3598 | case OFPUTIL_P_OF12_OXM: |
3599 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3600 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3601 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3602 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3603 | break; | |
3604 | ||
3605 | default: | |
428b2edd | 3606 | OVS_NOT_REACHED(); |
54834960 | 3607 | } |
54834960 | 3608 | |
0f83fea0 | 3609 | ofpmsg_update_length(packet); |
54834960 | 3610 | return packet; |
ebb57021 BP |
3611 | } |
3612 | ||
5014a89d BP |
3613 | /* Returns a string form of 'reason'. The return value is either a statically |
3614 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3615 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3616 | const char * |
5014a89d BP |
3617 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3618 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3619 | { |
7c1a76a4 BP |
3620 | switch (reason) { |
3621 | case OFPR_NO_MATCH: | |
3622 | return "no_match"; | |
3623 | case OFPR_ACTION: | |
3624 | return "action"; | |
3625 | case OFPR_INVALID_TTL: | |
3626 | return "invalid_ttl"; | |
424467c6 SS |
3627 | case OFPR_ACTION_SET: |
3628 | return "action_set"; | |
3629 | case OFPR_GROUP: | |
3630 | return "group"; | |
3631 | case OFPR_PACKET_OUT: | |
3632 | return "packet_out"; | |
7c1a76a4 BP |
3633 | |
3634 | case OFPR_N_REASONS: | |
3635 | default: | |
5014a89d BP |
3636 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3637 | return reasonbuf; | |
7c1a76a4 BP |
3638 | } |
3639 | } | |
3640 | ||
3641 | bool | |
3642 | ofputil_packet_in_reason_from_string(const char *s, | |
3643 | enum ofp_packet_in_reason *reason) | |
3644 | { | |
3645 | int i; | |
3646 | ||
3647 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3648 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3649 | const char *reason_s; | |
3650 | ||
3651 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3652 | sizeof reasonbuf); | |
3653 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3654 | *reason = i; |
3655 | return true; | |
3656 | } | |
3657 | } | |
3658 | return false; | |
3659 | } | |
3660 | ||
f25d0cf3 BP |
3661 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3662 | * 'po'. | |
3663 | * | |
3664 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3665 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3666 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3667 | * | |
3668 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3669 | enum ofperr |
3670 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3671 | const struct ofp_header *oh, |
f25d0cf3 | 3672 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3673 | { |
982697a4 | 3674 | enum ofpraw raw; |
c6a93eb7 BP |
3675 | struct ofpbuf b; |
3676 | ||
982697a4 BP |
3677 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3678 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3679 | |
9abca1e5 | 3680 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
3681 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3682 | enum ofperr error; | |
3683 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3684 | ||
3685 | po->buffer_id = ntohl(opo->buffer_id); | |
3686 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3687 | if (error) { | |
3688 | return error; | |
3689 | } | |
3690 | ||
e3f8f887 JR |
3691 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3692 | oh->version, ofpacts); | |
eb5ee596 SH |
3693 | if (error) { |
3694 | return error; | |
3695 | } | |
eb5ee596 | 3696 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3697 | enum ofperr error; |
31a9e63f | 3698 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3699 | |
3700 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3701 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3702 | |
e3f8f887 JR |
3703 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3704 | oh->version, ofpacts); | |
8a6bc7cd SH |
3705 | if (error) { |
3706 | return error; | |
3707 | } | |
3708 | } else { | |
428b2edd | 3709 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3710 | } |
3711 | ||
4e022ec0 AW |
3712 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3713 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3714 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3715 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3716 | po->in_port); | |
2e1bfcb6 | 3717 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3718 | } |
3719 | ||
6fd6ed71 PS |
3720 | po->ofpacts = ofpacts->data; |
3721 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3722 | |
3723 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
3724 | po->packet = b.data; |
3725 | po->packet_len = b.size; | |
c6a93eb7 BP |
3726 | } else { |
3727 | po->packet = NULL; | |
3728 | po->packet_len = 0; | |
3729 | } | |
3730 | ||
3731 | return 0; | |
3732 | } | |
6c038611 BP |
3733 | \f |
3734 | /* ofputil_phy_port */ | |
3735 | ||
3736 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3737 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3738 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3739 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3740 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3741 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3742 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3743 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3744 | ||
3745 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3746 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3747 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3748 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3749 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3750 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3751 | |
9e1fd49b BP |
3752 | static enum netdev_features |
3753 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3754 | { |
3755 | uint32_t ofp10 = ntohl(ofp10_); | |
3756 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3757 | } | |
3758 | ||
9e1fd49b BP |
3759 | static ovs_be32 |
3760 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3761 | { |
3762 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3763 | } | |
c6a93eb7 | 3764 | |
9e1fd49b BP |
3765 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3766 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3767 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3768 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3769 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3770 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3771 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3772 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3773 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3774 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3775 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3776 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3777 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3778 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3779 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3780 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3781 | ||
3782 | static enum netdev_features | |
3783 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3784 | { | |
3785 | return ntohl(ofp11) & 0xffff; | |
3786 | } | |
3787 | ||
3788 | static ovs_be32 | |
3789 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3790 | { | |
3791 | return htonl(features & 0xffff); | |
3792 | } | |
3793 | ||
3794 | static enum ofperr | |
3795 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3796 | const struct ofp10_phy_port *opp) | |
3797 | { | |
4e022ec0 | 3798 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 3799 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
3800 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
3801 | ||
3802 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3803 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3804 | ||
3805 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3806 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3807 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3808 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3809 | ||
d02a5f8e BP |
3810 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3811 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3812 | |
3813 | return 0; | |
3814 | } | |
3815 | ||
3816 | static enum ofperr | |
3817 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3818 | const struct ofp11_port *op) | |
3819 | { | |
3820 | enum ofperr error; | |
3821 | ||
9e1fd49b BP |
3822 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3823 | if (error) { | |
3824 | return error; | |
3825 | } | |
74ff3298 | 3826 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
3827 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3828 | ||
3829 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3830 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3831 | |
3832 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3833 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3834 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3835 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3836 | ||
3837 | pp->curr_speed = ntohl(op->curr_speed); | |
3838 | pp->max_speed = ntohl(op->max_speed); | |
3839 | ||
3840 | return 0; | |
3841 | } | |
3842 | ||
8c3cc785 BP |
3843 | static enum ofperr |
3844 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3845 | struct ofputil_phy_port *pp) | |
3846 | { | |
6fd6ed71 | 3847 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 3848 | |
6fd6ed71 | 3849 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
3850 | return OFPERR_OFPBPC_BAD_LEN; |
3851 | } | |
3852 | ||
3853 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3854 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3855 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3856 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3857 | ||
3858 | pp->curr_speed = ntohl(eth->curr_speed); | |
3859 | pp->max_speed = ntohl(eth->max_speed); | |
3860 | ||
3861 | return 0; | |
3862 | } | |
3863 | ||
3864 | static enum ofperr | |
3865 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3866 | { | |
3867 | struct ofpbuf properties; | |
3868 | struct ofp14_port *op; | |
3869 | enum ofperr error; | |
3870 | size_t len; | |
3871 | ||
3872 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3873 | if (!op) { | |
3874 | return OFPERR_OFPBRC_BAD_LEN; | |
3875 | } | |
3876 | ||
3877 | len = ntohs(op->length); | |
6fd6ed71 | 3878 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
3879 | return OFPERR_OFPBRC_BAD_LEN; |
3880 | } | |
3881 | len -= sizeof *op; | |
3882 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3883 | ||
3884 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3885 | if (error) { | |
3886 | return error; | |
3887 | } | |
74ff3298 | 3888 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
3889 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3890 | ||
3891 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3892 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3893 | ||
6fd6ed71 | 3894 | while (properties.size > 0) { |
8c3cc785 BP |
3895 | struct ofpbuf payload; |
3896 | enum ofperr error; | |
3897 | uint16_t type; | |
3898 | ||
3899 | error = ofputil_pull_property(&properties, &payload, &type); | |
3900 | if (error) { | |
3901 | return error; | |
3902 | } | |
3903 | ||
3904 | switch (type) { | |
3905 | case OFPPDPT14_ETHERNET: | |
3906 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3907 | break; | |
3908 | ||
3909 | default: | |
3910 | log_property(true, "unknown port property %"PRIu16, type); | |
3911 | error = 0; | |
3912 | break; | |
3913 | } | |
3914 | ||
3915 | if (error) { | |
3916 | return error; | |
3917 | } | |
3918 | } | |
3919 | ||
3920 | return 0; | |
3921 | } | |
3922 | ||
9e1fd49b BP |
3923 | static void |
3924 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3925 | struct ofp10_phy_port *opp) | |
3926 | { | |
3927 | memset(opp, 0, sizeof *opp); | |
3928 | ||
4e022ec0 | 3929 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 3930 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3931 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3932 | ||
3933 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3934 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3935 | ||
3936 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3937 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3938 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3939 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3940 | } | |
3941 | ||
3942 | static void | |
3943 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3944 | struct ofp11_port *op) | |
3945 | { | |
3946 | memset(op, 0, sizeof *op); | |
3947 | ||
3948 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 3949 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3950 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3951 | ||
3952 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3953 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3954 | ||
3955 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3956 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3957 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3958 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3959 | ||
3960 | op->curr_speed = htonl(pp->curr_speed); | |
3961 | op->max_speed = htonl(pp->max_speed); | |
3962 | } | |
3963 | ||
8c3cc785 BP |
3964 | static void |
3965 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3966 | struct ofpbuf *b) | |
3967 | { | |
3968 | struct ofp14_port *op; | |
3969 | struct ofp14_port_desc_prop_ethernet *eth; | |
3970 | ||
3971 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3972 | ||
3973 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3974 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3975 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 3976 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
3977 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
3978 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3979 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3980 | ||
3981 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
3982 | eth->type = htons(OFPPDPT14_ETHERNET); | |
3983 | eth->length = htons(sizeof *eth); | |
3984 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
3985 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3986 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3987 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3988 | eth->curr_speed = htonl(pp->curr_speed); | |
3989 | eth->max_speed = htonl(pp->max_speed); | |
3990 | } | |
3991 | ||
9e1fd49b | 3992 | static void |
2e3fa633 SH |
3993 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3994 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3995 | { |
2e3fa633 SH |
3996 | switch (ofp_version) { |
3997 | case OFP10_VERSION: { | |
6b0f20ac BP |
3998 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3999 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4000 | break; |
4001 | } | |
4002 | ||
4003 | case OFP11_VERSION: | |
2e1ae200 JR |
4004 | case OFP12_VERSION: |
4005 | case OFP13_VERSION: { | |
6b0f20ac BP |
4006 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4007 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4008 | break; |
4009 | } | |
4010 | ||
c37c0382 | 4011 | case OFP14_VERSION: |
42dccab5 | 4012 | case OFP15_VERSION: |
8c3cc785 | 4013 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4014 | break; |
4015 | ||
2e3fa633 | 4016 | default: |
428b2edd | 4017 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4018 | } |
4019 | } | |
2be393ed | 4020 | |
70ae4f93 BP |
4021 | enum ofperr |
4022 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4023 | ofp_port_t *port) | |
4024 | { | |
4025 | struct ofpbuf b; | |
4026 | enum ofpraw raw; | |
4027 | ||
4028 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
4029 | raw = ofpraw_pull_assert(&b); | |
4030 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
4031 | *port = OFPP_ANY; | |
4032 | return 0; | |
4033 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4034 | ovs_be32 *ofp11_port; | |
4035 | ||
4036 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4037 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4038 | } else { | |
4039 | OVS_NOT_REACHED(); | |
4040 | } | |
4041 | } | |
4042 | ||
4043 | struct ofpbuf * | |
4044 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4045 | ofp_port_t port) | |
4046 | { | |
4047 | struct ofpbuf *request; | |
70ae4f93 BP |
4048 | |
4049 | switch (ofp_version) { | |
4050 | case OFP10_VERSION: | |
4051 | case OFP11_VERSION: | |
4052 | case OFP12_VERSION: | |
4053 | case OFP13_VERSION: | |
4054 | case OFP14_VERSION: | |
4055 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4056 | ofp_version, 0); | |
4057 | break; | |
7448d548 MT |
4058 | case OFP15_VERSION:{ |
4059 | struct ofp15_port_desc_request *req; | |
70ae4f93 BP |
4060 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4061 | ofp_version, 0); | |
7448d548 MT |
4062 | req = ofpbuf_put_zeros(request, sizeof *req); |
4063 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4064 | break; |
7448d548 | 4065 | } |
70ae4f93 BP |
4066 | default: |
4067 | OVS_NOT_REACHED(); | |
4068 | } | |
4069 | ||
4070 | return request; | |
4071 | } | |
4072 | ||
2be393ed | 4073 | void |
e28ac5cf | 4074 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4075 | struct ovs_list *replies) |
2be393ed | 4076 | { |
6b0f20ac | 4077 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 4078 | size_t start_ofs = reply->size; |
c37c0382 | 4079 | |
6b0f20ac BP |
4080 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4081 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4082 | } |
9e1fd49b | 4083 | \f |
ad99e2ed BP |
4084 | /* ofputil_switch_config */ |
4085 | ||
4086 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4087 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4088 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4089 | static bool | |
4090 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4091 | struct ofputil_switch_config *config) | |
4092 | { | |
4093 | const struct ofp_switch_config *osc; | |
4094 | struct ofpbuf b; | |
4095 | ||
4096 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4097 | ofpraw_pull_assert(&b); | |
4098 | osc = ofpbuf_pull(&b, sizeof *osc); | |
4099 | ||
4100 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; | |
4101 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4102 | ||
4103 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4104 | if (oh->version < OFP13_VERSION) { | |
4105 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4106 | valid_mask |= ttl_bit; | |
4107 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4108 | } else { | |
4109 | config->invalid_ttl_to_controller = -1; | |
4110 | } | |
4111 | ||
4112 | return !(osc->flags & ~valid_mask); | |
4113 | } | |
4114 | ||
4115 | void | |
4116 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4117 | struct ofputil_switch_config *config) | |
4118 | { | |
4119 | ofputil_decode_switch_config(oh, config); | |
4120 | } | |
4121 | ||
4122 | enum ofperr | |
4123 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4124 | struct ofputil_switch_config *config) | |
4125 | { | |
4126 | return (ofputil_decode_switch_config(oh, config) | |
4127 | ? 0 | |
4128 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4129 | } | |
4130 | ||
4131 | static struct ofpbuf * | |
4132 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4133 | struct ofpbuf *b) | |
4134 | { | |
4135 | const struct ofp_header *oh = b->data; | |
4136 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4137 | osc->flags = htons(config->frag); | |
4138 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4139 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4140 | } | |
4141 | osc->miss_send_len = htons(config->miss_send_len); | |
4142 | return b; | |
4143 | } | |
4144 | ||
4145 | struct ofpbuf * | |
4146 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4147 | const struct ofputil_switch_config *config) | |
4148 | { | |
4149 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4150 | request, 0); | |
4151 | return ofputil_put_switch_config(config, b); | |
4152 | } | |
4153 | ||
4154 | struct ofpbuf * | |
4155 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4156 | enum ofp_version version) | |
4157 | { | |
4158 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4159 | return ofputil_put_switch_config(config, b); | |
4160 | } | |
4161 | \f | |
9e1fd49b BP |
4162 | /* ofputil_switch_features */ |
4163 | ||
4164 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4165 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4166 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4167 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4168 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4169 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4170 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4171 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4172 | ||
60202987 SH |
4173 | static uint32_t |
4174 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4175 | { | |
0746a84f | 4176 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4177 | switch (ofp_version) { |
4178 | case OFP10_VERSION: | |
4179 | case OFP11_VERSION: | |
4180 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4181 | case OFP12_VERSION: | |
2e1ae200 | 4182 | case OFP13_VERSION: |
c37c0382 | 4183 | case OFP14_VERSION: |
42dccab5 | 4184 | case OFP15_VERSION: |
18cc69d9 | 4185 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4186 | default: |
4187 | /* Caller needs to check osf->header.version itself */ | |
4188 | return 0; | |
4189 | } | |
4190 | } | |
4191 | ||
9e1fd49b BP |
4192 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4193 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4194 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4195 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4196 | * OFPERR_* value. */ |
4197 | enum ofperr | |
982697a4 | 4198 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4199 | struct ofputil_switch_features *features, |
4200 | struct ofpbuf *b) | |
4201 | { | |
982697a4 BP |
4202 | const struct ofp_switch_features *osf; |
4203 | enum ofpraw raw; | |
4204 | ||
4205 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4206 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4207 | |
982697a4 | 4208 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4209 | features->datapath_id = ntohll(osf->datapath_id); |
4210 | features->n_buffers = ntohl(osf->n_buffers); | |
4211 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4212 | features->auxiliary_id = 0; |
9e1fd49b | 4213 | |
60202987 SH |
4214 | features->capabilities = ntohl(osf->capabilities) & |
4215 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4216 | |
982697a4 | 4217 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4218 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4219 | features->capabilities |= OFPUTIL_C_STP; | |
4220 | } | |
08d1e234 BP |
4221 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4222 | OFP10_VERSION); | |
2e1ae200 JR |
4223 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4224 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4225 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4226 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4227 | } | |
08d1e234 | 4228 | features->ofpacts = 0; |
2e1ae200 JR |
4229 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4230 | features->auxiliary_id = osf->auxiliary_id; | |
4231 | } | |
9e1fd49b BP |
4232 | } else { |
4233 | return OFPERR_OFPBRC_BAD_VERSION; | |
4234 | } | |
4235 | ||
4236 | return 0; | |
4237 | } | |
4238 | ||
fca6d553 BP |
4239 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4240 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4241 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4242 | * | |
4243 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4244 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4245 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4246 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4247 | * message. | |
4248 | * | |
4249 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4250 | * stats request to get the ports. */ | |
347b7ac4 | 4251 | bool |
fca6d553 | 4252 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4253 | { |
6fd6ed71 | 4254 | struct ofp_header *oh = b->data; |
13e1aff8 | 4255 | size_t phy_port_size; |
347b7ac4 | 4256 | |
fca6d553 | 4257 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4258 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4259 | return false; |
13e1aff8 BP |
4260 | } |
4261 | ||
4262 | phy_port_size = (oh->version == OFP10_VERSION | |
4263 | ? sizeof(struct ofp10_phy_port) | |
4264 | : sizeof(struct ofp11_port)); | |
4265 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4266 | /* There's room for additional ports in the feature reply. | |
4267 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4268 | return true; |
4269 | } | |
13e1aff8 BP |
4270 | |
4271 | /* The feature reply has no room for more ports. Probably the list is | |
4272 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4273 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4274 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4275 | ofpmsg_update_length(b); |
4276 | return false; | |
347b7ac4 JP |
4277 | } |
4278 | ||
9e1fd49b BP |
4279 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4280 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4281 | * information to the buffer with subsequent calls to | |
4282 | * ofputil_put_switch_features_port(). */ | |
4283 | struct ofpbuf * | |
4284 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4285 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4286 | { | |
4287 | struct ofp_switch_features *osf; | |
4288 | struct ofpbuf *b; | |
2e3fa633 SH |
4289 | enum ofp_version version; |
4290 | enum ofpraw raw; | |
982697a4 BP |
4291 | |
4292 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4293 | switch (version) { |
4294 | case OFP10_VERSION: | |
4295 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4296 | break; | |
4297 | case OFP11_VERSION: | |
4298 | case OFP12_VERSION: | |
4299 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4300 | break; | |
2e1ae200 | 4301 | case OFP13_VERSION: |
c37c0382 | 4302 | case OFP14_VERSION: |
42dccab5 | 4303 | case OFP15_VERSION: |
2e1ae200 JR |
4304 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4305 | break; | |
2e3fa633 | 4306 | default: |
428b2edd | 4307 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4308 | } |
4309 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4310 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4311 | osf->datapath_id = htonll(features->datapath_id); |
4312 | osf->n_buffers = htonl(features->n_buffers); | |
4313 | osf->n_tables = features->n_tables; | |
4314 | ||
4315 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4316 | osf->capabilities = htonl(features->capabilities & |
4317 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4318 | switch (version) { |
4319 | case OFP10_VERSION: | |
9e1fd49b BP |
4320 | if (features->capabilities & OFPUTIL_C_STP) { |
4321 | osf->capabilities |= htonl(OFPC10_STP); | |
4322 | } | |
08d1e234 BP |
4323 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4324 | OFP10_VERSION); | |
2e3fa633 | 4325 | break; |
2e1ae200 | 4326 | case OFP13_VERSION: |
c37c0382 | 4327 | case OFP14_VERSION: |
42dccab5 | 4328 | case OFP15_VERSION: |
2e1ae200 JR |
4329 | osf->auxiliary_id = features->auxiliary_id; |
4330 | /* fall through */ | |
2e3fa633 SH |
4331 | case OFP11_VERSION: |
4332 | case OFP12_VERSION: | |
9e1fd49b BP |
4333 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4334 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4335 | } | |
2e3fa633 SH |
4336 | break; |
4337 | default: | |
428b2edd | 4338 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4339 | } |
4340 | ||
4341 | return b; | |
4342 | } | |
4343 | ||
4344 | /* Encodes 'pp' into the format required by the switch_features message already | |
4345 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4346 | * and appends the encoded version to 'b'. */ | |
4347 | void | |
4348 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4349 | struct ofpbuf *b) | |
4350 | { | |
6fd6ed71 | 4351 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4352 | |
e0c91c0c | 4353 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4354 | /* Try adding a port description to the message, but drop it again if |
4355 | * the buffer overflows. (This possibility for overflow is why | |
4356 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4357 | size_t start_ofs = b->size; |
e0c91c0c | 4358 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4359 | if (b->size > UINT16_MAX) { |
4360 | b->size = start_ofs; | |
6b0f20ac | 4361 | } |
e0c91c0c | 4362 | } |
9e1fd49b BP |
4363 | } |
4364 | \f | |
4365 | /* ofputil_port_status */ | |
4366 | ||
4367 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4368 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4369 | enum ofperr | |
982697a4 | 4370 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4371 | struct ofputil_port_status *ps) |
4372 | { | |
982697a4 | 4373 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4374 | struct ofpbuf b; |
4375 | int retval; | |
4376 | ||
982697a4 BP |
4377 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4378 | ofpraw_pull_assert(&b); | |
4379 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4380 | ||
9e1fd49b BP |
4381 | if (ops->reason != OFPPR_ADD && |
4382 | ops->reason != OFPPR_DELETE && | |
4383 | ops->reason != OFPPR_MODIFY) { | |
4384 | return OFPERR_NXBRC_BAD_REASON; | |
4385 | } | |
4386 | ps->reason = ops->reason; | |
4387 | ||
982697a4 | 4388 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4389 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4390 | return retval; |
4391 | } | |
4392 | ||
4393 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4394 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4395 | * a buffer owned by the caller. */ | |
4396 | struct ofpbuf * | |
4397 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4398 | enum ofputil_protocol protocol) | |
4399 | { | |
4400 | struct ofp_port_status *ops; | |
4401 | struct ofpbuf *b; | |
2e3fa633 SH |
4402 | enum ofp_version version; |
4403 | enum ofpraw raw; | |
982697a4 BP |
4404 | |
4405 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4406 | switch (version) { |
4407 | case OFP10_VERSION: | |
4408 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4409 | break; | |
4410 | ||
4411 | case OFP11_VERSION: | |
4412 | case OFP12_VERSION: | |
2e1ae200 | 4413 | case OFP13_VERSION: |
2e3fa633 SH |
4414 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4415 | break; | |
4416 | ||
8c3cc785 | 4417 | case OFP14_VERSION: |
42dccab5 | 4418 | case OFP15_VERSION: |
8c3cc785 BP |
4419 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4420 | break; | |
4421 | ||
2e3fa633 | 4422 | default: |
428b2edd | 4423 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4424 | } |
4425 | ||
4426 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4427 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4428 | ops->reason = ps->reason; |
982697a4 BP |
4429 | ofputil_put_phy_port(version, &ps->desc, b); |
4430 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4431 | return b; |
4432 | } | |
918f2b82 | 4433 | |
9e1fd49b BP |
4434 | /* ofputil_port_mod */ |
4435 | ||
18cc69d9 BP |
4436 | static enum ofperr |
4437 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4438 | struct ofputil_port_mod *pm) | |
4439 | { | |
6fd6ed71 | 4440 | struct ofp14_port_mod_prop_ethernet *eth = property->data; |
18cc69d9 | 4441 | |
6fd6ed71 | 4442 | if (property->size != sizeof *eth) { |
18cc69d9 BP |
4443 | return OFPERR_OFPBRC_BAD_LEN; |
4444 | } | |
4445 | ||
4446 | pm->advertise = netdev_port_features_from_ofp11(eth->advertise); | |
4447 | return 0; | |
4448 | } | |
4449 | ||
9e1fd49b BP |
4450 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4451 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4452 | enum ofperr | |
4453 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4454 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4455 | { |
982697a4 BP |
4456 | enum ofpraw raw; |
4457 | struct ofpbuf b; | |
9e1fd49b | 4458 | |
982697a4 BP |
4459 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4460 | raw = ofpraw_pull_assert(&b); | |
4461 | ||
4462 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
6fd6ed71 | 4463 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4464 | |
4e022ec0 | 4465 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4466 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4467 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4468 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4469 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4470 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4471 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4472 | enum ofperr error; |
4473 | ||
9e1fd49b BP |
4474 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4475 | if (error) { | |
4476 | return error; | |
4477 | } | |
4478 | ||
74ff3298 | 4479 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4480 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4481 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4482 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4483 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4484 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4485 | enum ofperr error; | |
4486 | ||
4487 | memset(pm, 0, sizeof *pm); | |
4488 | ||
4489 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4490 | if (error) { | |
4491 | return error; | |
4492 | } | |
4493 | ||
74ff3298 | 4494 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4495 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4496 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4497 | ||
6fd6ed71 | 4498 | while (b.size > 0) { |
18cc69d9 BP |
4499 | struct ofpbuf property; |
4500 | enum ofperr error; | |
4501 | uint16_t type; | |
4502 | ||
4503 | error = ofputil_pull_property(&b, &property, &type); | |
4504 | if (error) { | |
4505 | return error; | |
4506 | } | |
4507 | ||
4508 | switch (type) { | |
4509 | case OFPPMPT14_ETHERNET: | |
4510 | error = parse_port_mod_ethernet_property(&property, pm); | |
4511 | break; | |
4512 | ||
4513 | default: | |
4514 | log_property(loose, "unknown port_mod property %"PRIu16, type); | |
4515 | if (loose) { | |
4516 | error = 0; | |
4517 | } else if (type == OFPPMPT14_EXPERIMENTER) { | |
4518 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
4519 | } else { | |
4520 | error = OFPERR_OFPBRC_BAD_TYPE; | |
4521 | } | |
4522 | break; | |
4523 | } | |
4524 | ||
4525 | if (error) { | |
4526 | return error; | |
4527 | } | |
4528 | } | |
9e1fd49b | 4529 | } else { |
982697a4 | 4530 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4531 | } |
4532 | ||
4533 | pm->config &= pm->mask; | |
4534 | return 0; | |
4535 | } | |
4536 | ||
4537 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4538 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4539 | * owned by the caller. */ | |
4540 | struct ofpbuf * | |
4541 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4542 | enum ofputil_protocol protocol) | |
4543 | { | |
2e3fa633 | 4544 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4545 | struct ofpbuf *b; |
4546 | ||
2e3fa633 SH |
4547 | switch (ofp_version) { |
4548 | case OFP10_VERSION: { | |
9e1fd49b BP |
4549 | struct ofp10_port_mod *opm; |
4550 | ||
982697a4 BP |
4551 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4552 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4553 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 4554 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4555 | opm->config = htonl(pm->config & OFPPC10_ALL); |
4556 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4557 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4558 | break; |
4559 | } | |
4560 | ||
5fe7c919 | 4561 | case OFP11_VERSION: |
2e1ae200 JR |
4562 | case OFP12_VERSION: |
4563 | case OFP13_VERSION: { | |
9e1fd49b BP |
4564 | struct ofp11_port_mod *opm; |
4565 | ||
982697a4 BP |
4566 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4567 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4568 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 4569 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4570 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4571 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4572 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4573 | break; |
4574 | } | |
42dccab5 BP |
4575 | case OFP14_VERSION: |
4576 | case OFP15_VERSION: { | |
18cc69d9 BP |
4577 | struct ofp14_port_mod_prop_ethernet *eth; |
4578 | struct ofp14_port_mod *opm; | |
4579 | ||
4580 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth); | |
4581 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4582 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 4583 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
4584 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4585 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4586 | ||
4587 | if (pm->advertise) { | |
4588 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
4589 | eth->type = htons(OFPPMPT14_ETHERNET); | |
4590 | eth->length = htons(sizeof *eth); | |
4591 | eth->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
4592 | } | |
c37c0382 | 4593 | break; |
18cc69d9 | 4594 | } |
918f2b82 | 4595 | default: |
428b2edd | 4596 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4597 | } |
4598 | ||
4599 | return b; | |
4600 | } | |
72b25867 BP |
4601 | \f |
4602 | /* Table features. */ | |
918f2b82 | 4603 | |
5deff5aa | 4604 | static enum ofperr |
9a4eddbb | 4605 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
72b25867 | 4606 | uint16_t *typep) |
5deff5aa | 4607 | { |
9a4eddbb | 4608 | enum ofperr error; |
5deff5aa | 4609 | |
9a4eddbb BP |
4610 | error = ofputil_pull_property(msg, payload, typep); |
4611 | if (payload && !error) { | |
4612 | ofpbuf_pull(payload, sizeof(struct ofp_prop_header)); | |
5deff5aa | 4613 | } |
9a4eddbb | 4614 | return error; |
5deff5aa AW |
4615 | } |
4616 | ||
4617 | static enum ofperr | |
08d1e234 BP |
4618 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4619 | uint64_t *ofpacts) | |
5deff5aa | 4620 | { |
08d1e234 | 4621 | uint32_t types = 0; |
5deff5aa | 4622 | |
6fd6ed71 | 4623 | while (payload->size > 0) { |
08d1e234 BP |
4624 | uint16_t type; |
4625 | enum ofperr error; | |
4626 | ||
72b25867 | 4627 | error = ofputil_pull_property__(payload, NULL, 1, &type); |
5deff5aa AW |
4628 | if (error) { |
4629 | return error; | |
4630 | } | |
08d1e234 BP |
4631 | if (type < CHAR_BIT * sizeof types) { |
4632 | types |= 1u << type; | |
5deff5aa AW |
4633 | } |
4634 | } | |
08d1e234 BP |
4635 | |
4636 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4637 | return 0; |
4638 | } | |
4639 | ||
4640 | static enum ofperr | |
4641 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4642 | { | |
4643 | *insts = 0; | |
6fd6ed71 | 4644 | while (payload->size > 0) { |
5deff5aa AW |
4645 | enum ovs_instruction_type inst; |
4646 | enum ofperr error; | |
4647 | uint16_t ofpit; | |
4648 | ||
72b25867 BP |
4649 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4650 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4651 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4652 | * and do not mention any padding before the first instruction ID. | |
4653 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4654 | * aligned on an odd 4-byte boundary.) | |
4655 | * | |
4656 | * Anyway, we just assume they're all glommed together on byte | |
4657 | * boundaries. */ | |
4658 | error = ofputil_pull_property__(payload, NULL, 1, &ofpit); | |
5deff5aa AW |
4659 | if (error) { |
4660 | return error; | |
4661 | } | |
4662 | ||
4663 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4664 | if (!error) { | |
4665 | *insts |= 1u << inst; | |
4666 | } else if (!loose) { | |
4667 | return error; | |
4668 | } | |
4669 | } | |
4670 | return 0; | |
4671 | } | |
4672 | ||
4673 | static enum ofperr | |
4674 | parse_table_features_next_table(struct ofpbuf *payload, | |
4675 | unsigned long int *next_tables) | |
4676 | { | |
4677 | size_t i; | |
4678 | ||
4679 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
4680 | for (i = 0; i < payload->size; i++) { |
4681 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 4682 | if (id >= 255) { |
9a4eddbb | 4683 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4684 | } |
4685 | bitmap_set1(next_tables, id); | |
4686 | } | |
4687 | return 0; | |
4688 | } | |
4689 | ||
5deff5aa AW |
4690 | static enum ofperr |
4691 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4692 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4693 | { |
abadfcb0 BP |
4694 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4695 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4696 | |
6fd6ed71 | 4697 | while (payload->size > 0) { |
5deff5aa AW |
4698 | const struct mf_field *field; |
4699 | enum ofperr error; | |
4700 | bool hasmask; | |
4701 | ||
178742f9 | 4702 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4703 | if (!error) { |
abadfcb0 | 4704 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4705 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4706 | return error; | |
4707 | } | |
4708 | } | |
4709 | if (exactp) { | |
4710 | *exactp = exact; | |
abadfcb0 | 4711 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4712 | return OFPERR_OFPBMC_BAD_MASK; |
4713 | } | |
4714 | if (maskedp) { | |
4715 | *maskedp = masked; | |
abadfcb0 | 4716 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4717 | return OFPERR_OFPBMC_BAD_MASK; |
4718 | } | |
4719 | return 0; | |
4720 | } | |
4721 | ||
4722 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4723 | * ofputil_table_features in 'tf'. | |
4724 | * | |
4725 | * If 'loose' is true, this function ignores properties and values that it does | |
4726 | * not understand, as a controller would want to do when interpreting | |
4727 | * capabilities provided by a switch. If 'loose' is false, this function | |
4728 | * treats unknown properties and values as an error, as a switch would want to | |
4729 | * do when interpreting a configuration request made by a controller. | |
4730 | * | |
4731 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4732 | * this function multiple times for a single 'msg' iterates through the tables | |
4733 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4734 | * and not modify them between calls. | |
4735 | * | |
4736 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4737 | * a positive "enum ofperr" value. */ | |
4738 | int | |
4739 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4740 | struct ofputil_table_features *tf, bool loose) | |
4741 | { | |
08d1e234 | 4742 | const struct ofp_header *oh; |
5deff5aa | 4743 | struct ofp13_table_features *otf; |
ae665de5 | 4744 | struct ofpbuf properties; |
5deff5aa AW |
4745 | unsigned int len; |
4746 | ||
3c1bb396 BP |
4747 | memset(tf, 0, sizeof *tf); |
4748 | ||
6fd6ed71 | 4749 | if (!msg->header) { |
5deff5aa AW |
4750 | ofpraw_pull_assert(msg); |
4751 | } | |
6fd6ed71 | 4752 | oh = msg->header; |
5deff5aa | 4753 | |
6fd6ed71 | 4754 | if (!msg->size) { |
5deff5aa AW |
4755 | return EOF; |
4756 | } | |
4757 | ||
6fd6ed71 | 4758 | if (msg->size < sizeof *otf) { |
9a4eddbb | 4759 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4760 | } |
4761 | ||
6fd6ed71 | 4762 | otf = msg->data; |
5deff5aa | 4763 | len = ntohs(otf->length); |
6fd6ed71 | 4764 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 4765 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4766 | } |
ae665de5 BP |
4767 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4768 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4769 | |
4770 | tf->table_id = otf->table_id; | |
4771 | if (tf->table_id == OFPTT_ALL) { | |
4772 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4773 | } | |
4774 | ||
4775 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4776 | tf->metadata_match = otf->metadata_match; | |
4777 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
4778 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
4779 | if (oh->version >= OFP14_VERSION) { | |
4780 | uint32_t caps = ntohl(otf->capabilities); | |
4781 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
4782 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
4783 | } else { | |
4784 | tf->supports_eviction = -1; | |
4785 | tf->supports_vacancy_events = -1; | |
4786 | } | |
5deff5aa AW |
4787 | tf->max_entries = ntohl(otf->max_entries); |
4788 | ||
6fd6ed71 | 4789 | while (properties.size > 0) { |
5deff5aa AW |
4790 | struct ofpbuf payload; |
4791 | enum ofperr error; | |
4792 | uint16_t type; | |
4793 | ||
ae665de5 | 4794 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4795 | if (error) { |
4796 | return error; | |
4797 | } | |
4798 | ||
4799 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4800 | case OFPTFPT13_INSTRUCTIONS: | |
4801 | error = parse_instruction_ids(&payload, loose, | |
4802 | &tf->nonmiss.instructions); | |
4803 | break; | |
4804 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4805 | error = parse_instruction_ids(&payload, loose, | |
4806 | &tf->miss.instructions); | |
4807 | break; | |
4808 | ||
4809 | case OFPTFPT13_NEXT_TABLES: | |
4810 | error = parse_table_features_next_table(&payload, | |
4811 | tf->nonmiss.next); | |
4812 | break; | |
4813 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4814 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4815 | break; | |
4816 | ||
4817 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4818 | error = parse_action_bitmap(&payload, oh->version, |
4819 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4820 | break; |
4821 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4822 | error = parse_action_bitmap(&payload, oh->version, |
4823 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4824 | break; |
4825 | ||
4826 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4827 | error = parse_action_bitmap(&payload, oh->version, |
4828 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4829 | break; |
4830 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4831 | error = parse_action_bitmap(&payload, oh->version, |
4832 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4833 | break; |
4834 | ||
4835 | case OFPTFPT13_MATCH: | |
4836 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4837 | break; | |
4838 | case OFPTFPT13_WILDCARDS: | |
4839 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4840 | break; | |
4841 | ||
4842 | case OFPTFPT13_WRITE_SETFIELD: | |
4843 | error = parse_oxms(&payload, loose, | |
4844 | &tf->nonmiss.write.set_fields, NULL); | |
4845 | break; | |
4846 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4847 | error = parse_oxms(&payload, loose, | |
4848 | &tf->miss.write.set_fields, NULL); | |
4849 | break; | |
4850 | case OFPTFPT13_APPLY_SETFIELD: | |
4851 | error = parse_oxms(&payload, loose, | |
4852 | &tf->nonmiss.apply.set_fields, NULL); | |
4853 | break; | |
4854 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4855 | error = parse_oxms(&payload, loose, | |
4856 | &tf->miss.apply.set_fields, NULL); | |
4857 | break; | |
4858 | ||
4859 | case OFPTFPT13_EXPERIMENTER: | |
4860 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb BP |
4861 | default: |
4862 | log_property(loose, "unknown table features property %"PRIu16, | |
4863 | type); | |
4864 | error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE; | |
5deff5aa AW |
4865 | break; |
4866 | } | |
4867 | if (error) { | |
4868 | return error; | |
4869 | } | |
4870 | } | |
4871 | ||
4872 | /* Fix inconsistencies: | |
4873 | * | |
e7227821 BP |
4874 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4875 | * fields are matchable. | |
5deff5aa AW |
4876 | * |
4877 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4878 | * that is arbitrarily maskable can be wildcarded entirely. |
4879 | * | |
4880 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4881 | * must be matchable for it to be meaningfully wildcarded. */ | |
4882 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4883 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4884 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4885 | |
4886 | return 0; | |
4887 | } | |
4888 | ||
4889 | /* Encodes and returns a request to obtain the table features of a switch. | |
4890 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4891 | struct ofpbuf * | |
4892 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4893 | { | |
4894 | struct ofpbuf *request = NULL; | |
4895 | ||
4896 | switch (ofp_version) { | |
4897 | case OFP10_VERSION: | |
4898 | case OFP11_VERSION: | |
4899 | case OFP12_VERSION: | |
4900 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4901 | "(\'-O OpenFlow13\')"); | |
4902 | case OFP13_VERSION: | |
4903 | case OFP14_VERSION: | |
42dccab5 | 4904 | case OFP15_VERSION: |
5deff5aa AW |
4905 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4906 | ofp_version, 0); | |
4907 | break; | |
4908 | default: | |
4909 | OVS_NOT_REACHED(); | |
4910 | } | |
4911 | ||
4912 | return request; | |
4913 | } | |
4914 | ||
3c4e10fb BP |
4915 | static void |
4916 | put_fields_property(struct ofpbuf *reply, | |
4917 | const struct mf_bitmap *fields, | |
4918 | const struct mf_bitmap *masks, | |
4919 | enum ofp13_table_feature_prop_type property, | |
4920 | enum ofp_version version) | |
4921 | { | |
4922 | size_t start_ofs; | |
4923 | int field; | |
4924 | ||
4925 | start_ofs = start_property(reply, property); | |
4926 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { | |
178742f9 BP |
4927 | nx_put_header(reply, field, version, |
4928 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb BP |
4929 | } |
4930 | end_property(reply, start_ofs); | |
4931 | } | |
4932 | ||
4933 | static void | |
4934 | put_table_action_features(struct ofpbuf *reply, | |
4935 | const struct ofputil_table_action_features *taf, | |
4936 | enum ofp13_table_feature_prop_type actions_type, | |
4937 | enum ofp13_table_feature_prop_type set_fields_type, | |
4938 | int miss_offset, enum ofp_version version) | |
4939 | { | |
3646d9ad BP |
4940 | put_bitmap_property(reply, actions_type + miss_offset, |
4941 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4942 | version))); | |
3c4e10fb BP |
4943 | put_fields_property(reply, &taf->set_fields, NULL, |
4944 | set_fields_type + miss_offset, version); | |
4945 | } | |
4946 | ||
4947 | static void | |
4948 | put_table_instruction_features( | |
4949 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4950 | int miss_offset, enum ofp_version version) | |
4951 | { | |
4952 | size_t start_ofs; | |
4953 | uint8_t table_id; | |
4954 | ||
3646d9ad BP |
4955 | put_bitmap_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
4956 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4957 | version))); | |
3c4e10fb BP |
4958 | |
4959 | start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset); | |
4960 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { | |
4961 | ofpbuf_put(reply, &table_id, 1); | |
4962 | } | |
4963 | end_property(reply, start_ofs); | |
4964 | ||
4965 | put_table_action_features(reply, &tif->write, | |
4966 | OFPTFPT13_WRITE_ACTIONS, | |
4967 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4968 | put_table_action_features(reply, &tif->apply, | |
4969 | OFPTFPT13_APPLY_ACTIONS, | |
4970 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4971 | } | |
4972 | ||
4973 | void | |
4974 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 4975 | struct ovs_list *replies) |
3c4e10fb BP |
4976 | { |
4977 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4978 | enum ofp_version version = ofpmp_version(replies); | |
6fd6ed71 | 4979 | size_t start_ofs = reply->size; |
3c4e10fb BP |
4980 | struct ofp13_table_features *otf; |
4981 | ||
4982 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4983 | otf->table_id = tf->table_id; | |
4984 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4985 | otf->metadata_match = tf->metadata_match; | |
4986 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
4987 | if (version >= OFP14_VERSION) { |
4988 | if (tf->supports_eviction) { | |
4989 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
4990 | } | |
4991 | if (tf->supports_vacancy_events) { | |
4992 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
4993 | } | |
4994 | } | |
3c4e10fb BP |
4995 | otf->max_entries = htonl(tf->max_entries); |
4996 | ||
4997 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4998 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4999 | ||
5000 | put_fields_property(reply, &tf->match, &tf->mask, | |
5001 | OFPTFPT13_MATCH, version); | |
5002 | put_fields_property(reply, &tf->wildcard, NULL, | |
5003 | OFPTFPT13_WILDCARDS, version); | |
5004 | ||
5005 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5006 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5007 | ofpmp_postappend(replies, start_ofs); |
5008 | } | |
5009 | ||
03c72922 BP |
5010 | static enum ofperr |
5011 | parse_table_desc_eviction_property(struct ofpbuf *property, | |
5012 | struct ofputil_table_desc *td) | |
5013 | { | |
5014 | struct ofp14_table_mod_prop_eviction *ote = property->data; | |
5015 | ||
5016 | if (property->size != sizeof *ote) { | |
5017 | return OFPERR_OFPBPC_BAD_LEN; | |
5018 | } | |
5019 | ||
5020 | td->eviction_flags = ntohl(ote->flags); | |
5021 | return 0; | |
5022 | } | |
5023 | ||
bab86012 SJ |
5024 | static enum ofperr |
5025 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5026 | struct ofputil_table_desc *td) | |
5027 | { | |
5028 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5029 | ||
5030 | if (property->size != sizeof *otv) { | |
5031 | return OFPERR_OFPBPC_BAD_LEN; | |
5032 | } | |
5033 | ||
5034 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5035 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5036 | td->table_vacancy.vacancy = otv->vacancy; | |
5037 | return 0; | |
5038 | } | |
5039 | ||
03c72922 BP |
5040 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5041 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5042 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5043 | * value. */ | |
5044 | int | |
5045 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5046 | struct ofputil_table_desc *td, | |
5047 | enum ofp_version version) | |
5048 | { | |
5049 | struct ofp14_table_desc *otd; | |
5050 | struct ofpbuf properties; | |
5051 | size_t length; | |
5052 | ||
5053 | memset(td, 0, sizeof *td); | |
5054 | ||
5055 | if (!msg->header) { | |
5056 | ofpraw_pull_assert(msg); | |
5057 | } | |
5058 | ||
5059 | if (!msg->size) { | |
5060 | return EOF; | |
5061 | } | |
5062 | ||
5063 | otd = ofpbuf_try_pull(msg, sizeof *otd); | |
5064 | if (!otd) { | |
5065 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5066 | "leftover bytes at end", msg->size); | |
5067 | return OFPERR_OFPBRC_BAD_LEN; | |
5068 | } | |
5069 | ||
5070 | td->table_id = otd->table_id; | |
5071 | length = ntohs(otd->length); | |
5072 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { | |
5073 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5074 | "length %"PRIuSIZE, length); | |
5075 | return OFPERR_OFPBRC_BAD_LEN; | |
5076 | } | |
5077 | length -= sizeof *otd; | |
5078 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, length), length); | |
5079 | ||
5080 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5081 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5082 | td->eviction_flags = UINT32_MAX; |
5083 | ||
5084 | while (properties.size > 0) { | |
5085 | struct ofpbuf payload; | |
5086 | enum ofperr error; | |
5087 | uint16_t type; | |
5088 | ||
5089 | error = ofputil_pull_property(&properties, &payload, &type); | |
5090 | if (error) { | |
5091 | return error; | |
5092 | } | |
5093 | ||
5094 | switch (type) { | |
5095 | case OFPTMPT14_EVICTION: | |
5096 | error = parse_table_desc_eviction_property(&payload, td); | |
5097 | break; | |
5098 | ||
bab86012 SJ |
5099 | case OFPTMPT14_VACANCY: |
5100 | error = parse_table_desc_vacancy_property(&payload, td); | |
5101 | break; | |
5102 | ||
03c72922 BP |
5103 | default: |
5104 | log_property(true, "unknown table_desc property %"PRIu16, type); | |
5105 | error = 0; | |
5106 | break; | |
5107 | } | |
5108 | ||
5109 | if (error) { | |
5110 | return error; | |
5111 | } | |
5112 | } | |
5113 | ||
5114 | return 0; | |
5115 | } | |
5116 | ||
5117 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5118 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5119 | struct ofpbuf * | |
5120 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5121 | { | |
5122 | struct ofpbuf *request = NULL; | |
5123 | ||
5124 | if (ofp_version >= OFP14_VERSION) { | |
5125 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5126 | ofp_version, 0); | |
5127 | } else { | |
5128 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5129 | "(\'-O OpenFlow14\')"); | |
5130 | } | |
5131 | ||
5132 | return request; | |
5133 | } | |
5134 | ||
5135 | /* Function to append Table desc information in a reply list. */ | |
5136 | void | |
5137 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5138 | struct ovs_list *replies, | |
5139 | enum ofp_version version) | |
5140 | { | |
5141 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
5142 | size_t start_otd; | |
5143 | struct ofp14_table_desc *otd; | |
5144 | ||
5145 | start_otd = reply->size; | |
5146 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5147 | if (td->eviction_flags != UINT32_MAX) { | |
5148 | struct ofp14_table_mod_prop_eviction *ote; | |
5149 | ||
5150 | ote = ofpbuf_put_zeros(reply, sizeof *ote); | |
5151 | ote->type = htons(OFPTMPT14_EVICTION); | |
5152 | ote->length = htons(sizeof *ote); | |
5153 | ote->flags = htonl(td->eviction_flags); | |
5154 | } | |
bab86012 SJ |
5155 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5156 | struct ofp14_table_mod_prop_vacancy *otv; | |
5157 | ||
5158 | otv = ofpbuf_put_zeros(reply, sizeof *otv); | |
5159 | otv->type = htons(OFPTMPT14_VACANCY); | |
5160 | otv->length = htons(sizeof *otv); | |
5161 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
5162 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5163 | otv->vacancy = td->table_vacancy.vacancy; | |
5164 | } | |
03c72922 BP |
5165 | |
5166 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5167 | otd->length = htons(reply->size - start_otd); | |
5168 | otd->table_id = td->table_id; | |
5169 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5170 | td->eviction, td->vacancy, |
5171 | version); | |
03c72922 BP |
5172 | ofpmp_postappend(replies, start_otd); |
5173 | } | |
5174 | ||
de7d3c07 SJ |
5175 | /* This function parses Vacancy property, and decodes the |
5176 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5177 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5178 | * greater than vacancy_up and also when current vacancy has non-zero | |
5179 | * value. Returns 0 on success. */ | |
5180 | static enum ofperr | |
5181 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5182 | struct ofputil_table_mod *tm) | |
5183 | { | |
5184 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5185 | ||
5186 | if (property->size != sizeof *otv) { | |
5187 | return OFPERR_OFPBPC_BAD_LEN; | |
5188 | } | |
5189 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5190 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5191 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
5192 | log_property(false, "Value of vacancy_down is greater than " | |
5193 | "vacancy_up"); | |
5194 | return OFPERR_OFPBPC_BAD_VALUE; | |
5195 | } | |
5196 | if (tm->table_vacancy.vacancy_down > 100 || | |
5197 | tm->table_vacancy.vacancy_up > 100) { | |
5198 | log_property(false, "Vacancy threshold percentage should not be" | |
5199 | "greater than 100"); | |
5200 | return OFPERR_OFPBPC_BAD_VALUE; | |
5201 | } | |
5202 | tm->table_vacancy.vacancy = otv->vacancy; | |
5203 | if (tm->table_vacancy.vacancy) { | |
5204 | log_property(false, "Vacancy value should be zero for table-mod " | |
5205 | "messages"); | |
5206 | return OFPERR_OFPBPC_BAD_VALUE; | |
5207 | } | |
5208 | return 0; | |
5209 | } | |
5210 | ||
5211 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5212 | * table configuration (a table mod, table stats, or table features message), | |
5213 | * returns the table vacancy configuration that it specifies. | |
5214 | * | |
5215 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5216 | * so for other 'version' this function always returns | |
5217 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5218 | static enum ofputil_table_vacancy | |
5219 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5220 | { | |
5221 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5222 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5223 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5224 | } | |
5225 | ||
82c22d34 BP |
5226 | static enum ofperr |
5227 | parse_table_mod_eviction_property(struct ofpbuf *property, | |
5228 | struct ofputil_table_mod *tm) | |
5229 | { | |
5230 | struct ofp14_table_mod_prop_eviction *ote = property->data; | |
5231 | ||
5232 | if (property->size != sizeof *ote) { | |
5233 | return OFPERR_OFPBPC_BAD_LEN; | |
5234 | } | |
5235 | ||
5236 | tm->eviction_flags = ntohl(ote->flags); | |
5237 | return 0; | |
5238 | } | |
918f2b82 | 5239 | |
3c1bb396 BP |
5240 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5241 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5242 | * returns the table eviction configuration that it specifies. |
5243 | * | |
5244 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5245 | * so for other 'version' values this function always returns | |
5246 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5247 | static enum ofputil_table_eviction | |
5248 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5249 | { | |
5250 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5251 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5252 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5253 | } | |
5254 | ||
5255 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5256 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5257 | * 'eviction' values. */ | |
5258 | static ovs_be32 | |
5259 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5260 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5261 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5262 | enum ofp_version version) |
5263 | { | |
de7d3c07 | 5264 | uint32_t config = 0; |
82c22d34 BP |
5265 | /* See the section "OFPTC_* Table Configuration" in DESIGN.md for more |
5266 | * information on the crazy evolution of this field. */ | |
5267 | switch (version) { | |
5268 | case OFP10_VERSION: | |
5269 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5270 | return htonl(0); | |
5271 | ||
5272 | case OFP11_VERSION: | |
5273 | case OFP12_VERSION: | |
5274 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5275 | switch (miss) { | |
5276 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5277 | /* Really this shouldn't be used for encoding (the caller should | |
5278 | * provide a specific value) but I can't imagine that defaulting to | |
5279 | * the fall-through case here will hurt. */ | |
5280 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5281 | default: | |
5282 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5283 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5284 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5285 | case OFPUTIL_TABLE_MISS_DROP: | |
5286 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5287 | } | |
5288 | OVS_NOT_REACHED(); | |
5289 | ||
5290 | case OFP13_VERSION: | |
5291 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5292 | * flags, so this is correct. */ | |
5293 | return htonl(0); | |
5294 | ||
5295 | case OFP14_VERSION: | |
5296 | case OFP15_VERSION: | |
de7d3c07 SJ |
5297 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5298 | * OFPTC14_VACANCY_EVENTS. */ | |
5299 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5300 | config |= OFPTC14_EVICTION; | |
5301 | } | |
5302 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5303 | config |= OFPTC14_VACANCY_EVENTS; | |
5304 | } | |
5305 | return htonl(config); | |
82c22d34 BP |
5306 | } |
5307 | ||
5308 | OVS_NOT_REACHED(); | |
5309 | } | |
5310 | ||
5311 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5312 | * table configuration (a table mod, table stats, or table features message), | |
5313 | * returns the table miss configuration that it specifies. | |
5314 | * | |
5315 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5316 | * other 'version' values this function always returns | |
5317 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5318 | static enum ofputil_table_miss |
82c22d34 | 5319 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5320 | { |
5321 | uint32_t config = ntohl(config_); | |
5322 | ||
82c22d34 | 5323 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5324 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5325 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5326 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5327 | ||
5328 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5329 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5330 | ||
5331 | case OFPTC11_TABLE_MISS_DROP: | |
5332 | return OFPUTIL_TABLE_MISS_DROP; | |
5333 | ||
5334 | default: | |
5335 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5336 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5337 | } | |
5338 | } else { | |
5339 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5340 | } | |
5341 | } | |
5342 | ||
918f2b82 AZ |
5343 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5344 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5345 | enum ofperr | |
5346 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5347 | struct ofputil_table_mod *pm) | |
5348 | { | |
5349 | enum ofpraw raw; | |
5350 | struct ofpbuf b; | |
5351 | ||
82c22d34 BP |
5352 | memset(pm, 0, sizeof *pm); |
5353 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5354 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5355 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5356 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 AZ |
5357 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5358 | raw = ofpraw_pull_assert(&b); | |
5359 | ||
5360 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
6fd6ed71 | 5361 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5362 | |
5363 | pm->table_id = otm->table_id; | |
82c22d34 | 5364 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5365 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5366 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5367 | ||
5368 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5369 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5370 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5371 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5372 | while (b.size > 0) { |
5373 | struct ofpbuf property; | |
5374 | enum ofperr error; | |
5375 | uint16_t type; | |
5376 | ||
5377 | error = ofputil_pull_property(&b, &property, &type); | |
5378 | if (error) { | |
5379 | return error; | |
5380 | } | |
5381 | ||
5382 | switch (type) { | |
5383 | case OFPTMPT14_EVICTION: | |
5384 | error = parse_table_mod_eviction_property(&property, pm); | |
5385 | break; | |
5386 | ||
de7d3c07 SJ |
5387 | case OFPTMPT14_VACANCY: |
5388 | error = parse_table_mod_vacancy_property(&property, pm); | |
5389 | break; | |
5390 | ||
82c22d34 BP |
5391 | default: |
5392 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5393 | break; | |
5394 | } | |
5395 | ||
5396 | if (error) { | |
5397 | return error; | |
5398 | } | |
5399 | } | |
918f2b82 AZ |
5400 | } else { |
5401 | return OFPERR_OFPBRC_BAD_TYPE; | |
5402 | } | |
5403 | ||
5404 | return 0; | |
5405 | } | |
5406 | ||
82c22d34 BP |
5407 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5408 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5409 | * buffer owned by the caller. */ | |
918f2b82 | 5410 | struct ofpbuf * |
82c22d34 | 5411 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5412 | enum ofputil_protocol protocol) |
5413 | { | |
5414 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5415 | struct ofpbuf *b; | |
5416 | ||
5417 | switch (ofp_version) { | |
5418 | case OFP10_VERSION: { | |
5419 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5420 | "(\'-O OpenFlow11\')"); | |
5421 | break; | |
5422 | } | |
5423 | case OFP11_VERSION: | |
5424 | case OFP12_VERSION: | |
5425 | case OFP13_VERSION: { | |
5426 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5427 | |
918f2b82 AZ |
5428 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5429 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5430 | otm->table_id = tm->table_id; |
5431 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5432 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5433 | break; |
5434 | } | |
42dccab5 BP |
5435 | case OFP14_VERSION: |
5436 | case OFP15_VERSION: { | |
37ab26e8 | 5437 | struct ofp14_table_mod *otm; |
82c22d34 | 5438 | struct ofp14_table_mod_prop_eviction *ote; |
de7d3c07 | 5439 | struct ofp14_table_mod_prop_vacancy *otv; |
37ab26e8 BP |
5440 | |
5441 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5442 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5443 | otm->table_id = tm->table_id; |
5444 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5445 | tm->vacancy, ofp_version); |
82c22d34 BP |
5446 | |
5447 | if (tm->eviction_flags != UINT32_MAX) { | |
5448 | ote = ofpbuf_put_zeros(b, sizeof *ote); | |
5449 | ote->type = htons(OFPTMPT14_EVICTION); | |
5450 | ote->length = htons(sizeof *ote); | |
5451 | ote->flags = htonl(tm->eviction_flags); | |
5452 | } | |
de7d3c07 SJ |
5453 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5454 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
5455 | otv->type = htons(OFPTMPT14_VACANCY); | |
5456 | otv->length = htons(sizeof *otv); | |
5457 | otv->vacancy_down = tm->table_vacancy.vacancy_down; | |
5458 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5459 | } | |
c37c0382 | 5460 | break; |
37ab26e8 | 5461 | } |
2e3fa633 | 5462 | default: |
428b2edd | 5463 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5464 | } |
5465 | ||
5466 | return b; | |
5467 | } | |
2b07c8b1 | 5468 | \f |
6ea4776b JR |
5469 | /* ofputil_role_request */ |
5470 | ||
5471 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5472 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5473 | * OFPERR_* value. */ | |
5474 | enum ofperr | |
5475 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5476 | struct ofputil_role_request *rr) | |
5477 | { | |
6ea4776b JR |
5478 | struct ofpbuf b; |
5479 | enum ofpraw raw; | |
5480 | ||
6ea4776b JR |
5481 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5482 | raw = ofpraw_pull_assert(&b); | |
5483 | ||
f4f1ea7e BP |
5484 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5485 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5486 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5487 | |
f4f1ea7e BP |
5488 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5489 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5490 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5491 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5492 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5493 | } |
5494 | ||
f4f1ea7e | 5495 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5496 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5497 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5498 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5499 | rr->have_generation_id = false; |
5500 | rr->generation_id = 0; | |
5501 | } else { | |
5502 | rr->have_generation_id = true; | |
5503 | rr->generation_id = ntohll(orr->generation_id); | |
5504 | } | |
5505 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5506 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5507 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5508 | |
5509 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5510 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5511 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5512 | ||
5513 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5514 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5515 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5516 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5517 | } | |
6ea4776b | 5518 | |
f4f1ea7e BP |
5519 | rr->role = ntohl(nrr->role) + 1; |
5520 | rr->have_generation_id = false; | |
5521 | rr->generation_id = 0; | |
5522 | } else { | |
428b2edd | 5523 | OVS_NOT_REACHED(); |
6ea4776b JR |
5524 | } |
5525 | ||
6ea4776b JR |
5526 | return 0; |
5527 | } | |
5528 | ||
5529 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5530 | * buffer owned by the caller. */ | |
5531 | struct ofpbuf * | |
5532 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5533 | const struct ofputil_role_request *rr) |
6ea4776b | 5534 | { |
6ea4776b | 5535 | struct ofpbuf *buf; |
6ea4776b JR |
5536 | enum ofpraw raw; |
5537 | ||
f4f1ea7e | 5538 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5539 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5540 | struct ofp12_role_request *orr; |
6ea4776b | 5541 | |
f4f1ea7e BP |
5542 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5543 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5544 | |
147cc9d3 BP |
5545 | orr->role = htonl(rr->role); |
5546 | orr->generation_id = htonll(rr->have_generation_id | |
5547 | ? rr->generation_id | |
5548 | : UINT64_MAX); | |
f4f1ea7e BP |
5549 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5550 | struct nx_role_request *nrr; | |
5551 | ||
5552 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5553 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5554 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5555 | ||
5556 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5557 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5558 | nrr->role = htonl(rr->role - 1); | |
5559 | } else { | |
428b2edd | 5560 | OVS_NOT_REACHED(); |
6ea4776b | 5561 | } |
6ea4776b JR |
5562 | |
5563 | return buf; | |
5564 | } | |
5565 | \f | |
6751a4b4 BP |
5566 | /* Encodes "role status" message 'status' for sending in the given |
5567 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5568 | * otherwise a null pointer. */ | |
00467f73 AC |
5569 | struct ofpbuf * |
5570 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5571 | enum ofputil_protocol protocol) | |
5572 | { | |
00467f73 | 5573 | enum ofp_version version; |
00467f73 AC |
5574 | |
5575 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5576 | if (version >= OFP14_VERSION) { |
5577 | struct ofp14_role_status *rstatus; | |
5578 | struct ofpbuf *buf; | |
5579 | ||
5580 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5581 | 0); | |
5582 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5583 | rstatus->role = htonl(status->role); | |
5584 | rstatus->reason = status->reason; | |
5585 | rstatus->generation_id = htonll(status->generation_id); | |
5586 | ||
5587 | return buf; | |
5588 | } else { | |
5589 | return NULL; | |
5590 | } | |
00467f73 AC |
5591 | } |
5592 | ||
5593 | enum ofperr | |
5594 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5595 | struct ofputil_role_status *rs) | |
5596 | { | |
5597 | struct ofpbuf b; | |
5598 | enum ofpraw raw; | |
5599 | const struct ofp14_role_status *r; | |
5600 | ||
5601 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5602 | raw = ofpraw_pull_assert(&b); | |
5603 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5604 | ||
6fd6ed71 | 5605 | r = b.msg; |
00467f73 AC |
5606 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5607 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5608 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5609 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5610 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5611 | } | |
5612 | ||
5613 | rs->role = ntohl(r->role); | |
5614 | rs->generation_id = ntohll(r->generation_id); | |
5615 | rs->reason = r->reason; | |
5616 | ||
5617 | return 0; | |
5618 | } | |
5619 | ||
3c35db62 NR |
5620 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
5621 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
5622 | struct ofpbuf * | |
5623 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
5624 | enum ofputil_protocol protocol) | |
5625 | { | |
5626 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5627 | struct ofpbuf *inner; | |
5628 | ||
5629 | switch (rf->reason) { | |
5630 | case OFPRFR_GROUP_MOD: | |
5631 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
5632 | break; | |
5633 | ||
5634 | case OFPRFR_METER_MOD: | |
5635 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
5636 | break; | |
5637 | ||
d18cc1ee | 5638 | case OFPRFR_N_REASONS: |
3c35db62 NR |
5639 | default: |
5640 | OVS_NOT_REACHED(); | |
5641 | } | |
5642 | ||
5643 | struct ofp_header *inner_oh = inner->data; | |
5644 | inner_oh->xid = rf->xid; | |
5645 | inner_oh->length = htons(inner->size); | |
5646 | ||
5647 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
5648 | ofp_version, htonl(0), | |
5649 | inner->size); | |
5650 | ofpbuf_put(outer, inner->data, inner->size); | |
5651 | ofpbuf_delete(inner); | |
5652 | ||
5653 | return outer; | |
5654 | } | |
5655 | ||
5656 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
5657 | * form into '*rf' and returns 0, and the caller is later responsible for | |
5658 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
5659 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
5660 | enum ofperr | |
5661 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
5662 | struct ofputil_requestforward *rf) | |
5663 | { | |
5664 | struct ofpbuf b; | |
5665 | enum ofperr error; | |
5666 | ||
5667 | ofpbuf_use_const(&b, outer, ntohs(outer->length)); | |
5668 | ||
5669 | /* Skip past outer message. */ | |
5670 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
5671 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
5672 | ||
5673 | /* Validate inner message. */ | |
5674 | if (b.size < sizeof(struct ofp_header)) { | |
5675 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5676 | } | |
5677 | const struct ofp_header *inner = b.data; | |
5678 | unsigned int inner_len = ntohs(inner->length); | |
5679 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
5680 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5681 | } | |
5682 | if (inner->version != outer->version) { | |
5683 | return OFPERR_OFPBRC_BAD_VERSION; | |
5684 | } | |
5685 | ||
5686 | /* Parse inner message. */ | |
5687 | enum ofptype type; | |
5688 | error = ofptype_decode(&type, inner); | |
5689 | if (error) { | |
5690 | return error; | |
5691 | } | |
5692 | ||
5693 | rf->xid = inner->xid; | |
5694 | if (type == OFPTYPE_GROUP_MOD) { | |
5695 | rf->reason = OFPRFR_GROUP_MOD; | |
5696 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
5697 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
5698 | if (error) { | |
5699 | free(rf->group_mod); | |
5700 | return error; | |
5701 | } | |
5702 | } else if (type == OFPTYPE_METER_MOD) { | |
5703 | rf->reason = OFPRFR_METER_MOD; | |
5704 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
5705 | ofpbuf_init(&rf->bands, 64); | |
5706 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
5707 | if (error) { | |
5708 | free(rf->meter_mod); | |
5709 | ofpbuf_uninit(&rf->bands); | |
5710 | return error; | |
5711 | } | |
5712 | } else { | |
5713 | return OFPERR_OFPBFC_MSG_UNSUP; | |
5714 | } | |
5715 | ||
5716 | return 0; | |
5717 | } | |
5718 | ||
5719 | /* Frees the content of 'rf', which should have been initialized through a | |
5720 | * successful call to ofputil_decode_requestforward(). */ | |
5721 | void | |
5722 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
5723 | { | |
5724 | if (!rf) { | |
5725 | return; | |
5726 | } | |
5727 | ||
5728 | switch (rf->reason) { | |
5729 | case OFPRFR_GROUP_MOD: | |
5730 | ofputil_uninit_group_mod(rf->group_mod); | |
5731 | free(rf->group_mod); | |
5732 | break; | |
5733 | ||
5734 | case OFPRFR_METER_MOD: | |
5735 | ofpbuf_uninit(&rf->bands); | |
5736 | free(rf->meter_mod); | |
d18cc1ee AA |
5737 | break; |
5738 | ||
5739 | case OFPRFR_N_REASONS: | |
5740 | OVS_NOT_REACHED(); | |
3c35db62 NR |
5741 | } |
5742 | } | |
5743 | ||
307975da SH |
5744 | /* Table stats. */ |
5745 | ||
3c1bb396 BP |
5746 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5747 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5748 | * that contains both kinds of fields. */ | |
5749 | static struct mf_bitmap | |
5750 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5751 | { | |
5752 | struct mf_bitmap wc = features->match; | |
5753 | bitmap_not(wc.bm, MFF_N_IDS); | |
5754 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5755 | return wc; | |
5756 | } | |
5757 | ||
5758 | struct ofp10_wc_map { | |
5759 | enum ofp10_flow_wildcards wc10; | |
5760 | enum mf_field_id mf; | |
5761 | }; | |
5762 | ||
5763 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5764 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5765 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5766 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5767 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5768 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5769 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5770 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5771 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5772 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5773 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5774 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5775 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5776 | }; | |
5777 | ||
5778 | static ovs_be32 | |
5779 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5780 | { | |
5781 | const struct ofp10_wc_map *p; | |
5782 | uint32_t wc10 = 0; | |
5783 | ||
5784 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5785 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5786 | wc10 |= p->wc10; | |
5787 | } | |
5788 | } | |
5789 | return htonl(wc10); | |
5790 | } | |
5791 | ||
5792 | static struct mf_bitmap | |
5793 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5794 | { | |
5795 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5796 | const struct ofp10_wc_map *p; | |
5797 | uint32_t wc10 = ntohl(wc10_); | |
5798 | ||
5799 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5800 | if (wc10 & p->wc10) { | |
5801 | bitmap_set1(fields.bm, p->mf); | |
5802 | } | |
5803 | } | |
5804 | return fields; | |
5805 | } | |
5806 | ||
307975da | 5807 | static void |
3c1bb396 BP |
5808 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5809 | const struct ofputil_table_features *features, | |
307975da SH |
5810 | struct ofpbuf *buf) |
5811 | { | |
3c1bb396 | 5812 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5813 | struct ofp10_table_stats *out; |
307975da | 5814 | |
3bdc692b | 5815 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5816 | out->table_id = features->table_id; |
5817 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5818 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5819 | out->max_entries = htonl(features->max_entries); | |
5820 | out->active_count = htonl(stats->active_count); | |
5821 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5822 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5823 | } | |
5824 | ||
5825 | struct ofp11_wc_map { | |
5826 | enum ofp11_flow_match_fields wc11; | |
5827 | enum mf_field_id mf; | |
5828 | }; | |
5829 | ||
5830 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5831 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5832 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5833 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5834 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5835 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5836 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5837 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5838 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5839 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5840 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5841 | /* I don't know what OFPFMF11_TYPE means. */ | |
5842 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5843 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5844 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5845 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5846 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5847 | }; | |
5848 | ||
5849 | static ovs_be32 | |
5850 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5851 | { | |
5852 | const struct ofp11_wc_map *p; | |
5853 | uint32_t wc11 = 0; | |
5854 | ||
5855 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5856 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5857 | wc11 |= p->wc11; | |
307975da SH |
5858 | } |
5859 | } | |
3c1bb396 | 5860 | return htonl(wc11); |
307975da SH |
5861 | } |
5862 | ||
3c1bb396 BP |
5863 | static struct mf_bitmap |
5864 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5865 | { | |
5866 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5867 | const struct ofp11_wc_map *p; | |
5868 | uint32_t wc11 = ntohl(wc11_); | |
5869 | ||
5870 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5871 | if (wc11 & p->wc11) { | |
5872 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5873 | } |
5874 | } | |
3c1bb396 | 5875 | return fields; |
307975da SH |
5876 | } |
5877 | ||
5878 | static void | |
3c1bb396 BP |
5879 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5880 | const struct ofputil_table_features *features, | |
307975da SH |
5881 | struct ofpbuf *buf) |
5882 | { | |
3c1bb396 | 5883 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5884 | struct ofp11_table_stats *out; |
5885 | ||
3bdc692b | 5886 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5887 | out->table_id = features->table_id; |
5888 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5889 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5890 | out->match = mf_bitmap_to_of11(&features->match); | |
5891 | out->instructions = ovsinst_bitmap_to_openflow( | |
5892 | features->nonmiss.instructions, OFP11_VERSION); | |
5893 | out->write_actions = ofpact_bitmap_to_openflow( | |
5894 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5895 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5896 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5897 | out->config = htonl(features->miss_config); | |
5898 | out->max_entries = htonl(features->max_entries); | |
5899 | out->active_count = htonl(stats->active_count); | |
5900 | out->lookup_count = htonll(stats->lookup_count); | |
5901 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5902 | } |
5903 | ||
6240624b | 5904 | static void |
3c1bb396 BP |
5905 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5906 | const struct ofputil_table_features *features, | |
6240624b BP |
5907 | struct ofpbuf *buf) |
5908 | { | |
08d1e234 | 5909 | struct ofp12_table_stats *out; |
6240624b | 5910 | |
08d1e234 | 5911 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5912 | out->table_id = features->table_id; |
5913 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
5914 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
5915 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
5916 | OFP12_VERSION); |
5917 | out->write_actions = ofpact_bitmap_to_openflow( | |
5918 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5919 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5920 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 5921 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 5922 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 5923 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
5924 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
5925 | out->metadata_match = features->metadata_match; | |
5926 | out->metadata_write = features->metadata_write; | |
5927 | out->instructions = ovsinst_bitmap_to_openflow( | |
5928 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
5929 | out->config = ofputil_encode_table_config(features->miss_config, |
5930 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 5931 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 5932 | OFP12_VERSION); |
3c1bb396 BP |
5933 | out->max_entries = htonl(features->max_entries); |
5934 | out->active_count = htonl(stats->active_count); | |
5935 | out->lookup_count = htonll(stats->lookup_count); | |
5936 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5937 | } |
5938 | ||
2e1ae200 | 5939 | static void |
3c1bb396 | 5940 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5941 | struct ofpbuf *buf) |
5942 | { | |
5943 | struct ofp13_table_stats *out; | |
5944 | ||
3c1bb396 BP |
5945 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5946 | out->table_id = stats->table_id; | |
5947 | out->active_count = htonl(stats->active_count); | |
5948 | out->lookup_count = htonll(stats->lookup_count); | |
5949 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5950 | } |
5951 | ||
307975da | 5952 | struct ofpbuf * |
3c1bb396 | 5953 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5954 | { |
3c1bb396 BP |
5955 | return ofpraw_alloc_stats_reply(request, 0); |
5956 | } | |
307975da | 5957 | |
3c1bb396 BP |
5958 | void |
5959 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5960 | const struct ofputil_table_stats *stats, | |
5961 | const struct ofputil_table_features *features) | |
5962 | { | |
6fd6ed71 | 5963 | struct ofp_header *oh = reply->header; |
307975da | 5964 | |
3c1bb396 | 5965 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5966 | |
3c1bb396 BP |
5967 | switch ((enum ofp_version) oh->version) { |
5968 | case OFP10_VERSION: | |
5969 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5970 | break; | |
307975da | 5971 | |
3c1bb396 BP |
5972 | case OFP11_VERSION: |
5973 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5974 | break; | |
307975da | 5975 | |
3c1bb396 BP |
5976 | case OFP12_VERSION: |
5977 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5978 | break; | |
2e1ae200 | 5979 | |
3c1bb396 BP |
5980 | case OFP13_VERSION: |
5981 | case OFP14_VERSION: | |
5982 | case OFP15_VERSION: | |
5983 | ofputil_put_ofp13_table_stats(stats, reply); | |
5984 | break; | |
5985 | ||
5986 | default: | |
5987 | OVS_NOT_REACHED(); | |
307975da | 5988 | } |
3c1bb396 | 5989 | } |
307975da | 5990 | |
3c1bb396 BP |
5991 | static int |
5992 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5993 | struct ofputil_table_stats *stats, | |
5994 | struct ofputil_table_features *features) | |
5995 | { | |
5996 | struct ofp10_table_stats *ots; | |
5997 | ||
5998 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5999 | if (!ots) { | |
6000 | return OFPERR_OFPBRC_BAD_LEN; | |
6001 | } | |
6002 | ||
6003 | features->table_id = ots->table_id; | |
6004 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6005 | features->max_entries = ntohl(ots->max_entries); | |
6006 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6007 | ||
6008 | stats->table_id = ots->table_id; | |
6009 | stats->active_count = ntohl(ots->active_count); | |
6010 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6011 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6012 | ||
6013 | return 0; | |
6014 | } | |
6015 | ||
6016 | static int | |
6017 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6018 | struct ofputil_table_stats *stats, | |
6019 | struct ofputil_table_features *features) | |
6020 | { | |
6021 | struct ofp11_table_stats *ots; | |
6022 | ||
6023 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6024 | if (!ots) { | |
6025 | return OFPERR_OFPBRC_BAD_LEN; | |
6026 | } | |
6027 | ||
6028 | features->table_id = ots->table_id; | |
6029 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6030 | features->max_entries = ntohl(ots->max_entries); | |
6031 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6032 | ots->instructions, OFP11_VERSION); | |
6033 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6034 | ots->write_actions, OFP11_VERSION); | |
6035 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6036 | ots->write_actions, OFP11_VERSION); | |
6037 | features->miss = features->nonmiss; | |
82c22d34 BP |
6038 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6039 | OFP11_VERSION); | |
3c1bb396 BP |
6040 | features->match = mf_bitmap_from_of11(ots->match); |
6041 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6042 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6043 | ||
6044 | stats->table_id = ots->table_id; | |
6045 | stats->active_count = ntohl(ots->active_count); | |
6046 | stats->lookup_count = ntohll(ots->lookup_count); | |
6047 | stats->matched_count = ntohll(ots->matched_count); | |
6048 | ||
6049 | return 0; | |
6050 | } | |
6051 | ||
6052 | static int | |
6053 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6054 | struct ofputil_table_stats *stats, | |
6055 | struct ofputil_table_features *features) | |
6056 | { | |
6057 | struct ofp12_table_stats *ots; | |
6058 | ||
6059 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6060 | if (!ots) { | |
6061 | return OFPERR_OFPBRC_BAD_LEN; | |
6062 | } | |
6063 | ||
6064 | features->table_id = ots->table_id; | |
6065 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6066 | features->metadata_match = ots->metadata_match; | |
6067 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6068 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6069 | OFP12_VERSION); | |
3c1bb396 BP |
6070 | features->max_entries = ntohl(ots->max_entries); |
6071 | ||
6072 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6073 | ots->instructions, OFP12_VERSION); | |
6074 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6075 | ots->write_actions, OFP12_VERSION); | |
6076 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6077 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6078 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6079 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6080 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6081 | ots->apply_setfields, OFP12_VERSION); |
6082 | features->miss = features->nonmiss; | |
6083 | ||
178742f9 BP |
6084 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6085 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6086 | OFP12_VERSION); | |
3c1bb396 BP |
6087 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6088 | ||
6089 | stats->table_id = ots->table_id; | |
6090 | stats->active_count = ntohl(ots->active_count); | |
6091 | stats->lookup_count = ntohll(ots->lookup_count); | |
6092 | stats->matched_count = ntohll(ots->matched_count); | |
6093 | ||
6094 | return 0; | |
6095 | } | |
6096 | ||
6097 | static int | |
6098 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6099 | struct ofputil_table_stats *stats, | |
6100 | struct ofputil_table_features *features) | |
6101 | { | |
6102 | struct ofp13_table_stats *ots; | |
6103 | ||
6104 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6105 | if (!ots) { | |
6106 | return OFPERR_OFPBRC_BAD_LEN; | |
6107 | } | |
6108 | ||
6109 | features->table_id = ots->table_id; | |
6110 | ||
6111 | stats->table_id = ots->table_id; | |
6112 | stats->active_count = ntohl(ots->active_count); | |
6113 | stats->lookup_count = ntohll(ots->lookup_count); | |
6114 | stats->matched_count = ntohll(ots->matched_count); | |
6115 | ||
6116 | return 0; | |
6117 | } | |
6118 | ||
6119 | int | |
6120 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6121 | struct ofputil_table_stats *stats, | |
6122 | struct ofputil_table_features *features) | |
6123 | { | |
6124 | const struct ofp_header *oh; | |
6125 | ||
6fd6ed71 | 6126 | if (!msg->header) { |
3c1bb396 BP |
6127 | ofpraw_pull_assert(msg); |
6128 | } | |
6fd6ed71 | 6129 | oh = msg->header; |
3c1bb396 | 6130 | |
6fd6ed71 | 6131 | if (!msg->size) { |
3c1bb396 BP |
6132 | return EOF; |
6133 | } | |
6134 | ||
6135 | memset(stats, 0, sizeof *stats); | |
6136 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6137 | features->supports_eviction = -1; |
6138 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6139 | |
6140 | switch ((enum ofp_version) oh->version) { | |
6141 | case OFP10_VERSION: | |
6142 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6143 | ||
6144 | case OFP11_VERSION: | |
6145 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6146 | ||
6147 | case OFP12_VERSION: | |
6148 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6149 | ||
6150 | case OFP13_VERSION: | |
6151 | case OFP14_VERSION: | |
6152 | case OFP15_VERSION: | |
6153 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
6154 | ||
6155 | default: | |
6156 | OVS_NOT_REACHED(); | |
6157 | } | |
307975da SH |
6158 | } |
6159 | \f | |
2b07c8b1 BP |
6160 | /* ofputil_flow_monitor_request */ |
6161 | ||
6162 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6163 | * ofputil_flow_monitor_request in 'rq'. | |
6164 | * | |
6165 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6166 | * message. Calling this function multiple times for a single 'msg' iterates | |
6167 | * through the requests. The caller must initially leave 'msg''s layer | |
6168 | * pointers null and not modify them between calls. | |
6169 | * | |
6170 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6171 | * otherwise an OFPERR_* value. */ | |
6172 | int | |
6173 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6174 | struct ofpbuf *msg) | |
6175 | { | |
6176 | struct nx_flow_monitor_request *nfmr; | |
6177 | uint16_t flags; | |
6178 | ||
6fd6ed71 | 6179 | if (!msg->header) { |
982697a4 | 6180 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6181 | } |
6182 | ||
6fd6ed71 | 6183 | if (!msg->size) { |
2b07c8b1 BP |
6184 | return EOF; |
6185 | } | |
6186 | ||
6187 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6188 | if (!nfmr) { | |
437d0d22 | 6189 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6190 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6191 | return OFPERR_OFPBRC_BAD_LEN; |
6192 | } | |
6193 | ||
6194 | flags = ntohs(nfmr->flags); | |
6195 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6196 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6197 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6198 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6199 | flags); | |
04f9f286 | 6200 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6201 | } |
6202 | ||
6203 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6204 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6205 | } | |
6206 | ||
6207 | rq->id = ntohl(nfmr->id); | |
6208 | rq->flags = flags; | |
4e022ec0 | 6209 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6210 | rq->table_id = nfmr->table_id; |
6211 | ||
81a76618 | 6212 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
6213 | } |
6214 | ||
6215 | void | |
6216 | ofputil_append_flow_monitor_request( | |
6217 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6218 | { | |
6219 | struct nx_flow_monitor_request *nfmr; | |
6220 | size_t start_ofs; | |
6221 | int match_len; | |
6222 | ||
6fd6ed71 | 6223 | if (!msg->size) { |
982697a4 | 6224 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6225 | } |
6226 | ||
6fd6ed71 | 6227 | start_ofs = msg->size; |
2b07c8b1 | 6228 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6229 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6230 | |
6231 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6232 | nfmr->id = htonl(rq->id); | |
6233 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6234 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6235 | nfmr->match_len = htons(match_len); |
6236 | nfmr->table_id = rq->table_id; | |
6237 | } | |
6238 | ||
6239 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6240 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6241 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6242 | * |
6243 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6244 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6245 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6246 | * will point into the 'ofpacts' buffer. | |
6247 | * | |
6248 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6249 | * this function multiple times for a single 'msg' iterates through the | |
6250 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6251 | * not modify them between calls. | |
6252 | * | |
6253 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6254 | * otherwise an OFPERR_* value. */ | |
6255 | int | |
6256 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6257 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6258 | { | |
6259 | struct nx_flow_update_header *nfuh; | |
6260 | unsigned int length; | |
e3f8f887 | 6261 | struct ofp_header *oh; |
2b07c8b1 | 6262 | |
6fd6ed71 | 6263 | if (!msg->header) { |
982697a4 | 6264 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6265 | } |
6266 | ||
9abca1e5 | 6267 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6268 | if (!msg->size) { |
2b07c8b1 BP |
6269 | return EOF; |
6270 | } | |
6271 | ||
6fd6ed71 | 6272 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6273 | goto bad_len; |
6274 | } | |
6275 | ||
6fd6ed71 | 6276 | oh = msg->header; |
e3f8f887 | 6277 | |
6fd6ed71 | 6278 | nfuh = msg->data; |
2b07c8b1 BP |
6279 | update->event = ntohs(nfuh->event); |
6280 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6281 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6282 | goto bad_len; |
6283 | } | |
6284 | ||
6285 | if (update->event == NXFME_ABBREV) { | |
6286 | struct nx_flow_update_abbrev *nfua; | |
6287 | ||
6288 | if (length != sizeof *nfua) { | |
6289 | goto bad_len; | |
6290 | } | |
6291 | ||
6292 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6293 | update->xid = nfua->xid; | |
6294 | return 0; | |
6295 | } else if (update->event == NXFME_ADDED | |
6296 | || update->event == NXFME_DELETED | |
6297 | || update->event == NXFME_MODIFIED) { | |
6298 | struct nx_flow_update_full *nfuf; | |
6299 | unsigned int actions_len; | |
6300 | unsigned int match_len; | |
6301 | enum ofperr error; | |
6302 | ||
6303 | if (length < sizeof *nfuf) { | |
6304 | goto bad_len; | |
6305 | } | |
6306 | ||
6307 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6308 | match_len = ntohs(nfuf->match_len); | |
6309 | if (sizeof *nfuf + match_len > length) { | |
6310 | goto bad_len; | |
6311 | } | |
6312 | ||
6313 | update->reason = ntohs(nfuf->reason); | |
6314 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6315 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6316 | update->table_id = nfuf->table_id; | |
6317 | update->cookie = nfuf->cookie; | |
81a76618 | 6318 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6319 | |
81a76618 | 6320 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6321 | if (error) { |
6322 | return error; | |
6323 | } | |
6324 | ||
6325 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6326 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6327 | ofpacts); | |
2b07c8b1 BP |
6328 | if (error) { |
6329 | return error; | |
6330 | } | |
6331 | ||
6fd6ed71 PS |
6332 | update->ofpacts = ofpacts->data; |
6333 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6334 | return 0; |
6335 | } else { | |
6336 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6337 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6338 | ntohs(nfuh->event)); | |
15549878 | 6339 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6340 | } |
6341 | ||
6342 | bad_len: | |
437d0d22 | 6343 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6344 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6345 | return OFPERR_OFPBRC_BAD_LEN; |
6346 | } | |
6347 | ||
6348 | uint32_t | |
6349 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6350 | { | |
982697a4 BP |
6351 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6352 | ||
6353 | return ntohl(cancel->id); | |
2b07c8b1 | 6354 | } |
9e1fd49b | 6355 | |
2b07c8b1 BP |
6356 | struct ofpbuf * |
6357 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6358 | { | |
6359 | struct nx_flow_monitor_cancel *nfmc; | |
6360 | struct ofpbuf *msg; | |
6361 | ||
982697a4 BP |
6362 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6363 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6364 | nfmc->id = htonl(id); |
6365 | return msg; | |
6366 | } | |
6367 | ||
6368 | void | |
ca6ba700 | 6369 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6370 | { |
6371 | struct ofpbuf *msg; | |
6372 | ||
982697a4 BP |
6373 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6374 | htonl(0), 1024); | |
2b07c8b1 BP |
6375 | |
6376 | list_init(replies); | |
6377 | list_push_back(replies, &msg->list_node); | |
6378 | } | |
6379 | ||
6380 | void | |
6381 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6382 | struct ovs_list *replies) |
2b07c8b1 | 6383 | { |
e28ac5cf | 6384 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6385 | struct nx_flow_update_header *nfuh; |
6386 | struct ofpbuf *msg; | |
6387 | size_t start_ofs; | |
6388 | ||
6389 | msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 6390 | start_ofs = msg->size; |
2b07c8b1 BP |
6391 | |
6392 | if (update->event == NXFME_ABBREV) { | |
6393 | struct nx_flow_update_abbrev *nfua; | |
6394 | ||
6395 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6396 | nfua->xid = update->xid; | |
6397 | } else { | |
6398 | struct nx_flow_update_full *nfuf; | |
6399 | int match_len; | |
6400 | ||
6401 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6402 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6403 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6404 | version); | |
2b07c8b1 BP |
6405 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6406 | nfuf->reason = htons(update->reason); | |
81a76618 | 6407 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6408 | nfuf->idle_timeout = htons(update->idle_timeout); |
6409 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6410 | nfuf->match_len = htons(match_len); | |
6411 | nfuf->table_id = update->table_id; | |
6412 | nfuf->cookie = update->cookie; | |
6413 | } | |
6414 | ||
6415 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6416 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6417 | nfuh->event = htons(update->event); |
6418 | ||
982697a4 | 6419 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6420 | } |
6421 | \f | |
c6a93eb7 | 6422 | struct ofpbuf * |
de0f3156 SH |
6423 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6424 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6425 | { |
de0f3156 | 6426 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6427 | struct ofpbuf *msg; |
6428 | size_t size; | |
6429 | ||
982697a4 | 6430 | size = po->ofpacts_len; |
c6a93eb7 BP |
6431 | if (po->buffer_id == UINT32_MAX) { |
6432 | size += po->packet_len; | |
6433 | } | |
6434 | ||
de0f3156 SH |
6435 | switch (ofp_version) { |
6436 | case OFP10_VERSION: { | |
31a9e63f | 6437 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6438 | size_t actions_ofs; |
6439 | ||
6440 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6441 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6442 | actions_ofs = msg->size; |
e3f8f887 JR |
6443 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6444 | ofp_version); | |
de0f3156 | 6445 | |
6fd6ed71 | 6446 | opo = msg->msg; |
de0f3156 | 6447 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6448 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6449 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6450 | break; |
6451 | } | |
f25d0cf3 | 6452 | |
de0f3156 | 6453 | case OFP11_VERSION: |
2e1ae200 | 6454 | case OFP12_VERSION: |
c37c0382 | 6455 | case OFP13_VERSION: |
42dccab5 BP |
6456 | case OFP14_VERSION: |
6457 | case OFP15_VERSION: { | |
7c1b1a0d SH |
6458 | struct ofp11_packet_out *opo; |
6459 | size_t len; | |
6460 | ||
6461 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6462 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6463 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6464 | ofp_version); | |
6fd6ed71 | 6465 | opo = msg->msg; |
7c1b1a0d SH |
6466 | opo->buffer_id = htonl(po->buffer_id); |
6467 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6468 | opo->actions_len = htons(len); | |
6469 | break; | |
6470 | } | |
6471 | ||
de0f3156 | 6472 | default: |
428b2edd | 6473 | OVS_NOT_REACHED(); |
de0f3156 | 6474 | } |
f25d0cf3 | 6475 | |
c6a93eb7 BP |
6476 | if (po->buffer_id == UINT32_MAX) { |
6477 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6478 | } | |
f25d0cf3 | 6479 | |
982697a4 | 6480 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6481 | |
6482 | return msg; | |
6483 | } | |
d1e2cf21 | 6484 | \f |
fa37b408 BP |
6485 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6486 | struct ofpbuf * | |
1a126c0c | 6487 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6488 | { |
1a126c0c | 6489 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6490 | htonl(0), 0); |
fa37b408 BP |
6491 | } |
6492 | ||
6493 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6494 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6495 | struct ofpbuf * | |
6496 | make_echo_reply(const struct ofp_header *rq) | |
6497 | { | |
982697a4 BP |
6498 | struct ofpbuf rq_buf; |
6499 | struct ofpbuf *reply; | |
6500 | ||
6501 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
6502 | ofpraw_pull_assert(&rq_buf); | |
6503 | ||
6fd6ed71 PS |
6504 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); |
6505 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
982697a4 | 6506 | return reply; |
fa37b408 BP |
6507 | } |
6508 | ||
efb80167 | 6509 | struct ofpbuf * |
a0ae0b6e | 6510 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6511 | { |
a0ae0b6e SH |
6512 | enum ofpraw type; |
6513 | ||
6514 | switch (ofp_version) { | |
42dccab5 | 6515 | case OFP15_VERSION: |
c37c0382 | 6516 | case OFP14_VERSION: |
2e1ae200 | 6517 | case OFP13_VERSION: |
a0ae0b6e SH |
6518 | case OFP12_VERSION: |
6519 | case OFP11_VERSION: | |
6520 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6521 | break; | |
6522 | ||
6523 | case OFP10_VERSION: | |
6524 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6525 | break; | |
6526 | ||
6527 | default: | |
428b2edd | 6528 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6529 | } |
6530 | ||
6531 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6532 | } |
6533 | ||
7257b535 | 6534 | const char * |
ad99e2ed | 6535 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6536 | { |
ad99e2ed BP |
6537 | switch (frag) { |
6538 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6539 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6540 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6541 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6542 | } |
6543 | ||
428b2edd | 6544 | OVS_NOT_REACHED(); |
7257b535 BP |
6545 | } |
6546 | ||
6547 | bool | |
ad99e2ed BP |
6548 | ofputil_frag_handling_from_string(const char *s, |
6549 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6550 | { |
6551 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6552 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6553 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6554 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6555 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6556 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6557 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6558 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6559 | } else { |
6560 | return false; | |
6561 | } | |
6562 | return true; | |
6563 | } | |
6564 | ||
7b7503ea BP |
6565 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6566 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6567 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6568 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6569 | * |
6570 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6571 | enum ofperr | |
4e022ec0 | 6572 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6573 | { |
6574 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6575 | ||
4e022ec0 AW |
6576 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6577 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6578 | return 0; |
4e022ec0 AW |
6579 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6580 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6581 | return 0; |
6582 | } else { | |
bc146369 | 6583 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6584 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6585 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6586 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6587 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6588 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6589 | } | |
6590 | } | |
6591 | ||
6592 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6593 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6594 | * | |
6595 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6596 | ovs_be32 | |
4e022ec0 | 6597 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6598 | { |
4e022ec0 AW |
6599 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6600 | ? ofp_to_u16(ofp10_port) | |
6601 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6602 | } |
6603 | ||
39dc9082 BP |
6604 | #define OFPUTIL_NAMED_PORTS \ |
6605 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6606 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6607 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6608 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6609 | OFPUTIL_NAMED_PORT(ALL) \ | |
6610 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6611 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6612 | OFPUTIL_NAMED_PORT(ANY) \ |
6613 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6614 | |
6615 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6616 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6617 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6618 | OFPUTIL_NAMED_PORT(NONE) |
6619 | ||
8010100b BP |
6620 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6621 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6622 | * (e.g. "LOCAL"). | |
c6100d92 | 6623 | * |
8010100b BP |
6624 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6625 | * or name. The caller should issue an error message in this case, because | |
6626 | * this function usually does not. (This gives the caller an opportunity to | |
6627 | * look up the port name another way, e.g. by contacting the switch and listing | |
6628 | * the names of all its ports). | |
c6100d92 BP |
6629 | * |
6630 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6631 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6632 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6633 | bool |
4e022ec0 | 6634 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6635 | { |
5b23ff7e | 6636 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6637 | |
5b23ff7e JR |
6638 | if (*s == '-') { |
6639 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6640 | return false; | |
6641 | } | |
8010100b | 6642 | *portp = 0; |
c6100d92 | 6643 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6644 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6645 | /* Pass. */ | |
6646 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6647 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6648 | "be translated to %u when talking to an OF1.1 or " | |
6649 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6650 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6651 | char name[OFP_MAX_PORT_NAME_LEN]; |
6652 | ||
6653 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6654 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6655 | "for compatibility with OpenFlow 1.1 and later", | |
6656 | name, port32); | |
4e022ec0 | 6657 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6658 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6659 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6660 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6661 | return false; |
c6100d92 | 6662 | } else { |
4e022ec0 | 6663 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6664 | } |
4e022ec0 AW |
6665 | |
6666 | *portp = u16_to_ofp(port32); | |
6667 | return true; | |
c6100d92 BP |
6668 | } else { |
6669 | struct pair { | |
6670 | const char *name; | |
4e022ec0 | 6671 | ofp_port_t value; |
c6100d92 BP |
6672 | }; |
6673 | static const struct pair pairs[] = { | |
39dc9082 | 6674 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6675 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6676 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6677 | }; |
6678 | const struct pair *p; | |
39dc9082 | 6679 | |
c6100d92 BP |
6680 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6681 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6682 | *portp = p->value; |
6683 | return true; | |
c6100d92 | 6684 | } |
39dc9082 | 6685 | } |
8010100b | 6686 | return false; |
39dc9082 | 6687 | } |
39dc9082 BP |
6688 | } |
6689 | ||
6690 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6691 | * Most ports' string representation is just the port number, but for special | |
6692 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6693 | void | |
4e022ec0 | 6694 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6695 | { |
28b11432 BP |
6696 | char name[OFP_MAX_PORT_NAME_LEN]; |
6697 | ||
6698 | ofputil_port_to_string(port, name, sizeof name); | |
6699 | ds_put_cstr(s, name); | |
6700 | } | |
39dc9082 | 6701 | |
28b11432 BP |
6702 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6703 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6704 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6705 | * by name, e.g. "LOCAL". */ | |
6706 | void | |
6707 | ofputil_port_to_string(ofp_port_t port, | |
6708 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6709 | { | |
39dc9082 | 6710 | switch (port) { |
28b11432 BP |
6711 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6712 | case OFPP_##NAME: \ | |
6713 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6714 | break; | |
39dc9082 BP |
6715 | OFPUTIL_NAMED_PORTS |
6716 | #undef OFPUTIL_NAMED_PORT | |
6717 | ||
6718 | default: | |
28b11432 BP |
6719 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6720 | break; | |
39dc9082 | 6721 | } |
39dc9082 BP |
6722 | } |
6723 | ||
7395c052 NZ |
6724 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6725 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6726 | * (either "ANY" or "ALL"). | |
6727 | * | |
6728 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6729 | * name. */ | |
6730 | bool | |
6731 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6732 | { | |
6733 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 6734 | *group_idp = OFPG_ANY; |
7395c052 | 6735 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 6736 | *group_idp = OFPG_ALL; |
7395c052 NZ |
6737 | } else if (!str_to_uint(s, 10, group_idp)) { |
6738 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6739 | "32-bit nonnegative integers or the keywords ANY or " | |
6740 | "ALL.)", s); | |
6741 | return false; | |
6742 | } | |
6743 | ||
6744 | return true; | |
6745 | } | |
6746 | ||
6747 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6748 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 6749 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
6750 | void |
6751 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6752 | { | |
6753 | char name[MAX_GROUP_NAME_LEN]; | |
6754 | ||
6755 | ofputil_group_to_string(group_id, name, sizeof name); | |
6756 | ds_put_cstr(s, name); | |
6757 | } | |
6758 | ||
6759 | ||
6760 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6761 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 6762 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
6763 | * by name, e.g. "ALL". */ |
6764 | void | |
6765 | ofputil_group_to_string(uint32_t group_id, | |
6766 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6767 | { | |
6768 | switch (group_id) { | |
30ef36c6 | 6769 | case OFPG_ALL: |
7395c052 NZ |
6770 | ovs_strlcpy(namebuf, "ALL", bufsize); |
6771 | break; | |
6772 | ||
30ef36c6 | 6773 | case OFPG_ANY: |
7395c052 NZ |
6774 | ovs_strlcpy(namebuf, "ANY", bufsize); |
6775 | break; | |
6776 | ||
6777 | default: | |
6778 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6779 | break; | |
6780 | } | |
6781 | } | |
6782 | ||
2be393ed JP |
6783 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6784 | * 'ofp_version', tries to pull the first element from the array. If | |
6785 | * successful, initializes '*pp' with an abstract representation of the | |
6786 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6787 | * On an error, returns a positive OFPERR_* value. */ | |
6788 | int | |
2e3fa633 | 6789 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6790 | struct ofputil_phy_port *pp) |
6791 | { | |
8c3cc785 BP |
6792 | memset(pp, 0, sizeof *pp); |
6793 | ||
2e3fa633 SH |
6794 | switch (ofp_version) { |
6795 | case OFP10_VERSION: { | |
2be393ed JP |
6796 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6797 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6798 | } |
6799 | case OFP11_VERSION: | |
2e1ae200 JR |
6800 | case OFP12_VERSION: |
6801 | case OFP13_VERSION: { | |
2be393ed JP |
6802 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6803 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6804 | } | |
c37c0382 | 6805 | case OFP14_VERSION: |
42dccab5 | 6806 | case OFP15_VERSION: |
6fd6ed71 | 6807 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6808 | default: |
428b2edd | 6809 | OVS_NOT_REACHED(); |
2e3fa633 | 6810 | } |
2be393ed JP |
6811 | } |
6812 | ||
3cbd9931 | 6813 | static void |
81a76618 | 6814 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6815 | { |
6816 | enum { | |
6817 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6818 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6819 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6820 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6821 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6822 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6823 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6824 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6825 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6826 | } may_match; |
6827 | ||
6828 | struct flow_wildcards wc; | |
6829 | ||
6830 | /* Figure out what fields may be matched. */ | |
81a76618 | 6831 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6832 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6833 | if (match->flow.nw_proto == IPPROTO_TCP || |
6834 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6835 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6836 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6837 | may_match |= MAY_TP_ADDR; |
6838 | } | |
81a76618 | 6839 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6840 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6841 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6842 | match->flow.nw_proto == IPPROTO_UDP || |
6843 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6844 | may_match |= MAY_TP_ADDR; |
81a76618 | 6845 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6846 | may_match |= MAY_TP_ADDR; |
81a76618 | 6847 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6848 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6849 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6850 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6851 | } | |
6852 | } | |
8087f5ff MM |
6853 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6854 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6855 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6856 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6857 | may_match = MAY_MPLS; | |
1c0b7503 | 6858 | } else { |
b459a924 BP |
6859 | may_match = 0; |
6860 | } | |
6861 | ||
6862 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6863 | wc = match->wc; |
b459a924 | 6864 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6865 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6866 | } |
6867 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6868 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6869 | } |
6870 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6871 | wc.masks.nw_proto = 0; |
b459a924 | 6872 | } |
9e44d715 | 6873 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6874 | wc.masks.nw_tos = 0; |
6875 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6876 | } |
6877 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 6878 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
6879 | } |
6880 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 6881 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 6882 | } |
d78477ec | 6883 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6884 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6885 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6886 | } |
6887 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6888 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6889 | } |
b02475c5 | 6890 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6891 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6892 | } |
b459a924 BP |
6893 | |
6894 | /* Log any changes. */ | |
81a76618 | 6895 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6896 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6897 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6898 | |
81a76618 BP |
6899 | match->wc = wc; |
6900 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6901 | |
6902 | if (log) { | |
81a76618 | 6903 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6904 | VLOG_INFO("normalization changed ofp_match, details:"); |
6905 | VLOG_INFO(" pre: %s", pre); | |
6906 | VLOG_INFO("post: %s", post); | |
6907 | free(pre); | |
6908 | free(post); | |
6909 | } | |
fa37b408 | 6910 | } |
3f09c339 | 6911 | } |
26c112c2 | 6912 | |
81a76618 | 6913 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6914 | * |
6915 | * 1. If the type of level N is known, then only the valid fields for that | |
6916 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6917 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6918 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6919 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6920 | * IPv4 flow. |
6921 | * | |
6922 | * 2. If the type of level N is not known (or not understood by Open | |
6923 | * vSwitch), then no fields at all for that level may be specified. For | |
6924 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6925 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6926 | * SCTP flow. |
6927 | * | |
81a76618 | 6928 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6929 | * message. */ |
6930 | void | |
81a76618 | 6931 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6932 | { |
81a76618 | 6933 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6934 | } |
6935 | ||
81a76618 BP |
6936 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6937 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6938 | * sense for use on flows received from elsewhere (so that a bug in the program |
6939 | * that sent them can be reported and corrected). */ | |
6940 | void | |
81a76618 | 6941 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6942 | { |
81a76618 | 6943 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6944 | } |
6945 | ||
0ff22822 BP |
6946 | /* Parses a key or a key-value pair from '*stringp'. |
6947 | * | |
6948 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6949 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6950 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6951 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6952 | * terminators. Returns true. | |
6953 | * | |
6954 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6955 | * NULL and returns false. */ | |
6956 | bool | |
6957 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6958 | { | |
6959 | char *pos, *key, *value; | |
6960 | size_t key_len; | |
6961 | ||
6962 | pos = *stringp; | |
6963 | pos += strspn(pos, ", \t\r\n"); | |
6964 | if (*pos == '\0') { | |
6965 | *keyp = *valuep = NULL; | |
6966 | return false; | |
6967 | } | |
6968 | ||
6969 | key = pos; | |
6970 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6971 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6972 | /* The value can be separated by a colon. */ | |
6973 | size_t value_len; | |
6974 | ||
6975 | value = key + key_len + 1; | |
6976 | value_len = strcspn(value, ", \t\r\n"); | |
6977 | pos = value + value_len + (value[value_len] != '\0'); | |
6978 | value[value_len] = '\0'; | |
6979 | } else if (key[key_len] == '(') { | |
6980 | /* The value can be surrounded by balanced parentheses. The outermost | |
6981 | * set of parentheses is removed. */ | |
6982 | int level = 1; | |
6983 | size_t value_len; | |
6984 | ||
6985 | value = key + key_len + 1; | |
6986 | for (value_len = 0; level > 0; value_len++) { | |
6987 | switch (value[value_len]) { | |
6988 | case '\0': | |
33cadc50 BP |
6989 | level = 0; |
6990 | break; | |
0ff22822 BP |
6991 | |
6992 | case '(': | |
6993 | level++; | |
6994 | break; | |
6995 | ||
6996 | case ')': | |
6997 | level--; | |
6998 | break; | |
6999 | } | |
7000 | } | |
7001 | value[value_len - 1] = '\0'; | |
7002 | pos = value + value_len; | |
7003 | } else { | |
7004 | /* There might be no value at all. */ | |
7005 | value = key + key_len; /* Will become the empty string below. */ | |
7006 | pos = key + key_len + (key[key_len] != '\0'); | |
7007 | } | |
7008 | key[key_len] = '\0'; | |
7009 | ||
7010 | *stringp = pos; | |
7011 | *keyp = key; | |
7012 | *valuep = value; | |
7013 | return true; | |
7014 | } | |
f8e4867e SH |
7015 | |
7016 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7017 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7018 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7019 | struct ofpbuf * | |
4e022ec0 | 7020 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7021 | { |
7022 | struct ofpbuf *request; | |
7023 | ||
7024 | switch (ofp_version) { | |
7025 | case OFP10_VERSION: { | |
7026 | struct ofp10_port_stats_request *req; | |
7027 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7028 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7029 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7030 | break; |
7031 | } | |
7032 | case OFP11_VERSION: | |
2e1ae200 | 7033 | case OFP12_VERSION: |
c37c0382 | 7034 | case OFP13_VERSION: |
42dccab5 BP |
7035 | case OFP14_VERSION: |
7036 | case OFP15_VERSION: { | |
f8e4867e SH |
7037 | struct ofp11_port_stats_request *req; |
7038 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7039 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7040 | req->port_no = ofputil_port_to_ofp11(port); | |
7041 | break; | |
7042 | } | |
7043 | default: | |
428b2edd | 7044 | OVS_NOT_REACHED(); |
f8e4867e SH |
7045 | } |
7046 | ||
7047 | return request; | |
7048 | } | |
7049 | ||
7050 | static void | |
7051 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7052 | struct ofp10_port_stats *ps10) | |
7053 | { | |
4e022ec0 | 7054 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7055 | memset(ps10->pad, 0, sizeof ps10->pad); |
7056 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7057 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7058 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7059 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7060 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7061 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7062 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7063 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7064 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7065 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7066 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7067 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7068 | } | |
7069 | ||
7070 | static void | |
7071 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7072 | struct ofp11_port_stats *ps11) | |
7073 | { | |
7074 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7075 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7076 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7077 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7078 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7079 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7080 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7081 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7082 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7083 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7084 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7085 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7086 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7087 | ps11->collisions = htonll(ops->stats.collisions); | |
7088 | } | |
7089 | ||
2e1ae200 JR |
7090 | static void |
7091 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7092 | struct ofp13_port_stats *ps13) | |
7093 | { | |
7094 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7095 | ps13->duration_sec = htonl(ops->duration_sec); |
7096 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7097 | } |
7098 | ||
5469537b BP |
7099 | static void |
7100 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7101 | struct ovs_list *replies) |
5469537b BP |
7102 | { |
7103 | struct ofp14_port_stats_prop_ethernet *eth; | |
7104 | struct ofp14_port_stats *ps14; | |
7105 | struct ofpbuf *reply; | |
7106 | ||
7107 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7108 | ||
7109 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7110 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7111 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7112 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7113 | ps14->duration_sec = htonl(ops->duration_sec); | |
7114 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7115 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7116 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7117 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7118 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7119 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7120 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7121 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7122 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7123 | ||
7124 | eth = ofpbuf_put_uninit(reply, sizeof *eth); | |
7125 | eth->type = htons(OFPPSPT14_ETHERNET); | |
7126 | eth->length = htons(sizeof *eth); | |
7127 | memset(eth->pad, 0, sizeof eth->pad); | |
7128 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7129 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7130 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7131 | eth->collisions = htonll(ops->stats.collisions); | |
7132 | } | |
2e1ae200 | 7133 | |
ad4c35fe | 7134 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7135 | void |
ca6ba700 | 7136 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7137 | const struct ofputil_port_stats *ops) |
7138 | { | |
e28ac5cf | 7139 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7140 | case OFP13_VERSION: { |
7141 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7142 | ofputil_port_stats_to_ofp13(ops, reply); | |
7143 | break; | |
7144 | } | |
f8e4867e SH |
7145 | case OFP12_VERSION: |
7146 | case OFP11_VERSION: { | |
7147 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7148 | ofputil_port_stats_to_ofp11(ops, reply); | |
7149 | break; | |
7150 | } | |
7151 | ||
7152 | case OFP10_VERSION: { | |
7153 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7154 | ofputil_port_stats_to_ofp10(ops, reply); | |
7155 | break; | |
7156 | } | |
7157 | ||
c37c0382 | 7158 | case OFP14_VERSION: |
42dccab5 | 7159 | case OFP15_VERSION: |
5469537b | 7160 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7161 | break; |
7162 | ||
f8e4867e | 7163 | default: |
428b2edd | 7164 | OVS_NOT_REACHED(); |
f8e4867e SH |
7165 | } |
7166 | } | |
7167 | ||
7168 | static enum ofperr | |
7169 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7170 | const struct ofp10_port_stats *ps10) | |
7171 | { | |
7172 | memset(ops, 0, sizeof *ops); | |
7173 | ||
4e022ec0 | 7174 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7175 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7176 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7177 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7178 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7179 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7180 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7181 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7182 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7183 | ops->stats.rx_frame_errors = | |
7184 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7185 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7186 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7187 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7188 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7189 | |
7190 | return 0; | |
7191 | } | |
7192 | ||
7193 | static enum ofperr | |
7194 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7195 | const struct ofp11_port_stats *ps11) | |
7196 | { | |
7197 | enum ofperr error; | |
7198 | ||
7199 | memset(ops, 0, sizeof *ops); | |
7200 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7201 | if (error) { | |
7202 | return error; | |
7203 | } | |
7204 | ||
7205 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7206 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7207 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7208 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7209 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7210 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7211 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7212 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7213 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7214 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7215 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7216 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7217 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7218 | |
7219 | return 0; | |
7220 | } | |
7221 | ||
2e1ae200 JR |
7222 | static enum ofperr |
7223 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7224 | const struct ofp13_port_stats *ps13) | |
7225 | { | |
65e0be10 | 7226 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7227 | if (!error) { |
65e0be10 BP |
7228 | ops->duration_sec = ntohl(ps13->duration_sec); |
7229 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7230 | } |
2e1ae200 JR |
7231 | return error; |
7232 | } | |
7233 | ||
5469537b BP |
7234 | static enum ofperr |
7235 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7236 | struct ofputil_port_stats *ops) | |
be0c30df | 7237 | { |
6fd6ed71 | 7238 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7239 | |
6fd6ed71 | 7240 | if (payload->size != sizeof *eth) { |
5469537b BP |
7241 | return OFPERR_OFPBPC_BAD_LEN; |
7242 | } | |
7243 | ||
7244 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7245 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7246 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7247 | ops->stats.collisions = ntohll(eth->collisions); | |
7248 | ||
7249 | return 0; | |
7250 | } | |
7251 | ||
7252 | static enum ofperr | |
7253 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7254 | struct ofpbuf *msg) | |
7255 | { | |
7256 | const struct ofp14_port_stats *ps14; | |
7257 | struct ofpbuf properties; | |
7258 | enum ofperr error; | |
7259 | size_t len; | |
7260 | ||
7261 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
7262 | if (!ps14) { | |
7263 | return OFPERR_OFPBRC_BAD_LEN; | |
7264 | } | |
7265 | ||
7266 | len = ntohs(ps14->length); | |
6fd6ed71 | 7267 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7268 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7269 | } |
5469537b BP |
7270 | len -= sizeof *ps14; |
7271 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
7272 | ||
7273 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
7274 | if (error) { | |
7275 | return error; | |
7276 | } | |
7277 | ||
7278 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7279 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7280 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7281 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7282 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7283 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7284 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7285 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7286 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7287 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7288 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7289 | ops->stats.rx_over_errors = UINT64_MAX; | |
7290 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7291 | ops->stats.collisions = UINT64_MAX; | |
7292 | ||
6fd6ed71 | 7293 | while (properties.size > 0) { |
5469537b BP |
7294 | struct ofpbuf payload; |
7295 | enum ofperr error; | |
7296 | uint16_t type; | |
7297 | ||
7298 | error = ofputil_pull_property(&properties, &payload, &type); | |
7299 | if (error) { | |
7300 | return error; | |
7301 | } | |
7302 | ||
7303 | switch (type) { | |
7304 | case OFPPSPT14_ETHERNET: | |
7305 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7306 | break; | |
7307 | ||
7308 | default: | |
7309 | log_property(true, "unknown port stats property %"PRIu16, type); | |
7310 | error = 0; | |
7311 | break; | |
7312 | } | |
7313 | ||
7314 | if (error) { | |
7315 | return error; | |
7316 | } | |
7317 | } | |
7318 | ||
7319 | return 0; | |
be0c30df | 7320 | } |
2e1ae200 | 7321 | |
f8e4867e SH |
7322 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7323 | * message 'oh'. */ | |
7324 | size_t | |
7325 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7326 | { | |
5469537b | 7327 | struct ofputil_port_stats ps; |
f8e4867e | 7328 | struct ofpbuf b; |
5469537b | 7329 | size_t n = 0; |
f8e4867e SH |
7330 | |
7331 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7332 | ofpraw_pull_assert(&b); | |
5469537b BP |
7333 | while (!ofputil_decode_port_stats(&ps, &b)) { |
7334 | n++; | |
7335 | } | |
7336 | return n; | |
f8e4867e SH |
7337 | } |
7338 | ||
7339 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7340 | * ofputil_port_stats in 'ps'. | |
7341 | * | |
7342 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7343 | * message. Calling this function multiple times for a single 'msg' iterates | |
7344 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7345 | * null and not modify them between calls. | |
7346 | * | |
7347 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7348 | * otherwise a positive errno value. */ | |
7349 | int | |
7350 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7351 | { | |
7352 | enum ofperr error; | |
7353 | enum ofpraw raw; | |
7354 | ||
6fd6ed71 | 7355 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7356 | : ofpraw_pull(&raw, msg)); |
7357 | if (error) { | |
7358 | return error; | |
7359 | } | |
7360 | ||
6fd6ed71 | 7361 | if (!msg->size) { |
f8e4867e | 7362 | return EOF; |
5469537b BP |
7363 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7364 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7365 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7366 | const struct ofp13_port_stats *ps13; | |
7367 | ||
7368 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7369 | if (!ps13) { | |
7370 | goto bad_len; | |
7371 | } | |
7372 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7373 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7374 | const struct ofp11_port_stats *ps11; | |
7375 | ||
7376 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7377 | if (!ps11) { | |
2e1ae200 | 7378 | goto bad_len; |
f8e4867e SH |
7379 | } |
7380 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7381 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7382 | const struct ofp10_port_stats *ps10; | |
7383 | ||
7384 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7385 | if (!ps10) { | |
2e1ae200 | 7386 | goto bad_len; |
f8e4867e SH |
7387 | } |
7388 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7389 | } else { | |
428b2edd | 7390 | OVS_NOT_REACHED(); |
f8e4867e SH |
7391 | } |
7392 | ||
2e1ae200 | 7393 | bad_len: |
437d0d22 | 7394 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7395 | "bytes at end", msg->size); |
2e1ae200 | 7396 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7397 | } |
7398 | ||
7399 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7400 | * port number and stores the latter in '*ofp10_port'. | |
7401 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7402 | enum ofperr | |
7403 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7404 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7405 | { |
7406 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7407 | case OFP15_VERSION: |
5469537b | 7408 | case OFP14_VERSION: |
2e1ae200 | 7409 | case OFP13_VERSION: |
f8e4867e SH |
7410 | case OFP12_VERSION: |
7411 | case OFP11_VERSION: { | |
7412 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7413 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7414 | } | |
7415 | ||
7416 | case OFP10_VERSION: { | |
7417 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7418 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7419 | return 0; |
7420 | } | |
7421 | ||
7422 | default: | |
428b2edd | 7423 | OVS_NOT_REACHED(); |
f8e4867e SH |
7424 | } |
7425 | } | |
64626975 | 7426 | |
7395c052 NZ |
7427 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7428 | void | |
ca6ba700 | 7429 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7430 | { |
5f03c983 | 7431 | struct ofputil_bucket *bucket; |
7395c052 | 7432 | |
5f03c983 | 7433 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7434 | free(bucket->ofpacts); |
7435 | free(bucket); | |
7436 | } | |
7437 | } | |
7438 | ||
103b4866 SH |
7439 | /* Clones 'bucket' and its ofpacts data */ |
7440 | static struct ofputil_bucket * | |
7441 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7442 | { | |
7443 | struct ofputil_bucket *new; | |
7444 | ||
7445 | new = xmemdup(bucket, sizeof *bucket); | |
7446 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7447 | ||
7448 | return new; | |
7449 | } | |
7450 | ||
7451 | /* Clones each of the buckets in the list 'src' appending them | |
7452 | * in turn to 'dest' which should be an initialised list. | |
7453 | * An exception is that if the pointer value of a bucket in 'src' | |
7454 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7455 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7456 | * be cloned and appended to 'dest'. */ | |
7457 | void | |
ca6ba700 | 7458 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7459 | const struct ofputil_bucket *skip) |
7460 | { | |
7461 | struct ofputil_bucket *bucket; | |
7462 | ||
7463 | LIST_FOR_EACH (bucket, list_node, src) { | |
7464 | struct ofputil_bucket *new_bucket; | |
7465 | ||
7466 | if (bucket == skip) { | |
7467 | continue; | |
7468 | } | |
7469 | ||
7470 | new_bucket = ofputil_bucket_clone_data(bucket); | |
7471 | list_push_back(dest, &new_bucket->list_node); | |
7472 | } | |
7473 | } | |
7474 | ||
7475 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7476 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7477 | struct ofputil_bucket * | |
ca6ba700 | 7478 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7479 | { |
7480 | struct ofputil_bucket *bucket; | |
7481 | ||
7482 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7483 | return NULL; | |
7484 | } | |
7485 | ||
7486 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7487 | if (bucket->bucket_id == bucket_id) { | |
7488 | return bucket; | |
7489 | } | |
7490 | } | |
7491 | ||
7492 | return NULL; | |
7493 | } | |
7494 | ||
7495 | /* Returns true if more than one bucket in the list 'buckets' | |
7496 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7497 | bool |
ca6ba700 | 7498 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7499 | { |
7500 | struct ofputil_bucket *i, *j; | |
7501 | ||
7502 | LIST_FOR_EACH (i, list_node, buckets) { | |
7503 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7504 | if (i == j) { | |
7505 | break; | |
7506 | } | |
7507 | if (i->bucket_id == j->bucket_id) { | |
7508 | return true; | |
7509 | } | |
7510 | } | |
7511 | } | |
7512 | ||
7513 | return false; | |
7514 | } | |
7515 | ||
103b4866 SH |
7516 | /* Returns the bucket at the front of the list 'buckets'. |
7517 | * Undefined if 'buckets is empty. */ | |
7518 | struct ofputil_bucket * | |
ca6ba700 | 7519 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7520 | { |
7521 | static struct ofputil_bucket *bucket; | |
7522 | ||
7523 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
7524 | ||
7525 | return bucket; | |
7526 | } | |
7527 | ||
7528 | /* Returns the bucket at the back of the list 'buckets'. | |
7529 | * Undefined if 'buckets is empty. */ | |
7530 | struct ofputil_bucket * | |
ca6ba700 | 7531 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7532 | { |
7533 | static struct ofputil_bucket *bucket; | |
7534 | ||
7535 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
7536 | ||
7537 | return bucket; | |
7538 | } | |
7539 | ||
7395c052 NZ |
7540 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7541 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7542 | * for all groups.) | |
7543 | * | |
7544 | * Group statistics include packet and byte counts for each group. */ | |
7545 | struct ofpbuf * | |
7546 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7547 | uint32_t group_id) | |
7548 | { | |
7549 | struct ofpbuf *request; | |
7550 | ||
7551 | switch (ofp_version) { | |
7552 | case OFP10_VERSION: | |
7553 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7554 | "(\'-O OpenFlow11\')"); | |
7555 | case OFP11_VERSION: | |
7556 | case OFP12_VERSION: | |
c37c0382 | 7557 | case OFP13_VERSION: |
42dccab5 BP |
7558 | case OFP14_VERSION: |
7559 | case OFP15_VERSION: { | |
7395c052 NZ |
7560 | struct ofp11_group_stats_request *req; |
7561 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7562 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7563 | req->group_id = htonl(group_id); | |
7564 | break; | |
7565 | } | |
7566 | default: | |
428b2edd | 7567 | OVS_NOT_REACHED(); |
7395c052 NZ |
7568 | } |
7569 | ||
7570 | return request; | |
7571 | } | |
7572 | ||
bc65c25a SH |
7573 | void |
7574 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7575 | { | |
7576 | ofputil_bucket_list_destroy(&gd->buckets); | |
7577 | free(&gd->props.fields); | |
7578 | } | |
7579 | ||
19187a71 BP |
7580 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7581 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7582 | * requested. */ | |
7583 | uint32_t | |
7584 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7585 | { | |
7586 | struct ofpbuf request; | |
7587 | enum ofpraw raw; | |
7588 | ||
7589 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
7590 | raw = ofpraw_pull_assert(&request); | |
7591 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
7592 | return OFPG_ALL; | |
7593 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7594 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7595 | return ntohl(*group_id); | |
7596 | } else { | |
7597 | OVS_NOT_REACHED(); | |
7598 | } | |
7599 | } | |
7600 | ||
7395c052 | 7601 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7602 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7603 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7604 | * groups). | |
7395c052 NZ |
7605 | * |
7606 | * Group descriptions include the bucket and action configuration for each | |
7607 | * group. */ | |
7608 | struct ofpbuf * | |
19187a71 BP |
7609 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7610 | uint32_t group_id) | |
7395c052 NZ |
7611 | { |
7612 | struct ofpbuf *request; | |
7613 | ||
7614 | switch (ofp_version) { | |
7615 | case OFP10_VERSION: | |
7616 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7617 | "(\'-O OpenFlow11\')"); | |
7618 | case OFP11_VERSION: | |
7619 | case OFP12_VERSION: | |
c37c0382 AC |
7620 | case OFP13_VERSION: |
7621 | case OFP14_VERSION: | |
19187a71 BP |
7622 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7623 | ofp_version, 0); | |
7624 | break; | |
d4d3f33e MT |
7625 | case OFP15_VERSION:{ |
7626 | struct ofp15_group_desc_request *req; | |
19187a71 BP |
7627 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7628 | ofp_version, 0); | |
d4d3f33e MT |
7629 | req = ofpbuf_put_zeros(request, sizeof *req); |
7630 | req->group_id = htonl(group_id); | |
7395c052 | 7631 | break; |
d4d3f33e | 7632 | } |
7395c052 | 7633 | default: |
428b2edd | 7634 | OVS_NOT_REACHED(); |
7395c052 NZ |
7635 | } |
7636 | ||
7637 | return request; | |
7638 | } | |
7639 | ||
dcbe78ad | 7640 | static void |
63759e71 AZ |
7641 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7642 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7643 | { |
7395c052 NZ |
7644 | int i; |
7645 | ||
dcbe78ad AZ |
7646 | for (i = 0; i < gs->n_buckets; i++) { |
7647 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7648 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7649 | } |
7395c052 NZ |
7650 | } |
7651 | ||
7652 | static void | |
dcbe78ad | 7653 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7654 | struct ofp11_group_stats *gs11, size_t length, |
7655 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7656 | { |
63759e71 AZ |
7657 | memset(gs11, 0, sizeof *gs11); |
7658 | gs11->length = htons(length); | |
7659 | gs11->group_id = htonl(gs->group_id); | |
7660 | gs11->ref_count = htonl(gs->ref_count); | |
7661 | gs11->packet_count = htonll(gs->packet_count); | |
7662 | gs11->byte_count = htonll(gs->byte_count); | |
7663 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7664 | } |
7395c052 | 7665 | |
dcbe78ad AZ |
7666 | static void |
7667 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7668 | struct ofp13_group_stats *gs13, size_t length, |
7669 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7670 | { |
63759e71 | 7671 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7672 | gs13->duration_sec = htonl(gs->duration_sec); |
7673 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7674 | |
7395c052 NZ |
7675 | } |
7676 | ||
dcbe78ad | 7677 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7678 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7679 | * must have originally been initialized with ofpmp_init(). */ | |
7680 | void | |
ca6ba700 | 7681 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 7682 | const struct ofputil_group_stats *gs) |
7395c052 | 7683 | { |
63759e71 AZ |
7684 | size_t bucket_counter_size; |
7685 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7686 | size_t length; |
7395c052 | 7687 | |
63759e71 AZ |
7688 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7689 | ||
e28ac5cf | 7690 | switch (ofpmp_version(replies)) { |
7395c052 | 7691 | case OFP11_VERSION: |
dcbe78ad | 7692 | case OFP12_VERSION:{ |
63759e71 | 7693 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7694 | |
63759e71 AZ |
7695 | length = sizeof *gs11 + bucket_counter_size; |
7696 | gs11 = ofpmp_append(replies, length); | |
7697 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7698 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7699 | break; |
7700 | } | |
7395c052 NZ |
7701 | |
7702 | case OFP13_VERSION: | |
42dccab5 BP |
7703 | case OFP14_VERSION: |
7704 | case OFP15_VERSION: { | |
63759e71 | 7705 | struct ofp13_group_stats *gs13; |
7395c052 | 7706 | |
63759e71 AZ |
7707 | length = sizeof *gs13 + bucket_counter_size; |
7708 | gs13 = ofpmp_append(replies, length); | |
7709 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7710 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7711 | break; |
7712 | } | |
c37c0382 | 7713 | |
7395c052 NZ |
7714 | case OFP10_VERSION: |
7715 | default: | |
428b2edd | 7716 | OVS_NOT_REACHED(); |
7395c052 NZ |
7717 | } |
7718 | } | |
7395c052 NZ |
7719 | /* Returns an OpenFlow group features request for OpenFlow version |
7720 | * 'ofp_version'. */ | |
7721 | struct ofpbuf * | |
7722 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7723 | { | |
7724 | struct ofpbuf *request = NULL; | |
7725 | ||
7726 | switch (ofp_version) { | |
7727 | case OFP10_VERSION: | |
7728 | case OFP11_VERSION: | |
7729 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7730 | "(\'-O OpenFlow12\')"); | |
7731 | case OFP12_VERSION: | |
c37c0382 AC |
7732 | case OFP13_VERSION: |
7733 | case OFP14_VERSION: | |
42dccab5 | 7734 | case OFP15_VERSION: |
7395c052 | 7735 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7736 | ofp_version, 0); |
7395c052 | 7737 | break; |
7395c052 | 7738 | default: |
428b2edd | 7739 | OVS_NOT_REACHED(); |
7395c052 NZ |
7740 | } |
7741 | ||
7742 | return request; | |
7743 | } | |
7744 | ||
7745 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7746 | * group features request 'request'. */ | |
7747 | struct ofpbuf * | |
7748 | ofputil_encode_group_features_reply( | |
7749 | const struct ofputil_group_features *features, | |
7750 | const struct ofp_header *request) | |
7751 | { | |
7752 | struct ofp12_group_features_stats *ogf; | |
7753 | struct ofpbuf *reply; | |
08d1e234 | 7754 | int i; |
7395c052 NZ |
7755 | |
7756 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7757 | request->version, request->xid, 0); | |
7758 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7759 | ogf->types = htonl(features->types); | |
7760 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7761 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7762 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7763 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7764 | request->version); | |
7765 | } | |
7395c052 NZ |
7766 | |
7767 | return reply; | |
7768 | } | |
7769 | ||
7770 | /* Decodes group features reply 'oh' into 'features'. */ | |
7771 | void | |
7772 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7773 | struct ofputil_group_features *features) | |
7774 | { | |
7775 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7776 | int i; |
7395c052 NZ |
7777 | |
7778 | features->types = ntohl(ogf->types); | |
7779 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7780 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7781 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7782 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7783 | ogf->actions[i], oh->version); | |
7784 | } | |
7395c052 NZ |
7785 | } |
7786 | ||
7787 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7788 | * group ID and stores the latter in '*group_id'. | |
7789 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7790 | enum ofperr | |
7791 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7792 | uint32_t *group_id) | |
7793 | { | |
7794 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7795 | *group_id = ntohl(gsr11->group_id); | |
7796 | return 0; | |
7797 | } | |
7798 | ||
7799 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7800 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7801 | * caller to eventually free. | |
7395c052 NZ |
7802 | * |
7803 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7804 | * Calling this function multiple times for a single 'msg' iterates through the | |
7805 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7806 | * not modify them between calls. | |
7807 | * | |
7808 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7809 | * otherwise a positive errno value. */ | |
7810 | int | |
7811 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7812 | struct ofputil_group_stats *gs) | |
7813 | { | |
7814 | struct ofp11_bucket_counter *obc; | |
7815 | struct ofp11_group_stats *ogs11; | |
7816 | enum ofpraw raw; | |
7817 | enum ofperr error; | |
7818 | size_t base_len; | |
7819 | size_t length; | |
7820 | size_t i; | |
7821 | ||
646b2a9c | 7822 | gs->bucket_stats = NULL; |
6fd6ed71 | 7823 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
7824 | : ofpraw_pull(&raw, msg)); |
7825 | if (error) { | |
7826 | return error; | |
7827 | } | |
7828 | ||
6fd6ed71 | 7829 | if (!msg->size) { |
7395c052 NZ |
7830 | return EOF; |
7831 | } | |
7832 | ||
7833 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7834 | base_len = sizeof *ogs11; | |
7835 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7836 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7837 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7838 | struct ofp13_group_stats *ogs13; | |
7839 | ||
7840 | base_len = sizeof *ogs13; | |
7841 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7842 | if (ogs13) { | |
7843 | ogs11 = &ogs13->gs; | |
7844 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7845 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7846 | } else { | |
7847 | ogs11 = NULL; | |
7848 | } | |
7849 | } else { | |
428b2edd | 7850 | OVS_NOT_REACHED(); |
7395c052 NZ |
7851 | } |
7852 | ||
7853 | if (!ogs11) { | |
437d0d22 | 7854 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7855 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7856 | return OFPERR_OFPBRC_BAD_LEN; |
7857 | } | |
7858 | length = ntohs(ogs11->length); | |
7859 | if (length < sizeof base_len) { | |
34582733 | 7860 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7861 | ofpraw_get_name(raw), length); |
7862 | return OFPERR_OFPBRC_BAD_LEN; | |
7863 | } | |
7864 | ||
7865 | gs->group_id = ntohl(ogs11->group_id); | |
7866 | gs->ref_count = ntohl(ogs11->ref_count); | |
7867 | gs->packet_count = ntohll(ogs11->packet_count); | |
7868 | gs->byte_count = ntohll(ogs11->byte_count); | |
7869 | ||
7870 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7871 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7872 | if (!obc) { | |
437d0d22 | 7873 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7874 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7875 | return OFPERR_OFPBRC_BAD_LEN; |
7876 | } | |
7877 | ||
646b2a9c | 7878 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7879 | for (i = 0; i < gs->n_buckets; i++) { |
7880 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7881 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7882 | } | |
7883 | ||
7884 | return 0; | |
7885 | } | |
7886 | ||
5097fee5 SH |
7887 | static void |
7888 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7889 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7890 | { | |
7891 | struct ofp11_bucket *ob; | |
7892 | size_t start; | |
7893 | ||
6fd6ed71 | 7894 | start = openflow->size; |
5097fee5 SH |
7895 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7896 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7897 | openflow, ofp_version); | |
7898 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7899 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
7900 | ob->weight = htons(bucket->weight); |
7901 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7902 | ob->watch_group = htonl(bucket->watch_group); | |
7903 | } | |
7904 | ||
18ac06d3 SH |
7905 | static void |
7906 | ofputil_put_ofp15_group_bucket_prop_weight(ovs_be16 weight, | |
7907 | struct ofpbuf *openflow) | |
7908 | { | |
7909 | size_t start_ofs; | |
7910 | struct ofp15_group_bucket_prop_weight *prop; | |
7911 | ||
7912 | start_ofs = start_property(openflow, OFPGBPT15_WEIGHT); | |
7913 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7914 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7915 | prop->weight = weight; | |
7916 | end_property(openflow, start_ofs); | |
7917 | } | |
7918 | ||
7919 | static void | |
7920 | ofputil_put_ofp15_group_bucket_prop_watch(ovs_be32 watch, uint16_t type, | |
7921 | struct ofpbuf *openflow) | |
7922 | { | |
7923 | size_t start_ofs; | |
7924 | struct ofp15_group_bucket_prop_watch *prop; | |
7925 | ||
7926 | start_ofs = start_property(openflow, type); | |
7927 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7928 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7929 | prop->watch = watch; | |
7930 | end_property(openflow, start_ofs); | |
7931 | } | |
7932 | ||
7933 | static void | |
7934 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7935 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7936 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7937 | { | |
7938 | struct ofp15_bucket *ob; | |
7939 | size_t start, actions_start, actions_len; | |
7940 | ||
6fd6ed71 | 7941 | start = openflow->size; |
18ac06d3 SH |
7942 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7943 | ||
6fd6ed71 | 7944 | actions_start = openflow->size; |
18ac06d3 SH |
7945 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7946 | openflow, ofp_version); | |
6fd6ed71 | 7947 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
7948 | |
7949 | if (group_type == OFPGT11_SELECT) { | |
7950 | ofputil_put_ofp15_group_bucket_prop_weight(htons(bucket->weight), | |
7951 | openflow); | |
7952 | } | |
7953 | if (bucket->watch_port != OFPP_ANY) { | |
7954 | ovs_be32 port = ofputil_port_to_ofp11(bucket->watch_port); | |
7955 | ofputil_put_ofp15_group_bucket_prop_watch(port, | |
7956 | OFPGBPT15_WATCH_PORT, | |
7957 | openflow); | |
7958 | } | |
7959 | if (bucket->watch_group != OFPG_ANY) { | |
7960 | ovs_be32 group = htonl(bucket->watch_group); | |
7961 | ofputil_put_ofp15_group_bucket_prop_watch(group, | |
7962 | OFPGBPT15_WATCH_GROUP, | |
7963 | openflow); | |
7964 | } | |
7965 | ||
7966 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7967 | ob->len = htons(openflow->size - start); |
79870963 | 7968 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
7969 | ob->bucket_id = htonl(bucket_id); |
7970 | } | |
7971 | ||
53eb84a5 SH |
7972 | static void |
7973 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
7974 | const struct ofputil_group_props *gp, | |
7975 | struct ofpbuf *openflow) | |
7976 | { | |
7977 | struct ntr_group_prop_selection_method *prop; | |
7978 | size_t start; | |
7979 | ||
7980 | start = openflow->size; | |
7981 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
7982 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
7983 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
7984 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
7985 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
7986 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
7987 | strcpy(prop->selection_method, gp->selection_method); | |
7988 | prop->selection_method_param = htonll(gp->selection_method_param); | |
7989 | end_property(openflow, start); | |
7990 | } | |
7991 | ||
5be50252 SH |
7992 | static void |
7993 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7994 | const struct ovs_list *buckets, |
ca6ba700 | 7995 | struct ovs_list *replies, |
5be50252 | 7996 | enum ofp_version version) |
7395c052 NZ |
7997 | { |
7998 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7999 | struct ofp11_group_desc_stats *ogds; | |
8000 | struct ofputil_bucket *bucket; | |
8001 | size_t start_ogds; | |
8002 | ||
6fd6ed71 | 8003 | start_ogds = reply->size; |
7395c052 NZ |
8004 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8005 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8006 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8007 | } |
8008 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8009 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8010 | ogds->type = gds->type; |
8011 | ogds->group_id = htonl(gds->group_id); | |
8012 | ||
8013 | ofpmp_postappend(replies, start_ogds); | |
8014 | } | |
8015 | ||
18ac06d3 SH |
8016 | static void |
8017 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8018 | const struct ovs_list *buckets, |
ca6ba700 | 8019 | struct ovs_list *replies, |
18ac06d3 SH |
8020 | enum ofp_version version) |
8021 | { | |
8022 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
8023 | struct ofp15_group_desc_stats *ogds; | |
8024 | struct ofputil_bucket *bucket; | |
8025 | size_t start_ogds, start_buckets; | |
8026 | ||
6fd6ed71 | 8027 | start_ogds = reply->size; |
18ac06d3 | 8028 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8029 | start_buckets = reply->size; |
18ac06d3 SH |
8030 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8031 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8032 | gds->type, reply, version); | |
8033 | } | |
8034 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8035 | ogds->type = gds->type; |
8036 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8037 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8038 | |
53eb84a5 SH |
8039 | /* Add group properties */ |
8040 | if (gds->props.selection_method[0]) { | |
8041 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8042 | reply); | |
8043 | } | |
3986cae6 | 8044 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8045 | |
18ac06d3 SH |
8046 | ofpmp_postappend(replies, start_ogds); |
8047 | } | |
8048 | ||
5be50252 SH |
8049 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8050 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8051 | * initialized with ofpmp_init(). */ | |
8052 | void | |
8053 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8054 | const struct ovs_list *buckets, |
ca6ba700 | 8055 | struct ovs_list *replies) |
5be50252 SH |
8056 | { |
8057 | enum ofp_version version = ofpmp_version(replies); | |
8058 | ||
8059 | switch (version) | |
8060 | { | |
8061 | case OFP11_VERSION: | |
8062 | case OFP12_VERSION: | |
8063 | case OFP13_VERSION: | |
8064 | case OFP14_VERSION: | |
5be50252 SH |
8065 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8066 | break; | |
8067 | ||
18ac06d3 SH |
8068 | case OFP15_VERSION: |
8069 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
8070 | break; | |
8071 | ||
5be50252 SH |
8072 | case OFP10_VERSION: |
8073 | default: | |
8074 | OVS_NOT_REACHED(); | |
8075 | } | |
8076 | } | |
8077 | ||
7395c052 | 8078 | static enum ofperr |
655ed3ae | 8079 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8080 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8081 | { |
8082 | struct ofp11_bucket *ob; | |
18ac06d3 | 8083 | uint32_t bucket_id = 0; |
7395c052 NZ |
8084 | |
8085 | list_init(buckets); | |
8086 | while (buckets_length > 0) { | |
8087 | struct ofputil_bucket *bucket; | |
8088 | struct ofpbuf ofpacts; | |
8089 | enum ofperr error; | |
8090 | size_t ob_len; | |
8091 | ||
8092 | ob = (buckets_length >= sizeof *ob | |
8093 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8094 | : NULL); | |
8095 | if (!ob) { | |
34582733 | 8096 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8097 | buckets_length); |
e27e4ce9 | 8098 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8099 | } |
8100 | ||
8101 | ob_len = ntohs(ob->len); | |
8102 | if (ob_len < sizeof *ob) { | |
8103 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8104 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8105 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8106 | } else if (ob_len > buckets_length) { | |
8107 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8108 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8109 | ob_len, buckets_length); |
8110 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8111 | } | |
8112 | buckets_length -= ob_len; | |
8113 | ||
8114 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8115 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8116 | version, &ofpacts); | |
7395c052 NZ |
8117 | if (error) { |
8118 | ofpbuf_uninit(&ofpacts); | |
8119 | ofputil_bucket_list_destroy(buckets); | |
8120 | return error; | |
8121 | } | |
8122 | ||
8123 | bucket = xzalloc(sizeof *bucket); | |
8124 | bucket->weight = ntohs(ob->weight); | |
8125 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8126 | if (error) { | |
8127 | ofpbuf_uninit(&ofpacts); | |
8128 | ofputil_bucket_list_destroy(buckets); | |
8129 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8130 | } | |
8131 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8132 | bucket->bucket_id = bucket_id++; |
8133 | ||
7395c052 | 8134 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8135 | bucket->ofpacts_len = ofpacts.size; |
7395c052 NZ |
8136 | list_push_back(buckets, &bucket->list_node); |
8137 | } | |
8138 | ||
8139 | return 0; | |
8140 | } | |
8141 | ||
18ac06d3 SH |
8142 | static enum ofperr |
8143 | parse_ofp15_group_bucket_prop_weight(const struct ofpbuf *payload, | |
8144 | ovs_be16 *weight) | |
8145 | { | |
6fd6ed71 | 8146 | struct ofp15_group_bucket_prop_weight *prop = payload->data; |
18ac06d3 | 8147 | |
6fd6ed71 | 8148 | if (payload->size != sizeof *prop) { |
18ac06d3 | 8149 | log_property(false, "OpenFlow bucket weight property length " |
6fd6ed71 | 8150 | "%u is not valid", payload->size); |
18ac06d3 SH |
8151 | return OFPERR_OFPBPC_BAD_LEN; |
8152 | } | |
8153 | ||
8154 | *weight = prop->weight; | |
8155 | ||
8156 | return 0; | |
8157 | } | |
8158 | ||
8159 | static enum ofperr | |
8160 | parse_ofp15_group_bucket_prop_watch(const struct ofpbuf *payload, | |
8161 | ovs_be32 *watch) | |
8162 | { | |
6fd6ed71 | 8163 | struct ofp15_group_bucket_prop_watch *prop = payload->data; |
18ac06d3 | 8164 | |
6fd6ed71 | 8165 | if (payload->size != sizeof *prop) { |
18ac06d3 | 8166 | log_property(false, "OpenFlow bucket watch port or group " |
6fd6ed71 | 8167 | "property length %u is not valid", payload->size); |
18ac06d3 SH |
8168 | return OFPERR_OFPBPC_BAD_LEN; |
8169 | } | |
8170 | ||
8171 | *watch = prop->watch; | |
8172 | ||
8173 | return 0; | |
8174 | } | |
8175 | ||
8176 | static enum ofperr | |
8177 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8178 | enum ofp_version version, uint8_t group_type, |
8179 | struct ovs_list *buckets) | |
18ac06d3 SH |
8180 | { |
8181 | struct ofp15_bucket *ob; | |
8182 | ||
8183 | list_init(buckets); | |
8184 | while (buckets_length > 0) { | |
8185 | struct ofputil_bucket *bucket = NULL; | |
8186 | struct ofpbuf ofpacts; | |
8187 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8188 | struct ofpbuf properties; | |
8189 | size_t ob_len, actions_len, properties_len; | |
8190 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8191 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8192 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8193 | |
8194 | ofpbuf_init(&ofpacts, 0); | |
8195 | ||
8196 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8197 | if (!ob) { | |
8198 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8199 | " leftover bytes", buckets_length); | |
8200 | goto err; | |
8201 | } | |
8202 | ||
8203 | ob_len = ntohs(ob->len); | |
79870963 | 8204 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8205 | |
8206 | if (ob_len < sizeof *ob) { | |
8207 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8208 | "%"PRIuSIZE" is not valid", ob_len); | |
8209 | goto err; | |
8210 | } else if (ob_len > buckets_length) { | |
8211 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8212 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8213 | PRIuSIZE, ob_len, buckets_length); | |
8214 | goto err; | |
8215 | } else if (actions_len > ob_len - sizeof *ob) { | |
8216 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8217 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8218 | "data size %"PRIuSIZE, actions_len, | |
8219 | ob_len - sizeof *ob); | |
8220 | goto err; | |
8221 | } | |
8222 | buckets_length -= ob_len; | |
8223 | ||
8224 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8225 | &ofpacts); | |
8226 | if (err) { | |
8227 | goto err; | |
8228 | } | |
8229 | ||
8230 | properties_len = ob_len - sizeof *ob - actions_len; | |
8231 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8232 | properties_len); | |
8233 | ||
6fd6ed71 | 8234 | while (properties.size > 0) { |
18ac06d3 SH |
8235 | struct ofpbuf payload; |
8236 | uint16_t type; | |
8237 | ||
8238 | err = ofputil_pull_property(&properties, &payload, &type); | |
8239 | if (err) { | |
8240 | goto err; | |
8241 | } | |
8242 | ||
8243 | switch (type) { | |
8244 | case OFPGBPT15_WEIGHT: | |
8245 | err = parse_ofp15_group_bucket_prop_weight(&payload, &weight); | |
8246 | break; | |
8247 | ||
8248 | case OFPGBPT15_WATCH_PORT: | |
8249 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
8250 | &watch_port); | |
8251 | break; | |
8252 | ||
8253 | case OFPGBPT15_WATCH_GROUP: | |
8254 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
8255 | &watch_group); | |
8256 | break; | |
8257 | ||
8258 | default: | |
8259 | log_property(false, "unknown group bucket property %"PRIu16, | |
8260 | type); | |
8261 | err = OFPERR_OFPBPC_BAD_TYPE; | |
8262 | break; | |
8263 | } | |
8264 | ||
8265 | if (err) { | |
8266 | goto err; | |
8267 | } | |
8268 | } | |
8269 | ||
8270 | bucket = xzalloc(sizeof *bucket); | |
8271 | ||
8272 | bucket->weight = ntohs(weight); | |
8273 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8274 | if (err) { | |
8275 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8276 | goto err; | |
8277 | } | |
8278 | bucket->watch_group = ntohl(watch_group); | |
8279 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8280 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8281 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8282 | bucket->bucket_id); | |
8283 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8284 | goto err; | |
8285 | } | |
8286 | ||
8287 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8288 | bucket->ofpacts_len = ofpacts.size; |
18ac06d3 SH |
8289 | list_push_back(buckets, &bucket->list_node); |
8290 | ||
8291 | continue; | |
8292 | ||
8293 | err: | |
8294 | free(bucket); | |
8295 | ofpbuf_uninit(&ofpacts); | |
8296 | ofputil_bucket_list_destroy(buckets); | |
8297 | return err; | |
8298 | } | |
8299 | ||
8300 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8301 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8302 | ofputil_bucket_list_destroy(buckets); | |
8303 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8304 | } | |
8305 | ||
8306 | return 0; | |
8307 | } | |
8308 | ||
bc65c25a SH |
8309 | static void |
8310 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8311 | { | |
8312 | memset(gp, 0, sizeof *gp); | |
8313 | } | |
8314 | ||
8315 | static enum ofperr | |
8316 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8317 | enum ofp11_group_type group_type, | |
8318 | enum ofp15_group_mod_command group_cmd, | |
8319 | struct ofputil_group_props *gp) | |
8320 | { | |
8321 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8322 | size_t fields_len, method_len; | |
8323 | enum ofperr error; | |
8324 | ||
8325 | switch (group_type) { | |
8326 | case OFPGT11_SELECT: | |
8327 | break; | |
8328 | case OFPGT11_ALL: | |
8329 | case OFPGT11_INDIRECT: | |
8330 | case OFPGT11_FF: | |
8331 | log_property(false, "ntr selection method property is only allowed " | |
8332 | "for select groups"); | |
8333 | return OFPERR_OFPBPC_BAD_VALUE; | |
8334 | default: | |
8335 | OVS_NOT_REACHED(); | |
8336 | } | |
8337 | ||
8338 | switch (group_cmd) { | |
8339 | case OFPGC15_ADD: | |
8340 | case OFPGC15_MODIFY: | |
8341 | break; | |
8342 | case OFPGC15_DELETE: | |
8343 | case OFPGC15_INSERT_BUCKET: | |
8344 | case OFPGC15_REMOVE_BUCKET: | |
8345 | log_property(false, "ntr selection method property is only allowed " | |
8346 | "for add and delete group modifications"); | |
8347 | return OFPERR_OFPBPC_BAD_VALUE; | |
8348 | default: | |
8349 | OVS_NOT_REACHED(); | |
8350 | } | |
8351 | ||
8352 | if (payload->size < sizeof *prop) { | |
8353 | log_property(false, "ntr selection method property length " | |
8354 | "%u is not valid", payload->size); | |
8355 | return OFPERR_OFPBPC_BAD_LEN; | |
8356 | } | |
8357 | ||
8358 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8359 | ||
8360 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
8361 | log_property(false, "ntr selection method is not null terminated"); | |
8362 | return OFPERR_OFPBPC_BAD_VALUE; | |
8363 | } | |
8364 | ||
0c4b9393 SH |
8365 | if (strcmp("hash", prop->selection_method)) { |
8366 | log_property(false, "ntr selection method '%s' is not supported", | |
8367 | prop->selection_method); | |
8368 | return OFPERR_OFPBPC_BAD_VALUE; | |
8369 | } | |
bc65c25a SH |
8370 | |
8371 | strcpy(gp->selection_method, prop->selection_method); | |
8372 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8373 | ||
8374 | if (!method_len && gp->selection_method_param) { | |
8375 | log_property(false, "ntr selection method parameter is non-zero but " | |
8376 | "selection method is empty"); | |
8377 | return OFPERR_OFPBPC_BAD_VALUE; | |
8378 | } | |
8379 | ||
8380 | ofpbuf_pull(payload, sizeof *prop); | |
8381 | ||
8382 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8383 | if (!method_len && fields_len) { | |
8384 | log_property(false, "ntr selection method parameter is zero " | |
8385 | "but fields are provided"); | |
8386 | return OFPERR_OFPBPC_BAD_VALUE; | |
8387 | } | |
8388 | ||
8389 | error = oxm_pull_field_array(payload->data, fields_len, | |
8390 | &gp->fields); | |
8391 | if (error) { | |
8392 | log_property(false, "ntr selection method fields are invalid"); | |
8393 | return error; | |
8394 | } | |
8395 | ||
8396 | return 0; | |
8397 | } | |
8398 | ||
8399 | static enum ofperr | |
8400 | parse_group_prop_ntr(struct ofpbuf *payload, uint32_t exp_type, | |
8401 | enum ofp11_group_type group_type, | |
8402 | enum ofp15_group_mod_command group_cmd, | |
8403 | struct ofputil_group_props *gp) | |
8404 | { | |
8405 | enum ofperr error; | |
8406 | ||
8407 | switch (exp_type) { | |
8408 | case NTRT_SELECTION_METHOD: | |
8409 | error = parse_group_prop_ntr_selection_method(payload, group_type, | |
8410 | group_cmd, gp); | |
8411 | break; | |
8412 | ||
8413 | default: | |
8414 | log_property(false, "unknown group property ntr experimenter type " | |
8415 | "%"PRIu32, exp_type); | |
8416 | error = OFPERR_OFPBPC_BAD_TYPE; | |
8417 | break; | |
8418 | } | |
8419 | ||
8420 | return error; | |
8421 | } | |
8422 | ||
8423 | static enum ofperr | |
8424 | parse_ofp15_group_prop_exp(struct ofpbuf *payload, | |
8425 | enum ofp11_group_type group_type, | |
8426 | enum ofp15_group_mod_command group_cmd, | |
8427 | struct ofputil_group_props *gp) | |
8428 | { | |
8429 | struct ofp_prop_experimenter *prop = payload->data; | |
8430 | uint16_t experimenter; | |
8431 | uint32_t exp_type; | |
8432 | enum ofperr error; | |
8433 | ||
8434 | if (payload->size < sizeof *prop) { | |
8435 | return OFPERR_OFPBPC_BAD_LEN; | |
8436 | } | |
8437 | ||
8438 | experimenter = ntohl(prop->experimenter); | |
8439 | exp_type = ntohl(prop->exp_type); | |
8440 | ||
8441 | switch (experimenter) { | |
8442 | case NTR_VENDOR_ID: | |
c28a1f83 | 8443 | case NTR_COMPAT_VENDOR_ID: |
bc65c25a SH |
8444 | error = parse_group_prop_ntr(payload, exp_type, group_type, |
8445 | group_cmd, gp); | |
8446 | break; | |
8447 | ||
8448 | default: | |
8449 | log_property(false, "unknown group property experimenter %"PRIu16, | |
8450 | experimenter); | |
8451 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
8452 | break; | |
8453 | } | |
8454 | ||
8455 | return error; | |
8456 | } | |
8457 | ||
8458 | static enum ofperr | |
8459 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8460 | enum ofp11_group_type group_type, | |
8461 | enum ofp15_group_mod_command group_cmd, | |
8462 | struct ofputil_group_props *gp, | |
8463 | size_t properties_len) | |
8464 | { | |
8465 | struct ofpbuf properties; | |
8466 | ||
8467 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8468 | properties_len); | |
8469 | ||
8470 | while (properties.size > 0) { | |
8471 | struct ofpbuf payload; | |
8472 | enum ofperr error; | |
8473 | uint16_t type; | |
8474 | ||
8475 | error = ofputil_pull_property(&properties, &payload, &type); | |
8476 | if (error) { | |
8477 | return error; | |
8478 | } | |
8479 | ||
8480 | switch (type) { | |
8481 | case OFPGPT15_EXPERIMENTER: | |
8482 | error = parse_ofp15_group_prop_exp(&payload, group_type, | |
8483 | group_cmd, gp); | |
8484 | break; | |
8485 | ||
8486 | default: | |
8487 | log_property(false, "unknown group property %"PRIu16, type); | |
8488 | error = OFPERR_OFPBPC_BAD_TYPE; | |
8489 | break; | |
8490 | } | |
8491 | ||
8492 | if (error) { | |
8493 | return error; | |
8494 | } | |
8495 | } | |
8496 | ||
8497 | return 0; | |
8498 | } | |
8499 | ||
975910f2 SH |
8500 | static int |
8501 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8502 | struct ofpbuf *msg, | |
8503 | enum ofp_version version) | |
7395c052 NZ |
8504 | { |
8505 | struct ofp11_group_desc_stats *ogds; | |
8506 | size_t length; | |
8507 | ||
6fd6ed71 | 8508 | if (!msg->header) { |
7395c052 NZ |
8509 | ofpraw_pull_assert(msg); |
8510 | } | |
8511 | ||
6fd6ed71 | 8512 | if (!msg->size) { |
7395c052 NZ |
8513 | return EOF; |
8514 | } | |
8515 | ||
8516 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8517 | if (!ogds) { | |
437d0d22 | 8518 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8519 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8520 | return OFPERR_OFPBRC_BAD_LEN; |
8521 | } | |
8522 | gd->type = ogds->type; | |
8523 | gd->group_id = ntohl(ogds->group_id); | |
8524 | ||
8525 | length = ntohs(ogds->length); | |
6fd6ed71 | 8526 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8527 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8528 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8529 | return OFPERR_OFPBRC_BAD_LEN; |
8530 | } | |
8531 | ||
655ed3ae SH |
8532 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8533 | &gd->buckets); | |
7395c052 NZ |
8534 | } |
8535 | ||
18ac06d3 SH |
8536 | static int |
8537 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8538 | struct ofpbuf *msg, | |
8539 | enum ofp_version version) | |
8540 | { | |
8541 | struct ofp15_group_desc_stats *ogds; | |
8542 | uint16_t length, bucket_list_len; | |
bc65c25a | 8543 | int error; |
18ac06d3 | 8544 | |
6fd6ed71 | 8545 | if (!msg->header) { |
18ac06d3 SH |
8546 | ofpraw_pull_assert(msg); |
8547 | } | |
8548 | ||
6fd6ed71 | 8549 | if (!msg->size) { |
18ac06d3 SH |
8550 | return EOF; |
8551 | } | |
8552 | ||
8553 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8554 | if (!ogds) { | |
8555 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8556 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8557 | return OFPERR_OFPBRC_BAD_LEN; |
8558 | } | |
8559 | gd->type = ogds->type; | |
8560 | gd->group_id = ntohl(ogds->group_id); | |
8561 | ||
8562 | length = ntohs(ogds->length); | |
6fd6ed71 | 8563 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8564 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8565 | "length %u", length); | |
8566 | return OFPERR_OFPBRC_BAD_LEN; | |
8567 | } | |
8568 | ||
8569 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8570 | if (length < bucket_list_len + sizeof *ogds) { | |
8571 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8572 | "bucket list length %u", bucket_list_len); | |
8573 | return OFPERR_OFPBRC_BAD_LEN; | |
8574 | } | |
64e8c446 | 8575 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8576 | &gd->buckets); |
8577 | if (error) { | |
8578 | return error; | |
8579 | } | |
18ac06d3 | 8580 | |
bc65c25a SH |
8581 | /* By definition group desc messages don't have a group mod command. |
8582 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8583 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8584 | * against group mod messages with other commands supplying | |
8585 | * a NTR selection method group experimenter property. | |
8586 | * Such properties are valid for group desc replies so | |
8587 | * claim that the group mod command is OFPGC15_ADD to | |
8588 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8589 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8590 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8591 | } |
8592 | ||
975910f2 SH |
8593 | /* Converts a group description reply in 'msg' into an abstract |
8594 | * ofputil_group_desc in 'gd'. | |
8595 | * | |
8596 | * Multiple group description replies can be packed into a single OpenFlow | |
8597 | * message. Calling this function multiple times for a single 'msg' iterates | |
8598 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8599 | * null and not modify them between calls. | |
8600 | * | |
8601 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8602 | * otherwise a positive errno value. */ | |
8603 | int | |
8604 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8605 | struct ofpbuf *msg, enum ofp_version version) | |
8606 | { | |
bc65c25a SH |
8607 | ofputil_init_group_properties(&gd->props); |
8608 | ||
975910f2 SH |
8609 | switch (version) |
8610 | { | |
8611 | case OFP11_VERSION: | |
8612 | case OFP12_VERSION: | |
8613 | case OFP13_VERSION: | |
8614 | case OFP14_VERSION: | |
975910f2 SH |
8615 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8616 | ||
18ac06d3 SH |
8617 | case OFP15_VERSION: |
8618 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8619 | ||
975910f2 SH |
8620 | case OFP10_VERSION: |
8621 | default: | |
8622 | OVS_NOT_REACHED(); | |
8623 | } | |
8624 | } | |
8625 | ||
bc65c25a SH |
8626 | void |
8627 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8628 | { | |
8629 | ofputil_bucket_list_destroy(&gm->buckets); | |
8630 | } | |
8631 | ||
4498bea5 SH |
8632 | static struct ofpbuf * |
8633 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8634 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8635 | { |
8636 | struct ofpbuf *b; | |
8637 | struct ofp11_group_mod *ogm; | |
8638 | size_t start_ogm; | |
7395c052 | 8639 | struct ofputil_bucket *bucket; |
7395c052 | 8640 | |
4498bea5 | 8641 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8642 | start_ogm = b->size; |
4498bea5 SH |
8643 | ofpbuf_put_zeros(b, sizeof *ogm); |
8644 | ||
8645 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8646 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8647 | } | |
8648 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8649 | ogm->command = htons(gm->command); | |
8650 | ogm->type = gm->type; | |
8651 | ogm->group_id = htonl(gm->group_id); | |
8652 | ||
8653 | return b; | |
8654 | } | |
8655 | ||
18ac06d3 SH |
8656 | static struct ofpbuf * |
8657 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8658 | const struct ofputil_group_mod *gm) | |
8659 | { | |
8660 | struct ofpbuf *b; | |
8661 | struct ofp15_group_mod *ogm; | |
8662 | size_t start_ogm; | |
8663 | struct ofputil_bucket *bucket; | |
8664 | struct id_pool *bucket_ids = NULL; | |
8665 | ||
8666 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8667 | start_ogm = b->size; |
18ac06d3 SH |
8668 | ofpbuf_put_zeros(b, sizeof *ogm); |
8669 | ||
8670 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8671 | uint32_t bucket_id; | |
8672 | ||
8673 | /* Generate a bucket id if none was supplied */ | |
8674 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8675 | if (!bucket_ids) { | |
8676 | const struct ofputil_bucket *bkt; | |
8677 | ||
8678 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8679 | ||
8680 | /* Mark all bucket_ids that are present in gm | |
8681 | * as used in the pool. */ | |
8682 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8683 | if (bkt == bucket) { | |
8684 | break; | |
8685 | } | |
8686 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8687 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8688 | } | |
8689 | } | |
8690 | } | |
8691 | ||
8692 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8693 | OVS_NOT_REACHED(); | |
8694 | } | |
8695 | } else { | |
8696 | bucket_id = bucket->bucket_id; | |
8697 | } | |
8698 | ||
8699 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8700 | } | |
8701 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8702 | ogm->command = htons(gm->command); | |
8703 | ogm->type = gm->type; | |
8704 | ogm->group_id = htonl(gm->group_id); | |
8705 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8706 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8707 | |
53eb84a5 SH |
8708 | /* Add group properties */ |
8709 | if (gm->props.selection_method[0]) { | |
8710 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8711 | } | |
8712 | ||
18ac06d3 SH |
8713 | id_pool_destroy(bucket_ids); |
8714 | return b; | |
8715 | } | |
8716 | ||
d4b1d0ca | 8717 | static void |
9dd30b05 BP |
8718 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8719 | { | |
d4b1d0ca SH |
8720 | const char *opt_version; |
8721 | const char *version; | |
8722 | const char *cmd_str; | |
8723 | ||
8724 | switch (cmd) { | |
8725 | case OFPGC15_ADD: | |
8726 | case OFPGC15_MODIFY: | |
8727 | case OFPGC15_DELETE: | |
8728 | version = "1.1"; | |
8729 | opt_version = "11"; | |
8730 | break; | |
8731 | ||
8732 | case OFPGC15_INSERT_BUCKET: | |
8733 | case OFPGC15_REMOVE_BUCKET: | |
8734 | version = "1.5"; | |
8735 | opt_version = "15"; | |
9dd30b05 | 8736 | break; |
d4b1d0ca SH |
8737 | |
8738 | default: | |
8739 | OVS_NOT_REACHED(); | |
8740 | } | |
8741 | ||
8742 | switch (cmd) { | |
8743 | case OFPGC15_ADD: | |
8744 | cmd_str = "add-group"; | |
8745 | break; | |
8746 | ||
8747 | case OFPGC15_MODIFY: | |
8748 | cmd_str = "mod-group"; | |
8749 | break; | |
8750 | ||
8751 | case OFPGC15_DELETE: | |
8752 | cmd_str = "del-group"; | |
8753 | break; | |
8754 | ||
8755 | case OFPGC15_INSERT_BUCKET: | |
8756 | cmd_str = "insert-bucket"; | |
8757 | break; | |
8758 | ||
8759 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8760 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8761 | break; |
8762 | ||
8763 | default: | |
8764 | OVS_NOT_REACHED(); | |
8765 | } | |
8766 | ||
8767 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8768 | cmd_str, version, opt_version); | |
8769 | ||
8770 | } | |
8771 | ||
4498bea5 SH |
8772 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8773 | * 'ofp_version' and returns the message. */ | |
8774 | struct ofpbuf * | |
8775 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
8776 | const struct ofputil_group_mod *gm) | |
8777 | { | |
d4b1d0ca | 8778 | |
7395c052 | 8779 | switch (ofp_version) { |
d4b1d0ca SH |
8780 | case OFP10_VERSION: |
8781 | bad_group_cmd(gm->command); | |
7395c052 NZ |
8782 | |
8783 | case OFP11_VERSION: | |
8784 | case OFP12_VERSION: | |
c37c0382 AC |
8785 | case OFP13_VERSION: |
8786 | case OFP14_VERSION: | |
d4b1d0ca SH |
8787 | if (gm->command > OFPGC11_DELETE) { |
8788 | bad_group_cmd(gm->command); | |
8789 | } | |
4498bea5 | 8790 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 8791 | |
18ac06d3 SH |
8792 | case OFP15_VERSION: |
8793 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
8794 | ||
7395c052 | 8795 | default: |
428b2edd | 8796 | OVS_NOT_REACHED(); |
7395c052 | 8797 | } |
7395c052 NZ |
8798 | } |
8799 | ||
aead63f2 SH |
8800 | static enum ofperr |
8801 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8802 | struct ofputil_group_mod *gm) | |
8803 | { | |
8804 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 8805 | enum ofperr error; |
aead63f2 SH |
8806 | |
8807 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8808 | gm->command = ntohs(ogm->command); | |
8809 | gm->type = ogm->type; | |
8810 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8811 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 8812 | |
6fd6ed71 | 8813 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
8814 | &gm->buckets); |
8815 | ||
8816 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
8817 | if (!error | |
8818 | && ofp_version >= OFP13_VERSION | |
8819 | && gm->command == OFPGC11_DELETE | |
8820 | && !list_is_empty(&gm->buckets)) { | |
8821 | error = OFPERR_OFPGMFC_INVALID_GROUP; | |
8822 | } | |
8823 | ||
8824 | return error; | |
aead63f2 SH |
8825 | } |
8826 | ||
18ac06d3 SH |
8827 | static enum ofperr |
8828 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8829 | struct ofputil_group_mod *gm) | |
8830 | { | |
8831 | const struct ofp15_group_mod *ogm; | |
8832 | uint16_t bucket_list_len; | |
8833 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8834 | ||
8835 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8836 | gm->command = ntohs(ogm->command); | |
8837 | gm->type = ogm->type; | |
8838 | gm->group_id = ntohl(ogm->group_id); | |
8839 | ||
8840 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8841 | switch (gm->command) { | |
8842 | case OFPGC15_REMOVE_BUCKET: | |
8843 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8844 | error = 0; | |
8845 | } | |
8846 | /* Fall through */ | |
8847 | case OFPGC15_INSERT_BUCKET: | |
8848 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8849 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8850 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8851 | error = 0; | |
8852 | } | |
8853 | break; | |
8854 | ||
8855 | case OFPGC11_ADD: | |
8856 | case OFPGC11_MODIFY: | |
8857 | case OFPGC11_DELETE: | |
8858 | default: | |
8859 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8860 | error = 0; | |
8861 | } | |
8862 | break; | |
8863 | } | |
8864 | if (error) { | |
8865 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8866 | "group command bucket id (%u) is out of range", | |
8867 | gm->command_bucket_id); | |
8868 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8869 | } | |
8870 | ||
79870963 | 8871 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 8872 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 8873 | gm->type, &gm->buckets); |
bc65c25a SH |
8874 | if (error) { |
8875 | return error; | |
18ac06d3 SH |
8876 | } |
8877 | ||
bc65c25a SH |
8878 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
8879 | msg->size); | |
18ac06d3 SH |
8880 | } |
8881 | ||
7395c052 NZ |
8882 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8883 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8884 | enum ofperr | |
8885 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8886 | struct ofputil_group_mod *gm) | |
8887 | { | |
aead63f2 | 8888 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8889 | struct ofpbuf msg; |
e57681e5 SH |
8890 | struct ofputil_bucket *bucket; |
8891 | enum ofperr err; | |
7395c052 NZ |
8892 | |
8893 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8894 | ofpraw_pull_assert(&msg); | |
8895 | ||
bc65c25a SH |
8896 | ofputil_init_group_properties(&gm->props); |
8897 | ||
aead63f2 SH |
8898 | switch (ofp_version) |
8899 | { | |
8900 | case OFP11_VERSION: | |
8901 | case OFP12_VERSION: | |
8902 | case OFP13_VERSION: | |
8903 | case OFP14_VERSION: | |
aead63f2 SH |
8904 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8905 | break; | |
8906 | ||
18ac06d3 SH |
8907 | case OFP15_VERSION: |
8908 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8909 | break; | |
8910 | ||
aead63f2 SH |
8911 | case OFP10_VERSION: |
8912 | default: | |
8913 | OVS_NOT_REACHED(); | |
8914 | } | |
7395c052 | 8915 | |
e57681e5 SH |
8916 | if (err) { |
8917 | return err; | |
8918 | } | |
8919 | ||
e1799eb7 SH |
8920 | switch (gm->type) { |
8921 | case OFPGT11_INDIRECT: | |
8922 | if (!list_is_singleton(&gm->buckets)) { | |
290eada7 | 8923 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
8924 | } |
8925 | break; | |
8926 | case OFPGT11_ALL: | |
8927 | case OFPGT11_SELECT: | |
8928 | case OFPGT11_FF: | |
8929 | break; | |
8930 | default: | |
09d4b951 | 8931 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
8932 | } |
8933 | ||
8934 | switch (gm->command) { | |
8935 | case OFPGC11_ADD: | |
8936 | case OFPGC11_MODIFY: | |
8937 | case OFPGC11_DELETE: | |
8938 | case OFPGC15_INSERT_BUCKET: | |
8939 | break; | |
8940 | case OFPGC15_REMOVE_BUCKET: | |
8941 | if (!list_is_empty(&gm->buckets)) { | |
8942 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8943 | } | |
8944 | break; | |
8945 | default: | |
09d4b951 | 8946 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
8947 | } |
8948 | ||
e57681e5 | 8949 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
8950 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
8951 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8952 | } | |
8953 | ||
e57681e5 SH |
8954 | switch (gm->type) { |
8955 | case OFPGT11_ALL: | |
8956 | case OFPGT11_INDIRECT: | |
8957 | if (ofputil_bucket_has_liveness(bucket)) { | |
8958 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8959 | } | |
8960 | break; | |
8961 | case OFPGT11_SELECT: | |
8962 | break; | |
8963 | case OFPGT11_FF: | |
8964 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8965 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8966 | } | |
8967 | break; | |
8968 | default: | |
896313f3 FL |
8969 | /* Returning BAD TYPE to be consistent |
8970 | * though gm->type has been checked already. */ | |
8971 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
8972 | } |
8973 | } | |
8974 | ||
8975 | return 0; | |
7395c052 NZ |
8976 | } |
8977 | ||
64626975 SH |
8978 | /* Parse a queue status request message into 'oqsr'. |
8979 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8980 | enum ofperr | |
8981 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8982 | struct ofputil_queue_stats_request *oqsr) | |
8983 | { | |
8984 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8985 | case OFP15_VERSION: |
c37c0382 | 8986 | case OFP14_VERSION: |
2e1ae200 | 8987 | case OFP13_VERSION: |
64626975 SH |
8988 | case OFP12_VERSION: |
8989 | case OFP11_VERSION: { | |
8990 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8991 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8992 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8993 | } | |
8994 | ||
8995 | case OFP10_VERSION: { | |
7f05e7ab JR |
8996 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8997 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8998 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8999 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
9000 | if (oqsr->port_no == OFPP_ALL) { | |
9001 | oqsr->port_no = OFPP_ANY; | |
9002 | } | |
64626975 SH |
9003 | return 0; |
9004 | } | |
9005 | ||
9006 | default: | |
428b2edd | 9007 | OVS_NOT_REACHED(); |
64626975 SH |
9008 | } |
9009 | } | |
9010 | ||
0746a84f BP |
9011 | /* Encode a queue stats request for 'oqsr', the encoded message |
9012 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9013 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9014 | struct ofpbuf * |
9015 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9016 | const struct ofputil_queue_stats_request *oqsr) | |
9017 | { | |
9018 | struct ofpbuf *request; | |
9019 | ||
9020 | switch (ofp_version) { | |
9021 | case OFP11_VERSION: | |
2e1ae200 | 9022 | case OFP12_VERSION: |
c37c0382 | 9023 | case OFP13_VERSION: |
42dccab5 BP |
9024 | case OFP14_VERSION: |
9025 | case OFP15_VERSION: { | |
64626975 SH |
9026 | struct ofp11_queue_stats_request *req; |
9027 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9028 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9029 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9030 | req->queue_id = htonl(oqsr->queue_id); | |
9031 | break; | |
9032 | } | |
9033 | case OFP10_VERSION: { | |
9034 | struct ofp10_queue_stats_request *req; | |
9035 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9036 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9037 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9038 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9039 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9040 | req->queue_id = htonl(oqsr->queue_id); |
9041 | break; | |
9042 | } | |
9043 | default: | |
428b2edd | 9044 | OVS_NOT_REACHED(); |
64626975 SH |
9045 | } |
9046 | ||
9047 | return request; | |
9048 | } | |
9049 | ||
9050 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9051 | * message 'oh'. */ | |
9052 | size_t | |
9053 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9054 | { | |
1bb2cdbe | 9055 | struct ofputil_queue_stats qs; |
64626975 | 9056 | struct ofpbuf b; |
1bb2cdbe | 9057 | size_t n = 0; |
64626975 SH |
9058 | |
9059 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9060 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
9061 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
9062 | n++; | |
9063 | } | |
9064 | return n; | |
64626975 SH |
9065 | } |
9066 | ||
9067 | static enum ofperr | |
9068 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9069 | const struct ofp10_queue_stats *qs10) | |
9070 | { | |
4e022ec0 | 9071 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9072 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9073 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9074 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9075 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9076 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9077 | |
9078 | return 0; | |
9079 | } | |
9080 | ||
9081 | static enum ofperr | |
9082 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9083 | const struct ofp11_queue_stats *qs11) | |
9084 | { | |
9085 | enum ofperr error; | |
9086 | ||
9087 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9088 | if (error) { | |
9089 | return error; | |
9090 | } | |
9091 | ||
9092 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9093 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9094 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9095 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9096 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9097 | |
9098 | return 0; | |
9099 | } | |
9100 | ||
2e1ae200 JR |
9101 | static enum ofperr |
9102 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9103 | const struct ofp13_queue_stats *qs13) | |
9104 | { | |
6dc34a0d | 9105 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9106 | if (!error) { |
6dc34a0d BP |
9107 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9108 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9109 | } |
9110 | ||
9111 | return error; | |
9112 | } | |
9113 | ||
1bb2cdbe BP |
9114 | static enum ofperr |
9115 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9116 | struct ofpbuf *msg) | |
9117 | { | |
9118 | const struct ofp14_queue_stats *qs14; | |
9119 | size_t len; | |
9120 | ||
9121 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9122 | if (!qs14) { | |
9123 | return OFPERR_OFPBRC_BAD_LEN; | |
9124 | } | |
9125 | ||
9126 | len = ntohs(qs14->length); | |
6fd6ed71 | 9127 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9128 | return OFPERR_OFPBRC_BAD_LEN; |
9129 | } | |
9130 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9131 | ||
9132 | /* No properties yet defined, so ignore them for now. */ | |
9133 | ||
9134 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9135 | } | |
9136 | ||
64626975 SH |
9137 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9138 | * ofputil_queue_stats in 'qs'. | |
9139 | * | |
9140 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9141 | * message. Calling this function multiple times for a single 'msg' iterates | |
9142 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9143 | * null and not modify them between calls. | |
9144 | * | |
9145 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9146 | * otherwise a positive errno value. */ | |
9147 | int | |
9148 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9149 | { | |
9150 | enum ofperr error; | |
9151 | enum ofpraw raw; | |
9152 | ||
6fd6ed71 | 9153 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9154 | : ofpraw_pull(&raw, msg)); |
9155 | if (error) { | |
9156 | return error; | |
9157 | } | |
9158 | ||
6fd6ed71 | 9159 | if (!msg->size) { |
64626975 | 9160 | return EOF; |
1bb2cdbe BP |
9161 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9162 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9163 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9164 | const struct ofp13_queue_stats *qs13; | |
9165 | ||
9166 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9167 | if (!qs13) { | |
9168 | goto bad_len; | |
9169 | } | |
9170 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9171 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9172 | const struct ofp11_queue_stats *qs11; | |
9173 | ||
9174 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9175 | if (!qs11) { | |
2e1ae200 | 9176 | goto bad_len; |
64626975 SH |
9177 | } |
9178 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9179 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9180 | const struct ofp10_queue_stats *qs10; | |
9181 | ||
9182 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9183 | if (!qs10) { | |
2e1ae200 | 9184 | goto bad_len; |
64626975 SH |
9185 | } |
9186 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9187 | } else { | |
428b2edd | 9188 | OVS_NOT_REACHED(); |
64626975 | 9189 | } |
2e1ae200 JR |
9190 | |
9191 | bad_len: | |
437d0d22 | 9192 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9193 | "bytes at end", msg->size); |
2e1ae200 | 9194 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9195 | } |
9196 | ||
9197 | static void | |
9198 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9199 | struct ofp10_queue_stats *qs10) | |
9200 | { | |
4e022ec0 | 9201 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9202 | memset(qs10->pad, 0, sizeof qs10->pad); |
9203 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9204 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9205 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9206 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9207 | } |
9208 | ||
9209 | static void | |
9210 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9211 | struct ofp11_queue_stats *qs11) | |
9212 | { | |
9213 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9214 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9215 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9216 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9217 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9218 | } |
9219 | ||
2e1ae200 JR |
9220 | static void |
9221 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9222 | struct ofp13_queue_stats *qs13) | |
9223 | { | |
9224 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9225 | if (oqs->duration_sec != UINT32_MAX) { |
9226 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9227 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9228 | } else { | |
b8266395 BP |
9229 | qs13->duration_sec = OVS_BE32_MAX; |
9230 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9231 | } |
2e1ae200 JR |
9232 | } |
9233 | ||
1bb2cdbe BP |
9234 | static void |
9235 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9236 | struct ofp14_queue_stats *qs14) | |
9237 | { | |
9238 | qs14->length = htons(sizeof *qs14); | |
9239 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9240 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9241 | } | |
9242 | ||
9243 | ||
64626975 SH |
9244 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9245 | void | |
ca6ba700 | 9246 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9247 | const struct ofputil_queue_stats *oqs) |
9248 | { | |
e28ac5cf | 9249 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9250 | case OFP13_VERSION: { |
9251 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9252 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9253 | break; | |
9254 | } | |
9255 | ||
64626975 SH |
9256 | case OFP12_VERSION: |
9257 | case OFP11_VERSION: { | |
2e1ae200 | 9258 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9259 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9260 | break; | |
9261 | } | |
9262 | ||
9263 | case OFP10_VERSION: { | |
2e1ae200 | 9264 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9265 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9266 | break; | |
9267 | } | |
9268 | ||
42dccab5 BP |
9269 | case OFP14_VERSION: |
9270 | case OFP15_VERSION: { | |
1bb2cdbe BP |
9271 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9272 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9273 | break; |
1bb2cdbe | 9274 | } |
c37c0382 | 9275 | |
64626975 | 9276 | default: |
428b2edd | 9277 | OVS_NOT_REACHED(); |
64626975 SH |
9278 | } |
9279 | } | |
777af88d AC |
9280 | |
9281 | enum ofperr | |
9282 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9283 | struct ofputil_bundle_ctrl_msg *msg) | |
9284 | { | |
9285 | struct ofpbuf b; | |
9286 | enum ofpraw raw; | |
9287 | const struct ofp14_bundle_ctrl_msg *m; | |
9288 | ||
9289 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9290 | raw = ofpraw_pull_assert(&b); | |
9291 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
9292 | ||
6fd6ed71 | 9293 | m = b.msg; |
777af88d AC |
9294 | msg->bundle_id = ntohl(m->bundle_id); |
9295 | msg->type = ntohs(m->type); | |
9296 | msg->flags = ntohs(m->flags); | |
9297 | ||
9298 | return 0; | |
9299 | } | |
9300 | ||
db5076ee JR |
9301 | struct ofpbuf * |
9302 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9303 | struct ofputil_bundle_ctrl_msg *bc) | |
9304 | { | |
9305 | struct ofpbuf *request; | |
9306 | struct ofp14_bundle_ctrl_msg *m; | |
9307 | ||
9308 | switch (ofp_version) { | |
9309 | case OFP10_VERSION: | |
9310 | case OFP11_VERSION: | |
9311 | case OFP12_VERSION: | |
9312 | case OFP13_VERSION: | |
9313 | ovs_fatal(0, "bundles need OpenFlow 1.4 or later " | |
9314 | "(\'-O OpenFlow14\')"); | |
9315 | case OFP14_VERSION: | |
9316 | case OFP15_VERSION: | |
9317 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
9318 | m = ofpbuf_put_zeros(request, sizeof *m); | |
9319 | ||
9320 | m->bundle_id = htonl(bc->bundle_id); | |
9321 | m->type = htons(bc->type); | |
9322 | m->flags = htons(bc->flags); | |
9323 | break; | |
9324 | default: | |
9325 | OVS_NOT_REACHED(); | |
9326 | } | |
9327 | ||
9328 | return request; | |
9329 | } | |
9330 | ||
777af88d AC |
9331 | struct ofpbuf * |
9332 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9333 | struct ofputil_bundle_ctrl_msg *msg) | |
9334 | { | |
9335 | struct ofpbuf *buf; | |
9336 | struct ofp14_bundle_ctrl_msg *m; | |
9337 | ||
9338 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
9339 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
9340 | ||
9341 | m->bundle_id = htonl(msg->bundle_id); | |
9342 | m->type = htons(msg->type); | |
9343 | m->flags = htons(msg->flags); | |
9344 | ||
9345 | return buf; | |
9346 | } | |
9347 | ||
c25ce22d JR |
9348 | /* Return true for bundlable state change requests, false for other messages. |
9349 | */ | |
9350 | static bool | |
9351 | ofputil_is_bundlable(enum ofptype type) | |
9352 | { | |
9353 | switch (type) { | |
9354 | /* Minimum required by OpenFlow 1.4. */ | |
9355 | case OFPTYPE_PORT_MOD: | |
9356 | case OFPTYPE_FLOW_MOD: | |
9357 | return true; | |
9358 | ||
9359 | /* Nice to have later. */ | |
9360 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9361 | case OFPTYPE_GROUP_MOD: | |
9362 | case OFPTYPE_TABLE_MOD: | |
9363 | case OFPTYPE_METER_MOD: | |
9364 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9365 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9366 | |
9367 | /* Not to be bundlable. */ | |
9368 | case OFPTYPE_ECHO_REQUEST: | |
9369 | case OFPTYPE_FEATURES_REQUEST: | |
9370 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9371 | case OFPTYPE_SET_CONFIG: | |
9372 | case OFPTYPE_BARRIER_REQUEST: | |
9373 | case OFPTYPE_ROLE_REQUEST: | |
9374 | case OFPTYPE_ECHO_REPLY: | |
9375 | case OFPTYPE_SET_FLOW_FORMAT: | |
9376 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9377 | case OFPTYPE_SET_CONTROLLER_ID: | |
9378 | case OFPTYPE_FLOW_AGE: | |
9379 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9380 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9381 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9382 | case OFPTYPE_DESC_STATS_REQUEST: | |
9383 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9384 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9385 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9386 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9387 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9388 | case OFPTYPE_PORT_STATS_REQUEST: |
9389 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9390 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9391 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9392 | case OFPTYPE_METER_STATS_REQUEST: | |
9393 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9394 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9395 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9396 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9397 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9398 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9399 | case OFPTYPE_BUNDLE_CONTROL: | |
9400 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9401 | case OFPTYPE_HELLO: | |
9402 | case OFPTYPE_ERROR: | |
9403 | case OFPTYPE_FEATURES_REPLY: | |
9404 | case OFPTYPE_GET_CONFIG_REPLY: | |
9405 | case OFPTYPE_PACKET_IN: | |
9406 | case OFPTYPE_FLOW_REMOVED: | |
9407 | case OFPTYPE_PORT_STATUS: | |
9408 | case OFPTYPE_BARRIER_REPLY: | |
9409 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9410 | case OFPTYPE_DESC_STATS_REPLY: | |
9411 | case OFPTYPE_FLOW_STATS_REPLY: | |
9412 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9413 | case OFPTYPE_PORT_STATS_REPLY: | |
9414 | case OFPTYPE_TABLE_STATS_REPLY: | |
9415 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9416 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9417 | case OFPTYPE_ROLE_REPLY: | |
9418 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9419 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9420 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9421 | case OFPTYPE_GET_ASYNC_REPLY: | |
9422 | case OFPTYPE_GROUP_STATS_REPLY: | |
9423 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9424 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9425 | case OFPTYPE_METER_STATS_REPLY: | |
9426 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9427 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9428 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9429 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9430 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9431 | case OFPTYPE_REQUESTFORWARD: |
4e548ad9 ML |
9432 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9433 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
c25ce22d JR |
9434 | break; |
9435 | } | |
9436 | ||
9437 | return false; | |
9438 | } | |
9439 | ||
777af88d AC |
9440 | enum ofperr |
9441 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 JR |
9442 | struct ofputil_bundle_add_msg *msg, |
9443 | enum ofptype *type_ptr) | |
777af88d AC |
9444 | { |
9445 | const struct ofp14_bundle_ctrl_msg *m; | |
9446 | struct ofpbuf b; | |
9447 | enum ofpraw raw; | |
9448 | size_t inner_len; | |
c25ce22d JR |
9449 | enum ofperr error; |
9450 | enum ofptype type; | |
777af88d AC |
9451 | |
9452 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9453 | raw = ofpraw_pull_assert(&b); | |
9454 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
9455 | ||
9456 | m = ofpbuf_pull(&b, sizeof *m); | |
9457 | msg->bundle_id = ntohl(m->bundle_id); | |
9458 | msg->flags = ntohs(m->flags); | |
9459 | ||
6fd6ed71 | 9460 | msg->msg = b.data; |
46be7132 BP |
9461 | if (msg->msg->version != oh->version) { |
9462 | return OFPERR_NXBFC_BAD_VERSION; | |
9463 | } | |
777af88d | 9464 | inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9465 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9466 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9467 | } | |
be6f6393 JR |
9468 | if (msg->msg->xid != oh->xid) { |
9469 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9470 | } | |
777af88d | 9471 | |
c25ce22d | 9472 | /* Reject unbundlable messages. */ |
7ac27a04 JR |
9473 | if (!type_ptr) { |
9474 | type_ptr = &type; | |
9475 | } | |
9476 | error = ofptype_decode(type_ptr, msg->msg); | |
c25ce22d JR |
9477 | if (error) { |
9478 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9479 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9480 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9481 | } | |
9482 | ||
7ac27a04 | 9483 | if (!ofputil_is_bundlable(*type_ptr)) { |
44648b0f BP |
9484 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
9485 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(*type_ptr)); | |
c25ce22d JR |
9486 | return OFPERR_OFPBFC_MSG_UNSUP; |
9487 | } | |
9488 | ||
777af88d AC |
9489 | return 0; |
9490 | } | |
9491 | ||
9492 | struct ofpbuf * | |
9493 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9494 | struct ofputil_bundle_add_msg *msg) | |
9495 | { | |
9496 | struct ofpbuf *request; | |
9497 | struct ofp14_bundle_ctrl_msg *m; | |
9498 | ||
7b3dca89 JR |
9499 | /* Must use the same xid as the embedded message. */ |
9500 | request = ofpraw_alloc_xid(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
9501 | msg->msg->xid, 0); | |
777af88d AC |
9502 | m = ofpbuf_put_zeros(request, sizeof *m); |
9503 | ||
9504 | m->bundle_id = htonl(msg->bundle_id); | |
9505 | m->flags = htons(msg->flags); | |
9506 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9507 | ||
9508 | return request; | |
9509 | } | |
6159c531 JG |
9510 | |
9511 | static void | |
4e548ad9 | 9512 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9513 | { |
4e548ad9 | 9514 | struct ofputil_tlv_map *map; |
6159c531 JG |
9515 | |
9516 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9517 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9518 | |
9519 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9520 | nx_map->option_class = htons(map->option_class); | |
9521 | nx_map->option_type = map->option_type; | |
9522 | nx_map->option_len = map->option_len; | |
9523 | nx_map->index = htons(map->index); | |
9524 | } | |
9525 | } | |
9526 | ||
9527 | struct ofpbuf * | |
4e548ad9 ML |
9528 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9529 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9530 | { |
9531 | struct ofpbuf *b; | |
4e548ad9 | 9532 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9533 | |
4e548ad9 ML |
9534 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9535 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9536 | nx_ttm->command = htons(ttm->command); | |
9537 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9538 | |
9539 | return b; | |
9540 | } | |
9541 | ||
9542 | static enum ofperr | |
4e548ad9 | 9543 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9544 | struct ovs_list *mappings) |
6159c531 JG |
9545 | { |
9546 | list_init(mappings); | |
9547 | ||
9548 | while (msg->size) { | |
4e548ad9 ML |
9549 | struct nx_tlv_map *nx_map; |
9550 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9551 | |
9552 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9553 | map = xmalloc(sizeof *map); | |
9554 | list_push_back(mappings, &map->list_node); | |
9555 | ||
9556 | map->option_class = ntohs(nx_map->option_class); | |
9557 | map->option_type = nx_map->option_type; | |
9558 | ||
9559 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9560 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9561 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9562 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9563 | map->option_len); |
4e548ad9 ML |
9564 | ofputil_uninit_tlv_table(mappings); |
9565 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9566 | } |
9567 | ||
9568 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9569 | if (map->index >= max_fields) { |
6159c531 | 9570 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9571 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9572 | map->index, max_fields - 1); |
4e548ad9 ML |
9573 | ofputil_uninit_tlv_table(mappings); |
9574 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9575 | } |
9576 | } | |
9577 | ||
9578 | return 0; | |
9579 | } | |
9580 | ||
9581 | enum ofperr | |
4e548ad9 ML |
9582 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9583 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9584 | { |
9585 | struct ofpbuf msg; | |
4e548ad9 | 9586 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 JG |
9587 | |
9588 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9589 | ofpraw_pull_assert(&msg); | |
9590 | ||
4e548ad9 ML |
9591 | nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
9592 | ttm->command = ntohs(nx_ttm->command); | |
9593 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9594 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9595 | "tlv table mod command (%u) is out of range", |
9596 | ttm->command); | |
9597 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9598 | } |
9599 | ||
4e548ad9 ML |
9600 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9601 | &ttm->mappings); | |
6159c531 JG |
9602 | } |
9603 | ||
9604 | struct ofpbuf * | |
4e548ad9 ML |
9605 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9606 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9607 | { |
9608 | struct ofpbuf *b; | |
4e548ad9 | 9609 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9610 | |
4e548ad9 ML |
9611 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9612 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9613 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9614 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9615 | |
4e548ad9 | 9616 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9617 | |
9618 | return b; | |
9619 | } | |
9620 | ||
4e548ad9 | 9621 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9622 | * if successful, otherwise an ofperr. |
9623 | * | |
4e548ad9 ML |
9624 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9625 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9626 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9627 | enum ofperr |
4e548ad9 ML |
9628 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9629 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9630 | { |
9631 | struct ofpbuf msg; | |
4e548ad9 | 9632 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 JG |
9633 | |
9634 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9635 | ofpraw_pull_assert(&msg); | |
9636 | ||
4e548ad9 ML |
9637 | nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
9638 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); | |
9639 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9640 | |
4e548ad9 | 9641 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9642 | } |
9643 | ||
9644 | void | |
4e548ad9 | 9645 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9646 | { |
4e548ad9 | 9647 | struct ofputil_tlv_map *map; |
6159c531 JG |
9648 | |
9649 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9650 | free(map); | |
9651 | } | |
9652 | } | |
98090482 NR |
9653 | |
9654 | /* Decodes the OpenFlow "set async config" request and "get async config | |
9655 | * reply" message in '*oh' into an abstract form in 'master' and 'slave'. | |
9656 | * | |
9657 | * If 'loose' is true, this function ignores properties and values that it does | |
9658 | * not understand, as a controller would want to do when interpreting | |
9659 | * capabilities provided by a switch. If 'loose' is false, this function | |
9660 | * treats unknown properties and values as an error, as a switch would want to | |
9661 | * do when interpreting a configuration request made by a controller. | |
9662 | * | |
d18cc1ee AA |
9663 | * Returns 0 if successful, otherwise an OFPERR_* value. |
9664 | * | |
9665 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
9666 | * the valid range of mask. | |
9667 | * | |
9668 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
9669 | * supported.*/ | |
98090482 NR |
9670 | enum ofperr |
9671 | ofputil_decode_set_async_config(const struct ofp_header *oh, | |
9672 | uint32_t master[OAM_N_TYPES], | |
9673 | uint32_t slave[OAM_N_TYPES], | |
9674 | bool loose) | |
9675 | { | |
9676 | enum ofpraw raw; | |
9677 | struct ofpbuf b; | |
9678 | ||
9679 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9680 | raw = ofpraw_pull_assert(&b); | |
9681 | ||
9682 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
9683 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
9684 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
9685 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
9686 | ||
9687 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
9688 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
9689 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
9690 | ||
9691 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
9692 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
9693 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
9694 | ||
9695 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || | |
9696 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY) { | |
9697 | ||
9698 | while (b.size > 0) { | |
9699 | struct ofp14_async_config_prop_reasons *msg; | |
9700 | struct ofpbuf property; | |
9701 | enum ofperr error; | |
9702 | uint16_t type; | |
9703 | ||
9704 | error = ofputil_pull_property(&b, &property, &type); | |
9705 | if (error) { | |
9706 | return error; | |
9707 | } | |
9708 | ||
9709 | msg = property.data; | |
9710 | ||
9711 | if (property.size != sizeof *msg) { | |
9712 | return OFPERR_OFPBRC_BAD_LEN; | |
9713 | } | |
9714 | ||
d18cc1ee AA |
9715 | if (!loose) { |
9716 | error = ofputil_check_mask(type, ntohl(msg->mask)); | |
9717 | if (error) { | |
9718 | return error; | |
9719 | } | |
9720 | } | |
9721 | ||
98090482 NR |
9722 | switch (type) { |
9723 | case OFPACPT_PACKET_IN_SLAVE: | |
9724 | slave[OAM_PACKET_IN] = ntohl(msg->mask); | |
9725 | break; | |
9726 | ||
9727 | case OFPACPT_PACKET_IN_MASTER: | |
9728 | master[OAM_PACKET_IN] = ntohl(msg->mask); | |
9729 | break; | |
9730 | ||
9731 | case OFPACPT_PORT_STATUS_SLAVE: | |
9732 | slave[OAM_PORT_STATUS] = ntohl(msg->mask); | |
9733 | break; | |
9734 | ||
9735 | case OFPACPT_PORT_STATUS_MASTER: | |
9736 | master[OAM_PORT_STATUS] = ntohl(msg->mask); | |
9737 | break; | |
9738 | ||
9739 | case OFPACPT_FLOW_REMOVED_SLAVE: | |
9740 | slave[OAM_FLOW_REMOVED] = ntohl(msg->mask); | |
9741 | break; | |
9742 | ||
9743 | case OFPACPT_FLOW_REMOVED_MASTER: | |
9744 | master[OAM_FLOW_REMOVED] = ntohl(msg->mask); | |
9745 | break; | |
9746 | ||
9747 | case OFPACPT_ROLE_STATUS_SLAVE: | |
9748 | slave[OAM_ROLE_STATUS] = ntohl(msg->mask); | |
9749 | break; | |
9750 | ||
9751 | case OFPACPT_ROLE_STATUS_MASTER: | |
9752 | master[OAM_ROLE_STATUS] = ntohl(msg->mask); | |
9753 | break; | |
9754 | ||
9755 | case OFPACPT_TABLE_STATUS_SLAVE: | |
9756 | slave[OAM_TABLE_STATUS] = ntohl(msg->mask); | |
9757 | break; | |
9758 | ||
9759 | case OFPACPT_TABLE_STATUS_MASTER: | |
9760 | master[OAM_TABLE_STATUS] = ntohl(msg->mask); | |
9761 | break; | |
9762 | ||
9763 | case OFPACPT_REQUESTFORWARD_SLAVE: | |
9764 | slave[OAM_REQUESTFORWARD] = ntohl(msg->mask); | |
9765 | break; | |
9766 | ||
9767 | case OFPACPT_REQUESTFORWARD_MASTER: | |
9768 | master[OAM_REQUESTFORWARD] = ntohl(msg->mask); | |
9769 | break; | |
9770 | ||
9771 | default: | |
d18cc1ee | 9772 | error = loose ? 0 : OFPERR_OFPACFC_UNSUPPORTED; |
98090482 NR |
9773 | return error; |
9774 | } | |
9775 | } | |
9776 | } else { | |
9777 | return OFPERR_OFPBRC_BAD_VERSION; | |
9778 | } | |
9779 | return 0; | |
9780 | } | |
9781 | ||
9782 | /* Append all asynchronous configuration properties in GET_ASYNC_REPLY | |
9783 | * message, describing if various set of asynchronous messages are enabled | |
9784 | * or not. */ | |
9785 | static enum ofperr | |
9786 | ofputil_get_async_reply(struct ofpbuf *buf, const uint32_t master_mask, | |
9787 | const uint32_t slave_mask, const uint32_t type) | |
9788 | { | |
9789 | int role; | |
9790 | ||
9791 | for (role = 0; role < 2; role++) { | |
9792 | struct ofp14_async_config_prop_reasons *msg; | |
9793 | ||
9794 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9795 | ||
9796 | switch (type) { | |
9797 | case OAM_PACKET_IN: | |
9798 | msg->type = (role ? htons(OFPACPT_PACKET_IN_SLAVE) | |
9799 | : htons(OFPACPT_PACKET_IN_MASTER)); | |
9800 | break; | |
9801 | ||
9802 | case OAM_PORT_STATUS: | |
9803 | msg->type = (role ? htons(OFPACPT_PORT_STATUS_SLAVE) | |
9804 | : htons(OFPACPT_PORT_STATUS_MASTER)); | |
9805 | break; | |
9806 | ||
9807 | case OAM_FLOW_REMOVED: | |
9808 | msg->type = (role ? htons(OFPACPT_FLOW_REMOVED_SLAVE) | |
9809 | : htons(OFPACPT_FLOW_REMOVED_MASTER)); | |
9810 | break; | |
9811 | ||
9812 | case OAM_ROLE_STATUS: | |
9813 | msg->type = (role ? htons(OFPACPT_ROLE_STATUS_SLAVE) | |
9814 | : htons(OFPACPT_ROLE_STATUS_MASTER)); | |
9815 | break; | |
9816 | ||
9817 | case OAM_TABLE_STATUS: | |
9818 | msg->type = (role ? htons(OFPACPT_TABLE_STATUS_SLAVE) | |
9819 | : htons(OFPACPT_TABLE_STATUS_MASTER)); | |
9820 | break; | |
9821 | ||
9822 | case OAM_REQUESTFORWARD: | |
9823 | msg->type = (role ? htons(OFPACPT_REQUESTFORWARD_SLAVE) | |
9824 | : htons(OFPACPT_REQUESTFORWARD_MASTER)); | |
9825 | break; | |
9826 | ||
9827 | default: | |
9828 | return OFPERR_OFPBRC_BAD_TYPE; | |
9829 | } | |
9830 | msg->length = htons(sizeof *msg); | |
9831 | msg->mask = (role ? htonl(slave_mask) : htonl(master_mask)); | |
9832 | } | |
9833 | ||
9834 | return 0; | |
9835 | } | |
9836 | ||
9837 | /* Returns a OpenFlow message that encodes 'asynchronous configuration' properly | |
9838 | * as a reply to get async config request. */ | |
9839 | struct ofpbuf * | |
9840 | ofputil_encode_get_async_config(const struct ofp_header *oh, | |
9841 | uint32_t master[OAM_N_TYPES], | |
9842 | uint32_t slave[OAM_N_TYPES]) | |
9843 | { | |
9844 | struct ofpbuf *buf; | |
9845 | uint32_t type; | |
9846 | ||
9847 | buf = ofpraw_alloc_reply((oh->version < OFP14_VERSION | |
9848 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
9849 | : OFPRAW_OFPT14_GET_ASYNC_REPLY), oh, 0); | |
9850 | ||
9851 | if (oh->version < OFP14_VERSION) { | |
9852 | struct nx_async_config *msg; | |
9853 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9854 | ||
9855 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
9856 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
9857 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
9858 | ||
9859 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
9860 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
9861 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
9862 | } else if (oh->version == OFP14_VERSION) { | |
9863 | for (type = 0; type < OAM_N_TYPES; type++) { | |
9864 | ofputil_get_async_reply(buf, master[type], slave[type], type); | |
9865 | } | |
9866 | } | |
9867 | ||
9868 | return buf; | |
9869 | } |