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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" |
f25d0cf3 | 35 | #include "ofp-actions.h" |
dc4762ed | 36 | #include "ofp-errors.h" |
982697a4 | 37 | #include "ofp-msgs.h" |
fa37b408 BP |
38 | #include "ofp-util.h" |
39 | #include "ofpbuf.h" | |
40 | #include "packets.h" | |
41 | #include "random.h" | |
4ffd1b43 | 42 | #include "unaligned.h" |
e41a9130 | 43 | #include "type-props.h" |
5136ce49 | 44 | #include "vlog.h" |
5deff5aa | 45 | #include "bitmap.h" |
fa37b408 | 46 | |
d98e6007 | 47 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
48 | |
49 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
50 | * in the peer and so there's not much point in showing a lot of them. */ | |
51 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
52 | ||
3c1bb396 BP |
53 | static enum ofputil_table_miss ofputil_table_miss_from_config( |
54 | ovs_be32 config_, enum ofp_version); | |
55 | ||
9a4eddbb BP |
56 | struct ofp_prop_header { |
57 | ovs_be16 type; | |
58 | ovs_be16 len; | |
59 | }; | |
60 | ||
61 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning | |
62 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
63 | * nonnull, the entire property, including the header, in '*property'. Returns | |
72b25867 BP |
64 | * 0 if successful, otherwise an error code. |
65 | * | |
66 | * This function pulls the property's stated size padded out to a multiple of | |
67 | * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so | |
68 | * you can use ofputil_pull_property() for that case. */ | |
9a4eddbb | 69 | static enum ofperr |
72b25867 BP |
70 | ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property, |
71 | unsigned int alignment, uint16_t *typep) | |
9a4eddbb BP |
72 | { |
73 | struct ofp_prop_header *oph; | |
72b25867 | 74 | unsigned int padded_len; |
9a4eddbb BP |
75 | unsigned int len; |
76 | ||
77 | if (ofpbuf_size(msg) < sizeof *oph) { | |
78 | return OFPERR_OFPBPC_BAD_LEN; | |
79 | } | |
80 | ||
81 | oph = ofpbuf_data(msg); | |
82 | len = ntohs(oph->len); | |
72b25867 BP |
83 | padded_len = ROUND_UP(len, alignment); |
84 | if (len < sizeof *oph || padded_len > ofpbuf_size(msg)) { | |
9a4eddbb BP |
85 | return OFPERR_OFPBPC_BAD_LEN; |
86 | } | |
87 | ||
88 | *typep = ntohs(oph->type); | |
89 | if (property) { | |
90 | ofpbuf_use_const(property, ofpbuf_data(msg), len); | |
91 | } | |
72b25867 | 92 | ofpbuf_pull(msg, padded_len); |
9a4eddbb BP |
93 | return 0; |
94 | } | |
95 | ||
72b25867 BP |
96 | /* Pulls a property, beginning with struct ofp_prop_header, from the beginning |
97 | * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is | |
98 | * nonnull, the entire property, including the header, in '*property'. Returns | |
99 | * 0 if successful, otherwise an error code. | |
100 | * | |
101 | * This function pulls the property's stated size padded out to a multiple of | |
102 | * 8 bytes, which is the common case for OpenFlow properties. */ | |
103 | static enum ofperr | |
104 | ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property, | |
105 | uint16_t *typep) | |
106 | { | |
107 | return ofputil_pull_property__(msg, property, 8, typep); | |
108 | } | |
109 | ||
9a4eddbb BP |
110 | static void PRINTF_FORMAT(2, 3) |
111 | log_property(bool loose, const char *message, ...) | |
112 | { | |
113 | enum vlog_level level = loose ? VLL_DBG : VLL_WARN; | |
114 | if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) { | |
115 | va_list args; | |
116 | ||
117 | va_start(args, message); | |
118 | vlog_valist(THIS_MODULE, level, message, args); | |
119 | va_end(args); | |
120 | } | |
121 | } | |
8c3cc785 | 122 | |
3c4e10fb BP |
123 | static size_t |
124 | start_property(struct ofpbuf *msg, uint16_t type) | |
125 | { | |
126 | size_t start_ofs = ofpbuf_size(msg); | |
127 | struct ofp_prop_header *oph; | |
128 | ||
129 | oph = ofpbuf_put_uninit(msg, sizeof *oph); | |
130 | oph->type = htons(type); | |
131 | oph->len = htons(4); /* May be updated later by end_property(). */ | |
132 | return start_ofs; | |
133 | } | |
134 | ||
135 | static void | |
136 | end_property(struct ofpbuf *msg, size_t start_ofs) | |
137 | { | |
138 | struct ofp_prop_header *oph; | |
139 | ||
140 | oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph); | |
141 | oph->len = htons(ofpbuf_size(msg) - start_ofs); | |
142 | ofpbuf_padto(msg, ROUND_UP(ofpbuf_size(msg), 8)); | |
143 | } | |
144 | ||
145 | static void | |
146 | put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap) | |
147 | { | |
148 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
149 | start_property(msg, rightmost_1bit_idx(bitmap)); | |
150 | } | |
151 | } | |
152 | ||
0596e897 BP |
153 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
154 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
155 | * is wildcarded. | |
156 | * | |
157 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
158 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
159 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
160 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
161 | * wildcarded. */ | |
162 | ovs_be32 | |
163 | ofputil_wcbits_to_netmask(int wcbits) | |
164 | { | |
165 | wcbits &= 0x3f; | |
166 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
167 | } | |
168 | ||
169 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
170 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
171 | * between 0 and 32 inclusive. | |
172 | * | |
173 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
174 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
175 | int |
176 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
177 | { | |
aad29cd1 | 178 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
179 | } |
180 | ||
eec25dc1 | 181 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 182 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
183 | * responsibility to handle the special case where the flow match's dl_vlan is |
184 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 185 | void |
eec25dc1 | 186 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 187 | { |
0e612675 | 188 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 27); |
a877206f | 189 | |
81a76618 | 190 | /* Initialize most of wc. */ |
f9ba8dad | 191 | flow_wildcards_init_catchall(wc); |
bad68a99 | 192 | |
0bdc4bec | 193 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 194 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 195 | } |
5d9499c4 BP |
196 | |
197 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 198 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 199 | } |
7257b535 | 200 | |
851d3105 | 201 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 202 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 203 | } |
26720e24 BP |
204 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
205 | >> OFPFW10_NW_SRC_SHIFT); | |
206 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
207 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 208 | |
eec25dc1 | 209 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 210 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 211 | } |
eec25dc1 | 212 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 213 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
214 | } |
215 | ||
eec25dc1 | 216 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
26720e24 | 217 | memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN); |
73c0ce34 | 218 | } |
eec25dc1 | 219 | if (!(ofpfw & OFPFW10_DL_DST)) { |
26720e24 | 220 | memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN); |
d8ae4d67 | 221 | } |
e2170cff | 222 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 223 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 224 | } |
d8ae4d67 | 225 | |
eb6f28db | 226 | /* VLAN TCI mask. */ |
eec25dc1 | 227 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 228 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 229 | } |
eec25dc1 | 230 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 231 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
232 | } |
233 | } | |
234 | ||
81a76618 | 235 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 236 | void |
81a76618 BP |
237 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
238 | struct match *match) | |
239 | { | |
240 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
241 | ||
242 | /* Initialize match->wc. */ | |
296e07ac | 243 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
244 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
245 | ||
246 | /* Initialize most of match->flow. */ | |
247 | match->flow.nw_src = ofmatch->nw_src; | |
248 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 249 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
250 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
251 | match->flow.tp_src = ofmatch->tp_src; | |
252 | match->flow.tp_dst = ofmatch->tp_dst; | |
253 | memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN); | |
254 | memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN); | |
255 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; | |
256 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 257 | |
66642cb4 | 258 | /* Translate VLANs. */ |
0c436519 | 259 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 260 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
261 | /* Match only packets without 802.1Q header. |
262 | * | |
eec25dc1 | 263 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 264 | * |
eec25dc1 | 265 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
266 | * because we can't have a specific PCP without an 802.1Q header. |
267 | * However, older versions of OVS treated this as matching packets | |
268 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
269 | match->flow.vlan_tci = htons(0); |
270 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
271 | } else { |
272 | ovs_be16 vid, pcp, tci; | |
bf062576 | 273 | uint16_t hpcp; |
47271d0d | 274 | |
81a76618 | 275 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
276 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
277 | pcp = htons(hpcp); | |
47271d0d | 278 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 279 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
280 | } |
281 | ||
d8ae4d67 | 282 | /* Clean up. */ |
81a76618 | 283 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
284 | } |
285 | ||
81a76618 | 286 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 287 | void |
81a76618 BP |
288 | ofputil_match_to_ofp10_match(const struct match *match, |
289 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 290 | { |
81a76618 | 291 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 292 | uint32_t ofpfw; |
d8ae4d67 | 293 | |
66642cb4 | 294 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 295 | ofpfw = 0; |
4e022ec0 | 296 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
297 | ofpfw |= OFPFW10_IN_PORT; |
298 | } | |
26720e24 | 299 | if (!wc->masks.dl_type) { |
27cafc5f BP |
300 | ofpfw |= OFPFW10_DL_TYPE; |
301 | } | |
26720e24 | 302 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
303 | ofpfw |= OFPFW10_NW_PROTO; |
304 | } | |
26720e24 | 305 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 306 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 307 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 308 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 309 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 310 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 311 | } |
26720e24 | 312 | if (!wc->masks.tp_src) { |
eec25dc1 | 313 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 314 | } |
26720e24 | 315 | if (!wc->masks.tp_dst) { |
eec25dc1 | 316 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 317 | } |
26720e24 | 318 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 319 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 320 | } |
26720e24 | 321 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 322 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 323 | } |
ff9d3826 | 324 | |
66642cb4 | 325 | /* Translate VLANs. */ |
81a76618 BP |
326 | ofmatch->dl_vlan = htons(0); |
327 | ofmatch->dl_vlan_pcp = 0; | |
328 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 329 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
330 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
331 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
332 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
41ca9a1e | 333 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 334 | } else { |
81a76618 | 335 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 336 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 337 | } else { |
81a76618 | 338 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
339 | } |
340 | ||
81a76618 | 341 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 342 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 343 | } else { |
81a76618 | 344 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
345 | } |
346 | } | |
347 | ||
348 | /* Compose most of the match structure. */ | |
81a76618 | 349 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 350 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
81a76618 BP |
351 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
352 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); | |
353 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); | |
354 | ofmatch->nw_src = match->flow.nw_src; | |
355 | ofmatch->nw_dst = match->flow.nw_dst; | |
356 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
357 | ofmatch->nw_proto = match->flow.nw_proto; | |
358 | ofmatch->tp_src = match->flow.tp_src; | |
359 | ofmatch->tp_dst = match->flow.tp_dst; | |
360 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
361 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
362 | } |
363 | ||
aa319503 | 364 | enum ofperr |
81a76618 BP |
365 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
366 | uint16_t *padded_match_len) | |
aa319503 | 367 | { |
1f317cb5 | 368 | struct ofp11_match_header *omh = ofpbuf_data(buf); |
36a16881 | 369 | uint16_t match_len; |
aa319503 | 370 | |
1f317cb5 | 371 | if (ofpbuf_size(buf) < sizeof *omh) { |
aa319503 BP |
372 | return OFPERR_OFPBMC_BAD_LEN; |
373 | } | |
374 | ||
36a16881 SH |
375 | match_len = ntohs(omh->length); |
376 | ||
aa319503 | 377 | switch (ntohs(omh->type)) { |
36a16881 SH |
378 | case OFPMT_STANDARD: { |
379 | struct ofp11_match *om; | |
380 | ||
1f317cb5 | 381 | if (match_len != sizeof *om || ofpbuf_size(buf) < sizeof *om) { |
aa319503 BP |
382 | return OFPERR_OFPBMC_BAD_LEN; |
383 | } | |
384 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
385 | if (padded_match_len) { |
386 | *padded_match_len = match_len; | |
387 | } | |
81a76618 | 388 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
389 | } |
390 | ||
391 | case OFPMT_OXM: | |
392 | if (padded_match_len) { | |
393 | *padded_match_len = ROUND_UP(match_len, 8); | |
394 | } | |
81a76618 | 395 | return oxm_pull_match(buf, match); |
aa319503 BP |
396 | |
397 | default: | |
398 | return OFPERR_OFPBMC_BAD_TYPE; | |
399 | } | |
400 | } | |
401 | ||
3f0f48cf YT |
402 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
403 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 404 | enum ofperr |
81a76618 BP |
405 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
406 | struct match *match) | |
410698cf | 407 | { |
81a76618 | 408 | uint16_t wc = ntohl(ofmatch->wildcards); |
410698cf BP |
409 | uint8_t dl_src_mask[ETH_ADDR_LEN]; |
410 | uint8_t dl_dst_mask[ETH_ADDR_LEN]; | |
8087f5ff | 411 | bool ipv4, arp, rarp; |
410698cf BP |
412 | int i; |
413 | ||
81a76618 | 414 | match_init_catchall(match); |
410698cf BP |
415 | |
416 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 417 | ofp_port_t ofp_port; |
410698cf BP |
418 | enum ofperr error; |
419 | ||
81a76618 | 420 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
421 | if (error) { |
422 | return OFPERR_OFPBMC_BAD_VALUE; | |
423 | } | |
81a76618 | 424 | match_set_in_port(match, ofp_port); |
410698cf BP |
425 | } |
426 | ||
427 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 428 | dl_src_mask[i] = ~ofmatch->dl_src_mask[i]; |
410698cf | 429 | } |
81a76618 | 430 | match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask); |
410698cf BP |
431 | |
432 | for (i = 0; i < ETH_ADDR_LEN; i++) { | |
81a76618 | 433 | dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i]; |
410698cf | 434 | } |
81a76618 | 435 | match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask); |
410698cf BP |
436 | |
437 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 438 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 439 | /* Match only packets without a VLAN tag. */ |
81a76618 | 440 | match->flow.vlan_tci = htons(0); |
b8266395 | 441 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 442 | } else { |
81a76618 | 443 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 444 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
445 | match->flow.vlan_tci = htons(VLAN_CFI); |
446 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
447 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 448 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
449 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
450 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
451 | } else { |
452 | /* Invalid VID. */ | |
453 | return OFPERR_OFPBMC_BAD_VALUE; | |
454 | } | |
455 | ||
456 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
457 | if (ofmatch->dl_vlan_pcp <= 7) { |
458 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
459 | << VLAN_PCP_SHIFT); | |
460 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
461 | } else { |
462 | /* Invalid PCP. */ | |
463 | return OFPERR_OFPBMC_BAD_VALUE; | |
464 | } | |
465 | } | |
466 | } | |
467 | } | |
468 | ||
469 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
470 | match_set_dl_type(match, |
471 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
472 | } |
473 | ||
81a76618 BP |
474 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
475 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 476 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
477 | |
478 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 479 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
480 | /* Invalid TOS. */ |
481 | return OFPERR_OFPBMC_BAD_VALUE; | |
482 | } | |
483 | ||
81a76618 | 484 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
485 | } |
486 | ||
8087f5ff | 487 | if (ipv4 || arp || rarp) { |
410698cf | 488 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 489 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 490 | } |
81a76618 BP |
491 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
492 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
493 | } |
494 | ||
495 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
496 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 497 | switch (match->flow.nw_proto) { |
410698cf BP |
498 | case IPPROTO_ICMP: |
499 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
500 | * | |
501 | * The tp_src and tp_dst fields will be ignored unless the | |
502 | * network protocol specified is as TCP, UDP or SCTP. | |
503 | * | |
504 | * but I'm pretty sure we should support ICMP too, otherwise | |
505 | * that's a regression from OF1.0. */ | |
506 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 507 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 508 | if (icmp_type < 0x100) { |
81a76618 | 509 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
510 | } else { |
511 | return OFPERR_OFPBMC_BAD_FIELD; | |
512 | } | |
513 | } | |
514 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 515 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 516 | if (icmp_code < 0x100) { |
81a76618 | 517 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
518 | } else { |
519 | return OFPERR_OFPBMC_BAD_FIELD; | |
520 | } | |
521 | } | |
522 | break; | |
523 | ||
524 | case IPPROTO_TCP: | |
525 | case IPPROTO_UDP: | |
0d56eaf2 | 526 | case IPPROTO_SCTP: |
410698cf | 527 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 528 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
529 | } |
530 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 531 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
532 | } |
533 | break; | |
534 | ||
410698cf BP |
535 | default: |
536 | /* OF1.1 says explicitly to ignore this. */ | |
537 | break; | |
538 | } | |
539 | } | |
540 | ||
b02475c5 | 541 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 542 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 543 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
544 | } |
545 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 546 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
547 | } |
548 | } | |
549 | ||
81a76618 BP |
550 | match_set_metadata_masked(match, ofmatch->metadata, |
551 | ~ofmatch->metadata_mask); | |
410698cf BP |
552 | |
553 | return 0; | |
554 | } | |
555 | ||
81a76618 | 556 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 557 | void |
81a76618 BP |
558 | ofputil_match_to_ofp11_match(const struct match *match, |
559 | struct ofp11_match *ofmatch) | |
410698cf BP |
560 | { |
561 | uint32_t wc = 0; | |
562 | int i; | |
563 | ||
81a76618 BP |
564 | memset(ofmatch, 0, sizeof *ofmatch); |
565 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
566 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 567 | |
4e022ec0 | 568 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
569 | wc |= OFPFW11_IN_PORT; |
570 | } else { | |
4e022ec0 | 571 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
572 | } |
573 | ||
81a76618 | 574 | memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN); |
410698cf | 575 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 576 | ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i]; |
410698cf BP |
577 | } |
578 | ||
81a76618 | 579 | memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN); |
410698cf | 580 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
81a76618 | 581 | ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i]; |
410698cf BP |
582 | } |
583 | ||
81a76618 | 584 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 585 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
586 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
587 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
588 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
589 | wc |= OFPFW11_DL_VLAN_PCP; |
590 | } else { | |
81a76618 BP |
591 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
592 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 593 | } else { |
81a76618 | 594 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
595 | } |
596 | ||
81a76618 | 597 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
598 | wc |= OFPFW11_DL_VLAN_PCP; |
599 | } else { | |
81a76618 | 600 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
601 | } |
602 | } | |
603 | ||
81a76618 | 604 | if (!match->wc.masks.dl_type) { |
410698cf BP |
605 | wc |= OFPFW11_DL_TYPE; |
606 | } else { | |
81a76618 | 607 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
608 | } |
609 | ||
81a76618 | 610 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
611 | wc |= OFPFW11_NW_TOS; |
612 | } else { | |
81a76618 | 613 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
614 | } |
615 | ||
81a76618 | 616 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
617 | wc |= OFPFW11_NW_PROTO; |
618 | } else { | |
81a76618 | 619 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
620 | } |
621 | ||
81a76618 BP |
622 | ofmatch->nw_src = match->flow.nw_src; |
623 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
624 | ofmatch->nw_dst = match->flow.nw_dst; | |
625 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 626 | |
81a76618 | 627 | if (!match->wc.masks.tp_src) { |
410698cf BP |
628 | wc |= OFPFW11_TP_SRC; |
629 | } else { | |
81a76618 | 630 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
631 | } |
632 | ||
81a76618 | 633 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
634 | wc |= OFPFW11_TP_DST; |
635 | } else { | |
81a76618 | 636 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
637 | } |
638 | ||
8bfd0fda | 639 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
640 | wc |= OFPFW11_MPLS_LABEL; |
641 | } else { | |
8bfd0fda BP |
642 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
643 | match->flow.mpls_lse[0])); | |
097d4939 JR |
644 | } |
645 | ||
8bfd0fda | 646 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
647 | wc |= OFPFW11_MPLS_TC; |
648 | } else { | |
8bfd0fda | 649 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 650 | } |
410698cf | 651 | |
81a76618 BP |
652 | ofmatch->metadata = match->flow.metadata; |
653 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 654 | |
81a76618 | 655 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
656 | } |
657 | ||
75fa58f8 BP |
658 | /* Returns the "typical" length of a match for 'protocol', for use in |
659 | * estimating space to preallocate. */ | |
660 | int | |
661 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
662 | { | |
663 | switch (protocol) { | |
664 | case OFPUTIL_P_OF10_STD: | |
665 | case OFPUTIL_P_OF10_STD_TID: | |
666 | return sizeof(struct ofp10_match); | |
667 | ||
668 | case OFPUTIL_P_OF10_NXM: | |
669 | case OFPUTIL_P_OF10_NXM_TID: | |
670 | return NXM_TYPICAL_LEN; | |
671 | ||
672 | case OFPUTIL_P_OF11_STD: | |
673 | return sizeof(struct ofp11_match); | |
674 | ||
675 | case OFPUTIL_P_OF12_OXM: | |
676 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 677 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 678 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
679 | return NXM_TYPICAL_LEN; |
680 | ||
681 | default: | |
428b2edd | 682 | OVS_NOT_REACHED(); |
75fa58f8 BP |
683 | } |
684 | } | |
685 | ||
686 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
687 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
688 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
689 | * in OpenFlow 1.1 or later. | |
690 | * | |
691 | * This function can cause 'b''s data to be reallocated. | |
692 | * | |
693 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
694 | * returns zero. */ | |
695 | int | |
696 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
697 | enum ofputil_protocol protocol) | |
698 | { | |
699 | switch (protocol) { | |
700 | case OFPUTIL_P_OF10_STD: | |
701 | case OFPUTIL_P_OF10_STD_TID: | |
702 | case OFPUTIL_P_OF10_NXM: | |
703 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 704 | OVS_NOT_REACHED(); |
75fa58f8 BP |
705 | |
706 | case OFPUTIL_P_OF11_STD: { | |
707 | struct ofp11_match *om; | |
708 | ||
709 | /* Make sure that no padding is needed. */ | |
710 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
711 | ||
712 | om = ofpbuf_put_uninit(b, sizeof *om); | |
713 | ofputil_match_to_ofp11_match(match, om); | |
714 | return sizeof *om; | |
715 | } | |
716 | ||
717 | case OFPUTIL_P_OF12_OXM: | |
718 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 719 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 720 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
721 | return oxm_put_match(b, match, |
722 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
723 | } |
724 | ||
428b2edd | 725 | OVS_NOT_REACHED(); |
75fa58f8 BP |
726 | } |
727 | ||
36956a7d | 728 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
729 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
730 | * structure. */ | |
36956a7d BP |
731 | ovs_be16 |
732 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
733 | { | |
734 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
735 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
736 | : flow_dl_type); | |
737 | } | |
738 | ||
eec25dc1 | 739 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
740 | * structure, returns the corresponding 'dl_type' value for use in struct |
741 | * flow. */ | |
742 | ovs_be16 | |
743 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
744 | { | |
745 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
746 | ? htons(FLOW_DL_TYPE_NONE) | |
747 | : ofp_dl_type); | |
748 | } | |
2e4f5fcf | 749 | \f |
27527aa0 | 750 | /* Protocols. */ |
7fa91113 | 751 | |
27527aa0 BP |
752 | struct proto_abbrev { |
753 | enum ofputil_protocol protocol; | |
754 | const char *name; | |
755 | }; | |
756 | ||
757 | /* Most users really don't care about some of the differences between | |
aa233d57 | 758 | * protocols. These abbreviations help with that. */ |
27527aa0 | 759 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
760 | { OFPUTIL_P_ANY, "any" }, |
761 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
762 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
763 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
764 | }; |
765 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
766 | ||
767 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 768 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 769 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 770 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 771 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 772 | OFPUTIL_P_OF11_STD, |
85813857 BP |
773 | OFPUTIL_P_OF10_NXM, |
774 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
775 | }; |
776 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
777 | ||
4f13da56 BP |
778 | /* Returns the set of ofputil_protocols that are supported with the given |
779 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
780 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
781 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 782 | enum ofputil_protocol |
4f13da56 | 783 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
784 | { |
785 | switch (version) { | |
2e3fa633 | 786 | case OFP10_VERSION: |
4f13da56 | 787 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
788 | case OFP11_VERSION: |
789 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 790 | case OFP12_VERSION: |
85813857 | 791 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
792 | case OFP13_VERSION: |
793 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
794 | case OFP14_VERSION: |
795 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
796 | case OFP15_VERSION: |
797 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
798 | default: |
799 | return 0; | |
27527aa0 BP |
800 | } |
801 | } | |
802 | ||
4f13da56 BP |
803 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
804 | * connection that has negotiated the given 'version'. 'version' should | |
805 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
806 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
807 | * outside the valid range. */ | |
808 | enum ofputil_protocol | |
809 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
810 | { | |
811 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
812 | } | |
813 | ||
44d3732d | 814 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 815 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 816 | enum ofp_version |
9e1fd49b BP |
817 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
818 | { | |
819 | switch (protocol) { | |
85813857 BP |
820 | case OFPUTIL_P_OF10_STD: |
821 | case OFPUTIL_P_OF10_STD_TID: | |
822 | case OFPUTIL_P_OF10_NXM: | |
823 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 824 | return OFP10_VERSION; |
75fa58f8 BP |
825 | case OFPUTIL_P_OF11_STD: |
826 | return OFP11_VERSION; | |
85813857 | 827 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 828 | return OFP12_VERSION; |
2e1ae200 JR |
829 | case OFPUTIL_P_OF13_OXM: |
830 | return OFP13_VERSION; | |
c37c0382 AC |
831 | case OFPUTIL_P_OF14_OXM: |
832 | return OFP14_VERSION; | |
42dccab5 BP |
833 | case OFPUTIL_P_OF15_OXM: |
834 | return OFP15_VERSION; | |
9e1fd49b BP |
835 | } |
836 | ||
428b2edd | 837 | OVS_NOT_REACHED(); |
9e1fd49b BP |
838 | } |
839 | ||
4f13da56 BP |
840 | /* Returns a bitmap of OpenFlow versions that are supported by at |
841 | * least one of the 'protocols'. */ | |
842 | uint32_t | |
843 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
844 | { | |
845 | uint32_t bitmap = 0; | |
846 | ||
847 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
848 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
849 | ||
850 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
851 | } | |
852 | ||
853 | return bitmap; | |
854 | } | |
855 | ||
856 | /* Returns the set of protocols that are supported on top of the | |
857 | * OpenFlow versions included in 'bitmap'. */ | |
858 | enum ofputil_protocol | |
859 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
860 | { | |
861 | enum ofputil_protocol protocols = 0; | |
862 | ||
863 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
864 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
865 | ||
866 | protocols |= ofputil_protocols_from_ofp_version(version); | |
867 | } | |
868 | ||
869 | return protocols; | |
870 | } | |
871 | ||
27527aa0 BP |
872 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
873 | * otherwise. */ | |
7fa91113 | 874 | bool |
27527aa0 | 875 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 876 | { |
27527aa0 BP |
877 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
878 | } | |
879 | ||
880 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
881 | * extension turned on or off if 'enable' is true or false, respectively. | |
882 | * | |
883 | * This extension is only useful for protocols whose "standard" version does | |
884 | * not allow specific tables to be modified. In particular, this is true of | |
885 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
886 | * specifies a table ID and so there is no need for such an extension. When | |
887 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
888 | * extension, this function just returns its 'protocol' argument unchanged | |
889 | * regardless of the value of 'enable'. */ | |
890 | enum ofputil_protocol | |
891 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
892 | { | |
893 | switch (protocol) { | |
85813857 BP |
894 | case OFPUTIL_P_OF10_STD: |
895 | case OFPUTIL_P_OF10_STD_TID: | |
896 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 897 | |
85813857 BP |
898 | case OFPUTIL_P_OF10_NXM: |
899 | case OFPUTIL_P_OF10_NXM_TID: | |
900 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 901 | |
75fa58f8 BP |
902 | case OFPUTIL_P_OF11_STD: |
903 | return OFPUTIL_P_OF11_STD; | |
904 | ||
85813857 BP |
905 | case OFPUTIL_P_OF12_OXM: |
906 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 907 | |
2e1ae200 JR |
908 | case OFPUTIL_P_OF13_OXM: |
909 | return OFPUTIL_P_OF13_OXM; | |
910 | ||
c37c0382 AC |
911 | case OFPUTIL_P_OF14_OXM: |
912 | return OFPUTIL_P_OF14_OXM; | |
913 | ||
42dccab5 BP |
914 | case OFPUTIL_P_OF15_OXM: |
915 | return OFPUTIL_P_OF15_OXM; | |
916 | ||
27527aa0 | 917 | default: |
428b2edd | 918 | OVS_NOT_REACHED(); |
7fa91113 | 919 | } |
27527aa0 | 920 | } |
7fa91113 | 921 | |
27527aa0 BP |
922 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
923 | * some extension to a standard protocol version, the return value is the | |
924 | * standard version of that protocol without any extension. If 'protocol' is a | |
925 | * standard protocol version, returns 'protocol' unchanged. */ | |
926 | enum ofputil_protocol | |
927 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
928 | { | |
929 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
930 | } |
931 | ||
27527aa0 BP |
932 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
933 | enum ofputil_protocol | |
934 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
935 | enum ofputil_protocol new_base) | |
7fa91113 | 936 | { |
27527aa0 BP |
937 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
938 | ||
939 | switch (new_base) { | |
85813857 BP |
940 | case OFPUTIL_P_OF10_STD: |
941 | case OFPUTIL_P_OF10_STD_TID: | |
942 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 943 | |
85813857 BP |
944 | case OFPUTIL_P_OF10_NXM: |
945 | case OFPUTIL_P_OF10_NXM_TID: | |
946 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 947 | |
75fa58f8 BP |
948 | case OFPUTIL_P_OF11_STD: |
949 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
950 | ||
85813857 BP |
951 | case OFPUTIL_P_OF12_OXM: |
952 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 953 | |
2e1ae200 JR |
954 | case OFPUTIL_P_OF13_OXM: |
955 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
956 | ||
c37c0382 AC |
957 | case OFPUTIL_P_OF14_OXM: |
958 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
959 | ||
42dccab5 BP |
960 | case OFPUTIL_P_OF15_OXM: |
961 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
962 | ||
7fa91113 | 963 | default: |
428b2edd | 964 | OVS_NOT_REACHED(); |
7fa91113 BP |
965 | } |
966 | } | |
967 | ||
27527aa0 BP |
968 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
969 | * 'protocol' is either a single protocol or it is a combination of protocols | |
970 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
971 | const char * | |
972 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 973 | { |
27527aa0 BP |
974 | const struct proto_abbrev *p; |
975 | ||
976 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
977 | * warning if we forget any. */ | |
978 | switch (protocol) { | |
85813857 | 979 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
980 | return "NXM-table_id"; |
981 | ||
85813857 | 982 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
983 | return "NXM+table_id"; |
984 | ||
85813857 | 985 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
986 | return "OpenFlow10-table_id"; |
987 | ||
85813857 | 988 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 989 | return "OpenFlow10+table_id"; |
44d3732d | 990 | |
75fa58f8 BP |
991 | case OFPUTIL_P_OF11_STD: |
992 | return "OpenFlow11"; | |
993 | ||
85813857 | 994 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 995 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
996 | |
997 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 998 | return "OXM-OpenFlow13"; |
c37c0382 AC |
999 | |
1000 | case OFPUTIL_P_OF14_OXM: | |
1001 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
1002 | |
1003 | case OFPUTIL_P_OF15_OXM: | |
1004 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
1005 | } |
1006 | ||
1007 | /* Check abbreviations. */ | |
1008 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1009 | if (protocol == p->protocol) { | |
1010 | return p->name; | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | return NULL; | |
1015 | } | |
1016 | ||
1017 | /* Returns a string that represents 'protocols'. The return value might be a | |
1018 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
1019 | * value is "none" if 'protocols' is 0. | |
1020 | * | |
1021 | * The caller must free the returned string (with free()). */ | |
1022 | char * | |
1023 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
1024 | { | |
1025 | struct ds s; | |
1026 | ||
cb22974d | 1027 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
1028 | if (protocols == 0) { |
1029 | return xstrdup("none"); | |
1030 | } | |
1031 | ||
1032 | ds_init(&s); | |
1033 | while (protocols) { | |
1034 | const struct proto_abbrev *p; | |
1035 | int i; | |
1036 | ||
1037 | if (s.length) { | |
1038 | ds_put_char(&s, ','); | |
1039 | } | |
1040 | ||
1041 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1042 | if ((protocols & p->protocol) == p->protocol) { | |
1043 | ds_put_cstr(&s, p->name); | |
1044 | protocols &= ~p->protocol; | |
1045 | goto match; | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1050 | enum ofputil_protocol bit = 1u << i; | |
1051 | ||
1052 | if (protocols & bit) { | |
1053 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1054 | protocols &= ~bit; | |
1055 | goto match; | |
1056 | } | |
1057 | } | |
428b2edd | 1058 | OVS_NOT_REACHED(); |
27527aa0 BP |
1059 | |
1060 | match: ; | |
1061 | } | |
1062 | return ds_steal_cstr(&s); | |
1063 | } | |
1064 | ||
1065 | static enum ofputil_protocol | |
1066 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1067 | { | |
1068 | const struct proto_abbrev *p; | |
1069 | int i; | |
1070 | ||
1071 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1072 | enum ofputil_protocol bit = 1u << i; | |
1073 | const char *name = ofputil_protocol_to_string(bit); | |
1074 | ||
1075 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1076 | return bit; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1081 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1082 | return p->protocol; | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
1089 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1090 | * single protocol name or abbreviation or a comma-separated list of them. | |
1091 | * | |
1092 | * Aborts the program with an error message if 's' is invalid. */ | |
1093 | enum ofputil_protocol | |
1094 | ofputil_protocols_from_string(const char *s) | |
1095 | { | |
1096 | const char *orig_s = s; | |
1097 | enum ofputil_protocol protocols; | |
1098 | ||
1099 | protocols = 0; | |
1100 | while (*s) { | |
1101 | enum ofputil_protocol p; | |
1102 | size_t n; | |
1103 | ||
1104 | n = strcspn(s, ","); | |
1105 | if (n == 0) { | |
1106 | s++; | |
1107 | continue; | |
1108 | } | |
1109 | ||
1110 | p = ofputil_protocol_from_string__(s, n); | |
1111 | if (!p) { | |
1112 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1113 | } | |
1114 | protocols |= p; | |
1115 | ||
1116 | s += n; | |
1117 | } | |
1118 | ||
1119 | if (!protocols) { | |
1120 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1121 | } | |
1122 | return protocols; | |
88ca35ee BP |
1123 | } |
1124 | ||
9d84066c | 1125 | enum ofp_version |
03e1125c SH |
1126 | ofputil_version_from_string(const char *s) |
1127 | { | |
1128 | if (!strcasecmp(s, "OpenFlow10")) { | |
1129 | return OFP10_VERSION; | |
1130 | } | |
1131 | if (!strcasecmp(s, "OpenFlow11")) { | |
1132 | return OFP11_VERSION; | |
1133 | } | |
1134 | if (!strcasecmp(s, "OpenFlow12")) { | |
1135 | return OFP12_VERSION; | |
1136 | } | |
2e1ae200 JR |
1137 | if (!strcasecmp(s, "OpenFlow13")) { |
1138 | return OFP13_VERSION; | |
1139 | } | |
c37c0382 AC |
1140 | if (!strcasecmp(s, "OpenFlow14")) { |
1141 | return OFP14_VERSION; | |
1142 | } | |
42dccab5 BP |
1143 | if (!strcasecmp(s, "OpenFlow15")) { |
1144 | return OFP15_VERSION; | |
1145 | } | |
7beaa082 | 1146 | return 0; |
03e1125c SH |
1147 | } |
1148 | ||
1149 | static bool | |
e091ef84 | 1150 | is_delimiter(unsigned char c) |
03e1125c SH |
1151 | { |
1152 | return isspace(c) || c == ','; | |
1153 | } | |
1154 | ||
1155 | uint32_t | |
1156 | ofputil_versions_from_string(const char *s) | |
1157 | { | |
1158 | size_t i = 0; | |
1159 | uint32_t bitmap = 0; | |
1160 | ||
1161 | while (s[i]) { | |
1162 | size_t j; | |
7beaa082 | 1163 | int version; |
03e1125c SH |
1164 | char *key; |
1165 | ||
1166 | if (is_delimiter(s[i])) { | |
1167 | i++; | |
1168 | continue; | |
1169 | } | |
1170 | j = 0; | |
1171 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1172 | j++; | |
1173 | } | |
1174 | key = xmemdup0(s + i, j); | |
1175 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1176 | if (!version) { |
1177 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1178 | } | |
03e1125c SH |
1179 | free(key); |
1180 | bitmap |= 1u << version; | |
1181 | i += j; | |
1182 | } | |
1183 | ||
1184 | return bitmap; | |
1185 | } | |
1186 | ||
7beaa082 SH |
1187 | uint32_t |
1188 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1189 | { | |
1190 | uint32_t bitmap = 0; | |
1191 | ||
1192 | while (count--) { | |
1193 | int version = ofputil_version_from_string(s[count]); | |
1194 | if (!version) { | |
1195 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1196 | } else { | |
1197 | bitmap |= 1u << version; | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | return bitmap; | |
1202 | } | |
1203 | ||
03e1125c SH |
1204 | const char * |
1205 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1206 | { | |
1207 | switch (ofp_version) { | |
1208 | case OFP10_VERSION: | |
1209 | return "OpenFlow10"; | |
1210 | case OFP11_VERSION: | |
1211 | return "OpenFlow11"; | |
1212 | case OFP12_VERSION: | |
1213 | return "OpenFlow12"; | |
2e1ae200 JR |
1214 | case OFP13_VERSION: |
1215 | return "OpenFlow13"; | |
c37c0382 AC |
1216 | case OFP14_VERSION: |
1217 | return "OpenFlow14"; | |
42dccab5 BP |
1218 | case OFP15_VERSION: |
1219 | return "OpenFlow15"; | |
03e1125c | 1220 | default: |
428b2edd | 1221 | OVS_NOT_REACHED(); |
03e1125c SH |
1222 | } |
1223 | } | |
1224 | ||
54834960 EJ |
1225 | bool |
1226 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1227 | { | |
1228 | switch (packet_in_format) { | |
1229 | case NXPIF_OPENFLOW10: | |
1230 | case NXPIF_NXM: | |
1231 | return true; | |
1232 | } | |
1233 | ||
1234 | return false; | |
1235 | } | |
1236 | ||
1237 | const char * | |
1238 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1239 | { | |
1240 | switch (packet_in_format) { | |
1241 | case NXPIF_OPENFLOW10: | |
1242 | return "openflow10"; | |
1243 | case NXPIF_NXM: | |
1244 | return "nxm"; | |
1245 | default: | |
428b2edd | 1246 | OVS_NOT_REACHED(); |
54834960 EJ |
1247 | } |
1248 | } | |
1249 | ||
1250 | int | |
1251 | ofputil_packet_in_format_from_string(const char *s) | |
1252 | { | |
1253 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1254 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1255 | : -1); | |
1256 | } | |
1257 | ||
03e1125c SH |
1258 | void |
1259 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1260 | { | |
8989046d | 1261 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1262 | } |
1263 | ||
1264 | void | |
1265 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1266 | { | |
1267 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1268 | } | |
1269 | ||
1270 | static void | |
1271 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1272 | void (*format_version)(struct ds *msg, | |
1273 | enum ofp_version)) | |
1274 | { | |
1275 | while (bitmap) { | |
1276 | format_version(msg, raw_ctz(bitmap)); | |
1277 | bitmap = zero_rightmost_1bit(bitmap); | |
1278 | if (bitmap) { | |
1279 | ds_put_cstr(msg, ", "); | |
1280 | } | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | void | |
1285 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1286 | { | |
1287 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1288 | } | |
1289 | ||
1290 | void | |
1291 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1292 | { | |
1293 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1294 | } | |
1295 | ||
de6c85b0 SH |
1296 | static bool |
1297 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1298 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1299 | { |
1300 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1301 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1302 | uint32_t allowed_versions; |
de6c85b0 SH |
1303 | |
1304 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1305 | return false; | |
1306 | } | |
1307 | ||
1308 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1309 | * current implementation supports. Subsequent elements are ignored which | |
1310 | * should have no effect on session negotiation until Open vSwtich supports | |
1311 | * wire-protocol versions greater than 31. | |
1312 | */ | |
0935de41 | 1313 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1314 | |
0935de41 | 1315 | if (allowed_versions & 1) { |
de6c85b0 SH |
1316 | /* There's no OpenFlow version 0. */ |
1317 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1318 | "version 0x00"); | |
0935de41 | 1319 | allowed_versions &= ~1u; |
de6c85b0 SH |
1320 | } |
1321 | ||
0935de41 | 1322 | if (!allowed_versions) { |
de6c85b0 SH |
1323 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1324 | "version (between 0x01 and 0x1f)"); | |
1325 | return false; | |
1326 | } | |
1327 | ||
0935de41 | 1328 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1329 | return true; |
1330 | } | |
1331 | ||
1332 | static uint32_t | |
1333 | version_bitmap_from_version(uint8_t ofp_version) | |
1334 | { | |
1335 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1336 | } | |
1337 | ||
1338 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1339 | * the set of OpenFlow versions for which 'oh' announces support. | |
1340 | * | |
1341 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1342 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1343 | * returns false if 'oh' contains some data that could not be fully understood, | |
1344 | * true if 'oh' was completely parsed. */ | |
1345 | bool | |
1346 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1347 | { | |
1348 | struct ofpbuf msg; | |
1349 | bool ok = true; | |
1350 | ||
1351 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1352 | ofpbuf_pull(&msg, sizeof *oh); | |
1353 | ||
1354 | *allowed_versions = version_bitmap_from_version(oh->version); | |
1f317cb5 | 1355 | while (ofpbuf_size(&msg)) { |
de6c85b0 SH |
1356 | const struct ofp_hello_elem_header *oheh; |
1357 | unsigned int len; | |
1358 | ||
1f317cb5 | 1359 | if (ofpbuf_size(&msg) < sizeof *oheh) { |
de6c85b0 SH |
1360 | return false; |
1361 | } | |
1362 | ||
1f317cb5 | 1363 | oheh = ofpbuf_data(&msg); |
de6c85b0 SH |
1364 | len = ntohs(oheh->length); |
1365 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1366 | return false; | |
1367 | } | |
1368 | ||
1369 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1370 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1371 | ok = false; | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | return ok; | |
1376 | } | |
1377 | ||
1378 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1379 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1380 | static bool |
de6c85b0 SH |
1381 | should_send_version_bitmap(uint32_t allowed_versions) |
1382 | { | |
1383 | return !is_pow2((allowed_versions >> 1) + 1); | |
1384 | } | |
1385 | ||
1386 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1387 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1388 | struct ofpbuf * | |
1389 | ofputil_encode_hello(uint32_t allowed_versions) | |
1390 | { | |
1391 | enum ofp_version ofp_version; | |
1392 | struct ofpbuf *msg; | |
1393 | ||
1394 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1395 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1396 | ||
1397 | if (should_send_version_bitmap(allowed_versions)) { | |
1398 | struct ofp_hello_elem_header *oheh; | |
1399 | uint16_t map_len; | |
1400 | ||
74c4b9c1 | 1401 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1402 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1403 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1404 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1405 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1406 | |
1407 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1408 | } |
1409 | ||
1410 | return msg; | |
1411 | } | |
1412 | ||
27527aa0 BP |
1413 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1414 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1415 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1416 | * connection if the switch processes the returned message correctly. (If | |
1417 | * '*next != want' then the caller will have to iterate.) | |
1418 | * | |
e43928f2 BP |
1419 | * If 'current == want', or if it is not possible to transition from 'current' |
1420 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1421 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1422 | struct ofpbuf * |
1423 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1424 | enum ofputil_protocol want, | |
1425 | enum ofputil_protocol *next) | |
1426 | { | |
e43928f2 | 1427 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1428 | enum ofputil_protocol cur_base, want_base; |
1429 | bool cur_tid, want_tid; | |
1430 | ||
e43928f2 BP |
1431 | cur_version = ofputil_protocol_to_ofp_version(current); |
1432 | want_version = ofputil_protocol_to_ofp_version(want); | |
1433 | if (cur_version != want_version) { | |
1434 | *next = current; | |
1435 | return NULL; | |
1436 | } | |
1437 | ||
27527aa0 BP |
1438 | cur_base = ofputil_protocol_to_base(current); |
1439 | want_base = ofputil_protocol_to_base(want); | |
1440 | if (cur_base != want_base) { | |
1441 | *next = ofputil_protocol_set_base(current, want_base); | |
1442 | ||
1443 | switch (want_base) { | |
85813857 | 1444 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1445 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1446 | ||
85813857 | 1447 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1448 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1449 | ||
75fa58f8 | 1450 | case OFPUTIL_P_OF11_STD: |
85813857 | 1451 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1452 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1453 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1454 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1455 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1456 | * verified above that we're not trying to change versions. */ |
428b2edd | 1457 | OVS_NOT_REACHED(); |
44d3732d | 1458 | |
85813857 BP |
1459 | case OFPUTIL_P_OF10_STD_TID: |
1460 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1461 | OVS_NOT_REACHED(); |
27527aa0 BP |
1462 | } |
1463 | } | |
1464 | ||
1465 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1466 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1467 | if (cur_tid != want_tid) { | |
1468 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1469 | return ofputil_make_flow_mod_table_id(want_tid); | |
1470 | } | |
1471 | ||
cb22974d | 1472 | ovs_assert(current == want); |
27527aa0 BP |
1473 | |
1474 | *next = current; | |
1475 | return NULL; | |
88ca35ee BP |
1476 | } |
1477 | ||
27527aa0 BP |
1478 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1479 | * format to 'nxff'. */ | |
88ca35ee | 1480 | struct ofpbuf * |
27527aa0 | 1481 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1482 | { |
73dbf4ab | 1483 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1484 | struct ofpbuf *msg; |
1485 | ||
cb22974d | 1486 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1487 | |
982697a4 BP |
1488 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1489 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1490 | sff->format = htonl(nxff); |
88ca35ee BP |
1491 | |
1492 | return msg; | |
1493 | } | |
1494 | ||
27527aa0 BP |
1495 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1496 | * otherwise. */ | |
1497 | enum ofputil_protocol | |
1498 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1499 | { | |
1500 | switch (flow_format) { | |
1501 | case NXFF_OPENFLOW10: | |
85813857 | 1502 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1503 | |
1504 | case NXFF_NXM: | |
85813857 | 1505 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1506 | |
1507 | default: | |
1508 | return 0; | |
1509 | } | |
1510 | } | |
1511 | ||
1512 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1513 | bool | |
1514 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1515 | { | |
1516 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1517 | } | |
1518 | ||
1519 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1520 | * value. */ | |
1521 | const char * | |
1522 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1523 | { | |
1524 | switch (flow_format) { | |
1525 | case NXFF_OPENFLOW10: | |
1526 | return "openflow10"; | |
1527 | case NXFF_NXM: | |
1528 | return "nxm"; | |
1529 | default: | |
428b2edd | 1530 | OVS_NOT_REACHED(); |
27527aa0 BP |
1531 | } |
1532 | } | |
1533 | ||
54834960 | 1534 | struct ofpbuf * |
3f4a1939 SH |
1535 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1536 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1537 | { |
73dbf4ab | 1538 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1539 | struct ofpbuf *msg; |
1540 | ||
3f4a1939 | 1541 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1542 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1543 | spif->format = htonl(packet_in_format); |
1544 | ||
1545 | return msg; | |
1546 | } | |
1547 | ||
6c1491fb BP |
1548 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1549 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1550 | struct ofpbuf * | |
1551 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1552 | { | |
73dbf4ab | 1553 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1554 | struct ofpbuf *msg; |
1555 | ||
982697a4 BP |
1556 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1557 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1558 | nfmti->set = flow_mod_table_id; |
1559 | return msg; | |
1560 | } | |
1561 | ||
0fb88c18 BP |
1562 | struct ofputil_flow_mod_flag { |
1563 | uint16_t raw_flag; | |
1564 | enum ofp_version min_version, max_version; | |
1565 | enum ofputil_flow_mod_flags flag; | |
1566 | }; | |
1567 | ||
1568 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1569 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1570 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1571 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1572 | OFPUTIL_FF_EMERG }, | |
1573 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1574 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1575 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1576 | { 0, 0, 0, 0 }, | |
1577 | }; | |
1578 | ||
1579 | static enum ofperr | |
1580 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1581 | enum ofp_flow_mod_command command, | |
1582 | enum ofp_version version, | |
1583 | enum ofputil_flow_mod_flags *flagsp) | |
1584 | { | |
1585 | uint16_t raw_flags = ntohs(raw_flags_); | |
1586 | const struct ofputil_flow_mod_flag *f; | |
1587 | ||
1588 | *flagsp = 0; | |
1589 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1590 | if (raw_flags & f->raw_flag | |
1591 | && version >= f->min_version | |
1592 | && (!f->max_version || version <= f->max_version)) { | |
1593 | raw_flags &= ~f->raw_flag; | |
1594 | *flagsp |= f->flag; | |
1595 | } | |
1596 | } | |
1597 | ||
1598 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1599 | * never do. | |
1600 | * | |
1601 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1602 | * resets counters. */ | |
1603 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1604 | && command == OFPFC_ADD) { | |
1605 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1606 | } | |
1607 | ||
1608 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1609 | } | |
1610 | ||
1611 | static ovs_be16 | |
1612 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1613 | enum ofp_version version) | |
1614 | { | |
1615 | const struct ofputil_flow_mod_flag *f; | |
1616 | uint16_t raw_flags; | |
1617 | ||
1618 | raw_flags = 0; | |
1619 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1620 | if (f->flag & flags | |
1621 | && version >= f->min_version | |
1622 | && (!f->max_version || version <= f->max_version)) { | |
1623 | raw_flags |= f->raw_flag; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | return htons(raw_flags); | |
1628 | } | |
1629 | ||
7fa91113 BP |
1630 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1631 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1632 | * code. | |
1633 | * | |
f25d0cf3 BP |
1634 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1635 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1636 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1637 | * | |
1638 | * Does not validate the flow_mod actions. The caller should do that, with | |
1639 | * ofpacts_check(). */ | |
90bf1e07 | 1640 | enum ofperr |
a9a2da38 | 1641 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1642 | const struct ofp_header *oh, |
f25d0cf3 | 1643 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1644 | struct ofpbuf *ofpacts, |
1645 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1646 | { |
0fb88c18 BP |
1647 | ovs_be16 raw_flags; |
1648 | enum ofperr error; | |
2e4f5fcf | 1649 | struct ofpbuf b; |
982697a4 | 1650 | enum ofpraw raw; |
2e4f5fcf | 1651 | |
cc40d06b SH |
1652 | /* Ignored for non-delete actions */ |
1653 | fm->delete_reason = OFPRR_DELETE; | |
1654 | ||
2013493b | 1655 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1656 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1657 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1658 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1659 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1660 | |
bbc32a88 | 1661 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1662 | |
81a76618 | 1663 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1664 | if (error) { |
1665 | return error; | |
1c0b7503 BP |
1666 | } |
1667 | ||
2e4f5fcf | 1668 | /* Translate the message. */ |
81a76618 | 1669 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1670 | if (ofm->command == OFPFC_ADD |
1671 | || (oh->version == OFP11_VERSION | |
1672 | && (ofm->command == OFPFC_MODIFY || | |
1673 | ofm->command == OFPFC_MODIFY_STRICT) | |
1674 | && ofm->cookie_mask == htonll(0))) { | |
1675 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1676 | * not match on the cookie is treated as an "add" if there is no | |
1677 | * match. */ | |
aa319503 BP |
1678 | fm->cookie = htonll(0); |
1679 | fm->cookie_mask = htonll(0); | |
1680 | fm->new_cookie = ofm->cookie; | |
1681 | } else { | |
aa319503 BP |
1682 | fm->cookie = ofm->cookie; |
1683 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1684 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1685 | } |
23342857 | 1686 | fm->modify_cookie = false; |
aa319503 | 1687 | fm->command = ofm->command; |
0e197060 BP |
1688 | |
1689 | /* Get table ID. | |
1690 | * | |
083761ad SH |
1691 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1692 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1693 | fm->table_id = ofm->table_id; |
083761ad | 1694 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1695 | && (oh->version == OFP11_VERSION |
1696 | || (ofm->command != OFPFC_DELETE && | |
1697 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1698 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1699 | } | |
1700 | ||
2e4f5fcf BP |
1701 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1702 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1703 | fm->buffer_id = ntohl(ofm->buffer_id); | |
aa319503 | 1704 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1705 | if (error) { |
1706 | return error; | |
1707 | } | |
7395c052 | 1708 | |
1fe4c0a0 BP |
1709 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1710 | ofm->command == OFPFC_DELETE_STRICT | |
1711 | ? ntohl(ofm->out_group) | |
1712 | : OFPG11_ANY); | |
0fb88c18 | 1713 | raw_flags = ofm->flags; |
aa319503 | 1714 | } else { |
0fb88c18 BP |
1715 | uint16_t command; |
1716 | ||
aa319503 BP |
1717 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1718 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1719 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1720 | |
1721 | /* Get the ofp10_flow_mod. */ | |
1722 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1723 | ||
aa319503 | 1724 | /* Translate the rule. */ |
81a76618 BP |
1725 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1726 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1727 | |
81a76618 BP |
1728 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1729 | * highest possible priority. */ | |
1730 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1731 | ? ntohs(ofm->priority) | |
1732 | : UINT16_MAX); | |
1733 | ||
aa319503 BP |
1734 | /* Translate the message. */ |
1735 | command = ntohs(ofm->command); | |
1736 | fm->cookie = htonll(0); | |
1737 | fm->cookie_mask = htonll(0); | |
1738 | fm->new_cookie = ofm->cookie; | |
1739 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1740 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
1741 | fm->buffer_id = ntohl(ofm->buffer_id); | |
4e022ec0 | 1742 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
7395c052 | 1743 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1744 | raw_flags = ofm->flags; |
aa319503 BP |
1745 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1746 | /* Nicira extended flow_mod. */ | |
1747 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1748 | |
1749 | /* Dissect the message. */ | |
1750 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1751 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1752 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1753 | if (error) { |
1754 | return error; | |
1755 | } | |
aa319503 BP |
1756 | |
1757 | /* Translate the message. */ | |
1758 | command = ntohs(nfm->command); | |
1759 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1760 | /* Flow additions may only set a new cookie, not match an | |
1761 | * existing cookie. */ | |
1762 | return OFPERR_NXBRC_NXM_INVALID; | |
1763 | } | |
81a76618 | 1764 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1765 | fm->new_cookie = nfm->cookie; |
1766 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1767 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
1768 | fm->buffer_id = ntohl(nfm->buffer_id); | |
4e022ec0 | 1769 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
7395c052 | 1770 | fm->out_group = OFPG11_ANY; |
0fb88c18 | 1771 | raw_flags = nfm->flags; |
aa319503 | 1772 | } else { |
428b2edd | 1773 | OVS_NOT_REACHED(); |
aa319503 BP |
1774 | } |
1775 | ||
b8266395 | 1776 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1777 | if (protocol & OFPUTIL_P_TID) { |
1778 | fm->command = command & 0xff; | |
1779 | fm->table_id = command >> 8; | |
1780 | } else { | |
1781 | fm->command = command; | |
1782 | fm->table_id = 0xff; | |
e729e793 | 1783 | } |
2e4f5fcf BP |
1784 | } |
1785 | ||
8f2cded4 BP |
1786 | error = ofpacts_pull_openflow_instructions(&b, ofpbuf_size(&b), |
1787 | oh->version, ofpacts); | |
1788 | if (error) { | |
1789 | return error; | |
1790 | } | |
1f317cb5 PS |
1791 | fm->ofpacts = ofpbuf_data(ofpacts); |
1792 | fm->ofpacts_len = ofpbuf_size(ofpacts); | |
6c1491fb | 1793 | |
0fb88c18 BP |
1794 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1795 | oh->version, &fm->flags); | |
1796 | if (error) { | |
1797 | return error; | |
1798 | } | |
1799 | ||
1800 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1801 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1802 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1803 | * | |
1804 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1805 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1806 | * code, so just state that the flow table is full. */ | |
1807 | return (fm->hard_timeout || fm->idle_timeout | |
1808 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1809 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1810 | } | |
1811 | ||
ba2fe8e9 BP |
1812 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1813 | &fm->match.flow, max_port, | |
1814 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1815 | } |
1816 | ||
638a19b0 JR |
1817 | static enum ofperr |
1818 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1819 | struct ofpbuf *bands) | |
1820 | { | |
1821 | const struct ofp13_meter_band_header *ombh; | |
1822 | struct ofputil_meter_band *mb; | |
1823 | uint16_t n = 0; | |
1824 | ||
1825 | ombh = ofpbuf_try_pull(msg, len); | |
1826 | if (!ombh) { | |
1827 | return OFPERR_OFPBRC_BAD_LEN; | |
1828 | } | |
1829 | ||
1830 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1831 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1832 | /* All supported band types have the same length. */ |
638a19b0 JR |
1833 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1834 | return OFPERR_OFPBRC_BAD_LEN; | |
1835 | } | |
1836 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1837 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1838 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1839 | return OFPERR_OFPMMFC_BAD_BAND; | |
1840 | } | |
638a19b0 JR |
1841 | mb->rate = ntohl(ombh->rate); |
1842 | mb->burst_size = ntohl(ombh->burst_size); | |
1843 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1844 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1845 | n++; | |
1846 | len -= ombh_len; | |
db5a1019 AW |
1847 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1848 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1849 | } |
1850 | if (len) { | |
1851 | return OFPERR_OFPBRC_BAD_LEN; | |
1852 | } | |
1853 | *n_bands = n; | |
1854 | return 0; | |
1855 | } | |
1856 | ||
1857 | enum ofperr | |
1858 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1859 | struct ofputil_meter_mod *mm, | |
1860 | struct ofpbuf *bands) | |
1861 | { | |
1862 | const struct ofp13_meter_mod *omm; | |
1863 | struct ofpbuf b; | |
1864 | ||
1865 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1866 | ofpraw_pull_assert(&b); | |
1867 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1868 | ||
1869 | /* Translate the message. */ | |
1870 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1871 | if (mm->command != OFPMC13_ADD && |
1872 | mm->command != OFPMC13_MODIFY && | |
1873 | mm->command != OFPMC13_DELETE) { | |
1874 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1875 | } | |
638a19b0 JR |
1876 | mm->meter.meter_id = ntohl(omm->meter_id); |
1877 | ||
1878 | if (mm->command == OFPMC13_DELETE) { | |
1879 | mm->meter.flags = 0; | |
1880 | mm->meter.n_bands = 0; | |
1881 | mm->meter.bands = NULL; | |
1882 | } else { | |
1883 | enum ofperr error; | |
1884 | ||
1885 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1886 | if (mm->meter.flags & OFPMF13_KBPS && |
1887 | mm->meter.flags & OFPMF13_PKTPS) { | |
1888 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1889 | } | |
1f317cb5 | 1890 | mm->meter.bands = ofpbuf_data(bands); |
638a19b0 | 1891 | |
1f317cb5 | 1892 | error = ofputil_pull_bands(&b, ofpbuf_size(&b), &mm->meter.n_bands, bands); |
638a19b0 JR |
1893 | if (error) { |
1894 | return error; | |
1895 | } | |
1896 | } | |
1897 | return 0; | |
1898 | } | |
1899 | ||
1900 | void | |
1901 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1902 | { | |
1903 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1904 | *meter_id = ntohl(omr->meter_id); | |
1905 | } | |
1906 | ||
1907 | struct ofpbuf * | |
1908 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1909 | enum ofputil_meter_request_type type, | |
1910 | uint32_t meter_id) | |
1911 | { | |
1912 | struct ofpbuf *msg; | |
1913 | ||
1914 | enum ofpraw raw; | |
1915 | ||
1916 | switch (type) { | |
1917 | case OFPUTIL_METER_CONFIG: | |
1918 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1919 | break; | |
1920 | case OFPUTIL_METER_STATS: | |
1921 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1922 | break; | |
1923 | default: | |
1924 | case OFPUTIL_METER_FEATURES: | |
1925 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1926 | break; | |
1927 | } | |
1928 | ||
1929 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1930 | ||
1931 | if (type != OFPUTIL_METER_FEATURES) { | |
1932 | struct ofp13_meter_multipart_request *omr; | |
1933 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1934 | omr->meter_id = htonl(meter_id); | |
1935 | } | |
1936 | return msg; | |
1937 | } | |
1938 | ||
1939 | static void | |
1940 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1941 | struct ofpbuf *msg) | |
1942 | { | |
1943 | uint16_t n = 0; | |
1944 | ||
1945 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1946 | /* Currently all band types have same size. */ |
638a19b0 JR |
1947 | struct ofp13_meter_band_dscp_remark *ombh; |
1948 | size_t ombh_len = sizeof *ombh; | |
1949 | ||
1950 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1951 | ||
1952 | ombh->type = htons(mb->type); | |
1953 | ombh->len = htons(ombh_len); | |
1954 | ombh->rate = htonl(mb->rate); | |
1955 | ombh->burst_size = htonl(mb->burst_size); | |
1956 | ombh->prec_level = mb->prec_level; | |
1957 | ||
1958 | mb++; | |
1959 | } | |
1960 | } | |
1961 | ||
1962 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1963 | void | |
1964 | ofputil_append_meter_config(struct list *replies, | |
1965 | const struct ofputil_meter_config *mc) | |
1966 | { | |
1967 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
1f317cb5 | 1968 | size_t start_ofs = ofpbuf_size(msg); |
638a19b0 JR |
1969 | struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply); |
1970 | reply->flags = htons(mc->flags); | |
1971 | reply->meter_id = htonl(mc->meter_id); | |
1972 | ||
1973 | ofputil_put_bands(mc->n_bands, mc->bands, msg); | |
1974 | ||
1f317cb5 | 1975 | reply->length = htons(ofpbuf_size(msg) - start_ofs); |
638a19b0 JR |
1976 | |
1977 | ofpmp_postappend(replies, start_ofs); | |
1978 | } | |
1979 | ||
1980 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1981 | void | |
1982 | ofputil_append_meter_stats(struct list *replies, | |
1983 | const struct ofputil_meter_stats *ms) | |
1984 | { | |
1985 | struct ofp13_meter_stats *reply; | |
1986 | uint16_t n = 0; | |
1987 | uint16_t len; | |
1988 | ||
1989 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1990 | reply = ofpmp_append(replies, len); | |
1991 | ||
1992 | reply->meter_id = htonl(ms->meter_id); | |
1993 | reply->len = htons(len); | |
1994 | memset(reply->pad, 0, sizeof reply->pad); | |
1995 | reply->flow_count = htonl(ms->flow_count); | |
1996 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1997 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1998 | reply->duration_sec = htonl(ms->duration_sec); | |
1999 | reply->duration_nsec = htonl(ms->duration_nsec); | |
2000 | ||
2001 | for (n = 0; n < ms->n_bands; ++n) { | |
2002 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
2003 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
2004 | ||
2005 | dst->packet_band_count = htonll(src->packet_count); | |
2006 | dst->byte_band_count = htonll(src->byte_count); | |
2007 | } | |
2008 | } | |
2009 | ||
2010 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
2011 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
2012 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
2013 | * it across the call. | |
2014 | * | |
2015 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
2016 | * message. Calling this function multiple times for a single 'msg' iterates | |
2017 | * through the replies. 'bands' is cleared for each reply. | |
2018 | * | |
2019 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2020 | * otherwise a positive errno value. */ | |
2021 | int | |
2022 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
2023 | struct ofputil_meter_config *mc, | |
2024 | struct ofpbuf *bands) | |
2025 | { | |
2026 | const struct ofp13_meter_config *omc; | |
2027 | enum ofperr err; | |
2028 | ||
2029 | /* Pull OpenFlow headers for the first call. */ | |
cf3b7538 | 2030 | if (!msg->frame) { |
638a19b0 JR |
2031 | ofpraw_pull_assert(msg); |
2032 | } | |
2033 | ||
1f317cb5 | 2034 | if (!ofpbuf_size(msg)) { |
638a19b0 JR |
2035 | return EOF; |
2036 | } | |
2037 | ||
2038 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2039 | if (!omc) { | |
0445637d | 2040 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2041 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 2042 | ofpbuf_size(msg)); |
638a19b0 JR |
2043 | return OFPERR_OFPBRC_BAD_LEN; |
2044 | } | |
2045 | ||
2046 | ofpbuf_clear(bands); | |
2047 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2048 | &mc->n_bands, bands); | |
2049 | if (err) { | |
2050 | return err; | |
2051 | } | |
2052 | mc->meter_id = ntohl(omc->meter_id); | |
2053 | mc->flags = ntohs(omc->flags); | |
1f317cb5 | 2054 | mc->bands = ofpbuf_data(bands); |
638a19b0 JR |
2055 | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | static enum ofperr | |
2060 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2061 | struct ofpbuf *bands) | |
2062 | { | |
2063 | const struct ofp13_meter_band_stats *ombs; | |
2064 | struct ofputil_meter_band_stats *mbs; | |
2065 | uint16_t n, i; | |
2066 | ||
0445637d JR |
2067 | ombs = ofpbuf_try_pull(msg, len); |
2068 | if (!ombs) { | |
2069 | return OFPERR_OFPBRC_BAD_LEN; | |
2070 | } | |
2071 | ||
638a19b0 JR |
2072 | n = len / sizeof *ombs; |
2073 | if (len != n * sizeof *ombs) { | |
2074 | return OFPERR_OFPBRC_BAD_LEN; | |
2075 | } | |
2076 | ||
638a19b0 JR |
2077 | mbs = ofpbuf_put_uninit(bands, len); |
2078 | ||
2079 | for (i = 0; i < n; ++i) { | |
2080 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2081 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2082 | } | |
2083 | *n_bands = n; | |
2084 | return 0; | |
2085 | } | |
2086 | ||
2087 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2088 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2089 | * decoded into 'bands'. | |
2090 | * | |
2091 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2092 | * message. Calling this function multiple times for a single 'msg' iterates | |
2093 | * through the replies. 'bands' is cleared for each reply. | |
2094 | * | |
2095 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2096 | * otherwise a positive errno value. */ | |
2097 | int | |
2098 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2099 | struct ofputil_meter_stats *ms, | |
2100 | struct ofpbuf *bands) | |
2101 | { | |
2102 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2103 | enum ofperr err; |
2104 | ||
2105 | /* Pull OpenFlow headers for the first call. */ | |
cf3b7538 | 2106 | if (!msg->frame) { |
638a19b0 JR |
2107 | ofpraw_pull_assert(msg); |
2108 | } | |
2109 | ||
1f317cb5 | 2110 | if (!ofpbuf_size(msg)) { |
638a19b0 JR |
2111 | return EOF; |
2112 | } | |
2113 | ||
2114 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2115 | if (!oms) { | |
0445637d | 2116 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2117 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 2118 | ofpbuf_size(msg)); |
638a19b0 JR |
2119 | return OFPERR_OFPBRC_BAD_LEN; |
2120 | } | |
638a19b0 JR |
2121 | |
2122 | ofpbuf_clear(bands); | |
0445637d JR |
2123 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2124 | &ms->n_bands, bands); | |
638a19b0 JR |
2125 | if (err) { |
2126 | return err; | |
2127 | } | |
2128 | ms->meter_id = ntohl(oms->meter_id); | |
2129 | ms->flow_count = ntohl(oms->flow_count); | |
2130 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2131 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2132 | ms->duration_sec = ntohl(oms->duration_sec); | |
2133 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
1f317cb5 | 2134 | ms->bands = ofpbuf_data(bands); |
638a19b0 JR |
2135 | |
2136 | return 0; | |
2137 | } | |
2138 | ||
2139 | void | |
2140 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2141 | struct ofputil_meter_features *mf) | |
2142 | { | |
2143 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2144 | ||
2145 | mf->max_meters = ntohl(omf->max_meter); | |
2146 | mf->band_types = ntohl(omf->band_types); | |
2147 | mf->capabilities = ntohl(omf->capabilities); | |
2148 | mf->max_bands = omf->max_bands; | |
2149 | mf->max_color = omf->max_color; | |
2150 | } | |
2151 | ||
2152 | struct ofpbuf * | |
2153 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2154 | const struct ofp_header *request) | |
2155 | { | |
2156 | struct ofpbuf *reply; | |
2157 | struct ofp13_meter_features *omf; | |
2158 | ||
2159 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2160 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2161 | ||
2162 | omf->max_meter = htonl(mf->max_meters); | |
2163 | omf->band_types = htonl(mf->band_types); | |
2164 | omf->capabilities = htonl(mf->capabilities); | |
2165 | omf->max_bands = mf->max_bands; | |
2166 | omf->max_color = mf->max_color; | |
2167 | ||
2168 | return reply; | |
2169 | } | |
2170 | ||
2171 | struct ofpbuf * | |
2172 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2173 | const struct ofputil_meter_mod *mm) | |
2174 | { | |
2175 | struct ofpbuf *msg; | |
2176 | ||
2177 | struct ofp13_meter_mod *omm; | |
2178 | ||
2179 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2180 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2181 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2182 | omm->command = htons(mm->command); | |
2183 | if (mm->command != OFPMC13_DELETE) { | |
2184 | omm->flags = htons(mm->meter.flags); | |
2185 | } | |
2186 | omm->meter_id = htonl(mm->meter.meter_id); | |
2187 | ||
2188 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2189 | ||
2190 | ofpmsg_update_length(msg); | |
2191 | return msg; | |
2192 | } | |
2193 | ||
aa6305ea SH |
2194 | static ovs_be16 |
2195 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2196 | enum ofputil_protocol protocol) | |
2197 | { | |
2198 | return htons(protocol & OFPUTIL_P_TID | |
2199 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2200 | : fm->command); | |
2201 | } | |
2202 | ||
2e4f5fcf | 2203 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2204 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2205 | struct ofpbuf * |
a9a2da38 | 2206 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2207 | enum ofputil_protocol protocol) |
2e4f5fcf | 2208 | { |
0fb88c18 BP |
2209 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2210 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2211 | struct ofpbuf *msg; |
2212 | ||
27527aa0 | 2213 | switch (protocol) { |
75fa58f8 | 2214 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2215 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2216 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2217 | case OFPUTIL_P_OF14_OXM: |
2218 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2219 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2220 | int tailroom; |
aa6305ea | 2221 | |
75fa58f8 | 2222 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2223 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2224 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2225 | if ((protocol == OFPUTIL_P_OF11_STD |
2226 | && (fm->command == OFPFC_MODIFY || | |
2227 | fm->command == OFPFC_MODIFY_STRICT) | |
2228 | && fm->cookie_mask == htonll(0)) | |
2229 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2230 | ofm->cookie = fm->new_cookie; |
2231 | } else { | |
ba5cc068 | 2232 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2233 | } |
aa6305ea | 2234 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2235 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2236 | || (protocol != OFPUTIL_P_OF11_STD |
2237 | && (fm->command == OFPFC_DELETE || | |
2238 | fm->command == OFPFC_DELETE_STRICT))) { | |
2239 | ofm->table_id = fm->table_id; | |
2240 | } else { | |
2241 | ofm->table_id = 0; | |
2242 | } | |
aa6305ea SH |
2243 | ofm->command = fm->command; |
2244 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2245 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2246 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2247 | ofm->buffer_id = htonl(fm->buffer_id); |
2248 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2249 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2250 | ofm->flags = raw_flags; |
75fa58f8 | 2251 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2252 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2253 | version); | |
aa6305ea SH |
2254 | break; |
2255 | } | |
2256 | ||
85813857 BP |
2257 | case OFPUTIL_P_OF10_STD: |
2258 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2259 | struct ofp10_flow_mod *ofm; |
2260 | ||
982697a4 BP |
2261 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2262 | fm->ofpacts_len); | |
2263 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2264 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2265 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2266 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2267 | ofm->idle_timeout = htons(fm->idle_timeout); |
2268 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2269 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2270 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2271 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2272 | ofm->flags = raw_flags; |
e3f8f887 JR |
2273 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2274 | version); | |
27527aa0 | 2275 | break; |
3f192f23 | 2276 | } |
2e4f5fcf | 2277 | |
85813857 BP |
2278 | case OFPUTIL_P_OF10_NXM: |
2279 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2280 | struct nx_flow_mod *nfm; |
2281 | int match_len; | |
2282 | ||
982697a4 BP |
2283 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2284 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2285 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2286 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2287 | nfm->cookie = fm->new_cookie; |
81a76618 | 2288 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6b8c377a | 2289 | nfm = ofpbuf_l3(msg); |
2e4f5fcf BP |
2290 | nfm->idle_timeout = htons(fm->idle_timeout); |
2291 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2292 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2293 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2294 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2295 | nfm->flags = raw_flags; |
2e4f5fcf | 2296 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2297 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2298 | version); | |
27527aa0 | 2299 | break; |
3f192f23 | 2300 | } |
27527aa0 BP |
2301 | |
2302 | default: | |
428b2edd | 2303 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2304 | } |
2305 | ||
982697a4 | 2306 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2307 | return msg; |
2308 | } | |
2309 | ||
90bf1e07 | 2310 | static enum ofperr |
0157ad3a SH |
2311 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2312 | const struct ofp10_flow_stats_request *ofsr, | |
2313 | bool aggregate) | |
2e4f5fcf | 2314 | { |
2e4f5fcf | 2315 | fsr->aggregate = aggregate; |
81a76618 | 2316 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2317 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
7395c052 | 2318 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf | 2319 | fsr->table_id = ofsr->table_id; |
e729e793 | 2320 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2321 | |
2322 | return 0; | |
2323 | } | |
2324 | ||
0157ad3a SH |
2325 | static enum ofperr |
2326 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2327 | struct ofpbuf *b, bool aggregate) | |
2328 | { | |
2329 | const struct ofp11_flow_stats_request *ofsr; | |
2330 | enum ofperr error; | |
2331 | ||
2332 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2333 | fsr->aggregate = aggregate; | |
2334 | fsr->table_id = ofsr->table_id; | |
2335 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2336 | if (error) { | |
2337 | return error; | |
2338 | } | |
7395c052 | 2339 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2340 | fsr->cookie = ofsr->cookie; |
2341 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2342 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2343 | if (error) { |
2344 | return error; | |
2345 | } | |
2346 | ||
2347 | return 0; | |
2348 | } | |
2349 | ||
90bf1e07 | 2350 | static enum ofperr |
81d1ea94 | 2351 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2352 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2353 | { |
2354 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2355 | enum ofperr error; |
2e4f5fcf | 2356 | |
982697a4 | 2357 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2358 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2359 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2360 | if (error) { |
2361 | return error; | |
2362 | } | |
1f317cb5 | 2363 | if (ofpbuf_size(b)) { |
90bf1e07 | 2364 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2365 | } |
2366 | ||
2367 | fsr->aggregate = aggregate; | |
4e022ec0 | 2368 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
7395c052 | 2369 | fsr->out_group = OFPG11_ANY; |
2e4f5fcf BP |
2370 | fsr->table_id = nfsr->table_id; |
2371 | ||
2372 | return 0; | |
2373 | } | |
2374 | ||
e8f9a7bb VG |
2375 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
2376 | * 'port', suitable for OpenFlow version 'version'. */ | |
2377 | struct ofpbuf * | |
2378 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
2379 | ofp_port_t port) | |
2380 | { | |
2381 | struct ofpbuf *request; | |
2382 | ||
2383 | if (version == OFP10_VERSION) { | |
2384 | struct ofp10_queue_get_config_request *qgcr10; | |
2385 | ||
2386 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2387 | version, 0); | |
2388 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2389 | qgcr10->port = htons(ofp_to_u16(port)); | |
2390 | } else { | |
2391 | struct ofp11_queue_get_config_request *qgcr11; | |
2392 | ||
2393 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2394 | version, 0); | |
2395 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2396 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2397 | } | |
2398 | ||
2399 | return request; | |
2400 | } | |
2401 | ||
2402 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2403 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2404 | * code. */ | |
2405 | enum ofperr | |
2406 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
2407 | ofp_port_t *port) | |
2408 | { | |
2409 | const struct ofp10_queue_get_config_request *qgcr10; | |
2410 | const struct ofp11_queue_get_config_request *qgcr11; | |
2411 | enum ofpraw raw; | |
2412 | struct ofpbuf b; | |
2413 | ||
2414 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2415 | raw = ofpraw_pull_assert(&b); | |
2416 | ||
2417 | switch ((int) raw) { | |
2418 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
1f317cb5 | 2419 | qgcr10 = ofpbuf_data(&b); |
e8f9a7bb VG |
2420 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
2421 | return 0; | |
2422 | ||
2423 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
1f317cb5 | 2424 | qgcr11 = ofpbuf_data(&b); |
e8f9a7bb VG |
2425 | return ofputil_port_from_ofp11(qgcr11->port, port); |
2426 | } | |
2427 | ||
428b2edd | 2428 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2429 | } |
2430 | ||
2431 | /* Constructs and returns the beginning of a reply to | |
2432 | * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about | |
2433 | * individual queues with ofputil_append_queue_get_config_reply(). */ | |
2434 | struct ofpbuf * | |
2435 | ofputil_encode_queue_get_config_reply(const struct ofp_header *oh) | |
2436 | { | |
2437 | struct ofp10_queue_get_config_reply *qgcr10; | |
2438 | struct ofp11_queue_get_config_reply *qgcr11; | |
2439 | struct ofpbuf *reply; | |
2440 | enum ofperr error; | |
2441 | struct ofpbuf b; | |
2442 | enum ofpraw raw; | |
2443 | ofp_port_t port; | |
2444 | ||
2445 | error = ofputil_decode_queue_get_config_request(oh, &port); | |
2446 | ovs_assert(!error); | |
2447 | ||
2448 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2449 | raw = ofpraw_pull_assert(&b); | |
2450 | ||
2451 | switch ((int) raw) { | |
2452 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2453 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
2454 | oh, 0); | |
2455 | qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
2456 | qgcr10->port = htons(ofp_to_u16(port)); | |
2457 | break; | |
2458 | ||
2459 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2460 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
2461 | oh, 0); | |
2462 | qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
2463 | qgcr11->port = ofputil_port_to_ofp11(port); | |
2464 | break; | |
2465 | ||
2466 | default: | |
428b2edd | 2467 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2468 | } |
2469 | ||
2470 | return reply; | |
2471 | } | |
2472 | ||
2473 | static void | |
2474 | put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property, | |
2475 | uint16_t rate) | |
2476 | { | |
2477 | if (rate != UINT16_MAX) { | |
2478 | struct ofp_queue_prop_rate *oqpr; | |
2479 | ||
2480 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2481 | oqpr->prop_header.property = htons(property); | |
2482 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2483 | oqpr->rate = htons(rate); | |
2484 | } | |
2485 | } | |
2486 | ||
2487 | /* Appends a queue description for 'queue_id' to the | |
2488 | * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */ | |
2489 | void | |
2490 | ofputil_append_queue_get_config_reply(struct ofpbuf *reply, | |
2491 | const struct ofputil_queue_config *oqc) | |
2492 | { | |
1f317cb5 | 2493 | const struct ofp_header *oh = ofpbuf_data(reply); |
e8f9a7bb VG |
2494 | size_t start_ofs, len_ofs; |
2495 | ovs_be16 *len; | |
2496 | ||
1f317cb5 | 2497 | start_ofs = ofpbuf_size(reply); |
e8f9a7bb VG |
2498 | if (oh->version < OFP12_VERSION) { |
2499 | struct ofp10_packet_queue *opq10; | |
2500 | ||
2501 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); | |
2502 | opq10->queue_id = htonl(oqc->queue_id); | |
1f317cb5 | 2503 | len_ofs = (char *) &opq10->len - (char *) ofpbuf_data(reply); |
e8f9a7bb VG |
2504 | } else { |
2505 | struct ofp11_queue_get_config_reply *qgcr11; | |
2506 | struct ofp12_packet_queue *opq12; | |
2507 | ovs_be32 port; | |
2508 | ||
6b8c377a | 2509 | qgcr11 = ofpbuf_l3(reply); |
e8f9a7bb VG |
2510 | port = qgcr11->port; |
2511 | ||
2512 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); | |
2513 | opq12->port = port; | |
2514 | opq12->queue_id = htonl(oqc->queue_id); | |
1f317cb5 | 2515 | len_ofs = (char *) &opq12->len - (char *) ofpbuf_data(reply); |
e8f9a7bb VG |
2516 | } |
2517 | ||
2518 | put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate); | |
2519 | put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate); | |
2520 | ||
2521 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
1f317cb5 | 2522 | *len = htons(ofpbuf_size(reply) - start_ofs); |
e8f9a7bb VG |
2523 | } |
2524 | ||
2525 | /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and | |
2526 | * stores in '*port' the port that the reply is about. The caller may call | |
2527 | * ofputil_pull_queue_get_config_reply() to obtain information about individual | |
2528 | * queues included in the reply. Returns 0 if successful, otherwise an | |
2529 | * ofperr.*/ | |
2530 | enum ofperr | |
2531 | ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port) | |
2532 | { | |
2533 | const struct ofp10_queue_get_config_reply *qgcr10; | |
2534 | const struct ofp11_queue_get_config_reply *qgcr11; | |
2535 | enum ofpraw raw; | |
2536 | ||
2537 | raw = ofpraw_pull_assert(reply); | |
2538 | switch ((int) raw) { | |
2539 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY: | |
2540 | qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10); | |
2541 | *port = u16_to_ofp(ntohs(qgcr10->port)); | |
2542 | return 0; | |
2543 | ||
2544 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY: | |
2545 | qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11); | |
2546 | return ofputil_port_from_ofp11(qgcr11->port, port); | |
2547 | } | |
2548 | ||
428b2edd | 2549 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2550 | } |
2551 | ||
2552 | static enum ofperr | |
2553 | parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate) | |
2554 | { | |
2555 | const struct ofp_queue_prop_rate *oqpr; | |
2556 | ||
2557 | if (hdr->len == htons(sizeof *oqpr)) { | |
2558 | oqpr = (const struct ofp_queue_prop_rate *) hdr; | |
2559 | *rate = ntohs(oqpr->rate); | |
2560 | return 0; | |
2561 | } else { | |
2562 | return OFPERR_OFPBRC_BAD_LEN; | |
2563 | } | |
2564 | } | |
2565 | ||
2566 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2567 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2568 | * must already have pulled off the main header. | |
2569 | * | |
2570 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2571 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2572 | * problem decoding 'reply'. */ | |
2573 | int | |
2574 | ofputil_pull_queue_get_config_reply(struct ofpbuf *reply, | |
2575 | struct ofputil_queue_config *queue) | |
2576 | { | |
2577 | const struct ofp_header *oh; | |
2578 | unsigned int opq_len; | |
2579 | unsigned int len; | |
2580 | ||
1f317cb5 | 2581 | if (!ofpbuf_size(reply)) { |
e8f9a7bb VG |
2582 | return EOF; |
2583 | } | |
2584 | ||
2585 | queue->min_rate = UINT16_MAX; | |
2586 | queue->max_rate = UINT16_MAX; | |
2587 | ||
cf3b7538 | 2588 | oh = reply->frame; |
e8f9a7bb VG |
2589 | if (oh->version < OFP12_VERSION) { |
2590 | const struct ofp10_packet_queue *opq10; | |
2591 | ||
2592 | opq10 = ofpbuf_try_pull(reply, sizeof *opq10); | |
2593 | if (!opq10) { | |
2594 | return OFPERR_OFPBRC_BAD_LEN; | |
2595 | } | |
2596 | queue->queue_id = ntohl(opq10->queue_id); | |
2597 | len = ntohs(opq10->len); | |
2598 | opq_len = sizeof *opq10; | |
2599 | } else { | |
2600 | const struct ofp12_packet_queue *opq12; | |
2601 | ||
2602 | opq12 = ofpbuf_try_pull(reply, sizeof *opq12); | |
2603 | if (!opq12) { | |
2604 | return OFPERR_OFPBRC_BAD_LEN; | |
2605 | } | |
2606 | queue->queue_id = ntohl(opq12->queue_id); | |
2607 | len = ntohs(opq12->len); | |
2608 | opq_len = sizeof *opq12; | |
2609 | } | |
2610 | ||
1f317cb5 | 2611 | if (len < opq_len || len > ofpbuf_size(reply) + opq_len || len % 8) { |
e8f9a7bb VG |
2612 | return OFPERR_OFPBRC_BAD_LEN; |
2613 | } | |
2614 | len -= opq_len; | |
2615 | ||
2616 | while (len > 0) { | |
2617 | const struct ofp_queue_prop_header *hdr; | |
2618 | unsigned int property; | |
2619 | unsigned int prop_len; | |
2620 | enum ofperr error = 0; | |
2621 | ||
2622 | hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr); | |
2623 | prop_len = ntohs(hdr->len); | |
1f317cb5 | 2624 | if (prop_len < sizeof *hdr || prop_len > ofpbuf_size(reply) || prop_len % 8) { |
e8f9a7bb VG |
2625 | return OFPERR_OFPBRC_BAD_LEN; |
2626 | } | |
2627 | ||
2628 | property = ntohs(hdr->property); | |
2629 | switch (property) { | |
2630 | case OFPQT_MIN_RATE: | |
2631 | error = parse_queue_rate(hdr, &queue->min_rate); | |
2632 | break; | |
2633 | ||
2634 | case OFPQT_MAX_RATE: | |
2635 | error = parse_queue_rate(hdr, &queue->max_rate); | |
2636 | break; | |
2637 | ||
2638 | default: | |
2639 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2640 | break; | |
2641 | } | |
2642 | if (error) { | |
2643 | return error; | |
2644 | } | |
2645 | ||
2646 | ofpbuf_pull(reply, prop_len); | |
2647 | len -= prop_len; | |
2648 | } | |
2649 | return 0; | |
2650 | } | |
2651 | ||
2e4f5fcf | 2652 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2653 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2654 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2655 | enum ofperr |
81d1ea94 | 2656 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2657 | const struct ofp_header *oh) |
2e4f5fcf | 2658 | { |
982697a4 | 2659 | enum ofpraw raw; |
2e4f5fcf | 2660 | struct ofpbuf b; |
2e4f5fcf | 2661 | |
2013493b | 2662 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2663 | raw = ofpraw_pull_assert(&b); |
2664 | switch ((int) raw) { | |
cfc23141 | 2665 | case OFPRAW_OFPST10_FLOW_REQUEST: |
1f317cb5 | 2666 | return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), false); |
2e4f5fcf | 2667 | |
617da9cd | 2668 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
1f317cb5 | 2669 | return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), true); |
0157ad3a SH |
2670 | |
2671 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2672 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2673 | |
617da9cd SH |
2674 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2675 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2676 | ||
982697a4 BP |
2677 | case OFPRAW_NXST_FLOW_REQUEST: |
2678 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2679 | |
982697a4 BP |
2680 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2681 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2682 | |
2683 | default: | |
2684 | /* Hey, the caller lied. */ | |
428b2edd | 2685 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2686 | } |
2687 | } | |
2688 | ||
2689 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2690 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2691 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2692 | struct ofpbuf * |
81d1ea94 | 2693 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2694 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2695 | { |
2696 | struct ofpbuf *msg; | |
982697a4 | 2697 | enum ofpraw raw; |
2e4f5fcf | 2698 | |
27527aa0 | 2699 | switch (protocol) { |
75fa58f8 | 2700 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2701 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2702 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2703 | case OFPUTIL_P_OF14_OXM: |
2704 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2705 | struct ofp11_flow_stats_request *ofsr; |
2706 | ||
2707 | raw = (fsr->aggregate | |
617da9cd | 2708 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2709 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2710 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2711 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2712 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2713 | ofsr->table_id = fsr->table_id; | |
2714 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2715 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2716 | ofsr->cookie = fsr->cookie; |
2717 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2718 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2719 | break; |
2720 | } | |
2721 | ||
85813857 BP |
2722 | case OFPUTIL_P_OF10_STD: |
2723 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2724 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2725 | |
982697a4 | 2726 | raw = (fsr->aggregate |
617da9cd | 2727 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2728 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2729 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2730 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2731 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2732 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2733 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2734 | break; |
2735 | } | |
2736 | ||
85813857 BP |
2737 | case OFPUTIL_P_OF10_NXM: |
2738 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2739 | struct nx_flow_stats_request *nfsr; |
2740 | int match_len; | |
2741 | ||
982697a4 BP |
2742 | raw = (fsr->aggregate |
2743 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2744 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2745 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2746 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2747 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2748 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2749 | |
6b8c377a | 2750 | nfsr = ofpbuf_l3(msg); |
4e022ec0 | 2751 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2752 | nfsr->match_len = htons(match_len); |
2753 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2754 | break; |
2755 | } | |
2756 | ||
2757 | default: | |
428b2edd | 2758 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2759 | } |
2760 | ||
2761 | return msg; | |
2762 | } | |
d1e2cf21 | 2763 | |
4ffd1b43 | 2764 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2765 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2766 | * |
2767 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2768 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2769 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2770 | * pointers null and not modify them between calls. | |
2771 | * | |
f27f2134 BP |
2772 | * Most switches don't send the values needed to populate fs->idle_age and |
2773 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2774 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2775 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2776 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2777 | * | |
f25d0cf3 BP |
2778 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2779 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2780 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2781 | * | |
4ffd1b43 BP |
2782 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2783 | * otherwise a positive errno value. */ | |
2784 | int | |
2785 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2786 | struct ofpbuf *msg, |
f25d0cf3 BP |
2787 | bool flow_age_extension, |
2788 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2789 | { |
0fb88c18 | 2790 | const struct ofp_header *oh; |
8f2cded4 | 2791 | size_t instructions_len; |
982697a4 BP |
2792 | enum ofperr error; |
2793 | enum ofpraw raw; | |
4ffd1b43 | 2794 | |
cf3b7538 JR |
2795 | error = (msg->frame |
2796 | ? ofpraw_decode(&raw, msg->frame) | |
982697a4 BP |
2797 | : ofpraw_pull(&raw, msg)); |
2798 | if (error) { | |
2799 | return error; | |
4ffd1b43 | 2800 | } |
cf3b7538 | 2801 | oh = msg->frame; |
4ffd1b43 | 2802 | |
1f317cb5 | 2803 | if (!ofpbuf_size(msg)) { |
4ffd1b43 | 2804 | return EOF; |
2e1ae200 JR |
2805 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2806 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2807 | const struct ofp11_flow_stats *ofs; |
2808 | size_t length; | |
2809 | uint16_t padded_match_len; | |
2810 | ||
2811 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2812 | if (!ofs) { | |
437d0d22 | 2813 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2814 | "bytes at end", ofpbuf_size(msg)); |
6ec5f0c5 SH |
2815 | return EINVAL; |
2816 | } | |
2817 | ||
2818 | length = ntohs(ofs->length); | |
2819 | if (length < sizeof *ofs) { | |
2820 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2821 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2822 | return EINVAL; |
2823 | } | |
2824 | ||
81a76618 | 2825 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2826 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2827 | return EINVAL; | |
2828 | } | |
8f2cded4 | 2829 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2830 | |
81a76618 | 2831 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2832 | fs->table_id = ofs->table_id; |
2833 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2834 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2835 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2836 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
0fb88c18 BP |
2837 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2838 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2839 | &fs->flags); | |
2840 | if (error) { | |
2841 | return error; | |
2842 | } | |
2843 | } else { | |
2844 | fs->flags = 0; | |
2845 | } | |
6ec5f0c5 SH |
2846 | fs->idle_age = -1; |
2847 | fs->hard_age = -1; | |
2848 | fs->cookie = ofs->cookie; | |
2849 | fs->packet_count = ntohll(ofs->packet_count); | |
2850 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2851 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2852 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2853 | size_t length; |
2854 | ||
2855 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2856 | if (!ofs) { | |
437d0d22 | 2857 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2858 | "bytes at end", ofpbuf_size(msg)); |
4ffd1b43 BP |
2859 | return EINVAL; |
2860 | } | |
2861 | ||
2862 | length = ntohs(ofs->length); | |
2863 | if (length < sizeof *ofs) { | |
2864 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2865 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2866 | return EINVAL; |
2867 | } | |
8f2cded4 | 2868 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2869 | |
2870 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2871 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2872 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2873 | fs->table_id = ofs->table_id; |
2874 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2875 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2876 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2877 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
f27f2134 BP |
2878 | fs->idle_age = -1; |
2879 | fs->hard_age = -1; | |
4ffd1b43 BP |
2880 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2881 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2882 | fs->flags = 0; |
982697a4 | 2883 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2884 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2885 | size_t match_len, length; |
4ffd1b43 BP |
2886 | |
2887 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2888 | if (!nfs) { | |
437d0d22 | 2889 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
1f317cb5 | 2890 | "bytes at end", ofpbuf_size(msg)); |
4ffd1b43 BP |
2891 | return EINVAL; |
2892 | } | |
2893 | ||
2894 | length = ntohs(nfs->length); | |
2895 | match_len = ntohs(nfs->match_len); | |
2896 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2897 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2898 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2899 | return EINVAL; |
2900 | } | |
81a76618 | 2901 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2902 | return EINVAL; |
2903 | } | |
8f2cded4 | 2904 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2905 | |
2906 | fs->cookie = nfs->cookie; | |
2907 | fs->table_id = nfs->table_id; | |
2908 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2909 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2910 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2911 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2912 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
f27f2134 BP |
2913 | fs->idle_age = -1; |
2914 | fs->hard_age = -1; | |
2915 | if (flow_age_extension) { | |
2916 | if (nfs->idle_age) { | |
2917 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2918 | } | |
2919 | if (nfs->hard_age) { | |
2920 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2921 | } | |
2922 | } | |
4ffd1b43 BP |
2923 | fs->packet_count = ntohll(nfs->packet_count); |
2924 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2925 | fs->flags = 0; |
4ffd1b43 | 2926 | } else { |
428b2edd | 2927 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2928 | } |
2929 | ||
8f2cded4 BP |
2930 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2931 | ofpacts)) { | |
2932 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2933 | return EINVAL; | |
2934 | } | |
1f317cb5 PS |
2935 | fs->ofpacts = ofpbuf_data(ofpacts); |
2936 | fs->ofpacts_len = ofpbuf_size(ofpacts); | |
f25d0cf3 | 2937 | |
4ffd1b43 BP |
2938 | return 0; |
2939 | } | |
2940 | ||
5e9d0469 BP |
2941 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
2942 | * | |
2943 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
2944 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
2945 | static uint64_t | |
2946 | unknown_to_zero(uint64_t count) | |
2947 | { | |
2948 | return count != UINT64_MAX ? count : 0; | |
2949 | } | |
2950 | ||
349adfb2 BP |
2951 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
2952 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 2953 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
2954 | void |
2955 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
2956 | struct list *replies) | |
2957 | { | |
f25d0cf3 | 2958 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
1f317cb5 | 2959 | size_t start_ofs = ofpbuf_size(reply); |
e28ac5cf BP |
2960 | enum ofp_version version = ofpmp_version(replies); |
2961 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 2962 | |
2e1ae200 | 2963 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
2964 | struct ofp11_flow_stats *ofs; |
2965 | ||
2966 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 2967 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
2968 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
2969 | version); | |
22a86f18 SH |
2970 | |
2971 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
1f317cb5 | 2972 | ofs->length = htons(ofpbuf_size(reply) - start_ofs); |
22a86f18 SH |
2973 | ofs->table_id = fs->table_id; |
2974 | ofs->pad = 0; | |
2975 | ofs->duration_sec = htonl(fs->duration_sec); | |
2976 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 2977 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
2978 | ofs->idle_timeout = htons(fs->idle_timeout); |
2979 | ofs->hard_timeout = htons(fs->hard_timeout); | |
0fb88c18 | 2980 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 2981 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
2982 | } else { |
2983 | ofs->flags = 0; | |
2984 | } | |
22a86f18 SH |
2985 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
2986 | ofs->cookie = fs->cookie; | |
2987 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
2988 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
2989 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 2990 | struct ofp10_flow_stats *ofs; |
349adfb2 | 2991 | |
1a59dc2c | 2992 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
2993 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
2994 | version); | |
1a59dc2c | 2995 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
1f317cb5 | 2996 | ofs->length = htons(ofpbuf_size(reply) - start_ofs); |
349adfb2 BP |
2997 | ofs->table_id = fs->table_id; |
2998 | ofs->pad = 0; | |
81a76618 | 2999 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3000 | ofs->duration_sec = htonl(fs->duration_sec); |
3001 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3002 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3003 | ofs->idle_timeout = htons(fs->idle_timeout); |
3004 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3005 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3006 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3007 | put_32aligned_be64(&ofs->packet_count, |
3008 | htonll(unknown_to_zero(fs->packet_count))); | |
3009 | put_32aligned_be64(&ofs->byte_count, | |
3010 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3011 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3012 | struct nx_flow_stats *nfs; |
1a59dc2c | 3013 | int match_len; |
349adfb2 | 3014 | |
1a59dc2c | 3015 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3016 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3017 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3018 | version); | |
1a59dc2c | 3019 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
1f317cb5 | 3020 | nfs->length = htons(ofpbuf_size(reply) - start_ofs); |
349adfb2 BP |
3021 | nfs->table_id = fs->table_id; |
3022 | nfs->pad = 0; | |
3023 | nfs->duration_sec = htonl(fs->duration_sec); | |
3024 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3025 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3026 | nfs->idle_timeout = htons(fs->idle_timeout); |
3027 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3028 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3029 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3030 | : UINT16_MAX); | |
3031 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3032 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3033 | : UINT16_MAX); | |
1a59dc2c | 3034 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3035 | nfs->cookie = fs->cookie; |
3036 | nfs->packet_count = htonll(fs->packet_count); | |
3037 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3038 | } else { |
428b2edd | 3039 | OVS_NOT_REACHED(); |
349adfb2 | 3040 | } |
f25d0cf3 | 3041 | |
982697a4 | 3042 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3043 | } |
3044 | ||
76c93b22 | 3045 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3046 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3047 | struct ofpbuf * |
3048 | ofputil_encode_aggregate_stats_reply( | |
3049 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3050 | const struct ofp_header *request) |
76c93b22 | 3051 | { |
a814ba0f BP |
3052 | struct ofp_aggregate_stats_reply *asr; |
3053 | uint64_t packet_count; | |
3054 | uint64_t byte_count; | |
76c93b22 | 3055 | struct ofpbuf *msg; |
982697a4 | 3056 | enum ofpraw raw; |
76c93b22 | 3057 | |
982697a4 | 3058 | ofpraw_decode(&raw, request); |
617da9cd | 3059 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3060 | packet_count = unknown_to_zero(stats->packet_count); |
3061 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3062 | } else { |
a814ba0f BP |
3063 | packet_count = stats->packet_count; |
3064 | byte_count = stats->byte_count; | |
76c93b22 BP |
3065 | } |
3066 | ||
a814ba0f BP |
3067 | msg = ofpraw_alloc_stats_reply(request, 0); |
3068 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3069 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3070 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3071 | asr->flow_count = htonl(stats->flow_count); | |
3072 | ||
76c93b22 BP |
3073 | return msg; |
3074 | } | |
3075 | ||
982697a4 BP |
3076 | enum ofperr |
3077 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3078 | const struct ofp_header *reply) | |
3079 | { | |
a814ba0f | 3080 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3081 | struct ofpbuf msg; |
982697a4 BP |
3082 | |
3083 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3084 | ofpraw_pull_assert(&msg); |
3085 | ||
6b8c377a | 3086 | asr = ofpbuf_l3(&msg); |
a814ba0f BP |
3087 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3088 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3089 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3090 | |
3091 | return 0; | |
3092 | } | |
3093 | ||
b78f6b77 BP |
3094 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3095 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3096 | * an OpenFlow error code. */ | |
90bf1e07 | 3097 | enum ofperr |
9b045a0c | 3098 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3099 | const struct ofp_header *oh) |
9b045a0c | 3100 | { |
982697a4 BP |
3101 | enum ofpraw raw; |
3102 | struct ofpbuf b; | |
9b045a0c | 3103 | |
982697a4 BP |
3104 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3105 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3106 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3107 | const struct ofp12_flow_removed *ofr; | |
3108 | enum ofperr error; | |
3109 | ||
3110 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3111 | ||
81a76618 | 3112 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3113 | if (error) { |
3114 | return error; | |
3115 | } | |
3116 | ||
81a76618 | 3117 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3118 | fr->cookie = ofr->cookie; |
3119 | fr->reason = ofr->reason; | |
95216219 | 3120 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3121 | fr->duration_sec = ntohl(ofr->duration_sec); |
3122 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3123 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3124 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3125 | fr->packet_count = ntohll(ofr->packet_count); | |
3126 | fr->byte_count = ntohll(ofr->byte_count); | |
3127 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3128 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3129 | |
982697a4 BP |
3130 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3131 | ||
81a76618 BP |
3132 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3133 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3134 | fr->cookie = ofr->cookie; |
3135 | fr->reason = ofr->reason; | |
95216219 | 3136 | fr->table_id = 255; |
9b045a0c BP |
3137 | fr->duration_sec = ntohl(ofr->duration_sec); |
3138 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3139 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3140 | fr->hard_timeout = 0; |
9b045a0c BP |
3141 | fr->packet_count = ntohll(ofr->packet_count); |
3142 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3143 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3144 | struct nx_flow_removed *nfr; |
c2725b60 | 3145 | enum ofperr error; |
9b045a0c | 3146 | |
9b045a0c | 3147 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3148 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3149 | NULL, NULL); | |
9b045a0c BP |
3150 | if (error) { |
3151 | return error; | |
3152 | } | |
1f317cb5 | 3153 | if (ofpbuf_size(&b)) { |
90bf1e07 | 3154 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3155 | } |
3156 | ||
81a76618 | 3157 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3158 | fr->cookie = nfr->cookie; |
3159 | fr->reason = nfr->reason; | |
745bfd5e | 3160 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3161 | fr->duration_sec = ntohl(nfr->duration_sec); |
3162 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3163 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3164 | fr->hard_timeout = 0; |
9b045a0c BP |
3165 | fr->packet_count = ntohll(nfr->packet_count); |
3166 | fr->byte_count = ntohll(nfr->byte_count); | |
3167 | } else { | |
428b2edd | 3168 | OVS_NOT_REACHED(); |
9b045a0c BP |
3169 | } |
3170 | ||
3171 | return 0; | |
3172 | } | |
3173 | ||
588cd7b5 | 3174 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3175 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3176 | * message. */ |
3177 | struct ofpbuf * | |
3178 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3179 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3180 | { |
3181 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3182 | enum ofp_flow_removed_reason reason = fr->reason; |
3183 | ||
3184 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3185 | reason = OFPRR_DELETE; | |
3186 | } | |
588cd7b5 | 3187 | |
27527aa0 | 3188 | switch (protocol) { |
75fa58f8 | 3189 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3190 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3191 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3192 | case OFPUTIL_P_OF14_OXM: |
3193 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3194 | struct ofp12_flow_removed *ofr; |
3195 | ||
3196 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3197 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3198 | htonl(0), |
3199 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3200 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3201 | ofr->cookie = fr->cookie; | |
81a76618 | 3202 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3203 | ofr->reason = reason; |
95216219 | 3204 | ofr->table_id = fr->table_id; |
83974732 SH |
3205 | ofr->duration_sec = htonl(fr->duration_sec); |
3206 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3207 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3208 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3209 | ofr->packet_count = htonll(fr->packet_count); |
3210 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3211 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3212 | break; |
3213 | } | |
3214 | ||
85813857 BP |
3215 | case OFPUTIL_P_OF10_STD: |
3216 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3217 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3218 | |
982697a4 BP |
3219 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3220 | htonl(0), 0); | |
3221 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3222 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3223 | ofr->cookie = fr->cookie; |
81a76618 | 3224 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3225 | ofr->reason = reason; |
588cd7b5 BP |
3226 | ofr->duration_sec = htonl(fr->duration_sec); |
3227 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3228 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3229 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3230 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3231 | break; |
3232 | } | |
3233 | ||
85813857 BP |
3234 | case OFPUTIL_P_OF10_NXM: |
3235 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3236 | struct nx_flow_removed *nfr; |
3237 | int match_len; | |
3238 | ||
982697a4 BP |
3239 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3240 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3241 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3242 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3243 | |
6b8c377a | 3244 | nfr = ofpbuf_l3(msg); |
588cd7b5 | 3245 | nfr->cookie = fr->cookie; |
81a76618 | 3246 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3247 | nfr->reason = reason; |
745bfd5e | 3248 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3249 | nfr->duration_sec = htonl(fr->duration_sec); |
3250 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3251 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3252 | nfr->match_len = htons(match_len); | |
3253 | nfr->packet_count = htonll(fr->packet_count); | |
3254 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3255 | break; |
3256 | } | |
3257 | ||
3258 | default: | |
428b2edd | 3259 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3260 | } |
3261 | ||
3262 | return msg; | |
3263 | } | |
3264 | ||
7cfb9651 SH |
3265 | static void |
3266 | ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin, | |
81a76618 | 3267 | struct match *match, struct ofpbuf *b) |
7cfb9651 | 3268 | { |
1f317cb5 PS |
3269 | pin->packet = ofpbuf_data(b); |
3270 | pin->packet_len = ofpbuf_size(b); | |
7cfb9651 | 3271 | |
4e022ec0 | 3272 | pin->fmd.in_port = match->flow.in_port.ofp_port; |
296e07ac | 3273 | pin->fmd.tun_id = match->flow.tunnel.tun_id; |
0ad90c84 JR |
3274 | pin->fmd.tun_src = match->flow.tunnel.ip_src; |
3275 | pin->fmd.tun_dst = match->flow.tunnel.ip_dst; | |
81a76618 BP |
3276 | pin->fmd.metadata = match->flow.metadata; |
3277 | memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs); | |
ac923e91 | 3278 | pin->fmd.pkt_mark = match->flow.pkt_mark; |
7cfb9651 SH |
3279 | } |
3280 | ||
f7cc6bd8 | 3281 | enum ofperr |
65120a8a EJ |
3282 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3283 | const struct ofp_header *oh) | |
3284 | { | |
982697a4 BP |
3285 | enum ofpraw raw; |
3286 | struct ofpbuf b; | |
65120a8a | 3287 | |
65120a8a | 3288 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3289 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3290 | |
982697a4 BP |
3291 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3292 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3293 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3294 | const struct ofp13_packet_in *opi; | |
81a76618 | 3295 | struct match match; |
7cfb9651 | 3296 | int error; |
2e1ae200 JR |
3297 | size_t packet_in_size; |
3298 | ||
3299 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3300 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3301 | } else { | |
3302 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3303 | } | |
7cfb9651 | 3304 | |
2e1ae200 | 3305 | opi = ofpbuf_pull(&b, packet_in_size); |
81a76618 | 3306 | error = oxm_pull_match_loose(&b, &match); |
7cfb9651 SH |
3307 | if (error) { |
3308 | return error; | |
3309 | } | |
3310 | ||
3311 | if (!ofpbuf_try_pull(&b, 2)) { | |
3312 | return OFPERR_OFPBRC_BAD_LEN; | |
3313 | } | |
3314 | ||
2e1ae200 JR |
3315 | pin->reason = opi->pi.reason; |
3316 | pin->table_id = opi->pi.table_id; | |
3317 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3318 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3319 | |
2e1ae200 JR |
3320 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3321 | pin->cookie = opi->cookie; | |
3322 | } | |
7cfb9651 | 3323 | |
81a76618 | 3324 | ofputil_decode_packet_in_finish(pin, &match, &b); |
7cfb9651 | 3325 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3326 | const struct ofp10_packet_in *opi; |
982697a4 | 3327 | |
31a9e63f | 3328 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3329 | |
3330 | pin->packet = opi->data; | |
1f317cb5 | 3331 | pin->packet_len = ofpbuf_size(&b); |
65120a8a | 3332 | |
4e022ec0 | 3333 | pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port)); |
65120a8a EJ |
3334 | pin->reason = opi->reason; |
3335 | pin->buffer_id = ntohl(opi->buffer_id); | |
3336 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3337 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3338 | const struct ofp11_packet_in *opi; | |
3339 | enum ofperr error; | |
3340 | ||
3341 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3342 | ||
1f317cb5 PS |
3343 | pin->packet = ofpbuf_data(&b); |
3344 | pin->packet_len = ofpbuf_size(&b); | |
4d197ebb BP |
3345 | |
3346 | pin->buffer_id = ntohl(opi->buffer_id); | |
3347 | error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port); | |
3348 | if (error) { | |
3349 | return error; | |
3350 | } | |
3351 | pin->total_len = ntohs(opi->total_len); | |
3352 | pin->reason = opi->reason; | |
3353 | pin->table_id = opi->table_id; | |
982697a4 | 3354 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3355 | const struct nx_packet_in *npi; |
81a76618 | 3356 | struct match match; |
54834960 EJ |
3357 | int error; |
3358 | ||
54834960 | 3359 | npi = ofpbuf_pull(&b, sizeof *npi); |
81a76618 | 3360 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL, |
b5ae8913 | 3361 | NULL); |
54834960 EJ |
3362 | if (error) { |
3363 | return error; | |
3364 | } | |
3365 | ||
3366 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3367 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3368 | } |
3369 | ||
54834960 EJ |
3370 | pin->reason = npi->reason; |
3371 | pin->table_id = npi->table_id; | |
3372 | pin->cookie = npi->cookie; | |
3373 | ||
54834960 EJ |
3374 | pin->buffer_id = ntohl(npi->buffer_id); |
3375 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3376 | |
81a76618 | 3377 | ofputil_decode_packet_in_finish(pin, &match, &b); |
65120a8a | 3378 | } else { |
428b2edd | 3379 | OVS_NOT_REACHED(); |
65120a8a EJ |
3380 | } |
3381 | ||
3382 | return 0; | |
3383 | } | |
3384 | ||
d94240ec | 3385 | static void |
81a76618 BP |
3386 | ofputil_packet_in_to_match(const struct ofputil_packet_in *pin, |
3387 | struct match *match) | |
d94240ec SH |
3388 | { |
3389 | int i; | |
3390 | ||
81a76618 | 3391 | match_init_catchall(match); |
42edbe39 | 3392 | if (pin->fmd.tun_id != htonll(0)) { |
81a76618 | 3393 | match_set_tun_id(match, pin->fmd.tun_id); |
42edbe39 | 3394 | } |
0ad90c84 JR |
3395 | if (pin->fmd.tun_src != htonl(0)) { |
3396 | match_set_tun_src(match, pin->fmd.tun_src); | |
3397 | } | |
3398 | if (pin->fmd.tun_dst != htonl(0)) { | |
3399 | match_set_tun_dst(match, pin->fmd.tun_dst); | |
3400 | } | |
42edbe39 | 3401 | if (pin->fmd.metadata != htonll(0)) { |
81a76618 | 3402 | match_set_metadata(match, pin->fmd.metadata); |
42edbe39 | 3403 | } |
d94240ec SH |
3404 | |
3405 | for (i = 0; i < FLOW_N_REGS; i++) { | |
42edbe39 | 3406 | if (pin->fmd.regs[i]) { |
81a76618 | 3407 | match_set_reg(match, i, pin->fmd.regs[i]); |
42edbe39 | 3408 | } |
d94240ec SH |
3409 | } |
3410 | ||
ac923e91 JG |
3411 | if (pin->fmd.pkt_mark != 0) { |
3412 | match_set_pkt_mark(match, pin->fmd.pkt_mark); | |
3413 | } | |
3414 | ||
81a76618 | 3415 | match_set_in_port(match, pin->fmd.in_port); |
d94240ec SH |
3416 | } |
3417 | ||
0f83fea0 BP |
3418 | static struct ofpbuf * |
3419 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3420 | { | |
3421 | struct ofp10_packet_in *opi; | |
3422 | struct ofpbuf *packet; | |
3423 | ||
3424 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3425 | htonl(0), pin->packet_len); | |
3426 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3427 | opi->total_len = htons(pin->total_len); | |
3428 | opi->in_port = htons(ofp_to_u16(pin->fmd.in_port)); | |
3429 | opi->reason = pin->reason; | |
3430 | opi->buffer_id = htonl(pin->buffer_id); | |
3431 | ||
3432 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3433 | ||
3434 | return packet; | |
3435 | } | |
3436 | ||
3437 | static struct ofpbuf * | |
3438 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3439 | { | |
3440 | struct nx_packet_in *npi; | |
3441 | struct ofpbuf *packet; | |
3442 | struct match match; | |
3443 | size_t match_len; | |
3444 | ||
3445 | ofputil_packet_in_to_match(pin, &match); | |
3446 | ||
3447 | /* The final argument is just an estimate of the space required. */ | |
3448 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
3449 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3450 | + 2 + pin->packet_len)); | |
3451 | ofpbuf_put_zeros(packet, sizeof *npi); | |
3452 | match_len = nx_put_match(packet, &match, 0, 0); | |
3453 | ofpbuf_put_zeros(packet, 2); | |
3454 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3455 | ||
6b8c377a | 3456 | npi = ofpbuf_l3(packet); |
0f83fea0 BP |
3457 | npi->buffer_id = htonl(pin->buffer_id); |
3458 | npi->total_len = htons(pin->total_len); | |
3459 | npi->reason = pin->reason; | |
3460 | npi->table_id = pin->table_id; | |
3461 | npi->cookie = pin->cookie; | |
3462 | npi->match_len = htons(match_len); | |
3463 | ||
3464 | return packet; | |
3465 | } | |
3466 | ||
4d197ebb BP |
3467 | static struct ofpbuf * |
3468 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3469 | { | |
3470 | struct ofp11_packet_in *opi; | |
3471 | struct ofpbuf *packet; | |
3472 | ||
3473 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3474 | htonl(0), pin->packet_len); | |
3475 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3476 | opi->buffer_id = htonl(pin->buffer_id); | |
3477 | opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port); | |
3478 | opi->in_phy_port = opi->in_port; | |
3479 | opi->total_len = htons(pin->total_len); | |
3480 | opi->reason = pin->reason; | |
3481 | opi->table_id = pin->table_id; | |
3482 | ||
3483 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3484 | ||
3485 | return packet; | |
3486 | } | |
3487 | ||
0f83fea0 BP |
3488 | static struct ofpbuf * |
3489 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3490 | enum ofputil_protocol protocol) | |
3491 | { | |
3492 | struct ofp13_packet_in *opi; | |
3493 | struct match match; | |
3494 | enum ofpraw packet_in_raw; | |
3495 | enum ofp_version packet_in_version; | |
3496 | size_t packet_in_size; | |
3497 | struct ofpbuf *packet; | |
3498 | ||
3499 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3500 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3501 | packet_in_version = OFP12_VERSION; | |
3502 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3503 | } else { | |
3504 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
3505 | packet_in_version = OFP13_VERSION; | |
3506 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3507 | } | |
3508 | ||
3509 | ofputil_packet_in_to_match(pin, &match); | |
3510 | ||
3511 | /* The final argument is just an estimate of the space required. */ | |
3512 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
3513 | htonl(0), (sizeof(struct flow_metadata) * 2 | |
3514 | + 2 + pin->packet_len)); | |
3515 | ofpbuf_put_zeros(packet, packet_in_size); | |
9d84066c | 3516 | oxm_put_match(packet, &match, ofputil_protocol_to_ofp_version(protocol)); |
0f83fea0 BP |
3517 | ofpbuf_put_zeros(packet, 2); |
3518 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3519 | ||
6b8c377a | 3520 | opi = ofpbuf_l3(packet); |
0f83fea0 BP |
3521 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3522 | opi->pi.total_len = htons(pin->total_len); | |
3523 | opi->pi.reason = pin->reason; | |
3524 | opi->pi.table_id = pin->table_id; | |
3525 | if (protocol == OFPUTIL_P_OF13_OXM) { | |
3526 | opi->cookie = pin->cookie; | |
3527 | } | |
3528 | ||
3529 | return packet; | |
3530 | } | |
3531 | ||
54834960 EJ |
3532 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3533 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3534 | struct ofpbuf * |
54834960 | 3535 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3536 | enum ofputil_protocol protocol, |
54834960 | 3537 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3538 | { |
54834960 | 3539 | struct ofpbuf *packet; |
ebb57021 | 3540 | |
0f83fea0 BP |
3541 | switch (protocol) { |
3542 | case OFPUTIL_P_OF10_STD: | |
3543 | case OFPUTIL_P_OF10_STD_TID: | |
3544 | case OFPUTIL_P_OF10_NXM: | |
3545 | case OFPUTIL_P_OF10_NXM_TID: | |
3546 | packet = (packet_in_format == NXPIF_NXM | |
3547 | ? ofputil_encode_nx_packet_in(pin) | |
3548 | : ofputil_encode_ofp10_packet_in(pin)); | |
3549 | break; | |
2e1ae200 | 3550 | |
0f83fea0 | 3551 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3552 | packet = ofputil_encode_ofp11_packet_in(pin); |
3553 | break; | |
d94240ec | 3554 | |
0f83fea0 BP |
3555 | case OFPUTIL_P_OF12_OXM: |
3556 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3557 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3558 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3559 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3560 | break; | |
3561 | ||
3562 | default: | |
428b2edd | 3563 | OVS_NOT_REACHED(); |
54834960 | 3564 | } |
54834960 | 3565 | |
0f83fea0 | 3566 | ofpmsg_update_length(packet); |
54834960 | 3567 | return packet; |
ebb57021 BP |
3568 | } |
3569 | ||
5014a89d BP |
3570 | /* Returns a string form of 'reason'. The return value is either a statically |
3571 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3572 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3573 | const char * |
5014a89d BP |
3574 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3575 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3576 | { |
7c1a76a4 BP |
3577 | switch (reason) { |
3578 | case OFPR_NO_MATCH: | |
3579 | return "no_match"; | |
3580 | case OFPR_ACTION: | |
3581 | return "action"; | |
3582 | case OFPR_INVALID_TTL: | |
3583 | return "invalid_ttl"; | |
3584 | ||
3585 | case OFPR_N_REASONS: | |
3586 | default: | |
5014a89d BP |
3587 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3588 | return reasonbuf; | |
7c1a76a4 BP |
3589 | } |
3590 | } | |
3591 | ||
3592 | bool | |
3593 | ofputil_packet_in_reason_from_string(const char *s, | |
3594 | enum ofp_packet_in_reason *reason) | |
3595 | { | |
3596 | int i; | |
3597 | ||
3598 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3599 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3600 | const char *reason_s; | |
3601 | ||
3602 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3603 | sizeof reasonbuf); | |
3604 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3605 | *reason = i; |
3606 | return true; | |
3607 | } | |
3608 | } | |
3609 | return false; | |
3610 | } | |
3611 | ||
f25d0cf3 BP |
3612 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3613 | * 'po'. | |
3614 | * | |
3615 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3616 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3617 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3618 | * | |
3619 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3620 | enum ofperr |
3621 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3622 | const struct ofp_header *oh, |
f25d0cf3 | 3623 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3624 | { |
982697a4 | 3625 | enum ofpraw raw; |
c6a93eb7 BP |
3626 | struct ofpbuf b; |
3627 | ||
982697a4 BP |
3628 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3629 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3630 | |
eb5ee596 SH |
3631 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3632 | enum ofperr error; | |
3633 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3634 | ||
3635 | po->buffer_id = ntohl(opo->buffer_id); | |
3636 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3637 | if (error) { | |
3638 | return error; | |
3639 | } | |
3640 | ||
e3f8f887 JR |
3641 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3642 | oh->version, ofpacts); | |
eb5ee596 SH |
3643 | if (error) { |
3644 | return error; | |
3645 | } | |
eb5ee596 | 3646 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3647 | enum ofperr error; |
31a9e63f | 3648 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3649 | |
3650 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3651 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3652 | |
e3f8f887 JR |
3653 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3654 | oh->version, ofpacts); | |
8a6bc7cd SH |
3655 | if (error) { |
3656 | return error; | |
3657 | } | |
3658 | } else { | |
428b2edd | 3659 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3660 | } |
3661 | ||
4e022ec0 AW |
3662 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3663 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3664 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3665 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3666 | po->in_port); | |
2e1bfcb6 | 3667 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3668 | } |
3669 | ||
1f317cb5 PS |
3670 | po->ofpacts = ofpbuf_data(ofpacts); |
3671 | po->ofpacts_len = ofpbuf_size(ofpacts); | |
c6a93eb7 BP |
3672 | |
3673 | if (po->buffer_id == UINT32_MAX) { | |
1f317cb5 PS |
3674 | po->packet = ofpbuf_data(&b); |
3675 | po->packet_len = ofpbuf_size(&b); | |
c6a93eb7 BP |
3676 | } else { |
3677 | po->packet = NULL; | |
3678 | po->packet_len = 0; | |
3679 | } | |
3680 | ||
3681 | return 0; | |
3682 | } | |
6c038611 BP |
3683 | \f |
3684 | /* ofputil_phy_port */ | |
3685 | ||
3686 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3687 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3688 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3689 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3690 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3691 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3692 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3693 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3694 | ||
3695 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3696 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3697 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3698 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3699 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3700 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3701 | |
9e1fd49b BP |
3702 | static enum netdev_features |
3703 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3704 | { |
3705 | uint32_t ofp10 = ntohl(ofp10_); | |
3706 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3707 | } | |
3708 | ||
9e1fd49b BP |
3709 | static ovs_be32 |
3710 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3711 | { |
3712 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3713 | } | |
c6a93eb7 | 3714 | |
9e1fd49b BP |
3715 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3716 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3717 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3718 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3719 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3720 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3721 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3722 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3723 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3724 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3725 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3726 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3727 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3728 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3729 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3730 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3731 | ||
3732 | static enum netdev_features | |
3733 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3734 | { | |
3735 | return ntohl(ofp11) & 0xffff; | |
3736 | } | |
3737 | ||
3738 | static ovs_be32 | |
3739 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3740 | { | |
3741 | return htonl(features & 0xffff); | |
3742 | } | |
3743 | ||
3744 | static enum ofperr | |
3745 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3746 | const struct ofp10_phy_port *opp) | |
3747 | { | |
4e022ec0 | 3748 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
9e1fd49b BP |
3749 | memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN); |
3750 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); | |
3751 | ||
3752 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3753 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3754 | ||
3755 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3756 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3757 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3758 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3759 | ||
d02a5f8e BP |
3760 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3761 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3762 | |
3763 | return 0; | |
3764 | } | |
3765 | ||
3766 | static enum ofperr | |
3767 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3768 | const struct ofp11_port *op) | |
3769 | { | |
3770 | enum ofperr error; | |
3771 | ||
9e1fd49b BP |
3772 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3773 | if (error) { | |
3774 | return error; | |
3775 | } | |
3776 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3777 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3778 | ||
3779 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3780 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3781 | |
3782 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3783 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3784 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3785 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3786 | ||
3787 | pp->curr_speed = ntohl(op->curr_speed); | |
3788 | pp->max_speed = ntohl(op->max_speed); | |
3789 | ||
3790 | return 0; | |
3791 | } | |
3792 | ||
8c3cc785 BP |
3793 | static enum ofperr |
3794 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3795 | struct ofputil_phy_port *pp) | |
3796 | { | |
3797 | struct ofp14_port_desc_prop_ethernet *eth = ofpbuf_data(payload); | |
3798 | ||
3799 | if (ofpbuf_size(payload) != sizeof *eth) { | |
3800 | return OFPERR_OFPBPC_BAD_LEN; | |
3801 | } | |
3802 | ||
3803 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3804 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3805 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3806 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3807 | ||
3808 | pp->curr_speed = ntohl(eth->curr_speed); | |
3809 | pp->max_speed = ntohl(eth->max_speed); | |
3810 | ||
3811 | return 0; | |
3812 | } | |
3813 | ||
3814 | static enum ofperr | |
3815 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3816 | { | |
3817 | struct ofpbuf properties; | |
3818 | struct ofp14_port *op; | |
3819 | enum ofperr error; | |
3820 | size_t len; | |
3821 | ||
3822 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3823 | if (!op) { | |
3824 | return OFPERR_OFPBRC_BAD_LEN; | |
3825 | } | |
3826 | ||
3827 | len = ntohs(op->length); | |
3828 | if (len < sizeof *op || len - sizeof *op > ofpbuf_size(msg)) { | |
3829 | return OFPERR_OFPBRC_BAD_LEN; | |
3830 | } | |
3831 | len -= sizeof *op; | |
3832 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3833 | ||
3834 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3835 | if (error) { | |
3836 | return error; | |
3837 | } | |
3838 | memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN); | |
3839 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); | |
3840 | ||
3841 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3842 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3843 | ||
3844 | while (ofpbuf_size(&properties) > 0) { | |
3845 | struct ofpbuf payload; | |
3846 | enum ofperr error; | |
3847 | uint16_t type; | |
3848 | ||
3849 | error = ofputil_pull_property(&properties, &payload, &type); | |
3850 | if (error) { | |
3851 | return error; | |
3852 | } | |
3853 | ||
3854 | switch (type) { | |
3855 | case OFPPDPT14_ETHERNET: | |
3856 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3857 | break; | |
3858 | ||
3859 | default: | |
3860 | log_property(true, "unknown port property %"PRIu16, type); | |
3861 | error = 0; | |
3862 | break; | |
3863 | } | |
3864 | ||
3865 | if (error) { | |
3866 | return error; | |
3867 | } | |
3868 | } | |
3869 | ||
3870 | return 0; | |
3871 | } | |
3872 | ||
9e1fd49b BP |
3873 | static void |
3874 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3875 | struct ofp10_phy_port *opp) | |
3876 | { | |
3877 | memset(opp, 0, sizeof *opp); | |
3878 | ||
4e022ec0 | 3879 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
9e1fd49b BP |
3880 | memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
3881 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3882 | ||
3883 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3884 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3885 | ||
3886 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3887 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3888 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3889 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3890 | } | |
3891 | ||
3892 | static void | |
3893 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3894 | struct ofp11_port *op) | |
3895 | { | |
3896 | memset(op, 0, sizeof *op); | |
3897 | ||
3898 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3899 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3900 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); | |
3901 | ||
3902 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3903 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3904 | ||
3905 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3906 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3907 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3908 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3909 | ||
3910 | op->curr_speed = htonl(pp->curr_speed); | |
3911 | op->max_speed = htonl(pp->max_speed); | |
3912 | } | |
3913 | ||
8c3cc785 BP |
3914 | static void |
3915 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3916 | struct ofpbuf *b) | |
3917 | { | |
3918 | struct ofp14_port *op; | |
3919 | struct ofp14_port_desc_prop_ethernet *eth; | |
3920 | ||
3921 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3922 | ||
3923 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3924 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3925 | op->length = htons(sizeof *op + sizeof *eth); | |
3926 | memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN); | |
3927 | ovs_strlcpy(op->name, pp->name, sizeof op->name); | |
3928 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3929 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3930 | ||
3931 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
3932 | eth->type = htons(OFPPDPT14_ETHERNET); | |
3933 | eth->length = htons(sizeof *eth); | |
3934 | eth->curr = netdev_port_features_to_ofp11(pp->curr); | |
3935 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3936 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3937 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3938 | eth->curr_speed = htonl(pp->curr_speed); | |
3939 | eth->max_speed = htonl(pp->max_speed); | |
3940 | } | |
3941 | ||
9e1fd49b | 3942 | static void |
2e3fa633 SH |
3943 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3944 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3945 | { |
2e3fa633 SH |
3946 | switch (ofp_version) { |
3947 | case OFP10_VERSION: { | |
6b0f20ac BP |
3948 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
3949 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
3950 | break; |
3951 | } | |
3952 | ||
3953 | case OFP11_VERSION: | |
2e1ae200 JR |
3954 | case OFP12_VERSION: |
3955 | case OFP13_VERSION: { | |
6b0f20ac BP |
3956 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
3957 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
3958 | break; |
3959 | } | |
3960 | ||
c37c0382 | 3961 | case OFP14_VERSION: |
42dccab5 | 3962 | case OFP15_VERSION: |
8c3cc785 | 3963 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
3964 | break; |
3965 | ||
2e3fa633 | 3966 | default: |
428b2edd | 3967 | OVS_NOT_REACHED(); |
9e1fd49b BP |
3968 | } |
3969 | } | |
2be393ed | 3970 | |
70ae4f93 BP |
3971 | enum ofperr |
3972 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
3973 | ofp_port_t *port) | |
3974 | { | |
3975 | struct ofpbuf b; | |
3976 | enum ofpraw raw; | |
3977 | ||
3978 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
3979 | raw = ofpraw_pull_assert(&b); | |
3980 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
3981 | *port = OFPP_ANY; | |
3982 | return 0; | |
3983 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
3984 | ovs_be32 *ofp11_port; | |
3985 | ||
3986 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
3987 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
3988 | } else { | |
3989 | OVS_NOT_REACHED(); | |
3990 | } | |
3991 | } | |
3992 | ||
3993 | struct ofpbuf * | |
3994 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
3995 | ofp_port_t port) | |
3996 | { | |
3997 | struct ofpbuf *request; | |
3998 | ovs_be32 ofp11_port; | |
3999 | ||
4000 | switch (ofp_version) { | |
4001 | case OFP10_VERSION: | |
4002 | case OFP11_VERSION: | |
4003 | case OFP12_VERSION: | |
4004 | case OFP13_VERSION: | |
4005 | case OFP14_VERSION: | |
4006 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4007 | ofp_version, 0); | |
4008 | break; | |
4009 | ||
4010 | case OFP15_VERSION: | |
4011 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, | |
4012 | ofp_version, 0); | |
4013 | ofp11_port = ofputil_port_to_ofp11(port); | |
4014 | ofpbuf_put(request, &ofp11_port, sizeof ofp11_port); | |
4015 | break; | |
4016 | ||
4017 | default: | |
4018 | OVS_NOT_REACHED(); | |
4019 | } | |
4020 | ||
4021 | return request; | |
4022 | } | |
4023 | ||
2be393ed | 4024 | void |
e28ac5cf | 4025 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
2be393ed JP |
4026 | struct list *replies) |
4027 | { | |
6b0f20ac BP |
4028 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
4029 | size_t start_ofs = ofpbuf_size(reply); | |
c37c0382 | 4030 | |
6b0f20ac BP |
4031 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4032 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4033 | } |
9e1fd49b BP |
4034 | \f |
4035 | /* ofputil_switch_features */ | |
4036 | ||
4037 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4038 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4039 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4040 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4041 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4042 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4043 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4044 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4045 | ||
60202987 SH |
4046 | static uint32_t |
4047 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4048 | { | |
4049 | /* Handle capabilities whose bit is unique for all Open Flow versions */ | |
4050 | switch (ofp_version) { | |
4051 | case OFP10_VERSION: | |
4052 | case OFP11_VERSION: | |
4053 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4054 | case OFP12_VERSION: | |
2e1ae200 | 4055 | case OFP13_VERSION: |
c37c0382 | 4056 | case OFP14_VERSION: |
42dccab5 | 4057 | case OFP15_VERSION: |
18cc69d9 | 4058 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4059 | default: |
4060 | /* Caller needs to check osf->header.version itself */ | |
4061 | return 0; | |
4062 | } | |
4063 | } | |
4064 | ||
9e1fd49b BP |
4065 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4066 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4067 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4068 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4069 | * OFPERR_* value. */ |
4070 | enum ofperr | |
982697a4 | 4071 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4072 | struct ofputil_switch_features *features, |
4073 | struct ofpbuf *b) | |
4074 | { | |
982697a4 BP |
4075 | const struct ofp_switch_features *osf; |
4076 | enum ofpraw raw; | |
4077 | ||
4078 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4079 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4080 | |
982697a4 | 4081 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4082 | features->datapath_id = ntohll(osf->datapath_id); |
4083 | features->n_buffers = ntohl(osf->n_buffers); | |
4084 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4085 | features->auxiliary_id = 0; |
9e1fd49b | 4086 | |
60202987 SH |
4087 | features->capabilities = ntohl(osf->capabilities) & |
4088 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4089 | |
982697a4 | 4090 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4091 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4092 | features->capabilities |= OFPUTIL_C_STP; | |
4093 | } | |
08d1e234 BP |
4094 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4095 | OFP10_VERSION); | |
2e1ae200 JR |
4096 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4097 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4098 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4099 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4100 | } | |
08d1e234 | 4101 | features->ofpacts = 0; |
2e1ae200 JR |
4102 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4103 | features->auxiliary_id = osf->auxiliary_id; | |
4104 | } | |
9e1fd49b BP |
4105 | } else { |
4106 | return OFPERR_OFPBRC_BAD_VERSION; | |
4107 | } | |
4108 | ||
4109 | return 0; | |
4110 | } | |
4111 | ||
fca6d553 BP |
4112 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4113 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4114 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4115 | * | |
4116 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4117 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4118 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4119 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4120 | * message. | |
4121 | * | |
4122 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4123 | * stats request to get the ports. */ | |
347b7ac4 | 4124 | bool |
fca6d553 | 4125 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4126 | { |
1f317cb5 | 4127 | struct ofp_header *oh = ofpbuf_data(b); |
13e1aff8 | 4128 | size_t phy_port_size; |
347b7ac4 | 4129 | |
fca6d553 | 4130 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4131 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4132 | return false; |
13e1aff8 BP |
4133 | } |
4134 | ||
4135 | phy_port_size = (oh->version == OFP10_VERSION | |
4136 | ? sizeof(struct ofp10_phy_port) | |
4137 | : sizeof(struct ofp11_port)); | |
4138 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4139 | /* There's room for additional ports in the feature reply. | |
4140 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4141 | return true; |
4142 | } | |
13e1aff8 BP |
4143 | |
4144 | /* The feature reply has no room for more ports. Probably the list is | |
4145 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4146 | * OFPST_PORT_DESC. */ | |
4147 | ofpbuf_set_size(b, sizeof *oh + sizeof(struct ofp_switch_features)); | |
4148 | ofpmsg_update_length(b); | |
4149 | return false; | |
347b7ac4 JP |
4150 | } |
4151 | ||
9e1fd49b BP |
4152 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4153 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4154 | * information to the buffer with subsequent calls to | |
4155 | * ofputil_put_switch_features_port(). */ | |
4156 | struct ofpbuf * | |
4157 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4158 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4159 | { | |
4160 | struct ofp_switch_features *osf; | |
4161 | struct ofpbuf *b; | |
2e3fa633 SH |
4162 | enum ofp_version version; |
4163 | enum ofpraw raw; | |
982697a4 BP |
4164 | |
4165 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4166 | switch (version) { |
4167 | case OFP10_VERSION: | |
4168 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4169 | break; | |
4170 | case OFP11_VERSION: | |
4171 | case OFP12_VERSION: | |
4172 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4173 | break; | |
2e1ae200 | 4174 | case OFP13_VERSION: |
c37c0382 | 4175 | case OFP14_VERSION: |
42dccab5 | 4176 | case OFP15_VERSION: |
2e1ae200 JR |
4177 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4178 | break; | |
2e3fa633 | 4179 | default: |
428b2edd | 4180 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4181 | } |
4182 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4183 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4184 | osf->datapath_id = htonll(features->datapath_id); |
4185 | osf->n_buffers = htonl(features->n_buffers); | |
4186 | osf->n_tables = features->n_tables; | |
4187 | ||
4188 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4189 | osf->capabilities = htonl(features->capabilities & |
4190 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4191 | switch (version) { |
4192 | case OFP10_VERSION: | |
9e1fd49b BP |
4193 | if (features->capabilities & OFPUTIL_C_STP) { |
4194 | osf->capabilities |= htonl(OFPC10_STP); | |
4195 | } | |
08d1e234 BP |
4196 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4197 | OFP10_VERSION); | |
2e3fa633 | 4198 | break; |
2e1ae200 | 4199 | case OFP13_VERSION: |
c37c0382 | 4200 | case OFP14_VERSION: |
42dccab5 | 4201 | case OFP15_VERSION: |
2e1ae200 JR |
4202 | osf->auxiliary_id = features->auxiliary_id; |
4203 | /* fall through */ | |
2e3fa633 SH |
4204 | case OFP11_VERSION: |
4205 | case OFP12_VERSION: | |
9e1fd49b BP |
4206 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4207 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4208 | } | |
2e3fa633 SH |
4209 | break; |
4210 | default: | |
428b2edd | 4211 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4212 | } |
4213 | ||
4214 | return b; | |
4215 | } | |
4216 | ||
4217 | /* Encodes 'pp' into the format required by the switch_features message already | |
4218 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4219 | * and appends the encoded version to 'b'. */ | |
4220 | void | |
4221 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4222 | struct ofpbuf *b) | |
4223 | { | |
1f317cb5 | 4224 | const struct ofp_header *oh = ofpbuf_data(b); |
9e1fd49b | 4225 | |
e0c91c0c | 4226 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4227 | /* Try adding a port description to the message, but drop it again if |
4228 | * the buffer overflows. (This possibility for overflow is why | |
4229 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
4230 | size_t start_ofs = ofpbuf_size(b); | |
e0c91c0c | 4231 | ofputil_put_phy_port(oh->version, pp, b); |
6b0f20ac BP |
4232 | if (ofpbuf_size(b) > UINT16_MAX) { |
4233 | ofpbuf_set_size(b, start_ofs); | |
4234 | } | |
e0c91c0c | 4235 | } |
9e1fd49b BP |
4236 | } |
4237 | \f | |
4238 | /* ofputil_port_status */ | |
4239 | ||
4240 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4241 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4242 | enum ofperr | |
982697a4 | 4243 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4244 | struct ofputil_port_status *ps) |
4245 | { | |
982697a4 | 4246 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4247 | struct ofpbuf b; |
4248 | int retval; | |
4249 | ||
982697a4 BP |
4250 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4251 | ofpraw_pull_assert(&b); | |
4252 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4253 | ||
9e1fd49b BP |
4254 | if (ops->reason != OFPPR_ADD && |
4255 | ops->reason != OFPPR_DELETE && | |
4256 | ops->reason != OFPPR_MODIFY) { | |
4257 | return OFPERR_NXBRC_BAD_REASON; | |
4258 | } | |
4259 | ps->reason = ops->reason; | |
4260 | ||
982697a4 | 4261 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4262 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4263 | return retval; |
4264 | } | |
4265 | ||
4266 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4267 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4268 | * a buffer owned by the caller. */ | |
4269 | struct ofpbuf * | |
4270 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4271 | enum ofputil_protocol protocol) | |
4272 | { | |
4273 | struct ofp_port_status *ops; | |
4274 | struct ofpbuf *b; | |
2e3fa633 SH |
4275 | enum ofp_version version; |
4276 | enum ofpraw raw; | |
982697a4 BP |
4277 | |
4278 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4279 | switch (version) { |
4280 | case OFP10_VERSION: | |
4281 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4282 | break; | |
4283 | ||
4284 | case OFP11_VERSION: | |
4285 | case OFP12_VERSION: | |
2e1ae200 | 4286 | case OFP13_VERSION: |
2e3fa633 SH |
4287 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4288 | break; | |
4289 | ||
8c3cc785 | 4290 | case OFP14_VERSION: |
42dccab5 | 4291 | case OFP15_VERSION: |
8c3cc785 BP |
4292 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4293 | break; | |
4294 | ||
2e3fa633 | 4295 | default: |
428b2edd | 4296 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4297 | } |
4298 | ||
4299 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4300 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4301 | ops->reason = ps->reason; |
982697a4 BP |
4302 | ofputil_put_phy_port(version, &ps->desc, b); |
4303 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4304 | return b; |
4305 | } | |
918f2b82 | 4306 | |
9e1fd49b BP |
4307 | /* ofputil_port_mod */ |
4308 | ||
18cc69d9 BP |
4309 | static enum ofperr |
4310 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4311 | struct ofputil_port_mod *pm) | |
4312 | { | |
4313 | struct ofp14_port_mod_prop_ethernet *eth = ofpbuf_data(property); | |
4314 | ||
4315 | if (ofpbuf_size(property) != sizeof *eth) { | |
4316 | return OFPERR_OFPBRC_BAD_LEN; | |
4317 | } | |
4318 | ||
4319 | pm->advertise = netdev_port_features_from_ofp11(eth->advertise); | |
4320 | return 0; | |
4321 | } | |
4322 | ||
9e1fd49b BP |
4323 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4324 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4325 | enum ofperr | |
4326 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4327 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4328 | { |
982697a4 BP |
4329 | enum ofpraw raw; |
4330 | struct ofpbuf b; | |
9e1fd49b | 4331 | |
982697a4 BP |
4332 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4333 | raw = ofpraw_pull_assert(&b); | |
4334 | ||
4335 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
1f317cb5 | 4336 | const struct ofp10_port_mod *opm = ofpbuf_data(&b); |
9e1fd49b | 4337 | |
4e022ec0 | 4338 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
9e1fd49b BP |
4339 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); |
4340 | pm->config = ntohl(opm->config) & OFPPC10_ALL; | |
4341 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4342 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4343 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
1f317cb5 | 4344 | const struct ofp11_port_mod *opm = ofpbuf_data(&b); |
9e1fd49b BP |
4345 | enum ofperr error; |
4346 | ||
9e1fd49b BP |
4347 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4348 | if (error) { | |
4349 | return error; | |
4350 | } | |
4351 | ||
4352 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4353 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4354 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4355 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4356 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4357 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4358 | enum ofperr error; | |
4359 | ||
4360 | memset(pm, 0, sizeof *pm); | |
4361 | ||
4362 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4363 | if (error) { | |
4364 | return error; | |
4365 | } | |
4366 | ||
4367 | memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN); | |
4368 | pm->config = ntohl(opm->config) & OFPPC11_ALL; | |
4369 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4370 | ||
4371 | while (ofpbuf_size(&b) > 0) { | |
4372 | struct ofpbuf property; | |
4373 | enum ofperr error; | |
4374 | uint16_t type; | |
4375 | ||
4376 | error = ofputil_pull_property(&b, &property, &type); | |
4377 | if (error) { | |
4378 | return error; | |
4379 | } | |
4380 | ||
4381 | switch (type) { | |
4382 | case OFPPMPT14_ETHERNET: | |
4383 | error = parse_port_mod_ethernet_property(&property, pm); | |
4384 | break; | |
4385 | ||
4386 | default: | |
4387 | log_property(loose, "unknown port_mod property %"PRIu16, type); | |
4388 | if (loose) { | |
4389 | error = 0; | |
4390 | } else if (type == OFPPMPT14_EXPERIMENTER) { | |
4391 | error = OFPERR_OFPBPC_BAD_EXPERIMENTER; | |
4392 | } else { | |
4393 | error = OFPERR_OFPBRC_BAD_TYPE; | |
4394 | } | |
4395 | break; | |
4396 | } | |
4397 | ||
4398 | if (error) { | |
4399 | return error; | |
4400 | } | |
4401 | } | |
9e1fd49b | 4402 | } else { |
982697a4 | 4403 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4404 | } |
4405 | ||
4406 | pm->config &= pm->mask; | |
4407 | return 0; | |
4408 | } | |
4409 | ||
4410 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4411 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4412 | * owned by the caller. */ | |
4413 | struct ofpbuf * | |
4414 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4415 | enum ofputil_protocol protocol) | |
4416 | { | |
2e3fa633 | 4417 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4418 | struct ofpbuf *b; |
4419 | ||
2e3fa633 SH |
4420 | switch (ofp_version) { |
4421 | case OFP10_VERSION: { | |
9e1fd49b BP |
4422 | struct ofp10_port_mod *opm; |
4423 | ||
982697a4 BP |
4424 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4425 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4426 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
9e1fd49b BP |
4427 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4428 | opm->config = htonl(pm->config & OFPPC10_ALL); | |
4429 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4430 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4431 | break; |
4432 | } | |
4433 | ||
5fe7c919 | 4434 | case OFP11_VERSION: |
2e1ae200 JR |
4435 | case OFP12_VERSION: |
4436 | case OFP13_VERSION: { | |
9e1fd49b BP |
4437 | struct ofp11_port_mod *opm; |
4438 | ||
982697a4 BP |
4439 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4440 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4441 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
9e1fd49b BP |
4442 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); |
4443 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4444 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4445 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4446 | break; |
4447 | } | |
42dccab5 BP |
4448 | case OFP14_VERSION: |
4449 | case OFP15_VERSION: { | |
18cc69d9 BP |
4450 | struct ofp14_port_mod_prop_ethernet *eth; |
4451 | struct ofp14_port_mod *opm; | |
4452 | ||
4453 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth); | |
4454 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4455 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
4456 | memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN); | |
4457 | opm->config = htonl(pm->config & OFPPC11_ALL); | |
4458 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4459 | ||
4460 | if (pm->advertise) { | |
4461 | eth = ofpbuf_put_zeros(b, sizeof *eth); | |
4462 | eth->type = htons(OFPPMPT14_ETHERNET); | |
4463 | eth->length = htons(sizeof *eth); | |
4464 | eth->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
4465 | } | |
c37c0382 | 4466 | break; |
18cc69d9 | 4467 | } |
918f2b82 | 4468 | default: |
428b2edd | 4469 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4470 | } |
4471 | ||
4472 | return b; | |
4473 | } | |
72b25867 BP |
4474 | \f |
4475 | /* Table features. */ | |
918f2b82 | 4476 | |
5deff5aa | 4477 | static enum ofperr |
9a4eddbb | 4478 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
72b25867 | 4479 | uint16_t *typep) |
5deff5aa | 4480 | { |
9a4eddbb | 4481 | enum ofperr error; |
5deff5aa | 4482 | |
9a4eddbb BP |
4483 | error = ofputil_pull_property(msg, payload, typep); |
4484 | if (payload && !error) { | |
4485 | ofpbuf_pull(payload, sizeof(struct ofp_prop_header)); | |
5deff5aa | 4486 | } |
9a4eddbb | 4487 | return error; |
5deff5aa AW |
4488 | } |
4489 | ||
4490 | static enum ofperr | |
08d1e234 BP |
4491 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4492 | uint64_t *ofpacts) | |
5deff5aa | 4493 | { |
08d1e234 | 4494 | uint32_t types = 0; |
5deff5aa | 4495 | |
1f317cb5 | 4496 | while (ofpbuf_size(payload) > 0) { |
08d1e234 BP |
4497 | uint16_t type; |
4498 | enum ofperr error; | |
4499 | ||
72b25867 | 4500 | error = ofputil_pull_property__(payload, NULL, 1, &type); |
5deff5aa AW |
4501 | if (error) { |
4502 | return error; | |
4503 | } | |
08d1e234 BP |
4504 | if (type < CHAR_BIT * sizeof types) { |
4505 | types |= 1u << type; | |
5deff5aa AW |
4506 | } |
4507 | } | |
08d1e234 BP |
4508 | |
4509 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4510 | return 0; |
4511 | } | |
4512 | ||
4513 | static enum ofperr | |
4514 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4515 | { | |
4516 | *insts = 0; | |
1f317cb5 | 4517 | while (ofpbuf_size(payload) > 0) { |
5deff5aa AW |
4518 | enum ovs_instruction_type inst; |
4519 | enum ofperr error; | |
4520 | uint16_t ofpit; | |
4521 | ||
72b25867 BP |
4522 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4523 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4524 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4525 | * and do not mention any padding before the first instruction ID. | |
4526 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4527 | * aligned on an odd 4-byte boundary.) | |
4528 | * | |
4529 | * Anyway, we just assume they're all glommed together on byte | |
4530 | * boundaries. */ | |
4531 | error = ofputil_pull_property__(payload, NULL, 1, &ofpit); | |
5deff5aa AW |
4532 | if (error) { |
4533 | return error; | |
4534 | } | |
4535 | ||
4536 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4537 | if (!error) { | |
4538 | *insts |= 1u << inst; | |
4539 | } else if (!loose) { | |
4540 | return error; | |
4541 | } | |
4542 | } | |
4543 | return 0; | |
4544 | } | |
4545 | ||
4546 | static enum ofperr | |
4547 | parse_table_features_next_table(struct ofpbuf *payload, | |
4548 | unsigned long int *next_tables) | |
4549 | { | |
4550 | size_t i; | |
4551 | ||
4552 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
1f317cb5 PS |
4553 | for (i = 0; i < ofpbuf_size(payload); i++) { |
4554 | uint8_t id = ((const uint8_t *) ofpbuf_data(payload))[i]; | |
5deff5aa | 4555 | if (id >= 255) { |
9a4eddbb | 4556 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4557 | } |
4558 | bitmap_set1(next_tables, id); | |
4559 | } | |
4560 | return 0; | |
4561 | } | |
4562 | ||
4563 | static enum ofperr | |
4564 | parse_oxm(struct ofpbuf *b, bool loose, | |
4565 | const struct mf_field **fieldp, bool *hasmask) | |
4566 | { | |
4567 | ovs_be32 *oxmp; | |
4568 | uint32_t oxm; | |
4569 | ||
4570 | oxmp = ofpbuf_try_pull(b, sizeof *oxmp); | |
4571 | if (!oxmp) { | |
9a4eddbb | 4572 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4573 | } |
4574 | oxm = ntohl(*oxmp); | |
4575 | ||
4576 | /* Determine '*hasmask'. If 'oxm' is masked, convert it to the equivalent | |
4577 | * unmasked version, because the table of OXM fields we support only has | |
4578 | * masked versions of fields that we support with masks, but we should be | |
4579 | * able to parse the masked versions of those here. */ | |
4580 | *hasmask = NXM_HASMASK(oxm); | |
4581 | if (*hasmask) { | |
4582 | if (NXM_LENGTH(oxm) & 1) { | |
9a4eddbb | 4583 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4584 | } |
4585 | oxm = NXM_HEADER(NXM_VENDOR(oxm), NXM_FIELD(oxm), NXM_LENGTH(oxm) / 2); | |
4586 | } | |
4587 | ||
4588 | *fieldp = mf_from_nxm_header(oxm); | |
4589 | if (!*fieldp) { | |
4590 | log_property(loose, "unknown OXM field %#"PRIx32, ntohl(*oxmp)); | |
4591 | } | |
4592 | return *fieldp ? 0 : OFPERR_OFPBMC_BAD_FIELD; | |
4593 | } | |
4594 | ||
4595 | static enum ofperr | |
4596 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4597 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4598 | { |
abadfcb0 BP |
4599 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4600 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4601 | |
1f317cb5 | 4602 | while (ofpbuf_size(payload) > 0) { |
5deff5aa AW |
4603 | const struct mf_field *field; |
4604 | enum ofperr error; | |
4605 | bool hasmask; | |
4606 | ||
4607 | error = parse_oxm(payload, loose, &field, &hasmask); | |
4608 | if (!error) { | |
abadfcb0 | 4609 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4610 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4611 | return error; | |
4612 | } | |
4613 | } | |
4614 | if (exactp) { | |
4615 | *exactp = exact; | |
abadfcb0 | 4616 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4617 | return OFPERR_OFPBMC_BAD_MASK; |
4618 | } | |
4619 | if (maskedp) { | |
4620 | *maskedp = masked; | |
abadfcb0 | 4621 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4622 | return OFPERR_OFPBMC_BAD_MASK; |
4623 | } | |
4624 | return 0; | |
4625 | } | |
4626 | ||
4627 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4628 | * ofputil_table_features in 'tf'. | |
4629 | * | |
4630 | * If 'loose' is true, this function ignores properties and values that it does | |
4631 | * not understand, as a controller would want to do when interpreting | |
4632 | * capabilities provided by a switch. If 'loose' is false, this function | |
4633 | * treats unknown properties and values as an error, as a switch would want to | |
4634 | * do when interpreting a configuration request made by a controller. | |
4635 | * | |
4636 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4637 | * this function multiple times for a single 'msg' iterates through the tables | |
4638 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4639 | * and not modify them between calls. | |
4640 | * | |
4641 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4642 | * a positive "enum ofperr" value. */ | |
4643 | int | |
4644 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4645 | struct ofputil_table_features *tf, bool loose) | |
4646 | { | |
08d1e234 | 4647 | const struct ofp_header *oh; |
5deff5aa | 4648 | struct ofp13_table_features *otf; |
ae665de5 | 4649 | struct ofpbuf properties; |
5deff5aa AW |
4650 | unsigned int len; |
4651 | ||
3c1bb396 BP |
4652 | memset(tf, 0, sizeof *tf); |
4653 | ||
cf3b7538 | 4654 | if (!msg->frame) { |
5deff5aa AW |
4655 | ofpraw_pull_assert(msg); |
4656 | } | |
08d1e234 | 4657 | oh = ofpbuf_l2(msg); |
5deff5aa | 4658 | |
1f317cb5 | 4659 | if (!ofpbuf_size(msg)) { |
5deff5aa AW |
4660 | return EOF; |
4661 | } | |
4662 | ||
1f317cb5 | 4663 | if (ofpbuf_size(msg) < sizeof *otf) { |
9a4eddbb | 4664 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4665 | } |
4666 | ||
1f317cb5 | 4667 | otf = ofpbuf_data(msg); |
5deff5aa | 4668 | len = ntohs(otf->length); |
1f317cb5 | 4669 | if (len < sizeof *otf || len % 8 || len > ofpbuf_size(msg)) { |
9a4eddbb | 4670 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4671 | } |
ae665de5 BP |
4672 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4673 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4674 | |
4675 | tf->table_id = otf->table_id; | |
4676 | if (tf->table_id == OFPTT_ALL) { | |
4677 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4678 | } | |
4679 | ||
4680 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4681 | tf->metadata_match = otf->metadata_match; | |
4682 | tf->metadata_write = otf->metadata_write; | |
3c1bb396 | 4683 | tf->miss_config = ofputil_table_miss_from_config(otf->config, oh->version); |
5deff5aa AW |
4684 | tf->max_entries = ntohl(otf->max_entries); |
4685 | ||
ae665de5 | 4686 | while (ofpbuf_size(&properties) > 0) { |
5deff5aa AW |
4687 | struct ofpbuf payload; |
4688 | enum ofperr error; | |
4689 | uint16_t type; | |
4690 | ||
ae665de5 | 4691 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4692 | if (error) { |
4693 | return error; | |
4694 | } | |
4695 | ||
4696 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4697 | case OFPTFPT13_INSTRUCTIONS: | |
4698 | error = parse_instruction_ids(&payload, loose, | |
4699 | &tf->nonmiss.instructions); | |
4700 | break; | |
4701 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4702 | error = parse_instruction_ids(&payload, loose, | |
4703 | &tf->miss.instructions); | |
4704 | break; | |
4705 | ||
4706 | case OFPTFPT13_NEXT_TABLES: | |
4707 | error = parse_table_features_next_table(&payload, | |
4708 | tf->nonmiss.next); | |
4709 | break; | |
4710 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4711 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4712 | break; | |
4713 | ||
4714 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4715 | error = parse_action_bitmap(&payload, oh->version, |
4716 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4717 | break; |
4718 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4719 | error = parse_action_bitmap(&payload, oh->version, |
4720 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4721 | break; |
4722 | ||
4723 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4724 | error = parse_action_bitmap(&payload, oh->version, |
4725 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4726 | break; |
4727 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4728 | error = parse_action_bitmap(&payload, oh->version, |
4729 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4730 | break; |
4731 | ||
4732 | case OFPTFPT13_MATCH: | |
4733 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4734 | break; | |
4735 | case OFPTFPT13_WILDCARDS: | |
4736 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4737 | break; | |
4738 | ||
4739 | case OFPTFPT13_WRITE_SETFIELD: | |
4740 | error = parse_oxms(&payload, loose, | |
4741 | &tf->nonmiss.write.set_fields, NULL); | |
4742 | break; | |
4743 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4744 | error = parse_oxms(&payload, loose, | |
4745 | &tf->miss.write.set_fields, NULL); | |
4746 | break; | |
4747 | case OFPTFPT13_APPLY_SETFIELD: | |
4748 | error = parse_oxms(&payload, loose, | |
4749 | &tf->nonmiss.apply.set_fields, NULL); | |
4750 | break; | |
4751 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4752 | error = parse_oxms(&payload, loose, | |
4753 | &tf->miss.apply.set_fields, NULL); | |
4754 | break; | |
4755 | ||
4756 | case OFPTFPT13_EXPERIMENTER: | |
4757 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb BP |
4758 | default: |
4759 | log_property(loose, "unknown table features property %"PRIu16, | |
4760 | type); | |
4761 | error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE; | |
5deff5aa AW |
4762 | break; |
4763 | } | |
4764 | if (error) { | |
4765 | return error; | |
4766 | } | |
4767 | } | |
4768 | ||
4769 | /* Fix inconsistencies: | |
4770 | * | |
e7227821 BP |
4771 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4772 | * fields are matchable. | |
5deff5aa AW |
4773 | * |
4774 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4775 | * that is arbitrarily maskable can be wildcarded entirely. |
4776 | * | |
4777 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4778 | * must be matchable for it to be meaningfully wildcarded. */ | |
4779 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4780 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4781 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4782 | |
4783 | return 0; | |
4784 | } | |
4785 | ||
4786 | /* Encodes and returns a request to obtain the table features of a switch. | |
4787 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4788 | struct ofpbuf * | |
4789 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4790 | { | |
4791 | struct ofpbuf *request = NULL; | |
4792 | ||
4793 | switch (ofp_version) { | |
4794 | case OFP10_VERSION: | |
4795 | case OFP11_VERSION: | |
4796 | case OFP12_VERSION: | |
4797 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4798 | "(\'-O OpenFlow13\')"); | |
4799 | case OFP13_VERSION: | |
4800 | case OFP14_VERSION: | |
42dccab5 | 4801 | case OFP15_VERSION: |
5deff5aa AW |
4802 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4803 | ofp_version, 0); | |
4804 | break; | |
4805 | default: | |
4806 | OVS_NOT_REACHED(); | |
4807 | } | |
4808 | ||
4809 | return request; | |
4810 | } | |
4811 | ||
3c4e10fb BP |
4812 | static void |
4813 | put_fields_property(struct ofpbuf *reply, | |
4814 | const struct mf_bitmap *fields, | |
4815 | const struct mf_bitmap *masks, | |
4816 | enum ofp13_table_feature_prop_type property, | |
4817 | enum ofp_version version) | |
4818 | { | |
4819 | size_t start_ofs; | |
4820 | int field; | |
4821 | ||
4822 | start_ofs = start_property(reply, property); | |
4823 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { | |
4824 | uint32_t h_oxm = mf_oxm_header(field, version); | |
4825 | ovs_be32 n_oxm; | |
4826 | ||
4827 | if (masks && bitmap_is_set(masks->bm, field)) { | |
4828 | h_oxm = NXM_MAKE_WILD_HEADER(h_oxm); | |
4829 | } | |
4830 | ||
4831 | n_oxm = htonl(h_oxm); | |
4832 | ofpbuf_put(reply, &n_oxm, sizeof n_oxm); | |
4833 | } | |
4834 | end_property(reply, start_ofs); | |
4835 | } | |
4836 | ||
4837 | static void | |
4838 | put_table_action_features(struct ofpbuf *reply, | |
4839 | const struct ofputil_table_action_features *taf, | |
4840 | enum ofp13_table_feature_prop_type actions_type, | |
4841 | enum ofp13_table_feature_prop_type set_fields_type, | |
4842 | int miss_offset, enum ofp_version version) | |
4843 | { | |
4844 | size_t start_ofs; | |
4845 | ||
4846 | start_ofs = start_property(reply, actions_type + miss_offset); | |
4847 | put_bitmap_properties(reply, | |
4848 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4849 | version))); | |
4850 | end_property(reply, start_ofs); | |
4851 | ||
4852 | put_fields_property(reply, &taf->set_fields, NULL, | |
4853 | set_fields_type + miss_offset, version); | |
4854 | } | |
4855 | ||
4856 | static void | |
4857 | put_table_instruction_features( | |
4858 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4859 | int miss_offset, enum ofp_version version) | |
4860 | { | |
4861 | size_t start_ofs; | |
4862 | uint8_t table_id; | |
4863 | ||
4864 | start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset); | |
4865 | put_bitmap_properties(reply, | |
4866 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4867 | version))); | |
4868 | end_property(reply, start_ofs); | |
4869 | ||
4870 | start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset); | |
4871 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { | |
4872 | ofpbuf_put(reply, &table_id, 1); | |
4873 | } | |
4874 | end_property(reply, start_ofs); | |
4875 | ||
4876 | put_table_action_features(reply, &tif->write, | |
4877 | OFPTFPT13_WRITE_ACTIONS, | |
4878 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4879 | put_table_action_features(reply, &tif->apply, | |
4880 | OFPTFPT13_APPLY_ACTIONS, | |
4881 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4882 | } | |
4883 | ||
4884 | void | |
4885 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
4886 | struct list *replies) | |
4887 | { | |
4888 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4889 | enum ofp_version version = ofpmp_version(replies); | |
4890 | size_t start_ofs = ofpbuf_size(reply); | |
4891 | struct ofp13_table_features *otf; | |
4892 | ||
4893 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4894 | otf->table_id = tf->table_id; | |
4895 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4896 | otf->metadata_match = tf->metadata_match; | |
4897 | otf->metadata_write = tf->metadata_write; | |
4898 | otf->config = ofputil_table_miss_to_config(tf->miss_config, version); | |
4899 | otf->max_entries = htonl(tf->max_entries); | |
4900 | ||
4901 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4902 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4903 | ||
4904 | put_fields_property(reply, &tf->match, &tf->mask, | |
4905 | OFPTFPT13_MATCH, version); | |
4906 | put_fields_property(reply, &tf->wildcard, NULL, | |
4907 | OFPTFPT13_WILDCARDS, version); | |
4908 | ||
4909 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
4910 | otf->length = htons(ofpbuf_size(reply) - start_ofs); | |
4911 | ofpmp_postappend(replies, start_ofs); | |
4912 | } | |
4913 | ||
918f2b82 AZ |
4914 | /* ofputil_table_mod */ |
4915 | ||
3c1bb396 BP |
4916 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
4917 | * table configuration (a table mod, table stats, or table features message), | |
4918 | * returns the table miss configuration that it specifies. */ | |
4919 | static enum ofputil_table_miss | |
4920 | ofputil_table_miss_from_config(ovs_be32 config_, enum ofp_version version) | |
4921 | { | |
4922 | uint32_t config = ntohl(config_); | |
4923 | ||
4924 | if (version < OFP13_VERSION) { | |
4925 | switch (config & OFPTC11_TABLE_MISS_MASK) { | |
4926 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
4927 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4928 | ||
4929 | case OFPTC11_TABLE_MISS_CONTINUE: | |
4930 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
4931 | ||
4932 | case OFPTC11_TABLE_MISS_DROP: | |
4933 | return OFPUTIL_TABLE_MISS_DROP; | |
4934 | ||
4935 | default: | |
4936 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
4937 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
4938 | } | |
4939 | } else { | |
4940 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
4941 | } | |
4942 | } | |
4943 | ||
4944 | /* Given a table miss configuration, returns the corresponding OpenFlow table | |
4945 | * configuration for use in an OpenFlow message of the given 'version'. */ | |
4946 | ovs_be32 | |
4947 | ofputil_table_miss_to_config(enum ofputil_table_miss miss, | |
4948 | enum ofp_version version) | |
4949 | { | |
4950 | if (version < OFP13_VERSION) { | |
4951 | switch (miss) { | |
4952 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
4953 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
4954 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
4955 | ||
4956 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
4957 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
4958 | ||
4959 | case OFPUTIL_TABLE_MISS_DROP: | |
4960 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
4961 | ||
4962 | default: | |
4963 | OVS_NOT_REACHED(); | |
4964 | } | |
4965 | } else { | |
4966 | return htonl(0); | |
4967 | } | |
4968 | } | |
4969 | ||
918f2b82 AZ |
4970 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
4971 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4972 | enum ofperr | |
4973 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
4974 | struct ofputil_table_mod *pm) | |
4975 | { | |
4976 | enum ofpraw raw; | |
4977 | struct ofpbuf b; | |
4978 | ||
4979 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4980 | raw = ofpraw_pull_assert(&b); | |
4981 | ||
4982 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
1f317cb5 | 4983 | const struct ofp11_table_mod *otm = ofpbuf_data(&b); |
918f2b82 AZ |
4984 | |
4985 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4986 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4987 | oh->version); | |
37ab26e8 BP |
4988 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
4989 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
4990 | ||
4991 | pm->table_id = otm->table_id; | |
3c1bb396 BP |
4992 | pm->miss_config = ofputil_table_miss_from_config(otm->config, |
4993 | oh->version); | |
37ab26e8 BP |
4994 | /* We do not understand any properties yet, so we do not bother |
4995 | * parsing them. */ | |
918f2b82 AZ |
4996 | } else { |
4997 | return OFPERR_OFPBRC_BAD_TYPE; | |
4998 | } | |
4999 | ||
5000 | return 0; | |
5001 | } | |
5002 | ||
5003 | /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow | |
5004 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
5005 | * owned by the caller. */ | |
5006 | struct ofpbuf * | |
5007 | ofputil_encode_table_mod(const struct ofputil_table_mod *pm, | |
5008 | enum ofputil_protocol protocol) | |
5009 | { | |
5010 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5011 | struct ofpbuf *b; | |
5012 | ||
5013 | switch (ofp_version) { | |
5014 | case OFP10_VERSION: { | |
5015 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5016 | "(\'-O OpenFlow11\')"); | |
5017 | break; | |
5018 | } | |
5019 | case OFP11_VERSION: | |
5020 | case OFP12_VERSION: | |
5021 | case OFP13_VERSION: { | |
5022 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5023 | |
918f2b82 AZ |
5024 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5025 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
5026 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
5027 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
5028 | ofp_version); | |
918f2b82 AZ |
5029 | break; |
5030 | } | |
42dccab5 BP |
5031 | case OFP14_VERSION: |
5032 | case OFP15_VERSION: { | |
37ab26e8 BP |
5033 | struct ofp14_table_mod *otm; |
5034 | ||
5035 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5036 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
5037 | otm->table_id = pm->table_id; | |
3c1bb396 BP |
5038 | otm->config = ofputil_table_miss_to_config(pm->miss_config, |
5039 | ofp_version); | |
c37c0382 | 5040 | break; |
37ab26e8 | 5041 | } |
2e3fa633 | 5042 | default: |
428b2edd | 5043 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5044 | } |
5045 | ||
5046 | return b; | |
5047 | } | |
2b07c8b1 | 5048 | \f |
6ea4776b JR |
5049 | /* ofputil_role_request */ |
5050 | ||
5051 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5052 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5053 | * OFPERR_* value. */ | |
5054 | enum ofperr | |
5055 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5056 | struct ofputil_role_request *rr) | |
5057 | { | |
6ea4776b JR |
5058 | struct ofpbuf b; |
5059 | enum ofpraw raw; | |
5060 | ||
6ea4776b JR |
5061 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5062 | raw = ofpraw_pull_assert(&b); | |
5063 | ||
f4f1ea7e BP |
5064 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5065 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6b8c377a | 5066 | const struct ofp12_role_request *orr = ofpbuf_l3(&b); |
6ea4776b | 5067 | |
f4f1ea7e BP |
5068 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5069 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5070 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5071 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5072 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5073 | } |
5074 | ||
f4f1ea7e | 5075 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5076 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5077 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5078 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5079 | rr->have_generation_id = false; |
5080 | rr->generation_id = 0; | |
5081 | } else { | |
5082 | rr->have_generation_id = true; | |
5083 | rr->generation_id = ntohll(orr->generation_id); | |
5084 | } | |
5085 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5086 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6b8c377a | 5087 | const struct nx_role_request *nrr = ofpbuf_l3(&b); |
f4f1ea7e BP |
5088 | |
5089 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5090 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5091 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5092 | ||
5093 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5094 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5095 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5096 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5097 | } | |
6ea4776b | 5098 | |
f4f1ea7e BP |
5099 | rr->role = ntohl(nrr->role) + 1; |
5100 | rr->have_generation_id = false; | |
5101 | rr->generation_id = 0; | |
5102 | } else { | |
428b2edd | 5103 | OVS_NOT_REACHED(); |
6ea4776b JR |
5104 | } |
5105 | ||
6ea4776b JR |
5106 | return 0; |
5107 | } | |
5108 | ||
5109 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5110 | * buffer owned by the caller. */ | |
5111 | struct ofpbuf * | |
5112 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5113 | const struct ofputil_role_request *rr) |
6ea4776b | 5114 | { |
6ea4776b | 5115 | struct ofpbuf *buf; |
6ea4776b JR |
5116 | enum ofpraw raw; |
5117 | ||
f4f1ea7e | 5118 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5119 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5120 | struct ofp12_role_request *orr; |
6ea4776b | 5121 | |
f4f1ea7e BP |
5122 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5123 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5124 | |
147cc9d3 BP |
5125 | orr->role = htonl(rr->role); |
5126 | orr->generation_id = htonll(rr->have_generation_id | |
5127 | ? rr->generation_id | |
5128 | : UINT64_MAX); | |
f4f1ea7e BP |
5129 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5130 | struct nx_role_request *nrr; | |
5131 | ||
5132 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5133 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5134 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5135 | ||
5136 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5137 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5138 | nrr->role = htonl(rr->role - 1); | |
5139 | } else { | |
428b2edd | 5140 | OVS_NOT_REACHED(); |
6ea4776b | 5141 | } |
6ea4776b JR |
5142 | |
5143 | return buf; | |
5144 | } | |
5145 | \f | |
6751a4b4 BP |
5146 | /* Encodes "role status" message 'status' for sending in the given |
5147 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5148 | * otherwise a null pointer. */ | |
00467f73 AC |
5149 | struct ofpbuf * |
5150 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5151 | enum ofputil_protocol protocol) | |
5152 | { | |
00467f73 | 5153 | enum ofp_version version; |
00467f73 AC |
5154 | |
5155 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5156 | if (version >= OFP14_VERSION) { |
5157 | struct ofp14_role_status *rstatus; | |
5158 | struct ofpbuf *buf; | |
5159 | ||
5160 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5161 | 0); | |
5162 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5163 | rstatus->role = htonl(status->role); | |
5164 | rstatus->reason = status->reason; | |
5165 | rstatus->generation_id = htonll(status->generation_id); | |
5166 | ||
5167 | return buf; | |
5168 | } else { | |
5169 | return NULL; | |
5170 | } | |
00467f73 AC |
5171 | } |
5172 | ||
5173 | enum ofperr | |
5174 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5175 | struct ofputil_role_status *rs) | |
5176 | { | |
5177 | struct ofpbuf b; | |
5178 | enum ofpraw raw; | |
5179 | const struct ofp14_role_status *r; | |
5180 | ||
5181 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5182 | raw = ofpraw_pull_assert(&b); | |
5183 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5184 | ||
6b8c377a | 5185 | r = ofpbuf_l3(&b); |
00467f73 AC |
5186 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5187 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5188 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5189 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5190 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5191 | } | |
5192 | ||
5193 | rs->role = ntohl(r->role); | |
5194 | rs->generation_id = ntohll(r->generation_id); | |
5195 | rs->reason = r->reason; | |
5196 | ||
5197 | return 0; | |
5198 | } | |
5199 | ||
307975da SH |
5200 | /* Table stats. */ |
5201 | ||
3c1bb396 BP |
5202 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5203 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5204 | * that contains both kinds of fields. */ | |
5205 | static struct mf_bitmap | |
5206 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5207 | { | |
5208 | struct mf_bitmap wc = features->match; | |
5209 | bitmap_not(wc.bm, MFF_N_IDS); | |
5210 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5211 | return wc; | |
5212 | } | |
5213 | ||
5214 | struct ofp10_wc_map { | |
5215 | enum ofp10_flow_wildcards wc10; | |
5216 | enum mf_field_id mf; | |
5217 | }; | |
5218 | ||
5219 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5220 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5221 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5222 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5223 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5224 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5225 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5226 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5227 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5228 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5229 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5230 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5231 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5232 | }; | |
5233 | ||
5234 | static ovs_be32 | |
5235 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5236 | { | |
5237 | const struct ofp10_wc_map *p; | |
5238 | uint32_t wc10 = 0; | |
5239 | ||
5240 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5241 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5242 | wc10 |= p->wc10; | |
5243 | } | |
5244 | } | |
5245 | return htonl(wc10); | |
5246 | } | |
5247 | ||
5248 | static struct mf_bitmap | |
5249 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5250 | { | |
5251 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5252 | const struct ofp10_wc_map *p; | |
5253 | uint32_t wc10 = ntohl(wc10_); | |
5254 | ||
5255 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5256 | if (wc10 & p->wc10) { | |
5257 | bitmap_set1(fields.bm, p->mf); | |
5258 | } | |
5259 | } | |
5260 | return fields; | |
5261 | } | |
5262 | ||
307975da | 5263 | static void |
3c1bb396 BP |
5264 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5265 | const struct ofputil_table_features *features, | |
307975da SH |
5266 | struct ofpbuf *buf) |
5267 | { | |
3c1bb396 | 5268 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5269 | struct ofp10_table_stats *out; |
307975da | 5270 | |
3bdc692b | 5271 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5272 | out->table_id = features->table_id; |
5273 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5274 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5275 | out->max_entries = htonl(features->max_entries); | |
5276 | out->active_count = htonl(stats->active_count); | |
5277 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5278 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5279 | } | |
5280 | ||
5281 | struct ofp11_wc_map { | |
5282 | enum ofp11_flow_match_fields wc11; | |
5283 | enum mf_field_id mf; | |
5284 | }; | |
5285 | ||
5286 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5287 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5288 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5289 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5290 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5291 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5292 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5293 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5294 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5295 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5296 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5297 | /* I don't know what OFPFMF11_TYPE means. */ | |
5298 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5299 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5300 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5301 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5302 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5303 | }; | |
5304 | ||
5305 | static ovs_be32 | |
5306 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5307 | { | |
5308 | const struct ofp11_wc_map *p; | |
5309 | uint32_t wc11 = 0; | |
5310 | ||
5311 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5312 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5313 | wc11 |= p->wc11; | |
307975da SH |
5314 | } |
5315 | } | |
3c1bb396 | 5316 | return htonl(wc11); |
307975da SH |
5317 | } |
5318 | ||
3c1bb396 BP |
5319 | static struct mf_bitmap |
5320 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5321 | { | |
5322 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5323 | const struct ofp11_wc_map *p; | |
5324 | uint32_t wc11 = ntohl(wc11_); | |
5325 | ||
5326 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5327 | if (wc11 & p->wc11) { | |
5328 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5329 | } |
5330 | } | |
3c1bb396 | 5331 | return fields; |
307975da SH |
5332 | } |
5333 | ||
5334 | static void | |
3c1bb396 BP |
5335 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5336 | const struct ofputil_table_features *features, | |
307975da SH |
5337 | struct ofpbuf *buf) |
5338 | { | |
3c1bb396 | 5339 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5340 | struct ofp11_table_stats *out; |
5341 | ||
3bdc692b | 5342 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5343 | out->table_id = features->table_id; |
5344 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5345 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5346 | out->match = mf_bitmap_to_of11(&features->match); | |
5347 | out->instructions = ovsinst_bitmap_to_openflow( | |
5348 | features->nonmiss.instructions, OFP11_VERSION); | |
5349 | out->write_actions = ofpact_bitmap_to_openflow( | |
5350 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5351 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5352 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5353 | out->config = htonl(features->miss_config); | |
5354 | out->max_entries = htonl(features->max_entries); | |
5355 | out->active_count = htonl(stats->active_count); | |
5356 | out->lookup_count = htonll(stats->lookup_count); | |
5357 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5358 | } |
5359 | ||
5360 | static ovs_be64 | |
5361 | mf_bitmap_to_oxm_bitmap(const struct mf_bitmap *fields, | |
5362 | enum ofp_version version) | |
5363 | { | |
5364 | uint64_t oxm_bitmap = 0; | |
5365 | int i; | |
5366 | ||
5367 | BITMAP_FOR_EACH_1 (i, MFF_N_IDS, fields->bm) { | |
5368 | uint32_t oxm = mf_oxm_header(i, version); | |
5369 | uint32_t vendor = NXM_VENDOR(oxm); | |
5370 | int field = NXM_FIELD(oxm); | |
5371 | ||
5372 | if (vendor == OFPXMC12_OPENFLOW_BASIC && field < 64) { | |
5373 | oxm_bitmap |= UINT64_C(1) << field; | |
5374 | } | |
5375 | } | |
5376 | return htonll(oxm_bitmap); | |
307975da SH |
5377 | } |
5378 | ||
3c1bb396 BP |
5379 | static struct mf_bitmap |
5380 | mf_bitmap_from_oxm_bitmap(ovs_be64 oxm_bitmap, enum ofp_version version) | |
5381 | { | |
5382 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5383 | ||
5384 | for (enum mf_field_id id = 0; id < MFF_N_IDS; id++) { | |
5385 | const struct mf_field *f = mf_from_id(id); | |
5386 | uint32_t oxm = f->oxm_header; | |
5387 | uint32_t vendor = NXM_VENDOR(oxm); | |
5388 | int field = NXM_FIELD(oxm); | |
5389 | ||
5390 | if (version >= f->oxm_version | |
5391 | && vendor == OFPXMC12_OPENFLOW_BASIC | |
5392 | && field < 64 | |
5393 | && oxm_bitmap & htonll(UINT64_C(1) << field)) { | |
5394 | bitmap_set1(fields.bm, id); | |
5395 | } | |
5396 | } | |
5397 | return fields; | |
5398 | } | |
5399 | ||
6240624b | 5400 | static void |
3c1bb396 BP |
5401 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5402 | const struct ofputil_table_features *features, | |
6240624b BP |
5403 | struct ofpbuf *buf) |
5404 | { | |
08d1e234 | 5405 | struct ofp12_table_stats *out; |
6240624b | 5406 | |
08d1e234 | 5407 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5408 | out->table_id = features->table_id; |
5409 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5410 | out->match = mf_bitmap_to_oxm_bitmap(&features->match, OFP12_VERSION); | |
5411 | out->wildcards = mf_bitmap_to_oxm_bitmap(&features->wildcard, | |
5412 | OFP12_VERSION); | |
5413 | out->write_actions = ofpact_bitmap_to_openflow( | |
5414 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5415 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5416 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
5417 | out->write_setfields = mf_bitmap_to_oxm_bitmap( | |
5418 | &features->nonmiss.write.set_fields, OFP12_VERSION); | |
5419 | out->apply_setfields = mf_bitmap_to_oxm_bitmap( | |
5420 | &features->nonmiss.apply.set_fields, OFP12_VERSION); | |
5421 | out->metadata_match = features->metadata_match; | |
5422 | out->metadata_write = features->metadata_write; | |
5423 | out->instructions = ovsinst_bitmap_to_openflow( | |
5424 | features->nonmiss.instructions, OFP12_VERSION); | |
5425 | out->config = ofputil_table_miss_to_config(features->miss_config, | |
5426 | OFP12_VERSION); | |
5427 | out->max_entries = htonl(features->max_entries); | |
5428 | out->active_count = htonl(stats->active_count); | |
5429 | out->lookup_count = htonll(stats->lookup_count); | |
5430 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5431 | } |
5432 | ||
2e1ae200 | 5433 | static void |
3c1bb396 | 5434 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5435 | struct ofpbuf *buf) |
5436 | { | |
5437 | struct ofp13_table_stats *out; | |
5438 | ||
3c1bb396 BP |
5439 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5440 | out->table_id = stats->table_id; | |
5441 | out->active_count = htonl(stats->active_count); | |
5442 | out->lookup_count = htonll(stats->lookup_count); | |
5443 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5444 | } |
5445 | ||
307975da | 5446 | struct ofpbuf * |
3c1bb396 | 5447 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5448 | { |
3c1bb396 BP |
5449 | return ofpraw_alloc_stats_reply(request, 0); |
5450 | } | |
307975da | 5451 | |
3c1bb396 BP |
5452 | void |
5453 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5454 | const struct ofputil_table_stats *stats, | |
5455 | const struct ofputil_table_features *features) | |
5456 | { | |
5457 | struct ofp_header *oh = ofpbuf_l2(reply); | |
307975da | 5458 | |
3c1bb396 | 5459 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5460 | |
3c1bb396 BP |
5461 | switch ((enum ofp_version) oh->version) { |
5462 | case OFP10_VERSION: | |
5463 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5464 | break; | |
307975da | 5465 | |
3c1bb396 BP |
5466 | case OFP11_VERSION: |
5467 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5468 | break; | |
307975da | 5469 | |
3c1bb396 BP |
5470 | case OFP12_VERSION: |
5471 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5472 | break; | |
2e1ae200 | 5473 | |
3c1bb396 BP |
5474 | case OFP13_VERSION: |
5475 | case OFP14_VERSION: | |
5476 | case OFP15_VERSION: | |
5477 | ofputil_put_ofp13_table_stats(stats, reply); | |
5478 | break; | |
5479 | ||
5480 | default: | |
5481 | OVS_NOT_REACHED(); | |
307975da | 5482 | } |
3c1bb396 | 5483 | } |
307975da | 5484 | |
3c1bb396 BP |
5485 | static int |
5486 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5487 | struct ofputil_table_stats *stats, | |
5488 | struct ofputil_table_features *features) | |
5489 | { | |
5490 | struct ofp10_table_stats *ots; | |
5491 | ||
5492 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5493 | if (!ots) { | |
5494 | return OFPERR_OFPBRC_BAD_LEN; | |
5495 | } | |
5496 | ||
5497 | features->table_id = ots->table_id; | |
5498 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5499 | features->max_entries = ntohl(ots->max_entries); | |
5500 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
5501 | ||
5502 | stats->table_id = ots->table_id; | |
5503 | stats->active_count = ntohl(ots->active_count); | |
5504 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
5505 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
5506 | ||
5507 | return 0; | |
5508 | } | |
5509 | ||
5510 | static int | |
5511 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
5512 | struct ofputil_table_stats *stats, | |
5513 | struct ofputil_table_features *features) | |
5514 | { | |
5515 | struct ofp11_table_stats *ots; | |
5516 | ||
5517 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5518 | if (!ots) { | |
5519 | return OFPERR_OFPBRC_BAD_LEN; | |
5520 | } | |
5521 | ||
5522 | features->table_id = ots->table_id; | |
5523 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5524 | features->max_entries = ntohl(ots->max_entries); | |
5525 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5526 | ots->instructions, OFP11_VERSION); | |
5527 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5528 | ots->write_actions, OFP11_VERSION); | |
5529 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5530 | ots->write_actions, OFP11_VERSION); | |
5531 | features->miss = features->nonmiss; | |
5532 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5533 | OFP11_VERSION); | |
5534 | features->match = mf_bitmap_from_of11(ots->match); | |
5535 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
5536 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5537 | ||
5538 | stats->table_id = ots->table_id; | |
5539 | stats->active_count = ntohl(ots->active_count); | |
5540 | stats->lookup_count = ntohll(ots->lookup_count); | |
5541 | stats->matched_count = ntohll(ots->matched_count); | |
5542 | ||
5543 | return 0; | |
5544 | } | |
5545 | ||
5546 | static int | |
5547 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
5548 | struct ofputil_table_stats *stats, | |
5549 | struct ofputil_table_features *features) | |
5550 | { | |
5551 | struct ofp12_table_stats *ots; | |
5552 | ||
5553 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5554 | if (!ots) { | |
5555 | return OFPERR_OFPBRC_BAD_LEN; | |
5556 | } | |
5557 | ||
5558 | features->table_id = ots->table_id; | |
5559 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5560 | features->metadata_match = ots->metadata_match; | |
5561 | features->metadata_write = ots->metadata_write; | |
5562 | features->miss_config = ofputil_table_miss_from_config(ots->config, | |
5563 | OFP12_VERSION); | |
5564 | features->max_entries = ntohl(ots->max_entries); | |
5565 | ||
5566 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5567 | ots->instructions, OFP12_VERSION); | |
5568 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5569 | ots->write_actions, OFP12_VERSION); | |
5570 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5571 | ots->apply_actions, OFP12_VERSION); | |
5572 | features->nonmiss.write.set_fields = mf_bitmap_from_oxm_bitmap( | |
5573 | ots->write_setfields, OFP12_VERSION); | |
5574 | features->nonmiss.apply.set_fields = mf_bitmap_from_oxm_bitmap( | |
5575 | ots->apply_setfields, OFP12_VERSION); | |
5576 | features->miss = features->nonmiss; | |
5577 | ||
5578 | features->match = mf_bitmap_from_oxm_bitmap(ots->match, OFP12_VERSION); | |
5579 | features->wildcard = mf_bitmap_from_oxm_bitmap(ots->wildcards, | |
5580 | OFP12_VERSION); | |
5581 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5582 | ||
5583 | stats->table_id = ots->table_id; | |
5584 | stats->active_count = ntohl(ots->active_count); | |
5585 | stats->lookup_count = ntohll(ots->lookup_count); | |
5586 | stats->matched_count = ntohll(ots->matched_count); | |
5587 | ||
5588 | return 0; | |
5589 | } | |
5590 | ||
5591 | static int | |
5592 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
5593 | struct ofputil_table_stats *stats, | |
5594 | struct ofputil_table_features *features) | |
5595 | { | |
5596 | struct ofp13_table_stats *ots; | |
5597 | ||
5598 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5599 | if (!ots) { | |
5600 | return OFPERR_OFPBRC_BAD_LEN; | |
5601 | } | |
5602 | ||
5603 | features->table_id = ots->table_id; | |
5604 | ||
5605 | stats->table_id = ots->table_id; | |
5606 | stats->active_count = ntohl(ots->active_count); | |
5607 | stats->lookup_count = ntohll(ots->lookup_count); | |
5608 | stats->matched_count = ntohll(ots->matched_count); | |
5609 | ||
5610 | return 0; | |
5611 | } | |
5612 | ||
5613 | int | |
5614 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
5615 | struct ofputil_table_stats *stats, | |
5616 | struct ofputil_table_features *features) | |
5617 | { | |
5618 | const struct ofp_header *oh; | |
5619 | ||
5620 | if (!msg->frame) { | |
5621 | ofpraw_pull_assert(msg); | |
5622 | } | |
5623 | oh = msg->frame; | |
5624 | ||
5625 | if (!ofpbuf_size(msg)) { | |
5626 | return EOF; | |
5627 | } | |
5628 | ||
5629 | memset(stats, 0, sizeof *stats); | |
5630 | memset(features, 0, sizeof *features); | |
5631 | ||
5632 | switch ((enum ofp_version) oh->version) { | |
5633 | case OFP10_VERSION: | |
5634 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
5635 | ||
5636 | case OFP11_VERSION: | |
5637 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
5638 | ||
5639 | case OFP12_VERSION: | |
5640 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
5641 | ||
5642 | case OFP13_VERSION: | |
5643 | case OFP14_VERSION: | |
5644 | case OFP15_VERSION: | |
5645 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
5646 | ||
5647 | default: | |
5648 | OVS_NOT_REACHED(); | |
5649 | } | |
307975da SH |
5650 | } |
5651 | \f | |
2b07c8b1 BP |
5652 | /* ofputil_flow_monitor_request */ |
5653 | ||
5654 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
5655 | * ofputil_flow_monitor_request in 'rq'. | |
5656 | * | |
5657 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
5658 | * message. Calling this function multiple times for a single 'msg' iterates | |
5659 | * through the requests. The caller must initially leave 'msg''s layer | |
5660 | * pointers null and not modify them between calls. | |
5661 | * | |
5662 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
5663 | * otherwise an OFPERR_* value. */ | |
5664 | int | |
5665 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
5666 | struct ofpbuf *msg) | |
5667 | { | |
5668 | struct nx_flow_monitor_request *nfmr; | |
5669 | uint16_t flags; | |
5670 | ||
cf3b7538 | 5671 | if (!msg->frame) { |
982697a4 | 5672 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5673 | } |
5674 | ||
1f317cb5 | 5675 | if (!ofpbuf_size(msg)) { |
2b07c8b1 BP |
5676 | return EOF; |
5677 | } | |
5678 | ||
5679 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
5680 | if (!nfmr) { | |
437d0d22 | 5681 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
1f317cb5 | 5682 | "leftover bytes at end", ofpbuf_size(msg)); |
2b07c8b1 BP |
5683 | return OFPERR_OFPBRC_BAD_LEN; |
5684 | } | |
5685 | ||
5686 | flags = ntohs(nfmr->flags); | |
5687 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
5688 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
5689 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
5690 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
5691 | flags); | |
04f9f286 | 5692 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
5693 | } |
5694 | ||
5695 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
5696 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5697 | } | |
5698 | ||
5699 | rq->id = ntohl(nfmr->id); | |
5700 | rq->flags = flags; | |
4e022ec0 | 5701 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
5702 | rq->table_id = nfmr->table_id; |
5703 | ||
81a76618 | 5704 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
5705 | } |
5706 | ||
5707 | void | |
5708 | ofputil_append_flow_monitor_request( | |
5709 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
5710 | { | |
5711 | struct nx_flow_monitor_request *nfmr; | |
5712 | size_t start_ofs; | |
5713 | int match_len; | |
5714 | ||
1f317cb5 | 5715 | if (!ofpbuf_size(msg)) { |
982697a4 | 5716 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
5717 | } |
5718 | ||
1f317cb5 | 5719 | start_ofs = ofpbuf_size(msg); |
2b07c8b1 | 5720 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 5721 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
5722 | |
5723 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
5724 | nfmr->id = htonl(rq->id); | |
5725 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 5726 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
5727 | nfmr->match_len = htons(match_len); |
5728 | nfmr->table_id = rq->table_id; | |
5729 | } | |
5730 | ||
5731 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
5732 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 5733 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
5734 | * |
5735 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
5736 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
5737 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
5738 | * will point into the 'ofpacts' buffer. | |
5739 | * | |
5740 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
5741 | * this function multiple times for a single 'msg' iterates through the | |
5742 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
5743 | * not modify them between calls. | |
5744 | * | |
5745 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
5746 | * otherwise an OFPERR_* value. */ | |
5747 | int | |
5748 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
5749 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
5750 | { | |
5751 | struct nx_flow_update_header *nfuh; | |
5752 | unsigned int length; | |
e3f8f887 | 5753 | struct ofp_header *oh; |
2b07c8b1 | 5754 | |
cf3b7538 | 5755 | if (!msg->frame) { |
982697a4 | 5756 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
5757 | } |
5758 | ||
1f317cb5 | 5759 | if (!ofpbuf_size(msg)) { |
2b07c8b1 BP |
5760 | return EOF; |
5761 | } | |
5762 | ||
1f317cb5 | 5763 | if (ofpbuf_size(msg) < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
5764 | goto bad_len; |
5765 | } | |
5766 | ||
cf3b7538 | 5767 | oh = msg->frame; |
e3f8f887 | 5768 | |
1f317cb5 | 5769 | nfuh = ofpbuf_data(msg); |
2b07c8b1 BP |
5770 | update->event = ntohs(nfuh->event); |
5771 | length = ntohs(nfuh->length); | |
1f317cb5 | 5772 | if (length > ofpbuf_size(msg) || length % 8) { |
2b07c8b1 BP |
5773 | goto bad_len; |
5774 | } | |
5775 | ||
5776 | if (update->event == NXFME_ABBREV) { | |
5777 | struct nx_flow_update_abbrev *nfua; | |
5778 | ||
5779 | if (length != sizeof *nfua) { | |
5780 | goto bad_len; | |
5781 | } | |
5782 | ||
5783 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
5784 | update->xid = nfua->xid; | |
5785 | return 0; | |
5786 | } else if (update->event == NXFME_ADDED | |
5787 | || update->event == NXFME_DELETED | |
5788 | || update->event == NXFME_MODIFIED) { | |
5789 | struct nx_flow_update_full *nfuf; | |
5790 | unsigned int actions_len; | |
5791 | unsigned int match_len; | |
5792 | enum ofperr error; | |
5793 | ||
5794 | if (length < sizeof *nfuf) { | |
5795 | goto bad_len; | |
5796 | } | |
5797 | ||
5798 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
5799 | match_len = ntohs(nfuf->match_len); | |
5800 | if (sizeof *nfuf + match_len > length) { | |
5801 | goto bad_len; | |
5802 | } | |
5803 | ||
5804 | update->reason = ntohs(nfuf->reason); | |
5805 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
5806 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
5807 | update->table_id = nfuf->table_id; | |
5808 | update->cookie = nfuf->cookie; | |
81a76618 | 5809 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 5810 | |
81a76618 | 5811 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
5812 | if (error) { |
5813 | return error; | |
5814 | } | |
5815 | ||
5816 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
5817 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
5818 | ofpacts); | |
2b07c8b1 BP |
5819 | if (error) { |
5820 | return error; | |
5821 | } | |
5822 | ||
1f317cb5 PS |
5823 | update->ofpacts = ofpbuf_data(ofpacts); |
5824 | update->ofpacts_len = ofpbuf_size(ofpacts); | |
2b07c8b1 BP |
5825 | return 0; |
5826 | } else { | |
5827 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
5828 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
5829 | ntohs(nfuh->event)); | |
15549878 | 5830 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
5831 | } |
5832 | ||
5833 | bad_len: | |
437d0d22 | 5834 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
1f317cb5 | 5835 | "leftover bytes at end", ofpbuf_size(msg)); |
2b07c8b1 BP |
5836 | return OFPERR_OFPBRC_BAD_LEN; |
5837 | } | |
5838 | ||
5839 | uint32_t | |
5840 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
5841 | { | |
982697a4 BP |
5842 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
5843 | ||
5844 | return ntohl(cancel->id); | |
2b07c8b1 | 5845 | } |
9e1fd49b | 5846 | |
2b07c8b1 BP |
5847 | struct ofpbuf * |
5848 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
5849 | { | |
5850 | struct nx_flow_monitor_cancel *nfmc; | |
5851 | struct ofpbuf *msg; | |
5852 | ||
982697a4 BP |
5853 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
5854 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
5855 | nfmc->id = htonl(id); |
5856 | return msg; | |
5857 | } | |
5858 | ||
5859 | void | |
5860 | ofputil_start_flow_update(struct list *replies) | |
5861 | { | |
5862 | struct ofpbuf *msg; | |
5863 | ||
982697a4 BP |
5864 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
5865 | htonl(0), 1024); | |
2b07c8b1 BP |
5866 | |
5867 | list_init(replies); | |
5868 | list_push_back(replies, &msg->list_node); | |
5869 | } | |
5870 | ||
5871 | void | |
5872 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
5873 | struct list *replies) | |
5874 | { | |
e28ac5cf | 5875 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
5876 | struct nx_flow_update_header *nfuh; |
5877 | struct ofpbuf *msg; | |
5878 | size_t start_ofs; | |
5879 | ||
5880 | msg = ofpbuf_from_list(list_back(replies)); | |
1f317cb5 | 5881 | start_ofs = ofpbuf_size(msg); |
2b07c8b1 BP |
5882 | |
5883 | if (update->event == NXFME_ABBREV) { | |
5884 | struct nx_flow_update_abbrev *nfua; | |
5885 | ||
5886 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
5887 | nfua->xid = update->xid; | |
5888 | } else { | |
5889 | struct nx_flow_update_full *nfuf; | |
5890 | int match_len; | |
5891 | ||
5892 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 5893 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
5894 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
5895 | version); | |
2b07c8b1 BP |
5896 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
5897 | nfuf->reason = htons(update->reason); | |
81a76618 | 5898 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
5899 | nfuf->idle_timeout = htons(update->idle_timeout); |
5900 | nfuf->hard_timeout = htons(update->hard_timeout); | |
5901 | nfuf->match_len = htons(match_len); | |
5902 | nfuf->table_id = update->table_id; | |
5903 | nfuf->cookie = update->cookie; | |
5904 | } | |
5905 | ||
5906 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
1f317cb5 | 5907 | nfuh->length = htons(ofpbuf_size(msg) - start_ofs); |
2b07c8b1 BP |
5908 | nfuh->event = htons(update->event); |
5909 | ||
982697a4 | 5910 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
5911 | } |
5912 | \f | |
c6a93eb7 | 5913 | struct ofpbuf * |
de0f3156 SH |
5914 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
5915 | enum ofputil_protocol protocol) | |
c6a93eb7 | 5916 | { |
de0f3156 | 5917 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
5918 | struct ofpbuf *msg; |
5919 | size_t size; | |
5920 | ||
982697a4 | 5921 | size = po->ofpacts_len; |
c6a93eb7 BP |
5922 | if (po->buffer_id == UINT32_MAX) { |
5923 | size += po->packet_len; | |
5924 | } | |
5925 | ||
de0f3156 SH |
5926 | switch (ofp_version) { |
5927 | case OFP10_VERSION: { | |
31a9e63f | 5928 | struct ofp10_packet_out *opo; |
de0f3156 SH |
5929 | size_t actions_ofs; |
5930 | ||
5931 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
5932 | ofpbuf_put_zeros(msg, sizeof *opo); | |
1f317cb5 | 5933 | actions_ofs = ofpbuf_size(msg); |
e3f8f887 JR |
5934 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5935 | ofp_version); | |
de0f3156 | 5936 | |
6b8c377a | 5937 | opo = ofpbuf_l3(msg); |
de0f3156 | 5938 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 5939 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
1f317cb5 | 5940 | opo->actions_len = htons(ofpbuf_size(msg) - actions_ofs); |
de0f3156 SH |
5941 | break; |
5942 | } | |
f25d0cf3 | 5943 | |
de0f3156 | 5944 | case OFP11_VERSION: |
2e1ae200 | 5945 | case OFP12_VERSION: |
c37c0382 | 5946 | case OFP13_VERSION: |
42dccab5 BP |
5947 | case OFP14_VERSION: |
5948 | case OFP15_VERSION: { | |
7c1b1a0d SH |
5949 | struct ofp11_packet_out *opo; |
5950 | size_t len; | |
5951 | ||
5952 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
5953 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
5954 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
5955 | ofp_version); | |
6b8c377a | 5956 | opo = ofpbuf_l3(msg); |
7c1b1a0d SH |
5957 | opo->buffer_id = htonl(po->buffer_id); |
5958 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
5959 | opo->actions_len = htons(len); | |
5960 | break; | |
5961 | } | |
5962 | ||
de0f3156 | 5963 | default: |
428b2edd | 5964 | OVS_NOT_REACHED(); |
de0f3156 | 5965 | } |
f25d0cf3 | 5966 | |
c6a93eb7 BP |
5967 | if (po->buffer_id == UINT32_MAX) { |
5968 | ofpbuf_put(msg, po->packet, po->packet_len); | |
5969 | } | |
f25d0cf3 | 5970 | |
982697a4 | 5971 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
5972 | |
5973 | return msg; | |
5974 | } | |
d1e2cf21 | 5975 | \f |
fa37b408 BP |
5976 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
5977 | struct ofpbuf * | |
1a126c0c | 5978 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 5979 | { |
1a126c0c | 5980 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 5981 | htonl(0), 0); |
fa37b408 BP |
5982 | } |
5983 | ||
5984 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
5985 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
5986 | struct ofpbuf * | |
5987 | make_echo_reply(const struct ofp_header *rq) | |
5988 | { | |
982697a4 BP |
5989 | struct ofpbuf rq_buf; |
5990 | struct ofpbuf *reply; | |
5991 | ||
5992 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
5993 | ofpraw_pull_assert(&rq_buf); | |
5994 | ||
1f317cb5 PS |
5995 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, ofpbuf_size(&rq_buf)); |
5996 | ofpbuf_put(reply, ofpbuf_data(&rq_buf), ofpbuf_size(&rq_buf)); | |
982697a4 | 5997 | return reply; |
fa37b408 BP |
5998 | } |
5999 | ||
efb80167 | 6000 | struct ofpbuf * |
a0ae0b6e | 6001 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6002 | { |
a0ae0b6e SH |
6003 | enum ofpraw type; |
6004 | ||
6005 | switch (ofp_version) { | |
42dccab5 | 6006 | case OFP15_VERSION: |
c37c0382 | 6007 | case OFP14_VERSION: |
2e1ae200 | 6008 | case OFP13_VERSION: |
a0ae0b6e SH |
6009 | case OFP12_VERSION: |
6010 | case OFP11_VERSION: | |
6011 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6012 | break; | |
6013 | ||
6014 | case OFP10_VERSION: | |
6015 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6016 | break; | |
6017 | ||
6018 | default: | |
428b2edd | 6019 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6020 | } |
6021 | ||
6022 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6023 | } |
6024 | ||
7257b535 BP |
6025 | const char * |
6026 | ofputil_frag_handling_to_string(enum ofp_config_flags flags) | |
6027 | { | |
6028 | switch (flags & OFPC_FRAG_MASK) { | |
6029 | case OFPC_FRAG_NORMAL: return "normal"; | |
6030 | case OFPC_FRAG_DROP: return "drop"; | |
6031 | case OFPC_FRAG_REASM: return "reassemble"; | |
6032 | case OFPC_FRAG_NX_MATCH: return "nx-match"; | |
6033 | } | |
6034 | ||
428b2edd | 6035 | OVS_NOT_REACHED(); |
7257b535 BP |
6036 | } |
6037 | ||
6038 | bool | |
6039 | ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags) | |
6040 | { | |
6041 | if (!strcasecmp(s, "normal")) { | |
6042 | *flags = OFPC_FRAG_NORMAL; | |
6043 | } else if (!strcasecmp(s, "drop")) { | |
6044 | *flags = OFPC_FRAG_DROP; | |
6045 | } else if (!strcasecmp(s, "reassemble")) { | |
6046 | *flags = OFPC_FRAG_REASM; | |
6047 | } else if (!strcasecmp(s, "nx-match")) { | |
6048 | *flags = OFPC_FRAG_NX_MATCH; | |
6049 | } else { | |
6050 | return false; | |
6051 | } | |
6052 | return true; | |
6053 | } | |
6054 | ||
7b7503ea BP |
6055 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6056 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6057 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6058 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6059 | * |
6060 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6061 | enum ofperr | |
4e022ec0 | 6062 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6063 | { |
6064 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6065 | ||
4e022ec0 AW |
6066 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6067 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6068 | return 0; |
4e022ec0 AW |
6069 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6070 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6071 | return 0; |
6072 | } else { | |
bc146369 | 6073 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6074 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6075 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6076 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6077 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6078 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6079 | } | |
6080 | } | |
6081 | ||
6082 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6083 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6084 | * | |
6085 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6086 | ovs_be32 | |
4e022ec0 | 6087 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6088 | { |
4e022ec0 AW |
6089 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6090 | ? ofp_to_u16(ofp10_port) | |
6091 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6092 | } |
6093 | ||
39dc9082 BP |
6094 | #define OFPUTIL_NAMED_PORTS \ |
6095 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6096 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6097 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6098 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6099 | OFPUTIL_NAMED_PORT(ALL) \ | |
6100 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6101 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
7f05e7ab JR |
6102 | OFPUTIL_NAMED_PORT(ANY) |
6103 | ||
6104 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6105 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6106 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6107 | OFPUTIL_NAMED_PORT(NONE) |
6108 | ||
8010100b BP |
6109 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6110 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6111 | * (e.g. "LOCAL"). | |
c6100d92 | 6112 | * |
8010100b BP |
6113 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6114 | * or name. The caller should issue an error message in this case, because | |
6115 | * this function usually does not. (This gives the caller an opportunity to | |
6116 | * look up the port name another way, e.g. by contacting the switch and listing | |
6117 | * the names of all its ports). | |
c6100d92 BP |
6118 | * |
6119 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6120 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6121 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6122 | bool |
4e022ec0 | 6123 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6124 | { |
5b23ff7e | 6125 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6126 | |
5b23ff7e JR |
6127 | if (*s == '-') { |
6128 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6129 | return false; | |
6130 | } | |
8010100b | 6131 | *portp = 0; |
c6100d92 | 6132 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6133 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6134 | /* Pass. */ | |
6135 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6136 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6137 | "be translated to %u when talking to an OF1.1 or " | |
6138 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6139 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6140 | char name[OFP_MAX_PORT_NAME_LEN]; |
6141 | ||
6142 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6143 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6144 | "for compatibility with OpenFlow 1.1 and later", | |
6145 | name, port32); | |
4e022ec0 | 6146 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6147 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6148 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6149 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6150 | return false; |
c6100d92 | 6151 | } else { |
4e022ec0 | 6152 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6153 | } |
4e022ec0 AW |
6154 | |
6155 | *portp = u16_to_ofp(port32); | |
6156 | return true; | |
c6100d92 BP |
6157 | } else { |
6158 | struct pair { | |
6159 | const char *name; | |
4e022ec0 | 6160 | ofp_port_t value; |
c6100d92 BP |
6161 | }; |
6162 | static const struct pair pairs[] = { | |
39dc9082 | 6163 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6164 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6165 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6166 | }; |
6167 | const struct pair *p; | |
39dc9082 | 6168 | |
c6100d92 BP |
6169 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6170 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6171 | *portp = p->value; |
6172 | return true; | |
c6100d92 | 6173 | } |
39dc9082 | 6174 | } |
8010100b | 6175 | return false; |
39dc9082 | 6176 | } |
39dc9082 BP |
6177 | } |
6178 | ||
6179 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6180 | * Most ports' string representation is just the port number, but for special | |
6181 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6182 | void | |
4e022ec0 | 6183 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6184 | { |
28b11432 BP |
6185 | char name[OFP_MAX_PORT_NAME_LEN]; |
6186 | ||
6187 | ofputil_port_to_string(port, name, sizeof name); | |
6188 | ds_put_cstr(s, name); | |
6189 | } | |
39dc9082 | 6190 | |
28b11432 BP |
6191 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6192 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6193 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6194 | * by name, e.g. "LOCAL". */ | |
6195 | void | |
6196 | ofputil_port_to_string(ofp_port_t port, | |
6197 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6198 | { | |
39dc9082 | 6199 | switch (port) { |
28b11432 BP |
6200 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6201 | case OFPP_##NAME: \ | |
6202 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6203 | break; | |
39dc9082 BP |
6204 | OFPUTIL_NAMED_PORTS |
6205 | #undef OFPUTIL_NAMED_PORT | |
6206 | ||
6207 | default: | |
28b11432 BP |
6208 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6209 | break; | |
39dc9082 | 6210 | } |
39dc9082 BP |
6211 | } |
6212 | ||
7395c052 NZ |
6213 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6214 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6215 | * (either "ANY" or "ALL"). | |
6216 | * | |
6217 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6218 | * name. */ | |
6219 | bool | |
6220 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6221 | { | |
6222 | if (!strcasecmp(s, "any")) { | |
6223 | *group_idp = OFPG11_ANY; | |
6224 | } else if (!strcasecmp(s, "all")) { | |
6225 | *group_idp = OFPG11_ALL; | |
6226 | } else if (!str_to_uint(s, 10, group_idp)) { | |
6227 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6228 | "32-bit nonnegative integers or the keywords ANY or " | |
6229 | "ALL.)", s); | |
6230 | return false; | |
6231 | } | |
6232 | ||
6233 | return true; | |
6234 | } | |
6235 | ||
6236 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6237 | * Most groups' string representation is just the number, but for special | |
6238 | * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */ | |
6239 | void | |
6240 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6241 | { | |
6242 | char name[MAX_GROUP_NAME_LEN]; | |
6243 | ||
6244 | ofputil_group_to_string(group_id, name, sizeof name); | |
6245 | ds_put_cstr(s, name); | |
6246 | } | |
6247 | ||
6248 | ||
6249 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6250 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
6251 | * as just their number, but special groups, e.g. OFPG11_ALL, are represented | |
6252 | * by name, e.g. "ALL". */ | |
6253 | void | |
6254 | ofputil_group_to_string(uint32_t group_id, | |
6255 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6256 | { | |
6257 | switch (group_id) { | |
6258 | case OFPG11_ALL: | |
6259 | ovs_strlcpy(namebuf, "ALL", bufsize); | |
6260 | break; | |
6261 | ||
6262 | case OFPG11_ANY: | |
6263 | ovs_strlcpy(namebuf, "ANY", bufsize); | |
6264 | break; | |
6265 | ||
6266 | default: | |
6267 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6268 | break; | |
6269 | } | |
6270 | } | |
6271 | ||
2be393ed JP |
6272 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6273 | * 'ofp_version', tries to pull the first element from the array. If | |
6274 | * successful, initializes '*pp' with an abstract representation of the | |
6275 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6276 | * On an error, returns a positive OFPERR_* value. */ | |
6277 | int | |
2e3fa633 | 6278 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6279 | struct ofputil_phy_port *pp) |
6280 | { | |
8c3cc785 BP |
6281 | memset(pp, 0, sizeof *pp); |
6282 | ||
2e3fa633 SH |
6283 | switch (ofp_version) { |
6284 | case OFP10_VERSION: { | |
2be393ed JP |
6285 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6286 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6287 | } |
6288 | case OFP11_VERSION: | |
2e1ae200 JR |
6289 | case OFP12_VERSION: |
6290 | case OFP13_VERSION: { | |
2be393ed JP |
6291 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6292 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6293 | } | |
c37c0382 | 6294 | case OFP14_VERSION: |
42dccab5 | 6295 | case OFP15_VERSION: |
8c3cc785 | 6296 | return ofpbuf_size(b) ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6297 | default: |
428b2edd | 6298 | OVS_NOT_REACHED(); |
2e3fa633 | 6299 | } |
2be393ed JP |
6300 | } |
6301 | ||
3cbd9931 | 6302 | static void |
81a76618 | 6303 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6304 | { |
6305 | enum { | |
6306 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6307 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6308 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6309 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6310 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6311 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6312 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6313 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6314 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6315 | } may_match; |
6316 | ||
6317 | struct flow_wildcards wc; | |
6318 | ||
6319 | /* Figure out what fields may be matched. */ | |
81a76618 | 6320 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6321 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6322 | if (match->flow.nw_proto == IPPROTO_TCP || |
6323 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6324 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6325 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6326 | may_match |= MAY_TP_ADDR; |
6327 | } | |
81a76618 | 6328 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6329 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6330 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6331 | match->flow.nw_proto == IPPROTO_UDP || |
6332 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6333 | may_match |= MAY_TP_ADDR; |
81a76618 | 6334 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6335 | may_match |= MAY_TP_ADDR; |
81a76618 | 6336 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6337 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6338 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6339 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6340 | } | |
6341 | } | |
8087f5ff MM |
6342 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6343 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6344 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6345 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6346 | may_match = MAY_MPLS; | |
1c0b7503 | 6347 | } else { |
b459a924 BP |
6348 | may_match = 0; |
6349 | } | |
6350 | ||
6351 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6352 | wc = match->wc; |
b459a924 | 6353 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6354 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6355 | } |
6356 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6357 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6358 | } |
6359 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6360 | wc.masks.nw_proto = 0; |
b459a924 | 6361 | } |
9e44d715 | 6362 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6363 | wc.masks.nw_tos = 0; |
6364 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6365 | } |
6366 | if (!(may_match & MAY_ARP_SHA)) { | |
26720e24 | 6367 | memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN); |
b459a924 BP |
6368 | } |
6369 | if (!(may_match & MAY_ARP_THA)) { | |
26720e24 | 6370 | memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN); |
b459a924 | 6371 | } |
d78477ec | 6372 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6373 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6374 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6375 | } |
6376 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6377 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6378 | } |
b02475c5 | 6379 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6380 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6381 | } |
b459a924 BP |
6382 | |
6383 | /* Log any changes. */ | |
81a76618 | 6384 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6385 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6386 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6387 | |
81a76618 BP |
6388 | match->wc = wc; |
6389 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6390 | |
6391 | if (log) { | |
81a76618 | 6392 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6393 | VLOG_INFO("normalization changed ofp_match, details:"); |
6394 | VLOG_INFO(" pre: %s", pre); | |
6395 | VLOG_INFO("post: %s", post); | |
6396 | free(pre); | |
6397 | free(post); | |
6398 | } | |
fa37b408 | 6399 | } |
3f09c339 | 6400 | } |
26c112c2 | 6401 | |
81a76618 | 6402 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6403 | * |
6404 | * 1. If the type of level N is known, then only the valid fields for that | |
6405 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6406 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6407 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6408 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6409 | * IPv4 flow. |
6410 | * | |
6411 | * 2. If the type of level N is not known (or not understood by Open | |
6412 | * vSwitch), then no fields at all for that level may be specified. For | |
6413 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6414 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6415 | * SCTP flow. |
6416 | * | |
81a76618 | 6417 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6418 | * message. */ |
6419 | void | |
81a76618 | 6420 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6421 | { |
81a76618 | 6422 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6423 | } |
6424 | ||
81a76618 BP |
6425 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6426 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6427 | * sense for use on flows received from elsewhere (so that a bug in the program |
6428 | * that sent them can be reported and corrected). */ | |
6429 | void | |
81a76618 | 6430 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6431 | { |
81a76618 | 6432 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6433 | } |
6434 | ||
0ff22822 BP |
6435 | /* Parses a key or a key-value pair from '*stringp'. |
6436 | * | |
6437 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6438 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6439 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6440 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6441 | * terminators. Returns true. | |
6442 | * | |
6443 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6444 | * NULL and returns false. */ | |
6445 | bool | |
6446 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6447 | { | |
6448 | char *pos, *key, *value; | |
6449 | size_t key_len; | |
6450 | ||
6451 | pos = *stringp; | |
6452 | pos += strspn(pos, ", \t\r\n"); | |
6453 | if (*pos == '\0') { | |
6454 | *keyp = *valuep = NULL; | |
6455 | return false; | |
6456 | } | |
6457 | ||
6458 | key = pos; | |
6459 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6460 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6461 | /* The value can be separated by a colon. */ | |
6462 | size_t value_len; | |
6463 | ||
6464 | value = key + key_len + 1; | |
6465 | value_len = strcspn(value, ", \t\r\n"); | |
6466 | pos = value + value_len + (value[value_len] != '\0'); | |
6467 | value[value_len] = '\0'; | |
6468 | } else if (key[key_len] == '(') { | |
6469 | /* The value can be surrounded by balanced parentheses. The outermost | |
6470 | * set of parentheses is removed. */ | |
6471 | int level = 1; | |
6472 | size_t value_len; | |
6473 | ||
6474 | value = key + key_len + 1; | |
6475 | for (value_len = 0; level > 0; value_len++) { | |
6476 | switch (value[value_len]) { | |
6477 | case '\0': | |
33cadc50 BP |
6478 | level = 0; |
6479 | break; | |
0ff22822 BP |
6480 | |
6481 | case '(': | |
6482 | level++; | |
6483 | break; | |
6484 | ||
6485 | case ')': | |
6486 | level--; | |
6487 | break; | |
6488 | } | |
6489 | } | |
6490 | value[value_len - 1] = '\0'; | |
6491 | pos = value + value_len; | |
6492 | } else { | |
6493 | /* There might be no value at all. */ | |
6494 | value = key + key_len; /* Will become the empty string below. */ | |
6495 | pos = key + key_len + (key[key_len] != '\0'); | |
6496 | } | |
6497 | key[key_len] = '\0'; | |
6498 | ||
6499 | *stringp = pos; | |
6500 | *keyp = key; | |
6501 | *valuep = value; | |
6502 | return true; | |
6503 | } | |
f8e4867e SH |
6504 | |
6505 | /* Encode a dump ports request for 'port', the encoded message | |
2e1ae200 | 6506 | * will be for Open Flow version 'ofp_version'. Returns message |
f8e4867e SH |
6507 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
6508 | struct ofpbuf * | |
4e022ec0 | 6509 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
6510 | { |
6511 | struct ofpbuf *request; | |
6512 | ||
6513 | switch (ofp_version) { | |
6514 | case OFP10_VERSION: { | |
6515 | struct ofp10_port_stats_request *req; | |
6516 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
6517 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 6518 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
6519 | break; |
6520 | } | |
6521 | case OFP11_VERSION: | |
2e1ae200 | 6522 | case OFP12_VERSION: |
c37c0382 | 6523 | case OFP13_VERSION: |
42dccab5 BP |
6524 | case OFP14_VERSION: |
6525 | case OFP15_VERSION: { | |
f8e4867e SH |
6526 | struct ofp11_port_stats_request *req; |
6527 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
6528 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6529 | req->port_no = ofputil_port_to_ofp11(port); | |
6530 | break; | |
6531 | } | |
6532 | default: | |
428b2edd | 6533 | OVS_NOT_REACHED(); |
f8e4867e SH |
6534 | } |
6535 | ||
6536 | return request; | |
6537 | } | |
6538 | ||
6539 | static void | |
6540 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
6541 | struct ofp10_port_stats *ps10) | |
6542 | { | |
4e022ec0 | 6543 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
6544 | memset(ps10->pad, 0, sizeof ps10->pad); |
6545 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
6546 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
6547 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
6548 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
6549 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
6550 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
6551 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
6552 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
6553 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
6554 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
6555 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
6556 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
6557 | } | |
6558 | ||
6559 | static void | |
6560 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
6561 | struct ofp11_port_stats *ps11) | |
6562 | { | |
6563 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6564 | memset(ps11->pad, 0, sizeof ps11->pad); | |
6565 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
6566 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
6567 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
6568 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
6569 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
6570 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
6571 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
6572 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
6573 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6574 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6575 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6576 | ps11->collisions = htonll(ops->stats.collisions); | |
6577 | } | |
6578 | ||
2e1ae200 JR |
6579 | static void |
6580 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
6581 | struct ofp13_port_stats *ps13) | |
6582 | { | |
6583 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
6584 | ps13->duration_sec = htonl(ops->duration_sec); |
6585 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
6586 | } |
6587 | ||
5469537b BP |
6588 | static void |
6589 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
6590 | struct list *replies) | |
6591 | { | |
6592 | struct ofp14_port_stats_prop_ethernet *eth; | |
6593 | struct ofp14_port_stats *ps14; | |
6594 | struct ofpbuf *reply; | |
6595 | ||
6596 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
6597 | ||
6598 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
6599 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
6600 | memset(ps14->pad, 0, sizeof ps14->pad); | |
6601 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
6602 | ps14->duration_sec = htonl(ops->duration_sec); | |
6603 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
6604 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
6605 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
6606 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
6607 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
6608 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
6609 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
6610 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
6611 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
6612 | ||
6613 | eth = ofpbuf_put_uninit(reply, sizeof *eth); | |
6614 | eth->type = htons(OFPPSPT14_ETHERNET); | |
6615 | eth->length = htons(sizeof *eth); | |
6616 | memset(eth->pad, 0, sizeof eth->pad); | |
6617 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
6618 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
6619 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
6620 | eth->collisions = htonll(ops->stats.collisions); | |
6621 | } | |
2e1ae200 | 6622 | |
ad4c35fe | 6623 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e SH |
6624 | void |
6625 | ofputil_append_port_stat(struct list *replies, | |
6626 | const struct ofputil_port_stats *ops) | |
6627 | { | |
e28ac5cf | 6628 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
6629 | case OFP13_VERSION: { |
6630 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6631 | ofputil_port_stats_to_ofp13(ops, reply); | |
6632 | break; | |
6633 | } | |
f8e4867e SH |
6634 | case OFP12_VERSION: |
6635 | case OFP11_VERSION: { | |
6636 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6637 | ofputil_port_stats_to_ofp11(ops, reply); | |
6638 | break; | |
6639 | } | |
6640 | ||
6641 | case OFP10_VERSION: { | |
6642 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
6643 | ofputil_port_stats_to_ofp10(ops, reply); | |
6644 | break; | |
6645 | } | |
6646 | ||
c37c0382 | 6647 | case OFP14_VERSION: |
42dccab5 | 6648 | case OFP15_VERSION: |
5469537b | 6649 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
6650 | break; |
6651 | ||
f8e4867e | 6652 | default: |
428b2edd | 6653 | OVS_NOT_REACHED(); |
f8e4867e SH |
6654 | } |
6655 | } | |
6656 | ||
6657 | static enum ofperr | |
6658 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
6659 | const struct ofp10_port_stats *ps10) | |
6660 | { | |
6661 | memset(ops, 0, sizeof *ops); | |
6662 | ||
4e022ec0 | 6663 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
6664 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
6665 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
6666 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
6667 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
6668 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
6669 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
6670 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
6671 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
6672 | ops->stats.rx_frame_errors = | |
6673 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
6674 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
6675 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
6676 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 6677 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6678 | |
6679 | return 0; | |
6680 | } | |
6681 | ||
6682 | static enum ofperr | |
6683 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
6684 | const struct ofp11_port_stats *ps11) | |
6685 | { | |
6686 | enum ofperr error; | |
6687 | ||
6688 | memset(ops, 0, sizeof *ops); | |
6689 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
6690 | if (error) { | |
6691 | return error; | |
6692 | } | |
6693 | ||
6694 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
6695 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
6696 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
6697 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
6698 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
6699 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
6700 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
6701 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
6702 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
6703 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
6704 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
6705 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 6706 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
6707 | |
6708 | return 0; | |
6709 | } | |
6710 | ||
2e1ae200 JR |
6711 | static enum ofperr |
6712 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
6713 | const struct ofp13_port_stats *ps13) | |
6714 | { | |
65e0be10 | 6715 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 6716 | if (!error) { |
65e0be10 BP |
6717 | ops->duration_sec = ntohl(ps13->duration_sec); |
6718 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 6719 | } |
2e1ae200 JR |
6720 | return error; |
6721 | } | |
6722 | ||
5469537b BP |
6723 | static enum ofperr |
6724 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
6725 | struct ofputil_port_stats *ops) | |
be0c30df | 6726 | { |
5469537b BP |
6727 | const struct ofp14_port_stats_prop_ethernet *eth = ofpbuf_data(payload); |
6728 | ||
6729 | if (ofpbuf_size(payload) != sizeof *eth) { | |
6730 | return OFPERR_OFPBPC_BAD_LEN; | |
6731 | } | |
6732 | ||
6733 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
6734 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
6735 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
6736 | ops->stats.collisions = ntohll(eth->collisions); | |
6737 | ||
6738 | return 0; | |
6739 | } | |
6740 | ||
6741 | static enum ofperr | |
6742 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
6743 | struct ofpbuf *msg) | |
6744 | { | |
6745 | const struct ofp14_port_stats *ps14; | |
6746 | struct ofpbuf properties; | |
6747 | enum ofperr error; | |
6748 | size_t len; | |
6749 | ||
6750 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
6751 | if (!ps14) { | |
6752 | return OFPERR_OFPBRC_BAD_LEN; | |
6753 | } | |
6754 | ||
6755 | len = ntohs(ps14->length); | |
6756 | if (len < sizeof *ps14 || len - sizeof *ps14 > ofpbuf_size(msg)) { | |
6757 | return OFPERR_OFPBRC_BAD_LEN; | |
be0c30df | 6758 | } |
5469537b BP |
6759 | len -= sizeof *ps14; |
6760 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
6761 | ||
6762 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
6763 | if (error) { | |
6764 | return error; | |
6765 | } | |
6766 | ||
6767 | ops->duration_sec = ntohl(ps14->duration_sec); | |
6768 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
6769 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
6770 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
6771 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
6772 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
6773 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
6774 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
6775 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
6776 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
6777 | ops->stats.rx_frame_errors = UINT64_MAX; | |
6778 | ops->stats.rx_over_errors = UINT64_MAX; | |
6779 | ops->stats.rx_crc_errors = UINT64_MAX; | |
6780 | ops->stats.collisions = UINT64_MAX; | |
6781 | ||
6782 | while (ofpbuf_size(&properties) > 0) { | |
6783 | struct ofpbuf payload; | |
6784 | enum ofperr error; | |
6785 | uint16_t type; | |
6786 | ||
6787 | error = ofputil_pull_property(&properties, &payload, &type); | |
6788 | if (error) { | |
6789 | return error; | |
6790 | } | |
6791 | ||
6792 | switch (type) { | |
6793 | case OFPPSPT14_ETHERNET: | |
6794 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
6795 | break; | |
6796 | ||
6797 | default: | |
6798 | log_property(true, "unknown port stats property %"PRIu16, type); | |
6799 | error = 0; | |
6800 | break; | |
6801 | } | |
6802 | ||
6803 | if (error) { | |
6804 | return error; | |
6805 | } | |
6806 | } | |
6807 | ||
6808 | return 0; | |
be0c30df | 6809 | } |
2e1ae200 | 6810 | |
f8e4867e SH |
6811 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
6812 | * message 'oh'. */ | |
6813 | size_t | |
6814 | ofputil_count_port_stats(const struct ofp_header *oh) | |
6815 | { | |
5469537b | 6816 | struct ofputil_port_stats ps; |
f8e4867e | 6817 | struct ofpbuf b; |
5469537b | 6818 | size_t n = 0; |
f8e4867e SH |
6819 | |
6820 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
6821 | ofpraw_pull_assert(&b); | |
5469537b BP |
6822 | while (!ofputil_decode_port_stats(&ps, &b)) { |
6823 | n++; | |
6824 | } | |
6825 | return n; | |
f8e4867e SH |
6826 | } |
6827 | ||
6828 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
6829 | * ofputil_port_stats in 'ps'. | |
6830 | * | |
6831 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
6832 | * message. Calling this function multiple times for a single 'msg' iterates | |
6833 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
6834 | * null and not modify them between calls. | |
6835 | * | |
6836 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
6837 | * otherwise a positive errno value. */ | |
6838 | int | |
6839 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
6840 | { | |
6841 | enum ofperr error; | |
6842 | enum ofpraw raw; | |
6843 | ||
cf3b7538 JR |
6844 | error = (msg->frame |
6845 | ? ofpraw_decode(&raw, msg->frame) | |
f8e4867e SH |
6846 | : ofpraw_pull(&raw, msg)); |
6847 | if (error) { | |
6848 | return error; | |
6849 | } | |
6850 | ||
1f317cb5 | 6851 | if (!ofpbuf_size(msg)) { |
f8e4867e | 6852 | return EOF; |
5469537b BP |
6853 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
6854 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
6855 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
6856 | const struct ofp13_port_stats *ps13; | |
6857 | ||
6858 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
6859 | if (!ps13) { | |
6860 | goto bad_len; | |
6861 | } | |
6862 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
6863 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
6864 | const struct ofp11_port_stats *ps11; | |
6865 | ||
6866 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
6867 | if (!ps11) { | |
2e1ae200 | 6868 | goto bad_len; |
f8e4867e SH |
6869 | } |
6870 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
6871 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
6872 | const struct ofp10_port_stats *ps10; | |
6873 | ||
6874 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
6875 | if (!ps10) { | |
2e1ae200 | 6876 | goto bad_len; |
f8e4867e SH |
6877 | } |
6878 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
6879 | } else { | |
428b2edd | 6880 | OVS_NOT_REACHED(); |
f8e4867e SH |
6881 | } |
6882 | ||
2e1ae200 | 6883 | bad_len: |
437d0d22 | 6884 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
1f317cb5 | 6885 | "bytes at end", ofpbuf_size(msg)); |
2e1ae200 | 6886 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
6887 | } |
6888 | ||
6889 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
6890 | * port number and stores the latter in '*ofp10_port'. | |
6891 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
6892 | enum ofperr | |
6893 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 6894 | ofp_port_t *ofp10_port) |
f8e4867e SH |
6895 | { |
6896 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 6897 | case OFP15_VERSION: |
5469537b | 6898 | case OFP14_VERSION: |
2e1ae200 | 6899 | case OFP13_VERSION: |
f8e4867e SH |
6900 | case OFP12_VERSION: |
6901 | case OFP11_VERSION: { | |
6902 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
6903 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
6904 | } | |
6905 | ||
6906 | case OFP10_VERSION: { | |
6907 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 6908 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
6909 | return 0; |
6910 | } | |
6911 | ||
6912 | default: | |
428b2edd | 6913 | OVS_NOT_REACHED(); |
f8e4867e SH |
6914 | } |
6915 | } | |
64626975 | 6916 | |
7395c052 NZ |
6917 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
6918 | void | |
6919 | ofputil_bucket_list_destroy(struct list *buckets) | |
6920 | { | |
6921 | struct ofputil_bucket *bucket, *next_bucket; | |
6922 | ||
6923 | LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) { | |
6924 | list_remove(&bucket->list_node); | |
6925 | free(bucket->ofpacts); | |
6926 | free(bucket); | |
6927 | } | |
6928 | } | |
6929 | ||
6930 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', | |
6931 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
6932 | * for all groups.) | |
6933 | * | |
6934 | * Group statistics include packet and byte counts for each group. */ | |
6935 | struct ofpbuf * | |
6936 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
6937 | uint32_t group_id) | |
6938 | { | |
6939 | struct ofpbuf *request; | |
6940 | ||
6941 | switch (ofp_version) { | |
6942 | case OFP10_VERSION: | |
6943 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
6944 | "(\'-O OpenFlow11\')"); | |
6945 | case OFP11_VERSION: | |
6946 | case OFP12_VERSION: | |
c37c0382 | 6947 | case OFP13_VERSION: |
42dccab5 BP |
6948 | case OFP14_VERSION: |
6949 | case OFP15_VERSION: { | |
7395c052 NZ |
6950 | struct ofp11_group_stats_request *req; |
6951 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
6952 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6953 | req->group_id = htonl(group_id); | |
6954 | break; | |
6955 | } | |
6956 | default: | |
428b2edd | 6957 | OVS_NOT_REACHED(); |
7395c052 NZ |
6958 | } |
6959 | ||
6960 | return request; | |
6961 | } | |
6962 | ||
19187a71 BP |
6963 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
6964 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
6965 | * requested. */ | |
6966 | uint32_t | |
6967 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
6968 | { | |
6969 | struct ofpbuf request; | |
6970 | enum ofpraw raw; | |
6971 | ||
6972 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
6973 | raw = ofpraw_pull_assert(&request); | |
6974 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
6975 | return OFPG_ALL; | |
6976 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
6977 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
6978 | return ntohl(*group_id); | |
6979 | } else { | |
6980 | OVS_NOT_REACHED(); | |
6981 | } | |
6982 | } | |
6983 | ||
7395c052 | 6984 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
6985 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
6986 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
6987 | * groups). | |
7395c052 NZ |
6988 | * |
6989 | * Group descriptions include the bucket and action configuration for each | |
6990 | * group. */ | |
6991 | struct ofpbuf * | |
19187a71 BP |
6992 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
6993 | uint32_t group_id) | |
7395c052 NZ |
6994 | { |
6995 | struct ofpbuf *request; | |
19187a71 | 6996 | ovs_be32 gid; |
7395c052 NZ |
6997 | |
6998 | switch (ofp_version) { | |
6999 | case OFP10_VERSION: | |
7000 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7001 | "(\'-O OpenFlow11\')"); | |
7002 | case OFP11_VERSION: | |
7003 | case OFP12_VERSION: | |
c37c0382 AC |
7004 | case OFP13_VERSION: |
7005 | case OFP14_VERSION: | |
19187a71 BP |
7006 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7007 | ofp_version, 0); | |
7008 | break; | |
42dccab5 | 7009 | case OFP15_VERSION: |
19187a71 BP |
7010 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7011 | ofp_version, 0); | |
7012 | gid = htonl(group_id); | |
7013 | ofpbuf_put(request, &gid, sizeof gid); | |
7395c052 | 7014 | break; |
7395c052 | 7015 | default: |
428b2edd | 7016 | OVS_NOT_REACHED(); |
7395c052 NZ |
7017 | } |
7018 | ||
7019 | return request; | |
7020 | } | |
7021 | ||
dcbe78ad | 7022 | static void |
63759e71 AZ |
7023 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7024 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7025 | { |
7395c052 NZ |
7026 | int i; |
7027 | ||
dcbe78ad AZ |
7028 | for (i = 0; i < gs->n_buckets; i++) { |
7029 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7030 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7031 | } |
7395c052 NZ |
7032 | } |
7033 | ||
7034 | static void | |
dcbe78ad | 7035 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7036 | struct ofp11_group_stats *gs11, size_t length, |
7037 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7038 | { |
63759e71 AZ |
7039 | memset(gs11, 0, sizeof *gs11); |
7040 | gs11->length = htons(length); | |
7041 | gs11->group_id = htonl(gs->group_id); | |
7042 | gs11->ref_count = htonl(gs->ref_count); | |
7043 | gs11->packet_count = htonll(gs->packet_count); | |
7044 | gs11->byte_count = htonll(gs->byte_count); | |
7045 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7046 | } |
7395c052 | 7047 | |
dcbe78ad AZ |
7048 | static void |
7049 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7050 | struct ofp13_group_stats *gs13, size_t length, |
7051 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7052 | { |
63759e71 | 7053 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7054 | gs13->duration_sec = htonl(gs->duration_sec); |
7055 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7056 | |
7395c052 NZ |
7057 | } |
7058 | ||
dcbe78ad | 7059 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7060 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7061 | * must have originally been initialized with ofpmp_init(). */ | |
7062 | void | |
7063 | ofputil_append_group_stats(struct list *replies, | |
dcbe78ad | 7064 | const struct ofputil_group_stats *gs) |
7395c052 | 7065 | { |
63759e71 AZ |
7066 | size_t bucket_counter_size; |
7067 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7068 | size_t length; |
7395c052 | 7069 | |
63759e71 AZ |
7070 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7071 | ||
e28ac5cf | 7072 | switch (ofpmp_version(replies)) { |
7395c052 | 7073 | case OFP11_VERSION: |
dcbe78ad | 7074 | case OFP12_VERSION:{ |
63759e71 | 7075 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7076 | |
63759e71 AZ |
7077 | length = sizeof *gs11 + bucket_counter_size; |
7078 | gs11 = ofpmp_append(replies, length); | |
7079 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7080 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7081 | break; |
7082 | } | |
7395c052 NZ |
7083 | |
7084 | case OFP13_VERSION: | |
42dccab5 BP |
7085 | case OFP14_VERSION: |
7086 | case OFP15_VERSION: { | |
63759e71 | 7087 | struct ofp13_group_stats *gs13; |
7395c052 | 7088 | |
63759e71 AZ |
7089 | length = sizeof *gs13 + bucket_counter_size; |
7090 | gs13 = ofpmp_append(replies, length); | |
7091 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7092 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7093 | break; |
7094 | } | |
c37c0382 | 7095 | |
7395c052 NZ |
7096 | case OFP10_VERSION: |
7097 | default: | |
428b2edd | 7098 | OVS_NOT_REACHED(); |
7395c052 NZ |
7099 | } |
7100 | } | |
7395c052 NZ |
7101 | /* Returns an OpenFlow group features request for OpenFlow version |
7102 | * 'ofp_version'. */ | |
7103 | struct ofpbuf * | |
7104 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7105 | { | |
7106 | struct ofpbuf *request = NULL; | |
7107 | ||
7108 | switch (ofp_version) { | |
7109 | case OFP10_VERSION: | |
7110 | case OFP11_VERSION: | |
7111 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7112 | "(\'-O OpenFlow12\')"); | |
7113 | case OFP12_VERSION: | |
c37c0382 AC |
7114 | case OFP13_VERSION: |
7115 | case OFP14_VERSION: | |
42dccab5 | 7116 | case OFP15_VERSION: |
7395c052 | 7117 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7118 | ofp_version, 0); |
7395c052 | 7119 | break; |
7395c052 | 7120 | default: |
428b2edd | 7121 | OVS_NOT_REACHED(); |
7395c052 NZ |
7122 | } |
7123 | ||
7124 | return request; | |
7125 | } | |
7126 | ||
7127 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7128 | * group features request 'request'. */ | |
7129 | struct ofpbuf * | |
7130 | ofputil_encode_group_features_reply( | |
7131 | const struct ofputil_group_features *features, | |
7132 | const struct ofp_header *request) | |
7133 | { | |
7134 | struct ofp12_group_features_stats *ogf; | |
7135 | struct ofpbuf *reply; | |
08d1e234 | 7136 | int i; |
7395c052 NZ |
7137 | |
7138 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7139 | request->version, request->xid, 0); | |
7140 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7141 | ogf->types = htonl(features->types); | |
7142 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7143 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7144 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7145 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7146 | request->version); | |
7147 | } | |
7395c052 NZ |
7148 | |
7149 | return reply; | |
7150 | } | |
7151 | ||
7152 | /* Decodes group features reply 'oh' into 'features'. */ | |
7153 | void | |
7154 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7155 | struct ofputil_group_features *features) | |
7156 | { | |
7157 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7158 | int i; |
7395c052 NZ |
7159 | |
7160 | features->types = ntohl(ogf->types); | |
7161 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7162 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7163 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7164 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7165 | ogf->actions[i], oh->version); | |
7166 | } | |
7395c052 NZ |
7167 | } |
7168 | ||
7169 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7170 | * group ID and stores the latter in '*group_id'. | |
7171 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7172 | enum ofperr | |
7173 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7174 | uint32_t *group_id) | |
7175 | { | |
7176 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7177 | *group_id = ntohl(gsr11->group_id); | |
7178 | return 0; | |
7179 | } | |
7180 | ||
7181 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7182 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7183 | * caller to eventually free. | |
7395c052 NZ |
7184 | * |
7185 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7186 | * Calling this function multiple times for a single 'msg' iterates through the | |
7187 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7188 | * not modify them between calls. | |
7189 | * | |
7190 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7191 | * otherwise a positive errno value. */ | |
7192 | int | |
7193 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7194 | struct ofputil_group_stats *gs) | |
7195 | { | |
7196 | struct ofp11_bucket_counter *obc; | |
7197 | struct ofp11_group_stats *ogs11; | |
7198 | enum ofpraw raw; | |
7199 | enum ofperr error; | |
7200 | size_t base_len; | |
7201 | size_t length; | |
7202 | size_t i; | |
7203 | ||
646b2a9c | 7204 | gs->bucket_stats = NULL; |
cf3b7538 JR |
7205 | error = (msg->frame |
7206 | ? ofpraw_decode(&raw, msg->frame) | |
7395c052 NZ |
7207 | : ofpraw_pull(&raw, msg)); |
7208 | if (error) { | |
7209 | return error; | |
7210 | } | |
7211 | ||
1f317cb5 | 7212 | if (!ofpbuf_size(msg)) { |
7395c052 NZ |
7213 | return EOF; |
7214 | } | |
7215 | ||
7216 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7217 | base_len = sizeof *ogs11; | |
7218 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7219 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7220 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7221 | struct ofp13_group_stats *ogs13; | |
7222 | ||
7223 | base_len = sizeof *ogs13; | |
7224 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7225 | if (ogs13) { | |
7226 | ogs11 = &ogs13->gs; | |
7227 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7228 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7229 | } else { | |
7230 | ogs11 = NULL; | |
7231 | } | |
7232 | } else { | |
428b2edd | 7233 | OVS_NOT_REACHED(); |
7395c052 NZ |
7234 | } |
7235 | ||
7236 | if (!ogs11) { | |
437d0d22 | 7237 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 7238 | ofpraw_get_name(raw), ofpbuf_size(msg)); |
7395c052 NZ |
7239 | return OFPERR_OFPBRC_BAD_LEN; |
7240 | } | |
7241 | length = ntohs(ogs11->length); | |
7242 | if (length < sizeof base_len) { | |
34582733 | 7243 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7244 | ofpraw_get_name(raw), length); |
7245 | return OFPERR_OFPBRC_BAD_LEN; | |
7246 | } | |
7247 | ||
7248 | gs->group_id = ntohl(ogs11->group_id); | |
7249 | gs->ref_count = ntohl(ogs11->ref_count); | |
7250 | gs->packet_count = ntohll(ogs11->packet_count); | |
7251 | gs->byte_count = ntohll(ogs11->byte_count); | |
7252 | ||
7253 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7254 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7255 | if (!obc) { | |
437d0d22 | 7256 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
1f317cb5 | 7257 | ofpraw_get_name(raw), ofpbuf_size(msg)); |
7395c052 NZ |
7258 | return OFPERR_OFPBRC_BAD_LEN; |
7259 | } | |
7260 | ||
646b2a9c | 7261 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7262 | for (i = 0; i < gs->n_buckets; i++) { |
7263 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7264 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7265 | } | |
7266 | ||
7267 | return 0; | |
7268 | } | |
7269 | ||
7270 | /* Appends a group stats reply that contains the data in 'gds' to those already | |
7271 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
7272 | * initialized with ofpmp_init(). */ | |
7273 | void | |
7274 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
7275 | struct list *buckets, | |
7276 | struct list *replies) | |
7277 | { | |
7278 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
e28ac5cf | 7279 | enum ofp_version version = ofpmp_version(replies); |
7395c052 NZ |
7280 | struct ofp11_group_desc_stats *ogds; |
7281 | struct ofputil_bucket *bucket; | |
7282 | size_t start_ogds; | |
7283 | ||
1f317cb5 | 7284 | start_ogds = ofpbuf_size(reply); |
7395c052 NZ |
7285 | ofpbuf_put_zeros(reply, sizeof *ogds); |
7286 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7287 | struct ofp11_bucket *ob; | |
7288 | size_t start_ob; | |
7289 | ||
1f317cb5 | 7290 | start_ob = ofpbuf_size(reply); |
7395c052 | 7291 | ofpbuf_put_zeros(reply, sizeof *ob); |
e3f8f887 JR |
7292 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7293 | reply, version); | |
7395c052 | 7294 | ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob); |
1f317cb5 | 7295 | ob->len = htons(ofpbuf_size(reply) - start_ob); |
7395c052 NZ |
7296 | ob->weight = htons(bucket->weight); |
7297 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7298 | ob->watch_group = htonl(bucket->watch_group); | |
7299 | } | |
7300 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
1f317cb5 | 7301 | ogds->length = htons(ofpbuf_size(reply) - start_ogds); |
7395c052 NZ |
7302 | ogds->type = gds->type; |
7303 | ogds->group_id = htonl(gds->group_id); | |
7304 | ||
7305 | ofpmp_postappend(replies, start_ogds); | |
7306 | } | |
7307 | ||
7308 | static enum ofperr | |
e3f8f887 JR |
7309 | ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length, |
7310 | enum ofp_version version, struct list *buckets) | |
7395c052 NZ |
7311 | { |
7312 | struct ofp11_bucket *ob; | |
7313 | ||
7314 | list_init(buckets); | |
7315 | while (buckets_length > 0) { | |
7316 | struct ofputil_bucket *bucket; | |
7317 | struct ofpbuf ofpacts; | |
7318 | enum ofperr error; | |
7319 | size_t ob_len; | |
7320 | ||
7321 | ob = (buckets_length >= sizeof *ob | |
7322 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
7323 | : NULL); | |
7324 | if (!ob) { | |
34582733 | 7325 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 7326 | buckets_length); |
e27e4ce9 | 7327 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
7328 | } |
7329 | ||
7330 | ob_len = ntohs(ob->len); | |
7331 | if (ob_len < sizeof *ob) { | |
7332 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7333 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
7334 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7335 | } else if (ob_len > buckets_length) { | |
7336 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 7337 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
7338 | ob_len, buckets_length); |
7339 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
7340 | } | |
7341 | buckets_length -= ob_len; | |
7342 | ||
7343 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
7344 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
7345 | version, &ofpacts); | |
7395c052 NZ |
7346 | if (error) { |
7347 | ofpbuf_uninit(&ofpacts); | |
7348 | ofputil_bucket_list_destroy(buckets); | |
7349 | return error; | |
7350 | } | |
7351 | ||
7352 | bucket = xzalloc(sizeof *bucket); | |
7353 | bucket->weight = ntohs(ob->weight); | |
7354 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
7355 | if (error) { | |
7356 | ofpbuf_uninit(&ofpacts); | |
7357 | ofputil_bucket_list_destroy(buckets); | |
7358 | return OFPERR_OFPGMFC_BAD_WATCH; | |
7359 | } | |
7360 | bucket->watch_group = ntohl(ob->watch_group); | |
7361 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
1f317cb5 | 7362 | bucket->ofpacts_len = ofpbuf_size(&ofpacts); |
7395c052 NZ |
7363 | list_push_back(buckets, &bucket->list_node); |
7364 | } | |
7365 | ||
7366 | return 0; | |
7367 | } | |
7368 | ||
7369 | /* Converts a group description reply in 'msg' into an abstract | |
7370 | * ofputil_group_desc in 'gd'. | |
7371 | * | |
7372 | * Multiple group description replies can be packed into a single OpenFlow | |
7373 | * message. Calling this function multiple times for a single 'msg' iterates | |
7374 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7375 | * null and not modify them between calls. | |
7376 | * | |
7377 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7378 | * otherwise a positive errno value. */ | |
7379 | int | |
7380 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
a7a2d006 | 7381 | struct ofpbuf *msg, enum ofp_version version) |
7395c052 NZ |
7382 | { |
7383 | struct ofp11_group_desc_stats *ogds; | |
7384 | size_t length; | |
7385 | ||
cf3b7538 | 7386 | if (!msg->frame) { |
7395c052 NZ |
7387 | ofpraw_pull_assert(msg); |
7388 | } | |
7389 | ||
1f317cb5 | 7390 | if (!ofpbuf_size(msg)) { |
7395c052 NZ |
7391 | return EOF; |
7392 | } | |
7393 | ||
7394 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
7395 | if (!ogds) { | |
437d0d22 | 7396 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
1f317cb5 | 7397 | "leftover bytes at end", ofpbuf_size(msg)); |
7395c052 NZ |
7398 | return OFPERR_OFPBRC_BAD_LEN; |
7399 | } | |
7400 | gd->type = ogds->type; | |
7401 | gd->group_id = ntohl(ogds->group_id); | |
7402 | ||
7403 | length = ntohs(ogds->length); | |
1f317cb5 | 7404 | if (length < sizeof *ogds || length - sizeof *ogds > ofpbuf_size(msg)) { |
7395c052 | 7405 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 7406 | "length %"PRIuSIZE, length); |
7395c052 NZ |
7407 | return OFPERR_OFPBRC_BAD_LEN; |
7408 | } | |
7409 | ||
e3f8f887 | 7410 | return ofputil_pull_buckets(msg, length - sizeof *ogds, version, |
a7a2d006 | 7411 | &gd->buckets); |
7395c052 NZ |
7412 | } |
7413 | ||
7414 | /* Converts abstract group mod 'gm' into a message for OpenFlow version | |
7415 | * 'ofp_version' and returns the message. */ | |
7416 | struct ofpbuf * | |
7417 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
7418 | const struct ofputil_group_mod *gm) | |
7419 | { | |
7420 | struct ofpbuf *b; | |
7421 | struct ofp11_group_mod *ogm; | |
7422 | size_t start_ogm; | |
7423 | size_t start_bucket; | |
7424 | struct ofputil_bucket *bucket; | |
7425 | struct ofp11_bucket *ob; | |
7426 | ||
7427 | switch (ofp_version) { | |
7428 | case OFP10_VERSION: { | |
7429 | if (gm->command == OFPGC11_ADD) { | |
7430 | ovs_fatal(0, "add-group needs OpenFlow 1.1 or later " | |
7431 | "(\'-O OpenFlow11\')"); | |
7432 | } else if (gm->command == OFPGC11_MODIFY) { | |
7433 | ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later " | |
7434 | "(\'-O OpenFlow11\')"); | |
7435 | } else { | |
7436 | ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later " | |
7437 | "(\'-O OpenFlow11\')"); | |
7438 | } | |
7439 | } | |
7440 | ||
7441 | case OFP11_VERSION: | |
7442 | case OFP12_VERSION: | |
c37c0382 AC |
7443 | case OFP13_VERSION: |
7444 | case OFP14_VERSION: | |
42dccab5 | 7445 | case OFP15_VERSION: |
7395c052 | 7446 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
1f317cb5 | 7447 | start_ogm = ofpbuf_size(b); |
2134b5ec | 7448 | ofpbuf_put_zeros(b, sizeof *ogm); |
7395c052 NZ |
7449 | |
7450 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
1f317cb5 | 7451 | start_bucket = ofpbuf_size(b); |
2134b5ec | 7452 | ofpbuf_put_zeros(b, sizeof *ob); |
7395c052 | 7453 | if (bucket->ofpacts && bucket->ofpacts_len) { |
e3f8f887 JR |
7454 | ofpacts_put_openflow_actions(bucket->ofpacts, |
7455 | bucket->ofpacts_len, b, | |
7456 | ofp_version); | |
7395c052 NZ |
7457 | } |
7458 | ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob); | |
1f317cb5 | 7459 | ob->len = htons(ofpbuf_size(b) - start_bucket);; |
7395c052 NZ |
7460 | ob->weight = htons(bucket->weight); |
7461 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7462 | ob->watch_group = htonl(bucket->watch_group); | |
7463 | } | |
7464 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
7465 | ogm->command = htons(gm->command); | |
7466 | ogm->type = gm->type; | |
7395c052 NZ |
7467 | ogm->group_id = htonl(gm->group_id); |
7468 | ||
7469 | break; | |
7395c052 NZ |
7470 | |
7471 | default: | |
428b2edd | 7472 | OVS_NOT_REACHED(); |
7395c052 NZ |
7473 | } |
7474 | ||
7475 | return b; | |
7476 | } | |
7477 | ||
7478 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in | |
7479 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
7480 | enum ofperr | |
7481 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
7482 | struct ofputil_group_mod *gm) | |
7483 | { | |
7484 | const struct ofp11_group_mod *ogm; | |
7485 | struct ofpbuf msg; | |
e57681e5 SH |
7486 | struct ofputil_bucket *bucket; |
7487 | enum ofperr err; | |
7395c052 NZ |
7488 | |
7489 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
7490 | ofpraw_pull_assert(&msg); | |
7491 | ||
7492 | ogm = ofpbuf_pull(&msg, sizeof *ogm); | |
7493 | gm->command = ntohs(ogm->command); | |
7494 | gm->type = ogm->type; | |
7495 | gm->group_id = ntohl(ogm->group_id); | |
7496 | ||
1f317cb5 | 7497 | err = ofputil_pull_buckets(&msg, ofpbuf_size(&msg), oh->version, &gm->buckets); |
e57681e5 SH |
7498 | if (err) { |
7499 | return err; | |
7500 | } | |
7501 | ||
7502 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
7503 | switch (gm->type) { | |
7504 | case OFPGT11_ALL: | |
7505 | case OFPGT11_INDIRECT: | |
7506 | if (ofputil_bucket_has_liveness(bucket)) { | |
7507 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
7508 | } | |
7509 | break; | |
7510 | case OFPGT11_SELECT: | |
7511 | break; | |
7512 | case OFPGT11_FF: | |
7513 | if (!ofputil_bucket_has_liveness(bucket)) { | |
7514 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
7515 | } | |
7516 | break; | |
7517 | default: | |
428b2edd | 7518 | OVS_NOT_REACHED(); |
e57681e5 SH |
7519 | } |
7520 | } | |
7521 | ||
7522 | return 0; | |
7395c052 NZ |
7523 | } |
7524 | ||
64626975 SH |
7525 | /* Parse a queue status request message into 'oqsr'. |
7526 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7527 | enum ofperr | |
7528 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
7529 | struct ofputil_queue_stats_request *oqsr) | |
7530 | { | |
7531 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7532 | case OFP15_VERSION: |
c37c0382 | 7533 | case OFP14_VERSION: |
2e1ae200 | 7534 | case OFP13_VERSION: |
64626975 SH |
7535 | case OFP12_VERSION: |
7536 | case OFP11_VERSION: { | |
7537 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
7538 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
7539 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
7540 | } | |
7541 | ||
7542 | case OFP10_VERSION: { | |
7f05e7ab JR |
7543 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
7544 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 7545 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
7546 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
7547 | if (oqsr->port_no == OFPP_ALL) { | |
7548 | oqsr->port_no = OFPP_ANY; | |
7549 | } | |
64626975 SH |
7550 | return 0; |
7551 | } | |
7552 | ||
7553 | default: | |
428b2edd | 7554 | OVS_NOT_REACHED(); |
64626975 SH |
7555 | } |
7556 | } | |
7557 | ||
7558 | /* Encode a queue statsrequest for 'oqsr', the encoded message | |
7559 | * will be fore Open Flow version 'ofp_version'. Returns message | |
7560 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ | |
7561 | struct ofpbuf * | |
7562 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
7563 | const struct ofputil_queue_stats_request *oqsr) | |
7564 | { | |
7565 | struct ofpbuf *request; | |
7566 | ||
7567 | switch (ofp_version) { | |
7568 | case OFP11_VERSION: | |
2e1ae200 | 7569 | case OFP12_VERSION: |
c37c0382 | 7570 | case OFP13_VERSION: |
42dccab5 BP |
7571 | case OFP14_VERSION: |
7572 | case OFP15_VERSION: { | |
64626975 SH |
7573 | struct ofp11_queue_stats_request *req; |
7574 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
7575 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7576 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
7577 | req->queue_id = htonl(oqsr->queue_id); | |
7578 | break; | |
7579 | } | |
7580 | case OFP10_VERSION: { | |
7581 | struct ofp10_queue_stats_request *req; | |
7582 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
7583 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 7584 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
7585 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
7586 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
7587 | req->queue_id = htonl(oqsr->queue_id); |
7588 | break; | |
7589 | } | |
7590 | default: | |
428b2edd | 7591 | OVS_NOT_REACHED(); |
64626975 SH |
7592 | } |
7593 | ||
7594 | return request; | |
7595 | } | |
7596 | ||
7597 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
7598 | * message 'oh'. */ | |
7599 | size_t | |
7600 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
7601 | { | |
1bb2cdbe | 7602 | struct ofputil_queue_stats qs; |
64626975 | 7603 | struct ofpbuf b; |
1bb2cdbe | 7604 | size_t n = 0; |
64626975 SH |
7605 | |
7606 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7607 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
7608 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
7609 | n++; | |
7610 | } | |
7611 | return n; | |
64626975 SH |
7612 | } |
7613 | ||
7614 | static enum ofperr | |
7615 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
7616 | const struct ofp10_queue_stats *qs10) | |
7617 | { | |
4e022ec0 | 7618 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 7619 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
7620 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
7621 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
7622 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
7623 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
7624 | |
7625 | return 0; | |
7626 | } | |
7627 | ||
7628 | static enum ofperr | |
7629 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
7630 | const struct ofp11_queue_stats *qs11) | |
7631 | { | |
7632 | enum ofperr error; | |
7633 | ||
7634 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
7635 | if (error) { | |
7636 | return error; | |
7637 | } | |
7638 | ||
7639 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
7640 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
7641 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
7642 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
7643 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
7644 | |
7645 | return 0; | |
7646 | } | |
7647 | ||
2e1ae200 JR |
7648 | static enum ofperr |
7649 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
7650 | const struct ofp13_queue_stats *qs13) | |
7651 | { | |
6dc34a0d | 7652 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 7653 | if (!error) { |
6dc34a0d BP |
7654 | oqs->duration_sec = ntohl(qs13->duration_sec); |
7655 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
7656 | } |
7657 | ||
7658 | return error; | |
7659 | } | |
7660 | ||
1bb2cdbe BP |
7661 | static enum ofperr |
7662 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
7663 | struct ofpbuf *msg) | |
7664 | { | |
7665 | const struct ofp14_queue_stats *qs14; | |
7666 | size_t len; | |
7667 | ||
7668 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
7669 | if (!qs14) { | |
7670 | return OFPERR_OFPBRC_BAD_LEN; | |
7671 | } | |
7672 | ||
7673 | len = ntohs(qs14->length); | |
7674 | if (len < sizeof *qs14 || len - sizeof *qs14 > ofpbuf_size(msg)) { | |
7675 | return OFPERR_OFPBRC_BAD_LEN; | |
7676 | } | |
7677 | ofpbuf_pull(msg, len - sizeof *qs14); | |
7678 | ||
7679 | /* No properties yet defined, so ignore them for now. */ | |
7680 | ||
7681 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
7682 | } | |
7683 | ||
64626975 SH |
7684 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
7685 | * ofputil_queue_stats in 'qs'. | |
7686 | * | |
7687 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
7688 | * message. Calling this function multiple times for a single 'msg' iterates | |
7689 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7690 | * null and not modify them between calls. | |
7691 | * | |
7692 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7693 | * otherwise a positive errno value. */ | |
7694 | int | |
7695 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
7696 | { | |
7697 | enum ofperr error; | |
7698 | enum ofpraw raw; | |
7699 | ||
cf3b7538 JR |
7700 | error = (msg->frame |
7701 | ? ofpraw_decode(&raw, msg->frame) | |
64626975 SH |
7702 | : ofpraw_pull(&raw, msg)); |
7703 | if (error) { | |
7704 | return error; | |
7705 | } | |
7706 | ||
1f317cb5 | 7707 | if (!ofpbuf_size(msg)) { |
64626975 | 7708 | return EOF; |
1bb2cdbe BP |
7709 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
7710 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
7711 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
7712 | const struct ofp13_queue_stats *qs13; | |
7713 | ||
7714 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
7715 | if (!qs13) { | |
7716 | goto bad_len; | |
7717 | } | |
7718 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
7719 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
7720 | const struct ofp11_queue_stats *qs11; | |
7721 | ||
7722 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
7723 | if (!qs11) { | |
2e1ae200 | 7724 | goto bad_len; |
64626975 SH |
7725 | } |
7726 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
7727 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
7728 | const struct ofp10_queue_stats *qs10; | |
7729 | ||
7730 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
7731 | if (!qs10) { | |
2e1ae200 | 7732 | goto bad_len; |
64626975 SH |
7733 | } |
7734 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
7735 | } else { | |
428b2edd | 7736 | OVS_NOT_REACHED(); |
64626975 | 7737 | } |
2e1ae200 JR |
7738 | |
7739 | bad_len: | |
437d0d22 | 7740 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
1f317cb5 | 7741 | "bytes at end", ofpbuf_size(msg)); |
2e1ae200 | 7742 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
7743 | } |
7744 | ||
7745 | static void | |
7746 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
7747 | struct ofp10_queue_stats *qs10) | |
7748 | { | |
4e022ec0 | 7749 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
7750 | memset(qs10->pad, 0, sizeof qs10->pad); |
7751 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
7752 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
7753 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
7754 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
7755 | } |
7756 | ||
7757 | static void | |
7758 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
7759 | struct ofp11_queue_stats *qs11) | |
7760 | { | |
7761 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
7762 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
7763 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
7764 | qs11->tx_packets = htonll(oqs->tx_packets); | |
7765 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
7766 | } |
7767 | ||
2e1ae200 JR |
7768 | static void |
7769 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
7770 | struct ofp13_queue_stats *qs13) | |
7771 | { | |
7772 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
7773 | if (oqs->duration_sec != UINT32_MAX) { |
7774 | qs13->duration_sec = htonl(oqs->duration_sec); | |
7775 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
7776 | } else { | |
b8266395 BP |
7777 | qs13->duration_sec = OVS_BE32_MAX; |
7778 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 7779 | } |
2e1ae200 JR |
7780 | } |
7781 | ||
1bb2cdbe BP |
7782 | static void |
7783 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
7784 | struct ofp14_queue_stats *qs14) | |
7785 | { | |
7786 | qs14->length = htons(sizeof *qs14); | |
7787 | memset(qs14->pad, 0, sizeof qs14->pad); | |
7788 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
7789 | } | |
7790 | ||
7791 | ||
64626975 SH |
7792 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
7793 | void | |
7794 | ofputil_append_queue_stat(struct list *replies, | |
7795 | const struct ofputil_queue_stats *oqs) | |
7796 | { | |
e28ac5cf | 7797 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7798 | case OFP13_VERSION: { |
7799 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7800 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
7801 | break; | |
7802 | } | |
7803 | ||
64626975 SH |
7804 | case OFP12_VERSION: |
7805 | case OFP11_VERSION: { | |
2e1ae200 | 7806 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
7807 | ofputil_queue_stats_to_ofp11(oqs, reply); |
7808 | break; | |
7809 | } | |
7810 | ||
7811 | case OFP10_VERSION: { | |
2e1ae200 | 7812 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
7813 | ofputil_queue_stats_to_ofp10(oqs, reply); |
7814 | break; | |
7815 | } | |
7816 | ||
42dccab5 BP |
7817 | case OFP14_VERSION: |
7818 | case OFP15_VERSION: { | |
1bb2cdbe BP |
7819 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
7820 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 7821 | break; |
1bb2cdbe | 7822 | } |
c37c0382 | 7823 | |
64626975 | 7824 | default: |
428b2edd | 7825 | OVS_NOT_REACHED(); |
64626975 SH |
7826 | } |
7827 | } | |
777af88d AC |
7828 | |
7829 | enum ofperr | |
7830 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
7831 | struct ofputil_bundle_ctrl_msg *msg) | |
7832 | { | |
7833 | struct ofpbuf b; | |
7834 | enum ofpraw raw; | |
7835 | const struct ofp14_bundle_ctrl_msg *m; | |
7836 | ||
7837 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7838 | raw = ofpraw_pull_assert(&b); | |
7839 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
7840 | ||
7841 | m = ofpbuf_l3(&b); | |
7842 | msg->bundle_id = ntohl(m->bundle_id); | |
7843 | msg->type = ntohs(m->type); | |
7844 | msg->flags = ntohs(m->flags); | |
7845 | ||
7846 | return 0; | |
7847 | } | |
7848 | ||
7849 | struct ofpbuf * | |
7850 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
7851 | struct ofputil_bundle_ctrl_msg *msg) | |
7852 | { | |
7853 | struct ofpbuf *buf; | |
7854 | struct ofp14_bundle_ctrl_msg *m; | |
7855 | ||
7856 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
7857 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
7858 | ||
7859 | m->bundle_id = htonl(msg->bundle_id); | |
7860 | m->type = htons(msg->type); | |
7861 | m->flags = htons(msg->flags); | |
7862 | ||
7863 | return buf; | |
7864 | } | |
7865 | ||
7866 | enum ofperr | |
7867 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7868 | struct ofputil_bundle_add_msg *msg) | |
7869 | { | |
7870 | const struct ofp14_bundle_ctrl_msg *m; | |
7871 | struct ofpbuf b; | |
7872 | enum ofpraw raw; | |
7873 | size_t inner_len; | |
7874 | ||
7875 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7876 | raw = ofpraw_pull_assert(&b); | |
7877 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
7878 | ||
7879 | m = ofpbuf_pull(&b, sizeof *m); | |
7880 | msg->bundle_id = ntohl(m->bundle_id); | |
7881 | msg->flags = ntohs(m->flags); | |
7882 | ||
7883 | msg->msg = ofpbuf_data(&b); | |
7884 | inner_len = ntohs(msg->msg->length); | |
7885 | if (inner_len < sizeof(struct ofp_header) || inner_len > ofpbuf_size(&b)) { | |
7886 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
7887 | } | |
7888 | ||
7889 | return 0; | |
7890 | } | |
7891 | ||
7892 | struct ofpbuf * | |
7893 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
7894 | struct ofputil_bundle_add_msg *msg) | |
7895 | { | |
7896 | struct ofpbuf *request; | |
7897 | struct ofp14_bundle_ctrl_msg *m; | |
7898 | ||
7899 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, 0); | |
7900 | m = ofpbuf_put_zeros(request, sizeof *m); | |
7901 | ||
7902 | m->bundle_id = htonl(msg->bundle_id); | |
7903 | m->flags = htons(msg->flags); | |
7904 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
7905 | ||
7906 | return request; | |
7907 | } |