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fa37b408 | 1 | /* |
18080541 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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" | |
4ffd1b43 | 44 | #include "unaligned.h" |
e41a9130 | 45 | #include "type-props.h" |
e6211adc | 46 | #include "openvswitch/vlog.h" |
5deff5aa | 47 | #include "bitmap.h" |
fa37b408 | 48 | |
d98e6007 | 49 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
50 | |
51 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
52 | * in the peer and so there's not much point in showing a lot of them. */ | |
53 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
54 | ||
3c1bb396 BP |
55 | static enum ofputil_table_miss ofputil_table_miss_from_config( |
56 | ovs_be32 config_, enum ofp_version); | |
57 | ||
9a4eddbb BP |
58 | struct ofp_prop_header { |
59 | ovs_be16 type; | |
60 | ovs_be16 len; | |
61 | }; | |
62 | ||
bc65c25a SH |
63 | struct ofp_prop_experimenter { |
64 | ovs_be16 type; /* OFP*_EXPERIMENTER. */ | |
65 | ovs_be16 length; /* Length in bytes of this property. */ | |
66 | ovs_be32 experimenter; /* Experimenter ID which takes the same form as | |
67 | * in struct ofp_experimenter_header. */ | |
68 | ovs_be32 exp_type; /* Experimenter defined. */ | |
69 | }; | |
70 | ||
9a4eddbb BP |
71 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
72 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
73 | * nonnull, the entire property, including the header, in '*property'. Returns | |
72b25867 BP |
74 | * 0 if successful, otherwise an error code. |
75 | * | |
76 | * This function pulls the property's stated size padded out to a multiple of | |
77 | * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so | |
78 | * you can use ofputil_pull_property() for that case. */ | |
9a4eddbb | 79 | static enum ofperr |
72b25867 BP |
80 | ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property, |
81 | unsigned int alignment, uint16_t *typep) | |
9a4eddbb BP |
82 | { |
83 | struct ofp_prop_header *oph; | |
72b25867 | 84 | unsigned int padded_len; |
9a4eddbb BP |
85 | unsigned int len; |
86 | ||
6fd6ed71 | 87 | if (msg->size < sizeof *oph) { |
9a4eddbb BP |
88 | return OFPERR_OFPBPC_BAD_LEN; |
89 | } | |
90 | ||
6fd6ed71 | 91 | oph = msg->data; |
9a4eddbb | 92 | len = ntohs(oph->len); |
72b25867 | 93 | padded_len = ROUND_UP(len, alignment); |
6fd6ed71 | 94 | if (len < sizeof *oph || padded_len > msg->size) { |
9a4eddbb BP |
95 | return OFPERR_OFPBPC_BAD_LEN; |
96 | } | |
97 | ||
98 | *typep = ntohs(oph->type); | |
99 | if (property) { | |
6fd6ed71 | 100 | ofpbuf_use_const(property, msg->data, len); |
9a4eddbb | 101 | } |
72b25867 | 102 | ofpbuf_pull(msg, padded_len); |
9a4eddbb BP |
103 | return 0; |
104 | } | |
105 | ||
72b25867 BP |
106 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
107 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
108 | * nonnull, the entire property, including the header, in '*property'. Returns | |
109 | * 0 if successful, otherwise an error code. | |
110 | * | |
111 | * This function pulls the property's stated size padded out to a multiple of | |
112 | * 8 bytes, which is the common case for OpenFlow properties. */ | |
113 | static enum ofperr | |
114 | ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property, | |
115 | uint16_t *typep) | |
116 | { | |
117 | return ofputil_pull_property__(msg, property, 8, typep); | |
118 | } | |
119 | ||
cab50449 | 120 | static void OVS_PRINTF_FORMAT(2, 3) |
9a4eddbb BP |
121 | log_property(bool loose, const char *message, ...) |
122 | { | |
123 | enum vlog_level level = loose ? VLL_DBG : VLL_WARN; | |
124 | if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) { | |
125 | va_list args; | |
126 | ||
127 | va_start(args, message); | |
128 | vlog_valist(THIS_MODULE, level, message, args); | |
129 | va_end(args); | |
130 | } | |
131 | } | |
8c3cc785 | 132 | |
3c4e10fb BP |
133 | static size_t |
134 | start_property(struct ofpbuf *msg, uint16_t type) | |
135 | { | |
6fd6ed71 | 136 | size_t start_ofs = msg->size; |
3c4e10fb BP |
137 | struct ofp_prop_header *oph; |
138 | ||
139 | oph = ofpbuf_put_uninit(msg, sizeof *oph); | |
140 | oph->type = htons(type); | |
141 | oph->len = htons(4); /* May be updated later by end_property(). */ | |
142 | return start_ofs; | |
143 | } | |
144 | ||
145 | static void | |
146 | end_property(struct ofpbuf *msg, size_t start_ofs) | |
147 | { | |
148 | struct ofp_prop_header *oph; | |
149 | ||
150 | oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph); | |
6fd6ed71 PS |
151 | oph->len = htons(msg->size - start_ofs); |
152 | ofpbuf_padto(msg, ROUND_UP(msg->size, 8)); | |
3c4e10fb BP |
153 | } |
154 | ||
155 | static void | |
156 | put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap) | |
157 | { | |
158 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
159 | start_property(msg, rightmost_1bit_idx(bitmap)); | |
160 | } | |
161 | } | |
162 | ||
0596e897 BP |
163 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
164 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
165 | * is wildcarded. | |
166 | * | |
167 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
168 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
169 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
170 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
171 | * wildcarded. */ | |
172 | ovs_be32 | |
173 | ofputil_wcbits_to_netmask(int wcbits) | |
174 | { | |
175 | wcbits &= 0x3f; | |
176 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
177 | } | |
178 | ||
179 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
180 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
181 | * between 0 and 32 inclusive. | |
182 | * | |
183 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
184 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
185 | int |
186 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
187 | { | |
aad29cd1 | 188 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
189 | } |
190 | ||
eec25dc1 | 191 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 192 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
193 | * responsibility to handle the special case where the flow match's dl_vlan is |
194 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 195 | void |
eec25dc1 | 196 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 197 | { |
ac6073e3 | 198 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 31); |
a877206f | 199 | |
81a76618 | 200 | /* Initialize most of wc. */ |
f9ba8dad | 201 | flow_wildcards_init_catchall(wc); |
bad68a99 | 202 | |
0bdc4bec | 203 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 204 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 205 | } |
5d9499c4 BP |
206 | |
207 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 208 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 209 | } |
7257b535 | 210 | |
851d3105 | 211 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 212 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 213 | } |
26720e24 BP |
214 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
215 | >> OFPFW10_NW_SRC_SHIFT); | |
216 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
217 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 218 | |
eec25dc1 | 219 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 220 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 221 | } |
eec25dc1 | 222 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 223 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
224 | } |
225 | ||
eec25dc1 | 226 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
26720e24 | 227 | memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN); |
73c0ce34 | 228 | } |
eec25dc1 | 229 | if (!(ofpfw & OFPFW10_DL_DST)) { |
26720e24 | 230 | memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN); |
d8ae4d67 | 231 | } |
e2170cff | 232 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 233 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 234 | } |
d8ae4d67 | 235 | |
eb6f28db | 236 | /* VLAN TCI mask. */ |
eec25dc1 | 237 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 238 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 239 | } |
eec25dc1 | 240 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 241 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
242 | } |
243 | } | |
244 | ||
81a76618 | 245 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 246 | void |
81a76618 BP |
247 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
248 | struct match *match) | |
249 | { | |
250 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
251 | ||
252 | /* Initialize match->wc. */ | |
296e07ac | 253 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
254 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
255 | ||
256 | /* Initialize most of match->flow. */ | |
257 | match->flow.nw_src = ofmatch->nw_src; | |
258 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 259 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
260 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
261 | match->flow.tp_src = ofmatch->tp_src; | |
262 | match->flow.tp_dst = ofmatch->tp_dst; | |
263 | memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN); | |
264 | memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN); | |
265 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; | |
266 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 267 | |
66642cb4 | 268 | /* Translate VLANs. */ |
0c436519 | 269 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 270 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
271 | /* Match only packets without 802.1Q header. |
272 | * | |
eec25dc1 | 273 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 274 | * |
eec25dc1 | 275 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
276 | * because we can't have a specific PCP without an 802.1Q header. |
277 | * However, older versions of OVS treated this as matching packets | |
278 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
279 | match->flow.vlan_tci = htons(0); |
280 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
281 | } else { |
282 | ovs_be16 vid, pcp, tci; | |
bf062576 | 283 | uint16_t hpcp; |
47271d0d | 284 | |
81a76618 | 285 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
286 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
287 | pcp = htons(hpcp); | |
47271d0d | 288 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 289 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
290 | } |
291 | ||
d8ae4d67 | 292 | /* Clean up. */ |
81a76618 | 293 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
294 | } |
295 | ||
81a76618 | 296 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 297 | void |
81a76618 BP |
298 | ofputil_match_to_ofp10_match(const struct match *match, |
299 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 300 | { |
81a76618 | 301 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 302 | uint32_t ofpfw; |
d8ae4d67 | 303 | |
66642cb4 | 304 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 305 | ofpfw = 0; |
4e022ec0 | 306 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
307 | ofpfw |= OFPFW10_IN_PORT; |
308 | } | |
26720e24 | 309 | if (!wc->masks.dl_type) { |
27cafc5f BP |
310 | ofpfw |= OFPFW10_DL_TYPE; |
311 | } | |
26720e24 | 312 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
313 | ofpfw |= OFPFW10_NW_PROTO; |
314 | } | |
26720e24 | 315 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 316 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 317 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 318 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 319 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 320 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 321 | } |
26720e24 | 322 | if (!wc->masks.tp_src) { |
eec25dc1 | 323 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 324 | } |
26720e24 | 325 | if (!wc->masks.tp_dst) { |
eec25dc1 | 326 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 327 | } |
26720e24 | 328 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 329 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 330 | } |
26720e24 | 331 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 332 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 333 | } |
ff9d3826 | 334 | |
66642cb4 | 335 | /* Translate VLANs. */ |
81a76618 BP |
336 | ofmatch->dl_vlan = htons(0); |
337 | ofmatch->dl_vlan_pcp = 0; | |
338 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 339 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
340 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
341 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
342 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
41ca9a1e | 343 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 344 | } else { |
81a76618 | 345 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 346 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 347 | } else { |
81a76618 | 348 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
349 | } |
350 | ||
81a76618 | 351 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 352 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 353 | } else { |
81a76618 | 354 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
355 | } |
356 | } | |
357 | ||
358 | /* Compose most of the match structure. */ | |
81a76618 | 359 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 360 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
81a76618 BP |
361 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
362 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); | |
363 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); | |
364 | ofmatch->nw_src = match->flow.nw_src; | |
365 | ofmatch->nw_dst = match->flow.nw_dst; | |
366 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
367 | ofmatch->nw_proto = match->flow.nw_proto; | |
368 | ofmatch->tp_src = match->flow.tp_src; | |
369 | ofmatch->tp_dst = match->flow.tp_dst; | |
370 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
371 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
372 | } |
373 | ||
aa319503 | 374 | enum ofperr |
81a76618 BP |
375 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
376 | uint16_t *padded_match_len) | |
aa319503 | 377 | { |
6fd6ed71 | 378 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 379 | uint16_t match_len; |
aa319503 | 380 | |
6fd6ed71 | 381 | if (buf->size < sizeof *omh) { |
aa319503 BP |
382 | return OFPERR_OFPBMC_BAD_LEN; |
383 | } | |
384 | ||
36a16881 SH |
385 | match_len = ntohs(omh->length); |
386 | ||
aa319503 | 387 | switch (ntohs(omh->type)) { |
36a16881 SH |
388 | case OFPMT_STANDARD: { |
389 | struct ofp11_match *om; | |
390 | ||
6fd6ed71 | 391 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
392 | return OFPERR_OFPBMC_BAD_LEN; |
393 | } | |
394 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
395 | if (padded_match_len) { |
396 | *padded_match_len = match_len; | |
397 | } | |
81a76618 | 398 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
399 | } |
400 | ||
401 | case OFPMT_OXM: | |
402 | if (padded_match_len) { | |
403 | *padded_match_len = ROUND_UP(match_len, 8); | |
404 | } | |
81a76618 | 405 | return oxm_pull_match(buf, match); |
aa319503 BP |
406 | |
407 | default: | |
408 | return OFPERR_OFPBMC_BAD_TYPE; | |
409 | } | |
410 | } | |
411 | ||
3f0f48cf YT |
412 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
413 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 414 | enum ofperr |
81a76618 BP |
415 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
416 | struct match *match) | |
410698cf | 417 | { |
81a76618 | 418 | uint16_t wc = ntohl(ofmatch->wildcards); |
410698cf BP |
419 | uint8_t dl_src_mask[ETH_ADDR_LEN]; |
420 | uint8_t dl_dst_mask[ETH_ADDR_LEN]; | |
8087f5ff | 421 | bool ipv4, arp, rarp; |
410698cf BP |
422 | int i; |
423 | ||
81a76618 | 424 | match_init_catchall(match); |
410698cf BP |
425 | |
426 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 427 | ofp_port_t ofp_port; |
410698cf BP |
428 | enum ofperr error; |
429 | ||
81a76618 | 430 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
431 | if (error) { |
432 | return OFPERR_OFPBMC_BAD_VALUE; | |
433 | } | |
81a76618 | 434 | match_set_in_port(match, ofp_port); |
410698cf BP |
435 | } |
436 | ||
437 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 438 | dl_src_mask[i] = ~ofmatch->dl_src_mask[i]; |
410698cf | 439 | } |
81a76618 | 440 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); |
410698cf BP |
441 | |
442 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 443 | dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i]; |
410698cf | 444 | } |
81a76618 | 445 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); |
410698cf BP |
446 | |
447 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 448 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 449 | /* Match only packets without a VLAN tag. */ |
81a76618 | 450 | match->flow.vlan_tci = htons(0); |
b8266395 | 451 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 452 | } else { |
81a76618 | 453 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 454 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
455 | match->flow.vlan_tci = htons(VLAN_CFI); |
456 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
457 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 458 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
459 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
460 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
461 | } else { |
462 | /* Invalid VID. */ | |
463 | return OFPERR_OFPBMC_BAD_VALUE; | |
464 | } | |
465 | ||
466 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
467 | if (ofmatch->dl_vlan_pcp <= 7) { |
468 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
469 | << VLAN_PCP_SHIFT); | |
470 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
471 | } else { |
472 | /* Invalid PCP. */ | |
473 | return OFPERR_OFPBMC_BAD_VALUE; | |
474 | } | |
475 | } | |
476 | } | |
477 | } | |
478 | ||
479 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
480 | match_set_dl_type(match, |
481 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
482 | } |
483 | ||
81a76618 BP |
484 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
485 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 486 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
487 | |
488 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 489 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
490 | /* Invalid TOS. */ |
491 | return OFPERR_OFPBMC_BAD_VALUE; | |
492 | } | |
493 | ||
81a76618 | 494 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
495 | } |
496 | ||
8087f5ff | 497 | if (ipv4 || arp || rarp) { |
410698cf | 498 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 499 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 500 | } |
81a76618 BP |
501 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
502 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
503 | } |
504 | ||
505 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
506 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 507 | switch (match->flow.nw_proto) { |
410698cf BP |
508 | case IPPROTO_ICMP: |
509 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
510 | * | |
511 | * The tp_src and tp_dst fields will be ignored unless the | |
512 | * network protocol specified is as TCP, UDP or SCTP. | |
513 | * | |
514 | * but I'm pretty sure we should support ICMP too, otherwise | |
515 | * that's a regression from OF1.0. */ | |
516 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 517 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 518 | if (icmp_type < 0x100) { |
81a76618 | 519 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
520 | } else { |
521 | return OFPERR_OFPBMC_BAD_FIELD; | |
522 | } | |
523 | } | |
524 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 525 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 526 | if (icmp_code < 0x100) { |
81a76618 | 527 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
528 | } else { |
529 | return OFPERR_OFPBMC_BAD_FIELD; | |
530 | } | |
531 | } | |
532 | break; | |
533 | ||
534 | case IPPROTO_TCP: | |
535 | case IPPROTO_UDP: | |
0d56eaf2 | 536 | case IPPROTO_SCTP: |
410698cf | 537 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 538 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
539 | } |
540 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 541 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
542 | } |
543 | break; | |
544 | ||
410698cf BP |
545 | default: |
546 | /* OF1.1 says explicitly to ignore this. */ | |
547 | break; | |
548 | } | |
549 | } | |
550 | ||
b02475c5 | 551 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 552 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 553 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
554 | } |
555 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 556 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
557 | } |
558 | } | |
559 | ||
81a76618 BP |
560 | match_set_metadata_masked(match, ofmatch->metadata, |
561 | ~ofmatch->metadata_mask); | |
410698cf BP |
562 | |
563 | return 0; | |
564 | } | |
565 | ||
81a76618 | 566 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 567 | void |
81a76618 BP |
568 | ofputil_match_to_ofp11_match(const struct match *match, |
569 | struct ofp11_match *ofmatch) | |
410698cf BP |
570 | { |
571 | uint32_t wc = 0; | |
572 | int i; | |
573 | ||
81a76618 BP |
574 | memset(ofmatch, 0, sizeof *ofmatch); |
575 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
576 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 577 | |
4e022ec0 | 578 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
579 | wc |= OFPFW11_IN_PORT; |
580 | } else { | |
4e022ec0 | 581 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
582 | } |
583 | ||
81a76618 | 584 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
410698cf | 585 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 586 | ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i]; |
410698cf BP |
587 | } |
588 | ||
81a76618 | 589 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); |
410698cf | 590 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 591 | ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i]; |
410698cf BP |
592 | } |
593 | ||
81a76618 | 594 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 595 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
596 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
597 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
598 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
599 | wc |= OFPFW11_DL_VLAN_PCP; |
600 | } else { | |
81a76618 BP |
601 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
602 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 603 | } else { |
81a76618 | 604 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
605 | } |
606 | ||
81a76618 | 607 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
608 | wc |= OFPFW11_DL_VLAN_PCP; |
609 | } else { | |
81a76618 | 610 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
611 | } |
612 | } | |
613 | ||
81a76618 | 614 | if (!match->wc.masks.dl_type) { |
410698cf BP |
615 | wc |= OFPFW11_DL_TYPE; |
616 | } else { | |
81a76618 | 617 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
618 | } |
619 | ||
81a76618 | 620 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
621 | wc |= OFPFW11_NW_TOS; |
622 | } else { | |
81a76618 | 623 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
624 | } |
625 | ||
81a76618 | 626 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
627 | wc |= OFPFW11_NW_PROTO; |
628 | } else { | |
81a76618 | 629 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
630 | } |
631 | ||
81a76618 BP |
632 | ofmatch->nw_src = match->flow.nw_src; |
633 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
634 | ofmatch->nw_dst = match->flow.nw_dst; | |
635 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 636 | |
81a76618 | 637 | if (!match->wc.masks.tp_src) { |
410698cf BP |
638 | wc |= OFPFW11_TP_SRC; |
639 | } else { | |
81a76618 | 640 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
641 | } |
642 | ||
81a76618 | 643 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
644 | wc |= OFPFW11_TP_DST; |
645 | } else { | |
81a76618 | 646 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
647 | } |
648 | ||
8bfd0fda | 649 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
650 | wc |= OFPFW11_MPLS_LABEL; |
651 | } else { | |
8bfd0fda BP |
652 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
653 | match->flow.mpls_lse[0])); | |
097d4939 JR |
654 | } |
655 | ||
8bfd0fda | 656 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
657 | wc |= OFPFW11_MPLS_TC; |
658 | } else { | |
8bfd0fda | 659 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 660 | } |
410698cf | 661 | |
81a76618 BP |
662 | ofmatch->metadata = match->flow.metadata; |
663 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 664 | |
81a76618 | 665 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
666 | } |
667 | ||
75fa58f8 BP |
668 | /* Returns the "typical" length of a match for 'protocol', for use in |
669 | * estimating space to preallocate. */ | |
670 | int | |
671 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
672 | { | |
673 | switch (protocol) { | |
674 | case OFPUTIL_P_OF10_STD: | |
675 | case OFPUTIL_P_OF10_STD_TID: | |
676 | return sizeof(struct ofp10_match); | |
677 | ||
678 | case OFPUTIL_P_OF10_NXM: | |
679 | case OFPUTIL_P_OF10_NXM_TID: | |
680 | return NXM_TYPICAL_LEN; | |
681 | ||
682 | case OFPUTIL_P_OF11_STD: | |
683 | return sizeof(struct ofp11_match); | |
684 | ||
685 | case OFPUTIL_P_OF12_OXM: | |
686 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 687 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 688 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
689 | return NXM_TYPICAL_LEN; |
690 | ||
691 | default: | |
428b2edd | 692 | OVS_NOT_REACHED(); |
75fa58f8 BP |
693 | } |
694 | } | |
695 | ||
696 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
697 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
698 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
699 | * in OpenFlow 1.1 or later. | |
700 | * | |
701 | * This function can cause 'b''s data to be reallocated. | |
702 | * | |
703 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
704 | * returns zero. */ | |
705 | int | |
706 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
707 | enum ofputil_protocol protocol) | |
708 | { | |
709 | switch (protocol) { | |
710 | case OFPUTIL_P_OF10_STD: | |
711 | case OFPUTIL_P_OF10_STD_TID: | |
712 | case OFPUTIL_P_OF10_NXM: | |
713 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 714 | OVS_NOT_REACHED(); |
75fa58f8 BP |
715 | |
716 | case OFPUTIL_P_OF11_STD: { | |
717 | struct ofp11_match *om; | |
718 | ||
719 | /* Make sure that no padding is needed. */ | |
720 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
721 | ||
722 | om = ofpbuf_put_uninit(b, sizeof *om); | |
723 | ofputil_match_to_ofp11_match(match, om); | |
724 | return sizeof *om; | |
725 | } | |
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: |
9d84066c BP |
731 | return oxm_put_match(b, match, |
732 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
733 | } |
734 | ||
428b2edd | 735 | OVS_NOT_REACHED(); |
75fa58f8 BP |
736 | } |
737 | ||
36956a7d | 738 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
739 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
740 | * structure. */ | |
36956a7d BP |
741 | ovs_be16 |
742 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
743 | { | |
744 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
745 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
746 | : flow_dl_type); | |
747 | } | |
748 | ||
eec25dc1 | 749 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
750 | * structure, returns the corresponding 'dl_type' value for use in struct |
751 | * flow. */ | |
752 | ovs_be16 | |
753 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
754 | { | |
755 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
756 | ? htons(FLOW_DL_TYPE_NONE) | |
757 | : ofp_dl_type); | |
758 | } | |
2e4f5fcf | 759 | \f |
27527aa0 | 760 | /* Protocols. */ |
7fa91113 | 761 | |
27527aa0 BP |
762 | struct proto_abbrev { |
763 | enum ofputil_protocol protocol; | |
764 | const char *name; | |
765 | }; | |
766 | ||
767 | /* Most users really don't care about some of the differences between | |
aa233d57 | 768 | * protocols. These abbreviations help with that. */ |
27527aa0 | 769 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
770 | { OFPUTIL_P_ANY, "any" }, |
771 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
772 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
773 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
774 | }; |
775 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
776 | ||
777 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 778 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 779 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 780 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 781 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 782 | OFPUTIL_P_OF11_STD, |
85813857 BP |
783 | OFPUTIL_P_OF10_NXM, |
784 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
785 | }; |
786 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
787 | ||
4f13da56 BP |
788 | /* Returns the set of ofputil_protocols that are supported with the given |
789 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
790 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
791 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 792 | enum ofputil_protocol |
4f13da56 | 793 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
794 | { |
795 | switch (version) { | |
2e3fa633 | 796 | case OFP10_VERSION: |
4f13da56 | 797 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
798 | case OFP11_VERSION: |
799 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 800 | case OFP12_VERSION: |
85813857 | 801 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
802 | case OFP13_VERSION: |
803 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
804 | case OFP14_VERSION: |
805 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
806 | case OFP15_VERSION: |
807 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
808 | default: |
809 | return 0; | |
27527aa0 BP |
810 | } |
811 | } | |
812 | ||
4f13da56 BP |
813 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
814 | * connection that has negotiated the given 'version'. 'version' should | |
815 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
816 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
817 | * outside the valid range. */ | |
818 | enum ofputil_protocol | |
819 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
820 | { | |
821 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
822 | } | |
823 | ||
44d3732d | 824 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 825 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 826 | enum ofp_version |
9e1fd49b BP |
827 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
828 | { | |
829 | switch (protocol) { | |
85813857 BP |
830 | case OFPUTIL_P_OF10_STD: |
831 | case OFPUTIL_P_OF10_STD_TID: | |
832 | case OFPUTIL_P_OF10_NXM: | |
833 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 834 | return OFP10_VERSION; |
75fa58f8 BP |
835 | case OFPUTIL_P_OF11_STD: |
836 | return OFP11_VERSION; | |
85813857 | 837 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 838 | return OFP12_VERSION; |
2e1ae200 JR |
839 | case OFPUTIL_P_OF13_OXM: |
840 | return OFP13_VERSION; | |
c37c0382 AC |
841 | case OFPUTIL_P_OF14_OXM: |
842 | return OFP14_VERSION; | |
42dccab5 BP |
843 | case OFPUTIL_P_OF15_OXM: |
844 | return OFP15_VERSION; | |
9e1fd49b BP |
845 | } |
846 | ||
428b2edd | 847 | OVS_NOT_REACHED(); |
9e1fd49b BP |
848 | } |
849 | ||
4f13da56 BP |
850 | /* Returns a bitmap of OpenFlow versions that are supported by at |
851 | * least one of the 'protocols'. */ | |
852 | uint32_t | |
853 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
854 | { | |
855 | uint32_t bitmap = 0; | |
856 | ||
857 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
858 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
859 | ||
860 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
861 | } | |
862 | ||
863 | return bitmap; | |
864 | } | |
865 | ||
866 | /* Returns the set of protocols that are supported on top of the | |
867 | * OpenFlow versions included in 'bitmap'. */ | |
868 | enum ofputil_protocol | |
869 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
870 | { | |
871 | enum ofputil_protocol protocols = 0; | |
872 | ||
873 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
874 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
875 | ||
876 | protocols |= ofputil_protocols_from_ofp_version(version); | |
877 | } | |
878 | ||
879 | return protocols; | |
880 | } | |
881 | ||
27527aa0 BP |
882 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
883 | * otherwise. */ | |
7fa91113 | 884 | bool |
27527aa0 | 885 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 886 | { |
27527aa0 BP |
887 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
888 | } | |
889 | ||
890 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
891 | * extension turned on or off if 'enable' is true or false, respectively. | |
892 | * | |
893 | * This extension is only useful for protocols whose "standard" version does | |
894 | * not allow specific tables to be modified. In particular, this is true of | |
895 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
896 | * specifies a table ID and so there is no need for such an extension. When | |
897 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
898 | * extension, this function just returns its 'protocol' argument unchanged | |
899 | * regardless of the value of 'enable'. */ | |
900 | enum ofputil_protocol | |
901 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
902 | { | |
903 | switch (protocol) { | |
85813857 BP |
904 | case OFPUTIL_P_OF10_STD: |
905 | case OFPUTIL_P_OF10_STD_TID: | |
906 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 907 | |
85813857 BP |
908 | case OFPUTIL_P_OF10_NXM: |
909 | case OFPUTIL_P_OF10_NXM_TID: | |
910 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 911 | |
75fa58f8 BP |
912 | case OFPUTIL_P_OF11_STD: |
913 | return OFPUTIL_P_OF11_STD; | |
914 | ||
85813857 BP |
915 | case OFPUTIL_P_OF12_OXM: |
916 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 917 | |
2e1ae200 JR |
918 | case OFPUTIL_P_OF13_OXM: |
919 | return OFPUTIL_P_OF13_OXM; | |
920 | ||
c37c0382 AC |
921 | case OFPUTIL_P_OF14_OXM: |
922 | return OFPUTIL_P_OF14_OXM; | |
923 | ||
42dccab5 BP |
924 | case OFPUTIL_P_OF15_OXM: |
925 | return OFPUTIL_P_OF15_OXM; | |
926 | ||
27527aa0 | 927 | default: |
428b2edd | 928 | OVS_NOT_REACHED(); |
7fa91113 | 929 | } |
27527aa0 | 930 | } |
7fa91113 | 931 | |
27527aa0 BP |
932 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
933 | * some extension to a standard protocol version, the return value is the | |
934 | * standard version of that protocol without any extension. If 'protocol' is a | |
935 | * standard protocol version, returns 'protocol' unchanged. */ | |
936 | enum ofputil_protocol | |
937 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
938 | { | |
939 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
940 | } |
941 | ||
27527aa0 BP |
942 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
943 | enum ofputil_protocol | |
944 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
945 | enum ofputil_protocol new_base) | |
7fa91113 | 946 | { |
27527aa0 BP |
947 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
948 | ||
949 | switch (new_base) { | |
85813857 BP |
950 | case OFPUTIL_P_OF10_STD: |
951 | case OFPUTIL_P_OF10_STD_TID: | |
952 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 953 | |
85813857 BP |
954 | case OFPUTIL_P_OF10_NXM: |
955 | case OFPUTIL_P_OF10_NXM_TID: | |
956 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 957 | |
75fa58f8 BP |
958 | case OFPUTIL_P_OF11_STD: |
959 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
960 | ||
85813857 BP |
961 | case OFPUTIL_P_OF12_OXM: |
962 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 963 | |
2e1ae200 JR |
964 | case OFPUTIL_P_OF13_OXM: |
965 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
966 | ||
c37c0382 AC |
967 | case OFPUTIL_P_OF14_OXM: |
968 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
969 | ||
42dccab5 BP |
970 | case OFPUTIL_P_OF15_OXM: |
971 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
972 | ||
7fa91113 | 973 | default: |
428b2edd | 974 | OVS_NOT_REACHED(); |
7fa91113 BP |
975 | } |
976 | } | |
977 | ||
27527aa0 BP |
978 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
979 | * 'protocol' is either a single protocol or it is a combination of protocols | |
980 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
981 | const char * | |
982 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 983 | { |
27527aa0 BP |
984 | const struct proto_abbrev *p; |
985 | ||
986 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
987 | * warning if we forget any. */ | |
988 | switch (protocol) { | |
85813857 | 989 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
990 | return "NXM-table_id"; |
991 | ||
85813857 | 992 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
993 | return "NXM+table_id"; |
994 | ||
85813857 | 995 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
996 | return "OpenFlow10-table_id"; |
997 | ||
85813857 | 998 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 999 | return "OpenFlow10+table_id"; |
44d3732d | 1000 | |
75fa58f8 BP |
1001 | case OFPUTIL_P_OF11_STD: |
1002 | return "OpenFlow11"; | |
1003 | ||
85813857 | 1004 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 1005 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
1006 | |
1007 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 1008 | return "OXM-OpenFlow13"; |
c37c0382 AC |
1009 | |
1010 | case OFPUTIL_P_OF14_OXM: | |
1011 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
1012 | |
1013 | case OFPUTIL_P_OF15_OXM: | |
1014 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
1015 | } |
1016 | ||
1017 | /* Check abbreviations. */ | |
1018 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1019 | if (protocol == p->protocol) { | |
1020 | return p->name; | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | return NULL; | |
1025 | } | |
1026 | ||
1027 | /* Returns a string that represents 'protocols'. The return value might be a | |
1028 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
1029 | * value is "none" if 'protocols' is 0. | |
1030 | * | |
1031 | * The caller must free the returned string (with free()). */ | |
1032 | char * | |
1033 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
1034 | { | |
1035 | struct ds s; | |
1036 | ||
cb22974d | 1037 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
1038 | if (protocols == 0) { |
1039 | return xstrdup("none"); | |
1040 | } | |
1041 | ||
1042 | ds_init(&s); | |
1043 | while (protocols) { | |
1044 | const struct proto_abbrev *p; | |
1045 | int i; | |
1046 | ||
1047 | if (s.length) { | |
1048 | ds_put_char(&s, ','); | |
1049 | } | |
1050 | ||
1051 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1052 | if ((protocols & p->protocol) == p->protocol) { | |
1053 | ds_put_cstr(&s, p->name); | |
1054 | protocols &= ~p->protocol; | |
1055 | goto match; | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1060 | enum ofputil_protocol bit = 1u << i; | |
1061 | ||
1062 | if (protocols & bit) { | |
1063 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1064 | protocols &= ~bit; | |
1065 | goto match; | |
1066 | } | |
1067 | } | |
428b2edd | 1068 | OVS_NOT_REACHED(); |
27527aa0 BP |
1069 | |
1070 | match: ; | |
1071 | } | |
1072 | return ds_steal_cstr(&s); | |
1073 | } | |
1074 | ||
1075 | static enum ofputil_protocol | |
1076 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1077 | { | |
1078 | const struct proto_abbrev *p; | |
1079 | int i; | |
1080 | ||
1081 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1082 | enum ofputil_protocol bit = 1u << i; | |
1083 | const char *name = ofputil_protocol_to_string(bit); | |
1084 | ||
1085 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1086 | return bit; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1091 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1092 | return p->protocol; | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1100 | * single protocol name or abbreviation or a comma-separated list of them. | |
1101 | * | |
1102 | * Aborts the program with an error message if 's' is invalid. */ | |
1103 | enum ofputil_protocol | |
1104 | ofputil_protocols_from_string(const char *s) | |
1105 | { | |
1106 | const char *orig_s = s; | |
1107 | enum ofputil_protocol protocols; | |
1108 | ||
1109 | protocols = 0; | |
1110 | while (*s) { | |
1111 | enum ofputil_protocol p; | |
1112 | size_t n; | |
1113 | ||
1114 | n = strcspn(s, ","); | |
1115 | if (n == 0) { | |
1116 | s++; | |
1117 | continue; | |
1118 | } | |
1119 | ||
1120 | p = ofputil_protocol_from_string__(s, n); | |
1121 | if (!p) { | |
1122 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1123 | } | |
1124 | protocols |= p; | |
1125 | ||
1126 | s += n; | |
1127 | } | |
1128 | ||
1129 | if (!protocols) { | |
1130 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1131 | } | |
1132 | return protocols; | |
88ca35ee BP |
1133 | } |
1134 | ||
9d84066c | 1135 | enum ofp_version |
03e1125c SH |
1136 | ofputil_version_from_string(const char *s) |
1137 | { | |
1138 | if (!strcasecmp(s, "OpenFlow10")) { | |
1139 | return OFP10_VERSION; | |
1140 | } | |
1141 | if (!strcasecmp(s, "OpenFlow11")) { | |
1142 | return OFP11_VERSION; | |
1143 | } | |
1144 | if (!strcasecmp(s, "OpenFlow12")) { | |
1145 | return OFP12_VERSION; | |
1146 | } | |
2e1ae200 JR |
1147 | if (!strcasecmp(s, "OpenFlow13")) { |
1148 | return OFP13_VERSION; | |
1149 | } | |
c37c0382 AC |
1150 | if (!strcasecmp(s, "OpenFlow14")) { |
1151 | return OFP14_VERSION; | |
1152 | } | |
42dccab5 BP |
1153 | if (!strcasecmp(s, "OpenFlow15")) { |
1154 | return OFP15_VERSION; | |
1155 | } | |
7beaa082 | 1156 | return 0; |
03e1125c SH |
1157 | } |
1158 | ||
1159 | static bool | |
e091ef84 | 1160 | is_delimiter(unsigned char c) |
03e1125c SH |
1161 | { |
1162 | return isspace(c) || c == ','; | |
1163 | } | |
1164 | ||
1165 | uint32_t | |
1166 | ofputil_versions_from_string(const char *s) | |
1167 | { | |
1168 | size_t i = 0; | |
1169 | uint32_t bitmap = 0; | |
1170 | ||
1171 | while (s[i]) { | |
1172 | size_t j; | |
7beaa082 | 1173 | int version; |
03e1125c SH |
1174 | char *key; |
1175 | ||
1176 | if (is_delimiter(s[i])) { | |
1177 | i++; | |
1178 | continue; | |
1179 | } | |
1180 | j = 0; | |
1181 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1182 | j++; | |
1183 | } | |
1184 | key = xmemdup0(s + i, j); | |
1185 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1186 | if (!version) { |
1187 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1188 | } | |
03e1125c SH |
1189 | free(key); |
1190 | bitmap |= 1u << version; | |
1191 | i += j; | |
1192 | } | |
1193 | ||
1194 | return bitmap; | |
1195 | } | |
1196 | ||
7beaa082 SH |
1197 | uint32_t |
1198 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1199 | { | |
1200 | uint32_t bitmap = 0; | |
1201 | ||
1202 | while (count--) { | |
1203 | int version = ofputil_version_from_string(s[count]); | |
1204 | if (!version) { | |
1205 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1206 | } else { | |
1207 | bitmap |= 1u << version; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | return bitmap; | |
1212 | } | |
1213 | ||
03e1125c SH |
1214 | const char * |
1215 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1216 | { | |
1217 | switch (ofp_version) { | |
1218 | case OFP10_VERSION: | |
1219 | return "OpenFlow10"; | |
1220 | case OFP11_VERSION: | |
1221 | return "OpenFlow11"; | |
1222 | case OFP12_VERSION: | |
1223 | return "OpenFlow12"; | |
2e1ae200 JR |
1224 | case OFP13_VERSION: |
1225 | return "OpenFlow13"; | |
c37c0382 AC |
1226 | case OFP14_VERSION: |
1227 | return "OpenFlow14"; | |
42dccab5 BP |
1228 | case OFP15_VERSION: |
1229 | return "OpenFlow15"; | |
03e1125c | 1230 | default: |
428b2edd | 1231 | OVS_NOT_REACHED(); |
03e1125c SH |
1232 | } |
1233 | } | |
1234 | ||
54834960 EJ |
1235 | bool |
1236 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1237 | { | |
1238 | switch (packet_in_format) { | |
1239 | case NXPIF_OPENFLOW10: | |
1240 | case NXPIF_NXM: | |
1241 | return true; | |
1242 | } | |
1243 | ||
1244 | return false; | |
1245 | } | |
1246 | ||
1247 | const char * | |
1248 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1249 | { | |
1250 | switch (packet_in_format) { | |
1251 | case NXPIF_OPENFLOW10: | |
1252 | return "openflow10"; | |
1253 | case NXPIF_NXM: | |
1254 | return "nxm"; | |
1255 | default: | |
428b2edd | 1256 | OVS_NOT_REACHED(); |
54834960 EJ |
1257 | } |
1258 | } | |
1259 | ||
1260 | int | |
1261 | ofputil_packet_in_format_from_string(const char *s) | |
1262 | { | |
1263 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1264 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1265 | : -1); | |
1266 | } | |
1267 | ||
03e1125c SH |
1268 | void |
1269 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1270 | { | |
8989046d | 1271 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1272 | } |
1273 | ||
1274 | void | |
1275 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1276 | { | |
1277 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1278 | } | |
1279 | ||
1280 | static void | |
1281 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1282 | void (*format_version)(struct ds *msg, | |
1283 | enum ofp_version)) | |
1284 | { | |
1285 | while (bitmap) { | |
1286 | format_version(msg, raw_ctz(bitmap)); | |
1287 | bitmap = zero_rightmost_1bit(bitmap); | |
1288 | if (bitmap) { | |
1289 | ds_put_cstr(msg, ", "); | |
1290 | } | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | void | |
1295 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1296 | { | |
1297 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1298 | } | |
1299 | ||
1300 | void | |
1301 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1302 | { | |
1303 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1304 | } | |
1305 | ||
de6c85b0 SH |
1306 | static bool |
1307 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1308 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1309 | { |
1310 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1311 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1312 | uint32_t allowed_versions; |
de6c85b0 SH |
1313 | |
1314 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1315 | return false; | |
1316 | } | |
1317 | ||
1318 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1319 | * current implementation supports. Subsequent elements are ignored which | |
1320 | * should have no effect on session negotiation until Open vSwtich supports | |
1321 | * wire-protocol versions greater than 31. | |
1322 | */ | |
0935de41 | 1323 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1324 | |
0935de41 | 1325 | if (allowed_versions & 1) { |
de6c85b0 SH |
1326 | /* There's no OpenFlow version 0. */ |
1327 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1328 | "version 0x00"); | |
0935de41 | 1329 | allowed_versions &= ~1u; |
de6c85b0 SH |
1330 | } |
1331 | ||
0935de41 | 1332 | if (!allowed_versions) { |
de6c85b0 SH |
1333 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1334 | "version (between 0x01 and 0x1f)"); | |
1335 | return false; | |
1336 | } | |
1337 | ||
0935de41 | 1338 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1339 | return true; |
1340 | } | |
1341 | ||
1342 | static uint32_t | |
1343 | version_bitmap_from_version(uint8_t ofp_version) | |
1344 | { | |
1345 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1346 | } | |
1347 | ||
1348 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1349 | * the set of OpenFlow versions for which 'oh' announces support. | |
1350 | * | |
1351 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1352 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1353 | * returns false if 'oh' contains some data that could not be fully understood, | |
1354 | * true if 'oh' was completely parsed. */ | |
1355 | bool | |
1356 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1357 | { | |
1358 | struct ofpbuf msg; | |
1359 | bool ok = true; | |
1360 | ||
1361 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1362 | ofpbuf_pull(&msg, sizeof *oh); | |
1363 | ||
1364 | *allowed_versions = version_bitmap_from_version(oh->version); | |
6fd6ed71 | 1365 | while (msg.size) { |
de6c85b0 SH |
1366 | const struct ofp_hello_elem_header *oheh; |
1367 | unsigned int len; | |
1368 | ||
6fd6ed71 | 1369 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1370 | return false; |
1371 | } | |
1372 | ||
6fd6ed71 | 1373 | oheh = msg.data; |
de6c85b0 SH |
1374 | len = ntohs(oheh->length); |
1375 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1376 | return false; | |
1377 | } | |
1378 | ||
1379 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1380 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1381 | ok = false; | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | return ok; | |
1386 | } | |
1387 | ||
1388 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1389 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1390 | static bool |
de6c85b0 SH |
1391 | should_send_version_bitmap(uint32_t allowed_versions) |
1392 | { | |
1393 | return !is_pow2((allowed_versions >> 1) + 1); | |
1394 | } | |
1395 | ||
1396 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1397 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1398 | struct ofpbuf * | |
1399 | ofputil_encode_hello(uint32_t allowed_versions) | |
1400 | { | |
1401 | enum ofp_version ofp_version; | |
1402 | struct ofpbuf *msg; | |
1403 | ||
1404 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1405 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1406 | ||
1407 | if (should_send_version_bitmap(allowed_versions)) { | |
1408 | struct ofp_hello_elem_header *oheh; | |
1409 | uint16_t map_len; | |
1410 | ||
74c4b9c1 | 1411 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1412 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1413 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1414 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1415 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1416 | |
1417 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1418 | } |
1419 | ||
1420 | return msg; | |
1421 | } | |
1422 | ||
27527aa0 BP |
1423 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1424 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1425 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1426 | * connection if the switch processes the returned message correctly. (If | |
1427 | * '*next != want' then the caller will have to iterate.) | |
1428 | * | |
e43928f2 BP |
1429 | * If 'current == want', or if it is not possible to transition from 'current' |
1430 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1431 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1432 | struct ofpbuf * |
1433 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1434 | enum ofputil_protocol want, | |
1435 | enum ofputil_protocol *next) | |
1436 | { | |
e43928f2 | 1437 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1438 | enum ofputil_protocol cur_base, want_base; |
1439 | bool cur_tid, want_tid; | |
1440 | ||
e43928f2 BP |
1441 | cur_version = ofputil_protocol_to_ofp_version(current); |
1442 | want_version = ofputil_protocol_to_ofp_version(want); | |
1443 | if (cur_version != want_version) { | |
1444 | *next = current; | |
1445 | return NULL; | |
1446 | } | |
1447 | ||
27527aa0 BP |
1448 | cur_base = ofputil_protocol_to_base(current); |
1449 | want_base = ofputil_protocol_to_base(want); | |
1450 | if (cur_base != want_base) { | |
1451 | *next = ofputil_protocol_set_base(current, want_base); | |
1452 | ||
1453 | switch (want_base) { | |
85813857 | 1454 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1455 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1456 | ||
85813857 | 1457 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1458 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1459 | ||
75fa58f8 | 1460 | case OFPUTIL_P_OF11_STD: |
85813857 | 1461 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1462 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1463 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1464 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1465 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1466 | * verified above that we're not trying to change versions. */ |
428b2edd | 1467 | OVS_NOT_REACHED(); |
44d3732d | 1468 | |
85813857 BP |
1469 | case OFPUTIL_P_OF10_STD_TID: |
1470 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1471 | OVS_NOT_REACHED(); |
27527aa0 BP |
1472 | } |
1473 | } | |
1474 | ||
1475 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1476 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1477 | if (cur_tid != want_tid) { | |
1478 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1479 | return ofputil_make_flow_mod_table_id(want_tid); | |
1480 | } | |
1481 | ||
cb22974d | 1482 | ovs_assert(current == want); |
27527aa0 BP |
1483 | |
1484 | *next = current; | |
1485 | return NULL; | |
88ca35ee BP |
1486 | } |
1487 | ||
27527aa0 BP |
1488 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1489 | * format to 'nxff'. */ | |
88ca35ee | 1490 | struct ofpbuf * |
27527aa0 | 1491 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1492 | { |
73dbf4ab | 1493 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1494 | struct ofpbuf *msg; |
1495 | ||
cb22974d | 1496 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1497 | |
982697a4 BP |
1498 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1499 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1500 | sff->format = htonl(nxff); |
88ca35ee BP |
1501 | |
1502 | return msg; | |
1503 | } | |
1504 | ||
27527aa0 BP |
1505 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1506 | * otherwise. */ | |
1507 | enum ofputil_protocol | |
1508 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1509 | { | |
1510 | switch (flow_format) { | |
1511 | case NXFF_OPENFLOW10: | |
85813857 | 1512 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1513 | |
1514 | case NXFF_NXM: | |
85813857 | 1515 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1516 | |
1517 | default: | |
1518 | return 0; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1523 | bool | |
1524 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1525 | { | |
1526 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1527 | } | |
1528 | ||
1529 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1530 | * value. */ | |
1531 | const char * | |
1532 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1533 | { | |
1534 | switch (flow_format) { | |
1535 | case NXFF_OPENFLOW10: | |
1536 | return "openflow10"; | |
1537 | case NXFF_NXM: | |
1538 | return "nxm"; | |
1539 | default: | |
428b2edd | 1540 | OVS_NOT_REACHED(); |
27527aa0 BP |
1541 | } |
1542 | } | |
1543 | ||
54834960 | 1544 | struct ofpbuf * |
3f4a1939 SH |
1545 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1546 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1547 | { |
73dbf4ab | 1548 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1549 | struct ofpbuf *msg; |
1550 | ||
3f4a1939 | 1551 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1552 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1553 | spif->format = htonl(packet_in_format); |
1554 | ||
1555 | return msg; | |
1556 | } | |
1557 | ||
6c1491fb BP |
1558 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1559 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1560 | struct ofpbuf * | |
1561 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1562 | { | |
73dbf4ab | 1563 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1564 | struct ofpbuf *msg; |
1565 | ||
982697a4 BP |
1566 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1567 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1568 | nfmti->set = flow_mod_table_id; |
1569 | return msg; | |
1570 | } | |
1571 | ||
0fb88c18 BP |
1572 | struct ofputil_flow_mod_flag { |
1573 | uint16_t raw_flag; | |
1574 | enum ofp_version min_version, max_version; | |
1575 | enum ofputil_flow_mod_flags flag; | |
1576 | }; | |
1577 | ||
1578 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1579 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1580 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1581 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1582 | OFPUTIL_FF_EMERG }, | |
1583 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1584 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1585 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1586 | { 0, 0, 0, 0 }, | |
1587 | }; | |
1588 | ||
1589 | static enum ofperr | |
1590 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1591 | enum ofp_flow_mod_command command, | |
1592 | enum ofp_version version, | |
1593 | enum ofputil_flow_mod_flags *flagsp) | |
1594 | { | |
1595 | uint16_t raw_flags = ntohs(raw_flags_); | |
1596 | const struct ofputil_flow_mod_flag *f; | |
1597 | ||
1598 | *flagsp = 0; | |
1599 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1600 | if (raw_flags & f->raw_flag | |
1601 | && version >= f->min_version | |
1602 | && (!f->max_version || version <= f->max_version)) { | |
1603 | raw_flags &= ~f->raw_flag; | |
1604 | *flagsp |= f->flag; | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1609 | * never do. | |
1610 | * | |
1611 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1612 | * resets counters. */ | |
1613 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1614 | && command == OFPFC_ADD) { | |
1615 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1616 | } | |
1617 | ||
1618 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1619 | } | |
1620 | ||
1621 | static ovs_be16 | |
1622 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1623 | enum ofp_version version) | |
1624 | { | |
1625 | const struct ofputil_flow_mod_flag *f; | |
1626 | uint16_t raw_flags; | |
1627 | ||
1628 | raw_flags = 0; | |
1629 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1630 | if (f->flag & flags | |
1631 | && version >= f->min_version | |
1632 | && (!f->max_version || version <= f->max_version)) { | |
1633 | raw_flags |= f->raw_flag; | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | return htons(raw_flags); | |
1638 | } | |
1639 | ||
7fa91113 BP |
1640 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1641 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1642 | * code. | |
1643 | * | |
f25d0cf3 BP |
1644 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1645 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1646 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1647 | * | |
1648 | * Does not validate the flow_mod actions. The caller should do that, with | |
1649 | * ofpacts_check(). */ | |
90bf1e07 | 1650 | enum ofperr |
a9a2da38 | 1651 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1652 | const struct ofp_header *oh, |
f25d0cf3 | 1653 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1654 | struct ofpbuf *ofpacts, |
1655 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1656 | { |
0fb88c18 BP |
1657 | ovs_be16 raw_flags; |
1658 | enum ofperr error; | |
2e4f5fcf | 1659 | struct ofpbuf b; |
982697a4 | 1660 | enum ofpraw raw; |
2e4f5fcf | 1661 | |
cc40d06b SH |
1662 | /* Ignored for non-delete actions */ |
1663 | fm->delete_reason = OFPRR_DELETE; | |
1664 | ||
2013493b | 1665 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1666 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1667 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1668 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1669 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1670 | |
bbc32a88 | 1671 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1672 | |
81a76618 | 1673 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1674 | if (error) { |
1675 | return error; | |
1c0b7503 BP |
1676 | } |
1677 | ||
2e4f5fcf | 1678 | /* Translate the message. */ |
81a76618 | 1679 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1680 | if (ofm->command == OFPFC_ADD |
1681 | || (oh->version == OFP11_VERSION | |
1682 | && (ofm->command == OFPFC_MODIFY || | |
1683 | ofm->command == OFPFC_MODIFY_STRICT) | |
1684 | && ofm->cookie_mask == htonll(0))) { | |
1685 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1686 | * not match on the cookie is treated as an "add" if there is no | |
1687 | * match. */ | |
aa319503 BP |
1688 | fm->cookie = htonll(0); |
1689 | fm->cookie_mask = htonll(0); | |
1690 | fm->new_cookie = ofm->cookie; | |
1691 | } else { | |
aa319503 BP |
1692 | fm->cookie = ofm->cookie; |
1693 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1694 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1695 | } |
23342857 | 1696 | fm->modify_cookie = false; |
aa319503 | 1697 | fm->command = ofm->command; |
0e197060 BP |
1698 | |
1699 | /* Get table ID. | |
1700 | * | |
083761ad SH |
1701 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1702 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1703 | fm->table_id = ofm->table_id; |
083761ad | 1704 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1705 | && (oh->version == OFP11_VERSION |
1706 | || (ofm->command != OFPFC_DELETE && | |
1707 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1708 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1709 | } | |
1710 | ||
2e4f5fcf BP |
1711 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1712 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1713 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1714 | fm->importance = ntohs(ofm->importance); | |
1715 | } else { | |
1716 | fm->importance = 0; | |
1717 | } | |
2e4f5fcf | 1718 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1719 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1720 | if (error) { |
1721 | return error; | |
1722 | } | |
7395c052 | 1723 | |
1fe4c0a0 BP |
1724 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1725 | ofm->command == OFPFC_DELETE_STRICT | |
1726 | ? ntohl(ofm->out_group) | |
1727 | : OFPG11_ANY); | |
0fb88c18 | 1728 | raw_flags = ofm->flags; |
aa319503 | 1729 | } else { |
0fb88c18 BP |
1730 | uint16_t command; |
1731 | ||
aa319503 BP |
1732 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1733 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1734 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1735 | |
1736 | /* Get the ofp10_flow_mod. */ | |
1737 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1738 | ||
aa319503 | 1739 | /* Translate the rule. */ |
81a76618 BP |
1740 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1741 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1742 | |
81a76618 BP |
1743 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1744 | * highest possible priority. */ | |
1745 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1746 | ? ntohs(ofm->priority) | |
1747 | : UINT16_MAX); | |
1748 | ||
aa319503 BP |
1749 | /* Translate the message. */ |
1750 | command = ntohs(ofm->command); | |
1751 | fm->cookie = htonll(0); | |
1752 | fm->cookie_mask = htonll(0); | |
1753 | fm->new_cookie = ofm->cookie; | |
1754 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1755 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1756 | fm->importance = 0; |
aa319503 | 1757 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1758 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1759 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1760 | raw_flags = ofm->flags; |
aa319503 BP |
1761 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1762 | /* Nicira extended flow_mod. */ | |
1763 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1764 | |
1765 | /* Dissect the message. */ | |
1766 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1767 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1768 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1769 | if (error) { |
1770 | return error; | |
1771 | } | |
aa319503 BP |
1772 | |
1773 | /* Translate the message. */ | |
1774 | command = ntohs(nfm->command); | |
1775 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1776 | /* Flow additions may only set a new cookie, not match an | |
1777 | * existing cookie. */ | |
1778 | return OFPERR_NXBRC_NXM_INVALID; | |
1779 | } | |
81a76618 | 1780 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1781 | fm->new_cookie = nfm->cookie; |
1782 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1783 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1784 | fm->importance = 0; |
aa319503 | 1785 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1786 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1787 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1788 | raw_flags = nfm->flags; |
aa319503 | 1789 | } else { |
428b2edd | 1790 | OVS_NOT_REACHED(); |
aa319503 BP |
1791 | } |
1792 | ||
b8266395 | 1793 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1794 | if (protocol & OFPUTIL_P_TID) { |
1795 | fm->command = command & 0xff; | |
1796 | fm->table_id = command >> 8; | |
1797 | } else { | |
1f42be1c JR |
1798 | if (command > 0xff) { |
1799 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1800 | "but flow_mod_table_id extension is not enabled"); | |
1801 | } | |
aa319503 BP |
1802 | fm->command = command; |
1803 | fm->table_id = 0xff; | |
e729e793 | 1804 | } |
2e4f5fcf BP |
1805 | } |
1806 | ||
1f42be1c JR |
1807 | if (fm->command > OFPFC_DELETE_STRICT) { |
1808 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1809 | } | |
1810 | ||
6fd6ed71 | 1811 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1812 | oh->version, ofpacts); |
1813 | if (error) { | |
1814 | return error; | |
1815 | } | |
6fd6ed71 PS |
1816 | fm->ofpacts = ofpacts->data; |
1817 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1818 | |
0fb88c18 BP |
1819 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1820 | oh->version, &fm->flags); | |
1821 | if (error) { | |
1822 | return error; | |
1823 | } | |
1824 | ||
1825 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1826 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1827 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1828 | * | |
1829 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1830 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1831 | * code, so just state that the flow table is full. */ | |
1832 | return (fm->hard_timeout || fm->idle_timeout | |
1833 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1834 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1835 | } | |
1836 | ||
ba2fe8e9 BP |
1837 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1838 | &fm->match.flow, max_port, | |
1839 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1840 | } |
1841 | ||
638a19b0 JR |
1842 | static enum ofperr |
1843 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1844 | struct ofpbuf *bands) | |
1845 | { | |
1846 | const struct ofp13_meter_band_header *ombh; | |
1847 | struct ofputil_meter_band *mb; | |
1848 | uint16_t n = 0; | |
1849 | ||
1850 | ombh = ofpbuf_try_pull(msg, len); | |
1851 | if (!ombh) { | |
1852 | return OFPERR_OFPBRC_BAD_LEN; | |
1853 | } | |
1854 | ||
1855 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1856 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1857 | /* All supported band types have the same length. */ |
638a19b0 JR |
1858 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1859 | return OFPERR_OFPBRC_BAD_LEN; | |
1860 | } | |
1861 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1862 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1863 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1864 | return OFPERR_OFPMMFC_BAD_BAND; | |
1865 | } | |
638a19b0 JR |
1866 | mb->rate = ntohl(ombh->rate); |
1867 | mb->burst_size = ntohl(ombh->burst_size); | |
1868 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1869 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1870 | n++; | |
1871 | len -= ombh_len; | |
db5a1019 AW |
1872 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1873 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1874 | } |
1875 | if (len) { | |
1876 | return OFPERR_OFPBRC_BAD_LEN; | |
1877 | } | |
1878 | *n_bands = n; | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | enum ofperr | |
1883 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1884 | struct ofputil_meter_mod *mm, | |
1885 | struct ofpbuf *bands) | |
1886 | { | |
1887 | const struct ofp13_meter_mod *omm; | |
1888 | struct ofpbuf b; | |
1889 | ||
1890 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1891 | ofpraw_pull_assert(&b); | |
1892 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1893 | ||
1894 | /* Translate the message. */ | |
1895 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1896 | if (mm->command != OFPMC13_ADD && |
1897 | mm->command != OFPMC13_MODIFY && | |
1898 | mm->command != OFPMC13_DELETE) { | |
1899 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1900 | } | |
638a19b0 JR |
1901 | mm->meter.meter_id = ntohl(omm->meter_id); |
1902 | ||
1903 | if (mm->command == OFPMC13_DELETE) { | |
1904 | mm->meter.flags = 0; | |
1905 | mm->meter.n_bands = 0; | |
1906 | mm->meter.bands = NULL; | |
1907 | } else { | |
1908 | enum ofperr error; | |
1909 | ||
1910 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1911 | if (mm->meter.flags & OFPMF13_KBPS && |
1912 | mm->meter.flags & OFPMF13_PKTPS) { | |
1913 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1914 | } | |
6fd6ed71 | 1915 | mm->meter.bands = bands->data; |
638a19b0 | 1916 | |
6fd6ed71 | 1917 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1918 | if (error) { |
1919 | return error; | |
1920 | } | |
1921 | } | |
1922 | return 0; | |
1923 | } | |
1924 | ||
1925 | void | |
1926 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1927 | { | |
1928 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1929 | *meter_id = ntohl(omr->meter_id); | |
1930 | } | |
1931 | ||
1932 | struct ofpbuf * | |
1933 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1934 | enum ofputil_meter_request_type type, | |
1935 | uint32_t meter_id) | |
1936 | { | |
1937 | struct ofpbuf *msg; | |
1938 | ||
1939 | enum ofpraw raw; | |
1940 | ||
1941 | switch (type) { | |
1942 | case OFPUTIL_METER_CONFIG: | |
1943 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1944 | break; | |
1945 | case OFPUTIL_METER_STATS: | |
1946 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1947 | break; | |
1948 | default: | |
1949 | case OFPUTIL_METER_FEATURES: | |
1950 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1951 | break; | |
1952 | } | |
1953 | ||
1954 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1955 | ||
1956 | if (type != OFPUTIL_METER_FEATURES) { | |
1957 | struct ofp13_meter_multipart_request *omr; | |
1958 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1959 | omr->meter_id = htonl(meter_id); | |
1960 | } | |
1961 | return msg; | |
1962 | } | |
1963 | ||
1964 | static void | |
1965 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1966 | struct ofpbuf *msg) | |
1967 | { | |
1968 | uint16_t n = 0; | |
1969 | ||
1970 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1971 | /* Currently all band types have same size. */ |
638a19b0 JR |
1972 | struct ofp13_meter_band_dscp_remark *ombh; |
1973 | size_t ombh_len = sizeof *ombh; | |
1974 | ||
1975 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1976 | ||
1977 | ombh->type = htons(mb->type); | |
1978 | ombh->len = htons(ombh_len); | |
1979 | ombh->rate = htonl(mb->rate); | |
1980 | ombh->burst_size = htonl(mb->burst_size); | |
1981 | ombh->prec_level = mb->prec_level; | |
1982 | ||
1983 | mb++; | |
1984 | } | |
1985 | } | |
1986 | ||
1987 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1988 | void | |
ca6ba700 | 1989 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1990 | const struct ofputil_meter_config *mc) |
1991 | { | |
1992 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 1993 | size_t start_ofs = msg->size; |
638a19b0 JR |
1994 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); |
1995 | reply->flags = htons(mc->flags); | |
1996 | reply->meter_id = htonl(mc->meter_id); | |
1997 | ||
1998 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1999 | ||
6fd6ed71 | 2000 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
2001 | |
2002 | ofpmp_postappend(replies, start_ofs); | |
2003 | } | |
2004 | ||
2005 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
2006 | void | |
ca6ba700 | 2007 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
2008 | const struct ofputil_meter_stats *ms) |
2009 | { | |
2010 | struct ofp13_meter_stats *reply; | |
2011 | uint16_t n = 0; | |
2012 | uint16_t len; | |
2013 | ||
2014 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
2015 | reply = ofpmp_append(replies, len); | |
2016 | ||
2017 | reply->meter_id = htonl(ms->meter_id); | |
2018 | reply->len = htons(len); | |
2019 | memset(reply->pad, 0, sizeof reply->pad); | |
2020 | reply->flow_count = htonl(ms->flow_count); | |
2021 | reply->packet_in_count = htonll(ms->packet_in_count); | |
2022 | reply->byte_in_count = htonll(ms->byte_in_count); | |
2023 | reply->duration_sec = htonl(ms->duration_sec); | |
2024 | reply->duration_nsec = htonl(ms->duration_nsec); | |
2025 | ||
2026 | for (n = 0; n < ms->n_bands; ++n) { | |
2027 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
2028 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
2029 | ||
2030 | dst->packet_band_count = htonll(src->packet_count); | |
2031 | dst->byte_band_count = htonll(src->byte_count); | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
2036 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
2037 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
2038 | * it across the call. | |
2039 | * | |
2040 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
2041 | * message. Calling this function multiple times for a single 'msg' iterates | |
2042 | * through the replies. 'bands' is cleared for each reply. | |
2043 | * | |
2044 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2045 | * otherwise a positive errno value. */ | |
2046 | int | |
2047 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2048 | struct ofputil_meter_config *mc, | |
2049 | struct ofpbuf *bands) | |
2050 | { | |
2051 | const struct ofp13_meter_config *omc; | |
2052 | enum ofperr err; | |
2053 | ||
2054 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2055 | if (!msg->header) { |
638a19b0 JR |
2056 | ofpraw_pull_assert(msg); |
2057 | } | |
2058 | ||
6fd6ed71 | 2059 | if (!msg->size) { |
638a19b0 JR |
2060 | return EOF; |
2061 | } | |
2062 | ||
2063 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2064 | if (!omc) { | |
0445637d | 2065 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2066 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2067 | msg->size); |
638a19b0 JR |
2068 | return OFPERR_OFPBRC_BAD_LEN; |
2069 | } | |
2070 | ||
2071 | ofpbuf_clear(bands); | |
2072 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2073 | &mc->n_bands, bands); | |
2074 | if (err) { | |
2075 | return err; | |
2076 | } | |
2077 | mc->meter_id = ntohl(omc->meter_id); | |
2078 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2079 | mc->bands = bands->data; |
638a19b0 JR |
2080 | |
2081 | return 0; | |
2082 | } | |
2083 | ||
2084 | static enum ofperr | |
2085 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2086 | struct ofpbuf *bands) | |
2087 | { | |
2088 | const struct ofp13_meter_band_stats *ombs; | |
2089 | struct ofputil_meter_band_stats *mbs; | |
2090 | uint16_t n, i; | |
2091 | ||
0445637d JR |
2092 | ombs = ofpbuf_try_pull(msg, len); |
2093 | if (!ombs) { | |
2094 | return OFPERR_OFPBRC_BAD_LEN; | |
2095 | } | |
2096 | ||
638a19b0 JR |
2097 | n = len / sizeof *ombs; |
2098 | if (len != n * sizeof *ombs) { | |
2099 | return OFPERR_OFPBRC_BAD_LEN; | |
2100 | } | |
2101 | ||
638a19b0 JR |
2102 | mbs = ofpbuf_put_uninit(bands, len); |
2103 | ||
2104 | for (i = 0; i < n; ++i) { | |
2105 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2106 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2107 | } | |
2108 | *n_bands = n; | |
2109 | return 0; | |
2110 | } | |
2111 | ||
2112 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2113 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2114 | * decoded into 'bands'. | |
2115 | * | |
2116 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2117 | * message. Calling this function multiple times for a single 'msg' iterates | |
2118 | * through the replies. 'bands' is cleared for each reply. | |
2119 | * | |
2120 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2121 | * otherwise a positive errno value. */ | |
2122 | int | |
2123 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2124 | struct ofputil_meter_stats *ms, | |
2125 | struct ofpbuf *bands) | |
2126 | { | |
2127 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2128 | enum ofperr err; |
2129 | ||
2130 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2131 | if (!msg->header) { |
638a19b0 JR |
2132 | ofpraw_pull_assert(msg); |
2133 | } | |
2134 | ||
6fd6ed71 | 2135 | if (!msg->size) { |
638a19b0 JR |
2136 | return EOF; |
2137 | } | |
2138 | ||
2139 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2140 | if (!oms) { | |
0445637d | 2141 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2142 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2143 | msg->size); |
638a19b0 JR |
2144 | return OFPERR_OFPBRC_BAD_LEN; |
2145 | } | |
638a19b0 JR |
2146 | |
2147 | ofpbuf_clear(bands); | |
0445637d JR |
2148 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2149 | &ms->n_bands, bands); | |
638a19b0 JR |
2150 | if (err) { |
2151 | return err; | |
2152 | } | |
2153 | ms->meter_id = ntohl(oms->meter_id); | |
2154 | ms->flow_count = ntohl(oms->flow_count); | |
2155 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2156 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2157 | ms->duration_sec = ntohl(oms->duration_sec); | |
2158 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2159 | ms->bands = bands->data; |
638a19b0 JR |
2160 | |
2161 | return 0; | |
2162 | } | |
2163 | ||
2164 | void | |
2165 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2166 | struct ofputil_meter_features *mf) | |
2167 | { | |
2168 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2169 | ||
2170 | mf->max_meters = ntohl(omf->max_meter); | |
2171 | mf->band_types = ntohl(omf->band_types); | |
2172 | mf->capabilities = ntohl(omf->capabilities); | |
2173 | mf->max_bands = omf->max_bands; | |
2174 | mf->max_color = omf->max_color; | |
2175 | } | |
2176 | ||
2177 | struct ofpbuf * | |
2178 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2179 | const struct ofp_header *request) | |
2180 | { | |
2181 | struct ofpbuf *reply; | |
2182 | struct ofp13_meter_features *omf; | |
2183 | ||
2184 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2185 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2186 | ||
2187 | omf->max_meter = htonl(mf->max_meters); | |
2188 | omf->band_types = htonl(mf->band_types); | |
2189 | omf->capabilities = htonl(mf->capabilities); | |
2190 | omf->max_bands = mf->max_bands; | |
2191 | omf->max_color = mf->max_color; | |
2192 | ||
2193 | return reply; | |
2194 | } | |
2195 | ||
2196 | struct ofpbuf * | |
2197 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2198 | const struct ofputil_meter_mod *mm) | |
2199 | { | |
2200 | struct ofpbuf *msg; | |
2201 | ||
2202 | struct ofp13_meter_mod *omm; | |
2203 | ||
2204 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2205 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2206 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2207 | omm->command = htons(mm->command); | |
2208 | if (mm->command != OFPMC13_DELETE) { | |
2209 | omm->flags = htons(mm->meter.flags); | |
2210 | } | |
2211 | omm->meter_id = htonl(mm->meter.meter_id); | |
2212 | ||
2213 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2214 | ||
2215 | ofpmsg_update_length(msg); | |
2216 | return msg; | |
2217 | } | |
2218 | ||
aa6305ea SH |
2219 | static ovs_be16 |
2220 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2221 | enum ofputil_protocol protocol) | |
2222 | { | |
2223 | return htons(protocol & OFPUTIL_P_TID | |
2224 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2225 | : fm->command); | |
2226 | } | |
2227 | ||
2e4f5fcf | 2228 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2229 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2230 | struct ofpbuf * |
a9a2da38 | 2231 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2232 | enum ofputil_protocol protocol) |
2e4f5fcf | 2233 | { |
0fb88c18 BP |
2234 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2235 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2236 | struct ofpbuf *msg; |
2237 | ||
27527aa0 | 2238 | switch (protocol) { |
75fa58f8 | 2239 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2240 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2241 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2242 | case OFPUTIL_P_OF14_OXM: |
2243 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2244 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2245 | int tailroom; |
aa6305ea | 2246 | |
75fa58f8 | 2247 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2248 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2249 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2250 | if ((protocol == OFPUTIL_P_OF11_STD |
2251 | && (fm->command == OFPFC_MODIFY || | |
2252 | fm->command == OFPFC_MODIFY_STRICT) | |
2253 | && fm->cookie_mask == htonll(0)) | |
2254 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2255 | ofm->cookie = fm->new_cookie; |
2256 | } else { | |
ba5cc068 | 2257 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2258 | } |
aa6305ea | 2259 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2260 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2261 | || (protocol != OFPUTIL_P_OF11_STD |
2262 | && (fm->command == OFPFC_DELETE || | |
2263 | fm->command == OFPFC_DELETE_STRICT))) { | |
2264 | ofm->table_id = fm->table_id; | |
2265 | } else { | |
2266 | ofm->table_id = 0; | |
2267 | } | |
aa6305ea SH |
2268 | ofm->command = fm->command; |
2269 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2270 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2271 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2272 | ofm->buffer_id = htonl(fm->buffer_id); |
2273 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2274 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2275 | ofm->flags = raw_flags; |
ca26eb44 RB |
2276 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2277 | ofm->importance = htons(fm->importance); | |
2278 | } else { | |
2279 | ofm->importance = 0; | |
2280 | } | |
75fa58f8 | 2281 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2282 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2283 | version); | |
aa6305ea SH |
2284 | break; |
2285 | } | |
2286 | ||
85813857 BP |
2287 | case OFPUTIL_P_OF10_STD: |
2288 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2289 | struct ofp10_flow_mod *ofm; |
2290 | ||
982697a4 BP |
2291 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2292 | fm->ofpacts_len); | |
2293 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2294 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2295 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2296 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2297 | ofm->idle_timeout = htons(fm->idle_timeout); |
2298 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2299 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2300 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2301 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2302 | ofm->flags = raw_flags; |
e3f8f887 JR |
2303 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2304 | version); | |
27527aa0 | 2305 | break; |
3f192f23 | 2306 | } |
2e4f5fcf | 2307 | |
85813857 BP |
2308 | case OFPUTIL_P_OF10_NXM: |
2309 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2310 | struct nx_flow_mod *nfm; |
2311 | int match_len; | |
2312 | ||
982697a4 BP |
2313 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2314 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2315 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2316 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2317 | nfm->cookie = fm->new_cookie; |
81a76618 | 2318 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2319 | nfm = msg->msg; |
2e4f5fcf BP |
2320 | nfm->idle_timeout = htons(fm->idle_timeout); |
2321 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2322 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2323 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2324 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2325 | nfm->flags = raw_flags; |
2e4f5fcf | 2326 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2327 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2328 | version); | |
27527aa0 | 2329 | break; |
3f192f23 | 2330 | } |
27527aa0 BP |
2331 | |
2332 | default: | |
428b2edd | 2333 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2334 | } |
2335 | ||
982697a4 | 2336 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2337 | return msg; |
2338 | } | |
2339 | ||
90bf1e07 | 2340 | static enum ofperr |
0157ad3a SH |
2341 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2342 | const struct ofp10_flow_stats_request *ofsr, | |
2343 | bool aggregate) | |
2e4f5fcf | 2344 | { |
2e4f5fcf | 2345 | fsr->aggregate = aggregate; |
81a76618 | 2346 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2347 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2348 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2349 | fsr->table_id = ofsr->table_id; |
e729e793 | 2350 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2351 | |
2352 | return 0; | |
2353 | } | |
2354 | ||
0157ad3a SH |
2355 | static enum ofperr |
2356 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2357 | struct ofpbuf *b, bool aggregate) | |
2358 | { | |
2359 | const struct ofp11_flow_stats_request *ofsr; | |
2360 | enum ofperr error; | |
2361 | ||
2362 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2363 | fsr->aggregate = aggregate; | |
2364 | fsr->table_id = ofsr->table_id; | |
2365 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2366 | if (error) { | |
2367 | return error; | |
2368 | } | |
7395c052 | 2369 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2370 | fsr->cookie = ofsr->cookie; |
2371 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2372 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2373 | if (error) { |
2374 | return error; | |
2375 | } | |
2376 | ||
2377 | return 0; | |
2378 | } | |
2379 | ||
90bf1e07 | 2380 | static enum ofperr |
81d1ea94 | 2381 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2382 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2383 | { |
2384 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2385 | enum ofperr error; |
2e4f5fcf | 2386 | |
982697a4 | 2387 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2388 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2389 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2390 | if (error) { |
2391 | return error; | |
2392 | } | |
6fd6ed71 | 2393 | if (b->size) { |
90bf1e07 | 2394 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2395 | } |
2396 | ||
2397 | fsr->aggregate = aggregate; | |
4e022ec0 | 2398 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2399 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2400 | fsr->table_id = nfsr->table_id; |
2401 | ||
2402 | return 0; | |
2403 | } | |
2404 | ||
e8f9a7bb VG |
2405 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2406 | * 'port', suitable for OpenFlow version 'version'. */ | |
2407 | struct ofpbuf * | |
2408 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2409 | ofp_port_t port) | |
2410 | { | |
2411 | struct ofpbuf *request; | |
2412 | ||
2413 | if (version == OFP10_VERSION) { | |
2414 | struct ofp10_queue_get_config_request *qgcr10; | |
2415 | ||
2416 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2417 | version, 0); | |
2418 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2419 | qgcr10->port = htons(ofp_to_u16(port)); | |
2420 | } else { | |
2421 | struct ofp11_queue_get_config_request *qgcr11; | |
2422 | ||
2423 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2424 | version, 0); | |
2425 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2426 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2427 | } | |
2428 | ||
2429 | return request; | |
2430 | } | |
2431 | ||
2432 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2433 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2434 | * code. */ | |
2435 | enum ofperr | |
2436 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2437 | ofp_port_t *port) | |
2438 | { | |
2439 | const struct ofp10_queue_get_config_request *qgcr10; | |
2440 | const struct ofp11_queue_get_config_request *qgcr11; | |
2441 | enum ofpraw raw; | |
2442 | struct ofpbuf b; | |
2443 | ||
2444 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2445 | raw = ofpraw_pull_assert(&b); | |
2446 | ||
2447 | switch ((int) raw) { | |
2448 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2449 | qgcr10 = b.data; |
e8f9a7bb VG |
2450 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
2451 | return 0; | |
2452 | ||
2453 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2454 | qgcr11 = b.data; |
e8f9a7bb VG |
2455 | return ofputil_port_from_ofp11(qgcr11->port, port); |
2456 | } | |
2457 | ||
428b2edd | 2458 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2459 | } |
2460 | ||
2461 | /* Constructs and returns the beginning of a reply to | |
2462 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2463 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2464 | struct ofpbuf * | |
2465 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2466 | { | |
2467 | struct ofp10_queue_get_config_reply *qgcr10; | |
2468 | struct ofp11_queue_get_config_reply *qgcr11; | |
2469 | struct ofpbuf *reply; | |
2470 | enum ofperr error; | |
2471 | struct ofpbuf b; | |
2472 | enum ofpraw raw; | |
2473 | ofp_port_t port; | |
2474 | ||
2475 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2476 | ovs_assert(!error); | |
2477 | ||
2478 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2479 | raw = ofpraw_pull_assert(&b); | |
2480 | ||
2481 | switch ((int) raw) { | |
2482 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2483 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2484 | oh, 0); | |
2485 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2486 | qgcr10->port = htons(ofp_to_u16(port)); | |
2487 | break; | |
2488 | ||
2489 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2490 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2491 | oh, 0); | |
2492 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2493 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2494 | break; | |
2495 | ||
2496 | default: | |
428b2edd | 2497 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2498 | } |
2499 | ||
2500 | return reply; | |
2501 | } | |
2502 | ||
2503 | static void | |
2504 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2505 | uint16_t rate) | |
2506 | { | |
2507 | if (rate != UINT16_MAX) { | |
2508 | struct ofp_queue_prop_rate *oqpr; | |
2509 | ||
2510 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2511 | oqpr->prop_header.property = htons(property); | |
2512 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2513 | oqpr->rate = htons(rate); | |
2514 | } | |
2515 | } | |
2516 | ||
2517 | /* Appends a queue description for 'queue_id' to the | |
2518 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2519 | void | |
2520 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2521 | const struct ofputil_queue_config *oqc) | |
2522 | { | |
6fd6ed71 | 2523 | const struct ofp_header *oh = reply->data; |
e8f9a7bb VG |
2524 | size_t start_ofs, len_ofs; |
2525 | ovs_be16 *len; | |
2526 | ||
6fd6ed71 | 2527 | start_ofs = reply->size; |
e8f9a7bb VG |
2528 | if (oh->version < OFP12_VERSION) { |
2529 | struct ofp10_packet_queue *opq10; | |
2530 | ||
2531 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2532 | opq10->queue_id = htonl(oqc->queue_id); | |
6fd6ed71 | 2533 | len_ofs = (char *) &opq10->len - (char *) reply->data; |
e8f9a7bb VG |
2534 | } else { |
2535 | struct ofp11_queue_get_config_reply *qgcr11; | |
2536 | struct ofp12_packet_queue *opq12; | |
2537 | ovs_be32 port; | |
2538 | ||
6fd6ed71 | 2539 | qgcr11 = reply->msg; |
e8f9a7bb VG |
2540 | port = qgcr11->port; |
2541 | ||
2542 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2543 | opq12->port = port; | |
2544 | opq12->queue_id = htonl(oqc->queue_id); | |
6fd6ed71 | 2545 | len_ofs = (char *) &opq12->len - (char *) reply->data; |
e8f9a7bb VG |
2546 | } |
2547 | ||
2548 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2549 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2550 | ||
2551 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2552 | *len = htons(reply->size - start_ofs); |
e8f9a7bb VG |
2553 | } |
2554 | ||
2555 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2556 | * stores in '*port' the port that the reply is about. The caller may call | |
2557 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2558 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2559 | * ofperr.*/ | |
2560 | enum ofperr | |
2561 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2562 | { | |
2563 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2564 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2565 | enum ofpraw raw; | |
2566 | ||
2567 | raw = ofpraw_pull_assert(reply); | |
2568 | switch ((int) raw) { | |
2569 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2570 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2571 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2572 | return 0; | |
2573 | ||
2574 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2575 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2576 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2577 | } | |
2578 | ||
428b2edd | 2579 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2580 | } |
2581 | ||
2582 | static enum ofperr | |
2583 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2584 | { | |
2585 | const struct ofp_queue_prop_rate *oqpr; | |
2586 | ||
2587 | if (hdr->len == htons(sizeof *oqpr)) { | |
2588 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2589 | *rate = ntohs(oqpr->rate); | |
2590 | return 0; | |
2591 | } else { | |
2592 | return OFPERR_OFPBRC_BAD_LEN; | |
2593 | } | |
2594 | } | |
2595 | ||
2596 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2597 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2598 | * must already have pulled off the main header. | |
2599 | * | |
2600 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2601 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2602 | * problem decoding 'reply'. */ | |
2603 | int | |
2604 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2605 | struct ofputil_queue_config *queue) | |
2606 | { | |
2607 | const struct ofp_header *oh; | |
2608 | unsigned int opq_len; | |
2609 | unsigned int len; | |
2610 | ||
6fd6ed71 | 2611 | if (!reply->size) { |
e8f9a7bb VG |
2612 | return EOF; |
2613 | } | |
2614 | ||
2615 | queue->min_rate = UINT16_MAX; | |
2616 | queue->max_rate = UINT16_MAX; | |
2617 | ||
6fd6ed71 | 2618 | oh = reply->header; |
e8f9a7bb VG |
2619 | if (oh->version < OFP12_VERSION) { |
2620 | const struct ofp10_packet_queue *opq10; | |
2621 | ||
2622 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2623 | if (!opq10) { | |
2624 | return OFPERR_OFPBRC_BAD_LEN; | |
2625 | } | |
2626 | queue->queue_id = ntohl(opq10->queue_id); | |
2627 | len = ntohs(opq10->len); | |
2628 | opq_len = sizeof *opq10; | |
2629 | } else { | |
2630 | const struct ofp12_packet_queue *opq12; | |
2631 | ||
2632 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2633 | if (!opq12) { | |
2634 | return OFPERR_OFPBRC_BAD_LEN; | |
2635 | } | |
2636 | queue->queue_id = ntohl(opq12->queue_id); | |
2637 | len = ntohs(opq12->len); | |
2638 | opq_len = sizeof *opq12; | |
2639 | } | |
2640 | ||
6fd6ed71 | 2641 | if (len < opq_len || len > reply->size + opq_len || len % 8) { |
e8f9a7bb VG |
2642 | return OFPERR_OFPBRC_BAD_LEN; |
2643 | } | |
2644 | len -= opq_len; | |
2645 | ||
2646 | while (len > 0) { | |
2647 | const struct ofp_queue_prop_header *hdr; | |
2648 | unsigned int property; | |
2649 | unsigned int prop_len; | |
2650 | enum ofperr error = 0; | |
2651 | ||
2652 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2653 | prop_len = ntohs(hdr->len); | |
6fd6ed71 | 2654 | if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) { |
e8f9a7bb VG |
2655 | return OFPERR_OFPBRC_BAD_LEN; |
2656 | } | |
2657 | ||
2658 | property = ntohs(hdr->property); | |
2659 | switch (property) { | |
2660 | case OFPQT_MIN_RATE: | |
2661 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2662 | break; | |
2663 | ||
2664 | case OFPQT_MAX_RATE: | |
2665 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2666 | break; | |
2667 | ||
2668 | default: | |
2669 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2670 | break; | |
2671 | } | |
2672 | if (error) { | |
2673 | return error; | |
2674 | } | |
2675 | ||
2676 | ofpbuf_pull(reply, prop_len); | |
2677 | len -= prop_len; | |
2678 | } | |
2679 | return 0; | |
2680 | } | |
2681 | ||
2e4f5fcf | 2682 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2683 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2684 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2685 | enum ofperr |
81d1ea94 | 2686 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2687 | const struct ofp_header *oh) |
2e4f5fcf | 2688 | { |
982697a4 | 2689 | enum ofpraw raw; |
2e4f5fcf | 2690 | struct ofpbuf b; |
2e4f5fcf | 2691 | |
2013493b | 2692 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2693 | raw = ofpraw_pull_assert(&b); |
2694 | switch ((int) raw) { | |
cfc23141 | 2695 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2696 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2697 | |
617da9cd | 2698 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2699 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2700 | |
2701 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2702 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2703 | |
617da9cd SH |
2704 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2705 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2706 | ||
982697a4 BP |
2707 | case OFPRAW_NXST_FLOW_REQUEST: |
2708 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2709 | |
982697a4 BP |
2710 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2711 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2712 | |
2713 | default: | |
2714 | /* Hey, the caller lied. */ | |
428b2edd | 2715 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2716 | } |
2717 | } | |
2718 | ||
2719 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2720 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2721 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2722 | struct ofpbuf * |
81d1ea94 | 2723 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2724 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2725 | { |
2726 | struct ofpbuf *msg; | |
982697a4 | 2727 | enum ofpraw raw; |
2e4f5fcf | 2728 | |
27527aa0 | 2729 | switch (protocol) { |
75fa58f8 | 2730 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2731 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2732 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2733 | case OFPUTIL_P_OF14_OXM: |
2734 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2735 | struct ofp11_flow_stats_request *ofsr; |
2736 | ||
2737 | raw = (fsr->aggregate | |
617da9cd | 2738 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2739 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2740 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2741 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2742 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2743 | ofsr->table_id = fsr->table_id; | |
2744 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2745 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2746 | ofsr->cookie = fsr->cookie; |
2747 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2748 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2749 | break; |
2750 | } | |
2751 | ||
85813857 BP |
2752 | case OFPUTIL_P_OF10_STD: |
2753 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2754 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2755 | |
982697a4 | 2756 | raw = (fsr->aggregate |
617da9cd | 2757 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2758 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2759 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2760 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2761 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2762 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2763 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2764 | break; |
2765 | } | |
2766 | ||
85813857 BP |
2767 | case OFPUTIL_P_OF10_NXM: |
2768 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2769 | struct nx_flow_stats_request *nfsr; |
2770 | int match_len; | |
2771 | ||
982697a4 BP |
2772 | raw = (fsr->aggregate |
2773 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2774 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2775 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2776 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2777 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2778 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2779 | |
6fd6ed71 | 2780 | nfsr = msg->msg; |
4e022ec0 | 2781 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2782 | nfsr->match_len = htons(match_len); |
2783 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2784 | break; |
2785 | } | |
2786 | ||
2787 | default: | |
428b2edd | 2788 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2789 | } |
2790 | ||
2791 | return msg; | |
2792 | } | |
d1e2cf21 | 2793 | |
4ffd1b43 | 2794 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2795 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2796 | * |
2797 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2798 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2799 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2800 | * pointers null and not modify them between calls. | |
2801 | * | |
f27f2134 BP |
2802 | * Most switches don't send the values needed to populate fs->idle_age and |
2803 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2804 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2805 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2806 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2807 | * | |
f25d0cf3 BP |
2808 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2809 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2810 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2811 | * | |
4ffd1b43 BP |
2812 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2813 | * otherwise a positive errno value. */ | |
2814 | int | |
2815 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2816 | struct ofpbuf *msg, |
f25d0cf3 BP |
2817 | bool flow_age_extension, |
2818 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2819 | { |
0fb88c18 | 2820 | const struct ofp_header *oh; |
8f2cded4 | 2821 | size_t instructions_len; |
982697a4 BP |
2822 | enum ofperr error; |
2823 | enum ofpraw raw; | |
4ffd1b43 | 2824 | |
6fd6ed71 | 2825 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2826 | : ofpraw_pull(&raw, msg)); |
2827 | if (error) { | |
2828 | return error; | |
4ffd1b43 | 2829 | } |
6fd6ed71 | 2830 | oh = msg->header; |
4ffd1b43 | 2831 | |
6fd6ed71 | 2832 | if (!msg->size) { |
4ffd1b43 | 2833 | return EOF; |
2e1ae200 JR |
2834 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2835 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2836 | const struct ofp11_flow_stats *ofs; |
2837 | size_t length; | |
2838 | uint16_t padded_match_len; | |
2839 | ||
2840 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2841 | if (!ofs) { | |
437d0d22 | 2842 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2843 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2844 | return EINVAL; |
2845 | } | |
2846 | ||
2847 | length = ntohs(ofs->length); | |
2848 | if (length < sizeof *ofs) { | |
2849 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2850 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2851 | return EINVAL; |
2852 | } | |
2853 | ||
81a76618 | 2854 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2855 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2856 | return EINVAL; | |
2857 | } | |
8f2cded4 | 2858 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2859 | |
81a76618 | 2860 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2861 | fs->table_id = ofs->table_id; |
2862 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2863 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2864 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2865 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2866 | if (oh->version >= OFP14_VERSION) { |
2867 | fs->importance = ntohs(ofs->importance); | |
2868 | } else { | |
2869 | fs->importance = 0; | |
2870 | } | |
0fb88c18 BP |
2871 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2872 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2873 | &fs->flags); | |
2874 | if (error) { | |
2875 | return error; | |
2876 | } | |
2877 | } else { | |
2878 | fs->flags = 0; | |
2879 | } | |
6ec5f0c5 SH |
2880 | fs->idle_age = -1; |
2881 | fs->hard_age = -1; | |
2882 | fs->cookie = ofs->cookie; | |
2883 | fs->packet_count = ntohll(ofs->packet_count); | |
2884 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2885 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2886 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2887 | size_t length; |
2888 | ||
2889 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2890 | if (!ofs) { | |
437d0d22 | 2891 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2892 | "bytes at end", msg->size); |
4ffd1b43 BP |
2893 | return EINVAL; |
2894 | } | |
2895 | ||
2896 | length = ntohs(ofs->length); | |
2897 | if (length < sizeof *ofs) { | |
2898 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2899 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2900 | return EINVAL; |
2901 | } | |
8f2cded4 | 2902 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2903 | |
2904 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2905 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2906 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2907 | fs->table_id = ofs->table_id; |
2908 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2909 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2910 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2911 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2912 | fs->importance = 0; |
f27f2134 BP |
2913 | fs->idle_age = -1; |
2914 | fs->hard_age = -1; | |
4ffd1b43 BP |
2915 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2916 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2917 | fs->flags = 0; |
982697a4 | 2918 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2919 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2920 | size_t match_len, length; |
4ffd1b43 BP |
2921 | |
2922 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2923 | if (!nfs) { | |
437d0d22 | 2924 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2925 | "bytes at end", msg->size); |
4ffd1b43 BP |
2926 | return EINVAL; |
2927 | } | |
2928 | ||
2929 | length = ntohs(nfs->length); | |
2930 | match_len = ntohs(nfs->match_len); | |
2931 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2932 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2933 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2934 | return EINVAL; |
2935 | } | |
81a76618 | 2936 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2937 | return EINVAL; |
2938 | } | |
8f2cded4 | 2939 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2940 | |
2941 | fs->cookie = nfs->cookie; | |
2942 | fs->table_id = nfs->table_id; | |
2943 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2944 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2945 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2946 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2947 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2948 | fs->importance = 0; |
f27f2134 BP |
2949 | fs->idle_age = -1; |
2950 | fs->hard_age = -1; | |
2951 | if (flow_age_extension) { | |
2952 | if (nfs->idle_age) { | |
2953 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2954 | } | |
2955 | if (nfs->hard_age) { | |
2956 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2957 | } | |
2958 | } | |
4ffd1b43 BP |
2959 | fs->packet_count = ntohll(nfs->packet_count); |
2960 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2961 | fs->flags = 0; |
4ffd1b43 | 2962 | } else { |
428b2edd | 2963 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2964 | } |
2965 | ||
8f2cded4 BP |
2966 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2967 | ofpacts)) { | |
2968 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2969 | return EINVAL; | |
2970 | } | |
6fd6ed71 PS |
2971 | fs->ofpacts = ofpacts->data; |
2972 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 2973 | |
4ffd1b43 BP |
2974 | return 0; |
2975 | } | |
2976 | ||
5e9d0469 BP |
2977 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2978 | * | |
2979 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2980 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2981 | static uint64_t | |
2982 | unknown_to_zero(uint64_t count) | |
2983 | { | |
2984 | return count != UINT64_MAX ? count : 0; | |
2985 | } | |
2986 | ||
349adfb2 BP |
2987 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2988 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2989 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2990 | void |
2991 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 2992 | struct ovs_list *replies) |
349adfb2 | 2993 | { |
f25d0cf3 | 2994 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 2995 | size_t start_ofs = reply->size; |
e28ac5cf BP |
2996 | enum ofp_version version = ofpmp_version(replies); |
2997 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 2998 | |
2e1ae200 | 2999 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3000 | struct ofp11_flow_stats *ofs; |
3001 | ||
3002 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3003 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3004 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3005 | version); | |
22a86f18 SH |
3006 | |
3007 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3008 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3009 | ofs->table_id = fs->table_id; |
3010 | ofs->pad = 0; | |
3011 | ofs->duration_sec = htonl(fs->duration_sec); | |
3012 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3013 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3014 | ofs->idle_timeout = htons(fs->idle_timeout); |
3015 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3016 | if (version >= OFP14_VERSION) { |
3017 | ofs->importance = htons(fs->importance); | |
3018 | } else { | |
3019 | ofs->importance = 0; | |
3020 | } | |
0fb88c18 | 3021 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3022 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3023 | } else { |
3024 | ofs->flags = 0; | |
3025 | } | |
22a86f18 SH |
3026 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3027 | ofs->cookie = fs->cookie; | |
3028 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3029 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3030 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3031 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3032 | |
1a59dc2c | 3033 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3034 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3035 | version); | |
1a59dc2c | 3036 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3037 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3038 | ofs->table_id = fs->table_id; |
3039 | ofs->pad = 0; | |
81a76618 | 3040 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3041 | ofs->duration_sec = htonl(fs->duration_sec); |
3042 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3043 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3044 | ofs->idle_timeout = htons(fs->idle_timeout); |
3045 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3046 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3047 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3048 | put_32aligned_be64(&ofs->packet_count, |
3049 | htonll(unknown_to_zero(fs->packet_count))); | |
3050 | put_32aligned_be64(&ofs->byte_count, | |
3051 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3052 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3053 | struct nx_flow_stats *nfs; |
1a59dc2c | 3054 | int match_len; |
349adfb2 | 3055 | |
1a59dc2c | 3056 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3057 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3058 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3059 | version); | |
1a59dc2c | 3060 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3061 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3062 | nfs->table_id = fs->table_id; |
3063 | nfs->pad = 0; | |
3064 | nfs->duration_sec = htonl(fs->duration_sec); | |
3065 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3066 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3067 | nfs->idle_timeout = htons(fs->idle_timeout); |
3068 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3069 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3070 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3071 | : UINT16_MAX); | |
3072 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3073 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3074 | : UINT16_MAX); | |
1a59dc2c | 3075 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3076 | nfs->cookie = fs->cookie; |
3077 | nfs->packet_count = htonll(fs->packet_count); | |
3078 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3079 | } else { |
428b2edd | 3080 | OVS_NOT_REACHED(); |
349adfb2 | 3081 | } |
f25d0cf3 | 3082 | |
982697a4 | 3083 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3084 | } |
3085 | ||
76c93b22 | 3086 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3087 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3088 | struct ofpbuf * |
3089 | ofputil_encode_aggregate_stats_reply( | |
3090 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3091 | const struct ofp_header *request) |
76c93b22 | 3092 | { |
a814ba0f BP |
3093 | struct ofp_aggregate_stats_reply *asr; |
3094 | uint64_t packet_count; | |
3095 | uint64_t byte_count; | |
76c93b22 | 3096 | struct ofpbuf *msg; |
982697a4 | 3097 | enum ofpraw raw; |
76c93b22 | 3098 | |
982697a4 | 3099 | ofpraw_decode(&raw, request); |
617da9cd | 3100 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3101 | packet_count = unknown_to_zero(stats->packet_count); |
3102 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3103 | } else { |
a814ba0f BP |
3104 | packet_count = stats->packet_count; |
3105 | byte_count = stats->byte_count; | |
76c93b22 BP |
3106 | } |
3107 | ||
a814ba0f BP |
3108 | msg = ofpraw_alloc_stats_reply(request, 0); |
3109 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3110 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3111 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3112 | asr->flow_count = htonl(stats->flow_count); | |
3113 | ||
76c93b22 BP |
3114 | return msg; |
3115 | } | |
3116 | ||
982697a4 BP |
3117 | enum ofperr |
3118 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3119 | const struct ofp_header *reply) | |
3120 | { | |
a814ba0f | 3121 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3122 | struct ofpbuf msg; |
982697a4 BP |
3123 | |
3124 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3125 | ofpraw_pull_assert(&msg); |
3126 | ||
6fd6ed71 | 3127 | asr = msg.msg; |
a814ba0f BP |
3128 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3129 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3130 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3131 | |
3132 | return 0; | |
3133 | } | |
3134 | ||
b78f6b77 BP |
3135 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3136 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3137 | * an OpenFlow error code. */ | |
90bf1e07 | 3138 | enum ofperr |
9b045a0c | 3139 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3140 | const struct ofp_header *oh) |
9b045a0c | 3141 | { |
982697a4 BP |
3142 | enum ofpraw raw; |
3143 | struct ofpbuf b; | |
9b045a0c | 3144 | |
982697a4 BP |
3145 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3146 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3147 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3148 | const struct ofp12_flow_removed *ofr; | |
3149 | enum ofperr error; | |
3150 | ||
3151 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3152 | ||
81a76618 | 3153 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3154 | if (error) { |
3155 | return error; | |
3156 | } | |
3157 | ||
81a76618 | 3158 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3159 | fr->cookie = ofr->cookie; |
3160 | fr->reason = ofr->reason; | |
95216219 | 3161 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3162 | fr->duration_sec = ntohl(ofr->duration_sec); |
3163 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3164 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3165 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3166 | fr->packet_count = ntohll(ofr->packet_count); | |
3167 | fr->byte_count = ntohll(ofr->byte_count); | |
3168 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3169 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3170 | |
982697a4 BP |
3171 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3172 | ||
81a76618 BP |
3173 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3174 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3175 | fr->cookie = ofr->cookie; |
3176 | fr->reason = ofr->reason; | |
95216219 | 3177 | fr->table_id = 255; |
9b045a0c BP |
3178 | fr->duration_sec = ntohl(ofr->duration_sec); |
3179 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3180 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3181 | fr->hard_timeout = 0; |
9b045a0c BP |
3182 | fr->packet_count = ntohll(ofr->packet_count); |
3183 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3184 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3185 | struct nx_flow_removed *nfr; |
c2725b60 | 3186 | enum ofperr error; |
9b045a0c | 3187 | |
9b045a0c | 3188 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3189 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3190 | NULL, NULL); | |
9b045a0c BP |
3191 | if (error) { |
3192 | return error; | |
3193 | } | |
6fd6ed71 | 3194 | if (b.size) { |
90bf1e07 | 3195 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3196 | } |
3197 | ||
81a76618 | 3198 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3199 | fr->cookie = nfr->cookie; |
3200 | fr->reason = nfr->reason; | |
745bfd5e | 3201 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3202 | fr->duration_sec = ntohl(nfr->duration_sec); |
3203 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3204 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3205 | fr->hard_timeout = 0; |
9b045a0c BP |
3206 | fr->packet_count = ntohll(nfr->packet_count); |
3207 | fr->byte_count = ntohll(nfr->byte_count); | |
3208 | } else { | |
428b2edd | 3209 | OVS_NOT_REACHED(); |
9b045a0c BP |
3210 | } |
3211 | ||
3212 | return 0; | |
3213 | } | |
3214 | ||
588cd7b5 | 3215 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3216 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3217 | * message. */ |
3218 | struct ofpbuf * | |
3219 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3220 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3221 | { |
3222 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3223 | enum ofp_flow_removed_reason reason = fr->reason; |
3224 | ||
3225 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3226 | reason = OFPRR_DELETE; | |
3227 | } | |
588cd7b5 | 3228 | |
27527aa0 | 3229 | switch (protocol) { |
75fa58f8 | 3230 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3231 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3232 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3233 | case OFPUTIL_P_OF14_OXM: |
3234 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3235 | struct ofp12_flow_removed *ofr; |
3236 | ||
3237 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3238 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3239 | htonl(0), |
3240 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3241 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3242 | ofr->cookie = fr->cookie; | |
81a76618 | 3243 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3244 | ofr->reason = reason; |
95216219 | 3245 | ofr->table_id = fr->table_id; |
83974732 SH |
3246 | ofr->duration_sec = htonl(fr->duration_sec); |
3247 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3248 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3249 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3250 | ofr->packet_count = htonll(fr->packet_count); |
3251 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3252 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3253 | break; |
3254 | } | |
3255 | ||
85813857 BP |
3256 | case OFPUTIL_P_OF10_STD: |
3257 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3258 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3259 | |
982697a4 BP |
3260 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3261 | htonl(0), 0); | |
3262 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3263 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3264 | ofr->cookie = fr->cookie; |
81a76618 | 3265 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3266 | ofr->reason = reason; |
588cd7b5 BP |
3267 | ofr->duration_sec = htonl(fr->duration_sec); |
3268 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3269 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3270 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3271 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3272 | break; |
3273 | } | |
3274 | ||
85813857 BP |
3275 | case OFPUTIL_P_OF10_NXM: |
3276 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3277 | struct nx_flow_removed *nfr; |
3278 | int match_len; | |
3279 | ||
982697a4 BP |
3280 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3281 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3282 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3283 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3284 | |
6fd6ed71 | 3285 | nfr = msg->msg; |
588cd7b5 | 3286 | nfr->cookie = fr->cookie; |
81a76618 | 3287 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3288 | nfr->reason = reason; |
745bfd5e | 3289 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3290 | nfr->duration_sec = htonl(fr->duration_sec); |
3291 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3292 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3293 | nfr->match_len = htons(match_len); | |
3294 | nfr->packet_count = htonll(fr->packet_count); | |
3295 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3296 | break; |
3297 | } | |
3298 | ||
3299 | default: | |
428b2edd | 3300 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3301 | } |
3302 | ||
3303 | return msg; | |
3304 | } | |
3305 | ||
f7cc6bd8 | 3306 | enum ofperr |
65120a8a EJ |
3307 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3308 | const struct ofp_header *oh) | |
3309 | { | |
982697a4 BP |
3310 | enum ofpraw raw; |
3311 | struct ofpbuf b; | |
65120a8a | 3312 | |
65120a8a | 3313 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3314 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3315 | |
982697a4 BP |
3316 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3317 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3318 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3319 | const struct ofp13_packet_in *opi; | |
7cfb9651 | 3320 | int error; |
2e1ae200 JR |
3321 | size_t packet_in_size; |
3322 | ||
3323 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3324 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3325 | } else { | |
3326 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3327 | } | |
7cfb9651 | 3328 | |
2e1ae200 | 3329 | opi = ofpbuf_pull(&b, packet_in_size); |
50dcbd8e | 3330 | error = oxm_pull_match_loose(&b, &pin->flow_metadata); |
7cfb9651 SH |
3331 | if (error) { |
3332 | return error; | |
3333 | } | |
3334 | ||
3335 | if (!ofpbuf_try_pull(&b, 2)) { | |
3336 | return OFPERR_OFPBRC_BAD_LEN; | |
3337 | } | |
3338 | ||
2e1ae200 JR |
3339 | pin->reason = opi->pi.reason; |
3340 | pin->table_id = opi->pi.table_id; | |
3341 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3342 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3343 | |
2e1ae200 JR |
3344 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3345 | pin->cookie = opi->cookie; | |
3346 | } | |
7cfb9651 | 3347 | |
50dcbd8e JG |
3348 | pin->packet = b.data; |
3349 | pin->packet_len = b.size; | |
7cfb9651 | 3350 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3351 | const struct ofp10_packet_in *opi; |
982697a4 | 3352 | |
31a9e63f | 3353 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3354 | |
3355 | pin->packet = opi->data; | |
6fd6ed71 | 3356 | pin->packet_len = b.size; |
65120a8a | 3357 | |
50dcbd8e JG |
3358 | match_init_catchall(&pin->flow_metadata); |
3359 | match_set_in_port(&pin->flow_metadata, u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a EJ |
3360 | pin->reason = opi->reason; |
3361 | pin->buffer_id = ntohl(opi->buffer_id); | |
3362 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3363 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3364 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3365 | ofp_port_t in_port; |
4d197ebb BP |
3366 | enum ofperr error; |
3367 | ||
3368 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3369 | ||
6fd6ed71 PS |
3370 | pin->packet = b.data; |
3371 | pin->packet_len = b.size; | |
4d197ebb BP |
3372 | |
3373 | pin->buffer_id = ntohl(opi->buffer_id); | |
50dcbd8e | 3374 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3375 | if (error) { |
3376 | return error; | |
3377 | } | |
50dcbd8e JG |
3378 | match_init_catchall(&pin->flow_metadata); |
3379 | match_set_in_port(&pin->flow_metadata, in_port); | |
4d197ebb BP |
3380 | pin->total_len = ntohs(opi->total_len); |
3381 | pin->reason = opi->reason; | |
3382 | pin->table_id = opi->table_id; | |
982697a4 | 3383 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3384 | const struct nx_packet_in *npi; |
54834960 EJ |
3385 | int error; |
3386 | ||
54834960 | 3387 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3388 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3389 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3390 | if (error) { |
3391 | return error; | |
3392 | } | |
3393 | ||
3394 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3395 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3396 | } |
3397 | ||
54834960 EJ |
3398 | pin->reason = npi->reason; |
3399 | pin->table_id = npi->table_id; | |
3400 | pin->cookie = npi->cookie; | |
3401 | ||
54834960 EJ |
3402 | pin->buffer_id = ntohl(npi->buffer_id); |
3403 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3404 | |
50dcbd8e JG |
3405 | pin->packet = b.data; |
3406 | pin->packet_len = b.size; | |
65120a8a | 3407 | } else { |
428b2edd | 3408 | OVS_NOT_REACHED(); |
65120a8a EJ |
3409 | } |
3410 | ||
3411 | return 0; | |
3412 | } | |
3413 | ||
0f83fea0 BP |
3414 | static struct ofpbuf * |
3415 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3416 | { | |
3417 | struct ofp10_packet_in *opi; | |
3418 | struct ofpbuf *packet; | |
3419 | ||
3420 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3421 | htonl(0), pin->packet_len); | |
3422 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3423 | opi->total_len = htons(pin->total_len); | |
50dcbd8e | 3424 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
0f83fea0 BP |
3425 | opi->reason = pin->reason; |
3426 | opi->buffer_id = htonl(pin->buffer_id); | |
3427 | ||
3428 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3429 | ||
3430 | return packet; | |
3431 | } | |
3432 | ||
3433 | static struct ofpbuf * | |
3434 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3435 | { | |
3436 | struct nx_packet_in *npi; | |
3437 | struct ofpbuf *packet; | |
0f83fea0 BP |
3438 | size_t match_len; |
3439 | ||
0f83fea0 BP |
3440 | /* The final argument is just an estimate of the space required. */ |
3441 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
50dcbd8e | 3442 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3443 | ofpbuf_put_zeros(packet, sizeof *npi); |
50dcbd8e | 3444 | match_len = nx_put_match(packet, &pin->flow_metadata, 0, 0); |
0f83fea0 BP |
3445 | ofpbuf_put_zeros(packet, 2); |
3446 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3447 | ||
6fd6ed71 | 3448 | npi = packet->msg; |
0f83fea0 BP |
3449 | npi->buffer_id = htonl(pin->buffer_id); |
3450 | npi->total_len = htons(pin->total_len); | |
3451 | npi->reason = pin->reason; | |
3452 | npi->table_id = pin->table_id; | |
3453 | npi->cookie = pin->cookie; | |
3454 | npi->match_len = htons(match_len); | |
3455 | ||
3456 | return packet; | |
3457 | } | |
3458 | ||
4d197ebb BP |
3459 | static struct ofpbuf * |
3460 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3461 | { | |
3462 | struct ofp11_packet_in *opi; | |
3463 | struct ofpbuf *packet; | |
3464 | ||
3465 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3466 | htonl(0), pin->packet_len); | |
3467 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3468 | opi->buffer_id = htonl(pin->buffer_id); | |
50dcbd8e | 3469 | opi->in_port = ofputil_port_to_ofp11(pin->flow_metadata.flow.in_port.ofp_port); |
4d197ebb BP |
3470 | opi->in_phy_port = opi->in_port; |
3471 | opi->total_len = htons(pin->total_len); | |
3472 | opi->reason = pin->reason; | |
3473 | opi->table_id = pin->table_id; | |
3474 | ||
3475 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3476 | ||
3477 | return packet; | |
3478 | } | |
3479 | ||
0f83fea0 BP |
3480 | static struct ofpbuf * |
3481 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3482 | enum ofputil_protocol protocol) | |
3483 | { | |
3484 | struct ofp13_packet_in *opi; | |
0f83fea0 BP |
3485 | enum ofpraw packet_in_raw; |
3486 | enum ofp_version packet_in_version; | |
3487 | size_t packet_in_size; | |
3488 | struct ofpbuf *packet; | |
3489 | ||
3490 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3491 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3492 | packet_in_version = OFP12_VERSION; | |
3493 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3494 | } else { | |
3495 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
b6a3dd9c | 3496 | packet_in_version = ofputil_protocol_to_ofp_version(protocol); |
0f83fea0 BP |
3497 | packet_in_size = sizeof (struct ofp13_packet_in); |
3498 | } | |
3499 | ||
0f83fea0 BP |
3500 | /* The final argument is just an estimate of the space required. */ |
3501 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
50dcbd8e | 3502 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3503 | ofpbuf_put_zeros(packet, packet_in_size); |
50dcbd8e JG |
3504 | oxm_put_match(packet, &pin->flow_metadata, |
3505 | ofputil_protocol_to_ofp_version(protocol)); | |
0f83fea0 BP |
3506 | ofpbuf_put_zeros(packet, 2); |
3507 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3508 | ||
6fd6ed71 | 3509 | opi = packet->msg; |
0f83fea0 BP |
3510 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3511 | opi->pi.total_len = htons(pin->total_len); | |
3512 | opi->pi.reason = pin->reason; | |
3513 | opi->pi.table_id = pin->table_id; | |
b6a3dd9c | 3514 | if (protocol != OFPUTIL_P_OF12_OXM) { |
0f83fea0 BP |
3515 | opi->cookie = pin->cookie; |
3516 | } | |
3517 | ||
3518 | return packet; | |
3519 | } | |
3520 | ||
54834960 EJ |
3521 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3522 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3523 | struct ofpbuf * |
54834960 | 3524 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3525 | enum ofputil_protocol protocol, |
54834960 | 3526 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3527 | { |
54834960 | 3528 | struct ofpbuf *packet; |
ebb57021 | 3529 | |
0f83fea0 BP |
3530 | switch (protocol) { |
3531 | case OFPUTIL_P_OF10_STD: | |
3532 | case OFPUTIL_P_OF10_STD_TID: | |
3533 | case OFPUTIL_P_OF10_NXM: | |
3534 | case OFPUTIL_P_OF10_NXM_TID: | |
3535 | packet = (packet_in_format == NXPIF_NXM | |
3536 | ? ofputil_encode_nx_packet_in(pin) | |
3537 | : ofputil_encode_ofp10_packet_in(pin)); | |
3538 | break; | |
2e1ae200 | 3539 | |
0f83fea0 | 3540 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3541 | packet = ofputil_encode_ofp11_packet_in(pin); |
3542 | break; | |
d94240ec | 3543 | |
0f83fea0 BP |
3544 | case OFPUTIL_P_OF12_OXM: |
3545 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3546 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3547 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3548 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3549 | break; | |
3550 | ||
3551 | default: | |
428b2edd | 3552 | OVS_NOT_REACHED(); |
54834960 | 3553 | } |
54834960 | 3554 | |
0f83fea0 | 3555 | ofpmsg_update_length(packet); |
54834960 | 3556 | return packet; |
ebb57021 BP |
3557 | } |
3558 | ||
5014a89d BP |
3559 | /* Returns a string form of 'reason'. The return value is either a statically |
3560 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3561 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3562 | const char * |
5014a89d BP |
3563 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3564 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3565 | { |
7c1a76a4 BP |
3566 | switch (reason) { |
3567 | case OFPR_NO_MATCH: | |
3568 | return "no_match"; | |
3569 | case OFPR_ACTION: | |
3570 | return "action"; | |
3571 | case OFPR_INVALID_TTL: | |
3572 | return "invalid_ttl"; | |
424467c6 SS |
3573 | case OFPR_ACTION_SET: |
3574 | return "action_set"; | |
3575 | case OFPR_GROUP: | |
3576 | return "group"; | |
3577 | case OFPR_PACKET_OUT: | |
3578 | return "packet_out"; | |
7c1a76a4 BP |
3579 | |
3580 | case OFPR_N_REASONS: | |
3581 | default: | |
5014a89d BP |
3582 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3583 | return reasonbuf; | |
7c1a76a4 BP |
3584 | } |
3585 | } | |
3586 | ||
3587 | bool | |
3588 | ofputil_packet_in_reason_from_string(const char *s, | |
3589 | enum ofp_packet_in_reason *reason) | |
3590 | { | |
3591 | int i; | |
3592 | ||
3593 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3594 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3595 | const char *reason_s; | |
3596 | ||
3597 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3598 | sizeof reasonbuf); | |
3599 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3600 | *reason = i; |
3601 | return true; | |
3602 | } | |
3603 | } | |
3604 | return false; | |
3605 | } | |
3606 | ||
f25d0cf3 BP |
3607 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3608 | * 'po'. | |
3609 | * | |
3610 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3611 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3612 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3613 | * | |
3614 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3615 | enum ofperr |
3616 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3617 | const struct ofp_header *oh, |
f25d0cf3 | 3618 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3619 | { |
982697a4 | 3620 | enum ofpraw raw; |
c6a93eb7 BP |
3621 | struct ofpbuf b; |
3622 | ||
982697a4 BP |
3623 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3624 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3625 | |
eb5ee596 SH |
3626 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3627 | enum ofperr error; | |
3628 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3629 | ||
3630 | po->buffer_id = ntohl(opo->buffer_id); | |
3631 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3632 | if (error) { | |
3633 | return error; | |
3634 | } | |
3635 | ||
e3f8f887 JR |
3636 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3637 | oh->version, ofpacts); | |
eb5ee596 SH |
3638 | if (error) { |
3639 | return error; | |
3640 | } | |
eb5ee596 | 3641 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3642 | enum ofperr error; |
31a9e63f | 3643 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3644 | |
3645 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3646 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3647 | |
e3f8f887 JR |
3648 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3649 | oh->version, ofpacts); | |
8a6bc7cd SH |
3650 | if (error) { |
3651 | return error; | |
3652 | } | |
3653 | } else { | |
428b2edd | 3654 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3655 | } |
3656 | ||
4e022ec0 AW |
3657 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3658 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3659 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3660 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3661 | po->in_port); | |
2e1bfcb6 | 3662 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3663 | } |
3664 | ||
6fd6ed71 PS |
3665 | po->ofpacts = ofpacts->data; |
3666 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3667 | |
3668 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
3669 | po->packet = b.data; |
3670 | po->packet_len = b.size; | |
c6a93eb7 BP |
3671 | } else { |
3672 | po->packet = NULL; | |
3673 | po->packet_len = 0; | |
3674 | } | |
3675 | ||
3676 | return 0; | |
3677 | } | |
6c038611 BP |
3678 | \f |
3679 | /* ofputil_phy_port */ | |
3680 | ||
3681 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3682 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3683 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3684 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3685 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3686 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3687 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3688 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3689 | ||
3690 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3691 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3692 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3693 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3694 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3695 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3696 | |
9e1fd49b BP |
3697 | static enum netdev_features |
3698 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3699 | { |
3700 | uint32_t ofp10 = ntohl(ofp10_); | |
3701 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3702 | } | |
3703 | ||
9e1fd49b BP |
3704 | static ovs_be32 |
3705 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3706 | { |
3707 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3708 | } | |
c6a93eb7 | 3709 | |
9e1fd49b BP |
3710 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3711 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3712 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3713 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3714 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3715 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3716 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3717 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3718 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3719 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3720 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3721 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3722 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3723 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3724 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3725 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3726 | ||
3727 | static enum netdev_features | |
3728 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3729 | { | |
3730 | return ntohl(ofp11) & 0xffff; | |
3731 | } | |
3732 | ||
3733 | static ovs_be32 | |
3734 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3735 | { | |
3736 | return htonl(features & 0xffff); | |
3737 | } | |
3738 | ||
3739 | static enum ofperr | |
3740 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3741 | const struct ofp10_phy_port *opp) | |
3742 | { | |
4e022ec0 | 3743 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3744 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3745 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3746 | ||
3747 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3748 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3749 | ||
3750 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3751 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3752 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3753 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3754 | ||
d02a5f8e BP |
3755 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3756 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3757 | |
3758 | return 0; | |
3759 | } | |
3760 | ||
3761 | static enum ofperr | |
3762 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3763 | const struct ofp11_port *op) | |
3764 | { | |
3765 | enum ofperr error; | |
3766 | ||
9e1fd49b BP |
3767 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3768 | if (error) { | |
3769 | return error; | |
3770 | } | |
3771 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3772 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3773 | ||
3774 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3775 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3776 | |
3777 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3778 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3779 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3780 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3781 | ||
3782 | pp->curr_speed = ntohl(op->curr_speed); | |
3783 | pp->max_speed = ntohl(op->max_speed); | |
3784 | ||
3785 | return 0; | |
3786 | } | |
3787 | ||
8c3cc785 BP |
3788 | static enum ofperr |
3789 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3790 | struct ofputil_phy_port *pp) | |
3791 | { | |
6fd6ed71 | 3792 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 3793 | |
6fd6ed71 | 3794 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
3795 | return OFPERR_OFPBPC_BAD_LEN; |
3796 | } | |
3797 | ||
3798 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3799 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3800 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3801 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3802 | ||
3803 | pp->curr_speed = ntohl(eth->curr_speed); | |
3804 | pp->max_speed = ntohl(eth->max_speed); | |
3805 | ||
3806 | return 0; | |
3807 | } | |
3808 | ||
3809 | static enum ofperr | |
3810 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3811 | { | |
3812 | struct ofpbuf properties; | |
3813 | struct ofp14_port *op; | |
3814 | enum ofperr error; | |
3815 | size_t len; | |
3816 | ||
3817 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3818 | if (!op) { | |
3819 | return OFPERR_OFPBRC_BAD_LEN; | |
3820 | } | |
3821 | ||
3822 | len = ntohs(op->length); | |
6fd6ed71 | 3823 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
3824 | return OFPERR_OFPBRC_BAD_LEN; |
3825 | } | |
3826 | len -= sizeof *op; | |
3827 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3828 | ||
3829 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3830 | if (error) { | |
3831 | return error; | |
3832 | } | |
3833 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3834 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3835 | ||
3836 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3837 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3838 | ||
6fd6ed71 | 3839 | while (properties.size > 0) { |
8c3cc785 BP |
3840 | struct ofpbuf payload; |
3841 | enum ofperr error; | |
3842 | uint16_t type; | |
3843 | ||
3844 | error = ofputil_pull_property(&properties, &payload, &type); | |
3845 | if (error) { | |
3846 | return error; | |
3847 | } | |
3848 | ||
3849 | switch (type) { | |
3850 | case OFPPDPT14_ETHERNET: | |
3851 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3852 | break; | |
3853 | ||
3854 | default: | |
3855 | log_property(true, "unknown port property %"PRIu16, type); | |
3856 | error = 0; | |
3857 | break; | |
3858 | } | |
3859 | ||
3860 | if (error) { | |
3861 | return error; | |
3862 | } | |
3863 | } | |
3864 | ||
3865 | return 0; | |
3866 | } | |
3867 | ||
9e1fd49b BP |
3868 | static void |
3869 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3870 | struct ofp10_phy_port *opp) | |
3871 | { | |
3872 | memset(opp, 0, sizeof *opp); | |
3873 | ||
4e022ec0 | 3874 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3875 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3876 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3877 | ||
3878 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3879 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3880 | ||
3881 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3882 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3883 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3884 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3885 | } | |
3886 | ||
3887 | static void | |
3888 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3889 | struct ofp11_port *op) | |
3890 | { | |
3891 | memset(op, 0, sizeof *op); | |
3892 | ||
3893 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3894 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3895 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3896 | ||
3897 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3898 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3899 | ||
3900 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3901 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3902 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3903 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3904 | ||
3905 | op->curr_speed = htonl(pp->curr_speed); | |
3906 | op->max_speed = htonl(pp->max_speed); | |
3907 | } | |
3908 | ||
8c3cc785 BP |
3909 | static void |
3910 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3911 | struct ofpbuf *b) | |
3912 | { | |
3913 | struct ofp14_port *op; | |
3914 | struct ofp14_port_desc_prop_ethernet *eth; | |
3915 | ||
3916 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3917 | ||
3918 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3919 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3920 | op->length = htons(sizeof *op + sizeof *eth); | |
3921 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3922 | ovs_strlcpy(op->name, pp->name, sizeof op->name); | |
3923 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3924 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3925 | ||
3926 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
3927 | eth->type = htons(OFPPDPT14_ETHERNET); | |
3928 | eth->length = htons(sizeof *eth); | |
3929 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
3930 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3931 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3932 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3933 | eth->curr_speed = htonl(pp->curr_speed); | |
3934 | eth->max_speed = htonl(pp->max_speed); | |
3935 | } | |
3936 | ||
9e1fd49b | 3937 | static void |
2e3fa633 SH |
3938 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3939 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3940 | { |
2e3fa633 SH |
3941 | switch (ofp_version) { |
3942 | case OFP10_VERSION: { | |
6b0f20ac BP |
3943 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3944 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
3945 | break; |
3946 | } | |
3947 | ||
3948 | case OFP11_VERSION: | |
2e1ae200 JR |
3949 | case OFP12_VERSION: |
3950 | case OFP13_VERSION: { | |
6b0f20ac BP |
3951 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
3952 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
3953 | break; |
3954 | } | |
3955 | ||
c37c0382 | 3956 | case OFP14_VERSION: |
42dccab5 | 3957 | case OFP15_VERSION: |
8c3cc785 | 3958 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
3959 | break; |
3960 | ||
2e3fa633 | 3961 | default: |
428b2edd | 3962 | OVS_NOT_REACHED(); |
9e1fd49b BP |
3963 | } |
3964 | } | |
2be393ed | 3965 | |
70ae4f93 BP |
3966 | enum ofperr |
3967 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
3968 | ofp_port_t *port) | |
3969 | { | |
3970 | struct ofpbuf b; | |
3971 | enum ofpraw raw; | |
3972 | ||
3973 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
3974 | raw = ofpraw_pull_assert(&b); | |
3975 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
3976 | *port = OFPP_ANY; | |
3977 | return 0; | |
3978 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
3979 | ovs_be32 *ofp11_port; | |
3980 | ||
3981 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
3982 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
3983 | } else { | |
3984 | OVS_NOT_REACHED(); | |
3985 | } | |
3986 | } | |
3987 | ||
3988 | struct ofpbuf * | |
3989 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
3990 | ofp_port_t port) | |
3991 | { | |
3992 | struct ofpbuf *request; | |
3993 | ovs_be32 ofp11_port; | |
3994 | ||
3995 | switch (ofp_version) { | |
3996 | case OFP10_VERSION: | |
3997 | case OFP11_VERSION: | |
3998 | case OFP12_VERSION: | |
3999 | case OFP13_VERSION: | |
4000 | case OFP14_VERSION: | |
4001 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4002 | ofp_version, 0); | |
4003 | break; | |
4004 | ||
4005 | case OFP15_VERSION: | |
4006 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, | |
4007 | ofp_version, 0); | |
4008 | ofp11_port = ofputil_port_to_ofp11(port); | |
4009 | ofpbuf_put(request, &ofp11_port, sizeof ofp11_port); | |
4010 | break; | |
4011 | ||
4012 | default: | |
4013 | OVS_NOT_REACHED(); | |
4014 | } | |
4015 | ||
4016 | return request; | |
4017 | } | |
4018 | ||
2be393ed | 4019 | void |
e28ac5cf | 4020 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4021 | struct ovs_list *replies) |
2be393ed | 4022 | { |
6b0f20ac | 4023 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 4024 | size_t start_ofs = reply->size; |
c37c0382 | 4025 | |
6b0f20ac BP |
4026 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4027 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4028 | } |
9e1fd49b BP |
4029 | \f |
4030 | /* ofputil_switch_features */ | |
4031 | ||
4032 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4033 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4034 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4035 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4036 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4037 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4038 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4039 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4040 | ||
60202987 SH |
4041 | static uint32_t |
4042 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4043 | { | |
0746a84f | 4044 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4045 | switch (ofp_version) { |
4046 | case OFP10_VERSION: | |
4047 | case OFP11_VERSION: | |
4048 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4049 | case OFP12_VERSION: | |
2e1ae200 | 4050 | case OFP13_VERSION: |
c37c0382 | 4051 | case OFP14_VERSION: |
42dccab5 | 4052 | case OFP15_VERSION: |
18cc69d9 | 4053 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4054 | default: |
4055 | /* Caller needs to check osf->header.version itself */ | |
4056 | return 0; | |
4057 | } | |
4058 | } | |
4059 | ||
9e1fd49b BP |
4060 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4061 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4062 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4063 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4064 | * OFPERR_* value. */ |
4065 | enum ofperr | |
982697a4 | 4066 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4067 | struct ofputil_switch_features *features, |
4068 | struct ofpbuf *b) | |
4069 | { | |
982697a4 BP |
4070 | const struct ofp_switch_features *osf; |
4071 | enum ofpraw raw; | |
4072 | ||
4073 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4074 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4075 | |
982697a4 | 4076 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4077 | features->datapath_id = ntohll(osf->datapath_id); |
4078 | features->n_buffers = ntohl(osf->n_buffers); | |
4079 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4080 | features->auxiliary_id = 0; |
9e1fd49b | 4081 | |
60202987 SH |
4082 | features->capabilities = ntohl(osf->capabilities) & |
4083 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4084 | |
982697a4 | 4085 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4086 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4087 | features->capabilities |= OFPUTIL_C_STP; | |
4088 | } | |
08d1e234 BP |
4089 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4090 | OFP10_VERSION); | |
2e1ae200 JR |
4091 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4092 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4093 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4094 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4095 | } | |
08d1e234 | 4096 | features->ofpacts = 0; |
2e1ae200 JR |
4097 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4098 | features->auxiliary_id = osf->auxiliary_id; | |
4099 | } | |
9e1fd49b BP |
4100 | } else { |
4101 | return OFPERR_OFPBRC_BAD_VERSION; | |
4102 | } | |
4103 | ||
4104 | return 0; | |
4105 | } | |
4106 | ||
fca6d553 BP |
4107 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4108 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4109 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4110 | * | |
4111 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4112 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4113 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4114 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4115 | * message. | |
4116 | * | |
4117 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4118 | * stats request to get the ports. */ | |
347b7ac4 | 4119 | bool |
fca6d553 | 4120 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4121 | { |
6fd6ed71 | 4122 | struct ofp_header *oh = b->data; |
13e1aff8 | 4123 | size_t phy_port_size; |
347b7ac4 | 4124 | |
fca6d553 | 4125 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4126 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4127 | return false; |
13e1aff8 BP |
4128 | } |
4129 | ||
4130 | phy_port_size = (oh->version == OFP10_VERSION | |
4131 | ? sizeof(struct ofp10_phy_port) | |
4132 | : sizeof(struct ofp11_port)); | |
4133 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4134 | /* There's room for additional ports in the feature reply. | |
4135 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4136 | return true; |
4137 | } | |
13e1aff8 BP |
4138 | |
4139 | /* The feature reply has no room for more ports. Probably the list is | |
4140 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4141 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4142 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4143 | ofpmsg_update_length(b); |
4144 | return false; | |
347b7ac4 JP |
4145 | } |
4146 | ||
9e1fd49b BP |
4147 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4148 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4149 | * information to the buffer with subsequent calls to | |
4150 | * ofputil_put_switch_features_port(). */ | |
4151 | struct ofpbuf * | |
4152 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4153 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4154 | { | |
4155 | struct ofp_switch_features *osf; | |
4156 | struct ofpbuf *b; | |
2e3fa633 SH |
4157 | enum ofp_version version; |
4158 | enum ofpraw raw; | |
982697a4 BP |
4159 | |
4160 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4161 | switch (version) { |
4162 | case OFP10_VERSION: | |
4163 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4164 | break; | |
4165 | case OFP11_VERSION: | |
4166 | case OFP12_VERSION: | |
4167 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4168 | break; | |
2e1ae200 | 4169 | case OFP13_VERSION: |
c37c0382 | 4170 | case OFP14_VERSION: |
42dccab5 | 4171 | case OFP15_VERSION: |
2e1ae200 JR |
4172 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4173 | break; | |
2e3fa633 | 4174 | default: |
428b2edd | 4175 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4176 | } |
4177 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4178 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4179 | osf->datapath_id = htonll(features->datapath_id); |
4180 | osf->n_buffers = htonl(features->n_buffers); | |
4181 | osf->n_tables = features->n_tables; | |
4182 | ||
4183 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4184 | osf->capabilities = htonl(features->capabilities & |
4185 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4186 | switch (version) { |
4187 | case OFP10_VERSION: | |
9e1fd49b BP |
4188 | if (features->capabilities & OFPUTIL_C_STP) { |
4189 | osf->capabilities |= htonl(OFPC10_STP); | |
4190 | } | |
08d1e234 BP |
4191 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4192 | OFP10_VERSION); | |
2e3fa633 | 4193 | break; |
2e1ae200 | 4194 | case OFP13_VERSION: |
c37c0382 | 4195 | case OFP14_VERSION: |
42dccab5 | 4196 | case OFP15_VERSION: |
2e1ae200 JR |
4197 | osf->auxiliary_id = features->auxiliary_id; |
4198 | /* fall through */ | |
2e3fa633 SH |
4199 | case OFP11_VERSION: |
4200 | case OFP12_VERSION: | |
9e1fd49b BP |
4201 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4202 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4203 | } | |
2e3fa633 SH |
4204 | break; |
4205 | default: | |
428b2edd | 4206 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4207 | } |
4208 | ||
4209 | return b; | |
4210 | } | |
4211 | ||
4212 | /* Encodes 'pp' into the format required by the switch_features message already | |
4213 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4214 | * and appends the encoded version to 'b'. */ | |
4215 | void | |
4216 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4217 | struct ofpbuf *b) | |
4218 | { | |
6fd6ed71 | 4219 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4220 | |
e0c91c0c | 4221 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4222 | /* Try adding a port description to the message, but drop it again if |
4223 | * the buffer overflows. (This possibility for overflow is why | |
4224 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4225 | size_t start_ofs = b->size; |
e0c91c0c | 4226 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4227 | if (b->size > UINT16_MAX) { |
4228 | b->size = start_ofs; | |
6b0f20ac | 4229 | } |
e0c91c0c | 4230 | } |
9e1fd49b BP |
4231 | } |
4232 | \f | |
4233 | /* ofputil_port_status */ | |
4234 | ||
4235 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4236 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4237 | enum ofperr | |
982697a4 | 4238 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4239 | struct ofputil_port_status *ps) |
4240 | { | |
982697a4 | 4241 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4242 | struct ofpbuf b; |
4243 | int retval; | |
4244 | ||
982697a4 BP |
4245 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4246 | ofpraw_pull_assert(&b); | |
4247 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4248 | ||
9e1fd49b BP |
4249 | if (ops->reason != OFPPR_ADD && |
4250 | ops->reason != OFPPR_DELETE && | |
4251 | ops->reason != OFPPR_MODIFY) { | |
4252 | return OFPERR_NXBRC_BAD_REASON; | |
4253 | } | |
4254 | ps->reason = ops->reason; | |
4255 | ||
982697a4 | 4256 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4257 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4258 | return retval; |
4259 | } | |
4260 | ||
4261 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4262 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4263 | * a buffer owned by the caller. */ | |
4264 | struct ofpbuf * | |
4265 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4266 | enum ofputil_protocol protocol) | |
4267 | { | |
4268 | struct ofp_port_status *ops; | |
4269 | struct ofpbuf *b; | |
2e3fa633 SH |
4270 | enum ofp_version version; |
4271 | enum ofpraw raw; | |
982697a4 BP |
4272 | |
4273 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4274 | switch (version) { |
4275 | case OFP10_VERSION: | |
4276 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4277 | break; | |
4278 | ||
4279 | case OFP11_VERSION: | |
4280 | case OFP12_VERSION: | |
2e1ae200 | 4281 | case OFP13_VERSION: |
2e3fa633 SH |
4282 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4283 | break; | |
4284 | ||
8c3cc785 | 4285 | case OFP14_VERSION: |
42dccab5 | 4286 | case OFP15_VERSION: |
8c3cc785 BP |
4287 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4288 | break; | |
4289 | ||
2e3fa633 | 4290 | default: |
428b2edd | 4291 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4292 | } |
4293 | ||
4294 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4295 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4296 | ops->reason = ps->reason; |
982697a4 BP |
4297 | ofputil_put_phy_port(version, &ps->desc, b); |
4298 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4299 | return b; |
4300 | } | |
918f2b82 | 4301 | |
9e1fd49b BP |
4302 | /* ofputil_port_mod */ |
4303 | ||
18cc69d9 BP |
4304 | static enum ofperr |
4305 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4306 | struct ofputil_port_mod *pm) | |
4307 | { | |
6fd6ed71 | 4308 | struct ofp14_port_mod_prop_ethernet *eth = property->data; |
18cc69d9 | 4309 | |
6fd6ed71 | 4310 | if (property->size != sizeof *eth) { |
18cc69d9 BP |
4311 | return OFPERR_OFPBRC_BAD_LEN; |
4312 | } | |
4313 | ||
4314 | pm->advertise = netdev_port_features_from_ofp11(eth->advertise); | |
4315 | return 0; | |
4316 | } | |
4317 | ||
9e1fd49b BP |
4318 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4319 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4320 | enum ofperr | |
4321 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4322 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4323 | { |
982697a4 BP |
4324 | enum ofpraw raw; |
4325 | struct ofpbuf b; | |
9e1fd49b | 4326 | |
982697a4 BP |
4327 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4328 | raw = ofpraw_pull_assert(&b); | |
4329 | ||
4330 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
6fd6ed71 | 4331 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4332 | |
4e022ec0 | 4333 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
4334 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
4335 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
4336 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4337 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4338 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4339 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4340 | enum ofperr error; |
4341 | ||
9e1fd49b BP |
4342 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4343 | if (error) { | |
4344 | return error; | |
4345 | } | |
4346 | ||
4347 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4348 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4349 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4350 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4351 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4352 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4353 | enum ofperr error; | |
4354 | ||
4355 | memset(pm, 0, sizeof *pm); | |
4356 | ||
4357 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4358 | if (error) { | |
4359 | return error; | |
4360 | } | |
4361 | ||
4362 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4363 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4364 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4365 | ||
6fd6ed71 | 4366 | while (b.size > 0) { |
18cc69d9 BP |
4367 | struct ofpbuf property; |
4368 | enum ofperr error; | |
4369 | uint16_t type; | |
4370 | ||
4371 | error = ofputil_pull_property(&b, &property, &type); | |
4372 | if (error) { | |
4373 | return error; | |
4374 | } | |
4375 | ||
4376 | switch (type) { | |
4377 | case OFPPMPT14_ETHERNET: | |
4378 | error = parse_port_mod_ethernet_property(&property, pm); | |
4379 | break; | |
4380 | ||
4381 | default: | |
4382 | log_property(loose, "unknown port_mod property %"PRIu16, type); | |
4383 | if (loose) { | |
4384 | error = 0; | |
4385 | } else if (type == OFPPMPT14_EXPERIMENTER) { | |
4386 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
4387 | } else { | |
4388 | error = OFPERR_OFPBRC_BAD_TYPE; | |
4389 | } | |
4390 | break; | |
4391 | } | |
4392 | ||
4393 | if (error) { | |
4394 | return error; | |
4395 | } | |
4396 | } | |
9e1fd49b | 4397 | } else { |
982697a4 | 4398 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4399 | } |
4400 | ||
4401 | pm->config &= pm->mask; | |
4402 | return 0; | |
4403 | } | |
4404 | ||
4405 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4406 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4407 | * owned by the caller. */ | |
4408 | struct ofpbuf * | |
4409 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4410 | enum ofputil_protocol protocol) | |
4411 | { | |
2e3fa633 | 4412 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4413 | struct ofpbuf *b; |
4414 | ||
2e3fa633 SH |
4415 | switch (ofp_version) { |
4416 | case OFP10_VERSION: { | |
9e1fd49b BP |
4417 | struct ofp10_port_mod *opm; |
4418 | ||
982697a4 BP |
4419 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4420 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4421 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4422 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4423 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4424 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4425 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4426 | break; |
4427 | } | |
4428 | ||
5fe7c919 | 4429 | case OFP11_VERSION: |
2e1ae200 JR |
4430 | case OFP12_VERSION: |
4431 | case OFP13_VERSION: { | |
9e1fd49b BP |
4432 | struct ofp11_port_mod *opm; |
4433 | ||
982697a4 BP |
4434 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4435 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4436 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4437 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4438 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4439 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4440 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4441 | break; |
4442 | } | |
42dccab5 BP |
4443 | case OFP14_VERSION: |
4444 | case OFP15_VERSION: { | |
18cc69d9 BP |
4445 | struct ofp14_port_mod_prop_ethernet *eth; |
4446 | struct ofp14_port_mod *opm; | |
4447 | ||
4448 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth); | |
4449 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4450 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
4451 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); | |
4452 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4453 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4454 | ||
4455 | if (pm->advertise) { | |
4456 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
4457 | eth->type = htons(OFPPMPT14_ETHERNET); | |
4458 | eth->length = htons(sizeof *eth); | |
4459 | eth->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
4460 | } | |
c37c0382 | 4461 | break; |
18cc69d9 | 4462 | } |
918f2b82 | 4463 | default: |
428b2edd | 4464 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4465 | } |
4466 | ||
4467 | return b; | |
4468 | } | |
72b25867 BP |
4469 | \f |
4470 | /* Table features. */ | |
918f2b82 | 4471 | |
5deff5aa | 4472 | static enum ofperr |
9a4eddbb | 4473 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
72b25867 | 4474 | uint16_t *typep) |
5deff5aa | 4475 | { |
9a4eddbb | 4476 | enum ofperr error; |
5deff5aa | 4477 | |
9a4eddbb BP |
4478 | error = ofputil_pull_property(msg, payload, typep); |
4479 | if (payload && !error) { | |
4480 | ofpbuf_pull(payload, sizeof(struct ofp_prop_header)); | |
5deff5aa | 4481 | } |
9a4eddbb | 4482 | return error; |
5deff5aa AW |
4483 | } |
4484 | ||
4485 | static enum ofperr | |
08d1e234 BP |
4486 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4487 | uint64_t *ofpacts) | |
5deff5aa | 4488 | { |
08d1e234 | 4489 | uint32_t types = 0; |
5deff5aa | 4490 | |
6fd6ed71 | 4491 | while (payload->size > 0) { |
08d1e234 BP |
4492 | uint16_t type; |
4493 | enum ofperr error; | |
4494 | ||
72b25867 | 4495 | error = ofputil_pull_property__(payload, NULL, 1, &type); |
5deff5aa AW |
4496 | if (error) { |
4497 | return error; | |
4498 | } | |
08d1e234 BP |
4499 | if (type < CHAR_BIT * sizeof types) { |
4500 | types |= 1u << type; | |
5deff5aa AW |
4501 | } |
4502 | } | |
08d1e234 BP |
4503 | |
4504 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4505 | return 0; |
4506 | } | |
4507 | ||
4508 | static enum ofperr | |
4509 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4510 | { | |
4511 | *insts = 0; | |
6fd6ed71 | 4512 | while (payload->size > 0) { |
5deff5aa AW |
4513 | enum ovs_instruction_type inst; |
4514 | enum ofperr error; | |
4515 | uint16_t ofpit; | |
4516 | ||
72b25867 BP |
4517 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4518 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4519 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4520 | * and do not mention any padding before the first instruction ID. | |
4521 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4522 | * aligned on an odd 4-byte boundary.) | |
4523 | * | |
4524 | * Anyway, we just assume they're all glommed together on byte | |
4525 | * boundaries. */ | |
4526 | error = ofputil_pull_property__(payload, NULL, 1, &ofpit); | |
5deff5aa AW |
4527 | if (error) { |
4528 | return error; | |
4529 | } | |
4530 | ||
4531 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4532 | if (!error) { | |
4533 | *insts |= 1u << inst; | |
4534 | } else if (!loose) { | |
4535 | return error; | |
4536 | } | |
4537 | } | |
4538 | return 0; | |
4539 | } | |
4540 | ||
4541 | static enum ofperr | |
4542 | parse_table_features_next_table(struct ofpbuf *payload, | |
4543 | unsigned long int *next_tables) | |
4544 | { | |
4545 | size_t i; | |
4546 | ||
4547 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
4548 | for (i = 0; i < payload->size; i++) { |
4549 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 4550 | if (id >= 255) { |
9a4eddbb | 4551 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4552 | } |
4553 | bitmap_set1(next_tables, id); | |
4554 | } | |
4555 | return 0; | |
4556 | } | |
4557 | ||
5deff5aa AW |
4558 | static enum ofperr |
4559 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4560 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4561 | { |
abadfcb0 BP |
4562 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4563 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4564 | |
6fd6ed71 | 4565 | while (payload->size > 0) { |
5deff5aa AW |
4566 | const struct mf_field *field; |
4567 | enum ofperr error; | |
4568 | bool hasmask; | |
4569 | ||
178742f9 | 4570 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4571 | if (!error) { |
abadfcb0 | 4572 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4573 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4574 | return error; | |
4575 | } | |
4576 | } | |
4577 | if (exactp) { | |
4578 | *exactp = exact; | |
abadfcb0 | 4579 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4580 | return OFPERR_OFPBMC_BAD_MASK; |
4581 | } | |
4582 | if (maskedp) { | |
4583 | *maskedp = masked; | |
abadfcb0 | 4584 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4585 | return OFPERR_OFPBMC_BAD_MASK; |
4586 | } | |
4587 | return 0; | |
4588 | } | |
4589 | ||
4590 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4591 | * ofputil_table_features in 'tf'. | |
4592 | * | |
4593 | * If 'loose' is true, this function ignores properties and values that it does | |
4594 | * not understand, as a controller would want to do when interpreting | |
4595 | * capabilities provided by a switch. If 'loose' is false, this function | |
4596 | * treats unknown properties and values as an error, as a switch would want to | |
4597 | * do when interpreting a configuration request made by a controller. | |
4598 | * | |
4599 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4600 | * this function multiple times for a single 'msg' iterates through the tables | |
4601 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4602 | * and not modify them between calls. | |
4603 | * | |
4604 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4605 | * a positive "enum ofperr" value. */ | |
4606 | int | |
4607 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4608 | struct ofputil_table_features *tf, bool loose) | |
4609 | { | |
08d1e234 | 4610 | const struct ofp_header *oh; |
5deff5aa | 4611 | struct ofp13_table_features *otf; |
ae665de5 | 4612 | struct ofpbuf properties; |
5deff5aa AW |
4613 | unsigned int len; |
4614 | ||
3c1bb396 BP |
4615 | memset(tf, 0, sizeof *tf); |
4616 | ||
6fd6ed71 | 4617 | if (!msg->header) { |
5deff5aa AW |
4618 | ofpraw_pull_assert(msg); |
4619 | } | |
6fd6ed71 | 4620 | oh = msg->header; |
5deff5aa | 4621 | |
6fd6ed71 | 4622 | if (!msg->size) { |
5deff5aa AW |
4623 | return EOF; |
4624 | } | |
4625 | ||
6fd6ed71 | 4626 | if (msg->size < sizeof *otf) { |
9a4eddbb | 4627 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4628 | } |
4629 | ||
6fd6ed71 | 4630 | otf = msg->data; |
5deff5aa | 4631 | len = ntohs(otf->length); |
6fd6ed71 | 4632 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 4633 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4634 | } |
ae665de5 BP |
4635 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4636 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4637 | |
4638 | tf->table_id = otf->table_id; | |
4639 | if (tf->table_id == OFPTT_ALL) { | |
4640 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4641 | } | |
4642 | ||
4643 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4644 | tf->metadata_match = otf->metadata_match; | |
4645 | tf->metadata_write = otf->metadata_write; | |
3c1bb396 | 4646 | tf->miss_config = ofputil_table_miss_from_config(otf->config, oh->version); |
5deff5aa AW |
4647 | tf->max_entries = ntohl(otf->max_entries); |
4648 | ||
6fd6ed71 | 4649 | while (properties.size > 0) { |
5deff5aa AW |
4650 | struct ofpbuf payload; |
4651 | enum ofperr error; | |
4652 | uint16_t type; | |
4653 | ||
ae665de5 | 4654 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4655 | if (error) { |
4656 | return error; | |
4657 | } | |
4658 | ||
4659 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4660 | case OFPTFPT13_INSTRUCTIONS: | |
4661 | error = parse_instruction_ids(&payload, loose, | |
4662 | &tf->nonmiss.instructions); | |
4663 | break; | |
4664 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4665 | error = parse_instruction_ids(&payload, loose, | |
4666 | &tf->miss.instructions); | |
4667 | break; | |
4668 | ||
4669 | case OFPTFPT13_NEXT_TABLES: | |
4670 | error = parse_table_features_next_table(&payload, | |
4671 | tf->nonmiss.next); | |
4672 | break; | |
4673 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4674 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4675 | break; | |
4676 | ||
4677 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4678 | error = parse_action_bitmap(&payload, oh->version, |
4679 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4680 | break; |
4681 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4682 | error = parse_action_bitmap(&payload, oh->version, |
4683 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4684 | break; |
4685 | ||
4686 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4687 | error = parse_action_bitmap(&payload, oh->version, |
4688 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4689 | break; |
4690 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4691 | error = parse_action_bitmap(&payload, oh->version, |
4692 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4693 | break; |
4694 | ||
4695 | case OFPTFPT13_MATCH: | |
4696 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4697 | break; | |
4698 | case OFPTFPT13_WILDCARDS: | |
4699 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4700 | break; | |
4701 | ||
4702 | case OFPTFPT13_WRITE_SETFIELD: | |
4703 | error = parse_oxms(&payload, loose, | |
4704 | &tf->nonmiss.write.set_fields, NULL); | |
4705 | break; | |
4706 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4707 | error = parse_oxms(&payload, loose, | |
4708 | &tf->miss.write.set_fields, NULL); | |
4709 | break; | |
4710 | case OFPTFPT13_APPLY_SETFIELD: | |
4711 | error = parse_oxms(&payload, loose, | |
4712 | &tf->nonmiss.apply.set_fields, NULL); | |
4713 | break; | |
4714 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4715 | error = parse_oxms(&payload, loose, | |
4716 | &tf->miss.apply.set_fields, NULL); | |
4717 | break; | |
4718 | ||
4719 | case OFPTFPT13_EXPERIMENTER: | |
4720 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb BP |
4721 | default: |
4722 | log_property(loose, "unknown table features property %"PRIu16, | |
4723 | type); | |
4724 | error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE; | |
5deff5aa AW |
4725 | break; |
4726 | } | |
4727 | if (error) { | |
4728 | return error; | |
4729 | } | |
4730 | } | |
4731 | ||
4732 | /* Fix inconsistencies: | |
4733 | * | |
e7227821 BP |
4734 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4735 | * fields are matchable. | |
5deff5aa AW |
4736 | * |
4737 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4738 | * that is arbitrarily maskable can be wildcarded entirely. |
4739 | * | |
4740 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4741 | * must be matchable for it to be meaningfully wildcarded. */ | |
4742 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4743 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4744 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4745 | |
4746 | return 0; | |
4747 | } | |
4748 | ||
4749 | /* Encodes and returns a request to obtain the table features of a switch. | |
4750 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4751 | struct ofpbuf * | |
4752 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4753 | { | |
4754 | struct ofpbuf *request = NULL; | |
4755 | ||
4756 | switch (ofp_version) { | |
4757 | case OFP10_VERSION: | |
4758 | case OFP11_VERSION: | |
4759 | case OFP12_VERSION: | |
4760 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4761 | "(\'-O OpenFlow13\')"); | |
4762 | case OFP13_VERSION: | |
4763 | case OFP14_VERSION: | |
42dccab5 | 4764 | case OFP15_VERSION: |
5deff5aa AW |
4765 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4766 | ofp_version, 0); | |
4767 | break; | |
4768 | default: | |
4769 | OVS_NOT_REACHED(); | |
4770 | } | |
4771 | ||
4772 | return request; | |
4773 | } | |
4774 | ||
3c4e10fb BP |
4775 | static void |
4776 | put_fields_property(struct ofpbuf *reply, | |
4777 | const struct mf_bitmap *fields, | |
4778 | const struct mf_bitmap *masks, | |
4779 | enum ofp13_table_feature_prop_type property, | |
4780 | enum ofp_version version) | |
4781 | { | |
4782 | size_t start_ofs; | |
4783 | int field; | |
4784 | ||
4785 | start_ofs = start_property(reply, property); | |
4786 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { | |
178742f9 BP |
4787 | nx_put_header(reply, field, version, |
4788 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb BP |
4789 | } |
4790 | end_property(reply, start_ofs); | |
4791 | } | |
4792 | ||
4793 | static void | |
4794 | put_table_action_features(struct ofpbuf *reply, | |
4795 | const struct ofputil_table_action_features *taf, | |
4796 | enum ofp13_table_feature_prop_type actions_type, | |
4797 | enum ofp13_table_feature_prop_type set_fields_type, | |
4798 | int miss_offset, enum ofp_version version) | |
4799 | { | |
4800 | size_t start_ofs; | |
4801 | ||
4802 | start_ofs = start_property(reply, actions_type + miss_offset); | |
4803 | put_bitmap_properties(reply, | |
4804 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4805 | version))); | |
4806 | end_property(reply, start_ofs); | |
4807 | ||
4808 | put_fields_property(reply, &taf->set_fields, NULL, | |
4809 | set_fields_type + miss_offset, version); | |
4810 | } | |
4811 | ||
4812 | static void | |
4813 | put_table_instruction_features( | |
4814 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4815 | int miss_offset, enum ofp_version version) | |
4816 | { | |
4817 | size_t start_ofs; | |
4818 | uint8_t table_id; | |
4819 | ||
4820 | start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset); | |
4821 | put_bitmap_properties(reply, | |
4822 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4823 | version))); | |
4824 | end_property(reply, start_ofs); | |
4825 | ||
4826 | start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset); | |
4827 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { | |
4828 | ofpbuf_put(reply, &table_id, 1); | |
4829 | } | |
4830 | end_property(reply, start_ofs); | |
4831 | ||
4832 | put_table_action_features(reply, &tif->write, | |
4833 | OFPTFPT13_WRITE_ACTIONS, | |
4834 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4835 | put_table_action_features(reply, &tif->apply, | |
4836 | OFPTFPT13_APPLY_ACTIONS, | |
4837 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4838 | } | |
4839 | ||
4840 | void | |
4841 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 4842 | struct ovs_list *replies) |
3c4e10fb BP |
4843 | { |
4844 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4845 | enum ofp_version version = ofpmp_version(replies); | |
6fd6ed71 | 4846 | size_t start_ofs = reply->size; |
3c4e10fb BP |
4847 | struct ofp13_table_features *otf; |
4848 | ||
4849 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4850 | otf->table_id = tf->table_id; | |
4851 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4852 | otf->metadata_match = tf->metadata_match; | |
4853 | otf->metadata_write = tf->metadata_write; | |
4854 | otf->config = ofputil_table_miss_to_config(tf->miss_config, version); | |
4855 | otf->max_entries = htonl(tf->max_entries); | |
4856 | ||
4857 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4858 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4859 | ||
4860 | put_fields_property(reply, &tf->match, &tf->mask, | |
4861 | OFPTFPT13_MATCH, version); | |
4862 | put_fields_property(reply, &tf->wildcard, NULL, | |
4863 | OFPTFPT13_WILDCARDS, version); | |
4864 | ||
4865 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 4866 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
4867 | ofpmp_postappend(replies, start_ofs); |
4868 | } | |
4869 | ||
918f2b82 AZ |
4870 | /* ofputil_table_mod */ |
4871 | ||
3c1bb396 BP |
4872 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
4873 | * table configuration (a table mod, table stats, or table features message), | |
4874 | * returns the table miss configuration that it specifies. */ | |
4875 | static enum ofputil_table_miss | |
4876 | ofputil_table_miss_from_config(ovs_be32 config_, enum ofp_version version) | |
4877 | { | |
4878 | uint32_t config = ntohl(config_); | |
4879 | ||
4880 | if (version < OFP13_VERSION) { | |
4881 | switch (config & OFPTC11_TABLE_MISS_MASK) { | |
4882 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
4883 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4884 | ||
4885 | case OFPTC11_TABLE_MISS_CONTINUE: | |
4886 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
4887 | ||
4888 | case OFPTC11_TABLE_MISS_DROP: | |
4889 | return OFPUTIL_TABLE_MISS_DROP; | |
4890 | ||
4891 | default: | |
4892 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
4893 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4894 | } | |
4895 | } else { | |
4896 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
4897 | } | |
4898 | } | |
4899 | ||
4900 | /* Given a table miss configuration, returns the corresponding OpenFlow table | |
4901 | * configuration for use in an OpenFlow message of the given 'version'. */ | |
4902 | ovs_be32 | |
4903 | ofputil_table_miss_to_config(enum ofputil_table_miss miss, | |
4904 | enum ofp_version version) | |
4905 | { | |
4906 | if (version < OFP13_VERSION) { | |
4907 | switch (miss) { | |
4908 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
4909 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
4910 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
4911 | ||
4912 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
4913 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
4914 | ||
4915 | case OFPUTIL_TABLE_MISS_DROP: | |
4916 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
4917 | ||
4918 | default: | |
4919 | OVS_NOT_REACHED(); | |
4920 | } | |
4921 | } else { | |
4922 | return htonl(0); | |
4923 | } | |
4924 | } | |
4925 | ||
918f2b82 AZ |
4926 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
4927 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4928 | enum ofperr | |
4929 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4930 | struct ofputil_table_mod *pm) | |
4931 | { | |
4932 | enum ofpraw raw; | |
4933 | struct ofpbuf b; | |
4934 | ||
4935 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4936 | raw = ofpraw_pull_assert(&b); | |
4937 | ||
4938 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
6fd6ed71 | 4939 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
4940 | |
4941 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4942 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4943 | oh->version); | |
37ab26e8 BP |
4944 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
4945 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
4946 | ||
4947 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4948 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4949 | oh->version); | |
37ab26e8 BP |
4950 | /* We do not understand any properties yet, so we do not bother |
4951 | * parsing them. */ | |
918f2b82 AZ |
4952 | } else { |
4953 | return OFPERR_OFPBRC_BAD_TYPE; | |
4954 | } | |
4955 | ||
4956 | return 0; | |
4957 | } | |
4958 | ||
4959 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
4960 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4961 | * owned by the caller. */ | |
4962 | struct ofpbuf * | |
4963 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
4964 | enum ofputil_protocol protocol) | |
4965 | { | |
4966 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
4967 | struct ofpbuf *b; | |
4968 | ||
4969 | switch (ofp_version) { | |
4970 | case OFP10_VERSION: { | |
4971 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
4972 | "(\'-O OpenFlow11\')"); | |
4973 | break; | |
4974 | } | |
4975 | case OFP11_VERSION: | |
4976 | case OFP12_VERSION: | |
4977 | case OFP13_VERSION: { | |
4978 | struct ofp11_table_mod *otm; | |
2e3fa633 | 4979 | |
918f2b82 AZ |
4980 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
4981 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
4982 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
4983 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
4984 | ofp_version); | |
918f2b82 AZ |
4985 | break; |
4986 | } | |
42dccab5 BP |
4987 | case OFP14_VERSION: |
4988 | case OFP15_VERSION: { | |
37ab26e8 BP |
4989 | struct ofp14_table_mod *otm; |
4990 | ||
4991 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
4992 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
4993 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
4994 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
4995 | ofp_version); | |
c37c0382 | 4996 | break; |
37ab26e8 | 4997 | } |
2e3fa633 | 4998 | default: |
428b2edd | 4999 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5000 | } |
5001 | ||
5002 | return b; | |
5003 | } | |
2b07c8b1 | 5004 | \f |
6ea4776b JR |
5005 | /* ofputil_role_request */ |
5006 | ||
5007 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5008 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5009 | * OFPERR_* value. */ | |
5010 | enum ofperr | |
5011 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5012 | struct ofputil_role_request *rr) | |
5013 | { | |
6ea4776b JR |
5014 | struct ofpbuf b; |
5015 | enum ofpraw raw; | |
5016 | ||
6ea4776b JR |
5017 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5018 | raw = ofpraw_pull_assert(&b); | |
5019 | ||
f4f1ea7e BP |
5020 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5021 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5022 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5023 | |
f4f1ea7e BP |
5024 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5025 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5026 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5027 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5028 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5029 | } |
5030 | ||
f4f1ea7e | 5031 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5032 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5033 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5034 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5035 | rr->have_generation_id = false; |
5036 | rr->generation_id = 0; | |
5037 | } else { | |
5038 | rr->have_generation_id = true; | |
5039 | rr->generation_id = ntohll(orr->generation_id); | |
5040 | } | |
5041 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5042 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5043 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5044 | |
5045 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5046 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5047 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5048 | ||
5049 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5050 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5051 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5052 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5053 | } | |
6ea4776b | 5054 | |
f4f1ea7e BP |
5055 | rr->role = ntohl(nrr->role) + 1; |
5056 | rr->have_generation_id = false; | |
5057 | rr->generation_id = 0; | |
5058 | } else { | |
428b2edd | 5059 | OVS_NOT_REACHED(); |
6ea4776b JR |
5060 | } |
5061 | ||
6ea4776b JR |
5062 | return 0; |
5063 | } | |
5064 | ||
5065 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5066 | * buffer owned by the caller. */ | |
5067 | struct ofpbuf * | |
5068 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5069 | const struct ofputil_role_request *rr) |
6ea4776b | 5070 | { |
6ea4776b | 5071 | struct ofpbuf *buf; |
6ea4776b JR |
5072 | enum ofpraw raw; |
5073 | ||
f4f1ea7e | 5074 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5075 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5076 | struct ofp12_role_request *orr; |
6ea4776b | 5077 | |
f4f1ea7e BP |
5078 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5079 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5080 | |
147cc9d3 BP |
5081 | orr->role = htonl(rr->role); |
5082 | orr->generation_id = htonll(rr->have_generation_id | |
5083 | ? rr->generation_id | |
5084 | : UINT64_MAX); | |
f4f1ea7e BP |
5085 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5086 | struct nx_role_request *nrr; | |
5087 | ||
5088 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5089 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5090 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5091 | ||
5092 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5093 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5094 | nrr->role = htonl(rr->role - 1); | |
5095 | } else { | |
428b2edd | 5096 | OVS_NOT_REACHED(); |
6ea4776b | 5097 | } |
6ea4776b JR |
5098 | |
5099 | return buf; | |
5100 | } | |
5101 | \f | |
6751a4b4 BP |
5102 | /* Encodes "role status" message 'status' for sending in the given |
5103 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5104 | * otherwise a null pointer. */ | |
00467f73 AC |
5105 | struct ofpbuf * |
5106 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5107 | enum ofputil_protocol protocol) | |
5108 | { | |
00467f73 | 5109 | enum ofp_version version; |
00467f73 AC |
5110 | |
5111 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5112 | if (version >= OFP14_VERSION) { |
5113 | struct ofp14_role_status *rstatus; | |
5114 | struct ofpbuf *buf; | |
5115 | ||
5116 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5117 | 0); | |
5118 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5119 | rstatus->role = htonl(status->role); | |
5120 | rstatus->reason = status->reason; | |
5121 | rstatus->generation_id = htonll(status->generation_id); | |
5122 | ||
5123 | return buf; | |
5124 | } else { | |
5125 | return NULL; | |
5126 | } | |
00467f73 AC |
5127 | } |
5128 | ||
5129 | enum ofperr | |
5130 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5131 | struct ofputil_role_status *rs) | |
5132 | { | |
5133 | struct ofpbuf b; | |
5134 | enum ofpraw raw; | |
5135 | const struct ofp14_role_status *r; | |
5136 | ||
5137 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5138 | raw = ofpraw_pull_assert(&b); | |
5139 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5140 | ||
6fd6ed71 | 5141 | r = b.msg; |
00467f73 AC |
5142 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5143 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5144 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5145 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5146 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5147 | } | |
5148 | ||
5149 | rs->role = ntohl(r->role); | |
5150 | rs->generation_id = ntohll(r->generation_id); | |
5151 | rs->reason = r->reason; | |
5152 | ||
5153 | return 0; | |
5154 | } | |
5155 | ||
307975da SH |
5156 | /* Table stats. */ |
5157 | ||
3c1bb396 BP |
5158 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5159 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5160 | * that contains both kinds of fields. */ | |
5161 | static struct mf_bitmap | |
5162 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5163 | { | |
5164 | struct mf_bitmap wc = features->match; | |
5165 | bitmap_not(wc.bm, MFF_N_IDS); | |
5166 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5167 | return wc; | |
5168 | } | |
5169 | ||
5170 | struct ofp10_wc_map { | |
5171 | enum ofp10_flow_wildcards wc10; | |
5172 | enum mf_field_id mf; | |
5173 | }; | |
5174 | ||
5175 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5176 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5177 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5178 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5179 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5180 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5181 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5182 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5183 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5184 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5185 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5186 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5187 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5188 | }; | |
5189 | ||
5190 | static ovs_be32 | |
5191 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5192 | { | |
5193 | const struct ofp10_wc_map *p; | |
5194 | uint32_t wc10 = 0; | |
5195 | ||
5196 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5197 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5198 | wc10 |= p->wc10; | |
5199 | } | |
5200 | } | |
5201 | return htonl(wc10); | |
5202 | } | |
5203 | ||
5204 | static struct mf_bitmap | |
5205 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5206 | { | |
5207 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5208 | const struct ofp10_wc_map *p; | |
5209 | uint32_t wc10 = ntohl(wc10_); | |
5210 | ||
5211 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5212 | if (wc10 & p->wc10) { | |
5213 | bitmap_set1(fields.bm, p->mf); | |
5214 | } | |
5215 | } | |
5216 | return fields; | |
5217 | } | |
5218 | ||
307975da | 5219 | static void |
3c1bb396 BP |
5220 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5221 | const struct ofputil_table_features *features, | |
307975da SH |
5222 | struct ofpbuf *buf) |
5223 | { | |
3c1bb396 | 5224 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5225 | struct ofp10_table_stats *out; |
307975da | 5226 | |
3bdc692b | 5227 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5228 | out->table_id = features->table_id; |
5229 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5230 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5231 | out->max_entries = htonl(features->max_entries); | |
5232 | out->active_count = htonl(stats->active_count); | |
5233 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5234 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5235 | } | |
5236 | ||
5237 | struct ofp11_wc_map { | |
5238 | enum ofp11_flow_match_fields wc11; | |
5239 | enum mf_field_id mf; | |
5240 | }; | |
5241 | ||
5242 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5243 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5244 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5245 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5246 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5247 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5248 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5249 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5250 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5251 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5252 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5253 | /* I don't know what OFPFMF11_TYPE means. */ | |
5254 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5255 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5256 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5257 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5258 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5259 | }; | |
5260 | ||
5261 | static ovs_be32 | |
5262 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5263 | { | |
5264 | const struct ofp11_wc_map *p; | |
5265 | uint32_t wc11 = 0; | |
5266 | ||
5267 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5268 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5269 | wc11 |= p->wc11; | |
307975da SH |
5270 | } |
5271 | } | |
3c1bb396 | 5272 | return htonl(wc11); |
307975da SH |
5273 | } |
5274 | ||
3c1bb396 BP |
5275 | static struct mf_bitmap |
5276 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5277 | { | |
5278 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5279 | const struct ofp11_wc_map *p; | |
5280 | uint32_t wc11 = ntohl(wc11_); | |
5281 | ||
5282 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5283 | if (wc11 & p->wc11) { | |
5284 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5285 | } |
5286 | } | |
3c1bb396 | 5287 | return fields; |
307975da SH |
5288 | } |
5289 | ||
5290 | static void | |
3c1bb396 BP |
5291 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5292 | const struct ofputil_table_features *features, | |
307975da SH |
5293 | struct ofpbuf *buf) |
5294 | { | |
3c1bb396 | 5295 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5296 | struct ofp11_table_stats *out; |
5297 | ||
3bdc692b | 5298 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5299 | out->table_id = features->table_id; |
5300 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5301 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5302 | out->match = mf_bitmap_to_of11(&features->match); | |
5303 | out->instructions = ovsinst_bitmap_to_openflow( | |
5304 | features->nonmiss.instructions, OFP11_VERSION); | |
5305 | out->write_actions = ofpact_bitmap_to_openflow( | |
5306 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5307 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5308 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5309 | out->config = htonl(features->miss_config); | |
5310 | out->max_entries = htonl(features->max_entries); | |
5311 | out->active_count = htonl(stats->active_count); | |
5312 | out->lookup_count = htonll(stats->lookup_count); | |
5313 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5314 | } |
5315 | ||
6240624b | 5316 | static void |
3c1bb396 BP |
5317 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5318 | const struct ofputil_table_features *features, | |
6240624b BP |
5319 | struct ofpbuf *buf) |
5320 | { | |
08d1e234 | 5321 | struct ofp12_table_stats *out; |
6240624b | 5322 | |
08d1e234 | 5323 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5324 | out->table_id = features->table_id; |
5325 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
5326 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
5327 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
5328 | OFP12_VERSION); |
5329 | out->write_actions = ofpact_bitmap_to_openflow( | |
5330 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5331 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5332 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 5333 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 5334 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 5335 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
5336 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
5337 | out->metadata_match = features->metadata_match; | |
5338 | out->metadata_write = features->metadata_write; | |
5339 | out->instructions = ovsinst_bitmap_to_openflow( | |
5340 | features->nonmiss.instructions, OFP12_VERSION); | |
5341 | out->config = ofputil_table_miss_to_config(features->miss_config, | |
5342 | OFP12_VERSION); | |
5343 | out->max_entries = htonl(features->max_entries); | |
5344 | out->active_count = htonl(stats->active_count); | |
5345 | out->lookup_count = htonll(stats->lookup_count); | |
5346 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5347 | } |
5348 | ||
2e1ae200 | 5349 | static void |
3c1bb396 | 5350 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5351 | struct ofpbuf *buf) |
5352 | { | |
5353 | struct ofp13_table_stats *out; | |
5354 | ||
3c1bb396 BP |
5355 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5356 | out->table_id = stats->table_id; | |
5357 | out->active_count = htonl(stats->active_count); | |
5358 | out->lookup_count = htonll(stats->lookup_count); | |
5359 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5360 | } |
5361 | ||
307975da | 5362 | struct ofpbuf * |
3c1bb396 | 5363 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5364 | { |
3c1bb396 BP |
5365 | return ofpraw_alloc_stats_reply(request, 0); |
5366 | } | |
307975da | 5367 | |
3c1bb396 BP |
5368 | void |
5369 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5370 | const struct ofputil_table_stats *stats, | |
5371 | const struct ofputil_table_features *features) | |
5372 | { | |
6fd6ed71 | 5373 | struct ofp_header *oh = reply->header; |
307975da | 5374 | |
3c1bb396 | 5375 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5376 | |
3c1bb396 BP |
5377 | switch ((enum ofp_version) oh->version) { |
5378 | case OFP10_VERSION: | |
5379 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5380 | break; | |
307975da | 5381 | |
3c1bb396 BP |
5382 | case OFP11_VERSION: |
5383 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5384 | break; | |
307975da | 5385 | |
3c1bb396 BP |
5386 | case OFP12_VERSION: |
5387 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5388 | break; | |
2e1ae200 | 5389 | |
3c1bb396 BP |
5390 | case OFP13_VERSION: |
5391 | case OFP14_VERSION: | |
5392 | case OFP15_VERSION: | |
5393 | ofputil_put_ofp13_table_stats(stats, reply); | |
5394 | break; | |
5395 | ||
5396 | default: | |
5397 | OVS_NOT_REACHED(); | |
307975da | 5398 | } |
3c1bb396 | 5399 | } |
307975da | 5400 | |
3c1bb396 BP |
5401 | static int |
5402 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5403 | struct ofputil_table_stats *stats, | |
5404 | struct ofputil_table_features *features) | |
5405 | { | |
5406 | struct ofp10_table_stats *ots; | |
5407 | ||
5408 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5409 | if (!ots) { | |
5410 | return OFPERR_OFPBRC_BAD_LEN; | |
5411 | } | |
5412 | ||
5413 | features->table_id = ots->table_id; | |
5414 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5415 | features->max_entries = ntohl(ots->max_entries); | |
5416 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
5417 | ||
5418 | stats->table_id = ots->table_id; | |
5419 | stats->active_count = ntohl(ots->active_count); | |
5420 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
5421 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
5422 | ||
5423 | return 0; | |
5424 | } | |
5425 | ||
5426 | static int | |
5427 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
5428 | struct ofputil_table_stats *stats, | |
5429 | struct ofputil_table_features *features) | |
5430 | { | |
5431 | struct ofp11_table_stats *ots; | |
5432 | ||
5433 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5434 | if (!ots) { | |
5435 | return OFPERR_OFPBRC_BAD_LEN; | |
5436 | } | |
5437 | ||
5438 | features->table_id = ots->table_id; | |
5439 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5440 | features->max_entries = ntohl(ots->max_entries); | |
5441 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5442 | ots->instructions, OFP11_VERSION); | |
5443 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5444 | ots->write_actions, OFP11_VERSION); | |
5445 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5446 | ots->write_actions, OFP11_VERSION); | |
5447 | features->miss = features->nonmiss; | |
5448 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5449 | OFP11_VERSION); | |
5450 | features->match = mf_bitmap_from_of11(ots->match); | |
5451 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
5452 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5453 | ||
5454 | stats->table_id = ots->table_id; | |
5455 | stats->active_count = ntohl(ots->active_count); | |
5456 | stats->lookup_count = ntohll(ots->lookup_count); | |
5457 | stats->matched_count = ntohll(ots->matched_count); | |
5458 | ||
5459 | return 0; | |
5460 | } | |
5461 | ||
5462 | static int | |
5463 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
5464 | struct ofputil_table_stats *stats, | |
5465 | struct ofputil_table_features *features) | |
5466 | { | |
5467 | struct ofp12_table_stats *ots; | |
5468 | ||
5469 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5470 | if (!ots) { | |
5471 | return OFPERR_OFPBRC_BAD_LEN; | |
5472 | } | |
5473 | ||
5474 | features->table_id = ots->table_id; | |
5475 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5476 | features->metadata_match = ots->metadata_match; | |
5477 | features->metadata_write = ots->metadata_write; | |
5478 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5479 | OFP12_VERSION); | |
5480 | features->max_entries = ntohl(ots->max_entries); | |
5481 | ||
5482 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5483 | ots->instructions, OFP12_VERSION); | |
5484 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5485 | ots->write_actions, OFP12_VERSION); | |
5486 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5487 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 5488 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 5489 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 5490 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
5491 | ots->apply_setfields, OFP12_VERSION); |
5492 | features->miss = features->nonmiss; | |
5493 | ||
178742f9 BP |
5494 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
5495 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
5496 | OFP12_VERSION); | |
3c1bb396 BP |
5497 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
5498 | ||
5499 | stats->table_id = ots->table_id; | |
5500 | stats->active_count = ntohl(ots->active_count); | |
5501 | stats->lookup_count = ntohll(ots->lookup_count); | |
5502 | stats->matched_count = ntohll(ots->matched_count); | |
5503 | ||
5504 | return 0; | |
5505 | } | |
5506 | ||
5507 | static int | |
5508 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
5509 | struct ofputil_table_stats *stats, | |
5510 | struct ofputil_table_features *features) | |
5511 | { | |
5512 | struct ofp13_table_stats *ots; | |
5513 | ||
5514 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5515 | if (!ots) { | |
5516 | return OFPERR_OFPBRC_BAD_LEN; | |
5517 | } | |
5518 | ||
5519 | features->table_id = ots->table_id; | |
5520 | ||
5521 | stats->table_id = ots->table_id; | |
5522 | stats->active_count = ntohl(ots->active_count); | |
5523 | stats->lookup_count = ntohll(ots->lookup_count); | |
5524 | stats->matched_count = ntohll(ots->matched_count); | |
5525 | ||
5526 | return 0; | |
5527 | } | |
5528 | ||
5529 | int | |
5530 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
5531 | struct ofputil_table_stats *stats, | |
5532 | struct ofputil_table_features *features) | |
5533 | { | |
5534 | const struct ofp_header *oh; | |
5535 | ||
6fd6ed71 | 5536 | if (!msg->header) { |
3c1bb396 BP |
5537 | ofpraw_pull_assert(msg); |
5538 | } | |
6fd6ed71 | 5539 | oh = msg->header; |
3c1bb396 | 5540 | |
6fd6ed71 | 5541 | if (!msg->size) { |
3c1bb396 BP |
5542 | return EOF; |
5543 | } | |
5544 | ||
5545 | memset(stats, 0, sizeof *stats); | |
5546 | memset(features, 0, sizeof *features); | |
5547 | ||
5548 | switch ((enum ofp_version) oh->version) { | |
5549 | case OFP10_VERSION: | |
5550 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
5551 | ||
5552 | case OFP11_VERSION: | |
5553 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
5554 | ||
5555 | case OFP12_VERSION: | |
5556 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
5557 | ||
5558 | case OFP13_VERSION: | |
5559 | case OFP14_VERSION: | |
5560 | case OFP15_VERSION: | |
5561 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
5562 | ||
5563 | default: | |
5564 | OVS_NOT_REACHED(); | |
5565 | } | |
307975da SH |
5566 | } |
5567 | \f | |
2b07c8b1 BP |
5568 | /* ofputil_flow_monitor_request */ |
5569 | ||
5570 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
5571 | * ofputil_flow_monitor_request in 'rq'. | |
5572 | * | |
5573 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
5574 | * message. Calling this function multiple times for a single 'msg' iterates | |
5575 | * through the requests. The caller must initially leave 'msg''s layer | |
5576 | * pointers null and not modify them between calls. | |
5577 | * | |
5578 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
5579 | * otherwise an OFPERR_* value. */ | |
5580 | int | |
5581 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
5582 | struct ofpbuf *msg) | |
5583 | { | |
5584 | struct nx_flow_monitor_request *nfmr; | |
5585 | uint16_t flags; | |
5586 | ||
6fd6ed71 | 5587 | if (!msg->header) { |
982697a4 | 5588 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5589 | } |
5590 | ||
6fd6ed71 | 5591 | if (!msg->size) { |
2b07c8b1 BP |
5592 | return EOF; |
5593 | } | |
5594 | ||
5595 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
5596 | if (!nfmr) { | |
437d0d22 | 5597 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 5598 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
5599 | return OFPERR_OFPBRC_BAD_LEN; |
5600 | } | |
5601 | ||
5602 | flags = ntohs(nfmr->flags); | |
5603 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
5604 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
5605 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
5606 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
5607 | flags); | |
04f9f286 | 5608 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
5609 | } |
5610 | ||
5611 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
5612 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5613 | } | |
5614 | ||
5615 | rq->id = ntohl(nfmr->id); | |
5616 | rq->flags = flags; | |
4e022ec0 | 5617 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
5618 | rq->table_id = nfmr->table_id; |
5619 | ||
81a76618 | 5620 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
5621 | } |
5622 | ||
5623 | void | |
5624 | ofputil_append_flow_monitor_request( | |
5625 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
5626 | { | |
5627 | struct nx_flow_monitor_request *nfmr; | |
5628 | size_t start_ofs; | |
5629 | int match_len; | |
5630 | ||
6fd6ed71 | 5631 | if (!msg->size) { |
982697a4 | 5632 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
5633 | } |
5634 | ||
6fd6ed71 | 5635 | start_ofs = msg->size; |
2b07c8b1 | 5636 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 5637 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
5638 | |
5639 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
5640 | nfmr->id = htonl(rq->id); | |
5641 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 5642 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
5643 | nfmr->match_len = htons(match_len); |
5644 | nfmr->table_id = rq->table_id; | |
5645 | } | |
5646 | ||
5647 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
5648 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 5649 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
5650 | * |
5651 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
5652 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
5653 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
5654 | * will point into the 'ofpacts' buffer. | |
5655 | * | |
5656 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
5657 | * this function multiple times for a single 'msg' iterates through the | |
5658 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
5659 | * not modify them between calls. | |
5660 | * | |
5661 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
5662 | * otherwise an OFPERR_* value. */ | |
5663 | int | |
5664 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
5665 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
5666 | { | |
5667 | struct nx_flow_update_header *nfuh; | |
5668 | unsigned int length; | |
e3f8f887 | 5669 | struct ofp_header *oh; |
2b07c8b1 | 5670 | |
6fd6ed71 | 5671 | if (!msg->header) { |
982697a4 | 5672 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5673 | } |
5674 | ||
6fd6ed71 | 5675 | if (!msg->size) { |
2b07c8b1 BP |
5676 | return EOF; |
5677 | } | |
5678 | ||
6fd6ed71 | 5679 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
5680 | goto bad_len; |
5681 | } | |
5682 | ||
6fd6ed71 | 5683 | oh = msg->header; |
e3f8f887 | 5684 | |
6fd6ed71 | 5685 | nfuh = msg->data; |
2b07c8b1 BP |
5686 | update->event = ntohs(nfuh->event); |
5687 | length = ntohs(nfuh->length); | |
6fd6ed71 | 5688 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
5689 | goto bad_len; |
5690 | } | |
5691 | ||
5692 | if (update->event == NXFME_ABBREV) { | |
5693 | struct nx_flow_update_abbrev *nfua; | |
5694 | ||
5695 | if (length != sizeof *nfua) { | |
5696 | goto bad_len; | |
5697 | } | |
5698 | ||
5699 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
5700 | update->xid = nfua->xid; | |
5701 | return 0; | |
5702 | } else if (update->event == NXFME_ADDED | |
5703 | || update->event == NXFME_DELETED | |
5704 | || update->event == NXFME_MODIFIED) { | |
5705 | struct nx_flow_update_full *nfuf; | |
5706 | unsigned int actions_len; | |
5707 | unsigned int match_len; | |
5708 | enum ofperr error; | |
5709 | ||
5710 | if (length < sizeof *nfuf) { | |
5711 | goto bad_len; | |
5712 | } | |
5713 | ||
5714 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
5715 | match_len = ntohs(nfuf->match_len); | |
5716 | if (sizeof *nfuf + match_len > length) { | |
5717 | goto bad_len; | |
5718 | } | |
5719 | ||
5720 | update->reason = ntohs(nfuf->reason); | |
5721 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
5722 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
5723 | update->table_id = nfuf->table_id; | |
5724 | update->cookie = nfuf->cookie; | |
81a76618 | 5725 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 5726 | |
81a76618 | 5727 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
5728 | if (error) { |
5729 | return error; | |
5730 | } | |
5731 | ||
5732 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
5733 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5734 | ofpacts); | |
2b07c8b1 BP |
5735 | if (error) { |
5736 | return error; | |
5737 | } | |
5738 | ||
6fd6ed71 PS |
5739 | update->ofpacts = ofpacts->data; |
5740 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
5741 | return 0; |
5742 | } else { | |
5743 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
5744 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
5745 | ntohs(nfuh->event)); | |
15549878 | 5746 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
5747 | } |
5748 | ||
5749 | bad_len: | |
437d0d22 | 5750 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 5751 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
5752 | return OFPERR_OFPBRC_BAD_LEN; |
5753 | } | |
5754 | ||
5755 | uint32_t | |
5756 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
5757 | { | |
982697a4 BP |
5758 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
5759 | ||
5760 | return ntohl(cancel->id); | |
2b07c8b1 | 5761 | } |
9e1fd49b | 5762 | |
2b07c8b1 BP |
5763 | struct ofpbuf * |
5764 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
5765 | { | |
5766 | struct nx_flow_monitor_cancel *nfmc; | |
5767 | struct ofpbuf *msg; | |
5768 | ||
982697a4 BP |
5769 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
5770 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
5771 | nfmc->id = htonl(id); |
5772 | return msg; | |
5773 | } | |
5774 | ||
5775 | void | |
ca6ba700 | 5776 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
5777 | { |
5778 | struct ofpbuf *msg; | |
5779 | ||
982697a4 BP |
5780 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
5781 | htonl(0), 1024); | |
2b07c8b1 BP |
5782 | |
5783 | list_init(replies); | |
5784 | list_push_back(replies, &msg->list_node); | |
5785 | } | |
5786 | ||
5787 | void | |
5788 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 5789 | struct ovs_list *replies) |
2b07c8b1 | 5790 | { |
e28ac5cf | 5791 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
5792 | struct nx_flow_update_header *nfuh; |
5793 | struct ofpbuf *msg; | |
5794 | size_t start_ofs; | |
5795 | ||
5796 | msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 5797 | start_ofs = msg->size; |
2b07c8b1 BP |
5798 | |
5799 | if (update->event == NXFME_ABBREV) { | |
5800 | struct nx_flow_update_abbrev *nfua; | |
5801 | ||
5802 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
5803 | nfua->xid = update->xid; | |
5804 | } else { | |
5805 | struct nx_flow_update_full *nfuf; | |
5806 | int match_len; | |
5807 | ||
5808 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 5809 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
5810 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
5811 | version); | |
2b07c8b1 BP |
5812 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
5813 | nfuf->reason = htons(update->reason); | |
81a76618 | 5814 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
5815 | nfuf->idle_timeout = htons(update->idle_timeout); |
5816 | nfuf->hard_timeout = htons(update->hard_timeout); | |
5817 | nfuf->match_len = htons(match_len); | |
5818 | nfuf->table_id = update->table_id; | |
5819 | nfuf->cookie = update->cookie; | |
5820 | } | |
5821 | ||
5822 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 5823 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
5824 | nfuh->event = htons(update->event); |
5825 | ||
982697a4 | 5826 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
5827 | } |
5828 | \f | |
c6a93eb7 | 5829 | struct ofpbuf * |
de0f3156 SH |
5830 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
5831 | enum ofputil_protocol protocol) | |
c6a93eb7 | 5832 | { |
de0f3156 | 5833 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
5834 | struct ofpbuf *msg; |
5835 | size_t size; | |
5836 | ||
982697a4 | 5837 | size = po->ofpacts_len; |
c6a93eb7 BP |
5838 | if (po->buffer_id == UINT32_MAX) { |
5839 | size += po->packet_len; | |
5840 | } | |
5841 | ||
de0f3156 SH |
5842 | switch (ofp_version) { |
5843 | case OFP10_VERSION: { | |
31a9e63f | 5844 | struct ofp10_packet_out *opo; |
de0f3156 SH |
5845 | size_t actions_ofs; |
5846 | ||
5847 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
5848 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 5849 | actions_ofs = msg->size; |
e3f8f887 JR |
5850 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5851 | ofp_version); | |
de0f3156 | 5852 | |
6fd6ed71 | 5853 | opo = msg->msg; |
de0f3156 | 5854 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 5855 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 5856 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
5857 | break; |
5858 | } | |
f25d0cf3 | 5859 | |
de0f3156 | 5860 | case OFP11_VERSION: |
2e1ae200 | 5861 | case OFP12_VERSION: |
c37c0382 | 5862 | case OFP13_VERSION: |
42dccab5 BP |
5863 | case OFP14_VERSION: |
5864 | case OFP15_VERSION: { | |
7c1b1a0d SH |
5865 | struct ofp11_packet_out *opo; |
5866 | size_t len; | |
5867 | ||
5868 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
5869 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
5870 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5871 | ofp_version); | |
6fd6ed71 | 5872 | opo = msg->msg; |
7c1b1a0d SH |
5873 | opo->buffer_id = htonl(po->buffer_id); |
5874 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
5875 | opo->actions_len = htons(len); | |
5876 | break; | |
5877 | } | |
5878 | ||
de0f3156 | 5879 | default: |
428b2edd | 5880 | OVS_NOT_REACHED(); |
de0f3156 | 5881 | } |
f25d0cf3 | 5882 | |
c6a93eb7 BP |
5883 | if (po->buffer_id == UINT32_MAX) { |
5884 | ofpbuf_put(msg, po->packet, po->packet_len); | |
5885 | } | |
f25d0cf3 | 5886 | |
982697a4 | 5887 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
5888 | |
5889 | return msg; | |
5890 | } | |
d1e2cf21 | 5891 | \f |
fa37b408 BP |
5892 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
5893 | struct ofpbuf * | |
1a126c0c | 5894 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 5895 | { |
1a126c0c | 5896 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 5897 | htonl(0), 0); |
fa37b408 BP |
5898 | } |
5899 | ||
5900 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
5901 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
5902 | struct ofpbuf * | |
5903 | make_echo_reply(const struct ofp_header *rq) | |
5904 | { | |
982697a4 BP |
5905 | struct ofpbuf rq_buf; |
5906 | struct ofpbuf *reply; | |
5907 | ||
5908 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
5909 | ofpraw_pull_assert(&rq_buf); | |
5910 | ||
6fd6ed71 PS |
5911 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); |
5912 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
982697a4 | 5913 | return reply; |
fa37b408 BP |
5914 | } |
5915 | ||
efb80167 | 5916 | struct ofpbuf * |
a0ae0b6e | 5917 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 5918 | { |
a0ae0b6e SH |
5919 | enum ofpraw type; |
5920 | ||
5921 | switch (ofp_version) { | |
42dccab5 | 5922 | case OFP15_VERSION: |
c37c0382 | 5923 | case OFP14_VERSION: |
2e1ae200 | 5924 | case OFP13_VERSION: |
a0ae0b6e SH |
5925 | case OFP12_VERSION: |
5926 | case OFP11_VERSION: | |
5927 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
5928 | break; | |
5929 | ||
5930 | case OFP10_VERSION: | |
5931 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
5932 | break; | |
5933 | ||
5934 | default: | |
428b2edd | 5935 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
5936 | } |
5937 | ||
5938 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
5939 | } |
5940 | ||
7257b535 BP |
5941 | const char * |
5942 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
5943 | { | |
5944 | switch (flags & OFPC_FRAG_MASK) { | |
5945 | case OFPC_FRAG_NORMAL: return "normal"; | |
5946 | case OFPC_FRAG_DROP: return "drop"; | |
5947 | case OFPC_FRAG_REASM: return "reassemble"; | |
5948 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
5949 | } | |
5950 | ||
428b2edd | 5951 | OVS_NOT_REACHED(); |
7257b535 BP |
5952 | } |
5953 | ||
5954 | bool | |
5955 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
5956 | { | |
5957 | if (!strcasecmp(s, "normal")) { | |
5958 | *flags = OFPC_FRAG_NORMAL; | |
5959 | } else if (!strcasecmp(s, "drop")) { | |
5960 | *flags = OFPC_FRAG_DROP; | |
5961 | } else if (!strcasecmp(s, "reassemble")) { | |
5962 | *flags = OFPC_FRAG_REASM; | |
5963 | } else if (!strcasecmp(s, "nx-match")) { | |
5964 | *flags = OFPC_FRAG_NX_MATCH; | |
5965 | } else { | |
5966 | return false; | |
5967 | } | |
5968 | return true; | |
5969 | } | |
5970 | ||
7b7503ea BP |
5971 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
5972 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
5973 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 5974 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
5975 | * |
5976 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
5977 | enum ofperr | |
4e022ec0 | 5978 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
5979 | { |
5980 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
5981 | ||
4e022ec0 AW |
5982 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
5983 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 5984 | return 0; |
4e022ec0 AW |
5985 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
5986 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
5987 | return 0; |
5988 | } else { | |
bc146369 | 5989 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
5990 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
5991 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
5992 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
5993 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
5994 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
5995 | } | |
5996 | } | |
5997 | ||
5998 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
5999 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6000 | * | |
6001 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6002 | ovs_be32 | |
4e022ec0 | 6003 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6004 | { |
4e022ec0 AW |
6005 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6006 | ? ofp_to_u16(ofp10_port) | |
6007 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6008 | } |
6009 | ||
39dc9082 BP |
6010 | #define OFPUTIL_NAMED_PORTS \ |
6011 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6012 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6013 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6014 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6015 | OFPUTIL_NAMED_PORT(ALL) \ | |
6016 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6017 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6018 | OFPUTIL_NAMED_PORT(ANY) \ |
6019 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6020 | |
6021 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6022 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6023 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6024 | OFPUTIL_NAMED_PORT(NONE) |
6025 | ||
8010100b BP |
6026 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6027 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6028 | * (e.g. "LOCAL"). | |
c6100d92 | 6029 | * |
8010100b BP |
6030 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6031 | * or name. The caller should issue an error message in this case, because | |
6032 | * this function usually does not. (This gives the caller an opportunity to | |
6033 | * look up the port name another way, e.g. by contacting the switch and listing | |
6034 | * the names of all its ports). | |
c6100d92 BP |
6035 | * |
6036 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6037 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6038 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6039 | bool |
4e022ec0 | 6040 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6041 | { |
5b23ff7e | 6042 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6043 | |
5b23ff7e JR |
6044 | if (*s == '-') { |
6045 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6046 | return false; | |
6047 | } | |
8010100b | 6048 | *portp = 0; |
c6100d92 | 6049 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6050 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6051 | /* Pass. */ | |
6052 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6053 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6054 | "be translated to %u when talking to an OF1.1 or " | |
6055 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6056 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6057 | char name[OFP_MAX_PORT_NAME_LEN]; |
6058 | ||
6059 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6060 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6061 | "for compatibility with OpenFlow 1.1 and later", | |
6062 | name, port32); | |
4e022ec0 | 6063 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6064 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6065 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6066 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6067 | return false; |
c6100d92 | 6068 | } else { |
4e022ec0 | 6069 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6070 | } |
4e022ec0 AW |
6071 | |
6072 | *portp = u16_to_ofp(port32); | |
6073 | return true; | |
c6100d92 BP |
6074 | } else { |
6075 | struct pair { | |
6076 | const char *name; | |
4e022ec0 | 6077 | ofp_port_t value; |
c6100d92 BP |
6078 | }; |
6079 | static const struct pair pairs[] = { | |
39dc9082 | 6080 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6081 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6082 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6083 | }; |
6084 | const struct pair *p; | |
39dc9082 | 6085 | |
c6100d92 BP |
6086 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6087 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6088 | *portp = p->value; |
6089 | return true; | |
c6100d92 | 6090 | } |
39dc9082 | 6091 | } |
8010100b | 6092 | return false; |
39dc9082 | 6093 | } |
39dc9082 BP |
6094 | } |
6095 | ||
6096 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6097 | * Most ports' string representation is just the port number, but for special | |
6098 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6099 | void | |
4e022ec0 | 6100 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6101 | { |
28b11432 BP |
6102 | char name[OFP_MAX_PORT_NAME_LEN]; |
6103 | ||
6104 | ofputil_port_to_string(port, name, sizeof name); | |
6105 | ds_put_cstr(s, name); | |
6106 | } | |
39dc9082 | 6107 | |
28b11432 BP |
6108 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6109 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6110 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6111 | * by name, e.g. "LOCAL". */ | |
6112 | void | |
6113 | ofputil_port_to_string(ofp_port_t port, | |
6114 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6115 | { | |
39dc9082 | 6116 | switch (port) { |
28b11432 BP |
6117 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6118 | case OFPP_##NAME: \ | |
6119 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6120 | break; | |
39dc9082 BP |
6121 | OFPUTIL_NAMED_PORTS |
6122 | #undef OFPUTIL_NAMED_PORT | |
6123 | ||
6124 | default: | |
28b11432 BP |
6125 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6126 | break; | |
39dc9082 | 6127 | } |
39dc9082 BP |
6128 | } |
6129 | ||
7395c052 NZ |
6130 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6131 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6132 | * (either "ANY" or "ALL"). | |
6133 | * | |
6134 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6135 | * name. */ | |
6136 | bool | |
6137 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6138 | { | |
6139 | if (!strcasecmp(s, "any")) { | |
6140 | *group_idp = OFPG11_ANY; | |
6141 | } else if (!strcasecmp(s, "all")) { | |
6142 | *group_idp = OFPG11_ALL; | |
6143 | } else if (!str_to_uint(s, 10, group_idp)) { | |
6144 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6145 | "32-bit nonnegative integers or the keywords ANY or " | |
6146 | "ALL.)", s); | |
6147 | return false; | |
6148 | } | |
6149 | ||
6150 | return true; | |
6151 | } | |
6152 | ||
6153 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6154 | * Most groups' string representation is just the number, but for special | |
6155 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
6156 | void | |
6157 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6158 | { | |
6159 | char name[MAX_GROUP_NAME_LEN]; | |
6160 | ||
6161 | ofputil_group_to_string(group_id, name, sizeof name); | |
6162 | ds_put_cstr(s, name); | |
6163 | } | |
6164 | ||
6165 | ||
6166 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6167 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
6168 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
6169 | * by name, e.g. "ALL". */ | |
6170 | void | |
6171 | ofputil_group_to_string(uint32_t group_id, | |
6172 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6173 | { | |
6174 | switch (group_id) { | |
6175 | case OFPG11_ALL: | |
6176 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
6177 | break; | |
6178 | ||
6179 | case OFPG11_ANY: | |
6180 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
6181 | break; | |
6182 | ||
6183 | default: | |
6184 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6185 | break; | |
6186 | } | |
6187 | } | |
6188 | ||
2be393ed JP |
6189 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6190 | * 'ofp_version', tries to pull the first element from the array. If | |
6191 | * successful, initializes '*pp' with an abstract representation of the | |
6192 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6193 | * On an error, returns a positive OFPERR_* value. */ | |
6194 | int | |
2e3fa633 | 6195 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6196 | struct ofputil_phy_port *pp) |
6197 | { | |
8c3cc785 BP |
6198 | memset(pp, 0, sizeof *pp); |
6199 | ||
2e3fa633 SH |
6200 | switch (ofp_version) { |
6201 | case OFP10_VERSION: { | |
2be393ed JP |
6202 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6203 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6204 | } |
6205 | case OFP11_VERSION: | |
2e1ae200 JR |
6206 | case OFP12_VERSION: |
6207 | case OFP13_VERSION: { | |
2be393ed JP |
6208 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6209 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6210 | } | |
c37c0382 | 6211 | case OFP14_VERSION: |
42dccab5 | 6212 | case OFP15_VERSION: |
6fd6ed71 | 6213 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6214 | default: |
428b2edd | 6215 | OVS_NOT_REACHED(); |
2e3fa633 | 6216 | } |
2be393ed JP |
6217 | } |
6218 | ||
3cbd9931 | 6219 | static void |
81a76618 | 6220 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6221 | { |
6222 | enum { | |
6223 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6224 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6225 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6226 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6227 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6228 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6229 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6230 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6231 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6232 | } may_match; |
6233 | ||
6234 | struct flow_wildcards wc; | |
6235 | ||
6236 | /* Figure out what fields may be matched. */ | |
81a76618 | 6237 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6238 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6239 | if (match->flow.nw_proto == IPPROTO_TCP || |
6240 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6241 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6242 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6243 | may_match |= MAY_TP_ADDR; |
6244 | } | |
81a76618 | 6245 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6246 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6247 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6248 | match->flow.nw_proto == IPPROTO_UDP || |
6249 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6250 | may_match |= MAY_TP_ADDR; |
81a76618 | 6251 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6252 | may_match |= MAY_TP_ADDR; |
81a76618 | 6253 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6254 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6255 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6256 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6257 | } | |
6258 | } | |
8087f5ff MM |
6259 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6260 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6261 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6262 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6263 | may_match = MAY_MPLS; | |
1c0b7503 | 6264 | } else { |
b459a924 BP |
6265 | may_match = 0; |
6266 | } | |
6267 | ||
6268 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6269 | wc = match->wc; |
b459a924 | 6270 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6271 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6272 | } |
6273 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6274 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6275 | } |
6276 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6277 | wc.masks.nw_proto = 0; |
b459a924 | 6278 | } |
9e44d715 | 6279 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6280 | wc.masks.nw_tos = 0; |
6281 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6282 | } |
6283 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 6284 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
6285 | } |
6286 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 6287 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 6288 | } |
d78477ec | 6289 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6290 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6291 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6292 | } |
6293 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6294 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6295 | } |
b02475c5 | 6296 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6297 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6298 | } |
b459a924 BP |
6299 | |
6300 | /* Log any changes. */ | |
81a76618 | 6301 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6302 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6303 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6304 | |
81a76618 BP |
6305 | match->wc = wc; |
6306 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6307 | |
6308 | if (log) { | |
81a76618 | 6309 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6310 | VLOG_INFO("normalization changed ofp_match, details:"); |
6311 | VLOG_INFO(" pre: %s", pre); | |
6312 | VLOG_INFO("post: %s", post); | |
6313 | free(pre); | |
6314 | free(post); | |
6315 | } | |
fa37b408 | 6316 | } |
3f09c339 | 6317 | } |
26c112c2 | 6318 | |
81a76618 | 6319 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6320 | * |
6321 | * 1. If the type of level N is known, then only the valid fields for that | |
6322 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6323 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6324 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6325 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6326 | * IPv4 flow. |
6327 | * | |
6328 | * 2. If the type of level N is not known (or not understood by Open | |
6329 | * vSwitch), then no fields at all for that level may be specified. For | |
6330 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6331 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6332 | * SCTP flow. |
6333 | * | |
81a76618 | 6334 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6335 | * message. */ |
6336 | void | |
81a76618 | 6337 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6338 | { |
81a76618 | 6339 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6340 | } |
6341 | ||
81a76618 BP |
6342 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6343 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6344 | * sense for use on flows received from elsewhere (so that a bug in the program |
6345 | * that sent them can be reported and corrected). */ | |
6346 | void | |
81a76618 | 6347 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6348 | { |
81a76618 | 6349 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6350 | } |
6351 | ||
0ff22822 BP |
6352 | /* Parses a key or a key-value pair from '*stringp'. |
6353 | * | |
6354 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6355 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6356 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6357 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6358 | * terminators. Returns true. | |
6359 | * | |
6360 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6361 | * NULL and returns false. */ | |
6362 | bool | |
6363 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6364 | { | |
6365 | char *pos, *key, *value; | |
6366 | size_t key_len; | |
6367 | ||
6368 | pos = *stringp; | |
6369 | pos += strspn(pos, ", \t\r\n"); | |
6370 | if (*pos == '\0') { | |
6371 | *keyp = *valuep = NULL; | |
6372 | return false; | |
6373 | } | |
6374 | ||
6375 | key = pos; | |
6376 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6377 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6378 | /* The value can be separated by a colon. */ | |
6379 | size_t value_len; | |
6380 | ||
6381 | value = key + key_len + 1; | |
6382 | value_len = strcspn(value, ", \t\r\n"); | |
6383 | pos = value + value_len + (value[value_len] != '\0'); | |
6384 | value[value_len] = '\0'; | |
6385 | } else if (key[key_len] == '(') { | |
6386 | /* The value can be surrounded by balanced parentheses. The outermost | |
6387 | * set of parentheses is removed. */ | |
6388 | int level = 1; | |
6389 | size_t value_len; | |
6390 | ||
6391 | value = key + key_len + 1; | |
6392 | for (value_len = 0; level > 0; value_len++) { | |
6393 | switch (value[value_len]) { | |
6394 | case '\0': | |
33cadc50 BP |
6395 | level = 0; |
6396 | break; | |
0ff22822 BP |
6397 | |
6398 | case '(': | |
6399 | level++; | |
6400 | break; | |
6401 | ||
6402 | case ')': | |
6403 | level--; | |
6404 | break; | |
6405 | } | |
6406 | } | |
6407 | value[value_len - 1] = '\0'; | |
6408 | pos = value + value_len; | |
6409 | } else { | |
6410 | /* There might be no value at all. */ | |
6411 | value = key + key_len; /* Will become the empty string below. */ | |
6412 | pos = key + key_len + (key[key_len] != '\0'); | |
6413 | } | |
6414 | key[key_len] = '\0'; | |
6415 | ||
6416 | *stringp = pos; | |
6417 | *keyp = key; | |
6418 | *valuep = value; | |
6419 | return true; | |
6420 | } | |
f8e4867e SH |
6421 | |
6422 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 6423 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
6424 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
6425 | struct ofpbuf * | |
4e022ec0 | 6426 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
6427 | { |
6428 | struct ofpbuf *request; | |
6429 | ||
6430 | switch (ofp_version) { | |
6431 | case OFP10_VERSION: { | |
6432 | struct ofp10_port_stats_request *req; | |
6433 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
6434 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 6435 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
6436 | break; |
6437 | } | |
6438 | case OFP11_VERSION: | |
2e1ae200 | 6439 | case OFP12_VERSION: |
c37c0382 | 6440 | case OFP13_VERSION: |
42dccab5 BP |
6441 | case OFP14_VERSION: |
6442 | case OFP15_VERSION: { | |
f8e4867e SH |
6443 | struct ofp11_port_stats_request *req; |
6444 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
6445 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6446 | req->port_no = ofputil_port_to_ofp11(port); | |
6447 | break; | |
6448 | } | |
6449 | default: | |
428b2edd | 6450 | OVS_NOT_REACHED(); |
f8e4867e SH |
6451 | } |
6452 | ||
6453 | return request; | |
6454 | } | |
6455 | ||
6456 | static void | |
6457 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
6458 | struct ofp10_port_stats *ps10) | |
6459 | { | |
4e022ec0 | 6460 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
6461 | memset(ps10->pad, 0, sizeof ps10->pad); |
6462 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
6463 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
6464 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
6465 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
6466 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
6467 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
6468 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
6469 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
6470 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
6471 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
6472 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
6473 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
6474 | } | |
6475 | ||
6476 | static void | |
6477 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
6478 | struct ofp11_port_stats *ps11) | |
6479 | { | |
6480 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6481 | memset(ps11->pad, 0, sizeof ps11->pad); | |
6482 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
6483 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
6484 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
6485 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
6486 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
6487 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
6488 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
6489 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
6490 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6491 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6492 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6493 | ps11->collisions = htonll(ops->stats.collisions); | |
6494 | } | |
6495 | ||
2e1ae200 JR |
6496 | static void |
6497 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
6498 | struct ofp13_port_stats *ps13) | |
6499 | { | |
6500 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
6501 | ps13->duration_sec = htonl(ops->duration_sec); |
6502 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
6503 | } |
6504 | ||
5469537b BP |
6505 | static void |
6506 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 6507 | struct ovs_list *replies) |
5469537b BP |
6508 | { |
6509 | struct ofp14_port_stats_prop_ethernet *eth; | |
6510 | struct ofp14_port_stats *ps14; | |
6511 | struct ofpbuf *reply; | |
6512 | ||
6513 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
6514 | ||
6515 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
6516 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
6517 | memset(ps14->pad, 0, sizeof ps14->pad); | |
6518 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6519 | ps14->duration_sec = htonl(ops->duration_sec); | |
6520 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
6521 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
6522 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
6523 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
6524 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
6525 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
6526 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
6527 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
6528 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
6529 | ||
6530 | eth = ofpbuf_put_uninit(reply, sizeof *eth); | |
6531 | eth->type = htons(OFPPSPT14_ETHERNET); | |
6532 | eth->length = htons(sizeof *eth); | |
6533 | memset(eth->pad, 0, sizeof eth->pad); | |
6534 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6535 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6536 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6537 | eth->collisions = htonll(ops->stats.collisions); | |
6538 | } | |
2e1ae200 | 6539 | |
ad4c35fe | 6540 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 6541 | void |
ca6ba700 | 6542 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
6543 | const struct ofputil_port_stats *ops) |
6544 | { | |
e28ac5cf | 6545 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
6546 | case OFP13_VERSION: { |
6547 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6548 | ofputil_port_stats_to_ofp13(ops, reply); | |
6549 | break; | |
6550 | } | |
f8e4867e SH |
6551 | case OFP12_VERSION: |
6552 | case OFP11_VERSION: { | |
6553 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6554 | ofputil_port_stats_to_ofp11(ops, reply); | |
6555 | break; | |
6556 | } | |
6557 | ||
6558 | case OFP10_VERSION: { | |
6559 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6560 | ofputil_port_stats_to_ofp10(ops, reply); | |
6561 | break; | |
6562 | } | |
6563 | ||
c37c0382 | 6564 | case OFP14_VERSION: |
42dccab5 | 6565 | case OFP15_VERSION: |
5469537b | 6566 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
6567 | break; |
6568 | ||
f8e4867e | 6569 | default: |
428b2edd | 6570 | OVS_NOT_REACHED(); |
f8e4867e SH |
6571 | } |
6572 | } | |
6573 | ||
6574 | static enum ofperr | |
6575 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
6576 | const struct ofp10_port_stats *ps10) | |
6577 | { | |
6578 | memset(ops, 0, sizeof *ops); | |
6579 | ||
4e022ec0 | 6580 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
6581 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
6582 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
6583 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
6584 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
6585 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
6586 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
6587 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
6588 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
6589 | ops->stats.rx_frame_errors = | |
6590 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
6591 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
6592 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
6593 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 6594 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6595 | |
6596 | return 0; | |
6597 | } | |
6598 | ||
6599 | static enum ofperr | |
6600 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
6601 | const struct ofp11_port_stats *ps11) | |
6602 | { | |
6603 | enum ofperr error; | |
6604 | ||
6605 | memset(ops, 0, sizeof *ops); | |
6606 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
6607 | if (error) { | |
6608 | return error; | |
6609 | } | |
6610 | ||
6611 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
6612 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
6613 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
6614 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
6615 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
6616 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
6617 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
6618 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
6619 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
6620 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
6621 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
6622 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 6623 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6624 | |
6625 | return 0; | |
6626 | } | |
6627 | ||
2e1ae200 JR |
6628 | static enum ofperr |
6629 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
6630 | const struct ofp13_port_stats *ps13) | |
6631 | { | |
65e0be10 | 6632 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 6633 | if (!error) { |
65e0be10 BP |
6634 | ops->duration_sec = ntohl(ps13->duration_sec); |
6635 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 6636 | } |
2e1ae200 JR |
6637 | return error; |
6638 | } | |
6639 | ||
5469537b BP |
6640 | static enum ofperr |
6641 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
6642 | struct ofputil_port_stats *ops) | |
be0c30df | 6643 | { |
6fd6ed71 | 6644 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 6645 | |
6fd6ed71 | 6646 | if (payload->size != sizeof *eth) { |
5469537b BP |
6647 | return OFPERR_OFPBPC_BAD_LEN; |
6648 | } | |
6649 | ||
6650 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
6651 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
6652 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
6653 | ops->stats.collisions = ntohll(eth->collisions); | |
6654 | ||
6655 | return 0; | |
6656 | } | |
6657 | ||
6658 | static enum ofperr | |
6659 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
6660 | struct ofpbuf *msg) | |
6661 | { | |
6662 | const struct ofp14_port_stats *ps14; | |
6663 | struct ofpbuf properties; | |
6664 | enum ofperr error; | |
6665 | size_t len; | |
6666 | ||
6667 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
6668 | if (!ps14) { | |
6669 | return OFPERR_OFPBRC_BAD_LEN; | |
6670 | } | |
6671 | ||
6672 | len = ntohs(ps14->length); | |
6fd6ed71 | 6673 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 6674 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 6675 | } |
5469537b BP |
6676 | len -= sizeof *ps14; |
6677 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
6678 | ||
6679 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
6680 | if (error) { | |
6681 | return error; | |
6682 | } | |
6683 | ||
6684 | ops->duration_sec = ntohl(ps14->duration_sec); | |
6685 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
6686 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
6687 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
6688 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
6689 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
6690 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
6691 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
6692 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
6693 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
6694 | ops->stats.rx_frame_errors = UINT64_MAX; | |
6695 | ops->stats.rx_over_errors = UINT64_MAX; | |
6696 | ops->stats.rx_crc_errors = UINT64_MAX; | |
6697 | ops->stats.collisions = UINT64_MAX; | |
6698 | ||
6fd6ed71 | 6699 | while (properties.size > 0) { |
5469537b BP |
6700 | struct ofpbuf payload; |
6701 | enum ofperr error; | |
6702 | uint16_t type; | |
6703 | ||
6704 | error = ofputil_pull_property(&properties, &payload, &type); | |
6705 | if (error) { | |
6706 | return error; | |
6707 | } | |
6708 | ||
6709 | switch (type) { | |
6710 | case OFPPSPT14_ETHERNET: | |
6711 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
6712 | break; | |
6713 | ||
6714 | default: | |
6715 | log_property(true, "unknown port stats property %"PRIu16, type); | |
6716 | error = 0; | |
6717 | break; | |
6718 | } | |
6719 | ||
6720 | if (error) { | |
6721 | return error; | |
6722 | } | |
6723 | } | |
6724 | ||
6725 | return 0; | |
be0c30df | 6726 | } |
2e1ae200 | 6727 | |
f8e4867e SH |
6728 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
6729 | * message 'oh'. */ | |
6730 | size_t | |
6731 | ofputil_count_port_stats(const struct ofp_header *oh) | |
6732 | { | |
5469537b | 6733 | struct ofputil_port_stats ps; |
f8e4867e | 6734 | struct ofpbuf b; |
5469537b | 6735 | size_t n = 0; |
f8e4867e SH |
6736 | |
6737 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6738 | ofpraw_pull_assert(&b); | |
5469537b BP |
6739 | while (!ofputil_decode_port_stats(&ps, &b)) { |
6740 | n++; | |
6741 | } | |
6742 | return n; | |
f8e4867e SH |
6743 | } |
6744 | ||
6745 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
6746 | * ofputil_port_stats in 'ps'. | |
6747 | * | |
6748 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
6749 | * message. Calling this function multiple times for a single 'msg' iterates | |
6750 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6751 | * null and not modify them between calls. | |
6752 | * | |
6753 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6754 | * otherwise a positive errno value. */ | |
6755 | int | |
6756 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
6757 | { | |
6758 | enum ofperr error; | |
6759 | enum ofpraw raw; | |
6760 | ||
6fd6ed71 | 6761 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
6762 | : ofpraw_pull(&raw, msg)); |
6763 | if (error) { | |
6764 | return error; | |
6765 | } | |
6766 | ||
6fd6ed71 | 6767 | if (!msg->size) { |
f8e4867e | 6768 | return EOF; |
5469537b BP |
6769 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
6770 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
6771 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
6772 | const struct ofp13_port_stats *ps13; | |
6773 | ||
6774 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
6775 | if (!ps13) { | |
6776 | goto bad_len; | |
6777 | } | |
6778 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
6779 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
6780 | const struct ofp11_port_stats *ps11; | |
6781 | ||
6782 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
6783 | if (!ps11) { | |
2e1ae200 | 6784 | goto bad_len; |
f8e4867e SH |
6785 | } |
6786 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
6787 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
6788 | const struct ofp10_port_stats *ps10; | |
6789 | ||
6790 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
6791 | if (!ps10) { | |
2e1ae200 | 6792 | goto bad_len; |
f8e4867e SH |
6793 | } |
6794 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
6795 | } else { | |
428b2edd | 6796 | OVS_NOT_REACHED(); |
f8e4867e SH |
6797 | } |
6798 | ||
2e1ae200 | 6799 | bad_len: |
437d0d22 | 6800 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 6801 | "bytes at end", msg->size); |
2e1ae200 | 6802 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
6803 | } |
6804 | ||
6805 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
6806 | * port number and stores the latter in '*ofp10_port'. | |
6807 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6808 | enum ofperr | |
6809 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 6810 | ofp_port_t *ofp10_port) |
f8e4867e SH |
6811 | { |
6812 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 6813 | case OFP15_VERSION: |
5469537b | 6814 | case OFP14_VERSION: |
2e1ae200 | 6815 | case OFP13_VERSION: |
f8e4867e SH |
6816 | case OFP12_VERSION: |
6817 | case OFP11_VERSION: { | |
6818 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
6819 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
6820 | } | |
6821 | ||
6822 | case OFP10_VERSION: { | |
6823 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 6824 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
6825 | return 0; |
6826 | } | |
6827 | ||
6828 | default: | |
428b2edd | 6829 | OVS_NOT_REACHED(); |
f8e4867e SH |
6830 | } |
6831 | } | |
64626975 | 6832 | |
7395c052 NZ |
6833 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
6834 | void | |
ca6ba700 | 6835 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 6836 | { |
5f03c983 | 6837 | struct ofputil_bucket *bucket; |
7395c052 | 6838 | |
5f03c983 | 6839 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
6840 | free(bucket->ofpacts); |
6841 | free(bucket); | |
6842 | } | |
6843 | } | |
6844 | ||
103b4866 SH |
6845 | /* Clones 'bucket' and its ofpacts data */ |
6846 | static struct ofputil_bucket * | |
6847 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
6848 | { | |
6849 | struct ofputil_bucket *new; | |
6850 | ||
6851 | new = xmemdup(bucket, sizeof *bucket); | |
6852 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
6853 | ||
6854 | return new; | |
6855 | } | |
6856 | ||
6857 | /* Clones each of the buckets in the list 'src' appending them | |
6858 | * in turn to 'dest' which should be an initialised list. | |
6859 | * An exception is that if the pointer value of a bucket in 'src' | |
6860 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
6861 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
6862 | * be cloned and appended to 'dest'. */ | |
6863 | void | |
ca6ba700 | 6864 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
6865 | const struct ofputil_bucket *skip) |
6866 | { | |
6867 | struct ofputil_bucket *bucket; | |
6868 | ||
6869 | LIST_FOR_EACH (bucket, list_node, src) { | |
6870 | struct ofputil_bucket *new_bucket; | |
6871 | ||
6872 | if (bucket == skip) { | |
6873 | continue; | |
6874 | } | |
6875 | ||
6876 | new_bucket = ofputil_bucket_clone_data(bucket); | |
6877 | list_push_back(dest, &new_bucket->list_node); | |
6878 | } | |
6879 | } | |
6880 | ||
6881 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
6882 | * Returns the first bucket found or NULL if no buckets are found. */ | |
6883 | struct ofputil_bucket * | |
ca6ba700 | 6884 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
6885 | { |
6886 | struct ofputil_bucket *bucket; | |
6887 | ||
6888 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
6889 | return NULL; | |
6890 | } | |
6891 | ||
6892 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
6893 | if (bucket->bucket_id == bucket_id) { | |
6894 | return bucket; | |
6895 | } | |
6896 | } | |
6897 | ||
6898 | return NULL; | |
6899 | } | |
6900 | ||
6901 | /* Returns true if more than one bucket in the list 'buckets' | |
6902 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 6903 | bool |
ca6ba700 | 6904 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
6905 | { |
6906 | struct ofputil_bucket *i, *j; | |
6907 | ||
6908 | LIST_FOR_EACH (i, list_node, buckets) { | |
6909 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
6910 | if (i == j) { | |
6911 | break; | |
6912 | } | |
6913 | if (i->bucket_id == j->bucket_id) { | |
6914 | return true; | |
6915 | } | |
6916 | } | |
6917 | } | |
6918 | ||
6919 | return false; | |
6920 | } | |
6921 | ||
103b4866 SH |
6922 | /* Returns the bucket at the front of the list 'buckets'. |
6923 | * Undefined if 'buckets is empty. */ | |
6924 | struct ofputil_bucket * | |
ca6ba700 | 6925 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
6926 | { |
6927 | static struct ofputil_bucket *bucket; | |
6928 | ||
6929 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
6930 | ||
6931 | return bucket; | |
6932 | } | |
6933 | ||
6934 | /* Returns the bucket at the back of the list 'buckets'. | |
6935 | * Undefined if 'buckets is empty. */ | |
6936 | struct ofputil_bucket * | |
ca6ba700 | 6937 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
6938 | { |
6939 | static struct ofputil_bucket *bucket; | |
6940 | ||
6941 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
6942 | ||
6943 | return bucket; | |
6944 | } | |
6945 | ||
7395c052 NZ |
6946 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
6947 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
6948 | * for all groups.) | |
6949 | * | |
6950 | * Group statistics include packet and byte counts for each group. */ | |
6951 | struct ofpbuf * | |
6952 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
6953 | uint32_t group_id) | |
6954 | { | |
6955 | struct ofpbuf *request; | |
6956 | ||
6957 | switch (ofp_version) { | |
6958 | case OFP10_VERSION: | |
6959 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
6960 | "(\'-O OpenFlow11\')"); | |
6961 | case OFP11_VERSION: | |
6962 | case OFP12_VERSION: | |
c37c0382 | 6963 | case OFP13_VERSION: |
42dccab5 BP |
6964 | case OFP14_VERSION: |
6965 | case OFP15_VERSION: { | |
7395c052 NZ |
6966 | struct ofp11_group_stats_request *req; |
6967 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
6968 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6969 | req->group_id = htonl(group_id); | |
6970 | break; | |
6971 | } | |
6972 | default: | |
428b2edd | 6973 | OVS_NOT_REACHED(); |
7395c052 NZ |
6974 | } |
6975 | ||
6976 | return request; | |
6977 | } | |
6978 | ||
bc65c25a SH |
6979 | void |
6980 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
6981 | { | |
6982 | ofputil_bucket_list_destroy(&gd->buckets); | |
6983 | free(&gd->props.fields); | |
6984 | } | |
6985 | ||
19187a71 BP |
6986 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
6987 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
6988 | * requested. */ | |
6989 | uint32_t | |
6990 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
6991 | { | |
6992 | struct ofpbuf request; | |
6993 | enum ofpraw raw; | |
6994 | ||
6995 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
6996 | raw = ofpraw_pull_assert(&request); | |
6997 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
6998 | return OFPG_ALL; | |
6999 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7000 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7001 | return ntohl(*group_id); | |
7002 | } else { | |
7003 | OVS_NOT_REACHED(); | |
7004 | } | |
7005 | } | |
7006 | ||
7395c052 | 7007 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7008 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7009 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7010 | * groups). | |
7395c052 NZ |
7011 | * |
7012 | * Group descriptions include the bucket and action configuration for each | |
7013 | * group. */ | |
7014 | struct ofpbuf * | |
19187a71 BP |
7015 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7016 | uint32_t group_id) | |
7395c052 NZ |
7017 | { |
7018 | struct ofpbuf *request; | |
19187a71 | 7019 | ovs_be32 gid; |
7395c052 NZ |
7020 | |
7021 | switch (ofp_version) { | |
7022 | case OFP10_VERSION: | |
7023 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7024 | "(\'-O OpenFlow11\')"); | |
7025 | case OFP11_VERSION: | |
7026 | case OFP12_VERSION: | |
c37c0382 AC |
7027 | case OFP13_VERSION: |
7028 | case OFP14_VERSION: | |
19187a71 BP |
7029 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7030 | ofp_version, 0); | |
7031 | break; | |
42dccab5 | 7032 | case OFP15_VERSION: |
19187a71 BP |
7033 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7034 | ofp_version, 0); | |
7035 | gid = htonl(group_id); | |
7036 | ofpbuf_put(request, &gid, sizeof gid); | |
7395c052 | 7037 | break; |
7395c052 | 7038 | default: |
428b2edd | 7039 | OVS_NOT_REACHED(); |
7395c052 NZ |
7040 | } |
7041 | ||
7042 | return request; | |
7043 | } | |
7044 | ||
dcbe78ad | 7045 | static void |
63759e71 AZ |
7046 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7047 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7048 | { |
7395c052 NZ |
7049 | int i; |
7050 | ||
dcbe78ad AZ |
7051 | for (i = 0; i < gs->n_buckets; i++) { |
7052 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7053 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7054 | } |
7395c052 NZ |
7055 | } |
7056 | ||
7057 | static void | |
dcbe78ad | 7058 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7059 | struct ofp11_group_stats *gs11, size_t length, |
7060 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7061 | { |
63759e71 AZ |
7062 | memset(gs11, 0, sizeof *gs11); |
7063 | gs11->length = htons(length); | |
7064 | gs11->group_id = htonl(gs->group_id); | |
7065 | gs11->ref_count = htonl(gs->ref_count); | |
7066 | gs11->packet_count = htonll(gs->packet_count); | |
7067 | gs11->byte_count = htonll(gs->byte_count); | |
7068 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7069 | } |
7395c052 | 7070 | |
dcbe78ad AZ |
7071 | static void |
7072 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7073 | struct ofp13_group_stats *gs13, size_t length, |
7074 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7075 | { |
63759e71 | 7076 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7077 | gs13->duration_sec = htonl(gs->duration_sec); |
7078 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7079 | |
7395c052 NZ |
7080 | } |
7081 | ||
dcbe78ad | 7082 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7083 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7084 | * must have originally been initialized with ofpmp_init(). */ | |
7085 | void | |
ca6ba700 | 7086 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 7087 | const struct ofputil_group_stats *gs) |
7395c052 | 7088 | { |
63759e71 AZ |
7089 | size_t bucket_counter_size; |
7090 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7091 | size_t length; |
7395c052 | 7092 | |
63759e71 AZ |
7093 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7094 | ||
e28ac5cf | 7095 | switch (ofpmp_version(replies)) { |
7395c052 | 7096 | case OFP11_VERSION: |
dcbe78ad | 7097 | case OFP12_VERSION:{ |
63759e71 | 7098 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7099 | |
63759e71 AZ |
7100 | length = sizeof *gs11 + bucket_counter_size; |
7101 | gs11 = ofpmp_append(replies, length); | |
7102 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7103 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7104 | break; |
7105 | } | |
7395c052 NZ |
7106 | |
7107 | case OFP13_VERSION: | |
42dccab5 BP |
7108 | case OFP14_VERSION: |
7109 | case OFP15_VERSION: { | |
63759e71 | 7110 | struct ofp13_group_stats *gs13; |
7395c052 | 7111 | |
63759e71 AZ |
7112 | length = sizeof *gs13 + bucket_counter_size; |
7113 | gs13 = ofpmp_append(replies, length); | |
7114 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7115 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7116 | break; |
7117 | } | |
c37c0382 | 7118 | |
7395c052 NZ |
7119 | case OFP10_VERSION: |
7120 | default: | |
428b2edd | 7121 | OVS_NOT_REACHED(); |
7395c052 NZ |
7122 | } |
7123 | } | |
7395c052 NZ |
7124 | /* Returns an OpenFlow group features request for OpenFlow version |
7125 | * 'ofp_version'. */ | |
7126 | struct ofpbuf * | |
7127 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7128 | { | |
7129 | struct ofpbuf *request = NULL; | |
7130 | ||
7131 | switch (ofp_version) { | |
7132 | case OFP10_VERSION: | |
7133 | case OFP11_VERSION: | |
7134 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7135 | "(\'-O OpenFlow12\')"); | |
7136 | case OFP12_VERSION: | |
c37c0382 AC |
7137 | case OFP13_VERSION: |
7138 | case OFP14_VERSION: | |
42dccab5 | 7139 | case OFP15_VERSION: |
7395c052 | 7140 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7141 | ofp_version, 0); |
7395c052 | 7142 | break; |
7395c052 | 7143 | default: |
428b2edd | 7144 | OVS_NOT_REACHED(); |
7395c052 NZ |
7145 | } |
7146 | ||
7147 | return request; | |
7148 | } | |
7149 | ||
7150 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7151 | * group features request 'request'. */ | |
7152 | struct ofpbuf * | |
7153 | ofputil_encode_group_features_reply( | |
7154 | const struct ofputil_group_features *features, | |
7155 | const struct ofp_header *request) | |
7156 | { | |
7157 | struct ofp12_group_features_stats *ogf; | |
7158 | struct ofpbuf *reply; | |
08d1e234 | 7159 | int i; |
7395c052 NZ |
7160 | |
7161 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7162 | request->version, request->xid, 0); | |
7163 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7164 | ogf->types = htonl(features->types); | |
7165 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7166 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7167 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7168 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7169 | request->version); | |
7170 | } | |
7395c052 NZ |
7171 | |
7172 | return reply; | |
7173 | } | |
7174 | ||
7175 | /* Decodes group features reply 'oh' into 'features'. */ | |
7176 | void | |
7177 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7178 | struct ofputil_group_features *features) | |
7179 | { | |
7180 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7181 | int i; |
7395c052 NZ |
7182 | |
7183 | features->types = ntohl(ogf->types); | |
7184 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7185 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7186 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7187 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7188 | ogf->actions[i], oh->version); | |
7189 | } | |
7395c052 NZ |
7190 | } |
7191 | ||
7192 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7193 | * group ID and stores the latter in '*group_id'. | |
7194 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7195 | enum ofperr | |
7196 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7197 | uint32_t *group_id) | |
7198 | { | |
7199 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7200 | *group_id = ntohl(gsr11->group_id); | |
7201 | return 0; | |
7202 | } | |
7203 | ||
7204 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7205 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7206 | * caller to eventually free. | |
7395c052 NZ |
7207 | * |
7208 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7209 | * Calling this function multiple times for a single 'msg' iterates through the | |
7210 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7211 | * not modify them between calls. | |
7212 | * | |
7213 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7214 | * otherwise a positive errno value. */ | |
7215 | int | |
7216 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7217 | struct ofputil_group_stats *gs) | |
7218 | { | |
7219 | struct ofp11_bucket_counter *obc; | |
7220 | struct ofp11_group_stats *ogs11; | |
7221 | enum ofpraw raw; | |
7222 | enum ofperr error; | |
7223 | size_t base_len; | |
7224 | size_t length; | |
7225 | size_t i; | |
7226 | ||
646b2a9c | 7227 | gs->bucket_stats = NULL; |
6fd6ed71 | 7228 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
7229 | : ofpraw_pull(&raw, msg)); |
7230 | if (error) { | |
7231 | return error; | |
7232 | } | |
7233 | ||
6fd6ed71 | 7234 | if (!msg->size) { |
7395c052 NZ |
7235 | return EOF; |
7236 | } | |
7237 | ||
7238 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7239 | base_len = sizeof *ogs11; | |
7240 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7241 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7242 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7243 | struct ofp13_group_stats *ogs13; | |
7244 | ||
7245 | base_len = sizeof *ogs13; | |
7246 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7247 | if (ogs13) { | |
7248 | ogs11 = &ogs13->gs; | |
7249 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7250 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7251 | } else { | |
7252 | ogs11 = NULL; | |
7253 | } | |
7254 | } else { | |
428b2edd | 7255 | OVS_NOT_REACHED(); |
7395c052 NZ |
7256 | } |
7257 | ||
7258 | if (!ogs11) { | |
437d0d22 | 7259 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7260 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7261 | return OFPERR_OFPBRC_BAD_LEN; |
7262 | } | |
7263 | length = ntohs(ogs11->length); | |
7264 | if (length < sizeof base_len) { | |
34582733 | 7265 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7266 | ofpraw_get_name(raw), length); |
7267 | return OFPERR_OFPBRC_BAD_LEN; | |
7268 | } | |
7269 | ||
7270 | gs->group_id = ntohl(ogs11->group_id); | |
7271 | gs->ref_count = ntohl(ogs11->ref_count); | |
7272 | gs->packet_count = ntohll(ogs11->packet_count); | |
7273 | gs->byte_count = ntohll(ogs11->byte_count); | |
7274 | ||
7275 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7276 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7277 | if (!obc) { | |
437d0d22 | 7278 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7279 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7280 | return OFPERR_OFPBRC_BAD_LEN; |
7281 | } | |
7282 | ||
646b2a9c | 7283 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7284 | for (i = 0; i < gs->n_buckets; i++) { |
7285 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7286 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7287 | } | |
7288 | ||
7289 | return 0; | |
7290 | } | |
7291 | ||
5097fee5 SH |
7292 | static void |
7293 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7294 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7295 | { | |
7296 | struct ofp11_bucket *ob; | |
7297 | size_t start; | |
7298 | ||
6fd6ed71 | 7299 | start = openflow->size; |
5097fee5 SH |
7300 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7301 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7302 | openflow, ofp_version); | |
7303 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7304 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
7305 | ob->weight = htons(bucket->weight); |
7306 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7307 | ob->watch_group = htonl(bucket->watch_group); | |
7308 | } | |
7309 | ||
18ac06d3 SH |
7310 | static void |
7311 | ofputil_put_ofp15_group_bucket_prop_weight(ovs_be16 weight, | |
7312 | struct ofpbuf *openflow) | |
7313 | { | |
7314 | size_t start_ofs; | |
7315 | struct ofp15_group_bucket_prop_weight *prop; | |
7316 | ||
7317 | start_ofs = start_property(openflow, OFPGBPT15_WEIGHT); | |
7318 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7319 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7320 | prop->weight = weight; | |
7321 | end_property(openflow, start_ofs); | |
7322 | } | |
7323 | ||
7324 | static void | |
7325 | ofputil_put_ofp15_group_bucket_prop_watch(ovs_be32 watch, uint16_t type, | |
7326 | struct ofpbuf *openflow) | |
7327 | { | |
7328 | size_t start_ofs; | |
7329 | struct ofp15_group_bucket_prop_watch *prop; | |
7330 | ||
7331 | start_ofs = start_property(openflow, type); | |
7332 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7333 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7334 | prop->watch = watch; | |
7335 | end_property(openflow, start_ofs); | |
7336 | } | |
7337 | ||
7338 | static void | |
7339 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7340 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7341 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7342 | { | |
7343 | struct ofp15_bucket *ob; | |
7344 | size_t start, actions_start, actions_len; | |
7345 | ||
6fd6ed71 | 7346 | start = openflow->size; |
18ac06d3 SH |
7347 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7348 | ||
6fd6ed71 | 7349 | actions_start = openflow->size; |
18ac06d3 SH |
7350 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7351 | openflow, ofp_version); | |
6fd6ed71 | 7352 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
7353 | |
7354 | if (group_type == OFPGT11_SELECT) { | |
7355 | ofputil_put_ofp15_group_bucket_prop_weight(htons(bucket->weight), | |
7356 | openflow); | |
7357 | } | |
7358 | if (bucket->watch_port != OFPP_ANY) { | |
7359 | ovs_be32 port = ofputil_port_to_ofp11(bucket->watch_port); | |
7360 | ofputil_put_ofp15_group_bucket_prop_watch(port, | |
7361 | OFPGBPT15_WATCH_PORT, | |
7362 | openflow); | |
7363 | } | |
7364 | if (bucket->watch_group != OFPG_ANY) { | |
7365 | ovs_be32 group = htonl(bucket->watch_group); | |
7366 | ofputil_put_ofp15_group_bucket_prop_watch(group, | |
7367 | OFPGBPT15_WATCH_GROUP, | |
7368 | openflow); | |
7369 | } | |
7370 | ||
7371 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7372 | ob->len = htons(openflow->size - start); |
79870963 | 7373 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
7374 | ob->bucket_id = htonl(bucket_id); |
7375 | } | |
7376 | ||
53eb84a5 SH |
7377 | static void |
7378 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
7379 | const struct ofputil_group_props *gp, | |
7380 | struct ofpbuf *openflow) | |
7381 | { | |
7382 | struct ntr_group_prop_selection_method *prop; | |
7383 | size_t start; | |
7384 | ||
7385 | start = openflow->size; | |
7386 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
7387 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
7388 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
7389 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
7390 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
7391 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
7392 | strcpy(prop->selection_method, gp->selection_method); | |
7393 | prop->selection_method_param = htonll(gp->selection_method_param); | |
7394 | end_property(openflow, start); | |
7395 | } | |
7396 | ||
5be50252 SH |
7397 | static void |
7398 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7399 | const struct ovs_list *buckets, |
ca6ba700 | 7400 | struct ovs_list *replies, |
5be50252 | 7401 | enum ofp_version version) |
7395c052 NZ |
7402 | { |
7403 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7404 | struct ofp11_group_desc_stats *ogds; | |
7405 | struct ofputil_bucket *bucket; | |
7406 | size_t start_ogds; | |
7407 | ||
6fd6ed71 | 7408 | start_ogds = reply->size; |
7395c052 NZ |
7409 | ofpbuf_put_zeros(reply, sizeof *ogds); |
7410 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 7411 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
7412 | } |
7413 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 7414 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
7415 | ogds->type = gds->type; |
7416 | ogds->group_id = htonl(gds->group_id); | |
7417 | ||
7418 | ofpmp_postappend(replies, start_ogds); | |
7419 | } | |
7420 | ||
18ac06d3 SH |
7421 | static void |
7422 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7423 | const struct ovs_list *buckets, |
ca6ba700 | 7424 | struct ovs_list *replies, |
18ac06d3 SH |
7425 | enum ofp_version version) |
7426 | { | |
7427 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7428 | struct ofp15_group_desc_stats *ogds; | |
7429 | struct ofputil_bucket *bucket; | |
7430 | size_t start_ogds, start_buckets; | |
7431 | ||
6fd6ed71 | 7432 | start_ogds = reply->size; |
18ac06d3 | 7433 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 7434 | start_buckets = reply->size; |
18ac06d3 SH |
7435 | LIST_FOR_EACH (bucket, list_node, buckets) { |
7436 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
7437 | gds->type, reply, version); | |
7438 | } | |
7439 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 7440 | ogds->length = htons(reply->size - start_ogds); |
18ac06d3 SH |
7441 | ogds->type = gds->type; |
7442 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 7443 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 7444 | |
53eb84a5 SH |
7445 | /* Add group properties */ |
7446 | if (gds->props.selection_method[0]) { | |
7447 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
7448 | reply); | |
7449 | } | |
7450 | ||
18ac06d3 SH |
7451 | ofpmp_postappend(replies, start_ogds); |
7452 | } | |
7453 | ||
5be50252 SH |
7454 | /* Appends a group stats reply that contains the data in 'gds' to those already |
7455 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
7456 | * initialized with ofpmp_init(). */ | |
7457 | void | |
7458 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7459 | const struct ovs_list *buckets, |
ca6ba700 | 7460 | struct ovs_list *replies) |
5be50252 SH |
7461 | { |
7462 | enum ofp_version version = ofpmp_version(replies); | |
7463 | ||
7464 | switch (version) | |
7465 | { | |
7466 | case OFP11_VERSION: | |
7467 | case OFP12_VERSION: | |
7468 | case OFP13_VERSION: | |
7469 | case OFP14_VERSION: | |
5be50252 SH |
7470 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
7471 | break; | |
7472 | ||
18ac06d3 SH |
7473 | case OFP15_VERSION: |
7474 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
7475 | break; | |
7476 | ||
5be50252 SH |
7477 | case OFP10_VERSION: |
7478 | default: | |
7479 | OVS_NOT_REACHED(); | |
7480 | } | |
7481 | } | |
7482 | ||
7395c052 | 7483 | static enum ofperr |
655ed3ae | 7484 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 7485 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
7486 | { |
7487 | struct ofp11_bucket *ob; | |
18ac06d3 | 7488 | uint32_t bucket_id = 0; |
7395c052 NZ |
7489 | |
7490 | list_init(buckets); | |
7491 | while (buckets_length > 0) { | |
7492 | struct ofputil_bucket *bucket; | |
7493 | struct ofpbuf ofpacts; | |
7494 | enum ofperr error; | |
7495 | size_t ob_len; | |
7496 | ||
7497 | ob = (buckets_length >= sizeof *ob | |
7498 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
7499 | : NULL); | |
7500 | if (!ob) { | |
34582733 | 7501 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 7502 | buckets_length); |
e27e4ce9 | 7503 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
7504 | } |
7505 | ||
7506 | ob_len = ntohs(ob->len); | |
7507 | if (ob_len < sizeof *ob) { | |
7508 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7509 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
7510 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7511 | } else if (ob_len > buckets_length) { | |
7512 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7513 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
7514 | ob_len, buckets_length); |
7515 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
7516 | } | |
7517 | buckets_length -= ob_len; | |
7518 | ||
7519 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
7520 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
7521 | version, &ofpacts); | |
7395c052 NZ |
7522 | if (error) { |
7523 | ofpbuf_uninit(&ofpacts); | |
7524 | ofputil_bucket_list_destroy(buckets); | |
7525 | return error; | |
7526 | } | |
7527 | ||
7528 | bucket = xzalloc(sizeof *bucket); | |
7529 | bucket->weight = ntohs(ob->weight); | |
7530 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
7531 | if (error) { | |
7532 | ofpbuf_uninit(&ofpacts); | |
7533 | ofputil_bucket_list_destroy(buckets); | |
7534 | return OFPERR_OFPGMFC_BAD_WATCH; | |
7535 | } | |
7536 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
7537 | bucket->bucket_id = bucket_id++; |
7538 | ||
7395c052 | 7539 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 7540 | bucket->ofpacts_len = ofpacts.size; |
7395c052 NZ |
7541 | list_push_back(buckets, &bucket->list_node); |
7542 | } | |
7543 | ||
7544 | return 0; | |
7545 | } | |
7546 | ||
18ac06d3 SH |
7547 | static enum ofperr |
7548 | parse_ofp15_group_bucket_prop_weight(const struct ofpbuf *payload, | |
7549 | ovs_be16 *weight) | |
7550 | { | |
6fd6ed71 | 7551 | struct ofp15_group_bucket_prop_weight *prop = payload->data; |
18ac06d3 | 7552 | |
6fd6ed71 | 7553 | if (payload->size != sizeof *prop) { |
18ac06d3 | 7554 | log_property(false, "OpenFlow bucket weight property length " |
6fd6ed71 | 7555 | "%u is not valid", payload->size); |
18ac06d3 SH |
7556 | return OFPERR_OFPBPC_BAD_LEN; |
7557 | } | |
7558 | ||
7559 | *weight = prop->weight; | |
7560 | ||
7561 | return 0; | |
7562 | } | |
7563 | ||
7564 | static enum ofperr | |
7565 | parse_ofp15_group_bucket_prop_watch(const struct ofpbuf *payload, | |
7566 | ovs_be32 *watch) | |
7567 | { | |
6fd6ed71 | 7568 | struct ofp15_group_bucket_prop_watch *prop = payload->data; |
18ac06d3 | 7569 | |
6fd6ed71 | 7570 | if (payload->size != sizeof *prop) { |
18ac06d3 | 7571 | log_property(false, "OpenFlow bucket watch port or group " |
6fd6ed71 | 7572 | "property length %u is not valid", payload->size); |
18ac06d3 SH |
7573 | return OFPERR_OFPBPC_BAD_LEN; |
7574 | } | |
7575 | ||
7576 | *watch = prop->watch; | |
7577 | ||
7578 | return 0; | |
7579 | } | |
7580 | ||
7581 | static enum ofperr | |
7582 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
ca6ba700 | 7583 | enum ofp_version version, struct ovs_list *buckets) |
18ac06d3 SH |
7584 | { |
7585 | struct ofp15_bucket *ob; | |
7586 | ||
7587 | list_init(buckets); | |
7588 | while (buckets_length > 0) { | |
7589 | struct ofputil_bucket *bucket = NULL; | |
7590 | struct ofpbuf ofpacts; | |
7591 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
7592 | struct ofpbuf properties; | |
7593 | size_t ob_len, actions_len, properties_len; | |
7594 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
7595 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
7596 | ovs_be16 weight = htons(1); | |
7597 | ||
7598 | ofpbuf_init(&ofpacts, 0); | |
7599 | ||
7600 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
7601 | if (!ob) { | |
7602 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
7603 | " leftover bytes", buckets_length); | |
7604 | goto err; | |
7605 | } | |
7606 | ||
7607 | ob_len = ntohs(ob->len); | |
79870963 | 7608 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
7609 | |
7610 | if (ob_len < sizeof *ob) { | |
7611 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
7612 | "%"PRIuSIZE" is not valid", ob_len); | |
7613 | goto err; | |
7614 | } else if (ob_len > buckets_length) { | |
7615 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
7616 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
7617 | PRIuSIZE, ob_len, buckets_length); | |
7618 | goto err; | |
7619 | } else if (actions_len > ob_len - sizeof *ob) { | |
7620 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
7621 | "length %"PRIuSIZE" exceeds remaining bucket " | |
7622 | "data size %"PRIuSIZE, actions_len, | |
7623 | ob_len - sizeof *ob); | |
7624 | goto err; | |
7625 | } | |
7626 | buckets_length -= ob_len; | |
7627 | ||
7628 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
7629 | &ofpacts); | |
7630 | if (err) { | |
7631 | goto err; | |
7632 | } | |
7633 | ||
7634 | properties_len = ob_len - sizeof *ob - actions_len; | |
7635 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
7636 | properties_len); | |
7637 | ||
6fd6ed71 | 7638 | while (properties.size > 0) { |
18ac06d3 SH |
7639 | struct ofpbuf payload; |
7640 | uint16_t type; | |
7641 | ||
7642 | err = ofputil_pull_property(&properties, &payload, &type); | |
7643 | if (err) { | |
7644 | goto err; | |
7645 | } | |
7646 | ||
7647 | switch (type) { | |
7648 | case OFPGBPT15_WEIGHT: | |
7649 | err = parse_ofp15_group_bucket_prop_weight(&payload, &weight); | |
7650 | break; | |
7651 | ||
7652 | case OFPGBPT15_WATCH_PORT: | |
7653 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
7654 | &watch_port); | |
7655 | break; | |
7656 | ||
7657 | case OFPGBPT15_WATCH_GROUP: | |
7658 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
7659 | &watch_group); | |
7660 | break; | |
7661 | ||
7662 | default: | |
7663 | log_property(false, "unknown group bucket property %"PRIu16, | |
7664 | type); | |
7665 | err = OFPERR_OFPBPC_BAD_TYPE; | |
7666 | break; | |
7667 | } | |
7668 | ||
7669 | if (err) { | |
7670 | goto err; | |
7671 | } | |
7672 | } | |
7673 | ||
7674 | bucket = xzalloc(sizeof *bucket); | |
7675 | ||
7676 | bucket->weight = ntohs(weight); | |
7677 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
7678 | if (err) { | |
7679 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
7680 | goto err; | |
7681 | } | |
7682 | bucket->watch_group = ntohl(watch_group); | |
7683 | bucket->bucket_id = ntohl(ob->bucket_id); | |
7684 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
7685 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
7686 | bucket->bucket_id); | |
7687 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
7688 | goto err; | |
7689 | } | |
7690 | ||
7691 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 7692 | bucket->ofpacts_len = ofpacts.size; |
18ac06d3 SH |
7693 | list_push_back(buckets, &bucket->list_node); |
7694 | ||
7695 | continue; | |
7696 | ||
7697 | err: | |
7698 | free(bucket); | |
7699 | ofpbuf_uninit(&ofpacts); | |
7700 | ofputil_bucket_list_destroy(buckets); | |
7701 | return err; | |
7702 | } | |
7703 | ||
7704 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
7705 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
7706 | ofputil_bucket_list_destroy(buckets); | |
7707 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
7708 | } | |
7709 | ||
7710 | return 0; | |
7711 | } | |
7712 | ||
bc65c25a SH |
7713 | static void |
7714 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
7715 | { | |
7716 | memset(gp, 0, sizeof *gp); | |
7717 | } | |
7718 | ||
7719 | static enum ofperr | |
7720 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
7721 | enum ofp11_group_type group_type, | |
7722 | enum ofp15_group_mod_command group_cmd, | |
7723 | struct ofputil_group_props *gp) | |
7724 | { | |
7725 | struct ntr_group_prop_selection_method *prop = payload->data; | |
7726 | size_t fields_len, method_len; | |
7727 | enum ofperr error; | |
7728 | ||
7729 | switch (group_type) { | |
7730 | case OFPGT11_SELECT: | |
7731 | break; | |
7732 | case OFPGT11_ALL: | |
7733 | case OFPGT11_INDIRECT: | |
7734 | case OFPGT11_FF: | |
7735 | log_property(false, "ntr selection method property is only allowed " | |
7736 | "for select groups"); | |
7737 | return OFPERR_OFPBPC_BAD_VALUE; | |
7738 | default: | |
7739 | OVS_NOT_REACHED(); | |
7740 | } | |
7741 | ||
7742 | switch (group_cmd) { | |
7743 | case OFPGC15_ADD: | |
7744 | case OFPGC15_MODIFY: | |
7745 | break; | |
7746 | case OFPGC15_DELETE: | |
7747 | case OFPGC15_INSERT_BUCKET: | |
7748 | case OFPGC15_REMOVE_BUCKET: | |
7749 | log_property(false, "ntr selection method property is only allowed " | |
7750 | "for add and delete group modifications"); | |
7751 | return OFPERR_OFPBPC_BAD_VALUE; | |
7752 | default: | |
7753 | OVS_NOT_REACHED(); | |
7754 | } | |
7755 | ||
7756 | if (payload->size < sizeof *prop) { | |
7757 | log_property(false, "ntr selection method property length " | |
7758 | "%u is not valid", payload->size); | |
7759 | return OFPERR_OFPBPC_BAD_LEN; | |
7760 | } | |
7761 | ||
7762 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
7763 | ||
7764 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
7765 | log_property(false, "ntr selection method is not null terminated"); | |
7766 | return OFPERR_OFPBPC_BAD_VALUE; | |
7767 | } | |
7768 | ||
0c4b9393 SH |
7769 | if (strcmp("hash", prop->selection_method)) { |
7770 | log_property(false, "ntr selection method '%s' is not supported", | |
7771 | prop->selection_method); | |
7772 | return OFPERR_OFPBPC_BAD_VALUE; | |
7773 | } | |
bc65c25a SH |
7774 | |
7775 | strcpy(gp->selection_method, prop->selection_method); | |
7776 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
7777 | ||
7778 | if (!method_len && gp->selection_method_param) { | |
7779 | log_property(false, "ntr selection method parameter is non-zero but " | |
7780 | "selection method is empty"); | |
7781 | return OFPERR_OFPBPC_BAD_VALUE; | |
7782 | } | |
7783 | ||
7784 | ofpbuf_pull(payload, sizeof *prop); | |
7785 | ||
7786 | fields_len = ntohs(prop->length) - sizeof *prop; | |
7787 | if (!method_len && fields_len) { | |
7788 | log_property(false, "ntr selection method parameter is zero " | |
7789 | "but fields are provided"); | |
7790 | return OFPERR_OFPBPC_BAD_VALUE; | |
7791 | } | |
7792 | ||
7793 | error = oxm_pull_field_array(payload->data, fields_len, | |
7794 | &gp->fields); | |
7795 | if (error) { | |
7796 | log_property(false, "ntr selection method fields are invalid"); | |
7797 | return error; | |
7798 | } | |
7799 | ||
7800 | return 0; | |
7801 | } | |
7802 | ||
7803 | static enum ofperr | |
7804 | parse_group_prop_ntr(struct ofpbuf *payload, uint32_t exp_type, | |
7805 | enum ofp11_group_type group_type, | |
7806 | enum ofp15_group_mod_command group_cmd, | |
7807 | struct ofputil_group_props *gp) | |
7808 | { | |
7809 | enum ofperr error; | |
7810 | ||
7811 | switch (exp_type) { | |
7812 | case NTRT_SELECTION_METHOD: | |
7813 | error = parse_group_prop_ntr_selection_method(payload, group_type, | |
7814 | group_cmd, gp); | |
7815 | break; | |
7816 | ||
7817 | default: | |
7818 | log_property(false, "unknown group property ntr experimenter type " | |
7819 | "%"PRIu32, exp_type); | |
7820 | error = OFPERR_OFPBPC_BAD_TYPE; | |
7821 | break; | |
7822 | } | |
7823 | ||
7824 | return error; | |
7825 | } | |
7826 | ||
7827 | static enum ofperr | |
7828 | parse_ofp15_group_prop_exp(struct ofpbuf *payload, | |
7829 | enum ofp11_group_type group_type, | |
7830 | enum ofp15_group_mod_command group_cmd, | |
7831 | struct ofputil_group_props *gp) | |
7832 | { | |
7833 | struct ofp_prop_experimenter *prop = payload->data; | |
7834 | uint16_t experimenter; | |
7835 | uint32_t exp_type; | |
7836 | enum ofperr error; | |
7837 | ||
7838 | if (payload->size < sizeof *prop) { | |
7839 | return OFPERR_OFPBPC_BAD_LEN; | |
7840 | } | |
7841 | ||
7842 | experimenter = ntohl(prop->experimenter); | |
7843 | exp_type = ntohl(prop->exp_type); | |
7844 | ||
7845 | switch (experimenter) { | |
7846 | case NTR_VENDOR_ID: | |
7847 | error = parse_group_prop_ntr(payload, exp_type, group_type, | |
7848 | group_cmd, gp); | |
7849 | break; | |
7850 | ||
7851 | default: | |
7852 | log_property(false, "unknown group property experimenter %"PRIu16, | |
7853 | experimenter); | |
7854 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
7855 | break; | |
7856 | } | |
7857 | ||
7858 | return error; | |
7859 | } | |
7860 | ||
7861 | static enum ofperr | |
7862 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
7863 | enum ofp11_group_type group_type, | |
7864 | enum ofp15_group_mod_command group_cmd, | |
7865 | struct ofputil_group_props *gp, | |
7866 | size_t properties_len) | |
7867 | { | |
7868 | struct ofpbuf properties; | |
7869 | ||
7870 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
7871 | properties_len); | |
7872 | ||
7873 | while (properties.size > 0) { | |
7874 | struct ofpbuf payload; | |
7875 | enum ofperr error; | |
7876 | uint16_t type; | |
7877 | ||
7878 | error = ofputil_pull_property(&properties, &payload, &type); | |
7879 | if (error) { | |
7880 | return error; | |
7881 | } | |
7882 | ||
7883 | switch (type) { | |
7884 | case OFPGPT15_EXPERIMENTER: | |
7885 | error = parse_ofp15_group_prop_exp(&payload, group_type, | |
7886 | group_cmd, gp); | |
7887 | break; | |
7888 | ||
7889 | default: | |
7890 | log_property(false, "unknown group property %"PRIu16, type); | |
7891 | error = OFPERR_OFPBPC_BAD_TYPE; | |
7892 | break; | |
7893 | } | |
7894 | ||
7895 | if (error) { | |
7896 | return error; | |
7897 | } | |
7898 | } | |
7899 | ||
7900 | return 0; | |
7901 | } | |
7902 | ||
975910f2 SH |
7903 | static int |
7904 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
7905 | struct ofpbuf *msg, | |
7906 | enum ofp_version version) | |
7395c052 NZ |
7907 | { |
7908 | struct ofp11_group_desc_stats *ogds; | |
7909 | size_t length; | |
7910 | ||
6fd6ed71 | 7911 | if (!msg->header) { |
7395c052 NZ |
7912 | ofpraw_pull_assert(msg); |
7913 | } | |
7914 | ||
6fd6ed71 | 7915 | if (!msg->size) { |
7395c052 NZ |
7916 | return EOF; |
7917 | } | |
7918 | ||
7919 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
7920 | if (!ogds) { | |
437d0d22 | 7921 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 7922 | "leftover bytes at end", msg->size); |
7395c052 NZ |
7923 | return OFPERR_OFPBRC_BAD_LEN; |
7924 | } | |
7925 | gd->type = ogds->type; | |
7926 | gd->group_id = ntohl(ogds->group_id); | |
7927 | ||
7928 | length = ntohs(ogds->length); | |
6fd6ed71 | 7929 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 7930 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 7931 | "length %"PRIuSIZE, length); |
7395c052 NZ |
7932 | return OFPERR_OFPBRC_BAD_LEN; |
7933 | } | |
7934 | ||
655ed3ae SH |
7935 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
7936 | &gd->buckets); | |
7395c052 NZ |
7937 | } |
7938 | ||
18ac06d3 SH |
7939 | static int |
7940 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
7941 | struct ofpbuf *msg, | |
7942 | enum ofp_version version) | |
7943 | { | |
7944 | struct ofp15_group_desc_stats *ogds; | |
7945 | uint16_t length, bucket_list_len; | |
bc65c25a | 7946 | int error; |
18ac06d3 | 7947 | |
6fd6ed71 | 7948 | if (!msg->header) { |
18ac06d3 SH |
7949 | ofpraw_pull_assert(msg); |
7950 | } | |
7951 | ||
6fd6ed71 | 7952 | if (!msg->size) { |
18ac06d3 SH |
7953 | return EOF; |
7954 | } | |
7955 | ||
7956 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
7957 | if (!ogds) { | |
7958 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 7959 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
7960 | return OFPERR_OFPBRC_BAD_LEN; |
7961 | } | |
7962 | gd->type = ogds->type; | |
7963 | gd->group_id = ntohl(ogds->group_id); | |
7964 | ||
7965 | length = ntohs(ogds->length); | |
6fd6ed71 | 7966 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
7967 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
7968 | "length %u", length); | |
7969 | return OFPERR_OFPBRC_BAD_LEN; | |
7970 | } | |
7971 | ||
7972 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
7973 | if (length < bucket_list_len + sizeof *ogds) { | |
7974 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
7975 | "bucket list length %u", bucket_list_len); | |
7976 | return OFPERR_OFPBRC_BAD_LEN; | |
7977 | } | |
bc65c25a SH |
7978 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, |
7979 | &gd->buckets); | |
7980 | if (error) { | |
7981 | return error; | |
7982 | } | |
18ac06d3 | 7983 | |
bc65c25a SH |
7984 | /* By definition group desc messages don't have a group mod command. |
7985 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
7986 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
7987 | * against group mod messages with other commands supplying | |
7988 | * a NTR selection method group experimenter property. | |
7989 | * Such properties are valid for group desc replies so | |
7990 | * claim that the group mod command is OFPGC15_ADD to | |
7991 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
7992 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
7993 | msg->size); | |
18ac06d3 SH |
7994 | } |
7995 | ||
975910f2 SH |
7996 | /* Converts a group description reply in 'msg' into an abstract |
7997 | * ofputil_group_desc in 'gd'. | |
7998 | * | |
7999 | * Multiple group description replies can be packed into a single OpenFlow | |
8000 | * message. Calling this function multiple times for a single 'msg' iterates | |
8001 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8002 | * null and not modify them between calls. | |
8003 | * | |
8004 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8005 | * otherwise a positive errno value. */ | |
8006 | int | |
8007 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8008 | struct ofpbuf *msg, enum ofp_version version) | |
8009 | { | |
bc65c25a SH |
8010 | ofputil_init_group_properties(&gd->props); |
8011 | ||
975910f2 SH |
8012 | switch (version) |
8013 | { | |
8014 | case OFP11_VERSION: | |
8015 | case OFP12_VERSION: | |
8016 | case OFP13_VERSION: | |
8017 | case OFP14_VERSION: | |
975910f2 SH |
8018 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8019 | ||
18ac06d3 SH |
8020 | case OFP15_VERSION: |
8021 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8022 | ||
975910f2 SH |
8023 | case OFP10_VERSION: |
8024 | default: | |
8025 | OVS_NOT_REACHED(); | |
8026 | } | |
8027 | } | |
8028 | ||
bc65c25a SH |
8029 | void |
8030 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8031 | { | |
8032 | ofputil_bucket_list_destroy(&gm->buckets); | |
8033 | } | |
8034 | ||
4498bea5 SH |
8035 | static struct ofpbuf * |
8036 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8037 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8038 | { |
8039 | struct ofpbuf *b; | |
8040 | struct ofp11_group_mod *ogm; | |
8041 | size_t start_ogm; | |
7395c052 | 8042 | struct ofputil_bucket *bucket; |
7395c052 | 8043 | |
4498bea5 | 8044 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8045 | start_ogm = b->size; |
4498bea5 SH |
8046 | ofpbuf_put_zeros(b, sizeof *ogm); |
8047 | ||
8048 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8049 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8050 | } | |
8051 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8052 | ogm->command = htons(gm->command); | |
8053 | ogm->type = gm->type; | |
8054 | ogm->group_id = htonl(gm->group_id); | |
8055 | ||
8056 | return b; | |
8057 | } | |
8058 | ||
18ac06d3 SH |
8059 | static struct ofpbuf * |
8060 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8061 | const struct ofputil_group_mod *gm) | |
8062 | { | |
8063 | struct ofpbuf *b; | |
8064 | struct ofp15_group_mod *ogm; | |
8065 | size_t start_ogm; | |
8066 | struct ofputil_bucket *bucket; | |
8067 | struct id_pool *bucket_ids = NULL; | |
8068 | ||
8069 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8070 | start_ogm = b->size; |
18ac06d3 SH |
8071 | ofpbuf_put_zeros(b, sizeof *ogm); |
8072 | ||
8073 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8074 | uint32_t bucket_id; | |
8075 | ||
8076 | /* Generate a bucket id if none was supplied */ | |
8077 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8078 | if (!bucket_ids) { | |
8079 | const struct ofputil_bucket *bkt; | |
8080 | ||
8081 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8082 | ||
8083 | /* Mark all bucket_ids that are present in gm | |
8084 | * as used in the pool. */ | |
8085 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8086 | if (bkt == bucket) { | |
8087 | break; | |
8088 | } | |
8089 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8090 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8091 | } | |
8092 | } | |
8093 | } | |
8094 | ||
8095 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8096 | OVS_NOT_REACHED(); | |
8097 | } | |
8098 | } else { | |
8099 | bucket_id = bucket->bucket_id; | |
8100 | } | |
8101 | ||
8102 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8103 | } | |
8104 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8105 | ogm->command = htons(gm->command); | |
8106 | ogm->type = gm->type; | |
8107 | ogm->group_id = htonl(gm->group_id); | |
8108 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8109 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8110 | |
53eb84a5 SH |
8111 | /* Add group properties */ |
8112 | if (gm->props.selection_method[0]) { | |
8113 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8114 | } | |
8115 | ||
18ac06d3 SH |
8116 | id_pool_destroy(bucket_ids); |
8117 | return b; | |
8118 | } | |
8119 | ||
d4b1d0ca | 8120 | static void |
9dd30b05 BP |
8121 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8122 | { | |
d4b1d0ca SH |
8123 | const char *opt_version; |
8124 | const char *version; | |
8125 | const char *cmd_str; | |
8126 | ||
8127 | switch (cmd) { | |
8128 | case OFPGC15_ADD: | |
8129 | case OFPGC15_MODIFY: | |
8130 | case OFPGC15_DELETE: | |
8131 | version = "1.1"; | |
8132 | opt_version = "11"; | |
8133 | break; | |
8134 | ||
8135 | case OFPGC15_INSERT_BUCKET: | |
8136 | case OFPGC15_REMOVE_BUCKET: | |
8137 | version = "1.5"; | |
8138 | opt_version = "15"; | |
9dd30b05 | 8139 | break; |
d4b1d0ca SH |
8140 | |
8141 | default: | |
8142 | OVS_NOT_REACHED(); | |
8143 | } | |
8144 | ||
8145 | switch (cmd) { | |
8146 | case OFPGC15_ADD: | |
8147 | cmd_str = "add-group"; | |
8148 | break; | |
8149 | ||
8150 | case OFPGC15_MODIFY: | |
8151 | cmd_str = "mod-group"; | |
8152 | break; | |
8153 | ||
8154 | case OFPGC15_DELETE: | |
8155 | cmd_str = "del-group"; | |
8156 | break; | |
8157 | ||
8158 | case OFPGC15_INSERT_BUCKET: | |
8159 | cmd_str = "insert-bucket"; | |
8160 | break; | |
8161 | ||
8162 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8163 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8164 | break; |
8165 | ||
8166 | default: | |
8167 | OVS_NOT_REACHED(); | |
8168 | } | |
8169 | ||
8170 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8171 | cmd_str, version, opt_version); | |
8172 | ||
8173 | } | |
8174 | ||
4498bea5 SH |
8175 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8176 | * 'ofp_version' and returns the message. */ | |
8177 | struct ofpbuf * | |
8178 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
8179 | const struct ofputil_group_mod *gm) | |
8180 | { | |
d4b1d0ca | 8181 | |
7395c052 | 8182 | switch (ofp_version) { |
d4b1d0ca SH |
8183 | case OFP10_VERSION: |
8184 | bad_group_cmd(gm->command); | |
7395c052 NZ |
8185 | |
8186 | case OFP11_VERSION: | |
8187 | case OFP12_VERSION: | |
c37c0382 AC |
8188 | case OFP13_VERSION: |
8189 | case OFP14_VERSION: | |
d4b1d0ca SH |
8190 | if (gm->command > OFPGC11_DELETE) { |
8191 | bad_group_cmd(gm->command); | |
8192 | } | |
4498bea5 | 8193 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 8194 | |
18ac06d3 SH |
8195 | case OFP15_VERSION: |
8196 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
8197 | ||
7395c052 | 8198 | default: |
428b2edd | 8199 | OVS_NOT_REACHED(); |
7395c052 | 8200 | } |
7395c052 NZ |
8201 | } |
8202 | ||
aead63f2 SH |
8203 | static enum ofperr |
8204 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8205 | struct ofputil_group_mod *gm) | |
8206 | { | |
8207 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 8208 | enum ofperr error; |
aead63f2 SH |
8209 | |
8210 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8211 | gm->command = ntohs(ogm->command); | |
8212 | gm->type = ogm->type; | |
8213 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8214 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 8215 | |
6fd6ed71 | 8216 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
8217 | &gm->buckets); |
8218 | ||
8219 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
8220 | if (!error | |
8221 | && ofp_version >= OFP13_VERSION | |
8222 | && gm->command == OFPGC11_DELETE | |
8223 | && !list_is_empty(&gm->buckets)) { | |
8224 | error = OFPERR_OFPGMFC_INVALID_GROUP; | |
8225 | } | |
8226 | ||
8227 | return error; | |
aead63f2 SH |
8228 | } |
8229 | ||
18ac06d3 SH |
8230 | static enum ofperr |
8231 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8232 | struct ofputil_group_mod *gm) | |
8233 | { | |
8234 | const struct ofp15_group_mod *ogm; | |
8235 | uint16_t bucket_list_len; | |
8236 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8237 | ||
8238 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8239 | gm->command = ntohs(ogm->command); | |
8240 | gm->type = ogm->type; | |
8241 | gm->group_id = ntohl(ogm->group_id); | |
8242 | ||
8243 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8244 | switch (gm->command) { | |
8245 | case OFPGC15_REMOVE_BUCKET: | |
8246 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8247 | error = 0; | |
8248 | } | |
8249 | /* Fall through */ | |
8250 | case OFPGC15_INSERT_BUCKET: | |
8251 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8252 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8253 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8254 | error = 0; | |
8255 | } | |
8256 | break; | |
8257 | ||
8258 | case OFPGC11_ADD: | |
8259 | case OFPGC11_MODIFY: | |
8260 | case OFPGC11_DELETE: | |
8261 | default: | |
8262 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8263 | error = 0; | |
8264 | } | |
8265 | break; | |
8266 | } | |
8267 | if (error) { | |
8268 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8269 | "group command bucket id (%u) is out of range", | |
8270 | gm->command_bucket_id); | |
8271 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8272 | } | |
8273 | ||
79870963 | 8274 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a SH |
8275 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
8276 | &gm->buckets); | |
8277 | if (error) { | |
8278 | return error; | |
18ac06d3 SH |
8279 | } |
8280 | ||
bc65c25a SH |
8281 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
8282 | msg->size); | |
18ac06d3 SH |
8283 | } |
8284 | ||
7395c052 NZ |
8285 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8286 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8287 | enum ofperr | |
8288 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8289 | struct ofputil_group_mod *gm) | |
8290 | { | |
aead63f2 | 8291 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8292 | struct ofpbuf msg; |
e57681e5 SH |
8293 | struct ofputil_bucket *bucket; |
8294 | enum ofperr err; | |
7395c052 NZ |
8295 | |
8296 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8297 | ofpraw_pull_assert(&msg); | |
8298 | ||
bc65c25a SH |
8299 | ofputil_init_group_properties(&gm->props); |
8300 | ||
aead63f2 SH |
8301 | switch (ofp_version) |
8302 | { | |
8303 | case OFP11_VERSION: | |
8304 | case OFP12_VERSION: | |
8305 | case OFP13_VERSION: | |
8306 | case OFP14_VERSION: | |
aead63f2 SH |
8307 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8308 | break; | |
8309 | ||
18ac06d3 SH |
8310 | case OFP15_VERSION: |
8311 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8312 | break; | |
8313 | ||
aead63f2 SH |
8314 | case OFP10_VERSION: |
8315 | default: | |
8316 | OVS_NOT_REACHED(); | |
8317 | } | |
7395c052 | 8318 | |
e57681e5 SH |
8319 | if (err) { |
8320 | return err; | |
8321 | } | |
8322 | ||
e1799eb7 SH |
8323 | switch (gm->type) { |
8324 | case OFPGT11_INDIRECT: | |
8325 | if (!list_is_singleton(&gm->buckets)) { | |
36be51c5 | 8326 | return OFPERR_OFPGMFC_OUT_OF_BUCKETS; |
e1799eb7 SH |
8327 | } |
8328 | break; | |
8329 | case OFPGT11_ALL: | |
8330 | case OFPGT11_SELECT: | |
8331 | case OFPGT11_FF: | |
8332 | break; | |
8333 | default: | |
8334 | OVS_NOT_REACHED(); | |
65075b99 SH |
8335 | } |
8336 | ||
8337 | switch (gm->command) { | |
8338 | case OFPGC11_ADD: | |
8339 | case OFPGC11_MODIFY: | |
8340 | case OFPGC11_DELETE: | |
8341 | case OFPGC15_INSERT_BUCKET: | |
8342 | break; | |
8343 | case OFPGC15_REMOVE_BUCKET: | |
8344 | if (!list_is_empty(&gm->buckets)) { | |
8345 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8346 | } | |
8347 | break; | |
8348 | default: | |
8349 | OVS_NOT_REACHED(); | |
e1799eb7 SH |
8350 | } |
8351 | ||
e57681e5 SH |
8352 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
8353 | switch (gm->type) { | |
8354 | case OFPGT11_ALL: | |
8355 | case OFPGT11_INDIRECT: | |
8356 | if (ofputil_bucket_has_liveness(bucket)) { | |
8357 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8358 | } | |
8359 | break; | |
8360 | case OFPGT11_SELECT: | |
8361 | break; | |
8362 | case OFPGT11_FF: | |
8363 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8364 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8365 | } | |
8366 | break; | |
8367 | default: | |
428b2edd | 8368 | OVS_NOT_REACHED(); |
e57681e5 SH |
8369 | } |
8370 | } | |
8371 | ||
8372 | return 0; | |
7395c052 NZ |
8373 | } |
8374 | ||
64626975 SH |
8375 | /* Parse a queue status request message into 'oqsr'. |
8376 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8377 | enum ofperr | |
8378 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8379 | struct ofputil_queue_stats_request *oqsr) | |
8380 | { | |
8381 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8382 | case OFP15_VERSION: |
c37c0382 | 8383 | case OFP14_VERSION: |
2e1ae200 | 8384 | case OFP13_VERSION: |
64626975 SH |
8385 | case OFP12_VERSION: |
8386 | case OFP11_VERSION: { | |
8387 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8388 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8389 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8390 | } | |
8391 | ||
8392 | case OFP10_VERSION: { | |
7f05e7ab JR |
8393 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8394 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8395 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8396 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
8397 | if (oqsr->port_no == OFPP_ALL) { | |
8398 | oqsr->port_no = OFPP_ANY; | |
8399 | } | |
64626975 SH |
8400 | return 0; |
8401 | } | |
8402 | ||
8403 | default: | |
428b2edd | 8404 | OVS_NOT_REACHED(); |
64626975 SH |
8405 | } |
8406 | } | |
8407 | ||
0746a84f BP |
8408 | /* Encode a queue stats request for 'oqsr', the encoded message |
8409 | * will be for OpenFlow version 'ofp_version'. Returns message | |
8410 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
8411 | struct ofpbuf * |
8412 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
8413 | const struct ofputil_queue_stats_request *oqsr) | |
8414 | { | |
8415 | struct ofpbuf *request; | |
8416 | ||
8417 | switch (ofp_version) { | |
8418 | case OFP11_VERSION: | |
2e1ae200 | 8419 | case OFP12_VERSION: |
c37c0382 | 8420 | case OFP13_VERSION: |
42dccab5 BP |
8421 | case OFP14_VERSION: |
8422 | case OFP15_VERSION: { | |
64626975 SH |
8423 | struct ofp11_queue_stats_request *req; |
8424 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
8425 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8426 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
8427 | req->queue_id = htonl(oqsr->queue_id); | |
8428 | break; | |
8429 | } | |
8430 | case OFP10_VERSION: { | |
8431 | struct ofp10_queue_stats_request *req; | |
8432 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
8433 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 8434 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
8435 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
8436 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
8437 | req->queue_id = htonl(oqsr->queue_id); |
8438 | break; | |
8439 | } | |
8440 | default: | |
428b2edd | 8441 | OVS_NOT_REACHED(); |
64626975 SH |
8442 | } |
8443 | ||
8444 | return request; | |
8445 | } | |
8446 | ||
8447 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
8448 | * message 'oh'. */ | |
8449 | size_t | |
8450 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
8451 | { | |
1bb2cdbe | 8452 | struct ofputil_queue_stats qs; |
64626975 | 8453 | struct ofpbuf b; |
1bb2cdbe | 8454 | size_t n = 0; |
64626975 SH |
8455 | |
8456 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8457 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
8458 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
8459 | n++; | |
8460 | } | |
8461 | return n; | |
64626975 SH |
8462 | } |
8463 | ||
8464 | static enum ofperr | |
8465 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
8466 | const struct ofp10_queue_stats *qs10) | |
8467 | { | |
4e022ec0 | 8468 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 8469 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
8470 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
8471 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
8472 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
8473 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8474 | |
8475 | return 0; | |
8476 | } | |
8477 | ||
8478 | static enum ofperr | |
8479 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
8480 | const struct ofp11_queue_stats *qs11) | |
8481 | { | |
8482 | enum ofperr error; | |
8483 | ||
8484 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
8485 | if (error) { | |
8486 | return error; | |
8487 | } | |
8488 | ||
8489 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
8490 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
8491 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
8492 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
8493 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8494 | |
8495 | return 0; | |
8496 | } | |
8497 | ||
2e1ae200 JR |
8498 | static enum ofperr |
8499 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
8500 | const struct ofp13_queue_stats *qs13) | |
8501 | { | |
6dc34a0d | 8502 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 8503 | if (!error) { |
6dc34a0d BP |
8504 | oqs->duration_sec = ntohl(qs13->duration_sec); |
8505 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
8506 | } |
8507 | ||
8508 | return error; | |
8509 | } | |
8510 | ||
1bb2cdbe BP |
8511 | static enum ofperr |
8512 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
8513 | struct ofpbuf *msg) | |
8514 | { | |
8515 | const struct ofp14_queue_stats *qs14; | |
8516 | size_t len; | |
8517 | ||
8518 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
8519 | if (!qs14) { | |
8520 | return OFPERR_OFPBRC_BAD_LEN; | |
8521 | } | |
8522 | ||
8523 | len = ntohs(qs14->length); | |
6fd6ed71 | 8524 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
8525 | return OFPERR_OFPBRC_BAD_LEN; |
8526 | } | |
8527 | ofpbuf_pull(msg, len - sizeof *qs14); | |
8528 | ||
8529 | /* No properties yet defined, so ignore them for now. */ | |
8530 | ||
8531 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
8532 | } | |
8533 | ||
64626975 SH |
8534 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
8535 | * ofputil_queue_stats in 'qs'. | |
8536 | * | |
8537 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
8538 | * message. Calling this function multiple times for a single 'msg' iterates | |
8539 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8540 | * null and not modify them between calls. | |
8541 | * | |
8542 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8543 | * otherwise a positive errno value. */ | |
8544 | int | |
8545 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
8546 | { | |
8547 | enum ofperr error; | |
8548 | enum ofpraw raw; | |
8549 | ||
6fd6ed71 | 8550 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
8551 | : ofpraw_pull(&raw, msg)); |
8552 | if (error) { | |
8553 | return error; | |
8554 | } | |
8555 | ||
6fd6ed71 | 8556 | if (!msg->size) { |
64626975 | 8557 | return EOF; |
1bb2cdbe BP |
8558 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
8559 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
8560 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
8561 | const struct ofp13_queue_stats *qs13; | |
8562 | ||
8563 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
8564 | if (!qs13) { | |
8565 | goto bad_len; | |
8566 | } | |
8567 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
8568 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
8569 | const struct ofp11_queue_stats *qs11; | |
8570 | ||
8571 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
8572 | if (!qs11) { | |
2e1ae200 | 8573 | goto bad_len; |
64626975 SH |
8574 | } |
8575 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
8576 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
8577 | const struct ofp10_queue_stats *qs10; | |
8578 | ||
8579 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
8580 | if (!qs10) { | |
2e1ae200 | 8581 | goto bad_len; |
64626975 SH |
8582 | } |
8583 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
8584 | } else { | |
428b2edd | 8585 | OVS_NOT_REACHED(); |
64626975 | 8586 | } |
2e1ae200 JR |
8587 | |
8588 | bad_len: | |
437d0d22 | 8589 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 8590 | "bytes at end", msg->size); |
2e1ae200 | 8591 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
8592 | } |
8593 | ||
8594 | static void | |
8595 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
8596 | struct ofp10_queue_stats *qs10) | |
8597 | { | |
4e022ec0 | 8598 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
8599 | memset(qs10->pad, 0, sizeof qs10->pad); |
8600 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
8601 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
8602 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
8603 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
8604 | } |
8605 | ||
8606 | static void | |
8607 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
8608 | struct ofp11_queue_stats *qs11) | |
8609 | { | |
8610 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
8611 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
8612 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
8613 | qs11->tx_packets = htonll(oqs->tx_packets); | |
8614 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
8615 | } |
8616 | ||
2e1ae200 JR |
8617 | static void |
8618 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
8619 | struct ofp13_queue_stats *qs13) | |
8620 | { | |
8621 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
8622 | if (oqs->duration_sec != UINT32_MAX) { |
8623 | qs13->duration_sec = htonl(oqs->duration_sec); | |
8624 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
8625 | } else { | |
b8266395 BP |
8626 | qs13->duration_sec = OVS_BE32_MAX; |
8627 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 8628 | } |
2e1ae200 JR |
8629 | } |
8630 | ||
1bb2cdbe BP |
8631 | static void |
8632 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
8633 | struct ofp14_queue_stats *qs14) | |
8634 | { | |
8635 | qs14->length = htons(sizeof *qs14); | |
8636 | memset(qs14->pad, 0, sizeof qs14->pad); | |
8637 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
8638 | } | |
8639 | ||
8640 | ||
64626975 SH |
8641 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
8642 | void | |
ca6ba700 | 8643 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
8644 | const struct ofputil_queue_stats *oqs) |
8645 | { | |
e28ac5cf | 8646 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
8647 | case OFP13_VERSION: { |
8648 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
8649 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
8650 | break; | |
8651 | } | |
8652 | ||
64626975 SH |
8653 | case OFP12_VERSION: |
8654 | case OFP11_VERSION: { | |
2e1ae200 | 8655 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
8656 | ofputil_queue_stats_to_ofp11(oqs, reply); |
8657 | break; | |
8658 | } | |
8659 | ||
8660 | case OFP10_VERSION: { | |
2e1ae200 | 8661 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
8662 | ofputil_queue_stats_to_ofp10(oqs, reply); |
8663 | break; | |
8664 | } | |
8665 | ||
42dccab5 BP |
8666 | case OFP14_VERSION: |
8667 | case OFP15_VERSION: { | |
1bb2cdbe BP |
8668 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
8669 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 8670 | break; |
1bb2cdbe | 8671 | } |
c37c0382 | 8672 | |
64626975 | 8673 | default: |
428b2edd | 8674 | OVS_NOT_REACHED(); |
64626975 SH |
8675 | } |
8676 | } | |
777af88d AC |
8677 | |
8678 | enum ofperr | |
8679 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
8680 | struct ofputil_bundle_ctrl_msg *msg) | |
8681 | { | |
8682 | struct ofpbuf b; | |
8683 | enum ofpraw raw; | |
8684 | const struct ofp14_bundle_ctrl_msg *m; | |
8685 | ||
8686 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8687 | raw = ofpraw_pull_assert(&b); | |
8688 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
8689 | ||
6fd6ed71 | 8690 | m = b.msg; |
777af88d AC |
8691 | msg->bundle_id = ntohl(m->bundle_id); |
8692 | msg->type = ntohs(m->type); | |
8693 | msg->flags = ntohs(m->flags); | |
8694 | ||
8695 | return 0; | |
8696 | } | |
8697 | ||
db5076ee JR |
8698 | struct ofpbuf * |
8699 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
8700 | struct ofputil_bundle_ctrl_msg *bc) | |
8701 | { | |
8702 | struct ofpbuf *request; | |
8703 | struct ofp14_bundle_ctrl_msg *m; | |
8704 | ||
8705 | switch (ofp_version) { | |
8706 | case OFP10_VERSION: | |
8707 | case OFP11_VERSION: | |
8708 | case OFP12_VERSION: | |
8709 | case OFP13_VERSION: | |
8710 | ovs_fatal(0, "bundles need OpenFlow 1.4 or later " | |
8711 | "(\'-O OpenFlow14\')"); | |
8712 | case OFP14_VERSION: | |
8713 | case OFP15_VERSION: | |
8714 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
8715 | m = ofpbuf_put_zeros(request, sizeof *m); | |
8716 | ||
8717 | m->bundle_id = htonl(bc->bundle_id); | |
8718 | m->type = htons(bc->type); | |
8719 | m->flags = htons(bc->flags); | |
8720 | break; | |
8721 | default: | |
8722 | OVS_NOT_REACHED(); | |
8723 | } | |
8724 | ||
8725 | return request; | |
8726 | } | |
8727 | ||
777af88d AC |
8728 | struct ofpbuf * |
8729 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
8730 | struct ofputil_bundle_ctrl_msg *msg) | |
8731 | { | |
8732 | struct ofpbuf *buf; | |
8733 | struct ofp14_bundle_ctrl_msg *m; | |
8734 | ||
8735 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
8736 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
8737 | ||
8738 | m->bundle_id = htonl(msg->bundle_id); | |
8739 | m->type = htons(msg->type); | |
8740 | m->flags = htons(msg->flags); | |
8741 | ||
8742 | return buf; | |
8743 | } | |
8744 | ||
c25ce22d JR |
8745 | /* Return true for bundlable state change requests, false for other messages. |
8746 | */ | |
8747 | static bool | |
8748 | ofputil_is_bundlable(enum ofptype type) | |
8749 | { | |
8750 | switch (type) { | |
8751 | /* Minimum required by OpenFlow 1.4. */ | |
8752 | case OFPTYPE_PORT_MOD: | |
8753 | case OFPTYPE_FLOW_MOD: | |
8754 | return true; | |
8755 | ||
8756 | /* Nice to have later. */ | |
8757 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
8758 | case OFPTYPE_GROUP_MOD: | |
8759 | case OFPTYPE_TABLE_MOD: | |
8760 | case OFPTYPE_METER_MOD: | |
8761 | case OFPTYPE_PACKET_OUT: | |
8762 | ||
8763 | /* Not to be bundlable. */ | |
8764 | case OFPTYPE_ECHO_REQUEST: | |
8765 | case OFPTYPE_FEATURES_REQUEST: | |
8766 | case OFPTYPE_GET_CONFIG_REQUEST: | |
8767 | case OFPTYPE_SET_CONFIG: | |
8768 | case OFPTYPE_BARRIER_REQUEST: | |
8769 | case OFPTYPE_ROLE_REQUEST: | |
8770 | case OFPTYPE_ECHO_REPLY: | |
8771 | case OFPTYPE_SET_FLOW_FORMAT: | |
8772 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
8773 | case OFPTYPE_SET_CONTROLLER_ID: | |
8774 | case OFPTYPE_FLOW_AGE: | |
8775 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
8776 | case OFPTYPE_SET_ASYNC_CONFIG: | |
8777 | case OFPTYPE_GET_ASYNC_REQUEST: | |
8778 | case OFPTYPE_DESC_STATS_REQUEST: | |
8779 | case OFPTYPE_FLOW_STATS_REQUEST: | |
8780 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
8781 | case OFPTYPE_TABLE_STATS_REQUEST: | |
8782 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
8783 | case OFPTYPE_PORT_STATS_REQUEST: | |
8784 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
8785 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
8786 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
8787 | case OFPTYPE_METER_STATS_REQUEST: | |
8788 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
8789 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
8790 | case OFPTYPE_GROUP_STATS_REQUEST: | |
8791 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
8792 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
8793 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
8794 | case OFPTYPE_BUNDLE_CONTROL: | |
8795 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
8796 | case OFPTYPE_HELLO: | |
8797 | case OFPTYPE_ERROR: | |
8798 | case OFPTYPE_FEATURES_REPLY: | |
8799 | case OFPTYPE_GET_CONFIG_REPLY: | |
8800 | case OFPTYPE_PACKET_IN: | |
8801 | case OFPTYPE_FLOW_REMOVED: | |
8802 | case OFPTYPE_PORT_STATUS: | |
8803 | case OFPTYPE_BARRIER_REPLY: | |
8804 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
8805 | case OFPTYPE_DESC_STATS_REPLY: | |
8806 | case OFPTYPE_FLOW_STATS_REPLY: | |
8807 | case OFPTYPE_QUEUE_STATS_REPLY: | |
8808 | case OFPTYPE_PORT_STATS_REPLY: | |
8809 | case OFPTYPE_TABLE_STATS_REPLY: | |
8810 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
8811 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
8812 | case OFPTYPE_ROLE_REPLY: | |
8813 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
8814 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
8815 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
8816 | case OFPTYPE_GET_ASYNC_REPLY: | |
8817 | case OFPTYPE_GROUP_STATS_REPLY: | |
8818 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
8819 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
8820 | case OFPTYPE_METER_STATS_REPLY: | |
8821 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
8822 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
8823 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
8824 | case OFPTYPE_ROLE_STATUS: | |
8825 | break; | |
8826 | } | |
8827 | ||
8828 | return false; | |
8829 | } | |
8830 | ||
777af88d AC |
8831 | enum ofperr |
8832 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 JR |
8833 | struct ofputil_bundle_add_msg *msg, |
8834 | enum ofptype *type_ptr) | |
777af88d AC |
8835 | { |
8836 | const struct ofp14_bundle_ctrl_msg *m; | |
8837 | struct ofpbuf b; | |
8838 | enum ofpraw raw; | |
8839 | size_t inner_len; | |
c25ce22d JR |
8840 | enum ofperr error; |
8841 | enum ofptype type; | |
777af88d AC |
8842 | |
8843 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8844 | raw = ofpraw_pull_assert(&b); | |
8845 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
8846 | ||
8847 | m = ofpbuf_pull(&b, sizeof *m); | |
8848 | msg->bundle_id = ntohl(m->bundle_id); | |
8849 | msg->flags = ntohs(m->flags); | |
8850 | ||
6fd6ed71 | 8851 | msg->msg = b.data; |
777af88d | 8852 | inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 8853 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
8854 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
8855 | } | |
be6f6393 JR |
8856 | if (msg->msg->xid != oh->xid) { |
8857 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
8858 | } | |
777af88d | 8859 | |
c25ce22d | 8860 | /* Reject unbundlable messages. */ |
7ac27a04 JR |
8861 | if (!type_ptr) { |
8862 | type_ptr = &type; | |
8863 | } | |
8864 | error = ofptype_decode(type_ptr, msg->msg); | |
c25ce22d JR |
8865 | if (error) { |
8866 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
8867 | "message is unparsable (%s)", ofperr_get_name(error)); | |
8868 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
8869 | } | |
8870 | ||
7ac27a04 | 8871 | if (!ofputil_is_bundlable(*type_ptr)) { |
c25ce22d JR |
8872 | return OFPERR_OFPBFC_MSG_UNSUP; |
8873 | } | |
8874 | ||
777af88d AC |
8875 | return 0; |
8876 | } | |
8877 | ||
8878 | struct ofpbuf * | |
8879 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
8880 | struct ofputil_bundle_add_msg *msg) | |
8881 | { | |
8882 | struct ofpbuf *request; | |
8883 | struct ofp14_bundle_ctrl_msg *m; | |
8884 | ||
7b3dca89 JR |
8885 | /* Must use the same xid as the embedded message. */ |
8886 | request = ofpraw_alloc_xid(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
8887 | msg->msg->xid, 0); | |
777af88d AC |
8888 | m = ofpbuf_put_zeros(request, sizeof *m); |
8889 | ||
8890 | m->bundle_id = htonl(msg->bundle_id); | |
8891 | m->flags = htons(msg->flags); | |
8892 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
8893 | ||
8894 | return request; | |
8895 | } |