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fa37b408 | 1 | /* |
6a5490c6 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. |
fa37b408 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
03e1125c | 18 | #include <ctype.h> |
dc4762ed | 19 | #include <errno.h> |
fa37b408 | 20 | #include <inttypes.h> |
6ca00f6f ETN |
21 | #include <sys/types.h> |
22 | #include <netinet/in.h> | |
b459a924 | 23 | #include <netinet/icmp6.h> |
fa37b408 | 24 | #include <stdlib.h> |
25d436fb | 25 | #include "bitmap.h" |
daff3353 | 26 | #include "bundle.h" |
10a24935 | 27 | #include "byte-order.h" |
d8ae4d67 | 28 | #include "classifier.h" |
75a75043 | 29 | #include "learn.h" |
9e1fd49b | 30 | #include "multipath.h" |
6c038611 | 31 | #include "netdev.h" |
b6c9e612 | 32 | #include "nx-match.h" |
18ac06d3 | 33 | #include "id-pool.h" |
d271907f BW |
34 | #include "openflow/netronome-ext.h" |
35 | #include "openvswitch/dynamic-string.h" | |
36 | #include "openvswitch/meta-flow.h" | |
b598f214 | 37 | #include "openvswitch/ofp-actions.h" |
d271907f BW |
38 | #include "openvswitch/ofp-errors.h" |
39 | #include "openvswitch/ofp-msgs.h" | |
25d436fb | 40 | #include "openvswitch/ofp-print.h" |
66bd43fa | 41 | #include "openvswitch/ofp-prop.h" |
f4248336 | 42 | #include "openvswitch/ofp-util.h" |
64c96779 | 43 | #include "openvswitch/ofpbuf.h" |
d271907f BW |
44 | #include "openvswitch/type-props.h" |
45 | #include "openvswitch/vlog.h" | |
fa37b408 | 46 | #include "packets.h" |
9bfe9334 | 47 | #include "pktbuf.h" |
fa37b408 | 48 | #include "random.h" |
6159c531 | 49 | #include "tun-metadata.h" |
4ffd1b43 | 50 | #include "unaligned.h" |
d5dc60f0 | 51 | #include "uuid.h" |
fa37b408 | 52 | |
d98e6007 | 53 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
54 | |
55 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
56 | * in the peer and so there's not much point in showing a lot of them. */ | |
57 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
58 | ||
de7d3c07 SJ |
59 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
60 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
61 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
62 | ovs_be32 config, enum ofp_version); | |
63 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
64 | enum ofputil_table_eviction, | |
de7d3c07 | 65 | enum ofputil_table_vacancy, |
82c22d34 | 66 | enum ofp_version); |
3c1bb396 | 67 | |
0596e897 BP |
68 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
69 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
70 | * is wildcarded. | |
71 | * | |
72 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
73 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
74 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
75 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
76 | * wildcarded. */ | |
77 | ovs_be32 | |
78 | ofputil_wcbits_to_netmask(int wcbits) | |
79 | { | |
80 | wcbits &= 0x3f; | |
81 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
82 | } | |
83 | ||
84 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
85 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
86 | * between 0 and 32 inclusive. | |
87 | * | |
88 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
89 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
90 | int |
91 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
92 | { | |
aad29cd1 | 93 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
94 | } |
95 | ||
eec25dc1 | 96 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 97 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
98 | * responsibility to handle the special case where the flow match's dl_vlan is |
99 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 100 | void |
eec25dc1 | 101 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 102 | { |
ffe4c74f | 103 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 104 | |
81a76618 | 105 | /* Initialize most of wc. */ |
f9ba8dad | 106 | flow_wildcards_init_catchall(wc); |
bad68a99 | 107 | |
0bdc4bec | 108 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 109 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 110 | } |
5d9499c4 BP |
111 | |
112 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 113 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 114 | } |
7257b535 | 115 | |
851d3105 | 116 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 117 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 118 | } |
26720e24 BP |
119 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
120 | >> OFPFW10_NW_SRC_SHIFT); | |
121 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
122 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 123 | |
eec25dc1 | 124 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 125 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 126 | } |
eec25dc1 | 127 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 128 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
129 | } |
130 | ||
eec25dc1 | 131 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 132 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 133 | } |
eec25dc1 | 134 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 135 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 136 | } |
e2170cff | 137 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 138 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 139 | } |
d8ae4d67 | 140 | |
eb6f28db | 141 | /* VLAN TCI mask. */ |
eec25dc1 | 142 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 143 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 144 | } |
eec25dc1 | 145 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 146 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
147 | } |
148 | } | |
149 | ||
81a76618 | 150 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 151 | void |
81a76618 BP |
152 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
153 | struct match *match) | |
154 | { | |
155 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
156 | ||
157 | /* Initialize match->wc. */ | |
296e07ac | 158 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
159 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
160 | ||
161 | /* Initialize most of match->flow. */ | |
162 | match->flow.nw_src = ofmatch->nw_src; | |
163 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 164 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
165 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
166 | match->flow.tp_src = ofmatch->tp_src; | |
167 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
168 | match->flow.dl_src = ofmatch->dl_src; |
169 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
170 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
171 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 172 | |
66642cb4 | 173 | /* Translate VLANs. */ |
0c436519 | 174 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 175 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
176 | /* Match only packets without 802.1Q header. |
177 | * | |
eec25dc1 | 178 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 179 | * |
eec25dc1 | 180 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
181 | * because we can't have a specific PCP without an 802.1Q header. |
182 | * However, older versions of OVS treated this as matching packets | |
183 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
184 | match->flow.vlan_tci = htons(0); |
185 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
186 | } else { |
187 | ovs_be16 vid, pcp, tci; | |
bf062576 | 188 | uint16_t hpcp; |
47271d0d | 189 | |
81a76618 | 190 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
191 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
192 | pcp = htons(hpcp); | |
47271d0d | 193 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 194 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
195 | } |
196 | ||
d8ae4d67 | 197 | /* Clean up. */ |
81a76618 | 198 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
199 | } |
200 | ||
81a76618 | 201 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 202 | void |
81a76618 BP |
203 | ofputil_match_to_ofp10_match(const struct match *match, |
204 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 205 | { |
81a76618 | 206 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 207 | uint32_t ofpfw; |
d8ae4d67 | 208 | |
66642cb4 | 209 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 210 | ofpfw = 0; |
4e022ec0 | 211 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
212 | ofpfw |= OFPFW10_IN_PORT; |
213 | } | |
26720e24 | 214 | if (!wc->masks.dl_type) { |
27cafc5f BP |
215 | ofpfw |= OFPFW10_DL_TYPE; |
216 | } | |
26720e24 | 217 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
218 | ofpfw |= OFPFW10_NW_PROTO; |
219 | } | |
26720e24 | 220 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 221 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 222 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 223 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 224 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 225 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 226 | } |
26720e24 | 227 | if (!wc->masks.tp_src) { |
eec25dc1 | 228 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 229 | } |
26720e24 | 230 | if (!wc->masks.tp_dst) { |
eec25dc1 | 231 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 232 | } |
26720e24 | 233 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 234 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 235 | } |
26720e24 | 236 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 237 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 238 | } |
ff9d3826 | 239 | |
66642cb4 | 240 | /* Translate VLANs. */ |
81a76618 BP |
241 | ofmatch->dl_vlan = htons(0); |
242 | ofmatch->dl_vlan_pcp = 0; | |
243 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 244 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
245 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
246 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
247 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 248 | } else { |
81a76618 | 249 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 250 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 251 | } else { |
81a76618 | 252 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
253 | } |
254 | ||
81a76618 | 255 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 256 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 257 | } else { |
81a76618 | 258 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
259 | } |
260 | } | |
261 | ||
262 | /* Compose most of the match structure. */ | |
81a76618 | 263 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 264 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
265 | ofmatch->dl_src = match->flow.dl_src; |
266 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
267 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
268 | ofmatch->nw_src = match->flow.nw_src; | |
269 | ofmatch->nw_dst = match->flow.nw_dst; | |
270 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
271 | ofmatch->nw_proto = match->flow.nw_proto; | |
272 | ofmatch->tp_src = match->flow.tp_src; | |
273 | ofmatch->tp_dst = match->flow.tp_dst; | |
274 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
275 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
276 | } |
277 | ||
aa319503 | 278 | enum ofperr |
81a76618 BP |
279 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
280 | uint16_t *padded_match_len) | |
aa319503 | 281 | { |
6fd6ed71 | 282 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 283 | uint16_t match_len; |
aa319503 | 284 | |
6fd6ed71 | 285 | if (buf->size < sizeof *omh) { |
aa319503 BP |
286 | return OFPERR_OFPBMC_BAD_LEN; |
287 | } | |
288 | ||
36a16881 SH |
289 | match_len = ntohs(omh->length); |
290 | ||
aa319503 | 291 | switch (ntohs(omh->type)) { |
36a16881 SH |
292 | case OFPMT_STANDARD: { |
293 | struct ofp11_match *om; | |
294 | ||
6fd6ed71 | 295 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
296 | return OFPERR_OFPBMC_BAD_LEN; |
297 | } | |
298 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
299 | if (padded_match_len) { |
300 | *padded_match_len = match_len; | |
301 | } | |
81a76618 | 302 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
303 | } |
304 | ||
305 | case OFPMT_OXM: | |
306 | if (padded_match_len) { | |
307 | *padded_match_len = ROUND_UP(match_len, 8); | |
308 | } | |
81a76618 | 309 | return oxm_pull_match(buf, match); |
aa319503 BP |
310 | |
311 | default: | |
312 | return OFPERR_OFPBMC_BAD_TYPE; | |
313 | } | |
314 | } | |
315 | ||
3f0f48cf YT |
316 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
317 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 318 | enum ofperr |
81a76618 BP |
319 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
320 | struct match *match) | |
410698cf | 321 | { |
81a76618 | 322 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 323 | bool ipv4, arp, rarp; |
410698cf | 324 | |
81a76618 | 325 | match_init_catchall(match); |
410698cf BP |
326 | |
327 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 328 | ofp_port_t ofp_port; |
410698cf BP |
329 | enum ofperr error; |
330 | ||
81a76618 | 331 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
332 | if (error) { |
333 | return OFPERR_OFPBMC_BAD_VALUE; | |
334 | } | |
81a76618 | 335 | match_set_in_port(match, ofp_port); |
410698cf BP |
336 | } |
337 | ||
74ff3298 JR |
338 | match_set_dl_src_masked(match, ofmatch->dl_src, |
339 | eth_addr_invert(ofmatch->dl_src_mask)); | |
340 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
341 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
342 | |
343 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 344 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 345 | /* Match only packets without a VLAN tag. */ |
81a76618 | 346 | match->flow.vlan_tci = htons(0); |
b8266395 | 347 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 348 | } else { |
81a76618 | 349 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 350 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
351 | match->flow.vlan_tci = htons(VLAN_CFI); |
352 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
353 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 354 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
355 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
356 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
357 | } else { |
358 | /* Invalid VID. */ | |
359 | return OFPERR_OFPBMC_BAD_VALUE; | |
360 | } | |
361 | ||
362 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
363 | if (ofmatch->dl_vlan_pcp <= 7) { |
364 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
365 | << VLAN_PCP_SHIFT); | |
366 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
367 | } else { |
368 | /* Invalid PCP. */ | |
369 | return OFPERR_OFPBMC_BAD_VALUE; | |
370 | } | |
371 | } | |
372 | } | |
373 | } | |
374 | ||
375 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
376 | match_set_dl_type(match, |
377 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
378 | } |
379 | ||
81a76618 BP |
380 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
381 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 382 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
383 | |
384 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 385 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
386 | /* Invalid TOS. */ |
387 | return OFPERR_OFPBMC_BAD_VALUE; | |
388 | } | |
389 | ||
81a76618 | 390 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
391 | } |
392 | ||
8087f5ff | 393 | if (ipv4 || arp || rarp) { |
410698cf | 394 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 395 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 396 | } |
81a76618 BP |
397 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
398 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
399 | } |
400 | ||
401 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
402 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 403 | switch (match->flow.nw_proto) { |
410698cf BP |
404 | case IPPROTO_ICMP: |
405 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
406 | * | |
407 | * The tp_src and tp_dst fields will be ignored unless the | |
408 | * network protocol specified is as TCP, UDP or SCTP. | |
409 | * | |
410 | * but I'm pretty sure we should support ICMP too, otherwise | |
411 | * that's a regression from OF1.0. */ | |
412 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 413 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 414 | if (icmp_type < 0x100) { |
81a76618 | 415 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
416 | } else { |
417 | return OFPERR_OFPBMC_BAD_FIELD; | |
418 | } | |
419 | } | |
420 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 421 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 422 | if (icmp_code < 0x100) { |
81a76618 | 423 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
424 | } else { |
425 | return OFPERR_OFPBMC_BAD_FIELD; | |
426 | } | |
427 | } | |
428 | break; | |
429 | ||
430 | case IPPROTO_TCP: | |
431 | case IPPROTO_UDP: | |
0d56eaf2 | 432 | case IPPROTO_SCTP: |
410698cf | 433 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 434 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
435 | } |
436 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 437 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
438 | } |
439 | break; | |
440 | ||
410698cf BP |
441 | default: |
442 | /* OF1.1 says explicitly to ignore this. */ | |
443 | break; | |
444 | } | |
445 | } | |
446 | ||
b02475c5 | 447 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 448 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 449 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
450 | } |
451 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 452 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
453 | } |
454 | } | |
455 | ||
81a76618 BP |
456 | match_set_metadata_masked(match, ofmatch->metadata, |
457 | ~ofmatch->metadata_mask); | |
410698cf BP |
458 | |
459 | return 0; | |
460 | } | |
461 | ||
81a76618 | 462 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 463 | void |
81a76618 BP |
464 | ofputil_match_to_ofp11_match(const struct match *match, |
465 | struct ofp11_match *ofmatch) | |
410698cf BP |
466 | { |
467 | uint32_t wc = 0; | |
410698cf | 468 | |
81a76618 BP |
469 | memset(ofmatch, 0, sizeof *ofmatch); |
470 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
471 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 472 | |
4e022ec0 | 473 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
474 | wc |= OFPFW11_IN_PORT; |
475 | } else { | |
4e022ec0 | 476 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
477 | } |
478 | ||
74ff3298 JR |
479 | ofmatch->dl_src = match->flow.dl_src; |
480 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
481 | ofmatch->dl_dst = match->flow.dl_dst; | |
482 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 483 | |
81a76618 | 484 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 485 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
486 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
487 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
488 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
489 | wc |= OFPFW11_DL_VLAN_PCP; |
490 | } else { | |
81a76618 BP |
491 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
492 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 493 | } else { |
81a76618 | 494 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
495 | } |
496 | ||
81a76618 | 497 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
498 | wc |= OFPFW11_DL_VLAN_PCP; |
499 | } else { | |
81a76618 | 500 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
501 | } |
502 | } | |
503 | ||
81a76618 | 504 | if (!match->wc.masks.dl_type) { |
410698cf BP |
505 | wc |= OFPFW11_DL_TYPE; |
506 | } else { | |
81a76618 | 507 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
508 | } |
509 | ||
81a76618 | 510 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
511 | wc |= OFPFW11_NW_TOS; |
512 | } else { | |
81a76618 | 513 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
514 | } |
515 | ||
81a76618 | 516 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
517 | wc |= OFPFW11_NW_PROTO; |
518 | } else { | |
81a76618 | 519 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
520 | } |
521 | ||
81a76618 BP |
522 | ofmatch->nw_src = match->flow.nw_src; |
523 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
524 | ofmatch->nw_dst = match->flow.nw_dst; | |
525 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 526 | |
81a76618 | 527 | if (!match->wc.masks.tp_src) { |
410698cf BP |
528 | wc |= OFPFW11_TP_SRC; |
529 | } else { | |
81a76618 | 530 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
531 | } |
532 | ||
81a76618 | 533 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
534 | wc |= OFPFW11_TP_DST; |
535 | } else { | |
81a76618 | 536 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
537 | } |
538 | ||
8bfd0fda | 539 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
540 | wc |= OFPFW11_MPLS_LABEL; |
541 | } else { | |
8bfd0fda BP |
542 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
543 | match->flow.mpls_lse[0])); | |
097d4939 JR |
544 | } |
545 | ||
8bfd0fda | 546 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
547 | wc |= OFPFW11_MPLS_TC; |
548 | } else { | |
8bfd0fda | 549 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 550 | } |
410698cf | 551 | |
81a76618 BP |
552 | ofmatch->metadata = match->flow.metadata; |
553 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 554 | |
81a76618 | 555 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
556 | } |
557 | ||
75fa58f8 BP |
558 | /* Returns the "typical" length of a match for 'protocol', for use in |
559 | * estimating space to preallocate. */ | |
560 | int | |
561 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
562 | { | |
563 | switch (protocol) { | |
564 | case OFPUTIL_P_OF10_STD: | |
565 | case OFPUTIL_P_OF10_STD_TID: | |
566 | return sizeof(struct ofp10_match); | |
567 | ||
568 | case OFPUTIL_P_OF10_NXM: | |
569 | case OFPUTIL_P_OF10_NXM_TID: | |
570 | return NXM_TYPICAL_LEN; | |
571 | ||
572 | case OFPUTIL_P_OF11_STD: | |
573 | return sizeof(struct ofp11_match); | |
574 | ||
575 | case OFPUTIL_P_OF12_OXM: | |
576 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 577 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 578 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 579 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 BP |
580 | return NXM_TYPICAL_LEN; |
581 | ||
582 | default: | |
428b2edd | 583 | OVS_NOT_REACHED(); |
75fa58f8 BP |
584 | } |
585 | } | |
586 | ||
587 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
588 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
589 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
590 | * in OpenFlow 1.1 or later. | |
591 | * | |
592 | * This function can cause 'b''s data to be reallocated. | |
593 | * | |
594 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
595 | * returns zero. */ | |
596 | int | |
597 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
598 | enum ofputil_protocol protocol) | |
599 | { | |
600 | switch (protocol) { | |
601 | case OFPUTIL_P_OF10_STD: | |
602 | case OFPUTIL_P_OF10_STD_TID: | |
603 | case OFPUTIL_P_OF10_NXM: | |
604 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 605 | OVS_NOT_REACHED(); |
75fa58f8 BP |
606 | |
607 | case OFPUTIL_P_OF11_STD: { | |
608 | struct ofp11_match *om; | |
609 | ||
610 | /* Make sure that no padding is needed. */ | |
611 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
612 | ||
613 | om = ofpbuf_put_uninit(b, sizeof *om); | |
614 | ofputil_match_to_ofp11_match(match, om); | |
615 | return sizeof *om; | |
616 | } | |
617 | ||
618 | case OFPUTIL_P_OF12_OXM: | |
619 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 620 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 621 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 622 | case OFPUTIL_P_OF16_OXM: |
9d84066c BP |
623 | return oxm_put_match(b, match, |
624 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
625 | } |
626 | ||
428b2edd | 627 | OVS_NOT_REACHED(); |
75fa58f8 BP |
628 | } |
629 | ||
36956a7d | 630 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
631 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
632 | * structure. */ | |
36956a7d BP |
633 | ovs_be16 |
634 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
635 | { | |
636 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
637 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
638 | : flow_dl_type); | |
639 | } | |
640 | ||
eec25dc1 | 641 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
642 | * structure, returns the corresponding 'dl_type' value for use in struct |
643 | * flow. */ | |
644 | ovs_be16 | |
645 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
646 | { | |
647 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
648 | ? htons(FLOW_DL_TYPE_NONE) | |
649 | : ofp_dl_type); | |
650 | } | |
2e4f5fcf | 651 | \f |
27527aa0 | 652 | /* Protocols. */ |
7fa91113 | 653 | |
27527aa0 BP |
654 | struct proto_abbrev { |
655 | enum ofputil_protocol protocol; | |
656 | const char *name; | |
657 | }; | |
658 | ||
659 | /* Most users really don't care about some of the differences between | |
aa233d57 | 660 | * protocols. These abbreviations help with that. */ |
27527aa0 | 661 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
662 | { OFPUTIL_P_ANY, "any" }, |
663 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
664 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
665 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
666 | }; |
667 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
668 | ||
669 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
b79d45a1 | 670 | OFPUTIL_P_OF16_OXM, |
42dccab5 | 671 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 672 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 673 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 674 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 675 | OFPUTIL_P_OF11_STD, |
85813857 BP |
676 | OFPUTIL_P_OF10_NXM, |
677 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
678 | }; |
679 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
680 | ||
4f13da56 BP |
681 | /* Returns the set of ofputil_protocols that are supported with the given |
682 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
683 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
684 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 685 | enum ofputil_protocol |
4f13da56 | 686 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
687 | { |
688 | switch (version) { | |
2e3fa633 | 689 | case OFP10_VERSION: |
4f13da56 | 690 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
691 | case OFP11_VERSION: |
692 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 693 | case OFP12_VERSION: |
85813857 | 694 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
695 | case OFP13_VERSION: |
696 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
697 | case OFP14_VERSION: |
698 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
699 | case OFP15_VERSION: |
700 | return OFPUTIL_P_OF15_OXM; | |
b79d45a1 BP |
701 | case OFP16_VERSION: |
702 | return OFPUTIL_P_OF16_OXM; | |
2e3fa633 SH |
703 | default: |
704 | return 0; | |
27527aa0 BP |
705 | } |
706 | } | |
707 | ||
4f13da56 BP |
708 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
709 | * connection that has negotiated the given 'version'. 'version' should | |
710 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
711 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
712 | * outside the valid range. */ | |
713 | enum ofputil_protocol | |
714 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
715 | { | |
716 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
717 | } | |
718 | ||
44d3732d | 719 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 720 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 721 | enum ofp_version |
9e1fd49b BP |
722 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
723 | { | |
724 | switch (protocol) { | |
85813857 BP |
725 | case OFPUTIL_P_OF10_STD: |
726 | case OFPUTIL_P_OF10_STD_TID: | |
727 | case OFPUTIL_P_OF10_NXM: | |
728 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 729 | return OFP10_VERSION; |
75fa58f8 BP |
730 | case OFPUTIL_P_OF11_STD: |
731 | return OFP11_VERSION; | |
85813857 | 732 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 733 | return OFP12_VERSION; |
2e1ae200 JR |
734 | case OFPUTIL_P_OF13_OXM: |
735 | return OFP13_VERSION; | |
c37c0382 AC |
736 | case OFPUTIL_P_OF14_OXM: |
737 | return OFP14_VERSION; | |
42dccab5 BP |
738 | case OFPUTIL_P_OF15_OXM: |
739 | return OFP15_VERSION; | |
b79d45a1 BP |
740 | case OFPUTIL_P_OF16_OXM: |
741 | return OFP16_VERSION; | |
9e1fd49b BP |
742 | } |
743 | ||
428b2edd | 744 | OVS_NOT_REACHED(); |
9e1fd49b BP |
745 | } |
746 | ||
4f13da56 BP |
747 | /* Returns a bitmap of OpenFlow versions that are supported by at |
748 | * least one of the 'protocols'. */ | |
749 | uint32_t | |
750 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
751 | { | |
752 | uint32_t bitmap = 0; | |
753 | ||
754 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
755 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
756 | ||
757 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
758 | } | |
759 | ||
760 | return bitmap; | |
761 | } | |
762 | ||
763 | /* Returns the set of protocols that are supported on top of the | |
764 | * OpenFlow versions included in 'bitmap'. */ | |
765 | enum ofputil_protocol | |
766 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
767 | { | |
768 | enum ofputil_protocol protocols = 0; | |
769 | ||
770 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
771 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
772 | ||
773 | protocols |= ofputil_protocols_from_ofp_version(version); | |
774 | } | |
775 | ||
776 | return protocols; | |
777 | } | |
778 | ||
27527aa0 BP |
779 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
780 | * otherwise. */ | |
7fa91113 | 781 | bool |
27527aa0 | 782 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 783 | { |
27527aa0 BP |
784 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
785 | } | |
786 | ||
787 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
788 | * extension turned on or off if 'enable' is true or false, respectively. | |
789 | * | |
790 | * This extension is only useful for protocols whose "standard" version does | |
791 | * not allow specific tables to be modified. In particular, this is true of | |
792 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
793 | * specifies a table ID and so there is no need for such an extension. When | |
794 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
795 | * extension, this function just returns its 'protocol' argument unchanged | |
796 | * regardless of the value of 'enable'. */ | |
797 | enum ofputil_protocol | |
798 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
799 | { | |
800 | switch (protocol) { | |
85813857 BP |
801 | case OFPUTIL_P_OF10_STD: |
802 | case OFPUTIL_P_OF10_STD_TID: | |
803 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 804 | |
85813857 BP |
805 | case OFPUTIL_P_OF10_NXM: |
806 | case OFPUTIL_P_OF10_NXM_TID: | |
807 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 808 | |
75fa58f8 BP |
809 | case OFPUTIL_P_OF11_STD: |
810 | return OFPUTIL_P_OF11_STD; | |
811 | ||
85813857 BP |
812 | case OFPUTIL_P_OF12_OXM: |
813 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 814 | |
2e1ae200 JR |
815 | case OFPUTIL_P_OF13_OXM: |
816 | return OFPUTIL_P_OF13_OXM; | |
817 | ||
c37c0382 AC |
818 | case OFPUTIL_P_OF14_OXM: |
819 | return OFPUTIL_P_OF14_OXM; | |
820 | ||
42dccab5 BP |
821 | case OFPUTIL_P_OF15_OXM: |
822 | return OFPUTIL_P_OF15_OXM; | |
823 | ||
b79d45a1 BP |
824 | case OFPUTIL_P_OF16_OXM: |
825 | return OFPUTIL_P_OF16_OXM; | |
826 | ||
27527aa0 | 827 | default: |
428b2edd | 828 | OVS_NOT_REACHED(); |
7fa91113 | 829 | } |
27527aa0 | 830 | } |
7fa91113 | 831 | |
27527aa0 BP |
832 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
833 | * some extension to a standard protocol version, the return value is the | |
834 | * standard version of that protocol without any extension. If 'protocol' is a | |
835 | * standard protocol version, returns 'protocol' unchanged. */ | |
836 | enum ofputil_protocol | |
837 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
838 | { | |
839 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
840 | } |
841 | ||
27527aa0 BP |
842 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
843 | enum ofputil_protocol | |
844 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
845 | enum ofputil_protocol new_base) | |
7fa91113 | 846 | { |
27527aa0 BP |
847 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
848 | ||
849 | switch (new_base) { | |
85813857 BP |
850 | case OFPUTIL_P_OF10_STD: |
851 | case OFPUTIL_P_OF10_STD_TID: | |
852 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 853 | |
85813857 BP |
854 | case OFPUTIL_P_OF10_NXM: |
855 | case OFPUTIL_P_OF10_NXM_TID: | |
856 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 857 | |
75fa58f8 BP |
858 | case OFPUTIL_P_OF11_STD: |
859 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
860 | ||
85813857 BP |
861 | case OFPUTIL_P_OF12_OXM: |
862 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 863 | |
2e1ae200 JR |
864 | case OFPUTIL_P_OF13_OXM: |
865 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
866 | ||
c37c0382 AC |
867 | case OFPUTIL_P_OF14_OXM: |
868 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
869 | ||
42dccab5 BP |
870 | case OFPUTIL_P_OF15_OXM: |
871 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
872 | ||
b79d45a1 BP |
873 | case OFPUTIL_P_OF16_OXM: |
874 | return ofputil_protocol_set_tid(OFPUTIL_P_OF16_OXM, tid); | |
875 | ||
7fa91113 | 876 | default: |
428b2edd | 877 | OVS_NOT_REACHED(); |
7fa91113 BP |
878 | } |
879 | } | |
880 | ||
27527aa0 BP |
881 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
882 | * 'protocol' is either a single protocol or it is a combination of protocols | |
883 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
884 | const char * | |
885 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 886 | { |
27527aa0 BP |
887 | const struct proto_abbrev *p; |
888 | ||
889 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
890 | * warning if we forget any. */ | |
891 | switch (protocol) { | |
85813857 | 892 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
893 | return "NXM-table_id"; |
894 | ||
85813857 | 895 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
896 | return "NXM+table_id"; |
897 | ||
85813857 | 898 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
899 | return "OpenFlow10-table_id"; |
900 | ||
85813857 | 901 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 902 | return "OpenFlow10+table_id"; |
44d3732d | 903 | |
75fa58f8 BP |
904 | case OFPUTIL_P_OF11_STD: |
905 | return "OpenFlow11"; | |
906 | ||
85813857 | 907 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 908 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
909 | |
910 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 911 | return "OXM-OpenFlow13"; |
c37c0382 AC |
912 | |
913 | case OFPUTIL_P_OF14_OXM: | |
914 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
915 | |
916 | case OFPUTIL_P_OF15_OXM: | |
917 | return "OXM-OpenFlow15"; | |
b79d45a1 BP |
918 | |
919 | case OFPUTIL_P_OF16_OXM: | |
920 | return "OXM-OpenFlow16"; | |
27527aa0 BP |
921 | } |
922 | ||
923 | /* Check abbreviations. */ | |
924 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
925 | if (protocol == p->protocol) { | |
926 | return p->name; | |
927 | } | |
928 | } | |
929 | ||
930 | return NULL; | |
931 | } | |
932 | ||
933 | /* Returns a string that represents 'protocols'. The return value might be a | |
934 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
935 | * value is "none" if 'protocols' is 0. | |
936 | * | |
937 | * The caller must free the returned string (with free()). */ | |
938 | char * | |
939 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
940 | { | |
941 | struct ds s; | |
942 | ||
cb22974d | 943 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
944 | if (protocols == 0) { |
945 | return xstrdup("none"); | |
946 | } | |
947 | ||
948 | ds_init(&s); | |
949 | while (protocols) { | |
950 | const struct proto_abbrev *p; | |
951 | int i; | |
952 | ||
953 | if (s.length) { | |
954 | ds_put_char(&s, ','); | |
955 | } | |
956 | ||
957 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
958 | if ((protocols & p->protocol) == p->protocol) { | |
959 | ds_put_cstr(&s, p->name); | |
960 | protocols &= ~p->protocol; | |
961 | goto match; | |
962 | } | |
963 | } | |
964 | ||
965 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
966 | enum ofputil_protocol bit = 1u << i; | |
967 | ||
968 | if (protocols & bit) { | |
969 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
970 | protocols &= ~bit; | |
971 | goto match; | |
972 | } | |
973 | } | |
428b2edd | 974 | OVS_NOT_REACHED(); |
27527aa0 BP |
975 | |
976 | match: ; | |
977 | } | |
978 | return ds_steal_cstr(&s); | |
979 | } | |
980 | ||
981 | static enum ofputil_protocol | |
982 | ofputil_protocol_from_string__(const char *s, size_t n) | |
983 | { | |
984 | const struct proto_abbrev *p; | |
985 | int i; | |
986 | ||
987 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
988 | enum ofputil_protocol bit = 1u << i; | |
989 | const char *name = ofputil_protocol_to_string(bit); | |
990 | ||
991 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
992 | return bit; | |
993 | } | |
994 | } | |
995 | ||
996 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
997 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
998 | return p->protocol; | |
999 | } | |
1000 | } | |
1001 | ||
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1006 | * single protocol name or abbreviation or a comma-separated list of them. | |
1007 | * | |
1008 | * Aborts the program with an error message if 's' is invalid. */ | |
1009 | enum ofputil_protocol | |
1010 | ofputil_protocols_from_string(const char *s) | |
1011 | { | |
1012 | const char *orig_s = s; | |
1013 | enum ofputil_protocol protocols; | |
1014 | ||
1015 | protocols = 0; | |
1016 | while (*s) { | |
1017 | enum ofputil_protocol p; | |
1018 | size_t n; | |
1019 | ||
1020 | n = strcspn(s, ","); | |
1021 | if (n == 0) { | |
1022 | s++; | |
1023 | continue; | |
1024 | } | |
1025 | ||
1026 | p = ofputil_protocol_from_string__(s, n); | |
1027 | if (!p) { | |
1028 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1029 | } | |
1030 | protocols |= p; | |
1031 | ||
1032 | s += n; | |
1033 | } | |
1034 | ||
1035 | if (!protocols) { | |
1036 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1037 | } | |
1038 | return protocols; | |
88ca35ee BP |
1039 | } |
1040 | ||
9d84066c | 1041 | enum ofp_version |
03e1125c SH |
1042 | ofputil_version_from_string(const char *s) |
1043 | { | |
1044 | if (!strcasecmp(s, "OpenFlow10")) { | |
1045 | return OFP10_VERSION; | |
1046 | } | |
1047 | if (!strcasecmp(s, "OpenFlow11")) { | |
1048 | return OFP11_VERSION; | |
1049 | } | |
1050 | if (!strcasecmp(s, "OpenFlow12")) { | |
1051 | return OFP12_VERSION; | |
1052 | } | |
2e1ae200 JR |
1053 | if (!strcasecmp(s, "OpenFlow13")) { |
1054 | return OFP13_VERSION; | |
1055 | } | |
c37c0382 AC |
1056 | if (!strcasecmp(s, "OpenFlow14")) { |
1057 | return OFP14_VERSION; | |
1058 | } | |
42dccab5 BP |
1059 | if (!strcasecmp(s, "OpenFlow15")) { |
1060 | return OFP15_VERSION; | |
1061 | } | |
b79d45a1 BP |
1062 | if (!strcasecmp(s, "OpenFlow16")) { |
1063 | return OFP16_VERSION; | |
1064 | } | |
7beaa082 | 1065 | return 0; |
03e1125c SH |
1066 | } |
1067 | ||
1068 | static bool | |
e091ef84 | 1069 | is_delimiter(unsigned char c) |
03e1125c SH |
1070 | { |
1071 | return isspace(c) || c == ','; | |
1072 | } | |
1073 | ||
1074 | uint32_t | |
1075 | ofputil_versions_from_string(const char *s) | |
1076 | { | |
1077 | size_t i = 0; | |
1078 | uint32_t bitmap = 0; | |
1079 | ||
1080 | while (s[i]) { | |
1081 | size_t j; | |
7beaa082 | 1082 | int version; |
03e1125c SH |
1083 | char *key; |
1084 | ||
1085 | if (is_delimiter(s[i])) { | |
1086 | i++; | |
1087 | continue; | |
1088 | } | |
1089 | j = 0; | |
1090 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1091 | j++; | |
1092 | } | |
1093 | key = xmemdup0(s + i, j); | |
1094 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1095 | if (!version) { |
1096 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1097 | } | |
03e1125c SH |
1098 | free(key); |
1099 | bitmap |= 1u << version; | |
1100 | i += j; | |
1101 | } | |
1102 | ||
1103 | return bitmap; | |
1104 | } | |
1105 | ||
7beaa082 SH |
1106 | uint32_t |
1107 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1108 | { | |
1109 | uint32_t bitmap = 0; | |
1110 | ||
1111 | while (count--) { | |
1112 | int version = ofputil_version_from_string(s[count]); | |
1113 | if (!version) { | |
1114 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1115 | } else { | |
1116 | bitmap |= 1u << version; | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | return bitmap; | |
1121 | } | |
1122 | ||
03e1125c SH |
1123 | const char * |
1124 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1125 | { | |
1126 | switch (ofp_version) { | |
1127 | case OFP10_VERSION: | |
1128 | return "OpenFlow10"; | |
1129 | case OFP11_VERSION: | |
1130 | return "OpenFlow11"; | |
1131 | case OFP12_VERSION: | |
1132 | return "OpenFlow12"; | |
2e1ae200 JR |
1133 | case OFP13_VERSION: |
1134 | return "OpenFlow13"; | |
c37c0382 AC |
1135 | case OFP14_VERSION: |
1136 | return "OpenFlow14"; | |
42dccab5 BP |
1137 | case OFP15_VERSION: |
1138 | return "OpenFlow15"; | |
b79d45a1 BP |
1139 | case OFP16_VERSION: |
1140 | return "OpenFlow16"; | |
03e1125c | 1141 | default: |
428b2edd | 1142 | OVS_NOT_REACHED(); |
03e1125c SH |
1143 | } |
1144 | } | |
1145 | ||
54834960 EJ |
1146 | bool |
1147 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1148 | { | |
1149 | switch (packet_in_format) { | |
6409e008 BP |
1150 | case NXPIF_STANDARD: |
1151 | case NXPIF_NXT_PACKET_IN: | |
1152 | case NXPIF_NXT_PACKET_IN2: | |
54834960 EJ |
1153 | return true; |
1154 | } | |
1155 | ||
1156 | return false; | |
1157 | } | |
1158 | ||
1159 | const char * | |
1160 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1161 | { | |
1162 | switch (packet_in_format) { | |
6409e008 BP |
1163 | case NXPIF_STANDARD: |
1164 | return "standard"; | |
1165 | case NXPIF_NXT_PACKET_IN: | |
1166 | return "nxt_packet_in"; | |
1167 | case NXPIF_NXT_PACKET_IN2: | |
1168 | return "nxt_packet_in2"; | |
54834960 | 1169 | default: |
428b2edd | 1170 | OVS_NOT_REACHED(); |
54834960 EJ |
1171 | } |
1172 | } | |
1173 | ||
1174 | int | |
1175 | ofputil_packet_in_format_from_string(const char *s) | |
1176 | { | |
6409e008 BP |
1177 | return (!strcmp(s, "standard") || !strcmp(s, "openflow10") |
1178 | ? NXPIF_STANDARD | |
1179 | : !strcmp(s, "nxt_packet_in") || !strcmp(s, "nxm") | |
1180 | ? NXPIF_NXT_PACKET_IN | |
1181 | : !strcmp(s, "nxt_packet_in2") | |
1182 | ? NXPIF_NXT_PACKET_IN2 | |
54834960 EJ |
1183 | : -1); |
1184 | } | |
1185 | ||
03e1125c SH |
1186 | void |
1187 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1188 | { | |
8989046d | 1189 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1190 | } |
1191 | ||
1192 | void | |
1193 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1194 | { | |
1195 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1196 | } | |
1197 | ||
1198 | static void | |
1199 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1200 | void (*format_version)(struct ds *msg, | |
1201 | enum ofp_version)) | |
1202 | { | |
1203 | while (bitmap) { | |
1204 | format_version(msg, raw_ctz(bitmap)); | |
1205 | bitmap = zero_rightmost_1bit(bitmap); | |
1206 | if (bitmap) { | |
1207 | ds_put_cstr(msg, ", "); | |
1208 | } | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | void | |
1213 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1214 | { | |
1215 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1216 | } | |
1217 | ||
1218 | void | |
1219 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1220 | { | |
1221 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1222 | } | |
1223 | ||
de6c85b0 SH |
1224 | static bool |
1225 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1226 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1227 | { |
1228 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1229 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1230 | uint32_t allowed_versions; |
de6c85b0 SH |
1231 | |
1232 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1233 | return false; | |
1234 | } | |
1235 | ||
1236 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1237 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1238 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1239 | * wire-protocol versions greater than 31. |
1240 | */ | |
0935de41 | 1241 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1242 | |
0935de41 | 1243 | if (allowed_versions & 1) { |
de6c85b0 SH |
1244 | /* There's no OpenFlow version 0. */ |
1245 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1246 | "version 0x00"); | |
0935de41 | 1247 | allowed_versions &= ~1u; |
de6c85b0 SH |
1248 | } |
1249 | ||
0935de41 | 1250 | if (!allowed_versions) { |
de6c85b0 SH |
1251 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1252 | "version (between 0x01 and 0x1f)"); | |
1253 | return false; | |
1254 | } | |
1255 | ||
0935de41 | 1256 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1257 | return true; |
1258 | } | |
1259 | ||
1260 | static uint32_t | |
1261 | version_bitmap_from_version(uint8_t ofp_version) | |
1262 | { | |
1263 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1264 | } | |
1265 | ||
1266 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1267 | * the set of OpenFlow versions for which 'oh' announces support. | |
1268 | * | |
1269 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1270 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1271 | * returns false if 'oh' contains some data that could not be fully understood, | |
1272 | * true if 'oh' was completely parsed. */ | |
1273 | bool | |
1274 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1275 | { | |
0a2869d5 | 1276 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
de6c85b0 SH |
1277 | ofpbuf_pull(&msg, sizeof *oh); |
1278 | ||
1279 | *allowed_versions = version_bitmap_from_version(oh->version); | |
0a2869d5 BP |
1280 | |
1281 | bool ok = true; | |
6fd6ed71 | 1282 | while (msg.size) { |
de6c85b0 SH |
1283 | const struct ofp_hello_elem_header *oheh; |
1284 | unsigned int len; | |
1285 | ||
6fd6ed71 | 1286 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1287 | return false; |
1288 | } | |
1289 | ||
6fd6ed71 | 1290 | oheh = msg.data; |
de6c85b0 SH |
1291 | len = ntohs(oheh->length); |
1292 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1293 | return false; | |
1294 | } | |
1295 | ||
1296 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1297 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1298 | ok = false; | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | return ok; | |
1303 | } | |
1304 | ||
1305 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1306 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1307 | static bool |
de6c85b0 SH |
1308 | should_send_version_bitmap(uint32_t allowed_versions) |
1309 | { | |
1310 | return !is_pow2((allowed_versions >> 1) + 1); | |
1311 | } | |
1312 | ||
1313 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1314 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1315 | struct ofpbuf * | |
1316 | ofputil_encode_hello(uint32_t allowed_versions) | |
1317 | { | |
1318 | enum ofp_version ofp_version; | |
1319 | struct ofpbuf *msg; | |
1320 | ||
1321 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1322 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1323 | ||
1324 | if (should_send_version_bitmap(allowed_versions)) { | |
1325 | struct ofp_hello_elem_header *oheh; | |
1326 | uint16_t map_len; | |
1327 | ||
74c4b9c1 | 1328 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1329 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1330 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1331 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1332 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1333 | |
1334 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1335 | } |
1336 | ||
1337 | return msg; | |
1338 | } | |
1339 | ||
27527aa0 BP |
1340 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1341 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1342 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1343 | * connection if the switch processes the returned message correctly. (If | |
1344 | * '*next != want' then the caller will have to iterate.) | |
1345 | * | |
e43928f2 BP |
1346 | * If 'current == want', or if it is not possible to transition from 'current' |
1347 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1348 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1349 | struct ofpbuf * |
1350 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1351 | enum ofputil_protocol want, | |
1352 | enum ofputil_protocol *next) | |
1353 | { | |
e43928f2 | 1354 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1355 | enum ofputil_protocol cur_base, want_base; |
1356 | bool cur_tid, want_tid; | |
1357 | ||
e43928f2 BP |
1358 | cur_version = ofputil_protocol_to_ofp_version(current); |
1359 | want_version = ofputil_protocol_to_ofp_version(want); | |
1360 | if (cur_version != want_version) { | |
1361 | *next = current; | |
1362 | return NULL; | |
1363 | } | |
1364 | ||
27527aa0 BP |
1365 | cur_base = ofputil_protocol_to_base(current); |
1366 | want_base = ofputil_protocol_to_base(want); | |
1367 | if (cur_base != want_base) { | |
1368 | *next = ofputil_protocol_set_base(current, want_base); | |
1369 | ||
1370 | switch (want_base) { | |
85813857 | 1371 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1372 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1373 | ||
85813857 | 1374 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1375 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1376 | ||
75fa58f8 | 1377 | case OFPUTIL_P_OF11_STD: |
85813857 | 1378 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1379 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1380 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1381 | case OFPUTIL_P_OF15_OXM: |
b79d45a1 | 1382 | case OFPUTIL_P_OF16_OXM: |
75fa58f8 | 1383 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1384 | * verified above that we're not trying to change versions. */ |
428b2edd | 1385 | OVS_NOT_REACHED(); |
44d3732d | 1386 | |
85813857 BP |
1387 | case OFPUTIL_P_OF10_STD_TID: |
1388 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1389 | OVS_NOT_REACHED(); |
27527aa0 BP |
1390 | } |
1391 | } | |
1392 | ||
1393 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1394 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1395 | if (cur_tid != want_tid) { | |
1396 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1397 | return ofputil_make_flow_mod_table_id(want_tid); | |
1398 | } | |
1399 | ||
cb22974d | 1400 | ovs_assert(current == want); |
27527aa0 BP |
1401 | |
1402 | *next = current; | |
1403 | return NULL; | |
88ca35ee BP |
1404 | } |
1405 | ||
27527aa0 BP |
1406 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1407 | * format to 'nxff'. */ | |
88ca35ee | 1408 | struct ofpbuf * |
27527aa0 | 1409 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1410 | { |
73dbf4ab | 1411 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1412 | struct ofpbuf *msg; |
1413 | ||
cb22974d | 1414 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1415 | |
982697a4 BP |
1416 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1417 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1418 | sff->format = htonl(nxff); |
88ca35ee BP |
1419 | |
1420 | return msg; | |
1421 | } | |
1422 | ||
27527aa0 BP |
1423 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1424 | * otherwise. */ | |
1425 | enum ofputil_protocol | |
1426 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1427 | { | |
1428 | switch (flow_format) { | |
1429 | case NXFF_OPENFLOW10: | |
85813857 | 1430 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1431 | |
1432 | case NXFF_NXM: | |
85813857 | 1433 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1434 | |
1435 | default: | |
1436 | return 0; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1441 | bool | |
1442 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1443 | { | |
1444 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1445 | } | |
1446 | ||
1447 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1448 | * value. */ | |
1449 | const char * | |
1450 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1451 | { | |
1452 | switch (flow_format) { | |
1453 | case NXFF_OPENFLOW10: | |
1454 | return "openflow10"; | |
1455 | case NXFF_NXM: | |
1456 | return "nxm"; | |
1457 | default: | |
428b2edd | 1458 | OVS_NOT_REACHED(); |
27527aa0 BP |
1459 | } |
1460 | } | |
1461 | ||
54834960 | 1462 | struct ofpbuf * |
3f4a1939 SH |
1463 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1464 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1465 | { |
73dbf4ab | 1466 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1467 | struct ofpbuf *msg; |
1468 | ||
3f4a1939 | 1469 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1470 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1471 | spif->format = htonl(packet_in_format); |
1472 | ||
1473 | return msg; | |
1474 | } | |
1475 | ||
6c1491fb BP |
1476 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1477 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1478 | struct ofpbuf * | |
1479 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1480 | { | |
73dbf4ab | 1481 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1482 | struct ofpbuf *msg; |
1483 | ||
982697a4 BP |
1484 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1485 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1486 | nfmti->set = flow_mod_table_id; |
1487 | return msg; | |
1488 | } | |
1489 | ||
0fb88c18 BP |
1490 | struct ofputil_flow_mod_flag { |
1491 | uint16_t raw_flag; | |
1492 | enum ofp_version min_version, max_version; | |
1493 | enum ofputil_flow_mod_flags flag; | |
1494 | }; | |
1495 | ||
1496 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1497 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1498 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1499 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1500 | OFPUTIL_FF_EMERG }, | |
1501 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1502 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1503 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1504 | { 0, 0, 0, 0 }, | |
1505 | }; | |
1506 | ||
1507 | static enum ofperr | |
1508 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1509 | enum ofp_flow_mod_command command, | |
1510 | enum ofp_version version, | |
1511 | enum ofputil_flow_mod_flags *flagsp) | |
1512 | { | |
1513 | uint16_t raw_flags = ntohs(raw_flags_); | |
1514 | const struct ofputil_flow_mod_flag *f; | |
1515 | ||
1516 | *flagsp = 0; | |
1517 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1518 | if (raw_flags & f->raw_flag | |
1519 | && version >= f->min_version | |
1520 | && (!f->max_version || version <= f->max_version)) { | |
1521 | raw_flags &= ~f->raw_flag; | |
1522 | *flagsp |= f->flag; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1527 | * never do. | |
1528 | * | |
1529 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1530 | * resets counters. */ | |
1531 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1532 | && command == OFPFC_ADD) { | |
1533 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1534 | } | |
1535 | ||
1536 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1537 | } | |
1538 | ||
1539 | static ovs_be16 | |
1540 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1541 | enum ofp_version version) | |
1542 | { | |
1543 | const struct ofputil_flow_mod_flag *f; | |
1544 | uint16_t raw_flags; | |
1545 | ||
1546 | raw_flags = 0; | |
1547 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1548 | if (f->flag & flags | |
1549 | && version >= f->min_version | |
1550 | && (!f->max_version || version <= f->max_version)) { | |
1551 | raw_flags |= f->raw_flag; | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | return htons(raw_flags); | |
1556 | } | |
1557 | ||
7fa91113 BP |
1558 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1559 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1560 | * code. | |
1561 | * | |
f25d0cf3 BP |
1562 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1563 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1564 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1565 | * | |
1566 | * Does not validate the flow_mod actions. The caller should do that, with | |
1567 | * ofpacts_check(). */ | |
90bf1e07 | 1568 | enum ofperr |
a9a2da38 | 1569 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1570 | const struct ofp_header *oh, |
f25d0cf3 | 1571 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1572 | struct ofpbuf *ofpacts, |
1573 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1574 | { |
0fb88c18 BP |
1575 | ovs_be16 raw_flags; |
1576 | enum ofperr error; | |
2e4f5fcf | 1577 | |
cc40d06b SH |
1578 | /* Ignored for non-delete actions */ |
1579 | fm->delete_reason = OFPRR_DELETE; | |
1580 | ||
0a2869d5 BP |
1581 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
1582 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
aa319503 | 1583 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1584 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1585 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1586 | |
bbc32a88 | 1587 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1588 | |
81a76618 | 1589 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1590 | if (error) { |
1591 | return error; | |
1c0b7503 BP |
1592 | } |
1593 | ||
2e4f5fcf | 1594 | /* Translate the message. */ |
81a76618 | 1595 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1596 | if (ofm->command == OFPFC_ADD |
1597 | || (oh->version == OFP11_VERSION | |
1598 | && (ofm->command == OFPFC_MODIFY || | |
1599 | ofm->command == OFPFC_MODIFY_STRICT) | |
1600 | && ofm->cookie_mask == htonll(0))) { | |
1601 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1602 | * not match on the cookie is treated as an "add" if there is no | |
1603 | * match. */ | |
aa319503 BP |
1604 | fm->cookie = htonll(0); |
1605 | fm->cookie_mask = htonll(0); | |
1606 | fm->new_cookie = ofm->cookie; | |
1607 | } else { | |
aa319503 BP |
1608 | fm->cookie = ofm->cookie; |
1609 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1610 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1611 | } |
23342857 | 1612 | fm->modify_cookie = false; |
aa319503 | 1613 | fm->command = ofm->command; |
0e197060 BP |
1614 | |
1615 | /* Get table ID. | |
1616 | * | |
083761ad SH |
1617 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1618 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1619 | fm->table_id = ofm->table_id; |
083761ad | 1620 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1621 | && (oh->version == OFP11_VERSION |
1622 | || (ofm->command != OFPFC_DELETE && | |
1623 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1624 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1625 | } | |
1626 | ||
2e4f5fcf BP |
1627 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1628 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1629 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1630 | fm->importance = ntohs(ofm->importance); | |
1631 | } else { | |
1632 | fm->importance = 0; | |
1633 | } | |
2e4f5fcf | 1634 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1635 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1636 | if (error) { |
1637 | return error; | |
1638 | } | |
7395c052 | 1639 | |
1fe4c0a0 BP |
1640 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1641 | ofm->command == OFPFC_DELETE_STRICT | |
1642 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1643 | : OFPG_ANY); |
0fb88c18 | 1644 | raw_flags = ofm->flags; |
aa319503 | 1645 | } else { |
0fb88c18 BP |
1646 | uint16_t command; |
1647 | ||
aa319503 BP |
1648 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1649 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1650 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1651 | |
1652 | /* Get the ofp10_flow_mod. */ | |
1653 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1654 | ||
aa319503 | 1655 | /* Translate the rule. */ |
81a76618 BP |
1656 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1657 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1658 | |
81a76618 BP |
1659 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1660 | * highest possible priority. */ | |
1661 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1662 | ? ntohs(ofm->priority) | |
1663 | : UINT16_MAX); | |
1664 | ||
aa319503 BP |
1665 | /* Translate the message. */ |
1666 | command = ntohs(ofm->command); | |
1667 | fm->cookie = htonll(0); | |
1668 | fm->cookie_mask = htonll(0); | |
1669 | fm->new_cookie = ofm->cookie; | |
1670 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1671 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1672 | fm->importance = 0; |
aa319503 | 1673 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1674 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1675 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1676 | raw_flags = ofm->flags; |
aa319503 BP |
1677 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1678 | /* Nicira extended flow_mod. */ | |
1679 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1680 | |
1681 | /* Dissect the message. */ | |
1682 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1683 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1684 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1685 | if (error) { |
1686 | return error; | |
1687 | } | |
aa319503 BP |
1688 | |
1689 | /* Translate the message. */ | |
1690 | command = ntohs(nfm->command); | |
1691 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1692 | /* Flow additions may only set a new cookie, not match an | |
1693 | * existing cookie. */ | |
1694 | return OFPERR_NXBRC_NXM_INVALID; | |
1695 | } | |
81a76618 | 1696 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1697 | fm->new_cookie = nfm->cookie; |
1698 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1699 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1700 | fm->importance = 0; |
aa319503 | 1701 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1702 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1703 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1704 | raw_flags = nfm->flags; |
aa319503 | 1705 | } else { |
428b2edd | 1706 | OVS_NOT_REACHED(); |
aa319503 BP |
1707 | } |
1708 | ||
b8266395 | 1709 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1710 | if (protocol & OFPUTIL_P_TID) { |
1711 | fm->command = command & 0xff; | |
1712 | fm->table_id = command >> 8; | |
1713 | } else { | |
1f42be1c JR |
1714 | if (command > 0xff) { |
1715 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1716 | "but flow_mod_table_id extension is not enabled"); | |
1717 | } | |
aa319503 BP |
1718 | fm->command = command; |
1719 | fm->table_id = 0xff; | |
e729e793 | 1720 | } |
2e4f5fcf BP |
1721 | } |
1722 | ||
1f42be1c JR |
1723 | if (fm->command > OFPFC_DELETE_STRICT) { |
1724 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1725 | } | |
1726 | ||
6fd6ed71 | 1727 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1728 | oh->version, ofpacts); |
1729 | if (error) { | |
1730 | return error; | |
1731 | } | |
6fd6ed71 PS |
1732 | fm->ofpacts = ofpacts->data; |
1733 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1734 | |
0fb88c18 BP |
1735 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1736 | oh->version, &fm->flags); | |
1737 | if (error) { | |
1738 | return error; | |
1739 | } | |
1740 | ||
1741 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1742 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1743 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1744 | * | |
1745 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1746 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1747 | * code, so just state that the flow table is full. */ | |
1748 | return (fm->hard_timeout || fm->idle_timeout | |
1749 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1750 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1751 | } | |
1752 | ||
ba2fe8e9 BP |
1753 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1754 | &fm->match.flow, max_port, | |
1755 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1756 | } |
1757 | ||
638a19b0 JR |
1758 | static enum ofperr |
1759 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1760 | struct ofpbuf *bands) | |
1761 | { | |
1762 | const struct ofp13_meter_band_header *ombh; | |
1763 | struct ofputil_meter_band *mb; | |
1764 | uint16_t n = 0; | |
1765 | ||
1766 | ombh = ofpbuf_try_pull(msg, len); | |
1767 | if (!ombh) { | |
1768 | return OFPERR_OFPBRC_BAD_LEN; | |
1769 | } | |
1770 | ||
1771 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1772 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1773 | /* All supported band types have the same length. */ |
638a19b0 JR |
1774 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1775 | return OFPERR_OFPBRC_BAD_LEN; | |
1776 | } | |
1777 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1778 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1779 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1780 | return OFPERR_OFPMMFC_BAD_BAND; | |
1781 | } | |
638a19b0 JR |
1782 | mb->rate = ntohl(ombh->rate); |
1783 | mb->burst_size = ntohl(ombh->burst_size); | |
1784 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1785 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1786 | n++; | |
1787 | len -= ombh_len; | |
db5a1019 AW |
1788 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1789 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1790 | } |
1791 | if (len) { | |
1792 | return OFPERR_OFPBRC_BAD_LEN; | |
1793 | } | |
1794 | *n_bands = n; | |
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | enum ofperr | |
1799 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1800 | struct ofputil_meter_mod *mm, | |
1801 | struct ofpbuf *bands) | |
1802 | { | |
0a2869d5 | 1803 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
638a19b0 | 1804 | ofpraw_pull_assert(&b); |
0a2869d5 | 1805 | const struct ofp13_meter_mod *omm = ofpbuf_pull(&b, sizeof *omm); |
638a19b0 JR |
1806 | |
1807 | /* Translate the message. */ | |
1808 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1809 | if (mm->command != OFPMC13_ADD && |
1810 | mm->command != OFPMC13_MODIFY && | |
1811 | mm->command != OFPMC13_DELETE) { | |
1812 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1813 | } | |
638a19b0 JR |
1814 | mm->meter.meter_id = ntohl(omm->meter_id); |
1815 | ||
1816 | if (mm->command == OFPMC13_DELETE) { | |
1817 | mm->meter.flags = 0; | |
1818 | mm->meter.n_bands = 0; | |
1819 | mm->meter.bands = NULL; | |
1820 | } else { | |
1821 | enum ofperr error; | |
1822 | ||
1823 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1824 | if (mm->meter.flags & OFPMF13_KBPS && |
1825 | mm->meter.flags & OFPMF13_PKTPS) { | |
1826 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1827 | } | |
6fd6ed71 | 1828 | mm->meter.bands = bands->data; |
638a19b0 | 1829 | |
6fd6ed71 | 1830 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1831 | if (error) { |
1832 | return error; | |
1833 | } | |
1834 | } | |
1835 | return 0; | |
1836 | } | |
1837 | ||
1838 | void | |
1839 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1840 | { | |
1841 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1842 | *meter_id = ntohl(omr->meter_id); | |
1843 | } | |
1844 | ||
1845 | struct ofpbuf * | |
1846 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1847 | enum ofputil_meter_request_type type, | |
1848 | uint32_t meter_id) | |
1849 | { | |
1850 | struct ofpbuf *msg; | |
1851 | ||
1852 | enum ofpraw raw; | |
1853 | ||
1854 | switch (type) { | |
1855 | case OFPUTIL_METER_CONFIG: | |
1856 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1857 | break; | |
1858 | case OFPUTIL_METER_STATS: | |
1859 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1860 | break; | |
1861 | default: | |
1862 | case OFPUTIL_METER_FEATURES: | |
1863 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1864 | break; | |
1865 | } | |
1866 | ||
1867 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1868 | ||
1869 | if (type != OFPUTIL_METER_FEATURES) { | |
1870 | struct ofp13_meter_multipart_request *omr; | |
1871 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1872 | omr->meter_id = htonl(meter_id); | |
1873 | } | |
1874 | return msg; | |
1875 | } | |
1876 | ||
1877 | static void | |
1878 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1879 | struct ofpbuf *msg) | |
1880 | { | |
1881 | uint16_t n = 0; | |
1882 | ||
1883 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1884 | /* Currently all band types have same size. */ |
638a19b0 JR |
1885 | struct ofp13_meter_band_dscp_remark *ombh; |
1886 | size_t ombh_len = sizeof *ombh; | |
1887 | ||
1888 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1889 | ||
1890 | ombh->type = htons(mb->type); | |
1891 | ombh->len = htons(ombh_len); | |
1892 | ombh->rate = htonl(mb->rate); | |
1893 | ombh->burst_size = htonl(mb->burst_size); | |
1894 | ombh->prec_level = mb->prec_level; | |
1895 | ||
1896 | mb++; | |
1897 | } | |
1898 | } | |
1899 | ||
1900 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1901 | void | |
ca6ba700 | 1902 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1903 | const struct ofputil_meter_config *mc) |
1904 | { | |
417e7e66 | 1905 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 1906 | size_t start_ofs = msg->size; |
6a5490c6 | 1907 | struct ofp13_meter_config *reply; |
638a19b0 | 1908 | |
6a5490c6 | 1909 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1910 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1911 | ||
32756a57 | 1912 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1913 | reply->flags = htons(mc->flags); |
1914 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1915 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1916 | |
1917 | ofpmp_postappend(replies, start_ofs); | |
1918 | } | |
1919 | ||
1920 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1921 | void | |
ca6ba700 | 1922 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1923 | const struct ofputil_meter_stats *ms) |
1924 | { | |
1925 | struct ofp13_meter_stats *reply; | |
1926 | uint16_t n = 0; | |
1927 | uint16_t len; | |
1928 | ||
1929 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1930 | reply = ofpmp_append(replies, len); | |
1931 | ||
1932 | reply->meter_id = htonl(ms->meter_id); | |
1933 | reply->len = htons(len); | |
1934 | memset(reply->pad, 0, sizeof reply->pad); | |
1935 | reply->flow_count = htonl(ms->flow_count); | |
1936 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1937 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1938 | reply->duration_sec = htonl(ms->duration_sec); | |
1939 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1940 | ||
1941 | for (n = 0; n < ms->n_bands; ++n) { | |
1942 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1943 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1944 | ||
1945 | dst->packet_band_count = htonll(src->packet_count); | |
1946 | dst->byte_band_count = htonll(src->byte_count); | |
1947 | } | |
1948 | } | |
1949 | ||
1950 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1951 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1952 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1953 | * it across the call. | |
1954 | * | |
1955 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1956 | * message. Calling this function multiple times for a single 'msg' iterates | |
1957 | * through the replies. 'bands' is cleared for each reply. | |
1958 | * | |
1959 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1960 | * otherwise a positive errno value. */ | |
1961 | int | |
1962 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1963 | struct ofputil_meter_config *mc, | |
1964 | struct ofpbuf *bands) | |
1965 | { | |
1966 | const struct ofp13_meter_config *omc; | |
1967 | enum ofperr err; | |
1968 | ||
1969 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1970 | if (!msg->header) { |
638a19b0 JR |
1971 | ofpraw_pull_assert(msg); |
1972 | } | |
1973 | ||
6fd6ed71 | 1974 | if (!msg->size) { |
638a19b0 JR |
1975 | return EOF; |
1976 | } | |
1977 | ||
1978 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
1979 | if (!omc) { | |
0445637d | 1980 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 1981 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 1982 | msg->size); |
638a19b0 JR |
1983 | return OFPERR_OFPBRC_BAD_LEN; |
1984 | } | |
1985 | ||
1986 | ofpbuf_clear(bands); | |
1987 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
1988 | &mc->n_bands, bands); | |
1989 | if (err) { | |
1990 | return err; | |
1991 | } | |
1992 | mc->meter_id = ntohl(omc->meter_id); | |
1993 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 1994 | mc->bands = bands->data; |
638a19b0 JR |
1995 | |
1996 | return 0; | |
1997 | } | |
1998 | ||
1999 | static enum ofperr | |
2000 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2001 | struct ofpbuf *bands) | |
2002 | { | |
2003 | const struct ofp13_meter_band_stats *ombs; | |
2004 | struct ofputil_meter_band_stats *mbs; | |
2005 | uint16_t n, i; | |
2006 | ||
0445637d JR |
2007 | ombs = ofpbuf_try_pull(msg, len); |
2008 | if (!ombs) { | |
2009 | return OFPERR_OFPBRC_BAD_LEN; | |
2010 | } | |
2011 | ||
638a19b0 JR |
2012 | n = len / sizeof *ombs; |
2013 | if (len != n * sizeof *ombs) { | |
2014 | return OFPERR_OFPBRC_BAD_LEN; | |
2015 | } | |
2016 | ||
638a19b0 JR |
2017 | mbs = ofpbuf_put_uninit(bands, len); |
2018 | ||
2019 | for (i = 0; i < n; ++i) { | |
2020 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2021 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2022 | } | |
2023 | *n_bands = n; | |
2024 | return 0; | |
2025 | } | |
2026 | ||
2027 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2028 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2029 | * decoded into 'bands'. | |
2030 | * | |
2031 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2032 | * message. Calling this function multiple times for a single 'msg' iterates | |
2033 | * through the replies. 'bands' is cleared for each reply. | |
2034 | * | |
2035 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2036 | * otherwise a positive errno value. */ | |
2037 | int | |
2038 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2039 | struct ofputil_meter_stats *ms, | |
2040 | struct ofpbuf *bands) | |
2041 | { | |
2042 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2043 | enum ofperr err; |
2044 | ||
2045 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2046 | if (!msg->header) { |
638a19b0 JR |
2047 | ofpraw_pull_assert(msg); |
2048 | } | |
2049 | ||
6fd6ed71 | 2050 | if (!msg->size) { |
638a19b0 JR |
2051 | return EOF; |
2052 | } | |
2053 | ||
2054 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2055 | if (!oms) { | |
0445637d | 2056 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2057 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2058 | msg->size); |
638a19b0 JR |
2059 | return OFPERR_OFPBRC_BAD_LEN; |
2060 | } | |
638a19b0 JR |
2061 | |
2062 | ofpbuf_clear(bands); | |
0445637d JR |
2063 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2064 | &ms->n_bands, bands); | |
638a19b0 JR |
2065 | if (err) { |
2066 | return err; | |
2067 | } | |
2068 | ms->meter_id = ntohl(oms->meter_id); | |
2069 | ms->flow_count = ntohl(oms->flow_count); | |
2070 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2071 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2072 | ms->duration_sec = ntohl(oms->duration_sec); | |
2073 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2074 | ms->bands = bands->data; |
638a19b0 JR |
2075 | |
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | void | |
2080 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2081 | struct ofputil_meter_features *mf) | |
2082 | { | |
2083 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2084 | ||
2085 | mf->max_meters = ntohl(omf->max_meter); | |
2086 | mf->band_types = ntohl(omf->band_types); | |
2087 | mf->capabilities = ntohl(omf->capabilities); | |
2088 | mf->max_bands = omf->max_bands; | |
2089 | mf->max_color = omf->max_color; | |
2090 | } | |
2091 | ||
2092 | struct ofpbuf * | |
2093 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2094 | const struct ofp_header *request) | |
2095 | { | |
2096 | struct ofpbuf *reply; | |
2097 | struct ofp13_meter_features *omf; | |
2098 | ||
2099 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2100 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2101 | ||
2102 | omf->max_meter = htonl(mf->max_meters); | |
2103 | omf->band_types = htonl(mf->band_types); | |
2104 | omf->capabilities = htonl(mf->capabilities); | |
2105 | omf->max_bands = mf->max_bands; | |
2106 | omf->max_color = mf->max_color; | |
2107 | ||
2108 | return reply; | |
2109 | } | |
2110 | ||
2111 | struct ofpbuf * | |
2112 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2113 | const struct ofputil_meter_mod *mm) | |
2114 | { | |
2115 | struct ofpbuf *msg; | |
2116 | ||
2117 | struct ofp13_meter_mod *omm; | |
2118 | ||
2119 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2120 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2121 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2122 | omm->command = htons(mm->command); | |
2123 | if (mm->command != OFPMC13_DELETE) { | |
2124 | omm->flags = htons(mm->meter.flags); | |
2125 | } | |
2126 | omm->meter_id = htonl(mm->meter.meter_id); | |
2127 | ||
2128 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2129 | ||
2130 | ofpmsg_update_length(msg); | |
2131 | return msg; | |
2132 | } | |
2133 | ||
aa6305ea SH |
2134 | static ovs_be16 |
2135 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2136 | enum ofputil_protocol protocol) | |
2137 | { | |
2138 | return htons(protocol & OFPUTIL_P_TID | |
2139 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2140 | : fm->command); | |
2141 | } | |
2142 | ||
2e4f5fcf | 2143 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2144 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2145 | struct ofpbuf * |
a9a2da38 | 2146 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2147 | enum ofputil_protocol protocol) |
2e4f5fcf | 2148 | { |
0fb88c18 BP |
2149 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2150 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2151 | struct ofpbuf *msg; |
2152 | ||
27527aa0 | 2153 | switch (protocol) { |
75fa58f8 | 2154 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2155 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2156 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2157 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2158 | case OFPUTIL_P_OF15_OXM: |
2159 | case OFPUTIL_P_OF16_OXM: { | |
aa6305ea | 2160 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2161 | int tailroom; |
aa6305ea | 2162 | |
75fa58f8 | 2163 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2164 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2165 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2166 | if ((protocol == OFPUTIL_P_OF11_STD |
2167 | && (fm->command == OFPFC_MODIFY || | |
2168 | fm->command == OFPFC_MODIFY_STRICT) | |
2169 | && fm->cookie_mask == htonll(0)) | |
2170 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2171 | ofm->cookie = fm->new_cookie; |
2172 | } else { | |
ba5cc068 | 2173 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2174 | } |
aa6305ea | 2175 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2176 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2177 | || (protocol != OFPUTIL_P_OF11_STD |
2178 | && (fm->command == OFPFC_DELETE || | |
2179 | fm->command == OFPFC_DELETE_STRICT))) { | |
2180 | ofm->table_id = fm->table_id; | |
2181 | } else { | |
2182 | ofm->table_id = 0; | |
2183 | } | |
aa6305ea SH |
2184 | ofm->command = fm->command; |
2185 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2186 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2187 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2188 | ofm->buffer_id = htonl(fm->buffer_id); |
2189 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2190 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2191 | ofm->flags = raw_flags; |
ca26eb44 RB |
2192 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2193 | ofm->importance = htons(fm->importance); | |
2194 | } else { | |
2195 | ofm->importance = 0; | |
2196 | } | |
75fa58f8 | 2197 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2198 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2199 | version); | |
aa6305ea SH |
2200 | break; |
2201 | } | |
2202 | ||
85813857 BP |
2203 | case OFPUTIL_P_OF10_STD: |
2204 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2205 | struct ofp10_flow_mod *ofm; |
2206 | ||
982697a4 BP |
2207 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2208 | fm->ofpacts_len); | |
2209 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2210 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2211 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2212 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2213 | ofm->idle_timeout = htons(fm->idle_timeout); |
2214 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2215 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2216 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2217 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2218 | ofm->flags = raw_flags; |
e3f8f887 JR |
2219 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2220 | version); | |
27527aa0 | 2221 | break; |
3f192f23 | 2222 | } |
2e4f5fcf | 2223 | |
85813857 BP |
2224 | case OFPUTIL_P_OF10_NXM: |
2225 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2226 | struct nx_flow_mod *nfm; |
2227 | int match_len; | |
2228 | ||
982697a4 BP |
2229 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2230 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2231 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2232 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2233 | nfm->cookie = fm->new_cookie; |
81a76618 | 2234 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2235 | nfm = msg->msg; |
2e4f5fcf BP |
2236 | nfm->idle_timeout = htons(fm->idle_timeout); |
2237 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2238 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2239 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2240 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2241 | nfm->flags = raw_flags; |
2e4f5fcf | 2242 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2243 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2244 | version); | |
27527aa0 | 2245 | break; |
3f192f23 | 2246 | } |
27527aa0 BP |
2247 | |
2248 | default: | |
428b2edd | 2249 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2250 | } |
2251 | ||
982697a4 | 2252 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2253 | return msg; |
2254 | } | |
2255 | ||
90bf1e07 | 2256 | static enum ofperr |
0157ad3a SH |
2257 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2258 | const struct ofp10_flow_stats_request *ofsr, | |
2259 | bool aggregate) | |
2e4f5fcf | 2260 | { |
2e4f5fcf | 2261 | fsr->aggregate = aggregate; |
81a76618 | 2262 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2263 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2264 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2265 | fsr->table_id = ofsr->table_id; |
e729e793 | 2266 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2267 | |
2268 | return 0; | |
2269 | } | |
2270 | ||
0157ad3a SH |
2271 | static enum ofperr |
2272 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2273 | struct ofpbuf *b, bool aggregate) | |
2274 | { | |
2275 | const struct ofp11_flow_stats_request *ofsr; | |
2276 | enum ofperr error; | |
2277 | ||
2278 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2279 | fsr->aggregate = aggregate; | |
2280 | fsr->table_id = ofsr->table_id; | |
2281 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2282 | if (error) { | |
2283 | return error; | |
2284 | } | |
7395c052 | 2285 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2286 | fsr->cookie = ofsr->cookie; |
2287 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2288 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2289 | if (error) { |
2290 | return error; | |
2291 | } | |
2292 | ||
2293 | return 0; | |
2294 | } | |
2295 | ||
90bf1e07 | 2296 | static enum ofperr |
81d1ea94 | 2297 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2298 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2299 | { |
2300 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2301 | enum ofperr error; |
2e4f5fcf | 2302 | |
982697a4 | 2303 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2304 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2305 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2306 | if (error) { |
2307 | return error; | |
2308 | } | |
6fd6ed71 | 2309 | if (b->size) { |
90bf1e07 | 2310 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2311 | } |
2312 | ||
2313 | fsr->aggregate = aggregate; | |
4e022ec0 | 2314 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2315 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2316 | fsr->table_id = nfsr->table_id; |
2317 | ||
2318 | return 0; | |
2319 | } | |
2320 | ||
e8f9a7bb | 2321 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2322 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2323 | * | |
2324 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2325 | * request all queues. */ | |
e8f9a7bb VG |
2326 | struct ofpbuf * |
2327 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2328 | ofp_port_t port, |
2329 | uint32_t queue) | |
e8f9a7bb VG |
2330 | { |
2331 | struct ofpbuf *request; | |
2332 | ||
2333 | if (version == OFP10_VERSION) { | |
2334 | struct ofp10_queue_get_config_request *qgcr10; | |
2335 | ||
2336 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2337 | version, 0); | |
2338 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2339 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2340 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2341 | struct ofp11_queue_get_config_request *qgcr11; |
2342 | ||
2343 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2344 | version, 0); | |
2345 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2346 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2347 | } else { |
2348 | struct ofp14_queue_desc_request *qdr14; | |
2349 | ||
2350 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2351 | version, 0); | |
2352 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2353 | qdr14->port = ofputil_port_to_ofp11(port); | |
2354 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2355 | } |
2356 | ||
2357 | return request; | |
2358 | } | |
2359 | ||
2360 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2361 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2362 | * code. */ | |
2363 | enum ofperr | |
2364 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2365 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2366 | { |
2367 | const struct ofp10_queue_get_config_request *qgcr10; | |
2368 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2369 | const struct ofp14_queue_desc_request *qdr14; |
0a2869d5 BP |
2370 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2371 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
e8f9a7bb VG |
2372 | |
2373 | switch ((int) raw) { | |
2374 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2375 | qgcr10 = b.data; |
e8f9a7bb | 2376 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2377 | *queue = OFPQ_ALL; |
56085be5 | 2378 | break; |
e8f9a7bb VG |
2379 | |
2380 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2381 | qgcr11 = b.data; |
e016fb63 | 2382 | *queue = OFPQ_ALL; |
56085be5 BP |
2383 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2384 | if (error || *port == OFPP_ANY) { | |
2385 | return error; | |
2386 | } | |
2387 | break; | |
2388 | ||
e016fb63 BP |
2389 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2390 | qdr14 = b.data; | |
2391 | *queue = ntohl(qdr14->queue); | |
2392 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2393 | ||
56085be5 BP |
2394 | default: |
2395 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2396 | } |
2397 | ||
56085be5 BP |
2398 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2399 | ? 0 | |
2400 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2401 | } |
2402 | ||
2403 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2404 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2405 | * may append information about individual queues with | |
2406 | * ofputil_append_queue_get_config_reply(). */ | |
2407 | void | |
2408 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2409 | struct ovs_list *replies) | |
e8f9a7bb | 2410 | { |
e8f9a7bb VG |
2411 | struct ofpbuf *reply; |
2412 | enum ofperr error; | |
e8f9a7bb | 2413 | ofp_port_t port; |
e016fb63 | 2414 | uint32_t queue; |
e8f9a7bb | 2415 | |
e016fb63 | 2416 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2417 | ovs_assert(!error); |
2418 | ||
e016fb63 | 2419 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2420 | switch ((int) raw) { |
2421 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2422 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2423 | request, 0); |
2424 | struct ofp10_queue_get_config_reply *qgcr10 | |
2425 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2426 | qgcr10->port = htons(ofp_to_u16(port)); |
2427 | break; | |
2428 | ||
2429 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2430 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2431 | request, 0); |
2432 | struct ofp11_queue_get_config_reply *qgcr11 | |
2433 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2434 | qgcr11->port = ofputil_port_to_ofp11(port); |
2435 | break; | |
2436 | ||
e016fb63 BP |
2437 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2438 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2439 | break; | |
2440 | ||
e8f9a7bb | 2441 | default: |
428b2edd | 2442 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2443 | } |
2444 | ||
417e7e66 BW |
2445 | ovs_list_init(replies); |
2446 | ovs_list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2447 | } |
2448 | ||
2449 | static void | |
d2e5fa1f BP |
2450 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2451 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2452 | { |
2453 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2454 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2455 | |
2456 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2457 | oqpr->prop_header.property = htons(property); | |
2458 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2459 | oqpr->rate = htons(rate); | |
2460 | } | |
2461 | } | |
2462 | ||
e016fb63 BP |
2463 | static void |
2464 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2465 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2466 | { | |
2467 | if (rate != UINT16_MAX) { | |
2468 | ofpprop_put_u16(reply, type, rate); | |
2469 | } | |
2470 | } | |
2471 | ||
e8f9a7bb | 2472 | void |
e016fb63 BP |
2473 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2474 | struct ovs_list *replies) | |
e8f9a7bb | 2475 | { |
e016fb63 | 2476 | enum ofp_version ofp_version = ofpmp_version(replies); |
417e7e66 | 2477 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
e016fb63 BP |
2478 | size_t start_ofs = reply->size; |
2479 | size_t len_ofs; | |
e8f9a7bb VG |
2480 | ovs_be16 *len; |
2481 | ||
e016fb63 BP |
2482 | if (ofp_version < OFP14_VERSION) { |
2483 | if (ofp_version < OFP12_VERSION) { | |
2484 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2485 | |
e016fb63 BP |
2486 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2487 | opq10->queue_id = htonl(qc->queue); | |
2488 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2489 | } else { | |
2490 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2491 | |
e016fb63 BP |
2492 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2493 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2494 | opq12->queue_id = htonl(qc->queue); | |
2495 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2496 | } | |
e8f9a7bb | 2497 | |
e016fb63 BP |
2498 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2499 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2500 | } else { | |
2501 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2502 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2503 | oqd->queue_id = htonl(qc->queue); | |
2504 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2505 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2506 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2507 | } | |
e8f9a7bb VG |
2508 | |
2509 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2510 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2511 | |
e016fb63 BP |
2512 | if (ofp_version >= OFP14_VERSION) { |
2513 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2514 | } |
e8f9a7bb VG |
2515 | } |
2516 | ||
2517 | static enum ofperr | |
d2e5fa1f BP |
2518 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2519 | uint16_t *rate) | |
e8f9a7bb | 2520 | { |
d2e5fa1f | 2521 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2522 | |
2523 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2524 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2525 | *rate = ntohs(oqpr->rate); |
2526 | return 0; | |
2527 | } else { | |
2528 | return OFPERR_OFPBRC_BAD_LEN; | |
2529 | } | |
2530 | } | |
2531 | ||
e016fb63 BP |
2532 | static int |
2533 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2534 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2535 | { |
e016fb63 BP |
2536 | const struct ofp_header *oh = msg->header; |
2537 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2538 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2539 | |
e016fb63 BP |
2540 | /* Obtain the port number from the message header. */ |
2541 | if (oh->version == OFP10_VERSION) { | |
2542 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2543 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2544 | } else { | |
2545 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2546 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2547 | &queue->port); | |
2548 | if (error) { | |
2549 | return error; | |
2550 | } | |
e8f9a7bb VG |
2551 | } |
2552 | ||
e016fb63 | 2553 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2554 | if (oh->version < OFP12_VERSION) { |
2555 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2556 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2557 | if (!opq10) { |
2558 | return OFPERR_OFPBRC_BAD_LEN; | |
2559 | } | |
e016fb63 | 2560 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2561 | len = ntohs(opq10->len); |
2562 | opq_len = sizeof *opq10; | |
2563 | } else { | |
2564 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2565 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2566 | if (!opq12) { |
2567 | return OFPERR_OFPBRC_BAD_LEN; | |
2568 | } | |
e016fb63 | 2569 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2570 | len = ntohs(opq12->len); |
2571 | opq_len = sizeof *opq12; | |
2572 | } | |
2573 | ||
e016fb63 BP |
2574 | /* Length check. */ |
2575 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2576 | return OFPERR_OFPBRC_BAD_LEN; |
2577 | } | |
2578 | len -= opq_len; | |
2579 | ||
e016fb63 BP |
2580 | /* Pull properties. The format of these properties differs from used in |
2581 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2582 | while (len > 0) { |
d2e5fa1f | 2583 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2584 | unsigned int property; |
2585 | unsigned int prop_len; | |
2586 | enum ofperr error = 0; | |
2587 | ||
e016fb63 | 2588 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2589 | prop_len = ntohs(hdr->len); |
e016fb63 | 2590 | if (prop_len < sizeof *hdr || prop_len > msg->size || prop_len % 8) { |
e8f9a7bb VG |
2591 | return OFPERR_OFPBRC_BAD_LEN; |
2592 | } | |
2593 | ||
2594 | property = ntohs(hdr->property); | |
2595 | switch (property) { | |
d2e5fa1f BP |
2596 | case OFPQT10_MIN_RATE: |
2597 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2598 | break; |
2599 | ||
d2e5fa1f BP |
2600 | case OFPQT11_MAX_RATE: |
2601 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2602 | break; |
2603 | ||
2604 | default: | |
2605 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2606 | break; | |
2607 | } | |
2608 | if (error) { | |
2609 | return error; | |
2610 | } | |
2611 | ||
e016fb63 | 2612 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2613 | len -= prop_len; |
2614 | } | |
2615 | return 0; | |
2616 | } | |
2617 | ||
e016fb63 BP |
2618 | static int |
2619 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2620 | struct ofputil_queue_config *queue) | |
2621 | { | |
2622 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2623 | if (!oqd14) { | |
2624 | return OFPERR_OFPBRC_BAD_LEN; | |
2625 | } | |
2626 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2627 | if (error) { | |
2628 | return error; | |
2629 | } | |
2630 | queue->queue = ntohl(oqd14->queue_id); | |
2631 | ||
2632 | /* Length check. */ | |
2633 | unsigned int len = ntohs(oqd14->len); | |
2634 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2635 | return OFPERR_OFPBRC_BAD_LEN; | |
2636 | } | |
2637 | len -= sizeof *oqd14; | |
2638 | ||
0a2869d5 BP |
2639 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
2640 | len); | |
e016fb63 BP |
2641 | while (properties.size > 0) { |
2642 | struct ofpbuf payload; | |
2643 | uint64_t type; | |
2644 | ||
2645 | error = ofpprop_pull(&properties, &payload, &type); | |
2646 | if (error) { | |
2647 | return error; | |
2648 | } | |
2649 | ||
2650 | switch (type) { | |
2651 | case OFPQDPT14_MIN_RATE: | |
2652 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2653 | break; | |
2654 | ||
2655 | case OFPQDPT14_MAX_RATE: | |
2656 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2657 | break; | |
2658 | ||
2659 | default: | |
2660 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2661 | break; | |
2662 | } | |
2663 | ||
2664 | if (error) { | |
2665 | return error; | |
2666 | } | |
2667 | } | |
2668 | ||
2669 | return 0; | |
2670 | } | |
2671 | ||
2672 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2673 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2674 | * must already have pulled off the main header. | |
2675 | * | |
2676 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2677 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2678 | * problem decoding 'reply'. */ | |
2679 | int | |
2680 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2681 | struct ofputil_queue_config *queue) | |
2682 | { | |
2683 | enum ofpraw raw; | |
2684 | if (!msg->header) { | |
2685 | /* Pull OpenFlow header. */ | |
2686 | raw = ofpraw_pull_assert(msg); | |
2687 | ||
2688 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2689 | * doesn't have one at all). */ | |
2690 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2691 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2692 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2693 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2694 | } else { | |
2695 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2696 | } | |
2697 | } else { | |
2698 | raw = ofpraw_decode_assert(msg->header); | |
2699 | } | |
2700 | ||
2701 | queue->min_rate = UINT16_MAX; | |
2702 | queue->max_rate = UINT16_MAX; | |
2703 | ||
2704 | if (!msg->size) { | |
2705 | return EOF; | |
2706 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2707 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2708 | } else { | |
2709 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2710 | } | |
2711 | } | |
2712 | ||
2e4f5fcf | 2713 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2714 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2715 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2716 | enum ofperr |
81d1ea94 | 2717 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2718 | const struct ofp_header *oh) |
2e4f5fcf | 2719 | { |
0a2869d5 BP |
2720 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
2721 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 2722 | switch ((int) raw) { |
cfc23141 | 2723 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2724 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2725 | |
617da9cd | 2726 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2727 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2728 | |
2729 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2730 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2731 | |
617da9cd SH |
2732 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2733 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2734 | ||
982697a4 BP |
2735 | case OFPRAW_NXST_FLOW_REQUEST: |
2736 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2737 | |
982697a4 BP |
2738 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2739 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2740 | |
2741 | default: | |
2742 | /* Hey, the caller lied. */ | |
428b2edd | 2743 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2744 | } |
2745 | } | |
2746 | ||
2747 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2748 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2749 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2750 | struct ofpbuf * |
81d1ea94 | 2751 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2752 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2753 | { |
2754 | struct ofpbuf *msg; | |
982697a4 | 2755 | enum ofpraw raw; |
2e4f5fcf | 2756 | |
27527aa0 | 2757 | switch (protocol) { |
75fa58f8 | 2758 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2759 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2760 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 2761 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
2762 | case OFPUTIL_P_OF15_OXM: |
2763 | case OFPUTIL_P_OF16_OXM: { | |
06516c65 SH |
2764 | struct ofp11_flow_stats_request *ofsr; |
2765 | ||
2766 | raw = (fsr->aggregate | |
617da9cd | 2767 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2768 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2769 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2770 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2771 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2772 | ofsr->table_id = fsr->table_id; | |
2773 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2774 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2775 | ofsr->cookie = fsr->cookie; |
2776 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2777 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2778 | break; |
2779 | } | |
2780 | ||
85813857 BP |
2781 | case OFPUTIL_P_OF10_STD: |
2782 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2783 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2784 | |
982697a4 | 2785 | raw = (fsr->aggregate |
617da9cd | 2786 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2787 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2788 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2789 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2790 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2791 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2792 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2793 | break; |
2794 | } | |
2795 | ||
85813857 BP |
2796 | case OFPUTIL_P_OF10_NXM: |
2797 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2798 | struct nx_flow_stats_request *nfsr; |
2799 | int match_len; | |
2800 | ||
982697a4 BP |
2801 | raw = (fsr->aggregate |
2802 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2803 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2804 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2805 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2806 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2807 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2808 | |
6fd6ed71 | 2809 | nfsr = msg->msg; |
4e022ec0 | 2810 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2811 | nfsr->match_len = htons(match_len); |
2812 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2813 | break; |
2814 | } | |
2815 | ||
2816 | default: | |
428b2edd | 2817 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2818 | } |
2819 | ||
2820 | return msg; | |
2821 | } | |
d1e2cf21 | 2822 | |
4ffd1b43 | 2823 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2824 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2825 | * |
2826 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2827 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2828 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2829 | * pointers null and not modify them between calls. | |
2830 | * | |
f27f2134 BP |
2831 | * Most switches don't send the values needed to populate fs->idle_age and |
2832 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2833 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2834 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2835 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2836 | * | |
f25d0cf3 BP |
2837 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2838 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2839 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2840 | * | |
4ffd1b43 BP |
2841 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2842 | * otherwise a positive errno value. */ | |
2843 | int | |
2844 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2845 | struct ofpbuf *msg, |
f25d0cf3 BP |
2846 | bool flow_age_extension, |
2847 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2848 | { |
0fb88c18 | 2849 | const struct ofp_header *oh; |
8f2cded4 | 2850 | size_t instructions_len; |
982697a4 BP |
2851 | enum ofperr error; |
2852 | enum ofpraw raw; | |
4ffd1b43 | 2853 | |
6fd6ed71 | 2854 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2855 | : ofpraw_pull(&raw, msg)); |
2856 | if (error) { | |
2857 | return error; | |
4ffd1b43 | 2858 | } |
6fd6ed71 | 2859 | oh = msg->header; |
4ffd1b43 | 2860 | |
6fd6ed71 | 2861 | if (!msg->size) { |
4ffd1b43 | 2862 | return EOF; |
2e1ae200 JR |
2863 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2864 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2865 | const struct ofp11_flow_stats *ofs; |
2866 | size_t length; | |
2867 | uint16_t padded_match_len; | |
2868 | ||
2869 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2870 | if (!ofs) { | |
437d0d22 | 2871 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2872 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2873 | return EINVAL; |
2874 | } | |
2875 | ||
2876 | length = ntohs(ofs->length); | |
2877 | if (length < sizeof *ofs) { | |
2878 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2879 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2880 | return EINVAL; |
2881 | } | |
2882 | ||
81a76618 | 2883 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2884 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2885 | return EINVAL; | |
2886 | } | |
8f2cded4 | 2887 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2888 | |
81a76618 | 2889 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2890 | fs->table_id = ofs->table_id; |
2891 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2892 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2893 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2894 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2895 | if (oh->version >= OFP14_VERSION) { |
2896 | fs->importance = ntohs(ofs->importance); | |
2897 | } else { | |
2898 | fs->importance = 0; | |
2899 | } | |
0fb88c18 BP |
2900 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2901 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2902 | &fs->flags); | |
2903 | if (error) { | |
2904 | return error; | |
2905 | } | |
2906 | } else { | |
2907 | fs->flags = 0; | |
2908 | } | |
6ec5f0c5 SH |
2909 | fs->idle_age = -1; |
2910 | fs->hard_age = -1; | |
2911 | fs->cookie = ofs->cookie; | |
2912 | fs->packet_count = ntohll(ofs->packet_count); | |
2913 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2914 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2915 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2916 | size_t length; |
2917 | ||
2918 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2919 | if (!ofs) { | |
437d0d22 | 2920 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2921 | "bytes at end", msg->size); |
4ffd1b43 BP |
2922 | return EINVAL; |
2923 | } | |
2924 | ||
2925 | length = ntohs(ofs->length); | |
2926 | if (length < sizeof *ofs) { | |
2927 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2928 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2929 | return EINVAL; |
2930 | } | |
8f2cded4 | 2931 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2932 | |
2933 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2934 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2935 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2936 | fs->table_id = ofs->table_id; |
2937 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2938 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2939 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2940 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2941 | fs->importance = 0; |
f27f2134 BP |
2942 | fs->idle_age = -1; |
2943 | fs->hard_age = -1; | |
4ffd1b43 BP |
2944 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2945 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2946 | fs->flags = 0; |
982697a4 | 2947 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2948 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2949 | size_t match_len, length; |
4ffd1b43 BP |
2950 | |
2951 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2952 | if (!nfs) { | |
437d0d22 | 2953 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2954 | "bytes at end", msg->size); |
4ffd1b43 BP |
2955 | return EINVAL; |
2956 | } | |
2957 | ||
2958 | length = ntohs(nfs->length); | |
2959 | match_len = ntohs(nfs->match_len); | |
2960 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2961 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2962 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2963 | return EINVAL; |
2964 | } | |
81a76618 | 2965 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2966 | return EINVAL; |
2967 | } | |
8f2cded4 | 2968 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2969 | |
2970 | fs->cookie = nfs->cookie; | |
2971 | fs->table_id = nfs->table_id; | |
2972 | fs->duration_sec = ntohl(nfs->duration_sec); | |
2973 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 2974 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
2975 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
2976 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 2977 | fs->importance = 0; |
f27f2134 BP |
2978 | fs->idle_age = -1; |
2979 | fs->hard_age = -1; | |
2980 | if (flow_age_extension) { | |
2981 | if (nfs->idle_age) { | |
2982 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
2983 | } | |
2984 | if (nfs->hard_age) { | |
2985 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
2986 | } | |
2987 | } | |
4ffd1b43 BP |
2988 | fs->packet_count = ntohll(nfs->packet_count); |
2989 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 2990 | fs->flags = 0; |
4ffd1b43 | 2991 | } else { |
428b2edd | 2992 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
2993 | } |
2994 | ||
8f2cded4 BP |
2995 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
2996 | ofpacts)) { | |
2997 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
2998 | return EINVAL; | |
2999 | } | |
6fd6ed71 PS |
3000 | fs->ofpacts = ofpacts->data; |
3001 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3002 | |
4ffd1b43 BP |
3003 | return 0; |
3004 | } | |
3005 | ||
5e9d0469 BP |
3006 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3007 | * | |
3008 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3009 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3010 | static uint64_t | |
3011 | unknown_to_zero(uint64_t count) | |
3012 | { | |
3013 | return count != UINT64_MAX ? count : 0; | |
3014 | } | |
3015 | ||
349adfb2 BP |
3016 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3017 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3018 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3019 | void |
3020 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 3021 | struct ovs_list *replies) |
349adfb2 | 3022 | { |
417e7e66 | 3023 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 3024 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3025 | enum ofp_version version = ofpmp_version(replies); |
3026 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3027 | |
2e1ae200 | 3028 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3029 | struct ofp11_flow_stats *ofs; |
3030 | ||
3031 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3032 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3033 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3034 | version); | |
22a86f18 SH |
3035 | |
3036 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3037 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3038 | ofs->table_id = fs->table_id; |
3039 | ofs->pad = 0; | |
3040 | ofs->duration_sec = htonl(fs->duration_sec); | |
3041 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3042 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3043 | ofs->idle_timeout = htons(fs->idle_timeout); |
3044 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3045 | if (version >= OFP14_VERSION) { |
3046 | ofs->importance = htons(fs->importance); | |
3047 | } else { | |
3048 | ofs->importance = 0; | |
3049 | } | |
0fb88c18 | 3050 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3051 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3052 | } else { |
3053 | ofs->flags = 0; | |
3054 | } | |
22a86f18 SH |
3055 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3056 | ofs->cookie = fs->cookie; | |
3057 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3058 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3059 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3060 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3061 | |
1a59dc2c | 3062 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3063 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3064 | version); | |
1a59dc2c | 3065 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3066 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3067 | ofs->table_id = fs->table_id; |
3068 | ofs->pad = 0; | |
81a76618 | 3069 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3070 | ofs->duration_sec = htonl(fs->duration_sec); |
3071 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3072 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3073 | ofs->idle_timeout = htons(fs->idle_timeout); |
3074 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3075 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3076 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3077 | put_32aligned_be64(&ofs->packet_count, |
3078 | htonll(unknown_to_zero(fs->packet_count))); | |
3079 | put_32aligned_be64(&ofs->byte_count, | |
3080 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3081 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3082 | struct nx_flow_stats *nfs; |
1a59dc2c | 3083 | int match_len; |
349adfb2 | 3084 | |
1a59dc2c | 3085 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3086 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3087 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3088 | version); | |
1a59dc2c | 3089 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3090 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3091 | nfs->table_id = fs->table_id; |
3092 | nfs->pad = 0; | |
3093 | nfs->duration_sec = htonl(fs->duration_sec); | |
3094 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3095 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3096 | nfs->idle_timeout = htons(fs->idle_timeout); |
3097 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3098 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3099 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3100 | : UINT16_MAX); | |
3101 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3102 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3103 | : UINT16_MAX); | |
1a59dc2c | 3104 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3105 | nfs->cookie = fs->cookie; |
3106 | nfs->packet_count = htonll(fs->packet_count); | |
3107 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3108 | } else { |
428b2edd | 3109 | OVS_NOT_REACHED(); |
349adfb2 | 3110 | } |
f25d0cf3 | 3111 | |
982697a4 | 3112 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3113 | } |
3114 | ||
76c93b22 | 3115 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3116 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3117 | struct ofpbuf * |
3118 | ofputil_encode_aggregate_stats_reply( | |
3119 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3120 | const struct ofp_header *request) |
76c93b22 | 3121 | { |
a814ba0f BP |
3122 | struct ofp_aggregate_stats_reply *asr; |
3123 | uint64_t packet_count; | |
3124 | uint64_t byte_count; | |
76c93b22 | 3125 | struct ofpbuf *msg; |
982697a4 | 3126 | enum ofpraw raw; |
76c93b22 | 3127 | |
982697a4 | 3128 | ofpraw_decode(&raw, request); |
617da9cd | 3129 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3130 | packet_count = unknown_to_zero(stats->packet_count); |
3131 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3132 | } else { |
a814ba0f BP |
3133 | packet_count = stats->packet_count; |
3134 | byte_count = stats->byte_count; | |
76c93b22 BP |
3135 | } |
3136 | ||
a814ba0f BP |
3137 | msg = ofpraw_alloc_stats_reply(request, 0); |
3138 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3139 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3140 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3141 | asr->flow_count = htonl(stats->flow_count); | |
3142 | ||
76c93b22 BP |
3143 | return msg; |
3144 | } | |
3145 | ||
982697a4 BP |
3146 | enum ofperr |
3147 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3148 | const struct ofp_header *reply) | |
3149 | { | |
0a2869d5 | 3150 | struct ofpbuf msg = ofpbuf_const_initializer(reply, ntohs(reply->length)); |
a814ba0f BP |
3151 | ofpraw_pull_assert(&msg); |
3152 | ||
0a2869d5 | 3153 | struct ofp_aggregate_stats_reply *asr = msg.msg; |
a814ba0f BP |
3154 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3155 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3156 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3157 | |
3158 | return 0; | |
3159 | } | |
3160 | ||
b78f6b77 BP |
3161 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3162 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3163 | * an OpenFlow error code. */ | |
90bf1e07 | 3164 | enum ofperr |
9b045a0c | 3165 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3166 | const struct ofp_header *oh) |
9b045a0c | 3167 | { |
0a2869d5 BP |
3168 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3169 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3170 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3171 | const struct ofp12_flow_removed *ofr; | |
3172 | enum ofperr error; | |
3173 | ||
3174 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3175 | ||
81a76618 | 3176 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3177 | if (error) { |
3178 | return error; | |
3179 | } | |
3180 | ||
81a76618 | 3181 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3182 | fr->cookie = ofr->cookie; |
3183 | fr->reason = ofr->reason; | |
95216219 | 3184 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3185 | fr->duration_sec = ntohl(ofr->duration_sec); |
3186 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3187 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3188 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3189 | fr->packet_count = ntohll(ofr->packet_count); | |
3190 | fr->byte_count = ntohll(ofr->byte_count); | |
3191 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3192 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3193 | |
982697a4 BP |
3194 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3195 | ||
81a76618 BP |
3196 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3197 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3198 | fr->cookie = ofr->cookie; |
3199 | fr->reason = ofr->reason; | |
95216219 | 3200 | fr->table_id = 255; |
9b045a0c BP |
3201 | fr->duration_sec = ntohl(ofr->duration_sec); |
3202 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3203 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3204 | fr->hard_timeout = 0; |
9b045a0c BP |
3205 | fr->packet_count = ntohll(ofr->packet_count); |
3206 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3207 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3208 | struct nx_flow_removed *nfr; |
c2725b60 | 3209 | enum ofperr error; |
9b045a0c | 3210 | |
9b045a0c | 3211 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3212 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3213 | NULL, NULL); | |
9b045a0c BP |
3214 | if (error) { |
3215 | return error; | |
3216 | } | |
6fd6ed71 | 3217 | if (b.size) { |
90bf1e07 | 3218 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3219 | } |
3220 | ||
81a76618 | 3221 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3222 | fr->cookie = nfr->cookie; |
3223 | fr->reason = nfr->reason; | |
745bfd5e | 3224 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3225 | fr->duration_sec = ntohl(nfr->duration_sec); |
3226 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3227 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3228 | fr->hard_timeout = 0; |
9b045a0c BP |
3229 | fr->packet_count = ntohll(nfr->packet_count); |
3230 | fr->byte_count = ntohll(nfr->byte_count); | |
3231 | } else { | |
428b2edd | 3232 | OVS_NOT_REACHED(); |
9b045a0c BP |
3233 | } |
3234 | ||
3235 | return 0; | |
3236 | } | |
3237 | ||
588cd7b5 | 3238 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3239 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3240 | * message. */ |
3241 | struct ofpbuf * | |
3242 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3243 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3244 | { |
3245 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3246 | enum ofp_flow_removed_reason reason = fr->reason; |
3247 | ||
3248 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3249 | reason = OFPRR_DELETE; | |
3250 | } | |
588cd7b5 | 3251 | |
27527aa0 | 3252 | switch (protocol) { |
75fa58f8 | 3253 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3254 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3255 | case OFPUTIL_P_OF13_OXM: |
42dccab5 | 3256 | case OFPUTIL_P_OF14_OXM: |
b79d45a1 BP |
3257 | case OFPUTIL_P_OF15_OXM: |
3258 | case OFPUTIL_P_OF16_OXM: { | |
83974732 SH |
3259 | struct ofp12_flow_removed *ofr; |
3260 | ||
3261 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3262 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3263 | htonl(0), |
3264 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3265 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3266 | ofr->cookie = fr->cookie; | |
81a76618 | 3267 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3268 | ofr->reason = reason; |
95216219 | 3269 | ofr->table_id = fr->table_id; |
83974732 SH |
3270 | ofr->duration_sec = htonl(fr->duration_sec); |
3271 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3272 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3273 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3274 | ofr->packet_count = htonll(fr->packet_count); |
3275 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3276 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3277 | break; |
3278 | } | |
3279 | ||
85813857 BP |
3280 | case OFPUTIL_P_OF10_STD: |
3281 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3282 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3283 | |
982697a4 BP |
3284 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3285 | htonl(0), 0); | |
3286 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3287 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3288 | ofr->cookie = fr->cookie; |
81a76618 | 3289 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3290 | ofr->reason = reason; |
588cd7b5 BP |
3291 | ofr->duration_sec = htonl(fr->duration_sec); |
3292 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3293 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3294 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3295 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3296 | break; |
3297 | } | |
3298 | ||
85813857 BP |
3299 | case OFPUTIL_P_OF10_NXM: |
3300 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3301 | struct nx_flow_removed *nfr; |
3302 | int match_len; | |
3303 | ||
982697a4 BP |
3304 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3305 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3306 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3307 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3308 | |
6fd6ed71 | 3309 | nfr = msg->msg; |
588cd7b5 | 3310 | nfr->cookie = fr->cookie; |
81a76618 | 3311 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3312 | nfr->reason = reason; |
745bfd5e | 3313 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3314 | nfr->duration_sec = htonl(fr->duration_sec); |
3315 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3316 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3317 | nfr->match_len = htons(match_len); | |
3318 | nfr->packet_count = htonll(fr->packet_count); | |
3319 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3320 | break; |
3321 | } | |
3322 | ||
3323 | default: | |
428b2edd | 3324 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3325 | } |
3326 | ||
3327 | return msg; | |
3328 | } | |
3329 | ||
6409e008 BP |
3330 | /* The caller has done basic initialization of '*pin'; the other output |
3331 | * arguments needs to be initialized. */ | |
3332 | static enum ofperr | |
77ab5fd2 | 3333 | decode_nx_packet_in2(const struct ofp_header *oh, bool loose, |
6409e008 | 3334 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3335 | size_t *total_len, uint32_t *buffer_id, |
3336 | struct ofpbuf *continuation) | |
6409e008 BP |
3337 | { |
3338 | *total_len = 0; | |
3339 | *buffer_id = UINT32_MAX; | |
3340 | ||
3341 | struct ofpbuf properties; | |
3342 | ofpbuf_use_const(&properties, oh, ntohs(oh->length)); | |
3343 | ofpraw_pull_assert(&properties); | |
3344 | ||
3345 | while (properties.size > 0) { | |
3346 | struct ofpbuf payload; | |
3347 | uint64_t type; | |
3348 | ||
3349 | enum ofperr error = ofpprop_pull(&properties, &payload, &type); | |
3350 | if (error) { | |
3351 | return error; | |
3352 | } | |
3353 | ||
3354 | switch (type) { | |
3355 | case NXPINT_PACKET: | |
3356 | pin->packet = payload.msg; | |
4adaf182 | 3357 | pin->packet_len = ofpbuf_msgsize(&payload); |
6409e008 BP |
3358 | break; |
3359 | ||
3360 | case NXPINT_FULL_LEN: { | |
3361 | uint32_t u32; | |
3362 | error = ofpprop_parse_u32(&payload, &u32); | |
3363 | *total_len = u32; | |
3364 | break; | |
3365 | } | |
3366 | ||
3367 | case NXPINT_BUFFER_ID: | |
3368 | error = ofpprop_parse_u32(&payload, buffer_id); | |
3369 | break; | |
3370 | ||
3371 | case NXPINT_TABLE_ID: | |
3372 | error = ofpprop_parse_u8(&payload, &pin->table_id); | |
3373 | break; | |
3374 | ||
3375 | case NXPINT_COOKIE: | |
3376 | error = ofpprop_parse_be64(&payload, &pin->cookie); | |
3377 | break; | |
3378 | ||
3379 | case NXPINT_REASON: { | |
3380 | uint8_t reason; | |
3381 | error = ofpprop_parse_u8(&payload, &reason); | |
3382 | pin->reason = reason; | |
3383 | break; | |
3384 | } | |
3385 | ||
3386 | case NXPINT_METADATA: | |
3387 | error = oxm_decode_match(payload.msg, ofpbuf_msgsize(&payload), | |
3388 | &pin->flow_metadata); | |
3389 | break; | |
3390 | ||
bdcad671 BP |
3391 | case NXPINT_USERDATA: |
3392 | pin->userdata = payload.msg; | |
3393 | pin->userdata_len = ofpbuf_msgsize(&payload); | |
3394 | break; | |
3395 | ||
77ab5fd2 BP |
3396 | case NXPINT_CONTINUATION: |
3397 | if (continuation) { | |
3398 | error = ofpprop_parse_nested(&payload, continuation); | |
3399 | } | |
3400 | break; | |
3401 | ||
6409e008 | 3402 | default: |
77ab5fd2 | 3403 | error = OFPPROP_UNKNOWN(loose, "NX_PACKET_IN2", type); |
6409e008 BP |
3404 | break; |
3405 | } | |
3406 | if (error) { | |
3407 | return error; | |
3408 | } | |
3409 | } | |
3410 | ||
4adaf182 | 3411 | if (!pin->packet_len) { |
6409e008 BP |
3412 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 lacks packet"); |
3413 | return OFPERR_OFPBRC_BAD_LEN; | |
3414 | } else if (!*total_len) { | |
4adaf182 BP |
3415 | *total_len = pin->packet_len; |
3416 | } else if (*total_len < pin->packet_len) { | |
6409e008 BP |
3417 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXT_PACKET_IN2 claimed full_len < len"); |
3418 | return OFPERR_OFPBRC_BAD_LEN; | |
3419 | } | |
3420 | ||
3421 | return 0; | |
3422 | } | |
3423 | ||
9bfe9334 | 3424 | /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates |
77ab5fd2 BP |
3425 | * 'pin->packet' and 'pin->packet_len' with the part of the packet actually |
3426 | * included in the message. If 'total_lenp' is nonnull, populates | |
3427 | * '*total_lenp' with the original length of the packet (which is larger than | |
3428 | * 'packet->len' if only part of the packet was included). If 'buffer_idp' is | |
3429 | * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it | |
9bfe9334 BP |
3430 | * was not buffered). |
3431 | * | |
77ab5fd2 BP |
3432 | * Populates 'continuation', if nonnull, with the continuation data from the |
3433 | * packet-in (an empty buffer, if 'oh' did not contain continuation data). The | |
3434 | * format of this data is supposed to be opaque to anything other than | |
3435 | * ovs-vswitchd, so that in any other process the only reasonable use of this | |
3436 | * data is to be copied into an NXT_RESUME message via ofputil_encode_resume(). | |
3437 | * | |
3438 | * This function points 'pin->packet' into 'oh', so the caller should not free | |
3439 | * it separately from the original OpenFlow message. This is also true for | |
3440 | * 'pin->userdata' (which could also end up NULL if there is no userdata). | |
3441 | * | |
9bfe9334 | 3442 | * Returns 0 if successful, otherwise an OpenFlow error code. */ |
f7cc6bd8 | 3443 | enum ofperr |
77ab5fd2 | 3444 | ofputil_decode_packet_in(const struct ofp_header *oh, bool loose, |
9bfe9334 | 3445 | struct ofputil_packet_in *pin, |
77ab5fd2 BP |
3446 | size_t *total_lenp, uint32_t *buffer_idp, |
3447 | struct ofpbuf *continuation) | |
65120a8a | 3448 | { |
77ab5fd2 BP |
3449 | uint32_t buffer_id; |
3450 | size_t total_len; | |
3451 | ||
65120a8a | 3452 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3453 | pin->cookie = OVS_BE64_MAX; |
77ab5fd2 BP |
3454 | if (continuation) { |
3455 | ofpbuf_use_const(continuation, NULL, 0); | |
3456 | } | |
65120a8a | 3457 | |
0a2869d5 BP |
3458 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
3459 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
2e1ae200 | 3460 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
43948fa5 BP |
3461 | const struct ofp12_packet_in *opi = ofpbuf_pull(&b, sizeof *opi); |
3462 | const ovs_be64 *cookie = (raw == OFPRAW_OFPT13_PACKET_IN | |
3463 | ? ofpbuf_pull(&b, sizeof *cookie) | |
3464 | : NULL); | |
3465 | enum ofperr error = oxm_pull_match_loose(&b, &pin->flow_metadata); | |
7cfb9651 SH |
3466 | if (error) { |
3467 | return error; | |
3468 | } | |
3469 | ||
3470 | if (!ofpbuf_try_pull(&b, 2)) { | |
3471 | return OFPERR_OFPBRC_BAD_LEN; | |
3472 | } | |
3473 | ||
43948fa5 BP |
3474 | pin->reason = opi->reason; |
3475 | pin->table_id = opi->table_id; | |
77ab5fd2 BP |
3476 | buffer_id = ntohl(opi->buffer_id); |
3477 | total_len = ntohs(opi->total_len); | |
43948fa5 BP |
3478 | if (cookie) { |
3479 | pin->cookie = *cookie; | |
2e1ae200 | 3480 | } |
7cfb9651 | 3481 | |
50dcbd8e | 3482 | pin->packet = b.data; |
4adaf182 | 3483 | pin->packet_len = b.size; |
7cfb9651 | 3484 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3485 | const struct ofp10_packet_in *opi; |
982697a4 | 3486 | |
31a9e63f | 3487 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a | 3488 | |
95022b47 | 3489 | pin->packet = CONST_CAST(uint8_t *, opi->data); |
4adaf182 | 3490 | pin->packet_len = b.size; |
65120a8a | 3491 | |
50dcbd8e | 3492 | match_init_catchall(&pin->flow_metadata); |
9bfe9334 BP |
3493 | match_set_in_port(&pin->flow_metadata, |
3494 | u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a | 3495 | pin->reason = opi->reason; |
77ab5fd2 BP |
3496 | buffer_id = ntohl(opi->buffer_id); |
3497 | total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3498 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3499 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3500 | ofp_port_t in_port; |
4d197ebb BP |
3501 | enum ofperr error; |
3502 | ||
3503 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3504 | ||
6fd6ed71 | 3505 | pin->packet = b.data; |
4adaf182 | 3506 | pin->packet_len = b.size; |
4d197ebb | 3507 | |
77ab5fd2 | 3508 | buffer_id = ntohl(opi->buffer_id); |
50dcbd8e | 3509 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3510 | if (error) { |
3511 | return error; | |
3512 | } | |
50dcbd8e JG |
3513 | match_init_catchall(&pin->flow_metadata); |
3514 | match_set_in_port(&pin->flow_metadata, in_port); | |
77ab5fd2 | 3515 | total_len = ntohs(opi->total_len); |
4d197ebb BP |
3516 | pin->reason = opi->reason; |
3517 | pin->table_id = opi->table_id; | |
982697a4 | 3518 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3519 | const struct nx_packet_in *npi; |
54834960 EJ |
3520 | int error; |
3521 | ||
54834960 | 3522 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3523 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3524 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3525 | if (error) { |
3526 | return error; | |
3527 | } | |
3528 | ||
3529 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3530 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3531 | } |
3532 | ||
54834960 EJ |
3533 | pin->reason = npi->reason; |
3534 | pin->table_id = npi->table_id; | |
3535 | pin->cookie = npi->cookie; | |
3536 | ||
77ab5fd2 BP |
3537 | buffer_id = ntohl(npi->buffer_id); |
3538 | total_len = ntohs(npi->total_len); | |
7cfb9651 | 3539 | |
50dcbd8e | 3540 | pin->packet = b.data; |
4adaf182 | 3541 | pin->packet_len = b.size; |
77ab5fd2 BP |
3542 | } else if (raw == OFPRAW_NXT_PACKET_IN2 || raw == OFPRAW_NXT_RESUME) { |
3543 | enum ofperr error = decode_nx_packet_in2(oh, loose, pin, &total_len, | |
3544 | &buffer_id, continuation); | |
3545 | if (error) { | |
3546 | return error; | |
3547 | } | |
65120a8a | 3548 | } else { |
428b2edd | 3549 | OVS_NOT_REACHED(); |
65120a8a EJ |
3550 | } |
3551 | ||
77ab5fd2 BP |
3552 | if (total_lenp) { |
3553 | *total_lenp = total_len; | |
3554 | } | |
3555 | if (buffer_idp) { | |
3556 | *buffer_idp = buffer_id; | |
3557 | } | |
3558 | ||
65120a8a EJ |
3559 | return 0; |
3560 | } | |
3561 | ||
9bfe9334 BP |
3562 | static int |
3563 | encode_packet_in_reason(enum ofp_packet_in_reason reason, | |
3564 | enum ofp_version version) | |
3565 | { | |
3566 | switch (reason) { | |
3567 | case OFPR_NO_MATCH: | |
3568 | case OFPR_ACTION: | |
3569 | case OFPR_INVALID_TTL: | |
3570 | return reason; | |
3571 | ||
3572 | case OFPR_ACTION_SET: | |
3573 | case OFPR_GROUP: | |
3574 | case OFPR_PACKET_OUT: | |
3575 | return version < OFP14_VERSION ? OFPR_ACTION : reason; | |
3576 | ||
3577 | case OFPR_EXPLICIT_MISS: | |
3578 | return version < OFP13_VERSION ? OFPR_ACTION : OFPR_NO_MATCH; | |
3579 | ||
3580 | case OFPR_IMPLICIT_MISS: | |
3581 | return OFPR_NO_MATCH; | |
3582 | ||
3583 | case OFPR_N_REASONS: | |
3584 | default: | |
3585 | OVS_NOT_REACHED(); | |
3586 | } | |
3587 | } | |
3588 | ||
77ab5fd2 BP |
3589 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this |
3590 | * function omits it. The caller can add it itself if desired. */ | |
3591 | static void | |
3592 | ofputil_put_packet_in(const struct ofputil_packet_in *pin, | |
3593 | enum ofp_version version, uint32_t buffer_id, | |
3594 | size_t include_bytes, struct ofpbuf *msg) | |
3595 | { | |
3596 | /* Add packet properties. */ | |
3597 | ofpprop_put(msg, NXPINT_PACKET, pin->packet, include_bytes); | |
3598 | if (include_bytes != pin->packet_len) { | |
3599 | ofpprop_put_u32(msg, NXPINT_FULL_LEN, pin->packet_len); | |
3600 | } | |
3601 | if (buffer_id != UINT32_MAX) { | |
3602 | ofpprop_put_u32(msg, NXPINT_BUFFER_ID, buffer_id); | |
3603 | } | |
3604 | ||
3605 | /* Add flow properties. */ | |
3606 | ofpprop_put_u8(msg, NXPINT_TABLE_ID, pin->table_id); | |
3607 | if (pin->cookie != OVS_BE64_MAX) { | |
3608 | ofpprop_put_be64(msg, NXPINT_COOKIE, pin->cookie); | |
3609 | } | |
3610 | ||
3611 | /* Add other properties. */ | |
3612 | ofpprop_put_u8(msg, NXPINT_REASON, | |
3613 | encode_packet_in_reason(pin->reason, version)); | |
3614 | ||
3615 | size_t start = ofpprop_start(msg, NXPINT_METADATA); | |
3616 | oxm_put_raw(msg, &pin->flow_metadata, version); | |
3617 | ofpprop_end(msg, start); | |
3618 | } | |
3619 | ||
3620 | static void | |
3621 | put_actions_property(struct ofpbuf *msg, uint64_t prop_type, | |
3622 | enum ofp_version version, | |
3623 | const struct ofpact *actions, size_t actions_len) | |
3624 | { | |
3625 | if (actions_len) { | |
3626 | size_t start = ofpprop_start_nested(msg, prop_type); | |
3627 | ofpacts_put_openflow_actions(actions, actions_len, msg, version); | |
3628 | ofpprop_end(msg, start); | |
3629 | } | |
3630 | } | |
3631 | ||
3632 | enum nx_continuation_prop_type { | |
3633 | NXCPT_BRIDGE = 0x8000, | |
3634 | NXCPT_STACK, | |
3635 | NXCPT_MIRRORS, | |
3636 | NXCPT_CONNTRACKED, | |
3637 | NXCPT_TABLE_ID, | |
3638 | NXCPT_COOKIE, | |
3639 | NXCPT_ACTIONS, | |
3640 | NXCPT_ACTION_SET, | |
3641 | }; | |
3642 | ||
3643 | /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this | |
3644 | * function omits it. The caller can add it itself if desired. */ | |
3645 | static void | |
3646 | ofputil_put_packet_in_private(const struct ofputil_packet_in_private *pin, | |
3647 | enum ofp_version version, uint32_t buffer_id, | |
3648 | size_t include_bytes, struct ofpbuf *msg) | |
3649 | { | |
3650 | ofputil_put_packet_in(&pin->public, version, buffer_id, | |
3651 | include_bytes, msg); | |
3652 | ||
3653 | size_t continuation_ofs = ofpprop_start_nested(msg, NXPINT_CONTINUATION); | |
3654 | size_t inner_ofs = msg->size; | |
3655 | ||
3656 | if (!uuid_is_zero(&pin->bridge)) { | |
3657 | ofpprop_put_uuid(msg, NXCPT_BRIDGE, &pin->bridge); | |
3658 | } | |
3659 | ||
3660 | for (size_t i = 0; i < pin->n_stack; i++) { | |
3661 | const union mf_subvalue *s = &pin->stack[i]; | |
3662 | size_t ofs; | |
3663 | for (ofs = 0; ofs < sizeof *s; ofs++) { | |
3664 | if (s->u8[ofs]) { | |
3665 | break; | |
3666 | } | |
3667 | } | |
3668 | ||
3669 | ofpprop_put(msg, NXCPT_STACK, &s->u8[ofs], sizeof *s - ofs); | |
3670 | } | |
3671 | ||
3672 | if (pin->mirrors) { | |
3673 | ofpprop_put_u32(msg, NXCPT_MIRRORS, pin->mirrors); | |
3674 | } | |
3675 | ||
3676 | if (pin->conntracked) { | |
3677 | ofpprop_put_flag(msg, NXCPT_CONNTRACKED); | |
3678 | } | |
3679 | ||
3680 | if (pin->actions_len) { | |
3681 | /* Divide 'pin->actions' into groups that begins with an | |
3682 | * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and | |
3683 | * NXCPT_COOKIE property (if either has changed; each is initially | |
3684 | * assumed 0), then a NXCPT_ACTIONS property with the grouped | |
3685 | * actions. | |
3686 | * | |
3687 | * The alternative is to make OFPACT_UNROLL_XLATE public. We can | |
3688 | * always do that later, since this is a private property. */ | |
3689 | const struct ofpact *const end = ofpact_end(pin->actions, | |
3690 | pin->actions_len); | |
3691 | const struct ofpact_unroll_xlate *unroll = NULL; | |
3692 | uint8_t table_id = 0; | |
3693 | ovs_be64 cookie = 0; | |
3694 | ||
3695 | const struct ofpact *a; | |
3696 | for (a = pin->actions; ; a = ofpact_next(a)) { | |
3697 | if (a == end || a->type == OFPACT_UNROLL_XLATE) { | |
3698 | if (unroll) { | |
3699 | if (table_id != unroll->rule_table_id) { | |
3700 | ofpprop_put_u8(msg, NXCPT_TABLE_ID, | |
3701 | unroll->rule_table_id); | |
3702 | table_id = unroll->rule_table_id; | |
3703 | } | |
3704 | if (cookie != unroll->rule_cookie) { | |
3705 | ofpprop_put_be64(msg, NXCPT_COOKIE, | |
3706 | unroll->rule_cookie); | |
3707 | cookie = unroll->rule_cookie; | |
3708 | } | |
3709 | } | |
3710 | ||
3711 | const struct ofpact *start | |
3712 | = unroll ? ofpact_next(&unroll->ofpact) : pin->actions; | |
3713 | put_actions_property(msg, NXCPT_ACTIONS, version, | |
3714 | start, (a - start) * sizeof *a); | |
3715 | ||
3716 | if (a == end) { | |
3717 | break; | |
3718 | } | |
3719 | unroll = ofpact_get_UNROLL_XLATE(a); | |
3720 | } | |
3721 | } | |
3722 | } | |
3723 | ||
3724 | if (pin->action_set_len) { | |
3725 | size_t start = ofpprop_start_nested(msg, NXCPT_ACTION_SET); | |
3726 | ofpacts_put_openflow_actions(pin->action_set, | |
3727 | pin->action_set_len, msg, version); | |
3728 | ofpprop_end(msg, start); | |
3729 | } | |
3730 | ||
3731 | if (msg->size > inner_ofs) { | |
3732 | ofpprop_end(msg, continuation_ofs); | |
3733 | } else { | |
3734 | msg->size = continuation_ofs; | |
3735 | } | |
3736 | } | |
3737 | ||
0f83fea0 | 3738 | static struct ofpbuf * |
9bfe9334 BP |
3739 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin, |
3740 | uint32_t buffer_id) | |
0f83fea0 BP |
3741 | { |
3742 | struct ofp10_packet_in *opi; | |
9bfe9334 | 3743 | struct ofpbuf *msg; |
0f83fea0 | 3744 | |
9bfe9334 | 3745 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, |
4adaf182 | 3746 | htonl(0), pin->packet_len); |
9bfe9334 | 3747 | opi = ofpbuf_put_zeros(msg, offsetof(struct ofp10_packet_in, data)); |
4adaf182 | 3748 | opi->total_len = htons(pin->packet_len); |
50dcbd8e | 3749 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
9bfe9334 BP |
3750 | opi->reason = encode_packet_in_reason(pin->reason, OFP10_VERSION); |
3751 | opi->buffer_id = htonl(buffer_id); | |
0f83fea0 | 3752 | |
9bfe9334 | 3753 | return msg; |
0f83fea0 BP |
3754 | } |
3755 | ||
3756 | static struct ofpbuf * | |
9bfe9334 | 3757 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin, |
6409e008 | 3758 | enum ofp_version version, uint32_t buffer_id) |
0f83fea0 BP |
3759 | { |
3760 | struct nx_packet_in *npi; | |
9bfe9334 | 3761 | struct ofpbuf *msg; |
0f83fea0 BP |
3762 | size_t match_len; |
3763 | ||
0f83fea0 | 3764 | /* The final argument is just an estimate of the space required. */ |
6409e008 | 3765 | msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, version, |
4adaf182 | 3766 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
9bfe9334 BP |
3767 | ofpbuf_put_zeros(msg, sizeof *npi); |
3768 | match_len = nx_put_match(msg, &pin->flow_metadata, 0, 0); | |
3769 | ofpbuf_put_zeros(msg, 2); | |
3770 | ||
3771 | npi = msg->msg; | |
3772 | npi->buffer_id = htonl(buffer_id); | |
4adaf182 | 3773 | npi->total_len = htons(pin->packet_len); |
6409e008 | 3774 | npi->reason = encode_packet_in_reason(pin->reason, version); |
0f83fea0 BP |
3775 | npi->table_id = pin->table_id; |
3776 | npi->cookie = pin->cookie; | |
3777 | npi->match_len = htons(match_len); | |
3778 | ||
9bfe9334 | 3779 | return msg; |
0f83fea0 BP |
3780 | } |
3781 | ||
6409e008 | 3782 | static struct ofpbuf * |
77ab5fd2 | 3783 | ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private *pin, |
6409e008 BP |
3784 | enum ofp_version version, uint32_t buffer_id, |
3785 | size_t include_bytes) | |
3786 | { | |
3787 | /* 'extra' is just an estimate of the space required. */ | |
77ab5fd2 BP |
3788 | size_t extra = (pin->public.packet_len |
3789 | + NXM_TYPICAL_LEN /* flow_metadata */ | |
3790 | + pin->n_stack * 16 | |
3791 | + pin->actions_len | |
3792 | + pin->action_set_len | |
3793 | + 256); /* fudge factor */ | |
6409e008 BP |
3794 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2, version, |
3795 | htonl(0), extra); | |
3796 | ||
77ab5fd2 BP |
3797 | ofputil_put_packet_in_private(pin, version, buffer_id, include_bytes, msg); |
3798 | if (pin->public.userdata_len) { | |
3799 | ofpprop_put(msg, NXPINT_USERDATA, pin->public.userdata, | |
3800 | pin->public.userdata_len); | |
bdcad671 BP |
3801 | } |
3802 | ||
6409e008 BP |
3803 | ofpmsg_update_length(msg); |
3804 | return msg; | |
3805 | } | |
3806 | ||
4d197ebb | 3807 | static struct ofpbuf * |
9bfe9334 BP |
3808 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin, |
3809 | uint32_t buffer_id) | |
4d197ebb BP |
3810 | { |
3811 | struct ofp11_packet_in *opi; | |
9bfe9334 | 3812 | struct ofpbuf *msg; |
4d197ebb | 3813 | |
9bfe9334 | 3814 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, |
4adaf182 | 3815 | htonl(0), pin->packet_len); |
9bfe9334 BP |
3816 | opi = ofpbuf_put_zeros(msg, sizeof *opi); |
3817 | opi->buffer_id = htonl(buffer_id); | |
3818 | opi->in_port = ofputil_port_to_ofp11( | |
3819 | pin->flow_metadata.flow.in_port.ofp_port); | |
4d197ebb | 3820 | opi->in_phy_port = opi->in_port; |
4adaf182 | 3821 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3822 | opi->reason = encode_packet_in_reason(pin->reason, OFP11_VERSION); |
4d197ebb BP |
3823 | opi->table_id = pin->table_id; |
3824 | ||
9bfe9334 | 3825 | return msg; |
4d197ebb BP |
3826 | } |
3827 | ||
0f83fea0 BP |
3828 | static struct ofpbuf * |
3829 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
9bfe9334 BP |
3830 | enum ofp_version version, |
3831 | uint32_t buffer_id) | |
0f83fea0 | 3832 | { |
43948fa5 BP |
3833 | enum ofpraw raw = (version >= OFP13_VERSION |
3834 | ? OFPRAW_OFPT13_PACKET_IN | |
3835 | : OFPRAW_OFPT12_PACKET_IN); | |
3836 | struct ofpbuf *msg; | |
0f83fea0 | 3837 | |
0f83fea0 | 3838 | /* The final argument is just an estimate of the space required. */ |
43948fa5 | 3839 | msg = ofpraw_alloc_xid(raw, version, |
4adaf182 | 3840 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3841 | |
43948fa5 | 3842 | struct ofp12_packet_in *opi = ofpbuf_put_zeros(msg, sizeof *opi); |
9bfe9334 | 3843 | opi->buffer_id = htonl(buffer_id); |
4adaf182 | 3844 | opi->total_len = htons(pin->packet_len); |
9bfe9334 | 3845 | opi->reason = encode_packet_in_reason(pin->reason, version); |
43948fa5 | 3846 | opi->table_id = pin->table_id; |
9bfe9334 | 3847 | |
43948fa5 BP |
3848 | if (version >= OFP13_VERSION) { |
3849 | ovs_be64 cookie = pin->cookie; | |
3850 | ofpbuf_put(msg, &cookie, sizeof cookie); | |
0f83fea0 BP |
3851 | } |
3852 | ||
43948fa5 BP |
3853 | oxm_put_match(msg, &pin->flow_metadata, version); |
3854 | ofpbuf_put_zeros(msg, 2); | |
43948fa5 BP |
3855 | |
3856 | return msg; | |
0f83fea0 BP |
3857 | } |
3858 | ||
77ab5fd2 BP |
3859 | /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message |
3860 | * for 'protocol', using the packet-in format specified by 'packet_in_format'. | |
9bfe9334 BP |
3861 | * |
3862 | * If 'pkt_buf' is nonnull and 'max_len' allows the packet to be buffered, this | |
3863 | * function will attempt to obtain a buffer ID from 'pktbuf' and truncate the | |
3864 | * packet to 'max_len' bytes. Otherwise, or if 'pktbuf' doesn't have a free | |
77ab5fd2 BP |
3865 | * buffer, it will send the whole packet without buffering. |
3866 | * | |
3867 | * This function is really meant only for use by ovs-vswitchd. To any other | |
3868 | * code, the "continuation" data, i.e. the data that is in struct | |
3869 | * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed | |
3870 | * to be opaque (and it might change from one OVS version to another). Thus, | |
3871 | * if any other code wants to encode a packet-in, it should use a non-"private" | |
3872 | * version of this function. (Such a version doesn't currently exist because | |
3873 | * only ovs-vswitchd currently wants to encode packet-ins. If you need one, | |
3874 | * write it...) */ | |
ebb57021 | 3875 | struct ofpbuf * |
77ab5fd2 BP |
3876 | ofputil_encode_packet_in_private(const struct ofputil_packet_in_private *pin, |
3877 | enum ofputil_protocol protocol, | |
3878 | enum nx_packet_in_format packet_in_format, | |
3879 | uint16_t max_len, struct pktbuf *pktbuf) | |
ebb57021 | 3880 | { |
9bfe9334 BP |
3881 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
3882 | ||
3883 | /* Get buffer ID. */ | |
77ab5fd2 | 3884 | ofp_port_t in_port = pin->public.flow_metadata.flow.in_port.ofp_port; |
9bfe9334 | 3885 | uint32_t buffer_id = (max_len != OFPCML12_NO_BUFFER && pktbuf |
77ab5fd2 BP |
3886 | ? pktbuf_save(pktbuf, pin->public.packet, |
3887 | pin->public.packet_len, in_port) | |
9bfe9334 | 3888 | : UINT32_MAX); |
ebb57021 | 3889 | |
6409e008 BP |
3890 | /* Calculate the number of bytes of the packet to include in the |
3891 | * packet-in: | |
3892 | * | |
3893 | * - If not buffered, the whole thing. | |
3894 | * | |
3895 | * - Otherwise, no more than 'max_len' bytes. */ | |
3896 | size_t include_bytes = (buffer_id == UINT32_MAX | |
77ab5fd2 BP |
3897 | ? pin->public.packet_len |
3898 | : MIN(max_len, pin->public.packet_len)); | |
6409e008 | 3899 | |
9bfe9334 | 3900 | struct ofpbuf *msg; |
6409e008 BP |
3901 | switch (packet_in_format) { |
3902 | case NXPIF_STANDARD: | |
3903 | switch (protocol) { | |
3904 | case OFPUTIL_P_OF10_STD: | |
3905 | case OFPUTIL_P_OF10_STD_TID: | |
3906 | case OFPUTIL_P_OF10_NXM: | |
3907 | case OFPUTIL_P_OF10_NXM_TID: | |
77ab5fd2 | 3908 | msg = ofputil_encode_ofp10_packet_in(&pin->public, buffer_id); |
6409e008 | 3909 | break; |
2e1ae200 | 3910 | |
6409e008 | 3911 | case OFPUTIL_P_OF11_STD: |
77ab5fd2 | 3912 | msg = ofputil_encode_ofp11_packet_in(&pin->public, buffer_id); |
6409e008 BP |
3913 | break; |
3914 | ||
3915 | case OFPUTIL_P_OF12_OXM: | |
3916 | case OFPUTIL_P_OF13_OXM: | |
3917 | case OFPUTIL_P_OF14_OXM: | |
3918 | case OFPUTIL_P_OF15_OXM: | |
b79d45a1 | 3919 | case OFPUTIL_P_OF16_OXM: |
77ab5fd2 | 3920 | msg = ofputil_encode_ofp12_packet_in(&pin->public, version, buffer_id); |
6409e008 BP |
3921 | break; |
3922 | ||
3923 | default: | |
3924 | OVS_NOT_REACHED(); | |
3925 | } | |
4d197ebb | 3926 | break; |
d94240ec | 3927 | |
6409e008 | 3928 | case NXPIF_NXT_PACKET_IN: |
77ab5fd2 | 3929 | msg = ofputil_encode_nx_packet_in(&pin->public, version, buffer_id); |
0f83fea0 BP |
3930 | break; |
3931 | ||
6409e008 BP |
3932 | case NXPIF_NXT_PACKET_IN2: |
3933 | return ofputil_encode_nx_packet_in2(pin, version, buffer_id, | |
3934 | include_bytes); | |
3935 | ||
0f83fea0 | 3936 | default: |
428b2edd | 3937 | OVS_NOT_REACHED(); |
54834960 | 3938 | } |
54834960 | 3939 | |
77ab5fd2 | 3940 | ofpbuf_put(msg, pin->public.packet, include_bytes); |
9bfe9334 BP |
3941 | ofpmsg_update_length(msg); |
3942 | return msg; | |
ebb57021 BP |
3943 | } |
3944 | ||
5014a89d BP |
3945 | /* Returns a string form of 'reason'. The return value is either a statically |
3946 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3947 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3948 | const char * |
5014a89d BP |
3949 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3950 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3951 | { |
7c1a76a4 BP |
3952 | switch (reason) { |
3953 | case OFPR_NO_MATCH: | |
3954 | return "no_match"; | |
3955 | case OFPR_ACTION: | |
3956 | return "action"; | |
3957 | case OFPR_INVALID_TTL: | |
3958 | return "invalid_ttl"; | |
424467c6 SS |
3959 | case OFPR_ACTION_SET: |
3960 | return "action_set"; | |
3961 | case OFPR_GROUP: | |
3962 | return "group"; | |
3963 | case OFPR_PACKET_OUT: | |
3964 | return "packet_out"; | |
9bfe9334 BP |
3965 | case OFPR_EXPLICIT_MISS: |
3966 | case OFPR_IMPLICIT_MISS: | |
3967 | return ""; | |
7c1a76a4 BP |
3968 | |
3969 | case OFPR_N_REASONS: | |
3970 | default: | |
5014a89d BP |
3971 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3972 | return reasonbuf; | |
7c1a76a4 BP |
3973 | } |
3974 | } | |
3975 | ||
3976 | bool | |
3977 | ofputil_packet_in_reason_from_string(const char *s, | |
3978 | enum ofp_packet_in_reason *reason) | |
3979 | { | |
3980 | int i; | |
3981 | ||
3982 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3983 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3984 | const char *reason_s; | |
3985 | ||
3986 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3987 | sizeof reasonbuf); | |
3988 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3989 | *reason = i; |
3990 | return true; | |
3991 | } | |
3992 | } | |
3993 | return false; | |
3994 | } | |
3995 | ||
77ab5fd2 BP |
3996 | /* Returns a newly allocated NXT_RESUME message for 'pin', with the given |
3997 | * 'continuation', for 'protocol'. This message is suitable for resuming the | |
3998 | * pipeline traveral of the packet represented by 'pin', if sent to the switch | |
3999 | * from which 'pin' was received. */ | |
4000 | struct ofpbuf * | |
4001 | ofputil_encode_resume(const struct ofputil_packet_in *pin, | |
4002 | const struct ofpbuf *continuation, | |
4003 | enum ofputil_protocol protocol) | |
4004 | { | |
4005 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); | |
4006 | size_t extra = pin->packet_len + NXM_TYPICAL_LEN + continuation->size; | |
4007 | struct ofpbuf *msg = ofpraw_alloc_xid(OFPRAW_NXT_RESUME, version, | |
4008 | 0, extra); | |
4009 | ofputil_put_packet_in(pin, version, UINT32_MAX, pin->packet_len, msg); | |
4010 | ofpprop_put_nested(msg, NXPINT_CONTINUATION, continuation); | |
4011 | ofpmsg_update_length(msg); | |
4012 | return msg; | |
4013 | } | |
4014 | ||
4015 | static enum ofperr | |
4016 | parse_subvalue_prop(const struct ofpbuf *property, union mf_subvalue *sv) | |
4017 | { | |
4018 | unsigned int len = ofpbuf_msgsize(property); | |
4019 | if (len > sizeof *sv) { | |
4020 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXCPT_STACK property has bad length %u", | |
4021 | len); | |
4022 | return OFPERR_OFPBPC_BAD_LEN; | |
4023 | } | |
4024 | memset(sv, 0, sizeof *sv); | |
4025 | memcpy(&sv->u8[sizeof *sv - len], property->msg, len); | |
4026 | return 0; | |
4027 | } | |
4028 | ||
4029 | static enum ofperr | |
4030 | parse_actions_property(struct ofpbuf *property, enum ofp_version version, | |
4031 | struct ofpbuf *ofpacts) | |
4032 | { | |
4033 | if (!ofpbuf_try_pull(property, ROUND_UP(ofpbuf_headersize(property), 8))) { | |
4034 | VLOG_WARN_RL(&bad_ofmsg_rl, "actions property has bad length %"PRIu32, | |
4035 | property->size); | |
4036 | return OFPERR_OFPBPC_BAD_LEN; | |
4037 | } | |
4038 | ||
4039 | return ofpacts_pull_openflow_actions(property, property->size, | |
4040 | version, ofpacts); | |
4041 | } | |
4042 | ||
4043 | /* This is like ofputil_decode_packet_in(), except that it decodes the | |
4044 | * continuation data into 'pin'. The format of this data is supposed to be | |
4045 | * opaque to any process other than ovs-vswitchd, so this function should not | |
4046 | * be used outside ovs-vswitchd. | |
4047 | * | |
4048 | * When successful, 'pin' contains some dynamically allocated data. Call | |
4049 | * ofputil_packet_in_private_destroy() to free this data. */ | |
4050 | enum ofperr | |
4051 | ofputil_decode_packet_in_private(const struct ofp_header *oh, bool loose, | |
4052 | struct ofputil_packet_in_private *pin, | |
4053 | size_t *total_len, uint32_t *buffer_id) | |
4054 | { | |
4055 | memset(pin, 0, sizeof *pin); | |
4056 | ||
4057 | struct ofpbuf continuation; | |
4058 | enum ofperr error; | |
4059 | error = ofputil_decode_packet_in(oh, loose, &pin->public, total_len, | |
4060 | buffer_id, &continuation); | |
4061 | if (error) { | |
4062 | return error; | |
4063 | } | |
4064 | ||
4065 | struct ofpbuf actions, action_set; | |
4066 | ofpbuf_init(&actions, 0); | |
4067 | ofpbuf_init(&action_set, 0); | |
4068 | ||
4069 | uint8_t table_id = 0; | |
4070 | ovs_be64 cookie = 0; | |
4071 | ||
4072 | size_t allocated_stack = 0; | |
4073 | ||
4074 | while (continuation.size > 0) { | |
4075 | struct ofpbuf payload; | |
4076 | uint64_t type; | |
4077 | ||
4078 | error = ofpprop_pull(&continuation, &payload, &type); | |
4079 | ovs_assert(!error); | |
4080 | ||
4081 | switch (type) { | |
4082 | case NXCPT_BRIDGE: | |
4083 | error = ofpprop_parse_uuid(&payload, &pin->bridge); | |
4084 | break; | |
4085 | ||
4086 | case NXCPT_STACK: | |
4087 | if (pin->n_stack >= allocated_stack) { | |
4088 | pin->stack = x2nrealloc(pin->stack, &allocated_stack, | |
4089 | sizeof *pin->stack); | |
4090 | } | |
4091 | error = parse_subvalue_prop(&payload, | |
4092 | &pin->stack[pin->n_stack++]); | |
4093 | break; | |
4094 | ||
4095 | case NXCPT_MIRRORS: | |
4096 | error = ofpprop_parse_u32(&payload, &pin->mirrors); | |
4097 | break; | |
4098 | ||
4099 | case NXCPT_CONNTRACKED: | |
4100 | pin->conntracked = true; | |
4101 | break; | |
4102 | ||
4103 | case NXCPT_TABLE_ID: | |
4104 | error = ofpprop_parse_u8(&payload, &table_id); | |
4105 | break; | |
4106 | ||
4107 | case NXCPT_COOKIE: | |
4108 | error = ofpprop_parse_be64(&payload, &cookie); | |
4109 | break; | |
4110 | ||
4111 | case NXCPT_ACTIONS: { | |
4112 | struct ofpact_unroll_xlate *unroll | |
4113 | = ofpact_put_UNROLL_XLATE(&actions); | |
4114 | unroll->rule_table_id = table_id; | |
4115 | unroll->rule_cookie = cookie; | |
4116 | error = parse_actions_property(&payload, oh->version, &actions); | |
4117 | break; | |
4118 | } | |
4119 | ||
4120 | case NXCPT_ACTION_SET: | |
4121 | error = parse_actions_property(&payload, oh->version, &action_set); | |
4122 | break; | |
4123 | ||
4124 | default: | |
4125 | error = OFPPROP_UNKNOWN(loose, "continuation", type); | |
4126 | break; | |
4127 | } | |
4128 | if (error) { | |
4129 | break; | |
4130 | } | |
4131 | } | |
4132 | ||
4133 | pin->actions_len = actions.size; | |
4134 | pin->actions = ofpbuf_steal_data(&actions); | |
4135 | pin->action_set_len = action_set.size; | |
4136 | pin->action_set = ofpbuf_steal_data(&action_set); | |
4137 | ||
4138 | if (error) { | |
4139 | ofputil_packet_in_private_destroy(pin); | |
4140 | } | |
4141 | ||
4142 | return 0; | |
4143 | } | |
4144 | ||
4145 | /* Frees data in 'pin' that is dynamically allocated by | |
4146 | * ofputil_decode_packet_in_private(). | |
4147 | * | |
4148 | * 'pin->public' contains some pointer members that | |
4149 | * ofputil_decode_packet_in_private() doesn't initialize to newly allocated | |
4150 | * data, so this function doesn't free those. */ | |
4151 | void | |
4152 | ofputil_packet_in_private_destroy(struct ofputil_packet_in_private *pin) | |
4153 | { | |
4154 | if (pin) { | |
4155 | free(pin->stack); | |
4156 | free(pin->actions); | |
4157 | free(pin->action_set); | |
4158 | } | |
4159 | } | |
4160 | ||
f25d0cf3 BP |
4161 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
4162 | * 'po'. | |
4163 | * | |
4164 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
4165 | * message's actions. The caller must initialize 'ofpacts' and retains | |
4166 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
4167 | * | |
4168 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
4169 | enum ofperr |
4170 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 4171 | const struct ofp_header *oh, |
f25d0cf3 | 4172 | struct ofpbuf *ofpacts) |
c6a93eb7 | 4173 | { |
0a2869d5 BP |
4174 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4175 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4176 | |
9abca1e5 | 4177 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
4178 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
4179 | enum ofperr error; | |
4180 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
4181 | ||
4182 | po->buffer_id = ntohl(opo->buffer_id); | |
4183 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
4184 | if (error) { | |
4185 | return error; | |
4186 | } | |
4187 | ||
e3f8f887 JR |
4188 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4189 | oh->version, ofpacts); | |
eb5ee596 SH |
4190 | if (error) { |
4191 | return error; | |
4192 | } | |
eb5ee596 | 4193 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 4194 | enum ofperr error; |
31a9e63f | 4195 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
4196 | |
4197 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 4198 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 4199 | |
e3f8f887 JR |
4200 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
4201 | oh->version, ofpacts); | |
8a6bc7cd SH |
4202 | if (error) { |
4203 | return error; | |
4204 | } | |
4205 | } else { | |
428b2edd | 4206 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
4207 | } |
4208 | ||
4e022ec0 AW |
4209 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
4210 | && po->in_port != OFPP_LOCAL | |
751c7785 | 4211 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
4212 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
4213 | po->in_port); | |
2e1bfcb6 | 4214 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
4215 | } |
4216 | ||
6fd6ed71 PS |
4217 | po->ofpacts = ofpacts->data; |
4218 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
4219 | |
4220 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
4221 | po->packet = b.data; |
4222 | po->packet_len = b.size; | |
c6a93eb7 BP |
4223 | } else { |
4224 | po->packet = NULL; | |
4225 | po->packet_len = 0; | |
4226 | } | |
4227 | ||
4228 | return 0; | |
4229 | } | |
6c038611 BP |
4230 | \f |
4231 | /* ofputil_phy_port */ | |
4232 | ||
4233 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
4234 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
4235 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4236 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4237 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4238 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4239 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4240 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4241 | ||
4242 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
4243 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
4244 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
4245 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
4246 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
4247 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 4248 | |
9e1fd49b BP |
4249 | static enum netdev_features |
4250 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
4251 | { |
4252 | uint32_t ofp10 = ntohl(ofp10_); | |
4253 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
4254 | } | |
4255 | ||
9e1fd49b BP |
4256 | static ovs_be32 |
4257 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
4258 | { |
4259 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
4260 | } | |
c6a93eb7 | 4261 | |
9e1fd49b BP |
4262 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
4263 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
4264 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
4265 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
4266 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
4267 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
4268 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
4269 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
4270 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
4271 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
4272 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
4273 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
4274 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
4275 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
4276 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
4277 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
4278 | ||
4279 | static enum netdev_features | |
4280 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
4281 | { | |
4282 | return ntohl(ofp11) & 0xffff; | |
4283 | } | |
4284 | ||
4285 | static ovs_be32 | |
4286 | netdev_port_features_to_ofp11(enum netdev_features features) | |
4287 | { | |
4288 | return htonl(features & 0xffff); | |
4289 | } | |
4290 | ||
4291 | static enum ofperr | |
4292 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
4293 | const struct ofp10_phy_port *opp) | |
4294 | { | |
4e022ec0 | 4295 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 4296 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
4297 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
4298 | ||
4299 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
4300 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
4301 | ||
4302 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
4303 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
4304 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
4305 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
4306 | ||
d02a5f8e BP |
4307 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
4308 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
4309 | |
4310 | return 0; | |
4311 | } | |
4312 | ||
4313 | static enum ofperr | |
4314 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
4315 | const struct ofp11_port *op) | |
4316 | { | |
4317 | enum ofperr error; | |
4318 | ||
9e1fd49b BP |
4319 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
4320 | if (error) { | |
4321 | return error; | |
4322 | } | |
74ff3298 | 4323 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
4324 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4325 | ||
4326 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 4327 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
4328 | |
4329 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
4330 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
4331 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
4332 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
4333 | ||
4334 | pp->curr_speed = ntohl(op->curr_speed); | |
4335 | pp->max_speed = ntohl(op->max_speed); | |
4336 | ||
4337 | return 0; | |
4338 | } | |
4339 | ||
8c3cc785 BP |
4340 | static enum ofperr |
4341 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
4342 | struct ofputil_phy_port *pp) | |
4343 | { | |
6fd6ed71 | 4344 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 4345 | |
6fd6ed71 | 4346 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
4347 | return OFPERR_OFPBPC_BAD_LEN; |
4348 | } | |
4349 | ||
4350 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
4351 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
4352 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
4353 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
4354 | ||
4355 | pp->curr_speed = ntohl(eth->curr_speed); | |
4356 | pp->max_speed = ntohl(eth->max_speed); | |
4357 | ||
4358 | return 0; | |
4359 | } | |
4360 | ||
4361 | static enum ofperr | |
4362 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
4363 | { | |
0a2869d5 | 4364 | struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op); |
8c3cc785 BP |
4365 | if (!op) { |
4366 | return OFPERR_OFPBRC_BAD_LEN; | |
4367 | } | |
4368 | ||
0a2869d5 | 4369 | size_t len = ntohs(op->length); |
6fd6ed71 | 4370 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
4371 | return OFPERR_OFPBRC_BAD_LEN; |
4372 | } | |
4373 | len -= sizeof *op; | |
8c3cc785 | 4374 | |
0a2869d5 | 4375 | enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
8c3cc785 BP |
4376 | if (error) { |
4377 | return error; | |
4378 | } | |
74ff3298 | 4379 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
4380 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
4381 | ||
4382 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
4383 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
4384 | ||
0a2869d5 BP |
4385 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
4386 | len); | |
6fd6ed71 | 4387 | while (properties.size > 0) { |
8c3cc785 BP |
4388 | struct ofpbuf payload; |
4389 | enum ofperr error; | |
34a543e3 | 4390 | uint64_t type; |
8c3cc785 | 4391 | |
c5562271 | 4392 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
4393 | if (error) { |
4394 | return error; | |
4395 | } | |
4396 | ||
4397 | switch (type) { | |
4398 | case OFPPDPT14_ETHERNET: | |
4399 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
4400 | break; | |
4401 | ||
4402 | default: | |
34a543e3 | 4403 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
4404 | break; |
4405 | } | |
4406 | ||
4407 | if (error) { | |
4408 | return error; | |
4409 | } | |
4410 | } | |
4411 | ||
4412 | return 0; | |
4413 | } | |
4414 | ||
9e1fd49b BP |
4415 | static void |
4416 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
4417 | struct ofp10_phy_port *opp) | |
4418 | { | |
4419 | memset(opp, 0, sizeof *opp); | |
4420 | ||
4e022ec0 | 4421 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 4422 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4423 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4424 | ||
4425 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
4426 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
4427 | ||
4428 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
4429 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
4430 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
4431 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
4432 | } | |
4433 | ||
4434 | static void | |
4435 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
4436 | struct ofp11_port *op) | |
4437 | { | |
4438 | memset(op, 0, sizeof *op); | |
4439 | ||
4440 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 4441 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
4442 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
4443 | ||
4444 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4445 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4446 | ||
4447 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
4448 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4449 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
4450 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
4451 | ||
4452 | op->curr_speed = htonl(pp->curr_speed); | |
4453 | op->max_speed = htonl(pp->max_speed); | |
4454 | } | |
4455 | ||
8c3cc785 BP |
4456 | static void |
4457 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
4458 | struct ofpbuf *b) | |
4459 | { | |
4460 | struct ofp14_port *op; | |
4461 | struct ofp14_port_desc_prop_ethernet *eth; | |
4462 | ||
4463 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
4464 | ||
4465 | op = ofpbuf_put_zeros(b, sizeof *op); | |
4466 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
4467 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 4468 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
4469 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
4470 | op->config = htonl(pp->config & OFPPC11_ALL); | |
4471 | op->state = htonl(pp->state & OFPPS11_ALL); | |
4472 | ||
303721ee | 4473 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
8c3cc785 BP |
4474 | eth->curr = netdev_port_features_to_ofp11(pp->curr); |
4475 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
4476 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
4477 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
4478 | eth->curr_speed = htonl(pp->curr_speed); | |
4479 | eth->max_speed = htonl(pp->max_speed); | |
4480 | } | |
4481 | ||
9e1fd49b | 4482 | static void |
2e3fa633 SH |
4483 | ofputil_put_phy_port(enum ofp_version ofp_version, |
4484 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 4485 | { |
2e3fa633 SH |
4486 | switch (ofp_version) { |
4487 | case OFP10_VERSION: { | |
6b0f20ac BP |
4488 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4489 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4490 | break; |
4491 | } | |
4492 | ||
4493 | case OFP11_VERSION: | |
2e1ae200 JR |
4494 | case OFP12_VERSION: |
4495 | case OFP13_VERSION: { | |
6b0f20ac BP |
4496 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4497 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4498 | break; |
4499 | } | |
4500 | ||
c37c0382 | 4501 | case OFP14_VERSION: |
42dccab5 | 4502 | case OFP15_VERSION: |
b79d45a1 | 4503 | case OFP16_VERSION: |
8c3cc785 | 4504 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4505 | break; |
4506 | ||
2e3fa633 | 4507 | default: |
428b2edd | 4508 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4509 | } |
4510 | } | |
2be393ed | 4511 | |
70ae4f93 BP |
4512 | enum ofperr |
4513 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4514 | ofp_port_t *port) | |
4515 | { | |
0a2869d5 BP |
4516 | struct ofpbuf b = ofpbuf_const_initializer(request, |
4517 | ntohs(request->length)); | |
4518 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
70ae4f93 BP |
4519 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { |
4520 | *port = OFPP_ANY; | |
4521 | return 0; | |
4522 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4523 | ovs_be32 *ofp11_port; | |
4524 | ||
4525 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4526 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4527 | } else { | |
4528 | OVS_NOT_REACHED(); | |
4529 | } | |
4530 | } | |
4531 | ||
4532 | struct ofpbuf * | |
4533 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4534 | ofp_port_t port) | |
4535 | { | |
4536 | struct ofpbuf *request; | |
70ae4f93 BP |
4537 | |
4538 | switch (ofp_version) { | |
4539 | case OFP10_VERSION: | |
4540 | case OFP11_VERSION: | |
4541 | case OFP12_VERSION: | |
4542 | case OFP13_VERSION: | |
4543 | case OFP14_VERSION: | |
4544 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4545 | ofp_version, 0); | |
4546 | break; | |
b79d45a1 BP |
4547 | case OFP15_VERSION: |
4548 | case OFP16_VERSION:{ | |
7448d548 | 4549 | struct ofp15_port_desc_request *req; |
70ae4f93 BP |
4550 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4551 | ofp_version, 0); | |
7448d548 MT |
4552 | req = ofpbuf_put_zeros(request, sizeof *req); |
4553 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4554 | break; |
7448d548 | 4555 | } |
70ae4f93 BP |
4556 | default: |
4557 | OVS_NOT_REACHED(); | |
4558 | } | |
4559 | ||
4560 | return request; | |
4561 | } | |
4562 | ||
2be393ed | 4563 | void |
e28ac5cf | 4564 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4565 | struct ovs_list *replies) |
2be393ed | 4566 | { |
417e7e66 | 4567 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 4568 | size_t start_ofs = reply->size; |
c37c0382 | 4569 | |
6b0f20ac BP |
4570 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4571 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4572 | } |
9e1fd49b | 4573 | \f |
ad99e2ed BP |
4574 | /* ofputil_switch_config */ |
4575 | ||
4576 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4577 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4578 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4579 | static bool | |
4580 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4581 | struct ofputil_switch_config *config) | |
4582 | { | |
0a2869d5 | 4583 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
ad99e2ed | 4584 | ofpraw_pull_assert(&b); |
ad99e2ed | 4585 | |
0a2869d5 | 4586 | const struct ofp_switch_config *osc = ofpbuf_pull(&b, sizeof *osc); |
ad99e2ed BP |
4587 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; |
4588 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4589 | ||
4590 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4591 | if (oh->version < OFP13_VERSION) { | |
4592 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4593 | valid_mask |= ttl_bit; | |
4594 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4595 | } else { | |
4596 | config->invalid_ttl_to_controller = -1; | |
4597 | } | |
4598 | ||
4599 | return !(osc->flags & ~valid_mask); | |
4600 | } | |
4601 | ||
4602 | void | |
4603 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4604 | struct ofputil_switch_config *config) | |
4605 | { | |
4606 | ofputil_decode_switch_config(oh, config); | |
4607 | } | |
4608 | ||
4609 | enum ofperr | |
4610 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4611 | struct ofputil_switch_config *config) | |
4612 | { | |
4613 | return (ofputil_decode_switch_config(oh, config) | |
4614 | ? 0 | |
4615 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4616 | } | |
4617 | ||
4618 | static struct ofpbuf * | |
4619 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4620 | struct ofpbuf *b) | |
4621 | { | |
4622 | const struct ofp_header *oh = b->data; | |
4623 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4624 | osc->flags = htons(config->frag); | |
4625 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4626 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4627 | } | |
4628 | osc->miss_send_len = htons(config->miss_send_len); | |
4629 | return b; | |
4630 | } | |
4631 | ||
4632 | struct ofpbuf * | |
4633 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4634 | const struct ofputil_switch_config *config) | |
4635 | { | |
4636 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4637 | request, 0); | |
4638 | return ofputil_put_switch_config(config, b); | |
4639 | } | |
4640 | ||
4641 | struct ofpbuf * | |
4642 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4643 | enum ofp_version version) | |
4644 | { | |
4645 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4646 | return ofputil_put_switch_config(config, b); | |
4647 | } | |
4648 | \f | |
9e1fd49b BP |
4649 | /* ofputil_switch_features */ |
4650 | ||
4651 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4652 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4653 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4654 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4655 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4656 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4657 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4658 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4659 | ||
60202987 SH |
4660 | static uint32_t |
4661 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4662 | { | |
0746a84f | 4663 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4664 | switch (ofp_version) { |
4665 | case OFP10_VERSION: | |
4666 | case OFP11_VERSION: | |
4667 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4668 | case OFP12_VERSION: | |
2e1ae200 | 4669 | case OFP13_VERSION: |
c37c0382 | 4670 | case OFP14_VERSION: |
42dccab5 | 4671 | case OFP15_VERSION: |
b79d45a1 | 4672 | case OFP16_VERSION: |
18cc69d9 | 4673 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4674 | default: |
4675 | /* Caller needs to check osf->header.version itself */ | |
4676 | return 0; | |
4677 | } | |
4678 | } | |
4679 | ||
667bb1fb BP |
4680 | /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into |
4681 | * an abstract representation in '*features', readying 'b' to iterate over the | |
4682 | * OpenFlow port structures following 'osf' with later calls to | |
4683 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_* | |
4684 | * value. */ | |
9e1fd49b | 4685 | enum ofperr |
667bb1fb BP |
4686 | ofputil_pull_switch_features(struct ofpbuf *b, |
4687 | struct ofputil_switch_features *features) | |
9e1fd49b | 4688 | { |
667bb1fb BP |
4689 | const struct ofp_header *oh = b->data; |
4690 | enum ofpraw raw = ofpraw_pull_assert(b); | |
4691 | const struct ofp_switch_features *osf = ofpbuf_pull(b, sizeof *osf); | |
9e1fd49b BP |
4692 | features->datapath_id = ntohll(osf->datapath_id); |
4693 | features->n_buffers = ntohl(osf->n_buffers); | |
4694 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4695 | features->auxiliary_id = 0; |
9e1fd49b | 4696 | |
60202987 SH |
4697 | features->capabilities = ntohl(osf->capabilities) & |
4698 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4699 | |
982697a4 | 4700 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4701 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4702 | features->capabilities |= OFPUTIL_C_STP; | |
4703 | } | |
08d1e234 BP |
4704 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4705 | OFP10_VERSION); | |
2e1ae200 JR |
4706 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4707 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4708 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4709 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4710 | } | |
08d1e234 | 4711 | features->ofpacts = 0; |
2e1ae200 JR |
4712 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4713 | features->auxiliary_id = osf->auxiliary_id; | |
4714 | } | |
9e1fd49b BP |
4715 | } else { |
4716 | return OFPERR_OFPBRC_BAD_VERSION; | |
4717 | } | |
4718 | ||
4719 | return 0; | |
4720 | } | |
4721 | ||
fca6d553 BP |
4722 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4723 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4724 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4725 | * | |
4726 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4727 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4728 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4729 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4730 | * message. | |
4731 | * | |
4732 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4733 | * stats request to get the ports. */ | |
347b7ac4 | 4734 | bool |
fca6d553 | 4735 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4736 | { |
6fd6ed71 | 4737 | struct ofp_header *oh = b->data; |
13e1aff8 | 4738 | size_t phy_port_size; |
347b7ac4 | 4739 | |
fca6d553 | 4740 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4741 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4742 | return false; |
13e1aff8 BP |
4743 | } |
4744 | ||
4745 | phy_port_size = (oh->version == OFP10_VERSION | |
4746 | ? sizeof(struct ofp10_phy_port) | |
4747 | : sizeof(struct ofp11_port)); | |
4748 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4749 | /* There's room for additional ports in the feature reply. | |
4750 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4751 | return true; |
4752 | } | |
13e1aff8 BP |
4753 | |
4754 | /* The feature reply has no room for more ports. Probably the list is | |
4755 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4756 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4757 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4758 | ofpmsg_update_length(b); |
4759 | return false; | |
347b7ac4 JP |
4760 | } |
4761 | ||
9e1fd49b BP |
4762 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4763 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4764 | * information to the buffer with subsequent calls to | |
4765 | * ofputil_put_switch_features_port(). */ | |
4766 | struct ofpbuf * | |
4767 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4768 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4769 | { | |
4770 | struct ofp_switch_features *osf; | |
4771 | struct ofpbuf *b; | |
2e3fa633 SH |
4772 | enum ofp_version version; |
4773 | enum ofpraw raw; | |
982697a4 BP |
4774 | |
4775 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4776 | switch (version) { |
4777 | case OFP10_VERSION: | |
4778 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4779 | break; | |
4780 | case OFP11_VERSION: | |
4781 | case OFP12_VERSION: | |
4782 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4783 | break; | |
2e1ae200 | 4784 | case OFP13_VERSION: |
c37c0382 | 4785 | case OFP14_VERSION: |
42dccab5 | 4786 | case OFP15_VERSION: |
b79d45a1 | 4787 | case OFP16_VERSION: |
2e1ae200 JR |
4788 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4789 | break; | |
2e3fa633 | 4790 | default: |
428b2edd | 4791 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4792 | } |
4793 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4794 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4795 | osf->datapath_id = htonll(features->datapath_id); |
4796 | osf->n_buffers = htonl(features->n_buffers); | |
4797 | osf->n_tables = features->n_tables; | |
4798 | ||
4799 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4800 | osf->capabilities = htonl(features->capabilities & |
4801 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4802 | switch (version) { |
4803 | case OFP10_VERSION: | |
9e1fd49b BP |
4804 | if (features->capabilities & OFPUTIL_C_STP) { |
4805 | osf->capabilities |= htonl(OFPC10_STP); | |
4806 | } | |
08d1e234 BP |
4807 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4808 | OFP10_VERSION); | |
2e3fa633 | 4809 | break; |
2e1ae200 | 4810 | case OFP13_VERSION: |
c37c0382 | 4811 | case OFP14_VERSION: |
42dccab5 | 4812 | case OFP15_VERSION: |
b79d45a1 | 4813 | case OFP16_VERSION: |
2e1ae200 JR |
4814 | osf->auxiliary_id = features->auxiliary_id; |
4815 | /* fall through */ | |
2e3fa633 SH |
4816 | case OFP11_VERSION: |
4817 | case OFP12_VERSION: | |
9e1fd49b BP |
4818 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4819 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4820 | } | |
2e3fa633 SH |
4821 | break; |
4822 | default: | |
428b2edd | 4823 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4824 | } |
4825 | ||
4826 | return b; | |
4827 | } | |
4828 | ||
4829 | /* Encodes 'pp' into the format required by the switch_features message already | |
4830 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4831 | * and appends the encoded version to 'b'. */ | |
4832 | void | |
4833 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4834 | struct ofpbuf *b) | |
4835 | { | |
6fd6ed71 | 4836 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4837 | |
e0c91c0c | 4838 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4839 | /* Try adding a port description to the message, but drop it again if |
4840 | * the buffer overflows. (This possibility for overflow is why | |
4841 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4842 | size_t start_ofs = b->size; |
e0c91c0c | 4843 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4844 | if (b->size > UINT16_MAX) { |
4845 | b->size = start_ofs; | |
6b0f20ac | 4846 | } |
e0c91c0c | 4847 | } |
9e1fd49b BP |
4848 | } |
4849 | \f | |
4850 | /* ofputil_port_status */ | |
4851 | ||
4852 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4853 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4854 | enum ofperr | |
982697a4 | 4855 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4856 | struct ofputil_port_status *ps) |
4857 | { | |
0a2869d5 | 4858 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
982697a4 | 4859 | ofpraw_pull_assert(&b); |
982697a4 | 4860 | |
0a2869d5 | 4861 | const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops); |
9e1fd49b BP |
4862 | if (ops->reason != OFPPR_ADD && |
4863 | ops->reason != OFPPR_DELETE && | |
4864 | ops->reason != OFPPR_MODIFY) { | |
4865 | return OFPERR_NXBRC_BAD_REASON; | |
4866 | } | |
4867 | ps->reason = ops->reason; | |
4868 | ||
0a2869d5 | 4869 | int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4870 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4871 | return retval; |
4872 | } | |
4873 | ||
4874 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4875 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4876 | * a buffer owned by the caller. */ | |
4877 | struct ofpbuf * | |
4878 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4879 | enum ofputil_protocol protocol) | |
4880 | { | |
4881 | struct ofp_port_status *ops; | |
4882 | struct ofpbuf *b; | |
2e3fa633 SH |
4883 | enum ofp_version version; |
4884 | enum ofpraw raw; | |
982697a4 BP |
4885 | |
4886 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4887 | switch (version) { |
4888 | case OFP10_VERSION: | |
4889 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4890 | break; | |
4891 | ||
4892 | case OFP11_VERSION: | |
4893 | case OFP12_VERSION: | |
2e1ae200 | 4894 | case OFP13_VERSION: |
2e3fa633 SH |
4895 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4896 | break; | |
4897 | ||
8c3cc785 | 4898 | case OFP14_VERSION: |
42dccab5 | 4899 | case OFP15_VERSION: |
b79d45a1 | 4900 | case OFP16_VERSION: |
8c3cc785 BP |
4901 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4902 | break; | |
4903 | ||
2e3fa633 | 4904 | default: |
428b2edd | 4905 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4906 | } |
4907 | ||
4908 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4909 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4910 | ops->reason = ps->reason; |
982697a4 BP |
4911 | ofputil_put_phy_port(version, &ps->desc, b); |
4912 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4913 | return b; |
4914 | } | |
918f2b82 | 4915 | |
9e1fd49b BP |
4916 | /* ofputil_port_mod */ |
4917 | ||
18cc69d9 BP |
4918 | static enum ofperr |
4919 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4920 | struct ofputil_port_mod *pm) | |
4921 | { | |
b611d3ac BP |
4922 | ovs_be32 advertise; |
4923 | enum ofperr error; | |
18cc69d9 | 4924 | |
b611d3ac BP |
4925 | error = ofpprop_parse_be32(property, &advertise); |
4926 | if (!error) { | |
4927 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 4928 | } |
b611d3ac | 4929 | return error; |
18cc69d9 BP |
4930 | } |
4931 | ||
9e1fd49b BP |
4932 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4933 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4934 | enum ofperr | |
4935 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4936 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4937 | { |
0a2869d5 BP |
4938 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
4939 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
982697a4 | 4940 | if (raw == OFPRAW_OFPT10_PORT_MOD) { |
6fd6ed71 | 4941 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4942 | |
4e022ec0 | 4943 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4944 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4945 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4946 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4947 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4948 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4949 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4950 | enum ofperr error; |
4951 | ||
9e1fd49b BP |
4952 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4953 | if (error) { | |
4954 | return error; | |
4955 | } | |
4956 | ||
74ff3298 | 4957 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4958 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4959 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4960 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4961 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4962 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4963 | enum ofperr error; | |
4964 | ||
4965 | memset(pm, 0, sizeof *pm); | |
4966 | ||
4967 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4968 | if (error) { | |
4969 | return error; | |
4970 | } | |
4971 | ||
74ff3298 | 4972 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4973 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4974 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4975 | ||
6fd6ed71 | 4976 | while (b.size > 0) { |
18cc69d9 BP |
4977 | struct ofpbuf property; |
4978 | enum ofperr error; | |
34a543e3 | 4979 | uint64_t type; |
18cc69d9 | 4980 | |
c5562271 | 4981 | error = ofpprop_pull(&b, &property, &type); |
18cc69d9 BP |
4982 | if (error) { |
4983 | return error; | |
4984 | } | |
4985 | ||
4986 | switch (type) { | |
4987 | case OFPPMPT14_ETHERNET: | |
4988 | error = parse_port_mod_ethernet_property(&property, pm); | |
4989 | break; | |
4990 | ||
4991 | default: | |
34a543e3 | 4992 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); |
18cc69d9 BP |
4993 | break; |
4994 | } | |
4995 | ||
4996 | if (error) { | |
4997 | return error; | |
4998 | } | |
4999 | } | |
9e1fd49b | 5000 | } else { |
982697a4 | 5001 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
5002 | } |
5003 | ||
5004 | pm->config &= pm->mask; | |
5005 | return 0; | |
5006 | } | |
5007 | ||
5008 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
5009 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
5010 | * owned by the caller. */ | |
5011 | struct ofpbuf * | |
5012 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
5013 | enum ofputil_protocol protocol) | |
5014 | { | |
2e3fa633 | 5015 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
5016 | struct ofpbuf *b; |
5017 | ||
2e3fa633 SH |
5018 | switch (ofp_version) { |
5019 | case OFP10_VERSION: { | |
9e1fd49b BP |
5020 | struct ofp10_port_mod *opm; |
5021 | ||
982697a4 BP |
5022 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
5023 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 5024 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 5025 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5026 | opm->config = htonl(pm->config & OFPPC10_ALL); |
5027 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
5028 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
5029 | break; |
5030 | } | |
5031 | ||
5fe7c919 | 5032 | case OFP11_VERSION: |
2e1ae200 JR |
5033 | case OFP12_VERSION: |
5034 | case OFP13_VERSION: { | |
9e1fd49b BP |
5035 | struct ofp11_port_mod *opm; |
5036 | ||
982697a4 BP |
5037 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
5038 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 5039 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 5040 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
5041 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5042 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5043 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
5044 | break; |
5045 | } | |
42dccab5 | 5046 | case OFP14_VERSION: |
b79d45a1 BP |
5047 | case OFP15_VERSION: |
5048 | case OFP16_VERSION: { | |
18cc69d9 BP |
5049 | struct ofp14_port_mod *opm; |
5050 | ||
b611d3ac | 5051 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
5052 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
5053 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 5054 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
5055 | opm->config = htonl(pm->config & OFPPC11_ALL); |
5056 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
5057 | ||
5058 | if (pm->advertise) { | |
b611d3ac BP |
5059 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
5060 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 5061 | } |
c37c0382 | 5062 | break; |
18cc69d9 | 5063 | } |
918f2b82 | 5064 | default: |
428b2edd | 5065 | OVS_NOT_REACHED(); |
918f2b82 AZ |
5066 | } |
5067 | ||
5068 | return b; | |
5069 | } | |
72b25867 BP |
5070 | \f |
5071 | /* Table features. */ | |
918f2b82 | 5072 | |
5deff5aa | 5073 | static enum ofperr |
9a4eddbb | 5074 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 5075 | uint64_t *typep) |
5deff5aa | 5076 | { |
9a4eddbb | 5077 | enum ofperr error; |
5deff5aa | 5078 | |
c5562271 | 5079 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 5080 | if (payload && !error) { |
b611d3ac | 5081 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 5082 | } |
9a4eddbb | 5083 | return error; |
5deff5aa AW |
5084 | } |
5085 | ||
5086 | static enum ofperr | |
08d1e234 BP |
5087 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
5088 | uint64_t *ofpacts) | |
5deff5aa | 5089 | { |
08d1e234 | 5090 | uint32_t types = 0; |
5deff5aa | 5091 | |
6fd6ed71 | 5092 | while (payload->size > 0) { |
08d1e234 | 5093 | enum ofperr error; |
34a543e3 | 5094 | uint64_t type; |
08d1e234 | 5095 | |
34a543e3 | 5096 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
5097 | if (error) { |
5098 | return error; | |
5099 | } | |
08d1e234 BP |
5100 | if (type < CHAR_BIT * sizeof types) { |
5101 | types |= 1u << type; | |
5deff5aa AW |
5102 | } |
5103 | } | |
08d1e234 BP |
5104 | |
5105 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
5106 | return 0; |
5107 | } | |
5108 | ||
5109 | static enum ofperr | |
5110 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
5111 | { | |
5112 | *insts = 0; | |
6fd6ed71 | 5113 | while (payload->size > 0) { |
5deff5aa AW |
5114 | enum ovs_instruction_type inst; |
5115 | enum ofperr error; | |
34a543e3 | 5116 | uint64_t ofpit; |
5deff5aa | 5117 | |
72b25867 BP |
5118 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
5119 | * It seems clear that they aren't padded to 8 bytes, though, because | |
5120 | * both standards say that "non-experimenter instructions are 4 bytes" | |
5121 | * and do not mention any padding before the first instruction ID. | |
5122 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
5123 | * aligned on an odd 4-byte boundary.) | |
5124 | * | |
5125 | * Anyway, we just assume they're all glommed together on byte | |
5126 | * boundaries. */ | |
34a543e3 | 5127 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
5128 | if (error) { |
5129 | return error; | |
5130 | } | |
5131 | ||
5132 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
5133 | if (!error) { | |
5134 | *insts |= 1u << inst; | |
5135 | } else if (!loose) { | |
5136 | return error; | |
5137 | } | |
5138 | } | |
5139 | return 0; | |
5140 | } | |
5141 | ||
5142 | static enum ofperr | |
5143 | parse_table_features_next_table(struct ofpbuf *payload, | |
5144 | unsigned long int *next_tables) | |
5145 | { | |
5146 | size_t i; | |
5147 | ||
5148 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
5149 | for (i = 0; i < payload->size; i++) { |
5150 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 5151 | if (id >= 255) { |
9a4eddbb | 5152 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
5153 | } |
5154 | bitmap_set1(next_tables, id); | |
5155 | } | |
5156 | return 0; | |
5157 | } | |
5158 | ||
5deff5aa AW |
5159 | static enum ofperr |
5160 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 5161 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 5162 | { |
abadfcb0 BP |
5163 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
5164 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 5165 | |
6fd6ed71 | 5166 | while (payload->size > 0) { |
5deff5aa AW |
5167 | const struct mf_field *field; |
5168 | enum ofperr error; | |
5169 | bool hasmask; | |
5170 | ||
178742f9 | 5171 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 5172 | if (!error) { |
abadfcb0 | 5173 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
5174 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
5175 | return error; | |
5176 | } | |
5177 | } | |
5178 | if (exactp) { | |
5179 | *exactp = exact; | |
abadfcb0 | 5180 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
5181 | return OFPERR_OFPBMC_BAD_MASK; |
5182 | } | |
5183 | if (maskedp) { | |
5184 | *maskedp = masked; | |
abadfcb0 | 5185 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
5186 | return OFPERR_OFPBMC_BAD_MASK; |
5187 | } | |
5188 | return 0; | |
5189 | } | |
5190 | ||
5191 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
5192 | * ofputil_table_features in 'tf'. | |
5193 | * | |
5194 | * If 'loose' is true, this function ignores properties and values that it does | |
5195 | * not understand, as a controller would want to do when interpreting | |
5196 | * capabilities provided by a switch. If 'loose' is false, this function | |
5197 | * treats unknown properties and values as an error, as a switch would want to | |
5198 | * do when interpreting a configuration request made by a controller. | |
5199 | * | |
5200 | * A single OpenFlow message can specify features for multiple tables. Calling | |
5201 | * this function multiple times for a single 'msg' iterates through the tables | |
5202 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
5203 | * and not modify them between calls. | |
5204 | * | |
5205 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
5206 | * a positive "enum ofperr" value. */ | |
5207 | int | |
5208 | ofputil_decode_table_features(struct ofpbuf *msg, | |
5209 | struct ofputil_table_features *tf, bool loose) | |
5210 | { | |
3c1bb396 BP |
5211 | memset(tf, 0, sizeof *tf); |
5212 | ||
6fd6ed71 | 5213 | if (!msg->header) { |
5deff5aa AW |
5214 | ofpraw_pull_assert(msg); |
5215 | } | |
5216 | ||
6fd6ed71 | 5217 | if (!msg->size) { |
5deff5aa AW |
5218 | return EOF; |
5219 | } | |
5220 | ||
0a2869d5 BP |
5221 | const struct ofp_header *oh = msg->header; |
5222 | struct ofp13_table_features *otf = msg->data; | |
6fd6ed71 | 5223 | if (msg->size < sizeof *otf) { |
9a4eddbb | 5224 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
5225 | } |
5226 | ||
0a2869d5 | 5227 | unsigned int len = ntohs(otf->length); |
6fd6ed71 | 5228 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 5229 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 5230 | } |
5deff5aa AW |
5231 | |
5232 | tf->table_id = otf->table_id; | |
5233 | if (tf->table_id == OFPTT_ALL) { | |
5234 | return OFPERR_OFPTFFC_BAD_TABLE; | |
5235 | } | |
5236 | ||
5237 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
5238 | tf->metadata_match = otf->metadata_match; | |
5239 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
5240 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
5241 | if (oh->version >= OFP14_VERSION) { | |
5242 | uint32_t caps = ntohl(otf->capabilities); | |
5243 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
5244 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
5245 | } else { | |
5246 | tf->supports_eviction = -1; | |
5247 | tf->supports_vacancy_events = -1; | |
5248 | } | |
5deff5aa AW |
5249 | tf->max_entries = ntohl(otf->max_entries); |
5250 | ||
0a2869d5 BP |
5251 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
5252 | len); | |
5253 | ofpbuf_pull(&properties, sizeof *otf); | |
6fd6ed71 | 5254 | while (properties.size > 0) { |
5deff5aa AW |
5255 | struct ofpbuf payload; |
5256 | enum ofperr error; | |
34a543e3 | 5257 | uint64_t type; |
5deff5aa | 5258 | |
ae665de5 | 5259 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
5260 | if (error) { |
5261 | return error; | |
5262 | } | |
5263 | ||
5264 | switch ((enum ofp13_table_feature_prop_type) type) { | |
5265 | case OFPTFPT13_INSTRUCTIONS: | |
5266 | error = parse_instruction_ids(&payload, loose, | |
5267 | &tf->nonmiss.instructions); | |
5268 | break; | |
5269 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
5270 | error = parse_instruction_ids(&payload, loose, | |
5271 | &tf->miss.instructions); | |
5272 | break; | |
5273 | ||
5274 | case OFPTFPT13_NEXT_TABLES: | |
5275 | error = parse_table_features_next_table(&payload, | |
5276 | tf->nonmiss.next); | |
5277 | break; | |
5278 | case OFPTFPT13_NEXT_TABLES_MISS: | |
5279 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
5280 | break; | |
5281 | ||
5282 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
5283 | error = parse_action_bitmap(&payload, oh->version, |
5284 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
5285 | break; |
5286 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
5287 | error = parse_action_bitmap(&payload, oh->version, |
5288 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
5289 | break; |
5290 | ||
5291 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
5292 | error = parse_action_bitmap(&payload, oh->version, |
5293 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
5294 | break; |
5295 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
5296 | error = parse_action_bitmap(&payload, oh->version, |
5297 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
5298 | break; |
5299 | ||
5300 | case OFPTFPT13_MATCH: | |
5301 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
5302 | break; | |
5303 | case OFPTFPT13_WILDCARDS: | |
5304 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
5305 | break; | |
5306 | ||
5307 | case OFPTFPT13_WRITE_SETFIELD: | |
5308 | error = parse_oxms(&payload, loose, | |
5309 | &tf->nonmiss.write.set_fields, NULL); | |
5310 | break; | |
5311 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
5312 | error = parse_oxms(&payload, loose, | |
5313 | &tf->miss.write.set_fields, NULL); | |
5314 | break; | |
5315 | case OFPTFPT13_APPLY_SETFIELD: | |
5316 | error = parse_oxms(&payload, loose, | |
5317 | &tf->nonmiss.apply.set_fields, NULL); | |
5318 | break; | |
5319 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
5320 | error = parse_oxms(&payload, loose, | |
5321 | &tf->miss.apply.set_fields, NULL); | |
5322 | break; | |
5323 | ||
5324 | case OFPTFPT13_EXPERIMENTER: | |
5325 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 5326 | default: |
34a543e3 | 5327 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
5328 | break; |
5329 | } | |
5330 | if (error) { | |
5331 | return error; | |
5332 | } | |
5333 | } | |
5334 | ||
5335 | /* Fix inconsistencies: | |
5336 | * | |
e7227821 BP |
5337 | * - Turn on 'match' bits that are set in 'mask', because maskable |
5338 | * fields are matchable. | |
5deff5aa AW |
5339 | * |
5340 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
5341 | * that is arbitrarily maskable can be wildcarded entirely. |
5342 | * | |
5343 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
5344 | * must be matchable for it to be meaningfully wildcarded. */ | |
5345 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 5346 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 5347 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
5348 | |
5349 | return 0; | |
5350 | } | |
5351 | ||
5352 | /* Encodes and returns a request to obtain the table features of a switch. | |
5353 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5354 | struct ofpbuf * | |
5355 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
5356 | { | |
5357 | struct ofpbuf *request = NULL; | |
5358 | ||
5359 | switch (ofp_version) { | |
5360 | case OFP10_VERSION: | |
5361 | case OFP11_VERSION: | |
5362 | case OFP12_VERSION: | |
5363 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
5364 | "(\'-O OpenFlow13\')"); | |
5365 | case OFP13_VERSION: | |
5366 | case OFP14_VERSION: | |
42dccab5 | 5367 | case OFP15_VERSION: |
b79d45a1 | 5368 | case OFP16_VERSION: |
5deff5aa AW |
5369 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
5370 | ofp_version, 0); | |
5371 | break; | |
5372 | default: | |
5373 | OVS_NOT_REACHED(); | |
5374 | } | |
5375 | ||
5376 | return request; | |
5377 | } | |
5378 | ||
3c4e10fb BP |
5379 | static void |
5380 | put_fields_property(struct ofpbuf *reply, | |
5381 | const struct mf_bitmap *fields, | |
5382 | const struct mf_bitmap *masks, | |
5383 | enum ofp13_table_feature_prop_type property, | |
5384 | enum ofp_version version) | |
5385 | { | |
5386 | size_t start_ofs; | |
5387 | int field; | |
5388 | ||
c5562271 | 5389 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 5390 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
5391 | nx_put_header(reply, field, version, |
5392 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 5393 | } |
c5562271 | 5394 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5395 | } |
5396 | ||
5397 | static void | |
5398 | put_table_action_features(struct ofpbuf *reply, | |
5399 | const struct ofputil_table_action_features *taf, | |
5400 | enum ofp13_table_feature_prop_type actions_type, | |
5401 | enum ofp13_table_feature_prop_type set_fields_type, | |
5402 | int miss_offset, enum ofp_version version) | |
5403 | { | |
c5562271 BP |
5404 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
5405 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
5406 | version))); | |
3c4e10fb BP |
5407 | put_fields_property(reply, &taf->set_fields, NULL, |
5408 | set_fields_type + miss_offset, version); | |
5409 | } | |
5410 | ||
5411 | static void | |
5412 | put_table_instruction_features( | |
5413 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
5414 | int miss_offset, enum ofp_version version) | |
5415 | { | |
5416 | size_t start_ofs; | |
5417 | uint8_t table_id; | |
5418 | ||
c5562271 BP |
5419 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
5420 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
5421 | version))); | |
3c4e10fb | 5422 | |
c5562271 | 5423 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
5424 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
5425 | ofpbuf_put(reply, &table_id, 1); | |
5426 | } | |
c5562271 | 5427 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
5428 | |
5429 | put_table_action_features(reply, &tif->write, | |
5430 | OFPTFPT13_WRITE_ACTIONS, | |
5431 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
5432 | put_table_action_features(reply, &tif->apply, | |
5433 | OFPTFPT13_APPLY_ACTIONS, | |
5434 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
5435 | } | |
5436 | ||
5437 | void | |
5438 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 5439 | struct ovs_list *replies) |
3c4e10fb | 5440 | { |
417e7e66 | 5441 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
3c4e10fb | 5442 | enum ofp_version version = ofpmp_version(replies); |
6fd6ed71 | 5443 | size_t start_ofs = reply->size; |
3c4e10fb BP |
5444 | struct ofp13_table_features *otf; |
5445 | ||
5446 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
5447 | otf->table_id = tf->table_id; | |
5448 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
5449 | otf->metadata_match = tf->metadata_match; | |
5450 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
5451 | if (version >= OFP14_VERSION) { |
5452 | if (tf->supports_eviction) { | |
5453 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
5454 | } | |
5455 | if (tf->supports_vacancy_events) { | |
5456 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
5457 | } | |
5458 | } | |
3c4e10fb BP |
5459 | otf->max_entries = htonl(tf->max_entries); |
5460 | ||
5461 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
5462 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
5463 | ||
5464 | put_fields_property(reply, &tf->match, &tf->mask, | |
5465 | OFPTFPT13_MATCH, version); | |
5466 | put_fields_property(reply, &tf->wildcard, NULL, | |
5467 | OFPTFPT13_WILDCARDS, version); | |
5468 | ||
5469 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 5470 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
5471 | ofpmp_postappend(replies, start_ofs); |
5472 | } | |
5473 | ||
bab86012 SJ |
5474 | static enum ofperr |
5475 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5476 | struct ofputil_table_desc *td) | |
5477 | { | |
5478 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5479 | ||
5480 | if (property->size != sizeof *otv) { | |
5481 | return OFPERR_OFPBPC_BAD_LEN; | |
5482 | } | |
5483 | ||
5484 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5485 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5486 | td->table_vacancy.vacancy = otv->vacancy; | |
5487 | return 0; | |
5488 | } | |
5489 | ||
03c72922 BP |
5490 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5491 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5492 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5493 | * value. */ | |
5494 | int | |
5495 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5496 | struct ofputil_table_desc *td, | |
5497 | enum ofp_version version) | |
5498 | { | |
03c72922 BP |
5499 | memset(td, 0, sizeof *td); |
5500 | ||
5501 | if (!msg->header) { | |
5502 | ofpraw_pull_assert(msg); | |
5503 | } | |
5504 | ||
5505 | if (!msg->size) { | |
5506 | return EOF; | |
5507 | } | |
5508 | ||
0a2869d5 | 5509 | struct ofp14_table_desc *otd = ofpbuf_try_pull(msg, sizeof *otd); |
03c72922 BP |
5510 | if (!otd) { |
5511 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5512 | "leftover bytes at end", msg->size); | |
5513 | return OFPERR_OFPBRC_BAD_LEN; | |
5514 | } | |
5515 | ||
5516 | td->table_id = otd->table_id; | |
0a2869d5 | 5517 | size_t length = ntohs(otd->length); |
03c72922 BP |
5518 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { |
5519 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5520 | "length %"PRIuSIZE, length); | |
5521 | return OFPERR_OFPBRC_BAD_LEN; | |
5522 | } | |
5523 | length -= sizeof *otd; | |
03c72922 BP |
5524 | |
5525 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5526 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5527 | td->eviction_flags = UINT32_MAX; |
5528 | ||
0a2869d5 BP |
5529 | struct ofpbuf properties = ofpbuf_const_initializer( |
5530 | ofpbuf_pull(msg, length), length); | |
03c72922 BP |
5531 | while (properties.size > 0) { |
5532 | struct ofpbuf payload; | |
5533 | enum ofperr error; | |
34a543e3 | 5534 | uint64_t type; |
03c72922 | 5535 | |
c5562271 | 5536 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5537 | if (error) { |
5538 | return error; | |
5539 | } | |
5540 | ||
5541 | switch (type) { | |
5542 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5543 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5544 | break; |
5545 | ||
bab86012 SJ |
5546 | case OFPTMPT14_VACANCY: |
5547 | error = parse_table_desc_vacancy_property(&payload, td); | |
5548 | break; | |
5549 | ||
03c72922 | 5550 | default: |
34a543e3 | 5551 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5552 | break; |
5553 | } | |
5554 | ||
5555 | if (error) { | |
5556 | return error; | |
5557 | } | |
5558 | } | |
5559 | ||
5560 | return 0; | |
5561 | } | |
5562 | ||
5563 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5564 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5565 | struct ofpbuf * | |
5566 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5567 | { | |
5568 | struct ofpbuf *request = NULL; | |
5569 | ||
5570 | if (ofp_version >= OFP14_VERSION) { | |
5571 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5572 | ofp_version, 0); | |
5573 | } else { | |
5574 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5575 | "(\'-O OpenFlow14\')"); | |
5576 | } | |
5577 | ||
5578 | return request; | |
5579 | } | |
5580 | ||
5581 | /* Function to append Table desc information in a reply list. */ | |
5582 | void | |
5583 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5584 | struct ovs_list *replies, | |
5585 | enum ofp_version version) | |
5586 | { | |
417e7e66 | 5587 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
03c72922 BP |
5588 | size_t start_otd; |
5589 | struct ofp14_table_desc *otd; | |
5590 | ||
5591 | start_otd = reply->size; | |
5592 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5593 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5594 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5595 | } |
bab86012 SJ |
5596 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5597 | struct ofp14_table_mod_prop_vacancy *otv; | |
5598 | ||
303721ee | 5599 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5600 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5601 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5602 | otv->vacancy = td->table_vacancy.vacancy; | |
5603 | } | |
03c72922 BP |
5604 | |
5605 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5606 | otd->length = htons(reply->size - start_otd); | |
5607 | otd->table_id = td->table_id; | |
5608 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5609 | td->eviction, td->vacancy, |
5610 | version); | |
03c72922 BP |
5611 | ofpmp_postappend(replies, start_otd); |
5612 | } | |
5613 | ||
de7d3c07 SJ |
5614 | /* This function parses Vacancy property, and decodes the |
5615 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5616 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5617 | * greater than vacancy_up and also when current vacancy has non-zero | |
5618 | * value. Returns 0 on success. */ | |
5619 | static enum ofperr | |
5620 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5621 | struct ofputil_table_mod *tm) | |
5622 | { | |
5623 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5624 | ||
5625 | if (property->size != sizeof *otv) { | |
5626 | return OFPERR_OFPBPC_BAD_LEN; | |
5627 | } | |
5628 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5629 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5630 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5631 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5632 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5633 | return OFPERR_OFPBPC_BAD_VALUE; |
5634 | } | |
5635 | if (tm->table_vacancy.vacancy_down > 100 || | |
5636 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5637 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5638 | "should not be greater than 100"); | |
de7d3c07 SJ |
5639 | return OFPERR_OFPBPC_BAD_VALUE; |
5640 | } | |
5641 | tm->table_vacancy.vacancy = otv->vacancy; | |
5642 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5643 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5644 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5645 | return OFPERR_OFPBPC_BAD_VALUE; |
5646 | } | |
5647 | return 0; | |
5648 | } | |
5649 | ||
5650 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5651 | * table configuration (a table mod, table stats, or table features message), | |
5652 | * returns the table vacancy configuration that it specifies. | |
5653 | * | |
5654 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5655 | * so for other 'version' this function always returns | |
5656 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5657 | static enum ofputil_table_vacancy | |
5658 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5659 | { | |
5660 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5661 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5662 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5663 | } | |
5664 | ||
3c1bb396 BP |
5665 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5666 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5667 | * returns the table eviction configuration that it specifies. |
5668 | * | |
5669 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5670 | * so for other 'version' values this function always returns | |
5671 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5672 | static enum ofputil_table_eviction | |
5673 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5674 | { | |
5675 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5676 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5677 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5678 | } | |
5679 | ||
5680 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5681 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5682 | * 'eviction' values. */ | |
5683 | static ovs_be32 | |
5684 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5685 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5686 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5687 | enum ofp_version version) |
5688 | { | |
de7d3c07 | 5689 | uint32_t config = 0; |
82c22d34 BP |
5690 | /* See the section "OFPTC_* Table Configuration" in DESIGN.md for more |
5691 | * information on the crazy evolution of this field. */ | |
5692 | switch (version) { | |
5693 | case OFP10_VERSION: | |
5694 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5695 | return htonl(0); | |
5696 | ||
5697 | case OFP11_VERSION: | |
5698 | case OFP12_VERSION: | |
5699 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5700 | switch (miss) { | |
5701 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5702 | /* Really this shouldn't be used for encoding (the caller should | |
5703 | * provide a specific value) but I can't imagine that defaulting to | |
5704 | * the fall-through case here will hurt. */ | |
5705 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5706 | default: | |
5707 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5708 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5709 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5710 | case OFPUTIL_TABLE_MISS_DROP: | |
5711 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5712 | } | |
5713 | OVS_NOT_REACHED(); | |
5714 | ||
5715 | case OFP13_VERSION: | |
5716 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5717 | * flags, so this is correct. */ | |
5718 | return htonl(0); | |
5719 | ||
5720 | case OFP14_VERSION: | |
5721 | case OFP15_VERSION: | |
b79d45a1 | 5722 | case OFP16_VERSION: |
de7d3c07 SJ |
5723 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5724 | * OFPTC14_VACANCY_EVENTS. */ | |
5725 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5726 | config |= OFPTC14_EVICTION; | |
5727 | } | |
5728 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5729 | config |= OFPTC14_VACANCY_EVENTS; | |
5730 | } | |
5731 | return htonl(config); | |
82c22d34 BP |
5732 | } |
5733 | ||
5734 | OVS_NOT_REACHED(); | |
5735 | } | |
5736 | ||
5737 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5738 | * table configuration (a table mod, table stats, or table features message), | |
5739 | * returns the table miss configuration that it specifies. | |
5740 | * | |
5741 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5742 | * other 'version' values this function always returns | |
5743 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5744 | static enum ofputil_table_miss |
82c22d34 | 5745 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5746 | { |
5747 | uint32_t config = ntohl(config_); | |
5748 | ||
82c22d34 | 5749 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5750 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5751 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5752 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5753 | ||
5754 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5755 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5756 | ||
5757 | case OFPTC11_TABLE_MISS_DROP: | |
5758 | return OFPUTIL_TABLE_MISS_DROP; | |
5759 | ||
5760 | default: | |
5761 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5762 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5763 | } | |
5764 | } else { | |
5765 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5766 | } | |
5767 | } | |
5768 | ||
918f2b82 AZ |
5769 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5770 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5771 | enum ofperr | |
5772 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5773 | struct ofputil_table_mod *pm) | |
5774 | { | |
82c22d34 BP |
5775 | memset(pm, 0, sizeof *pm); |
5776 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5777 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5778 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5779 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 | 5780 | |
0a2869d5 BP |
5781 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5782 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
918f2b82 | 5783 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { |
6fd6ed71 | 5784 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5785 | |
5786 | pm->table_id = otm->table_id; | |
82c22d34 | 5787 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5788 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5789 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5790 | ||
5791 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5792 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5793 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5794 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5795 | while (b.size > 0) { |
5796 | struct ofpbuf property; | |
5797 | enum ofperr error; | |
34a543e3 | 5798 | uint64_t type; |
82c22d34 | 5799 | |
c5562271 | 5800 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5801 | if (error) { |
5802 | return error; | |
5803 | } | |
5804 | ||
5805 | switch (type) { | |
5806 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5807 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5808 | break; |
5809 | ||
de7d3c07 SJ |
5810 | case OFPTMPT14_VACANCY: |
5811 | error = parse_table_mod_vacancy_property(&property, pm); | |
5812 | break; | |
5813 | ||
82c22d34 BP |
5814 | default: |
5815 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5816 | break; | |
5817 | } | |
5818 | ||
5819 | if (error) { | |
5820 | return error; | |
5821 | } | |
5822 | } | |
918f2b82 AZ |
5823 | } else { |
5824 | return OFPERR_OFPBRC_BAD_TYPE; | |
5825 | } | |
5826 | ||
5827 | return 0; | |
5828 | } | |
5829 | ||
82c22d34 BP |
5830 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5831 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5832 | * buffer owned by the caller. */ | |
918f2b82 | 5833 | struct ofpbuf * |
82c22d34 | 5834 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5835 | enum ofputil_protocol protocol) |
5836 | { | |
5837 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5838 | struct ofpbuf *b; | |
5839 | ||
5840 | switch (ofp_version) { | |
5841 | case OFP10_VERSION: { | |
5842 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5843 | "(\'-O OpenFlow11\')"); | |
5844 | break; | |
5845 | } | |
5846 | case OFP11_VERSION: | |
5847 | case OFP12_VERSION: | |
5848 | case OFP13_VERSION: { | |
5849 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5850 | |
918f2b82 AZ |
5851 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5852 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5853 | otm->table_id = tm->table_id; |
5854 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5855 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5856 | break; |
5857 | } | |
42dccab5 | 5858 | case OFP14_VERSION: |
b79d45a1 BP |
5859 | case OFP15_VERSION: |
5860 | case OFP16_VERSION: { | |
37ab26e8 BP |
5861 | struct ofp14_table_mod *otm; |
5862 | ||
5863 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5864 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5865 | otm->table_id = tm->table_id; |
5866 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5867 | tm->vacancy, ofp_version); |
82c22d34 BP |
5868 | |
5869 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5870 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 5871 | } |
de7d3c07 | 5872 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
5873 | struct ofp14_table_mod_prop_vacancy *otv; |
5874 | ||
5875 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
5876 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
5877 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5878 | } | |
c37c0382 | 5879 | break; |
37ab26e8 | 5880 | } |
2e3fa633 | 5881 | default: |
428b2edd | 5882 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5883 | } |
5884 | ||
5885 | return b; | |
5886 | } | |
2b07c8b1 | 5887 | \f |
6ea4776b JR |
5888 | /* ofputil_role_request */ |
5889 | ||
5890 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5891 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5892 | * OFPERR_* value. */ | |
5893 | enum ofperr | |
5894 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5895 | struct ofputil_role_request *rr) | |
5896 | { | |
0a2869d5 BP |
5897 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5898 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
f4f1ea7e BP |
5899 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5900 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5901 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5902 | |
f4f1ea7e BP |
5903 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5904 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5905 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5906 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5907 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5908 | } |
5909 | ||
f4f1ea7e | 5910 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5911 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5912 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5913 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5914 | rr->have_generation_id = false; |
5915 | rr->generation_id = 0; | |
5916 | } else { | |
5917 | rr->have_generation_id = true; | |
5918 | rr->generation_id = ntohll(orr->generation_id); | |
5919 | } | |
5920 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5921 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5922 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5923 | |
5924 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5925 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5926 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5927 | ||
5928 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5929 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5930 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5931 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5932 | } | |
6ea4776b | 5933 | |
f4f1ea7e BP |
5934 | rr->role = ntohl(nrr->role) + 1; |
5935 | rr->have_generation_id = false; | |
5936 | rr->generation_id = 0; | |
5937 | } else { | |
428b2edd | 5938 | OVS_NOT_REACHED(); |
6ea4776b JR |
5939 | } |
5940 | ||
6ea4776b JR |
5941 | return 0; |
5942 | } | |
5943 | ||
5944 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5945 | * buffer owned by the caller. */ | |
5946 | struct ofpbuf * | |
5947 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5948 | const struct ofputil_role_request *rr) |
6ea4776b | 5949 | { |
6ea4776b | 5950 | struct ofpbuf *buf; |
6ea4776b JR |
5951 | enum ofpraw raw; |
5952 | ||
f4f1ea7e | 5953 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5954 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5955 | struct ofp12_role_request *orr; |
6ea4776b | 5956 | |
f4f1ea7e BP |
5957 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5958 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5959 | |
147cc9d3 BP |
5960 | orr->role = htonl(rr->role); |
5961 | orr->generation_id = htonll(rr->have_generation_id | |
5962 | ? rr->generation_id | |
5963 | : UINT64_MAX); | |
f4f1ea7e BP |
5964 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5965 | struct nx_role_request *nrr; | |
5966 | ||
5967 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5968 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5969 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5970 | ||
5971 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5972 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5973 | nrr->role = htonl(rr->role - 1); | |
5974 | } else { | |
428b2edd | 5975 | OVS_NOT_REACHED(); |
6ea4776b | 5976 | } |
6ea4776b JR |
5977 | |
5978 | return buf; | |
5979 | } | |
5980 | \f | |
6751a4b4 BP |
5981 | /* Encodes "role status" message 'status' for sending in the given |
5982 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5983 | * otherwise a null pointer. */ | |
00467f73 AC |
5984 | struct ofpbuf * |
5985 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5986 | enum ofputil_protocol protocol) | |
5987 | { | |
00467f73 | 5988 | enum ofp_version version; |
00467f73 AC |
5989 | |
5990 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5991 | if (version >= OFP14_VERSION) { |
5992 | struct ofp14_role_status *rstatus; | |
5993 | struct ofpbuf *buf; | |
5994 | ||
5995 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5996 | 0); | |
5997 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5998 | rstatus->role = htonl(status->role); | |
5999 | rstatus->reason = status->reason; | |
6000 | rstatus->generation_id = htonll(status->generation_id); | |
6001 | ||
6002 | return buf; | |
6003 | } else { | |
6004 | return NULL; | |
6005 | } | |
00467f73 AC |
6006 | } |
6007 | ||
6008 | enum ofperr | |
6009 | ofputil_decode_role_status(const struct ofp_header *oh, | |
6010 | struct ofputil_role_status *rs) | |
6011 | { | |
0a2869d5 BP |
6012 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6013 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
00467f73 AC |
6014 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); |
6015 | ||
0a2869d5 | 6016 | const struct ofp14_role_status *r = b.msg; |
00467f73 AC |
6017 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
6018 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
6019 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
6020 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
6021 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6022 | } | |
6023 | ||
6024 | rs->role = ntohl(r->role); | |
6025 | rs->generation_id = ntohll(r->generation_id); | |
6026 | rs->reason = r->reason; | |
6027 | ||
6028 | return 0; | |
6029 | } | |
6030 | ||
3c35db62 NR |
6031 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
6032 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
6033 | struct ofpbuf * | |
6034 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
6035 | enum ofputil_protocol protocol) | |
6036 | { | |
6037 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
6038 | struct ofpbuf *inner; | |
6039 | ||
6040 | switch (rf->reason) { | |
6041 | case OFPRFR_GROUP_MOD: | |
6042 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
6043 | break; | |
6044 | ||
6045 | case OFPRFR_METER_MOD: | |
6046 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
6047 | break; | |
6048 | ||
d18cc1ee | 6049 | case OFPRFR_N_REASONS: |
3c35db62 NR |
6050 | default: |
6051 | OVS_NOT_REACHED(); | |
6052 | } | |
6053 | ||
6054 | struct ofp_header *inner_oh = inner->data; | |
6055 | inner_oh->xid = rf->xid; | |
6056 | inner_oh->length = htons(inner->size); | |
6057 | ||
6058 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
6059 | ofp_version, htonl(0), | |
6060 | inner->size); | |
6061 | ofpbuf_put(outer, inner->data, inner->size); | |
6062 | ofpbuf_delete(inner); | |
6063 | ||
6064 | return outer; | |
6065 | } | |
6066 | ||
6067 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
6068 | * form into '*rf' and returns 0, and the caller is later responsible for | |
6069 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
6070 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
6071 | enum ofperr | |
6072 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
6073 | struct ofputil_requestforward *rf) | |
6074 | { | |
0a2869d5 | 6075 | struct ofpbuf b = ofpbuf_const_initializer(outer, ntohs(outer->length)); |
3c35db62 NR |
6076 | |
6077 | /* Skip past outer message. */ | |
6078 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
6079 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
6080 | ||
6081 | /* Validate inner message. */ | |
6082 | if (b.size < sizeof(struct ofp_header)) { | |
6083 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6084 | } | |
6085 | const struct ofp_header *inner = b.data; | |
6086 | unsigned int inner_len = ntohs(inner->length); | |
6087 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
6088 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
6089 | } | |
6090 | if (inner->version != outer->version) { | |
6091 | return OFPERR_OFPBRC_BAD_VERSION; | |
6092 | } | |
6093 | ||
6094 | /* Parse inner message. */ | |
6095 | enum ofptype type; | |
0a2869d5 | 6096 | enum ofperr error = ofptype_decode(&type, inner); |
3c35db62 NR |
6097 | if (error) { |
6098 | return error; | |
6099 | } | |
6100 | ||
6101 | rf->xid = inner->xid; | |
6102 | if (type == OFPTYPE_GROUP_MOD) { | |
6103 | rf->reason = OFPRFR_GROUP_MOD; | |
6104 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
6105 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
6106 | if (error) { | |
6107 | free(rf->group_mod); | |
6108 | return error; | |
6109 | } | |
6110 | } else if (type == OFPTYPE_METER_MOD) { | |
6111 | rf->reason = OFPRFR_METER_MOD; | |
6112 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
6113 | ofpbuf_init(&rf->bands, 64); | |
6114 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
6115 | if (error) { | |
6116 | free(rf->meter_mod); | |
6117 | ofpbuf_uninit(&rf->bands); | |
6118 | return error; | |
6119 | } | |
6120 | } else { | |
6121 | return OFPERR_OFPBFC_MSG_UNSUP; | |
6122 | } | |
6123 | ||
6124 | return 0; | |
6125 | } | |
6126 | ||
6127 | /* Frees the content of 'rf', which should have been initialized through a | |
6128 | * successful call to ofputil_decode_requestforward(). */ | |
6129 | void | |
6130 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
6131 | { | |
6132 | if (!rf) { | |
6133 | return; | |
6134 | } | |
6135 | ||
6136 | switch (rf->reason) { | |
6137 | case OFPRFR_GROUP_MOD: | |
6138 | ofputil_uninit_group_mod(rf->group_mod); | |
6139 | free(rf->group_mod); | |
6140 | break; | |
6141 | ||
6142 | case OFPRFR_METER_MOD: | |
6143 | ofpbuf_uninit(&rf->bands); | |
6144 | free(rf->meter_mod); | |
d18cc1ee AA |
6145 | break; |
6146 | ||
6147 | case OFPRFR_N_REASONS: | |
6148 | OVS_NOT_REACHED(); | |
3c35db62 NR |
6149 | } |
6150 | } | |
6151 | ||
307975da SH |
6152 | /* Table stats. */ |
6153 | ||
3c1bb396 BP |
6154 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
6155 | * matched and a field that must be wildcarded. This function returns a bitmap | |
6156 | * that contains both kinds of fields. */ | |
6157 | static struct mf_bitmap | |
6158 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
6159 | { | |
6160 | struct mf_bitmap wc = features->match; | |
6161 | bitmap_not(wc.bm, MFF_N_IDS); | |
6162 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
6163 | return wc; | |
6164 | } | |
6165 | ||
6166 | struct ofp10_wc_map { | |
6167 | enum ofp10_flow_wildcards wc10; | |
6168 | enum mf_field_id mf; | |
6169 | }; | |
6170 | ||
6171 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
6172 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
6173 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
6174 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
6175 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
6176 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
6177 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
6178 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
6179 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
6180 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
6181 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
6182 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6183 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
6184 | }; | |
6185 | ||
6186 | static ovs_be32 | |
6187 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
6188 | { | |
6189 | const struct ofp10_wc_map *p; | |
6190 | uint32_t wc10 = 0; | |
6191 | ||
6192 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6193 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6194 | wc10 |= p->wc10; | |
6195 | } | |
6196 | } | |
6197 | return htonl(wc10); | |
6198 | } | |
6199 | ||
6200 | static struct mf_bitmap | |
6201 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
6202 | { | |
6203 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6204 | const struct ofp10_wc_map *p; | |
6205 | uint32_t wc10 = ntohl(wc10_); | |
6206 | ||
6207 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
6208 | if (wc10 & p->wc10) { | |
6209 | bitmap_set1(fields.bm, p->mf); | |
6210 | } | |
6211 | } | |
6212 | return fields; | |
6213 | } | |
6214 | ||
307975da | 6215 | static void |
3c1bb396 BP |
6216 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
6217 | const struct ofputil_table_features *features, | |
307975da SH |
6218 | struct ofpbuf *buf) |
6219 | { | |
3c1bb396 | 6220 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 6221 | struct ofp10_table_stats *out; |
307975da | 6222 | |
3bdc692b | 6223 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6224 | out->table_id = features->table_id; |
6225 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6226 | out->wildcards = mf_bitmap_to_of10(&wc); | |
6227 | out->max_entries = htonl(features->max_entries); | |
6228 | out->active_count = htonl(stats->active_count); | |
6229 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
6230 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
6231 | } | |
6232 | ||
6233 | struct ofp11_wc_map { | |
6234 | enum ofp11_flow_match_fields wc11; | |
6235 | enum mf_field_id mf; | |
6236 | }; | |
6237 | ||
6238 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
6239 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
6240 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
6241 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
6242 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
6243 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
6244 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
6245 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
6246 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
6247 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
6248 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
6249 | /* I don't know what OFPFMF11_TYPE means. */ | |
6250 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
6251 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
6252 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
6253 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
6254 | { OFPFMF11_METADATA, MFF_METADATA }, | |
6255 | }; | |
6256 | ||
6257 | static ovs_be32 | |
6258 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
6259 | { | |
6260 | const struct ofp11_wc_map *p; | |
6261 | uint32_t wc11 = 0; | |
6262 | ||
6263 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6264 | if (bitmap_is_set(fields->bm, p->mf)) { | |
6265 | wc11 |= p->wc11; | |
307975da SH |
6266 | } |
6267 | } | |
3c1bb396 | 6268 | return htonl(wc11); |
307975da SH |
6269 | } |
6270 | ||
3c1bb396 BP |
6271 | static struct mf_bitmap |
6272 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
6273 | { | |
6274 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
6275 | const struct ofp11_wc_map *p; | |
6276 | uint32_t wc11 = ntohl(wc11_); | |
6277 | ||
6278 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
6279 | if (wc11 & p->wc11) { | |
6280 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
6281 | } |
6282 | } | |
3c1bb396 | 6283 | return fields; |
307975da SH |
6284 | } |
6285 | ||
6286 | static void | |
3c1bb396 BP |
6287 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
6288 | const struct ofputil_table_features *features, | |
307975da SH |
6289 | struct ofpbuf *buf) |
6290 | { | |
3c1bb396 | 6291 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
6292 | struct ofp11_table_stats *out; |
6293 | ||
3bdc692b | 6294 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6295 | out->table_id = features->table_id; |
6296 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
6297 | out->wildcards = mf_bitmap_to_of11(&wc); | |
6298 | out->match = mf_bitmap_to_of11(&features->match); | |
6299 | out->instructions = ovsinst_bitmap_to_openflow( | |
6300 | features->nonmiss.instructions, OFP11_VERSION); | |
6301 | out->write_actions = ofpact_bitmap_to_openflow( | |
6302 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
6303 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6304 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
6305 | out->config = htonl(features->miss_config); | |
6306 | out->max_entries = htonl(features->max_entries); | |
6307 | out->active_count = htonl(stats->active_count); | |
6308 | out->lookup_count = htonll(stats->lookup_count); | |
6309 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
6310 | } |
6311 | ||
6240624b | 6312 | static void |
3c1bb396 BP |
6313 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
6314 | const struct ofputil_table_features *features, | |
6240624b BP |
6315 | struct ofpbuf *buf) |
6316 | { | |
08d1e234 | 6317 | struct ofp12_table_stats *out; |
6240624b | 6318 | |
08d1e234 | 6319 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
6320 | out->table_id = features->table_id; |
6321 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
6322 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
6323 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
6324 | OFP12_VERSION); |
6325 | out->write_actions = ofpact_bitmap_to_openflow( | |
6326 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
6327 | out->apply_actions = ofpact_bitmap_to_openflow( | |
6328 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 6329 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 6330 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 6331 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
6332 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
6333 | out->metadata_match = features->metadata_match; | |
6334 | out->metadata_write = features->metadata_write; | |
6335 | out->instructions = ovsinst_bitmap_to_openflow( | |
6336 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
6337 | out->config = ofputil_encode_table_config(features->miss_config, |
6338 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 6339 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 6340 | OFP12_VERSION); |
3c1bb396 BP |
6341 | out->max_entries = htonl(features->max_entries); |
6342 | out->active_count = htonl(stats->active_count); | |
6343 | out->lookup_count = htonll(stats->lookup_count); | |
6344 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
6345 | } |
6346 | ||
2e1ae200 | 6347 | static void |
3c1bb396 | 6348 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
6349 | struct ofpbuf *buf) |
6350 | { | |
6351 | struct ofp13_table_stats *out; | |
6352 | ||
3c1bb396 BP |
6353 | out = ofpbuf_put_zeros(buf, sizeof *out); |
6354 | out->table_id = stats->table_id; | |
6355 | out->active_count = htonl(stats->active_count); | |
6356 | out->lookup_count = htonll(stats->lookup_count); | |
6357 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
6358 | } |
6359 | ||
307975da | 6360 | struct ofpbuf * |
3c1bb396 | 6361 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 6362 | { |
3c1bb396 BP |
6363 | return ofpraw_alloc_stats_reply(request, 0); |
6364 | } | |
307975da | 6365 | |
3c1bb396 BP |
6366 | void |
6367 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
6368 | const struct ofputil_table_stats *stats, | |
6369 | const struct ofputil_table_features *features) | |
6370 | { | |
6fd6ed71 | 6371 | struct ofp_header *oh = reply->header; |
307975da | 6372 | |
3c1bb396 | 6373 | ovs_assert(stats->table_id == features->table_id); |
307975da | 6374 | |
3c1bb396 BP |
6375 | switch ((enum ofp_version) oh->version) { |
6376 | case OFP10_VERSION: | |
6377 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
6378 | break; | |
307975da | 6379 | |
3c1bb396 BP |
6380 | case OFP11_VERSION: |
6381 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
6382 | break; | |
307975da | 6383 | |
3c1bb396 BP |
6384 | case OFP12_VERSION: |
6385 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
6386 | break; | |
2e1ae200 | 6387 | |
3c1bb396 BP |
6388 | case OFP13_VERSION: |
6389 | case OFP14_VERSION: | |
6390 | case OFP15_VERSION: | |
b79d45a1 | 6391 | case OFP16_VERSION: |
3c1bb396 BP |
6392 | ofputil_put_ofp13_table_stats(stats, reply); |
6393 | break; | |
6394 | ||
6395 | default: | |
6396 | OVS_NOT_REACHED(); | |
307975da | 6397 | } |
3c1bb396 | 6398 | } |
307975da | 6399 | |
3c1bb396 BP |
6400 | static int |
6401 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
6402 | struct ofputil_table_stats *stats, | |
6403 | struct ofputil_table_features *features) | |
6404 | { | |
6405 | struct ofp10_table_stats *ots; | |
6406 | ||
6407 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6408 | if (!ots) { | |
6409 | return OFPERR_OFPBRC_BAD_LEN; | |
6410 | } | |
6411 | ||
6412 | features->table_id = ots->table_id; | |
6413 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6414 | features->max_entries = ntohl(ots->max_entries); | |
6415 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
6416 | ||
6417 | stats->table_id = ots->table_id; | |
6418 | stats->active_count = ntohl(ots->active_count); | |
6419 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
6420 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
6421 | ||
6422 | return 0; | |
6423 | } | |
6424 | ||
6425 | static int | |
6426 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
6427 | struct ofputil_table_stats *stats, | |
6428 | struct ofputil_table_features *features) | |
6429 | { | |
6430 | struct ofp11_table_stats *ots; | |
6431 | ||
6432 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6433 | if (!ots) { | |
6434 | return OFPERR_OFPBRC_BAD_LEN; | |
6435 | } | |
6436 | ||
6437 | features->table_id = ots->table_id; | |
6438 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6439 | features->max_entries = ntohl(ots->max_entries); | |
6440 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6441 | ots->instructions, OFP11_VERSION); | |
6442 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6443 | ots->write_actions, OFP11_VERSION); | |
6444 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6445 | ots->write_actions, OFP11_VERSION); | |
6446 | features->miss = features->nonmiss; | |
82c22d34 BP |
6447 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6448 | OFP11_VERSION); | |
3c1bb396 BP |
6449 | features->match = mf_bitmap_from_of11(ots->match); |
6450 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
6451 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
6452 | ||
6453 | stats->table_id = ots->table_id; | |
6454 | stats->active_count = ntohl(ots->active_count); | |
6455 | stats->lookup_count = ntohll(ots->lookup_count); | |
6456 | stats->matched_count = ntohll(ots->matched_count); | |
6457 | ||
6458 | return 0; | |
6459 | } | |
6460 | ||
6461 | static int | |
6462 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6463 | struct ofputil_table_stats *stats, | |
6464 | struct ofputil_table_features *features) | |
6465 | { | |
6466 | struct ofp12_table_stats *ots; | |
6467 | ||
6468 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6469 | if (!ots) { | |
6470 | return OFPERR_OFPBRC_BAD_LEN; | |
6471 | } | |
6472 | ||
6473 | features->table_id = ots->table_id; | |
6474 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6475 | features->metadata_match = ots->metadata_match; | |
6476 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6477 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6478 | OFP12_VERSION); | |
3c1bb396 BP |
6479 | features->max_entries = ntohl(ots->max_entries); |
6480 | ||
6481 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6482 | ots->instructions, OFP12_VERSION); | |
6483 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6484 | ots->write_actions, OFP12_VERSION); | |
6485 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6486 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6487 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6488 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6489 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6490 | ots->apply_setfields, OFP12_VERSION); |
6491 | features->miss = features->nonmiss; | |
6492 | ||
178742f9 BP |
6493 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6494 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6495 | OFP12_VERSION); | |
3c1bb396 BP |
6496 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6497 | ||
6498 | stats->table_id = ots->table_id; | |
6499 | stats->active_count = ntohl(ots->active_count); | |
6500 | stats->lookup_count = ntohll(ots->lookup_count); | |
6501 | stats->matched_count = ntohll(ots->matched_count); | |
6502 | ||
6503 | return 0; | |
6504 | } | |
6505 | ||
6506 | static int | |
6507 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6508 | struct ofputil_table_stats *stats, | |
6509 | struct ofputil_table_features *features) | |
6510 | { | |
6511 | struct ofp13_table_stats *ots; | |
6512 | ||
6513 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6514 | if (!ots) { | |
6515 | return OFPERR_OFPBRC_BAD_LEN; | |
6516 | } | |
6517 | ||
6518 | features->table_id = ots->table_id; | |
6519 | ||
6520 | stats->table_id = ots->table_id; | |
6521 | stats->active_count = ntohl(ots->active_count); | |
6522 | stats->lookup_count = ntohll(ots->lookup_count); | |
6523 | stats->matched_count = ntohll(ots->matched_count); | |
6524 | ||
6525 | return 0; | |
6526 | } | |
6527 | ||
6528 | int | |
6529 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6530 | struct ofputil_table_stats *stats, | |
6531 | struct ofputil_table_features *features) | |
6532 | { | |
6533 | const struct ofp_header *oh; | |
6534 | ||
6fd6ed71 | 6535 | if (!msg->header) { |
3c1bb396 BP |
6536 | ofpraw_pull_assert(msg); |
6537 | } | |
6fd6ed71 | 6538 | oh = msg->header; |
3c1bb396 | 6539 | |
6fd6ed71 | 6540 | if (!msg->size) { |
3c1bb396 BP |
6541 | return EOF; |
6542 | } | |
6543 | ||
6544 | memset(stats, 0, sizeof *stats); | |
6545 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6546 | features->supports_eviction = -1; |
6547 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6548 | |
6549 | switch ((enum ofp_version) oh->version) { | |
6550 | case OFP10_VERSION: | |
6551 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6552 | ||
6553 | case OFP11_VERSION: | |
6554 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6555 | ||
6556 | case OFP12_VERSION: | |
6557 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6558 | ||
6559 | case OFP13_VERSION: | |
6560 | case OFP14_VERSION: | |
6561 | case OFP15_VERSION: | |
b79d45a1 | 6562 | case OFP16_VERSION: |
3c1bb396 BP |
6563 | return ofputil_decode_ofp13_table_stats(msg, stats, features); |
6564 | ||
6565 | default: | |
6566 | OVS_NOT_REACHED(); | |
6567 | } | |
307975da SH |
6568 | } |
6569 | \f | |
2b07c8b1 BP |
6570 | /* ofputil_flow_monitor_request */ |
6571 | ||
6572 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6573 | * ofputil_flow_monitor_request in 'rq'. | |
6574 | * | |
6575 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6576 | * message. Calling this function multiple times for a single 'msg' iterates | |
6577 | * through the requests. The caller must initially leave 'msg''s layer | |
6578 | * pointers null and not modify them between calls. | |
6579 | * | |
6580 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6581 | * otherwise an OFPERR_* value. */ | |
6582 | int | |
6583 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6584 | struct ofpbuf *msg) | |
6585 | { | |
6586 | struct nx_flow_monitor_request *nfmr; | |
6587 | uint16_t flags; | |
6588 | ||
6fd6ed71 | 6589 | if (!msg->header) { |
982697a4 | 6590 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6591 | } |
6592 | ||
6fd6ed71 | 6593 | if (!msg->size) { |
2b07c8b1 BP |
6594 | return EOF; |
6595 | } | |
6596 | ||
6597 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6598 | if (!nfmr) { | |
437d0d22 | 6599 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6600 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6601 | return OFPERR_OFPBRC_BAD_LEN; |
6602 | } | |
6603 | ||
6604 | flags = ntohs(nfmr->flags); | |
6605 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6606 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6607 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6608 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6609 | flags); | |
04f9f286 | 6610 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6611 | } |
6612 | ||
6613 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6614 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6615 | } | |
6616 | ||
6617 | rq->id = ntohl(nfmr->id); | |
6618 | rq->flags = flags; | |
4e022ec0 | 6619 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6620 | rq->table_id = nfmr->table_id; |
6621 | ||
81a76618 | 6622 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
6623 | } |
6624 | ||
6625 | void | |
6626 | ofputil_append_flow_monitor_request( | |
6627 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6628 | { | |
6629 | struct nx_flow_monitor_request *nfmr; | |
6630 | size_t start_ofs; | |
6631 | int match_len; | |
6632 | ||
6fd6ed71 | 6633 | if (!msg->size) { |
982697a4 | 6634 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6635 | } |
6636 | ||
6fd6ed71 | 6637 | start_ofs = msg->size; |
2b07c8b1 | 6638 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6639 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6640 | |
6641 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6642 | nfmr->id = htonl(rq->id); | |
6643 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6644 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6645 | nfmr->match_len = htons(match_len); |
6646 | nfmr->table_id = rq->table_id; | |
6647 | } | |
6648 | ||
6649 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6650 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6651 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6652 | * |
6653 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6654 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6655 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6656 | * will point into the 'ofpacts' buffer. | |
6657 | * | |
6658 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6659 | * this function multiple times for a single 'msg' iterates through the | |
6660 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6661 | * not modify them between calls. | |
6662 | * | |
6663 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6664 | * otherwise an OFPERR_* value. */ | |
6665 | int | |
6666 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6667 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6668 | { | |
6669 | struct nx_flow_update_header *nfuh; | |
6670 | unsigned int length; | |
e3f8f887 | 6671 | struct ofp_header *oh; |
2b07c8b1 | 6672 | |
6fd6ed71 | 6673 | if (!msg->header) { |
982697a4 | 6674 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6675 | } |
6676 | ||
9abca1e5 | 6677 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6678 | if (!msg->size) { |
2b07c8b1 BP |
6679 | return EOF; |
6680 | } | |
6681 | ||
6fd6ed71 | 6682 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6683 | goto bad_len; |
6684 | } | |
6685 | ||
6fd6ed71 | 6686 | oh = msg->header; |
e3f8f887 | 6687 | |
6fd6ed71 | 6688 | nfuh = msg->data; |
2b07c8b1 BP |
6689 | update->event = ntohs(nfuh->event); |
6690 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6691 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6692 | goto bad_len; |
6693 | } | |
6694 | ||
6695 | if (update->event == NXFME_ABBREV) { | |
6696 | struct nx_flow_update_abbrev *nfua; | |
6697 | ||
6698 | if (length != sizeof *nfua) { | |
6699 | goto bad_len; | |
6700 | } | |
6701 | ||
6702 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6703 | update->xid = nfua->xid; | |
6704 | return 0; | |
6705 | } else if (update->event == NXFME_ADDED | |
6706 | || update->event == NXFME_DELETED | |
6707 | || update->event == NXFME_MODIFIED) { | |
6708 | struct nx_flow_update_full *nfuf; | |
6709 | unsigned int actions_len; | |
6710 | unsigned int match_len; | |
6711 | enum ofperr error; | |
6712 | ||
6713 | if (length < sizeof *nfuf) { | |
6714 | goto bad_len; | |
6715 | } | |
6716 | ||
6717 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6718 | match_len = ntohs(nfuf->match_len); | |
6719 | if (sizeof *nfuf + match_len > length) { | |
6720 | goto bad_len; | |
6721 | } | |
6722 | ||
6723 | update->reason = ntohs(nfuf->reason); | |
6724 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6725 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6726 | update->table_id = nfuf->table_id; | |
6727 | update->cookie = nfuf->cookie; | |
81a76618 | 6728 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6729 | |
81a76618 | 6730 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6731 | if (error) { |
6732 | return error; | |
6733 | } | |
6734 | ||
6735 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6736 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6737 | ofpacts); | |
2b07c8b1 BP |
6738 | if (error) { |
6739 | return error; | |
6740 | } | |
6741 | ||
6fd6ed71 PS |
6742 | update->ofpacts = ofpacts->data; |
6743 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6744 | return 0; |
6745 | } else { | |
6746 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6747 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6748 | ntohs(nfuh->event)); | |
15549878 | 6749 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6750 | } |
6751 | ||
6752 | bad_len: | |
437d0d22 | 6753 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6754 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6755 | return OFPERR_OFPBRC_BAD_LEN; |
6756 | } | |
6757 | ||
6758 | uint32_t | |
6759 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6760 | { | |
982697a4 BP |
6761 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6762 | ||
6763 | return ntohl(cancel->id); | |
2b07c8b1 | 6764 | } |
9e1fd49b | 6765 | |
2b07c8b1 BP |
6766 | struct ofpbuf * |
6767 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6768 | { | |
6769 | struct nx_flow_monitor_cancel *nfmc; | |
6770 | struct ofpbuf *msg; | |
6771 | ||
982697a4 BP |
6772 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6773 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6774 | nfmc->id = htonl(id); |
6775 | return msg; | |
6776 | } | |
6777 | ||
6778 | void | |
ca6ba700 | 6779 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6780 | { |
6781 | struct ofpbuf *msg; | |
6782 | ||
982697a4 BP |
6783 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6784 | htonl(0), 1024); | |
2b07c8b1 | 6785 | |
417e7e66 BW |
6786 | ovs_list_init(replies); |
6787 | ovs_list_push_back(replies, &msg->list_node); | |
2b07c8b1 BP |
6788 | } |
6789 | ||
6790 | void | |
6791 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6792 | struct ovs_list *replies) |
2b07c8b1 | 6793 | { |
e28ac5cf | 6794 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6795 | struct nx_flow_update_header *nfuh; |
6796 | struct ofpbuf *msg; | |
6797 | size_t start_ofs; | |
6798 | ||
417e7e66 | 6799 | msg = ofpbuf_from_list(ovs_list_back(replies)); |
6fd6ed71 | 6800 | start_ofs = msg->size; |
2b07c8b1 BP |
6801 | |
6802 | if (update->event == NXFME_ABBREV) { | |
6803 | struct nx_flow_update_abbrev *nfua; | |
6804 | ||
6805 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6806 | nfua->xid = update->xid; | |
6807 | } else { | |
6808 | struct nx_flow_update_full *nfuf; | |
6809 | int match_len; | |
6810 | ||
6811 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6812 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6813 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6814 | version); | |
2b07c8b1 BP |
6815 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6816 | nfuf->reason = htons(update->reason); | |
81a76618 | 6817 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6818 | nfuf->idle_timeout = htons(update->idle_timeout); |
6819 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6820 | nfuf->match_len = htons(match_len); | |
6821 | nfuf->table_id = update->table_id; | |
6822 | nfuf->cookie = update->cookie; | |
6823 | } | |
6824 | ||
6825 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6826 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6827 | nfuh->event = htons(update->event); |
6828 | ||
982697a4 | 6829 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6830 | } |
6831 | \f | |
c6a93eb7 | 6832 | struct ofpbuf * |
de0f3156 SH |
6833 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6834 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6835 | { |
de0f3156 | 6836 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6837 | struct ofpbuf *msg; |
6838 | size_t size; | |
6839 | ||
982697a4 | 6840 | size = po->ofpacts_len; |
c6a93eb7 BP |
6841 | if (po->buffer_id == UINT32_MAX) { |
6842 | size += po->packet_len; | |
6843 | } | |
6844 | ||
de0f3156 SH |
6845 | switch (ofp_version) { |
6846 | case OFP10_VERSION: { | |
31a9e63f | 6847 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6848 | size_t actions_ofs; |
6849 | ||
6850 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6851 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6852 | actions_ofs = msg->size; |
e3f8f887 JR |
6853 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6854 | ofp_version); | |
de0f3156 | 6855 | |
6fd6ed71 | 6856 | opo = msg->msg; |
de0f3156 | 6857 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6858 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6859 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6860 | break; |
6861 | } | |
f25d0cf3 | 6862 | |
de0f3156 | 6863 | case OFP11_VERSION: |
2e1ae200 | 6864 | case OFP12_VERSION: |
c37c0382 | 6865 | case OFP13_VERSION: |
42dccab5 | 6866 | case OFP14_VERSION: |
b79d45a1 BP |
6867 | case OFP15_VERSION: |
6868 | case OFP16_VERSION: { | |
7c1b1a0d SH |
6869 | struct ofp11_packet_out *opo; |
6870 | size_t len; | |
6871 | ||
6872 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6873 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6874 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6875 | ofp_version); | |
6fd6ed71 | 6876 | opo = msg->msg; |
7c1b1a0d SH |
6877 | opo->buffer_id = htonl(po->buffer_id); |
6878 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6879 | opo->actions_len = htons(len); | |
6880 | break; | |
6881 | } | |
6882 | ||
de0f3156 | 6883 | default: |
428b2edd | 6884 | OVS_NOT_REACHED(); |
de0f3156 | 6885 | } |
f25d0cf3 | 6886 | |
c6a93eb7 BP |
6887 | if (po->buffer_id == UINT32_MAX) { |
6888 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6889 | } | |
f25d0cf3 | 6890 | |
982697a4 | 6891 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6892 | |
6893 | return msg; | |
6894 | } | |
d1e2cf21 | 6895 | \f |
fa37b408 BP |
6896 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6897 | struct ofpbuf * | |
1a126c0c | 6898 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6899 | { |
1a126c0c | 6900 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6901 | htonl(0), 0); |
fa37b408 BP |
6902 | } |
6903 | ||
6904 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6905 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6906 | struct ofpbuf * | |
6907 | make_echo_reply(const struct ofp_header *rq) | |
6908 | { | |
0a2869d5 | 6909 | struct ofpbuf rq_buf = ofpbuf_const_initializer(rq, ntohs(rq->length)); |
982697a4 BP |
6910 | ofpraw_pull_assert(&rq_buf); |
6911 | ||
0a2869d5 BP |
6912 | struct ofpbuf *reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, |
6913 | rq, rq_buf.size); | |
6fd6ed71 | 6914 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); |
982697a4 | 6915 | return reply; |
fa37b408 BP |
6916 | } |
6917 | ||
efb80167 | 6918 | struct ofpbuf * |
a0ae0b6e | 6919 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6920 | { |
a0ae0b6e SH |
6921 | enum ofpraw type; |
6922 | ||
6923 | switch (ofp_version) { | |
b79d45a1 | 6924 | case OFP16_VERSION: |
42dccab5 | 6925 | case OFP15_VERSION: |
c37c0382 | 6926 | case OFP14_VERSION: |
2e1ae200 | 6927 | case OFP13_VERSION: |
a0ae0b6e SH |
6928 | case OFP12_VERSION: |
6929 | case OFP11_VERSION: | |
6930 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6931 | break; | |
6932 | ||
6933 | case OFP10_VERSION: | |
6934 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6935 | break; | |
6936 | ||
6937 | default: | |
428b2edd | 6938 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6939 | } |
6940 | ||
6941 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6942 | } |
6943 | ||
7257b535 | 6944 | const char * |
ad99e2ed | 6945 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6946 | { |
ad99e2ed BP |
6947 | switch (frag) { |
6948 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6949 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6950 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6951 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6952 | } |
6953 | ||
428b2edd | 6954 | OVS_NOT_REACHED(); |
7257b535 BP |
6955 | } |
6956 | ||
6957 | bool | |
ad99e2ed BP |
6958 | ofputil_frag_handling_from_string(const char *s, |
6959 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6960 | { |
6961 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6962 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6963 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6964 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6965 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6966 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6967 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6968 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6969 | } else { |
6970 | return false; | |
6971 | } | |
6972 | return true; | |
6973 | } | |
6974 | ||
7b7503ea BP |
6975 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6976 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6977 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6978 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6979 | * |
6980 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6981 | enum ofperr | |
4e022ec0 | 6982 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6983 | { |
6984 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6985 | ||
4e022ec0 AW |
6986 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6987 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6988 | return 0; |
4e022ec0 AW |
6989 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6990 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6991 | return 0; |
6992 | } else { | |
bc146369 | 6993 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6994 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6995 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6996 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6997 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6998 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6999 | } | |
7000 | } | |
7001 | ||
7002 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
7003 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
7004 | * | |
7005 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
7006 | ovs_be32 | |
4e022ec0 | 7007 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 7008 | { |
4e022ec0 AW |
7009 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
7010 | ? ofp_to_u16(ofp10_port) | |
7011 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
7012 | } |
7013 | ||
39dc9082 BP |
7014 | #define OFPUTIL_NAMED_PORTS \ |
7015 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
7016 | OFPUTIL_NAMED_PORT(TABLE) \ | |
7017 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
7018 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
7019 | OFPUTIL_NAMED_PORT(ALL) \ | |
7020 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
7021 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
7022 | OFPUTIL_NAMED_PORT(ANY) \ |
7023 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
7024 | |
7025 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
7026 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
7027 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
7028 | OFPUTIL_NAMED_PORT(NONE) |
7029 | ||
8010100b BP |
7030 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
7031 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
7032 | * (e.g. "LOCAL"). | |
c6100d92 | 7033 | * |
8010100b BP |
7034 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
7035 | * or name. The caller should issue an error message in this case, because | |
7036 | * this function usually does not. (This gives the caller an opportunity to | |
7037 | * look up the port name another way, e.g. by contacting the switch and listing | |
7038 | * the names of all its ports). | |
c6100d92 BP |
7039 | * |
7040 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
7041 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
7042 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 7043 | bool |
4e022ec0 | 7044 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 7045 | { |
5b23ff7e | 7046 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 7047 | |
5b23ff7e JR |
7048 | if (*s == '-') { |
7049 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
7050 | return false; | |
7051 | } | |
8010100b | 7052 | *portp = 0; |
c6100d92 | 7053 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
7054 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
7055 | /* Pass. */ | |
7056 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
7057 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
7058 | "be translated to %u when talking to an OF1.1 or " | |
7059 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 7060 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
7061 | char name[OFP_MAX_PORT_NAME_LEN]; |
7062 | ||
7063 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
7064 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
7065 | "for compatibility with OpenFlow 1.1 and later", | |
7066 | name, port32); | |
4e022ec0 | 7067 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 7068 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 7069 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 7070 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 7071 | return false; |
c6100d92 | 7072 | } else { |
4e022ec0 | 7073 | port32 -= OFPP11_OFFSET; |
c6100d92 | 7074 | } |
4e022ec0 AW |
7075 | |
7076 | *portp = u16_to_ofp(port32); | |
7077 | return true; | |
c6100d92 BP |
7078 | } else { |
7079 | struct pair { | |
7080 | const char *name; | |
4e022ec0 | 7081 | ofp_port_t value; |
c6100d92 BP |
7082 | }; |
7083 | static const struct pair pairs[] = { | |
39dc9082 | 7084 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 7085 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 7086 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
7087 | }; |
7088 | const struct pair *p; | |
39dc9082 | 7089 | |
c6100d92 BP |
7090 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
7091 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
7092 | *portp = p->value; |
7093 | return true; | |
c6100d92 | 7094 | } |
39dc9082 | 7095 | } |
8010100b | 7096 | return false; |
39dc9082 | 7097 | } |
39dc9082 BP |
7098 | } |
7099 | ||
7100 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
7101 | * Most ports' string representation is just the port number, but for special | |
7102 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
7103 | void | |
4e022ec0 | 7104 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 7105 | { |
28b11432 BP |
7106 | char name[OFP_MAX_PORT_NAME_LEN]; |
7107 | ||
7108 | ofputil_port_to_string(port, name, sizeof name); | |
7109 | ds_put_cstr(s, name); | |
7110 | } | |
39dc9082 | 7111 | |
28b11432 BP |
7112 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
7113 | * representation of OpenFlow port number 'port'. Most ports are represented | |
7114 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
7115 | * by name, e.g. "LOCAL". */ | |
7116 | void | |
7117 | ofputil_port_to_string(ofp_port_t port, | |
7118 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
7119 | { | |
39dc9082 | 7120 | switch (port) { |
28b11432 BP |
7121 | #define OFPUTIL_NAMED_PORT(NAME) \ |
7122 | case OFPP_##NAME: \ | |
7123 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
7124 | break; | |
39dc9082 BP |
7125 | OFPUTIL_NAMED_PORTS |
7126 | #undef OFPUTIL_NAMED_PORT | |
7127 | ||
7128 | default: | |
28b11432 BP |
7129 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
7130 | break; | |
39dc9082 | 7131 | } |
39dc9082 BP |
7132 | } |
7133 | ||
7395c052 NZ |
7134 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
7135 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
7136 | * (either "ANY" or "ALL"). | |
7137 | * | |
7138 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
7139 | * name. */ | |
7140 | bool | |
7141 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
7142 | { | |
7143 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 7144 | *group_idp = OFPG_ANY; |
7395c052 | 7145 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 7146 | *group_idp = OFPG_ALL; |
7395c052 NZ |
7147 | } else if (!str_to_uint(s, 10, group_idp)) { |
7148 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
7149 | "32-bit nonnegative integers or the keywords ANY or " | |
7150 | "ALL.)", s); | |
7151 | return false; | |
7152 | } | |
7153 | ||
7154 | return true; | |
7155 | } | |
7156 | ||
7157 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
7158 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 7159 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
7160 | void |
7161 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
7162 | { | |
7163 | char name[MAX_GROUP_NAME_LEN]; | |
7164 | ||
7165 | ofputil_group_to_string(group_id, name, sizeof name); | |
7166 | ds_put_cstr(s, name); | |
7167 | } | |
7168 | ||
7169 | ||
7170 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
7171 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 7172 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
7173 | * by name, e.g. "ALL". */ |
7174 | void | |
7175 | ofputil_group_to_string(uint32_t group_id, | |
7176 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
7177 | { | |
7178 | switch (group_id) { | |
30ef36c6 | 7179 | case OFPG_ALL: |
7395c052 NZ |
7180 | ovs_strlcpy(namebuf, "ALL", bufsize); |
7181 | break; | |
7182 | ||
30ef36c6 | 7183 | case OFPG_ANY: |
7395c052 NZ |
7184 | ovs_strlcpy(namebuf, "ANY", bufsize); |
7185 | break; | |
7186 | ||
7187 | default: | |
7188 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
7189 | break; | |
7190 | } | |
7191 | } | |
7192 | ||
2be393ed JP |
7193 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
7194 | * 'ofp_version', tries to pull the first element from the array. If | |
7195 | * successful, initializes '*pp' with an abstract representation of the | |
7196 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
7197 | * On an error, returns a positive OFPERR_* value. */ | |
7198 | int | |
2e3fa633 | 7199 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
7200 | struct ofputil_phy_port *pp) |
7201 | { | |
8c3cc785 BP |
7202 | memset(pp, 0, sizeof *pp); |
7203 | ||
2e3fa633 SH |
7204 | switch (ofp_version) { |
7205 | case OFP10_VERSION: { | |
2be393ed JP |
7206 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
7207 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
7208 | } |
7209 | case OFP11_VERSION: | |
2e1ae200 JR |
7210 | case OFP12_VERSION: |
7211 | case OFP13_VERSION: { | |
2be393ed JP |
7212 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
7213 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
7214 | } | |
c37c0382 | 7215 | case OFP14_VERSION: |
42dccab5 | 7216 | case OFP15_VERSION: |
b79d45a1 | 7217 | case OFP16_VERSION: |
6fd6ed71 | 7218 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 7219 | default: |
428b2edd | 7220 | OVS_NOT_REACHED(); |
2e3fa633 | 7221 | } |
2be393ed JP |
7222 | } |
7223 | ||
3cbd9931 | 7224 | static void |
81a76618 | 7225 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
7226 | { |
7227 | enum { | |
7228 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
7229 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
7230 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 7231 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
7232 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
7233 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 7234 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
7235 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
7236 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
7237 | } may_match; |
7238 | ||
7239 | struct flow_wildcards wc; | |
7240 | ||
7241 | /* Figure out what fields may be matched. */ | |
81a76618 | 7242 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 7243 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
7244 | if (match->flow.nw_proto == IPPROTO_TCP || |
7245 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 7246 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 7247 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
7248 | may_match |= MAY_TP_ADDR; |
7249 | } | |
81a76618 | 7250 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 7251 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 7252 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
7253 | match->flow.nw_proto == IPPROTO_UDP || |
7254 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 7255 | may_match |= MAY_TP_ADDR; |
81a76618 | 7256 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 7257 | may_match |= MAY_TP_ADDR; |
81a76618 | 7258 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 7259 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 7260 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
7261 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
7262 | } | |
7263 | } | |
8087f5ff MM |
7264 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
7265 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 7266 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
7267 | } else if (eth_type_mpls(match->flow.dl_type)) { |
7268 | may_match = MAY_MPLS; | |
1c0b7503 | 7269 | } else { |
b459a924 BP |
7270 | may_match = 0; |
7271 | } | |
7272 | ||
7273 | /* Clear the fields that may not be matched. */ | |
81a76618 | 7274 | wc = match->wc; |
b459a924 | 7275 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 7276 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
7277 | } |
7278 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 7279 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
7280 | } |
7281 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 7282 | wc.masks.nw_proto = 0; |
b459a924 | 7283 | } |
9e44d715 | 7284 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
7285 | wc.masks.nw_tos = 0; |
7286 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
7287 | } |
7288 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 7289 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
7290 | } |
7291 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 7292 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 7293 | } |
d78477ec | 7294 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
7295 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
7296 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
7297 | } |
7298 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 7299 | wc.masks.nd_target = in6addr_any; |
b459a924 | 7300 | } |
b02475c5 | 7301 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 7302 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 7303 | } |
b459a924 BP |
7304 | |
7305 | /* Log any changes. */ | |
81a76618 | 7306 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 7307 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 7308 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 7309 | |
81a76618 BP |
7310 | match->wc = wc; |
7311 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
7312 | |
7313 | if (log) { | |
81a76618 | 7314 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
7315 | VLOG_INFO("normalization changed ofp_match, details:"); |
7316 | VLOG_INFO(" pre: %s", pre); | |
7317 | VLOG_INFO("post: %s", post); | |
7318 | free(pre); | |
7319 | free(post); | |
7320 | } | |
fa37b408 | 7321 | } |
3f09c339 | 7322 | } |
26c112c2 | 7323 | |
81a76618 | 7324 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
7325 | * |
7326 | * 1. If the type of level N is known, then only the valid fields for that | |
7327 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 7328 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 7329 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 7330 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7331 | * IPv4 flow. |
7332 | * | |
7333 | * 2. If the type of level N is not known (or not understood by Open | |
7334 | * vSwitch), then no fields at all for that level may be specified. For | |
7335 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 7336 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
7337 | * SCTP flow. |
7338 | * | |
81a76618 | 7339 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
7340 | * message. */ |
7341 | void | |
81a76618 | 7342 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 7343 | { |
81a76618 | 7344 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
7345 | } |
7346 | ||
81a76618 BP |
7347 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
7348 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
7349 | * sense for use on flows received from elsewhere (so that a bug in the program |
7350 | * that sent them can be reported and corrected). */ | |
7351 | void | |
81a76618 | 7352 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 7353 | { |
81a76618 | 7354 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
7355 | } |
7356 | ||
0ff22822 BP |
7357 | /* Parses a key or a key-value pair from '*stringp'. |
7358 | * | |
7359 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
7360 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
7361 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
7362 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
7363 | * terminators. Returns true. | |
7364 | * | |
7365 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
7366 | * NULL and returns false. */ | |
7367 | bool | |
7368 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
7369 | { | |
7370 | char *pos, *key, *value; | |
7371 | size_t key_len; | |
7372 | ||
7373 | pos = *stringp; | |
7374 | pos += strspn(pos, ", \t\r\n"); | |
7375 | if (*pos == '\0') { | |
7376 | *keyp = *valuep = NULL; | |
7377 | return false; | |
7378 | } | |
7379 | ||
7380 | key = pos; | |
7381 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
7382 | if (key[key_len] == ':' || key[key_len] == '=') { | |
7383 | /* The value can be separated by a colon. */ | |
7384 | size_t value_len; | |
7385 | ||
7386 | value = key + key_len + 1; | |
7387 | value_len = strcspn(value, ", \t\r\n"); | |
7388 | pos = value + value_len + (value[value_len] != '\0'); | |
7389 | value[value_len] = '\0'; | |
7390 | } else if (key[key_len] == '(') { | |
7391 | /* The value can be surrounded by balanced parentheses. The outermost | |
7392 | * set of parentheses is removed. */ | |
7393 | int level = 1; | |
7394 | size_t value_len; | |
7395 | ||
7396 | value = key + key_len + 1; | |
7397 | for (value_len = 0; level > 0; value_len++) { | |
7398 | switch (value[value_len]) { | |
7399 | case '\0': | |
33cadc50 BP |
7400 | level = 0; |
7401 | break; | |
0ff22822 BP |
7402 | |
7403 | case '(': | |
7404 | level++; | |
7405 | break; | |
7406 | ||
7407 | case ')': | |
7408 | level--; | |
7409 | break; | |
7410 | } | |
7411 | } | |
7412 | value[value_len - 1] = '\0'; | |
7413 | pos = value + value_len; | |
7414 | } else { | |
7415 | /* There might be no value at all. */ | |
7416 | value = key + key_len; /* Will become the empty string below. */ | |
7417 | pos = key + key_len + (key[key_len] != '\0'); | |
7418 | } | |
7419 | key[key_len] = '\0'; | |
7420 | ||
7421 | *stringp = pos; | |
7422 | *keyp = key; | |
7423 | *valuep = value; | |
7424 | return true; | |
7425 | } | |
f8e4867e SH |
7426 | |
7427 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 7428 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
7429 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
7430 | struct ofpbuf * | |
4e022ec0 | 7431 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
7432 | { |
7433 | struct ofpbuf *request; | |
7434 | ||
7435 | switch (ofp_version) { | |
7436 | case OFP10_VERSION: { | |
7437 | struct ofp10_port_stats_request *req; | |
7438 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
7439 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 7440 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
7441 | break; |
7442 | } | |
7443 | case OFP11_VERSION: | |
2e1ae200 | 7444 | case OFP12_VERSION: |
c37c0382 | 7445 | case OFP13_VERSION: |
42dccab5 | 7446 | case OFP14_VERSION: |
b79d45a1 BP |
7447 | case OFP15_VERSION: |
7448 | case OFP16_VERSION: { | |
f8e4867e SH |
7449 | struct ofp11_port_stats_request *req; |
7450 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
7451 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7452 | req->port_no = ofputil_port_to_ofp11(port); | |
7453 | break; | |
7454 | } | |
7455 | default: | |
428b2edd | 7456 | OVS_NOT_REACHED(); |
f8e4867e SH |
7457 | } |
7458 | ||
7459 | return request; | |
7460 | } | |
7461 | ||
7462 | static void | |
7463 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7464 | struct ofp10_port_stats *ps10) | |
7465 | { | |
4e022ec0 | 7466 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7467 | memset(ps10->pad, 0, sizeof ps10->pad); |
7468 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7469 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7470 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7471 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7472 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7473 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7474 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7475 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7476 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7477 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7478 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7479 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7480 | } | |
7481 | ||
7482 | static void | |
7483 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7484 | struct ofp11_port_stats *ps11) | |
7485 | { | |
7486 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7487 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7488 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7489 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7490 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7491 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7492 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7493 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7494 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7495 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7496 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7497 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7498 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7499 | ps11->collisions = htonll(ops->stats.collisions); | |
7500 | } | |
7501 | ||
2e1ae200 JR |
7502 | static void |
7503 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7504 | struct ofp13_port_stats *ps13) | |
7505 | { | |
7506 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7507 | ps13->duration_sec = htonl(ops->duration_sec); |
7508 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7509 | } |
7510 | ||
5469537b BP |
7511 | static void |
7512 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7513 | struct ovs_list *replies) |
5469537b BP |
7514 | { |
7515 | struct ofp14_port_stats_prop_ethernet *eth; | |
7516 | struct ofp14_port_stats *ps14; | |
7517 | struct ofpbuf *reply; | |
7518 | ||
7519 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7520 | ||
7521 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7522 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7523 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7524 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7525 | ps14->duration_sec = htonl(ops->duration_sec); | |
7526 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7527 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7528 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7529 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7530 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7531 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7532 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7533 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7534 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7535 | ||
303721ee | 7536 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7537 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7538 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7539 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7540 | eth->collisions = htonll(ops->stats.collisions); | |
7541 | } | |
2e1ae200 | 7542 | |
ad4c35fe | 7543 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7544 | void |
ca6ba700 | 7545 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7546 | const struct ofputil_port_stats *ops) |
7547 | { | |
e28ac5cf | 7548 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7549 | case OFP13_VERSION: { |
7550 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7551 | ofputil_port_stats_to_ofp13(ops, reply); | |
7552 | break; | |
7553 | } | |
f8e4867e SH |
7554 | case OFP12_VERSION: |
7555 | case OFP11_VERSION: { | |
7556 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7557 | ofputil_port_stats_to_ofp11(ops, reply); | |
7558 | break; | |
7559 | } | |
7560 | ||
7561 | case OFP10_VERSION: { | |
7562 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7563 | ofputil_port_stats_to_ofp10(ops, reply); | |
7564 | break; | |
7565 | } | |
7566 | ||
c37c0382 | 7567 | case OFP14_VERSION: |
42dccab5 | 7568 | case OFP15_VERSION: |
b79d45a1 | 7569 | case OFP16_VERSION: |
5469537b | 7570 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7571 | break; |
7572 | ||
f8e4867e | 7573 | default: |
428b2edd | 7574 | OVS_NOT_REACHED(); |
f8e4867e SH |
7575 | } |
7576 | } | |
7577 | ||
7578 | static enum ofperr | |
7579 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7580 | const struct ofp10_port_stats *ps10) | |
7581 | { | |
7582 | memset(ops, 0, sizeof *ops); | |
7583 | ||
4e022ec0 | 7584 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7585 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7586 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7587 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7588 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7589 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7590 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7591 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7592 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7593 | ops->stats.rx_frame_errors = | |
7594 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7595 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7596 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7597 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7598 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7599 | |
7600 | return 0; | |
7601 | } | |
7602 | ||
7603 | static enum ofperr | |
7604 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7605 | const struct ofp11_port_stats *ps11) | |
7606 | { | |
7607 | enum ofperr error; | |
7608 | ||
7609 | memset(ops, 0, sizeof *ops); | |
7610 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7611 | if (error) { | |
7612 | return error; | |
7613 | } | |
7614 | ||
7615 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7616 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7617 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7618 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7619 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7620 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7621 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7622 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7623 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7624 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7625 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7626 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7627 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7628 | |
7629 | return 0; | |
7630 | } | |
7631 | ||
2e1ae200 JR |
7632 | static enum ofperr |
7633 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7634 | const struct ofp13_port_stats *ps13) | |
7635 | { | |
65e0be10 | 7636 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7637 | if (!error) { |
65e0be10 BP |
7638 | ops->duration_sec = ntohl(ps13->duration_sec); |
7639 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7640 | } |
2e1ae200 JR |
7641 | return error; |
7642 | } | |
7643 | ||
5469537b BP |
7644 | static enum ofperr |
7645 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7646 | struct ofputil_port_stats *ops) | |
be0c30df | 7647 | { |
6fd6ed71 | 7648 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7649 | |
6fd6ed71 | 7650 | if (payload->size != sizeof *eth) { |
5469537b BP |
7651 | return OFPERR_OFPBPC_BAD_LEN; |
7652 | } | |
7653 | ||
7654 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7655 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7656 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7657 | ops->stats.collisions = ntohll(eth->collisions); | |
7658 | ||
7659 | return 0; | |
7660 | } | |
7661 | ||
7662 | static enum ofperr | |
7663 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7664 | struct ofpbuf *msg) | |
7665 | { | |
0a2869d5 | 7666 | const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14); |
5469537b BP |
7667 | if (!ps14) { |
7668 | return OFPERR_OFPBRC_BAD_LEN; | |
7669 | } | |
7670 | ||
0a2869d5 | 7671 | size_t len = ntohs(ps14->length); |
6fd6ed71 | 7672 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7673 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7674 | } |
5469537b | 7675 | len -= sizeof *ps14; |
5469537b | 7676 | |
0a2869d5 | 7677 | enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); |
5469537b BP |
7678 | if (error) { |
7679 | return error; | |
7680 | } | |
7681 | ||
7682 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7683 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7684 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7685 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7686 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7687 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7688 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7689 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7690 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7691 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7692 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7693 | ops->stats.rx_over_errors = UINT64_MAX; | |
7694 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7695 | ops->stats.collisions = UINT64_MAX; | |
7696 | ||
0a2869d5 BP |
7697 | struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len), |
7698 | len); | |
6fd6ed71 | 7699 | while (properties.size > 0) { |
5469537b BP |
7700 | struct ofpbuf payload; |
7701 | enum ofperr error; | |
34a543e3 | 7702 | uint64_t type; |
5469537b | 7703 | |
c5562271 | 7704 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
7705 | if (error) { |
7706 | return error; | |
7707 | } | |
7708 | ||
7709 | switch (type) { | |
7710 | case OFPPSPT14_ETHERNET: | |
7711 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7712 | break; | |
7713 | ||
7714 | default: | |
34a543e3 | 7715 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
7716 | break; |
7717 | } | |
7718 | ||
7719 | if (error) { | |
7720 | return error; | |
7721 | } | |
7722 | } | |
7723 | ||
7724 | return 0; | |
be0c30df | 7725 | } |
2e1ae200 | 7726 | |
f8e4867e SH |
7727 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7728 | * message 'oh'. */ | |
7729 | size_t | |
7730 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7731 | { | |
0a2869d5 | 7732 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
f8e4867e | 7733 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
7734 | |
7735 | for (size_t n = 0; ; n++) { | |
7736 | struct ofputil_port_stats ps; | |
7737 | if (ofputil_decode_port_stats(&ps, &b)) { | |
7738 | return n; | |
7739 | } | |
5469537b | 7740 | } |
f8e4867e SH |
7741 | } |
7742 | ||
7743 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7744 | * ofputil_port_stats in 'ps'. | |
7745 | * | |
7746 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7747 | * message. Calling this function multiple times for a single 'msg' iterates | |
7748 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7749 | * null and not modify them between calls. | |
7750 | * | |
7751 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7752 | * otherwise a positive errno value. */ | |
7753 | int | |
7754 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7755 | { | |
7756 | enum ofperr error; | |
7757 | enum ofpraw raw; | |
7758 | ||
6fd6ed71 | 7759 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7760 | : ofpraw_pull(&raw, msg)); |
7761 | if (error) { | |
7762 | return error; | |
7763 | } | |
7764 | ||
6fd6ed71 | 7765 | if (!msg->size) { |
f8e4867e | 7766 | return EOF; |
5469537b BP |
7767 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7768 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7769 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7770 | const struct ofp13_port_stats *ps13; | |
7771 | ||
7772 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7773 | if (!ps13) { | |
7774 | goto bad_len; | |
7775 | } | |
7776 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7777 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7778 | const struct ofp11_port_stats *ps11; | |
7779 | ||
7780 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7781 | if (!ps11) { | |
2e1ae200 | 7782 | goto bad_len; |
f8e4867e SH |
7783 | } |
7784 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7785 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7786 | const struct ofp10_port_stats *ps10; | |
7787 | ||
7788 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7789 | if (!ps10) { | |
2e1ae200 | 7790 | goto bad_len; |
f8e4867e SH |
7791 | } |
7792 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7793 | } else { | |
428b2edd | 7794 | OVS_NOT_REACHED(); |
f8e4867e SH |
7795 | } |
7796 | ||
2e1ae200 | 7797 | bad_len: |
437d0d22 | 7798 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7799 | "bytes at end", msg->size); |
2e1ae200 | 7800 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7801 | } |
7802 | ||
7803 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7804 | * port number and stores the latter in '*ofp10_port'. | |
7805 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7806 | enum ofperr | |
7807 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7808 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7809 | { |
7810 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 7811 | case OFP16_VERSION: |
42dccab5 | 7812 | case OFP15_VERSION: |
5469537b | 7813 | case OFP14_VERSION: |
2e1ae200 | 7814 | case OFP13_VERSION: |
f8e4867e SH |
7815 | case OFP12_VERSION: |
7816 | case OFP11_VERSION: { | |
7817 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7818 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7819 | } | |
7820 | ||
7821 | case OFP10_VERSION: { | |
7822 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7823 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7824 | return 0; |
7825 | } | |
7826 | ||
7827 | default: | |
428b2edd | 7828 | OVS_NOT_REACHED(); |
f8e4867e SH |
7829 | } |
7830 | } | |
64626975 | 7831 | |
7395c052 NZ |
7832 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7833 | void | |
ca6ba700 | 7834 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7835 | { |
5f03c983 | 7836 | struct ofputil_bucket *bucket; |
7395c052 | 7837 | |
5f03c983 | 7838 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7839 | free(bucket->ofpacts); |
7840 | free(bucket); | |
7841 | } | |
7842 | } | |
7843 | ||
103b4866 SH |
7844 | /* Clones 'bucket' and its ofpacts data */ |
7845 | static struct ofputil_bucket * | |
7846 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7847 | { | |
7848 | struct ofputil_bucket *new; | |
7849 | ||
7850 | new = xmemdup(bucket, sizeof *bucket); | |
7851 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7852 | ||
7853 | return new; | |
7854 | } | |
7855 | ||
7856 | /* Clones each of the buckets in the list 'src' appending them | |
7857 | * in turn to 'dest' which should be an initialised list. | |
7858 | * An exception is that if the pointer value of a bucket in 'src' | |
7859 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7860 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7861 | * be cloned and appended to 'dest'. */ | |
7862 | void | |
ca6ba700 | 7863 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7864 | const struct ofputil_bucket *skip) |
7865 | { | |
7866 | struct ofputil_bucket *bucket; | |
7867 | ||
7868 | LIST_FOR_EACH (bucket, list_node, src) { | |
7869 | struct ofputil_bucket *new_bucket; | |
7870 | ||
7871 | if (bucket == skip) { | |
7872 | continue; | |
7873 | } | |
7874 | ||
7875 | new_bucket = ofputil_bucket_clone_data(bucket); | |
417e7e66 | 7876 | ovs_list_push_back(dest, &new_bucket->list_node); |
103b4866 SH |
7877 | } |
7878 | } | |
7879 | ||
7880 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7881 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7882 | struct ofputil_bucket * | |
ca6ba700 | 7883 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7884 | { |
7885 | struct ofputil_bucket *bucket; | |
7886 | ||
7887 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7888 | return NULL; | |
7889 | } | |
7890 | ||
7891 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7892 | if (bucket->bucket_id == bucket_id) { | |
7893 | return bucket; | |
7894 | } | |
7895 | } | |
7896 | ||
7897 | return NULL; | |
7898 | } | |
7899 | ||
7900 | /* Returns true if more than one bucket in the list 'buckets' | |
7901 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7902 | bool |
ca6ba700 | 7903 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7904 | { |
7905 | struct ofputil_bucket *i, *j; | |
7906 | ||
7907 | LIST_FOR_EACH (i, list_node, buckets) { | |
7908 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7909 | if (i == j) { | |
7910 | break; | |
7911 | } | |
7912 | if (i->bucket_id == j->bucket_id) { | |
7913 | return true; | |
7914 | } | |
7915 | } | |
7916 | } | |
7917 | ||
7918 | return false; | |
7919 | } | |
7920 | ||
103b4866 SH |
7921 | /* Returns the bucket at the front of the list 'buckets'. |
7922 | * Undefined if 'buckets is empty. */ | |
7923 | struct ofputil_bucket * | |
ca6ba700 | 7924 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7925 | { |
7926 | static struct ofputil_bucket *bucket; | |
7927 | ||
417e7e66 | 7928 | ASSIGN_CONTAINER(bucket, ovs_list_front(buckets), list_node); |
103b4866 SH |
7929 | |
7930 | return bucket; | |
7931 | } | |
7932 | ||
7933 | /* Returns the bucket at the back of the list 'buckets'. | |
7934 | * Undefined if 'buckets is empty. */ | |
7935 | struct ofputil_bucket * | |
ca6ba700 | 7936 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7937 | { |
7938 | static struct ofputil_bucket *bucket; | |
7939 | ||
417e7e66 | 7940 | ASSIGN_CONTAINER(bucket, ovs_list_back(buckets), list_node); |
103b4866 SH |
7941 | |
7942 | return bucket; | |
7943 | } | |
7944 | ||
7395c052 NZ |
7945 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7946 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7947 | * for all groups.) | |
7948 | * | |
7949 | * Group statistics include packet and byte counts for each group. */ | |
7950 | struct ofpbuf * | |
7951 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7952 | uint32_t group_id) | |
7953 | { | |
7954 | struct ofpbuf *request; | |
7955 | ||
7956 | switch (ofp_version) { | |
7957 | case OFP10_VERSION: | |
7958 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7959 | "(\'-O OpenFlow11\')"); | |
7960 | case OFP11_VERSION: | |
7961 | case OFP12_VERSION: | |
c37c0382 | 7962 | case OFP13_VERSION: |
42dccab5 | 7963 | case OFP14_VERSION: |
b79d45a1 BP |
7964 | case OFP15_VERSION: |
7965 | case OFP16_VERSION: { | |
7395c052 NZ |
7966 | struct ofp11_group_stats_request *req; |
7967 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7968 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7969 | req->group_id = htonl(group_id); | |
7970 | break; | |
7971 | } | |
7972 | default: | |
428b2edd | 7973 | OVS_NOT_REACHED(); |
7395c052 NZ |
7974 | } |
7975 | ||
7976 | return request; | |
7977 | } | |
7978 | ||
bc65c25a SH |
7979 | void |
7980 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7981 | { | |
7982 | ofputil_bucket_list_destroy(&gd->buckets); | |
7983 | free(&gd->props.fields); | |
7984 | } | |
7985 | ||
19187a71 BP |
7986 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7987 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7988 | * requested. */ | |
7989 | uint32_t | |
7990 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7991 | { | |
0a2869d5 BP |
7992 | struct ofpbuf request = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
7993 | enum ofpraw raw = ofpraw_pull_assert(&request); | |
19187a71 BP |
7994 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { |
7995 | return OFPG_ALL; | |
7996 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7997 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7998 | return ntohl(*group_id); | |
7999 | } else { | |
8000 | OVS_NOT_REACHED(); | |
8001 | } | |
8002 | } | |
8003 | ||
7395c052 | 8004 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
8005 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
8006 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
8007 | * groups). | |
7395c052 NZ |
8008 | * |
8009 | * Group descriptions include the bucket and action configuration for each | |
8010 | * group. */ | |
8011 | struct ofpbuf * | |
19187a71 BP |
8012 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
8013 | uint32_t group_id) | |
7395c052 NZ |
8014 | { |
8015 | struct ofpbuf *request; | |
8016 | ||
8017 | switch (ofp_version) { | |
8018 | case OFP10_VERSION: | |
8019 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
8020 | "(\'-O OpenFlow11\')"); | |
8021 | case OFP11_VERSION: | |
8022 | case OFP12_VERSION: | |
c37c0382 AC |
8023 | case OFP13_VERSION: |
8024 | case OFP14_VERSION: | |
19187a71 BP |
8025 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
8026 | ofp_version, 0); | |
8027 | break; | |
b79d45a1 BP |
8028 | case OFP15_VERSION: |
8029 | case OFP16_VERSION: { | |
d4d3f33e | 8030 | struct ofp15_group_desc_request *req; |
19187a71 BP |
8031 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
8032 | ofp_version, 0); | |
d4d3f33e MT |
8033 | req = ofpbuf_put_zeros(request, sizeof *req); |
8034 | req->group_id = htonl(group_id); | |
7395c052 | 8035 | break; |
d4d3f33e | 8036 | } |
7395c052 | 8037 | default: |
428b2edd | 8038 | OVS_NOT_REACHED(); |
7395c052 NZ |
8039 | } |
8040 | ||
8041 | return request; | |
8042 | } | |
8043 | ||
dcbe78ad | 8044 | static void |
63759e71 AZ |
8045 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
8046 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8047 | { |
7395c052 NZ |
8048 | int i; |
8049 | ||
dcbe78ad AZ |
8050 | for (i = 0; i < gs->n_buckets; i++) { |
8051 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
8052 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 8053 | } |
7395c052 NZ |
8054 | } |
8055 | ||
8056 | static void | |
dcbe78ad | 8057 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
8058 | struct ofp11_group_stats *gs11, size_t length, |
8059 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 8060 | { |
63759e71 AZ |
8061 | memset(gs11, 0, sizeof *gs11); |
8062 | gs11->length = htons(length); | |
8063 | gs11->group_id = htonl(gs->group_id); | |
8064 | gs11->ref_count = htonl(gs->ref_count); | |
8065 | gs11->packet_count = htonll(gs->packet_count); | |
8066 | gs11->byte_count = htonll(gs->byte_count); | |
8067 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 8068 | } |
7395c052 | 8069 | |
dcbe78ad AZ |
8070 | static void |
8071 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
8072 | struct ofp13_group_stats *gs13, size_t length, |
8073 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 8074 | { |
63759e71 | 8075 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
8076 | gs13->duration_sec = htonl(gs->duration_sec); |
8077 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 8078 | |
7395c052 NZ |
8079 | } |
8080 | ||
dcbe78ad | 8081 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
8082 | * replies already begun in 'replies' and appends it to the list. 'replies' |
8083 | * must have originally been initialized with ofpmp_init(). */ | |
8084 | void | |
ca6ba700 | 8085 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 8086 | const struct ofputil_group_stats *gs) |
7395c052 | 8087 | { |
63759e71 AZ |
8088 | size_t bucket_counter_size; |
8089 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 8090 | size_t length; |
7395c052 | 8091 | |
63759e71 AZ |
8092 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
8093 | ||
e28ac5cf | 8094 | switch (ofpmp_version(replies)) { |
7395c052 | 8095 | case OFP11_VERSION: |
dcbe78ad | 8096 | case OFP12_VERSION:{ |
63759e71 | 8097 | struct ofp11_group_stats *gs11; |
dcbe78ad | 8098 | |
63759e71 AZ |
8099 | length = sizeof *gs11 + bucket_counter_size; |
8100 | gs11 = ofpmp_append(replies, length); | |
8101 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
8102 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
8103 | break; |
8104 | } | |
7395c052 NZ |
8105 | |
8106 | case OFP13_VERSION: | |
42dccab5 | 8107 | case OFP14_VERSION: |
b79d45a1 BP |
8108 | case OFP15_VERSION: |
8109 | case OFP16_VERSION: { | |
63759e71 | 8110 | struct ofp13_group_stats *gs13; |
7395c052 | 8111 | |
63759e71 AZ |
8112 | length = sizeof *gs13 + bucket_counter_size; |
8113 | gs13 = ofpmp_append(replies, length); | |
8114 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
8115 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
8116 | break; |
8117 | } | |
c37c0382 | 8118 | |
7395c052 NZ |
8119 | case OFP10_VERSION: |
8120 | default: | |
428b2edd | 8121 | OVS_NOT_REACHED(); |
7395c052 NZ |
8122 | } |
8123 | } | |
7395c052 NZ |
8124 | /* Returns an OpenFlow group features request for OpenFlow version |
8125 | * 'ofp_version'. */ | |
8126 | struct ofpbuf * | |
8127 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
8128 | { | |
8129 | struct ofpbuf *request = NULL; | |
8130 | ||
8131 | switch (ofp_version) { | |
8132 | case OFP10_VERSION: | |
8133 | case OFP11_VERSION: | |
8134 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
8135 | "(\'-O OpenFlow12\')"); | |
8136 | case OFP12_VERSION: | |
c37c0382 AC |
8137 | case OFP13_VERSION: |
8138 | case OFP14_VERSION: | |
42dccab5 | 8139 | case OFP15_VERSION: |
b79d45a1 | 8140 | case OFP16_VERSION: |
7395c052 | 8141 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 8142 | ofp_version, 0); |
7395c052 | 8143 | break; |
7395c052 | 8144 | default: |
428b2edd | 8145 | OVS_NOT_REACHED(); |
7395c052 NZ |
8146 | } |
8147 | ||
8148 | return request; | |
8149 | } | |
8150 | ||
8151 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
8152 | * group features request 'request'. */ | |
8153 | struct ofpbuf * | |
8154 | ofputil_encode_group_features_reply( | |
8155 | const struct ofputil_group_features *features, | |
8156 | const struct ofp_header *request) | |
8157 | { | |
8158 | struct ofp12_group_features_stats *ogf; | |
8159 | struct ofpbuf *reply; | |
08d1e234 | 8160 | int i; |
7395c052 NZ |
8161 | |
8162 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
8163 | request->version, request->xid, 0); | |
8164 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
8165 | ogf->types = htonl(features->types); | |
8166 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
8167 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8168 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
8169 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
8170 | request->version); | |
8171 | } | |
7395c052 NZ |
8172 | |
8173 | return reply; | |
8174 | } | |
8175 | ||
8176 | /* Decodes group features reply 'oh' into 'features'. */ | |
8177 | void | |
8178 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
8179 | struct ofputil_group_features *features) | |
8180 | { | |
8181 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 8182 | int i; |
7395c052 NZ |
8183 | |
8184 | features->types = ntohl(ogf->types); | |
8185 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
8186 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
8187 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
8188 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
8189 | ogf->actions[i], oh->version); | |
8190 | } | |
7395c052 NZ |
8191 | } |
8192 | ||
8193 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
8194 | * group ID and stores the latter in '*group_id'. | |
8195 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8196 | enum ofperr | |
8197 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
8198 | uint32_t *group_id) | |
8199 | { | |
8200 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
8201 | *group_id = ntohl(gsr11->group_id); | |
8202 | return 0; | |
8203 | } | |
8204 | ||
8205 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
8206 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
8207 | * caller to eventually free. | |
7395c052 NZ |
8208 | * |
8209 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
8210 | * Calling this function multiple times for a single 'msg' iterates through the | |
8211 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
8212 | * not modify them between calls. | |
8213 | * | |
8214 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8215 | * otherwise a positive errno value. */ | |
8216 | int | |
8217 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
8218 | struct ofputil_group_stats *gs) | |
8219 | { | |
8220 | struct ofp11_bucket_counter *obc; | |
8221 | struct ofp11_group_stats *ogs11; | |
8222 | enum ofpraw raw; | |
8223 | enum ofperr error; | |
8224 | size_t base_len; | |
8225 | size_t length; | |
8226 | size_t i; | |
8227 | ||
646b2a9c | 8228 | gs->bucket_stats = NULL; |
6fd6ed71 | 8229 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
8230 | : ofpraw_pull(&raw, msg)); |
8231 | if (error) { | |
8232 | return error; | |
8233 | } | |
8234 | ||
6fd6ed71 | 8235 | if (!msg->size) { |
7395c052 NZ |
8236 | return EOF; |
8237 | } | |
8238 | ||
8239 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
8240 | base_len = sizeof *ogs11; | |
8241 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
8242 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
8243 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
8244 | struct ofp13_group_stats *ogs13; | |
8245 | ||
8246 | base_len = sizeof *ogs13; | |
8247 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
8248 | if (ogs13) { | |
8249 | ogs11 = &ogs13->gs; | |
8250 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
8251 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
8252 | } else { | |
8253 | ogs11 = NULL; | |
8254 | } | |
8255 | } else { | |
428b2edd | 8256 | OVS_NOT_REACHED(); |
7395c052 NZ |
8257 | } |
8258 | ||
8259 | if (!ogs11) { | |
437d0d22 | 8260 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8261 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8262 | return OFPERR_OFPBRC_BAD_LEN; |
8263 | } | |
8264 | length = ntohs(ogs11->length); | |
8265 | if (length < sizeof base_len) { | |
34582733 | 8266 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
8267 | ofpraw_get_name(raw), length); |
8268 | return OFPERR_OFPBRC_BAD_LEN; | |
8269 | } | |
8270 | ||
8271 | gs->group_id = ntohl(ogs11->group_id); | |
8272 | gs->ref_count = ntohl(ogs11->ref_count); | |
8273 | gs->packet_count = ntohll(ogs11->packet_count); | |
8274 | gs->byte_count = ntohll(ogs11->byte_count); | |
8275 | ||
8276 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
8277 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
8278 | if (!obc) { | |
437d0d22 | 8279 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 8280 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
8281 | return OFPERR_OFPBRC_BAD_LEN; |
8282 | } | |
8283 | ||
646b2a9c | 8284 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
8285 | for (i = 0; i < gs->n_buckets; i++) { |
8286 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
8287 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
8288 | } | |
8289 | ||
8290 | return 0; | |
8291 | } | |
8292 | ||
5097fee5 SH |
8293 | static void |
8294 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
8295 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8296 | { | |
8297 | struct ofp11_bucket *ob; | |
8298 | size_t start; | |
8299 | ||
6fd6ed71 | 8300 | start = openflow->size; |
5097fee5 SH |
8301 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8302 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
8303 | openflow, ofp_version); | |
8304 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8305 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
8306 | ob->weight = htons(bucket->weight); |
8307 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
8308 | ob->watch_group = htonl(bucket->watch_group); | |
8309 | } | |
8310 | ||
18ac06d3 SH |
8311 | static void |
8312 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
8313 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
8314 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
8315 | { | |
8316 | struct ofp15_bucket *ob; | |
8317 | size_t start, actions_start, actions_len; | |
8318 | ||
6fd6ed71 | 8319 | start = openflow->size; |
18ac06d3 SH |
8320 | ofpbuf_put_zeros(openflow, sizeof *ob); |
8321 | ||
6fd6ed71 | 8322 | actions_start = openflow->size; |
18ac06d3 SH |
8323 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
8324 | openflow, ofp_version); | |
6fd6ed71 | 8325 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
8326 | |
8327 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 8328 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
8329 | } |
8330 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
8331 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
8332 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
8333 | } |
8334 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 8335 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
8336 | } |
8337 | ||
8338 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 8339 | ob->len = htons(openflow->size - start); |
79870963 | 8340 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
8341 | ob->bucket_id = htonl(bucket_id); |
8342 | } | |
8343 | ||
53eb84a5 SH |
8344 | static void |
8345 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
8346 | const struct ofputil_group_props *gp, | |
8347 | struct ofpbuf *openflow) | |
8348 | { | |
8349 | struct ntr_group_prop_selection_method *prop; | |
8350 | size_t start; | |
8351 | ||
8352 | start = openflow->size; | |
8353 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
8354 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
8355 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
8356 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
8357 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
8358 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
8359 | strcpy(prop->selection_method, gp->selection_method); | |
8360 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 8361 | ofpprop_end(openflow, start); |
53eb84a5 SH |
8362 | } |
8363 | ||
5be50252 SH |
8364 | static void |
8365 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8366 | const struct ovs_list *buckets, |
ca6ba700 | 8367 | struct ovs_list *replies, |
5be50252 | 8368 | enum ofp_version version) |
7395c052 | 8369 | { |
417e7e66 | 8370 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
7395c052 NZ |
8371 | struct ofp11_group_desc_stats *ogds; |
8372 | struct ofputil_bucket *bucket; | |
8373 | size_t start_ogds; | |
8374 | ||
6fd6ed71 | 8375 | start_ogds = reply->size; |
7395c052 NZ |
8376 | ofpbuf_put_zeros(reply, sizeof *ogds); |
8377 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 8378 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
8379 | } |
8380 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 8381 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
8382 | ogds->type = gds->type; |
8383 | ogds->group_id = htonl(gds->group_id); | |
8384 | ||
8385 | ofpmp_postappend(replies, start_ogds); | |
8386 | } | |
8387 | ||
18ac06d3 SH |
8388 | static void |
8389 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8390 | const struct ovs_list *buckets, |
ca6ba700 | 8391 | struct ovs_list *replies, |
18ac06d3 SH |
8392 | enum ofp_version version) |
8393 | { | |
417e7e66 | 8394 | struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies)); |
18ac06d3 SH |
8395 | struct ofp15_group_desc_stats *ogds; |
8396 | struct ofputil_bucket *bucket; | |
8397 | size_t start_ogds, start_buckets; | |
8398 | ||
6fd6ed71 | 8399 | start_ogds = reply->size; |
18ac06d3 | 8400 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 8401 | start_buckets = reply->size; |
18ac06d3 SH |
8402 | LIST_FOR_EACH (bucket, list_node, buckets) { |
8403 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
8404 | gds->type, reply, version); | |
8405 | } | |
8406 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
8407 | ogds->type = gds->type; |
8408 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 8409 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 8410 | |
53eb84a5 SH |
8411 | /* Add group properties */ |
8412 | if (gds->props.selection_method[0]) { | |
8413 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
8414 | reply); | |
8415 | } | |
ef5774e3 | 8416 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); |
3986cae6 | 8417 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 8418 | |
18ac06d3 SH |
8419 | ofpmp_postappend(replies, start_ogds); |
8420 | } | |
8421 | ||
5be50252 SH |
8422 | /* Appends a group stats reply that contains the data in 'gds' to those already |
8423 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
8424 | * initialized with ofpmp_init(). */ | |
8425 | void | |
8426 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 8427 | const struct ovs_list *buckets, |
ca6ba700 | 8428 | struct ovs_list *replies) |
5be50252 SH |
8429 | { |
8430 | enum ofp_version version = ofpmp_version(replies); | |
8431 | ||
8432 | switch (version) | |
8433 | { | |
8434 | case OFP11_VERSION: | |
8435 | case OFP12_VERSION: | |
8436 | case OFP13_VERSION: | |
8437 | case OFP14_VERSION: | |
5be50252 SH |
8438 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
8439 | break; | |
8440 | ||
18ac06d3 | 8441 | case OFP15_VERSION: |
b79d45a1 | 8442 | case OFP16_VERSION: |
18ac06d3 SH |
8443 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); |
8444 | break; | |
8445 | ||
5be50252 SH |
8446 | case OFP10_VERSION: |
8447 | default: | |
8448 | OVS_NOT_REACHED(); | |
8449 | } | |
8450 | } | |
8451 | ||
7395c052 | 8452 | static enum ofperr |
655ed3ae | 8453 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 8454 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
8455 | { |
8456 | struct ofp11_bucket *ob; | |
18ac06d3 | 8457 | uint32_t bucket_id = 0; |
7395c052 | 8458 | |
417e7e66 | 8459 | ovs_list_init(buckets); |
7395c052 NZ |
8460 | while (buckets_length > 0) { |
8461 | struct ofputil_bucket *bucket; | |
8462 | struct ofpbuf ofpacts; | |
8463 | enum ofperr error; | |
8464 | size_t ob_len; | |
8465 | ||
8466 | ob = (buckets_length >= sizeof *ob | |
8467 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8468 | : NULL); | |
8469 | if (!ob) { | |
34582733 | 8470 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8471 | buckets_length); |
e27e4ce9 | 8472 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8473 | } |
8474 | ||
8475 | ob_len = ntohs(ob->len); | |
8476 | if (ob_len < sizeof *ob) { | |
8477 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8478 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8479 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8480 | } else if (ob_len > buckets_length) { | |
8481 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8482 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8483 | ob_len, buckets_length); |
8484 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8485 | } | |
8486 | buckets_length -= ob_len; | |
8487 | ||
8488 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8489 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8490 | version, &ofpacts); | |
7395c052 NZ |
8491 | if (error) { |
8492 | ofpbuf_uninit(&ofpacts); | |
8493 | ofputil_bucket_list_destroy(buckets); | |
8494 | return error; | |
8495 | } | |
8496 | ||
8497 | bucket = xzalloc(sizeof *bucket); | |
8498 | bucket->weight = ntohs(ob->weight); | |
8499 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8500 | if (error) { | |
8501 | ofpbuf_uninit(&ofpacts); | |
8502 | ofputil_bucket_list_destroy(buckets); | |
8503 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8504 | } | |
8505 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8506 | bucket->bucket_id = bucket_id++; |
8507 | ||
7395c052 | 8508 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8509 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8510 | ovs_list_push_back(buckets, &bucket->list_node); |
7395c052 NZ |
8511 | } |
8512 | ||
8513 | return 0; | |
8514 | } | |
8515 | ||
18ac06d3 SH |
8516 | static enum ofperr |
8517 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8518 | enum ofp_version version, uint8_t group_type, |
8519 | struct ovs_list *buckets) | |
18ac06d3 SH |
8520 | { |
8521 | struct ofp15_bucket *ob; | |
8522 | ||
417e7e66 | 8523 | ovs_list_init(buckets); |
18ac06d3 SH |
8524 | while (buckets_length > 0) { |
8525 | struct ofputil_bucket *bucket = NULL; | |
8526 | struct ofpbuf ofpacts; | |
8527 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
18ac06d3 SH |
8528 | size_t ob_len, actions_len, properties_len; |
8529 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8530 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8531 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8532 | |
8533 | ofpbuf_init(&ofpacts, 0); | |
8534 | ||
8535 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8536 | if (!ob) { | |
8537 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8538 | " leftover bytes", buckets_length); | |
8539 | goto err; | |
8540 | } | |
8541 | ||
8542 | ob_len = ntohs(ob->len); | |
79870963 | 8543 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8544 | |
8545 | if (ob_len < sizeof *ob) { | |
8546 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8547 | "%"PRIuSIZE" is not valid", ob_len); | |
8548 | goto err; | |
8549 | } else if (ob_len > buckets_length) { | |
8550 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8551 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8552 | PRIuSIZE, ob_len, buckets_length); | |
8553 | goto err; | |
8554 | } else if (actions_len > ob_len - sizeof *ob) { | |
8555 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8556 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8557 | "data size %"PRIuSIZE, actions_len, | |
8558 | ob_len - sizeof *ob); | |
8559 | goto err; | |
8560 | } | |
8561 | buckets_length -= ob_len; | |
8562 | ||
8563 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8564 | &ofpacts); | |
8565 | if (err) { | |
8566 | goto err; | |
8567 | } | |
8568 | ||
8569 | properties_len = ob_len - sizeof *ob - actions_len; | |
0a2869d5 BP |
8570 | struct ofpbuf properties = ofpbuf_const_initializer( |
8571 | ofpbuf_pull(msg, properties_len), properties_len); | |
6fd6ed71 | 8572 | while (properties.size > 0) { |
18ac06d3 | 8573 | struct ofpbuf payload; |
34a543e3 | 8574 | uint64_t type; |
18ac06d3 | 8575 | |
c5562271 | 8576 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
8577 | if (err) { |
8578 | goto err; | |
8579 | } | |
8580 | ||
8581 | switch (type) { | |
8582 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 8583 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
8584 | break; |
8585 | ||
8586 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 8587 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
8588 | break; |
8589 | ||
8590 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 8591 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
8592 | break; |
8593 | ||
8594 | default: | |
34a543e3 | 8595 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
8596 | break; |
8597 | } | |
8598 | ||
8599 | if (err) { | |
8600 | goto err; | |
8601 | } | |
8602 | } | |
8603 | ||
8604 | bucket = xzalloc(sizeof *bucket); | |
8605 | ||
8606 | bucket->weight = ntohs(weight); | |
8607 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8608 | if (err) { | |
8609 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8610 | goto err; | |
8611 | } | |
8612 | bucket->watch_group = ntohl(watch_group); | |
8613 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8614 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8615 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8616 | bucket->bucket_id); | |
8617 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8618 | goto err; | |
8619 | } | |
8620 | ||
8621 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8622 | bucket->ofpacts_len = ofpacts.size; |
417e7e66 | 8623 | ovs_list_push_back(buckets, &bucket->list_node); |
18ac06d3 SH |
8624 | |
8625 | continue; | |
8626 | ||
8627 | err: | |
8628 | free(bucket); | |
8629 | ofpbuf_uninit(&ofpacts); | |
8630 | ofputil_bucket_list_destroy(buckets); | |
8631 | return err; | |
8632 | } | |
8633 | ||
8634 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8635 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8636 | ofputil_bucket_list_destroy(buckets); | |
8637 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8638 | } | |
8639 | ||
8640 | return 0; | |
8641 | } | |
8642 | ||
bc65c25a SH |
8643 | static void |
8644 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8645 | { | |
8646 | memset(gp, 0, sizeof *gp); | |
8647 | } | |
8648 | ||
8649 | static enum ofperr | |
8650 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8651 | enum ofp11_group_type group_type, | |
8652 | enum ofp15_group_mod_command group_cmd, | |
8653 | struct ofputil_group_props *gp) | |
8654 | { | |
8655 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8656 | size_t fields_len, method_len; | |
8657 | enum ofperr error; | |
8658 | ||
8659 | switch (group_type) { | |
8660 | case OFPGT11_SELECT: | |
8661 | break; | |
8662 | case OFPGT11_ALL: | |
8663 | case OFPGT11_INDIRECT: | |
8664 | case OFPGT11_FF: | |
c5562271 BP |
8665 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8666 | "only allowed for select groups"); | |
bc65c25a SH |
8667 | return OFPERR_OFPBPC_BAD_VALUE; |
8668 | default: | |
8669 | OVS_NOT_REACHED(); | |
8670 | } | |
8671 | ||
8672 | switch (group_cmd) { | |
8673 | case OFPGC15_ADD: | |
8674 | case OFPGC15_MODIFY: | |
8675 | break; | |
8676 | case OFPGC15_DELETE: | |
8677 | case OFPGC15_INSERT_BUCKET: | |
8678 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
8679 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8680 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
8681 | return OFPERR_OFPBPC_BAD_VALUE; |
8682 | default: | |
8683 | OVS_NOT_REACHED(); | |
8684 | } | |
8685 | ||
8686 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
8687 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
8688 | "length %u is not valid", payload->size); | |
bc65c25a SH |
8689 | return OFPERR_OFPBPC_BAD_LEN; |
8690 | } | |
8691 | ||
8692 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8693 | ||
8694 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
8695 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8696 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
8697 | return OFPERR_OFPBPC_BAD_VALUE; |
8698 | } | |
8699 | ||
0c4b9393 | 8700 | if (strcmp("hash", prop->selection_method)) { |
c5562271 BP |
8701 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8702 | "ntr selection method '%s' is not supported", | |
8703 | prop->selection_method); | |
0c4b9393 SH |
8704 | return OFPERR_OFPBPC_BAD_VALUE; |
8705 | } | |
bc65c25a SH |
8706 | |
8707 | strcpy(gp->selection_method, prop->selection_method); | |
8708 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8709 | ||
8710 | if (!method_len && gp->selection_method_param) { | |
c5562271 BP |
8711 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8712 | "non-zero but selection method is empty"); | |
bc65c25a SH |
8713 | return OFPERR_OFPBPC_BAD_VALUE; |
8714 | } | |
8715 | ||
8716 | ofpbuf_pull(payload, sizeof *prop); | |
8717 | ||
8718 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8719 | if (!method_len && fields_len) { | |
c5562271 BP |
8720 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8721 | "zero but fields are provided"); | |
bc65c25a SH |
8722 | return OFPERR_OFPBPC_BAD_VALUE; |
8723 | } | |
8724 | ||
8725 | error = oxm_pull_field_array(payload->data, fields_len, | |
8726 | &gp->fields); | |
8727 | if (error) { | |
c5562271 BP |
8728 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8729 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
8730 | return error; |
8731 | } | |
8732 | ||
8733 | return 0; | |
8734 | } | |
8735 | ||
bc65c25a SH |
8736 | static enum ofperr |
8737 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8738 | enum ofp11_group_type group_type, | |
8739 | enum ofp15_group_mod_command group_cmd, | |
8740 | struct ofputil_group_props *gp, | |
8741 | size_t properties_len) | |
8742 | { | |
0a2869d5 BP |
8743 | struct ofpbuf properties = ofpbuf_const_initializer( |
8744 | ofpbuf_pull(msg, properties_len), properties_len); | |
bc65c25a SH |
8745 | while (properties.size > 0) { |
8746 | struct ofpbuf payload; | |
8747 | enum ofperr error; | |
34a543e3 | 8748 | uint64_t type; |
bc65c25a | 8749 | |
c5562271 | 8750 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
8751 | if (error) { |
8752 | return error; | |
8753 | } | |
8754 | ||
8755 | switch (type) { | |
34a543e3 BP |
8756 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
8757 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
8758 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
8759 | group_cmd, gp); | |
bc65c25a SH |
8760 | break; |
8761 | ||
8762 | default: | |
34a543e3 | 8763 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
8764 | break; |
8765 | } | |
8766 | ||
8767 | if (error) { | |
8768 | return error; | |
8769 | } | |
8770 | } | |
8771 | ||
8772 | return 0; | |
8773 | } | |
8774 | ||
975910f2 SH |
8775 | static int |
8776 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8777 | struct ofpbuf *msg, | |
8778 | enum ofp_version version) | |
7395c052 NZ |
8779 | { |
8780 | struct ofp11_group_desc_stats *ogds; | |
8781 | size_t length; | |
8782 | ||
6fd6ed71 | 8783 | if (!msg->header) { |
7395c052 NZ |
8784 | ofpraw_pull_assert(msg); |
8785 | } | |
8786 | ||
6fd6ed71 | 8787 | if (!msg->size) { |
7395c052 NZ |
8788 | return EOF; |
8789 | } | |
8790 | ||
8791 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8792 | if (!ogds) { | |
437d0d22 | 8793 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8794 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8795 | return OFPERR_OFPBRC_BAD_LEN; |
8796 | } | |
8797 | gd->type = ogds->type; | |
8798 | gd->group_id = ntohl(ogds->group_id); | |
8799 | ||
8800 | length = ntohs(ogds->length); | |
6fd6ed71 | 8801 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8802 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8803 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8804 | return OFPERR_OFPBRC_BAD_LEN; |
8805 | } | |
8806 | ||
655ed3ae SH |
8807 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8808 | &gd->buckets); | |
7395c052 NZ |
8809 | } |
8810 | ||
18ac06d3 SH |
8811 | static int |
8812 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8813 | struct ofpbuf *msg, | |
8814 | enum ofp_version version) | |
8815 | { | |
8816 | struct ofp15_group_desc_stats *ogds; | |
8817 | uint16_t length, bucket_list_len; | |
bc65c25a | 8818 | int error; |
18ac06d3 | 8819 | |
6fd6ed71 | 8820 | if (!msg->header) { |
18ac06d3 SH |
8821 | ofpraw_pull_assert(msg); |
8822 | } | |
8823 | ||
6fd6ed71 | 8824 | if (!msg->size) { |
18ac06d3 SH |
8825 | return EOF; |
8826 | } | |
8827 | ||
8828 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8829 | if (!ogds) { | |
8830 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8831 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8832 | return OFPERR_OFPBRC_BAD_LEN; |
8833 | } | |
8834 | gd->type = ogds->type; | |
8835 | gd->group_id = ntohl(ogds->group_id); | |
8836 | ||
8837 | length = ntohs(ogds->length); | |
6fd6ed71 | 8838 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8839 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8840 | "length %u", length); | |
8841 | return OFPERR_OFPBRC_BAD_LEN; | |
8842 | } | |
8843 | ||
8844 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8845 | if (length < bucket_list_len + sizeof *ogds) { | |
8846 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8847 | "bucket list length %u", bucket_list_len); | |
8848 | return OFPERR_OFPBRC_BAD_LEN; | |
8849 | } | |
64e8c446 | 8850 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8851 | &gd->buckets); |
8852 | if (error) { | |
8853 | return error; | |
8854 | } | |
18ac06d3 | 8855 | |
bc65c25a SH |
8856 | /* By definition group desc messages don't have a group mod command. |
8857 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8858 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8859 | * against group mod messages with other commands supplying | |
8860 | * a NTR selection method group experimenter property. | |
8861 | * Such properties are valid for group desc replies so | |
8862 | * claim that the group mod command is OFPGC15_ADD to | |
8863 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8864 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8865 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8866 | } |
8867 | ||
975910f2 SH |
8868 | /* Converts a group description reply in 'msg' into an abstract |
8869 | * ofputil_group_desc in 'gd'. | |
8870 | * | |
8871 | * Multiple group description replies can be packed into a single OpenFlow | |
8872 | * message. Calling this function multiple times for a single 'msg' iterates | |
8873 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8874 | * null and not modify them between calls. | |
8875 | * | |
8876 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8877 | * otherwise a positive errno value. */ | |
8878 | int | |
8879 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8880 | struct ofpbuf *msg, enum ofp_version version) | |
8881 | { | |
bc65c25a SH |
8882 | ofputil_init_group_properties(&gd->props); |
8883 | ||
975910f2 SH |
8884 | switch (version) |
8885 | { | |
8886 | case OFP11_VERSION: | |
8887 | case OFP12_VERSION: | |
8888 | case OFP13_VERSION: | |
8889 | case OFP14_VERSION: | |
975910f2 SH |
8890 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8891 | ||
18ac06d3 | 8892 | case OFP15_VERSION: |
b79d45a1 | 8893 | case OFP16_VERSION: |
18ac06d3 SH |
8894 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); |
8895 | ||
975910f2 SH |
8896 | case OFP10_VERSION: |
8897 | default: | |
8898 | OVS_NOT_REACHED(); | |
8899 | } | |
8900 | } | |
8901 | ||
bc65c25a SH |
8902 | void |
8903 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8904 | { | |
8905 | ofputil_bucket_list_destroy(&gm->buckets); | |
8906 | } | |
8907 | ||
4498bea5 SH |
8908 | static struct ofpbuf * |
8909 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8910 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8911 | { |
8912 | struct ofpbuf *b; | |
8913 | struct ofp11_group_mod *ogm; | |
8914 | size_t start_ogm; | |
7395c052 | 8915 | struct ofputil_bucket *bucket; |
7395c052 | 8916 | |
4498bea5 | 8917 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8918 | start_ogm = b->size; |
4498bea5 SH |
8919 | ofpbuf_put_zeros(b, sizeof *ogm); |
8920 | ||
8921 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8922 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8923 | } | |
8924 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8925 | ogm->command = htons(gm->command); | |
8926 | ogm->type = gm->type; | |
8927 | ogm->group_id = htonl(gm->group_id); | |
8928 | ||
8929 | return b; | |
8930 | } | |
8931 | ||
18ac06d3 SH |
8932 | static struct ofpbuf * |
8933 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8934 | const struct ofputil_group_mod *gm) | |
8935 | { | |
8936 | struct ofpbuf *b; | |
8937 | struct ofp15_group_mod *ogm; | |
8938 | size_t start_ogm; | |
8939 | struct ofputil_bucket *bucket; | |
8940 | struct id_pool *bucket_ids = NULL; | |
8941 | ||
8942 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8943 | start_ogm = b->size; |
18ac06d3 SH |
8944 | ofpbuf_put_zeros(b, sizeof *ogm); |
8945 | ||
8946 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8947 | uint32_t bucket_id; | |
8948 | ||
8949 | /* Generate a bucket id if none was supplied */ | |
8950 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8951 | if (!bucket_ids) { | |
8952 | const struct ofputil_bucket *bkt; | |
8953 | ||
8954 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8955 | ||
8956 | /* Mark all bucket_ids that are present in gm | |
8957 | * as used in the pool. */ | |
8958 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8959 | if (bkt == bucket) { | |
8960 | break; | |
8961 | } | |
8962 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8963 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8964 | } | |
8965 | } | |
8966 | } | |
8967 | ||
8968 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8969 | OVS_NOT_REACHED(); | |
8970 | } | |
8971 | } else { | |
8972 | bucket_id = bucket->bucket_id; | |
8973 | } | |
8974 | ||
8975 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8976 | } | |
8977 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8978 | ogm->command = htons(gm->command); | |
8979 | ogm->type = gm->type; | |
8980 | ogm->group_id = htonl(gm->group_id); | |
8981 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8982 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8983 | |
53eb84a5 SH |
8984 | /* Add group properties */ |
8985 | if (gm->props.selection_method[0]) { | |
8986 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8987 | } | |
8988 | ||
18ac06d3 SH |
8989 | id_pool_destroy(bucket_ids); |
8990 | return b; | |
8991 | } | |
8992 | ||
d4b1d0ca | 8993 | static void |
9dd30b05 BP |
8994 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8995 | { | |
d4b1d0ca SH |
8996 | const char *opt_version; |
8997 | const char *version; | |
8998 | const char *cmd_str; | |
8999 | ||
9000 | switch (cmd) { | |
9001 | case OFPGC15_ADD: | |
9002 | case OFPGC15_MODIFY: | |
9003 | case OFPGC15_DELETE: | |
9004 | version = "1.1"; | |
9005 | opt_version = "11"; | |
9006 | break; | |
9007 | ||
9008 | case OFPGC15_INSERT_BUCKET: | |
9009 | case OFPGC15_REMOVE_BUCKET: | |
9010 | version = "1.5"; | |
9011 | opt_version = "15"; | |
9dd30b05 | 9012 | break; |
d4b1d0ca SH |
9013 | |
9014 | default: | |
9015 | OVS_NOT_REACHED(); | |
9016 | } | |
9017 | ||
9018 | switch (cmd) { | |
9019 | case OFPGC15_ADD: | |
9020 | cmd_str = "add-group"; | |
9021 | break; | |
9022 | ||
9023 | case OFPGC15_MODIFY: | |
9024 | cmd_str = "mod-group"; | |
9025 | break; | |
9026 | ||
9027 | case OFPGC15_DELETE: | |
9028 | cmd_str = "del-group"; | |
9029 | break; | |
9030 | ||
9031 | case OFPGC15_INSERT_BUCKET: | |
9032 | cmd_str = "insert-bucket"; | |
9033 | break; | |
9034 | ||
9035 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 9036 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
9037 | break; |
9038 | ||
9039 | default: | |
9040 | OVS_NOT_REACHED(); | |
9041 | } | |
9042 | ||
9043 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
9044 | cmd_str, version, opt_version); | |
9045 | ||
9046 | } | |
9047 | ||
4498bea5 SH |
9048 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
9049 | * 'ofp_version' and returns the message. */ | |
9050 | struct ofpbuf * | |
9051 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
9052 | const struct ofputil_group_mod *gm) | |
9053 | { | |
d4b1d0ca | 9054 | |
7395c052 | 9055 | switch (ofp_version) { |
d4b1d0ca SH |
9056 | case OFP10_VERSION: |
9057 | bad_group_cmd(gm->command); | |
7395c052 NZ |
9058 | |
9059 | case OFP11_VERSION: | |
9060 | case OFP12_VERSION: | |
c37c0382 AC |
9061 | case OFP13_VERSION: |
9062 | case OFP14_VERSION: | |
d4b1d0ca SH |
9063 | if (gm->command > OFPGC11_DELETE) { |
9064 | bad_group_cmd(gm->command); | |
9065 | } | |
4498bea5 | 9066 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 9067 | |
18ac06d3 | 9068 | case OFP15_VERSION: |
b79d45a1 | 9069 | case OFP16_VERSION: |
18ac06d3 SH |
9070 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); |
9071 | ||
7395c052 | 9072 | default: |
428b2edd | 9073 | OVS_NOT_REACHED(); |
7395c052 | 9074 | } |
7395c052 NZ |
9075 | } |
9076 | ||
aead63f2 SH |
9077 | static enum ofperr |
9078 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9079 | struct ofputil_group_mod *gm) | |
9080 | { | |
9081 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 9082 | enum ofperr error; |
aead63f2 SH |
9083 | |
9084 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9085 | gm->command = ntohs(ogm->command); | |
9086 | gm->type = ogm->type; | |
9087 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 9088 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 9089 | |
6fd6ed71 | 9090 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
9091 | &gm->buckets); |
9092 | ||
9093 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
9094 | if (!error | |
9095 | && ofp_version >= OFP13_VERSION | |
9096 | && gm->command == OFPGC11_DELETE | |
417e7e66 | 9097 | && !ovs_list_is_empty(&gm->buckets)) { |
08ba0810 BP |
9098 | error = OFPERR_OFPGMFC_INVALID_GROUP; |
9099 | } | |
9100 | ||
9101 | return error; | |
aead63f2 SH |
9102 | } |
9103 | ||
18ac06d3 SH |
9104 | static enum ofperr |
9105 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
9106 | struct ofputil_group_mod *gm) | |
9107 | { | |
9108 | const struct ofp15_group_mod *ogm; | |
9109 | uint16_t bucket_list_len; | |
9110 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
9111 | ||
9112 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
9113 | gm->command = ntohs(ogm->command); | |
9114 | gm->type = ogm->type; | |
9115 | gm->group_id = ntohl(ogm->group_id); | |
9116 | ||
9117 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
9118 | switch (gm->command) { | |
9119 | case OFPGC15_REMOVE_BUCKET: | |
9120 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9121 | error = 0; | |
9122 | } | |
9123 | /* Fall through */ | |
9124 | case OFPGC15_INSERT_BUCKET: | |
9125 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
9126 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
9127 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
9128 | error = 0; | |
9129 | } | |
9130 | break; | |
9131 | ||
9132 | case OFPGC11_ADD: | |
9133 | case OFPGC11_MODIFY: | |
9134 | case OFPGC11_DELETE: | |
9135 | default: | |
9136 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
9137 | error = 0; | |
9138 | } | |
9139 | break; | |
9140 | } | |
9141 | if (error) { | |
9142 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
9143 | "group command bucket id (%u) is out of range", | |
9144 | gm->command_bucket_id); | |
9145 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
9146 | } | |
9147 | ||
79870963 | 9148 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 9149 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 9150 | gm->type, &gm->buckets); |
bc65c25a SH |
9151 | if (error) { |
9152 | return error; | |
18ac06d3 SH |
9153 | } |
9154 | ||
bc65c25a SH |
9155 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
9156 | msg->size); | |
18ac06d3 SH |
9157 | } |
9158 | ||
7395c052 NZ |
9159 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
9160 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
9161 | enum ofperr | |
9162 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
9163 | struct ofputil_group_mod *gm) | |
9164 | { | |
0a2869d5 | 9165 | ofputil_init_group_properties(&gm->props); |
7395c052 | 9166 | |
0a2869d5 BP |
9167 | enum ofp_version ofp_version = oh->version; |
9168 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); | |
7395c052 NZ |
9169 | ofpraw_pull_assert(&msg); |
9170 | ||
0a2869d5 | 9171 | enum ofperr err; |
aead63f2 SH |
9172 | switch (ofp_version) |
9173 | { | |
9174 | case OFP11_VERSION: | |
9175 | case OFP12_VERSION: | |
9176 | case OFP13_VERSION: | |
9177 | case OFP14_VERSION: | |
aead63f2 SH |
9178 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
9179 | break; | |
9180 | ||
18ac06d3 | 9181 | case OFP15_VERSION: |
b79d45a1 | 9182 | case OFP16_VERSION: |
18ac06d3 SH |
9183 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); |
9184 | break; | |
9185 | ||
aead63f2 SH |
9186 | case OFP10_VERSION: |
9187 | default: | |
9188 | OVS_NOT_REACHED(); | |
9189 | } | |
e57681e5 SH |
9190 | if (err) { |
9191 | return err; | |
9192 | } | |
9193 | ||
e1799eb7 SH |
9194 | switch (gm->type) { |
9195 | case OFPGT11_INDIRECT: | |
beaa2b87 LS |
9196 | if (gm->command != OFPGC11_DELETE |
9197 | && !ovs_list_is_singleton(&gm->buckets) ) { | |
290eada7 | 9198 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
9199 | } |
9200 | break; | |
9201 | case OFPGT11_ALL: | |
9202 | case OFPGT11_SELECT: | |
9203 | case OFPGT11_FF: | |
9204 | break; | |
9205 | default: | |
09d4b951 | 9206 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
9207 | } |
9208 | ||
9209 | switch (gm->command) { | |
9210 | case OFPGC11_ADD: | |
9211 | case OFPGC11_MODIFY: | |
9212 | case OFPGC11_DELETE: | |
9213 | case OFPGC15_INSERT_BUCKET: | |
9214 | break; | |
9215 | case OFPGC15_REMOVE_BUCKET: | |
417e7e66 | 9216 | if (!ovs_list_is_empty(&gm->buckets)) { |
65075b99 SH |
9217 | return OFPERR_OFPGMFC_BAD_BUCKET; |
9218 | } | |
9219 | break; | |
9220 | default: | |
09d4b951 | 9221 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
9222 | } |
9223 | ||
0a2869d5 | 9224 | struct ofputil_bucket *bucket; |
e57681e5 | 9225 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
9226 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
9227 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9228 | } | |
9229 | ||
e57681e5 SH |
9230 | switch (gm->type) { |
9231 | case OFPGT11_ALL: | |
9232 | case OFPGT11_INDIRECT: | |
9233 | if (ofputil_bucket_has_liveness(bucket)) { | |
9234 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
9235 | } | |
9236 | break; | |
9237 | case OFPGT11_SELECT: | |
9238 | break; | |
9239 | case OFPGT11_FF: | |
9240 | if (!ofputil_bucket_has_liveness(bucket)) { | |
9241 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
9242 | } | |
9243 | break; | |
9244 | default: | |
896313f3 FL |
9245 | /* Returning BAD TYPE to be consistent |
9246 | * though gm->type has been checked already. */ | |
9247 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
9248 | } |
9249 | } | |
9250 | ||
9251 | return 0; | |
7395c052 NZ |
9252 | } |
9253 | ||
64626975 SH |
9254 | /* Parse a queue status request message into 'oqsr'. |
9255 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
9256 | enum ofperr | |
9257 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
9258 | struct ofputil_queue_stats_request *oqsr) | |
9259 | { | |
9260 | switch ((enum ofp_version)request->version) { | |
b79d45a1 | 9261 | case OFP16_VERSION: |
42dccab5 | 9262 | case OFP15_VERSION: |
c37c0382 | 9263 | case OFP14_VERSION: |
2e1ae200 | 9264 | case OFP13_VERSION: |
64626975 SH |
9265 | case OFP12_VERSION: |
9266 | case OFP11_VERSION: { | |
9267 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
9268 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
9269 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
9270 | } | |
9271 | ||
9272 | case OFP10_VERSION: { | |
7f05e7ab JR |
9273 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
9274 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 9275 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
9276 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
9277 | if (oqsr->port_no == OFPP_ALL) { | |
9278 | oqsr->port_no = OFPP_ANY; | |
9279 | } | |
64626975 SH |
9280 | return 0; |
9281 | } | |
9282 | ||
9283 | default: | |
428b2edd | 9284 | OVS_NOT_REACHED(); |
64626975 SH |
9285 | } |
9286 | } | |
9287 | ||
0746a84f BP |
9288 | /* Encode a queue stats request for 'oqsr', the encoded message |
9289 | * will be for OpenFlow version 'ofp_version'. Returns message | |
9290 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
9291 | struct ofpbuf * |
9292 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
9293 | const struct ofputil_queue_stats_request *oqsr) | |
9294 | { | |
9295 | struct ofpbuf *request; | |
9296 | ||
9297 | switch (ofp_version) { | |
9298 | case OFP11_VERSION: | |
2e1ae200 | 9299 | case OFP12_VERSION: |
c37c0382 | 9300 | case OFP13_VERSION: |
42dccab5 | 9301 | case OFP14_VERSION: |
b79d45a1 BP |
9302 | case OFP15_VERSION: |
9303 | case OFP16_VERSION: { | |
64626975 SH |
9304 | struct ofp11_queue_stats_request *req; |
9305 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
9306 | req = ofpbuf_put_zeros(request, sizeof *req); | |
9307 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
9308 | req->queue_id = htonl(oqsr->queue_id); | |
9309 | break; | |
9310 | } | |
9311 | case OFP10_VERSION: { | |
9312 | struct ofp10_queue_stats_request *req; | |
9313 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
9314 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 9315 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
9316 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
9317 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
9318 | req->queue_id = htonl(oqsr->queue_id); |
9319 | break; | |
9320 | } | |
9321 | default: | |
428b2edd | 9322 | OVS_NOT_REACHED(); |
64626975 SH |
9323 | } |
9324 | ||
9325 | return request; | |
9326 | } | |
9327 | ||
9328 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
9329 | * message 'oh'. */ | |
9330 | size_t | |
9331 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
9332 | { | |
0a2869d5 | 9333 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
64626975 | 9334 | ofpraw_pull_assert(&b); |
0a2869d5 BP |
9335 | |
9336 | for (size_t n = 0; ; n++) { | |
9337 | struct ofputil_queue_stats qs; | |
9338 | if (ofputil_decode_queue_stats(&qs, &b)) { | |
9339 | return n; | |
9340 | } | |
1bb2cdbe | 9341 | } |
64626975 SH |
9342 | } |
9343 | ||
9344 | static enum ofperr | |
9345 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
9346 | const struct ofp10_queue_stats *qs10) | |
9347 | { | |
4e022ec0 | 9348 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 9349 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
9350 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
9351 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
9352 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
9353 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9354 | |
9355 | return 0; | |
9356 | } | |
9357 | ||
9358 | static enum ofperr | |
9359 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
9360 | const struct ofp11_queue_stats *qs11) | |
9361 | { | |
9362 | enum ofperr error; | |
9363 | ||
9364 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
9365 | if (error) { | |
9366 | return error; | |
9367 | } | |
9368 | ||
9369 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
9370 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
9371 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
9372 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
9373 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
9374 | |
9375 | return 0; | |
9376 | } | |
9377 | ||
2e1ae200 JR |
9378 | static enum ofperr |
9379 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
9380 | const struct ofp13_queue_stats *qs13) | |
9381 | { | |
6dc34a0d | 9382 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 9383 | if (!error) { |
6dc34a0d BP |
9384 | oqs->duration_sec = ntohl(qs13->duration_sec); |
9385 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
9386 | } |
9387 | ||
9388 | return error; | |
9389 | } | |
9390 | ||
1bb2cdbe BP |
9391 | static enum ofperr |
9392 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
9393 | struct ofpbuf *msg) | |
9394 | { | |
9395 | const struct ofp14_queue_stats *qs14; | |
9396 | size_t len; | |
9397 | ||
9398 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
9399 | if (!qs14) { | |
9400 | return OFPERR_OFPBRC_BAD_LEN; | |
9401 | } | |
9402 | ||
9403 | len = ntohs(qs14->length); | |
6fd6ed71 | 9404 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
9405 | return OFPERR_OFPBRC_BAD_LEN; |
9406 | } | |
9407 | ofpbuf_pull(msg, len - sizeof *qs14); | |
9408 | ||
9409 | /* No properties yet defined, so ignore them for now. */ | |
9410 | ||
9411 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
9412 | } | |
9413 | ||
64626975 SH |
9414 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
9415 | * ofputil_queue_stats in 'qs'. | |
9416 | * | |
9417 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
9418 | * message. Calling this function multiple times for a single 'msg' iterates | |
9419 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
9420 | * null and not modify them between calls. | |
9421 | * | |
9422 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
9423 | * otherwise a positive errno value. */ | |
9424 | int | |
9425 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
9426 | { | |
9427 | enum ofperr error; | |
9428 | enum ofpraw raw; | |
9429 | ||
6fd6ed71 | 9430 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
9431 | : ofpraw_pull(&raw, msg)); |
9432 | if (error) { | |
9433 | return error; | |
9434 | } | |
9435 | ||
6fd6ed71 | 9436 | if (!msg->size) { |
64626975 | 9437 | return EOF; |
1bb2cdbe BP |
9438 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
9439 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
9440 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
9441 | const struct ofp13_queue_stats *qs13; | |
9442 | ||
9443 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
9444 | if (!qs13) { | |
9445 | goto bad_len; | |
9446 | } | |
9447 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
9448 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
9449 | const struct ofp11_queue_stats *qs11; | |
9450 | ||
9451 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
9452 | if (!qs11) { | |
2e1ae200 | 9453 | goto bad_len; |
64626975 SH |
9454 | } |
9455 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
9456 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
9457 | const struct ofp10_queue_stats *qs10; | |
9458 | ||
9459 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
9460 | if (!qs10) { | |
2e1ae200 | 9461 | goto bad_len; |
64626975 SH |
9462 | } |
9463 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9464 | } else { | |
428b2edd | 9465 | OVS_NOT_REACHED(); |
64626975 | 9466 | } |
2e1ae200 JR |
9467 | |
9468 | bad_len: | |
437d0d22 | 9469 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9470 | "bytes at end", msg->size); |
2e1ae200 | 9471 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9472 | } |
9473 | ||
9474 | static void | |
9475 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9476 | struct ofp10_queue_stats *qs10) | |
9477 | { | |
4e022ec0 | 9478 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9479 | memset(qs10->pad, 0, sizeof qs10->pad); |
9480 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9481 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9482 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9483 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9484 | } |
9485 | ||
9486 | static void | |
9487 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9488 | struct ofp11_queue_stats *qs11) | |
9489 | { | |
9490 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9491 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9492 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9493 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9494 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9495 | } |
9496 | ||
2e1ae200 JR |
9497 | static void |
9498 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9499 | struct ofp13_queue_stats *qs13) | |
9500 | { | |
9501 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9502 | if (oqs->duration_sec != UINT32_MAX) { |
9503 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9504 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9505 | } else { | |
b8266395 BP |
9506 | qs13->duration_sec = OVS_BE32_MAX; |
9507 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9508 | } |
2e1ae200 JR |
9509 | } |
9510 | ||
1bb2cdbe BP |
9511 | static void |
9512 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9513 | struct ofp14_queue_stats *qs14) | |
9514 | { | |
9515 | qs14->length = htons(sizeof *qs14); | |
9516 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9517 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9518 | } | |
9519 | ||
9520 | ||
64626975 SH |
9521 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9522 | void | |
ca6ba700 | 9523 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9524 | const struct ofputil_queue_stats *oqs) |
9525 | { | |
e28ac5cf | 9526 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9527 | case OFP13_VERSION: { |
9528 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9529 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9530 | break; | |
9531 | } | |
9532 | ||
64626975 SH |
9533 | case OFP12_VERSION: |
9534 | case OFP11_VERSION: { | |
2e1ae200 | 9535 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9536 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9537 | break; | |
9538 | } | |
9539 | ||
9540 | case OFP10_VERSION: { | |
2e1ae200 | 9541 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9542 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9543 | break; | |
9544 | } | |
9545 | ||
42dccab5 | 9546 | case OFP14_VERSION: |
b79d45a1 BP |
9547 | case OFP15_VERSION: |
9548 | case OFP16_VERSION: { | |
1bb2cdbe BP |
9549 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9550 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9551 | break; |
1bb2cdbe | 9552 | } |
c37c0382 | 9553 | |
64626975 | 9554 | default: |
428b2edd | 9555 | OVS_NOT_REACHED(); |
64626975 SH |
9556 | } |
9557 | } | |
777af88d AC |
9558 | |
9559 | enum ofperr | |
9560 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9561 | struct ofputil_bundle_ctrl_msg *msg) | |
9562 | { | |
0a2869d5 BP |
9563 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
9564 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
9565 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL |
9566 | || raw == OFPRAW_ONFT13_BUNDLE_CONTROL); | |
777af88d | 9567 | |
0a2869d5 | 9568 | const struct ofp14_bundle_ctrl_msg *m = b.msg; |
777af88d AC |
9569 | msg->bundle_id = ntohl(m->bundle_id); |
9570 | msg->type = ntohs(m->type); | |
9571 | msg->flags = ntohs(m->flags); | |
9572 | ||
9573 | return 0; | |
9574 | } | |
9575 | ||
db5076ee JR |
9576 | struct ofpbuf * |
9577 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9578 | struct ofputil_bundle_ctrl_msg *bc) | |
9579 | { | |
9580 | struct ofpbuf *request; | |
9581 | struct ofp14_bundle_ctrl_msg *m; | |
9582 | ||
9583 | switch (ofp_version) { | |
9584 | case OFP10_VERSION: | |
9585 | case OFP11_VERSION: | |
9586 | case OFP12_VERSION: | |
06d4d4b6 | 9587 | ovs_fatal(0, "bundles need OpenFlow 1.3 or later " |
db5076ee | 9588 | "(\'-O OpenFlow14\')"); |
06d4d4b6 | 9589 | case OFP13_VERSION: |
db5076ee JR |
9590 | case OFP14_VERSION: |
9591 | case OFP15_VERSION: | |
b79d45a1 | 9592 | case OFP16_VERSION: |
06d4d4b6 JR |
9593 | request = ofpraw_alloc(ofp_version == OFP13_VERSION |
9594 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9595 | : OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
db5076ee JR |
9596 | m = ofpbuf_put_zeros(request, sizeof *m); |
9597 | ||
9598 | m->bundle_id = htonl(bc->bundle_id); | |
9599 | m->type = htons(bc->type); | |
9600 | m->flags = htons(bc->flags); | |
9601 | break; | |
9602 | default: | |
9603 | OVS_NOT_REACHED(); | |
9604 | } | |
9605 | ||
9606 | return request; | |
9607 | } | |
9608 | ||
777af88d AC |
9609 | struct ofpbuf * |
9610 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9611 | struct ofputil_bundle_ctrl_msg *msg) | |
9612 | { | |
9613 | struct ofpbuf *buf; | |
9614 | struct ofp14_bundle_ctrl_msg *m; | |
9615 | ||
06d4d4b6 JR |
9616 | buf = ofpraw_alloc_reply(oh->version == OFP13_VERSION |
9617 | ? OFPRAW_ONFT13_BUNDLE_CONTROL | |
9618 | : OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
777af88d AC |
9619 | m = ofpbuf_put_zeros(buf, sizeof *m); |
9620 | ||
9621 | m->bundle_id = htonl(msg->bundle_id); | |
9622 | m->type = htons(msg->type); | |
9623 | m->flags = htons(msg->flags); | |
9624 | ||
9625 | return buf; | |
9626 | } | |
9627 | ||
c25ce22d JR |
9628 | /* Return true for bundlable state change requests, false for other messages. |
9629 | */ | |
9630 | static bool | |
9631 | ofputil_is_bundlable(enum ofptype type) | |
9632 | { | |
9633 | switch (type) { | |
9634 | /* Minimum required by OpenFlow 1.4. */ | |
9635 | case OFPTYPE_PORT_MOD: | |
9636 | case OFPTYPE_FLOW_MOD: | |
9637 | return true; | |
9638 | ||
9639 | /* Nice to have later. */ | |
9640 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9641 | case OFPTYPE_GROUP_MOD: | |
9642 | case OFPTYPE_TABLE_MOD: | |
9643 | case OFPTYPE_METER_MOD: | |
9644 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9645 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9646 | |
9647 | /* Not to be bundlable. */ | |
9648 | case OFPTYPE_ECHO_REQUEST: | |
9649 | case OFPTYPE_FEATURES_REQUEST: | |
9650 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9651 | case OFPTYPE_SET_CONFIG: | |
9652 | case OFPTYPE_BARRIER_REQUEST: | |
9653 | case OFPTYPE_ROLE_REQUEST: | |
9654 | case OFPTYPE_ECHO_REPLY: | |
9655 | case OFPTYPE_SET_FLOW_FORMAT: | |
9656 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9657 | case OFPTYPE_SET_CONTROLLER_ID: | |
9658 | case OFPTYPE_FLOW_AGE: | |
9659 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9660 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9661 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9662 | case OFPTYPE_DESC_STATS_REQUEST: | |
9663 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9664 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9665 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9666 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9667 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9668 | case OFPTYPE_PORT_STATS_REQUEST: |
9669 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9670 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9671 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9672 | case OFPTYPE_METER_STATS_REQUEST: | |
9673 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9674 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9675 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9676 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9677 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9678 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9679 | case OFPTYPE_BUNDLE_CONTROL: | |
9680 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9681 | case OFPTYPE_HELLO: | |
9682 | case OFPTYPE_ERROR: | |
9683 | case OFPTYPE_FEATURES_REPLY: | |
9684 | case OFPTYPE_GET_CONFIG_REPLY: | |
9685 | case OFPTYPE_PACKET_IN: | |
9686 | case OFPTYPE_FLOW_REMOVED: | |
9687 | case OFPTYPE_PORT_STATUS: | |
9688 | case OFPTYPE_BARRIER_REPLY: | |
9689 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9690 | case OFPTYPE_DESC_STATS_REPLY: | |
9691 | case OFPTYPE_FLOW_STATS_REPLY: | |
9692 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9693 | case OFPTYPE_PORT_STATS_REPLY: | |
9694 | case OFPTYPE_TABLE_STATS_REPLY: | |
9695 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9696 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9697 | case OFPTYPE_ROLE_REPLY: | |
9698 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9699 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9700 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9701 | case OFPTYPE_GET_ASYNC_REPLY: | |
9702 | case OFPTYPE_GROUP_STATS_REPLY: | |
9703 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9704 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9705 | case OFPTYPE_METER_STATS_REPLY: | |
9706 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9707 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9708 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9709 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9710 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9711 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 9712 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 ML |
9713 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9714 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
77ab5fd2 | 9715 | case OFPTYPE_NXT_RESUME: |
c25ce22d JR |
9716 | break; |
9717 | } | |
9718 | ||
9719 | return false; | |
9720 | } | |
9721 | ||
777af88d AC |
9722 | enum ofperr |
9723 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 | 9724 | struct ofputil_bundle_add_msg *msg, |
0a2869d5 | 9725 | enum ofptype *typep) |
777af88d | 9726 | { |
0a2869d5 BP |
9727 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
9728 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
06d4d4b6 JR |
9729 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE |
9730 | || raw == OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE); | |
777af88d | 9731 | |
0a2869d5 | 9732 | const struct ofp14_bundle_ctrl_msg *m = ofpbuf_pull(&b, sizeof *m); |
777af88d AC |
9733 | msg->bundle_id = ntohl(m->bundle_id); |
9734 | msg->flags = ntohs(m->flags); | |
9735 | ||
6fd6ed71 | 9736 | msg->msg = b.data; |
46be7132 | 9737 | if (msg->msg->version != oh->version) { |
bc02606a | 9738 | return OFPERR_OFPBFC_BAD_VERSION; |
46be7132 | 9739 | } |
0a2869d5 | 9740 | size_t inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9741 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9742 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9743 | } | |
be6f6393 JR |
9744 | if (msg->msg->xid != oh->xid) { |
9745 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9746 | } | |
777af88d | 9747 | |
c25ce22d | 9748 | /* Reject unbundlable messages. */ |
0a2869d5 BP |
9749 | enum ofptype type; |
9750 | enum ofperr error = ofptype_decode(&type, msg->msg); | |
c25ce22d JR |
9751 | if (error) { |
9752 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9753 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9754 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9755 | } | |
9756 | ||
0a2869d5 | 9757 | if (!ofputil_is_bundlable(type)) { |
44648b0f | 9758 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
0a2869d5 | 9759 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type)); |
c25ce22d JR |
9760 | return OFPERR_OFPBFC_MSG_UNSUP; |
9761 | } | |
0a2869d5 BP |
9762 | if (typep) { |
9763 | *typep = type; | |
9764 | } | |
c25ce22d | 9765 | |
777af88d AC |
9766 | return 0; |
9767 | } | |
9768 | ||
9769 | struct ofpbuf * | |
9770 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9771 | struct ofputil_bundle_add_msg *msg) | |
9772 | { | |
9773 | struct ofpbuf *request; | |
9774 | struct ofp14_bundle_ctrl_msg *m; | |
9775 | ||
7b3dca89 | 9776 | /* Must use the same xid as the embedded message. */ |
06d4d4b6 JR |
9777 | request = ofpraw_alloc_xid(ofp_version == OFP13_VERSION |
9778 | ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE | |
9779 | : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
7b3dca89 | 9780 | msg->msg->xid, 0); |
777af88d AC |
9781 | m = ofpbuf_put_zeros(request, sizeof *m); |
9782 | ||
9783 | m->bundle_id = htonl(msg->bundle_id); | |
9784 | m->flags = htons(msg->flags); | |
9785 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9786 | ||
9787 | return request; | |
9788 | } | |
6159c531 JG |
9789 | |
9790 | static void | |
4e548ad9 | 9791 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9792 | { |
4e548ad9 | 9793 | struct ofputil_tlv_map *map; |
6159c531 JG |
9794 | |
9795 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9796 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9797 | |
9798 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9799 | nx_map->option_class = htons(map->option_class); | |
9800 | nx_map->option_type = map->option_type; | |
9801 | nx_map->option_len = map->option_len; | |
9802 | nx_map->index = htons(map->index); | |
9803 | } | |
9804 | } | |
9805 | ||
9806 | struct ofpbuf * | |
4e548ad9 ML |
9807 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9808 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9809 | { |
9810 | struct ofpbuf *b; | |
4e548ad9 | 9811 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9812 | |
4e548ad9 ML |
9813 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9814 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9815 | nx_ttm->command = htons(ttm->command); | |
9816 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9817 | |
9818 | return b; | |
9819 | } | |
9820 | ||
9821 | static enum ofperr | |
4e548ad9 | 9822 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9823 | struct ovs_list *mappings) |
6159c531 | 9824 | { |
417e7e66 | 9825 | ovs_list_init(mappings); |
6159c531 JG |
9826 | |
9827 | while (msg->size) { | |
4e548ad9 ML |
9828 | struct nx_tlv_map *nx_map; |
9829 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9830 | |
9831 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9832 | map = xmalloc(sizeof *map); | |
417e7e66 | 9833 | ovs_list_push_back(mappings, &map->list_node); |
6159c531 JG |
9834 | |
9835 | map->option_class = ntohs(nx_map->option_class); | |
9836 | map->option_type = nx_map->option_type; | |
9837 | ||
9838 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9839 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9840 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9841 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9842 | map->option_len); |
4e548ad9 ML |
9843 | ofputil_uninit_tlv_table(mappings); |
9844 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9845 | } |
9846 | ||
9847 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9848 | if (map->index >= max_fields) { |
6159c531 | 9849 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9850 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9851 | map->index, max_fields - 1); |
4e548ad9 ML |
9852 | ofputil_uninit_tlv_table(mappings); |
9853 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9854 | } |
9855 | } | |
9856 | ||
9857 | return 0; | |
9858 | } | |
9859 | ||
9860 | enum ofperr | |
4e548ad9 ML |
9861 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9862 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 | 9863 | { |
0a2869d5 | 9864 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
9865 | ofpraw_pull_assert(&msg); |
9866 | ||
0a2869d5 | 9867 | struct nx_tlv_table_mod *nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
4e548ad9 ML |
9868 | ttm->command = ntohs(nx_ttm->command); |
9869 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9870 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9871 | "tlv table mod command (%u) is out of range", |
9872 | ttm->command); | |
9873 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9874 | } |
9875 | ||
4e548ad9 ML |
9876 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9877 | &ttm->mappings); | |
6159c531 JG |
9878 | } |
9879 | ||
9880 | struct ofpbuf * | |
4e548ad9 ML |
9881 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9882 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9883 | { |
9884 | struct ofpbuf *b; | |
4e548ad9 | 9885 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9886 | |
4e548ad9 ML |
9887 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9888 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9889 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9890 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9891 | |
4e548ad9 | 9892 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9893 | |
9894 | return b; | |
9895 | } | |
9896 | ||
4e548ad9 | 9897 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9898 | * if successful, otherwise an ofperr. |
9899 | * | |
4e548ad9 ML |
9900 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9901 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9902 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9903 | enum ofperr |
4e548ad9 ML |
9904 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9905 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 | 9906 | { |
0a2869d5 | 9907 | struct ofpbuf msg = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6159c531 JG |
9908 | ofpraw_pull_assert(&msg); |
9909 | ||
0a2869d5 | 9910 | struct nx_tlv_table_reply *nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
4e548ad9 ML |
9911 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); |
9912 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9913 | |
4e548ad9 | 9914 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9915 | } |
9916 | ||
9917 | void | |
4e548ad9 | 9918 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9919 | { |
4e548ad9 | 9920 | struct ofputil_tlv_map *map; |
6159c531 JG |
9921 | |
9922 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9923 | free(map); | |
9924 | } | |
9925 | } | |
98090482 | 9926 | |
2da7974c BP |
9927 | const char * |
9928 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
9929 | { | |
9930 | switch (type) { | |
9931 | case OAM_PACKET_IN: return "PACKET_IN"; | |
9932 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
9933 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
9934 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
9935 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
9936 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
9937 | ||
9938 | case OAM_N_TYPES: | |
9939 | default: | |
9940 | OVS_NOT_REACHED(); | |
9941 | } | |
9942 | } | |
9943 | ||
8fd0bb60 BP |
9944 | struct ofp14_async_prop { |
9945 | uint64_t prop_type; | |
9946 | enum ofputil_async_msg_type oam; | |
9947 | bool master; | |
9948 | uint32_t allowed10, allowed14; | |
9949 | }; | |
9950 | ||
9951 | #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \ | |
9952 | { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \ | |
9953 | { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) } | |
9954 | ||
9955 | static const struct ofp14_async_prop async_props[] = { | |
9956 | AP_PAIR( 0, OAM_PACKET_IN, OFPR10_BITS, OFPR14_BITS), | |
9957 | AP_PAIR( 2, OAM_PORT_STATUS, (1 << OFPPR_N_REASONS) - 1, 0), | |
9958 | AP_PAIR( 4, OAM_FLOW_REMOVED, (1 << OVS_OFPRR_NONE) - 1, 0), | |
9959 | AP_PAIR( 6, OAM_ROLE_STATUS, (1 << OFPCRR_N_REASONS) - 1, 0), | |
9960 | AP_PAIR( 8, OAM_TABLE_STATUS, OFPTR_BITS, 0), | |
9961 | AP_PAIR(10, OAM_REQUESTFORWARD, (1 << OFPRFR_N_REASONS) - 1, 0), | |
9962 | }; | |
9963 | ||
9964 | #define FOR_EACH_ASYNC_PROP(VAR) \ | |
9965 | for (const struct ofp14_async_prop *VAR = async_props; \ | |
9966 | VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++) | |
9967 | ||
9968 | static const struct ofp14_async_prop * | |
9969 | get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type) | |
9970 | { | |
9971 | FOR_EACH_ASYNC_PROP (ap) { | |
9972 | if (prop_type == ap->prop_type) { | |
9973 | return ap; | |
9974 | } | |
9975 | } | |
9976 | return NULL; | |
9977 | } | |
9978 | ||
9979 | static const struct ofp14_async_prop * | |
9980 | get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam, | |
9981 | bool master) | |
9982 | { | |
9983 | FOR_EACH_ASYNC_PROP (ap) { | |
9984 | if (ap->oam == oam && ap->master == master) { | |
9985 | return ap; | |
9986 | } | |
9987 | } | |
9988 | return NULL; | |
9989 | } | |
9990 | ||
9991 | static uint32_t | |
9992 | ofp14_async_prop_allowed(const struct ofp14_async_prop *prop, | |
9993 | enum ofp_version version) | |
9994 | { | |
9995 | return version >= OFP14_VERSION ? prop->allowed14 : prop->allowed10; | |
9996 | } | |
9997 | ||
9998 | static ovs_be32 | |
9999 | encode_async_mask(const struct ofputil_async_cfg *src, | |
10000 | const struct ofp14_async_prop *ap, | |
10001 | enum ofp_version version) | |
10002 | { | |
10003 | uint32_t mask = ap->master ? src->master[ap->oam] : src->slave[ap->oam]; | |
10004 | return htonl(mask & ofp14_async_prop_allowed(ap, version)); | |
10005 | } | |
10006 | ||
10007 | static enum ofperr | |
10008 | decode_async_mask(ovs_be32 src, | |
10009 | const struct ofp14_async_prop *ap, enum ofp_version version, | |
10010 | bool loose, struct ofputil_async_cfg *dst) | |
10011 | { | |
10012 | uint32_t mask = ntohl(src); | |
10013 | uint32_t allowed = ofp14_async_prop_allowed(ap, version); | |
10014 | if (mask & ~allowed) { | |
10015 | OFPPROP_LOG(&bad_ofmsg_rl, loose, | |
10016 | "bad value %#x for %s (allowed mask %#x)", | |
10017 | mask, ofputil_async_msg_type_to_string(ap->oam), | |
10018 | allowed); | |
10019 | mask &= allowed; | |
10020 | if (!loose) { | |
10021 | return OFPERR_OFPACFC_INVALID; | |
10022 | } | |
10023 | } | |
10024 | ||
9bfe9334 BP |
10025 | if (ap->oam == OAM_PACKET_IN) { |
10026 | if (mask & (1u << OFPR_NO_MATCH)) { | |
10027 | mask |= 1u << OFPR_EXPLICIT_MISS; | |
10028 | if (version < OFP13_VERSION) { | |
10029 | mask |= 1u << OFPR_IMPLICIT_MISS; | |
10030 | } | |
10031 | } | |
10032 | } | |
10033 | ||
8fd0bb60 BP |
10034 | uint32_t *array = ap->master ? dst->master : dst->slave; |
10035 | array[ap->oam] = mask; | |
10036 | return 0; | |
10037 | } | |
10038 | ||
10039 | static enum ofperr | |
10040 | parse_async_tlv(const struct ofpbuf *property, | |
10041 | const struct ofp14_async_prop *ap, | |
10042 | struct ofputil_async_cfg *ac, | |
10043 | enum ofp_version version, bool loose) | |
10044 | { | |
10045 | enum ofperr error; | |
10046 | ovs_be32 mask; | |
10047 | ||
10048 | error = ofpprop_parse_be32(property, &mask); | |
10049 | if (error) { | |
10050 | return error; | |
10051 | } | |
10052 | ||
10053 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10054 | /* For experimenter properties, whether a property is for the master or | |
10055 | * slave role is indicated by both 'type' and 'exp_type' in struct | |
10056 | * ofp_prop_experimenter. Check that these are consistent. */ | |
10057 | const struct ofp_prop_experimenter *ope = property->data; | |
10058 | bool should_be_master = ope->type == htons(0xffff); | |
10059 | if (should_be_master != ap->master) { | |
10060 | VLOG_WARN_RL(&bad_ofmsg_rl, "async property type %#"PRIx16" " | |
10061 | "indicates %s role but exp_type %"PRIu32" indicates " | |
10062 | "%s role", | |
10063 | ntohs(ope->type), | |
10064 | should_be_master ? "master" : "slave", | |
10065 | ntohl(ope->exp_type), | |
10066 | ap->master ? "master" : "slave"); | |
10067 | return OFPERR_OFPBPC_BAD_EXP_TYPE; | |
10068 | } | |
10069 | } | |
10070 | ||
10071 | return decode_async_mask(mask, ap, version, loose, ac); | |
10072 | } | |
10073 | ||
10074 | static void | |
10075 | decode_legacy_async_masks(const ovs_be32 masks[2], | |
10076 | enum ofputil_async_msg_type oam, | |
10077 | enum ofp_version version, | |
10078 | struct ofputil_async_cfg *dst) | |
10079 | { | |
10080 | for (int i = 0; i < 2; i++) { | |
10081 | bool master = i == 0; | |
10082 | const struct ofp14_async_prop *ap | |
10083 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10084 | decode_async_mask(masks[i], ap, version, true, dst); | |
10085 | } | |
10086 | } | |
10087 | ||
98090482 | 10088 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 10089 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 | 10090 | * |
5876b4db BP |
10091 | * Some versions of the "set async config" request change only some of the |
10092 | * settings and leave the others alone. This function uses 'basis' as the | |
10093 | * initial state for decoding these. Other versions of the request change all | |
10094 | * the settings; this function ignores 'basis' when decoding these. | |
10095 | * | |
98090482 NR |
10096 | * If 'loose' is true, this function ignores properties and values that it does |
10097 | * not understand, as a controller would want to do when interpreting | |
10098 | * capabilities provided by a switch. If 'loose' is false, this function | |
10099 | * treats unknown properties and values as an error, as a switch would want to | |
10100 | * do when interpreting a configuration request made by a controller. | |
10101 | * | |
d18cc1ee AA |
10102 | * Returns 0 if successful, otherwise an OFPERR_* value. |
10103 | * | |
10104 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
10105 | * the valid range of mask. | |
10106 | * | |
10107 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
10108 | * supported.*/ | |
98090482 | 10109 | enum ofperr |
a930d4c5 | 10110 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
5876b4db | 10111 | const struct ofputil_async_cfg *basis, |
a930d4c5 | 10112 | struct ofputil_async_cfg *ac) |
98090482 | 10113 | { |
0a2869d5 BP |
10114 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
10115 | enum ofpraw raw = ofpraw_pull_assert(&b); | |
98090482 NR |
10116 | |
10117 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
10118 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
10119 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
10120 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
10121 | ||
5876b4db | 10122 | *ac = OFPUTIL_ASYNC_CFG_INIT; |
8fd0bb60 BP |
10123 | decode_legacy_async_masks(msg->packet_in_mask, OAM_PACKET_IN, |
10124 | oh->version, ac); | |
10125 | decode_legacy_async_masks(msg->port_status_mask, OAM_PORT_STATUS, | |
10126 | oh->version, ac); | |
10127 | decode_legacy_async_masks(msg->flow_removed_mask, OAM_FLOW_REMOVED, | |
10128 | oh->version, ac); | |
98090482 | 10129 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
af7bc161 BP |
10130 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY || |
10131 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2) { | |
5876b4db | 10132 | *ac = *basis; |
98090482 | 10133 | while (b.size > 0) { |
98090482 NR |
10134 | struct ofpbuf property; |
10135 | enum ofperr error; | |
34a543e3 | 10136 | uint64_t type; |
98090482 | 10137 | |
34a543e3 | 10138 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
10139 | if (error) { |
10140 | return error; | |
10141 | } | |
10142 | ||
8fd0bb60 BP |
10143 | const struct ofp14_async_prop *ap |
10144 | = get_ofp14_async_config_prop_by_prop_type(type); | |
10145 | error = (ap | |
10146 | ? parse_async_tlv(&property, ap, ac, oh->version, loose) | |
10147 | : OFPPROP_UNKNOWN(loose, "async config", type)); | |
b611d3ac | 10148 | if (error) { |
8fd0bb60 BP |
10149 | /* Most messages use OFPBPC_BAD_TYPE but async has its own (who |
10150 | * knows why, it's OpenFlow. */ | |
10151 | if (error == OFPERR_OFPBPC_BAD_TYPE) { | |
10152 | error = OFPERR_OFPACFC_UNSUPPORTED; | |
d18cc1ee | 10153 | } |
98090482 NR |
10154 | return error; |
10155 | } | |
10156 | } | |
10157 | } else { | |
10158 | return OFPERR_OFPBRC_BAD_VERSION; | |
10159 | } | |
10160 | return 0; | |
10161 | } | |
10162 | ||
8fd0bb60 BP |
10163 | static void |
10164 | encode_legacy_async_masks(const struct ofputil_async_cfg *ac, | |
10165 | enum ofputil_async_msg_type oam, | |
10166 | enum ofp_version version, | |
10167 | ovs_be32 masks[2]) | |
98090482 | 10168 | { |
8fd0bb60 BP |
10169 | for (int i = 0; i < 2; i++) { |
10170 | bool master = i == 0; | |
10171 | const struct ofp14_async_prop *ap | |
10172 | = get_ofp14_async_config_prop_by_oam(oam, master); | |
10173 | masks[i] = encode_async_mask(ac, ap, version); | |
10174 | } | |
10175 | } | |
98090482 | 10176 | |
8fd0bb60 BP |
10177 | static void |
10178 | ofputil_put_async_config__(const struct ofputil_async_cfg *ac, | |
10179 | struct ofpbuf *buf, bool tlv, | |
10180 | enum ofp_version version, uint32_t oams) | |
10181 | { | |
10182 | if (!tlv) { | |
10183 | struct nx_async_config *msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
10184 | encode_legacy_async_masks(ac, OAM_PACKET_IN, version, | |
10185 | msg->packet_in_mask); | |
10186 | encode_legacy_async_masks(ac, OAM_PORT_STATUS, version, | |
10187 | msg->port_status_mask); | |
10188 | encode_legacy_async_masks(ac, OAM_FLOW_REMOVED, version, | |
10189 | msg->flow_removed_mask); | |
10190 | } else { | |
10191 | FOR_EACH_ASYNC_PROP (ap) { | |
10192 | if (oams & (1u << ap->oam)) { | |
10193 | size_t ofs = buf->size; | |
10194 | ofpprop_put_be32(buf, ap->prop_type, | |
10195 | encode_async_mask(ac, ap, version)); | |
10196 | ||
10197 | /* For experimenter properties, we need to use type 0xfffe for | |
10198 | * master and 0xffff for slaves. */ | |
10199 | if (ofpprop_is_experimenter(ap->prop_type)) { | |
10200 | struct ofp_prop_experimenter *ope | |
10201 | = ofpbuf_at_assert(buf, ofs, sizeof *ope); | |
10202 | ope->type = ap->master ? htons(0xffff) : htons(0xfffe); | |
10203 | } | |
10204 | } | |
98090482 | 10205 | } |
98090482 | 10206 | } |
98090482 NR |
10207 | } |
10208 | ||
8fd0bb60 BP |
10209 | /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that |
10210 | * states that the asynchronous message configuration is 'ac'. */ | |
98090482 | 10211 | struct ofpbuf * |
af7bc161 BP |
10212 | ofputil_encode_get_async_reply(const struct ofp_header *oh, |
10213 | const struct ofputil_async_cfg *ac) | |
98090482 NR |
10214 | { |
10215 | struct ofpbuf *buf; | |
98090482 | 10216 | |
8fd0bb60 BP |
10217 | enum ofpraw raw = (oh->version < OFP14_VERSION |
10218 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
10219 | : OFPRAW_OFPT14_GET_ASYNC_REPLY); | |
10220 | struct ofpbuf *reply = ofpraw_alloc_reply(raw, oh, 0); | |
10221 | ofputil_put_async_config__(ac, reply, | |
10222 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY, | |
10223 | oh->version, UINT32_MAX); | |
10224 | return reply; | |
98090482 NR |
10225 | |
10226 | return buf; | |
10227 | } | |
a930d4c5 | 10228 | |
af7bc161 BP |
10229 | /* Encodes and returns a message, in a format appropriate for OpenFlow version |
10230 | * 'ofp_version', that sets the asynchronous message configuration to 'ac'. | |
10231 | * | |
10232 | * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages | |
10233 | * to configure. OF1.0 through OF1.3 can't natively configure a subset of | |
10234 | * messages, so more messages than requested may be configured. OF1.0 through | |
10235 | * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes | |
10236 | * any extensions then this function encodes an Open vSwitch extension message | |
10237 | * that does support configuring OVS extension OAM_*. */ | |
10238 | struct ofpbuf * | |
10239 | ofputil_encode_set_async_config(const struct ofputil_async_cfg *ac, | |
10240 | uint32_t oams, enum ofp_version ofp_version) | |
10241 | { | |
10242 | enum ofpraw raw = (ofp_version >= OFP14_VERSION ? OFPRAW_OFPT14_SET_ASYNC | |
10243 | : oams & OAM_EXTENSIONS ? OFPRAW_NXT_SET_ASYNC_CONFIG2 | |
10244 | : ofp_version >= OFP13_VERSION ? OFPRAW_OFPT13_SET_ASYNC | |
10245 | : OFPRAW_NXT_SET_ASYNC_CONFIG); | |
10246 | struct ofpbuf *request = ofpraw_alloc(raw, ofp_version, 0); | |
10247 | ofputil_put_async_config__(ac, request, | |
10248 | (raw == OFPRAW_OFPT14_SET_ASYNC || | |
10249 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG2), | |
10250 | ofp_version, oams); | |
10251 | return request; | |
10252 | } | |
10253 | ||
a930d4c5 BP |
10254 | struct ofputil_async_cfg |
10255 | ofputil_async_cfg_default(enum ofp_version version) | |
10256 | { | |
9bfe9334 BP |
10257 | /* We enable all of the OF1.4 reasons regardless of 'version' because the |
10258 | * reasons added in OF1.4 just are just refinements of the OFPR_ACTION | |
10259 | * introduced in OF1.0, breaking it into more specific categories. When we | |
10260 | * encode these for earlier OpenFlow versions, we translate them into | |
10261 | * OFPR_ACTION. */ | |
10262 | uint32_t pin = OFPR14_BITS & ~(1u << OFPR_INVALID_TTL); | |
10263 | pin |= 1u << OFPR_EXPLICIT_MISS; | |
10264 | if (version <= OFP12_VERSION) { | |
10265 | pin |= 1u << OFPR_IMPLICIT_MISS; | |
10266 | } | |
10267 | ||
a930d4c5 | 10268 | return (struct ofputil_async_cfg) { |
9bfe9334 | 10269 | .master[OAM_PACKET_IN] = pin, |
a930d4c5 BP |
10270 | |
10271 | .master[OAM_FLOW_REMOVED] | |
10272 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
10273 | ||
10274 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
10275 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
10276 | }; | |
10277 | } | |
6c6eedc5 SJ |
10278 | |
10279 | static void | |
10280 | ofputil_put_ofp14_table_desc(const struct ofputil_table_desc *td, | |
10281 | struct ofpbuf *b, enum ofp_version version) | |
10282 | { | |
10283 | struct ofp14_table_desc *otd; | |
10284 | struct ofp14_table_mod_prop_vacancy *otv; | |
10285 | size_t start_otd; | |
10286 | ||
10287 | start_otd = b->size; | |
10288 | ofpbuf_put_zeros(b, sizeof *otd); | |
10289 | ||
10290 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, td->eviction_flags); | |
10291 | ||
10292 | otv = ofpbuf_put_zeros(b, sizeof *otv); | |
10293 | otv->type = htons(OFPTMPT14_VACANCY); | |
10294 | otv->length = htons(sizeof *otv); | |
10295 | otv->vacancy_down = td->table_vacancy.vacancy_down; | |
10296 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
10297 | otv->vacancy = td->table_vacancy.vacancy; | |
10298 | ||
10299 | otd = ofpbuf_at_assert(b, start_otd, sizeof *otd); | |
10300 | otd->length = htons(b->size - start_otd); | |
10301 | otd->table_id = td->table_id; | |
10302 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
10303 | td->eviction, td->vacancy, | |
10304 | version); | |
10305 | } | |
10306 | ||
10307 | /* Converts the abstract form of a "table status" message in '*ts' into an | |
10308 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
10309 | * a buffer owned by the caller. */ | |
10310 | struct ofpbuf * | |
10311 | ofputil_encode_table_status(const struct ofputil_table_status *ts, | |
10312 | enum ofputil_protocol protocol) | |
10313 | { | |
10314 | enum ofp_version version; | |
10315 | struct ofpbuf *b; | |
10316 | ||
10317 | version = ofputil_protocol_to_ofp_version(protocol); | |
10318 | if (version >= OFP14_VERSION) { | |
10319 | enum ofpraw raw; | |
10320 | struct ofp14_table_status *ots; | |
10321 | ||
10322 | raw = OFPRAW_OFPT14_TABLE_STATUS; | |
10323 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
10324 | ots = ofpbuf_put_zeros(b, sizeof *ots); | |
10325 | ots->reason = ts->reason; | |
10326 | ofputil_put_ofp14_table_desc(&ts->desc, b, version); | |
10327 | ofpmsg_update_length(b); | |
10328 | return b; | |
10329 | } else { | |
10330 | return NULL; | |
10331 | } | |
10332 | } | |
10333 | ||
10334 | /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form | |
10335 | * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
10336 | enum ofperr | |
10337 | ofputil_decode_table_status(const struct ofp_header *oh, | |
10338 | struct ofputil_table_status *ts) | |
10339 | { | |
10340 | const struct ofp14_table_status *ots; | |
10341 | struct ofpbuf b; | |
10342 | enum ofperr error; | |
10343 | enum ofpraw raw; | |
10344 | ||
10345 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
10346 | raw = ofpraw_pull_assert(&b); | |
10347 | ots = ofpbuf_pull(&b, sizeof *ots); | |
10348 | ||
10349 | if (raw == OFPRAW_OFPT14_TABLE_STATUS) { | |
10350 | if (ots->reason != OFPTR_VACANCY_DOWN | |
10351 | && ots->reason != OFPTR_VACANCY_UP) { | |
10352 | return OFPERR_OFPBPC_BAD_VALUE; | |
10353 | } | |
10354 | ts->reason = ots->reason; | |
10355 | ||
10356 | error = ofputil_decode_table_desc(&b, &ts->desc, oh->version); | |
10357 | return error; | |
10358 | } else { | |
10359 | return OFPERR_OFPBRC_BAD_VERSION; | |
10360 | } | |
10361 | ||
10362 | return 0; | |
10363 | } |