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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 | ||
212 | static void | |
213 | put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap) | |
214 | { | |
215 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
216 | start_property(msg, rightmost_1bit_idx(bitmap)); | |
217 | } | |
218 | } | |
219 | ||
0596e897 BP |
220 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
221 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
222 | * is wildcarded. | |
223 | * | |
224 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
225 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
226 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
227 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
228 | * wildcarded. */ | |
229 | ovs_be32 | |
230 | ofputil_wcbits_to_netmask(int wcbits) | |
231 | { | |
232 | wcbits &= 0x3f; | |
233 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
234 | } | |
235 | ||
236 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
237 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
238 | * between 0 and 32 inclusive. | |
239 | * | |
240 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
241 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
242 | int |
243 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
244 | { | |
aad29cd1 | 245 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
246 | } |
247 | ||
eec25dc1 | 248 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 249 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
250 | * responsibility to handle the special case where the flow match's dl_vlan is |
251 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 252 | void |
eec25dc1 | 253 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 254 | { |
ffe4c74f | 255 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 256 | |
81a76618 | 257 | /* Initialize most of wc. */ |
f9ba8dad | 258 | flow_wildcards_init_catchall(wc); |
bad68a99 | 259 | |
0bdc4bec | 260 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 261 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 262 | } |
5d9499c4 BP |
263 | |
264 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 265 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 266 | } |
7257b535 | 267 | |
851d3105 | 268 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 269 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 270 | } |
26720e24 BP |
271 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
272 | >> OFPFW10_NW_SRC_SHIFT); | |
273 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
274 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 275 | |
eec25dc1 | 276 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 277 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 278 | } |
eec25dc1 | 279 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 280 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
281 | } |
282 | ||
eec25dc1 | 283 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 284 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 285 | } |
eec25dc1 | 286 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 287 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 288 | } |
e2170cff | 289 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 290 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 291 | } |
d8ae4d67 | 292 | |
eb6f28db | 293 | /* VLAN TCI mask. */ |
eec25dc1 | 294 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 295 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 296 | } |
eec25dc1 | 297 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 298 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
299 | } |
300 | } | |
301 | ||
81a76618 | 302 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 303 | void |
81a76618 BP |
304 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
305 | struct match *match) | |
306 | { | |
307 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
308 | ||
309 | /* Initialize match->wc. */ | |
296e07ac | 310 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
311 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
312 | ||
313 | /* Initialize most of match->flow. */ | |
314 | match->flow.nw_src = ofmatch->nw_src; | |
315 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 316 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
317 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
318 | match->flow.tp_src = ofmatch->tp_src; | |
319 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
320 | match->flow.dl_src = ofmatch->dl_src; |
321 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
322 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
323 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 324 | |
66642cb4 | 325 | /* Translate VLANs. */ |
0c436519 | 326 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 327 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
328 | /* Match only packets without 802.1Q header. |
329 | * | |
eec25dc1 | 330 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 331 | * |
eec25dc1 | 332 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
333 | * because we can't have a specific PCP without an 802.1Q header. |
334 | * However, older versions of OVS treated this as matching packets | |
335 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
336 | match->flow.vlan_tci = htons(0); |
337 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
338 | } else { |
339 | ovs_be16 vid, pcp, tci; | |
bf062576 | 340 | uint16_t hpcp; |
47271d0d | 341 | |
81a76618 | 342 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
343 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
344 | pcp = htons(hpcp); | |
47271d0d | 345 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 346 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
347 | } |
348 | ||
d8ae4d67 | 349 | /* Clean up. */ |
81a76618 | 350 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
351 | } |
352 | ||
81a76618 | 353 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 354 | void |
81a76618 BP |
355 | ofputil_match_to_ofp10_match(const struct match *match, |
356 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 357 | { |
81a76618 | 358 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 359 | uint32_t ofpfw; |
d8ae4d67 | 360 | |
66642cb4 | 361 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 362 | ofpfw = 0; |
4e022ec0 | 363 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
364 | ofpfw |= OFPFW10_IN_PORT; |
365 | } | |
26720e24 | 366 | if (!wc->masks.dl_type) { |
27cafc5f BP |
367 | ofpfw |= OFPFW10_DL_TYPE; |
368 | } | |
26720e24 | 369 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
370 | ofpfw |= OFPFW10_NW_PROTO; |
371 | } | |
26720e24 | 372 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 373 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 374 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 375 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 376 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 377 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 378 | } |
26720e24 | 379 | if (!wc->masks.tp_src) { |
eec25dc1 | 380 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 381 | } |
26720e24 | 382 | if (!wc->masks.tp_dst) { |
eec25dc1 | 383 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 384 | } |
26720e24 | 385 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 386 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 387 | } |
26720e24 | 388 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 389 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 390 | } |
ff9d3826 | 391 | |
66642cb4 | 392 | /* Translate VLANs. */ |
81a76618 BP |
393 | ofmatch->dl_vlan = htons(0); |
394 | ofmatch->dl_vlan_pcp = 0; | |
395 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 396 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
397 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
398 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
399 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 400 | } else { |
81a76618 | 401 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 402 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 403 | } else { |
81a76618 | 404 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
405 | } |
406 | ||
81a76618 | 407 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 408 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 409 | } else { |
81a76618 | 410 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
411 | } |
412 | } | |
413 | ||
414 | /* Compose most of the match structure. */ | |
81a76618 | 415 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 416 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
417 | ofmatch->dl_src = match->flow.dl_src; |
418 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
419 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
420 | ofmatch->nw_src = match->flow.nw_src; | |
421 | ofmatch->nw_dst = match->flow.nw_dst; | |
422 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
423 | ofmatch->nw_proto = match->flow.nw_proto; | |
424 | ofmatch->tp_src = match->flow.tp_src; | |
425 | ofmatch->tp_dst = match->flow.tp_dst; | |
426 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
427 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
428 | } |
429 | ||
aa319503 | 430 | enum ofperr |
81a76618 BP |
431 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
432 | uint16_t *padded_match_len) | |
aa319503 | 433 | { |
6fd6ed71 | 434 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 435 | uint16_t match_len; |
aa319503 | 436 | |
6fd6ed71 | 437 | if (buf->size < sizeof *omh) { |
aa319503 BP |
438 | return OFPERR_OFPBMC_BAD_LEN; |
439 | } | |
440 | ||
36a16881 SH |
441 | match_len = ntohs(omh->length); |
442 | ||
aa319503 | 443 | switch (ntohs(omh->type)) { |
36a16881 SH |
444 | case OFPMT_STANDARD: { |
445 | struct ofp11_match *om; | |
446 | ||
6fd6ed71 | 447 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
448 | return OFPERR_OFPBMC_BAD_LEN; |
449 | } | |
450 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
451 | if (padded_match_len) { |
452 | *padded_match_len = match_len; | |
453 | } | |
81a76618 | 454 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
455 | } |
456 | ||
457 | case OFPMT_OXM: | |
458 | if (padded_match_len) { | |
459 | *padded_match_len = ROUND_UP(match_len, 8); | |
460 | } | |
81a76618 | 461 | return oxm_pull_match(buf, match); |
aa319503 BP |
462 | |
463 | default: | |
464 | return OFPERR_OFPBMC_BAD_TYPE; | |
465 | } | |
466 | } | |
467 | ||
3f0f48cf YT |
468 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
469 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 470 | enum ofperr |
81a76618 BP |
471 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
472 | struct match *match) | |
410698cf | 473 | { |
81a76618 | 474 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 475 | bool ipv4, arp, rarp; |
410698cf | 476 | |
81a76618 | 477 | match_init_catchall(match); |
410698cf BP |
478 | |
479 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 480 | ofp_port_t ofp_port; |
410698cf BP |
481 | enum ofperr error; |
482 | ||
81a76618 | 483 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
484 | if (error) { |
485 | return OFPERR_OFPBMC_BAD_VALUE; | |
486 | } | |
81a76618 | 487 | match_set_in_port(match, ofp_port); |
410698cf BP |
488 | } |
489 | ||
74ff3298 JR |
490 | match_set_dl_src_masked(match, ofmatch->dl_src, |
491 | eth_addr_invert(ofmatch->dl_src_mask)); | |
492 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
493 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
494 | |
495 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 496 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 497 | /* Match only packets without a VLAN tag. */ |
81a76618 | 498 | match->flow.vlan_tci = htons(0); |
b8266395 | 499 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 500 | } else { |
81a76618 | 501 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 502 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
503 | match->flow.vlan_tci = htons(VLAN_CFI); |
504 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
505 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 506 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
507 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
508 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
509 | } else { |
510 | /* Invalid VID. */ | |
511 | return OFPERR_OFPBMC_BAD_VALUE; | |
512 | } | |
513 | ||
514 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
515 | if (ofmatch->dl_vlan_pcp <= 7) { |
516 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
517 | << VLAN_PCP_SHIFT); | |
518 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
519 | } else { |
520 | /* Invalid PCP. */ | |
521 | return OFPERR_OFPBMC_BAD_VALUE; | |
522 | } | |
523 | } | |
524 | } | |
525 | } | |
526 | ||
527 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
528 | match_set_dl_type(match, |
529 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
530 | } |
531 | ||
81a76618 BP |
532 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
533 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 534 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
535 | |
536 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 537 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
538 | /* Invalid TOS. */ |
539 | return OFPERR_OFPBMC_BAD_VALUE; | |
540 | } | |
541 | ||
81a76618 | 542 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
543 | } |
544 | ||
8087f5ff | 545 | if (ipv4 || arp || rarp) { |
410698cf | 546 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 547 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 548 | } |
81a76618 BP |
549 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
550 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
551 | } |
552 | ||
553 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
554 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 555 | switch (match->flow.nw_proto) { |
410698cf BP |
556 | case IPPROTO_ICMP: |
557 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
558 | * | |
559 | * The tp_src and tp_dst fields will be ignored unless the | |
560 | * network protocol specified is as TCP, UDP or SCTP. | |
561 | * | |
562 | * but I'm pretty sure we should support ICMP too, otherwise | |
563 | * that's a regression from OF1.0. */ | |
564 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 565 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 566 | if (icmp_type < 0x100) { |
81a76618 | 567 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
568 | } else { |
569 | return OFPERR_OFPBMC_BAD_FIELD; | |
570 | } | |
571 | } | |
572 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 573 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 574 | if (icmp_code < 0x100) { |
81a76618 | 575 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
576 | } else { |
577 | return OFPERR_OFPBMC_BAD_FIELD; | |
578 | } | |
579 | } | |
580 | break; | |
581 | ||
582 | case IPPROTO_TCP: | |
583 | case IPPROTO_UDP: | |
0d56eaf2 | 584 | case IPPROTO_SCTP: |
410698cf | 585 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 586 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
587 | } |
588 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 589 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
590 | } |
591 | break; | |
592 | ||
410698cf BP |
593 | default: |
594 | /* OF1.1 says explicitly to ignore this. */ | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
b02475c5 | 599 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 600 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 601 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
602 | } |
603 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 604 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
605 | } |
606 | } | |
607 | ||
81a76618 BP |
608 | match_set_metadata_masked(match, ofmatch->metadata, |
609 | ~ofmatch->metadata_mask); | |
410698cf BP |
610 | |
611 | return 0; | |
612 | } | |
613 | ||
81a76618 | 614 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 615 | void |
81a76618 BP |
616 | ofputil_match_to_ofp11_match(const struct match *match, |
617 | struct ofp11_match *ofmatch) | |
410698cf BP |
618 | { |
619 | uint32_t wc = 0; | |
410698cf | 620 | |
81a76618 BP |
621 | memset(ofmatch, 0, sizeof *ofmatch); |
622 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
623 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 624 | |
4e022ec0 | 625 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
626 | wc |= OFPFW11_IN_PORT; |
627 | } else { | |
4e022ec0 | 628 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
629 | } |
630 | ||
74ff3298 JR |
631 | ofmatch->dl_src = match->flow.dl_src; |
632 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
633 | ofmatch->dl_dst = match->flow.dl_dst; | |
634 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 635 | |
81a76618 | 636 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 637 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
638 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
639 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
640 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
641 | wc |= OFPFW11_DL_VLAN_PCP; |
642 | } else { | |
81a76618 BP |
643 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
644 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 645 | } else { |
81a76618 | 646 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
647 | } |
648 | ||
81a76618 | 649 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
650 | wc |= OFPFW11_DL_VLAN_PCP; |
651 | } else { | |
81a76618 | 652 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
653 | } |
654 | } | |
655 | ||
81a76618 | 656 | if (!match->wc.masks.dl_type) { |
410698cf BP |
657 | wc |= OFPFW11_DL_TYPE; |
658 | } else { | |
81a76618 | 659 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
660 | } |
661 | ||
81a76618 | 662 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
663 | wc |= OFPFW11_NW_TOS; |
664 | } else { | |
81a76618 | 665 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
666 | } |
667 | ||
81a76618 | 668 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
669 | wc |= OFPFW11_NW_PROTO; |
670 | } else { | |
81a76618 | 671 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
672 | } |
673 | ||
81a76618 BP |
674 | ofmatch->nw_src = match->flow.nw_src; |
675 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
676 | ofmatch->nw_dst = match->flow.nw_dst; | |
677 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 678 | |
81a76618 | 679 | if (!match->wc.masks.tp_src) { |
410698cf BP |
680 | wc |= OFPFW11_TP_SRC; |
681 | } else { | |
81a76618 | 682 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
683 | } |
684 | ||
81a76618 | 685 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
686 | wc |= OFPFW11_TP_DST; |
687 | } else { | |
81a76618 | 688 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
689 | } |
690 | ||
8bfd0fda | 691 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
692 | wc |= OFPFW11_MPLS_LABEL; |
693 | } else { | |
8bfd0fda BP |
694 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
695 | match->flow.mpls_lse[0])); | |
097d4939 JR |
696 | } |
697 | ||
8bfd0fda | 698 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
699 | wc |= OFPFW11_MPLS_TC; |
700 | } else { | |
8bfd0fda | 701 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 702 | } |
410698cf | 703 | |
81a76618 BP |
704 | ofmatch->metadata = match->flow.metadata; |
705 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 706 | |
81a76618 | 707 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
708 | } |
709 | ||
75fa58f8 BP |
710 | /* Returns the "typical" length of a match for 'protocol', for use in |
711 | * estimating space to preallocate. */ | |
712 | int | |
713 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
714 | { | |
715 | switch (protocol) { | |
716 | case OFPUTIL_P_OF10_STD: | |
717 | case OFPUTIL_P_OF10_STD_TID: | |
718 | return sizeof(struct ofp10_match); | |
719 | ||
720 | case OFPUTIL_P_OF10_NXM: | |
721 | case OFPUTIL_P_OF10_NXM_TID: | |
722 | return NXM_TYPICAL_LEN; | |
723 | ||
724 | case OFPUTIL_P_OF11_STD: | |
725 | return sizeof(struct ofp11_match); | |
726 | ||
727 | case OFPUTIL_P_OF12_OXM: | |
728 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 729 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 730 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
731 | return NXM_TYPICAL_LEN; |
732 | ||
733 | default: | |
428b2edd | 734 | OVS_NOT_REACHED(); |
75fa58f8 BP |
735 | } |
736 | } | |
737 | ||
738 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
739 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
740 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
741 | * in OpenFlow 1.1 or later. | |
742 | * | |
743 | * This function can cause 'b''s data to be reallocated. | |
744 | * | |
745 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
746 | * returns zero. */ | |
747 | int | |
748 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
749 | enum ofputil_protocol protocol) | |
750 | { | |
751 | switch (protocol) { | |
752 | case OFPUTIL_P_OF10_STD: | |
753 | case OFPUTIL_P_OF10_STD_TID: | |
754 | case OFPUTIL_P_OF10_NXM: | |
755 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 756 | OVS_NOT_REACHED(); |
75fa58f8 BP |
757 | |
758 | case OFPUTIL_P_OF11_STD: { | |
759 | struct ofp11_match *om; | |
760 | ||
761 | /* Make sure that no padding is needed. */ | |
762 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
763 | ||
764 | om = ofpbuf_put_uninit(b, sizeof *om); | |
765 | ofputil_match_to_ofp11_match(match, om); | |
766 | return sizeof *om; | |
767 | } | |
768 | ||
769 | case OFPUTIL_P_OF12_OXM: | |
770 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 771 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 772 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
773 | return oxm_put_match(b, match, |
774 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
775 | } |
776 | ||
428b2edd | 777 | OVS_NOT_REACHED(); |
75fa58f8 BP |
778 | } |
779 | ||
36956a7d | 780 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
781 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
782 | * structure. */ | |
36956a7d BP |
783 | ovs_be16 |
784 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
785 | { | |
786 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
787 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
788 | : flow_dl_type); | |
789 | } | |
790 | ||
eec25dc1 | 791 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
792 | * structure, returns the corresponding 'dl_type' value for use in struct |
793 | * flow. */ | |
794 | ovs_be16 | |
795 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
796 | { | |
797 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
798 | ? htons(FLOW_DL_TYPE_NONE) | |
799 | : ofp_dl_type); | |
800 | } | |
2e4f5fcf | 801 | \f |
27527aa0 | 802 | /* Protocols. */ |
7fa91113 | 803 | |
27527aa0 BP |
804 | struct proto_abbrev { |
805 | enum ofputil_protocol protocol; | |
806 | const char *name; | |
807 | }; | |
808 | ||
809 | /* Most users really don't care about some of the differences between | |
aa233d57 | 810 | * protocols. These abbreviations help with that. */ |
27527aa0 | 811 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
812 | { OFPUTIL_P_ANY, "any" }, |
813 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
814 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
815 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
816 | }; |
817 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
818 | ||
819 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 820 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 821 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 822 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 823 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 824 | OFPUTIL_P_OF11_STD, |
85813857 BP |
825 | OFPUTIL_P_OF10_NXM, |
826 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
827 | }; |
828 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
829 | ||
4f13da56 BP |
830 | /* Returns the set of ofputil_protocols that are supported with the given |
831 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
832 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
833 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 834 | enum ofputil_protocol |
4f13da56 | 835 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
836 | { |
837 | switch (version) { | |
2e3fa633 | 838 | case OFP10_VERSION: |
4f13da56 | 839 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
840 | case OFP11_VERSION: |
841 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 842 | case OFP12_VERSION: |
85813857 | 843 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
844 | case OFP13_VERSION: |
845 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
846 | case OFP14_VERSION: |
847 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
848 | case OFP15_VERSION: |
849 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
850 | default: |
851 | return 0; | |
27527aa0 BP |
852 | } |
853 | } | |
854 | ||
4f13da56 BP |
855 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
856 | * connection that has negotiated the given 'version'. 'version' should | |
857 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
858 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
859 | * outside the valid range. */ | |
860 | enum ofputil_protocol | |
861 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
862 | { | |
863 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
864 | } | |
865 | ||
44d3732d | 866 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 867 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 868 | enum ofp_version |
9e1fd49b BP |
869 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
870 | { | |
871 | switch (protocol) { | |
85813857 BP |
872 | case OFPUTIL_P_OF10_STD: |
873 | case OFPUTIL_P_OF10_STD_TID: | |
874 | case OFPUTIL_P_OF10_NXM: | |
875 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 876 | return OFP10_VERSION; |
75fa58f8 BP |
877 | case OFPUTIL_P_OF11_STD: |
878 | return OFP11_VERSION; | |
85813857 | 879 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 880 | return OFP12_VERSION; |
2e1ae200 JR |
881 | case OFPUTIL_P_OF13_OXM: |
882 | return OFP13_VERSION; | |
c37c0382 AC |
883 | case OFPUTIL_P_OF14_OXM: |
884 | return OFP14_VERSION; | |
42dccab5 BP |
885 | case OFPUTIL_P_OF15_OXM: |
886 | return OFP15_VERSION; | |
9e1fd49b BP |
887 | } |
888 | ||
428b2edd | 889 | OVS_NOT_REACHED(); |
9e1fd49b BP |
890 | } |
891 | ||
4f13da56 BP |
892 | /* Returns a bitmap of OpenFlow versions that are supported by at |
893 | * least one of the 'protocols'. */ | |
894 | uint32_t | |
895 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
896 | { | |
897 | uint32_t bitmap = 0; | |
898 | ||
899 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
900 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
901 | ||
902 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
903 | } | |
904 | ||
905 | return bitmap; | |
906 | } | |
907 | ||
908 | /* Returns the set of protocols that are supported on top of the | |
909 | * OpenFlow versions included in 'bitmap'. */ | |
910 | enum ofputil_protocol | |
911 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
912 | { | |
913 | enum ofputil_protocol protocols = 0; | |
914 | ||
915 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
916 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
917 | ||
918 | protocols |= ofputil_protocols_from_ofp_version(version); | |
919 | } | |
920 | ||
921 | return protocols; | |
922 | } | |
923 | ||
27527aa0 BP |
924 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
925 | * otherwise. */ | |
7fa91113 | 926 | bool |
27527aa0 | 927 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 928 | { |
27527aa0 BP |
929 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
930 | } | |
931 | ||
932 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
933 | * extension turned on or off if 'enable' is true or false, respectively. | |
934 | * | |
935 | * This extension is only useful for protocols whose "standard" version does | |
936 | * not allow specific tables to be modified. In particular, this is true of | |
937 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
938 | * specifies a table ID and so there is no need for such an extension. When | |
939 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
940 | * extension, this function just returns its 'protocol' argument unchanged | |
941 | * regardless of the value of 'enable'. */ | |
942 | enum ofputil_protocol | |
943 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
944 | { | |
945 | switch (protocol) { | |
85813857 BP |
946 | case OFPUTIL_P_OF10_STD: |
947 | case OFPUTIL_P_OF10_STD_TID: | |
948 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 949 | |
85813857 BP |
950 | case OFPUTIL_P_OF10_NXM: |
951 | case OFPUTIL_P_OF10_NXM_TID: | |
952 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 953 | |
75fa58f8 BP |
954 | case OFPUTIL_P_OF11_STD: |
955 | return OFPUTIL_P_OF11_STD; | |
956 | ||
85813857 BP |
957 | case OFPUTIL_P_OF12_OXM: |
958 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 959 | |
2e1ae200 JR |
960 | case OFPUTIL_P_OF13_OXM: |
961 | return OFPUTIL_P_OF13_OXM; | |
962 | ||
c37c0382 AC |
963 | case OFPUTIL_P_OF14_OXM: |
964 | return OFPUTIL_P_OF14_OXM; | |
965 | ||
42dccab5 BP |
966 | case OFPUTIL_P_OF15_OXM: |
967 | return OFPUTIL_P_OF15_OXM; | |
968 | ||
27527aa0 | 969 | default: |
428b2edd | 970 | OVS_NOT_REACHED(); |
7fa91113 | 971 | } |
27527aa0 | 972 | } |
7fa91113 | 973 | |
27527aa0 BP |
974 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
975 | * some extension to a standard protocol version, the return value is the | |
976 | * standard version of that protocol without any extension. If 'protocol' is a | |
977 | * standard protocol version, returns 'protocol' unchanged. */ | |
978 | enum ofputil_protocol | |
979 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
980 | { | |
981 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
982 | } |
983 | ||
27527aa0 BP |
984 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
985 | enum ofputil_protocol | |
986 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
987 | enum ofputil_protocol new_base) | |
7fa91113 | 988 | { |
27527aa0 BP |
989 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
990 | ||
991 | switch (new_base) { | |
85813857 BP |
992 | case OFPUTIL_P_OF10_STD: |
993 | case OFPUTIL_P_OF10_STD_TID: | |
994 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 995 | |
85813857 BP |
996 | case OFPUTIL_P_OF10_NXM: |
997 | case OFPUTIL_P_OF10_NXM_TID: | |
998 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 999 | |
75fa58f8 BP |
1000 | case OFPUTIL_P_OF11_STD: |
1001 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
1002 | ||
85813857 BP |
1003 | case OFPUTIL_P_OF12_OXM: |
1004 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 1005 | |
2e1ae200 JR |
1006 | case OFPUTIL_P_OF13_OXM: |
1007 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
1008 | ||
c37c0382 AC |
1009 | case OFPUTIL_P_OF14_OXM: |
1010 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
1011 | ||
42dccab5 BP |
1012 | case OFPUTIL_P_OF15_OXM: |
1013 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
1014 | ||
7fa91113 | 1015 | default: |
428b2edd | 1016 | OVS_NOT_REACHED(); |
7fa91113 BP |
1017 | } |
1018 | } | |
1019 | ||
27527aa0 BP |
1020 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
1021 | * 'protocol' is either a single protocol or it is a combination of protocols | |
1022 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
1023 | const char * | |
1024 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 1025 | { |
27527aa0 BP |
1026 | const struct proto_abbrev *p; |
1027 | ||
1028 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
1029 | * warning if we forget any. */ | |
1030 | switch (protocol) { | |
85813857 | 1031 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1032 | return "NXM-table_id"; |
1033 | ||
85813857 | 1034 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
1035 | return "NXM+table_id"; |
1036 | ||
85813857 | 1037 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1038 | return "OpenFlow10-table_id"; |
1039 | ||
85813857 | 1040 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 1041 | return "OpenFlow10+table_id"; |
44d3732d | 1042 | |
75fa58f8 BP |
1043 | case OFPUTIL_P_OF11_STD: |
1044 | return "OpenFlow11"; | |
1045 | ||
85813857 | 1046 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 1047 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
1048 | |
1049 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 1050 | return "OXM-OpenFlow13"; |
c37c0382 AC |
1051 | |
1052 | case OFPUTIL_P_OF14_OXM: | |
1053 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
1054 | |
1055 | case OFPUTIL_P_OF15_OXM: | |
1056 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
1057 | } |
1058 | ||
1059 | /* Check abbreviations. */ | |
1060 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1061 | if (protocol == p->protocol) { | |
1062 | return p->name; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | return NULL; | |
1067 | } | |
1068 | ||
1069 | /* Returns a string that represents 'protocols'. The return value might be a | |
1070 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
1071 | * value is "none" if 'protocols' is 0. | |
1072 | * | |
1073 | * The caller must free the returned string (with free()). */ | |
1074 | char * | |
1075 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
1076 | { | |
1077 | struct ds s; | |
1078 | ||
cb22974d | 1079 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
1080 | if (protocols == 0) { |
1081 | return xstrdup("none"); | |
1082 | } | |
1083 | ||
1084 | ds_init(&s); | |
1085 | while (protocols) { | |
1086 | const struct proto_abbrev *p; | |
1087 | int i; | |
1088 | ||
1089 | if (s.length) { | |
1090 | ds_put_char(&s, ','); | |
1091 | } | |
1092 | ||
1093 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1094 | if ((protocols & p->protocol) == p->protocol) { | |
1095 | ds_put_cstr(&s, p->name); | |
1096 | protocols &= ~p->protocol; | |
1097 | goto match; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1102 | enum ofputil_protocol bit = 1u << i; | |
1103 | ||
1104 | if (protocols & bit) { | |
1105 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1106 | protocols &= ~bit; | |
1107 | goto match; | |
1108 | } | |
1109 | } | |
428b2edd | 1110 | OVS_NOT_REACHED(); |
27527aa0 BP |
1111 | |
1112 | match: ; | |
1113 | } | |
1114 | return ds_steal_cstr(&s); | |
1115 | } | |
1116 | ||
1117 | static enum ofputil_protocol | |
1118 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1119 | { | |
1120 | const struct proto_abbrev *p; | |
1121 | int i; | |
1122 | ||
1123 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1124 | enum ofputil_protocol bit = 1u << i; | |
1125 | const char *name = ofputil_protocol_to_string(bit); | |
1126 | ||
1127 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1128 | return bit; | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1133 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1134 | return p->protocol; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1142 | * single protocol name or abbreviation or a comma-separated list of them. | |
1143 | * | |
1144 | * Aborts the program with an error message if 's' is invalid. */ | |
1145 | enum ofputil_protocol | |
1146 | ofputil_protocols_from_string(const char *s) | |
1147 | { | |
1148 | const char *orig_s = s; | |
1149 | enum ofputil_protocol protocols; | |
1150 | ||
1151 | protocols = 0; | |
1152 | while (*s) { | |
1153 | enum ofputil_protocol p; | |
1154 | size_t n; | |
1155 | ||
1156 | n = strcspn(s, ","); | |
1157 | if (n == 0) { | |
1158 | s++; | |
1159 | continue; | |
1160 | } | |
1161 | ||
1162 | p = ofputil_protocol_from_string__(s, n); | |
1163 | if (!p) { | |
1164 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1165 | } | |
1166 | protocols |= p; | |
1167 | ||
1168 | s += n; | |
1169 | } | |
1170 | ||
1171 | if (!protocols) { | |
1172 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1173 | } | |
1174 | return protocols; | |
88ca35ee BP |
1175 | } |
1176 | ||
9d84066c | 1177 | enum ofp_version |
03e1125c SH |
1178 | ofputil_version_from_string(const char *s) |
1179 | { | |
1180 | if (!strcasecmp(s, "OpenFlow10")) { | |
1181 | return OFP10_VERSION; | |
1182 | } | |
1183 | if (!strcasecmp(s, "OpenFlow11")) { | |
1184 | return OFP11_VERSION; | |
1185 | } | |
1186 | if (!strcasecmp(s, "OpenFlow12")) { | |
1187 | return OFP12_VERSION; | |
1188 | } | |
2e1ae200 JR |
1189 | if (!strcasecmp(s, "OpenFlow13")) { |
1190 | return OFP13_VERSION; | |
1191 | } | |
c37c0382 AC |
1192 | if (!strcasecmp(s, "OpenFlow14")) { |
1193 | return OFP14_VERSION; | |
1194 | } | |
42dccab5 BP |
1195 | if (!strcasecmp(s, "OpenFlow15")) { |
1196 | return OFP15_VERSION; | |
1197 | } | |
7beaa082 | 1198 | return 0; |
03e1125c SH |
1199 | } |
1200 | ||
1201 | static bool | |
e091ef84 | 1202 | is_delimiter(unsigned char c) |
03e1125c SH |
1203 | { |
1204 | return isspace(c) || c == ','; | |
1205 | } | |
1206 | ||
1207 | uint32_t | |
1208 | ofputil_versions_from_string(const char *s) | |
1209 | { | |
1210 | size_t i = 0; | |
1211 | uint32_t bitmap = 0; | |
1212 | ||
1213 | while (s[i]) { | |
1214 | size_t j; | |
7beaa082 | 1215 | int version; |
03e1125c SH |
1216 | char *key; |
1217 | ||
1218 | if (is_delimiter(s[i])) { | |
1219 | i++; | |
1220 | continue; | |
1221 | } | |
1222 | j = 0; | |
1223 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1224 | j++; | |
1225 | } | |
1226 | key = xmemdup0(s + i, j); | |
1227 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1228 | if (!version) { |
1229 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1230 | } | |
03e1125c SH |
1231 | free(key); |
1232 | bitmap |= 1u << version; | |
1233 | i += j; | |
1234 | } | |
1235 | ||
1236 | return bitmap; | |
1237 | } | |
1238 | ||
7beaa082 SH |
1239 | uint32_t |
1240 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1241 | { | |
1242 | uint32_t bitmap = 0; | |
1243 | ||
1244 | while (count--) { | |
1245 | int version = ofputil_version_from_string(s[count]); | |
1246 | if (!version) { | |
1247 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1248 | } else { | |
1249 | bitmap |= 1u << version; | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | return bitmap; | |
1254 | } | |
1255 | ||
03e1125c SH |
1256 | const char * |
1257 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1258 | { | |
1259 | switch (ofp_version) { | |
1260 | case OFP10_VERSION: | |
1261 | return "OpenFlow10"; | |
1262 | case OFP11_VERSION: | |
1263 | return "OpenFlow11"; | |
1264 | case OFP12_VERSION: | |
1265 | return "OpenFlow12"; | |
2e1ae200 JR |
1266 | case OFP13_VERSION: |
1267 | return "OpenFlow13"; | |
c37c0382 AC |
1268 | case OFP14_VERSION: |
1269 | return "OpenFlow14"; | |
42dccab5 BP |
1270 | case OFP15_VERSION: |
1271 | return "OpenFlow15"; | |
03e1125c | 1272 | default: |
428b2edd | 1273 | OVS_NOT_REACHED(); |
03e1125c SH |
1274 | } |
1275 | } | |
1276 | ||
54834960 EJ |
1277 | bool |
1278 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1279 | { | |
1280 | switch (packet_in_format) { | |
1281 | case NXPIF_OPENFLOW10: | |
1282 | case NXPIF_NXM: | |
1283 | return true; | |
1284 | } | |
1285 | ||
1286 | return false; | |
1287 | } | |
1288 | ||
1289 | const char * | |
1290 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1291 | { | |
1292 | switch (packet_in_format) { | |
1293 | case NXPIF_OPENFLOW10: | |
1294 | return "openflow10"; | |
1295 | case NXPIF_NXM: | |
1296 | return "nxm"; | |
1297 | default: | |
428b2edd | 1298 | OVS_NOT_REACHED(); |
54834960 EJ |
1299 | } |
1300 | } | |
1301 | ||
1302 | int | |
1303 | ofputil_packet_in_format_from_string(const char *s) | |
1304 | { | |
1305 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1306 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1307 | : -1); | |
1308 | } | |
1309 | ||
03e1125c SH |
1310 | void |
1311 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1312 | { | |
8989046d | 1313 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1314 | } |
1315 | ||
1316 | void | |
1317 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1318 | { | |
1319 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1320 | } | |
1321 | ||
1322 | static void | |
1323 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1324 | void (*format_version)(struct ds *msg, | |
1325 | enum ofp_version)) | |
1326 | { | |
1327 | while (bitmap) { | |
1328 | format_version(msg, raw_ctz(bitmap)); | |
1329 | bitmap = zero_rightmost_1bit(bitmap); | |
1330 | if (bitmap) { | |
1331 | ds_put_cstr(msg, ", "); | |
1332 | } | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | void | |
1337 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1338 | { | |
1339 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1340 | } | |
1341 | ||
1342 | void | |
1343 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1344 | { | |
1345 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1346 | } | |
1347 | ||
de6c85b0 SH |
1348 | static bool |
1349 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1350 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1351 | { |
1352 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1353 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1354 | uint32_t allowed_versions; |
de6c85b0 SH |
1355 | |
1356 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1357 | return false; | |
1358 | } | |
1359 | ||
1360 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1361 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1362 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1363 | * wire-protocol versions greater than 31. |
1364 | */ | |
0935de41 | 1365 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1366 | |
0935de41 | 1367 | if (allowed_versions & 1) { |
de6c85b0 SH |
1368 | /* There's no OpenFlow version 0. */ |
1369 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1370 | "version 0x00"); | |
0935de41 | 1371 | allowed_versions &= ~1u; |
de6c85b0 SH |
1372 | } |
1373 | ||
0935de41 | 1374 | if (!allowed_versions) { |
de6c85b0 SH |
1375 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1376 | "version (between 0x01 and 0x1f)"); | |
1377 | return false; | |
1378 | } | |
1379 | ||
0935de41 | 1380 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1381 | return true; |
1382 | } | |
1383 | ||
1384 | static uint32_t | |
1385 | version_bitmap_from_version(uint8_t ofp_version) | |
1386 | { | |
1387 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1388 | } | |
1389 | ||
1390 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1391 | * the set of OpenFlow versions for which 'oh' announces support. | |
1392 | * | |
1393 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1394 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1395 | * returns false if 'oh' contains some data that could not be fully understood, | |
1396 | * true if 'oh' was completely parsed. */ | |
1397 | bool | |
1398 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1399 | { | |
1400 | struct ofpbuf msg; | |
1401 | bool ok = true; | |
1402 | ||
1403 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1404 | ofpbuf_pull(&msg, sizeof *oh); | |
1405 | ||
1406 | *allowed_versions = version_bitmap_from_version(oh->version); | |
6fd6ed71 | 1407 | while (msg.size) { |
de6c85b0 SH |
1408 | const struct ofp_hello_elem_header *oheh; |
1409 | unsigned int len; | |
1410 | ||
6fd6ed71 | 1411 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1412 | return false; |
1413 | } | |
1414 | ||
6fd6ed71 | 1415 | oheh = msg.data; |
de6c85b0 SH |
1416 | len = ntohs(oheh->length); |
1417 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1418 | return false; | |
1419 | } | |
1420 | ||
1421 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1422 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1423 | ok = false; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | return ok; | |
1428 | } | |
1429 | ||
1430 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1431 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1432 | static bool |
de6c85b0 SH |
1433 | should_send_version_bitmap(uint32_t allowed_versions) |
1434 | { | |
1435 | return !is_pow2((allowed_versions >> 1) + 1); | |
1436 | } | |
1437 | ||
1438 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1439 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1440 | struct ofpbuf * | |
1441 | ofputil_encode_hello(uint32_t allowed_versions) | |
1442 | { | |
1443 | enum ofp_version ofp_version; | |
1444 | struct ofpbuf *msg; | |
1445 | ||
1446 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1447 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1448 | ||
1449 | if (should_send_version_bitmap(allowed_versions)) { | |
1450 | struct ofp_hello_elem_header *oheh; | |
1451 | uint16_t map_len; | |
1452 | ||
74c4b9c1 | 1453 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1454 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1455 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1456 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1457 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1458 | |
1459 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1460 | } |
1461 | ||
1462 | return msg; | |
1463 | } | |
1464 | ||
27527aa0 BP |
1465 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1466 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1467 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1468 | * connection if the switch processes the returned message correctly. (If | |
1469 | * '*next != want' then the caller will have to iterate.) | |
1470 | * | |
e43928f2 BP |
1471 | * If 'current == want', or if it is not possible to transition from 'current' |
1472 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1473 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1474 | struct ofpbuf * |
1475 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1476 | enum ofputil_protocol want, | |
1477 | enum ofputil_protocol *next) | |
1478 | { | |
e43928f2 | 1479 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1480 | enum ofputil_protocol cur_base, want_base; |
1481 | bool cur_tid, want_tid; | |
1482 | ||
e43928f2 BP |
1483 | cur_version = ofputil_protocol_to_ofp_version(current); |
1484 | want_version = ofputil_protocol_to_ofp_version(want); | |
1485 | if (cur_version != want_version) { | |
1486 | *next = current; | |
1487 | return NULL; | |
1488 | } | |
1489 | ||
27527aa0 BP |
1490 | cur_base = ofputil_protocol_to_base(current); |
1491 | want_base = ofputil_protocol_to_base(want); | |
1492 | if (cur_base != want_base) { | |
1493 | *next = ofputil_protocol_set_base(current, want_base); | |
1494 | ||
1495 | switch (want_base) { | |
85813857 | 1496 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1497 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1498 | ||
85813857 | 1499 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1500 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1501 | ||
75fa58f8 | 1502 | case OFPUTIL_P_OF11_STD: |
85813857 | 1503 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1504 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1505 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1506 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1507 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1508 | * verified above that we're not trying to change versions. */ |
428b2edd | 1509 | OVS_NOT_REACHED(); |
44d3732d | 1510 | |
85813857 BP |
1511 | case OFPUTIL_P_OF10_STD_TID: |
1512 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1513 | OVS_NOT_REACHED(); |
27527aa0 BP |
1514 | } |
1515 | } | |
1516 | ||
1517 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1518 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1519 | if (cur_tid != want_tid) { | |
1520 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1521 | return ofputil_make_flow_mod_table_id(want_tid); | |
1522 | } | |
1523 | ||
cb22974d | 1524 | ovs_assert(current == want); |
27527aa0 BP |
1525 | |
1526 | *next = current; | |
1527 | return NULL; | |
88ca35ee BP |
1528 | } |
1529 | ||
27527aa0 BP |
1530 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1531 | * format to 'nxff'. */ | |
88ca35ee | 1532 | struct ofpbuf * |
27527aa0 | 1533 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1534 | { |
73dbf4ab | 1535 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1536 | struct ofpbuf *msg; |
1537 | ||
cb22974d | 1538 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1539 | |
982697a4 BP |
1540 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1541 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1542 | sff->format = htonl(nxff); |
88ca35ee BP |
1543 | |
1544 | return msg; | |
1545 | } | |
1546 | ||
27527aa0 BP |
1547 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1548 | * otherwise. */ | |
1549 | enum ofputil_protocol | |
1550 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1551 | { | |
1552 | switch (flow_format) { | |
1553 | case NXFF_OPENFLOW10: | |
85813857 | 1554 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1555 | |
1556 | case NXFF_NXM: | |
85813857 | 1557 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1558 | |
1559 | default: | |
1560 | return 0; | |
1561 | } | |
1562 | } | |
1563 | ||
1564 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1565 | bool | |
1566 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1567 | { | |
1568 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1569 | } | |
1570 | ||
1571 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1572 | * value. */ | |
1573 | const char * | |
1574 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1575 | { | |
1576 | switch (flow_format) { | |
1577 | case NXFF_OPENFLOW10: | |
1578 | return "openflow10"; | |
1579 | case NXFF_NXM: | |
1580 | return "nxm"; | |
1581 | default: | |
428b2edd | 1582 | OVS_NOT_REACHED(); |
27527aa0 BP |
1583 | } |
1584 | } | |
1585 | ||
54834960 | 1586 | struct ofpbuf * |
3f4a1939 SH |
1587 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1588 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1589 | { |
73dbf4ab | 1590 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1591 | struct ofpbuf *msg; |
1592 | ||
3f4a1939 | 1593 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1594 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1595 | spif->format = htonl(packet_in_format); |
1596 | ||
1597 | return msg; | |
1598 | } | |
1599 | ||
6c1491fb BP |
1600 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1601 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1602 | struct ofpbuf * | |
1603 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1604 | { | |
73dbf4ab | 1605 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1606 | struct ofpbuf *msg; |
1607 | ||
982697a4 BP |
1608 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1609 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1610 | nfmti->set = flow_mod_table_id; |
1611 | return msg; | |
1612 | } | |
1613 | ||
0fb88c18 BP |
1614 | struct ofputil_flow_mod_flag { |
1615 | uint16_t raw_flag; | |
1616 | enum ofp_version min_version, max_version; | |
1617 | enum ofputil_flow_mod_flags flag; | |
1618 | }; | |
1619 | ||
1620 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1621 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1622 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1623 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1624 | OFPUTIL_FF_EMERG }, | |
1625 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1626 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1627 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1628 | { 0, 0, 0, 0 }, | |
1629 | }; | |
1630 | ||
1631 | static enum ofperr | |
1632 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1633 | enum ofp_flow_mod_command command, | |
1634 | enum ofp_version version, | |
1635 | enum ofputil_flow_mod_flags *flagsp) | |
1636 | { | |
1637 | uint16_t raw_flags = ntohs(raw_flags_); | |
1638 | const struct ofputil_flow_mod_flag *f; | |
1639 | ||
1640 | *flagsp = 0; | |
1641 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1642 | if (raw_flags & f->raw_flag | |
1643 | && version >= f->min_version | |
1644 | && (!f->max_version || version <= f->max_version)) { | |
1645 | raw_flags &= ~f->raw_flag; | |
1646 | *flagsp |= f->flag; | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1651 | * never do. | |
1652 | * | |
1653 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1654 | * resets counters. */ | |
1655 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1656 | && command == OFPFC_ADD) { | |
1657 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1658 | } | |
1659 | ||
1660 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1661 | } | |
1662 | ||
1663 | static ovs_be16 | |
1664 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1665 | enum ofp_version version) | |
1666 | { | |
1667 | const struct ofputil_flow_mod_flag *f; | |
1668 | uint16_t raw_flags; | |
1669 | ||
1670 | raw_flags = 0; | |
1671 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1672 | if (f->flag & flags | |
1673 | && version >= f->min_version | |
1674 | && (!f->max_version || version <= f->max_version)) { | |
1675 | raw_flags |= f->raw_flag; | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | return htons(raw_flags); | |
1680 | } | |
1681 | ||
7fa91113 BP |
1682 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1683 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1684 | * code. | |
1685 | * | |
f25d0cf3 BP |
1686 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1687 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1688 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1689 | * | |
1690 | * Does not validate the flow_mod actions. The caller should do that, with | |
1691 | * ofpacts_check(). */ | |
90bf1e07 | 1692 | enum ofperr |
a9a2da38 | 1693 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1694 | const struct ofp_header *oh, |
f25d0cf3 | 1695 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1696 | struct ofpbuf *ofpacts, |
1697 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1698 | { |
0fb88c18 BP |
1699 | ovs_be16 raw_flags; |
1700 | enum ofperr error; | |
2e4f5fcf | 1701 | struct ofpbuf b; |
982697a4 | 1702 | enum ofpraw raw; |
2e4f5fcf | 1703 | |
cc40d06b SH |
1704 | /* Ignored for non-delete actions */ |
1705 | fm->delete_reason = OFPRR_DELETE; | |
1706 | ||
2013493b | 1707 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1708 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1709 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1710 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1711 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1712 | |
bbc32a88 | 1713 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1714 | |
81a76618 | 1715 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1716 | if (error) { |
1717 | return error; | |
1c0b7503 BP |
1718 | } |
1719 | ||
2e4f5fcf | 1720 | /* Translate the message. */ |
81a76618 | 1721 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1722 | if (ofm->command == OFPFC_ADD |
1723 | || (oh->version == OFP11_VERSION | |
1724 | && (ofm->command == OFPFC_MODIFY || | |
1725 | ofm->command == OFPFC_MODIFY_STRICT) | |
1726 | && ofm->cookie_mask == htonll(0))) { | |
1727 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1728 | * not match on the cookie is treated as an "add" if there is no | |
1729 | * match. */ | |
aa319503 BP |
1730 | fm->cookie = htonll(0); |
1731 | fm->cookie_mask = htonll(0); | |
1732 | fm->new_cookie = ofm->cookie; | |
1733 | } else { | |
aa319503 BP |
1734 | fm->cookie = ofm->cookie; |
1735 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1736 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1737 | } |
23342857 | 1738 | fm->modify_cookie = false; |
aa319503 | 1739 | fm->command = ofm->command; |
0e197060 BP |
1740 | |
1741 | /* Get table ID. | |
1742 | * | |
083761ad SH |
1743 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1744 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1745 | fm->table_id = ofm->table_id; |
083761ad | 1746 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1747 | && (oh->version == OFP11_VERSION |
1748 | || (ofm->command != OFPFC_DELETE && | |
1749 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1750 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1751 | } | |
1752 | ||
2e4f5fcf BP |
1753 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1754 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1755 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1756 | fm->importance = ntohs(ofm->importance); | |
1757 | } else { | |
1758 | fm->importance = 0; | |
1759 | } | |
2e4f5fcf | 1760 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1761 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1762 | if (error) { |
1763 | return error; | |
1764 | } | |
7395c052 | 1765 | |
1fe4c0a0 BP |
1766 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1767 | ofm->command == OFPFC_DELETE_STRICT | |
1768 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1769 | : OFPG_ANY); |
0fb88c18 | 1770 | raw_flags = ofm->flags; |
aa319503 | 1771 | } else { |
0fb88c18 BP |
1772 | uint16_t command; |
1773 | ||
aa319503 BP |
1774 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1775 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1776 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1777 | |
1778 | /* Get the ofp10_flow_mod. */ | |
1779 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1780 | ||
aa319503 | 1781 | /* Translate the rule. */ |
81a76618 BP |
1782 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1783 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1784 | |
81a76618 BP |
1785 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1786 | * highest possible priority. */ | |
1787 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1788 | ? ntohs(ofm->priority) | |
1789 | : UINT16_MAX); | |
1790 | ||
aa319503 BP |
1791 | /* Translate the message. */ |
1792 | command = ntohs(ofm->command); | |
1793 | fm->cookie = htonll(0); | |
1794 | fm->cookie_mask = htonll(0); | |
1795 | fm->new_cookie = ofm->cookie; | |
1796 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1797 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1798 | fm->importance = 0; |
aa319503 | 1799 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1800 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1801 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1802 | raw_flags = ofm->flags; |
aa319503 BP |
1803 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1804 | /* Nicira extended flow_mod. */ | |
1805 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1806 | |
1807 | /* Dissect the message. */ | |
1808 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1809 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1810 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1811 | if (error) { |
1812 | return error; | |
1813 | } | |
aa319503 BP |
1814 | |
1815 | /* Translate the message. */ | |
1816 | command = ntohs(nfm->command); | |
1817 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1818 | /* Flow additions may only set a new cookie, not match an | |
1819 | * existing cookie. */ | |
1820 | return OFPERR_NXBRC_NXM_INVALID; | |
1821 | } | |
81a76618 | 1822 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1823 | fm->new_cookie = nfm->cookie; |
1824 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1825 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1826 | fm->importance = 0; |
aa319503 | 1827 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1828 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1829 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1830 | raw_flags = nfm->flags; |
aa319503 | 1831 | } else { |
428b2edd | 1832 | OVS_NOT_REACHED(); |
aa319503 BP |
1833 | } |
1834 | ||
b8266395 | 1835 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1836 | if (protocol & OFPUTIL_P_TID) { |
1837 | fm->command = command & 0xff; | |
1838 | fm->table_id = command >> 8; | |
1839 | } else { | |
1f42be1c JR |
1840 | if (command > 0xff) { |
1841 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1842 | "but flow_mod_table_id extension is not enabled"); | |
1843 | } | |
aa319503 BP |
1844 | fm->command = command; |
1845 | fm->table_id = 0xff; | |
e729e793 | 1846 | } |
2e4f5fcf BP |
1847 | } |
1848 | ||
1f42be1c JR |
1849 | if (fm->command > OFPFC_DELETE_STRICT) { |
1850 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1851 | } | |
1852 | ||
6fd6ed71 | 1853 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1854 | oh->version, ofpacts); |
1855 | if (error) { | |
1856 | return error; | |
1857 | } | |
6fd6ed71 PS |
1858 | fm->ofpacts = ofpacts->data; |
1859 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1860 | |
0fb88c18 BP |
1861 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1862 | oh->version, &fm->flags); | |
1863 | if (error) { | |
1864 | return error; | |
1865 | } | |
1866 | ||
1867 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1868 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1869 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1870 | * | |
1871 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1872 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1873 | * code, so just state that the flow table is full. */ | |
1874 | return (fm->hard_timeout || fm->idle_timeout | |
1875 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1876 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1877 | } | |
1878 | ||
ba2fe8e9 BP |
1879 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1880 | &fm->match.flow, max_port, | |
1881 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1882 | } |
1883 | ||
638a19b0 JR |
1884 | static enum ofperr |
1885 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1886 | struct ofpbuf *bands) | |
1887 | { | |
1888 | const struct ofp13_meter_band_header *ombh; | |
1889 | struct ofputil_meter_band *mb; | |
1890 | uint16_t n = 0; | |
1891 | ||
1892 | ombh = ofpbuf_try_pull(msg, len); | |
1893 | if (!ombh) { | |
1894 | return OFPERR_OFPBRC_BAD_LEN; | |
1895 | } | |
1896 | ||
1897 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1898 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1899 | /* All supported band types have the same length. */ |
638a19b0 JR |
1900 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1901 | return OFPERR_OFPBRC_BAD_LEN; | |
1902 | } | |
1903 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1904 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1905 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1906 | return OFPERR_OFPMMFC_BAD_BAND; | |
1907 | } | |
638a19b0 JR |
1908 | mb->rate = ntohl(ombh->rate); |
1909 | mb->burst_size = ntohl(ombh->burst_size); | |
1910 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1911 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1912 | n++; | |
1913 | len -= ombh_len; | |
db5a1019 AW |
1914 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1915 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1916 | } |
1917 | if (len) { | |
1918 | return OFPERR_OFPBRC_BAD_LEN; | |
1919 | } | |
1920 | *n_bands = n; | |
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | enum ofperr | |
1925 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1926 | struct ofputil_meter_mod *mm, | |
1927 | struct ofpbuf *bands) | |
1928 | { | |
1929 | const struct ofp13_meter_mod *omm; | |
1930 | struct ofpbuf b; | |
1931 | ||
1932 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1933 | ofpraw_pull_assert(&b); | |
1934 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1935 | ||
1936 | /* Translate the message. */ | |
1937 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1938 | if (mm->command != OFPMC13_ADD && |
1939 | mm->command != OFPMC13_MODIFY && | |
1940 | mm->command != OFPMC13_DELETE) { | |
1941 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1942 | } | |
638a19b0 JR |
1943 | mm->meter.meter_id = ntohl(omm->meter_id); |
1944 | ||
1945 | if (mm->command == OFPMC13_DELETE) { | |
1946 | mm->meter.flags = 0; | |
1947 | mm->meter.n_bands = 0; | |
1948 | mm->meter.bands = NULL; | |
1949 | } else { | |
1950 | enum ofperr error; | |
1951 | ||
1952 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1953 | if (mm->meter.flags & OFPMF13_KBPS && |
1954 | mm->meter.flags & OFPMF13_PKTPS) { | |
1955 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1956 | } | |
6fd6ed71 | 1957 | mm->meter.bands = bands->data; |
638a19b0 | 1958 | |
6fd6ed71 | 1959 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1960 | if (error) { |
1961 | return error; | |
1962 | } | |
1963 | } | |
1964 | return 0; | |
1965 | } | |
1966 | ||
1967 | void | |
1968 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1969 | { | |
1970 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1971 | *meter_id = ntohl(omr->meter_id); | |
1972 | } | |
1973 | ||
1974 | struct ofpbuf * | |
1975 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1976 | enum ofputil_meter_request_type type, | |
1977 | uint32_t meter_id) | |
1978 | { | |
1979 | struct ofpbuf *msg; | |
1980 | ||
1981 | enum ofpraw raw; | |
1982 | ||
1983 | switch (type) { | |
1984 | case OFPUTIL_METER_CONFIG: | |
1985 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1986 | break; | |
1987 | case OFPUTIL_METER_STATS: | |
1988 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1989 | break; | |
1990 | default: | |
1991 | case OFPUTIL_METER_FEATURES: | |
1992 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1993 | break; | |
1994 | } | |
1995 | ||
1996 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1997 | ||
1998 | if (type != OFPUTIL_METER_FEATURES) { | |
1999 | struct ofp13_meter_multipart_request *omr; | |
2000 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
2001 | omr->meter_id = htonl(meter_id); | |
2002 | } | |
2003 | return msg; | |
2004 | } | |
2005 | ||
2006 | static void | |
2007 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
2008 | struct ofpbuf *msg) | |
2009 | { | |
2010 | uint16_t n = 0; | |
2011 | ||
2012 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 2013 | /* Currently all band types have same size. */ |
638a19b0 JR |
2014 | struct ofp13_meter_band_dscp_remark *ombh; |
2015 | size_t ombh_len = sizeof *ombh; | |
2016 | ||
2017 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
2018 | ||
2019 | ombh->type = htons(mb->type); | |
2020 | ombh->len = htons(ombh_len); | |
2021 | ombh->rate = htonl(mb->rate); | |
2022 | ombh->burst_size = htonl(mb->burst_size); | |
2023 | ombh->prec_level = mb->prec_level; | |
2024 | ||
2025 | mb++; | |
2026 | } | |
2027 | } | |
2028 | ||
2029 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
2030 | void | |
ca6ba700 | 2031 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
2032 | const struct ofputil_meter_config *mc) |
2033 | { | |
2034 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 2035 | size_t start_ofs = msg->size; |
6a5490c6 | 2036 | struct ofp13_meter_config *reply; |
638a19b0 | 2037 | |
6a5490c6 | 2038 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
2039 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
2040 | ||
32756a57 | 2041 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
2042 | reply->flags = htons(mc->flags); |
2043 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 2044 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
2045 | |
2046 | ofpmp_postappend(replies, start_ofs); | |
2047 | } | |
2048 | ||
2049 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
2050 | void | |
ca6ba700 | 2051 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
2052 | const struct ofputil_meter_stats *ms) |
2053 | { | |
2054 | struct ofp13_meter_stats *reply; | |
2055 | uint16_t n = 0; | |
2056 | uint16_t len; | |
2057 | ||
2058 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
2059 | reply = ofpmp_append(replies, len); | |
2060 | ||
2061 | reply->meter_id = htonl(ms->meter_id); | |
2062 | reply->len = htons(len); | |
2063 | memset(reply->pad, 0, sizeof reply->pad); | |
2064 | reply->flow_count = htonl(ms->flow_count); | |
2065 | reply->packet_in_count = htonll(ms->packet_in_count); | |
2066 | reply->byte_in_count = htonll(ms->byte_in_count); | |
2067 | reply->duration_sec = htonl(ms->duration_sec); | |
2068 | reply->duration_nsec = htonl(ms->duration_nsec); | |
2069 | ||
2070 | for (n = 0; n < ms->n_bands; ++n) { | |
2071 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
2072 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
2073 | ||
2074 | dst->packet_band_count = htonll(src->packet_count); | |
2075 | dst->byte_band_count = htonll(src->byte_count); | |
2076 | } | |
2077 | } | |
2078 | ||
2079 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
2080 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
2081 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
2082 | * it across the call. | |
2083 | * | |
2084 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
2085 | * message. Calling this function multiple times for a single 'msg' iterates | |
2086 | * through the replies. 'bands' is cleared for each reply. | |
2087 | * | |
2088 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2089 | * otherwise a positive errno value. */ | |
2090 | int | |
2091 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2092 | struct ofputil_meter_config *mc, | |
2093 | struct ofpbuf *bands) | |
2094 | { | |
2095 | const struct ofp13_meter_config *omc; | |
2096 | enum ofperr err; | |
2097 | ||
2098 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2099 | if (!msg->header) { |
638a19b0 JR |
2100 | ofpraw_pull_assert(msg); |
2101 | } | |
2102 | ||
6fd6ed71 | 2103 | if (!msg->size) { |
638a19b0 JR |
2104 | return EOF; |
2105 | } | |
2106 | ||
2107 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2108 | if (!omc) { | |
0445637d | 2109 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2110 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2111 | msg->size); |
638a19b0 JR |
2112 | return OFPERR_OFPBRC_BAD_LEN; |
2113 | } | |
2114 | ||
2115 | ofpbuf_clear(bands); | |
2116 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2117 | &mc->n_bands, bands); | |
2118 | if (err) { | |
2119 | return err; | |
2120 | } | |
2121 | mc->meter_id = ntohl(omc->meter_id); | |
2122 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2123 | mc->bands = bands->data; |
638a19b0 JR |
2124 | |
2125 | return 0; | |
2126 | } | |
2127 | ||
2128 | static enum ofperr | |
2129 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2130 | struct ofpbuf *bands) | |
2131 | { | |
2132 | const struct ofp13_meter_band_stats *ombs; | |
2133 | struct ofputil_meter_band_stats *mbs; | |
2134 | uint16_t n, i; | |
2135 | ||
0445637d JR |
2136 | ombs = ofpbuf_try_pull(msg, len); |
2137 | if (!ombs) { | |
2138 | return OFPERR_OFPBRC_BAD_LEN; | |
2139 | } | |
2140 | ||
638a19b0 JR |
2141 | n = len / sizeof *ombs; |
2142 | if (len != n * sizeof *ombs) { | |
2143 | return OFPERR_OFPBRC_BAD_LEN; | |
2144 | } | |
2145 | ||
638a19b0 JR |
2146 | mbs = ofpbuf_put_uninit(bands, len); |
2147 | ||
2148 | for (i = 0; i < n; ++i) { | |
2149 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2150 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2151 | } | |
2152 | *n_bands = n; | |
2153 | return 0; | |
2154 | } | |
2155 | ||
2156 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2157 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2158 | * decoded into 'bands'. | |
2159 | * | |
2160 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2161 | * message. Calling this function multiple times for a single 'msg' iterates | |
2162 | * through the replies. 'bands' is cleared for each reply. | |
2163 | * | |
2164 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2165 | * otherwise a positive errno value. */ | |
2166 | int | |
2167 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2168 | struct ofputil_meter_stats *ms, | |
2169 | struct ofpbuf *bands) | |
2170 | { | |
2171 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2172 | enum ofperr err; |
2173 | ||
2174 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2175 | if (!msg->header) { |
638a19b0 JR |
2176 | ofpraw_pull_assert(msg); |
2177 | } | |
2178 | ||
6fd6ed71 | 2179 | if (!msg->size) { |
638a19b0 JR |
2180 | return EOF; |
2181 | } | |
2182 | ||
2183 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2184 | if (!oms) { | |
0445637d | 2185 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2186 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2187 | msg->size); |
638a19b0 JR |
2188 | return OFPERR_OFPBRC_BAD_LEN; |
2189 | } | |
638a19b0 JR |
2190 | |
2191 | ofpbuf_clear(bands); | |
0445637d JR |
2192 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2193 | &ms->n_bands, bands); | |
638a19b0 JR |
2194 | if (err) { |
2195 | return err; | |
2196 | } | |
2197 | ms->meter_id = ntohl(oms->meter_id); | |
2198 | ms->flow_count = ntohl(oms->flow_count); | |
2199 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2200 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2201 | ms->duration_sec = ntohl(oms->duration_sec); | |
2202 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2203 | ms->bands = bands->data; |
638a19b0 JR |
2204 | |
2205 | return 0; | |
2206 | } | |
2207 | ||
2208 | void | |
2209 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2210 | struct ofputil_meter_features *mf) | |
2211 | { | |
2212 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2213 | ||
2214 | mf->max_meters = ntohl(omf->max_meter); | |
2215 | mf->band_types = ntohl(omf->band_types); | |
2216 | mf->capabilities = ntohl(omf->capabilities); | |
2217 | mf->max_bands = omf->max_bands; | |
2218 | mf->max_color = omf->max_color; | |
2219 | } | |
2220 | ||
2221 | struct ofpbuf * | |
2222 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2223 | const struct ofp_header *request) | |
2224 | { | |
2225 | struct ofpbuf *reply; | |
2226 | struct ofp13_meter_features *omf; | |
2227 | ||
2228 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2229 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2230 | ||
2231 | omf->max_meter = htonl(mf->max_meters); | |
2232 | omf->band_types = htonl(mf->band_types); | |
2233 | omf->capabilities = htonl(mf->capabilities); | |
2234 | omf->max_bands = mf->max_bands; | |
2235 | omf->max_color = mf->max_color; | |
2236 | ||
2237 | return reply; | |
2238 | } | |
2239 | ||
2240 | struct ofpbuf * | |
2241 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2242 | const struct ofputil_meter_mod *mm) | |
2243 | { | |
2244 | struct ofpbuf *msg; | |
2245 | ||
2246 | struct ofp13_meter_mod *omm; | |
2247 | ||
2248 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2249 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2250 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2251 | omm->command = htons(mm->command); | |
2252 | if (mm->command != OFPMC13_DELETE) { | |
2253 | omm->flags = htons(mm->meter.flags); | |
2254 | } | |
2255 | omm->meter_id = htonl(mm->meter.meter_id); | |
2256 | ||
2257 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2258 | ||
2259 | ofpmsg_update_length(msg); | |
2260 | return msg; | |
2261 | } | |
2262 | ||
aa6305ea SH |
2263 | static ovs_be16 |
2264 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2265 | enum ofputil_protocol protocol) | |
2266 | { | |
2267 | return htons(protocol & OFPUTIL_P_TID | |
2268 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2269 | : fm->command); | |
2270 | } | |
2271 | ||
2e4f5fcf | 2272 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2273 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2274 | struct ofpbuf * |
a9a2da38 | 2275 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2276 | enum ofputil_protocol protocol) |
2e4f5fcf | 2277 | { |
0fb88c18 BP |
2278 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2279 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2280 | struct ofpbuf *msg; |
2281 | ||
27527aa0 | 2282 | switch (protocol) { |
75fa58f8 | 2283 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2284 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2285 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2286 | case OFPUTIL_P_OF14_OXM: |
2287 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2288 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2289 | int tailroom; |
aa6305ea | 2290 | |
75fa58f8 | 2291 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2292 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2293 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2294 | if ((protocol == OFPUTIL_P_OF11_STD |
2295 | && (fm->command == OFPFC_MODIFY || | |
2296 | fm->command == OFPFC_MODIFY_STRICT) | |
2297 | && fm->cookie_mask == htonll(0)) | |
2298 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2299 | ofm->cookie = fm->new_cookie; |
2300 | } else { | |
ba5cc068 | 2301 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2302 | } |
aa6305ea | 2303 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2304 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2305 | || (protocol != OFPUTIL_P_OF11_STD |
2306 | && (fm->command == OFPFC_DELETE || | |
2307 | fm->command == OFPFC_DELETE_STRICT))) { | |
2308 | ofm->table_id = fm->table_id; | |
2309 | } else { | |
2310 | ofm->table_id = 0; | |
2311 | } | |
aa6305ea SH |
2312 | ofm->command = fm->command; |
2313 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2314 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2315 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2316 | ofm->buffer_id = htonl(fm->buffer_id); |
2317 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2318 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2319 | ofm->flags = raw_flags; |
ca26eb44 RB |
2320 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2321 | ofm->importance = htons(fm->importance); | |
2322 | } else { | |
2323 | ofm->importance = 0; | |
2324 | } | |
75fa58f8 | 2325 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2326 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2327 | version); | |
aa6305ea SH |
2328 | break; |
2329 | } | |
2330 | ||
85813857 BP |
2331 | case OFPUTIL_P_OF10_STD: |
2332 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2333 | struct ofp10_flow_mod *ofm; |
2334 | ||
982697a4 BP |
2335 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2336 | fm->ofpacts_len); | |
2337 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2338 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2339 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2340 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2341 | ofm->idle_timeout = htons(fm->idle_timeout); |
2342 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2343 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2344 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2345 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2346 | ofm->flags = raw_flags; |
e3f8f887 JR |
2347 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2348 | version); | |
27527aa0 | 2349 | break; |
3f192f23 | 2350 | } |
2e4f5fcf | 2351 | |
85813857 BP |
2352 | case OFPUTIL_P_OF10_NXM: |
2353 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2354 | struct nx_flow_mod *nfm; |
2355 | int match_len; | |
2356 | ||
982697a4 BP |
2357 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2358 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2359 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2360 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2361 | nfm->cookie = fm->new_cookie; |
81a76618 | 2362 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2363 | nfm = msg->msg; |
2e4f5fcf BP |
2364 | nfm->idle_timeout = htons(fm->idle_timeout); |
2365 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2366 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2367 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2368 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2369 | nfm->flags = raw_flags; |
2e4f5fcf | 2370 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2371 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2372 | version); | |
27527aa0 | 2373 | break; |
3f192f23 | 2374 | } |
27527aa0 BP |
2375 | |
2376 | default: | |
428b2edd | 2377 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2378 | } |
2379 | ||
982697a4 | 2380 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2381 | return msg; |
2382 | } | |
2383 | ||
90bf1e07 | 2384 | static enum ofperr |
0157ad3a SH |
2385 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2386 | const struct ofp10_flow_stats_request *ofsr, | |
2387 | bool aggregate) | |
2e4f5fcf | 2388 | { |
2e4f5fcf | 2389 | fsr->aggregate = aggregate; |
81a76618 | 2390 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2391 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2392 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2393 | fsr->table_id = ofsr->table_id; |
e729e793 | 2394 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2395 | |
2396 | return 0; | |
2397 | } | |
2398 | ||
0157ad3a SH |
2399 | static enum ofperr |
2400 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2401 | struct ofpbuf *b, bool aggregate) | |
2402 | { | |
2403 | const struct ofp11_flow_stats_request *ofsr; | |
2404 | enum ofperr error; | |
2405 | ||
2406 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2407 | fsr->aggregate = aggregate; | |
2408 | fsr->table_id = ofsr->table_id; | |
2409 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2410 | if (error) { | |
2411 | return error; | |
2412 | } | |
7395c052 | 2413 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2414 | fsr->cookie = ofsr->cookie; |
2415 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2416 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2417 | if (error) { |
2418 | return error; | |
2419 | } | |
2420 | ||
2421 | return 0; | |
2422 | } | |
2423 | ||
90bf1e07 | 2424 | static enum ofperr |
81d1ea94 | 2425 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2426 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2427 | { |
2428 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2429 | enum ofperr error; |
2e4f5fcf | 2430 | |
982697a4 | 2431 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2432 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2433 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2434 | if (error) { |
2435 | return error; | |
2436 | } | |
6fd6ed71 | 2437 | if (b->size) { |
90bf1e07 | 2438 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2439 | } |
2440 | ||
2441 | fsr->aggregate = aggregate; | |
4e022ec0 | 2442 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2443 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2444 | fsr->table_id = nfsr->table_id; |
2445 | ||
2446 | return 0; | |
2447 | } | |
2448 | ||
e8f9a7bb VG |
2449 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2450 | * 'port', suitable for OpenFlow version 'version'. */ | |
2451 | struct ofpbuf * | |
2452 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2453 | ofp_port_t port) | |
2454 | { | |
2455 | struct ofpbuf *request; | |
2456 | ||
2457 | if (version == OFP10_VERSION) { | |
2458 | struct ofp10_queue_get_config_request *qgcr10; | |
2459 | ||
2460 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2461 | version, 0); | |
2462 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2463 | qgcr10->port = htons(ofp_to_u16(port)); | |
2464 | } else { | |
2465 | struct ofp11_queue_get_config_request *qgcr11; | |
2466 | ||
2467 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2468 | version, 0); | |
2469 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2470 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2471 | } | |
2472 | ||
2473 | return request; | |
2474 | } | |
2475 | ||
2476 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2477 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2478 | * code. */ | |
2479 | enum ofperr | |
2480 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2481 | ofp_port_t *port) | |
2482 | { | |
2483 | const struct ofp10_queue_get_config_request *qgcr10; | |
2484 | const struct ofp11_queue_get_config_request *qgcr11; | |
2485 | enum ofpraw raw; | |
2486 | struct ofpbuf b; | |
2487 | ||
2488 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2489 | raw = ofpraw_pull_assert(&b); | |
2490 | ||
2491 | switch ((int) raw) { | |
2492 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2493 | qgcr10 = b.data; |
e8f9a7bb | 2494 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
56085be5 | 2495 | break; |
e8f9a7bb VG |
2496 | |
2497 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2498 | qgcr11 = b.data; |
56085be5 BP |
2499 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2500 | if (error || *port == OFPP_ANY) { | |
2501 | return error; | |
2502 | } | |
2503 | break; | |
2504 | ||
2505 | default: | |
2506 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2507 | } |
2508 | ||
56085be5 BP |
2509 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2510 | ? 0 | |
2511 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2512 | } |
2513 | ||
2514 | /* Constructs and returns the beginning of a reply to | |
2515 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2516 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2517 | struct ofpbuf * | |
2518 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2519 | { | |
2520 | struct ofp10_queue_get_config_reply *qgcr10; | |
2521 | struct ofp11_queue_get_config_reply *qgcr11; | |
2522 | struct ofpbuf *reply; | |
2523 | enum ofperr error; | |
2524 | struct ofpbuf b; | |
2525 | enum ofpraw raw; | |
2526 | ofp_port_t port; | |
2527 | ||
2528 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2529 | ovs_assert(!error); | |
2530 | ||
2531 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2532 | raw = ofpraw_pull_assert(&b); | |
2533 | ||
2534 | switch ((int) raw) { | |
2535 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2536 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2537 | oh, 0); | |
2538 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2539 | qgcr10->port = htons(ofp_to_u16(port)); | |
2540 | break; | |
2541 | ||
2542 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2543 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2544 | oh, 0); | |
2545 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2546 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2547 | break; | |
2548 | ||
2549 | default: | |
428b2edd | 2550 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2551 | } |
2552 | ||
2553 | return reply; | |
2554 | } | |
2555 | ||
2556 | static void | |
2557 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2558 | uint16_t rate) | |
2559 | { | |
2560 | if (rate != UINT16_MAX) { | |
2561 | struct ofp_queue_prop_rate *oqpr; | |
2562 | ||
2563 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2564 | oqpr->prop_header.property = htons(property); | |
2565 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2566 | oqpr->rate = htons(rate); | |
2567 | } | |
2568 | } | |
2569 | ||
2570 | /* Appends a queue description for 'queue_id' to the | |
2571 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2572 | void | |
2573 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2574 | const struct ofputil_queue_config *oqc) | |
2575 | { | |
6fd6ed71 | 2576 | const struct ofp_header *oh = reply->data; |
e8f9a7bb VG |
2577 | size_t start_ofs, len_ofs; |
2578 | ovs_be16 *len; | |
2579 | ||
6fd6ed71 | 2580 | start_ofs = reply->size; |
e8f9a7bb VG |
2581 | if (oh->version < OFP12_VERSION) { |
2582 | struct ofp10_packet_queue *opq10; | |
2583 | ||
2584 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2585 | opq10->queue_id = htonl(oqc->queue_id); | |
6fd6ed71 | 2586 | len_ofs = (char *) &opq10->len - (char *) reply->data; |
e8f9a7bb | 2587 | } else { |
e8f9a7bb | 2588 | struct ofp12_packet_queue *opq12; |
e8f9a7bb VG |
2589 | |
2590 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
56085be5 | 2591 | opq12->port = ofputil_port_to_ofp11(oqc->port); |
e8f9a7bb | 2592 | opq12->queue_id = htonl(oqc->queue_id); |
6fd6ed71 | 2593 | len_ofs = (char *) &opq12->len - (char *) reply->data; |
e8f9a7bb VG |
2594 | } |
2595 | ||
2596 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2597 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2598 | ||
2599 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2600 | *len = htons(reply->size - start_ofs); |
e8f9a7bb VG |
2601 | } |
2602 | ||
2603 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2604 | * stores in '*port' the port that the reply is about. The caller may call | |
2605 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2606 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2607 | * ofperr.*/ | |
2608 | enum ofperr | |
2609 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2610 | { | |
2611 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2612 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2613 | enum ofpraw raw; | |
2614 | ||
2615 | raw = ofpraw_pull_assert(reply); | |
2616 | switch ((int) raw) { | |
2617 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2618 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2619 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2620 | return 0; | |
2621 | ||
2622 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2623 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2624 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2625 | } | |
2626 | ||
428b2edd | 2627 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2628 | } |
2629 | ||
2630 | static enum ofperr | |
2631 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2632 | { | |
2633 | const struct ofp_queue_prop_rate *oqpr; | |
2634 | ||
2635 | if (hdr->len == htons(sizeof *oqpr)) { | |
2636 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2637 | *rate = ntohs(oqpr->rate); | |
2638 | return 0; | |
2639 | } else { | |
2640 | return OFPERR_OFPBRC_BAD_LEN; | |
2641 | } | |
2642 | } | |
2643 | ||
2644 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2645 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2646 | * must already have pulled off the main header. | |
2647 | * | |
2648 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2649 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2650 | * problem decoding 'reply'. */ | |
2651 | int | |
2652 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2653 | struct ofputil_queue_config *queue) | |
2654 | { | |
2655 | const struct ofp_header *oh; | |
2656 | unsigned int opq_len; | |
2657 | unsigned int len; | |
2658 | ||
6fd6ed71 | 2659 | if (!reply->size) { |
e8f9a7bb VG |
2660 | return EOF; |
2661 | } | |
2662 | ||
2663 | queue->min_rate = UINT16_MAX; | |
2664 | queue->max_rate = UINT16_MAX; | |
2665 | ||
6fd6ed71 | 2666 | oh = reply->header; |
e8f9a7bb VG |
2667 | if (oh->version < OFP12_VERSION) { |
2668 | const struct ofp10_packet_queue *opq10; | |
2669 | ||
2670 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2671 | if (!opq10) { | |
2672 | return OFPERR_OFPBRC_BAD_LEN; | |
2673 | } | |
2674 | queue->queue_id = ntohl(opq10->queue_id); | |
2675 | len = ntohs(opq10->len); | |
2676 | opq_len = sizeof *opq10; | |
2677 | } else { | |
2678 | const struct ofp12_packet_queue *opq12; | |
2679 | ||
2680 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2681 | if (!opq12) { | |
2682 | return OFPERR_OFPBRC_BAD_LEN; | |
2683 | } | |
2684 | queue->queue_id = ntohl(opq12->queue_id); | |
2685 | len = ntohs(opq12->len); | |
2686 | opq_len = sizeof *opq12; | |
2687 | } | |
2688 | ||
6fd6ed71 | 2689 | if (len < opq_len || len > reply->size + opq_len || len % 8) { |
e8f9a7bb VG |
2690 | return OFPERR_OFPBRC_BAD_LEN; |
2691 | } | |
2692 | len -= opq_len; | |
2693 | ||
2694 | while (len > 0) { | |
2695 | const struct ofp_queue_prop_header *hdr; | |
2696 | unsigned int property; | |
2697 | unsigned int prop_len; | |
2698 | enum ofperr error = 0; | |
2699 | ||
2700 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2701 | prop_len = ntohs(hdr->len); | |
6fd6ed71 | 2702 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { |
e8f9a7bb VG |
2703 | return OFPERR_OFPBRC_BAD_LEN; |
2704 | } | |
2705 | ||
2706 | property = ntohs(hdr->property); | |
2707 | switch (property) { | |
2708 | case OFPQT_MIN_RATE: | |
2709 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2710 | break; | |
2711 | ||
2712 | case OFPQT_MAX_RATE: | |
2713 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2714 | break; | |
2715 | ||
2716 | default: | |
2717 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2718 | break; | |
2719 | } | |
2720 | if (error) { | |
2721 | return error; | |
2722 | } | |
2723 | ||
2724 | ofpbuf_pull(reply, prop_len); | |
2725 | len -= prop_len; | |
2726 | } | |
2727 | return 0; | |
2728 | } | |
2729 | ||
2e4f5fcf | 2730 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2731 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2732 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2733 | enum ofperr |
81d1ea94 | 2734 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2735 | const struct ofp_header *oh) |
2e4f5fcf | 2736 | { |
982697a4 | 2737 | enum ofpraw raw; |
2e4f5fcf | 2738 | struct ofpbuf b; |
2e4f5fcf | 2739 | |
2013493b | 2740 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2741 | raw = ofpraw_pull_assert(&b); |
2742 | switch ((int) raw) { | |
cfc23141 | 2743 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2744 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2745 | |
617da9cd | 2746 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2747 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2748 | |
2749 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2750 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2751 | |
617da9cd SH |
2752 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2753 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2754 | ||
982697a4 BP |
2755 | case OFPRAW_NXST_FLOW_REQUEST: |
2756 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2757 | |
982697a4 BP |
2758 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2759 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2760 | |
2761 | default: | |
2762 | /* Hey, the caller lied. */ | |
428b2edd | 2763 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2764 | } |
2765 | } | |
2766 | ||
2767 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2768 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2769 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2770 | struct ofpbuf * |
81d1ea94 | 2771 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2772 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2773 | { |
2774 | struct ofpbuf *msg; | |
982697a4 | 2775 | enum ofpraw raw; |
2e4f5fcf | 2776 | |
27527aa0 | 2777 | switch (protocol) { |
75fa58f8 | 2778 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2779 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2780 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2781 | case OFPUTIL_P_OF14_OXM: |
2782 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2783 | struct ofp11_flow_stats_request *ofsr; |
2784 | ||
2785 | raw = (fsr->aggregate | |
617da9cd | 2786 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2787 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2788 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2789 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2790 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2791 | ofsr->table_id = fsr->table_id; | |
2792 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2793 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2794 | ofsr->cookie = fsr->cookie; |
2795 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2796 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2797 | break; |
2798 | } | |
2799 | ||
85813857 BP |
2800 | case OFPUTIL_P_OF10_STD: |
2801 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2802 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2803 | |
982697a4 | 2804 | raw = (fsr->aggregate |
617da9cd | 2805 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2806 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2807 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2808 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2809 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2810 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2811 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2812 | break; |
2813 | } | |
2814 | ||
85813857 BP |
2815 | case OFPUTIL_P_OF10_NXM: |
2816 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2817 | struct nx_flow_stats_request *nfsr; |
2818 | int match_len; | |
2819 | ||
982697a4 BP |
2820 | raw = (fsr->aggregate |
2821 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2822 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2823 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2824 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2825 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2826 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2827 | |
6fd6ed71 | 2828 | nfsr = msg->msg; |
4e022ec0 | 2829 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2830 | nfsr->match_len = htons(match_len); |
2831 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2832 | break; |
2833 | } | |
2834 | ||
2835 | default: | |
428b2edd | 2836 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2837 | } |
2838 | ||
2839 | return msg; | |
2840 | } | |
d1e2cf21 | 2841 | |
4ffd1b43 | 2842 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2843 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2844 | * |
2845 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2846 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2847 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2848 | * pointers null and not modify them between calls. | |
2849 | * | |
f27f2134 BP |
2850 | * Most switches don't send the values needed to populate fs->idle_age and |
2851 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2852 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2853 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2854 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2855 | * | |
f25d0cf3 BP |
2856 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2857 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2858 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2859 | * | |
4ffd1b43 BP |
2860 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2861 | * otherwise a positive errno value. */ | |
2862 | int | |
2863 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2864 | struct ofpbuf *msg, |
f25d0cf3 BP |
2865 | bool flow_age_extension, |
2866 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2867 | { |
0fb88c18 | 2868 | const struct ofp_header *oh; |
8f2cded4 | 2869 | size_t instructions_len; |
982697a4 BP |
2870 | enum ofperr error; |
2871 | enum ofpraw raw; | |
4ffd1b43 | 2872 | |
6fd6ed71 | 2873 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2874 | : ofpraw_pull(&raw, msg)); |
2875 | if (error) { | |
2876 | return error; | |
4ffd1b43 | 2877 | } |
6fd6ed71 | 2878 | oh = msg->header; |
4ffd1b43 | 2879 | |
6fd6ed71 | 2880 | if (!msg->size) { |
4ffd1b43 | 2881 | return EOF; |
2e1ae200 JR |
2882 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2883 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2884 | const struct ofp11_flow_stats *ofs; |
2885 | size_t length; | |
2886 | uint16_t padded_match_len; | |
2887 | ||
2888 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2889 | if (!ofs) { | |
437d0d22 | 2890 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2891 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2892 | return EINVAL; |
2893 | } | |
2894 | ||
2895 | length = ntohs(ofs->length); | |
2896 | if (length < sizeof *ofs) { | |
2897 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2898 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2899 | return EINVAL; |
2900 | } | |
2901 | ||
81a76618 | 2902 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2903 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2904 | return EINVAL; | |
2905 | } | |
8f2cded4 | 2906 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2907 | |
81a76618 | 2908 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2909 | fs->table_id = ofs->table_id; |
2910 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2911 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2912 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2913 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2914 | if (oh->version >= OFP14_VERSION) { |
2915 | fs->importance = ntohs(ofs->importance); | |
2916 | } else { | |
2917 | fs->importance = 0; | |
2918 | } | |
0fb88c18 BP |
2919 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2920 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2921 | &fs->flags); | |
2922 | if (error) { | |
2923 | return error; | |
2924 | } | |
2925 | } else { | |
2926 | fs->flags = 0; | |
2927 | } | |
6ec5f0c5 SH |
2928 | fs->idle_age = -1; |
2929 | fs->hard_age = -1; | |
2930 | fs->cookie = ofs->cookie; | |
2931 | fs->packet_count = ntohll(ofs->packet_count); | |
2932 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2933 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2934 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2935 | size_t length; |
2936 | ||
2937 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2938 | if (!ofs) { | |
437d0d22 | 2939 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2940 | "bytes at end", msg->size); |
4ffd1b43 BP |
2941 | return EINVAL; |
2942 | } | |
2943 | ||
2944 | length = ntohs(ofs->length); | |
2945 | if (length < sizeof *ofs) { | |
2946 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2947 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2948 | return EINVAL; |
2949 | } | |
8f2cded4 | 2950 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2951 | |
2952 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2953 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2954 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2955 | fs->table_id = ofs->table_id; |
2956 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2957 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2958 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2959 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2960 | fs->importance = 0; |
f27f2134 BP |
2961 | fs->idle_age = -1; |
2962 | fs->hard_age = -1; | |
4ffd1b43 BP |
2963 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2964 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2965 | fs->flags = 0; |
982697a4 | 2966 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2967 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2968 | size_t match_len, length; |
4ffd1b43 BP |
2969 | |
2970 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2971 | if (!nfs) { | |
437d0d22 | 2972 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2973 | "bytes at end", msg->size); |
4ffd1b43 BP |
2974 | return EINVAL; |
2975 | } | |
2976 | ||
2977 | length = ntohs(nfs->length); | |
2978 | match_len = ntohs(nfs->match_len); | |
2979 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2980 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2981 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2982 | return EINVAL; |
2983 | } | |
81a76618 | 2984 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2985 | return EINVAL; |
2986 | } | |
8f2cded4 | 2987 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2988 | |
2989 | fs->cookie = nfs->cookie; | |
2990 | fs->table_id = nfs->table_id; | |
2991 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2992 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2993 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2994 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2995 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2996 | fs->importance = 0; |
f27f2134 BP |
2997 | fs->idle_age = -1; |
2998 | fs->hard_age = -1; | |
2999 | if (flow_age_extension) { | |
3000 | if (nfs->idle_age) { | |
3001 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
3002 | } | |
3003 | if (nfs->hard_age) { | |
3004 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
3005 | } | |
3006 | } | |
4ffd1b43 BP |
3007 | fs->packet_count = ntohll(nfs->packet_count); |
3008 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 3009 | fs->flags = 0; |
4ffd1b43 | 3010 | } else { |
428b2edd | 3011 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
3012 | } |
3013 | ||
8f2cded4 BP |
3014 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
3015 | ofpacts)) { | |
3016 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
3017 | return EINVAL; | |
3018 | } | |
6fd6ed71 PS |
3019 | fs->ofpacts = ofpacts->data; |
3020 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3021 | |
4ffd1b43 BP |
3022 | return 0; |
3023 | } | |
3024 | ||
5e9d0469 BP |
3025 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3026 | * | |
3027 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3028 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3029 | static uint64_t | |
3030 | unknown_to_zero(uint64_t count) | |
3031 | { | |
3032 | return count != UINT64_MAX ? count : 0; | |
3033 | } | |
3034 | ||
349adfb2 BP |
3035 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3036 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3037 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3038 | void |
3039 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 3040 | struct ovs_list *replies) |
349adfb2 | 3041 | { |
f25d0cf3 | 3042 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 3043 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3044 | enum ofp_version version = ofpmp_version(replies); |
3045 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3046 | |
2e1ae200 | 3047 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3048 | struct ofp11_flow_stats *ofs; |
3049 | ||
3050 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3051 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3052 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3053 | version); | |
22a86f18 SH |
3054 | |
3055 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3056 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3057 | ofs->table_id = fs->table_id; |
3058 | ofs->pad = 0; | |
3059 | ofs->duration_sec = htonl(fs->duration_sec); | |
3060 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3061 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3062 | ofs->idle_timeout = htons(fs->idle_timeout); |
3063 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3064 | if (version >= OFP14_VERSION) { |
3065 | ofs->importance = htons(fs->importance); | |
3066 | } else { | |
3067 | ofs->importance = 0; | |
3068 | } | |
0fb88c18 | 3069 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3070 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3071 | } else { |
3072 | ofs->flags = 0; | |
3073 | } | |
22a86f18 SH |
3074 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3075 | ofs->cookie = fs->cookie; | |
3076 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3077 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3078 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3079 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3080 | |
1a59dc2c | 3081 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3082 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3083 | version); | |
1a59dc2c | 3084 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3085 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3086 | ofs->table_id = fs->table_id; |
3087 | ofs->pad = 0; | |
81a76618 | 3088 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3089 | ofs->duration_sec = htonl(fs->duration_sec); |
3090 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3091 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3092 | ofs->idle_timeout = htons(fs->idle_timeout); |
3093 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3094 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3095 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3096 | put_32aligned_be64(&ofs->packet_count, |
3097 | htonll(unknown_to_zero(fs->packet_count))); | |
3098 | put_32aligned_be64(&ofs->byte_count, | |
3099 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3100 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3101 | struct nx_flow_stats *nfs; |
1a59dc2c | 3102 | int match_len; |
349adfb2 | 3103 | |
1a59dc2c | 3104 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3105 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3106 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3107 | version); | |
1a59dc2c | 3108 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3109 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3110 | nfs->table_id = fs->table_id; |
3111 | nfs->pad = 0; | |
3112 | nfs->duration_sec = htonl(fs->duration_sec); | |
3113 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3114 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3115 | nfs->idle_timeout = htons(fs->idle_timeout); |
3116 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3117 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3118 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3119 | : UINT16_MAX); | |
3120 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3121 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3122 | : UINT16_MAX); | |
1a59dc2c | 3123 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3124 | nfs->cookie = fs->cookie; |
3125 | nfs->packet_count = htonll(fs->packet_count); | |
3126 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3127 | } else { |
428b2edd | 3128 | OVS_NOT_REACHED(); |
349adfb2 | 3129 | } |
f25d0cf3 | 3130 | |
982697a4 | 3131 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3132 | } |
3133 | ||
76c93b22 | 3134 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3135 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3136 | struct ofpbuf * |
3137 | ofputil_encode_aggregate_stats_reply( | |
3138 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3139 | const struct ofp_header *request) |
76c93b22 | 3140 | { |
a814ba0f BP |
3141 | struct ofp_aggregate_stats_reply *asr; |
3142 | uint64_t packet_count; | |
3143 | uint64_t byte_count; | |
76c93b22 | 3144 | struct ofpbuf *msg; |
982697a4 | 3145 | enum ofpraw raw; |
76c93b22 | 3146 | |
982697a4 | 3147 | ofpraw_decode(&raw, request); |
617da9cd | 3148 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3149 | packet_count = unknown_to_zero(stats->packet_count); |
3150 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3151 | } else { |
a814ba0f BP |
3152 | packet_count = stats->packet_count; |
3153 | byte_count = stats->byte_count; | |
76c93b22 BP |
3154 | } |
3155 | ||
a814ba0f BP |
3156 | msg = ofpraw_alloc_stats_reply(request, 0); |
3157 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3158 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3159 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3160 | asr->flow_count = htonl(stats->flow_count); | |
3161 | ||
76c93b22 BP |
3162 | return msg; |
3163 | } | |
3164 | ||
982697a4 BP |
3165 | enum ofperr |
3166 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3167 | const struct ofp_header *reply) | |
3168 | { | |
a814ba0f | 3169 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3170 | struct ofpbuf msg; |
982697a4 BP |
3171 | |
3172 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3173 | ofpraw_pull_assert(&msg); |
3174 | ||
6fd6ed71 | 3175 | asr = msg.msg; |
a814ba0f BP |
3176 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3177 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3178 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3179 | |
3180 | return 0; | |
3181 | } | |
3182 | ||
b78f6b77 BP |
3183 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3184 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3185 | * an OpenFlow error code. */ | |
90bf1e07 | 3186 | enum ofperr |
9b045a0c | 3187 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3188 | const struct ofp_header *oh) |
9b045a0c | 3189 | { |
982697a4 BP |
3190 | enum ofpraw raw; |
3191 | struct ofpbuf b; | |
9b045a0c | 3192 | |
982697a4 BP |
3193 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3194 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3195 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3196 | const struct ofp12_flow_removed *ofr; | |
3197 | enum ofperr error; | |
3198 | ||
3199 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3200 | ||
81a76618 | 3201 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3202 | if (error) { |
3203 | return error; | |
3204 | } | |
3205 | ||
81a76618 | 3206 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3207 | fr->cookie = ofr->cookie; |
3208 | fr->reason = ofr->reason; | |
95216219 | 3209 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3210 | fr->duration_sec = ntohl(ofr->duration_sec); |
3211 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3212 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3213 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3214 | fr->packet_count = ntohll(ofr->packet_count); | |
3215 | fr->byte_count = ntohll(ofr->byte_count); | |
3216 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3217 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3218 | |
982697a4 BP |
3219 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3220 | ||
81a76618 BP |
3221 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3222 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3223 | fr->cookie = ofr->cookie; |
3224 | fr->reason = ofr->reason; | |
95216219 | 3225 | fr->table_id = 255; |
9b045a0c BP |
3226 | fr->duration_sec = ntohl(ofr->duration_sec); |
3227 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3228 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3229 | fr->hard_timeout = 0; |
9b045a0c BP |
3230 | fr->packet_count = ntohll(ofr->packet_count); |
3231 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3232 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3233 | struct nx_flow_removed *nfr; |
c2725b60 | 3234 | enum ofperr error; |
9b045a0c | 3235 | |
9b045a0c | 3236 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3237 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3238 | NULL, NULL); | |
9b045a0c BP |
3239 | if (error) { |
3240 | return error; | |
3241 | } | |
6fd6ed71 | 3242 | if (b.size) { |
90bf1e07 | 3243 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3244 | } |
3245 | ||
81a76618 | 3246 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3247 | fr->cookie = nfr->cookie; |
3248 | fr->reason = nfr->reason; | |
745bfd5e | 3249 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3250 | fr->duration_sec = ntohl(nfr->duration_sec); |
3251 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3252 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3253 | fr->hard_timeout = 0; |
9b045a0c BP |
3254 | fr->packet_count = ntohll(nfr->packet_count); |
3255 | fr->byte_count = ntohll(nfr->byte_count); | |
3256 | } else { | |
428b2edd | 3257 | OVS_NOT_REACHED(); |
9b045a0c BP |
3258 | } |
3259 | ||
3260 | return 0; | |
3261 | } | |
3262 | ||
588cd7b5 | 3263 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3264 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3265 | * message. */ |
3266 | struct ofpbuf * | |
3267 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3268 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3269 | { |
3270 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3271 | enum ofp_flow_removed_reason reason = fr->reason; |
3272 | ||
3273 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3274 | reason = OFPRR_DELETE; | |
3275 | } | |
588cd7b5 | 3276 | |
27527aa0 | 3277 | switch (protocol) { |
75fa58f8 | 3278 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3279 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3280 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3281 | case OFPUTIL_P_OF14_OXM: |
3282 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3283 | struct ofp12_flow_removed *ofr; |
3284 | ||
3285 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3286 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3287 | htonl(0), |
3288 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3289 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3290 | ofr->cookie = fr->cookie; | |
81a76618 | 3291 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3292 | ofr->reason = reason; |
95216219 | 3293 | ofr->table_id = fr->table_id; |
83974732 SH |
3294 | ofr->duration_sec = htonl(fr->duration_sec); |
3295 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3296 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3297 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3298 | ofr->packet_count = htonll(fr->packet_count); |
3299 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3300 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3301 | break; |
3302 | } | |
3303 | ||
85813857 BP |
3304 | case OFPUTIL_P_OF10_STD: |
3305 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3306 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3307 | |
982697a4 BP |
3308 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3309 | htonl(0), 0); | |
3310 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3311 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3312 | ofr->cookie = fr->cookie; |
81a76618 | 3313 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3314 | ofr->reason = reason; |
588cd7b5 BP |
3315 | ofr->duration_sec = htonl(fr->duration_sec); |
3316 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3317 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3318 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3319 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3320 | break; |
3321 | } | |
3322 | ||
85813857 BP |
3323 | case OFPUTIL_P_OF10_NXM: |
3324 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3325 | struct nx_flow_removed *nfr; |
3326 | int match_len; | |
3327 | ||
982697a4 BP |
3328 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3329 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3330 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3331 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3332 | |
6fd6ed71 | 3333 | nfr = msg->msg; |
588cd7b5 | 3334 | nfr->cookie = fr->cookie; |
81a76618 | 3335 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3336 | nfr->reason = reason; |
745bfd5e | 3337 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3338 | nfr->duration_sec = htonl(fr->duration_sec); |
3339 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3340 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3341 | nfr->match_len = htons(match_len); | |
3342 | nfr->packet_count = htonll(fr->packet_count); | |
3343 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3344 | break; |
3345 | } | |
3346 | ||
3347 | default: | |
428b2edd | 3348 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3349 | } |
3350 | ||
3351 | return msg; | |
3352 | } | |
3353 | ||
f7cc6bd8 | 3354 | enum ofperr |
65120a8a EJ |
3355 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3356 | const struct ofp_header *oh) | |
3357 | { | |
982697a4 BP |
3358 | enum ofpraw raw; |
3359 | struct ofpbuf b; | |
65120a8a | 3360 | |
65120a8a | 3361 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3362 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3363 | |
982697a4 BP |
3364 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3365 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3366 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3367 | const struct ofp13_packet_in *opi; | |
7cfb9651 | 3368 | int error; |
2e1ae200 JR |
3369 | size_t packet_in_size; |
3370 | ||
3371 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3372 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3373 | } else { | |
3374 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3375 | } | |
7cfb9651 | 3376 | |
2e1ae200 | 3377 | opi = ofpbuf_pull(&b, packet_in_size); |
50dcbd8e | 3378 | error = oxm_pull_match_loose(&b, &pin->flow_metadata); |
7cfb9651 SH |
3379 | if (error) { |
3380 | return error; | |
3381 | } | |
3382 | ||
3383 | if (!ofpbuf_try_pull(&b, 2)) { | |
3384 | return OFPERR_OFPBRC_BAD_LEN; | |
3385 | } | |
3386 | ||
2e1ae200 JR |
3387 | pin->reason = opi->pi.reason; |
3388 | pin->table_id = opi->pi.table_id; | |
3389 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3390 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3391 | |
2e1ae200 JR |
3392 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3393 | pin->cookie = opi->cookie; | |
3394 | } | |
7cfb9651 | 3395 | |
50dcbd8e JG |
3396 | pin->packet = b.data; |
3397 | pin->packet_len = b.size; | |
7cfb9651 | 3398 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3399 | const struct ofp10_packet_in *opi; |
982697a4 | 3400 | |
31a9e63f | 3401 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3402 | |
3403 | pin->packet = opi->data; | |
6fd6ed71 | 3404 | pin->packet_len = b.size; |
65120a8a | 3405 | |
50dcbd8e JG |
3406 | match_init_catchall(&pin->flow_metadata); |
3407 | match_set_in_port(&pin->flow_metadata, u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a EJ |
3408 | pin->reason = opi->reason; |
3409 | pin->buffer_id = ntohl(opi->buffer_id); | |
3410 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3411 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3412 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3413 | ofp_port_t in_port; |
4d197ebb BP |
3414 | enum ofperr error; |
3415 | ||
3416 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3417 | ||
6fd6ed71 PS |
3418 | pin->packet = b.data; |
3419 | pin->packet_len = b.size; | |
4d197ebb BP |
3420 | |
3421 | pin->buffer_id = ntohl(opi->buffer_id); | |
50dcbd8e | 3422 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3423 | if (error) { |
3424 | return error; | |
3425 | } | |
50dcbd8e JG |
3426 | match_init_catchall(&pin->flow_metadata); |
3427 | match_set_in_port(&pin->flow_metadata, in_port); | |
4d197ebb BP |
3428 | pin->total_len = ntohs(opi->total_len); |
3429 | pin->reason = opi->reason; | |
3430 | pin->table_id = opi->table_id; | |
982697a4 | 3431 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3432 | const struct nx_packet_in *npi; |
54834960 EJ |
3433 | int error; |
3434 | ||
54834960 | 3435 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3436 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3437 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3438 | if (error) { |
3439 | return error; | |
3440 | } | |
3441 | ||
3442 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3443 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3444 | } |
3445 | ||
54834960 EJ |
3446 | pin->reason = npi->reason; |
3447 | pin->table_id = npi->table_id; | |
3448 | pin->cookie = npi->cookie; | |
3449 | ||
54834960 EJ |
3450 | pin->buffer_id = ntohl(npi->buffer_id); |
3451 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3452 | |
50dcbd8e JG |
3453 | pin->packet = b.data; |
3454 | pin->packet_len = b.size; | |
65120a8a | 3455 | } else { |
428b2edd | 3456 | OVS_NOT_REACHED(); |
65120a8a EJ |
3457 | } |
3458 | ||
3459 | return 0; | |
3460 | } | |
3461 | ||
0f83fea0 BP |
3462 | static struct ofpbuf * |
3463 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3464 | { | |
3465 | struct ofp10_packet_in *opi; | |
3466 | struct ofpbuf *packet; | |
3467 | ||
3468 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3469 | htonl(0), pin->packet_len); | |
3470 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3471 | opi->total_len = htons(pin->total_len); | |
50dcbd8e | 3472 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
0f83fea0 BP |
3473 | opi->reason = pin->reason; |
3474 | opi->buffer_id = htonl(pin->buffer_id); | |
3475 | ||
3476 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3477 | ||
3478 | return packet; | |
3479 | } | |
3480 | ||
3481 | static struct ofpbuf * | |
3482 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3483 | { | |
3484 | struct nx_packet_in *npi; | |
3485 | struct ofpbuf *packet; | |
0f83fea0 BP |
3486 | size_t match_len; |
3487 | ||
0f83fea0 BP |
3488 | /* The final argument is just an estimate of the space required. */ |
3489 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
50dcbd8e | 3490 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3491 | ofpbuf_put_zeros(packet, sizeof *npi); |
50dcbd8e | 3492 | match_len = nx_put_match(packet, &pin->flow_metadata, 0, 0); |
0f83fea0 BP |
3493 | ofpbuf_put_zeros(packet, 2); |
3494 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3495 | ||
6fd6ed71 | 3496 | npi = packet->msg; |
0f83fea0 BP |
3497 | npi->buffer_id = htonl(pin->buffer_id); |
3498 | npi->total_len = htons(pin->total_len); | |
3499 | npi->reason = pin->reason; | |
3500 | npi->table_id = pin->table_id; | |
3501 | npi->cookie = pin->cookie; | |
3502 | npi->match_len = htons(match_len); | |
3503 | ||
3504 | return packet; | |
3505 | } | |
3506 | ||
4d197ebb BP |
3507 | static struct ofpbuf * |
3508 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3509 | { | |
3510 | struct ofp11_packet_in *opi; | |
3511 | struct ofpbuf *packet; | |
3512 | ||
3513 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3514 | htonl(0), pin->packet_len); | |
3515 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3516 | opi->buffer_id = htonl(pin->buffer_id); | |
50dcbd8e | 3517 | opi->in_port = ofputil_port_to_ofp11(pin->flow_metadata.flow.in_port.ofp_port); |
4d197ebb BP |
3518 | opi->in_phy_port = opi->in_port; |
3519 | opi->total_len = htons(pin->total_len); | |
3520 | opi->reason = pin->reason; | |
3521 | opi->table_id = pin->table_id; | |
3522 | ||
3523 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3524 | ||
3525 | return packet; | |
3526 | } | |
3527 | ||
0f83fea0 BP |
3528 | static struct ofpbuf * |
3529 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3530 | enum ofputil_protocol protocol) | |
3531 | { | |
3532 | struct ofp13_packet_in *opi; | |
0f83fea0 BP |
3533 | enum ofpraw packet_in_raw; |
3534 | enum ofp_version packet_in_version; | |
3535 | size_t packet_in_size; | |
3536 | struct ofpbuf *packet; | |
3537 | ||
3538 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3539 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3540 | packet_in_version = OFP12_VERSION; | |
3541 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3542 | } else { | |
3543 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
b6a3dd9c | 3544 | packet_in_version = ofputil_protocol_to_ofp_version(protocol); |
0f83fea0 BP |
3545 | packet_in_size = sizeof (struct ofp13_packet_in); |
3546 | } | |
3547 | ||
0f83fea0 BP |
3548 | /* The final argument is just an estimate of the space required. */ |
3549 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
50dcbd8e | 3550 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3551 | ofpbuf_put_zeros(packet, packet_in_size); |
50dcbd8e JG |
3552 | oxm_put_match(packet, &pin->flow_metadata, |
3553 | ofputil_protocol_to_ofp_version(protocol)); | |
0f83fea0 BP |
3554 | ofpbuf_put_zeros(packet, 2); |
3555 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3556 | ||
6fd6ed71 | 3557 | opi = packet->msg; |
0f83fea0 BP |
3558 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3559 | opi->pi.total_len = htons(pin->total_len); | |
3560 | opi->pi.reason = pin->reason; | |
3561 | opi->pi.table_id = pin->table_id; | |
b6a3dd9c | 3562 | if (protocol != OFPUTIL_P_OF12_OXM) { |
0f83fea0 BP |
3563 | opi->cookie = pin->cookie; |
3564 | } | |
3565 | ||
3566 | return packet; | |
3567 | } | |
3568 | ||
54834960 EJ |
3569 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3570 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3571 | struct ofpbuf * |
54834960 | 3572 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3573 | enum ofputil_protocol protocol, |
54834960 | 3574 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3575 | { |
54834960 | 3576 | struct ofpbuf *packet; |
ebb57021 | 3577 | |
0f83fea0 BP |
3578 | switch (protocol) { |
3579 | case OFPUTIL_P_OF10_STD: | |
3580 | case OFPUTIL_P_OF10_STD_TID: | |
3581 | case OFPUTIL_P_OF10_NXM: | |
3582 | case OFPUTIL_P_OF10_NXM_TID: | |
3583 | packet = (packet_in_format == NXPIF_NXM | |
3584 | ? ofputil_encode_nx_packet_in(pin) | |
3585 | : ofputil_encode_ofp10_packet_in(pin)); | |
3586 | break; | |
2e1ae200 | 3587 | |
0f83fea0 | 3588 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3589 | packet = ofputil_encode_ofp11_packet_in(pin); |
3590 | break; | |
d94240ec | 3591 | |
0f83fea0 BP |
3592 | case OFPUTIL_P_OF12_OXM: |
3593 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3594 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3595 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3596 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3597 | break; | |
3598 | ||
3599 | default: | |
428b2edd | 3600 | OVS_NOT_REACHED(); |
54834960 | 3601 | } |
54834960 | 3602 | |
0f83fea0 | 3603 | ofpmsg_update_length(packet); |
54834960 | 3604 | return packet; |
ebb57021 BP |
3605 | } |
3606 | ||
5014a89d BP |
3607 | /* Returns a string form of 'reason'. The return value is either a statically |
3608 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3609 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3610 | const char * |
5014a89d BP |
3611 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3612 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3613 | { |
7c1a76a4 BP |
3614 | switch (reason) { |
3615 | case OFPR_NO_MATCH: | |
3616 | return "no_match"; | |
3617 | case OFPR_ACTION: | |
3618 | return "action"; | |
3619 | case OFPR_INVALID_TTL: | |
3620 | return "invalid_ttl"; | |
424467c6 SS |
3621 | case OFPR_ACTION_SET: |
3622 | return "action_set"; | |
3623 | case OFPR_GROUP: | |
3624 | return "group"; | |
3625 | case OFPR_PACKET_OUT: | |
3626 | return "packet_out"; | |
7c1a76a4 BP |
3627 | |
3628 | case OFPR_N_REASONS: | |
3629 | default: | |
5014a89d BP |
3630 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3631 | return reasonbuf; | |
7c1a76a4 BP |
3632 | } |
3633 | } | |
3634 | ||
3635 | bool | |
3636 | ofputil_packet_in_reason_from_string(const char *s, | |
3637 | enum ofp_packet_in_reason *reason) | |
3638 | { | |
3639 | int i; | |
3640 | ||
3641 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3642 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3643 | const char *reason_s; | |
3644 | ||
3645 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3646 | sizeof reasonbuf); | |
3647 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3648 | *reason = i; |
3649 | return true; | |
3650 | } | |
3651 | } | |
3652 | return false; | |
3653 | } | |
3654 | ||
f25d0cf3 BP |
3655 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3656 | * 'po'. | |
3657 | * | |
3658 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3659 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3660 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3661 | * | |
3662 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3663 | enum ofperr |
3664 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3665 | const struct ofp_header *oh, |
f25d0cf3 | 3666 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3667 | { |
982697a4 | 3668 | enum ofpraw raw; |
c6a93eb7 BP |
3669 | struct ofpbuf b; |
3670 | ||
982697a4 BP |
3671 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3672 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3673 | |
eb5ee596 SH |
3674 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3675 | enum ofperr error; | |
3676 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3677 | ||
3678 | po->buffer_id = ntohl(opo->buffer_id); | |
3679 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3680 | if (error) { | |
3681 | return error; | |
3682 | } | |
3683 | ||
e3f8f887 JR |
3684 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3685 | oh->version, ofpacts); | |
eb5ee596 SH |
3686 | if (error) { |
3687 | return error; | |
3688 | } | |
eb5ee596 | 3689 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3690 | enum ofperr error; |
31a9e63f | 3691 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3692 | |
3693 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3694 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3695 | |
e3f8f887 JR |
3696 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3697 | oh->version, ofpacts); | |
8a6bc7cd SH |
3698 | if (error) { |
3699 | return error; | |
3700 | } | |
3701 | } else { | |
428b2edd | 3702 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3703 | } |
3704 | ||
4e022ec0 AW |
3705 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3706 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3707 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3708 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3709 | po->in_port); | |
2e1bfcb6 | 3710 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3711 | } |
3712 | ||
6fd6ed71 PS |
3713 | po->ofpacts = ofpacts->data; |
3714 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3715 | |
3716 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
3717 | po->packet = b.data; |
3718 | po->packet_len = b.size; | |
c6a93eb7 BP |
3719 | } else { |
3720 | po->packet = NULL; | |
3721 | po->packet_len = 0; | |
3722 | } | |
3723 | ||
3724 | return 0; | |
3725 | } | |
6c038611 BP |
3726 | \f |
3727 | /* ofputil_phy_port */ | |
3728 | ||
3729 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3730 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3731 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3732 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3733 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3734 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3735 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3736 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3737 | ||
3738 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3739 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3740 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3741 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3742 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3743 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3744 | |
9e1fd49b BP |
3745 | static enum netdev_features |
3746 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3747 | { |
3748 | uint32_t ofp10 = ntohl(ofp10_); | |
3749 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3750 | } | |
3751 | ||
9e1fd49b BP |
3752 | static ovs_be32 |
3753 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3754 | { |
3755 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3756 | } | |
c6a93eb7 | 3757 | |
9e1fd49b BP |
3758 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3759 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3760 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3761 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3762 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3763 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3764 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3765 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3766 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3767 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3768 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3769 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3770 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3771 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3772 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3773 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3774 | ||
3775 | static enum netdev_features | |
3776 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3777 | { | |
3778 | return ntohl(ofp11) & 0xffff; | |
3779 | } | |
3780 | ||
3781 | static ovs_be32 | |
3782 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3783 | { | |
3784 | return htonl(features & 0xffff); | |
3785 | } | |
3786 | ||
3787 | static enum ofperr | |
3788 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3789 | const struct ofp10_phy_port *opp) | |
3790 | { | |
4e022ec0 | 3791 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 3792 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
3793 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
3794 | ||
3795 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3796 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3797 | ||
3798 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3799 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3800 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3801 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3802 | ||
d02a5f8e BP |
3803 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3804 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3805 | |
3806 | return 0; | |
3807 | } | |
3808 | ||
3809 | static enum ofperr | |
3810 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3811 | const struct ofp11_port *op) | |
3812 | { | |
3813 | enum ofperr error; | |
3814 | ||
9e1fd49b BP |
3815 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3816 | if (error) { | |
3817 | return error; | |
3818 | } | |
74ff3298 | 3819 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
3820 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3821 | ||
3822 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3823 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3824 | |
3825 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3826 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3827 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3828 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3829 | ||
3830 | pp->curr_speed = ntohl(op->curr_speed); | |
3831 | pp->max_speed = ntohl(op->max_speed); | |
3832 | ||
3833 | return 0; | |
3834 | } | |
3835 | ||
8c3cc785 BP |
3836 | static enum ofperr |
3837 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3838 | struct ofputil_phy_port *pp) | |
3839 | { | |
6fd6ed71 | 3840 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 3841 | |
6fd6ed71 | 3842 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
3843 | return OFPERR_OFPBPC_BAD_LEN; |
3844 | } | |
3845 | ||
3846 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3847 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3848 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3849 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3850 | ||
3851 | pp->curr_speed = ntohl(eth->curr_speed); | |
3852 | pp->max_speed = ntohl(eth->max_speed); | |
3853 | ||
3854 | return 0; | |
3855 | } | |
3856 | ||
3857 | static enum ofperr | |
3858 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3859 | { | |
3860 | struct ofpbuf properties; | |
3861 | struct ofp14_port *op; | |
3862 | enum ofperr error; | |
3863 | size_t len; | |
3864 | ||
3865 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3866 | if (!op) { | |
3867 | return OFPERR_OFPBRC_BAD_LEN; | |
3868 | } | |
3869 | ||
3870 | len = ntohs(op->length); | |
6fd6ed71 | 3871 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
3872 | return OFPERR_OFPBRC_BAD_LEN; |
3873 | } | |
3874 | len -= sizeof *op; | |
3875 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3876 | ||
3877 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3878 | if (error) { | |
3879 | return error; | |
3880 | } | |
74ff3298 | 3881 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
3882 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3883 | ||
3884 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3885 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3886 | ||
6fd6ed71 | 3887 | while (properties.size > 0) { |
8c3cc785 BP |
3888 | struct ofpbuf payload; |
3889 | enum ofperr error; | |
3890 | uint16_t type; | |
3891 | ||
3892 | error = ofputil_pull_property(&properties, &payload, &type); | |
3893 | if (error) { | |
3894 | return error; | |
3895 | } | |
3896 | ||
3897 | switch (type) { | |
3898 | case OFPPDPT14_ETHERNET: | |
3899 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3900 | break; | |
3901 | ||
3902 | default: | |
3903 | log_property(true, "unknown port property %"PRIu16, type); | |
3904 | error = 0; | |
3905 | break; | |
3906 | } | |
3907 | ||
3908 | if (error) { | |
3909 | return error; | |
3910 | } | |
3911 | } | |
3912 | ||
3913 | return 0; | |
3914 | } | |
3915 | ||
9e1fd49b BP |
3916 | static void |
3917 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3918 | struct ofp10_phy_port *opp) | |
3919 | { | |
3920 | memset(opp, 0, sizeof *opp); | |
3921 | ||
4e022ec0 | 3922 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 3923 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3924 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3925 | ||
3926 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3927 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3928 | ||
3929 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3930 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3931 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3932 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3933 | } | |
3934 | ||
3935 | static void | |
3936 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3937 | struct ofp11_port *op) | |
3938 | { | |
3939 | memset(op, 0, sizeof *op); | |
3940 | ||
3941 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 3942 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3943 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3944 | ||
3945 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3946 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3947 | ||
3948 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3949 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3950 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3951 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3952 | ||
3953 | op->curr_speed = htonl(pp->curr_speed); | |
3954 | op->max_speed = htonl(pp->max_speed); | |
3955 | } | |
3956 | ||
8c3cc785 BP |
3957 | static void |
3958 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3959 | struct ofpbuf *b) | |
3960 | { | |
3961 | struct ofp14_port *op; | |
3962 | struct ofp14_port_desc_prop_ethernet *eth; | |
3963 | ||
3964 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3965 | ||
3966 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3967 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3968 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 3969 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
3970 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
3971 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3972 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3973 | ||
3974 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
3975 | eth->type = htons(OFPPDPT14_ETHERNET); | |
3976 | eth->length = htons(sizeof *eth); | |
3977 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
3978 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3979 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3980 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3981 | eth->curr_speed = htonl(pp->curr_speed); | |
3982 | eth->max_speed = htonl(pp->max_speed); | |
3983 | } | |
3984 | ||
9e1fd49b | 3985 | static void |
2e3fa633 SH |
3986 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3987 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3988 | { |
2e3fa633 SH |
3989 | switch (ofp_version) { |
3990 | case OFP10_VERSION: { | |
6b0f20ac BP |
3991 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3992 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
3993 | break; |
3994 | } | |
3995 | ||
3996 | case OFP11_VERSION: | |
2e1ae200 JR |
3997 | case OFP12_VERSION: |
3998 | case OFP13_VERSION: { | |
6b0f20ac BP |
3999 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4000 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4001 | break; |
4002 | } | |
4003 | ||
c37c0382 | 4004 | case OFP14_VERSION: |
42dccab5 | 4005 | case OFP15_VERSION: |
8c3cc785 | 4006 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4007 | break; |
4008 | ||
2e3fa633 | 4009 | default: |
428b2edd | 4010 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4011 | } |
4012 | } | |
2be393ed | 4013 | |
70ae4f93 BP |
4014 | enum ofperr |
4015 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4016 | ofp_port_t *port) | |
4017 | { | |
4018 | struct ofpbuf b; | |
4019 | enum ofpraw raw; | |
4020 | ||
4021 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
4022 | raw = ofpraw_pull_assert(&b); | |
4023 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
4024 | *port = OFPP_ANY; | |
4025 | return 0; | |
4026 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4027 | ovs_be32 *ofp11_port; | |
4028 | ||
4029 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4030 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4031 | } else { | |
4032 | OVS_NOT_REACHED(); | |
4033 | } | |
4034 | } | |
4035 | ||
4036 | struct ofpbuf * | |
4037 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4038 | ofp_port_t port) | |
4039 | { | |
4040 | struct ofpbuf *request; | |
70ae4f93 BP |
4041 | |
4042 | switch (ofp_version) { | |
4043 | case OFP10_VERSION: | |
4044 | case OFP11_VERSION: | |
4045 | case OFP12_VERSION: | |
4046 | case OFP13_VERSION: | |
4047 | case OFP14_VERSION: | |
4048 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4049 | ofp_version, 0); | |
4050 | break; | |
7448d548 MT |
4051 | case OFP15_VERSION:{ |
4052 | struct ofp15_port_desc_request *req; | |
70ae4f93 BP |
4053 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4054 | ofp_version, 0); | |
7448d548 MT |
4055 | req = ofpbuf_put_zeros(request, sizeof *req); |
4056 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4057 | break; |
7448d548 | 4058 | } |
70ae4f93 BP |
4059 | default: |
4060 | OVS_NOT_REACHED(); | |
4061 | } | |
4062 | ||
4063 | return request; | |
4064 | } | |
4065 | ||
2be393ed | 4066 | void |
e28ac5cf | 4067 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4068 | struct ovs_list *replies) |
2be393ed | 4069 | { |
6b0f20ac | 4070 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 4071 | size_t start_ofs = reply->size; |
c37c0382 | 4072 | |
6b0f20ac BP |
4073 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4074 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4075 | } |
9e1fd49b | 4076 | \f |
ad99e2ed BP |
4077 | /* ofputil_switch_config */ |
4078 | ||
4079 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4080 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4081 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4082 | static bool | |
4083 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4084 | struct ofputil_switch_config *config) | |
4085 | { | |
4086 | const struct ofp_switch_config *osc; | |
4087 | struct ofpbuf b; | |
4088 | ||
4089 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4090 | ofpraw_pull_assert(&b); | |
4091 | osc = ofpbuf_pull(&b, sizeof *osc); | |
4092 | ||
4093 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; | |
4094 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4095 | ||
4096 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4097 | if (oh->version < OFP13_VERSION) { | |
4098 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4099 | valid_mask |= ttl_bit; | |
4100 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4101 | } else { | |
4102 | config->invalid_ttl_to_controller = -1; | |
4103 | } | |
4104 | ||
4105 | return !(osc->flags & ~valid_mask); | |
4106 | } | |
4107 | ||
4108 | void | |
4109 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4110 | struct ofputil_switch_config *config) | |
4111 | { | |
4112 | ofputil_decode_switch_config(oh, config); | |
4113 | } | |
4114 | ||
4115 | enum ofperr | |
4116 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4117 | struct ofputil_switch_config *config) | |
4118 | { | |
4119 | return (ofputil_decode_switch_config(oh, config) | |
4120 | ? 0 | |
4121 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4122 | } | |
4123 | ||
4124 | static struct ofpbuf * | |
4125 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4126 | struct ofpbuf *b) | |
4127 | { | |
4128 | const struct ofp_header *oh = b->data; | |
4129 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4130 | osc->flags = htons(config->frag); | |
4131 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4132 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4133 | } | |
4134 | osc->miss_send_len = htons(config->miss_send_len); | |
4135 | return b; | |
4136 | } | |
4137 | ||
4138 | struct ofpbuf * | |
4139 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4140 | const struct ofputil_switch_config *config) | |
4141 | { | |
4142 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4143 | request, 0); | |
4144 | return ofputil_put_switch_config(config, b); | |
4145 | } | |
4146 | ||
4147 | struct ofpbuf * | |
4148 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4149 | enum ofp_version version) | |
4150 | { | |
4151 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4152 | return ofputil_put_switch_config(config, b); | |
4153 | } | |
4154 | \f | |
9e1fd49b BP |
4155 | /* ofputil_switch_features */ |
4156 | ||
4157 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4158 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4159 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4160 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4161 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4162 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4163 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4164 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4165 | ||
60202987 SH |
4166 | static uint32_t |
4167 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4168 | { | |
0746a84f | 4169 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4170 | switch (ofp_version) { |
4171 | case OFP10_VERSION: | |
4172 | case OFP11_VERSION: | |
4173 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4174 | case OFP12_VERSION: | |
2e1ae200 | 4175 | case OFP13_VERSION: |
c37c0382 | 4176 | case OFP14_VERSION: |
42dccab5 | 4177 | case OFP15_VERSION: |
18cc69d9 | 4178 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4179 | default: |
4180 | /* Caller needs to check osf->header.version itself */ | |
4181 | return 0; | |
4182 | } | |
4183 | } | |
4184 | ||
9e1fd49b BP |
4185 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4186 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4187 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4188 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4189 | * OFPERR_* value. */ |
4190 | enum ofperr | |
982697a4 | 4191 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4192 | struct ofputil_switch_features *features, |
4193 | struct ofpbuf *b) | |
4194 | { | |
982697a4 BP |
4195 | const struct ofp_switch_features *osf; |
4196 | enum ofpraw raw; | |
4197 | ||
4198 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4199 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4200 | |
982697a4 | 4201 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4202 | features->datapath_id = ntohll(osf->datapath_id); |
4203 | features->n_buffers = ntohl(osf->n_buffers); | |
4204 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4205 | features->auxiliary_id = 0; |
9e1fd49b | 4206 | |
60202987 SH |
4207 | features->capabilities = ntohl(osf->capabilities) & |
4208 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4209 | |
982697a4 | 4210 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4211 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4212 | features->capabilities |= OFPUTIL_C_STP; | |
4213 | } | |
08d1e234 BP |
4214 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4215 | OFP10_VERSION); | |
2e1ae200 JR |
4216 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4217 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4218 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4219 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4220 | } | |
08d1e234 | 4221 | features->ofpacts = 0; |
2e1ae200 JR |
4222 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4223 | features->auxiliary_id = osf->auxiliary_id; | |
4224 | } | |
9e1fd49b BP |
4225 | } else { |
4226 | return OFPERR_OFPBRC_BAD_VERSION; | |
4227 | } | |
4228 | ||
4229 | return 0; | |
4230 | } | |
4231 | ||
fca6d553 BP |
4232 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4233 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4234 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4235 | * | |
4236 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4237 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4238 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4239 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4240 | * message. | |
4241 | * | |
4242 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4243 | * stats request to get the ports. */ | |
347b7ac4 | 4244 | bool |
fca6d553 | 4245 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4246 | { |
6fd6ed71 | 4247 | struct ofp_header *oh = b->data; |
13e1aff8 | 4248 | size_t phy_port_size; |
347b7ac4 | 4249 | |
fca6d553 | 4250 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4251 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4252 | return false; |
13e1aff8 BP |
4253 | } |
4254 | ||
4255 | phy_port_size = (oh->version == OFP10_VERSION | |
4256 | ? sizeof(struct ofp10_phy_port) | |
4257 | : sizeof(struct ofp11_port)); | |
4258 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4259 | /* There's room for additional ports in the feature reply. | |
4260 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4261 | return true; |
4262 | } | |
13e1aff8 BP |
4263 | |
4264 | /* The feature reply has no room for more ports. Probably the list is | |
4265 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4266 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4267 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4268 | ofpmsg_update_length(b); |
4269 | return false; | |
347b7ac4 JP |
4270 | } |
4271 | ||
9e1fd49b BP |
4272 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4273 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4274 | * information to the buffer with subsequent calls to | |
4275 | * ofputil_put_switch_features_port(). */ | |
4276 | struct ofpbuf * | |
4277 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4278 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4279 | { | |
4280 | struct ofp_switch_features *osf; | |
4281 | struct ofpbuf *b; | |
2e3fa633 SH |
4282 | enum ofp_version version; |
4283 | enum ofpraw raw; | |
982697a4 BP |
4284 | |
4285 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4286 | switch (version) { |
4287 | case OFP10_VERSION: | |
4288 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4289 | break; | |
4290 | case OFP11_VERSION: | |
4291 | case OFP12_VERSION: | |
4292 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4293 | break; | |
2e1ae200 | 4294 | case OFP13_VERSION: |
c37c0382 | 4295 | case OFP14_VERSION: |
42dccab5 | 4296 | case OFP15_VERSION: |
2e1ae200 JR |
4297 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4298 | break; | |
2e3fa633 | 4299 | default: |
428b2edd | 4300 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4301 | } |
4302 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4303 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4304 | osf->datapath_id = htonll(features->datapath_id); |
4305 | osf->n_buffers = htonl(features->n_buffers); | |
4306 | osf->n_tables = features->n_tables; | |
4307 | ||
4308 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4309 | osf->capabilities = htonl(features->capabilities & |
4310 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4311 | switch (version) { |
4312 | case OFP10_VERSION: | |
9e1fd49b BP |
4313 | if (features->capabilities & OFPUTIL_C_STP) { |
4314 | osf->capabilities |= htonl(OFPC10_STP); | |
4315 | } | |
08d1e234 BP |
4316 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4317 | OFP10_VERSION); | |
2e3fa633 | 4318 | break; |
2e1ae200 | 4319 | case OFP13_VERSION: |
c37c0382 | 4320 | case OFP14_VERSION: |
42dccab5 | 4321 | case OFP15_VERSION: |
2e1ae200 JR |
4322 | osf->auxiliary_id = features->auxiliary_id; |
4323 | /* fall through */ | |
2e3fa633 SH |
4324 | case OFP11_VERSION: |
4325 | case OFP12_VERSION: | |
9e1fd49b BP |
4326 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4327 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4328 | } | |
2e3fa633 SH |
4329 | break; |
4330 | default: | |
428b2edd | 4331 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4332 | } |
4333 | ||
4334 | return b; | |
4335 | } | |
4336 | ||
4337 | /* Encodes 'pp' into the format required by the switch_features message already | |
4338 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4339 | * and appends the encoded version to 'b'. */ | |
4340 | void | |
4341 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4342 | struct ofpbuf *b) | |
4343 | { | |
6fd6ed71 | 4344 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4345 | |
e0c91c0c | 4346 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4347 | /* Try adding a port description to the message, but drop it again if |
4348 | * the buffer overflows. (This possibility for overflow is why | |
4349 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4350 | size_t start_ofs = b->size; |
e0c91c0c | 4351 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4352 | if (b->size > UINT16_MAX) { |
4353 | b->size = start_ofs; | |
6b0f20ac | 4354 | } |
e0c91c0c | 4355 | } |
9e1fd49b BP |
4356 | } |
4357 | \f | |
4358 | /* ofputil_port_status */ | |
4359 | ||
4360 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4361 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4362 | enum ofperr | |
982697a4 | 4363 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4364 | struct ofputil_port_status *ps) |
4365 | { | |
982697a4 | 4366 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4367 | struct ofpbuf b; |
4368 | int retval; | |
4369 | ||
982697a4 BP |
4370 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4371 | ofpraw_pull_assert(&b); | |
4372 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4373 | ||
9e1fd49b BP |
4374 | if (ops->reason != OFPPR_ADD && |
4375 | ops->reason != OFPPR_DELETE && | |
4376 | ops->reason != OFPPR_MODIFY) { | |
4377 | return OFPERR_NXBRC_BAD_REASON; | |
4378 | } | |
4379 | ps->reason = ops->reason; | |
4380 | ||
982697a4 | 4381 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4382 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4383 | return retval; |
4384 | } | |
4385 | ||
4386 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4387 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4388 | * a buffer owned by the caller. */ | |
4389 | struct ofpbuf * | |
4390 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4391 | enum ofputil_protocol protocol) | |
4392 | { | |
4393 | struct ofp_port_status *ops; | |
4394 | struct ofpbuf *b; | |
2e3fa633 SH |
4395 | enum ofp_version version; |
4396 | enum ofpraw raw; | |
982697a4 BP |
4397 | |
4398 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4399 | switch (version) { |
4400 | case OFP10_VERSION: | |
4401 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4402 | break; | |
4403 | ||
4404 | case OFP11_VERSION: | |
4405 | case OFP12_VERSION: | |
2e1ae200 | 4406 | case OFP13_VERSION: |
2e3fa633 SH |
4407 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4408 | break; | |
4409 | ||
8c3cc785 | 4410 | case OFP14_VERSION: |
42dccab5 | 4411 | case OFP15_VERSION: |
8c3cc785 BP |
4412 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4413 | break; | |
4414 | ||
2e3fa633 | 4415 | default: |
428b2edd | 4416 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4417 | } |
4418 | ||
4419 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4420 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4421 | ops->reason = ps->reason; |
982697a4 BP |
4422 | ofputil_put_phy_port(version, &ps->desc, b); |
4423 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4424 | return b; |
4425 | } | |
918f2b82 | 4426 | |
9e1fd49b BP |
4427 | /* ofputil_port_mod */ |
4428 | ||
18cc69d9 BP |
4429 | static enum ofperr |
4430 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4431 | struct ofputil_port_mod *pm) | |
4432 | { | |
6fd6ed71 | 4433 | struct ofp14_port_mod_prop_ethernet *eth = property->data; |
18cc69d9 | 4434 | |
6fd6ed71 | 4435 | if (property->size != sizeof *eth) { |
18cc69d9 BP |
4436 | return OFPERR_OFPBRC_BAD_LEN; |
4437 | } | |
4438 | ||
4439 | pm->advertise = netdev_port_features_from_ofp11(eth->advertise); | |
4440 | return 0; | |
4441 | } | |
4442 | ||
9e1fd49b BP |
4443 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4444 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4445 | enum ofperr | |
4446 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4447 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4448 | { |
982697a4 BP |
4449 | enum ofpraw raw; |
4450 | struct ofpbuf b; | |
9e1fd49b | 4451 | |
982697a4 BP |
4452 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4453 | raw = ofpraw_pull_assert(&b); | |
4454 | ||
4455 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
6fd6ed71 | 4456 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4457 | |
4e022ec0 | 4458 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4459 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4460 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4461 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4462 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4463 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4464 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4465 | enum ofperr error; |
4466 | ||
9e1fd49b BP |
4467 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4468 | if (error) { | |
4469 | return error; | |
4470 | } | |
4471 | ||
74ff3298 | 4472 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4473 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4474 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4475 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4476 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4477 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4478 | enum ofperr error; | |
4479 | ||
4480 | memset(pm, 0, sizeof *pm); | |
4481 | ||
4482 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4483 | if (error) { | |
4484 | return error; | |
4485 | } | |
4486 | ||
74ff3298 | 4487 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4488 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4489 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4490 | ||
6fd6ed71 | 4491 | while (b.size > 0) { |
18cc69d9 BP |
4492 | struct ofpbuf property; |
4493 | enum ofperr error; | |
4494 | uint16_t type; | |
4495 | ||
4496 | error = ofputil_pull_property(&b, &property, &type); | |
4497 | if (error) { | |
4498 | return error; | |
4499 | } | |
4500 | ||
4501 | switch (type) { | |
4502 | case OFPPMPT14_ETHERNET: | |
4503 | error = parse_port_mod_ethernet_property(&property, pm); | |
4504 | break; | |
4505 | ||
4506 | default: | |
4507 | log_property(loose, "unknown port_mod property %"PRIu16, type); | |
4508 | if (loose) { | |
4509 | error = 0; | |
4510 | } else if (type == OFPPMPT14_EXPERIMENTER) { | |
4511 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
4512 | } else { | |
4513 | error = OFPERR_OFPBRC_BAD_TYPE; | |
4514 | } | |
4515 | break; | |
4516 | } | |
4517 | ||
4518 | if (error) { | |
4519 | return error; | |
4520 | } | |
4521 | } | |
9e1fd49b | 4522 | } else { |
982697a4 | 4523 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4524 | } |
4525 | ||
4526 | pm->config &= pm->mask; | |
4527 | return 0; | |
4528 | } | |
4529 | ||
4530 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4531 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4532 | * owned by the caller. */ | |
4533 | struct ofpbuf * | |
4534 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4535 | enum ofputil_protocol protocol) | |
4536 | { | |
2e3fa633 | 4537 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4538 | struct ofpbuf *b; |
4539 | ||
2e3fa633 SH |
4540 | switch (ofp_version) { |
4541 | case OFP10_VERSION: { | |
9e1fd49b BP |
4542 | struct ofp10_port_mod *opm; |
4543 | ||
982697a4 BP |
4544 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4545 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4546 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 4547 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4548 | opm->config = htonl(pm->config & OFPPC10_ALL); |
4549 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4550 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4551 | break; |
4552 | } | |
4553 | ||
5fe7c919 | 4554 | case OFP11_VERSION: |
2e1ae200 JR |
4555 | case OFP12_VERSION: |
4556 | case OFP13_VERSION: { | |
9e1fd49b BP |
4557 | struct ofp11_port_mod *opm; |
4558 | ||
982697a4 BP |
4559 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4560 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4561 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 4562 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4563 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4564 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4565 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4566 | break; |
4567 | } | |
42dccab5 BP |
4568 | case OFP14_VERSION: |
4569 | case OFP15_VERSION: { | |
18cc69d9 BP |
4570 | struct ofp14_port_mod_prop_ethernet *eth; |
4571 | struct ofp14_port_mod *opm; | |
4572 | ||
4573 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth); | |
4574 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4575 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 4576 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
4577 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4578 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4579 | ||
4580 | if (pm->advertise) { | |
4581 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
4582 | eth->type = htons(OFPPMPT14_ETHERNET); | |
4583 | eth->length = htons(sizeof *eth); | |
4584 | eth->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
4585 | } | |
c37c0382 | 4586 | break; |
18cc69d9 | 4587 | } |
918f2b82 | 4588 | default: |
428b2edd | 4589 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4590 | } |
4591 | ||
4592 | return b; | |
4593 | } | |
72b25867 BP |
4594 | \f |
4595 | /* Table features. */ | |
918f2b82 | 4596 | |
5deff5aa | 4597 | static enum ofperr |
9a4eddbb | 4598 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
72b25867 | 4599 | uint16_t *typep) |
5deff5aa | 4600 | { |
9a4eddbb | 4601 | enum ofperr error; |
5deff5aa | 4602 | |
9a4eddbb BP |
4603 | error = ofputil_pull_property(msg, payload, typep); |
4604 | if (payload && !error) { | |
4605 | ofpbuf_pull(payload, sizeof(struct ofp_prop_header)); | |
5deff5aa | 4606 | } |
9a4eddbb | 4607 | return error; |
5deff5aa AW |
4608 | } |
4609 | ||
4610 | static enum ofperr | |
08d1e234 BP |
4611 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4612 | uint64_t *ofpacts) | |
5deff5aa | 4613 | { |
08d1e234 | 4614 | uint32_t types = 0; |
5deff5aa | 4615 | |
6fd6ed71 | 4616 | while (payload->size > 0) { |
08d1e234 BP |
4617 | uint16_t type; |
4618 | enum ofperr error; | |
4619 | ||
72b25867 | 4620 | error = ofputil_pull_property__(payload, NULL, 1, &type); |
5deff5aa AW |
4621 | if (error) { |
4622 | return error; | |
4623 | } | |
08d1e234 BP |
4624 | if (type < CHAR_BIT * sizeof types) { |
4625 | types |= 1u << type; | |
5deff5aa AW |
4626 | } |
4627 | } | |
08d1e234 BP |
4628 | |
4629 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4630 | return 0; |
4631 | } | |
4632 | ||
4633 | static enum ofperr | |
4634 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4635 | { | |
4636 | *insts = 0; | |
6fd6ed71 | 4637 | while (payload->size > 0) { |
5deff5aa AW |
4638 | enum ovs_instruction_type inst; |
4639 | enum ofperr error; | |
4640 | uint16_t ofpit; | |
4641 | ||
72b25867 BP |
4642 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4643 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4644 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4645 | * and do not mention any padding before the first instruction ID. | |
4646 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4647 | * aligned on an odd 4-byte boundary.) | |
4648 | * | |
4649 | * Anyway, we just assume they're all glommed together on byte | |
4650 | * boundaries. */ | |
4651 | error = ofputil_pull_property__(payload, NULL, 1, &ofpit); | |
5deff5aa AW |
4652 | if (error) { |
4653 | return error; | |
4654 | } | |
4655 | ||
4656 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4657 | if (!error) { | |
4658 | *insts |= 1u << inst; | |
4659 | } else if (!loose) { | |
4660 | return error; | |
4661 | } | |
4662 | } | |
4663 | return 0; | |
4664 | } | |
4665 | ||
4666 | static enum ofperr | |
4667 | parse_table_features_next_table(struct ofpbuf *payload, | |
4668 | unsigned long int *next_tables) | |
4669 | { | |
4670 | size_t i; | |
4671 | ||
4672 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
4673 | for (i = 0; i < payload->size; i++) { |
4674 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 4675 | if (id >= 255) { |
9a4eddbb | 4676 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4677 | } |
4678 | bitmap_set1(next_tables, id); | |
4679 | } | |
4680 | return 0; | |
4681 | } | |
4682 | ||
5deff5aa AW |
4683 | static enum ofperr |
4684 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4685 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4686 | { |
abadfcb0 BP |
4687 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4688 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4689 | |
6fd6ed71 | 4690 | while (payload->size > 0) { |
5deff5aa AW |
4691 | const struct mf_field *field; |
4692 | enum ofperr error; | |
4693 | bool hasmask; | |
4694 | ||
178742f9 | 4695 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4696 | if (!error) { |
abadfcb0 | 4697 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4698 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4699 | return error; | |
4700 | } | |
4701 | } | |
4702 | if (exactp) { | |
4703 | *exactp = exact; | |
abadfcb0 | 4704 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4705 | return OFPERR_OFPBMC_BAD_MASK; |
4706 | } | |
4707 | if (maskedp) { | |
4708 | *maskedp = masked; | |
abadfcb0 | 4709 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4710 | return OFPERR_OFPBMC_BAD_MASK; |
4711 | } | |
4712 | return 0; | |
4713 | } | |
4714 | ||
4715 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4716 | * ofputil_table_features in 'tf'. | |
4717 | * | |
4718 | * If 'loose' is true, this function ignores properties and values that it does | |
4719 | * not understand, as a controller would want to do when interpreting | |
4720 | * capabilities provided by a switch. If 'loose' is false, this function | |
4721 | * treats unknown properties and values as an error, as a switch would want to | |
4722 | * do when interpreting a configuration request made by a controller. | |
4723 | * | |
4724 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4725 | * this function multiple times for a single 'msg' iterates through the tables | |
4726 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4727 | * and not modify them between calls. | |
4728 | * | |
4729 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4730 | * a positive "enum ofperr" value. */ | |
4731 | int | |
4732 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4733 | struct ofputil_table_features *tf, bool loose) | |
4734 | { | |
08d1e234 | 4735 | const struct ofp_header *oh; |
5deff5aa | 4736 | struct ofp13_table_features *otf; |
ae665de5 | 4737 | struct ofpbuf properties; |
5deff5aa AW |
4738 | unsigned int len; |
4739 | ||
3c1bb396 BP |
4740 | memset(tf, 0, sizeof *tf); |
4741 | ||
6fd6ed71 | 4742 | if (!msg->header) { |
5deff5aa AW |
4743 | ofpraw_pull_assert(msg); |
4744 | } | |
6fd6ed71 | 4745 | oh = msg->header; |
5deff5aa | 4746 | |
6fd6ed71 | 4747 | if (!msg->size) { |
5deff5aa AW |
4748 | return EOF; |
4749 | } | |
4750 | ||
6fd6ed71 | 4751 | if (msg->size < sizeof *otf) { |
9a4eddbb | 4752 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4753 | } |
4754 | ||
6fd6ed71 | 4755 | otf = msg->data; |
5deff5aa | 4756 | len = ntohs(otf->length); |
6fd6ed71 | 4757 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 4758 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4759 | } |
ae665de5 BP |
4760 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4761 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4762 | |
4763 | tf->table_id = otf->table_id; | |
4764 | if (tf->table_id == OFPTT_ALL) { | |
4765 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4766 | } | |
4767 | ||
4768 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4769 | tf->metadata_match = otf->metadata_match; | |
4770 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
4771 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
4772 | if (oh->version >= OFP14_VERSION) { | |
4773 | uint32_t caps = ntohl(otf->capabilities); | |
4774 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
4775 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
4776 | } else { | |
4777 | tf->supports_eviction = -1; | |
4778 | tf->supports_vacancy_events = -1; | |
4779 | } | |
5deff5aa AW |
4780 | tf->max_entries = ntohl(otf->max_entries); |
4781 | ||
6fd6ed71 | 4782 | while (properties.size > 0) { |
5deff5aa AW |
4783 | struct ofpbuf payload; |
4784 | enum ofperr error; | |
4785 | uint16_t type; | |
4786 | ||
ae665de5 | 4787 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4788 | if (error) { |
4789 | return error; | |
4790 | } | |
4791 | ||
4792 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4793 | case OFPTFPT13_INSTRUCTIONS: | |
4794 | error = parse_instruction_ids(&payload, loose, | |
4795 | &tf->nonmiss.instructions); | |
4796 | break; | |
4797 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4798 | error = parse_instruction_ids(&payload, loose, | |
4799 | &tf->miss.instructions); | |
4800 | break; | |
4801 | ||
4802 | case OFPTFPT13_NEXT_TABLES: | |
4803 | error = parse_table_features_next_table(&payload, | |
4804 | tf->nonmiss.next); | |
4805 | break; | |
4806 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4807 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4808 | break; | |
4809 | ||
4810 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4811 | error = parse_action_bitmap(&payload, oh->version, |
4812 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4813 | break; |
4814 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4815 | error = parse_action_bitmap(&payload, oh->version, |
4816 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4817 | break; |
4818 | ||
4819 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4820 | error = parse_action_bitmap(&payload, oh->version, |
4821 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4822 | break; |
4823 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4824 | error = parse_action_bitmap(&payload, oh->version, |
4825 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4826 | break; |
4827 | ||
4828 | case OFPTFPT13_MATCH: | |
4829 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4830 | break; | |
4831 | case OFPTFPT13_WILDCARDS: | |
4832 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4833 | break; | |
4834 | ||
4835 | case OFPTFPT13_WRITE_SETFIELD: | |
4836 | error = parse_oxms(&payload, loose, | |
4837 | &tf->nonmiss.write.set_fields, NULL); | |
4838 | break; | |
4839 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4840 | error = parse_oxms(&payload, loose, | |
4841 | &tf->miss.write.set_fields, NULL); | |
4842 | break; | |
4843 | case OFPTFPT13_APPLY_SETFIELD: | |
4844 | error = parse_oxms(&payload, loose, | |
4845 | &tf->nonmiss.apply.set_fields, NULL); | |
4846 | break; | |
4847 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4848 | error = parse_oxms(&payload, loose, | |
4849 | &tf->miss.apply.set_fields, NULL); | |
4850 | break; | |
4851 | ||
4852 | case OFPTFPT13_EXPERIMENTER: | |
4853 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb BP |
4854 | default: |
4855 | log_property(loose, "unknown table features property %"PRIu16, | |
4856 | type); | |
4857 | error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE; | |
5deff5aa AW |
4858 | break; |
4859 | } | |
4860 | if (error) { | |
4861 | return error; | |
4862 | } | |
4863 | } | |
4864 | ||
4865 | /* Fix inconsistencies: | |
4866 | * | |
e7227821 BP |
4867 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4868 | * fields are matchable. | |
5deff5aa AW |
4869 | * |
4870 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4871 | * that is arbitrarily maskable can be wildcarded entirely. |
4872 | * | |
4873 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4874 | * must be matchable for it to be meaningfully wildcarded. */ | |
4875 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4876 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4877 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4878 | |
4879 | return 0; | |
4880 | } | |
4881 | ||
4882 | /* Encodes and returns a request to obtain the table features of a switch. | |
4883 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4884 | struct ofpbuf * | |
4885 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4886 | { | |
4887 | struct ofpbuf *request = NULL; | |
4888 | ||
4889 | switch (ofp_version) { | |
4890 | case OFP10_VERSION: | |
4891 | case OFP11_VERSION: | |
4892 | case OFP12_VERSION: | |
4893 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4894 | "(\'-O OpenFlow13\')"); | |
4895 | case OFP13_VERSION: | |
4896 | case OFP14_VERSION: | |
42dccab5 | 4897 | case OFP15_VERSION: |
5deff5aa AW |
4898 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4899 | ofp_version, 0); | |
4900 | break; | |
4901 | default: | |
4902 | OVS_NOT_REACHED(); | |
4903 | } | |
4904 | ||
4905 | return request; | |
4906 | } | |
4907 | ||
3c4e10fb BP |
4908 | static void |
4909 | put_fields_property(struct ofpbuf *reply, | |
4910 | const struct mf_bitmap *fields, | |
4911 | const struct mf_bitmap *masks, | |
4912 | enum ofp13_table_feature_prop_type property, | |
4913 | enum ofp_version version) | |
4914 | { | |
4915 | size_t start_ofs; | |
4916 | int field; | |
4917 | ||
4918 | start_ofs = start_property(reply, property); | |
4919 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { | |
178742f9 BP |
4920 | nx_put_header(reply, field, version, |
4921 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb BP |
4922 | } |
4923 | end_property(reply, start_ofs); | |
4924 | } | |
4925 | ||
4926 | static void | |
4927 | put_table_action_features(struct ofpbuf *reply, | |
4928 | const struct ofputil_table_action_features *taf, | |
4929 | enum ofp13_table_feature_prop_type actions_type, | |
4930 | enum ofp13_table_feature_prop_type set_fields_type, | |
4931 | int miss_offset, enum ofp_version version) | |
4932 | { | |
4933 | size_t start_ofs; | |
4934 | ||
4935 | start_ofs = start_property(reply, actions_type + miss_offset); | |
4936 | put_bitmap_properties(reply, | |
4937 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4938 | version))); | |
4939 | end_property(reply, start_ofs); | |
4940 | ||
4941 | put_fields_property(reply, &taf->set_fields, NULL, | |
4942 | set_fields_type + miss_offset, version); | |
4943 | } | |
4944 | ||
4945 | static void | |
4946 | put_table_instruction_features( | |
4947 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4948 | int miss_offset, enum ofp_version version) | |
4949 | { | |
4950 | size_t start_ofs; | |
4951 | uint8_t table_id; | |
4952 | ||
4953 | start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset); | |
4954 | put_bitmap_properties(reply, | |
4955 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4956 | version))); | |
4957 | end_property(reply, start_ofs); | |
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 | ||
6fd6ed71 | 6267 | if (!msg->size) { |
2b07c8b1 BP |
6268 | return EOF; |
6269 | } | |
6270 | ||
6fd6ed71 | 6271 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6272 | goto bad_len; |
6273 | } | |
6274 | ||
6fd6ed71 | 6275 | oh = msg->header; |
e3f8f887 | 6276 | |
6fd6ed71 | 6277 | nfuh = msg->data; |
2b07c8b1 BP |
6278 | update->event = ntohs(nfuh->event); |
6279 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6280 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6281 | goto bad_len; |
6282 | } | |
6283 | ||
6284 | if (update->event == NXFME_ABBREV) { | |
6285 | struct nx_flow_update_abbrev *nfua; | |
6286 | ||
6287 | if (length != sizeof *nfua) { | |
6288 | goto bad_len; | |
6289 | } | |
6290 | ||
6291 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6292 | update->xid = nfua->xid; | |
6293 | return 0; | |
6294 | } else if (update->event == NXFME_ADDED | |
6295 | || update->event == NXFME_DELETED | |
6296 | || update->event == NXFME_MODIFIED) { | |
6297 | struct nx_flow_update_full *nfuf; | |
6298 | unsigned int actions_len; | |
6299 | unsigned int match_len; | |
6300 | enum ofperr error; | |
6301 | ||
6302 | if (length < sizeof *nfuf) { | |
6303 | goto bad_len; | |
6304 | } | |
6305 | ||
6306 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6307 | match_len = ntohs(nfuf->match_len); | |
6308 | if (sizeof *nfuf + match_len > length) { | |
6309 | goto bad_len; | |
6310 | } | |
6311 | ||
6312 | update->reason = ntohs(nfuf->reason); | |
6313 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6314 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6315 | update->table_id = nfuf->table_id; | |
6316 | update->cookie = nfuf->cookie; | |
81a76618 | 6317 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6318 | |
81a76618 | 6319 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6320 | if (error) { |
6321 | return error; | |
6322 | } | |
6323 | ||
6324 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6325 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6326 | ofpacts); | |
2b07c8b1 BP |
6327 | if (error) { |
6328 | return error; | |
6329 | } | |
6330 | ||
6fd6ed71 PS |
6331 | update->ofpacts = ofpacts->data; |
6332 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6333 | return 0; |
6334 | } else { | |
6335 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6336 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6337 | ntohs(nfuh->event)); | |
15549878 | 6338 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6339 | } |
6340 | ||
6341 | bad_len: | |
437d0d22 | 6342 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6343 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6344 | return OFPERR_OFPBRC_BAD_LEN; |
6345 | } | |
6346 | ||
6347 | uint32_t | |
6348 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6349 | { | |
982697a4 BP |
6350 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6351 | ||
6352 | return ntohl(cancel->id); | |
2b07c8b1 | 6353 | } |
9e1fd49b | 6354 | |
2b07c8b1 BP |
6355 | struct ofpbuf * |
6356 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6357 | { | |
6358 | struct nx_flow_monitor_cancel *nfmc; | |
6359 | struct ofpbuf *msg; | |
6360 | ||
982697a4 BP |
6361 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6362 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6363 | nfmc->id = htonl(id); |
6364 | return msg; | |
6365 | } | |
6366 | ||
6367 | void | |
ca6ba700 | 6368 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6369 | { |
6370 | struct ofpbuf *msg; | |
6371 | ||
982697a4 BP |
6372 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6373 | htonl(0), 1024); | |
2b07c8b1 BP |
6374 | |
6375 | list_init(replies); | |
6376 | list_push_back(replies, &msg->list_node); | |
6377 | } | |
6378 | ||
6379 | void | |
6380 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6381 | struct ovs_list *replies) |
2b07c8b1 | 6382 | { |
e28ac5cf | 6383 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6384 | struct nx_flow_update_header *nfuh; |
6385 | struct ofpbuf *msg; | |
6386 | size_t start_ofs; | |
6387 | ||
6388 | msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 6389 | start_ofs = msg->size; |
2b07c8b1 BP |
6390 | |
6391 | if (update->event == NXFME_ABBREV) { | |
6392 | struct nx_flow_update_abbrev *nfua; | |
6393 | ||
6394 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6395 | nfua->xid = update->xid; | |
6396 | } else { | |
6397 | struct nx_flow_update_full *nfuf; | |
6398 | int match_len; | |
6399 | ||
6400 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6401 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6402 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6403 | version); | |
2b07c8b1 BP |
6404 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6405 | nfuf->reason = htons(update->reason); | |
81a76618 | 6406 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6407 | nfuf->idle_timeout = htons(update->idle_timeout); |
6408 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6409 | nfuf->match_len = htons(match_len); | |
6410 | nfuf->table_id = update->table_id; | |
6411 | nfuf->cookie = update->cookie; | |
6412 | } | |
6413 | ||
6414 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6415 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6416 | nfuh->event = htons(update->event); |
6417 | ||
982697a4 | 6418 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6419 | } |
6420 | \f | |
c6a93eb7 | 6421 | struct ofpbuf * |
de0f3156 SH |
6422 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6423 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6424 | { |
de0f3156 | 6425 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6426 | struct ofpbuf *msg; |
6427 | size_t size; | |
6428 | ||
982697a4 | 6429 | size = po->ofpacts_len; |
c6a93eb7 BP |
6430 | if (po->buffer_id == UINT32_MAX) { |
6431 | size += po->packet_len; | |
6432 | } | |
6433 | ||
de0f3156 SH |
6434 | switch (ofp_version) { |
6435 | case OFP10_VERSION: { | |
31a9e63f | 6436 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6437 | size_t actions_ofs; |
6438 | ||
6439 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6440 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6441 | actions_ofs = msg->size; |
e3f8f887 JR |
6442 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6443 | ofp_version); | |
de0f3156 | 6444 | |
6fd6ed71 | 6445 | opo = msg->msg; |
de0f3156 | 6446 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6447 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6448 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6449 | break; |
6450 | } | |
f25d0cf3 | 6451 | |
de0f3156 | 6452 | case OFP11_VERSION: |
2e1ae200 | 6453 | case OFP12_VERSION: |
c37c0382 | 6454 | case OFP13_VERSION: |
42dccab5 BP |
6455 | case OFP14_VERSION: |
6456 | case OFP15_VERSION: { | |
7c1b1a0d SH |
6457 | struct ofp11_packet_out *opo; |
6458 | size_t len; | |
6459 | ||
6460 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6461 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6462 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6463 | ofp_version); | |
6fd6ed71 | 6464 | opo = msg->msg; |
7c1b1a0d SH |
6465 | opo->buffer_id = htonl(po->buffer_id); |
6466 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6467 | opo->actions_len = htons(len); | |
6468 | break; | |
6469 | } | |
6470 | ||
de0f3156 | 6471 | default: |
428b2edd | 6472 | OVS_NOT_REACHED(); |
de0f3156 | 6473 | } |
f25d0cf3 | 6474 | |
c6a93eb7 BP |
6475 | if (po->buffer_id == UINT32_MAX) { |
6476 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6477 | } | |
f25d0cf3 | 6478 | |
982697a4 | 6479 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6480 | |
6481 | return msg; | |
6482 | } | |
d1e2cf21 | 6483 | \f |
fa37b408 BP |
6484 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6485 | struct ofpbuf * | |
1a126c0c | 6486 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6487 | { |
1a126c0c | 6488 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6489 | htonl(0), 0); |
fa37b408 BP |
6490 | } |
6491 | ||
6492 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6493 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6494 | struct ofpbuf * | |
6495 | make_echo_reply(const struct ofp_header *rq) | |
6496 | { | |
982697a4 BP |
6497 | struct ofpbuf rq_buf; |
6498 | struct ofpbuf *reply; | |
6499 | ||
6500 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
6501 | ofpraw_pull_assert(&rq_buf); | |
6502 | ||
6fd6ed71 PS |
6503 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); |
6504 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
982697a4 | 6505 | return reply; |
fa37b408 BP |
6506 | } |
6507 | ||
efb80167 | 6508 | struct ofpbuf * |
a0ae0b6e | 6509 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6510 | { |
a0ae0b6e SH |
6511 | enum ofpraw type; |
6512 | ||
6513 | switch (ofp_version) { | |
42dccab5 | 6514 | case OFP15_VERSION: |
c37c0382 | 6515 | case OFP14_VERSION: |
2e1ae200 | 6516 | case OFP13_VERSION: |
a0ae0b6e SH |
6517 | case OFP12_VERSION: |
6518 | case OFP11_VERSION: | |
6519 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6520 | break; | |
6521 | ||
6522 | case OFP10_VERSION: | |
6523 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6524 | break; | |
6525 | ||
6526 | default: | |
428b2edd | 6527 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6528 | } |
6529 | ||
6530 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6531 | } |
6532 | ||
7257b535 | 6533 | const char * |
ad99e2ed | 6534 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6535 | { |
ad99e2ed BP |
6536 | switch (frag) { |
6537 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6538 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6539 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6540 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6541 | } |
6542 | ||
428b2edd | 6543 | OVS_NOT_REACHED(); |
7257b535 BP |
6544 | } |
6545 | ||
6546 | bool | |
ad99e2ed BP |
6547 | ofputil_frag_handling_from_string(const char *s, |
6548 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6549 | { |
6550 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6551 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6552 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6553 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6554 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6555 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6556 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6557 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6558 | } else { |
6559 | return false; | |
6560 | } | |
6561 | return true; | |
6562 | } | |
6563 | ||
7b7503ea BP |
6564 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6565 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6566 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6567 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6568 | * |
6569 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6570 | enum ofperr | |
4e022ec0 | 6571 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6572 | { |
6573 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6574 | ||
4e022ec0 AW |
6575 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6576 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6577 | return 0; |
4e022ec0 AW |
6578 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6579 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6580 | return 0; |
6581 | } else { | |
bc146369 | 6582 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6583 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6584 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6585 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6586 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6587 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6588 | } | |
6589 | } | |
6590 | ||
6591 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6592 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6593 | * | |
6594 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6595 | ovs_be32 | |
4e022ec0 | 6596 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6597 | { |
4e022ec0 AW |
6598 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6599 | ? ofp_to_u16(ofp10_port) | |
6600 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6601 | } |
6602 | ||
39dc9082 BP |
6603 | #define OFPUTIL_NAMED_PORTS \ |
6604 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6605 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6606 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6607 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6608 | OFPUTIL_NAMED_PORT(ALL) \ | |
6609 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6610 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6611 | OFPUTIL_NAMED_PORT(ANY) \ |
6612 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6613 | |
6614 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6615 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6616 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6617 | OFPUTIL_NAMED_PORT(NONE) |
6618 | ||
8010100b BP |
6619 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6620 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6621 | * (e.g. "LOCAL"). | |
c6100d92 | 6622 | * |
8010100b BP |
6623 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6624 | * or name. The caller should issue an error message in this case, because | |
6625 | * this function usually does not. (This gives the caller an opportunity to | |
6626 | * look up the port name another way, e.g. by contacting the switch and listing | |
6627 | * the names of all its ports). | |
c6100d92 BP |
6628 | * |
6629 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6630 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6631 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6632 | bool |
4e022ec0 | 6633 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6634 | { |
5b23ff7e | 6635 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6636 | |
5b23ff7e JR |
6637 | if (*s == '-') { |
6638 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6639 | return false; | |
6640 | } | |
8010100b | 6641 | *portp = 0; |
c6100d92 | 6642 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6643 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6644 | /* Pass. */ | |
6645 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6646 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6647 | "be translated to %u when talking to an OF1.1 or " | |
6648 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6649 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6650 | char name[OFP_MAX_PORT_NAME_LEN]; |
6651 | ||
6652 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6653 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6654 | "for compatibility with OpenFlow 1.1 and later", | |
6655 | name, port32); | |
4e022ec0 | 6656 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6657 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6658 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6659 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6660 | return false; |
c6100d92 | 6661 | } else { |
4e022ec0 | 6662 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6663 | } |
4e022ec0 AW |
6664 | |
6665 | *portp = u16_to_ofp(port32); | |
6666 | return true; | |
c6100d92 BP |
6667 | } else { |
6668 | struct pair { | |
6669 | const char *name; | |
4e022ec0 | 6670 | ofp_port_t value; |
c6100d92 BP |
6671 | }; |
6672 | static const struct pair pairs[] = { | |
39dc9082 | 6673 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6674 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6675 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6676 | }; |
6677 | const struct pair *p; | |
39dc9082 | 6678 | |
c6100d92 BP |
6679 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6680 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6681 | *portp = p->value; |
6682 | return true; | |
c6100d92 | 6683 | } |
39dc9082 | 6684 | } |
8010100b | 6685 | return false; |
39dc9082 | 6686 | } |
39dc9082 BP |
6687 | } |
6688 | ||
6689 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6690 | * Most ports' string representation is just the port number, but for special | |
6691 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6692 | void | |
4e022ec0 | 6693 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6694 | { |
28b11432 BP |
6695 | char name[OFP_MAX_PORT_NAME_LEN]; |
6696 | ||
6697 | ofputil_port_to_string(port, name, sizeof name); | |
6698 | ds_put_cstr(s, name); | |
6699 | } | |
39dc9082 | 6700 | |
28b11432 BP |
6701 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6702 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6703 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6704 | * by name, e.g. "LOCAL". */ | |
6705 | void | |
6706 | ofputil_port_to_string(ofp_port_t port, | |
6707 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6708 | { | |
39dc9082 | 6709 | switch (port) { |
28b11432 BP |
6710 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6711 | case OFPP_##NAME: \ | |
6712 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6713 | break; | |
39dc9082 BP |
6714 | OFPUTIL_NAMED_PORTS |
6715 | #undef OFPUTIL_NAMED_PORT | |
6716 | ||
6717 | default: | |
28b11432 BP |
6718 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6719 | break; | |
39dc9082 | 6720 | } |
39dc9082 BP |
6721 | } |
6722 | ||
7395c052 NZ |
6723 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6724 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6725 | * (either "ANY" or "ALL"). | |
6726 | * | |
6727 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6728 | * name. */ | |
6729 | bool | |
6730 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6731 | { | |
6732 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 6733 | *group_idp = OFPG_ANY; |
7395c052 | 6734 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 6735 | *group_idp = OFPG_ALL; |
7395c052 NZ |
6736 | } else if (!str_to_uint(s, 10, group_idp)) { |
6737 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6738 | "32-bit nonnegative integers or the keywords ANY or " | |
6739 | "ALL.)", s); | |
6740 | return false; | |
6741 | } | |
6742 | ||
6743 | return true; | |
6744 | } | |
6745 | ||
6746 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6747 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 6748 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
6749 | void |
6750 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6751 | { | |
6752 | char name[MAX_GROUP_NAME_LEN]; | |
6753 | ||
6754 | ofputil_group_to_string(group_id, name, sizeof name); | |
6755 | ds_put_cstr(s, name); | |
6756 | } | |
6757 | ||
6758 | ||
6759 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6760 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 6761 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
6762 | * by name, e.g. "ALL". */ |
6763 | void | |
6764 | ofputil_group_to_string(uint32_t group_id, | |
6765 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6766 | { | |
6767 | switch (group_id) { | |
30ef36c6 | 6768 | case OFPG_ALL: |
7395c052 NZ |
6769 | ovs_strlcpy(namebuf, "ALL", bufsize); |
6770 | break; | |
6771 | ||
30ef36c6 | 6772 | case OFPG_ANY: |
7395c052 NZ |
6773 | ovs_strlcpy(namebuf, "ANY", bufsize); |
6774 | break; | |
6775 | ||
6776 | default: | |
6777 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6778 | break; | |
6779 | } | |
6780 | } | |
6781 | ||
2be393ed JP |
6782 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6783 | * 'ofp_version', tries to pull the first element from the array. If | |
6784 | * successful, initializes '*pp' with an abstract representation of the | |
6785 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6786 | * On an error, returns a positive OFPERR_* value. */ | |
6787 | int | |
2e3fa633 | 6788 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6789 | struct ofputil_phy_port *pp) |
6790 | { | |
8c3cc785 BP |
6791 | memset(pp, 0, sizeof *pp); |
6792 | ||
2e3fa633 SH |
6793 | switch (ofp_version) { |
6794 | case OFP10_VERSION: { | |
2be393ed JP |
6795 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6796 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6797 | } |
6798 | case OFP11_VERSION: | |
2e1ae200 JR |
6799 | case OFP12_VERSION: |
6800 | case OFP13_VERSION: { | |
2be393ed JP |
6801 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6802 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6803 | } | |
c37c0382 | 6804 | case OFP14_VERSION: |
42dccab5 | 6805 | case OFP15_VERSION: |
6fd6ed71 | 6806 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6807 | default: |
428b2edd | 6808 | OVS_NOT_REACHED(); |
2e3fa633 | 6809 | } |
2be393ed JP |
6810 | } |
6811 | ||
3cbd9931 | 6812 | static void |
81a76618 | 6813 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6814 | { |
6815 | enum { | |
6816 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6817 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6818 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6819 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6820 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6821 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6822 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6823 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6824 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6825 | } may_match; |
6826 | ||
6827 | struct flow_wildcards wc; | |
6828 | ||
6829 | /* Figure out what fields may be matched. */ | |
81a76618 | 6830 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6831 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6832 | if (match->flow.nw_proto == IPPROTO_TCP || |
6833 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6834 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6835 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6836 | may_match |= MAY_TP_ADDR; |
6837 | } | |
81a76618 | 6838 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6839 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6840 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6841 | match->flow.nw_proto == IPPROTO_UDP || |
6842 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6843 | may_match |= MAY_TP_ADDR; |
81a76618 | 6844 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6845 | may_match |= MAY_TP_ADDR; |
81a76618 | 6846 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6847 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6848 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6849 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6850 | } | |
6851 | } | |
8087f5ff MM |
6852 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6853 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6854 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6855 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6856 | may_match = MAY_MPLS; | |
1c0b7503 | 6857 | } else { |
b459a924 BP |
6858 | may_match = 0; |
6859 | } | |
6860 | ||
6861 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6862 | wc = match->wc; |
b459a924 | 6863 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6864 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6865 | } |
6866 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6867 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6868 | } |
6869 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6870 | wc.masks.nw_proto = 0; |
b459a924 | 6871 | } |
9e44d715 | 6872 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6873 | wc.masks.nw_tos = 0; |
6874 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6875 | } |
6876 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 6877 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
6878 | } |
6879 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 6880 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 6881 | } |
d78477ec | 6882 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6883 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6884 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6885 | } |
6886 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6887 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6888 | } |
b02475c5 | 6889 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6890 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6891 | } |
b459a924 BP |
6892 | |
6893 | /* Log any changes. */ | |
81a76618 | 6894 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6895 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6896 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6897 | |
81a76618 BP |
6898 | match->wc = wc; |
6899 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6900 | |
6901 | if (log) { | |
81a76618 | 6902 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6903 | VLOG_INFO("normalization changed ofp_match, details:"); |
6904 | VLOG_INFO(" pre: %s", pre); | |
6905 | VLOG_INFO("post: %s", post); | |
6906 | free(pre); | |
6907 | free(post); | |
6908 | } | |
fa37b408 | 6909 | } |
3f09c339 | 6910 | } |
26c112c2 | 6911 | |
81a76618 | 6912 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6913 | * |
6914 | * 1. If the type of level N is known, then only the valid fields for that | |
6915 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6916 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6917 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6918 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6919 | * IPv4 flow. |
6920 | * | |
6921 | * 2. If the type of level N is not known (or not understood by Open | |
6922 | * vSwitch), then no fields at all for that level may be specified. For | |
6923 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6924 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6925 | * SCTP flow. |
6926 | * | |
81a76618 | 6927 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6928 | * message. */ |
6929 | void | |
81a76618 | 6930 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6931 | { |
81a76618 | 6932 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6933 | } |
6934 | ||
81a76618 BP |
6935 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6936 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6937 | * sense for use on flows received from elsewhere (so that a bug in the program |
6938 | * that sent them can be reported and corrected). */ | |
6939 | void | |
81a76618 | 6940 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6941 | { |
81a76618 | 6942 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6943 | } |
6944 | ||
0ff22822 BP |
6945 | /* Parses a key or a key-value pair from '*stringp'. |
6946 | * | |
6947 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6948 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6949 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6950 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6951 | * terminators. Returns true. | |
6952 | * | |
6953 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6954 | * NULL and returns false. */ | |
6955 | bool | |
6956 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6957 | { | |
6958 | char *pos, *key, *value; | |
6959 | size_t key_len; | |
6960 | ||
6961 | pos = *stringp; | |
6962 | pos += strspn(pos, ", \t\r\n"); | |
6963 | if (*pos == '\0') { | |
6964 | *keyp = *valuep = NULL; | |
6965 | return false; | |
6966 | } | |
6967 | ||
6968 | key = pos; | |
6969 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6970 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6971 | /* The value can be separated by a colon. */ | |
6972 | size_t value_len; | |
6973 | ||
6974 | value = key + key_len + 1; | |
6975 | value_len = strcspn(value, ", \t\r\n"); | |
6976 | pos = value + value_len + (value[value_len] != '\0'); | |
6977 | value[value_len] = '\0'; | |
6978 | } else if (key[key_len] == '(') { | |
6979 | /* The value can be surrounded by balanced parentheses. The outermost | |
6980 | * set of parentheses is removed. */ | |
6981 | int level = 1; | |
6982 | size_t value_len; | |
6983 | ||
6984 | value = key + key_len + 1; | |
6985 | for (value_len = 0; level > 0; value_len++) { | |
6986 | switch (value[value_len]) { | |
6987 | case '\0': | |
33cadc50 BP |
6988 | level = 0; |
6989 | break; | |
0ff22822 BP |
6990 | |
6991 | case '(': | |
6992 | level++; | |
6993 | break; | |
6994 | ||
6995 | case ')': | |
6996 | level--; | |
6997 | break; | |
6998 | } | |
6999 | } | |
7000 | value[value_len - 1] = '\0'; | |
7001 | pos = value + value_len; | |
7002 | } else { | |
7003 | /* There might be no value at all. */ | |
7004 | value = key + key_len; /* Will become the empty string below. */ | |
7005 | pos = key + key_len + (key[key_len] != '\0'); | |
7006 | } | |
7007 | key[key_len] = '\0'; | |
7008 | ||
7009 | *stringp = pos; | |
7010 | *keyp = key; | |
7011 | *valuep = value; | |
7012 | return true; | |
7013 | } | |
f8e4867e SH |
7014 | |
7015 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7016 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7017 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7018 | struct ofpbuf * | |
4e022ec0 | 7019 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7020 | { |
7021 | struct ofpbuf *request; | |
7022 | ||
7023 | switch (ofp_version) { | |
7024 | case OFP10_VERSION: { | |
7025 | struct ofp10_port_stats_request *req; | |
7026 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7027 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7028 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7029 | break; |
7030 | } | |
7031 | case OFP11_VERSION: | |
2e1ae200 | 7032 | case OFP12_VERSION: |
c37c0382 | 7033 | case OFP13_VERSION: |
42dccab5 BP |
7034 | case OFP14_VERSION: |
7035 | case OFP15_VERSION: { | |
f8e4867e SH |
7036 | struct ofp11_port_stats_request *req; |
7037 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7038 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7039 | req->port_no = ofputil_port_to_ofp11(port); | |
7040 | break; | |
7041 | } | |
7042 | default: | |
428b2edd | 7043 | OVS_NOT_REACHED(); |
f8e4867e SH |
7044 | } |
7045 | ||
7046 | return request; | |
7047 | } | |
7048 | ||
7049 | static void | |
7050 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7051 | struct ofp10_port_stats *ps10) | |
7052 | { | |
4e022ec0 | 7053 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7054 | memset(ps10->pad, 0, sizeof ps10->pad); |
7055 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7056 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7057 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7058 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7059 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7060 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7061 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7062 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7063 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7064 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7065 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7066 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7067 | } | |
7068 | ||
7069 | static void | |
7070 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7071 | struct ofp11_port_stats *ps11) | |
7072 | { | |
7073 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7074 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7075 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7076 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7077 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7078 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7079 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7080 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7081 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7082 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7083 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7084 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7085 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7086 | ps11->collisions = htonll(ops->stats.collisions); | |
7087 | } | |
7088 | ||
2e1ae200 JR |
7089 | static void |
7090 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7091 | struct ofp13_port_stats *ps13) | |
7092 | { | |
7093 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7094 | ps13->duration_sec = htonl(ops->duration_sec); |
7095 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7096 | } |
7097 | ||
5469537b BP |
7098 | static void |
7099 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7100 | struct ovs_list *replies) |
5469537b BP |
7101 | { |
7102 | struct ofp14_port_stats_prop_ethernet *eth; | |
7103 | struct ofp14_port_stats *ps14; | |
7104 | struct ofpbuf *reply; | |
7105 | ||
7106 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7107 | ||
7108 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7109 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7110 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7111 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7112 | ps14->duration_sec = htonl(ops->duration_sec); | |
7113 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7114 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7115 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7116 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7117 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7118 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7119 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7120 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7121 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7122 | ||
7123 | eth = ofpbuf_put_uninit(reply, sizeof *eth); | |
7124 | eth->type = htons(OFPPSPT14_ETHERNET); | |
7125 | eth->length = htons(sizeof *eth); | |
7126 | memset(eth->pad, 0, sizeof eth->pad); | |
7127 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7128 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7129 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7130 | eth->collisions = htonll(ops->stats.collisions); | |
7131 | } | |
2e1ae200 | 7132 | |
ad4c35fe | 7133 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7134 | void |
ca6ba700 | 7135 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7136 | const struct ofputil_port_stats *ops) |
7137 | { | |
e28ac5cf | 7138 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7139 | case OFP13_VERSION: { |
7140 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7141 | ofputil_port_stats_to_ofp13(ops, reply); | |
7142 | break; | |
7143 | } | |
f8e4867e SH |
7144 | case OFP12_VERSION: |
7145 | case OFP11_VERSION: { | |
7146 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7147 | ofputil_port_stats_to_ofp11(ops, reply); | |
7148 | break; | |
7149 | } | |
7150 | ||
7151 | case OFP10_VERSION: { | |
7152 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7153 | ofputil_port_stats_to_ofp10(ops, reply); | |
7154 | break; | |
7155 | } | |
7156 | ||
c37c0382 | 7157 | case OFP14_VERSION: |
42dccab5 | 7158 | case OFP15_VERSION: |
5469537b | 7159 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7160 | break; |
7161 | ||
f8e4867e | 7162 | default: |
428b2edd | 7163 | OVS_NOT_REACHED(); |
f8e4867e SH |
7164 | } |
7165 | } | |
7166 | ||
7167 | static enum ofperr | |
7168 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7169 | const struct ofp10_port_stats *ps10) | |
7170 | { | |
7171 | memset(ops, 0, sizeof *ops); | |
7172 | ||
4e022ec0 | 7173 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7174 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7175 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7176 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7177 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7178 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7179 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7180 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7181 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7182 | ops->stats.rx_frame_errors = | |
7183 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7184 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7185 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7186 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7187 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7188 | |
7189 | return 0; | |
7190 | } | |
7191 | ||
7192 | static enum ofperr | |
7193 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7194 | const struct ofp11_port_stats *ps11) | |
7195 | { | |
7196 | enum ofperr error; | |
7197 | ||
7198 | memset(ops, 0, sizeof *ops); | |
7199 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7200 | if (error) { | |
7201 | return error; | |
7202 | } | |
7203 | ||
7204 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7205 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7206 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7207 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7208 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7209 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7210 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7211 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7212 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7213 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7214 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7215 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7216 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7217 | |
7218 | return 0; | |
7219 | } | |
7220 | ||
2e1ae200 JR |
7221 | static enum ofperr |
7222 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7223 | const struct ofp13_port_stats *ps13) | |
7224 | { | |
65e0be10 | 7225 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7226 | if (!error) { |
65e0be10 BP |
7227 | ops->duration_sec = ntohl(ps13->duration_sec); |
7228 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7229 | } |
2e1ae200 JR |
7230 | return error; |
7231 | } | |
7232 | ||
5469537b BP |
7233 | static enum ofperr |
7234 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7235 | struct ofputil_port_stats *ops) | |
be0c30df | 7236 | { |
6fd6ed71 | 7237 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7238 | |
6fd6ed71 | 7239 | if (payload->size != sizeof *eth) { |
5469537b BP |
7240 | return OFPERR_OFPBPC_BAD_LEN; |
7241 | } | |
7242 | ||
7243 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7244 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7245 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7246 | ops->stats.collisions = ntohll(eth->collisions); | |
7247 | ||
7248 | return 0; | |
7249 | } | |
7250 | ||
7251 | static enum ofperr | |
7252 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7253 | struct ofpbuf *msg) | |
7254 | { | |
7255 | const struct ofp14_port_stats *ps14; | |
7256 | struct ofpbuf properties; | |
7257 | enum ofperr error; | |
7258 | size_t len; | |
7259 | ||
7260 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
7261 | if (!ps14) { | |
7262 | return OFPERR_OFPBRC_BAD_LEN; | |
7263 | } | |
7264 | ||
7265 | len = ntohs(ps14->length); | |
6fd6ed71 | 7266 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7267 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7268 | } |
5469537b BP |
7269 | len -= sizeof *ps14; |
7270 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
7271 | ||
7272 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
7273 | if (error) { | |
7274 | return error; | |
7275 | } | |
7276 | ||
7277 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7278 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7279 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7280 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7281 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7282 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7283 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7284 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7285 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7286 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7287 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7288 | ops->stats.rx_over_errors = UINT64_MAX; | |
7289 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7290 | ops->stats.collisions = UINT64_MAX; | |
7291 | ||
6fd6ed71 | 7292 | while (properties.size > 0) { |
5469537b BP |
7293 | struct ofpbuf payload; |
7294 | enum ofperr error; | |
7295 | uint16_t type; | |
7296 | ||
7297 | error = ofputil_pull_property(&properties, &payload, &type); | |
7298 | if (error) { | |
7299 | return error; | |
7300 | } | |
7301 | ||
7302 | switch (type) { | |
7303 | case OFPPSPT14_ETHERNET: | |
7304 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7305 | break; | |
7306 | ||
7307 | default: | |
7308 | log_property(true, "unknown port stats property %"PRIu16, type); | |
7309 | error = 0; | |
7310 | break; | |
7311 | } | |
7312 | ||
7313 | if (error) { | |
7314 | return error; | |
7315 | } | |
7316 | } | |
7317 | ||
7318 | return 0; | |
be0c30df | 7319 | } |
2e1ae200 | 7320 | |
f8e4867e SH |
7321 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7322 | * message 'oh'. */ | |
7323 | size_t | |
7324 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7325 | { | |
5469537b | 7326 | struct ofputil_port_stats ps; |
f8e4867e | 7327 | struct ofpbuf b; |
5469537b | 7328 | size_t n = 0; |
f8e4867e SH |
7329 | |
7330 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7331 | ofpraw_pull_assert(&b); | |
5469537b BP |
7332 | while (!ofputil_decode_port_stats(&ps, &b)) { |
7333 | n++; | |
7334 | } | |
7335 | return n; | |
f8e4867e SH |
7336 | } |
7337 | ||
7338 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7339 | * ofputil_port_stats in 'ps'. | |
7340 | * | |
7341 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7342 | * message. Calling this function multiple times for a single 'msg' iterates | |
7343 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7344 | * null and not modify them between calls. | |
7345 | * | |
7346 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7347 | * otherwise a positive errno value. */ | |
7348 | int | |
7349 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7350 | { | |
7351 | enum ofperr error; | |
7352 | enum ofpraw raw; | |
7353 | ||
6fd6ed71 | 7354 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7355 | : ofpraw_pull(&raw, msg)); |
7356 | if (error) { | |
7357 | return error; | |
7358 | } | |
7359 | ||
6fd6ed71 | 7360 | if (!msg->size) { |
f8e4867e | 7361 | return EOF; |
5469537b BP |
7362 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7363 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7364 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7365 | const struct ofp13_port_stats *ps13; | |
7366 | ||
7367 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7368 | if (!ps13) { | |
7369 | goto bad_len; | |
7370 | } | |
7371 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7372 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7373 | const struct ofp11_port_stats *ps11; | |
7374 | ||
7375 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7376 | if (!ps11) { | |
2e1ae200 | 7377 | goto bad_len; |
f8e4867e SH |
7378 | } |
7379 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7380 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7381 | const struct ofp10_port_stats *ps10; | |
7382 | ||
7383 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7384 | if (!ps10) { | |
2e1ae200 | 7385 | goto bad_len; |
f8e4867e SH |
7386 | } |
7387 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7388 | } else { | |
428b2edd | 7389 | OVS_NOT_REACHED(); |
f8e4867e SH |
7390 | } |
7391 | ||
2e1ae200 | 7392 | bad_len: |
437d0d22 | 7393 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7394 | "bytes at end", msg->size); |
2e1ae200 | 7395 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7396 | } |
7397 | ||
7398 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7399 | * port number and stores the latter in '*ofp10_port'. | |
7400 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7401 | enum ofperr | |
7402 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7403 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7404 | { |
7405 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7406 | case OFP15_VERSION: |
5469537b | 7407 | case OFP14_VERSION: |
2e1ae200 | 7408 | case OFP13_VERSION: |
f8e4867e SH |
7409 | case OFP12_VERSION: |
7410 | case OFP11_VERSION: { | |
7411 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7412 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7413 | } | |
7414 | ||
7415 | case OFP10_VERSION: { | |
7416 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7417 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7418 | return 0; |
7419 | } | |
7420 | ||
7421 | default: | |
428b2edd | 7422 | OVS_NOT_REACHED(); |
f8e4867e SH |
7423 | } |
7424 | } | |
64626975 | 7425 | |
7395c052 NZ |
7426 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7427 | void | |
ca6ba700 | 7428 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7429 | { |
5f03c983 | 7430 | struct ofputil_bucket *bucket; |
7395c052 | 7431 | |
5f03c983 | 7432 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7433 | free(bucket->ofpacts); |
7434 | free(bucket); | |
7435 | } | |
7436 | } | |
7437 | ||
103b4866 SH |
7438 | /* Clones 'bucket' and its ofpacts data */ |
7439 | static struct ofputil_bucket * | |
7440 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7441 | { | |
7442 | struct ofputil_bucket *new; | |
7443 | ||
7444 | new = xmemdup(bucket, sizeof *bucket); | |
7445 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7446 | ||
7447 | return new; | |
7448 | } | |
7449 | ||
7450 | /* Clones each of the buckets in the list 'src' appending them | |
7451 | * in turn to 'dest' which should be an initialised list. | |
7452 | * An exception is that if the pointer value of a bucket in 'src' | |
7453 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7454 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7455 | * be cloned and appended to 'dest'. */ | |
7456 | void | |
ca6ba700 | 7457 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7458 | const struct ofputil_bucket *skip) |
7459 | { | |
7460 | struct ofputil_bucket *bucket; | |
7461 | ||
7462 | LIST_FOR_EACH (bucket, list_node, src) { | |
7463 | struct ofputil_bucket *new_bucket; | |
7464 | ||
7465 | if (bucket == skip) { | |
7466 | continue; | |
7467 | } | |
7468 | ||
7469 | new_bucket = ofputil_bucket_clone_data(bucket); | |
7470 | list_push_back(dest, &new_bucket->list_node); | |
7471 | } | |
7472 | } | |
7473 | ||
7474 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7475 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7476 | struct ofputil_bucket * | |
ca6ba700 | 7477 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7478 | { |
7479 | struct ofputil_bucket *bucket; | |
7480 | ||
7481 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7482 | return NULL; | |
7483 | } | |
7484 | ||
7485 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7486 | if (bucket->bucket_id == bucket_id) { | |
7487 | return bucket; | |
7488 | } | |
7489 | } | |
7490 | ||
7491 | return NULL; | |
7492 | } | |
7493 | ||
7494 | /* Returns true if more than one bucket in the list 'buckets' | |
7495 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7496 | bool |
ca6ba700 | 7497 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7498 | { |
7499 | struct ofputil_bucket *i, *j; | |
7500 | ||
7501 | LIST_FOR_EACH (i, list_node, buckets) { | |
7502 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7503 | if (i == j) { | |
7504 | break; | |
7505 | } | |
7506 | if (i->bucket_id == j->bucket_id) { | |
7507 | return true; | |
7508 | } | |
7509 | } | |
7510 | } | |
7511 | ||
7512 | return false; | |
7513 | } | |
7514 | ||
103b4866 SH |
7515 | /* Returns the bucket at the front of the list 'buckets'. |
7516 | * Undefined if 'buckets is empty. */ | |
7517 | struct ofputil_bucket * | |
ca6ba700 | 7518 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7519 | { |
7520 | static struct ofputil_bucket *bucket; | |
7521 | ||
7522 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
7523 | ||
7524 | return bucket; | |
7525 | } | |
7526 | ||
7527 | /* Returns the bucket at the back of the list 'buckets'. | |
7528 | * Undefined if 'buckets is empty. */ | |
7529 | struct ofputil_bucket * | |
ca6ba700 | 7530 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7531 | { |
7532 | static struct ofputil_bucket *bucket; | |
7533 | ||
7534 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
7535 | ||
7536 | return bucket; | |
7537 | } | |
7538 | ||
7395c052 NZ |
7539 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7540 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7541 | * for all groups.) | |
7542 | * | |
7543 | * Group statistics include packet and byte counts for each group. */ | |
7544 | struct ofpbuf * | |
7545 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7546 | uint32_t group_id) | |
7547 | { | |
7548 | struct ofpbuf *request; | |
7549 | ||
7550 | switch (ofp_version) { | |
7551 | case OFP10_VERSION: | |
7552 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7553 | "(\'-O OpenFlow11\')"); | |
7554 | case OFP11_VERSION: | |
7555 | case OFP12_VERSION: | |
c37c0382 | 7556 | case OFP13_VERSION: |
42dccab5 BP |
7557 | case OFP14_VERSION: |
7558 | case OFP15_VERSION: { | |
7395c052 NZ |
7559 | struct ofp11_group_stats_request *req; |
7560 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7561 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7562 | req->group_id = htonl(group_id); | |
7563 | break; | |
7564 | } | |
7565 | default: | |
428b2edd | 7566 | OVS_NOT_REACHED(); |
7395c052 NZ |
7567 | } |
7568 | ||
7569 | return request; | |
7570 | } | |
7571 | ||
bc65c25a SH |
7572 | void |
7573 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7574 | { | |
7575 | ofputil_bucket_list_destroy(&gd->buckets); | |
7576 | free(&gd->props.fields); | |
7577 | } | |
7578 | ||
19187a71 BP |
7579 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7580 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7581 | * requested. */ | |
7582 | uint32_t | |
7583 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7584 | { | |
7585 | struct ofpbuf request; | |
7586 | enum ofpraw raw; | |
7587 | ||
7588 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
7589 | raw = ofpraw_pull_assert(&request); | |
7590 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
7591 | return OFPG_ALL; | |
7592 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7593 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7594 | return ntohl(*group_id); | |
7595 | } else { | |
7596 | OVS_NOT_REACHED(); | |
7597 | } | |
7598 | } | |
7599 | ||
7395c052 | 7600 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7601 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7602 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7603 | * groups). | |
7395c052 NZ |
7604 | * |
7605 | * Group descriptions include the bucket and action configuration for each | |
7606 | * group. */ | |
7607 | struct ofpbuf * | |
19187a71 BP |
7608 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7609 | uint32_t group_id) | |
7395c052 NZ |
7610 | { |
7611 | struct ofpbuf *request; | |
7612 | ||
7613 | switch (ofp_version) { | |
7614 | case OFP10_VERSION: | |
7615 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7616 | "(\'-O OpenFlow11\')"); | |
7617 | case OFP11_VERSION: | |
7618 | case OFP12_VERSION: | |
c37c0382 AC |
7619 | case OFP13_VERSION: |
7620 | case OFP14_VERSION: | |
19187a71 BP |
7621 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7622 | ofp_version, 0); | |
7623 | break; | |
d4d3f33e MT |
7624 | case OFP15_VERSION:{ |
7625 | struct ofp15_group_desc_request *req; | |
19187a71 BP |
7626 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7627 | ofp_version, 0); | |
d4d3f33e MT |
7628 | req = ofpbuf_put_zeros(request, sizeof *req); |
7629 | req->group_id = htonl(group_id); | |
7395c052 | 7630 | break; |
d4d3f33e | 7631 | } |
7395c052 | 7632 | default: |
428b2edd | 7633 | OVS_NOT_REACHED(); |
7395c052 NZ |
7634 | } |
7635 | ||
7636 | return request; | |
7637 | } | |
7638 | ||
dcbe78ad | 7639 | static void |
63759e71 AZ |
7640 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7641 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7642 | { |
7395c052 NZ |
7643 | int i; |
7644 | ||
dcbe78ad AZ |
7645 | for (i = 0; i < gs->n_buckets; i++) { |
7646 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7647 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7648 | } |
7395c052 NZ |
7649 | } |
7650 | ||
7651 | static void | |
dcbe78ad | 7652 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7653 | struct ofp11_group_stats *gs11, size_t length, |
7654 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7655 | { |
63759e71 AZ |
7656 | memset(gs11, 0, sizeof *gs11); |
7657 | gs11->length = htons(length); | |
7658 | gs11->group_id = htonl(gs->group_id); | |
7659 | gs11->ref_count = htonl(gs->ref_count); | |
7660 | gs11->packet_count = htonll(gs->packet_count); | |
7661 | gs11->byte_count = htonll(gs->byte_count); | |
7662 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7663 | } |
7395c052 | 7664 | |
dcbe78ad AZ |
7665 | static void |
7666 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7667 | struct ofp13_group_stats *gs13, size_t length, |
7668 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7669 | { |
63759e71 | 7670 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7671 | gs13->duration_sec = htonl(gs->duration_sec); |
7672 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7673 | |
7395c052 NZ |
7674 | } |
7675 | ||
dcbe78ad | 7676 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7677 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7678 | * must have originally been initialized with ofpmp_init(). */ | |
7679 | void | |
ca6ba700 | 7680 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 7681 | const struct ofputil_group_stats *gs) |
7395c052 | 7682 | { |
63759e71 AZ |
7683 | size_t bucket_counter_size; |
7684 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7685 | size_t length; |
7395c052 | 7686 | |
63759e71 AZ |
7687 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7688 | ||
e28ac5cf | 7689 | switch (ofpmp_version(replies)) { |
7395c052 | 7690 | case OFP11_VERSION: |
dcbe78ad | 7691 | case OFP12_VERSION:{ |
63759e71 | 7692 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7693 | |
63759e71 AZ |
7694 | length = sizeof *gs11 + bucket_counter_size; |
7695 | gs11 = ofpmp_append(replies, length); | |
7696 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7697 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7698 | break; |
7699 | } | |
7395c052 NZ |
7700 | |
7701 | case OFP13_VERSION: | |
42dccab5 BP |
7702 | case OFP14_VERSION: |
7703 | case OFP15_VERSION: { | |
63759e71 | 7704 | struct ofp13_group_stats *gs13; |
7395c052 | 7705 | |
63759e71 AZ |
7706 | length = sizeof *gs13 + bucket_counter_size; |
7707 | gs13 = ofpmp_append(replies, length); | |
7708 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7709 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7710 | break; |
7711 | } | |
c37c0382 | 7712 | |
7395c052 NZ |
7713 | case OFP10_VERSION: |
7714 | default: | |
428b2edd | 7715 | OVS_NOT_REACHED(); |
7395c052 NZ |
7716 | } |
7717 | } | |
7395c052 NZ |
7718 | /* Returns an OpenFlow group features request for OpenFlow version |
7719 | * 'ofp_version'. */ | |
7720 | struct ofpbuf * | |
7721 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7722 | { | |
7723 | struct ofpbuf *request = NULL; | |
7724 | ||
7725 | switch (ofp_version) { | |
7726 | case OFP10_VERSION: | |
7727 | case OFP11_VERSION: | |
7728 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7729 | "(\'-O OpenFlow12\')"); | |
7730 | case OFP12_VERSION: | |
c37c0382 AC |
7731 | case OFP13_VERSION: |
7732 | case OFP14_VERSION: | |
42dccab5 | 7733 | case OFP15_VERSION: |
7395c052 | 7734 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7735 | ofp_version, 0); |
7395c052 | 7736 | break; |
7395c052 | 7737 | default: |
428b2edd | 7738 | OVS_NOT_REACHED(); |
7395c052 NZ |
7739 | } |
7740 | ||
7741 | return request; | |
7742 | } | |
7743 | ||
7744 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7745 | * group features request 'request'. */ | |
7746 | struct ofpbuf * | |
7747 | ofputil_encode_group_features_reply( | |
7748 | const struct ofputil_group_features *features, | |
7749 | const struct ofp_header *request) | |
7750 | { | |
7751 | struct ofp12_group_features_stats *ogf; | |
7752 | struct ofpbuf *reply; | |
08d1e234 | 7753 | int i; |
7395c052 NZ |
7754 | |
7755 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7756 | request->version, request->xid, 0); | |
7757 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7758 | ogf->types = htonl(features->types); | |
7759 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7760 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7761 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7762 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7763 | request->version); | |
7764 | } | |
7395c052 NZ |
7765 | |
7766 | return reply; | |
7767 | } | |
7768 | ||
7769 | /* Decodes group features reply 'oh' into 'features'. */ | |
7770 | void | |
7771 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7772 | struct ofputil_group_features *features) | |
7773 | { | |
7774 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7775 | int i; |
7395c052 NZ |
7776 | |
7777 | features->types = ntohl(ogf->types); | |
7778 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7779 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7780 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7781 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7782 | ogf->actions[i], oh->version); | |
7783 | } | |
7395c052 NZ |
7784 | } |
7785 | ||
7786 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7787 | * group ID and stores the latter in '*group_id'. | |
7788 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7789 | enum ofperr | |
7790 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7791 | uint32_t *group_id) | |
7792 | { | |
7793 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7794 | *group_id = ntohl(gsr11->group_id); | |
7795 | return 0; | |
7796 | } | |
7797 | ||
7798 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7799 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7800 | * caller to eventually free. | |
7395c052 NZ |
7801 | * |
7802 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7803 | * Calling this function multiple times for a single 'msg' iterates through the | |
7804 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7805 | * not modify them between calls. | |
7806 | * | |
7807 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7808 | * otherwise a positive errno value. */ | |
7809 | int | |
7810 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7811 | struct ofputil_group_stats *gs) | |
7812 | { | |
7813 | struct ofp11_bucket_counter *obc; | |
7814 | struct ofp11_group_stats *ogs11; | |
7815 | enum ofpraw raw; | |
7816 | enum ofperr error; | |
7817 | size_t base_len; | |
7818 | size_t length; | |
7819 | size_t i; | |
7820 | ||
646b2a9c | 7821 | gs->bucket_stats = NULL; |
6fd6ed71 | 7822 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
7823 | : ofpraw_pull(&raw, msg)); |
7824 | if (error) { | |
7825 | return error; | |
7826 | } | |
7827 | ||
6fd6ed71 | 7828 | if (!msg->size) { |
7395c052 NZ |
7829 | return EOF; |
7830 | } | |
7831 | ||
7832 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7833 | base_len = sizeof *ogs11; | |
7834 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7835 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7836 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7837 | struct ofp13_group_stats *ogs13; | |
7838 | ||
7839 | base_len = sizeof *ogs13; | |
7840 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7841 | if (ogs13) { | |
7842 | ogs11 = &ogs13->gs; | |
7843 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7844 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7845 | } else { | |
7846 | ogs11 = NULL; | |
7847 | } | |
7848 | } else { | |
428b2edd | 7849 | OVS_NOT_REACHED(); |
7395c052 NZ |
7850 | } |
7851 | ||
7852 | if (!ogs11) { | |
437d0d22 | 7853 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7854 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7855 | return OFPERR_OFPBRC_BAD_LEN; |
7856 | } | |
7857 | length = ntohs(ogs11->length); | |
7858 | if (length < sizeof base_len) { | |
34582733 | 7859 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7860 | ofpraw_get_name(raw), length); |
7861 | return OFPERR_OFPBRC_BAD_LEN; | |
7862 | } | |
7863 | ||
7864 | gs->group_id = ntohl(ogs11->group_id); | |
7865 | gs->ref_count = ntohl(ogs11->ref_count); | |
7866 | gs->packet_count = ntohll(ogs11->packet_count); | |
7867 | gs->byte_count = ntohll(ogs11->byte_count); | |
7868 | ||
7869 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7870 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7871 | if (!obc) { | |
437d0d22 | 7872 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7873 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7874 | return OFPERR_OFPBRC_BAD_LEN; |
7875 | } | |
7876 | ||
646b2a9c | 7877 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7878 | for (i = 0; i < gs->n_buckets; i++) { |
7879 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7880 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7881 | } | |
7882 | ||
7883 | return 0; | |
7884 | } | |
7885 | ||
5097fee5 SH |
7886 | static void |
7887 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7888 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7889 | { | |
7890 | struct ofp11_bucket *ob; | |
7891 | size_t start; | |
7892 | ||
6fd6ed71 | 7893 | start = openflow->size; |
5097fee5 SH |
7894 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7895 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7896 | openflow, ofp_version); | |
7897 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7898 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
7899 | ob->weight = htons(bucket->weight); |
7900 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7901 | ob->watch_group = htonl(bucket->watch_group); | |
7902 | } | |
7903 | ||
18ac06d3 SH |
7904 | static void |
7905 | ofputil_put_ofp15_group_bucket_prop_weight(ovs_be16 weight, | |
7906 | struct ofpbuf *openflow) | |
7907 | { | |
7908 | size_t start_ofs; | |
7909 | struct ofp15_group_bucket_prop_weight *prop; | |
7910 | ||
7911 | start_ofs = start_property(openflow, OFPGBPT15_WEIGHT); | |
7912 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7913 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7914 | prop->weight = weight; | |
7915 | end_property(openflow, start_ofs); | |
7916 | } | |
7917 | ||
7918 | static void | |
7919 | ofputil_put_ofp15_group_bucket_prop_watch(ovs_be32 watch, uint16_t type, | |
7920 | struct ofpbuf *openflow) | |
7921 | { | |
7922 | size_t start_ofs; | |
7923 | struct ofp15_group_bucket_prop_watch *prop; | |
7924 | ||
7925 | start_ofs = start_property(openflow, type); | |
7926 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7927 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7928 | prop->watch = watch; | |
7929 | end_property(openflow, start_ofs); | |
7930 | } | |
7931 | ||
7932 | static void | |
7933 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7934 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7935 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7936 | { | |
7937 | struct ofp15_bucket *ob; | |
7938 | size_t start, actions_start, actions_len; | |
7939 | ||
6fd6ed71 | 7940 | start = openflow->size; |
18ac06d3 SH |
7941 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7942 | ||
6fd6ed71 | 7943 | actions_start = openflow->size; |
18ac06d3 SH |
7944 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7945 | openflow, ofp_version); | |
6fd6ed71 | 7946 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
7947 | |
7948 | if (group_type == OFPGT11_SELECT) { | |
7949 | ofputil_put_ofp15_group_bucket_prop_weight(htons(bucket->weight), | |
7950 | openflow); | |
7951 | } | |
7952 | if (bucket->watch_port != OFPP_ANY) { | |
7953 | ovs_be32 port = ofputil_port_to_ofp11(bucket->watch_port); | |
7954 | ofputil_put_ofp15_group_bucket_prop_watch(port, | |
7955 | OFPGBPT15_WATCH_PORT, | |
7956 | openflow); | |
7957 | } | |
7958 | if (bucket->watch_group != OFPG_ANY) { | |
7959 | ovs_be32 group = htonl(bucket->watch_group); | |
7960 | ofputil_put_ofp15_group_bucket_prop_watch(group, | |
7961 | OFPGBPT15_WATCH_GROUP, | |
7962 | openflow); | |
7963 | } | |
7964 | ||
7965 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7966 | ob->len = htons(openflow->size - start); |
79870963 | 7967 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
7968 | ob->bucket_id = htonl(bucket_id); |
7969 | } | |
7970 | ||
53eb84a5 SH |
7971 | static void |
7972 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
7973 | const struct ofputil_group_props *gp, | |
7974 | struct ofpbuf *openflow) | |
7975 | { | |
7976 | struct ntr_group_prop_selection_method *prop; | |
7977 | size_t start; | |
7978 | ||
7979 | start = openflow->size; | |
7980 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
7981 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
7982 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
7983 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
7984 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
7985 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
7986 | strcpy(prop->selection_method, gp->selection_method); | |
7987 | prop->selection_method_param = htonll(gp->selection_method_param); | |
7988 | end_property(openflow, start); | |
7989 | } | |
7990 | ||
5be50252 SH |
7991 | static void |
7992 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7993 | const struct ovs_list *buckets, |
ca6ba700 | 7994 | struct ovs_list *replies, |
5be50252 | 7995 | enum ofp_version version) |
7395c052 NZ |
7996 | { |
7997 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7998 | struct ofp11_group_desc_stats *ogds; | |
7999 | struct ofputil_bucket *bucket; | |
8000 | size_t start_ogds; | |
8001 | ||
6fd6ed71 | 8002 | start_ogds = reply->size; |
7395c052 NZ |
8003 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8004 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8005 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8006 | } |
8007 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8008 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8009 | ogds->type = gds->type; |
8010 | ogds->group_id = htonl(gds->group_id); | |
8011 | ||
8012 | ofpmp_postappend(replies, start_ogds); | |
8013 | } | |
8014 | ||
18ac06d3 SH |
8015 | static void |
8016 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8017 | const struct ovs_list *buckets, |
ca6ba700 | 8018 | struct ovs_list *replies, |
18ac06d3 SH |
8019 | enum ofp_version version) |
8020 | { | |
8021 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
8022 | struct ofp15_group_desc_stats *ogds; | |
8023 | struct ofputil_bucket *bucket; | |
8024 | size_t start_ogds, start_buckets; | |
8025 | ||
6fd6ed71 | 8026 | start_ogds = reply->size; |
18ac06d3 | 8027 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8028 | start_buckets = reply->size; |
18ac06d3 SH |
8029 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8030 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8031 | gds->type, reply, version); | |
8032 | } | |
8033 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8034 | ogds->type = gds->type; |
8035 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8036 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8037 | |
53eb84a5 SH |
8038 | /* Add group properties */ |
8039 | if (gds->props.selection_method[0]) { | |
8040 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8041 | reply); | |
8042 | } | |
3986cae6 | 8043 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8044 | |
18ac06d3 SH |
8045 | ofpmp_postappend(replies, start_ogds); |
8046 | } | |
8047 | ||
5be50252 SH |
8048 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8049 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8050 | * initialized with ofpmp_init(). */ | |
8051 | void | |
8052 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8053 | const struct ovs_list *buckets, |
ca6ba700 | 8054 | struct ovs_list *replies) |
5be50252 SH |
8055 | { |
8056 | enum ofp_version version = ofpmp_version(replies); | |
8057 | ||
8058 | switch (version) | |
8059 | { | |
8060 | case OFP11_VERSION: | |
8061 | case OFP12_VERSION: | |
8062 | case OFP13_VERSION: | |
8063 | case OFP14_VERSION: | |
5be50252 SH |
8064 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8065 | break; | |
8066 | ||
18ac06d3 SH |
8067 | case OFP15_VERSION: |
8068 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
8069 | break; | |
8070 | ||
5be50252 SH |
8071 | case OFP10_VERSION: |
8072 | default: | |
8073 | OVS_NOT_REACHED(); | |
8074 | } | |
8075 | } | |
8076 | ||
7395c052 | 8077 | static enum ofperr |
655ed3ae | 8078 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8079 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8080 | { |
8081 | struct ofp11_bucket *ob; | |
18ac06d3 | 8082 | uint32_t bucket_id = 0; |
7395c052 NZ |
8083 | |
8084 | list_init(buckets); | |
8085 | while (buckets_length > 0) { | |
8086 | struct ofputil_bucket *bucket; | |
8087 | struct ofpbuf ofpacts; | |
8088 | enum ofperr error; | |
8089 | size_t ob_len; | |
8090 | ||
8091 | ob = (buckets_length >= sizeof *ob | |
8092 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8093 | : NULL); | |
8094 | if (!ob) { | |
34582733 | 8095 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8096 | buckets_length); |
e27e4ce9 | 8097 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8098 | } |
8099 | ||
8100 | ob_len = ntohs(ob->len); | |
8101 | if (ob_len < sizeof *ob) { | |
8102 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8103 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8104 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8105 | } else if (ob_len > buckets_length) { | |
8106 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8107 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8108 | ob_len, buckets_length); |
8109 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8110 | } | |
8111 | buckets_length -= ob_len; | |
8112 | ||
8113 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8114 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8115 | version, &ofpacts); | |
7395c052 NZ |
8116 | if (error) { |
8117 | ofpbuf_uninit(&ofpacts); | |
8118 | ofputil_bucket_list_destroy(buckets); | |
8119 | return error; | |
8120 | } | |
8121 | ||
8122 | bucket = xzalloc(sizeof *bucket); | |
8123 | bucket->weight = ntohs(ob->weight); | |
8124 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8125 | if (error) { | |
8126 | ofpbuf_uninit(&ofpacts); | |
8127 | ofputil_bucket_list_destroy(buckets); | |
8128 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8129 | } | |
8130 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8131 | bucket->bucket_id = bucket_id++; |
8132 | ||
7395c052 | 8133 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8134 | bucket->ofpacts_len = ofpacts.size; |
7395c052 NZ |
8135 | list_push_back(buckets, &bucket->list_node); |
8136 | } | |
8137 | ||
8138 | return 0; | |
8139 | } | |
8140 | ||
18ac06d3 SH |
8141 | static enum ofperr |
8142 | parse_ofp15_group_bucket_prop_weight(const struct ofpbuf *payload, | |
8143 | ovs_be16 *weight) | |
8144 | { | |
6fd6ed71 | 8145 | struct ofp15_group_bucket_prop_weight *prop = payload->data; |
18ac06d3 | 8146 | |
6fd6ed71 | 8147 | if (payload->size != sizeof *prop) { |
18ac06d3 | 8148 | log_property(false, "OpenFlow bucket weight property length " |
6fd6ed71 | 8149 | "%u is not valid", payload->size); |
18ac06d3 SH |
8150 | return OFPERR_OFPBPC_BAD_LEN; |
8151 | } | |
8152 | ||
8153 | *weight = prop->weight; | |
8154 | ||
8155 | return 0; | |
8156 | } | |
8157 | ||
8158 | static enum ofperr | |
8159 | parse_ofp15_group_bucket_prop_watch(const struct ofpbuf *payload, | |
8160 | ovs_be32 *watch) | |
8161 | { | |
6fd6ed71 | 8162 | struct ofp15_group_bucket_prop_watch *prop = payload->data; |
18ac06d3 | 8163 | |
6fd6ed71 | 8164 | if (payload->size != sizeof *prop) { |
18ac06d3 | 8165 | log_property(false, "OpenFlow bucket watch port or group " |
6fd6ed71 | 8166 | "property length %u is not valid", payload->size); |
18ac06d3 SH |
8167 | return OFPERR_OFPBPC_BAD_LEN; |
8168 | } | |
8169 | ||
8170 | *watch = prop->watch; | |
8171 | ||
8172 | return 0; | |
8173 | } | |
8174 | ||
8175 | static enum ofperr | |
8176 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8177 | enum ofp_version version, uint8_t group_type, |
8178 | struct ovs_list *buckets) | |
18ac06d3 SH |
8179 | { |
8180 | struct ofp15_bucket *ob; | |
8181 | ||
8182 | list_init(buckets); | |
8183 | while (buckets_length > 0) { | |
8184 | struct ofputil_bucket *bucket = NULL; | |
8185 | struct ofpbuf ofpacts; | |
8186 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8187 | struct ofpbuf properties; | |
8188 | size_t ob_len, actions_len, properties_len; | |
8189 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8190 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8191 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8192 | |
8193 | ofpbuf_init(&ofpacts, 0); | |
8194 | ||
8195 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8196 | if (!ob) { | |
8197 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8198 | " leftover bytes", buckets_length); | |
8199 | goto err; | |
8200 | } | |
8201 | ||
8202 | ob_len = ntohs(ob->len); | |
79870963 | 8203 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8204 | |
8205 | if (ob_len < sizeof *ob) { | |
8206 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8207 | "%"PRIuSIZE" is not valid", ob_len); | |
8208 | goto err; | |
8209 | } else if (ob_len > buckets_length) { | |
8210 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8211 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8212 | PRIuSIZE, ob_len, buckets_length); | |
8213 | goto err; | |
8214 | } else if (actions_len > ob_len - sizeof *ob) { | |
8215 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8216 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8217 | "data size %"PRIuSIZE, actions_len, | |
8218 | ob_len - sizeof *ob); | |
8219 | goto err; | |
8220 | } | |
8221 | buckets_length -= ob_len; | |
8222 | ||
8223 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8224 | &ofpacts); | |
8225 | if (err) { | |
8226 | goto err; | |
8227 | } | |
8228 | ||
8229 | properties_len = ob_len - sizeof *ob - actions_len; | |
8230 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8231 | properties_len); | |
8232 | ||
6fd6ed71 | 8233 | while (properties.size > 0) { |
18ac06d3 SH |
8234 | struct ofpbuf payload; |
8235 | uint16_t type; | |
8236 | ||
8237 | err = ofputil_pull_property(&properties, &payload, &type); | |
8238 | if (err) { | |
8239 | goto err; | |
8240 | } | |
8241 | ||
8242 | switch (type) { | |
8243 | case OFPGBPT15_WEIGHT: | |
8244 | err = parse_ofp15_group_bucket_prop_weight(&payload, &weight); | |
8245 | break; | |
8246 | ||
8247 | case OFPGBPT15_WATCH_PORT: | |
8248 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
8249 | &watch_port); | |
8250 | break; | |
8251 | ||
8252 | case OFPGBPT15_WATCH_GROUP: | |
8253 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
8254 | &watch_group); | |
8255 | break; | |
8256 | ||
8257 | default: | |
8258 | log_property(false, "unknown group bucket property %"PRIu16, | |
8259 | type); | |
8260 | err = OFPERR_OFPBPC_BAD_TYPE; | |
8261 | break; | |
8262 | } | |
8263 | ||
8264 | if (err) { | |
8265 | goto err; | |
8266 | } | |
8267 | } | |
8268 | ||
8269 | bucket = xzalloc(sizeof *bucket); | |
8270 | ||
8271 | bucket->weight = ntohs(weight); | |
8272 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8273 | if (err) { | |
8274 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8275 | goto err; | |
8276 | } | |
8277 | bucket->watch_group = ntohl(watch_group); | |
8278 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8279 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8280 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8281 | bucket->bucket_id); | |
8282 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8283 | goto err; | |
8284 | } | |
8285 | ||
8286 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8287 | bucket->ofpacts_len = ofpacts.size; |
18ac06d3 SH |
8288 | list_push_back(buckets, &bucket->list_node); |
8289 | ||
8290 | continue; | |
8291 | ||
8292 | err: | |
8293 | free(bucket); | |
8294 | ofpbuf_uninit(&ofpacts); | |
8295 | ofputil_bucket_list_destroy(buckets); | |
8296 | return err; | |
8297 | } | |
8298 | ||
8299 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8300 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8301 | ofputil_bucket_list_destroy(buckets); | |
8302 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8303 | } | |
8304 | ||
8305 | return 0; | |
8306 | } | |
8307 | ||
bc65c25a SH |
8308 | static void |
8309 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8310 | { | |
8311 | memset(gp, 0, sizeof *gp); | |
8312 | } | |
8313 | ||
8314 | static enum ofperr | |
8315 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8316 | enum ofp11_group_type group_type, | |
8317 | enum ofp15_group_mod_command group_cmd, | |
8318 | struct ofputil_group_props *gp) | |
8319 | { | |
8320 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8321 | size_t fields_len, method_len; | |
8322 | enum ofperr error; | |
8323 | ||
8324 | switch (group_type) { | |
8325 | case OFPGT11_SELECT: | |
8326 | break; | |
8327 | case OFPGT11_ALL: | |
8328 | case OFPGT11_INDIRECT: | |
8329 | case OFPGT11_FF: | |
8330 | log_property(false, "ntr selection method property is only allowed " | |
8331 | "for select groups"); | |
8332 | return OFPERR_OFPBPC_BAD_VALUE; | |
8333 | default: | |
8334 | OVS_NOT_REACHED(); | |
8335 | } | |
8336 | ||
8337 | switch (group_cmd) { | |
8338 | case OFPGC15_ADD: | |
8339 | case OFPGC15_MODIFY: | |
8340 | break; | |
8341 | case OFPGC15_DELETE: | |
8342 | case OFPGC15_INSERT_BUCKET: | |
8343 | case OFPGC15_REMOVE_BUCKET: | |
8344 | log_property(false, "ntr selection method property is only allowed " | |
8345 | "for add and delete group modifications"); | |
8346 | return OFPERR_OFPBPC_BAD_VALUE; | |
8347 | default: | |
8348 | OVS_NOT_REACHED(); | |
8349 | } | |
8350 | ||
8351 | if (payload->size < sizeof *prop) { | |
8352 | log_property(false, "ntr selection method property length " | |
8353 | "%u is not valid", payload->size); | |
8354 | return OFPERR_OFPBPC_BAD_LEN; | |
8355 | } | |
8356 | ||
8357 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8358 | ||
8359 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
8360 | log_property(false, "ntr selection method is not null terminated"); | |
8361 | return OFPERR_OFPBPC_BAD_VALUE; | |
8362 | } | |
8363 | ||
0c4b9393 SH |
8364 | if (strcmp("hash", prop->selection_method)) { |
8365 | log_property(false, "ntr selection method '%s' is not supported", | |
8366 | prop->selection_method); | |
8367 | return OFPERR_OFPBPC_BAD_VALUE; | |
8368 | } | |
bc65c25a SH |
8369 | |
8370 | strcpy(gp->selection_method, prop->selection_method); | |
8371 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8372 | ||
8373 | if (!method_len && gp->selection_method_param) { | |
8374 | log_property(false, "ntr selection method parameter is non-zero but " | |
8375 | "selection method is empty"); | |
8376 | return OFPERR_OFPBPC_BAD_VALUE; | |
8377 | } | |
8378 | ||
8379 | ofpbuf_pull(payload, sizeof *prop); | |
8380 | ||
8381 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8382 | if (!method_len && fields_len) { | |
8383 | log_property(false, "ntr selection method parameter is zero " | |
8384 | "but fields are provided"); | |
8385 | return OFPERR_OFPBPC_BAD_VALUE; | |
8386 | } | |
8387 | ||
8388 | error = oxm_pull_field_array(payload->data, fields_len, | |
8389 | &gp->fields); | |
8390 | if (error) { | |
8391 | log_property(false, "ntr selection method fields are invalid"); | |
8392 | return error; | |
8393 | } | |
8394 | ||
8395 | return 0; | |
8396 | } | |
8397 | ||
8398 | static enum ofperr | |
8399 | parse_group_prop_ntr(struct ofpbuf *payload, uint32_t exp_type, | |
8400 | enum ofp11_group_type group_type, | |
8401 | enum ofp15_group_mod_command group_cmd, | |
8402 | struct ofputil_group_props *gp) | |
8403 | { | |
8404 | enum ofperr error; | |
8405 | ||
8406 | switch (exp_type) { | |
8407 | case NTRT_SELECTION_METHOD: | |
8408 | error = parse_group_prop_ntr_selection_method(payload, group_type, | |
8409 | group_cmd, gp); | |
8410 | break; | |
8411 | ||
8412 | default: | |
8413 | log_property(false, "unknown group property ntr experimenter type " | |
8414 | "%"PRIu32, exp_type); | |
8415 | error = OFPERR_OFPBPC_BAD_TYPE; | |
8416 | break; | |
8417 | } | |
8418 | ||
8419 | return error; | |
8420 | } | |
8421 | ||
8422 | static enum ofperr | |
8423 | parse_ofp15_group_prop_exp(struct ofpbuf *payload, | |
8424 | enum ofp11_group_type group_type, | |
8425 | enum ofp15_group_mod_command group_cmd, | |
8426 | struct ofputil_group_props *gp) | |
8427 | { | |
8428 | struct ofp_prop_experimenter *prop = payload->data; | |
8429 | uint16_t experimenter; | |
8430 | uint32_t exp_type; | |
8431 | enum ofperr error; | |
8432 | ||
8433 | if (payload->size < sizeof *prop) { | |
8434 | return OFPERR_OFPBPC_BAD_LEN; | |
8435 | } | |
8436 | ||
8437 | experimenter = ntohl(prop->experimenter); | |
8438 | exp_type = ntohl(prop->exp_type); | |
8439 | ||
8440 | switch (experimenter) { | |
8441 | case NTR_VENDOR_ID: | |
c28a1f83 | 8442 | case NTR_COMPAT_VENDOR_ID: |
bc65c25a SH |
8443 | error = parse_group_prop_ntr(payload, exp_type, group_type, |
8444 | group_cmd, gp); | |
8445 | break; | |
8446 | ||
8447 | default: | |
8448 | log_property(false, "unknown group property experimenter %"PRIu16, | |
8449 | experimenter); | |
8450 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
8451 | break; | |
8452 | } | |
8453 | ||
8454 | return error; | |
8455 | } | |
8456 | ||
8457 | static enum ofperr | |
8458 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8459 | enum ofp11_group_type group_type, | |
8460 | enum ofp15_group_mod_command group_cmd, | |
8461 | struct ofputil_group_props *gp, | |
8462 | size_t properties_len) | |
8463 | { | |
8464 | struct ofpbuf properties; | |
8465 | ||
8466 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8467 | properties_len); | |
8468 | ||
8469 | while (properties.size > 0) { | |
8470 | struct ofpbuf payload; | |
8471 | enum ofperr error; | |
8472 | uint16_t type; | |
8473 | ||
8474 | error = ofputil_pull_property(&properties, &payload, &type); | |
8475 | if (error) { | |
8476 | return error; | |
8477 | } | |
8478 | ||
8479 | switch (type) { | |
8480 | case OFPGPT15_EXPERIMENTER: | |
8481 | error = parse_ofp15_group_prop_exp(&payload, group_type, | |
8482 | group_cmd, gp); | |
8483 | break; | |
8484 | ||
8485 | default: | |
8486 | log_property(false, "unknown group property %"PRIu16, type); | |
8487 | error = OFPERR_OFPBPC_BAD_TYPE; | |
8488 | break; | |
8489 | } | |
8490 | ||
8491 | if (error) { | |
8492 | return error; | |
8493 | } | |
8494 | } | |
8495 | ||
8496 | return 0; | |
8497 | } | |
8498 | ||
975910f2 SH |
8499 | static int |
8500 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8501 | struct ofpbuf *msg, | |
8502 | enum ofp_version version) | |
7395c052 NZ |
8503 | { |
8504 | struct ofp11_group_desc_stats *ogds; | |
8505 | size_t length; | |
8506 | ||
6fd6ed71 | 8507 | if (!msg->header) { |
7395c052 NZ |
8508 | ofpraw_pull_assert(msg); |
8509 | } | |
8510 | ||
6fd6ed71 | 8511 | if (!msg->size) { |
7395c052 NZ |
8512 | return EOF; |
8513 | } | |
8514 | ||
8515 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8516 | if (!ogds) { | |
437d0d22 | 8517 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8518 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8519 | return OFPERR_OFPBRC_BAD_LEN; |
8520 | } | |
8521 | gd->type = ogds->type; | |
8522 | gd->group_id = ntohl(ogds->group_id); | |
8523 | ||
8524 | length = ntohs(ogds->length); | |
6fd6ed71 | 8525 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8526 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8527 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8528 | return OFPERR_OFPBRC_BAD_LEN; |
8529 | } | |
8530 | ||
655ed3ae SH |
8531 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8532 | &gd->buckets); | |
7395c052 NZ |
8533 | } |
8534 | ||
18ac06d3 SH |
8535 | static int |
8536 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8537 | struct ofpbuf *msg, | |
8538 | enum ofp_version version) | |
8539 | { | |
8540 | struct ofp15_group_desc_stats *ogds; | |
8541 | uint16_t length, bucket_list_len; | |
bc65c25a | 8542 | int error; |
18ac06d3 | 8543 | |
6fd6ed71 | 8544 | if (!msg->header) { |
18ac06d3 SH |
8545 | ofpraw_pull_assert(msg); |
8546 | } | |
8547 | ||
6fd6ed71 | 8548 | if (!msg->size) { |
18ac06d3 SH |
8549 | return EOF; |
8550 | } | |
8551 | ||
8552 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8553 | if (!ogds) { | |
8554 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8555 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8556 | return OFPERR_OFPBRC_BAD_LEN; |
8557 | } | |
8558 | gd->type = ogds->type; | |
8559 | gd->group_id = ntohl(ogds->group_id); | |
8560 | ||
8561 | length = ntohs(ogds->length); | |
6fd6ed71 | 8562 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8563 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8564 | "length %u", length); | |
8565 | return OFPERR_OFPBRC_BAD_LEN; | |
8566 | } | |
8567 | ||
8568 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8569 | if (length < bucket_list_len + sizeof *ogds) { | |
8570 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8571 | "bucket list length %u", bucket_list_len); | |
8572 | return OFPERR_OFPBRC_BAD_LEN; | |
8573 | } | |
64e8c446 | 8574 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8575 | &gd->buckets); |
8576 | if (error) { | |
8577 | return error; | |
8578 | } | |
18ac06d3 | 8579 | |
bc65c25a SH |
8580 | /* By definition group desc messages don't have a group mod command. |
8581 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8582 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8583 | * against group mod messages with other commands supplying | |
8584 | * a NTR selection method group experimenter property. | |
8585 | * Such properties are valid for group desc replies so | |
8586 | * claim that the group mod command is OFPGC15_ADD to | |
8587 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8588 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8589 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8590 | } |
8591 | ||
975910f2 SH |
8592 | /* Converts a group description reply in 'msg' into an abstract |
8593 | * ofputil_group_desc in 'gd'. | |
8594 | * | |
8595 | * Multiple group description replies can be packed into a single OpenFlow | |
8596 | * message. Calling this function multiple times for a single 'msg' iterates | |
8597 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8598 | * null and not modify them between calls. | |
8599 | * | |
8600 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8601 | * otherwise a positive errno value. */ | |
8602 | int | |
8603 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8604 | struct ofpbuf *msg, enum ofp_version version) | |
8605 | { | |
bc65c25a SH |
8606 | ofputil_init_group_properties(&gd->props); |
8607 | ||
975910f2 SH |
8608 | switch (version) |
8609 | { | |
8610 | case OFP11_VERSION: | |
8611 | case OFP12_VERSION: | |
8612 | case OFP13_VERSION: | |
8613 | case OFP14_VERSION: | |
975910f2 SH |
8614 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8615 | ||
18ac06d3 SH |
8616 | case OFP15_VERSION: |
8617 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8618 | ||
975910f2 SH |
8619 | case OFP10_VERSION: |
8620 | default: | |
8621 | OVS_NOT_REACHED(); | |
8622 | } | |
8623 | } | |
8624 | ||
bc65c25a SH |
8625 | void |
8626 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8627 | { | |
8628 | ofputil_bucket_list_destroy(&gm->buckets); | |
8629 | } | |
8630 | ||
4498bea5 SH |
8631 | static struct ofpbuf * |
8632 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8633 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8634 | { |
8635 | struct ofpbuf *b; | |
8636 | struct ofp11_group_mod *ogm; | |
8637 | size_t start_ogm; | |
7395c052 | 8638 | struct ofputil_bucket *bucket; |
7395c052 | 8639 | |
4498bea5 | 8640 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8641 | start_ogm = b->size; |
4498bea5 SH |
8642 | ofpbuf_put_zeros(b, sizeof *ogm); |
8643 | ||
8644 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8645 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8646 | } | |
8647 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8648 | ogm->command = htons(gm->command); | |
8649 | ogm->type = gm->type; | |
8650 | ogm->group_id = htonl(gm->group_id); | |
8651 | ||
8652 | return b; | |
8653 | } | |
8654 | ||
18ac06d3 SH |
8655 | static struct ofpbuf * |
8656 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8657 | const struct ofputil_group_mod *gm) | |
8658 | { | |
8659 | struct ofpbuf *b; | |
8660 | struct ofp15_group_mod *ogm; | |
8661 | size_t start_ogm; | |
8662 | struct ofputil_bucket *bucket; | |
8663 | struct id_pool *bucket_ids = NULL; | |
8664 | ||
8665 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8666 | start_ogm = b->size; |
18ac06d3 SH |
8667 | ofpbuf_put_zeros(b, sizeof *ogm); |
8668 | ||
8669 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8670 | uint32_t bucket_id; | |
8671 | ||
8672 | /* Generate a bucket id if none was supplied */ | |
8673 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8674 | if (!bucket_ids) { | |
8675 | const struct ofputil_bucket *bkt; | |
8676 | ||
8677 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8678 | ||
8679 | /* Mark all bucket_ids that are present in gm | |
8680 | * as used in the pool. */ | |
8681 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8682 | if (bkt == bucket) { | |
8683 | break; | |
8684 | } | |
8685 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8686 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8687 | } | |
8688 | } | |
8689 | } | |
8690 | ||
8691 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8692 | OVS_NOT_REACHED(); | |
8693 | } | |
8694 | } else { | |
8695 | bucket_id = bucket->bucket_id; | |
8696 | } | |
8697 | ||
8698 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8699 | } | |
8700 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8701 | ogm->command = htons(gm->command); | |
8702 | ogm->type = gm->type; | |
8703 | ogm->group_id = htonl(gm->group_id); | |
8704 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8705 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8706 | |
53eb84a5 SH |
8707 | /* Add group properties */ |
8708 | if (gm->props.selection_method[0]) { | |
8709 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8710 | } | |
8711 | ||
18ac06d3 SH |
8712 | id_pool_destroy(bucket_ids); |
8713 | return b; | |
8714 | } | |
8715 | ||
d4b1d0ca | 8716 | static void |
9dd30b05 BP |
8717 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8718 | { | |
d4b1d0ca SH |
8719 | const char *opt_version; |
8720 | const char *version; | |
8721 | const char *cmd_str; | |
8722 | ||
8723 | switch (cmd) { | |
8724 | case OFPGC15_ADD: | |
8725 | case OFPGC15_MODIFY: | |
8726 | case OFPGC15_DELETE: | |
8727 | version = "1.1"; | |
8728 | opt_version = "11"; | |
8729 | break; | |
8730 | ||
8731 | case OFPGC15_INSERT_BUCKET: | |
8732 | case OFPGC15_REMOVE_BUCKET: | |
8733 | version = "1.5"; | |
8734 | opt_version = "15"; | |
9dd30b05 | 8735 | break; |
d4b1d0ca SH |
8736 | |
8737 | default: | |
8738 | OVS_NOT_REACHED(); | |
8739 | } | |
8740 | ||
8741 | switch (cmd) { | |
8742 | case OFPGC15_ADD: | |
8743 | cmd_str = "add-group"; | |
8744 | break; | |
8745 | ||
8746 | case OFPGC15_MODIFY: | |
8747 | cmd_str = "mod-group"; | |
8748 | break; | |
8749 | ||
8750 | case OFPGC15_DELETE: | |
8751 | cmd_str = "del-group"; | |
8752 | break; | |
8753 | ||
8754 | case OFPGC15_INSERT_BUCKET: | |
8755 | cmd_str = "insert-bucket"; | |
8756 | break; | |
8757 | ||
8758 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8759 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8760 | break; |
8761 | ||
8762 | default: | |
8763 | OVS_NOT_REACHED(); | |
8764 | } | |
8765 | ||
8766 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8767 | cmd_str, version, opt_version); | |
8768 | ||
8769 | } | |
8770 | ||
4498bea5 SH |
8771 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8772 | * 'ofp_version' and returns the message. */ | |
8773 | struct ofpbuf * | |
8774 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
8775 | const struct ofputil_group_mod *gm) | |
8776 | { | |
d4b1d0ca | 8777 | |
7395c052 | 8778 | switch (ofp_version) { |
d4b1d0ca SH |
8779 | case OFP10_VERSION: |
8780 | bad_group_cmd(gm->command); | |
7395c052 NZ |
8781 | |
8782 | case OFP11_VERSION: | |
8783 | case OFP12_VERSION: | |
c37c0382 AC |
8784 | case OFP13_VERSION: |
8785 | case OFP14_VERSION: | |
d4b1d0ca SH |
8786 | if (gm->command > OFPGC11_DELETE) { |
8787 | bad_group_cmd(gm->command); | |
8788 | } | |
4498bea5 | 8789 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 8790 | |
18ac06d3 SH |
8791 | case OFP15_VERSION: |
8792 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
8793 | ||
7395c052 | 8794 | default: |
428b2edd | 8795 | OVS_NOT_REACHED(); |
7395c052 | 8796 | } |
7395c052 NZ |
8797 | } |
8798 | ||
aead63f2 SH |
8799 | static enum ofperr |
8800 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8801 | struct ofputil_group_mod *gm) | |
8802 | { | |
8803 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 8804 | enum ofperr error; |
aead63f2 SH |
8805 | |
8806 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8807 | gm->command = ntohs(ogm->command); | |
8808 | gm->type = ogm->type; | |
8809 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8810 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 8811 | |
6fd6ed71 | 8812 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
8813 | &gm->buckets); |
8814 | ||
8815 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
8816 | if (!error | |
8817 | && ofp_version >= OFP13_VERSION | |
8818 | && gm->command == OFPGC11_DELETE | |
8819 | && !list_is_empty(&gm->buckets)) { | |
8820 | error = OFPERR_OFPGMFC_INVALID_GROUP; | |
8821 | } | |
8822 | ||
8823 | return error; | |
aead63f2 SH |
8824 | } |
8825 | ||
18ac06d3 SH |
8826 | static enum ofperr |
8827 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8828 | struct ofputil_group_mod *gm) | |
8829 | { | |
8830 | const struct ofp15_group_mod *ogm; | |
8831 | uint16_t bucket_list_len; | |
8832 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8833 | ||
8834 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8835 | gm->command = ntohs(ogm->command); | |
8836 | gm->type = ogm->type; | |
8837 | gm->group_id = ntohl(ogm->group_id); | |
8838 | ||
8839 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8840 | switch (gm->command) { | |
8841 | case OFPGC15_REMOVE_BUCKET: | |
8842 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8843 | error = 0; | |
8844 | } | |
8845 | /* Fall through */ | |
8846 | case OFPGC15_INSERT_BUCKET: | |
8847 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8848 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8849 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8850 | error = 0; | |
8851 | } | |
8852 | break; | |
8853 | ||
8854 | case OFPGC11_ADD: | |
8855 | case OFPGC11_MODIFY: | |
8856 | case OFPGC11_DELETE: | |
8857 | default: | |
8858 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8859 | error = 0; | |
8860 | } | |
8861 | break; | |
8862 | } | |
8863 | if (error) { | |
8864 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8865 | "group command bucket id (%u) is out of range", | |
8866 | gm->command_bucket_id); | |
8867 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8868 | } | |
8869 | ||
79870963 | 8870 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 8871 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 8872 | gm->type, &gm->buckets); |
bc65c25a SH |
8873 | if (error) { |
8874 | return error; | |
18ac06d3 SH |
8875 | } |
8876 | ||
bc65c25a SH |
8877 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
8878 | msg->size); | |
18ac06d3 SH |
8879 | } |
8880 | ||
7395c052 NZ |
8881 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8882 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8883 | enum ofperr | |
8884 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8885 | struct ofputil_group_mod *gm) | |
8886 | { | |
aead63f2 | 8887 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8888 | struct ofpbuf msg; |
e57681e5 SH |
8889 | struct ofputil_bucket *bucket; |
8890 | enum ofperr err; | |
7395c052 NZ |
8891 | |
8892 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8893 | ofpraw_pull_assert(&msg); | |
8894 | ||
bc65c25a SH |
8895 | ofputil_init_group_properties(&gm->props); |
8896 | ||
aead63f2 SH |
8897 | switch (ofp_version) |
8898 | { | |
8899 | case OFP11_VERSION: | |
8900 | case OFP12_VERSION: | |
8901 | case OFP13_VERSION: | |
8902 | case OFP14_VERSION: | |
aead63f2 SH |
8903 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8904 | break; | |
8905 | ||
18ac06d3 SH |
8906 | case OFP15_VERSION: |
8907 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8908 | break; | |
8909 | ||
aead63f2 SH |
8910 | case OFP10_VERSION: |
8911 | default: | |
8912 | OVS_NOT_REACHED(); | |
8913 | } | |
7395c052 | 8914 | |
e57681e5 SH |
8915 | if (err) { |
8916 | return err; | |
8917 | } | |
8918 | ||
e1799eb7 SH |
8919 | switch (gm->type) { |
8920 | case OFPGT11_INDIRECT: | |
8921 | if (!list_is_singleton(&gm->buckets)) { | |
290eada7 | 8922 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
8923 | } |
8924 | break; | |
8925 | case OFPGT11_ALL: | |
8926 | case OFPGT11_SELECT: | |
8927 | case OFPGT11_FF: | |
8928 | break; | |
8929 | default: | |
09d4b951 | 8930 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
8931 | } |
8932 | ||
8933 | switch (gm->command) { | |
8934 | case OFPGC11_ADD: | |
8935 | case OFPGC11_MODIFY: | |
8936 | case OFPGC11_DELETE: | |
8937 | case OFPGC15_INSERT_BUCKET: | |
8938 | break; | |
8939 | case OFPGC15_REMOVE_BUCKET: | |
8940 | if (!list_is_empty(&gm->buckets)) { | |
8941 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8942 | } | |
8943 | break; | |
8944 | default: | |
09d4b951 | 8945 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
8946 | } |
8947 | ||
e57681e5 | 8948 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
8949 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
8950 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8951 | } | |
8952 | ||
e57681e5 SH |
8953 | switch (gm->type) { |
8954 | case OFPGT11_ALL: | |
8955 | case OFPGT11_INDIRECT: | |
8956 | if (ofputil_bucket_has_liveness(bucket)) { | |
8957 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8958 | } | |
8959 | break; | |
8960 | case OFPGT11_SELECT: | |
8961 | break; | |
8962 | case OFPGT11_FF: | |
8963 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8964 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8965 | } | |
8966 | break; | |
8967 | default: | |
896313f3 FL |
8968 | /* Returning BAD TYPE to be consistent |
8969 | * though gm->type has been checked already. */ | |
8970 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
8971 | } |
8972 | } | |
8973 | ||
8974 | return 0; | |
7395c052 NZ |
8975 | } |
8976 | ||
64626975 SH |
8977 | /* Parse a queue status request message into 'oqsr'. |
8978 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8979 | enum ofperr | |
8980 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8981 | struct ofputil_queue_stats_request *oqsr) | |
8982 | { | |
8983 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8984 | case OFP15_VERSION: |
c37c0382 | 8985 | case OFP14_VERSION: |
2e1ae200 | 8986 | case OFP13_VERSION: |
64626975 SH |
8987 | case OFP12_VERSION: |
8988 | case OFP11_VERSION: { | |
8989 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8990 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8991 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8992 | } | |
8993 | ||
8994 | case OFP10_VERSION: { | |
7f05e7ab JR |
8995 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8996 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8997 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8998 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
8999 | if (oqsr->port_no == OFPP_ALL) { | |
9000 | oqsr->port_no = OFPP_ANY; | |
9001 | } | |
64626975 SH |
9002 | return 0; |
9003 | } | |
9004 | ||
9005 | default: | |
428b2edd | 9006 | OVS_NOT_REACHED(); |
64626975 SH |
9007 | } |
9008 | } | |
9009 | ||
0746a84f BP |
9010 | /* Encode a queue stats request for 'oqsr', the encoded message |
9011 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9012 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9013 | struct ofpbuf * |
9014 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9015 | const struct ofputil_queue_stats_request *oqsr) | |
9016 | { | |
9017 | struct ofpbuf *request; | |
9018 | ||
9019 | switch (ofp_version) { | |
9020 | case OFP11_VERSION: | |
2e1ae200 | 9021 | case OFP12_VERSION: |
c37c0382 | 9022 | case OFP13_VERSION: |
42dccab5 BP |
9023 | case OFP14_VERSION: |
9024 | case OFP15_VERSION: { | |
64626975 SH |
9025 | struct ofp11_queue_stats_request *req; |
9026 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9027 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9028 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9029 | req->queue_id = htonl(oqsr->queue_id); | |
9030 | break; | |
9031 | } | |
9032 | case OFP10_VERSION: { | |
9033 | struct ofp10_queue_stats_request *req; | |
9034 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9035 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9036 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9037 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9038 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9039 | req->queue_id = htonl(oqsr->queue_id); |
9040 | break; | |
9041 | } | |
9042 | default: | |
428b2edd | 9043 | OVS_NOT_REACHED(); |
64626975 SH |
9044 | } |
9045 | ||
9046 | return request; | |
9047 | } | |
9048 | ||
9049 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9050 | * message 'oh'. */ | |
9051 | size_t | |
9052 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9053 | { | |
1bb2cdbe | 9054 | struct ofputil_queue_stats qs; |
64626975 | 9055 | struct ofpbuf b; |
1bb2cdbe | 9056 | size_t n = 0; |
64626975 SH |
9057 | |
9058 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9059 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
9060 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
9061 | n++; | |
9062 | } | |
9063 | return n; | |
64626975 SH |
9064 | } |
9065 | ||
9066 | static enum ofperr | |
9067 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9068 | const struct ofp10_queue_stats *qs10) | |
9069 | { | |
4e022ec0 | 9070 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9071 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9072 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9073 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9074 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9075 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9076 | |
9077 | return 0; | |
9078 | } | |
9079 | ||
9080 | static enum ofperr | |
9081 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9082 | const struct ofp11_queue_stats *qs11) | |
9083 | { | |
9084 | enum ofperr error; | |
9085 | ||
9086 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9087 | if (error) { | |
9088 | return error; | |
9089 | } | |
9090 | ||
9091 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9092 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9093 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9094 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9095 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9096 | |
9097 | return 0; | |
9098 | } | |
9099 | ||
2e1ae200 JR |
9100 | static enum ofperr |
9101 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9102 | const struct ofp13_queue_stats *qs13) | |
9103 | { | |
6dc34a0d | 9104 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9105 | if (!error) { |
6dc34a0d BP |
9106 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9107 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9108 | } |
9109 | ||
9110 | return error; | |
9111 | } | |
9112 | ||
1bb2cdbe BP |
9113 | static enum ofperr |
9114 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9115 | struct ofpbuf *msg) | |
9116 | { | |
9117 | const struct ofp14_queue_stats *qs14; | |
9118 | size_t len; | |
9119 | ||
9120 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9121 | if (!qs14) { | |
9122 | return OFPERR_OFPBRC_BAD_LEN; | |
9123 | } | |
9124 | ||
9125 | len = ntohs(qs14->length); | |
6fd6ed71 | 9126 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9127 | return OFPERR_OFPBRC_BAD_LEN; |
9128 | } | |
9129 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9130 | ||
9131 | /* No properties yet defined, so ignore them for now. */ | |
9132 | ||
9133 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9134 | } | |
9135 | ||
64626975 SH |
9136 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9137 | * ofputil_queue_stats in 'qs'. | |
9138 | * | |
9139 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9140 | * message. Calling this function multiple times for a single 'msg' iterates | |
9141 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9142 | * null and not modify them between calls. | |
9143 | * | |
9144 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9145 | * otherwise a positive errno value. */ | |
9146 | int | |
9147 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9148 | { | |
9149 | enum ofperr error; | |
9150 | enum ofpraw raw; | |
9151 | ||
6fd6ed71 | 9152 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9153 | : ofpraw_pull(&raw, msg)); |
9154 | if (error) { | |
9155 | return error; | |
9156 | } | |
9157 | ||
6fd6ed71 | 9158 | if (!msg->size) { |
64626975 | 9159 | return EOF; |
1bb2cdbe BP |
9160 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9161 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9162 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9163 | const struct ofp13_queue_stats *qs13; | |
9164 | ||
9165 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9166 | if (!qs13) { | |
9167 | goto bad_len; | |
9168 | } | |
9169 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9170 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9171 | const struct ofp11_queue_stats *qs11; | |
9172 | ||
9173 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9174 | if (!qs11) { | |
2e1ae200 | 9175 | goto bad_len; |
64626975 SH |
9176 | } |
9177 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9178 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9179 | const struct ofp10_queue_stats *qs10; | |
9180 | ||
9181 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9182 | if (!qs10) { | |
2e1ae200 | 9183 | goto bad_len; |
64626975 SH |
9184 | } |
9185 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9186 | } else { | |
428b2edd | 9187 | OVS_NOT_REACHED(); |
64626975 | 9188 | } |
2e1ae200 JR |
9189 | |
9190 | bad_len: | |
437d0d22 | 9191 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9192 | "bytes at end", msg->size); |
2e1ae200 | 9193 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9194 | } |
9195 | ||
9196 | static void | |
9197 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9198 | struct ofp10_queue_stats *qs10) | |
9199 | { | |
4e022ec0 | 9200 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9201 | memset(qs10->pad, 0, sizeof qs10->pad); |
9202 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9203 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9204 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9205 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9206 | } |
9207 | ||
9208 | static void | |
9209 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9210 | struct ofp11_queue_stats *qs11) | |
9211 | { | |
9212 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9213 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9214 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9215 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9216 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9217 | } |
9218 | ||
2e1ae200 JR |
9219 | static void |
9220 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9221 | struct ofp13_queue_stats *qs13) | |
9222 | { | |
9223 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9224 | if (oqs->duration_sec != UINT32_MAX) { |
9225 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9226 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9227 | } else { | |
b8266395 BP |
9228 | qs13->duration_sec = OVS_BE32_MAX; |
9229 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9230 | } |
2e1ae200 JR |
9231 | } |
9232 | ||
1bb2cdbe BP |
9233 | static void |
9234 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9235 | struct ofp14_queue_stats *qs14) | |
9236 | { | |
9237 | qs14->length = htons(sizeof *qs14); | |
9238 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9239 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9240 | } | |
9241 | ||
9242 | ||
64626975 SH |
9243 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9244 | void | |
ca6ba700 | 9245 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9246 | const struct ofputil_queue_stats *oqs) |
9247 | { | |
e28ac5cf | 9248 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9249 | case OFP13_VERSION: { |
9250 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9251 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9252 | break; | |
9253 | } | |
9254 | ||
64626975 SH |
9255 | case OFP12_VERSION: |
9256 | case OFP11_VERSION: { | |
2e1ae200 | 9257 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9258 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9259 | break; | |
9260 | } | |
9261 | ||
9262 | case OFP10_VERSION: { | |
2e1ae200 | 9263 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9264 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9265 | break; | |
9266 | } | |
9267 | ||
42dccab5 BP |
9268 | case OFP14_VERSION: |
9269 | case OFP15_VERSION: { | |
1bb2cdbe BP |
9270 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9271 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9272 | break; |
1bb2cdbe | 9273 | } |
c37c0382 | 9274 | |
64626975 | 9275 | default: |
428b2edd | 9276 | OVS_NOT_REACHED(); |
64626975 SH |
9277 | } |
9278 | } | |
777af88d AC |
9279 | |
9280 | enum ofperr | |
9281 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9282 | struct ofputil_bundle_ctrl_msg *msg) | |
9283 | { | |
9284 | struct ofpbuf b; | |
9285 | enum ofpraw raw; | |
9286 | const struct ofp14_bundle_ctrl_msg *m; | |
9287 | ||
9288 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9289 | raw = ofpraw_pull_assert(&b); | |
9290 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
9291 | ||
6fd6ed71 | 9292 | m = b.msg; |
777af88d AC |
9293 | msg->bundle_id = ntohl(m->bundle_id); |
9294 | msg->type = ntohs(m->type); | |
9295 | msg->flags = ntohs(m->flags); | |
9296 | ||
9297 | return 0; | |
9298 | } | |
9299 | ||
db5076ee JR |
9300 | struct ofpbuf * |
9301 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9302 | struct ofputil_bundle_ctrl_msg *bc) | |
9303 | { | |
9304 | struct ofpbuf *request; | |
9305 | struct ofp14_bundle_ctrl_msg *m; | |
9306 | ||
9307 | switch (ofp_version) { | |
9308 | case OFP10_VERSION: | |
9309 | case OFP11_VERSION: | |
9310 | case OFP12_VERSION: | |
9311 | case OFP13_VERSION: | |
9312 | ovs_fatal(0, "bundles need OpenFlow 1.4 or later " | |
9313 | "(\'-O OpenFlow14\')"); | |
9314 | case OFP14_VERSION: | |
9315 | case OFP15_VERSION: | |
9316 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
9317 | m = ofpbuf_put_zeros(request, sizeof *m); | |
9318 | ||
9319 | m->bundle_id = htonl(bc->bundle_id); | |
9320 | m->type = htons(bc->type); | |
9321 | m->flags = htons(bc->flags); | |
9322 | break; | |
9323 | default: | |
9324 | OVS_NOT_REACHED(); | |
9325 | } | |
9326 | ||
9327 | return request; | |
9328 | } | |
9329 | ||
777af88d AC |
9330 | struct ofpbuf * |
9331 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9332 | struct ofputil_bundle_ctrl_msg *msg) | |
9333 | { | |
9334 | struct ofpbuf *buf; | |
9335 | struct ofp14_bundle_ctrl_msg *m; | |
9336 | ||
9337 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
9338 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
9339 | ||
9340 | m->bundle_id = htonl(msg->bundle_id); | |
9341 | m->type = htons(msg->type); | |
9342 | m->flags = htons(msg->flags); | |
9343 | ||
9344 | return buf; | |
9345 | } | |
9346 | ||
c25ce22d JR |
9347 | /* Return true for bundlable state change requests, false for other messages. |
9348 | */ | |
9349 | static bool | |
9350 | ofputil_is_bundlable(enum ofptype type) | |
9351 | { | |
9352 | switch (type) { | |
9353 | /* Minimum required by OpenFlow 1.4. */ | |
9354 | case OFPTYPE_PORT_MOD: | |
9355 | case OFPTYPE_FLOW_MOD: | |
9356 | return true; | |
9357 | ||
9358 | /* Nice to have later. */ | |
9359 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9360 | case OFPTYPE_GROUP_MOD: | |
9361 | case OFPTYPE_TABLE_MOD: | |
9362 | case OFPTYPE_METER_MOD: | |
9363 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9364 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9365 | |
9366 | /* Not to be bundlable. */ | |
9367 | case OFPTYPE_ECHO_REQUEST: | |
9368 | case OFPTYPE_FEATURES_REQUEST: | |
9369 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9370 | case OFPTYPE_SET_CONFIG: | |
9371 | case OFPTYPE_BARRIER_REQUEST: | |
9372 | case OFPTYPE_ROLE_REQUEST: | |
9373 | case OFPTYPE_ECHO_REPLY: | |
9374 | case OFPTYPE_SET_FLOW_FORMAT: | |
9375 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9376 | case OFPTYPE_SET_CONTROLLER_ID: | |
9377 | case OFPTYPE_FLOW_AGE: | |
9378 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9379 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9380 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9381 | case OFPTYPE_DESC_STATS_REQUEST: | |
9382 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9383 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9384 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9385 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9386 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9387 | case OFPTYPE_PORT_STATS_REQUEST: |
9388 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9389 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9390 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9391 | case OFPTYPE_METER_STATS_REQUEST: | |
9392 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9393 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9394 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9395 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9396 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9397 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9398 | case OFPTYPE_BUNDLE_CONTROL: | |
9399 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9400 | case OFPTYPE_HELLO: | |
9401 | case OFPTYPE_ERROR: | |
9402 | case OFPTYPE_FEATURES_REPLY: | |
9403 | case OFPTYPE_GET_CONFIG_REPLY: | |
9404 | case OFPTYPE_PACKET_IN: | |
9405 | case OFPTYPE_FLOW_REMOVED: | |
9406 | case OFPTYPE_PORT_STATUS: | |
9407 | case OFPTYPE_BARRIER_REPLY: | |
9408 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9409 | case OFPTYPE_DESC_STATS_REPLY: | |
9410 | case OFPTYPE_FLOW_STATS_REPLY: | |
9411 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9412 | case OFPTYPE_PORT_STATS_REPLY: | |
9413 | case OFPTYPE_TABLE_STATS_REPLY: | |
9414 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9415 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9416 | case OFPTYPE_ROLE_REPLY: | |
9417 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9418 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9419 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9420 | case OFPTYPE_GET_ASYNC_REPLY: | |
9421 | case OFPTYPE_GROUP_STATS_REPLY: | |
9422 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9423 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9424 | case OFPTYPE_METER_STATS_REPLY: | |
9425 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9426 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9427 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9428 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9429 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9430 | case OFPTYPE_REQUESTFORWARD: |
4e548ad9 ML |
9431 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9432 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
c25ce22d JR |
9433 | break; |
9434 | } | |
9435 | ||
9436 | return false; | |
9437 | } | |
9438 | ||
777af88d AC |
9439 | enum ofperr |
9440 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 JR |
9441 | struct ofputil_bundle_add_msg *msg, |
9442 | enum ofptype *type_ptr) | |
777af88d AC |
9443 | { |
9444 | const struct ofp14_bundle_ctrl_msg *m; | |
9445 | struct ofpbuf b; | |
9446 | enum ofpraw raw; | |
9447 | size_t inner_len; | |
c25ce22d JR |
9448 | enum ofperr error; |
9449 | enum ofptype type; | |
777af88d AC |
9450 | |
9451 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9452 | raw = ofpraw_pull_assert(&b); | |
9453 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
9454 | ||
9455 | m = ofpbuf_pull(&b, sizeof *m); | |
9456 | msg->bundle_id = ntohl(m->bundle_id); | |
9457 | msg->flags = ntohs(m->flags); | |
9458 | ||
6fd6ed71 | 9459 | msg->msg = b.data; |
46be7132 BP |
9460 | if (msg->msg->version != oh->version) { |
9461 | return OFPERR_NXBFC_BAD_VERSION; | |
9462 | } | |
777af88d | 9463 | inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9464 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9465 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9466 | } | |
be6f6393 JR |
9467 | if (msg->msg->xid != oh->xid) { |
9468 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9469 | } | |
777af88d | 9470 | |
c25ce22d | 9471 | /* Reject unbundlable messages. */ |
7ac27a04 JR |
9472 | if (!type_ptr) { |
9473 | type_ptr = &type; | |
9474 | } | |
9475 | error = ofptype_decode(type_ptr, msg->msg); | |
c25ce22d JR |
9476 | if (error) { |
9477 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9478 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9479 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9480 | } | |
9481 | ||
7ac27a04 | 9482 | if (!ofputil_is_bundlable(*type_ptr)) { |
44648b0f BP |
9483 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
9484 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(*type_ptr)); | |
c25ce22d JR |
9485 | return OFPERR_OFPBFC_MSG_UNSUP; |
9486 | } | |
9487 | ||
777af88d AC |
9488 | return 0; |
9489 | } | |
9490 | ||
9491 | struct ofpbuf * | |
9492 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9493 | struct ofputil_bundle_add_msg *msg) | |
9494 | { | |
9495 | struct ofpbuf *request; | |
9496 | struct ofp14_bundle_ctrl_msg *m; | |
9497 | ||
7b3dca89 JR |
9498 | /* Must use the same xid as the embedded message. */ |
9499 | request = ofpraw_alloc_xid(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
9500 | msg->msg->xid, 0); | |
777af88d AC |
9501 | m = ofpbuf_put_zeros(request, sizeof *m); |
9502 | ||
9503 | m->bundle_id = htonl(msg->bundle_id); | |
9504 | m->flags = htons(msg->flags); | |
9505 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9506 | ||
9507 | return request; | |
9508 | } | |
6159c531 JG |
9509 | |
9510 | static void | |
4e548ad9 | 9511 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9512 | { |
4e548ad9 | 9513 | struct ofputil_tlv_map *map; |
6159c531 JG |
9514 | |
9515 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9516 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9517 | |
9518 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9519 | nx_map->option_class = htons(map->option_class); | |
9520 | nx_map->option_type = map->option_type; | |
9521 | nx_map->option_len = map->option_len; | |
9522 | nx_map->index = htons(map->index); | |
9523 | } | |
9524 | } | |
9525 | ||
9526 | struct ofpbuf * | |
4e548ad9 ML |
9527 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9528 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9529 | { |
9530 | struct ofpbuf *b; | |
4e548ad9 | 9531 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9532 | |
4e548ad9 ML |
9533 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9534 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9535 | nx_ttm->command = htons(ttm->command); | |
9536 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9537 | |
9538 | return b; | |
9539 | } | |
9540 | ||
9541 | static enum ofperr | |
4e548ad9 | 9542 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9543 | struct ovs_list *mappings) |
6159c531 JG |
9544 | { |
9545 | list_init(mappings); | |
9546 | ||
9547 | while (msg->size) { | |
4e548ad9 ML |
9548 | struct nx_tlv_map *nx_map; |
9549 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9550 | |
9551 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9552 | map = xmalloc(sizeof *map); | |
9553 | list_push_back(mappings, &map->list_node); | |
9554 | ||
9555 | map->option_class = ntohs(nx_map->option_class); | |
9556 | map->option_type = nx_map->option_type; | |
9557 | ||
9558 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9559 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9560 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9561 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9562 | map->option_len); |
4e548ad9 ML |
9563 | ofputil_uninit_tlv_table(mappings); |
9564 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9565 | } |
9566 | ||
9567 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9568 | if (map->index >= max_fields) { |
6159c531 | 9569 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9570 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9571 | map->index, max_fields - 1); |
4e548ad9 ML |
9572 | ofputil_uninit_tlv_table(mappings); |
9573 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9574 | } |
9575 | } | |
9576 | ||
9577 | return 0; | |
9578 | } | |
9579 | ||
9580 | enum ofperr | |
4e548ad9 ML |
9581 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9582 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9583 | { |
9584 | struct ofpbuf msg; | |
4e548ad9 | 9585 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 JG |
9586 | |
9587 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9588 | ofpraw_pull_assert(&msg); | |
9589 | ||
4e548ad9 ML |
9590 | nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
9591 | ttm->command = ntohs(nx_ttm->command); | |
9592 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9593 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9594 | "tlv table mod command (%u) is out of range", |
9595 | ttm->command); | |
9596 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9597 | } |
9598 | ||
4e548ad9 ML |
9599 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9600 | &ttm->mappings); | |
6159c531 JG |
9601 | } |
9602 | ||
9603 | struct ofpbuf * | |
4e548ad9 ML |
9604 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9605 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9606 | { |
9607 | struct ofpbuf *b; | |
4e548ad9 | 9608 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9609 | |
4e548ad9 ML |
9610 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9611 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9612 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9613 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9614 | |
4e548ad9 | 9615 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9616 | |
9617 | return b; | |
9618 | } | |
9619 | ||
4e548ad9 | 9620 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9621 | * if successful, otherwise an ofperr. |
9622 | * | |
4e548ad9 ML |
9623 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9624 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9625 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9626 | enum ofperr |
4e548ad9 ML |
9627 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9628 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9629 | { |
9630 | struct ofpbuf msg; | |
4e548ad9 | 9631 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 JG |
9632 | |
9633 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9634 | ofpraw_pull_assert(&msg); | |
9635 | ||
4e548ad9 ML |
9636 | nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
9637 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); | |
9638 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9639 | |
4e548ad9 | 9640 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9641 | } |
9642 | ||
9643 | void | |
4e548ad9 | 9644 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9645 | { |
4e548ad9 | 9646 | struct ofputil_tlv_map *map; |
6159c531 JG |
9647 | |
9648 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9649 | free(map); | |
9650 | } | |
9651 | } | |
98090482 NR |
9652 | |
9653 | /* Decodes the OpenFlow "set async config" request and "get async config | |
9654 | * reply" message in '*oh' into an abstract form in 'master' and 'slave'. | |
9655 | * | |
9656 | * If 'loose' is true, this function ignores properties and values that it does | |
9657 | * not understand, as a controller would want to do when interpreting | |
9658 | * capabilities provided by a switch. If 'loose' is false, this function | |
9659 | * treats unknown properties and values as an error, as a switch would want to | |
9660 | * do when interpreting a configuration request made by a controller. | |
9661 | * | |
d18cc1ee AA |
9662 | * Returns 0 if successful, otherwise an OFPERR_* value. |
9663 | * | |
9664 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
9665 | * the valid range of mask. | |
9666 | * | |
9667 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
9668 | * supported.*/ | |
98090482 NR |
9669 | enum ofperr |
9670 | ofputil_decode_set_async_config(const struct ofp_header *oh, | |
9671 | uint32_t master[OAM_N_TYPES], | |
9672 | uint32_t slave[OAM_N_TYPES], | |
9673 | bool loose) | |
9674 | { | |
9675 | enum ofpraw raw; | |
9676 | struct ofpbuf b; | |
9677 | ||
9678 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9679 | raw = ofpraw_pull_assert(&b); | |
9680 | ||
9681 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
9682 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
9683 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
9684 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
9685 | ||
9686 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
9687 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
9688 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
9689 | ||
9690 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
9691 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
9692 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
9693 | ||
9694 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || | |
9695 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY) { | |
9696 | ||
9697 | while (b.size > 0) { | |
9698 | struct ofp14_async_config_prop_reasons *msg; | |
9699 | struct ofpbuf property; | |
9700 | enum ofperr error; | |
9701 | uint16_t type; | |
9702 | ||
9703 | error = ofputil_pull_property(&b, &property, &type); | |
9704 | if (error) { | |
9705 | return error; | |
9706 | } | |
9707 | ||
9708 | msg = property.data; | |
9709 | ||
9710 | if (property.size != sizeof *msg) { | |
9711 | return OFPERR_OFPBRC_BAD_LEN; | |
9712 | } | |
9713 | ||
d18cc1ee AA |
9714 | if (!loose) { |
9715 | error = ofputil_check_mask(type, ntohl(msg->mask)); | |
9716 | if (error) { | |
9717 | return error; | |
9718 | } | |
9719 | } | |
9720 | ||
98090482 NR |
9721 | switch (type) { |
9722 | case OFPACPT_PACKET_IN_SLAVE: | |
9723 | slave[OAM_PACKET_IN] = ntohl(msg->mask); | |
9724 | break; | |
9725 | ||
9726 | case OFPACPT_PACKET_IN_MASTER: | |
9727 | master[OAM_PACKET_IN] = ntohl(msg->mask); | |
9728 | break; | |
9729 | ||
9730 | case OFPACPT_PORT_STATUS_SLAVE: | |
9731 | slave[OAM_PORT_STATUS] = ntohl(msg->mask); | |
9732 | break; | |
9733 | ||
9734 | case OFPACPT_PORT_STATUS_MASTER: | |
9735 | master[OAM_PORT_STATUS] = ntohl(msg->mask); | |
9736 | break; | |
9737 | ||
9738 | case OFPACPT_FLOW_REMOVED_SLAVE: | |
9739 | slave[OAM_FLOW_REMOVED] = ntohl(msg->mask); | |
9740 | break; | |
9741 | ||
9742 | case OFPACPT_FLOW_REMOVED_MASTER: | |
9743 | master[OAM_FLOW_REMOVED] = ntohl(msg->mask); | |
9744 | break; | |
9745 | ||
9746 | case OFPACPT_ROLE_STATUS_SLAVE: | |
9747 | slave[OAM_ROLE_STATUS] = ntohl(msg->mask); | |
9748 | break; | |
9749 | ||
9750 | case OFPACPT_ROLE_STATUS_MASTER: | |
9751 | master[OAM_ROLE_STATUS] = ntohl(msg->mask); | |
9752 | break; | |
9753 | ||
9754 | case OFPACPT_TABLE_STATUS_SLAVE: | |
9755 | slave[OAM_TABLE_STATUS] = ntohl(msg->mask); | |
9756 | break; | |
9757 | ||
9758 | case OFPACPT_TABLE_STATUS_MASTER: | |
9759 | master[OAM_TABLE_STATUS] = ntohl(msg->mask); | |
9760 | break; | |
9761 | ||
9762 | case OFPACPT_REQUESTFORWARD_SLAVE: | |
9763 | slave[OAM_REQUESTFORWARD] = ntohl(msg->mask); | |
9764 | break; | |
9765 | ||
9766 | case OFPACPT_REQUESTFORWARD_MASTER: | |
9767 | master[OAM_REQUESTFORWARD] = ntohl(msg->mask); | |
9768 | break; | |
9769 | ||
9770 | default: | |
d18cc1ee | 9771 | error = loose ? 0 : OFPERR_OFPACFC_UNSUPPORTED; |
98090482 NR |
9772 | return error; |
9773 | } | |
9774 | } | |
9775 | } else { | |
9776 | return OFPERR_OFPBRC_BAD_VERSION; | |
9777 | } | |
9778 | return 0; | |
9779 | } | |
9780 | ||
9781 | /* Append all asynchronous configuration properties in GET_ASYNC_REPLY | |
9782 | * message, describing if various set of asynchronous messages are enabled | |
9783 | * or not. */ | |
9784 | static enum ofperr | |
9785 | ofputil_get_async_reply(struct ofpbuf *buf, const uint32_t master_mask, | |
9786 | const uint32_t slave_mask, const uint32_t type) | |
9787 | { | |
9788 | int role; | |
9789 | ||
9790 | for (role = 0; role < 2; role++) { | |
9791 | struct ofp14_async_config_prop_reasons *msg; | |
9792 | ||
9793 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9794 | ||
9795 | switch (type) { | |
9796 | case OAM_PACKET_IN: | |
9797 | msg->type = (role ? htons(OFPACPT_PACKET_IN_SLAVE) | |
9798 | : htons(OFPACPT_PACKET_IN_MASTER)); | |
9799 | break; | |
9800 | ||
9801 | case OAM_PORT_STATUS: | |
9802 | msg->type = (role ? htons(OFPACPT_PORT_STATUS_SLAVE) | |
9803 | : htons(OFPACPT_PORT_STATUS_MASTER)); | |
9804 | break; | |
9805 | ||
9806 | case OAM_FLOW_REMOVED: | |
9807 | msg->type = (role ? htons(OFPACPT_FLOW_REMOVED_SLAVE) | |
9808 | : htons(OFPACPT_FLOW_REMOVED_MASTER)); | |
9809 | break; | |
9810 | ||
9811 | case OAM_ROLE_STATUS: | |
9812 | msg->type = (role ? htons(OFPACPT_ROLE_STATUS_SLAVE) | |
9813 | : htons(OFPACPT_ROLE_STATUS_MASTER)); | |
9814 | break; | |
9815 | ||
9816 | case OAM_TABLE_STATUS: | |
9817 | msg->type = (role ? htons(OFPACPT_TABLE_STATUS_SLAVE) | |
9818 | : htons(OFPACPT_TABLE_STATUS_MASTER)); | |
9819 | break; | |
9820 | ||
9821 | case OAM_REQUESTFORWARD: | |
9822 | msg->type = (role ? htons(OFPACPT_REQUESTFORWARD_SLAVE) | |
9823 | : htons(OFPACPT_REQUESTFORWARD_MASTER)); | |
9824 | break; | |
9825 | ||
9826 | default: | |
9827 | return OFPERR_OFPBRC_BAD_TYPE; | |
9828 | } | |
9829 | msg->length = htons(sizeof *msg); | |
9830 | msg->mask = (role ? htonl(slave_mask) : htonl(master_mask)); | |
9831 | } | |
9832 | ||
9833 | return 0; | |
9834 | } | |
9835 | ||
9836 | /* Returns a OpenFlow message that encodes 'asynchronous configuration' properly | |
9837 | * as a reply to get async config request. */ | |
9838 | struct ofpbuf * | |
9839 | ofputil_encode_get_async_config(const struct ofp_header *oh, | |
9840 | uint32_t master[OAM_N_TYPES], | |
9841 | uint32_t slave[OAM_N_TYPES]) | |
9842 | { | |
9843 | struct ofpbuf *buf; | |
9844 | uint32_t type; | |
9845 | ||
9846 | buf = ofpraw_alloc_reply((oh->version < OFP14_VERSION | |
9847 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
9848 | : OFPRAW_OFPT14_GET_ASYNC_REPLY), oh, 0); | |
9849 | ||
9850 | if (oh->version < OFP14_VERSION) { | |
9851 | struct nx_async_config *msg; | |
9852 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9853 | ||
9854 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
9855 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
9856 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
9857 | ||
9858 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
9859 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
9860 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
9861 | } else if (oh->version == OFP14_VERSION) { | |
9862 | for (type = 0; type < OAM_N_TYPES; type++) { | |
9863 | ofputil_get_async_reply(buf, master[type], slave[type], type); | |
9864 | } | |
9865 | } | |
9866 | ||
9867 | return buf; | |
9868 | } |