]>
Commit | Line | Data |
---|---|---|
fa37b408 | 1 | /* |
c37c0382 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 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" | |
41 | #include "packets.h" | |
42 | #include "random.h" | |
4ffd1b43 | 43 | #include "unaligned.h" |
e41a9130 | 44 | #include "type-props.h" |
5136ce49 | 45 | #include "vlog.h" |
5deff5aa | 46 | #include "bitmap.h" |
fa37b408 | 47 | |
d98e6007 | 48 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
49 | |
50 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
51 | * in the peer and so there's not much point in showing a lot of them. */ | |
52 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
53 | ||
3c1bb396 BP |
54 | static enum ofputil_table_miss ofputil_table_miss_from_config( |
55 | ovs_be32 config_, enum ofp_version); | |
56 | ||
9a4eddbb BP |
57 | struct ofp_prop_header { |
58 | ovs_be16 type; | |
59 | ovs_be16 len; | |
60 | }; | |
61 | ||
62 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning | |
63 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
64 | * nonnull, the entire property, including the header, in '*property'. Returns | |
72b25867 BP |
65 | * 0 if successful, otherwise an error code. |
66 | * | |
67 | * This function pulls the property's stated size padded out to a multiple of | |
68 | * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so | |
69 | * you can use ofputil_pull_property() for that case. */ | |
9a4eddbb | 70 | static enum ofperr |
72b25867 BP |
71 | ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property, |
72 | unsigned int alignment, uint16_t *typep) | |
9a4eddbb BP |
73 | { |
74 | struct ofp_prop_header *oph; | |
72b25867 | 75 | unsigned int padded_len; |
9a4eddbb BP |
76 | unsigned int len; |
77 | ||
78 | if (ofpbuf_size(msg) < sizeof *oph) { | |
79 | return OFPERR_OFPBPC_BAD_LEN; | |
80 | } | |
81 | ||
82 | oph = ofpbuf_data(msg); | |
83 | len = ntohs(oph->len); | |
72b25867 BP |
84 | padded_len = ROUND_UP(len, alignment); |
85 | if (len < sizeof *oph || padded_len > ofpbuf_size(msg)) { | |
9a4eddbb BP |
86 | return OFPERR_OFPBPC_BAD_LEN; |
87 | } | |
88 | ||
89 | *typep = ntohs(oph->type); | |
90 | if (property) { | |
91 | ofpbuf_use_const(property, ofpbuf_data(msg), len); | |
92 | } | |
72b25867 | 93 | ofpbuf_pull(msg, padded_len); |
9a4eddbb BP |
94 | return 0; |
95 | } | |
96 | ||
72b25867 BP |
97 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
98 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
99 | * nonnull, the entire property, including the header, in '*property'. Returns | |
100 | * 0 if successful, otherwise an error code. | |
101 | * | |
102 | * This function pulls the property's stated size padded out to a multiple of | |
103 | * 8 bytes, which is the common case for OpenFlow properties. */ | |
104 | static enum ofperr | |
105 | ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property, | |
106 | uint16_t *typep) | |
107 | { | |
108 | return ofputil_pull_property__(msg, property, 8, typep); | |
109 | } | |
110 | ||
9a4eddbb BP |
111 | static void PRINTF_FORMAT(2, 3) |
112 | log_property(bool loose, const char *message, ...) | |
113 | { | |
114 | enum vlog_level level = loose ? VLL_DBG : VLL_WARN; | |
115 | if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) { | |
116 | va_list args; | |
117 | ||
118 | va_start(args, message); | |
119 | vlog_valist(THIS_MODULE, level, message, args); | |
120 | va_end(args); | |
121 | } | |
122 | } | |
8c3cc785 | 123 | |
3c4e10fb BP |
124 | static size_t |
125 | start_property(struct ofpbuf *msg, uint16_t type) | |
126 | { | |
127 | size_t start_ofs = ofpbuf_size(msg); | |
128 | struct ofp_prop_header *oph; | |
129 | ||
130 | oph = ofpbuf_put_uninit(msg, sizeof *oph); | |
131 | oph->type = htons(type); | |
132 | oph->len = htons(4); /* May be updated later by end_property(). */ | |
133 | return start_ofs; | |
134 | } | |
135 | ||
136 | static void | |
137 | end_property(struct ofpbuf *msg, size_t start_ofs) | |
138 | { | |
139 | struct ofp_prop_header *oph; | |
140 | ||
141 | oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph); | |
142 | oph->len = htons(ofpbuf_size(msg) - start_ofs); | |
143 | ofpbuf_padto(msg, ROUND_UP(ofpbuf_size(msg), 8)); | |
144 | } | |
145 | ||
146 | static void | |
147 | put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap) | |
148 | { | |
149 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
150 | start_property(msg, rightmost_1bit_idx(bitmap)); | |
151 | } | |
152 | } | |
153 | ||
0596e897 BP |
154 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
155 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
156 | * is wildcarded. | |
157 | * | |
158 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
159 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
160 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
161 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
162 | * wildcarded. */ | |
163 | ovs_be32 | |
164 | ofputil_wcbits_to_netmask(int wcbits) | |
165 | { | |
166 | wcbits &= 0x3f; | |
167 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
168 | } | |
169 | ||
170 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
171 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
172 | * between 0 and 32 inclusive. | |
173 | * | |
174 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
175 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
176 | int |
177 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
178 | { | |
aad29cd1 | 179 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
180 | } |
181 | ||
eec25dc1 | 182 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 183 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
184 | * responsibility to handle the special case where the flow match's dl_vlan is |
185 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 186 | void |
eec25dc1 | 187 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 188 | { |
c61f3870 | 189 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 28); |
a877206f | 190 | |
81a76618 | 191 | /* Initialize most of wc. */ |
f9ba8dad | 192 | flow_wildcards_init_catchall(wc); |
bad68a99 | 193 | |
0bdc4bec | 194 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 195 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 196 | } |
5d9499c4 BP |
197 | |
198 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 199 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 200 | } |
7257b535 | 201 | |
851d3105 | 202 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 203 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 204 | } |
26720e24 BP |
205 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
206 | >> OFPFW10_NW_SRC_SHIFT); | |
207 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
208 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 209 | |
eec25dc1 | 210 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 211 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 212 | } |
eec25dc1 | 213 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 214 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
215 | } |
216 | ||
eec25dc1 | 217 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
26720e24 | 218 | memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN); |
73c0ce34 | 219 | } |
eec25dc1 | 220 | if (!(ofpfw & OFPFW10_DL_DST)) { |
26720e24 | 221 | memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN); |
d8ae4d67 | 222 | } |
e2170cff | 223 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 224 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 225 | } |
d8ae4d67 | 226 | |
eb6f28db | 227 | /* VLAN TCI mask. */ |
eec25dc1 | 228 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 229 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 230 | } |
eec25dc1 | 231 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 232 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
233 | } |
234 | } | |
235 | ||
81a76618 | 236 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 237 | void |
81a76618 BP |
238 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
239 | struct match *match) | |
240 | { | |
241 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
242 | ||
243 | /* Initialize match->wc. */ | |
296e07ac | 244 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
245 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
246 | ||
247 | /* Initialize most of match->flow. */ | |
248 | match->flow.nw_src = ofmatch->nw_src; | |
249 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 250 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
251 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
252 | match->flow.tp_src = ofmatch->tp_src; | |
253 | match->flow.tp_dst = ofmatch->tp_dst; | |
254 | memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN); | |
255 | memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN); | |
256 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; | |
257 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 258 | |
66642cb4 | 259 | /* Translate VLANs. */ |
0c436519 | 260 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 261 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
262 | /* Match only packets without 802.1Q header. |
263 | * | |
eec25dc1 | 264 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 265 | * |
eec25dc1 | 266 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
267 | * because we can't have a specific PCP without an 802.1Q header. |
268 | * However, older versions of OVS treated this as matching packets | |
269 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
270 | match->flow.vlan_tci = htons(0); |
271 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
272 | } else { |
273 | ovs_be16 vid, pcp, tci; | |
bf062576 | 274 | uint16_t hpcp; |
47271d0d | 275 | |
81a76618 | 276 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
277 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
278 | pcp = htons(hpcp); | |
47271d0d | 279 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 280 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
281 | } |
282 | ||
d8ae4d67 | 283 | /* Clean up. */ |
81a76618 | 284 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
285 | } |
286 | ||
81a76618 | 287 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 288 | void |
81a76618 BP |
289 | ofputil_match_to_ofp10_match(const struct match *match, |
290 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 291 | { |
81a76618 | 292 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 293 | uint32_t ofpfw; |
d8ae4d67 | 294 | |
66642cb4 | 295 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 296 | ofpfw = 0; |
4e022ec0 | 297 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
298 | ofpfw |= OFPFW10_IN_PORT; |
299 | } | |
26720e24 | 300 | if (!wc->masks.dl_type) { |
27cafc5f BP |
301 | ofpfw |= OFPFW10_DL_TYPE; |
302 | } | |
26720e24 | 303 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
304 | ofpfw |= OFPFW10_NW_PROTO; |
305 | } | |
26720e24 | 306 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 307 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 308 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 309 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 310 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 311 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 312 | } |
26720e24 | 313 | if (!wc->masks.tp_src) { |
eec25dc1 | 314 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 315 | } |
26720e24 | 316 | if (!wc->masks.tp_dst) { |
eec25dc1 | 317 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 318 | } |
26720e24 | 319 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 320 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 321 | } |
26720e24 | 322 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 323 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 324 | } |
ff9d3826 | 325 | |
66642cb4 | 326 | /* Translate VLANs. */ |
81a76618 BP |
327 | ofmatch->dl_vlan = htons(0); |
328 | ofmatch->dl_vlan_pcp = 0; | |
329 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 330 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
331 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
332 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
333 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
41ca9a1e | 334 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 335 | } else { |
81a76618 | 336 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 337 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 338 | } else { |
81a76618 | 339 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
340 | } |
341 | ||
81a76618 | 342 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 343 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 344 | } else { |
81a76618 | 345 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
346 | } |
347 | } | |
348 | ||
349 | /* Compose most of the match structure. */ | |
81a76618 | 350 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 351 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
81a76618 BP |
352 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
353 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); | |
354 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); | |
355 | ofmatch->nw_src = match->flow.nw_src; | |
356 | ofmatch->nw_dst = match->flow.nw_dst; | |
357 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
358 | ofmatch->nw_proto = match->flow.nw_proto; | |
359 | ofmatch->tp_src = match->flow.tp_src; | |
360 | ofmatch->tp_dst = match->flow.tp_dst; | |
361 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
362 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
363 | } |
364 | ||
aa319503 | 365 | enum ofperr |
81a76618 BP |
366 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
367 | uint16_t *padded_match_len) | |
aa319503 | 368 | { |
1f317cb5 | 369 | struct ofp11_match_header *omh = ofpbuf_data(buf); |
36a16881 | 370 | uint16_t match_len; |
aa319503 | 371 | |
1f317cb5 | 372 | if (ofpbuf_size(buf) < sizeof *omh) { |
aa319503 BP |
373 | return OFPERR_OFPBMC_BAD_LEN; |
374 | } | |
375 | ||
36a16881 SH |
376 | match_len = ntohs(omh->length); |
377 | ||
aa319503 | 378 | switch (ntohs(omh->type)) { |
36a16881 SH |
379 | case OFPMT_STANDARD: { |
380 | struct ofp11_match *om; | |
381 | ||
1f317cb5 | 382 | if (match_len != sizeof *om || ofpbuf_size(buf) < sizeof *om) { |
aa319503 BP |
383 | return OFPERR_OFPBMC_BAD_LEN; |
384 | } | |
385 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
386 | if (padded_match_len) { |
387 | *padded_match_len = match_len; | |
388 | } | |
81a76618 | 389 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
390 | } |
391 | ||
392 | case OFPMT_OXM: | |
393 | if (padded_match_len) { | |
394 | *padded_match_len = ROUND_UP(match_len, 8); | |
395 | } | |
81a76618 | 396 | return oxm_pull_match(buf, match); |
aa319503 BP |
397 | |
398 | default: | |
399 | return OFPERR_OFPBMC_BAD_TYPE; | |
400 | } | |
401 | } | |
402 | ||
3f0f48cf YT |
403 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
404 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 405 | enum ofperr |
81a76618 BP |
406 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
407 | struct match *match) | |
410698cf | 408 | { |
81a76618 | 409 | uint16_t wc = ntohl(ofmatch->wildcards); |
410698cf BP |
410 | uint8_t dl_src_mask[ETH_ADDR_LEN]; |
411 | uint8_t dl_dst_mask[ETH_ADDR_LEN]; | |
8087f5ff | 412 | bool ipv4, arp, rarp; |
410698cf BP |
413 | int i; |
414 | ||
81a76618 | 415 | match_init_catchall(match); |
410698cf BP |
416 | |
417 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 418 | ofp_port_t ofp_port; |
410698cf BP |
419 | enum ofperr error; |
420 | ||
81a76618 | 421 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
422 | if (error) { |
423 | return OFPERR_OFPBMC_BAD_VALUE; | |
424 | } | |
81a76618 | 425 | match_set_in_port(match, ofp_port); |
410698cf BP |
426 | } |
427 | ||
428 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 429 | dl_src_mask[i] = ~ofmatch->dl_src_mask[i]; |
410698cf | 430 | } |
81a76618 | 431 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); |
410698cf BP |
432 | |
433 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 434 | dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i]; |
410698cf | 435 | } |
81a76618 | 436 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); |
410698cf BP |
437 | |
438 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 439 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 440 | /* Match only packets without a VLAN tag. */ |
81a76618 | 441 | match->flow.vlan_tci = htons(0); |
b8266395 | 442 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 443 | } else { |
81a76618 | 444 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 445 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
446 | match->flow.vlan_tci = htons(VLAN_CFI); |
447 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
448 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 449 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
450 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
451 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
452 | } else { |
453 | /* Invalid VID. */ | |
454 | return OFPERR_OFPBMC_BAD_VALUE; | |
455 | } | |
456 | ||
457 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
458 | if (ofmatch->dl_vlan_pcp <= 7) { |
459 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
460 | << VLAN_PCP_SHIFT); | |
461 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
462 | } else { |
463 | /* Invalid PCP. */ | |
464 | return OFPERR_OFPBMC_BAD_VALUE; | |
465 | } | |
466 | } | |
467 | } | |
468 | } | |
469 | ||
470 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
471 | match_set_dl_type(match, |
472 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
473 | } |
474 | ||
81a76618 BP |
475 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
476 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 477 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
478 | |
479 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 480 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
481 | /* Invalid TOS. */ |
482 | return OFPERR_OFPBMC_BAD_VALUE; | |
483 | } | |
484 | ||
81a76618 | 485 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
486 | } |
487 | ||
8087f5ff | 488 | if (ipv4 || arp || rarp) { |
410698cf | 489 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 490 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 491 | } |
81a76618 BP |
492 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
493 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
494 | } |
495 | ||
496 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
497 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 498 | switch (match->flow.nw_proto) { |
410698cf BP |
499 | case IPPROTO_ICMP: |
500 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
501 | * | |
502 | * The tp_src and tp_dst fields will be ignored unless the | |
503 | * network protocol specified is as TCP, UDP or SCTP. | |
504 | * | |
505 | * but I'm pretty sure we should support ICMP too, otherwise | |
506 | * that's a regression from OF1.0. */ | |
507 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 508 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 509 | if (icmp_type < 0x100) { |
81a76618 | 510 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
511 | } else { |
512 | return OFPERR_OFPBMC_BAD_FIELD; | |
513 | } | |
514 | } | |
515 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 516 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 517 | if (icmp_code < 0x100) { |
81a76618 | 518 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
519 | } else { |
520 | return OFPERR_OFPBMC_BAD_FIELD; | |
521 | } | |
522 | } | |
523 | break; | |
524 | ||
525 | case IPPROTO_TCP: | |
526 | case IPPROTO_UDP: | |
0d56eaf2 | 527 | case IPPROTO_SCTP: |
410698cf | 528 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 529 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
530 | } |
531 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 532 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
533 | } |
534 | break; | |
535 | ||
410698cf BP |
536 | default: |
537 | /* OF1.1 says explicitly to ignore this. */ | |
538 | break; | |
539 | } | |
540 | } | |
541 | ||
b02475c5 | 542 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 543 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 544 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
545 | } |
546 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 547 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
548 | } |
549 | } | |
550 | ||
81a76618 BP |
551 | match_set_metadata_masked(match, ofmatch->metadata, |
552 | ~ofmatch->metadata_mask); | |
410698cf BP |
553 | |
554 | return 0; | |
555 | } | |
556 | ||
81a76618 | 557 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 558 | void |
81a76618 BP |
559 | ofputil_match_to_ofp11_match(const struct match *match, |
560 | struct ofp11_match *ofmatch) | |
410698cf BP |
561 | { |
562 | uint32_t wc = 0; | |
563 | int i; | |
564 | ||
81a76618 BP |
565 | memset(ofmatch, 0, sizeof *ofmatch); |
566 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
567 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 568 | |
4e022ec0 | 569 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
570 | wc |= OFPFW11_IN_PORT; |
571 | } else { | |
4e022ec0 | 572 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
573 | } |
574 | ||
81a76618 | 575 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
410698cf | 576 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 577 | ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i]; |
410698cf BP |
578 | } |
579 | ||
81a76618 | 580 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); |
410698cf | 581 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 582 | ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i]; |
410698cf BP |
583 | } |
584 | ||
81a76618 | 585 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 586 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
587 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
588 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
589 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
590 | wc |= OFPFW11_DL_VLAN_PCP; |
591 | } else { | |
81a76618 BP |
592 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
593 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 594 | } else { |
81a76618 | 595 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
596 | } |
597 | ||
81a76618 | 598 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
599 | wc |= OFPFW11_DL_VLAN_PCP; |
600 | } else { | |
81a76618 | 601 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
602 | } |
603 | } | |
604 | ||
81a76618 | 605 | if (!match->wc.masks.dl_type) { |
410698cf BP |
606 | wc |= OFPFW11_DL_TYPE; |
607 | } else { | |
81a76618 | 608 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
609 | } |
610 | ||
81a76618 | 611 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
612 | wc |= OFPFW11_NW_TOS; |
613 | } else { | |
81a76618 | 614 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
615 | } |
616 | ||
81a76618 | 617 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
618 | wc |= OFPFW11_NW_PROTO; |
619 | } else { | |
81a76618 | 620 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
621 | } |
622 | ||
81a76618 BP |
623 | ofmatch->nw_src = match->flow.nw_src; |
624 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
625 | ofmatch->nw_dst = match->flow.nw_dst; | |
626 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 627 | |
81a76618 | 628 | if (!match->wc.masks.tp_src) { |
410698cf BP |
629 | wc |= OFPFW11_TP_SRC; |
630 | } else { | |
81a76618 | 631 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
632 | } |
633 | ||
81a76618 | 634 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
635 | wc |= OFPFW11_TP_DST; |
636 | } else { | |
81a76618 | 637 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
638 | } |
639 | ||
8bfd0fda | 640 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
641 | wc |= OFPFW11_MPLS_LABEL; |
642 | } else { | |
8bfd0fda BP |
643 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
644 | match->flow.mpls_lse[0])); | |
097d4939 JR |
645 | } |
646 | ||
8bfd0fda | 647 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
648 | wc |= OFPFW11_MPLS_TC; |
649 | } else { | |
8bfd0fda | 650 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 651 | } |
410698cf | 652 | |
81a76618 BP |
653 | ofmatch->metadata = match->flow.metadata; |
654 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 655 | |
81a76618 | 656 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
657 | } |
658 | ||
75fa58f8 BP |
659 | /* Returns the "typical" length of a match for 'protocol', for use in |
660 | * estimating space to preallocate. */ | |
661 | int | |
662 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
663 | { | |
664 | switch (protocol) { | |
665 | case OFPUTIL_P_OF10_STD: | |
666 | case OFPUTIL_P_OF10_STD_TID: | |
667 | return sizeof(struct ofp10_match); | |
668 | ||
669 | case OFPUTIL_P_OF10_NXM: | |
670 | case OFPUTIL_P_OF10_NXM_TID: | |
671 | return NXM_TYPICAL_LEN; | |
672 | ||
673 | case OFPUTIL_P_OF11_STD: | |
674 | return sizeof(struct ofp11_match); | |
675 | ||
676 | case OFPUTIL_P_OF12_OXM: | |
677 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 678 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 679 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
680 | return NXM_TYPICAL_LEN; |
681 | ||
682 | default: | |
428b2edd | 683 | OVS_NOT_REACHED(); |
75fa58f8 BP |
684 | } |
685 | } | |
686 | ||
687 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
688 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
689 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
690 | * in OpenFlow 1.1 or later. | |
691 | * | |
692 | * This function can cause 'b''s data to be reallocated. | |
693 | * | |
694 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
695 | * returns zero. */ | |
696 | int | |
697 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
698 | enum ofputil_protocol protocol) | |
699 | { | |
700 | switch (protocol) { | |
701 | case OFPUTIL_P_OF10_STD: | |
702 | case OFPUTIL_P_OF10_STD_TID: | |
703 | case OFPUTIL_P_OF10_NXM: | |
704 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 705 | OVS_NOT_REACHED(); |
75fa58f8 BP |
706 | |
707 | case OFPUTIL_P_OF11_STD: { | |
708 | struct ofp11_match *om; | |
709 | ||
710 | /* Make sure that no padding is needed. */ | |
711 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
712 | ||
713 | om = ofpbuf_put_uninit(b, sizeof *om); | |
714 | ofputil_match_to_ofp11_match(match, om); | |
715 | return sizeof *om; | |
716 | } | |
717 | ||
718 | case OFPUTIL_P_OF12_OXM: | |
719 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 720 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 721 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
722 | return oxm_put_match(b, match, |
723 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
724 | } |
725 | ||
428b2edd | 726 | OVS_NOT_REACHED(); |
75fa58f8 BP |
727 | } |
728 | ||
36956a7d | 729 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
730 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
731 | * structure. */ | |
36956a7d BP |
732 | ovs_be16 |
733 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
734 | { | |
735 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
736 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
737 | : flow_dl_type); | |
738 | } | |
739 | ||
eec25dc1 | 740 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
741 | * structure, returns the corresponding 'dl_type' value for use in struct |
742 | * flow. */ | |
743 | ovs_be16 | |
744 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
745 | { | |
746 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
747 | ? htons(FLOW_DL_TYPE_NONE) | |
748 | : ofp_dl_type); | |
749 | } | |
2e4f5fcf | 750 | \f |
27527aa0 | 751 | /* Protocols. */ |
7fa91113 | 752 | |
27527aa0 BP |
753 | struct proto_abbrev { |
754 | enum ofputil_protocol protocol; | |
755 | const char *name; | |
756 | }; | |
757 | ||
758 | /* Most users really don't care about some of the differences between | |
aa233d57 | 759 | * protocols. These abbreviations help with that. */ |
27527aa0 | 760 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
761 | { OFPUTIL_P_ANY, "any" }, |
762 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
763 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
764 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
765 | }; |
766 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
767 | ||
768 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 769 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 770 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 771 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 772 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 773 | OFPUTIL_P_OF11_STD, |
85813857 BP |
774 | OFPUTIL_P_OF10_NXM, |
775 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
776 | }; |
777 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
778 | ||
4f13da56 BP |
779 | /* Returns the set of ofputil_protocols that are supported with the given |
780 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
781 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
782 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 783 | enum ofputil_protocol |
4f13da56 | 784 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
785 | { |
786 | switch (version) { | |
2e3fa633 | 787 | case OFP10_VERSION: |
4f13da56 | 788 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
789 | case OFP11_VERSION: |
790 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 791 | case OFP12_VERSION: |
85813857 | 792 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
793 | case OFP13_VERSION: |
794 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
795 | case OFP14_VERSION: |
796 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
797 | case OFP15_VERSION: |
798 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
799 | default: |
800 | return 0; | |
27527aa0 BP |
801 | } |
802 | } | |
803 | ||
4f13da56 BP |
804 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
805 | * connection that has negotiated the given 'version'. 'version' should | |
806 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
807 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
808 | * outside the valid range. */ | |
809 | enum ofputil_protocol | |
810 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
811 | { | |
812 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
813 | } | |
814 | ||
44d3732d | 815 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 816 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 817 | enum ofp_version |
9e1fd49b BP |
818 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
819 | { | |
820 | switch (protocol) { | |
85813857 BP |
821 | case OFPUTIL_P_OF10_STD: |
822 | case OFPUTIL_P_OF10_STD_TID: | |
823 | case OFPUTIL_P_OF10_NXM: | |
824 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 825 | return OFP10_VERSION; |
75fa58f8 BP |
826 | case OFPUTIL_P_OF11_STD: |
827 | return OFP11_VERSION; | |
85813857 | 828 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 829 | return OFP12_VERSION; |
2e1ae200 JR |
830 | case OFPUTIL_P_OF13_OXM: |
831 | return OFP13_VERSION; | |
c37c0382 AC |
832 | case OFPUTIL_P_OF14_OXM: |
833 | return OFP14_VERSION; | |
42dccab5 BP |
834 | case OFPUTIL_P_OF15_OXM: |
835 | return OFP15_VERSION; | |
9e1fd49b BP |
836 | } |
837 | ||
428b2edd | 838 | OVS_NOT_REACHED(); |
9e1fd49b BP |
839 | } |
840 | ||
4f13da56 BP |
841 | /* Returns a bitmap of OpenFlow versions that are supported by at |
842 | * least one of the 'protocols'. */ | |
843 | uint32_t | |
844 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
845 | { | |
846 | uint32_t bitmap = 0; | |
847 | ||
848 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
849 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
850 | ||
851 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
852 | } | |
853 | ||
854 | return bitmap; | |
855 | } | |
856 | ||
857 | /* Returns the set of protocols that are supported on top of the | |
858 | * OpenFlow versions included in 'bitmap'. */ | |
859 | enum ofputil_protocol | |
860 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
861 | { | |
862 | enum ofputil_protocol protocols = 0; | |
863 | ||
864 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
865 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
866 | ||
867 | protocols |= ofputil_protocols_from_ofp_version(version); | |
868 | } | |
869 | ||
870 | return protocols; | |
871 | } | |
872 | ||
27527aa0 BP |
873 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
874 | * otherwise. */ | |
7fa91113 | 875 | bool |
27527aa0 | 876 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 877 | { |
27527aa0 BP |
878 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
879 | } | |
880 | ||
881 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
882 | * extension turned on or off if 'enable' is true or false, respectively. | |
883 | * | |
884 | * This extension is only useful for protocols whose "standard" version does | |
885 | * not allow specific tables to be modified. In particular, this is true of | |
886 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
887 | * specifies a table ID and so there is no need for such an extension. When | |
888 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
889 | * extension, this function just returns its 'protocol' argument unchanged | |
890 | * regardless of the value of 'enable'. */ | |
891 | enum ofputil_protocol | |
892 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
893 | { | |
894 | switch (protocol) { | |
85813857 BP |
895 | case OFPUTIL_P_OF10_STD: |
896 | case OFPUTIL_P_OF10_STD_TID: | |
897 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 898 | |
85813857 BP |
899 | case OFPUTIL_P_OF10_NXM: |
900 | case OFPUTIL_P_OF10_NXM_TID: | |
901 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 902 | |
75fa58f8 BP |
903 | case OFPUTIL_P_OF11_STD: |
904 | return OFPUTIL_P_OF11_STD; | |
905 | ||
85813857 BP |
906 | case OFPUTIL_P_OF12_OXM: |
907 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 908 | |
2e1ae200 JR |
909 | case OFPUTIL_P_OF13_OXM: |
910 | return OFPUTIL_P_OF13_OXM; | |
911 | ||
c37c0382 AC |
912 | case OFPUTIL_P_OF14_OXM: |
913 | return OFPUTIL_P_OF14_OXM; | |
914 | ||
42dccab5 BP |
915 | case OFPUTIL_P_OF15_OXM: |
916 | return OFPUTIL_P_OF15_OXM; | |
917 | ||
27527aa0 | 918 | default: |
428b2edd | 919 | OVS_NOT_REACHED(); |
7fa91113 | 920 | } |
27527aa0 | 921 | } |
7fa91113 | 922 | |
27527aa0 BP |
923 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
924 | * some extension to a standard protocol version, the return value is the | |
925 | * standard version of that protocol without any extension. If 'protocol' is a | |
926 | * standard protocol version, returns 'protocol' unchanged. */ | |
927 | enum ofputil_protocol | |
928 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
929 | { | |
930 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
931 | } |
932 | ||
27527aa0 BP |
933 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
934 | enum ofputil_protocol | |
935 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
936 | enum ofputil_protocol new_base) | |
7fa91113 | 937 | { |
27527aa0 BP |
938 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
939 | ||
940 | switch (new_base) { | |
85813857 BP |
941 | case OFPUTIL_P_OF10_STD: |
942 | case OFPUTIL_P_OF10_STD_TID: | |
943 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 944 | |
85813857 BP |
945 | case OFPUTIL_P_OF10_NXM: |
946 | case OFPUTIL_P_OF10_NXM_TID: | |
947 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 948 | |
75fa58f8 BP |
949 | case OFPUTIL_P_OF11_STD: |
950 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
951 | ||
85813857 BP |
952 | case OFPUTIL_P_OF12_OXM: |
953 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 954 | |
2e1ae200 JR |
955 | case OFPUTIL_P_OF13_OXM: |
956 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
957 | ||
c37c0382 AC |
958 | case OFPUTIL_P_OF14_OXM: |
959 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
960 | ||
42dccab5 BP |
961 | case OFPUTIL_P_OF15_OXM: |
962 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
963 | ||
7fa91113 | 964 | default: |
428b2edd | 965 | OVS_NOT_REACHED(); |
7fa91113 BP |
966 | } |
967 | } | |
968 | ||
27527aa0 BP |
969 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
970 | * 'protocol' is either a single protocol or it is a combination of protocols | |
971 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
972 | const char * | |
973 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 974 | { |
27527aa0 BP |
975 | const struct proto_abbrev *p; |
976 | ||
977 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
978 | * warning if we forget any. */ | |
979 | switch (protocol) { | |
85813857 | 980 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
981 | return "NXM-table_id"; |
982 | ||
85813857 | 983 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
984 | return "NXM+table_id"; |
985 | ||
85813857 | 986 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
987 | return "OpenFlow10-table_id"; |
988 | ||
85813857 | 989 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 990 | return "OpenFlow10+table_id"; |
44d3732d | 991 | |
75fa58f8 BP |
992 | case OFPUTIL_P_OF11_STD: |
993 | return "OpenFlow11"; | |
994 | ||
85813857 | 995 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 996 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
997 | |
998 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 999 | return "OXM-OpenFlow13"; |
c37c0382 AC |
1000 | |
1001 | case OFPUTIL_P_OF14_OXM: | |
1002 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
1003 | |
1004 | case OFPUTIL_P_OF15_OXM: | |
1005 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
1006 | } |
1007 | ||
1008 | /* Check abbreviations. */ | |
1009 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1010 | if (protocol == p->protocol) { | |
1011 | return p->name; | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | return NULL; | |
1016 | } | |
1017 | ||
1018 | /* Returns a string that represents 'protocols'. The return value might be a | |
1019 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
1020 | * value is "none" if 'protocols' is 0. | |
1021 | * | |
1022 | * The caller must free the returned string (with free()). */ | |
1023 | char * | |
1024 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
1025 | { | |
1026 | struct ds s; | |
1027 | ||
cb22974d | 1028 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
1029 | if (protocols == 0) { |
1030 | return xstrdup("none"); | |
1031 | } | |
1032 | ||
1033 | ds_init(&s); | |
1034 | while (protocols) { | |
1035 | const struct proto_abbrev *p; | |
1036 | int i; | |
1037 | ||
1038 | if (s.length) { | |
1039 | ds_put_char(&s, ','); | |
1040 | } | |
1041 | ||
1042 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1043 | if ((protocols & p->protocol) == p->protocol) { | |
1044 | ds_put_cstr(&s, p->name); | |
1045 | protocols &= ~p->protocol; | |
1046 | goto match; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1051 | enum ofputil_protocol bit = 1u << i; | |
1052 | ||
1053 | if (protocols & bit) { | |
1054 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1055 | protocols &= ~bit; | |
1056 | goto match; | |
1057 | } | |
1058 | } | |
428b2edd | 1059 | OVS_NOT_REACHED(); |
27527aa0 BP |
1060 | |
1061 | match: ; | |
1062 | } | |
1063 | return ds_steal_cstr(&s); | |
1064 | } | |
1065 | ||
1066 | static enum ofputil_protocol | |
1067 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1068 | { | |
1069 | const struct proto_abbrev *p; | |
1070 | int i; | |
1071 | ||
1072 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1073 | enum ofputil_protocol bit = 1u << i; | |
1074 | const char *name = ofputil_protocol_to_string(bit); | |
1075 | ||
1076 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1077 | return bit; | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1082 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1083 | return p->protocol; | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1091 | * single protocol name or abbreviation or a comma-separated list of them. | |
1092 | * | |
1093 | * Aborts the program with an error message if 's' is invalid. */ | |
1094 | enum ofputil_protocol | |
1095 | ofputil_protocols_from_string(const char *s) | |
1096 | { | |
1097 | const char *orig_s = s; | |
1098 | enum ofputil_protocol protocols; | |
1099 | ||
1100 | protocols = 0; | |
1101 | while (*s) { | |
1102 | enum ofputil_protocol p; | |
1103 | size_t n; | |
1104 | ||
1105 | n = strcspn(s, ","); | |
1106 | if (n == 0) { | |
1107 | s++; | |
1108 | continue; | |
1109 | } | |
1110 | ||
1111 | p = ofputil_protocol_from_string__(s, n); | |
1112 | if (!p) { | |
1113 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1114 | } | |
1115 | protocols |= p; | |
1116 | ||
1117 | s += n; | |
1118 | } | |
1119 | ||
1120 | if (!protocols) { | |
1121 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1122 | } | |
1123 | return protocols; | |
88ca35ee BP |
1124 | } |
1125 | ||
9d84066c | 1126 | enum ofp_version |
03e1125c SH |
1127 | ofputil_version_from_string(const char *s) |
1128 | { | |
1129 | if (!strcasecmp(s, "OpenFlow10")) { | |
1130 | return OFP10_VERSION; | |
1131 | } | |
1132 | if (!strcasecmp(s, "OpenFlow11")) { | |
1133 | return OFP11_VERSION; | |
1134 | } | |
1135 | if (!strcasecmp(s, "OpenFlow12")) { | |
1136 | return OFP12_VERSION; | |
1137 | } | |
2e1ae200 JR |
1138 | if (!strcasecmp(s, "OpenFlow13")) { |
1139 | return OFP13_VERSION; | |
1140 | } | |
c37c0382 AC |
1141 | if (!strcasecmp(s, "OpenFlow14")) { |
1142 | return OFP14_VERSION; | |
1143 | } | |
42dccab5 BP |
1144 | if (!strcasecmp(s, "OpenFlow15")) { |
1145 | return OFP15_VERSION; | |
1146 | } | |
7beaa082 | 1147 | return 0; |
03e1125c SH |
1148 | } |
1149 | ||
1150 | static bool | |
e091ef84 | 1151 | is_delimiter(unsigned char c) |
03e1125c SH |
1152 | { |
1153 | return isspace(c) || c == ','; | |
1154 | } | |
1155 | ||
1156 | uint32_t | |
1157 | ofputil_versions_from_string(const char *s) | |
1158 | { | |
1159 | size_t i = 0; | |
1160 | uint32_t bitmap = 0; | |
1161 | ||
1162 | while (s[i]) { | |
1163 | size_t j; | |
7beaa082 | 1164 | int version; |
03e1125c SH |
1165 | char *key; |
1166 | ||
1167 | if (is_delimiter(s[i])) { | |
1168 | i++; | |
1169 | continue; | |
1170 | } | |
1171 | j = 0; | |
1172 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1173 | j++; | |
1174 | } | |
1175 | key = xmemdup0(s + i, j); | |
1176 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1177 | if (!version) { |
1178 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1179 | } | |
03e1125c SH |
1180 | free(key); |
1181 | bitmap |= 1u << version; | |
1182 | i += j; | |
1183 | } | |
1184 | ||
1185 | return bitmap; | |
1186 | } | |
1187 | ||
7beaa082 SH |
1188 | uint32_t |
1189 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1190 | { | |
1191 | uint32_t bitmap = 0; | |
1192 | ||
1193 | while (count--) { | |
1194 | int version = ofputil_version_from_string(s[count]); | |
1195 | if (!version) { | |
1196 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1197 | } else { | |
1198 | bitmap |= 1u << version; | |
1199 | } | |
1200 | } | |
1201 | ||
1202 | return bitmap; | |
1203 | } | |
1204 | ||
03e1125c SH |
1205 | const char * |
1206 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1207 | { | |
1208 | switch (ofp_version) { | |
1209 | case OFP10_VERSION: | |
1210 | return "OpenFlow10"; | |
1211 | case OFP11_VERSION: | |
1212 | return "OpenFlow11"; | |
1213 | case OFP12_VERSION: | |
1214 | return "OpenFlow12"; | |
2e1ae200 JR |
1215 | case OFP13_VERSION: |
1216 | return "OpenFlow13"; | |
c37c0382 AC |
1217 | case OFP14_VERSION: |
1218 | return "OpenFlow14"; | |
42dccab5 BP |
1219 | case OFP15_VERSION: |
1220 | return "OpenFlow15"; | |
03e1125c | 1221 | default: |
428b2edd | 1222 | OVS_NOT_REACHED(); |
03e1125c SH |
1223 | } |
1224 | } | |
1225 | ||
54834960 EJ |
1226 | bool |
1227 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1228 | { | |
1229 | switch (packet_in_format) { | |
1230 | case NXPIF_OPENFLOW10: | |
1231 | case NXPIF_NXM: | |
1232 | return true; | |
1233 | } | |
1234 | ||
1235 | return false; | |
1236 | } | |
1237 | ||
1238 | const char * | |
1239 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1240 | { | |
1241 | switch (packet_in_format) { | |
1242 | case NXPIF_OPENFLOW10: | |
1243 | return "openflow10"; | |
1244 | case NXPIF_NXM: | |
1245 | return "nxm"; | |
1246 | default: | |
428b2edd | 1247 | OVS_NOT_REACHED(); |
54834960 EJ |
1248 | } |
1249 | } | |
1250 | ||
1251 | int | |
1252 | ofputil_packet_in_format_from_string(const char *s) | |
1253 | { | |
1254 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1255 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1256 | : -1); | |
1257 | } | |
1258 | ||
03e1125c SH |
1259 | void |
1260 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1261 | { | |
8989046d | 1262 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1263 | } |
1264 | ||
1265 | void | |
1266 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1267 | { | |
1268 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1269 | } | |
1270 | ||
1271 | static void | |
1272 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1273 | void (*format_version)(struct ds *msg, | |
1274 | enum ofp_version)) | |
1275 | { | |
1276 | while (bitmap) { | |
1277 | format_version(msg, raw_ctz(bitmap)); | |
1278 | bitmap = zero_rightmost_1bit(bitmap); | |
1279 | if (bitmap) { | |
1280 | ds_put_cstr(msg, ", "); | |
1281 | } | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | void | |
1286 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1287 | { | |
1288 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1289 | } | |
1290 | ||
1291 | void | |
1292 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1293 | { | |
1294 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1295 | } | |
1296 | ||
de6c85b0 SH |
1297 | static bool |
1298 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1299 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1300 | { |
1301 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1302 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1303 | uint32_t allowed_versions; |
de6c85b0 SH |
1304 | |
1305 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1306 | return false; | |
1307 | } | |
1308 | ||
1309 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1310 | * current implementation supports. Subsequent elements are ignored which | |
1311 | * should have no effect on session negotiation until Open vSwtich supports | |
1312 | * wire-protocol versions greater than 31. | |
1313 | */ | |
0935de41 | 1314 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1315 | |
0935de41 | 1316 | if (allowed_versions & 1) { |
de6c85b0 SH |
1317 | /* There's no OpenFlow version 0. */ |
1318 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1319 | "version 0x00"); | |
0935de41 | 1320 | allowed_versions &= ~1u; |
de6c85b0 SH |
1321 | } |
1322 | ||
0935de41 | 1323 | if (!allowed_versions) { |
de6c85b0 SH |
1324 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1325 | "version (between 0x01 and 0x1f)"); | |
1326 | return false; | |
1327 | } | |
1328 | ||
0935de41 | 1329 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1330 | return true; |
1331 | } | |
1332 | ||
1333 | static uint32_t | |
1334 | version_bitmap_from_version(uint8_t ofp_version) | |
1335 | { | |
1336 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1337 | } | |
1338 | ||
1339 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1340 | * the set of OpenFlow versions for which 'oh' announces support. | |
1341 | * | |
1342 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1343 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1344 | * returns false if 'oh' contains some data that could not be fully understood, | |
1345 | * true if 'oh' was completely parsed. */ | |
1346 | bool | |
1347 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1348 | { | |
1349 | struct ofpbuf msg; | |
1350 | bool ok = true; | |
1351 | ||
1352 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1353 | ofpbuf_pull(&msg, sizeof *oh); | |
1354 | ||
1355 | *allowed_versions = version_bitmap_from_version(oh->version); | |
1f317cb5 | 1356 | while (ofpbuf_size(&msg)) { |
de6c85b0 SH |
1357 | const struct ofp_hello_elem_header *oheh; |
1358 | unsigned int len; | |
1359 | ||
1f317cb5 | 1360 | if (ofpbuf_size(&msg) < sizeof *oheh) { |
de6c85b0 SH |
1361 | return false; |
1362 | } | |
1363 | ||
1f317cb5 | 1364 | oheh = ofpbuf_data(&msg); |
de6c85b0 SH |
1365 | len = ntohs(oheh->length); |
1366 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1367 | return false; | |
1368 | } | |
1369 | ||
1370 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1371 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1372 | ok = false; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | return ok; | |
1377 | } | |
1378 | ||
1379 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1380 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1381 | static bool |
de6c85b0 SH |
1382 | should_send_version_bitmap(uint32_t allowed_versions) |
1383 | { | |
1384 | return !is_pow2((allowed_versions >> 1) + 1); | |
1385 | } | |
1386 | ||
1387 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1388 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1389 | struct ofpbuf * | |
1390 | ofputil_encode_hello(uint32_t allowed_versions) | |
1391 | { | |
1392 | enum ofp_version ofp_version; | |
1393 | struct ofpbuf *msg; | |
1394 | ||
1395 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1396 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1397 | ||
1398 | if (should_send_version_bitmap(allowed_versions)) { | |
1399 | struct ofp_hello_elem_header *oheh; | |
1400 | uint16_t map_len; | |
1401 | ||
74c4b9c1 | 1402 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1403 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1404 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1405 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1406 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1407 | |
1408 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1409 | } |
1410 | ||
1411 | return msg; | |
1412 | } | |
1413 | ||
27527aa0 BP |
1414 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1415 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1416 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1417 | * connection if the switch processes the returned message correctly. (If | |
1418 | * '*next != want' then the caller will have to iterate.) | |
1419 | * | |
e43928f2 BP |
1420 | * If 'current == want', or if it is not possible to transition from 'current' |
1421 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1422 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1423 | struct ofpbuf * |
1424 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1425 | enum ofputil_protocol want, | |
1426 | enum ofputil_protocol *next) | |
1427 | { | |
e43928f2 | 1428 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1429 | enum ofputil_protocol cur_base, want_base; |
1430 | bool cur_tid, want_tid; | |
1431 | ||
e43928f2 BP |
1432 | cur_version = ofputil_protocol_to_ofp_version(current); |
1433 | want_version = ofputil_protocol_to_ofp_version(want); | |
1434 | if (cur_version != want_version) { | |
1435 | *next = current; | |
1436 | return NULL; | |
1437 | } | |
1438 | ||
27527aa0 BP |
1439 | cur_base = ofputil_protocol_to_base(current); |
1440 | want_base = ofputil_protocol_to_base(want); | |
1441 | if (cur_base != want_base) { | |
1442 | *next = ofputil_protocol_set_base(current, want_base); | |
1443 | ||
1444 | switch (want_base) { | |
85813857 | 1445 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1446 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1447 | ||
85813857 | 1448 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1449 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1450 | ||
75fa58f8 | 1451 | case OFPUTIL_P_OF11_STD: |
85813857 | 1452 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1453 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1454 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1455 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1456 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1457 | * verified above that we're not trying to change versions. */ |
428b2edd | 1458 | OVS_NOT_REACHED(); |
44d3732d | 1459 | |
85813857 BP |
1460 | case OFPUTIL_P_OF10_STD_TID: |
1461 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1462 | OVS_NOT_REACHED(); |
27527aa0 BP |
1463 | } |
1464 | } | |
1465 | ||
1466 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1467 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1468 | if (cur_tid != want_tid) { | |
1469 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1470 | return ofputil_make_flow_mod_table_id(want_tid); | |
1471 | } | |
1472 | ||
cb22974d | 1473 | ovs_assert(current == want); |
27527aa0 BP |
1474 | |
1475 | *next = current; | |
1476 | return NULL; | |
88ca35ee BP |
1477 | } |
1478 | ||
27527aa0 BP |
1479 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1480 | * format to 'nxff'. */ | |
88ca35ee | 1481 | struct ofpbuf * |
27527aa0 | 1482 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1483 | { |
73dbf4ab | 1484 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1485 | struct ofpbuf *msg; |
1486 | ||
cb22974d | 1487 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1488 | |
982697a4 BP |
1489 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1490 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1491 | sff->format = htonl(nxff); |
88ca35ee BP |
1492 | |
1493 | return msg; | |
1494 | } | |
1495 | ||
27527aa0 BP |
1496 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1497 | * otherwise. */ | |
1498 | enum ofputil_protocol | |
1499 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1500 | { | |
1501 | switch (flow_format) { | |
1502 | case NXFF_OPENFLOW10: | |
85813857 | 1503 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1504 | |
1505 | case NXFF_NXM: | |
85813857 | 1506 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1507 | |
1508 | default: | |
1509 | return 0; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1514 | bool | |
1515 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1516 | { | |
1517 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1518 | } | |
1519 | ||
1520 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1521 | * value. */ | |
1522 | const char * | |
1523 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1524 | { | |
1525 | switch (flow_format) { | |
1526 | case NXFF_OPENFLOW10: | |
1527 | return "openflow10"; | |
1528 | case NXFF_NXM: | |
1529 | return "nxm"; | |
1530 | default: | |
428b2edd | 1531 | OVS_NOT_REACHED(); |
27527aa0 BP |
1532 | } |
1533 | } | |
1534 | ||
54834960 | 1535 | struct ofpbuf * |
3f4a1939 SH |
1536 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1537 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1538 | { |
73dbf4ab | 1539 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1540 | struct ofpbuf *msg; |
1541 | ||
3f4a1939 | 1542 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1543 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1544 | spif->format = htonl(packet_in_format); |
1545 | ||
1546 | return msg; | |
1547 | } | |
1548 | ||
6c1491fb BP |
1549 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1550 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1551 | struct ofpbuf * | |
1552 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1553 | { | |
73dbf4ab | 1554 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1555 | struct ofpbuf *msg; |
1556 | ||
982697a4 BP |
1557 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1558 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1559 | nfmti->set = flow_mod_table_id; |
1560 | return msg; | |
1561 | } | |
1562 | ||
0fb88c18 BP |
1563 | struct ofputil_flow_mod_flag { |
1564 | uint16_t raw_flag; | |
1565 | enum ofp_version min_version, max_version; | |
1566 | enum ofputil_flow_mod_flags flag; | |
1567 | }; | |
1568 | ||
1569 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1570 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1571 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1572 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1573 | OFPUTIL_FF_EMERG }, | |
1574 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1575 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1576 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1577 | { 0, 0, 0, 0 }, | |
1578 | }; | |
1579 | ||
1580 | static enum ofperr | |
1581 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1582 | enum ofp_flow_mod_command command, | |
1583 | enum ofp_version version, | |
1584 | enum ofputil_flow_mod_flags *flagsp) | |
1585 | { | |
1586 | uint16_t raw_flags = ntohs(raw_flags_); | |
1587 | const struct ofputil_flow_mod_flag *f; | |
1588 | ||
1589 | *flagsp = 0; | |
1590 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1591 | if (raw_flags & f->raw_flag | |
1592 | && version >= f->min_version | |
1593 | && (!f->max_version || version <= f->max_version)) { | |
1594 | raw_flags &= ~f->raw_flag; | |
1595 | *flagsp |= f->flag; | |
1596 | } | |
1597 | } | |
1598 | ||
1599 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1600 | * never do. | |
1601 | * | |
1602 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1603 | * resets counters. */ | |
1604 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1605 | && command == OFPFC_ADD) { | |
1606 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1607 | } | |
1608 | ||
1609 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1610 | } | |
1611 | ||
1612 | static ovs_be16 | |
1613 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1614 | enum ofp_version version) | |
1615 | { | |
1616 | const struct ofputil_flow_mod_flag *f; | |
1617 | uint16_t raw_flags; | |
1618 | ||
1619 | raw_flags = 0; | |
1620 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1621 | if (f->flag & flags | |
1622 | && version >= f->min_version | |
1623 | && (!f->max_version || version <= f->max_version)) { | |
1624 | raw_flags |= f->raw_flag; | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | return htons(raw_flags); | |
1629 | } | |
1630 | ||
7fa91113 BP |
1631 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1632 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1633 | * code. | |
1634 | * | |
f25d0cf3 BP |
1635 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1636 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1637 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1638 | * | |
1639 | * Does not validate the flow_mod actions. The caller should do that, with | |
1640 | * ofpacts_check(). */ | |
90bf1e07 | 1641 | enum ofperr |
a9a2da38 | 1642 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1643 | const struct ofp_header *oh, |
f25d0cf3 | 1644 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1645 | struct ofpbuf *ofpacts, |
1646 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1647 | { |
0fb88c18 BP |
1648 | ovs_be16 raw_flags; |
1649 | enum ofperr error; | |
2e4f5fcf | 1650 | struct ofpbuf b; |
982697a4 | 1651 | enum ofpraw raw; |
2e4f5fcf | 1652 | |
cc40d06b SH |
1653 | /* Ignored for non-delete actions */ |
1654 | fm->delete_reason = OFPRR_DELETE; | |
1655 | ||
2013493b | 1656 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1657 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1658 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1659 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1660 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1661 | |
bbc32a88 | 1662 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1663 | |
81a76618 | 1664 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1665 | if (error) { |
1666 | return error; | |
1c0b7503 BP |
1667 | } |
1668 | ||
2e4f5fcf | 1669 | /* Translate the message. */ |
81a76618 | 1670 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1671 | if (ofm->command == OFPFC_ADD |
1672 | || (oh->version == OFP11_VERSION | |
1673 | && (ofm->command == OFPFC_MODIFY || | |
1674 | ofm->command == OFPFC_MODIFY_STRICT) | |
1675 | && ofm->cookie_mask == htonll(0))) { | |
1676 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1677 | * not match on the cookie is treated as an "add" if there is no | |
1678 | * match. */ | |
aa319503 BP |
1679 | fm->cookie = htonll(0); |
1680 | fm->cookie_mask = htonll(0); | |
1681 | fm->new_cookie = ofm->cookie; | |
1682 | } else { | |
aa319503 BP |
1683 | fm->cookie = ofm->cookie; |
1684 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1685 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1686 | } |
23342857 | 1687 | fm->modify_cookie = false; |
aa319503 | 1688 | fm->command = ofm->command; |
0e197060 BP |
1689 | |
1690 | /* Get table ID. | |
1691 | * | |
083761ad SH |
1692 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1693 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1694 | fm->table_id = ofm->table_id; |
083761ad | 1695 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1696 | && (oh->version == OFP11_VERSION |
1697 | || (ofm->command != OFPFC_DELETE && | |
1698 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1699 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1700 | } | |
1701 | ||
2e4f5fcf BP |
1702 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1703 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1704 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1705 | fm->importance = ntohs(ofm->importance); | |
1706 | } else { | |
1707 | fm->importance = 0; | |
1708 | } | |
2e4f5fcf | 1709 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1710 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1711 | if (error) { |
1712 | return error; | |
1713 | } | |
7395c052 | 1714 | |
1fe4c0a0 BP |
1715 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1716 | ofm->command == OFPFC_DELETE_STRICT | |
1717 | ? ntohl(ofm->out_group) | |
1718 | : OFPG11_ANY); | |
0fb88c18 | 1719 | raw_flags = ofm->flags; |
aa319503 | 1720 | } else { |
0fb88c18 BP |
1721 | uint16_t command; |
1722 | ||
aa319503 BP |
1723 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1724 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1725 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1726 | |
1727 | /* Get the ofp10_flow_mod. */ | |
1728 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1729 | ||
aa319503 | 1730 | /* Translate the rule. */ |
81a76618 BP |
1731 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1732 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1733 | |
81a76618 BP |
1734 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1735 | * highest possible priority. */ | |
1736 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1737 | ? ntohs(ofm->priority) | |
1738 | : UINT16_MAX); | |
1739 | ||
aa319503 BP |
1740 | /* Translate the message. */ |
1741 | command = ntohs(ofm->command); | |
1742 | fm->cookie = htonll(0); | |
1743 | fm->cookie_mask = htonll(0); | |
1744 | fm->new_cookie = ofm->cookie; | |
1745 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1746 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1747 | fm->importance = 0; |
aa319503 | 1748 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1749 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1750 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1751 | raw_flags = ofm->flags; |
aa319503 BP |
1752 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1753 | /* Nicira extended flow_mod. */ | |
1754 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1755 | |
1756 | /* Dissect the message. */ | |
1757 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1758 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1759 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1760 | if (error) { |
1761 | return error; | |
1762 | } | |
aa319503 BP |
1763 | |
1764 | /* Translate the message. */ | |
1765 | command = ntohs(nfm->command); | |
1766 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1767 | /* Flow additions may only set a new cookie, not match an | |
1768 | * existing cookie. */ | |
1769 | return OFPERR_NXBRC_NXM_INVALID; | |
1770 | } | |
81a76618 | 1771 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1772 | fm->new_cookie = nfm->cookie; |
1773 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1774 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1775 | fm->importance = 0; |
aa319503 | 1776 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1777 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1778 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1779 | raw_flags = nfm->flags; |
aa319503 | 1780 | } else { |
428b2edd | 1781 | OVS_NOT_REACHED(); |
aa319503 BP |
1782 | } |
1783 | ||
b8266395 | 1784 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1785 | if (protocol & OFPUTIL_P_TID) { |
1786 | fm->command = command & 0xff; | |
1787 | fm->table_id = command >> 8; | |
1788 | } else { | |
1789 | fm->command = command; | |
1790 | fm->table_id = 0xff; | |
e729e793 | 1791 | } |
2e4f5fcf BP |
1792 | } |
1793 | ||
8f2cded4 BP |
1794 | error = ofpacts_pull_openflow_instructions(&b, ofpbuf_size(&b), |
1795 | oh->version, ofpacts); | |
1796 | if (error) { | |
1797 | return error; | |
1798 | } | |
1f317cb5 PS |
1799 | fm->ofpacts = ofpbuf_data(ofpacts); |
1800 | fm->ofpacts_len = ofpbuf_size(ofpacts); | |
6c1491fb | 1801 | |
0fb88c18 BP |
1802 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1803 | oh->version, &fm->flags); | |
1804 | if (error) { | |
1805 | return error; | |
1806 | } | |
1807 | ||
1808 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1809 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1810 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1811 | * | |
1812 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1813 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1814 | * code, so just state that the flow table is full. */ | |
1815 | return (fm->hard_timeout || fm->idle_timeout | |
1816 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1817 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1818 | } | |
1819 | ||
ba2fe8e9 BP |
1820 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1821 | &fm->match.flow, max_port, | |
1822 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1823 | } |
1824 | ||
638a19b0 JR |
1825 | static enum ofperr |
1826 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1827 | struct ofpbuf *bands) | |
1828 | { | |
1829 | const struct ofp13_meter_band_header *ombh; | |
1830 | struct ofputil_meter_band *mb; | |
1831 | uint16_t n = 0; | |
1832 | ||
1833 | ombh = ofpbuf_try_pull(msg, len); | |
1834 | if (!ombh) { | |
1835 | return OFPERR_OFPBRC_BAD_LEN; | |
1836 | } | |
1837 | ||
1838 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1839 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1840 | /* All supported band types have the same length. */ |
638a19b0 JR |
1841 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1842 | return OFPERR_OFPBRC_BAD_LEN; | |
1843 | } | |
1844 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1845 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1846 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1847 | return OFPERR_OFPMMFC_BAD_BAND; | |
1848 | } | |
638a19b0 JR |
1849 | mb->rate = ntohl(ombh->rate); |
1850 | mb->burst_size = ntohl(ombh->burst_size); | |
1851 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1852 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1853 | n++; | |
1854 | len -= ombh_len; | |
db5a1019 AW |
1855 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1856 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1857 | } |
1858 | if (len) { | |
1859 | return OFPERR_OFPBRC_BAD_LEN; | |
1860 | } | |
1861 | *n_bands = n; | |
1862 | return 0; | |
1863 | } | |
1864 | ||
1865 | enum ofperr | |
1866 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1867 | struct ofputil_meter_mod *mm, | |
1868 | struct ofpbuf *bands) | |
1869 | { | |
1870 | const struct ofp13_meter_mod *omm; | |
1871 | struct ofpbuf b; | |
1872 | ||
1873 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1874 | ofpraw_pull_assert(&b); | |
1875 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1876 | ||
1877 | /* Translate the message. */ | |
1878 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1879 | if (mm->command != OFPMC13_ADD && |
1880 | mm->command != OFPMC13_MODIFY && | |
1881 | mm->command != OFPMC13_DELETE) { | |
1882 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1883 | } | |
638a19b0 JR |
1884 | mm->meter.meter_id = ntohl(omm->meter_id); |
1885 | ||
1886 | if (mm->command == OFPMC13_DELETE) { | |
1887 | mm->meter.flags = 0; | |
1888 | mm->meter.n_bands = 0; | |
1889 | mm->meter.bands = NULL; | |
1890 | } else { | |
1891 | enum ofperr error; | |
1892 | ||
1893 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1894 | if (mm->meter.flags & OFPMF13_KBPS && |
1895 | mm->meter.flags & OFPMF13_PKTPS) { | |
1896 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1897 | } | |
1f317cb5 | 1898 | mm->meter.bands = ofpbuf_data(bands); |
638a19b0 | 1899 | |
1f317cb5 | 1900 | error = ofputil_pull_bands(&b, ofpbuf_size(&b), &mm->meter.n_bands, bands); |
638a19b0 JR |
1901 | if (error) { |
1902 | return error; | |
1903 | } | |
1904 | } | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | void | |
1909 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1910 | { | |
1911 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1912 | *meter_id = ntohl(omr->meter_id); | |
1913 | } | |
1914 | ||
1915 | struct ofpbuf * | |
1916 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1917 | enum ofputil_meter_request_type type, | |
1918 | uint32_t meter_id) | |
1919 | { | |
1920 | struct ofpbuf *msg; | |
1921 | ||
1922 | enum ofpraw raw; | |
1923 | ||
1924 | switch (type) { | |
1925 | case OFPUTIL_METER_CONFIG: | |
1926 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1927 | break; | |
1928 | case OFPUTIL_METER_STATS: | |
1929 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1930 | break; | |
1931 | default: | |
1932 | case OFPUTIL_METER_FEATURES: | |
1933 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1934 | break; | |
1935 | } | |
1936 | ||
1937 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1938 | ||
1939 | if (type != OFPUTIL_METER_FEATURES) { | |
1940 | struct ofp13_meter_multipart_request *omr; | |
1941 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1942 | omr->meter_id = htonl(meter_id); | |
1943 | } | |
1944 | return msg; | |
1945 | } | |
1946 | ||
1947 | static void | |
1948 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1949 | struct ofpbuf *msg) | |
1950 | { | |
1951 | uint16_t n = 0; | |
1952 | ||
1953 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1954 | /* Currently all band types have same size. */ |
638a19b0 JR |
1955 | struct ofp13_meter_band_dscp_remark *ombh; |
1956 | size_t ombh_len = sizeof *ombh; | |
1957 | ||
1958 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1959 | ||
1960 | ombh->type = htons(mb->type); | |
1961 | ombh->len = htons(ombh_len); | |
1962 | ombh->rate = htonl(mb->rate); | |
1963 | ombh->burst_size = htonl(mb->burst_size); | |
1964 | ombh->prec_level = mb->prec_level; | |
1965 | ||
1966 | mb++; | |
1967 | } | |
1968 | } | |
1969 | ||
1970 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1971 | void | |
1972 | ofputil_append_meter_config(struct list *replies, | |
1973 | const struct ofputil_meter_config *mc) | |
1974 | { | |
1975 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
1f317cb5 | 1976 | size_t start_ofs = ofpbuf_size(msg); |
638a19b0 JR |
1977 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); |
1978 | reply->flags = htons(mc->flags); | |
1979 | reply->meter_id = htonl(mc->meter_id); | |
1980 | ||
1981 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1982 | ||
1f317cb5 | 1983 | reply->length = htons(ofpbuf_size(msg) - start_ofs); |
638a19b0 JR |
1984 | |
1985 | ofpmp_postappend(replies, start_ofs); | |
1986 | } | |
1987 | ||
1988 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1989 | void | |
1990 | ofputil_append_meter_stats(struct list *replies, | |
1991 | const struct ofputil_meter_stats *ms) | |
1992 | { | |
1993 | struct ofp13_meter_stats *reply; | |
1994 | uint16_t n = 0; | |
1995 | uint16_t len; | |
1996 | ||
1997 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1998 | reply = ofpmp_append(replies, len); | |
1999 | ||
2000 | reply->meter_id = htonl(ms->meter_id); | |
2001 | reply->len = htons(len); | |
2002 | memset(reply->pad, 0, sizeof reply->pad); | |
2003 | reply->flow_count = htonl(ms->flow_count); | |
2004 | reply->packet_in_count = htonll(ms->packet_in_count); | |
2005 | reply->byte_in_count = htonll(ms->byte_in_count); | |
2006 | reply->duration_sec = htonl(ms->duration_sec); | |
2007 | reply->duration_nsec = htonl(ms->duration_nsec); | |
2008 | ||
2009 | for (n = 0; n < ms->n_bands; ++n) { | |
2010 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
2011 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
2012 | ||
2013 | dst->packet_band_count = htonll(src->packet_count); | |
2014 | dst->byte_band_count = htonll(src->byte_count); | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
2019 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
2020 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
2021 | * it across the call. | |
2022 | * | |
2023 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
2024 | * message. Calling this function multiple times for a single 'msg' iterates | |
2025 | * through the replies. 'bands' is cleared for each reply. | |
2026 | * | |
2027 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2028 | * otherwise a positive errno value. */ | |
2029 | int | |
2030 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2031 | struct ofputil_meter_config *mc, | |
2032 | struct ofpbuf *bands) | |
2033 | { | |
2034 | const struct ofp13_meter_config *omc; | |
2035 | enum ofperr err; | |
2036 | ||
2037 | /* Pull OpenFlow headers for the first call. */ | |
cf3b7538 | 2038 | if (!msg->frame) { |
638a19b0 JR |
2039 | ofpraw_pull_assert(msg); |
2040 | } | |
2041 | ||
1f317cb5 | 2042 | if (!ofpbuf_size(msg)) { |
638a19b0 JR |
2043 | return EOF; |
2044 | } | |
2045 | ||
2046 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2047 | if (!omc) { | |
0445637d | 2048 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2049 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 2050 | ofpbuf_size(msg)); |
638a19b0 JR |
2051 | return OFPERR_OFPBRC_BAD_LEN; |
2052 | } | |
2053 | ||
2054 | ofpbuf_clear(bands); | |
2055 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2056 | &mc->n_bands, bands); | |
2057 | if (err) { | |
2058 | return err; | |
2059 | } | |
2060 | mc->meter_id = ntohl(omc->meter_id); | |
2061 | mc->flags = ntohs(omc->flags); | |
1f317cb5 | 2062 | mc->bands = ofpbuf_data(bands); |
638a19b0 JR |
2063 | |
2064 | return 0; | |
2065 | } | |
2066 | ||
2067 | static enum ofperr | |
2068 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2069 | struct ofpbuf *bands) | |
2070 | { | |
2071 | const struct ofp13_meter_band_stats *ombs; | |
2072 | struct ofputil_meter_band_stats *mbs; | |
2073 | uint16_t n, i; | |
2074 | ||
0445637d JR |
2075 | ombs = ofpbuf_try_pull(msg, len); |
2076 | if (!ombs) { | |
2077 | return OFPERR_OFPBRC_BAD_LEN; | |
2078 | } | |
2079 | ||
638a19b0 JR |
2080 | n = len / sizeof *ombs; |
2081 | if (len != n * sizeof *ombs) { | |
2082 | return OFPERR_OFPBRC_BAD_LEN; | |
2083 | } | |
2084 | ||
638a19b0 JR |
2085 | mbs = ofpbuf_put_uninit(bands, len); |
2086 | ||
2087 | for (i = 0; i < n; ++i) { | |
2088 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2089 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2090 | } | |
2091 | *n_bands = n; | |
2092 | return 0; | |
2093 | } | |
2094 | ||
2095 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2096 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2097 | * decoded into 'bands'. | |
2098 | * | |
2099 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2100 | * message. Calling this function multiple times for a single 'msg' iterates | |
2101 | * through the replies. 'bands' is cleared for each reply. | |
2102 | * | |
2103 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2104 | * otherwise a positive errno value. */ | |
2105 | int | |
2106 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2107 | struct ofputil_meter_stats *ms, | |
2108 | struct ofpbuf *bands) | |
2109 | { | |
2110 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2111 | enum ofperr err; |
2112 | ||
2113 | /* Pull OpenFlow headers for the first call. */ | |
cf3b7538 | 2114 | if (!msg->frame) { |
638a19b0 JR |
2115 | ofpraw_pull_assert(msg); |
2116 | } | |
2117 | ||
1f317cb5 | 2118 | if (!ofpbuf_size(msg)) { |
638a19b0 JR |
2119 | return EOF; |
2120 | } | |
2121 | ||
2122 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2123 | if (!oms) { | |
0445637d | 2124 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2125 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 2126 | ofpbuf_size(msg)); |
638a19b0 JR |
2127 | return OFPERR_OFPBRC_BAD_LEN; |
2128 | } | |
638a19b0 JR |
2129 | |
2130 | ofpbuf_clear(bands); | |
0445637d JR |
2131 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2132 | &ms->n_bands, bands); | |
638a19b0 JR |
2133 | if (err) { |
2134 | return err; | |
2135 | } | |
2136 | ms->meter_id = ntohl(oms->meter_id); | |
2137 | ms->flow_count = ntohl(oms->flow_count); | |
2138 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2139 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2140 | ms->duration_sec = ntohl(oms->duration_sec); | |
2141 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
1f317cb5 | 2142 | ms->bands = ofpbuf_data(bands); |
638a19b0 JR |
2143 | |
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | void | |
2148 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2149 | struct ofputil_meter_features *mf) | |
2150 | { | |
2151 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2152 | ||
2153 | mf->max_meters = ntohl(omf->max_meter); | |
2154 | mf->band_types = ntohl(omf->band_types); | |
2155 | mf->capabilities = ntohl(omf->capabilities); | |
2156 | mf->max_bands = omf->max_bands; | |
2157 | mf->max_color = omf->max_color; | |
2158 | } | |
2159 | ||
2160 | struct ofpbuf * | |
2161 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2162 | const struct ofp_header *request) | |
2163 | { | |
2164 | struct ofpbuf *reply; | |
2165 | struct ofp13_meter_features *omf; | |
2166 | ||
2167 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2168 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2169 | ||
2170 | omf->max_meter = htonl(mf->max_meters); | |
2171 | omf->band_types = htonl(mf->band_types); | |
2172 | omf->capabilities = htonl(mf->capabilities); | |
2173 | omf->max_bands = mf->max_bands; | |
2174 | omf->max_color = mf->max_color; | |
2175 | ||
2176 | return reply; | |
2177 | } | |
2178 | ||
2179 | struct ofpbuf * | |
2180 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2181 | const struct ofputil_meter_mod *mm) | |
2182 | { | |
2183 | struct ofpbuf *msg; | |
2184 | ||
2185 | struct ofp13_meter_mod *omm; | |
2186 | ||
2187 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2188 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2189 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2190 | omm->command = htons(mm->command); | |
2191 | if (mm->command != OFPMC13_DELETE) { | |
2192 | omm->flags = htons(mm->meter.flags); | |
2193 | } | |
2194 | omm->meter_id = htonl(mm->meter.meter_id); | |
2195 | ||
2196 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2197 | ||
2198 | ofpmsg_update_length(msg); | |
2199 | return msg; | |
2200 | } | |
2201 | ||
aa6305ea SH |
2202 | static ovs_be16 |
2203 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2204 | enum ofputil_protocol protocol) | |
2205 | { | |
2206 | return htons(protocol & OFPUTIL_P_TID | |
2207 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2208 | : fm->command); | |
2209 | } | |
2210 | ||
2e4f5fcf | 2211 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2212 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2213 | struct ofpbuf * |
a9a2da38 | 2214 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2215 | enum ofputil_protocol protocol) |
2e4f5fcf | 2216 | { |
0fb88c18 BP |
2217 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2218 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2219 | struct ofpbuf *msg; |
2220 | ||
27527aa0 | 2221 | switch (protocol) { |
75fa58f8 | 2222 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2223 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2224 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2225 | case OFPUTIL_P_OF14_OXM: |
2226 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2227 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2228 | int tailroom; |
aa6305ea | 2229 | |
75fa58f8 | 2230 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2231 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2232 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2233 | if ((protocol == OFPUTIL_P_OF11_STD |
2234 | && (fm->command == OFPFC_MODIFY || | |
2235 | fm->command == OFPFC_MODIFY_STRICT) | |
2236 | && fm->cookie_mask == htonll(0)) | |
2237 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2238 | ofm->cookie = fm->new_cookie; |
2239 | } else { | |
ba5cc068 | 2240 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2241 | } |
aa6305ea | 2242 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2243 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2244 | || (protocol != OFPUTIL_P_OF11_STD |
2245 | && (fm->command == OFPFC_DELETE || | |
2246 | fm->command == OFPFC_DELETE_STRICT))) { | |
2247 | ofm->table_id = fm->table_id; | |
2248 | } else { | |
2249 | ofm->table_id = 0; | |
2250 | } | |
aa6305ea SH |
2251 | ofm->command = fm->command; |
2252 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2253 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2254 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2255 | ofm->buffer_id = htonl(fm->buffer_id); |
2256 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2257 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2258 | ofm->flags = raw_flags; |
ca26eb44 RB |
2259 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2260 | ofm->importance = htons(fm->importance); | |
2261 | } else { | |
2262 | ofm->importance = 0; | |
2263 | } | |
75fa58f8 | 2264 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2265 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2266 | version); | |
aa6305ea SH |
2267 | break; |
2268 | } | |
2269 | ||
85813857 BP |
2270 | case OFPUTIL_P_OF10_STD: |
2271 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2272 | struct ofp10_flow_mod *ofm; |
2273 | ||
982697a4 BP |
2274 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2275 | fm->ofpacts_len); | |
2276 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2277 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2278 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2279 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2280 | ofm->idle_timeout = htons(fm->idle_timeout); |
2281 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2282 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2283 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2284 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2285 | ofm->flags = raw_flags; |
e3f8f887 JR |
2286 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2287 | version); | |
27527aa0 | 2288 | break; |
3f192f23 | 2289 | } |
2e4f5fcf | 2290 | |
85813857 BP |
2291 | case OFPUTIL_P_OF10_NXM: |
2292 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2293 | struct nx_flow_mod *nfm; |
2294 | int match_len; | |
2295 | ||
982697a4 BP |
2296 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2297 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2298 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2299 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2300 | nfm->cookie = fm->new_cookie; |
81a76618 | 2301 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6b8c377a | 2302 | nfm = ofpbuf_l3(msg); |
2e4f5fcf BP |
2303 | nfm->idle_timeout = htons(fm->idle_timeout); |
2304 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2305 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2306 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2307 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2308 | nfm->flags = raw_flags; |
2e4f5fcf | 2309 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2310 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2311 | version); | |
27527aa0 | 2312 | break; |
3f192f23 | 2313 | } |
27527aa0 BP |
2314 | |
2315 | default: | |
428b2edd | 2316 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2317 | } |
2318 | ||
982697a4 | 2319 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2320 | return msg; |
2321 | } | |
2322 | ||
90bf1e07 | 2323 | static enum ofperr |
0157ad3a SH |
2324 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2325 | const struct ofp10_flow_stats_request *ofsr, | |
2326 | bool aggregate) | |
2e4f5fcf | 2327 | { |
2e4f5fcf | 2328 | fsr->aggregate = aggregate; |
81a76618 | 2329 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2330 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2331 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2332 | fsr->table_id = ofsr->table_id; |
e729e793 | 2333 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2334 | |
2335 | return 0; | |
2336 | } | |
2337 | ||
0157ad3a SH |
2338 | static enum ofperr |
2339 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2340 | struct ofpbuf *b, bool aggregate) | |
2341 | { | |
2342 | const struct ofp11_flow_stats_request *ofsr; | |
2343 | enum ofperr error; | |
2344 | ||
2345 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2346 | fsr->aggregate = aggregate; | |
2347 | fsr->table_id = ofsr->table_id; | |
2348 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2349 | if (error) { | |
2350 | return error; | |
2351 | } | |
7395c052 | 2352 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2353 | fsr->cookie = ofsr->cookie; |
2354 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2355 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2356 | if (error) { |
2357 | return error; | |
2358 | } | |
2359 | ||
2360 | return 0; | |
2361 | } | |
2362 | ||
90bf1e07 | 2363 | static enum ofperr |
81d1ea94 | 2364 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2365 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2366 | { |
2367 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2368 | enum ofperr error; |
2e4f5fcf | 2369 | |
982697a4 | 2370 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2371 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2372 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2373 | if (error) { |
2374 | return error; | |
2375 | } | |
1f317cb5 | 2376 | if (ofpbuf_size(b)) { |
90bf1e07 | 2377 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2378 | } |
2379 | ||
2380 | fsr->aggregate = aggregate; | |
4e022ec0 | 2381 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2382 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2383 | fsr->table_id = nfsr->table_id; |
2384 | ||
2385 | return 0; | |
2386 | } | |
2387 | ||
e8f9a7bb VG |
2388 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2389 | * 'port', suitable for OpenFlow version 'version'. */ | |
2390 | struct ofpbuf * | |
2391 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2392 | ofp_port_t port) | |
2393 | { | |
2394 | struct ofpbuf *request; | |
2395 | ||
2396 | if (version == OFP10_VERSION) { | |
2397 | struct ofp10_queue_get_config_request *qgcr10; | |
2398 | ||
2399 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2400 | version, 0); | |
2401 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2402 | qgcr10->port = htons(ofp_to_u16(port)); | |
2403 | } else { | |
2404 | struct ofp11_queue_get_config_request *qgcr11; | |
2405 | ||
2406 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2407 | version, 0); | |
2408 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2409 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2410 | } | |
2411 | ||
2412 | return request; | |
2413 | } | |
2414 | ||
2415 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2416 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2417 | * code. */ | |
2418 | enum ofperr | |
2419 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2420 | ofp_port_t *port) | |
2421 | { | |
2422 | const struct ofp10_queue_get_config_request *qgcr10; | |
2423 | const struct ofp11_queue_get_config_request *qgcr11; | |
2424 | enum ofpraw raw; | |
2425 | struct ofpbuf b; | |
2426 | ||
2427 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2428 | raw = ofpraw_pull_assert(&b); | |
2429 | ||
2430 | switch ((int) raw) { | |
2431 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
1f317cb5 | 2432 | qgcr10 = ofpbuf_data(&b); |
e8f9a7bb VG |
2433 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
2434 | return 0; | |
2435 | ||
2436 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
1f317cb5 | 2437 | qgcr11 = ofpbuf_data(&b); |
e8f9a7bb VG |
2438 | return ofputil_port_from_ofp11(qgcr11->port, port); |
2439 | } | |
2440 | ||
428b2edd | 2441 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2442 | } |
2443 | ||
2444 | /* Constructs and returns the beginning of a reply to | |
2445 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2446 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2447 | struct ofpbuf * | |
2448 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2449 | { | |
2450 | struct ofp10_queue_get_config_reply *qgcr10; | |
2451 | struct ofp11_queue_get_config_reply *qgcr11; | |
2452 | struct ofpbuf *reply; | |
2453 | enum ofperr error; | |
2454 | struct ofpbuf b; | |
2455 | enum ofpraw raw; | |
2456 | ofp_port_t port; | |
2457 | ||
2458 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2459 | ovs_assert(!error); | |
2460 | ||
2461 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2462 | raw = ofpraw_pull_assert(&b); | |
2463 | ||
2464 | switch ((int) raw) { | |
2465 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2466 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2467 | oh, 0); | |
2468 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2469 | qgcr10->port = htons(ofp_to_u16(port)); | |
2470 | break; | |
2471 | ||
2472 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2473 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2474 | oh, 0); | |
2475 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2476 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2477 | break; | |
2478 | ||
2479 | default: | |
428b2edd | 2480 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2481 | } |
2482 | ||
2483 | return reply; | |
2484 | } | |
2485 | ||
2486 | static void | |
2487 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2488 | uint16_t rate) | |
2489 | { | |
2490 | if (rate != UINT16_MAX) { | |
2491 | struct ofp_queue_prop_rate *oqpr; | |
2492 | ||
2493 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2494 | oqpr->prop_header.property = htons(property); | |
2495 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2496 | oqpr->rate = htons(rate); | |
2497 | } | |
2498 | } | |
2499 | ||
2500 | /* Appends a queue description for 'queue_id' to the | |
2501 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2502 | void | |
2503 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2504 | const struct ofputil_queue_config *oqc) | |
2505 | { | |
1f317cb5 | 2506 | const struct ofp_header *oh = ofpbuf_data(reply); |
e8f9a7bb VG |
2507 | size_t start_ofs, len_ofs; |
2508 | ovs_be16 *len; | |
2509 | ||
1f317cb5 | 2510 | start_ofs = ofpbuf_size(reply); |
e8f9a7bb VG |
2511 | if (oh->version < OFP12_VERSION) { |
2512 | struct ofp10_packet_queue *opq10; | |
2513 | ||
2514 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2515 | opq10->queue_id = htonl(oqc->queue_id); | |
1f317cb5 | 2516 | len_ofs = (char *) &opq10->len - (char *) ofpbuf_data(reply); |
e8f9a7bb VG |
2517 | } else { |
2518 | struct ofp11_queue_get_config_reply *qgcr11; | |
2519 | struct ofp12_packet_queue *opq12; | |
2520 | ovs_be32 port; | |
2521 | ||
6b8c377a | 2522 | qgcr11 = ofpbuf_l3(reply); |
e8f9a7bb VG |
2523 | port = qgcr11->port; |
2524 | ||
2525 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2526 | opq12->port = port; | |
2527 | opq12->queue_id = htonl(oqc->queue_id); | |
1f317cb5 | 2528 | len_ofs = (char *) &opq12->len - (char *) ofpbuf_data(reply); |
e8f9a7bb VG |
2529 | } |
2530 | ||
2531 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2532 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2533 | ||
2534 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
1f317cb5 | 2535 | *len = htons(ofpbuf_size(reply) - start_ofs); |
e8f9a7bb VG |
2536 | } |
2537 | ||
2538 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2539 | * stores in '*port' the port that the reply is about. The caller may call | |
2540 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2541 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2542 | * ofperr.*/ | |
2543 | enum ofperr | |
2544 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2545 | { | |
2546 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2547 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2548 | enum ofpraw raw; | |
2549 | ||
2550 | raw = ofpraw_pull_assert(reply); | |
2551 | switch ((int) raw) { | |
2552 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2553 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2554 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2555 | return 0; | |
2556 | ||
2557 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2558 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2559 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2560 | } | |
2561 | ||
428b2edd | 2562 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2563 | } |
2564 | ||
2565 | static enum ofperr | |
2566 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2567 | { | |
2568 | const struct ofp_queue_prop_rate *oqpr; | |
2569 | ||
2570 | if (hdr->len == htons(sizeof *oqpr)) { | |
2571 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2572 | *rate = ntohs(oqpr->rate); | |
2573 | return 0; | |
2574 | } else { | |
2575 | return OFPERR_OFPBRC_BAD_LEN; | |
2576 | } | |
2577 | } | |
2578 | ||
2579 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2580 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2581 | * must already have pulled off the main header. | |
2582 | * | |
2583 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2584 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2585 | * problem decoding 'reply'. */ | |
2586 | int | |
2587 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2588 | struct ofputil_queue_config *queue) | |
2589 | { | |
2590 | const struct ofp_header *oh; | |
2591 | unsigned int opq_len; | |
2592 | unsigned int len; | |
2593 | ||
1f317cb5 | 2594 | if (!ofpbuf_size(reply)) { |
e8f9a7bb VG |
2595 | return EOF; |
2596 | } | |
2597 | ||
2598 | queue->min_rate = UINT16_MAX; | |
2599 | queue->max_rate = UINT16_MAX; | |
2600 | ||
cf3b7538 | 2601 | oh = reply->frame; |
e8f9a7bb VG |
2602 | if (oh->version < OFP12_VERSION) { |
2603 | const struct ofp10_packet_queue *opq10; | |
2604 | ||
2605 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2606 | if (!opq10) { | |
2607 | return OFPERR_OFPBRC_BAD_LEN; | |
2608 | } | |
2609 | queue->queue_id = ntohl(opq10->queue_id); | |
2610 | len = ntohs(opq10->len); | |
2611 | opq_len = sizeof *opq10; | |
2612 | } else { | |
2613 | const struct ofp12_packet_queue *opq12; | |
2614 | ||
2615 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2616 | if (!opq12) { | |
2617 | return OFPERR_OFPBRC_BAD_LEN; | |
2618 | } | |
2619 | queue->queue_id = ntohl(opq12->queue_id); | |
2620 | len = ntohs(opq12->len); | |
2621 | opq_len = sizeof *opq12; | |
2622 | } | |
2623 | ||
1f317cb5 | 2624 | if (len < opq_len || len > ofpbuf_size(reply) + opq_len || len % 8) { |
e8f9a7bb VG |
2625 | return OFPERR_OFPBRC_BAD_LEN; |
2626 | } | |
2627 | len -= opq_len; | |
2628 | ||
2629 | while (len > 0) { | |
2630 | const struct ofp_queue_prop_header *hdr; | |
2631 | unsigned int property; | |
2632 | unsigned int prop_len; | |
2633 | enum ofperr error = 0; | |
2634 | ||
2635 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2636 | prop_len = ntohs(hdr->len); | |
1f317cb5 | 2637 | if (prop_len < sizeof *hdr || prop_len > ofpbuf_size(reply) || prop_len % 8) { |
e8f9a7bb VG |
2638 | return OFPERR_OFPBRC_BAD_LEN; |
2639 | } | |
2640 | ||
2641 | property = ntohs(hdr->property); | |
2642 | switch (property) { | |
2643 | case OFPQT_MIN_RATE: | |
2644 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2645 | break; | |
2646 | ||
2647 | case OFPQT_MAX_RATE: | |
2648 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2649 | break; | |
2650 | ||
2651 | default: | |
2652 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2653 | break; | |
2654 | } | |
2655 | if (error) { | |
2656 | return error; | |
2657 | } | |
2658 | ||
2659 | ofpbuf_pull(reply, prop_len); | |
2660 | len -= prop_len; | |
2661 | } | |
2662 | return 0; | |
2663 | } | |
2664 | ||
2e4f5fcf | 2665 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2666 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2667 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2668 | enum ofperr |
81d1ea94 | 2669 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2670 | const struct ofp_header *oh) |
2e4f5fcf | 2671 | { |
982697a4 | 2672 | enum ofpraw raw; |
2e4f5fcf | 2673 | struct ofpbuf b; |
2e4f5fcf | 2674 | |
2013493b | 2675 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2676 | raw = ofpraw_pull_assert(&b); |
2677 | switch ((int) raw) { | |
cfc23141 | 2678 | case OFPRAW_OFPST10_FLOW_REQUEST: |
1f317cb5 | 2679 | return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), false); |
2e4f5fcf | 2680 | |
617da9cd | 2681 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
1f317cb5 | 2682 | return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), true); |
0157ad3a SH |
2683 | |
2684 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2685 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2686 | |
617da9cd SH |
2687 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2688 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2689 | ||
982697a4 BP |
2690 | case OFPRAW_NXST_FLOW_REQUEST: |
2691 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2692 | |
982697a4 BP |
2693 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2694 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2695 | |
2696 | default: | |
2697 | /* Hey, the caller lied. */ | |
428b2edd | 2698 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2699 | } |
2700 | } | |
2701 | ||
2702 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2703 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2704 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2705 | struct ofpbuf * |
81d1ea94 | 2706 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2707 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2708 | { |
2709 | struct ofpbuf *msg; | |
982697a4 | 2710 | enum ofpraw raw; |
2e4f5fcf | 2711 | |
27527aa0 | 2712 | switch (protocol) { |
75fa58f8 | 2713 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2714 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2715 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2716 | case OFPUTIL_P_OF14_OXM: |
2717 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2718 | struct ofp11_flow_stats_request *ofsr; |
2719 | ||
2720 | raw = (fsr->aggregate | |
617da9cd | 2721 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2722 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2723 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2724 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2725 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2726 | ofsr->table_id = fsr->table_id; | |
2727 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2728 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2729 | ofsr->cookie = fsr->cookie; |
2730 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2731 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2732 | break; |
2733 | } | |
2734 | ||
85813857 BP |
2735 | case OFPUTIL_P_OF10_STD: |
2736 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2737 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2738 | |
982697a4 | 2739 | raw = (fsr->aggregate |
617da9cd | 2740 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2741 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2742 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2743 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2744 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2745 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2746 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2747 | break; |
2748 | } | |
2749 | ||
85813857 BP |
2750 | case OFPUTIL_P_OF10_NXM: |
2751 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2752 | struct nx_flow_stats_request *nfsr; |
2753 | int match_len; | |
2754 | ||
982697a4 BP |
2755 | raw = (fsr->aggregate |
2756 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2757 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2758 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2759 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2760 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2761 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2762 | |
6b8c377a | 2763 | nfsr = ofpbuf_l3(msg); |
4e022ec0 | 2764 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2765 | nfsr->match_len = htons(match_len); |
2766 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2767 | break; |
2768 | } | |
2769 | ||
2770 | default: | |
428b2edd | 2771 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2772 | } |
2773 | ||
2774 | return msg; | |
2775 | } | |
d1e2cf21 | 2776 | |
4ffd1b43 | 2777 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2778 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2779 | * |
2780 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2781 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2782 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2783 | * pointers null and not modify them between calls. | |
2784 | * | |
f27f2134 BP |
2785 | * Most switches don't send the values needed to populate fs->idle_age and |
2786 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2787 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2788 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2789 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2790 | * | |
f25d0cf3 BP |
2791 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2792 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2793 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2794 | * | |
4ffd1b43 BP |
2795 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2796 | * otherwise a positive errno value. */ | |
2797 | int | |
2798 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2799 | struct ofpbuf *msg, |
f25d0cf3 BP |
2800 | bool flow_age_extension, |
2801 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2802 | { |
0fb88c18 | 2803 | const struct ofp_header *oh; |
8f2cded4 | 2804 | size_t instructions_len; |
982697a4 BP |
2805 | enum ofperr error; |
2806 | enum ofpraw raw; | |
4ffd1b43 | 2807 | |
cf3b7538 JR |
2808 | error = (msg->frame |
2809 | ? ofpraw_decode(&raw, msg->frame) | |
982697a4 BP |
2810 | : ofpraw_pull(&raw, msg)); |
2811 | if (error) { | |
2812 | return error; | |
4ffd1b43 | 2813 | } |
cf3b7538 | 2814 | oh = msg->frame; |
4ffd1b43 | 2815 | |
1f317cb5 | 2816 | if (!ofpbuf_size(msg)) { |
4ffd1b43 | 2817 | return EOF; |
2e1ae200 JR |
2818 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2819 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2820 | const struct ofp11_flow_stats *ofs; |
2821 | size_t length; | |
2822 | uint16_t padded_match_len; | |
2823 | ||
2824 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2825 | if (!ofs) { | |
437d0d22 | 2826 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2827 | "bytes at end", ofpbuf_size(msg)); |
6ec5f0c5 SH |
2828 | return EINVAL; |
2829 | } | |
2830 | ||
2831 | length = ntohs(ofs->length); | |
2832 | if (length < sizeof *ofs) { | |
2833 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2834 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2835 | return EINVAL; |
2836 | } | |
2837 | ||
81a76618 | 2838 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2839 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2840 | return EINVAL; | |
2841 | } | |
8f2cded4 | 2842 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2843 | |
81a76618 | 2844 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2845 | fs->table_id = ofs->table_id; |
2846 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2847 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2848 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2849 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2850 | if (oh->version >= OFP14_VERSION) { |
2851 | fs->importance = ntohs(ofs->importance); | |
2852 | } else { | |
2853 | fs->importance = 0; | |
2854 | } | |
0fb88c18 BP |
2855 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2856 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2857 | &fs->flags); | |
2858 | if (error) { | |
2859 | return error; | |
2860 | } | |
2861 | } else { | |
2862 | fs->flags = 0; | |
2863 | } | |
6ec5f0c5 SH |
2864 | fs->idle_age = -1; |
2865 | fs->hard_age = -1; | |
2866 | fs->cookie = ofs->cookie; | |
2867 | fs->packet_count = ntohll(ofs->packet_count); | |
2868 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2869 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2870 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2871 | size_t length; |
2872 | ||
2873 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2874 | if (!ofs) { | |
437d0d22 | 2875 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2876 | "bytes at end", ofpbuf_size(msg)); |
4ffd1b43 BP |
2877 | return EINVAL; |
2878 | } | |
2879 | ||
2880 | length = ntohs(ofs->length); | |
2881 | if (length < sizeof *ofs) { | |
2882 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2883 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2884 | return EINVAL; |
2885 | } | |
8f2cded4 | 2886 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2887 | |
2888 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2889 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2890 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2891 | fs->table_id = ofs->table_id; |
2892 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2893 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2894 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2895 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2896 | fs->importance = 0; |
f27f2134 BP |
2897 | fs->idle_age = -1; |
2898 | fs->hard_age = -1; | |
4ffd1b43 BP |
2899 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2900 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2901 | fs->flags = 0; |
982697a4 | 2902 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2903 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2904 | size_t match_len, length; |
4ffd1b43 BP |
2905 | |
2906 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2907 | if (!nfs) { | |
437d0d22 | 2908 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2909 | "bytes at end", ofpbuf_size(msg)); |
4ffd1b43 BP |
2910 | return EINVAL; |
2911 | } | |
2912 | ||
2913 | length = ntohs(nfs->length); | |
2914 | match_len = ntohs(nfs->match_len); | |
2915 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2916 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2917 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2918 | return EINVAL; |
2919 | } | |
81a76618 | 2920 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2921 | return EINVAL; |
2922 | } | |
8f2cded4 | 2923 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2924 | |
2925 | fs->cookie = nfs->cookie; | |
2926 | fs->table_id = nfs->table_id; | |
2927 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2928 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2929 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2930 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2931 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2932 | fs->importance = 0; |
f27f2134 BP |
2933 | fs->idle_age = -1; |
2934 | fs->hard_age = -1; | |
2935 | if (flow_age_extension) { | |
2936 | if (nfs->idle_age) { | |
2937 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2938 | } | |
2939 | if (nfs->hard_age) { | |
2940 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2941 | } | |
2942 | } | |
4ffd1b43 BP |
2943 | fs->packet_count = ntohll(nfs->packet_count); |
2944 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2945 | fs->flags = 0; |
4ffd1b43 | 2946 | } else { |
428b2edd | 2947 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2948 | } |
2949 | ||
8f2cded4 BP |
2950 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2951 | ofpacts)) { | |
2952 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2953 | return EINVAL; | |
2954 | } | |
1f317cb5 PS |
2955 | fs->ofpacts = ofpbuf_data(ofpacts); |
2956 | fs->ofpacts_len = ofpbuf_size(ofpacts); | |
f25d0cf3 | 2957 | |
4ffd1b43 BP |
2958 | return 0; |
2959 | } | |
2960 | ||
5e9d0469 BP |
2961 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2962 | * | |
2963 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2964 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2965 | static uint64_t | |
2966 | unknown_to_zero(uint64_t count) | |
2967 | { | |
2968 | return count != UINT64_MAX ? count : 0; | |
2969 | } | |
2970 | ||
349adfb2 BP |
2971 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2972 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2973 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2974 | void |
2975 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
2976 | struct list *replies) | |
2977 | { | |
f25d0cf3 | 2978 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
1f317cb5 | 2979 | size_t start_ofs = ofpbuf_size(reply); |
e28ac5cf BP |
2980 | enum ofp_version version = ofpmp_version(replies); |
2981 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 2982 | |
2e1ae200 | 2983 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
2984 | struct ofp11_flow_stats *ofs; |
2985 | ||
2986 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 2987 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
2988 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
2989 | version); | |
22a86f18 SH |
2990 | |
2991 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
1f317cb5 | 2992 | ofs->length = htons(ofpbuf_size(reply) - start_ofs); |
22a86f18 SH |
2993 | ofs->table_id = fs->table_id; |
2994 | ofs->pad = 0; | |
2995 | ofs->duration_sec = htonl(fs->duration_sec); | |
2996 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2997 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
2998 | ofs->idle_timeout = htons(fs->idle_timeout); |
2999 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3000 | if (version >= OFP14_VERSION) { |
3001 | ofs->importance = htons(fs->importance); | |
3002 | } else { | |
3003 | ofs->importance = 0; | |
3004 | } | |
0fb88c18 | 3005 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3006 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3007 | } else { |
3008 | ofs->flags = 0; | |
3009 | } | |
22a86f18 SH |
3010 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3011 | ofs->cookie = fs->cookie; | |
3012 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3013 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3014 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3015 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3016 | |
1a59dc2c | 3017 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3018 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3019 | version); | |
1a59dc2c | 3020 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
1f317cb5 | 3021 | ofs->length = htons(ofpbuf_size(reply) - start_ofs); |
349adfb2 BP |
3022 | ofs->table_id = fs->table_id; |
3023 | ofs->pad = 0; | |
81a76618 | 3024 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3025 | ofs->duration_sec = htonl(fs->duration_sec); |
3026 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3027 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3028 | ofs->idle_timeout = htons(fs->idle_timeout); |
3029 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3030 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3031 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3032 | put_32aligned_be64(&ofs->packet_count, |
3033 | htonll(unknown_to_zero(fs->packet_count))); | |
3034 | put_32aligned_be64(&ofs->byte_count, | |
3035 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3036 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3037 | struct nx_flow_stats *nfs; |
1a59dc2c | 3038 | int match_len; |
349adfb2 | 3039 | |
1a59dc2c | 3040 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3041 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3042 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3043 | version); | |
1a59dc2c | 3044 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
1f317cb5 | 3045 | nfs->length = htons(ofpbuf_size(reply) - start_ofs); |
349adfb2 BP |
3046 | nfs->table_id = fs->table_id; |
3047 | nfs->pad = 0; | |
3048 | nfs->duration_sec = htonl(fs->duration_sec); | |
3049 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3050 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3051 | nfs->idle_timeout = htons(fs->idle_timeout); |
3052 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3053 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3054 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3055 | : UINT16_MAX); | |
3056 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3057 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3058 | : UINT16_MAX); | |
1a59dc2c | 3059 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3060 | nfs->cookie = fs->cookie; |
3061 | nfs->packet_count = htonll(fs->packet_count); | |
3062 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3063 | } else { |
428b2edd | 3064 | OVS_NOT_REACHED(); |
349adfb2 | 3065 | } |
f25d0cf3 | 3066 | |
982697a4 | 3067 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3068 | } |
3069 | ||
76c93b22 | 3070 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3071 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3072 | struct ofpbuf * |
3073 | ofputil_encode_aggregate_stats_reply( | |
3074 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3075 | const struct ofp_header *request) |
76c93b22 | 3076 | { |
a814ba0f BP |
3077 | struct ofp_aggregate_stats_reply *asr; |
3078 | uint64_t packet_count; | |
3079 | uint64_t byte_count; | |
76c93b22 | 3080 | struct ofpbuf *msg; |
982697a4 | 3081 | enum ofpraw raw; |
76c93b22 | 3082 | |
982697a4 | 3083 | ofpraw_decode(&raw, request); |
617da9cd | 3084 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3085 | packet_count = unknown_to_zero(stats->packet_count); |
3086 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3087 | } else { |
a814ba0f BP |
3088 | packet_count = stats->packet_count; |
3089 | byte_count = stats->byte_count; | |
76c93b22 BP |
3090 | } |
3091 | ||
a814ba0f BP |
3092 | msg = ofpraw_alloc_stats_reply(request, 0); |
3093 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3094 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3095 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3096 | asr->flow_count = htonl(stats->flow_count); | |
3097 | ||
76c93b22 BP |
3098 | return msg; |
3099 | } | |
3100 | ||
982697a4 BP |
3101 | enum ofperr |
3102 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3103 | const struct ofp_header *reply) | |
3104 | { | |
a814ba0f | 3105 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3106 | struct ofpbuf msg; |
982697a4 BP |
3107 | |
3108 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3109 | ofpraw_pull_assert(&msg); |
3110 | ||
6b8c377a | 3111 | asr = ofpbuf_l3(&msg); |
a814ba0f BP |
3112 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3113 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3114 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3115 | |
3116 | return 0; | |
3117 | } | |
3118 | ||
b78f6b77 BP |
3119 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3120 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3121 | * an OpenFlow error code. */ | |
90bf1e07 | 3122 | enum ofperr |
9b045a0c | 3123 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3124 | const struct ofp_header *oh) |
9b045a0c | 3125 | { |
982697a4 BP |
3126 | enum ofpraw raw; |
3127 | struct ofpbuf b; | |
9b045a0c | 3128 | |
982697a4 BP |
3129 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3130 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3131 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3132 | const struct ofp12_flow_removed *ofr; | |
3133 | enum ofperr error; | |
3134 | ||
3135 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3136 | ||
81a76618 | 3137 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3138 | if (error) { |
3139 | return error; | |
3140 | } | |
3141 | ||
81a76618 | 3142 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3143 | fr->cookie = ofr->cookie; |
3144 | fr->reason = ofr->reason; | |
95216219 | 3145 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3146 | fr->duration_sec = ntohl(ofr->duration_sec); |
3147 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3148 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3149 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3150 | fr->packet_count = ntohll(ofr->packet_count); | |
3151 | fr->byte_count = ntohll(ofr->byte_count); | |
3152 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3153 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3154 | |
982697a4 BP |
3155 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3156 | ||
81a76618 BP |
3157 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3158 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3159 | fr->cookie = ofr->cookie; |
3160 | fr->reason = ofr->reason; | |
95216219 | 3161 | fr->table_id = 255; |
9b045a0c BP |
3162 | fr->duration_sec = ntohl(ofr->duration_sec); |
3163 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3164 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3165 | fr->hard_timeout = 0; |
9b045a0c BP |
3166 | fr->packet_count = ntohll(ofr->packet_count); |
3167 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3168 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3169 | struct nx_flow_removed *nfr; |
c2725b60 | 3170 | enum ofperr error; |
9b045a0c | 3171 | |
9b045a0c | 3172 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3173 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3174 | NULL, NULL); | |
9b045a0c BP |
3175 | if (error) { |
3176 | return error; | |
3177 | } | |
1f317cb5 | 3178 | if (ofpbuf_size(&b)) { |
90bf1e07 | 3179 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3180 | } |
3181 | ||
81a76618 | 3182 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3183 | fr->cookie = nfr->cookie; |
3184 | fr->reason = nfr->reason; | |
745bfd5e | 3185 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3186 | fr->duration_sec = ntohl(nfr->duration_sec); |
3187 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3188 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3189 | fr->hard_timeout = 0; |
9b045a0c BP |
3190 | fr->packet_count = ntohll(nfr->packet_count); |
3191 | fr->byte_count = ntohll(nfr->byte_count); | |
3192 | } else { | |
428b2edd | 3193 | OVS_NOT_REACHED(); |
9b045a0c BP |
3194 | } |
3195 | ||
3196 | return 0; | |
3197 | } | |
3198 | ||
588cd7b5 | 3199 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3200 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3201 | * message. */ |
3202 | struct ofpbuf * | |
3203 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3204 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3205 | { |
3206 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3207 | enum ofp_flow_removed_reason reason = fr->reason; |
3208 | ||
3209 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3210 | reason = OFPRR_DELETE; | |
3211 | } | |
588cd7b5 | 3212 | |
27527aa0 | 3213 | switch (protocol) { |
75fa58f8 | 3214 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3215 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3216 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3217 | case OFPUTIL_P_OF14_OXM: |
3218 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3219 | struct ofp12_flow_removed *ofr; |
3220 | ||
3221 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3222 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3223 | htonl(0), |
3224 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3225 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3226 | ofr->cookie = fr->cookie; | |
81a76618 | 3227 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3228 | ofr->reason = reason; |
95216219 | 3229 | ofr->table_id = fr->table_id; |
83974732 SH |
3230 | ofr->duration_sec = htonl(fr->duration_sec); |
3231 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3232 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3233 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3234 | ofr->packet_count = htonll(fr->packet_count); |
3235 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3236 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3237 | break; |
3238 | } | |
3239 | ||
85813857 BP |
3240 | case OFPUTIL_P_OF10_STD: |
3241 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3242 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3243 | |
982697a4 BP |
3244 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3245 | htonl(0), 0); | |
3246 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3247 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3248 | ofr->cookie = fr->cookie; |
81a76618 | 3249 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3250 | ofr->reason = reason; |
588cd7b5 BP |
3251 | ofr->duration_sec = htonl(fr->duration_sec); |
3252 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3253 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3254 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3255 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3256 | break; |
3257 | } | |
3258 | ||
85813857 BP |
3259 | case OFPUTIL_P_OF10_NXM: |
3260 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3261 | struct nx_flow_removed *nfr; |
3262 | int match_len; | |
3263 | ||
982697a4 BP |
3264 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3265 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3266 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3267 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3268 | |
6b8c377a | 3269 | nfr = ofpbuf_l3(msg); |
588cd7b5 | 3270 | nfr->cookie = fr->cookie; |
81a76618 | 3271 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3272 | nfr->reason = reason; |
745bfd5e | 3273 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3274 | nfr->duration_sec = htonl(fr->duration_sec); |
3275 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3276 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3277 | nfr->match_len = htons(match_len); | |
3278 | nfr->packet_count = htonll(fr->packet_count); | |
3279 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3280 | break; |
3281 | } | |
3282 | ||
3283 | default: | |
428b2edd | 3284 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3285 | } |
3286 | ||
3287 | return msg; | |
3288 | } | |
3289 | ||
7cfb9651 SH |
3290 | static void |
3291 | ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin, | |
81a76618 | 3292 | struct match *match, struct ofpbuf *b) |
7cfb9651 | 3293 | { |
1f317cb5 PS |
3294 | pin->packet = ofpbuf_data(b); |
3295 | pin->packet_len = ofpbuf_size(b); | |
7cfb9651 | 3296 | |
4e022ec0 | 3297 | pin->fmd.in_port = match->flow.in_port.ofp_port; |
296e07ac | 3298 | pin->fmd.tun_id = match->flow.tunnel.tun_id; |
0ad90c84 JR |
3299 | pin->fmd.tun_src = match->flow.tunnel.ip_src; |
3300 | pin->fmd.tun_dst = match->flow.tunnel.ip_dst; | |
81a76618 BP |
3301 | pin->fmd.metadata = match->flow.metadata; |
3302 | memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs); | |
ac923e91 | 3303 | pin->fmd.pkt_mark = match->flow.pkt_mark; |
7cfb9651 SH |
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; | |
81a76618 | 3320 | struct match match; |
7cfb9651 | 3321 | int error; |
2e1ae200 JR |
3322 | size_t packet_in_size; |
3323 | ||
3324 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3325 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3326 | } else { | |
3327 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3328 | } | |
7cfb9651 | 3329 | |
2e1ae200 | 3330 | opi = ofpbuf_pull(&b, packet_in_size); |
81a76618 | 3331 | error = oxm_pull_match_loose(&b, &match); |
7cfb9651 SH |
3332 | if (error) { |
3333 | return error; | |
3334 | } | |
3335 | ||
3336 | if (!ofpbuf_try_pull(&b, 2)) { | |
3337 | return OFPERR_OFPBRC_BAD_LEN; | |
3338 | } | |
3339 | ||
2e1ae200 JR |
3340 | pin->reason = opi->pi.reason; |
3341 | pin->table_id = opi->pi.table_id; | |
3342 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3343 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3344 | |
2e1ae200 JR |
3345 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3346 | pin->cookie = opi->cookie; | |
3347 | } | |
7cfb9651 | 3348 | |
81a76618 | 3349 | ofputil_decode_packet_in_finish(pin, &match, &b); |
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; | |
1f317cb5 | 3356 | pin->packet_len = ofpbuf_size(&b); |
65120a8a | 3357 | |
4e022ec0 | 3358 | pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port)); |
65120a8a EJ |
3359 | pin->reason = opi->reason; |
3360 | pin->buffer_id = ntohl(opi->buffer_id); | |
3361 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3362 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3363 | const struct ofp11_packet_in *opi; | |
3364 | enum ofperr error; | |
3365 | ||
3366 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3367 | ||
1f317cb5 PS |
3368 | pin->packet = ofpbuf_data(&b); |
3369 | pin->packet_len = ofpbuf_size(&b); | |
4d197ebb BP |
3370 | |
3371 | pin->buffer_id = ntohl(opi->buffer_id); | |
3372 | error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port); | |
3373 | if (error) { | |
3374 | return error; | |
3375 | } | |
3376 | pin->total_len = ntohs(opi->total_len); | |
3377 | pin->reason = opi->reason; | |
3378 | pin->table_id = opi->table_id; | |
982697a4 | 3379 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3380 | const struct nx_packet_in *npi; |
81a76618 | 3381 | struct match match; |
54834960 EJ |
3382 | int error; |
3383 | ||
54834960 | 3384 | npi = ofpbuf_pull(&b, sizeof *npi); |
81a76618 | 3385 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL, |
b5ae8913 | 3386 | NULL); |
54834960 EJ |
3387 | if (error) { |
3388 | return error; | |
3389 | } | |
3390 | ||
3391 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3392 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3393 | } |
3394 | ||
54834960 EJ |
3395 | pin->reason = npi->reason; |
3396 | pin->table_id = npi->table_id; | |
3397 | pin->cookie = npi->cookie; | |
3398 | ||
54834960 EJ |
3399 | pin->buffer_id = ntohl(npi->buffer_id); |
3400 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3401 | |
81a76618 | 3402 | ofputil_decode_packet_in_finish(pin, &match, &b); |
65120a8a | 3403 | } else { |
428b2edd | 3404 | OVS_NOT_REACHED(); |
65120a8a EJ |
3405 | } |
3406 | ||
3407 | return 0; | |
3408 | } | |
3409 | ||
d94240ec | 3410 | static void |
81a76618 BP |
3411 | ofputil_packet_in_to_match(const struct ofputil_packet_in *pin, |
3412 | struct match *match) | |
d94240ec SH |
3413 | { |
3414 | int i; | |
3415 | ||
81a76618 | 3416 | match_init_catchall(match); |
42edbe39 | 3417 | if (pin->fmd.tun_id != htonll(0)) { |
81a76618 | 3418 | match_set_tun_id(match, pin->fmd.tun_id); |
42edbe39 | 3419 | } |
0ad90c84 JR |
3420 | if (pin->fmd.tun_src != htonl(0)) { |
3421 | match_set_tun_src(match, pin->fmd.tun_src); | |
3422 | } | |
3423 | if (pin->fmd.tun_dst != htonl(0)) { | |
3424 | match_set_tun_dst(match, pin->fmd.tun_dst); | |
3425 | } | |
42edbe39 | 3426 | if (pin->fmd.metadata != htonll(0)) { |
81a76618 | 3427 | match_set_metadata(match, pin->fmd.metadata); |
42edbe39 | 3428 | } |
d94240ec SH |
3429 | |
3430 | for (i = 0; i < FLOW_N_REGS; i++) { | |
42edbe39 | 3431 | if (pin->fmd.regs[i]) { |
81a76618 | 3432 | match_set_reg(match, i, pin->fmd.regs[i]); |
42edbe39 | 3433 | } |
d94240ec SH |
3434 | } |
3435 | ||
ac923e91 JG |
3436 | if (pin->fmd.pkt_mark != 0) { |
3437 | match_set_pkt_mark(match, pin->fmd.pkt_mark); | |
3438 | } | |
3439 | ||
81a76618 | 3440 | match_set_in_port(match, pin->fmd.in_port); |
d94240ec SH |
3441 | } |
3442 | ||
0f83fea0 BP |
3443 | static struct ofpbuf * |
3444 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3445 | { | |
3446 | struct ofp10_packet_in *opi; | |
3447 | struct ofpbuf *packet; | |
3448 | ||
3449 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3450 | htonl(0), pin->packet_len); | |
3451 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3452 | opi->total_len = htons(pin->total_len); | |
3453 | opi->in_port = htons(ofp_to_u16(pin->fmd.in_port)); | |
3454 | opi->reason = pin->reason; | |
3455 | opi->buffer_id = htonl(pin->buffer_id); | |
3456 | ||
3457 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3458 | ||
3459 | return packet; | |
3460 | } | |
3461 | ||
3462 | static struct ofpbuf * | |
3463 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3464 | { | |
3465 | struct nx_packet_in *npi; | |
3466 | struct ofpbuf *packet; | |
3467 | struct match match; | |
3468 | size_t match_len; | |
3469 | ||
3470 | ofputil_packet_in_to_match(pin, &match); | |
3471 | ||
3472 | /* The final argument is just an estimate of the space required. */ | |
3473 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
3474 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3475 | + 2 + pin->packet_len)); | |
3476 | ofpbuf_put_zeros(packet, sizeof *npi); | |
3477 | match_len = nx_put_match(packet, &match, 0, 0); | |
3478 | ofpbuf_put_zeros(packet, 2); | |
3479 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3480 | ||
6b8c377a | 3481 | npi = ofpbuf_l3(packet); |
0f83fea0 BP |
3482 | npi->buffer_id = htonl(pin->buffer_id); |
3483 | npi->total_len = htons(pin->total_len); | |
3484 | npi->reason = pin->reason; | |
3485 | npi->table_id = pin->table_id; | |
3486 | npi->cookie = pin->cookie; | |
3487 | npi->match_len = htons(match_len); | |
3488 | ||
3489 | return packet; | |
3490 | } | |
3491 | ||
4d197ebb BP |
3492 | static struct ofpbuf * |
3493 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3494 | { | |
3495 | struct ofp11_packet_in *opi; | |
3496 | struct ofpbuf *packet; | |
3497 | ||
3498 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3499 | htonl(0), pin->packet_len); | |
3500 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3501 | opi->buffer_id = htonl(pin->buffer_id); | |
3502 | opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port); | |
3503 | opi->in_phy_port = opi->in_port; | |
3504 | opi->total_len = htons(pin->total_len); | |
3505 | opi->reason = pin->reason; | |
3506 | opi->table_id = pin->table_id; | |
3507 | ||
3508 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3509 | ||
3510 | return packet; | |
3511 | } | |
3512 | ||
0f83fea0 BP |
3513 | static struct ofpbuf * |
3514 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3515 | enum ofputil_protocol protocol) | |
3516 | { | |
3517 | struct ofp13_packet_in *opi; | |
3518 | struct match match; | |
3519 | enum ofpraw packet_in_raw; | |
3520 | enum ofp_version packet_in_version; | |
3521 | size_t packet_in_size; | |
3522 | struct ofpbuf *packet; | |
3523 | ||
3524 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3525 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3526 | packet_in_version = OFP12_VERSION; | |
3527 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3528 | } else { | |
3529 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
3530 | packet_in_version = OFP13_VERSION; | |
3531 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3532 | } | |
3533 | ||
3534 | ofputil_packet_in_to_match(pin, &match); | |
3535 | ||
3536 | /* The final argument is just an estimate of the space required. */ | |
3537 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
3538 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3539 | + 2 + pin->packet_len)); | |
3540 | ofpbuf_put_zeros(packet, packet_in_size); | |
9d84066c | 3541 | oxm_put_match(packet, &match, ofputil_protocol_to_ofp_version(protocol)); |
0f83fea0 BP |
3542 | ofpbuf_put_zeros(packet, 2); |
3543 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3544 | ||
6b8c377a | 3545 | opi = ofpbuf_l3(packet); |
0f83fea0 BP |
3546 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3547 | opi->pi.total_len = htons(pin->total_len); | |
3548 | opi->pi.reason = pin->reason; | |
3549 | opi->pi.table_id = pin->table_id; | |
3550 | if (protocol == OFPUTIL_P_OF13_OXM) { | |
3551 | opi->cookie = pin->cookie; | |
3552 | } | |
3553 | ||
3554 | return packet; | |
3555 | } | |
3556 | ||
54834960 EJ |
3557 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3558 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3559 | struct ofpbuf * |
54834960 | 3560 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3561 | enum ofputil_protocol protocol, |
54834960 | 3562 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3563 | { |
54834960 | 3564 | struct ofpbuf *packet; |
ebb57021 | 3565 | |
0f83fea0 BP |
3566 | switch (protocol) { |
3567 | case OFPUTIL_P_OF10_STD: | |
3568 | case OFPUTIL_P_OF10_STD_TID: | |
3569 | case OFPUTIL_P_OF10_NXM: | |
3570 | case OFPUTIL_P_OF10_NXM_TID: | |
3571 | packet = (packet_in_format == NXPIF_NXM | |
3572 | ? ofputil_encode_nx_packet_in(pin) | |
3573 | : ofputil_encode_ofp10_packet_in(pin)); | |
3574 | break; | |
2e1ae200 | 3575 | |
0f83fea0 | 3576 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3577 | packet = ofputil_encode_ofp11_packet_in(pin); |
3578 | break; | |
d94240ec | 3579 | |
0f83fea0 BP |
3580 | case OFPUTIL_P_OF12_OXM: |
3581 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3582 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3583 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3584 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3585 | break; | |
3586 | ||
3587 | default: | |
428b2edd | 3588 | OVS_NOT_REACHED(); |
54834960 | 3589 | } |
54834960 | 3590 | |
0f83fea0 | 3591 | ofpmsg_update_length(packet); |
54834960 | 3592 | return packet; |
ebb57021 BP |
3593 | } |
3594 | ||
5014a89d BP |
3595 | /* Returns a string form of 'reason'. The return value is either a statically |
3596 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3597 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3598 | const char * |
5014a89d BP |
3599 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3600 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3601 | { |
7c1a76a4 BP |
3602 | switch (reason) { |
3603 | case OFPR_NO_MATCH: | |
3604 | return "no_match"; | |
3605 | case OFPR_ACTION: | |
3606 | return "action"; | |
3607 | case OFPR_INVALID_TTL: | |
3608 | return "invalid_ttl"; | |
424467c6 SS |
3609 | case OFPR_ACTION_SET: |
3610 | return "action_set"; | |
3611 | case OFPR_GROUP: | |
3612 | return "group"; | |
3613 | case OFPR_PACKET_OUT: | |
3614 | return "packet_out"; | |
7c1a76a4 BP |
3615 | |
3616 | case OFPR_N_REASONS: | |
3617 | default: | |
5014a89d BP |
3618 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3619 | return reasonbuf; | |
7c1a76a4 BP |
3620 | } |
3621 | } | |
3622 | ||
3623 | bool | |
3624 | ofputil_packet_in_reason_from_string(const char *s, | |
3625 | enum ofp_packet_in_reason *reason) | |
3626 | { | |
3627 | int i; | |
3628 | ||
3629 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3630 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3631 | const char *reason_s; | |
3632 | ||
3633 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3634 | sizeof reasonbuf); | |
3635 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3636 | *reason = i; |
3637 | return true; | |
3638 | } | |
3639 | } | |
3640 | return false; | |
3641 | } | |
3642 | ||
f25d0cf3 BP |
3643 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3644 | * 'po'. | |
3645 | * | |
3646 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3647 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3648 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3649 | * | |
3650 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3651 | enum ofperr |
3652 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3653 | const struct ofp_header *oh, |
f25d0cf3 | 3654 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3655 | { |
982697a4 | 3656 | enum ofpraw raw; |
c6a93eb7 BP |
3657 | struct ofpbuf b; |
3658 | ||
982697a4 BP |
3659 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3660 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3661 | |
eb5ee596 SH |
3662 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3663 | enum ofperr error; | |
3664 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3665 | ||
3666 | po->buffer_id = ntohl(opo->buffer_id); | |
3667 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3668 | if (error) { | |
3669 | return error; | |
3670 | } | |
3671 | ||
e3f8f887 JR |
3672 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3673 | oh->version, ofpacts); | |
eb5ee596 SH |
3674 | if (error) { |
3675 | return error; | |
3676 | } | |
eb5ee596 | 3677 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3678 | enum ofperr error; |
31a9e63f | 3679 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3680 | |
3681 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3682 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3683 | |
e3f8f887 JR |
3684 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3685 | oh->version, ofpacts); | |
8a6bc7cd SH |
3686 | if (error) { |
3687 | return error; | |
3688 | } | |
3689 | } else { | |
428b2edd | 3690 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3691 | } |
3692 | ||
4e022ec0 AW |
3693 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3694 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3695 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3696 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3697 | po->in_port); | |
2e1bfcb6 | 3698 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3699 | } |
3700 | ||
1f317cb5 PS |
3701 | po->ofpacts = ofpbuf_data(ofpacts); |
3702 | po->ofpacts_len = ofpbuf_size(ofpacts); | |
c6a93eb7 BP |
3703 | |
3704 | if (po->buffer_id == UINT32_MAX) { | |
1f317cb5 PS |
3705 | po->packet = ofpbuf_data(&b); |
3706 | po->packet_len = ofpbuf_size(&b); | |
c6a93eb7 BP |
3707 | } else { |
3708 | po->packet = NULL; | |
3709 | po->packet_len = 0; | |
3710 | } | |
3711 | ||
3712 | return 0; | |
3713 | } | |
6c038611 BP |
3714 | \f |
3715 | /* ofputil_phy_port */ | |
3716 | ||
3717 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3718 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3719 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3720 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3721 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3722 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3723 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3724 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3725 | ||
3726 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3727 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3728 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3729 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3730 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3731 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3732 | |
9e1fd49b BP |
3733 | static enum netdev_features |
3734 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3735 | { |
3736 | uint32_t ofp10 = ntohl(ofp10_); | |
3737 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3738 | } | |
3739 | ||
9e1fd49b BP |
3740 | static ovs_be32 |
3741 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3742 | { |
3743 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3744 | } | |
c6a93eb7 | 3745 | |
9e1fd49b BP |
3746 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3747 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3748 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3749 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3750 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3751 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3752 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3753 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3754 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3755 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3756 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3757 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3758 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3759 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3760 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3761 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3762 | ||
3763 | static enum netdev_features | |
3764 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3765 | { | |
3766 | return ntohl(ofp11) & 0xffff; | |
3767 | } | |
3768 | ||
3769 | static ovs_be32 | |
3770 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3771 | { | |
3772 | return htonl(features & 0xffff); | |
3773 | } | |
3774 | ||
3775 | static enum ofperr | |
3776 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3777 | const struct ofp10_phy_port *opp) | |
3778 | { | |
4e022ec0 | 3779 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3780 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3781 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3782 | ||
3783 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3784 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3785 | ||
3786 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3787 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3788 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3789 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3790 | ||
d02a5f8e BP |
3791 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3792 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3793 | |
3794 | return 0; | |
3795 | } | |
3796 | ||
3797 | static enum ofperr | |
3798 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3799 | const struct ofp11_port *op) | |
3800 | { | |
3801 | enum ofperr error; | |
3802 | ||
9e1fd49b BP |
3803 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3804 | if (error) { | |
3805 | return error; | |
3806 | } | |
3807 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3808 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3809 | ||
3810 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3811 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3812 | |
3813 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3814 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3815 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3816 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3817 | ||
3818 | pp->curr_speed = ntohl(op->curr_speed); | |
3819 | pp->max_speed = ntohl(op->max_speed); | |
3820 | ||
3821 | return 0; | |
3822 | } | |
3823 | ||
8c3cc785 BP |
3824 | static enum ofperr |
3825 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3826 | struct ofputil_phy_port *pp) | |
3827 | { | |
3828 | struct ofp14_port_desc_prop_ethernet *eth = ofpbuf_data(payload); | |
3829 | ||
3830 | if (ofpbuf_size(payload) != sizeof *eth) { | |
3831 | return OFPERR_OFPBPC_BAD_LEN; | |
3832 | } | |
3833 | ||
3834 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3835 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3836 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3837 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3838 | ||
3839 | pp->curr_speed = ntohl(eth->curr_speed); | |
3840 | pp->max_speed = ntohl(eth->max_speed); | |
3841 | ||
3842 | return 0; | |
3843 | } | |
3844 | ||
3845 | static enum ofperr | |
3846 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3847 | { | |
3848 | struct ofpbuf properties; | |
3849 | struct ofp14_port *op; | |
3850 | enum ofperr error; | |
3851 | size_t len; | |
3852 | ||
3853 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3854 | if (!op) { | |
3855 | return OFPERR_OFPBRC_BAD_LEN; | |
3856 | } | |
3857 | ||
3858 | len = ntohs(op->length); | |
3859 | if (len < sizeof *op || len - sizeof *op > ofpbuf_size(msg)) { | |
3860 | return OFPERR_OFPBRC_BAD_LEN; | |
3861 | } | |
3862 | len -= sizeof *op; | |
3863 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3864 | ||
3865 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3866 | if (error) { | |
3867 | return error; | |
3868 | } | |
3869 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3870 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3871 | ||
3872 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3873 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3874 | ||
3875 | while (ofpbuf_size(&properties) > 0) { | |
3876 | struct ofpbuf payload; | |
3877 | enum ofperr error; | |
3878 | uint16_t type; | |
3879 | ||
3880 | error = ofputil_pull_property(&properties, &payload, &type); | |
3881 | if (error) { | |
3882 | return error; | |
3883 | } | |
3884 | ||
3885 | switch (type) { | |
3886 | case OFPPDPT14_ETHERNET: | |
3887 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3888 | break; | |
3889 | ||
3890 | default: | |
3891 | log_property(true, "unknown port property %"PRIu16, type); | |
3892 | error = 0; | |
3893 | break; | |
3894 | } | |
3895 | ||
3896 | if (error) { | |
3897 | return error; | |
3898 | } | |
3899 | } | |
3900 | ||
3901 | return 0; | |
3902 | } | |
3903 | ||
9e1fd49b BP |
3904 | static void |
3905 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3906 | struct ofp10_phy_port *opp) | |
3907 | { | |
3908 | memset(opp, 0, sizeof *opp); | |
3909 | ||
4e022ec0 | 3910 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3911 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3912 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3913 | ||
3914 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3915 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3916 | ||
3917 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3918 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3919 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3920 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3921 | } | |
3922 | ||
3923 | static void | |
3924 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3925 | struct ofp11_port *op) | |
3926 | { | |
3927 | memset(op, 0, sizeof *op); | |
3928 | ||
3929 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3930 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3931 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3932 | ||
3933 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3934 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3935 | ||
3936 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3937 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3938 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3939 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3940 | ||
3941 | op->curr_speed = htonl(pp->curr_speed); | |
3942 | op->max_speed = htonl(pp->max_speed); | |
3943 | } | |
3944 | ||
8c3cc785 BP |
3945 | static void |
3946 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3947 | struct ofpbuf *b) | |
3948 | { | |
3949 | struct ofp14_port *op; | |
3950 | struct ofp14_port_desc_prop_ethernet *eth; | |
3951 | ||
3952 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3953 | ||
3954 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3955 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3956 | op->length = htons(sizeof *op + sizeof *eth); | |
3957 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3958 | ovs_strlcpy(op->name, pp->name, sizeof op->name); | |
3959 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3960 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3961 | ||
3962 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
3963 | eth->type = htons(OFPPDPT14_ETHERNET); | |
3964 | eth->length = htons(sizeof *eth); | |
3965 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
3966 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3967 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3968 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3969 | eth->curr_speed = htonl(pp->curr_speed); | |
3970 | eth->max_speed = htonl(pp->max_speed); | |
3971 | } | |
3972 | ||
9e1fd49b | 3973 | static void |
2e3fa633 SH |
3974 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3975 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3976 | { |
2e3fa633 SH |
3977 | switch (ofp_version) { |
3978 | case OFP10_VERSION: { | |
6b0f20ac BP |
3979 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3980 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
3981 | break; |
3982 | } | |
3983 | ||
3984 | case OFP11_VERSION: | |
2e1ae200 JR |
3985 | case OFP12_VERSION: |
3986 | case OFP13_VERSION: { | |
6b0f20ac BP |
3987 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
3988 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
3989 | break; |
3990 | } | |
3991 | ||
c37c0382 | 3992 | case OFP14_VERSION: |
42dccab5 | 3993 | case OFP15_VERSION: |
8c3cc785 | 3994 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
3995 | break; |
3996 | ||
2e3fa633 | 3997 | default: |
428b2edd | 3998 | OVS_NOT_REACHED(); |
9e1fd49b BP |
3999 | } |
4000 | } | |
2be393ed | 4001 | |
70ae4f93 BP |
4002 | enum ofperr |
4003 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4004 | ofp_port_t *port) | |
4005 | { | |
4006 | struct ofpbuf b; | |
4007 | enum ofpraw raw; | |
4008 | ||
4009 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
4010 | raw = ofpraw_pull_assert(&b); | |
4011 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
4012 | *port = OFPP_ANY; | |
4013 | return 0; | |
4014 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4015 | ovs_be32 *ofp11_port; | |
4016 | ||
4017 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4018 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4019 | } else { | |
4020 | OVS_NOT_REACHED(); | |
4021 | } | |
4022 | } | |
4023 | ||
4024 | struct ofpbuf * | |
4025 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4026 | ofp_port_t port) | |
4027 | { | |
4028 | struct ofpbuf *request; | |
4029 | ovs_be32 ofp11_port; | |
4030 | ||
4031 | switch (ofp_version) { | |
4032 | case OFP10_VERSION: | |
4033 | case OFP11_VERSION: | |
4034 | case OFP12_VERSION: | |
4035 | case OFP13_VERSION: | |
4036 | case OFP14_VERSION: | |
4037 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4038 | ofp_version, 0); | |
4039 | break; | |
4040 | ||
4041 | case OFP15_VERSION: | |
4042 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, | |
4043 | ofp_version, 0); | |
4044 | ofp11_port = ofputil_port_to_ofp11(port); | |
4045 | ofpbuf_put(request, &ofp11_port, sizeof ofp11_port); | |
4046 | break; | |
4047 | ||
4048 | default: | |
4049 | OVS_NOT_REACHED(); | |
4050 | } | |
4051 | ||
4052 | return request; | |
4053 | } | |
4054 | ||
2be393ed | 4055 | void |
e28ac5cf | 4056 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
2be393ed JP |
4057 | struct list *replies) |
4058 | { | |
6b0f20ac BP |
4059 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
4060 | size_t start_ofs = ofpbuf_size(reply); | |
c37c0382 | 4061 | |
6b0f20ac BP |
4062 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4063 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4064 | } |
9e1fd49b BP |
4065 | \f |
4066 | /* ofputil_switch_features */ | |
4067 | ||
4068 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4069 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4070 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4071 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4072 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4073 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4074 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4075 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4076 | ||
60202987 SH |
4077 | static uint32_t |
4078 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4079 | { | |
0746a84f | 4080 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4081 | switch (ofp_version) { |
4082 | case OFP10_VERSION: | |
4083 | case OFP11_VERSION: | |
4084 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4085 | case OFP12_VERSION: | |
2e1ae200 | 4086 | case OFP13_VERSION: |
c37c0382 | 4087 | case OFP14_VERSION: |
42dccab5 | 4088 | case OFP15_VERSION: |
18cc69d9 | 4089 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4090 | default: |
4091 | /* Caller needs to check osf->header.version itself */ | |
4092 | return 0; | |
4093 | } | |
4094 | } | |
4095 | ||
9e1fd49b BP |
4096 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4097 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4098 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4099 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4100 | * OFPERR_* value. */ |
4101 | enum ofperr | |
982697a4 | 4102 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4103 | struct ofputil_switch_features *features, |
4104 | struct ofpbuf *b) | |
4105 | { | |
982697a4 BP |
4106 | const struct ofp_switch_features *osf; |
4107 | enum ofpraw raw; | |
4108 | ||
4109 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4110 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4111 | |
982697a4 | 4112 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4113 | features->datapath_id = ntohll(osf->datapath_id); |
4114 | features->n_buffers = ntohl(osf->n_buffers); | |
4115 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4116 | features->auxiliary_id = 0; |
9e1fd49b | 4117 | |
60202987 SH |
4118 | features->capabilities = ntohl(osf->capabilities) & |
4119 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4120 | |
982697a4 | 4121 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4122 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4123 | features->capabilities |= OFPUTIL_C_STP; | |
4124 | } | |
08d1e234 BP |
4125 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4126 | OFP10_VERSION); | |
2e1ae200 JR |
4127 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4128 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4129 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4130 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4131 | } | |
08d1e234 | 4132 | features->ofpacts = 0; |
2e1ae200 JR |
4133 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4134 | features->auxiliary_id = osf->auxiliary_id; | |
4135 | } | |
9e1fd49b BP |
4136 | } else { |
4137 | return OFPERR_OFPBRC_BAD_VERSION; | |
4138 | } | |
4139 | ||
4140 | return 0; | |
4141 | } | |
4142 | ||
fca6d553 BP |
4143 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4144 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4145 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4146 | * | |
4147 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4148 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4149 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4150 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4151 | * message. | |
4152 | * | |
4153 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4154 | * stats request to get the ports. */ | |
347b7ac4 | 4155 | bool |
fca6d553 | 4156 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4157 | { |
1f317cb5 | 4158 | struct ofp_header *oh = ofpbuf_data(b); |
13e1aff8 | 4159 | size_t phy_port_size; |
347b7ac4 | 4160 | |
fca6d553 | 4161 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4162 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4163 | return false; |
13e1aff8 BP |
4164 | } |
4165 | ||
4166 | phy_port_size = (oh->version == OFP10_VERSION | |
4167 | ? sizeof(struct ofp10_phy_port) | |
4168 | : sizeof(struct ofp11_port)); | |
4169 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4170 | /* There's room for additional ports in the feature reply. | |
4171 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4172 | return true; |
4173 | } | |
13e1aff8 BP |
4174 | |
4175 | /* The feature reply has no room for more ports. Probably the list is | |
4176 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4177 | * OFPST_PORT_DESC. */ | |
4178 | ofpbuf_set_size(b, sizeof *oh + sizeof(struct ofp_switch_features)); | |
4179 | ofpmsg_update_length(b); | |
4180 | return false; | |
347b7ac4 JP |
4181 | } |
4182 | ||
9e1fd49b BP |
4183 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4184 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4185 | * information to the buffer with subsequent calls to | |
4186 | * ofputil_put_switch_features_port(). */ | |
4187 | struct ofpbuf * | |
4188 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4189 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4190 | { | |
4191 | struct ofp_switch_features *osf; | |
4192 | struct ofpbuf *b; | |
2e3fa633 SH |
4193 | enum ofp_version version; |
4194 | enum ofpraw raw; | |
982697a4 BP |
4195 | |
4196 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4197 | switch (version) { |
4198 | case OFP10_VERSION: | |
4199 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4200 | break; | |
4201 | case OFP11_VERSION: | |
4202 | case OFP12_VERSION: | |
4203 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4204 | break; | |
2e1ae200 | 4205 | case OFP13_VERSION: |
c37c0382 | 4206 | case OFP14_VERSION: |
42dccab5 | 4207 | case OFP15_VERSION: |
2e1ae200 JR |
4208 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4209 | break; | |
2e3fa633 | 4210 | default: |
428b2edd | 4211 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4212 | } |
4213 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4214 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4215 | osf->datapath_id = htonll(features->datapath_id); |
4216 | osf->n_buffers = htonl(features->n_buffers); | |
4217 | osf->n_tables = features->n_tables; | |
4218 | ||
4219 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4220 | osf->capabilities = htonl(features->capabilities & |
4221 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4222 | switch (version) { |
4223 | case OFP10_VERSION: | |
9e1fd49b BP |
4224 | if (features->capabilities & OFPUTIL_C_STP) { |
4225 | osf->capabilities |= htonl(OFPC10_STP); | |
4226 | } | |
08d1e234 BP |
4227 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4228 | OFP10_VERSION); | |
2e3fa633 | 4229 | break; |
2e1ae200 | 4230 | case OFP13_VERSION: |
c37c0382 | 4231 | case OFP14_VERSION: |
42dccab5 | 4232 | case OFP15_VERSION: |
2e1ae200 JR |
4233 | osf->auxiliary_id = features->auxiliary_id; |
4234 | /* fall through */ | |
2e3fa633 SH |
4235 | case OFP11_VERSION: |
4236 | case OFP12_VERSION: | |
9e1fd49b BP |
4237 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4238 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4239 | } | |
2e3fa633 SH |
4240 | break; |
4241 | default: | |
428b2edd | 4242 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4243 | } |
4244 | ||
4245 | return b; | |
4246 | } | |
4247 | ||
4248 | /* Encodes 'pp' into the format required by the switch_features message already | |
4249 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4250 | * and appends the encoded version to 'b'. */ | |
4251 | void | |
4252 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4253 | struct ofpbuf *b) | |
4254 | { | |
1f317cb5 | 4255 | const struct ofp_header *oh = ofpbuf_data(b); |
9e1fd49b | 4256 | |
e0c91c0c | 4257 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4258 | /* Try adding a port description to the message, but drop it again if |
4259 | * the buffer overflows. (This possibility for overflow is why | |
4260 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
4261 | size_t start_ofs = ofpbuf_size(b); | |
e0c91c0c | 4262 | ofputil_put_phy_port(oh->version, pp, b); |
6b0f20ac BP |
4263 | if (ofpbuf_size(b) > UINT16_MAX) { |
4264 | ofpbuf_set_size(b, start_ofs); | |
4265 | } | |
e0c91c0c | 4266 | } |
9e1fd49b BP |
4267 | } |
4268 | \f | |
4269 | /* ofputil_port_status */ | |
4270 | ||
4271 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4272 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4273 | enum ofperr | |
982697a4 | 4274 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4275 | struct ofputil_port_status *ps) |
4276 | { | |
982697a4 | 4277 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4278 | struct ofpbuf b; |
4279 | int retval; | |
4280 | ||
982697a4 BP |
4281 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4282 | ofpraw_pull_assert(&b); | |
4283 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4284 | ||
9e1fd49b BP |
4285 | if (ops->reason != OFPPR_ADD && |
4286 | ops->reason != OFPPR_DELETE && | |
4287 | ops->reason != OFPPR_MODIFY) { | |
4288 | return OFPERR_NXBRC_BAD_REASON; | |
4289 | } | |
4290 | ps->reason = ops->reason; | |
4291 | ||
982697a4 | 4292 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4293 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4294 | return retval; |
4295 | } | |
4296 | ||
4297 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4298 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4299 | * a buffer owned by the caller. */ | |
4300 | struct ofpbuf * | |
4301 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4302 | enum ofputil_protocol protocol) | |
4303 | { | |
4304 | struct ofp_port_status *ops; | |
4305 | struct ofpbuf *b; | |
2e3fa633 SH |
4306 | enum ofp_version version; |
4307 | enum ofpraw raw; | |
982697a4 BP |
4308 | |
4309 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4310 | switch (version) { |
4311 | case OFP10_VERSION: | |
4312 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4313 | break; | |
4314 | ||
4315 | case OFP11_VERSION: | |
4316 | case OFP12_VERSION: | |
2e1ae200 | 4317 | case OFP13_VERSION: |
2e3fa633 SH |
4318 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4319 | break; | |
4320 | ||
8c3cc785 | 4321 | case OFP14_VERSION: |
42dccab5 | 4322 | case OFP15_VERSION: |
8c3cc785 BP |
4323 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4324 | break; | |
4325 | ||
2e3fa633 | 4326 | default: |
428b2edd | 4327 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4328 | } |
4329 | ||
4330 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4331 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4332 | ops->reason = ps->reason; |
982697a4 BP |
4333 | ofputil_put_phy_port(version, &ps->desc, b); |
4334 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4335 | return b; |
4336 | } | |
918f2b82 | 4337 | |
9e1fd49b BP |
4338 | /* ofputil_port_mod */ |
4339 | ||
18cc69d9 BP |
4340 | static enum ofperr |
4341 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4342 | struct ofputil_port_mod *pm) | |
4343 | { | |
4344 | struct ofp14_port_mod_prop_ethernet *eth = ofpbuf_data(property); | |
4345 | ||
4346 | if (ofpbuf_size(property) != sizeof *eth) { | |
4347 | return OFPERR_OFPBRC_BAD_LEN; | |
4348 | } | |
4349 | ||
4350 | pm->advertise = netdev_port_features_from_ofp11(eth->advertise); | |
4351 | return 0; | |
4352 | } | |
4353 | ||
9e1fd49b BP |
4354 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4355 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4356 | enum ofperr | |
4357 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4358 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4359 | { |
982697a4 BP |
4360 | enum ofpraw raw; |
4361 | struct ofpbuf b; | |
9e1fd49b | 4362 | |
982697a4 BP |
4363 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4364 | raw = ofpraw_pull_assert(&b); | |
4365 | ||
4366 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
1f317cb5 | 4367 | const struct ofp10_port_mod *opm = ofpbuf_data(&b); |
9e1fd49b | 4368 | |
4e022ec0 | 4369 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
4370 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
4371 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
4372 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4373 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4374 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
1f317cb5 | 4375 | const struct ofp11_port_mod *opm = ofpbuf_data(&b); |
9e1fd49b BP |
4376 | enum ofperr error; |
4377 | ||
9e1fd49b BP |
4378 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4379 | if (error) { | |
4380 | return error; | |
4381 | } | |
4382 | ||
4383 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4384 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4385 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4386 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4387 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4388 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4389 | enum ofperr error; | |
4390 | ||
4391 | memset(pm, 0, sizeof *pm); | |
4392 | ||
4393 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4394 | if (error) { | |
4395 | return error; | |
4396 | } | |
4397 | ||
4398 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4399 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4400 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4401 | ||
4402 | while (ofpbuf_size(&b) > 0) { | |
4403 | struct ofpbuf property; | |
4404 | enum ofperr error; | |
4405 | uint16_t type; | |
4406 | ||
4407 | error = ofputil_pull_property(&b, &property, &type); | |
4408 | if (error) { | |
4409 | return error; | |
4410 | } | |
4411 | ||
4412 | switch (type) { | |
4413 | case OFPPMPT14_ETHERNET: | |
4414 | error = parse_port_mod_ethernet_property(&property, pm); | |
4415 | break; | |
4416 | ||
4417 | default: | |
4418 | log_property(loose, "unknown port_mod property %"PRIu16, type); | |
4419 | if (loose) { | |
4420 | error = 0; | |
4421 | } else if (type == OFPPMPT14_EXPERIMENTER) { | |
4422 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
4423 | } else { | |
4424 | error = OFPERR_OFPBRC_BAD_TYPE; | |
4425 | } | |
4426 | break; | |
4427 | } | |
4428 | ||
4429 | if (error) { | |
4430 | return error; | |
4431 | } | |
4432 | } | |
9e1fd49b | 4433 | } else { |
982697a4 | 4434 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4435 | } |
4436 | ||
4437 | pm->config &= pm->mask; | |
4438 | return 0; | |
4439 | } | |
4440 | ||
4441 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4442 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4443 | * owned by the caller. */ | |
4444 | struct ofpbuf * | |
4445 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4446 | enum ofputil_protocol protocol) | |
4447 | { | |
2e3fa633 | 4448 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4449 | struct ofpbuf *b; |
4450 | ||
2e3fa633 SH |
4451 | switch (ofp_version) { |
4452 | case OFP10_VERSION: { | |
9e1fd49b BP |
4453 | struct ofp10_port_mod *opm; |
4454 | ||
982697a4 BP |
4455 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4456 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4457 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4458 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4459 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4460 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4461 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4462 | break; |
4463 | } | |
4464 | ||
5fe7c919 | 4465 | case OFP11_VERSION: |
2e1ae200 JR |
4466 | case OFP12_VERSION: |
4467 | case OFP13_VERSION: { | |
9e1fd49b BP |
4468 | struct ofp11_port_mod *opm; |
4469 | ||
982697a4 BP |
4470 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4471 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4472 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4473 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4474 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4475 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4476 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4477 | break; |
4478 | } | |
42dccab5 BP |
4479 | case OFP14_VERSION: |
4480 | case OFP15_VERSION: { | |
18cc69d9 BP |
4481 | struct ofp14_port_mod_prop_ethernet *eth; |
4482 | struct ofp14_port_mod *opm; | |
4483 | ||
4484 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth); | |
4485 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4486 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
4487 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); | |
4488 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4489 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4490 | ||
4491 | if (pm->advertise) { | |
4492 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
4493 | eth->type = htons(OFPPMPT14_ETHERNET); | |
4494 | eth->length = htons(sizeof *eth); | |
4495 | eth->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
4496 | } | |
c37c0382 | 4497 | break; |
18cc69d9 | 4498 | } |
918f2b82 | 4499 | default: |
428b2edd | 4500 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4501 | } |
4502 | ||
4503 | return b; | |
4504 | } | |
72b25867 BP |
4505 | \f |
4506 | /* Table features. */ | |
918f2b82 | 4507 | |
5deff5aa | 4508 | static enum ofperr |
9a4eddbb | 4509 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
72b25867 | 4510 | uint16_t *typep) |
5deff5aa | 4511 | { |
9a4eddbb | 4512 | enum ofperr error; |
5deff5aa | 4513 | |
9a4eddbb BP |
4514 | error = ofputil_pull_property(msg, payload, typep); |
4515 | if (payload && !error) { | |
4516 | ofpbuf_pull(payload, sizeof(struct ofp_prop_header)); | |
5deff5aa | 4517 | } |
9a4eddbb | 4518 | return error; |
5deff5aa AW |
4519 | } |
4520 | ||
4521 | static enum ofperr | |
08d1e234 BP |
4522 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4523 | uint64_t *ofpacts) | |
5deff5aa | 4524 | { |
08d1e234 | 4525 | uint32_t types = 0; |
5deff5aa | 4526 | |
1f317cb5 | 4527 | while (ofpbuf_size(payload) > 0) { |
08d1e234 BP |
4528 | uint16_t type; |
4529 | enum ofperr error; | |
4530 | ||
72b25867 | 4531 | error = ofputil_pull_property__(payload, NULL, 1, &type); |
5deff5aa AW |
4532 | if (error) { |
4533 | return error; | |
4534 | } | |
08d1e234 BP |
4535 | if (type < CHAR_BIT * sizeof types) { |
4536 | types |= 1u << type; | |
5deff5aa AW |
4537 | } |
4538 | } | |
08d1e234 BP |
4539 | |
4540 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4541 | return 0; |
4542 | } | |
4543 | ||
4544 | static enum ofperr | |
4545 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4546 | { | |
4547 | *insts = 0; | |
1f317cb5 | 4548 | while (ofpbuf_size(payload) > 0) { |
5deff5aa AW |
4549 | enum ovs_instruction_type inst; |
4550 | enum ofperr error; | |
4551 | uint16_t ofpit; | |
4552 | ||
72b25867 BP |
4553 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4554 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4555 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4556 | * and do not mention any padding before the first instruction ID. | |
4557 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4558 | * aligned on an odd 4-byte boundary.) | |
4559 | * | |
4560 | * Anyway, we just assume they're all glommed together on byte | |
4561 | * boundaries. */ | |
4562 | error = ofputil_pull_property__(payload, NULL, 1, &ofpit); | |
5deff5aa AW |
4563 | if (error) { |
4564 | return error; | |
4565 | } | |
4566 | ||
4567 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4568 | if (!error) { | |
4569 | *insts |= 1u << inst; | |
4570 | } else if (!loose) { | |
4571 | return error; | |
4572 | } | |
4573 | } | |
4574 | return 0; | |
4575 | } | |
4576 | ||
4577 | static enum ofperr | |
4578 | parse_table_features_next_table(struct ofpbuf *payload, | |
4579 | unsigned long int *next_tables) | |
4580 | { | |
4581 | size_t i; | |
4582 | ||
4583 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
1f317cb5 PS |
4584 | for (i = 0; i < ofpbuf_size(payload); i++) { |
4585 | uint8_t id = ((const uint8_t *) ofpbuf_data(payload))[i]; | |
5deff5aa | 4586 | if (id >= 255) { |
9a4eddbb | 4587 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4588 | } |
4589 | bitmap_set1(next_tables, id); | |
4590 | } | |
4591 | return 0; | |
4592 | } | |
4593 | ||
5deff5aa AW |
4594 | static enum ofperr |
4595 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4596 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4597 | { |
abadfcb0 BP |
4598 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4599 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4600 | |
1f317cb5 | 4601 | while (ofpbuf_size(payload) > 0) { |
5deff5aa AW |
4602 | const struct mf_field *field; |
4603 | enum ofperr error; | |
4604 | bool hasmask; | |
4605 | ||
178742f9 | 4606 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4607 | if (!error) { |
abadfcb0 | 4608 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4609 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4610 | return error; | |
4611 | } | |
4612 | } | |
4613 | if (exactp) { | |
4614 | *exactp = exact; | |
abadfcb0 | 4615 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4616 | return OFPERR_OFPBMC_BAD_MASK; |
4617 | } | |
4618 | if (maskedp) { | |
4619 | *maskedp = masked; | |
abadfcb0 | 4620 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4621 | return OFPERR_OFPBMC_BAD_MASK; |
4622 | } | |
4623 | return 0; | |
4624 | } | |
4625 | ||
4626 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4627 | * ofputil_table_features in 'tf'. | |
4628 | * | |
4629 | * If 'loose' is true, this function ignores properties and values that it does | |
4630 | * not understand, as a controller would want to do when interpreting | |
4631 | * capabilities provided by a switch. If 'loose' is false, this function | |
4632 | * treats unknown properties and values as an error, as a switch would want to | |
4633 | * do when interpreting a configuration request made by a controller. | |
4634 | * | |
4635 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4636 | * this function multiple times for a single 'msg' iterates through the tables | |
4637 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4638 | * and not modify them between calls. | |
4639 | * | |
4640 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4641 | * a positive "enum ofperr" value. */ | |
4642 | int | |
4643 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4644 | struct ofputil_table_features *tf, bool loose) | |
4645 | { | |
08d1e234 | 4646 | const struct ofp_header *oh; |
5deff5aa | 4647 | struct ofp13_table_features *otf; |
ae665de5 | 4648 | struct ofpbuf properties; |
5deff5aa AW |
4649 | unsigned int len; |
4650 | ||
3c1bb396 BP |
4651 | memset(tf, 0, sizeof *tf); |
4652 | ||
cf3b7538 | 4653 | if (!msg->frame) { |
5deff5aa AW |
4654 | ofpraw_pull_assert(msg); |
4655 | } | |
08d1e234 | 4656 | oh = ofpbuf_l2(msg); |
5deff5aa | 4657 | |
1f317cb5 | 4658 | if (!ofpbuf_size(msg)) { |
5deff5aa AW |
4659 | return EOF; |
4660 | } | |
4661 | ||
1f317cb5 | 4662 | if (ofpbuf_size(msg) < sizeof *otf) { |
9a4eddbb | 4663 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4664 | } |
4665 | ||
1f317cb5 | 4666 | otf = ofpbuf_data(msg); |
5deff5aa | 4667 | len = ntohs(otf->length); |
1f317cb5 | 4668 | if (len < sizeof *otf || len % 8 || len > ofpbuf_size(msg)) { |
9a4eddbb | 4669 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4670 | } |
ae665de5 BP |
4671 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4672 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4673 | |
4674 | tf->table_id = otf->table_id; | |
4675 | if (tf->table_id == OFPTT_ALL) { | |
4676 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4677 | } | |
4678 | ||
4679 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4680 | tf->metadata_match = otf->metadata_match; | |
4681 | tf->metadata_write = otf->metadata_write; | |
3c1bb396 | 4682 | tf->miss_config = ofputil_table_miss_from_config(otf->config, oh->version); |
5deff5aa AW |
4683 | tf->max_entries = ntohl(otf->max_entries); |
4684 | ||
ae665de5 | 4685 | while (ofpbuf_size(&properties) > 0) { |
5deff5aa AW |
4686 | struct ofpbuf payload; |
4687 | enum ofperr error; | |
4688 | uint16_t type; | |
4689 | ||
ae665de5 | 4690 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4691 | if (error) { |
4692 | return error; | |
4693 | } | |
4694 | ||
4695 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4696 | case OFPTFPT13_INSTRUCTIONS: | |
4697 | error = parse_instruction_ids(&payload, loose, | |
4698 | &tf->nonmiss.instructions); | |
4699 | break; | |
4700 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4701 | error = parse_instruction_ids(&payload, loose, | |
4702 | &tf->miss.instructions); | |
4703 | break; | |
4704 | ||
4705 | case OFPTFPT13_NEXT_TABLES: | |
4706 | error = parse_table_features_next_table(&payload, | |
4707 | tf->nonmiss.next); | |
4708 | break; | |
4709 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4710 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4711 | break; | |
4712 | ||
4713 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4714 | error = parse_action_bitmap(&payload, oh->version, |
4715 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4716 | break; |
4717 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4718 | error = parse_action_bitmap(&payload, oh->version, |
4719 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4720 | break; |
4721 | ||
4722 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4723 | error = parse_action_bitmap(&payload, oh->version, |
4724 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4725 | break; |
4726 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4727 | error = parse_action_bitmap(&payload, oh->version, |
4728 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4729 | break; |
4730 | ||
4731 | case OFPTFPT13_MATCH: | |
4732 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4733 | break; | |
4734 | case OFPTFPT13_WILDCARDS: | |
4735 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4736 | break; | |
4737 | ||
4738 | case OFPTFPT13_WRITE_SETFIELD: | |
4739 | error = parse_oxms(&payload, loose, | |
4740 | &tf->nonmiss.write.set_fields, NULL); | |
4741 | break; | |
4742 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4743 | error = parse_oxms(&payload, loose, | |
4744 | &tf->miss.write.set_fields, NULL); | |
4745 | break; | |
4746 | case OFPTFPT13_APPLY_SETFIELD: | |
4747 | error = parse_oxms(&payload, loose, | |
4748 | &tf->nonmiss.apply.set_fields, NULL); | |
4749 | break; | |
4750 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4751 | error = parse_oxms(&payload, loose, | |
4752 | &tf->miss.apply.set_fields, NULL); | |
4753 | break; | |
4754 | ||
4755 | case OFPTFPT13_EXPERIMENTER: | |
4756 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb BP |
4757 | default: |
4758 | log_property(loose, "unknown table features property %"PRIu16, | |
4759 | type); | |
4760 | error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE; | |
5deff5aa AW |
4761 | break; |
4762 | } | |
4763 | if (error) { | |
4764 | return error; | |
4765 | } | |
4766 | } | |
4767 | ||
4768 | /* Fix inconsistencies: | |
4769 | * | |
e7227821 BP |
4770 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4771 | * fields are matchable. | |
5deff5aa AW |
4772 | * |
4773 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4774 | * that is arbitrarily maskable can be wildcarded entirely. |
4775 | * | |
4776 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4777 | * must be matchable for it to be meaningfully wildcarded. */ | |
4778 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4779 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4780 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4781 | |
4782 | return 0; | |
4783 | } | |
4784 | ||
4785 | /* Encodes and returns a request to obtain the table features of a switch. | |
4786 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4787 | struct ofpbuf * | |
4788 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4789 | { | |
4790 | struct ofpbuf *request = NULL; | |
4791 | ||
4792 | switch (ofp_version) { | |
4793 | case OFP10_VERSION: | |
4794 | case OFP11_VERSION: | |
4795 | case OFP12_VERSION: | |
4796 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4797 | "(\'-O OpenFlow13\')"); | |
4798 | case OFP13_VERSION: | |
4799 | case OFP14_VERSION: | |
42dccab5 | 4800 | case OFP15_VERSION: |
5deff5aa AW |
4801 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4802 | ofp_version, 0); | |
4803 | break; | |
4804 | default: | |
4805 | OVS_NOT_REACHED(); | |
4806 | } | |
4807 | ||
4808 | return request; | |
4809 | } | |
4810 | ||
3c4e10fb BP |
4811 | static void |
4812 | put_fields_property(struct ofpbuf *reply, | |
4813 | const struct mf_bitmap *fields, | |
4814 | const struct mf_bitmap *masks, | |
4815 | enum ofp13_table_feature_prop_type property, | |
4816 | enum ofp_version version) | |
4817 | { | |
4818 | size_t start_ofs; | |
4819 | int field; | |
4820 | ||
4821 | start_ofs = start_property(reply, property); | |
4822 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { | |
178742f9 BP |
4823 | nx_put_header(reply, field, version, |
4824 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb BP |
4825 | } |
4826 | end_property(reply, start_ofs); | |
4827 | } | |
4828 | ||
4829 | static void | |
4830 | put_table_action_features(struct ofpbuf *reply, | |
4831 | const struct ofputil_table_action_features *taf, | |
4832 | enum ofp13_table_feature_prop_type actions_type, | |
4833 | enum ofp13_table_feature_prop_type set_fields_type, | |
4834 | int miss_offset, enum ofp_version version) | |
4835 | { | |
4836 | size_t start_ofs; | |
4837 | ||
4838 | start_ofs = start_property(reply, actions_type + miss_offset); | |
4839 | put_bitmap_properties(reply, | |
4840 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4841 | version))); | |
4842 | end_property(reply, start_ofs); | |
4843 | ||
4844 | put_fields_property(reply, &taf->set_fields, NULL, | |
4845 | set_fields_type + miss_offset, version); | |
4846 | } | |
4847 | ||
4848 | static void | |
4849 | put_table_instruction_features( | |
4850 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4851 | int miss_offset, enum ofp_version version) | |
4852 | { | |
4853 | size_t start_ofs; | |
4854 | uint8_t table_id; | |
4855 | ||
4856 | start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset); | |
4857 | put_bitmap_properties(reply, | |
4858 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4859 | version))); | |
4860 | end_property(reply, start_ofs); | |
4861 | ||
4862 | start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset); | |
4863 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { | |
4864 | ofpbuf_put(reply, &table_id, 1); | |
4865 | } | |
4866 | end_property(reply, start_ofs); | |
4867 | ||
4868 | put_table_action_features(reply, &tif->write, | |
4869 | OFPTFPT13_WRITE_ACTIONS, | |
4870 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4871 | put_table_action_features(reply, &tif->apply, | |
4872 | OFPTFPT13_APPLY_ACTIONS, | |
4873 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4874 | } | |
4875 | ||
4876 | void | |
4877 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
4878 | struct list *replies) | |
4879 | { | |
4880 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4881 | enum ofp_version version = ofpmp_version(replies); | |
4882 | size_t start_ofs = ofpbuf_size(reply); | |
4883 | struct ofp13_table_features *otf; | |
4884 | ||
4885 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4886 | otf->table_id = tf->table_id; | |
4887 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4888 | otf->metadata_match = tf->metadata_match; | |
4889 | otf->metadata_write = tf->metadata_write; | |
4890 | otf->config = ofputil_table_miss_to_config(tf->miss_config, version); | |
4891 | otf->max_entries = htonl(tf->max_entries); | |
4892 | ||
4893 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4894 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4895 | ||
4896 | put_fields_property(reply, &tf->match, &tf->mask, | |
4897 | OFPTFPT13_MATCH, version); | |
4898 | put_fields_property(reply, &tf->wildcard, NULL, | |
4899 | OFPTFPT13_WILDCARDS, version); | |
4900 | ||
4901 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
4902 | otf->length = htons(ofpbuf_size(reply) - start_ofs); | |
4903 | ofpmp_postappend(replies, start_ofs); | |
4904 | } | |
4905 | ||
918f2b82 AZ |
4906 | /* ofputil_table_mod */ |
4907 | ||
3c1bb396 BP |
4908 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
4909 | * table configuration (a table mod, table stats, or table features message), | |
4910 | * returns the table miss configuration that it specifies. */ | |
4911 | static enum ofputil_table_miss | |
4912 | ofputil_table_miss_from_config(ovs_be32 config_, enum ofp_version version) | |
4913 | { | |
4914 | uint32_t config = ntohl(config_); | |
4915 | ||
4916 | if (version < OFP13_VERSION) { | |
4917 | switch (config & OFPTC11_TABLE_MISS_MASK) { | |
4918 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
4919 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4920 | ||
4921 | case OFPTC11_TABLE_MISS_CONTINUE: | |
4922 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
4923 | ||
4924 | case OFPTC11_TABLE_MISS_DROP: | |
4925 | return OFPUTIL_TABLE_MISS_DROP; | |
4926 | ||
4927 | default: | |
4928 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
4929 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4930 | } | |
4931 | } else { | |
4932 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
4933 | } | |
4934 | } | |
4935 | ||
4936 | /* Given a table miss configuration, returns the corresponding OpenFlow table | |
4937 | * configuration for use in an OpenFlow message of the given 'version'. */ | |
4938 | ovs_be32 | |
4939 | ofputil_table_miss_to_config(enum ofputil_table_miss miss, | |
4940 | enum ofp_version version) | |
4941 | { | |
4942 | if (version < OFP13_VERSION) { | |
4943 | switch (miss) { | |
4944 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
4945 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
4946 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
4947 | ||
4948 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
4949 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
4950 | ||
4951 | case OFPUTIL_TABLE_MISS_DROP: | |
4952 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
4953 | ||
4954 | default: | |
4955 | OVS_NOT_REACHED(); | |
4956 | } | |
4957 | } else { | |
4958 | return htonl(0); | |
4959 | } | |
4960 | } | |
4961 | ||
918f2b82 AZ |
4962 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
4963 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4964 | enum ofperr | |
4965 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4966 | struct ofputil_table_mod *pm) | |
4967 | { | |
4968 | enum ofpraw raw; | |
4969 | struct ofpbuf b; | |
4970 | ||
4971 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4972 | raw = ofpraw_pull_assert(&b); | |
4973 | ||
4974 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
1f317cb5 | 4975 | const struct ofp11_table_mod *otm = ofpbuf_data(&b); |
918f2b82 AZ |
4976 | |
4977 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4978 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4979 | oh->version); | |
37ab26e8 BP |
4980 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
4981 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
4982 | ||
4983 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4984 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4985 | oh->version); | |
37ab26e8 BP |
4986 | /* We do not understand any properties yet, so we do not bother |
4987 | * parsing them. */ | |
918f2b82 AZ |
4988 | } else { |
4989 | return OFPERR_OFPBRC_BAD_TYPE; | |
4990 | } | |
4991 | ||
4992 | return 0; | |
4993 | } | |
4994 | ||
4995 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
4996 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4997 | * owned by the caller. */ | |
4998 | struct ofpbuf * | |
4999 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
5000 | enum ofputil_protocol protocol) | |
5001 | { | |
5002 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5003 | struct ofpbuf *b; | |
5004 | ||
5005 | switch (ofp_version) { | |
5006 | case OFP10_VERSION: { | |
5007 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5008 | "(\'-O OpenFlow11\')"); | |
5009 | break; | |
5010 | } | |
5011 | case OFP11_VERSION: | |
5012 | case OFP12_VERSION: | |
5013 | case OFP13_VERSION: { | |
5014 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5015 | |
918f2b82 AZ |
5016 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5017 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
5018 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
5019 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
5020 | ofp_version); | |
918f2b82 AZ |
5021 | break; |
5022 | } | |
42dccab5 BP |
5023 | case OFP14_VERSION: |
5024 | case OFP15_VERSION: { | |
37ab26e8 BP |
5025 | struct ofp14_table_mod *otm; |
5026 | ||
5027 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5028 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
5029 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
5030 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
5031 | ofp_version); | |
c37c0382 | 5032 | break; |
37ab26e8 | 5033 | } |
2e3fa633 | 5034 | default: |
428b2edd | 5035 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5036 | } |
5037 | ||
5038 | return b; | |
5039 | } | |
2b07c8b1 | 5040 | \f |
6ea4776b JR |
5041 | /* ofputil_role_request */ |
5042 | ||
5043 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5044 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5045 | * OFPERR_* value. */ | |
5046 | enum ofperr | |
5047 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5048 | struct ofputil_role_request *rr) | |
5049 | { | |
6ea4776b JR |
5050 | struct ofpbuf b; |
5051 | enum ofpraw raw; | |
5052 | ||
6ea4776b JR |
5053 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5054 | raw = ofpraw_pull_assert(&b); | |
5055 | ||
f4f1ea7e BP |
5056 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5057 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6b8c377a | 5058 | const struct ofp12_role_request *orr = ofpbuf_l3(&b); |
6ea4776b | 5059 | |
f4f1ea7e BP |
5060 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5061 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5062 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5063 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5064 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5065 | } |
5066 | ||
f4f1ea7e | 5067 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5068 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5069 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5070 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5071 | rr->have_generation_id = false; |
5072 | rr->generation_id = 0; | |
5073 | } else { | |
5074 | rr->have_generation_id = true; | |
5075 | rr->generation_id = ntohll(orr->generation_id); | |
5076 | } | |
5077 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5078 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6b8c377a | 5079 | const struct nx_role_request *nrr = ofpbuf_l3(&b); |
f4f1ea7e BP |
5080 | |
5081 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5082 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5083 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5084 | ||
5085 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5086 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5087 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5088 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5089 | } | |
6ea4776b | 5090 | |
f4f1ea7e BP |
5091 | rr->role = ntohl(nrr->role) + 1; |
5092 | rr->have_generation_id = false; | |
5093 | rr->generation_id = 0; | |
5094 | } else { | |
428b2edd | 5095 | OVS_NOT_REACHED(); |
6ea4776b JR |
5096 | } |
5097 | ||
6ea4776b JR |
5098 | return 0; |
5099 | } | |
5100 | ||
5101 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5102 | * buffer owned by the caller. */ | |
5103 | struct ofpbuf * | |
5104 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5105 | const struct ofputil_role_request *rr) |
6ea4776b | 5106 | { |
6ea4776b | 5107 | struct ofpbuf *buf; |
6ea4776b JR |
5108 | enum ofpraw raw; |
5109 | ||
f4f1ea7e | 5110 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5111 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5112 | struct ofp12_role_request *orr; |
6ea4776b | 5113 | |
f4f1ea7e BP |
5114 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5115 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5116 | |
147cc9d3 BP |
5117 | orr->role = htonl(rr->role); |
5118 | orr->generation_id = htonll(rr->have_generation_id | |
5119 | ? rr->generation_id | |
5120 | : UINT64_MAX); | |
f4f1ea7e BP |
5121 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5122 | struct nx_role_request *nrr; | |
5123 | ||
5124 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5125 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5126 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5127 | ||
5128 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5129 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5130 | nrr->role = htonl(rr->role - 1); | |
5131 | } else { | |
428b2edd | 5132 | OVS_NOT_REACHED(); |
6ea4776b | 5133 | } |
6ea4776b JR |
5134 | |
5135 | return buf; | |
5136 | } | |
5137 | \f | |
6751a4b4 BP |
5138 | /* Encodes "role status" message 'status' for sending in the given |
5139 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5140 | * otherwise a null pointer. */ | |
00467f73 AC |
5141 | struct ofpbuf * |
5142 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5143 | enum ofputil_protocol protocol) | |
5144 | { | |
00467f73 | 5145 | enum ofp_version version; |
00467f73 AC |
5146 | |
5147 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5148 | if (version >= OFP14_VERSION) { |
5149 | struct ofp14_role_status *rstatus; | |
5150 | struct ofpbuf *buf; | |
5151 | ||
5152 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5153 | 0); | |
5154 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5155 | rstatus->role = htonl(status->role); | |
5156 | rstatus->reason = status->reason; | |
5157 | rstatus->generation_id = htonll(status->generation_id); | |
5158 | ||
5159 | return buf; | |
5160 | } else { | |
5161 | return NULL; | |
5162 | } | |
00467f73 AC |
5163 | } |
5164 | ||
5165 | enum ofperr | |
5166 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5167 | struct ofputil_role_status *rs) | |
5168 | { | |
5169 | struct ofpbuf b; | |
5170 | enum ofpraw raw; | |
5171 | const struct ofp14_role_status *r; | |
5172 | ||
5173 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5174 | raw = ofpraw_pull_assert(&b); | |
5175 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5176 | ||
6b8c377a | 5177 | r = ofpbuf_l3(&b); |
00467f73 AC |
5178 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5179 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5180 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5181 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5182 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5183 | } | |
5184 | ||
5185 | rs->role = ntohl(r->role); | |
5186 | rs->generation_id = ntohll(r->generation_id); | |
5187 | rs->reason = r->reason; | |
5188 | ||
5189 | return 0; | |
5190 | } | |
5191 | ||
307975da SH |
5192 | /* Table stats. */ |
5193 | ||
3c1bb396 BP |
5194 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5195 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5196 | * that contains both kinds of fields. */ | |
5197 | static struct mf_bitmap | |
5198 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5199 | { | |
5200 | struct mf_bitmap wc = features->match; | |
5201 | bitmap_not(wc.bm, MFF_N_IDS); | |
5202 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5203 | return wc; | |
5204 | } | |
5205 | ||
5206 | struct ofp10_wc_map { | |
5207 | enum ofp10_flow_wildcards wc10; | |
5208 | enum mf_field_id mf; | |
5209 | }; | |
5210 | ||
5211 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5212 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5213 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5214 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5215 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5216 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5217 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5218 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5219 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5220 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5221 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5222 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5223 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5224 | }; | |
5225 | ||
5226 | static ovs_be32 | |
5227 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5228 | { | |
5229 | const struct ofp10_wc_map *p; | |
5230 | uint32_t wc10 = 0; | |
5231 | ||
5232 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5233 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5234 | wc10 |= p->wc10; | |
5235 | } | |
5236 | } | |
5237 | return htonl(wc10); | |
5238 | } | |
5239 | ||
5240 | static struct mf_bitmap | |
5241 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5242 | { | |
5243 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5244 | const struct ofp10_wc_map *p; | |
5245 | uint32_t wc10 = ntohl(wc10_); | |
5246 | ||
5247 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5248 | if (wc10 & p->wc10) { | |
5249 | bitmap_set1(fields.bm, p->mf); | |
5250 | } | |
5251 | } | |
5252 | return fields; | |
5253 | } | |
5254 | ||
307975da | 5255 | static void |
3c1bb396 BP |
5256 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5257 | const struct ofputil_table_features *features, | |
307975da SH |
5258 | struct ofpbuf *buf) |
5259 | { | |
3c1bb396 | 5260 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5261 | struct ofp10_table_stats *out; |
307975da | 5262 | |
3bdc692b | 5263 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5264 | out->table_id = features->table_id; |
5265 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5266 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5267 | out->max_entries = htonl(features->max_entries); | |
5268 | out->active_count = htonl(stats->active_count); | |
5269 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5270 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5271 | } | |
5272 | ||
5273 | struct ofp11_wc_map { | |
5274 | enum ofp11_flow_match_fields wc11; | |
5275 | enum mf_field_id mf; | |
5276 | }; | |
5277 | ||
5278 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5279 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5280 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5281 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5282 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5283 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5284 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5285 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5286 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5287 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5288 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5289 | /* I don't know what OFPFMF11_TYPE means. */ | |
5290 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5291 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5292 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5293 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5294 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5295 | }; | |
5296 | ||
5297 | static ovs_be32 | |
5298 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5299 | { | |
5300 | const struct ofp11_wc_map *p; | |
5301 | uint32_t wc11 = 0; | |
5302 | ||
5303 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5304 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5305 | wc11 |= p->wc11; | |
307975da SH |
5306 | } |
5307 | } | |
3c1bb396 | 5308 | return htonl(wc11); |
307975da SH |
5309 | } |
5310 | ||
3c1bb396 BP |
5311 | static struct mf_bitmap |
5312 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5313 | { | |
5314 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5315 | const struct ofp11_wc_map *p; | |
5316 | uint32_t wc11 = ntohl(wc11_); | |
5317 | ||
5318 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5319 | if (wc11 & p->wc11) { | |
5320 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5321 | } |
5322 | } | |
3c1bb396 | 5323 | return fields; |
307975da SH |
5324 | } |
5325 | ||
5326 | static void | |
3c1bb396 BP |
5327 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5328 | const struct ofputil_table_features *features, | |
307975da SH |
5329 | struct ofpbuf *buf) |
5330 | { | |
3c1bb396 | 5331 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5332 | struct ofp11_table_stats *out; |
5333 | ||
3bdc692b | 5334 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5335 | out->table_id = features->table_id; |
5336 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5337 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5338 | out->match = mf_bitmap_to_of11(&features->match); | |
5339 | out->instructions = ovsinst_bitmap_to_openflow( | |
5340 | features->nonmiss.instructions, OFP11_VERSION); | |
5341 | out->write_actions = ofpact_bitmap_to_openflow( | |
5342 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5343 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5344 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5345 | out->config = htonl(features->miss_config); | |
5346 | out->max_entries = htonl(features->max_entries); | |
5347 | out->active_count = htonl(stats->active_count); | |
5348 | out->lookup_count = htonll(stats->lookup_count); | |
5349 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5350 | } |
5351 | ||
6240624b | 5352 | static void |
3c1bb396 BP |
5353 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5354 | const struct ofputil_table_features *features, | |
6240624b BP |
5355 | struct ofpbuf *buf) |
5356 | { | |
08d1e234 | 5357 | struct ofp12_table_stats *out; |
6240624b | 5358 | |
08d1e234 | 5359 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5360 | out->table_id = features->table_id; |
5361 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
5362 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
5363 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
5364 | OFP12_VERSION); |
5365 | out->write_actions = ofpact_bitmap_to_openflow( | |
5366 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5367 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5368 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 5369 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 5370 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 5371 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
5372 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
5373 | out->metadata_match = features->metadata_match; | |
5374 | out->metadata_write = features->metadata_write; | |
5375 | out->instructions = ovsinst_bitmap_to_openflow( | |
5376 | features->nonmiss.instructions, OFP12_VERSION); | |
5377 | out->config = ofputil_table_miss_to_config(features->miss_config, | |
5378 | OFP12_VERSION); | |
5379 | out->max_entries = htonl(features->max_entries); | |
5380 | out->active_count = htonl(stats->active_count); | |
5381 | out->lookup_count = htonll(stats->lookup_count); | |
5382 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5383 | } |
5384 | ||
2e1ae200 | 5385 | static void |
3c1bb396 | 5386 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5387 | struct ofpbuf *buf) |
5388 | { | |
5389 | struct ofp13_table_stats *out; | |
5390 | ||
3c1bb396 BP |
5391 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5392 | out->table_id = stats->table_id; | |
5393 | out->active_count = htonl(stats->active_count); | |
5394 | out->lookup_count = htonll(stats->lookup_count); | |
5395 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5396 | } |
5397 | ||
307975da | 5398 | struct ofpbuf * |
3c1bb396 | 5399 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5400 | { |
3c1bb396 BP |
5401 | return ofpraw_alloc_stats_reply(request, 0); |
5402 | } | |
307975da | 5403 | |
3c1bb396 BP |
5404 | void |
5405 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5406 | const struct ofputil_table_stats *stats, | |
5407 | const struct ofputil_table_features *features) | |
5408 | { | |
5409 | struct ofp_header *oh = ofpbuf_l2(reply); | |
307975da | 5410 | |
3c1bb396 | 5411 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5412 | |
3c1bb396 BP |
5413 | switch ((enum ofp_version) oh->version) { |
5414 | case OFP10_VERSION: | |
5415 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5416 | break; | |
307975da | 5417 | |
3c1bb396 BP |
5418 | case OFP11_VERSION: |
5419 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5420 | break; | |
307975da | 5421 | |
3c1bb396 BP |
5422 | case OFP12_VERSION: |
5423 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5424 | break; | |
2e1ae200 | 5425 | |
3c1bb396 BP |
5426 | case OFP13_VERSION: |
5427 | case OFP14_VERSION: | |
5428 | case OFP15_VERSION: | |
5429 | ofputil_put_ofp13_table_stats(stats, reply); | |
5430 | break; | |
5431 | ||
5432 | default: | |
5433 | OVS_NOT_REACHED(); | |
307975da | 5434 | } |
3c1bb396 | 5435 | } |
307975da | 5436 | |
3c1bb396 BP |
5437 | static int |
5438 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5439 | struct ofputil_table_stats *stats, | |
5440 | struct ofputil_table_features *features) | |
5441 | { | |
5442 | struct ofp10_table_stats *ots; | |
5443 | ||
5444 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5445 | if (!ots) { | |
5446 | return OFPERR_OFPBRC_BAD_LEN; | |
5447 | } | |
5448 | ||
5449 | features->table_id = ots->table_id; | |
5450 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5451 | features->max_entries = ntohl(ots->max_entries); | |
5452 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
5453 | ||
5454 | stats->table_id = ots->table_id; | |
5455 | stats->active_count = ntohl(ots->active_count); | |
5456 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
5457 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
5458 | ||
5459 | return 0; | |
5460 | } | |
5461 | ||
5462 | static int | |
5463 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
5464 | struct ofputil_table_stats *stats, | |
5465 | struct ofputil_table_features *features) | |
5466 | { | |
5467 | struct ofp11_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->max_entries = ntohl(ots->max_entries); | |
5477 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5478 | ots->instructions, OFP11_VERSION); | |
5479 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5480 | ots->write_actions, OFP11_VERSION); | |
5481 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5482 | ots->write_actions, OFP11_VERSION); | |
5483 | features->miss = features->nonmiss; | |
5484 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5485 | OFP11_VERSION); | |
5486 | features->match = mf_bitmap_from_of11(ots->match); | |
5487 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
5488 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5489 | ||
5490 | stats->table_id = ots->table_id; | |
5491 | stats->active_count = ntohl(ots->active_count); | |
5492 | stats->lookup_count = ntohll(ots->lookup_count); | |
5493 | stats->matched_count = ntohll(ots->matched_count); | |
5494 | ||
5495 | return 0; | |
5496 | } | |
5497 | ||
5498 | static int | |
5499 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
5500 | struct ofputil_table_stats *stats, | |
5501 | struct ofputil_table_features *features) | |
5502 | { | |
5503 | struct ofp12_table_stats *ots; | |
5504 | ||
5505 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5506 | if (!ots) { | |
5507 | return OFPERR_OFPBRC_BAD_LEN; | |
5508 | } | |
5509 | ||
5510 | features->table_id = ots->table_id; | |
5511 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5512 | features->metadata_match = ots->metadata_match; | |
5513 | features->metadata_write = ots->metadata_write; | |
5514 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5515 | OFP12_VERSION); | |
5516 | features->max_entries = ntohl(ots->max_entries); | |
5517 | ||
5518 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5519 | ots->instructions, OFP12_VERSION); | |
5520 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5521 | ots->write_actions, OFP12_VERSION); | |
5522 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5523 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 5524 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 5525 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 5526 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
5527 | ots->apply_setfields, OFP12_VERSION); |
5528 | features->miss = features->nonmiss; | |
5529 | ||
178742f9 BP |
5530 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
5531 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
5532 | OFP12_VERSION); | |
3c1bb396 BP |
5533 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
5534 | ||
5535 | stats->table_id = ots->table_id; | |
5536 | stats->active_count = ntohl(ots->active_count); | |
5537 | stats->lookup_count = ntohll(ots->lookup_count); | |
5538 | stats->matched_count = ntohll(ots->matched_count); | |
5539 | ||
5540 | return 0; | |
5541 | } | |
5542 | ||
5543 | static int | |
5544 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
5545 | struct ofputil_table_stats *stats, | |
5546 | struct ofputil_table_features *features) | |
5547 | { | |
5548 | struct ofp13_table_stats *ots; | |
5549 | ||
5550 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5551 | if (!ots) { | |
5552 | return OFPERR_OFPBRC_BAD_LEN; | |
5553 | } | |
5554 | ||
5555 | features->table_id = ots->table_id; | |
5556 | ||
5557 | stats->table_id = ots->table_id; | |
5558 | stats->active_count = ntohl(ots->active_count); | |
5559 | stats->lookup_count = ntohll(ots->lookup_count); | |
5560 | stats->matched_count = ntohll(ots->matched_count); | |
5561 | ||
5562 | return 0; | |
5563 | } | |
5564 | ||
5565 | int | |
5566 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
5567 | struct ofputil_table_stats *stats, | |
5568 | struct ofputil_table_features *features) | |
5569 | { | |
5570 | const struct ofp_header *oh; | |
5571 | ||
5572 | if (!msg->frame) { | |
5573 | ofpraw_pull_assert(msg); | |
5574 | } | |
5575 | oh = msg->frame; | |
5576 | ||
5577 | if (!ofpbuf_size(msg)) { | |
5578 | return EOF; | |
5579 | } | |
5580 | ||
5581 | memset(stats, 0, sizeof *stats); | |
5582 | memset(features, 0, sizeof *features); | |
5583 | ||
5584 | switch ((enum ofp_version) oh->version) { | |
5585 | case OFP10_VERSION: | |
5586 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
5587 | ||
5588 | case OFP11_VERSION: | |
5589 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
5590 | ||
5591 | case OFP12_VERSION: | |
5592 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
5593 | ||
5594 | case OFP13_VERSION: | |
5595 | case OFP14_VERSION: | |
5596 | case OFP15_VERSION: | |
5597 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
5598 | ||
5599 | default: | |
5600 | OVS_NOT_REACHED(); | |
5601 | } | |
307975da SH |
5602 | } |
5603 | \f | |
2b07c8b1 BP |
5604 | /* ofputil_flow_monitor_request */ |
5605 | ||
5606 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
5607 | * ofputil_flow_monitor_request in 'rq'. | |
5608 | * | |
5609 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
5610 | * message. Calling this function multiple times for a single 'msg' iterates | |
5611 | * through the requests. The caller must initially leave 'msg''s layer | |
5612 | * pointers null and not modify them between calls. | |
5613 | * | |
5614 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
5615 | * otherwise an OFPERR_* value. */ | |
5616 | int | |
5617 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
5618 | struct ofpbuf *msg) | |
5619 | { | |
5620 | struct nx_flow_monitor_request *nfmr; | |
5621 | uint16_t flags; | |
5622 | ||
cf3b7538 | 5623 | if (!msg->frame) { |
982697a4 | 5624 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5625 | } |
5626 | ||
1f317cb5 | 5627 | if (!ofpbuf_size(msg)) { |
2b07c8b1 BP |
5628 | return EOF; |
5629 | } | |
5630 | ||
5631 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
5632 | if (!nfmr) { | |
437d0d22 | 5633 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
1f317cb5 | 5634 | "leftover bytes at end", ofpbuf_size(msg)); |
2b07c8b1 BP |
5635 | return OFPERR_OFPBRC_BAD_LEN; |
5636 | } | |
5637 | ||
5638 | flags = ntohs(nfmr->flags); | |
5639 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
5640 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
5641 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
5642 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
5643 | flags); | |
04f9f286 | 5644 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
5645 | } |
5646 | ||
5647 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
5648 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5649 | } | |
5650 | ||
5651 | rq->id = ntohl(nfmr->id); | |
5652 | rq->flags = flags; | |
4e022ec0 | 5653 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
5654 | rq->table_id = nfmr->table_id; |
5655 | ||
81a76618 | 5656 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
5657 | } |
5658 | ||
5659 | void | |
5660 | ofputil_append_flow_monitor_request( | |
5661 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
5662 | { | |
5663 | struct nx_flow_monitor_request *nfmr; | |
5664 | size_t start_ofs; | |
5665 | int match_len; | |
5666 | ||
1f317cb5 | 5667 | if (!ofpbuf_size(msg)) { |
982697a4 | 5668 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
5669 | } |
5670 | ||
1f317cb5 | 5671 | start_ofs = ofpbuf_size(msg); |
2b07c8b1 | 5672 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 5673 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
5674 | |
5675 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
5676 | nfmr->id = htonl(rq->id); | |
5677 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 5678 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
5679 | nfmr->match_len = htons(match_len); |
5680 | nfmr->table_id = rq->table_id; | |
5681 | } | |
5682 | ||
5683 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
5684 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 5685 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
5686 | * |
5687 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
5688 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
5689 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
5690 | * will point into the 'ofpacts' buffer. | |
5691 | * | |
5692 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
5693 | * this function multiple times for a single 'msg' iterates through the | |
5694 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
5695 | * not modify them between calls. | |
5696 | * | |
5697 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
5698 | * otherwise an OFPERR_* value. */ | |
5699 | int | |
5700 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
5701 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
5702 | { | |
5703 | struct nx_flow_update_header *nfuh; | |
5704 | unsigned int length; | |
e3f8f887 | 5705 | struct ofp_header *oh; |
2b07c8b1 | 5706 | |
cf3b7538 | 5707 | if (!msg->frame) { |
982697a4 | 5708 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5709 | } |
5710 | ||
1f317cb5 | 5711 | if (!ofpbuf_size(msg)) { |
2b07c8b1 BP |
5712 | return EOF; |
5713 | } | |
5714 | ||
1f317cb5 | 5715 | if (ofpbuf_size(msg) < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
5716 | goto bad_len; |
5717 | } | |
5718 | ||
cf3b7538 | 5719 | oh = msg->frame; |
e3f8f887 | 5720 | |
1f317cb5 | 5721 | nfuh = ofpbuf_data(msg); |
2b07c8b1 BP |
5722 | update->event = ntohs(nfuh->event); |
5723 | length = ntohs(nfuh->length); | |
1f317cb5 | 5724 | if (length > ofpbuf_size(msg) || length % 8) { |
2b07c8b1 BP |
5725 | goto bad_len; |
5726 | } | |
5727 | ||
5728 | if (update->event == NXFME_ABBREV) { | |
5729 | struct nx_flow_update_abbrev *nfua; | |
5730 | ||
5731 | if (length != sizeof *nfua) { | |
5732 | goto bad_len; | |
5733 | } | |
5734 | ||
5735 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
5736 | update->xid = nfua->xid; | |
5737 | return 0; | |
5738 | } else if (update->event == NXFME_ADDED | |
5739 | || update->event == NXFME_DELETED | |
5740 | || update->event == NXFME_MODIFIED) { | |
5741 | struct nx_flow_update_full *nfuf; | |
5742 | unsigned int actions_len; | |
5743 | unsigned int match_len; | |
5744 | enum ofperr error; | |
5745 | ||
5746 | if (length < sizeof *nfuf) { | |
5747 | goto bad_len; | |
5748 | } | |
5749 | ||
5750 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
5751 | match_len = ntohs(nfuf->match_len); | |
5752 | if (sizeof *nfuf + match_len > length) { | |
5753 | goto bad_len; | |
5754 | } | |
5755 | ||
5756 | update->reason = ntohs(nfuf->reason); | |
5757 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
5758 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
5759 | update->table_id = nfuf->table_id; | |
5760 | update->cookie = nfuf->cookie; | |
81a76618 | 5761 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 5762 | |
81a76618 | 5763 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
5764 | if (error) { |
5765 | return error; | |
5766 | } | |
5767 | ||
5768 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
5769 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5770 | ofpacts); | |
2b07c8b1 BP |
5771 | if (error) { |
5772 | return error; | |
5773 | } | |
5774 | ||
1f317cb5 PS |
5775 | update->ofpacts = ofpbuf_data(ofpacts); |
5776 | update->ofpacts_len = ofpbuf_size(ofpacts); | |
2b07c8b1 BP |
5777 | return 0; |
5778 | } else { | |
5779 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
5780 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
5781 | ntohs(nfuh->event)); | |
15549878 | 5782 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
5783 | } |
5784 | ||
5785 | bad_len: | |
437d0d22 | 5786 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
1f317cb5 | 5787 | "leftover bytes at end", ofpbuf_size(msg)); |
2b07c8b1 BP |
5788 | return OFPERR_OFPBRC_BAD_LEN; |
5789 | } | |
5790 | ||
5791 | uint32_t | |
5792 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
5793 | { | |
982697a4 BP |
5794 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
5795 | ||
5796 | return ntohl(cancel->id); | |
2b07c8b1 | 5797 | } |
9e1fd49b | 5798 | |
2b07c8b1 BP |
5799 | struct ofpbuf * |
5800 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
5801 | { | |
5802 | struct nx_flow_monitor_cancel *nfmc; | |
5803 | struct ofpbuf *msg; | |
5804 | ||
982697a4 BP |
5805 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
5806 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
5807 | nfmc->id = htonl(id); |
5808 | return msg; | |
5809 | } | |
5810 | ||
5811 | void | |
5812 | ofputil_start_flow_update(struct list *replies) | |
5813 | { | |
5814 | struct ofpbuf *msg; | |
5815 | ||
982697a4 BP |
5816 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
5817 | htonl(0), 1024); | |
2b07c8b1 BP |
5818 | |
5819 | list_init(replies); | |
5820 | list_push_back(replies, &msg->list_node); | |
5821 | } | |
5822 | ||
5823 | void | |
5824 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
5825 | struct list *replies) | |
5826 | { | |
e28ac5cf | 5827 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
5828 | struct nx_flow_update_header *nfuh; |
5829 | struct ofpbuf *msg; | |
5830 | size_t start_ofs; | |
5831 | ||
5832 | msg = ofpbuf_from_list(list_back(replies)); | |
1f317cb5 | 5833 | start_ofs = ofpbuf_size(msg); |
2b07c8b1 BP |
5834 | |
5835 | if (update->event == NXFME_ABBREV) { | |
5836 | struct nx_flow_update_abbrev *nfua; | |
5837 | ||
5838 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
5839 | nfua->xid = update->xid; | |
5840 | } else { | |
5841 | struct nx_flow_update_full *nfuf; | |
5842 | int match_len; | |
5843 | ||
5844 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 5845 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
5846 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
5847 | version); | |
2b07c8b1 BP |
5848 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
5849 | nfuf->reason = htons(update->reason); | |
81a76618 | 5850 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
5851 | nfuf->idle_timeout = htons(update->idle_timeout); |
5852 | nfuf->hard_timeout = htons(update->hard_timeout); | |
5853 | nfuf->match_len = htons(match_len); | |
5854 | nfuf->table_id = update->table_id; | |
5855 | nfuf->cookie = update->cookie; | |
5856 | } | |
5857 | ||
5858 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
1f317cb5 | 5859 | nfuh->length = htons(ofpbuf_size(msg) - start_ofs); |
2b07c8b1 BP |
5860 | nfuh->event = htons(update->event); |
5861 | ||
982697a4 | 5862 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
5863 | } |
5864 | \f | |
c6a93eb7 | 5865 | struct ofpbuf * |
de0f3156 SH |
5866 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
5867 | enum ofputil_protocol protocol) | |
c6a93eb7 | 5868 | { |
de0f3156 | 5869 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
5870 | struct ofpbuf *msg; |
5871 | size_t size; | |
5872 | ||
982697a4 | 5873 | size = po->ofpacts_len; |
c6a93eb7 BP |
5874 | if (po->buffer_id == UINT32_MAX) { |
5875 | size += po->packet_len; | |
5876 | } | |
5877 | ||
de0f3156 SH |
5878 | switch (ofp_version) { |
5879 | case OFP10_VERSION: { | |
31a9e63f | 5880 | struct ofp10_packet_out *opo; |
de0f3156 SH |
5881 | size_t actions_ofs; |
5882 | ||
5883 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
5884 | ofpbuf_put_zeros(msg, sizeof *opo); | |
1f317cb5 | 5885 | actions_ofs = ofpbuf_size(msg); |
e3f8f887 JR |
5886 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5887 | ofp_version); | |
de0f3156 | 5888 | |
6b8c377a | 5889 | opo = ofpbuf_l3(msg); |
de0f3156 | 5890 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 5891 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
1f317cb5 | 5892 | opo->actions_len = htons(ofpbuf_size(msg) - actions_ofs); |
de0f3156 SH |
5893 | break; |
5894 | } | |
f25d0cf3 | 5895 | |
de0f3156 | 5896 | case OFP11_VERSION: |
2e1ae200 | 5897 | case OFP12_VERSION: |
c37c0382 | 5898 | case OFP13_VERSION: |
42dccab5 BP |
5899 | case OFP14_VERSION: |
5900 | case OFP15_VERSION: { | |
7c1b1a0d SH |
5901 | struct ofp11_packet_out *opo; |
5902 | size_t len; | |
5903 | ||
5904 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
5905 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
5906 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5907 | ofp_version); | |
6b8c377a | 5908 | opo = ofpbuf_l3(msg); |
7c1b1a0d SH |
5909 | opo->buffer_id = htonl(po->buffer_id); |
5910 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
5911 | opo->actions_len = htons(len); | |
5912 | break; | |
5913 | } | |
5914 | ||
de0f3156 | 5915 | default: |
428b2edd | 5916 | OVS_NOT_REACHED(); |
de0f3156 | 5917 | } |
f25d0cf3 | 5918 | |
c6a93eb7 BP |
5919 | if (po->buffer_id == UINT32_MAX) { |
5920 | ofpbuf_put(msg, po->packet, po->packet_len); | |
5921 | } | |
f25d0cf3 | 5922 | |
982697a4 | 5923 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
5924 | |
5925 | return msg; | |
5926 | } | |
d1e2cf21 | 5927 | \f |
fa37b408 BP |
5928 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
5929 | struct ofpbuf * | |
1a126c0c | 5930 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 5931 | { |
1a126c0c | 5932 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 5933 | htonl(0), 0); |
fa37b408 BP |
5934 | } |
5935 | ||
5936 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
5937 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
5938 | struct ofpbuf * | |
5939 | make_echo_reply(const struct ofp_header *rq) | |
5940 | { | |
982697a4 BP |
5941 | struct ofpbuf rq_buf; |
5942 | struct ofpbuf *reply; | |
5943 | ||
5944 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
5945 | ofpraw_pull_assert(&rq_buf); | |
5946 | ||
1f317cb5 PS |
5947 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, ofpbuf_size(&rq_buf)); |
5948 | ofpbuf_put(reply, ofpbuf_data(&rq_buf), ofpbuf_size(&rq_buf)); | |
982697a4 | 5949 | return reply; |
fa37b408 BP |
5950 | } |
5951 | ||
efb80167 | 5952 | struct ofpbuf * |
a0ae0b6e | 5953 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 5954 | { |
a0ae0b6e SH |
5955 | enum ofpraw type; |
5956 | ||
5957 | switch (ofp_version) { | |
42dccab5 | 5958 | case OFP15_VERSION: |
c37c0382 | 5959 | case OFP14_VERSION: |
2e1ae200 | 5960 | case OFP13_VERSION: |
a0ae0b6e SH |
5961 | case OFP12_VERSION: |
5962 | case OFP11_VERSION: | |
5963 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
5964 | break; | |
5965 | ||
5966 | case OFP10_VERSION: | |
5967 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
5968 | break; | |
5969 | ||
5970 | default: | |
428b2edd | 5971 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
5972 | } |
5973 | ||
5974 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
5975 | } |
5976 | ||
7257b535 BP |
5977 | const char * |
5978 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
5979 | { | |
5980 | switch (flags & OFPC_FRAG_MASK) { | |
5981 | case OFPC_FRAG_NORMAL: return "normal"; | |
5982 | case OFPC_FRAG_DROP: return "drop"; | |
5983 | case OFPC_FRAG_REASM: return "reassemble"; | |
5984 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
5985 | } | |
5986 | ||
428b2edd | 5987 | OVS_NOT_REACHED(); |
7257b535 BP |
5988 | } |
5989 | ||
5990 | bool | |
5991 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
5992 | { | |
5993 | if (!strcasecmp(s, "normal")) { | |
5994 | *flags = OFPC_FRAG_NORMAL; | |
5995 | } else if (!strcasecmp(s, "drop")) { | |
5996 | *flags = OFPC_FRAG_DROP; | |
5997 | } else if (!strcasecmp(s, "reassemble")) { | |
5998 | *flags = OFPC_FRAG_REASM; | |
5999 | } else if (!strcasecmp(s, "nx-match")) { | |
6000 | *flags = OFPC_FRAG_NX_MATCH; | |
6001 | } else { | |
6002 | return false; | |
6003 | } | |
6004 | return true; | |
6005 | } | |
6006 | ||
7b7503ea BP |
6007 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6008 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6009 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6010 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6011 | * |
6012 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6013 | enum ofperr | |
4e022ec0 | 6014 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6015 | { |
6016 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6017 | ||
4e022ec0 AW |
6018 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6019 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6020 | return 0; |
4e022ec0 AW |
6021 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6022 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6023 | return 0; |
6024 | } else { | |
bc146369 | 6025 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6026 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6027 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6028 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6029 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6030 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6031 | } | |
6032 | } | |
6033 | ||
6034 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6035 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6036 | * | |
6037 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6038 | ovs_be32 | |
4e022ec0 | 6039 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6040 | { |
4e022ec0 AW |
6041 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6042 | ? ofp_to_u16(ofp10_port) | |
6043 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6044 | } |
6045 | ||
39dc9082 BP |
6046 | #define OFPUTIL_NAMED_PORTS \ |
6047 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6048 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6049 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6050 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6051 | OFPUTIL_NAMED_PORT(ALL) \ | |
6052 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6053 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6054 | OFPUTIL_NAMED_PORT(ANY) \ |
6055 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6056 | |
6057 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6058 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6059 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6060 | OFPUTIL_NAMED_PORT(NONE) |
6061 | ||
8010100b BP |
6062 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6063 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6064 | * (e.g. "LOCAL"). | |
c6100d92 | 6065 | * |
8010100b BP |
6066 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6067 | * or name. The caller should issue an error message in this case, because | |
6068 | * this function usually does not. (This gives the caller an opportunity to | |
6069 | * look up the port name another way, e.g. by contacting the switch and listing | |
6070 | * the names of all its ports). | |
c6100d92 BP |
6071 | * |
6072 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6073 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6074 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6075 | bool |
4e022ec0 | 6076 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6077 | { |
5b23ff7e | 6078 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6079 | |
5b23ff7e JR |
6080 | if (*s == '-') { |
6081 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6082 | return false; | |
6083 | } | |
8010100b | 6084 | *portp = 0; |
c6100d92 | 6085 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6086 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6087 | /* Pass. */ | |
6088 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6089 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6090 | "be translated to %u when talking to an OF1.1 or " | |
6091 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6092 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6093 | char name[OFP_MAX_PORT_NAME_LEN]; |
6094 | ||
6095 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6096 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6097 | "for compatibility with OpenFlow 1.1 and later", | |
6098 | name, port32); | |
4e022ec0 | 6099 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6100 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6101 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6102 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6103 | return false; |
c6100d92 | 6104 | } else { |
4e022ec0 | 6105 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6106 | } |
4e022ec0 AW |
6107 | |
6108 | *portp = u16_to_ofp(port32); | |
6109 | return true; | |
c6100d92 BP |
6110 | } else { |
6111 | struct pair { | |
6112 | const char *name; | |
4e022ec0 | 6113 | ofp_port_t value; |
c6100d92 BP |
6114 | }; |
6115 | static const struct pair pairs[] = { | |
39dc9082 | 6116 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6117 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6118 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6119 | }; |
6120 | const struct pair *p; | |
39dc9082 | 6121 | |
c6100d92 BP |
6122 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6123 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6124 | *portp = p->value; |
6125 | return true; | |
c6100d92 | 6126 | } |
39dc9082 | 6127 | } |
8010100b | 6128 | return false; |
39dc9082 | 6129 | } |
39dc9082 BP |
6130 | } |
6131 | ||
6132 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6133 | * Most ports' string representation is just the port number, but for special | |
6134 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6135 | void | |
4e022ec0 | 6136 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6137 | { |
28b11432 BP |
6138 | char name[OFP_MAX_PORT_NAME_LEN]; |
6139 | ||
6140 | ofputil_port_to_string(port, name, sizeof name); | |
6141 | ds_put_cstr(s, name); | |
6142 | } | |
39dc9082 | 6143 | |
28b11432 BP |
6144 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6145 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6146 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6147 | * by name, e.g. "LOCAL". */ | |
6148 | void | |
6149 | ofputil_port_to_string(ofp_port_t port, | |
6150 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6151 | { | |
39dc9082 | 6152 | switch (port) { |
28b11432 BP |
6153 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6154 | case OFPP_##NAME: \ | |
6155 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6156 | break; | |
39dc9082 BP |
6157 | OFPUTIL_NAMED_PORTS |
6158 | #undef OFPUTIL_NAMED_PORT | |
6159 | ||
6160 | default: | |
28b11432 BP |
6161 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6162 | break; | |
39dc9082 | 6163 | } |
39dc9082 BP |
6164 | } |
6165 | ||
7395c052 NZ |
6166 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6167 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6168 | * (either "ANY" or "ALL"). | |
6169 | * | |
6170 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6171 | * name. */ | |
6172 | bool | |
6173 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6174 | { | |
6175 | if (!strcasecmp(s, "any")) { | |
6176 | *group_idp = OFPG11_ANY; | |
6177 | } else if (!strcasecmp(s, "all")) { | |
6178 | *group_idp = OFPG11_ALL; | |
6179 | } else if (!str_to_uint(s, 10, group_idp)) { | |
6180 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6181 | "32-bit nonnegative integers or the keywords ANY or " | |
6182 | "ALL.)", s); | |
6183 | return false; | |
6184 | } | |
6185 | ||
6186 | return true; | |
6187 | } | |
6188 | ||
6189 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6190 | * Most groups' string representation is just the number, but for special | |
6191 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
6192 | void | |
6193 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6194 | { | |
6195 | char name[MAX_GROUP_NAME_LEN]; | |
6196 | ||
6197 | ofputil_group_to_string(group_id, name, sizeof name); | |
6198 | ds_put_cstr(s, name); | |
6199 | } | |
6200 | ||
6201 | ||
6202 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6203 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
6204 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
6205 | * by name, e.g. "ALL". */ | |
6206 | void | |
6207 | ofputil_group_to_string(uint32_t group_id, | |
6208 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6209 | { | |
6210 | switch (group_id) { | |
6211 | case OFPG11_ALL: | |
6212 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
6213 | break; | |
6214 | ||
6215 | case OFPG11_ANY: | |
6216 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
6217 | break; | |
6218 | ||
6219 | default: | |
6220 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6221 | break; | |
6222 | } | |
6223 | } | |
6224 | ||
2be393ed JP |
6225 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6226 | * 'ofp_version', tries to pull the first element from the array. If | |
6227 | * successful, initializes '*pp' with an abstract representation of the | |
6228 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6229 | * On an error, returns a positive OFPERR_* value. */ | |
6230 | int | |
2e3fa633 | 6231 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6232 | struct ofputil_phy_port *pp) |
6233 | { | |
8c3cc785 BP |
6234 | memset(pp, 0, sizeof *pp); |
6235 | ||
2e3fa633 SH |
6236 | switch (ofp_version) { |
6237 | case OFP10_VERSION: { | |
2be393ed JP |
6238 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6239 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6240 | } |
6241 | case OFP11_VERSION: | |
2e1ae200 JR |
6242 | case OFP12_VERSION: |
6243 | case OFP13_VERSION: { | |
2be393ed JP |
6244 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6245 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6246 | } | |
c37c0382 | 6247 | case OFP14_VERSION: |
42dccab5 | 6248 | case OFP15_VERSION: |
8c3cc785 | 6249 | return ofpbuf_size(b) ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6250 | default: |
428b2edd | 6251 | OVS_NOT_REACHED(); |
2e3fa633 | 6252 | } |
2be393ed JP |
6253 | } |
6254 | ||
3cbd9931 | 6255 | static void |
81a76618 | 6256 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6257 | { |
6258 | enum { | |
6259 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6260 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6261 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6262 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6263 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6264 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6265 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6266 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6267 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6268 | } may_match; |
6269 | ||
6270 | struct flow_wildcards wc; | |
6271 | ||
6272 | /* Figure out what fields may be matched. */ | |
81a76618 | 6273 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6274 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6275 | if (match->flow.nw_proto == IPPROTO_TCP || |
6276 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6277 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6278 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6279 | may_match |= MAY_TP_ADDR; |
6280 | } | |
81a76618 | 6281 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6282 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6283 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6284 | match->flow.nw_proto == IPPROTO_UDP || |
6285 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6286 | may_match |= MAY_TP_ADDR; |
81a76618 | 6287 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6288 | may_match |= MAY_TP_ADDR; |
81a76618 | 6289 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6290 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6291 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6292 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6293 | } | |
6294 | } | |
8087f5ff MM |
6295 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6296 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6297 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6298 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6299 | may_match = MAY_MPLS; | |
1c0b7503 | 6300 | } else { |
b459a924 BP |
6301 | may_match = 0; |
6302 | } | |
6303 | ||
6304 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6305 | wc = match->wc; |
b459a924 | 6306 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6307 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6308 | } |
6309 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6310 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6311 | } |
6312 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6313 | wc.masks.nw_proto = 0; |
b459a924 | 6314 | } |
9e44d715 | 6315 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6316 | wc.masks.nw_tos = 0; |
6317 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6318 | } |
6319 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 6320 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
6321 | } |
6322 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 6323 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 6324 | } |
d78477ec | 6325 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6326 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6327 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6328 | } |
6329 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6330 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6331 | } |
b02475c5 | 6332 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6333 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6334 | } |
b459a924 BP |
6335 | |
6336 | /* Log any changes. */ | |
81a76618 | 6337 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6338 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6339 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6340 | |
81a76618 BP |
6341 | match->wc = wc; |
6342 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6343 | |
6344 | if (log) { | |
81a76618 | 6345 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6346 | VLOG_INFO("normalization changed ofp_match, details:"); |
6347 | VLOG_INFO(" pre: %s", pre); | |
6348 | VLOG_INFO("post: %s", post); | |
6349 | free(pre); | |
6350 | free(post); | |
6351 | } | |
fa37b408 | 6352 | } |
3f09c339 | 6353 | } |
26c112c2 | 6354 | |
81a76618 | 6355 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6356 | * |
6357 | * 1. If the type of level N is known, then only the valid fields for that | |
6358 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6359 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6360 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6361 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6362 | * IPv4 flow. |
6363 | * | |
6364 | * 2. If the type of level N is not known (or not understood by Open | |
6365 | * vSwitch), then no fields at all for that level may be specified. For | |
6366 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6367 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6368 | * SCTP flow. |
6369 | * | |
81a76618 | 6370 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6371 | * message. */ |
6372 | void | |
81a76618 | 6373 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6374 | { |
81a76618 | 6375 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6376 | } |
6377 | ||
81a76618 BP |
6378 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6379 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6380 | * sense for use on flows received from elsewhere (so that a bug in the program |
6381 | * that sent them can be reported and corrected). */ | |
6382 | void | |
81a76618 | 6383 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6384 | { |
81a76618 | 6385 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6386 | } |
6387 | ||
0ff22822 BP |
6388 | /* Parses a key or a key-value pair from '*stringp'. |
6389 | * | |
6390 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6391 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6392 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6393 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6394 | * terminators. Returns true. | |
6395 | * | |
6396 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6397 | * NULL and returns false. */ | |
6398 | bool | |
6399 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6400 | { | |
6401 | char *pos, *key, *value; | |
6402 | size_t key_len; | |
6403 | ||
6404 | pos = *stringp; | |
6405 | pos += strspn(pos, ", \t\r\n"); | |
6406 | if (*pos == '\0') { | |
6407 | *keyp = *valuep = NULL; | |
6408 | return false; | |
6409 | } | |
6410 | ||
6411 | key = pos; | |
6412 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6413 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6414 | /* The value can be separated by a colon. */ | |
6415 | size_t value_len; | |
6416 | ||
6417 | value = key + key_len + 1; | |
6418 | value_len = strcspn(value, ", \t\r\n"); | |
6419 | pos = value + value_len + (value[value_len] != '\0'); | |
6420 | value[value_len] = '\0'; | |
6421 | } else if (key[key_len] == '(') { | |
6422 | /* The value can be surrounded by balanced parentheses. The outermost | |
6423 | * set of parentheses is removed. */ | |
6424 | int level = 1; | |
6425 | size_t value_len; | |
6426 | ||
6427 | value = key + key_len + 1; | |
6428 | for (value_len = 0; level > 0; value_len++) { | |
6429 | switch (value[value_len]) { | |
6430 | case '\0': | |
33cadc50 BP |
6431 | level = 0; |
6432 | break; | |
0ff22822 BP |
6433 | |
6434 | case '(': | |
6435 | level++; | |
6436 | break; | |
6437 | ||
6438 | case ')': | |
6439 | level--; | |
6440 | break; | |
6441 | } | |
6442 | } | |
6443 | value[value_len - 1] = '\0'; | |
6444 | pos = value + value_len; | |
6445 | } else { | |
6446 | /* There might be no value at all. */ | |
6447 | value = key + key_len; /* Will become the empty string below. */ | |
6448 | pos = key + key_len + (key[key_len] != '\0'); | |
6449 | } | |
6450 | key[key_len] = '\0'; | |
6451 | ||
6452 | *stringp = pos; | |
6453 | *keyp = key; | |
6454 | *valuep = value; | |
6455 | return true; | |
6456 | } | |
f8e4867e SH |
6457 | |
6458 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 6459 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
6460 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
6461 | struct ofpbuf * | |
4e022ec0 | 6462 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
6463 | { |
6464 | struct ofpbuf *request; | |
6465 | ||
6466 | switch (ofp_version) { | |
6467 | case OFP10_VERSION: { | |
6468 | struct ofp10_port_stats_request *req; | |
6469 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
6470 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 6471 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
6472 | break; |
6473 | } | |
6474 | case OFP11_VERSION: | |
2e1ae200 | 6475 | case OFP12_VERSION: |
c37c0382 | 6476 | case OFP13_VERSION: |
42dccab5 BP |
6477 | case OFP14_VERSION: |
6478 | case OFP15_VERSION: { | |
f8e4867e SH |
6479 | struct ofp11_port_stats_request *req; |
6480 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
6481 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6482 | req->port_no = ofputil_port_to_ofp11(port); | |
6483 | break; | |
6484 | } | |
6485 | default: | |
428b2edd | 6486 | OVS_NOT_REACHED(); |
f8e4867e SH |
6487 | } |
6488 | ||
6489 | return request; | |
6490 | } | |
6491 | ||
6492 | static void | |
6493 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
6494 | struct ofp10_port_stats *ps10) | |
6495 | { | |
4e022ec0 | 6496 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
6497 | memset(ps10->pad, 0, sizeof ps10->pad); |
6498 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
6499 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
6500 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
6501 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
6502 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
6503 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
6504 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
6505 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
6506 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
6507 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
6508 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
6509 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
6510 | } | |
6511 | ||
6512 | static void | |
6513 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
6514 | struct ofp11_port_stats *ps11) | |
6515 | { | |
6516 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6517 | memset(ps11->pad, 0, sizeof ps11->pad); | |
6518 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
6519 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
6520 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
6521 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
6522 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
6523 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
6524 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
6525 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
6526 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6527 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6528 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6529 | ps11->collisions = htonll(ops->stats.collisions); | |
6530 | } | |
6531 | ||
2e1ae200 JR |
6532 | static void |
6533 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
6534 | struct ofp13_port_stats *ps13) | |
6535 | { | |
6536 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
6537 | ps13->duration_sec = htonl(ops->duration_sec); |
6538 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
6539 | } |
6540 | ||
5469537b BP |
6541 | static void |
6542 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
6543 | struct list *replies) | |
6544 | { | |
6545 | struct ofp14_port_stats_prop_ethernet *eth; | |
6546 | struct ofp14_port_stats *ps14; | |
6547 | struct ofpbuf *reply; | |
6548 | ||
6549 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
6550 | ||
6551 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
6552 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
6553 | memset(ps14->pad, 0, sizeof ps14->pad); | |
6554 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6555 | ps14->duration_sec = htonl(ops->duration_sec); | |
6556 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
6557 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
6558 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
6559 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
6560 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
6561 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
6562 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
6563 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
6564 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
6565 | ||
6566 | eth = ofpbuf_put_uninit(reply, sizeof *eth); | |
6567 | eth->type = htons(OFPPSPT14_ETHERNET); | |
6568 | eth->length = htons(sizeof *eth); | |
6569 | memset(eth->pad, 0, sizeof eth->pad); | |
6570 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6571 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6572 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6573 | eth->collisions = htonll(ops->stats.collisions); | |
6574 | } | |
2e1ae200 | 6575 | |
ad4c35fe | 6576 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e SH |
6577 | void |
6578 | ofputil_append_port_stat(struct list *replies, | |
6579 | const struct ofputil_port_stats *ops) | |
6580 | { | |
e28ac5cf | 6581 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
6582 | case OFP13_VERSION: { |
6583 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6584 | ofputil_port_stats_to_ofp13(ops, reply); | |
6585 | break; | |
6586 | } | |
f8e4867e SH |
6587 | case OFP12_VERSION: |
6588 | case OFP11_VERSION: { | |
6589 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6590 | ofputil_port_stats_to_ofp11(ops, reply); | |
6591 | break; | |
6592 | } | |
6593 | ||
6594 | case OFP10_VERSION: { | |
6595 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6596 | ofputil_port_stats_to_ofp10(ops, reply); | |
6597 | break; | |
6598 | } | |
6599 | ||
c37c0382 | 6600 | case OFP14_VERSION: |
42dccab5 | 6601 | case OFP15_VERSION: |
5469537b | 6602 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
6603 | break; |
6604 | ||
f8e4867e | 6605 | default: |
428b2edd | 6606 | OVS_NOT_REACHED(); |
f8e4867e SH |
6607 | } |
6608 | } | |
6609 | ||
6610 | static enum ofperr | |
6611 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
6612 | const struct ofp10_port_stats *ps10) | |
6613 | { | |
6614 | memset(ops, 0, sizeof *ops); | |
6615 | ||
4e022ec0 | 6616 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
6617 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
6618 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
6619 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
6620 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
6621 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
6622 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
6623 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
6624 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
6625 | ops->stats.rx_frame_errors = | |
6626 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
6627 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
6628 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
6629 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 6630 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6631 | |
6632 | return 0; | |
6633 | } | |
6634 | ||
6635 | static enum ofperr | |
6636 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
6637 | const struct ofp11_port_stats *ps11) | |
6638 | { | |
6639 | enum ofperr error; | |
6640 | ||
6641 | memset(ops, 0, sizeof *ops); | |
6642 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
6643 | if (error) { | |
6644 | return error; | |
6645 | } | |
6646 | ||
6647 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
6648 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
6649 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
6650 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
6651 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
6652 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
6653 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
6654 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
6655 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
6656 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
6657 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
6658 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 6659 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6660 | |
6661 | return 0; | |
6662 | } | |
6663 | ||
2e1ae200 JR |
6664 | static enum ofperr |
6665 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
6666 | const struct ofp13_port_stats *ps13) | |
6667 | { | |
65e0be10 | 6668 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 6669 | if (!error) { |
65e0be10 BP |
6670 | ops->duration_sec = ntohl(ps13->duration_sec); |
6671 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 6672 | } |
2e1ae200 JR |
6673 | return error; |
6674 | } | |
6675 | ||
5469537b BP |
6676 | static enum ofperr |
6677 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
6678 | struct ofputil_port_stats *ops) | |
be0c30df | 6679 | { |
5469537b BP |
6680 | const struct ofp14_port_stats_prop_ethernet *eth = ofpbuf_data(payload); |
6681 | ||
6682 | if (ofpbuf_size(payload) != sizeof *eth) { | |
6683 | return OFPERR_OFPBPC_BAD_LEN; | |
6684 | } | |
6685 | ||
6686 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
6687 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
6688 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
6689 | ops->stats.collisions = ntohll(eth->collisions); | |
6690 | ||
6691 | return 0; | |
6692 | } | |
6693 | ||
6694 | static enum ofperr | |
6695 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
6696 | struct ofpbuf *msg) | |
6697 | { | |
6698 | const struct ofp14_port_stats *ps14; | |
6699 | struct ofpbuf properties; | |
6700 | enum ofperr error; | |
6701 | size_t len; | |
6702 | ||
6703 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
6704 | if (!ps14) { | |
6705 | return OFPERR_OFPBRC_BAD_LEN; | |
6706 | } | |
6707 | ||
6708 | len = ntohs(ps14->length); | |
6709 | if (len < sizeof *ps14 || len - sizeof *ps14 > ofpbuf_size(msg)) { | |
6710 | return OFPERR_OFPBRC_BAD_LEN; | |
be0c30df | 6711 | } |
5469537b BP |
6712 | len -= sizeof *ps14; |
6713 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
6714 | ||
6715 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
6716 | if (error) { | |
6717 | return error; | |
6718 | } | |
6719 | ||
6720 | ops->duration_sec = ntohl(ps14->duration_sec); | |
6721 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
6722 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
6723 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
6724 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
6725 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
6726 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
6727 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
6728 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
6729 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
6730 | ops->stats.rx_frame_errors = UINT64_MAX; | |
6731 | ops->stats.rx_over_errors = UINT64_MAX; | |
6732 | ops->stats.rx_crc_errors = UINT64_MAX; | |
6733 | ops->stats.collisions = UINT64_MAX; | |
6734 | ||
6735 | while (ofpbuf_size(&properties) > 0) { | |
6736 | struct ofpbuf payload; | |
6737 | enum ofperr error; | |
6738 | uint16_t type; | |
6739 | ||
6740 | error = ofputil_pull_property(&properties, &payload, &type); | |
6741 | if (error) { | |
6742 | return error; | |
6743 | } | |
6744 | ||
6745 | switch (type) { | |
6746 | case OFPPSPT14_ETHERNET: | |
6747 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
6748 | break; | |
6749 | ||
6750 | default: | |
6751 | log_property(true, "unknown port stats property %"PRIu16, type); | |
6752 | error = 0; | |
6753 | break; | |
6754 | } | |
6755 | ||
6756 | if (error) { | |
6757 | return error; | |
6758 | } | |
6759 | } | |
6760 | ||
6761 | return 0; | |
be0c30df | 6762 | } |
2e1ae200 | 6763 | |
f8e4867e SH |
6764 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
6765 | * message 'oh'. */ | |
6766 | size_t | |
6767 | ofputil_count_port_stats(const struct ofp_header *oh) | |
6768 | { | |
5469537b | 6769 | struct ofputil_port_stats ps; |
f8e4867e | 6770 | struct ofpbuf b; |
5469537b | 6771 | size_t n = 0; |
f8e4867e SH |
6772 | |
6773 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6774 | ofpraw_pull_assert(&b); | |
5469537b BP |
6775 | while (!ofputil_decode_port_stats(&ps, &b)) { |
6776 | n++; | |
6777 | } | |
6778 | return n; | |
f8e4867e SH |
6779 | } |
6780 | ||
6781 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
6782 | * ofputil_port_stats in 'ps'. | |
6783 | * | |
6784 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
6785 | * message. Calling this function multiple times for a single 'msg' iterates | |
6786 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6787 | * null and not modify them between calls. | |
6788 | * | |
6789 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6790 | * otherwise a positive errno value. */ | |
6791 | int | |
6792 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
6793 | { | |
6794 | enum ofperr error; | |
6795 | enum ofpraw raw; | |
6796 | ||
cf3b7538 JR |
6797 | error = (msg->frame |
6798 | ? ofpraw_decode(&raw, msg->frame) | |
f8e4867e SH |
6799 | : ofpraw_pull(&raw, msg)); |
6800 | if (error) { | |
6801 | return error; | |
6802 | } | |
6803 | ||
1f317cb5 | 6804 | if (!ofpbuf_size(msg)) { |
f8e4867e | 6805 | return EOF; |
5469537b BP |
6806 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
6807 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
6808 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
6809 | const struct ofp13_port_stats *ps13; | |
6810 | ||
6811 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
6812 | if (!ps13) { | |
6813 | goto bad_len; | |
6814 | } | |
6815 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
6816 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
6817 | const struct ofp11_port_stats *ps11; | |
6818 | ||
6819 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
6820 | if (!ps11) { | |
2e1ae200 | 6821 | goto bad_len; |
f8e4867e SH |
6822 | } |
6823 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
6824 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
6825 | const struct ofp10_port_stats *ps10; | |
6826 | ||
6827 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
6828 | if (!ps10) { | |
2e1ae200 | 6829 | goto bad_len; |
f8e4867e SH |
6830 | } |
6831 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
6832 | } else { | |
428b2edd | 6833 | OVS_NOT_REACHED(); |
f8e4867e SH |
6834 | } |
6835 | ||
2e1ae200 | 6836 | bad_len: |
437d0d22 | 6837 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
1f317cb5 | 6838 | "bytes at end", ofpbuf_size(msg)); |
2e1ae200 | 6839 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
6840 | } |
6841 | ||
6842 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
6843 | * port number and stores the latter in '*ofp10_port'. | |
6844 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6845 | enum ofperr | |
6846 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 6847 | ofp_port_t *ofp10_port) |
f8e4867e SH |
6848 | { |
6849 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 6850 | case OFP15_VERSION: |
5469537b | 6851 | case OFP14_VERSION: |
2e1ae200 | 6852 | case OFP13_VERSION: |
f8e4867e SH |
6853 | case OFP12_VERSION: |
6854 | case OFP11_VERSION: { | |
6855 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
6856 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
6857 | } | |
6858 | ||
6859 | case OFP10_VERSION: { | |
6860 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 6861 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
6862 | return 0; |
6863 | } | |
6864 | ||
6865 | default: | |
428b2edd | 6866 | OVS_NOT_REACHED(); |
f8e4867e SH |
6867 | } |
6868 | } | |
64626975 | 6869 | |
7395c052 NZ |
6870 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
6871 | void | |
6872 | ofputil_bucket_list_destroy(struct list *buckets) | |
6873 | { | |
6874 | struct ofputil_bucket *bucket, *next_bucket; | |
6875 | ||
6876 | LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) { | |
6877 | list_remove(&bucket->list_node); | |
6878 | free(bucket->ofpacts); | |
6879 | free(bucket); | |
6880 | } | |
6881 | } | |
6882 | ||
103b4866 SH |
6883 | /* Clones 'bucket' and its ofpacts data */ |
6884 | static struct ofputil_bucket * | |
6885 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
6886 | { | |
6887 | struct ofputil_bucket *new; | |
6888 | ||
6889 | new = xmemdup(bucket, sizeof *bucket); | |
6890 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
6891 | ||
6892 | return new; | |
6893 | } | |
6894 | ||
6895 | /* Clones each of the buckets in the list 'src' appending them | |
6896 | * in turn to 'dest' which should be an initialised list. | |
6897 | * An exception is that if the pointer value of a bucket in 'src' | |
6898 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
6899 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
6900 | * be cloned and appended to 'dest'. */ | |
6901 | void | |
6902 | ofputil_bucket_clone_list(struct list *dest, const struct list *src, | |
6903 | const struct ofputil_bucket *skip) | |
6904 | { | |
6905 | struct ofputil_bucket *bucket; | |
6906 | ||
6907 | LIST_FOR_EACH (bucket, list_node, src) { | |
6908 | struct ofputil_bucket *new_bucket; | |
6909 | ||
6910 | if (bucket == skip) { | |
6911 | continue; | |
6912 | } | |
6913 | ||
6914 | new_bucket = ofputil_bucket_clone_data(bucket); | |
6915 | list_push_back(dest, &new_bucket->list_node); | |
6916 | } | |
6917 | } | |
6918 | ||
6919 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
6920 | * Returns the first bucket found or NULL if no buckets are found. */ | |
6921 | struct ofputil_bucket * | |
6922 | ofputil_bucket_find(const struct list *buckets, uint32_t bucket_id) | |
6923 | { | |
6924 | struct ofputil_bucket *bucket; | |
6925 | ||
6926 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
6927 | return NULL; | |
6928 | } | |
6929 | ||
6930 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
6931 | if (bucket->bucket_id == bucket_id) { | |
6932 | return bucket; | |
6933 | } | |
6934 | } | |
6935 | ||
6936 | return NULL; | |
6937 | } | |
6938 | ||
6939 | /* Returns true if more than one bucket in the list 'buckets' | |
6940 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 SH |
6941 | bool |
6942 | ofputil_bucket_check_duplicate_id(const struct list *buckets) | |
6943 | { | |
6944 | struct ofputil_bucket *i, *j; | |
6945 | ||
6946 | LIST_FOR_EACH (i, list_node, buckets) { | |
6947 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
6948 | if (i == j) { | |
6949 | break; | |
6950 | } | |
6951 | if (i->bucket_id == j->bucket_id) { | |
6952 | return true; | |
6953 | } | |
6954 | } | |
6955 | } | |
6956 | ||
6957 | return false; | |
6958 | } | |
6959 | ||
103b4866 SH |
6960 | /* Returns the bucket at the front of the list 'buckets'. |
6961 | * Undefined if 'buckets is empty. */ | |
6962 | struct ofputil_bucket * | |
6963 | ofputil_bucket_list_front(const struct list *buckets) | |
6964 | { | |
6965 | static struct ofputil_bucket *bucket; | |
6966 | ||
6967 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
6968 | ||
6969 | return bucket; | |
6970 | } | |
6971 | ||
6972 | /* Returns the bucket at the back of the list 'buckets'. | |
6973 | * Undefined if 'buckets is empty. */ | |
6974 | struct ofputil_bucket * | |
6975 | ofputil_bucket_list_back(const struct list *buckets) | |
6976 | { | |
6977 | static struct ofputil_bucket *bucket; | |
6978 | ||
6979 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
6980 | ||
6981 | return bucket; | |
6982 | } | |
6983 | ||
7395c052 NZ |
6984 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
6985 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
6986 | * for all groups.) | |
6987 | * | |
6988 | * Group statistics include packet and byte counts for each group. */ | |
6989 | struct ofpbuf * | |
6990 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
6991 | uint32_t group_id) | |
6992 | { | |
6993 | struct ofpbuf *request; | |
6994 | ||
6995 | switch (ofp_version) { | |
6996 | case OFP10_VERSION: | |
6997 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
6998 | "(\'-O OpenFlow11\')"); | |
6999 | case OFP11_VERSION: | |
7000 | case OFP12_VERSION: | |
c37c0382 | 7001 | case OFP13_VERSION: |
42dccab5 BP |
7002 | case OFP14_VERSION: |
7003 | case OFP15_VERSION: { | |
7395c052 NZ |
7004 | struct ofp11_group_stats_request *req; |
7005 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7006 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7007 | req->group_id = htonl(group_id); | |
7008 | break; | |
7009 | } | |
7010 | default: | |
428b2edd | 7011 | OVS_NOT_REACHED(); |
7395c052 NZ |
7012 | } |
7013 | ||
7014 | return request; | |
7015 | } | |
7016 | ||
19187a71 BP |
7017 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7018 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7019 | * requested. */ | |
7020 | uint32_t | |
7021 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7022 | { | |
7023 | struct ofpbuf request; | |
7024 | enum ofpraw raw; | |
7025 | ||
7026 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
7027 | raw = ofpraw_pull_assert(&request); | |
7028 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
7029 | return OFPG_ALL; | |
7030 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7031 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7032 | return ntohl(*group_id); | |
7033 | } else { | |
7034 | OVS_NOT_REACHED(); | |
7035 | } | |
7036 | } | |
7037 | ||
7395c052 | 7038 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7039 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7040 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7041 | * groups). | |
7395c052 NZ |
7042 | * |
7043 | * Group descriptions include the bucket and action configuration for each | |
7044 | * group. */ | |
7045 | struct ofpbuf * | |
19187a71 BP |
7046 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7047 | uint32_t group_id) | |
7395c052 NZ |
7048 | { |
7049 | struct ofpbuf *request; | |
19187a71 | 7050 | ovs_be32 gid; |
7395c052 NZ |
7051 | |
7052 | switch (ofp_version) { | |
7053 | case OFP10_VERSION: | |
7054 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7055 | "(\'-O OpenFlow11\')"); | |
7056 | case OFP11_VERSION: | |
7057 | case OFP12_VERSION: | |
c37c0382 AC |
7058 | case OFP13_VERSION: |
7059 | case OFP14_VERSION: | |
19187a71 BP |
7060 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7061 | ofp_version, 0); | |
7062 | break; | |
42dccab5 | 7063 | case OFP15_VERSION: |
19187a71 BP |
7064 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7065 | ofp_version, 0); | |
7066 | gid = htonl(group_id); | |
7067 | ofpbuf_put(request, &gid, sizeof gid); | |
7395c052 | 7068 | break; |
7395c052 | 7069 | default: |
428b2edd | 7070 | OVS_NOT_REACHED(); |
7395c052 NZ |
7071 | } |
7072 | ||
7073 | return request; | |
7074 | } | |
7075 | ||
dcbe78ad | 7076 | static void |
63759e71 AZ |
7077 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7078 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7079 | { |
7395c052 NZ |
7080 | int i; |
7081 | ||
dcbe78ad AZ |
7082 | for (i = 0; i < gs->n_buckets; i++) { |
7083 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7084 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7085 | } |
7395c052 NZ |
7086 | } |
7087 | ||
7088 | static void | |
dcbe78ad | 7089 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7090 | struct ofp11_group_stats *gs11, size_t length, |
7091 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7092 | { |
63759e71 AZ |
7093 | memset(gs11, 0, sizeof *gs11); |
7094 | gs11->length = htons(length); | |
7095 | gs11->group_id = htonl(gs->group_id); | |
7096 | gs11->ref_count = htonl(gs->ref_count); | |
7097 | gs11->packet_count = htonll(gs->packet_count); | |
7098 | gs11->byte_count = htonll(gs->byte_count); | |
7099 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7100 | } |
7395c052 | 7101 | |
dcbe78ad AZ |
7102 | static void |
7103 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7104 | struct ofp13_group_stats *gs13, size_t length, |
7105 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7106 | { |
63759e71 | 7107 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7108 | gs13->duration_sec = htonl(gs->duration_sec); |
7109 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7110 | |
7395c052 NZ |
7111 | } |
7112 | ||
dcbe78ad | 7113 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7114 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7115 | * must have originally been initialized with ofpmp_init(). */ | |
7116 | void | |
7117 | ofputil_append_group_stats(struct list *replies, | |
dcbe78ad | 7118 | const struct ofputil_group_stats *gs) |
7395c052 | 7119 | { |
63759e71 AZ |
7120 | size_t bucket_counter_size; |
7121 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7122 | size_t length; |
7395c052 | 7123 | |
63759e71 AZ |
7124 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7125 | ||
e28ac5cf | 7126 | switch (ofpmp_version(replies)) { |
7395c052 | 7127 | case OFP11_VERSION: |
dcbe78ad | 7128 | case OFP12_VERSION:{ |
63759e71 | 7129 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7130 | |
63759e71 AZ |
7131 | length = sizeof *gs11 + bucket_counter_size; |
7132 | gs11 = ofpmp_append(replies, length); | |
7133 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7134 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7135 | break; |
7136 | } | |
7395c052 NZ |
7137 | |
7138 | case OFP13_VERSION: | |
42dccab5 BP |
7139 | case OFP14_VERSION: |
7140 | case OFP15_VERSION: { | |
63759e71 | 7141 | struct ofp13_group_stats *gs13; |
7395c052 | 7142 | |
63759e71 AZ |
7143 | length = sizeof *gs13 + bucket_counter_size; |
7144 | gs13 = ofpmp_append(replies, length); | |
7145 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7146 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7147 | break; |
7148 | } | |
c37c0382 | 7149 | |
7395c052 NZ |
7150 | case OFP10_VERSION: |
7151 | default: | |
428b2edd | 7152 | OVS_NOT_REACHED(); |
7395c052 NZ |
7153 | } |
7154 | } | |
7395c052 NZ |
7155 | /* Returns an OpenFlow group features request for OpenFlow version |
7156 | * 'ofp_version'. */ | |
7157 | struct ofpbuf * | |
7158 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7159 | { | |
7160 | struct ofpbuf *request = NULL; | |
7161 | ||
7162 | switch (ofp_version) { | |
7163 | case OFP10_VERSION: | |
7164 | case OFP11_VERSION: | |
7165 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7166 | "(\'-O OpenFlow12\')"); | |
7167 | case OFP12_VERSION: | |
c37c0382 AC |
7168 | case OFP13_VERSION: |
7169 | case OFP14_VERSION: | |
42dccab5 | 7170 | case OFP15_VERSION: |
7395c052 | 7171 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7172 | ofp_version, 0); |
7395c052 | 7173 | break; |
7395c052 | 7174 | default: |
428b2edd | 7175 | OVS_NOT_REACHED(); |
7395c052 NZ |
7176 | } |
7177 | ||
7178 | return request; | |
7179 | } | |
7180 | ||
7181 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7182 | * group features request 'request'. */ | |
7183 | struct ofpbuf * | |
7184 | ofputil_encode_group_features_reply( | |
7185 | const struct ofputil_group_features *features, | |
7186 | const struct ofp_header *request) | |
7187 | { | |
7188 | struct ofp12_group_features_stats *ogf; | |
7189 | struct ofpbuf *reply; | |
08d1e234 | 7190 | int i; |
7395c052 NZ |
7191 | |
7192 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7193 | request->version, request->xid, 0); | |
7194 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7195 | ogf->types = htonl(features->types); | |
7196 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7197 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7198 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7199 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7200 | request->version); | |
7201 | } | |
7395c052 NZ |
7202 | |
7203 | return reply; | |
7204 | } | |
7205 | ||
7206 | /* Decodes group features reply 'oh' into 'features'. */ | |
7207 | void | |
7208 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7209 | struct ofputil_group_features *features) | |
7210 | { | |
7211 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7212 | int i; |
7395c052 NZ |
7213 | |
7214 | features->types = ntohl(ogf->types); | |
7215 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7216 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7217 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7218 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7219 | ogf->actions[i], oh->version); | |
7220 | } | |
7395c052 NZ |
7221 | } |
7222 | ||
7223 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7224 | * group ID and stores the latter in '*group_id'. | |
7225 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7226 | enum ofperr | |
7227 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7228 | uint32_t *group_id) | |
7229 | { | |
7230 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7231 | *group_id = ntohl(gsr11->group_id); | |
7232 | return 0; | |
7233 | } | |
7234 | ||
7235 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7236 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7237 | * caller to eventually free. | |
7395c052 NZ |
7238 | * |
7239 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7240 | * Calling this function multiple times for a single 'msg' iterates through the | |
7241 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7242 | * not modify them between calls. | |
7243 | * | |
7244 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7245 | * otherwise a positive errno value. */ | |
7246 | int | |
7247 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7248 | struct ofputil_group_stats *gs) | |
7249 | { | |
7250 | struct ofp11_bucket_counter *obc; | |
7251 | struct ofp11_group_stats *ogs11; | |
7252 | enum ofpraw raw; | |
7253 | enum ofperr error; | |
7254 | size_t base_len; | |
7255 | size_t length; | |
7256 | size_t i; | |
7257 | ||
646b2a9c | 7258 | gs->bucket_stats = NULL; |
cf3b7538 JR |
7259 | error = (msg->frame |
7260 | ? ofpraw_decode(&raw, msg->frame) | |
7395c052 NZ |
7261 | : ofpraw_pull(&raw, msg)); |
7262 | if (error) { | |
7263 | return error; | |
7264 | } | |
7265 | ||
1f317cb5 | 7266 | if (!ofpbuf_size(msg)) { |
7395c052 NZ |
7267 | return EOF; |
7268 | } | |
7269 | ||
7270 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7271 | base_len = sizeof *ogs11; | |
7272 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7273 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7274 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7275 | struct ofp13_group_stats *ogs13; | |
7276 | ||
7277 | base_len = sizeof *ogs13; | |
7278 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7279 | if (ogs13) { | |
7280 | ogs11 = &ogs13->gs; | |
7281 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7282 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7283 | } else { | |
7284 | ogs11 = NULL; | |
7285 | } | |
7286 | } else { | |
428b2edd | 7287 | OVS_NOT_REACHED(); |
7395c052 NZ |
7288 | } |
7289 | ||
7290 | if (!ogs11) { | |
437d0d22 | 7291 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 7292 | ofpraw_get_name(raw), ofpbuf_size(msg)); |
7395c052 NZ |
7293 | return OFPERR_OFPBRC_BAD_LEN; |
7294 | } | |
7295 | length = ntohs(ogs11->length); | |
7296 | if (length < sizeof base_len) { | |
34582733 | 7297 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7298 | ofpraw_get_name(raw), length); |
7299 | return OFPERR_OFPBRC_BAD_LEN; | |
7300 | } | |
7301 | ||
7302 | gs->group_id = ntohl(ogs11->group_id); | |
7303 | gs->ref_count = ntohl(ogs11->ref_count); | |
7304 | gs->packet_count = ntohll(ogs11->packet_count); | |
7305 | gs->byte_count = ntohll(ogs11->byte_count); | |
7306 | ||
7307 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7308 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7309 | if (!obc) { | |
437d0d22 | 7310 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 7311 | ofpraw_get_name(raw), ofpbuf_size(msg)); |
7395c052 NZ |
7312 | return OFPERR_OFPBRC_BAD_LEN; |
7313 | } | |
7314 | ||
646b2a9c | 7315 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7316 | for (i = 0; i < gs->n_buckets; i++) { |
7317 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7318 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7319 | } | |
7320 | ||
7321 | return 0; | |
7322 | } | |
7323 | ||
5097fee5 SH |
7324 | static void |
7325 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7326 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7327 | { | |
7328 | struct ofp11_bucket *ob; | |
7329 | size_t start; | |
7330 | ||
7331 | start = ofpbuf_size(openflow); | |
7332 | ofpbuf_put_zeros(openflow, sizeof *ob); | |
7333 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7334 | openflow, ofp_version); | |
7335 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
7336 | ob->len = htons(ofpbuf_size(openflow) - start); | |
7337 | ob->weight = htons(bucket->weight); | |
7338 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7339 | ob->watch_group = htonl(bucket->watch_group); | |
7340 | } | |
7341 | ||
18ac06d3 SH |
7342 | static void |
7343 | ofputil_put_ofp15_group_bucket_prop_weight(ovs_be16 weight, | |
7344 | struct ofpbuf *openflow) | |
7345 | { | |
7346 | size_t start_ofs; | |
7347 | struct ofp15_group_bucket_prop_weight *prop; | |
7348 | ||
7349 | start_ofs = start_property(openflow, OFPGBPT15_WEIGHT); | |
7350 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7351 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7352 | prop->weight = weight; | |
7353 | end_property(openflow, start_ofs); | |
7354 | } | |
7355 | ||
7356 | static void | |
7357 | ofputil_put_ofp15_group_bucket_prop_watch(ovs_be32 watch, uint16_t type, | |
7358 | struct ofpbuf *openflow) | |
7359 | { | |
7360 | size_t start_ofs; | |
7361 | struct ofp15_group_bucket_prop_watch *prop; | |
7362 | ||
7363 | start_ofs = start_property(openflow, type); | |
7364 | ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header)); | |
7365 | prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop); | |
7366 | prop->watch = watch; | |
7367 | end_property(openflow, start_ofs); | |
7368 | } | |
7369 | ||
7370 | static void | |
7371 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7372 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7373 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7374 | { | |
7375 | struct ofp15_bucket *ob; | |
7376 | size_t start, actions_start, actions_len; | |
7377 | ||
7378 | start = ofpbuf_size(openflow); | |
7379 | ofpbuf_put_zeros(openflow, sizeof *ob); | |
7380 | ||
7381 | actions_start = ofpbuf_size(openflow); | |
7382 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7383 | openflow, ofp_version); | |
7384 | actions_len = ofpbuf_size(openflow) - actions_start; | |
7385 | ||
7386 | if (group_type == OFPGT11_SELECT) { | |
7387 | ofputil_put_ofp15_group_bucket_prop_weight(htons(bucket->weight), | |
7388 | openflow); | |
7389 | } | |
7390 | if (bucket->watch_port != OFPP_ANY) { | |
7391 | ovs_be32 port = ofputil_port_to_ofp11(bucket->watch_port); | |
7392 | ofputil_put_ofp15_group_bucket_prop_watch(port, | |
7393 | OFPGBPT15_WATCH_PORT, | |
7394 | openflow); | |
7395 | } | |
7396 | if (bucket->watch_group != OFPG_ANY) { | |
7397 | ovs_be32 group = htonl(bucket->watch_group); | |
7398 | ofputil_put_ofp15_group_bucket_prop_watch(group, | |
7399 | OFPGBPT15_WATCH_GROUP, | |
7400 | openflow); | |
7401 | } | |
7402 | ||
7403 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
7404 | ob->len = htons(ofpbuf_size(openflow) - start); | |
7405 | ob->actions_len = htons(actions_len); | |
7406 | ob->bucket_id = htonl(bucket_id); | |
7407 | } | |
7408 | ||
5be50252 SH |
7409 | static void |
7410 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
7411 | struct list *buckets, | |
7412 | struct list *replies, | |
7413 | enum ofp_version version) | |
7395c052 NZ |
7414 | { |
7415 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7416 | struct ofp11_group_desc_stats *ogds; | |
7417 | struct ofputil_bucket *bucket; | |
7418 | size_t start_ogds; | |
7419 | ||
1f317cb5 | 7420 | start_ogds = ofpbuf_size(reply); |
7395c052 NZ |
7421 | ofpbuf_put_zeros(reply, sizeof *ogds); |
7422 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 7423 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
7424 | } |
7425 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
1f317cb5 | 7426 | ogds->length = htons(ofpbuf_size(reply) - start_ogds); |
7395c052 NZ |
7427 | ogds->type = gds->type; |
7428 | ogds->group_id = htonl(gds->group_id); | |
7429 | ||
7430 | ofpmp_postappend(replies, start_ogds); | |
7431 | } | |
7432 | ||
18ac06d3 SH |
7433 | static void |
7434 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
7435 | struct list *buckets, | |
7436 | struct list *replies, | |
7437 | enum ofp_version version) | |
7438 | { | |
7439 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7440 | struct ofp15_group_desc_stats *ogds; | |
7441 | struct ofputil_bucket *bucket; | |
7442 | size_t start_ogds, start_buckets; | |
7443 | ||
7444 | start_ogds = ofpbuf_size(reply); | |
7445 | ofpbuf_put_zeros(reply, sizeof *ogds); | |
7446 | start_buckets = ofpbuf_size(reply); | |
7447 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7448 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
7449 | gds->type, reply, version); | |
7450 | } | |
7451 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
7452 | ogds->length = htons(ofpbuf_size(reply) - start_ogds); | |
7453 | ogds->type = gds->type; | |
7454 | ogds->group_id = htonl(gds->group_id); | |
7455 | ogds->bucket_list_len = htons(ofpbuf_size(reply) - start_buckets); | |
7456 | ||
7457 | ofpmp_postappend(replies, start_ogds); | |
7458 | } | |
7459 | ||
5be50252 SH |
7460 | /* Appends a group stats reply that contains the data in 'gds' to those already |
7461 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
7462 | * initialized with ofpmp_init(). */ | |
7463 | void | |
7464 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
7465 | struct list *buckets, | |
7466 | struct list *replies) | |
7467 | { | |
7468 | enum ofp_version version = ofpmp_version(replies); | |
7469 | ||
7470 | switch (version) | |
7471 | { | |
7472 | case OFP11_VERSION: | |
7473 | case OFP12_VERSION: | |
7474 | case OFP13_VERSION: | |
7475 | case OFP14_VERSION: | |
5be50252 SH |
7476 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
7477 | break; | |
7478 | ||
18ac06d3 SH |
7479 | case OFP15_VERSION: |
7480 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
7481 | break; | |
7482 | ||
5be50252 SH |
7483 | case OFP10_VERSION: |
7484 | default: | |
7485 | OVS_NOT_REACHED(); | |
7486 | } | |
7487 | } | |
7488 | ||
7395c052 | 7489 | static enum ofperr |
655ed3ae SH |
7490 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
7491 | enum ofp_version version, struct list *buckets) | |
7395c052 NZ |
7492 | { |
7493 | struct ofp11_bucket *ob; | |
18ac06d3 | 7494 | uint32_t bucket_id = 0; |
7395c052 NZ |
7495 | |
7496 | list_init(buckets); | |
7497 | while (buckets_length > 0) { | |
7498 | struct ofputil_bucket *bucket; | |
7499 | struct ofpbuf ofpacts; | |
7500 | enum ofperr error; | |
7501 | size_t ob_len; | |
7502 | ||
7503 | ob = (buckets_length >= sizeof *ob | |
7504 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
7505 | : NULL); | |
7506 | if (!ob) { | |
34582733 | 7507 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 7508 | buckets_length); |
e27e4ce9 | 7509 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
7510 | } |
7511 | ||
7512 | ob_len = ntohs(ob->len); | |
7513 | if (ob_len < sizeof *ob) { | |
7514 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7515 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
7516 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7517 | } else if (ob_len > buckets_length) { | |
7518 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7519 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
7520 | ob_len, buckets_length); |
7521 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
7522 | } | |
7523 | buckets_length -= ob_len; | |
7524 | ||
7525 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
7526 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
7527 | version, &ofpacts); | |
7395c052 NZ |
7528 | if (error) { |
7529 | ofpbuf_uninit(&ofpacts); | |
7530 | ofputil_bucket_list_destroy(buckets); | |
7531 | return error; | |
7532 | } | |
7533 | ||
7534 | bucket = xzalloc(sizeof *bucket); | |
7535 | bucket->weight = ntohs(ob->weight); | |
7536 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
7537 | if (error) { | |
7538 | ofpbuf_uninit(&ofpacts); | |
7539 | ofputil_bucket_list_destroy(buckets); | |
7540 | return OFPERR_OFPGMFC_BAD_WATCH; | |
7541 | } | |
7542 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
7543 | bucket->bucket_id = bucket_id++; |
7544 | ||
7395c052 | 7545 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
1f317cb5 | 7546 | bucket->ofpacts_len = ofpbuf_size(&ofpacts); |
7395c052 NZ |
7547 | list_push_back(buckets, &bucket->list_node); |
7548 | } | |
7549 | ||
7550 | return 0; | |
7551 | } | |
7552 | ||
18ac06d3 SH |
7553 | static enum ofperr |
7554 | parse_ofp15_group_bucket_prop_weight(const struct ofpbuf *payload, | |
7555 | ovs_be16 *weight) | |
7556 | { | |
7557 | struct ofp15_group_bucket_prop_weight *prop = ofpbuf_data(payload); | |
7558 | ||
7559 | if (ofpbuf_size(payload) != sizeof *prop) { | |
7560 | log_property(false, "OpenFlow bucket weight property length " | |
7561 | "%u is not valid", ofpbuf_size(payload)); | |
7562 | return OFPERR_OFPBPC_BAD_LEN; | |
7563 | } | |
7564 | ||
7565 | *weight = prop->weight; | |
7566 | ||
7567 | return 0; | |
7568 | } | |
7569 | ||
7570 | static enum ofperr | |
7571 | parse_ofp15_group_bucket_prop_watch(const struct ofpbuf *payload, | |
7572 | ovs_be32 *watch) | |
7573 | { | |
7574 | struct ofp15_group_bucket_prop_watch *prop = ofpbuf_data(payload); | |
7575 | ||
7576 | if (ofpbuf_size(payload) != sizeof *prop) { | |
7577 | log_property(false, "OpenFlow bucket watch port or group " | |
7578 | "property length %u is not valid", ofpbuf_size(payload)); | |
7579 | return OFPERR_OFPBPC_BAD_LEN; | |
7580 | } | |
7581 | ||
7582 | *watch = prop->watch; | |
7583 | ||
7584 | return 0; | |
7585 | } | |
7586 | ||
7587 | static enum ofperr | |
7588 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
7589 | enum ofp_version version, struct list *buckets) | |
7590 | { | |
7591 | struct ofp15_bucket *ob; | |
7592 | ||
7593 | list_init(buckets); | |
7594 | while (buckets_length > 0) { | |
7595 | struct ofputil_bucket *bucket = NULL; | |
7596 | struct ofpbuf ofpacts; | |
7597 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
7598 | struct ofpbuf properties; | |
7599 | size_t ob_len, actions_len, properties_len; | |
7600 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
7601 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
7602 | ovs_be16 weight = htons(1); | |
7603 | ||
7604 | ofpbuf_init(&ofpacts, 0); | |
7605 | ||
7606 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
7607 | if (!ob) { | |
7608 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
7609 | " leftover bytes", buckets_length); | |
7610 | goto err; | |
7611 | } | |
7612 | ||
7613 | ob_len = ntohs(ob->len); | |
7614 | actions_len = ntohs(ob->actions_len); | |
7615 | ||
7616 | if (ob_len < sizeof *ob) { | |
7617 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
7618 | "%"PRIuSIZE" is not valid", ob_len); | |
7619 | goto err; | |
7620 | } else if (ob_len > buckets_length) { | |
7621 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
7622 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
7623 | PRIuSIZE, ob_len, buckets_length); | |
7624 | goto err; | |
7625 | } else if (actions_len > ob_len - sizeof *ob) { | |
7626 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
7627 | "length %"PRIuSIZE" exceeds remaining bucket " | |
7628 | "data size %"PRIuSIZE, actions_len, | |
7629 | ob_len - sizeof *ob); | |
7630 | goto err; | |
7631 | } | |
7632 | buckets_length -= ob_len; | |
7633 | ||
7634 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
7635 | &ofpacts); | |
7636 | if (err) { | |
7637 | goto err; | |
7638 | } | |
7639 | ||
7640 | properties_len = ob_len - sizeof *ob - actions_len; | |
7641 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
7642 | properties_len); | |
7643 | ||
7644 | while (ofpbuf_size(&properties) > 0) { | |
7645 | struct ofpbuf payload; | |
7646 | uint16_t type; | |
7647 | ||
7648 | err = ofputil_pull_property(&properties, &payload, &type); | |
7649 | if (err) { | |
7650 | goto err; | |
7651 | } | |
7652 | ||
7653 | switch (type) { | |
7654 | case OFPGBPT15_WEIGHT: | |
7655 | err = parse_ofp15_group_bucket_prop_weight(&payload, &weight); | |
7656 | break; | |
7657 | ||
7658 | case OFPGBPT15_WATCH_PORT: | |
7659 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
7660 | &watch_port); | |
7661 | break; | |
7662 | ||
7663 | case OFPGBPT15_WATCH_GROUP: | |
7664 | err = parse_ofp15_group_bucket_prop_watch(&payload, | |
7665 | &watch_group); | |
7666 | break; | |
7667 | ||
7668 | default: | |
7669 | log_property(false, "unknown group bucket property %"PRIu16, | |
7670 | type); | |
7671 | err = OFPERR_OFPBPC_BAD_TYPE; | |
7672 | break; | |
7673 | } | |
7674 | ||
7675 | if (err) { | |
7676 | goto err; | |
7677 | } | |
7678 | } | |
7679 | ||
7680 | bucket = xzalloc(sizeof *bucket); | |
7681 | ||
7682 | bucket->weight = ntohs(weight); | |
7683 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
7684 | if (err) { | |
7685 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
7686 | goto err; | |
7687 | } | |
7688 | bucket->watch_group = ntohl(watch_group); | |
7689 | bucket->bucket_id = ntohl(ob->bucket_id); | |
7690 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
7691 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
7692 | bucket->bucket_id); | |
7693 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
7694 | goto err; | |
7695 | } | |
7696 | ||
7697 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
7698 | bucket->ofpacts_len = ofpbuf_size(&ofpacts); | |
7699 | list_push_back(buckets, &bucket->list_node); | |
7700 | ||
7701 | continue; | |
7702 | ||
7703 | err: | |
7704 | free(bucket); | |
7705 | ofpbuf_uninit(&ofpacts); | |
7706 | ofputil_bucket_list_destroy(buckets); | |
7707 | return err; | |
7708 | } | |
7709 | ||
7710 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
7711 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
7712 | ofputil_bucket_list_destroy(buckets); | |
7713 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
7714 | } | |
7715 | ||
7716 | return 0; | |
7717 | } | |
7718 | ||
975910f2 SH |
7719 | static int |
7720 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
7721 | struct ofpbuf *msg, | |
7722 | enum ofp_version version) | |
7395c052 NZ |
7723 | { |
7724 | struct ofp11_group_desc_stats *ogds; | |
7725 | size_t length; | |
7726 | ||
cf3b7538 | 7727 | if (!msg->frame) { |
7395c052 NZ |
7728 | ofpraw_pull_assert(msg); |
7729 | } | |
7730 | ||
1f317cb5 | 7731 | if (!ofpbuf_size(msg)) { |
7395c052 NZ |
7732 | return EOF; |
7733 | } | |
7734 | ||
7735 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
7736 | if (!ogds) { | |
437d0d22 | 7737 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
1f317cb5 | 7738 | "leftover bytes at end", ofpbuf_size(msg)); |
7395c052 NZ |
7739 | return OFPERR_OFPBRC_BAD_LEN; |
7740 | } | |
7741 | gd->type = ogds->type; | |
7742 | gd->group_id = ntohl(ogds->group_id); | |
7743 | ||
7744 | length = ntohs(ogds->length); | |
1f317cb5 | 7745 | if (length < sizeof *ogds || length - sizeof *ogds > ofpbuf_size(msg)) { |
7395c052 | 7746 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 7747 | "length %"PRIuSIZE, length); |
7395c052 NZ |
7748 | return OFPERR_OFPBRC_BAD_LEN; |
7749 | } | |
7750 | ||
655ed3ae SH |
7751 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
7752 | &gd->buckets); | |
7395c052 NZ |
7753 | } |
7754 | ||
18ac06d3 SH |
7755 | static int |
7756 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
7757 | struct ofpbuf *msg, | |
7758 | enum ofp_version version) | |
7759 | { | |
7760 | struct ofp15_group_desc_stats *ogds; | |
7761 | uint16_t length, bucket_list_len; | |
7762 | ||
7763 | if (!msg->frame) { | |
7764 | ofpraw_pull_assert(msg); | |
7765 | } | |
7766 | ||
7767 | if (!ofpbuf_size(msg)) { | |
7768 | return EOF; | |
7769 | } | |
7770 | ||
7771 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
7772 | if (!ogds) { | |
7773 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
7774 | "leftover bytes at end", ofpbuf_size(msg)); | |
7775 | return OFPERR_OFPBRC_BAD_LEN; | |
7776 | } | |
7777 | gd->type = ogds->type; | |
7778 | gd->group_id = ntohl(ogds->group_id); | |
7779 | ||
7780 | length = ntohs(ogds->length); | |
7781 | if (length < sizeof *ogds || length - sizeof *ogds > ofpbuf_size(msg)) { | |
7782 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
7783 | "length %u", length); | |
7784 | return OFPERR_OFPBRC_BAD_LEN; | |
7785 | } | |
7786 | ||
7787 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
7788 | if (length < bucket_list_len + sizeof *ogds) { | |
7789 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
7790 | "bucket list length %u", bucket_list_len); | |
7791 | return OFPERR_OFPBRC_BAD_LEN; | |
7792 | } | |
7793 | ||
7794 | return ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, | |
7795 | &gd->buckets); | |
7796 | } | |
7797 | ||
975910f2 SH |
7798 | /* Converts a group description reply in 'msg' into an abstract |
7799 | * ofputil_group_desc in 'gd'. | |
7800 | * | |
7801 | * Multiple group description replies can be packed into a single OpenFlow | |
7802 | * message. Calling this function multiple times for a single 'msg' iterates | |
7803 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7804 | * null and not modify them between calls. | |
7805 | * | |
7806 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7807 | * otherwise a positive errno value. */ | |
7808 | int | |
7809 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
7810 | struct ofpbuf *msg, enum ofp_version version) | |
7811 | { | |
7812 | switch (version) | |
7813 | { | |
7814 | case OFP11_VERSION: | |
7815 | case OFP12_VERSION: | |
7816 | case OFP13_VERSION: | |
7817 | case OFP14_VERSION: | |
975910f2 SH |
7818 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
7819 | ||
18ac06d3 SH |
7820 | case OFP15_VERSION: |
7821 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
7822 | ||
975910f2 SH |
7823 | case OFP10_VERSION: |
7824 | default: | |
7825 | OVS_NOT_REACHED(); | |
7826 | } | |
7827 | } | |
7828 | ||
4498bea5 SH |
7829 | static struct ofpbuf * |
7830 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
7831 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
7832 | { |
7833 | struct ofpbuf *b; | |
7834 | struct ofp11_group_mod *ogm; | |
7835 | size_t start_ogm; | |
7395c052 | 7836 | struct ofputil_bucket *bucket; |
7395c052 | 7837 | |
4498bea5 SH |
7838 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
7839 | start_ogm = ofpbuf_size(b); | |
7840 | ofpbuf_put_zeros(b, sizeof *ogm); | |
7841 | ||
7842 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
7843 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
7844 | } | |
7845 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
7846 | ogm->command = htons(gm->command); | |
7847 | ogm->type = gm->type; | |
7848 | ogm->group_id = htonl(gm->group_id); | |
7849 | ||
7850 | return b; | |
7851 | } | |
7852 | ||
18ac06d3 SH |
7853 | static struct ofpbuf * |
7854 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
7855 | const struct ofputil_group_mod *gm) | |
7856 | { | |
7857 | struct ofpbuf *b; | |
7858 | struct ofp15_group_mod *ogm; | |
7859 | size_t start_ogm; | |
7860 | struct ofputil_bucket *bucket; | |
7861 | struct id_pool *bucket_ids = NULL; | |
7862 | ||
7863 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
7864 | start_ogm = ofpbuf_size(b); | |
7865 | ofpbuf_put_zeros(b, sizeof *ogm); | |
7866 | ||
7867 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
7868 | uint32_t bucket_id; | |
7869 | ||
7870 | /* Generate a bucket id if none was supplied */ | |
7871 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
7872 | if (!bucket_ids) { | |
7873 | const struct ofputil_bucket *bkt; | |
7874 | ||
7875 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
7876 | ||
7877 | /* Mark all bucket_ids that are present in gm | |
7878 | * as used in the pool. */ | |
7879 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
7880 | if (bkt == bucket) { | |
7881 | break; | |
7882 | } | |
7883 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
7884 | id_pool_add(bucket_ids, bkt->bucket_id); | |
7885 | } | |
7886 | } | |
7887 | } | |
7888 | ||
7889 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
7890 | OVS_NOT_REACHED(); | |
7891 | } | |
7892 | } else { | |
7893 | bucket_id = bucket->bucket_id; | |
7894 | } | |
7895 | ||
7896 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
7897 | } | |
7898 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
7899 | ogm->command = htons(gm->command); | |
7900 | ogm->type = gm->type; | |
7901 | ogm->group_id = htonl(gm->group_id); | |
7902 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
7903 | ogm->bucket_list_len = htons(ofpbuf_size(b) - start_ogm - sizeof *ogm); | |
7904 | ||
7905 | id_pool_destroy(bucket_ids); | |
7906 | return b; | |
7907 | } | |
7908 | ||
d4b1d0ca SH |
7909 | static void |
7910 | bad_group_cmd(enum ofp15_group_mod_command cmd) { | |
7911 | const char *opt_version; | |
7912 | const char *version; | |
7913 | const char *cmd_str; | |
7914 | ||
7915 | switch (cmd) { | |
7916 | case OFPGC15_ADD: | |
7917 | case OFPGC15_MODIFY: | |
7918 | case OFPGC15_DELETE: | |
7919 | version = "1.1"; | |
7920 | opt_version = "11"; | |
7921 | break; | |
7922 | ||
7923 | case OFPGC15_INSERT_BUCKET: | |
7924 | case OFPGC15_REMOVE_BUCKET: | |
7925 | version = "1.5"; | |
7926 | opt_version = "15"; | |
7927 | ||
7928 | default: | |
7929 | OVS_NOT_REACHED(); | |
7930 | } | |
7931 | ||
7932 | switch (cmd) { | |
7933 | case OFPGC15_ADD: | |
7934 | cmd_str = "add-group"; | |
7935 | break; | |
7936 | ||
7937 | case OFPGC15_MODIFY: | |
7938 | cmd_str = "mod-group"; | |
7939 | break; | |
7940 | ||
7941 | case OFPGC15_DELETE: | |
7942 | cmd_str = "del-group"; | |
7943 | break; | |
7944 | ||
7945 | case OFPGC15_INSERT_BUCKET: | |
7946 | cmd_str = "insert-bucket"; | |
7947 | break; | |
7948 | ||
7949 | case OFPGC15_REMOVE_BUCKET: | |
7950 | cmd_str = "insert-bucket"; | |
7951 | break; | |
7952 | ||
7953 | default: | |
7954 | OVS_NOT_REACHED(); | |
7955 | } | |
7956 | ||
7957 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
7958 | cmd_str, version, opt_version); | |
7959 | ||
7960 | } | |
7961 | ||
4498bea5 SH |
7962 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
7963 | * 'ofp_version' and returns the message. */ | |
7964 | struct ofpbuf * | |
7965 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
7966 | const struct ofputil_group_mod *gm) | |
7967 | { | |
d4b1d0ca | 7968 | |
7395c052 | 7969 | switch (ofp_version) { |
d4b1d0ca SH |
7970 | case OFP10_VERSION: |
7971 | bad_group_cmd(gm->command); | |
7395c052 NZ |
7972 | |
7973 | case OFP11_VERSION: | |
7974 | case OFP12_VERSION: | |
c37c0382 AC |
7975 | case OFP13_VERSION: |
7976 | case OFP14_VERSION: | |
d4b1d0ca SH |
7977 | if (gm->command > OFPGC11_DELETE) { |
7978 | bad_group_cmd(gm->command); | |
7979 | } | |
4498bea5 | 7980 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 7981 | |
18ac06d3 SH |
7982 | case OFP15_VERSION: |
7983 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
7984 | ||
7395c052 | 7985 | default: |
428b2edd | 7986 | OVS_NOT_REACHED(); |
7395c052 | 7987 | } |
7395c052 NZ |
7988 | } |
7989 | ||
aead63f2 SH |
7990 | static enum ofperr |
7991 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
7992 | struct ofputil_group_mod *gm) | |
7993 | { | |
7994 | const struct ofp11_group_mod *ogm; | |
7995 | ||
7996 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
7997 | gm->command = ntohs(ogm->command); | |
7998 | gm->type = ogm->type; | |
7999 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8000 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 SH |
8001 | |
8002 | return ofputil_pull_ofp11_buckets(msg, ofpbuf_size(msg), ofp_version, | |
8003 | &gm->buckets); | |
8004 | } | |
8005 | ||
18ac06d3 SH |
8006 | static enum ofperr |
8007 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8008 | struct ofputil_group_mod *gm) | |
8009 | { | |
8010 | const struct ofp15_group_mod *ogm; | |
8011 | uint16_t bucket_list_len; | |
8012 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8013 | ||
8014 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8015 | gm->command = ntohs(ogm->command); | |
8016 | gm->type = ogm->type; | |
8017 | gm->group_id = ntohl(ogm->group_id); | |
8018 | ||
8019 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8020 | switch (gm->command) { | |
8021 | case OFPGC15_REMOVE_BUCKET: | |
8022 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8023 | error = 0; | |
8024 | } | |
8025 | /* Fall through */ | |
8026 | case OFPGC15_INSERT_BUCKET: | |
8027 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8028 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8029 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8030 | error = 0; | |
8031 | } | |
8032 | break; | |
8033 | ||
8034 | case OFPGC11_ADD: | |
8035 | case OFPGC11_MODIFY: | |
8036 | case OFPGC11_DELETE: | |
8037 | default: | |
8038 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8039 | error = 0; | |
8040 | } | |
8041 | break; | |
8042 | } | |
8043 | if (error) { | |
8044 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8045 | "group command bucket id (%u) is out of range", | |
8046 | gm->command_bucket_id); | |
8047 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8048 | } | |
8049 | ||
8050 | bucket_list_len = ntohs(ogm->bucket_list_len); | |
8051 | if (bucket_list_len < ofpbuf_size(msg)) { | |
8052 | VLOG_WARN_RL(&bad_ofmsg_rl, "group has %u trailing bytes", | |
8053 | ofpbuf_size(msg) - bucket_list_len); | |
8054 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8055 | } | |
8056 | ||
8057 | return ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, | |
8058 | &gm->buckets); | |
8059 | } | |
8060 | ||
7395c052 NZ |
8061 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8062 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8063 | enum ofperr | |
8064 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8065 | struct ofputil_group_mod *gm) | |
8066 | { | |
aead63f2 | 8067 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8068 | struct ofpbuf msg; |
e57681e5 SH |
8069 | struct ofputil_bucket *bucket; |
8070 | enum ofperr err; | |
7395c052 NZ |
8071 | |
8072 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8073 | ofpraw_pull_assert(&msg); | |
8074 | ||
aead63f2 SH |
8075 | switch (ofp_version) |
8076 | { | |
8077 | case OFP11_VERSION: | |
8078 | case OFP12_VERSION: | |
8079 | case OFP13_VERSION: | |
8080 | case OFP14_VERSION: | |
aead63f2 SH |
8081 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8082 | break; | |
8083 | ||
18ac06d3 SH |
8084 | case OFP15_VERSION: |
8085 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8086 | break; | |
8087 | ||
aead63f2 SH |
8088 | case OFP10_VERSION: |
8089 | default: | |
8090 | OVS_NOT_REACHED(); | |
8091 | } | |
7395c052 | 8092 | |
e57681e5 SH |
8093 | if (err) { |
8094 | return err; | |
8095 | } | |
8096 | ||
e1799eb7 SH |
8097 | switch (gm->type) { |
8098 | case OFPGT11_INDIRECT: | |
8099 | if (!list_is_singleton(&gm->buckets)) { | |
8100 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8101 | } | |
8102 | break; | |
8103 | case OFPGT11_ALL: | |
8104 | case OFPGT11_SELECT: | |
8105 | case OFPGT11_FF: | |
8106 | break; | |
8107 | default: | |
8108 | OVS_NOT_REACHED(); | |
65075b99 SH |
8109 | } |
8110 | ||
8111 | switch (gm->command) { | |
8112 | case OFPGC11_ADD: | |
8113 | case OFPGC11_MODIFY: | |
8114 | case OFPGC11_DELETE: | |
8115 | case OFPGC15_INSERT_BUCKET: | |
8116 | break; | |
8117 | case OFPGC15_REMOVE_BUCKET: | |
8118 | if (!list_is_empty(&gm->buckets)) { | |
8119 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8120 | } | |
8121 | break; | |
8122 | default: | |
8123 | OVS_NOT_REACHED(); | |
e1799eb7 SH |
8124 | } |
8125 | ||
e57681e5 SH |
8126 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
8127 | switch (gm->type) { | |
8128 | case OFPGT11_ALL: | |
8129 | case OFPGT11_INDIRECT: | |
8130 | if (ofputil_bucket_has_liveness(bucket)) { | |
8131 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8132 | } | |
8133 | break; | |
8134 | case OFPGT11_SELECT: | |
8135 | break; | |
8136 | case OFPGT11_FF: | |
8137 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8138 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8139 | } | |
8140 | break; | |
8141 | default: | |
428b2edd | 8142 | OVS_NOT_REACHED(); |
e57681e5 SH |
8143 | } |
8144 | } | |
8145 | ||
8146 | return 0; | |
7395c052 NZ |
8147 | } |
8148 | ||
64626975 SH |
8149 | /* Parse a queue status request message into 'oqsr'. |
8150 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8151 | enum ofperr | |
8152 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8153 | struct ofputil_queue_stats_request *oqsr) | |
8154 | { | |
8155 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8156 | case OFP15_VERSION: |
c37c0382 | 8157 | case OFP14_VERSION: |
2e1ae200 | 8158 | case OFP13_VERSION: |
64626975 SH |
8159 | case OFP12_VERSION: |
8160 | case OFP11_VERSION: { | |
8161 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8162 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8163 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8164 | } | |
8165 | ||
8166 | case OFP10_VERSION: { | |
7f05e7ab JR |
8167 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8168 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8169 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8170 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
8171 | if (oqsr->port_no == OFPP_ALL) { | |
8172 | oqsr->port_no = OFPP_ANY; | |
8173 | } | |
64626975 SH |
8174 | return 0; |
8175 | } | |
8176 | ||
8177 | default: | |
428b2edd | 8178 | OVS_NOT_REACHED(); |
64626975 SH |
8179 | } |
8180 | } | |
8181 | ||
0746a84f BP |
8182 | /* Encode a queue stats request for 'oqsr', the encoded message |
8183 | * will be for OpenFlow version 'ofp_version'. Returns message | |
8184 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
8185 | struct ofpbuf * |
8186 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
8187 | const struct ofputil_queue_stats_request *oqsr) | |
8188 | { | |
8189 | struct ofpbuf *request; | |
8190 | ||
8191 | switch (ofp_version) { | |
8192 | case OFP11_VERSION: | |
2e1ae200 | 8193 | case OFP12_VERSION: |
c37c0382 | 8194 | case OFP13_VERSION: |
42dccab5 BP |
8195 | case OFP14_VERSION: |
8196 | case OFP15_VERSION: { | |
64626975 SH |
8197 | struct ofp11_queue_stats_request *req; |
8198 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
8199 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8200 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
8201 | req->queue_id = htonl(oqsr->queue_id); | |
8202 | break; | |
8203 | } | |
8204 | case OFP10_VERSION: { | |
8205 | struct ofp10_queue_stats_request *req; | |
8206 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
8207 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 8208 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
8209 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
8210 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
8211 | req->queue_id = htonl(oqsr->queue_id); |
8212 | break; | |
8213 | } | |
8214 | default: | |
428b2edd | 8215 | OVS_NOT_REACHED(); |
64626975 SH |
8216 | } |
8217 | ||
8218 | return request; | |
8219 | } | |
8220 | ||
8221 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
8222 | * message 'oh'. */ | |
8223 | size_t | |
8224 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
8225 | { | |
1bb2cdbe | 8226 | struct ofputil_queue_stats qs; |
64626975 | 8227 | struct ofpbuf b; |
1bb2cdbe | 8228 | size_t n = 0; |
64626975 SH |
8229 | |
8230 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8231 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
8232 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
8233 | n++; | |
8234 | } | |
8235 | return n; | |
64626975 SH |
8236 | } |
8237 | ||
8238 | static enum ofperr | |
8239 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
8240 | const struct ofp10_queue_stats *qs10) | |
8241 | { | |
4e022ec0 | 8242 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 8243 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
8244 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
8245 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
8246 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
8247 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8248 | |
8249 | return 0; | |
8250 | } | |
8251 | ||
8252 | static enum ofperr | |
8253 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
8254 | const struct ofp11_queue_stats *qs11) | |
8255 | { | |
8256 | enum ofperr error; | |
8257 | ||
8258 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
8259 | if (error) { | |
8260 | return error; | |
8261 | } | |
8262 | ||
8263 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
8264 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
8265 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
8266 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
8267 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8268 | |
8269 | return 0; | |
8270 | } | |
8271 | ||
2e1ae200 JR |
8272 | static enum ofperr |
8273 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
8274 | const struct ofp13_queue_stats *qs13) | |
8275 | { | |
6dc34a0d | 8276 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 8277 | if (!error) { |
6dc34a0d BP |
8278 | oqs->duration_sec = ntohl(qs13->duration_sec); |
8279 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
8280 | } |
8281 | ||
8282 | return error; | |
8283 | } | |
8284 | ||
1bb2cdbe BP |
8285 | static enum ofperr |
8286 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
8287 | struct ofpbuf *msg) | |
8288 | { | |
8289 | const struct ofp14_queue_stats *qs14; | |
8290 | size_t len; | |
8291 | ||
8292 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
8293 | if (!qs14) { | |
8294 | return OFPERR_OFPBRC_BAD_LEN; | |
8295 | } | |
8296 | ||
8297 | len = ntohs(qs14->length); | |
8298 | if (len < sizeof *qs14 || len - sizeof *qs14 > ofpbuf_size(msg)) { | |
8299 | return OFPERR_OFPBRC_BAD_LEN; | |
8300 | } | |
8301 | ofpbuf_pull(msg, len - sizeof *qs14); | |
8302 | ||
8303 | /* No properties yet defined, so ignore them for now. */ | |
8304 | ||
8305 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
8306 | } | |
8307 | ||
64626975 SH |
8308 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
8309 | * ofputil_queue_stats in 'qs'. | |
8310 | * | |
8311 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
8312 | * message. Calling this function multiple times for a single 'msg' iterates | |
8313 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8314 | * null and not modify them between calls. | |
8315 | * | |
8316 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8317 | * otherwise a positive errno value. */ | |
8318 | int | |
8319 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
8320 | { | |
8321 | enum ofperr error; | |
8322 | enum ofpraw raw; | |
8323 | ||
cf3b7538 JR |
8324 | error = (msg->frame |
8325 | ? ofpraw_decode(&raw, msg->frame) | |
64626975 SH |
8326 | : ofpraw_pull(&raw, msg)); |
8327 | if (error) { | |
8328 | return error; | |
8329 | } | |
8330 | ||
1f317cb5 | 8331 | if (!ofpbuf_size(msg)) { |
64626975 | 8332 | return EOF; |
1bb2cdbe BP |
8333 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
8334 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
8335 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
8336 | const struct ofp13_queue_stats *qs13; | |
8337 | ||
8338 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
8339 | if (!qs13) { | |
8340 | goto bad_len; | |
8341 | } | |
8342 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
8343 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
8344 | const struct ofp11_queue_stats *qs11; | |
8345 | ||
8346 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
8347 | if (!qs11) { | |
2e1ae200 | 8348 | goto bad_len; |
64626975 SH |
8349 | } |
8350 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
8351 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
8352 | const struct ofp10_queue_stats *qs10; | |
8353 | ||
8354 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
8355 | if (!qs10) { | |
2e1ae200 | 8356 | goto bad_len; |
64626975 SH |
8357 | } |
8358 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
8359 | } else { | |
428b2edd | 8360 | OVS_NOT_REACHED(); |
64626975 | 8361 | } |
2e1ae200 JR |
8362 | |
8363 | bad_len: | |
437d0d22 | 8364 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
1f317cb5 | 8365 | "bytes at end", ofpbuf_size(msg)); |
2e1ae200 | 8366 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
8367 | } |
8368 | ||
8369 | static void | |
8370 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
8371 | struct ofp10_queue_stats *qs10) | |
8372 | { | |
4e022ec0 | 8373 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
8374 | memset(qs10->pad, 0, sizeof qs10->pad); |
8375 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
8376 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
8377 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
8378 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
8379 | } |
8380 | ||
8381 | static void | |
8382 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
8383 | struct ofp11_queue_stats *qs11) | |
8384 | { | |
8385 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
8386 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
8387 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
8388 | qs11->tx_packets = htonll(oqs->tx_packets); | |
8389 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
8390 | } |
8391 | ||
2e1ae200 JR |
8392 | static void |
8393 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
8394 | struct ofp13_queue_stats *qs13) | |
8395 | { | |
8396 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
8397 | if (oqs->duration_sec != UINT32_MAX) { |
8398 | qs13->duration_sec = htonl(oqs->duration_sec); | |
8399 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
8400 | } else { | |
b8266395 BP |
8401 | qs13->duration_sec = OVS_BE32_MAX; |
8402 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 8403 | } |
2e1ae200 JR |
8404 | } |
8405 | ||
1bb2cdbe BP |
8406 | static void |
8407 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
8408 | struct ofp14_queue_stats *qs14) | |
8409 | { | |
8410 | qs14->length = htons(sizeof *qs14); | |
8411 | memset(qs14->pad, 0, sizeof qs14->pad); | |
8412 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
8413 | } | |
8414 | ||
8415 | ||
64626975 SH |
8416 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
8417 | void | |
8418 | ofputil_append_queue_stat(struct list *replies, | |
8419 | const struct ofputil_queue_stats *oqs) | |
8420 | { | |
e28ac5cf | 8421 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
8422 | case OFP13_VERSION: { |
8423 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
8424 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
8425 | break; | |
8426 | } | |
8427 | ||
64626975 SH |
8428 | case OFP12_VERSION: |
8429 | case OFP11_VERSION: { | |
2e1ae200 | 8430 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
8431 | ofputil_queue_stats_to_ofp11(oqs, reply); |
8432 | break; | |
8433 | } | |
8434 | ||
8435 | case OFP10_VERSION: { | |
2e1ae200 | 8436 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
8437 | ofputil_queue_stats_to_ofp10(oqs, reply); |
8438 | break; | |
8439 | } | |
8440 | ||
42dccab5 BP |
8441 | case OFP14_VERSION: |
8442 | case OFP15_VERSION: { | |
1bb2cdbe BP |
8443 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
8444 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 8445 | break; |
1bb2cdbe | 8446 | } |
c37c0382 | 8447 | |
64626975 | 8448 | default: |
428b2edd | 8449 | OVS_NOT_REACHED(); |
64626975 SH |
8450 | } |
8451 | } | |
777af88d AC |
8452 | |
8453 | enum ofperr | |
8454 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
8455 | struct ofputil_bundle_ctrl_msg *msg) | |
8456 | { | |
8457 | struct ofpbuf b; | |
8458 | enum ofpraw raw; | |
8459 | const struct ofp14_bundle_ctrl_msg *m; | |
8460 | ||
8461 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8462 | raw = ofpraw_pull_assert(&b); | |
8463 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
8464 | ||
8465 | m = ofpbuf_l3(&b); | |
8466 | msg->bundle_id = ntohl(m->bundle_id); | |
8467 | msg->type = ntohs(m->type); | |
8468 | msg->flags = ntohs(m->flags); | |
8469 | ||
8470 | return 0; | |
8471 | } | |
8472 | ||
8473 | struct ofpbuf * | |
8474 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
8475 | struct ofputil_bundle_ctrl_msg *msg) | |
8476 | { | |
8477 | struct ofpbuf *buf; | |
8478 | struct ofp14_bundle_ctrl_msg *m; | |
8479 | ||
8480 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
8481 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
8482 | ||
8483 | m->bundle_id = htonl(msg->bundle_id); | |
8484 | m->type = htons(msg->type); | |
8485 | m->flags = htons(msg->flags); | |
8486 | ||
8487 | return buf; | |
8488 | } | |
8489 | ||
8490 | enum ofperr | |
8491 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
8492 | struct ofputil_bundle_add_msg *msg) | |
8493 | { | |
8494 | const struct ofp14_bundle_ctrl_msg *m; | |
8495 | struct ofpbuf b; | |
8496 | enum ofpraw raw; | |
8497 | size_t inner_len; | |
8498 | ||
8499 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8500 | raw = ofpraw_pull_assert(&b); | |
8501 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
8502 | ||
8503 | m = ofpbuf_pull(&b, sizeof *m); | |
8504 | msg->bundle_id = ntohl(m->bundle_id); | |
8505 | msg->flags = ntohs(m->flags); | |
8506 | ||
8507 | msg->msg = ofpbuf_data(&b); | |
8508 | inner_len = ntohs(msg->msg->length); | |
8509 | if (inner_len < sizeof(struct ofp_header) || inner_len > ofpbuf_size(&b)) { | |
8510 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
8511 | } | |
8512 | ||
8513 | return 0; | |
8514 | } | |
8515 | ||
8516 | struct ofpbuf * | |
8517 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
8518 | struct ofputil_bundle_add_msg *msg) | |
8519 | { | |
8520 | struct ofpbuf *request; | |
8521 | struct ofp14_bundle_ctrl_msg *m; | |
8522 | ||
8523 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, 0); | |
8524 | m = ofpbuf_put_zeros(request, sizeof *m); | |
8525 | ||
8526 | m->bundle_id = htonl(msg->bundle_id); | |
8527 | m->flags = htons(msg->flags); | |
8528 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
8529 | ||
8530 | return request; | |
8531 | } |