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Commit | Line | Data |
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6a885fd0 | 1 | /* |
cb22974d | 2 | * Copyright (c) 2011, 2012, 2013 Nicira, Inc. |
6a885fd0 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | ||
19 | #include "meta-flow.h" | |
20 | ||
6a885fd0 BP |
21 | #include <errno.h> |
22 | #include <limits.h> | |
23 | #include <netinet/icmp6.h> | |
24 | #include <netinet/ip6.h> | |
25 | ||
26 | #include "classifier.h" | |
27 | #include "dynamic-string.h" | |
816fd533 | 28 | #include "ofp-errors.h" |
6a885fd0 BP |
29 | #include "ofp-util.h" |
30 | #include "packets.h" | |
31 | #include "random.h" | |
32 | #include "shash.h" | |
33 | #include "socket-util.h" | |
34 | #include "unaligned.h" | |
816fd533 BP |
35 | #include "vlog.h" |
36 | ||
37 | VLOG_DEFINE_THIS_MODULE(meta_flow); | |
6a885fd0 BP |
38 | |
39 | #define MF_FIELD_SIZES(MEMBER) \ | |
40 | sizeof ((union mf_value *)0)->MEMBER, \ | |
41 | 8 * sizeof ((union mf_value *)0)->MEMBER | |
42 | ||
43 | static const struct mf_field mf_fields[MFF_N_IDS] = { | |
44 | /* ## -------- ## */ | |
45 | /* ## metadata ## */ | |
46 | /* ## -------- ## */ | |
47 | ||
48 | { | |
49 | MFF_TUN_ID, "tun_id", NULL, | |
50 | MF_FIELD_SIZES(be64), | |
0bdc4bec | 51 | MFM_FULLY, |
6a885fd0 BP |
52 | MFS_HEXADECIMAL, |
53 | MFP_NONE, | |
28da1f8f BP |
54 | true, |
55 | NXM_NX_TUN_ID, "NXM_NX_TUN_ID", | |
2f2eb46c | 56 | OXM_OF_TUNNEL_ID, "OXM_OF_TUNNEL_ID", |
4fe3445a PS |
57 | }, { |
58 | MFF_TUN_SRC, "tun_src", NULL, | |
59 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 60 | MFM_FULLY, |
4fe3445a PS |
61 | MFS_IPV4, |
62 | MFP_NONE, | |
0ad90c84 JR |
63 | true, |
64 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
65 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
4fe3445a PS |
66 | }, { |
67 | MFF_TUN_DST, "tun_dst", NULL, | |
68 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 69 | MFM_FULLY, |
4fe3445a PS |
70 | MFS_IPV4, |
71 | MFP_NONE, | |
0ad90c84 JR |
72 | true, |
73 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
74 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
4fe3445a PS |
75 | }, { |
76 | MFF_TUN_FLAGS, "tun_flags", NULL, | |
77 | MF_FIELD_SIZES(be16), | |
78 | MFM_NONE, | |
79 | MFS_TNL_FLAGS, | |
80 | MFP_NONE, | |
81 | false, | |
82 | 0, NULL, | |
83 | 0, NULL, | |
84 | }, { | |
85 | MFF_TUN_TOS, "tun_tos", NULL, | |
86 | MF_FIELD_SIZES(u8), | |
87 | MFM_NONE, | |
88 | MFS_DECIMAL, | |
89 | MFP_NONE, | |
90 | false, | |
91 | 0, NULL, | |
92 | 0, NULL, | |
93 | }, { | |
94 | MFF_TUN_TTL, "tun_ttl", NULL, | |
95 | MF_FIELD_SIZES(u8), | |
96 | MFM_NONE, | |
97 | MFS_DECIMAL, | |
98 | MFP_NONE, | |
99 | false, | |
100 | 0, NULL, | |
101 | 0, NULL, | |
969fc56c JS |
102 | }, { |
103 | MFF_METADATA, "metadata", NULL, | |
104 | MF_FIELD_SIZES(be64), | |
0bdc4bec | 105 | MFM_FULLY, |
969fc56c JS |
106 | MFS_HEXADECIMAL, |
107 | MFP_NONE, | |
108 | true, | |
109 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
110 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
6a885fd0 BP |
111 | }, { |
112 | MFF_IN_PORT, "in_port", NULL, | |
113 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 114 | MFM_NONE, |
6a885fd0 BP |
115 | MFS_OFP_PORT, |
116 | MFP_NONE, | |
557323cd | 117 | true, |
28da1f8f | 118 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
72333065 JR |
119 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
120 | }, { | |
121 | MFF_IN_PORT_OXM, "in_port_oxm", NULL, | |
122 | MF_FIELD_SIZES(be32), | |
123 | MFM_NONE, | |
124 | MFS_OFP_PORT_OXM, | |
125 | MFP_NONE, | |
126 | true, | |
127 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", | |
36f3999b | 128 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", |
1b567fb9 AA |
129 | }, { |
130 | MFF_SKB_PRIORITY, "skb_priority", NULL, | |
131 | MF_FIELD_SIZES(be32), | |
132 | MFM_NONE, | |
133 | MFS_HEXADECIMAL, | |
134 | MFP_NONE, | |
135 | false, | |
136 | 0, NULL, | |
137 | 0, NULL, | |
138 | }, { | |
139 | MFF_SKB_MARK, "skb_mark", NULL, | |
140 | MF_FIELD_SIZES(be32), | |
141 | MFM_NONE, | |
142 | MFS_HEXADECIMAL, | |
143 | MFP_NONE, | |
144 | false, | |
145 | 0, NULL, | |
146 | 0, NULL, | |
6a885fd0 BP |
147 | }, |
148 | ||
149 | #define REGISTER(IDX) \ | |
150 | { \ | |
151 | MFF_REG##IDX, "reg" #IDX, NULL, \ | |
152 | MF_FIELD_SIZES(be32), \ | |
0bdc4bec | 153 | MFM_FULLY, \ |
6a885fd0 BP |
154 | MFS_HEXADECIMAL, \ |
155 | MFP_NONE, \ | |
28da1f8f | 156 | true, \ |
b5e5143b BP |
157 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ |
158 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ | |
6a885fd0 BP |
159 | } |
160 | #if FLOW_N_REGS > 0 | |
161 | REGISTER(0), | |
162 | #endif | |
163 | #if FLOW_N_REGS > 1 | |
164 | REGISTER(1), | |
165 | #endif | |
166 | #if FLOW_N_REGS > 2 | |
167 | REGISTER(2), | |
168 | #endif | |
169 | #if FLOW_N_REGS > 3 | |
170 | REGISTER(3), | |
171 | #endif | |
172 | #if FLOW_N_REGS > 4 | |
d2c0fed9 JP |
173 | REGISTER(4), |
174 | #endif | |
175 | #if FLOW_N_REGS > 5 | |
e9358af6 EJ |
176 | REGISTER(5), |
177 | #endif | |
178 | #if FLOW_N_REGS > 6 | |
179 | REGISTER(6), | |
180 | #endif | |
181 | #if FLOW_N_REGS > 7 | |
182 | REGISTER(7), | |
183 | #endif | |
184 | #if FLOW_N_REGS > 8 | |
6a885fd0 BP |
185 | #error |
186 | #endif | |
187 | ||
188 | /* ## -- ## */ | |
189 | /* ## L2 ## */ | |
190 | /* ## -- ## */ | |
191 | ||
192 | { | |
193 | MFF_ETH_SRC, "eth_src", "dl_src", | |
194 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 195 | MFM_FULLY, |
6a885fd0 BP |
196 | MFS_ETHERNET, |
197 | MFP_NONE, | |
28da1f8f BP |
198 | true, |
199 | NXM_OF_ETH_SRC, "NXM_OF_ETH_SRC", | |
36f3999b | 200 | OXM_OF_ETH_SRC, "OXM_OF_ETH_SRC", |
6a885fd0 BP |
201 | }, { |
202 | MFF_ETH_DST, "eth_dst", "dl_dst", | |
203 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 204 | MFM_FULLY, |
6a885fd0 BP |
205 | MFS_ETHERNET, |
206 | MFP_NONE, | |
28da1f8f BP |
207 | true, |
208 | NXM_OF_ETH_DST, "NXM_OF_ETH_DST", | |
36f3999b | 209 | OXM_OF_ETH_DST, "OXM_OF_ETH_DST", |
6a885fd0 BP |
210 | }, { |
211 | MFF_ETH_TYPE, "eth_type", "dl_type", | |
212 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 213 | MFM_NONE, |
6a885fd0 BP |
214 | MFS_HEXADECIMAL, |
215 | MFP_NONE, | |
28da1f8f BP |
216 | false, |
217 | NXM_OF_ETH_TYPE, "NXM_OF_ETH_TYPE", | |
36f3999b | 218 | OXM_OF_ETH_TYPE, "OXM_OF_ETH_TYPE", |
6a885fd0 BP |
219 | }, |
220 | ||
221 | { | |
222 | MFF_VLAN_TCI, "vlan_tci", NULL, | |
223 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 224 | MFM_FULLY, |
6a885fd0 BP |
225 | MFS_HEXADECIMAL, |
226 | MFP_NONE, | |
28da1f8f BP |
227 | true, |
228 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", | |
b5e5143b | 229 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", |
6a885fd0 | 230 | }, { |
441c57a9 | 231 | MFF_DL_VLAN, "dl_vlan", NULL, |
6a885fd0 | 232 | sizeof(ovs_be16), 12, |
0bdc4bec | 233 | MFM_NONE, |
6a885fd0 BP |
234 | MFS_DECIMAL, |
235 | MFP_NONE, | |
28da1f8f | 236 | true, |
cc34bc8c BP |
237 | 0, NULL, |
238 | 0, NULL, | |
239 | }, { | |
240 | MFF_VLAN_VID, "vlan_vid", NULL, | |
241 | sizeof(ovs_be16), 12, | |
0bdc4bec | 242 | MFM_FULLY, |
cc34bc8c BP |
243 | MFS_DECIMAL, |
244 | MFP_NONE, | |
245 | true, | |
b5e5143b | 246 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
36f3999b | 247 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
6a885fd0 | 248 | }, { |
441c57a9 | 249 | MFF_DL_VLAN_PCP, "dl_vlan_pcp", NULL, |
6a885fd0 | 250 | 1, 3, |
0bdc4bec | 251 | MFM_NONE, |
6a885fd0 BP |
252 | MFS_DECIMAL, |
253 | MFP_NONE, | |
28da1f8f | 254 | true, |
cc34bc8c BP |
255 | 0, NULL, |
256 | 0, NULL, | |
257 | }, { | |
258 | MFF_VLAN_PCP, "vlan_pcp", NULL, | |
259 | 1, 3, | |
0bdc4bec | 260 | MFM_NONE, |
cc34bc8c | 261 | MFS_DECIMAL, |
8069b0da | 262 | MFP_VLAN_VID, |
cc34bc8c | 263 | true, |
b5e5143b | 264 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
36f3999b | 265 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
6a885fd0 BP |
266 | }, |
267 | ||
b02475c5 SH |
268 | /* ## ---- ## */ |
269 | /* ## L2.5 ## */ | |
270 | /* ## ---- ## */ | |
271 | { | |
272 | MFF_MPLS_LABEL, "mpls_label", NULL, | |
273 | 4, 20, | |
274 | MFM_NONE, | |
275 | MFS_DECIMAL, | |
276 | MFP_MPLS, | |
277 | true, | |
278 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
279 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
280 | }, { | |
281 | MFF_MPLS_TC, "mpls_tc", NULL, | |
282 | 1, 3, | |
283 | MFM_NONE, | |
284 | MFS_DECIMAL, | |
285 | MFP_MPLS, | |
286 | true, | |
287 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
288 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
289 | }, { | |
290 | MFF_MPLS_BOS, "mpls_bos", NULL, | |
291 | 1, 1, | |
292 | MFM_NONE, | |
293 | MFS_DECIMAL, | |
294 | MFP_MPLS, | |
295 | false, | |
296 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
297 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
298 | }, | |
299 | ||
6a885fd0 BP |
300 | /* ## -- ## */ |
301 | /* ## L3 ## */ | |
302 | /* ## -- ## */ | |
303 | ||
304 | { | |
305 | MFF_IPV4_SRC, "ip_src", "nw_src", | |
306 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 307 | MFM_FULLY, |
6a885fd0 BP |
308 | MFS_IPV4, |
309 | MFP_IPV4, | |
28da1f8f BP |
310 | true, |
311 | NXM_OF_IP_SRC, "NXM_OF_IP_SRC", | |
36f3999b | 312 | OXM_OF_IPV4_SRC, "OXM_OF_IPV4_SRC", |
6a885fd0 BP |
313 | }, { |
314 | MFF_IPV4_DST, "ip_dst", "nw_dst", | |
315 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 316 | MFM_FULLY, |
6a885fd0 BP |
317 | MFS_IPV4, |
318 | MFP_IPV4, | |
28da1f8f BP |
319 | true, |
320 | NXM_OF_IP_DST, "NXM_OF_IP_DST", | |
36f3999b | 321 | OXM_OF_IPV4_DST, "OXM_OF_IPV4_DST", |
6a885fd0 BP |
322 | }, |
323 | ||
324 | { | |
325 | MFF_IPV6_SRC, "ipv6_src", NULL, | |
326 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 327 | MFM_FULLY, |
6a885fd0 BP |
328 | MFS_IPV6, |
329 | MFP_IPV6, | |
28da1f8f BP |
330 | true, |
331 | NXM_NX_IPV6_SRC, "NXM_NX_IPV6_SRC", | |
36f3999b | 332 | OXM_OF_IPV6_SRC, "OXM_OF_IPV6_SRC", |
6a885fd0 BP |
333 | }, { |
334 | MFF_IPV6_DST, "ipv6_dst", NULL, | |
335 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 336 | MFM_FULLY, |
6a885fd0 BP |
337 | MFS_IPV6, |
338 | MFP_IPV6, | |
28da1f8f BP |
339 | true, |
340 | NXM_NX_IPV6_DST, "NXM_NX_IPV6_DST", | |
36f3999b | 341 | OXM_OF_IPV6_DST, "OXM_OF_IPV6_DST", |
6a885fd0 | 342 | }, |
fa8223b7 JP |
343 | { |
344 | MFF_IPV6_LABEL, "ipv6_label", NULL, | |
345 | 4, 20, | |
0bdc4bec | 346 | MFM_FULLY, |
fa8223b7 JP |
347 | MFS_HEXADECIMAL, |
348 | MFP_IPV6, | |
28da1f8f BP |
349 | false, |
350 | NXM_NX_IPV6_LABEL, "NXM_NX_IPV6_LABEL", | |
36f3999b | 351 | OXM_OF_IPV6_FLABEL, "OXM_OF_IPV6_FLABEL", |
fa8223b7 | 352 | }, |
6a885fd0 BP |
353 | |
354 | { | |
355 | MFF_IP_PROTO, "nw_proto", NULL, | |
356 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 357 | MFM_NONE, |
6a885fd0 BP |
358 | MFS_DECIMAL, |
359 | MFP_IP_ANY, | |
28da1f8f BP |
360 | false, |
361 | NXM_OF_IP_PROTO, "NXM_OF_IP_PROTO", | |
36f3999b | 362 | OXM_OF_IP_PROTO, "OXM_OF_IP_PROTO", |
6a885fd0 | 363 | }, { |
530180fd | 364 | MFF_IP_DSCP, "nw_tos", NULL, |
6a885fd0 | 365 | MF_FIELD_SIZES(u8), |
0bdc4bec | 366 | MFM_NONE, |
6a885fd0 BP |
367 | MFS_DECIMAL, |
368 | MFP_IP_ANY, | |
28da1f8f | 369 | true, |
36f3999b | 370 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
1638b906 BP |
371 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
372 | }, { | |
373 | MFF_IP_DSCP_SHIFTED, "nw_tos_shifted", NULL, | |
374 | MF_FIELD_SIZES(u8), | |
375 | MFM_NONE, | |
376 | MFS_DECIMAL, | |
377 | MFP_IP_ANY, | |
378 | true, | |
379 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", | |
36f3999b | 380 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", |
530180fd JP |
381 | }, { |
382 | MFF_IP_ECN, "nw_ecn", NULL, | |
383 | 1, 2, | |
0bdc4bec | 384 | MFM_NONE, |
530180fd JP |
385 | MFS_DECIMAL, |
386 | MFP_IP_ANY, | |
28da1f8f BP |
387 | true, |
388 | NXM_NX_IP_ECN, "NXM_NX_IP_ECN", | |
36f3999b | 389 | OXM_OF_IP_ECN, "OXM_OF_IP_ECN", |
a61680c6 JP |
390 | }, { |
391 | MFF_IP_TTL, "nw_ttl", NULL, | |
392 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 393 | MFM_NONE, |
a61680c6 JP |
394 | MFS_DECIMAL, |
395 | MFP_IP_ANY, | |
28da1f8f | 396 | true, |
36f3999b | 397 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
b5e5143b | 398 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
7257b535 BP |
399 | }, { |
400 | MFF_IP_FRAG, "ip_frag", NULL, | |
401 | 1, 2, | |
0bdc4bec | 402 | MFM_FULLY, |
7257b535 BP |
403 | MFS_FRAG, |
404 | MFP_IP_ANY, | |
28da1f8f | 405 | false, |
36f3999b | 406 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
b5e5143b | 407 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
6a885fd0 BP |
408 | }, |
409 | ||
410 | { | |
411 | MFF_ARP_OP, "arp_op", NULL, | |
412 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 413 | MFM_NONE, |
6a885fd0 BP |
414 | MFS_DECIMAL, |
415 | MFP_ARP, | |
28da1f8f BP |
416 | false, |
417 | NXM_OF_ARP_OP, "NXM_OF_ARP_OP", | |
36f3999b | 418 | OXM_OF_ARP_OP, "OXM_OF_ARP_OP", |
6a885fd0 BP |
419 | }, { |
420 | MFF_ARP_SPA, "arp_spa", NULL, | |
421 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 422 | MFM_FULLY, |
6a885fd0 BP |
423 | MFS_IPV4, |
424 | MFP_ARP, | |
28da1f8f BP |
425 | false, |
426 | NXM_OF_ARP_SPA, "NXM_OF_ARP_SPA", | |
36f3999b | 427 | OXM_OF_ARP_SPA, "OXM_OF_ARP_SPA", |
6a885fd0 BP |
428 | }, { |
429 | MFF_ARP_TPA, "arp_tpa", NULL, | |
430 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 431 | MFM_FULLY, |
6a885fd0 BP |
432 | MFS_IPV4, |
433 | MFP_ARP, | |
28da1f8f BP |
434 | false, |
435 | NXM_OF_ARP_TPA, "NXM_OF_ARP_TPA", | |
36f3999b | 436 | OXM_OF_ARP_TPA, "OXM_OF_ARP_TPA", |
6a885fd0 BP |
437 | }, { |
438 | MFF_ARP_SHA, "arp_sha", NULL, | |
439 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 440 | MFM_FULLY, |
6a885fd0 BP |
441 | MFS_ETHERNET, |
442 | MFP_ARP, | |
28da1f8f BP |
443 | false, |
444 | NXM_NX_ARP_SHA, "NXM_NX_ARP_SHA", | |
36f3999b | 445 | OXM_OF_ARP_SHA, "OXM_OF_ARP_SHA", |
6a885fd0 BP |
446 | }, { |
447 | MFF_ARP_THA, "arp_tha", NULL, | |
448 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 449 | MFM_FULLY, |
6a885fd0 BP |
450 | MFS_ETHERNET, |
451 | MFP_ARP, | |
28da1f8f BP |
452 | false, |
453 | NXM_NX_ARP_THA, "NXM_NX_ARP_THA", | |
36f3999b | 454 | OXM_OF_ARP_THA, "OXM_OF_ARP_THA", |
6a885fd0 BP |
455 | }, |
456 | ||
457 | /* ## -- ## */ | |
458 | /* ## L4 ## */ | |
459 | /* ## -- ## */ | |
460 | ||
461 | { | |
462 | MFF_TCP_SRC, "tcp_src", "tp_src", | |
463 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 464 | MFM_FULLY, |
6a885fd0 BP |
465 | MFS_DECIMAL, |
466 | MFP_TCP, | |
28da1f8f BP |
467 | true, |
468 | NXM_OF_TCP_SRC, "NXM_OF_TCP_SRC", | |
36f3999b | 469 | OXM_OF_TCP_SRC, "OXM_OF_TCP_SRC", |
6a885fd0 BP |
470 | }, { |
471 | MFF_TCP_DST, "tcp_dst", "tp_dst", | |
472 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 473 | MFM_FULLY, |
6a885fd0 BP |
474 | MFS_DECIMAL, |
475 | MFP_TCP, | |
28da1f8f BP |
476 | true, |
477 | NXM_OF_TCP_DST, "NXM_OF_TCP_DST", | |
36f3999b | 478 | OXM_OF_TCP_DST, "OXM_OF_TCP_DST", |
6a885fd0 BP |
479 | }, |
480 | ||
481 | { | |
482 | MFF_UDP_SRC, "udp_src", NULL, | |
483 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 484 | MFM_FULLY, |
6a885fd0 BP |
485 | MFS_DECIMAL, |
486 | MFP_UDP, | |
28da1f8f BP |
487 | true, |
488 | NXM_OF_UDP_SRC, "NXM_OF_UDP_SRC", | |
36f3999b | 489 | OXM_OF_UDP_SRC, "OXM_OF_UDP_SRC", |
6a885fd0 BP |
490 | }, { |
491 | MFF_UDP_DST, "udp_dst", NULL, | |
492 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 493 | MFM_FULLY, |
6a885fd0 BP |
494 | MFS_DECIMAL, |
495 | MFP_UDP, | |
28da1f8f BP |
496 | true, |
497 | NXM_OF_UDP_DST, "NXM_OF_UDP_DST", | |
36f3999b | 498 | OXM_OF_UDP_DST, "OXM_OF_UDP_DST", |
6a885fd0 BP |
499 | }, |
500 | ||
501 | { | |
268a95e0 | 502 | MFF_ICMPV4_TYPE, "icmp_type", NULL, |
6a885fd0 | 503 | MF_FIELD_SIZES(u8), |
0bdc4bec | 504 | MFM_NONE, |
6a885fd0 | 505 | MFS_DECIMAL, |
268a95e0 | 506 | MFP_ICMPV4, |
28da1f8f BP |
507 | false, |
508 | NXM_OF_ICMP_TYPE, "NXM_OF_ICMP_TYPE", | |
36f3999b | 509 | OXM_OF_ICMPV4_TYPE, "OXM_OF_ICMPV4_TYPE", |
6a885fd0 | 510 | }, { |
268a95e0 | 511 | MFF_ICMPV4_CODE, "icmp_code", NULL, |
6a885fd0 | 512 | MF_FIELD_SIZES(u8), |
0bdc4bec | 513 | MFM_NONE, |
6a885fd0 | 514 | MFS_DECIMAL, |
268a95e0 | 515 | MFP_ICMPV4, |
28da1f8f BP |
516 | false, |
517 | NXM_OF_ICMP_CODE, "NXM_OF_ICMP_CODE", | |
36f3999b | 518 | OXM_OF_ICMPV4_CODE, "OXM_OF_ICMPV4_CODE", |
28da1f8f BP |
519 | }, |
520 | ||
521 | { | |
268a95e0 BP |
522 | MFF_ICMPV6_TYPE, "icmpv6_type", NULL, |
523 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 524 | MFM_NONE, |
268a95e0 BP |
525 | MFS_DECIMAL, |
526 | MFP_ICMPV6, | |
28da1f8f BP |
527 | false, |
528 | NXM_NX_ICMPV6_TYPE, "NXM_NX_ICMPV6_TYPE", | |
36f3999b | 529 | OXM_OF_ICMPV6_TYPE, "OXM_OF_ICMPV6_TYPE", |
268a95e0 BP |
530 | }, { |
531 | MFF_ICMPV6_CODE, "icmpv6_code", NULL, | |
532 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 533 | MFM_NONE, |
268a95e0 BP |
534 | MFS_DECIMAL, |
535 | MFP_ICMPV6, | |
28da1f8f BP |
536 | false, |
537 | NXM_NX_ICMPV6_CODE, "NXM_NX_ICMPV6_CODE", | |
36f3999b | 538 | OXM_OF_ICMPV6_CODE, "OXM_OF_ICMPV6_CODE", |
6a885fd0 BP |
539 | }, |
540 | ||
541 | /* ## ---- ## */ | |
542 | /* ## L"5" ## */ | |
543 | /* ## ---- ## */ | |
544 | ||
545 | { | |
546 | MFF_ND_TARGET, "nd_target", NULL, | |
547 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 548 | MFM_FULLY, |
6a885fd0 BP |
549 | MFS_IPV6, |
550 | MFP_ND, | |
28da1f8f BP |
551 | false, |
552 | NXM_NX_ND_TARGET, "NXM_NX_ND_TARGET", | |
36f3999b | 553 | OXM_OF_IPV6_ND_TARGET, "OXM_OF_IPV6_ND_TARGET", |
6a885fd0 BP |
554 | }, { |
555 | MFF_ND_SLL, "nd_sll", NULL, | |
556 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 557 | MFM_FULLY, |
6a885fd0 BP |
558 | MFS_ETHERNET, |
559 | MFP_ND_SOLICIT, | |
28da1f8f BP |
560 | false, |
561 | NXM_NX_ND_SLL, "NXM_NX_ND_SLL", | |
36f3999b | 562 | OXM_OF_IPV6_ND_SLL, "OXM_OF_IPV6_ND_SLL", |
6a885fd0 BP |
563 | }, { |
564 | MFF_ND_TLL, "nd_tll", NULL, | |
565 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 566 | MFM_FULLY, |
6a885fd0 BP |
567 | MFS_ETHERNET, |
568 | MFP_ND_ADVERT, | |
28da1f8f BP |
569 | false, |
570 | NXM_NX_ND_TLL, "NXM_NX_ND_TLL", | |
36f3999b | 571 | OXM_OF_IPV6_ND_TLL, "OXM_OF_IPV6_ND_TLL", |
6a885fd0 BP |
572 | } |
573 | }; | |
574 | ||
b5e5143b | 575 | /* Maps an NXM or OXM header value to an mf_field. */ |
28da1f8f | 576 | struct nxm_field { |
b5e5143b BP |
577 | struct hmap_node hmap_node; /* In 'all_fields' hmap. */ |
578 | uint32_t header; /* NXM or OXM header value. */ | |
28da1f8f BP |
579 | const struct mf_field *mf; |
580 | }; | |
581 | ||
b5e5143b BP |
582 | /* Contains 'struct nxm_field's. */ |
583 | static struct hmap all_fields = HMAP_INITIALIZER(&all_fields); | |
28da1f8f | 584 | |
816fd533 BP |
585 | /* Rate limit for parse errors. These always indicate a bug in an OpenFlow |
586 | * controller and so there's not much point in showing a lot of them. */ | |
587 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
588 | ||
b5e5143b BP |
589 | const struct mf_field *mf_from_nxm_header__(uint32_t header); |
590 | ||
6a885fd0 BP |
591 | /* Returns the field with the given 'id'. */ |
592 | const struct mf_field * | |
593 | mf_from_id(enum mf_field_id id) | |
594 | { | |
cb22974d | 595 | ovs_assert((unsigned int) id < MFF_N_IDS); |
6a885fd0 BP |
596 | return &mf_fields[id]; |
597 | } | |
598 | ||
599 | /* Returns the field with the given 'name', or a null pointer if no field has | |
600 | * that name. */ | |
601 | const struct mf_field * | |
602 | mf_from_name(const char *name) | |
603 | { | |
604 | static struct shash mf_by_name = SHASH_INITIALIZER(&mf_by_name); | |
605 | ||
606 | if (shash_is_empty(&mf_by_name)) { | |
607 | const struct mf_field *mf; | |
608 | ||
609 | for (mf = mf_fields; mf < &mf_fields[MFF_N_IDS]; mf++) { | |
610 | shash_add_once(&mf_by_name, mf->name, mf); | |
611 | if (mf->extra_name) { | |
612 | shash_add_once(&mf_by_name, mf->extra_name, mf); | |
613 | } | |
614 | } | |
615 | } | |
616 | ||
617 | return shash_find_data(&mf_by_name, name); | |
618 | } | |
619 | ||
28da1f8f | 620 | static void |
b5e5143b | 621 | add_nxm_field(uint32_t header, const struct mf_field *mf) |
28da1f8f BP |
622 | { |
623 | struct nxm_field *f; | |
624 | ||
625 | f = xmalloc(sizeof *f); | |
b5e5143b BP |
626 | hmap_insert(&all_fields, &f->hmap_node, hash_int(header, 0)); |
627 | f->header = header; | |
28da1f8f BP |
628 | f->mf = mf; |
629 | } | |
630 | ||
b5ae8913 SH |
631 | static void |
632 | nxm_init_add_field(const struct mf_field *mf, uint32_t header) | |
633 | { | |
b5e5143b | 634 | if (header) { |
cb22974d | 635 | ovs_assert(!mf_from_nxm_header__(header)); |
b5e5143b BP |
636 | add_nxm_field(header, mf); |
637 | if (mf->maskable != MFM_NONE) { | |
638 | add_nxm_field(NXM_MAKE_WILD_HEADER(header), mf); | |
639 | } | |
b5ae8913 | 640 | } |
b5ae8913 | 641 | } |
b5ae8913 | 642 | |
28da1f8f BP |
643 | static void |
644 | nxm_init(void) | |
645 | { | |
646 | const struct mf_field *mf; | |
647 | ||
648 | for (mf = mf_fields; mf < &mf_fields[MFF_N_IDS]; mf++) { | |
b5ae8913 | 649 | nxm_init_add_field(mf, mf->nxm_header); |
b5e5143b BP |
650 | if (mf->oxm_header != mf->nxm_header) { |
651 | nxm_init_add_field(mf, mf->oxm_header); | |
652 | } | |
28da1f8f | 653 | } |
28da1f8f BP |
654 | } |
655 | ||
656 | const struct mf_field * | |
657 | mf_from_nxm_header(uint32_t header) | |
658 | { | |
b5e5143b | 659 | if (hmap_is_empty(&all_fields)) { |
28da1f8f BP |
660 | nxm_init(); |
661 | } | |
b5e5143b BP |
662 | return mf_from_nxm_header__(header); |
663 | } | |
28da1f8f | 664 | |
b5e5143b BP |
665 | const struct mf_field * |
666 | mf_from_nxm_header__(uint32_t header) | |
667 | { | |
668 | const struct nxm_field *f; | |
669 | ||
670 | HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0), &all_fields) { | |
671 | if (f->header == header) { | |
28da1f8f BP |
672 | return f->mf; |
673 | } | |
674 | } | |
675 | ||
676 | return NULL; | |
677 | } | |
678 | ||
6a885fd0 BP |
679 | /* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc' |
680 | * specifies at least one bit in the field. | |
681 | * | |
682 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
683 | * meets 'mf''s prerequisites. */ | |
684 | bool | |
685 | mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) | |
686 | { | |
687 | switch (mf->id) { | |
4fe3445a | 688 | case MFF_TUN_SRC: |
0ad90c84 | 689 | return !wc->masks.tunnel.ip_src; |
4fe3445a | 690 | case MFF_TUN_DST: |
0ad90c84 JR |
691 | return !wc->masks.tunnel.ip_dst; |
692 | case MFF_TUN_ID: | |
4fe3445a PS |
693 | case MFF_TUN_TOS: |
694 | case MFF_TUN_TTL: | |
695 | case MFF_TUN_FLAGS: | |
296e07ac | 696 | return !wc->masks.tunnel.tun_id; |
969fc56c | 697 | case MFF_METADATA: |
26720e24 | 698 | return !wc->masks.metadata; |
0bdc4bec | 699 | case MFF_IN_PORT: |
72333065 | 700 | case MFF_IN_PORT_OXM: |
4e022ec0 | 701 | return !wc->masks.in_port.ofp_port; |
1b567fb9 AA |
702 | case MFF_SKB_PRIORITY: |
703 | return !wc->masks.skb_priority; | |
704 | case MFF_SKB_MARK: | |
705 | return !wc->masks.skb_mark; | |
0d7e2fe4 | 706 | CASE_MFF_REGS: |
26720e24 | 707 | return !wc->masks.regs[mf->id - MFF_REG0]; |
6a885fd0 | 708 | |
73c0ce34 | 709 | case MFF_ETH_SRC: |
26720e24 | 710 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 711 | case MFF_ETH_DST: |
26720e24 | 712 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 713 | case MFF_ETH_TYPE: |
26720e24 | 714 | return !wc->masks.dl_type; |
6a885fd0 | 715 | |
e878338b SH |
716 | case MFF_ARP_SHA: |
717 | case MFF_ND_SLL: | |
26720e24 | 718 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
719 | |
720 | case MFF_ARP_THA: | |
721 | case MFF_ND_TLL: | |
26720e24 | 722 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 723 | |
6a885fd0 | 724 | case MFF_VLAN_TCI: |
26720e24 | 725 | return !wc->masks.vlan_tci; |
441c57a9 | 726 | case MFF_DL_VLAN: |
26720e24 | 727 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 728 | case MFF_VLAN_VID: |
26720e24 | 729 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 730 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 731 | case MFF_VLAN_PCP: |
26720e24 | 732 | return !(wc->masks.vlan_tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 733 | |
b02475c5 SH |
734 | case MFF_MPLS_LABEL: |
735 | return !(wc->masks.mpls_lse & htonl(MPLS_LABEL_MASK)); | |
736 | case MFF_MPLS_TC: | |
737 | return !(wc->masks.mpls_lse & htonl(MPLS_TC_MASK)); | |
738 | case MFF_MPLS_BOS: | |
739 | return !(wc->masks.mpls_lse & htonl(MPLS_BOS_MASK)); | |
740 | ||
6a885fd0 | 741 | case MFF_IPV4_SRC: |
26720e24 | 742 | return !wc->masks.nw_src; |
6a885fd0 | 743 | case MFF_IPV4_DST: |
26720e24 | 744 | return !wc->masks.nw_dst; |
6a885fd0 BP |
745 | |
746 | case MFF_IPV6_SRC: | |
26720e24 | 747 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 748 | case MFF_IPV6_DST: |
26720e24 | 749 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 750 | |
32455024 | 751 | case MFF_IPV6_LABEL: |
26720e24 | 752 | return !wc->masks.ipv6_label; |
32455024 | 753 | |
851d3105 | 754 | case MFF_IP_PROTO: |
26720e24 | 755 | return !wc->masks.nw_proto; |
5d9499c4 | 756 | case MFF_IP_DSCP: |
1638b906 | 757 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 758 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 759 | case MFF_IP_ECN: |
26720e24 | 760 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 761 | case MFF_IP_TTL: |
26720e24 | 762 | return !wc->masks.nw_ttl; |
5d9499c4 | 763 | |
47284b1f | 764 | case MFF_ND_TARGET: |
26720e24 | 765 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 766 | |
7257b535 | 767 | case MFF_IP_FRAG: |
26720e24 | 768 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 769 | |
851d3105 | 770 | case MFF_ARP_OP: |
26720e24 | 771 | return !wc->masks.nw_proto; |
6a885fd0 | 772 | case MFF_ARP_SPA: |
26720e24 | 773 | return !wc->masks.nw_src; |
6a885fd0 | 774 | case MFF_ARP_TPA: |
26720e24 | 775 | return !wc->masks.nw_dst; |
6a885fd0 | 776 | |
73f33563 BP |
777 | case MFF_TCP_SRC: |
778 | case MFF_UDP_SRC: | |
779 | case MFF_ICMPV4_TYPE: | |
780 | case MFF_ICMPV6_TYPE: | |
26720e24 | 781 | return !wc->masks.tp_src; |
73f33563 BP |
782 | case MFF_TCP_DST: |
783 | case MFF_UDP_DST: | |
784 | case MFF_ICMPV4_CODE: | |
785 | case MFF_ICMPV6_CODE: | |
26720e24 | 786 | return !wc->masks.tp_dst; |
73f33563 | 787 | |
6a885fd0 BP |
788 | case MFF_N_IDS: |
789 | default: | |
790 | NOT_REACHED(); | |
791 | } | |
792 | } | |
793 | ||
794 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
795 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
796 | * purposes, or to 0 if it is wildcarded. | |
797 | * | |
798 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
799 | * meets 'mf''s prerequisites. */ | |
800 | void | |
801 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
802 | union mf_value *mask) | |
803 | { | |
fb15feb0 | 804 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
805 | } |
806 | ||
807 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
808 | * if the mask is valid, false otherwise. */ | |
809 | bool | |
810 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
811 | { | |
812 | switch (mf->maskable) { | |
813 | case MFM_NONE: | |
814 | return (is_all_zeros((const uint8_t *) mask, mf->n_bytes) || | |
815 | is_all_ones((const uint8_t *) mask, mf->n_bytes)); | |
816 | ||
817 | case MFM_FULLY: | |
818 | return true; | |
6a885fd0 BP |
819 | } |
820 | ||
821 | NOT_REACHED(); | |
822 | } | |
823 | ||
6a885fd0 BP |
824 | static bool |
825 | is_icmpv4(const struct flow *flow) | |
826 | { | |
827 | return (flow->dl_type == htons(ETH_TYPE_IP) | |
828 | && flow->nw_proto == IPPROTO_ICMP); | |
829 | } | |
830 | ||
831 | static bool | |
832 | is_icmpv6(const struct flow *flow) | |
833 | { | |
834 | return (flow->dl_type == htons(ETH_TYPE_IPV6) | |
835 | && flow->nw_proto == IPPROTO_ICMPV6); | |
836 | } | |
837 | ||
838 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. */ | |
839 | bool | |
840 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow) | |
841 | { | |
842 | switch (mf->prereqs) { | |
843 | case MFP_NONE: | |
844 | return true; | |
845 | ||
846 | case MFP_ARP: | |
8087f5ff MM |
847 | return (flow->dl_type == htons(ETH_TYPE_ARP) || |
848 | flow->dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 BP |
849 | case MFP_IPV4: |
850 | return flow->dl_type == htons(ETH_TYPE_IP); | |
851 | case MFP_IPV6: | |
852 | return flow->dl_type == htons(ETH_TYPE_IPV6); | |
8069b0da | 853 | case MFP_VLAN_VID: |
5921e99a | 854 | return (flow->vlan_tci & htons(VLAN_CFI)) != 0; |
b02475c5 SH |
855 | case MFP_MPLS: |
856 | return eth_type_mpls(flow->dl_type); | |
6a885fd0 BP |
857 | case MFP_IP_ANY: |
858 | return is_ip_any(flow); | |
859 | ||
860 | case MFP_TCP: | |
861 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_TCP; | |
862 | case MFP_UDP: | |
863 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_UDP; | |
268a95e0 BP |
864 | case MFP_ICMPV4: |
865 | return is_icmpv4(flow); | |
6a885fd0 BP |
866 | case MFP_ICMPV6: |
867 | return is_icmpv6(flow); | |
6a885fd0 BP |
868 | |
869 | case MFP_ND: | |
870 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
871 | && flow->tp_dst == htons(0) |
872 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || | |
873 | flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
874 | case MFP_ND_SOLICIT: |
875 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
876 | && flow->tp_dst == htons(0) |
877 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT))); | |
6a885fd0 BP |
878 | case MFP_ND_ADVERT: |
879 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
880 | && flow->tp_dst == htons(0) |
881 | && (flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
882 | } |
883 | ||
884 | NOT_REACHED(); | |
885 | } | |
886 | ||
887 | /* Returns true if 'value' may be a valid value *as part of a masked match*, | |
888 | * false otherwise. | |
889 | * | |
890 | * A value is not rejected just because it is not valid for the field in | |
891 | * question, but only if it doesn't make sense to test the bits in question at | |
892 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
893 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
894 | * it is still legitimate to test just for those bits (see the documentation | |
895 | * for NXM_OF_VLAN_TCI in nicira-ext.h). On the other hand, there is never a | |
530180fd | 896 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
897 | bool |
898 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
899 | { | |
900 | switch (mf->id) { | |
901 | case MFF_TUN_ID: | |
4fe3445a PS |
902 | case MFF_TUN_SRC: |
903 | case MFF_TUN_DST: | |
904 | case MFF_TUN_TOS: | |
905 | case MFF_TUN_TTL: | |
906 | case MFF_TUN_FLAGS: | |
969fc56c | 907 | case MFF_METADATA: |
6a885fd0 | 908 | case MFF_IN_PORT: |
1b567fb9 AA |
909 | case MFF_SKB_PRIORITY: |
910 | case MFF_SKB_MARK: | |
0d7e2fe4 | 911 | CASE_MFF_REGS: |
6a885fd0 BP |
912 | case MFF_ETH_SRC: |
913 | case MFF_ETH_DST: | |
914 | case MFF_ETH_TYPE: | |
915 | case MFF_VLAN_TCI: | |
916 | case MFF_IPV4_SRC: | |
917 | case MFF_IPV4_DST: | |
918 | case MFF_IPV6_SRC: | |
919 | case MFF_IPV6_DST: | |
920 | case MFF_IP_PROTO: | |
a61680c6 | 921 | case MFF_IP_TTL: |
6a885fd0 BP |
922 | case MFF_ARP_SPA: |
923 | case MFF_ARP_TPA: | |
924 | case MFF_ARP_SHA: | |
925 | case MFF_ARP_THA: | |
926 | case MFF_TCP_SRC: | |
927 | case MFF_TCP_DST: | |
928 | case MFF_UDP_SRC: | |
929 | case MFF_UDP_DST: | |
268a95e0 BP |
930 | case MFF_ICMPV4_TYPE: |
931 | case MFF_ICMPV4_CODE: | |
932 | case MFF_ICMPV6_TYPE: | |
933 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
934 | case MFF_ND_TARGET: |
935 | case MFF_ND_SLL: | |
936 | case MFF_ND_TLL: | |
937 | return true; | |
938 | ||
72333065 | 939 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 940 | ofp_port_t port; |
72333065 JR |
941 | return !ofputil_port_from_ofp11(value->be32, &port); |
942 | } | |
943 | ||
530180fd | 944 | case MFF_IP_DSCP: |
7257b535 | 945 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
946 | case MFF_IP_DSCP_SHIFTED: |
947 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
948 | case MFF_IP_ECN: |
949 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 950 | case MFF_IP_FRAG: |
eadef313 | 951 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
6a885fd0 BP |
952 | |
953 | case MFF_ARP_OP: | |
954 | return !(value->be16 & htons(0xff00)); | |
955 | ||
441c57a9 | 956 | case MFF_DL_VLAN: |
6a885fd0 | 957 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
958 | case MFF_VLAN_VID: |
959 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 960 | |
441c57a9 | 961 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 962 | case MFF_VLAN_PCP: |
24016f5a | 963 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 964 | |
fa8223b7 JP |
965 | case MFF_IPV6_LABEL: |
966 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
967 | ||
b02475c5 SH |
968 | case MFF_MPLS_LABEL: |
969 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
970 | ||
971 | case MFF_MPLS_TC: | |
972 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
973 | ||
974 | case MFF_MPLS_BOS: | |
975 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
976 | ||
6a885fd0 BP |
977 | case MFF_N_IDS: |
978 | default: | |
979 | NOT_REACHED(); | |
980 | } | |
981 | } | |
982 | ||
983 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
984 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
985 | void | |
986 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
987 | union mf_value *value) | |
988 | { | |
989 | switch (mf->id) { | |
990 | case MFF_TUN_ID: | |
296e07ac | 991 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 992 | break; |
4fe3445a PS |
993 | case MFF_TUN_SRC: |
994 | value->be32 = flow->tunnel.ip_src; | |
995 | break; | |
996 | case MFF_TUN_DST: | |
997 | value->be32 = flow->tunnel.ip_dst; | |
998 | break; | |
999 | case MFF_TUN_FLAGS: | |
1000 | value->be16 = htons(flow->tunnel.flags); | |
1001 | break; | |
1002 | case MFF_TUN_TTL: | |
1003 | value->u8 = flow->tunnel.ip_ttl; | |
1004 | break; | |
1005 | case MFF_TUN_TOS: | |
1006 | value->u8 = flow->tunnel.ip_tos; | |
1007 | break; | |
1008 | ||
969fc56c JS |
1009 | case MFF_METADATA: |
1010 | value->be64 = flow->metadata; | |
1011 | break; | |
6a885fd0 BP |
1012 | |
1013 | case MFF_IN_PORT: | |
4e022ec0 | 1014 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 1015 | break; |
72333065 | 1016 | case MFF_IN_PORT_OXM: |
4e022ec0 | 1017 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 JR |
1018 | break; |
1019 | ||
1b567fb9 | 1020 | case MFF_SKB_PRIORITY: |
a81f0a44 | 1021 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
1022 | break; |
1023 | ||
1024 | case MFF_SKB_MARK: | |
a81f0a44 | 1025 | value->be32 = htonl(flow->skb_mark); |
1b567fb9 AA |
1026 | break; |
1027 | ||
0d7e2fe4 | 1028 | CASE_MFF_REGS: |
2f98b0b7 | 1029 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
1030 | break; |
1031 | ||
1032 | case MFF_ETH_SRC: | |
1033 | memcpy(value->mac, flow->dl_src, ETH_ADDR_LEN); | |
1034 | break; | |
1035 | ||
1036 | case MFF_ETH_DST: | |
1037 | memcpy(value->mac, flow->dl_dst, ETH_ADDR_LEN); | |
1038 | break; | |
1039 | ||
1040 | case MFF_ETH_TYPE: | |
1041 | value->be16 = flow->dl_type; | |
1042 | break; | |
1043 | ||
1044 | case MFF_VLAN_TCI: | |
1045 | value->be16 = flow->vlan_tci; | |
1046 | break; | |
1047 | ||
441c57a9 | 1048 | case MFF_DL_VLAN: |
6a885fd0 BP |
1049 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK); |
1050 | break; | |
cc34bc8c BP |
1051 | case MFF_VLAN_VID: |
1052 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI); | |
1053 | break; | |
6a885fd0 | 1054 | |
441c57a9 | 1055 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1056 | case MFF_VLAN_PCP: |
6a885fd0 BP |
1057 | value->u8 = vlan_tci_to_pcp(flow->vlan_tci); |
1058 | break; | |
1059 | ||
b02475c5 SH |
1060 | case MFF_MPLS_LABEL: |
1061 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse)); | |
1062 | break; | |
1063 | ||
1064 | case MFF_MPLS_TC: | |
1065 | value->u8 = mpls_lse_to_tc(flow->mpls_lse); | |
1066 | break; | |
1067 | ||
1068 | case MFF_MPLS_BOS: | |
1069 | value->u8 = mpls_lse_to_bos(flow->mpls_lse); | |
1070 | break; | |
1071 | ||
6a885fd0 BP |
1072 | case MFF_IPV4_SRC: |
1073 | value->be32 = flow->nw_src; | |
1074 | break; | |
1075 | ||
1076 | case MFF_IPV4_DST: | |
1077 | value->be32 = flow->nw_dst; | |
1078 | break; | |
1079 | ||
1080 | case MFF_IPV6_SRC: | |
1081 | value->ipv6 = flow->ipv6_src; | |
1082 | break; | |
1083 | ||
1084 | case MFF_IPV6_DST: | |
1085 | value->ipv6 = flow->ipv6_dst; | |
1086 | break; | |
1087 | ||
fa8223b7 JP |
1088 | case MFF_IPV6_LABEL: |
1089 | value->be32 = flow->ipv6_label; | |
1090 | break; | |
1091 | ||
6a885fd0 BP |
1092 | case MFF_IP_PROTO: |
1093 | value->u8 = flow->nw_proto; | |
1094 | break; | |
1095 | ||
530180fd | 1096 | case MFF_IP_DSCP: |
eadef313 | 1097 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
1098 | break; |
1099 | ||
1638b906 BP |
1100 | case MFF_IP_DSCP_SHIFTED: |
1101 | value->u8 = flow->nw_tos >> 2; | |
1102 | break; | |
1103 | ||
530180fd | 1104 | case MFF_IP_ECN: |
eadef313 | 1105 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
1106 | break; |
1107 | ||
a61680c6 JP |
1108 | case MFF_IP_TTL: |
1109 | value->u8 = flow->nw_ttl; | |
1110 | break; | |
1111 | ||
7257b535 | 1112 | case MFF_IP_FRAG: |
eadef313 | 1113 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
1114 | break; |
1115 | ||
1116 | case MFF_ARP_OP: | |
1117 | value->be16 = htons(flow->nw_proto); | |
1118 | break; | |
1119 | ||
1120 | case MFF_ARP_SPA: | |
1121 | value->be32 = flow->nw_src; | |
1122 | break; | |
1123 | ||
1124 | case MFF_ARP_TPA: | |
1125 | value->be32 = flow->nw_dst; | |
1126 | break; | |
1127 | ||
1128 | case MFF_ARP_SHA: | |
1129 | case MFF_ND_SLL: | |
1130 | memcpy(value->mac, flow->arp_sha, ETH_ADDR_LEN); | |
1131 | break; | |
1132 | ||
1133 | case MFF_ARP_THA: | |
1134 | case MFF_ND_TLL: | |
1135 | memcpy(value->mac, flow->arp_tha, ETH_ADDR_LEN); | |
1136 | break; | |
1137 | ||
1138 | case MFF_TCP_SRC: | |
6a885fd0 BP |
1139 | case MFF_UDP_SRC: |
1140 | value->be16 = flow->tp_src; | |
1141 | break; | |
1142 | ||
71baec06 | 1143 | case MFF_TCP_DST: |
6a885fd0 BP |
1144 | case MFF_UDP_DST: |
1145 | value->be16 = flow->tp_dst; | |
1146 | break; | |
1147 | ||
268a95e0 BP |
1148 | case MFF_ICMPV4_TYPE: |
1149 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
1150 | value->u8 = ntohs(flow->tp_src); |
1151 | break; | |
1152 | ||
268a95e0 BP |
1153 | case MFF_ICMPV4_CODE: |
1154 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1155 | value->u8 = ntohs(flow->tp_dst); |
1156 | break; | |
1157 | ||
1158 | case MFF_ND_TARGET: | |
1159 | value->ipv6 = flow->nd_target; | |
1160 | break; | |
1161 | ||
1162 | case MFF_N_IDS: | |
1163 | default: | |
1164 | NOT_REACHED(); | |
1165 | } | |
1166 | } | |
1167 | ||
81a76618 BP |
1168 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
1169 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
6a885fd0 BP |
1170 | * prerequisites. */ |
1171 | void | |
1172 | mf_set_value(const struct mf_field *mf, | |
81a76618 | 1173 | const union mf_value *value, struct match *match) |
6a885fd0 BP |
1174 | { |
1175 | switch (mf->id) { | |
1176 | case MFF_TUN_ID: | |
81a76618 | 1177 | match_set_tun_id(match, value->be64); |
6a885fd0 | 1178 | break; |
4fe3445a PS |
1179 | case MFF_TUN_SRC: |
1180 | match_set_tun_src(match, value->be32); | |
1181 | break; | |
1182 | case MFF_TUN_DST: | |
1183 | match_set_tun_dst(match, value->be32); | |
1184 | break; | |
1185 | case MFF_TUN_FLAGS: | |
1186 | match_set_tun_flags(match, ntohs(value->be16)); | |
1187 | break; | |
1188 | case MFF_TUN_TOS: | |
1189 | match_set_tun_tos(match, value->u8); | |
1190 | break; | |
1191 | case MFF_TUN_TTL: | |
1192 | match_set_tun_ttl(match, value->u8); | |
1193 | break; | |
1194 | ||
969fc56c | 1195 | case MFF_METADATA: |
81a76618 | 1196 | match_set_metadata(match, value->be64); |
969fc56c | 1197 | break; |
6a885fd0 BP |
1198 | |
1199 | case MFF_IN_PORT: | |
4e022ec0 | 1200 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
1201 | break; |
1202 | ||
72333065 | 1203 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1204 | ofp_port_t port; |
bc146369 | 1205 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
1206 | match_set_in_port(match, port); |
1207 | break; | |
1208 | } | |
1209 | ||
1b567fb9 AA |
1210 | case MFF_SKB_PRIORITY: |
1211 | match_set_skb_priority(match, ntohl(value->be32)); | |
1212 | break; | |
1213 | ||
1214 | case MFF_SKB_MARK: | |
1215 | match_set_skb_mark(match, ntohl(value->be32)); | |
1216 | break; | |
1217 | ||
0d7e2fe4 | 1218 | CASE_MFF_REGS: |
81a76618 | 1219 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 1220 | break; |
6a885fd0 BP |
1221 | |
1222 | case MFF_ETH_SRC: | |
81a76618 | 1223 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
1224 | break; |
1225 | ||
1226 | case MFF_ETH_DST: | |
81a76618 | 1227 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
1228 | break; |
1229 | ||
1230 | case MFF_ETH_TYPE: | |
81a76618 | 1231 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
1232 | break; |
1233 | ||
1234 | case MFF_VLAN_TCI: | |
81a76618 | 1235 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
1236 | break; |
1237 | ||
441c57a9 | 1238 | case MFF_DL_VLAN: |
81a76618 | 1239 | match_set_dl_vlan(match, value->be16); |
6a885fd0 | 1240 | break; |
cc34bc8c | 1241 | case MFF_VLAN_VID: |
81a76618 | 1242 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 1243 | break; |
6a885fd0 | 1244 | |
441c57a9 | 1245 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1246 | case MFF_VLAN_PCP: |
81a76618 | 1247 | match_set_dl_vlan_pcp(match, value->u8); |
6a885fd0 BP |
1248 | break; |
1249 | ||
b02475c5 SH |
1250 | case MFF_MPLS_LABEL: |
1251 | match_set_mpls_label(match, value->be32); | |
1252 | break; | |
1253 | ||
1254 | case MFF_MPLS_TC: | |
1255 | match_set_mpls_tc(match, value->u8); | |
1256 | break; | |
1257 | ||
1258 | case MFF_MPLS_BOS: | |
1259 | match_set_mpls_bos(match, value->u8); | |
1260 | break; | |
1261 | ||
6a885fd0 | 1262 | case MFF_IPV4_SRC: |
81a76618 | 1263 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1264 | break; |
1265 | ||
1266 | case MFF_IPV4_DST: | |
81a76618 | 1267 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1268 | break; |
1269 | ||
1270 | case MFF_IPV6_SRC: | |
81a76618 | 1271 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
1272 | break; |
1273 | ||
1274 | case MFF_IPV6_DST: | |
81a76618 | 1275 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
1276 | break; |
1277 | ||
fa8223b7 | 1278 | case MFF_IPV6_LABEL: |
81a76618 | 1279 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
1280 | break; |
1281 | ||
6a885fd0 | 1282 | case MFF_IP_PROTO: |
81a76618 | 1283 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
1284 | break; |
1285 | ||
530180fd | 1286 | case MFF_IP_DSCP: |
81a76618 | 1287 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
1288 | break; |
1289 | ||
1638b906 BP |
1290 | case MFF_IP_DSCP_SHIFTED: |
1291 | match_set_nw_dscp(match, value->u8 << 2); | |
1292 | break; | |
1293 | ||
530180fd | 1294 | case MFF_IP_ECN: |
81a76618 | 1295 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
1296 | break; |
1297 | ||
a61680c6 | 1298 | case MFF_IP_TTL: |
81a76618 | 1299 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
1300 | break; |
1301 | ||
7257b535 | 1302 | case MFF_IP_FRAG: |
81a76618 | 1303 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
1304 | break; |
1305 | ||
6a885fd0 | 1306 | case MFF_ARP_OP: |
81a76618 | 1307 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
1308 | break; |
1309 | ||
1310 | case MFF_ARP_SPA: | |
81a76618 | 1311 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1312 | break; |
1313 | ||
1314 | case MFF_ARP_TPA: | |
81a76618 | 1315 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1316 | break; |
1317 | ||
1318 | case MFF_ARP_SHA: | |
1319 | case MFF_ND_SLL: | |
81a76618 | 1320 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
1321 | break; |
1322 | ||
1323 | case MFF_ARP_THA: | |
1324 | case MFF_ND_TLL: | |
81a76618 | 1325 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1326 | break; |
1327 | ||
1328 | case MFF_TCP_SRC: | |
6a885fd0 | 1329 | case MFF_UDP_SRC: |
81a76618 | 1330 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1331 | break; |
1332 | ||
71baec06 | 1333 | case MFF_TCP_DST: |
6a885fd0 | 1334 | case MFF_UDP_DST: |
81a76618 | 1335 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1336 | break; |
1337 | ||
268a95e0 BP |
1338 | case MFF_ICMPV4_TYPE: |
1339 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1340 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1341 | break; |
1342 | ||
268a95e0 BP |
1343 | case MFF_ICMPV4_CODE: |
1344 | case MFF_ICMPV6_CODE: | |
81a76618 | 1345 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1346 | break; |
1347 | ||
1348 | case MFF_ND_TARGET: | |
81a76618 | 1349 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1350 | break; |
1351 | ||
1352 | case MFF_N_IDS: | |
1353 | default: | |
1354 | NOT_REACHED(); | |
1355 | } | |
1356 | } | |
1357 | ||
910fb1d8 JP |
1358 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1359 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1360 | void |
1361 | mf_set_flow_value(const struct mf_field *mf, | |
1362 | const union mf_value *value, struct flow *flow) | |
1363 | { | |
1364 | switch (mf->id) { | |
1365 | case MFF_TUN_ID: | |
296e07ac | 1366 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1367 | break; |
4fe3445a PS |
1368 | case MFF_TUN_SRC: |
1369 | flow->tunnel.ip_src = value->be32; | |
1370 | break; | |
1371 | case MFF_TUN_DST: | |
1372 | flow->tunnel.ip_dst = value->be32; | |
1373 | break; | |
1374 | case MFF_TUN_FLAGS: | |
1375 | flow->tunnel.flags = ntohs(value->be16); | |
1376 | break; | |
1377 | case MFF_TUN_TOS: | |
1378 | flow->tunnel.ip_tos = value->u8; | |
1379 | break; | |
1380 | case MFF_TUN_TTL: | |
1381 | flow->tunnel.ip_ttl = value->u8; | |
1382 | break; | |
1383 | ||
969fc56c JS |
1384 | case MFF_METADATA: |
1385 | flow->metadata = value->be64; | |
1386 | break; | |
28da1f8f BP |
1387 | |
1388 | case MFF_IN_PORT: | |
4e022ec0 | 1389 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f BP |
1390 | break; |
1391 | ||
72333065 | 1392 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1393 | ofp_port_t port; |
bc146369 | 1394 | ofputil_port_from_ofp11(value->be32, &port); |
4e022ec0 | 1395 | flow->in_port.ofp_port = port; |
72333065 JR |
1396 | break; |
1397 | } | |
1398 | ||
1b567fb9 AA |
1399 | case MFF_SKB_PRIORITY: |
1400 | flow->skb_priority = ntohl(value->be32); | |
1401 | break; | |
1402 | ||
1403 | case MFF_SKB_MARK: | |
1404 | flow->skb_mark = ntohl(value->be32); | |
1405 | break; | |
1406 | ||
0d7e2fe4 | 1407 | CASE_MFF_REGS: |
28da1f8f BP |
1408 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1409 | break; | |
28da1f8f BP |
1410 | |
1411 | case MFF_ETH_SRC: | |
1412 | memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN); | |
1413 | break; | |
1414 | ||
1415 | case MFF_ETH_DST: | |
b5a36e38 | 1416 | memcpy(flow->dl_dst, value->mac, ETH_ADDR_LEN); |
28da1f8f BP |
1417 | break; |
1418 | ||
1419 | case MFF_ETH_TYPE: | |
1420 | flow->dl_type = value->be16; | |
1421 | break; | |
1422 | ||
1423 | case MFF_VLAN_TCI: | |
1424 | flow->vlan_tci = value->be16; | |
1425 | break; | |
1426 | ||
441c57a9 | 1427 | case MFF_DL_VLAN: |
fb0451d9 | 1428 | flow_set_dl_vlan(flow, value->be16); |
28da1f8f | 1429 | break; |
cc34bc8c BP |
1430 | case MFF_VLAN_VID: |
1431 | flow_set_vlan_vid(flow, value->be16); | |
1432 | break; | |
28da1f8f | 1433 | |
441c57a9 | 1434 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1435 | case MFF_VLAN_PCP: |
28da1f8f BP |
1436 | flow_set_vlan_pcp(flow, value->u8); |
1437 | break; | |
1438 | ||
b02475c5 SH |
1439 | case MFF_MPLS_LABEL: |
1440 | flow_set_mpls_label(flow, value->be32); | |
1441 | break; | |
1442 | ||
1443 | case MFF_MPLS_TC: | |
1444 | flow_set_mpls_tc(flow, value->u8); | |
1445 | break; | |
1446 | ||
1447 | case MFF_MPLS_BOS: | |
1448 | flow_set_mpls_bos(flow, value->u8); | |
1449 | break; | |
1450 | ||
28da1f8f BP |
1451 | case MFF_IPV4_SRC: |
1452 | flow->nw_src = value->be32; | |
1453 | break; | |
1454 | ||
1455 | case MFF_IPV4_DST: | |
1456 | flow->nw_dst = value->be32; | |
1457 | break; | |
1458 | ||
1459 | case MFF_IPV6_SRC: | |
1460 | flow->ipv6_src = value->ipv6; | |
1461 | break; | |
1462 | ||
1463 | case MFF_IPV6_DST: | |
1464 | flow->ipv6_dst = value->ipv6; | |
1465 | break; | |
1466 | ||
1467 | case MFF_IPV6_LABEL: | |
1468 | flow->ipv6_label = value->be32 & ~htonl(IPV6_LABEL_MASK); | |
1469 | break; | |
1470 | ||
1471 | case MFF_IP_PROTO: | |
1472 | flow->nw_proto = value->u8; | |
1473 | break; | |
1474 | ||
1475 | case MFF_IP_DSCP: | |
1476 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1477 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1478 | break; | |
1479 | ||
1638b906 BP |
1480 | case MFF_IP_DSCP_SHIFTED: |
1481 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1482 | flow->nw_tos |= value->u8 << 2; | |
1483 | break; | |
1484 | ||
28da1f8f BP |
1485 | case MFF_IP_ECN: |
1486 | flow->nw_tos &= ~IP_ECN_MASK; | |
1487 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1488 | break; | |
1489 | ||
1490 | case MFF_IP_TTL: | |
1491 | flow->nw_ttl = value->u8; | |
1492 | break; | |
1493 | ||
1494 | case MFF_IP_FRAG: | |
1495 | flow->nw_frag &= value->u8; | |
1496 | break; | |
1497 | ||
1498 | case MFF_ARP_OP: | |
1499 | flow->nw_proto = ntohs(value->be16); | |
1500 | break; | |
1501 | ||
1502 | case MFF_ARP_SPA: | |
1503 | flow->nw_src = value->be32; | |
1504 | break; | |
1505 | ||
1506 | case MFF_ARP_TPA: | |
1507 | flow->nw_dst = value->be32; | |
1508 | break; | |
1509 | ||
1510 | case MFF_ARP_SHA: | |
1511 | case MFF_ND_SLL: | |
1512 | memcpy(flow->arp_sha, value->mac, ETH_ADDR_LEN); | |
1513 | break; | |
1514 | ||
1515 | case MFF_ARP_THA: | |
1516 | case MFF_ND_TLL: | |
1517 | memcpy(flow->arp_tha, value->mac, ETH_ADDR_LEN); | |
1518 | break; | |
1519 | ||
1520 | case MFF_TCP_SRC: | |
1521 | case MFF_UDP_SRC: | |
1522 | flow->tp_src = value->be16; | |
1523 | break; | |
1524 | ||
1525 | case MFF_TCP_DST: | |
1526 | case MFF_UDP_DST: | |
1527 | flow->tp_dst = value->be16; | |
1528 | break; | |
1529 | ||
1530 | case MFF_ICMPV4_TYPE: | |
1531 | case MFF_ICMPV6_TYPE: | |
1532 | flow->tp_src = htons(value->u8); | |
1533 | break; | |
1534 | ||
1535 | case MFF_ICMPV4_CODE: | |
1536 | case MFF_ICMPV6_CODE: | |
1537 | flow->tp_dst = htons(value->u8); | |
1538 | break; | |
1539 | ||
1540 | case MFF_ND_TARGET: | |
1541 | flow->nd_target = value->ipv6; | |
1542 | break; | |
1543 | ||
1544 | case MFF_N_IDS: | |
1545 | default: | |
1546 | NOT_REACHED(); | |
1547 | } | |
1548 | } | |
1549 | ||
ccbe50f8 BP |
1550 | /* Returns true if 'mf' has a zero value in 'flow', false if it is nonzero. |
1551 | * | |
1552 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1553 | * prerequisites. */ | |
1554 | bool | |
1555 | mf_is_zero(const struct mf_field *mf, const struct flow *flow) | |
1556 | { | |
1557 | union mf_value value; | |
1558 | ||
1559 | mf_get_value(mf, flow, &value); | |
1560 | return is_all_zeros((const uint8_t *) &value, mf->n_bytes); | |
1561 | } | |
1562 | ||
81a76618 | 1563 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1564 | * |
81a76618 | 1565 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
6a885fd0 BP |
1566 | * prerequisites. */ |
1567 | void | |
81a76618 | 1568 | mf_set_wild(const struct mf_field *mf, struct match *match) |
6a885fd0 BP |
1569 | { |
1570 | switch (mf->id) { | |
1571 | case MFF_TUN_ID: | |
81a76618 | 1572 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1573 | break; |
4fe3445a PS |
1574 | case MFF_TUN_SRC: |
1575 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1576 | break; | |
1577 | case MFF_TUN_DST: | |
1578 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1579 | break; | |
1580 | case MFF_TUN_FLAGS: | |
1581 | match_set_tun_flags_masked(match, 0, 0); | |
1582 | break; | |
1583 | case MFF_TUN_TOS: | |
1584 | match_set_tun_tos_masked(match, 0, 0); | |
1585 | break; | |
1586 | case MFF_TUN_TTL: | |
1587 | match_set_tun_ttl_masked(match, 0, 0); | |
1588 | break; | |
1589 | ||
969fc56c | 1590 | case MFF_METADATA: |
81a76618 | 1591 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 1592 | break; |
6a885fd0 BP |
1593 | |
1594 | case MFF_IN_PORT: | |
72333065 | 1595 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
1596 | match->flow.in_port.ofp_port = 0; |
1597 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 BP |
1598 | break; |
1599 | ||
1b567fb9 AA |
1600 | case MFF_SKB_PRIORITY: |
1601 | match->flow.skb_priority = 0; | |
1602 | match->wc.masks.skb_priority = 0; | |
1603 | break; | |
1604 | ||
1605 | case MFF_SKB_MARK: | |
1606 | match->flow.skb_mark = 0; | |
1607 | match->wc.masks.skb_mark = 0; | |
1608 | break; | |
1609 | ||
0d7e2fe4 | 1610 | CASE_MFF_REGS: |
81a76618 | 1611 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 1612 | break; |
6a885fd0 BP |
1613 | |
1614 | case MFF_ETH_SRC: | |
81a76618 BP |
1615 | memset(match->flow.dl_src, 0, ETH_ADDR_LEN); |
1616 | memset(match->wc.masks.dl_src, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1617 | break; |
1618 | ||
1619 | case MFF_ETH_DST: | |
81a76618 BP |
1620 | memset(match->flow.dl_dst, 0, ETH_ADDR_LEN); |
1621 | memset(match->wc.masks.dl_dst, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1622 | break; |
1623 | ||
1624 | case MFF_ETH_TYPE: | |
81a76618 BP |
1625 | match->flow.dl_type = htons(0); |
1626 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
1627 | break; |
1628 | ||
1629 | case MFF_VLAN_TCI: | |
81a76618 | 1630 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
1631 | break; |
1632 | ||
441c57a9 | 1633 | case MFF_DL_VLAN: |
cc34bc8c | 1634 | case MFF_VLAN_VID: |
81a76618 | 1635 | match_set_any_vid(match); |
6a885fd0 BP |
1636 | break; |
1637 | ||
441c57a9 | 1638 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1639 | case MFF_VLAN_PCP: |
81a76618 | 1640 | match_set_any_pcp(match); |
6a885fd0 BP |
1641 | break; |
1642 | ||
b02475c5 SH |
1643 | case MFF_MPLS_LABEL: |
1644 | match_set_any_mpls_label(match); | |
1645 | break; | |
1646 | ||
1647 | case MFF_MPLS_TC: | |
1648 | match_set_any_mpls_tc(match); | |
1649 | break; | |
1650 | ||
1651 | case MFF_MPLS_BOS: | |
1652 | match_set_any_mpls_bos(match); | |
1653 | break; | |
1654 | ||
6a885fd0 BP |
1655 | case MFF_IPV4_SRC: |
1656 | case MFF_ARP_SPA: | |
81a76618 | 1657 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1658 | break; |
1659 | ||
1660 | case MFF_IPV4_DST: | |
1661 | case MFF_ARP_TPA: | |
81a76618 | 1662 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1663 | break; |
1664 | ||
1665 | case MFF_IPV6_SRC: | |
81a76618 BP |
1666 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
1667 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
1668 | break; |
1669 | ||
1670 | case MFF_IPV6_DST: | |
81a76618 BP |
1671 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
1672 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
1673 | break; |
1674 | ||
fa8223b7 | 1675 | case MFF_IPV6_LABEL: |
81a76618 BP |
1676 | match->wc.masks.ipv6_label = htonl(0); |
1677 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
1678 | break; |
1679 | ||
6a885fd0 | 1680 | case MFF_IP_PROTO: |
81a76618 BP |
1681 | match->wc.masks.nw_proto = 0; |
1682 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1683 | break; |
1684 | ||
530180fd | 1685 | case MFF_IP_DSCP: |
1638b906 | 1686 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
1687 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
1688 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
1689 | break; |
1690 | ||
530180fd | 1691 | case MFF_IP_ECN: |
81a76618 BP |
1692 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
1693 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
1694 | break; |
1695 | ||
a61680c6 | 1696 | case MFF_IP_TTL: |
81a76618 BP |
1697 | match->wc.masks.nw_ttl = 0; |
1698 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
1699 | break; |
1700 | ||
7257b535 | 1701 | case MFF_IP_FRAG: |
81a76618 BP |
1702 | match->wc.masks.nw_frag |= FLOW_NW_FRAG_MASK; |
1703 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; | |
6a885fd0 BP |
1704 | break; |
1705 | ||
1706 | case MFF_ARP_OP: | |
81a76618 BP |
1707 | match->wc.masks.nw_proto = 0; |
1708 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1709 | break; |
1710 | ||
1711 | case MFF_ARP_SHA: | |
1712 | case MFF_ND_SLL: | |
81a76618 BP |
1713 | memset(match->flow.arp_sha, 0, ETH_ADDR_LEN); |
1714 | memset(match->wc.masks.arp_sha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1715 | break; |
1716 | ||
1717 | case MFF_ARP_THA: | |
1718 | case MFF_ND_TLL: | |
81a76618 BP |
1719 | memset(match->flow.arp_tha, 0, ETH_ADDR_LEN); |
1720 | memset(match->wc.masks.arp_tha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1721 | break; |
1722 | ||
1723 | case MFF_TCP_SRC: | |
1724 | case MFF_UDP_SRC: | |
268a95e0 BP |
1725 | case MFF_ICMPV4_TYPE: |
1726 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
1727 | match->wc.masks.tp_src = htons(0); |
1728 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
1729 | break; |
1730 | ||
1731 | case MFF_TCP_DST: | |
1732 | case MFF_UDP_DST: | |
268a95e0 BP |
1733 | case MFF_ICMPV4_CODE: |
1734 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
1735 | match->wc.masks.tp_dst = htons(0); |
1736 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
1737 | break; |
1738 | ||
1739 | case MFF_ND_TARGET: | |
81a76618 BP |
1740 | memset(&match->wc.masks.nd_target, 0, |
1741 | sizeof match->wc.masks.nd_target); | |
1742 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
1743 | break; |
1744 | ||
1745 | case MFF_N_IDS: | |
1746 | default: | |
1747 | NOT_REACHED(); | |
1748 | } | |
1749 | } | |
1750 | ||
81a76618 | 1751 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
1752 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
1753 | * with a 1-bit indicating that the corresponding value bit must match and a | |
1754 | * 0-bit indicating a don't-care. | |
1755 | * | |
1756 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
1757 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
1758 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
1759 | * |
1760 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
81a76618 | 1761 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. */ |
6a885fd0 BP |
1762 | void |
1763 | mf_set(const struct mf_field *mf, | |
1764 | const union mf_value *value, const union mf_value *mask, | |
81a76618 | 1765 | struct match *match) |
6a885fd0 BP |
1766 | { |
1767 | if (!mask || is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
81a76618 | 1768 | mf_set_value(mf, value, match); |
6a885fd0 BP |
1769 | return; |
1770 | } else if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { | |
81a76618 | 1771 | mf_set_wild(mf, match); |
6a885fd0 BP |
1772 | return; |
1773 | } | |
1774 | ||
1775 | switch (mf->id) { | |
1776 | case MFF_IN_PORT: | |
72333065 | 1777 | case MFF_IN_PORT_OXM: |
1b567fb9 AA |
1778 | case MFF_SKB_MARK: |
1779 | case MFF_SKB_PRIORITY: | |
6a885fd0 | 1780 | case MFF_ETH_TYPE: |
441c57a9 BP |
1781 | case MFF_DL_VLAN: |
1782 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 1783 | case MFF_VLAN_PCP: |
b02475c5 SH |
1784 | case MFF_MPLS_LABEL: |
1785 | case MFF_MPLS_TC: | |
1786 | case MFF_MPLS_BOS: | |
6a885fd0 | 1787 | case MFF_IP_PROTO: |
a61680c6 | 1788 | case MFF_IP_TTL: |
530180fd | 1789 | case MFF_IP_DSCP: |
1638b906 | 1790 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 1791 | case MFF_IP_ECN: |
6a885fd0 | 1792 | case MFF_ARP_OP: |
268a95e0 BP |
1793 | case MFF_ICMPV4_TYPE: |
1794 | case MFF_ICMPV4_CODE: | |
1795 | case MFF_ICMPV6_TYPE: | |
1796 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1797 | NOT_REACHED(); |
1798 | ||
1799 | case MFF_TUN_ID: | |
81a76618 | 1800 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 1801 | break; |
4fe3445a PS |
1802 | case MFF_TUN_SRC: |
1803 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
1804 | break; | |
1805 | case MFF_TUN_DST: | |
1806 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
1807 | break; | |
1808 | case MFF_TUN_FLAGS: | |
1809 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
1810 | break; | |
1811 | case MFF_TUN_TTL: | |
1812 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
1813 | break; | |
1814 | case MFF_TUN_TOS: | |
1815 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
1816 | break; | |
1817 | ||
969fc56c | 1818 | case MFF_METADATA: |
81a76618 | 1819 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 1820 | break; |
6a885fd0 | 1821 | |
0d7e2fe4 | 1822 | CASE_MFF_REGS: |
81a76618 BP |
1823 | match_set_reg_masked(match, mf->id - MFF_REG0, |
1824 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 BP |
1825 | break; |
1826 | ||
1827 | case MFF_ETH_DST: | |
81a76618 | 1828 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
1829 | break; |
1830 | ||
1831 | case MFF_ETH_SRC: | |
81a76618 | 1832 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
1833 | break; |
1834 | ||
e878338b SH |
1835 | case MFF_ARP_SHA: |
1836 | case MFF_ND_SLL: | |
81a76618 | 1837 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
1838 | break; |
1839 | ||
1840 | case MFF_ARP_THA: | |
1841 | case MFF_ND_TLL: | |
81a76618 | 1842 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
1843 | break; |
1844 | ||
6a885fd0 | 1845 | case MFF_VLAN_TCI: |
81a76618 | 1846 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
1847 | break; |
1848 | ||
cc34bc8c | 1849 | case MFF_VLAN_VID: |
81a76618 | 1850 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
1851 | break; |
1852 | ||
6a885fd0 | 1853 | case MFF_IPV4_SRC: |
81a76618 | 1854 | match_set_nw_src_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1855 | break; |
1856 | ||
1857 | case MFF_IPV4_DST: | |
81a76618 | 1858 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1859 | break; |
1860 | ||
1861 | case MFF_IPV6_SRC: | |
81a76618 | 1862 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1863 | break; |
1864 | ||
1865 | case MFF_IPV6_DST: | |
81a76618 | 1866 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1867 | break; |
1868 | ||
32455024 SH |
1869 | case MFF_IPV6_LABEL: |
1870 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
81a76618 | 1871 | mf_set_value(mf, value, match); |
32455024 | 1872 | } else { |
81a76618 | 1873 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
1874 | } |
1875 | break; | |
1876 | ||
47284b1f | 1877 | case MFF_ND_TARGET: |
81a76618 | 1878 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
1879 | break; |
1880 | ||
7257b535 | 1881 | case MFF_IP_FRAG: |
81a76618 | 1882 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
1883 | break; |
1884 | ||
6a885fd0 | 1885 | case MFF_ARP_SPA: |
81a76618 | 1886 | match_set_nw_src_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1887 | break; |
1888 | ||
1889 | case MFF_ARP_TPA: | |
81a76618 | 1890 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1891 | break; |
1892 | ||
73f33563 BP |
1893 | case MFF_TCP_SRC: |
1894 | case MFF_UDP_SRC: | |
81a76618 | 1895 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
1896 | break; |
1897 | ||
1898 | case MFF_TCP_DST: | |
1899 | case MFF_UDP_DST: | |
81a76618 | 1900 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
1901 | break; |
1902 | ||
6a885fd0 BP |
1903 | case MFF_N_IDS: |
1904 | default: | |
1905 | NOT_REACHED(); | |
1906 | } | |
1907 | } | |
1908 | ||
816fd533 BP |
1909 | static enum ofperr |
1910 | mf_check__(const struct mf_subfield *sf, const struct flow *flow, | |
1911 | const char *type) | |
6a885fd0 | 1912 | { |
816fd533 BP |
1913 | if (!sf->field) { |
1914 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
1915 | } else if (!sf->n_bits) { | |
1916 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
1917 | } else if (sf->ofs >= sf->field->n_bits) { | |
1918 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
1919 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
1920 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { | |
1921 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
1922 | "of %s field %s", sf->ofs, sf->n_bits, | |
1923 | sf->field->n_bits, type, sf->field->name); | |
1924 | } else if (flow && !mf_are_prereqs_ok(sf->field, flow)) { | |
1925 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", | |
1926 | type, sf->field->name); | |
6a885fd0 | 1927 | } else { |
816fd533 BP |
1928 | return 0; |
1929 | } | |
6a885fd0 | 1930 | |
816fd533 BP |
1931 | return OFPERR_OFPBAC_BAD_ARGUMENT; |
1932 | } | |
6a885fd0 | 1933 | |
816fd533 BP |
1934 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
1935 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
1936 | * ofp_mkerr()). */ | |
1937 | enum ofperr | |
1938 | mf_check_src(const struct mf_subfield *sf, const struct flow *flow) | |
1939 | { | |
1940 | return mf_check__(sf, flow, "source"); | |
1941 | } | |
6a885fd0 | 1942 | |
816fd533 BP |
1943 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
1944 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
1945 | * ofp_mkerr()). */ | |
1946 | enum ofperr | |
1947 | mf_check_dst(const struct mf_subfield *sf, const struct flow *flow) | |
1948 | { | |
1949 | int error = mf_check__(sf, flow, "destination"); | |
1950 | if (!error && !sf->field->writable) { | |
1951 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
1952 | sf->field->name); | |
1953 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
6a885fd0 | 1954 | } |
816fd533 | 1955 | return error; |
6a885fd0 BP |
1956 | } |
1957 | ||
81a76618 | 1958 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
1959 | * 'value' and 'mask', respectively. */ |
1960 | void | |
81a76618 | 1961 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
1962 | union mf_value *value, union mf_value *mask) |
1963 | { | |
81a76618 BP |
1964 | mf_get_value(mf, &match->flow, value); |
1965 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
1966 | } |
1967 | ||
1968 | /* Assigns a random value for field 'mf' to 'value'. */ | |
1969 | void | |
1970 | mf_random_value(const struct mf_field *mf, union mf_value *value) | |
1971 | { | |
1972 | random_bytes(value, mf->n_bytes); | |
1973 | ||
1974 | switch (mf->id) { | |
1975 | case MFF_TUN_ID: | |
4fe3445a PS |
1976 | case MFF_TUN_SRC: |
1977 | case MFF_TUN_DST: | |
1978 | case MFF_TUN_TOS: | |
1979 | case MFF_TUN_TTL: | |
1980 | case MFF_TUN_FLAGS: | |
969fc56c | 1981 | case MFF_METADATA: |
6a885fd0 | 1982 | case MFF_IN_PORT: |
1b567fb9 AA |
1983 | case MFF_SKB_MARK: |
1984 | case MFF_SKB_PRIORITY: | |
0d7e2fe4 | 1985 | CASE_MFF_REGS: |
6a885fd0 BP |
1986 | case MFF_ETH_SRC: |
1987 | case MFF_ETH_DST: | |
1988 | case MFF_ETH_TYPE: | |
1989 | case MFF_VLAN_TCI: | |
1990 | case MFF_IPV4_SRC: | |
1991 | case MFF_IPV4_DST: | |
1992 | case MFF_IPV6_SRC: | |
1993 | case MFF_IPV6_DST: | |
1994 | case MFF_IP_PROTO: | |
a61680c6 | 1995 | case MFF_IP_TTL: |
6a885fd0 BP |
1996 | case MFF_ARP_SPA: |
1997 | case MFF_ARP_TPA: | |
1998 | case MFF_ARP_SHA: | |
1999 | case MFF_ARP_THA: | |
2000 | case MFF_TCP_SRC: | |
2001 | case MFF_TCP_DST: | |
2002 | case MFF_UDP_SRC: | |
2003 | case MFF_UDP_DST: | |
268a95e0 BP |
2004 | case MFF_ICMPV4_TYPE: |
2005 | case MFF_ICMPV4_CODE: | |
2006 | case MFF_ICMPV6_TYPE: | |
2007 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
2008 | case MFF_ND_TARGET: |
2009 | case MFF_ND_SLL: | |
2010 | case MFF_ND_TLL: | |
2011 | break; | |
2012 | ||
72333065 | 2013 | case MFF_IN_PORT_OXM: |
4e022ec0 | 2014 | value->be32 = ofputil_port_to_ofp11(u16_to_ofp(ntohs(value->be16))); |
72333065 JR |
2015 | break; |
2016 | ||
fa8223b7 JP |
2017 | case MFF_IPV6_LABEL: |
2018 | value->be32 &= ~htonl(IPV6_LABEL_MASK); | |
2019 | break; | |
2020 | ||
530180fd JP |
2021 | case MFF_IP_DSCP: |
2022 | value->u8 &= IP_DSCP_MASK; | |
2023 | break; | |
2024 | ||
1638b906 BP |
2025 | case MFF_IP_DSCP_SHIFTED: |
2026 | value->u8 &= IP_DSCP_MASK >> 2; | |
2027 | break; | |
2028 | ||
530180fd JP |
2029 | case MFF_IP_ECN: |
2030 | value->u8 &= IP_ECN_MASK; | |
6a885fd0 BP |
2031 | break; |
2032 | ||
7257b535 | 2033 | case MFF_IP_FRAG: |
eadef313 | 2034 | value->u8 &= FLOW_NW_FRAG_MASK; |
7257b535 BP |
2035 | break; |
2036 | ||
6a885fd0 BP |
2037 | case MFF_ARP_OP: |
2038 | value->be16 &= htons(0xff); | |
2039 | break; | |
2040 | ||
441c57a9 | 2041 | case MFF_DL_VLAN: |
6a885fd0 BP |
2042 | value->be16 &= htons(VLAN_VID_MASK); |
2043 | break; | |
cc34bc8c BP |
2044 | case MFF_VLAN_VID: |
2045 | value->be16 &= htons(VLAN_VID_MASK | VLAN_CFI); | |
2046 | break; | |
6a885fd0 | 2047 | |
441c57a9 | 2048 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 2049 | case MFF_VLAN_PCP: |
6a885fd0 BP |
2050 | value->u8 &= 0x07; |
2051 | break; | |
2052 | ||
b02475c5 SH |
2053 | case MFF_MPLS_LABEL: |
2054 | value->be32 &= htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT); | |
2055 | break; | |
2056 | ||
2057 | case MFF_MPLS_TC: | |
2058 | value->u8 &= MPLS_TC_MASK >> MPLS_TC_SHIFT; | |
2059 | break; | |
2060 | ||
2061 | case MFF_MPLS_BOS: | |
2062 | value->u8 &= MPLS_BOS_MASK >> MPLS_BOS_SHIFT; | |
2063 | break; | |
2064 | ||
6a885fd0 BP |
2065 | case MFF_N_IDS: |
2066 | default: | |
2067 | NOT_REACHED(); | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | static char * | |
2072 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2073 | uint8_t *valuep, uint8_t *maskp) | |
2074 | { | |
2075 | unsigned long long int integer, mask; | |
2076 | char *tail; | |
2077 | int i; | |
2078 | ||
2079 | errno = 0; | |
2080 | integer = strtoull(s, &tail, 0); | |
2081 | if (errno || (*tail != '\0' && *tail != '/')) { | |
2082 | goto syntax_error; | |
2083 | } | |
2084 | ||
2085 | if (*tail == '/') { | |
2086 | mask = strtoull(tail + 1, &tail, 0); | |
2087 | if (errno || *tail != '\0') { | |
2088 | goto syntax_error; | |
2089 | } | |
2090 | } else { | |
2091 | mask = ULLONG_MAX; | |
2092 | } | |
2093 | ||
2094 | for (i = mf->n_bytes - 1; i >= 0; i--) { | |
2095 | valuep[i] = integer; | |
2096 | maskp[i] = mask; | |
2097 | integer >>= 8; | |
2098 | mask >>= 8; | |
2099 | } | |
2100 | if (integer) { | |
2101 | return xasprintf("%s: value too large for %u-byte field %s", | |
2102 | s, mf->n_bytes, mf->name); | |
2103 | } | |
2104 | return NULL; | |
2105 | ||
2106 | syntax_error: | |
2107 | return xasprintf("%s: bad syntax for %s", s, mf->name); | |
2108 | } | |
2109 | ||
2110 | static char * | |
2111 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
2112 | uint8_t mac[ETH_ADDR_LEN], | |
2113 | uint8_t mask[ETH_ADDR_LEN]) | |
2114 | { | |
cb22974d | 2115 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 BP |
2116 | |
2117 | switch (sscanf(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT, | |
2118 | ETH_ADDR_SCAN_ARGS(mac), ETH_ADDR_SCAN_ARGS(mask))){ | |
2119 | case ETH_ADDR_SCAN_COUNT * 2: | |
2120 | return NULL; | |
2121 | ||
2122 | case ETH_ADDR_SCAN_COUNT: | |
2123 | memset(mask, 0xff, ETH_ADDR_LEN); | |
2124 | return NULL; | |
2125 | ||
2126 | default: | |
2127 | return xasprintf("%s: invalid Ethernet address", s); | |
2128 | } | |
2129 | } | |
2130 | ||
2131 | static char * | |
2132 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2133 | ovs_be32 *ip, ovs_be32 *mask) | |
2134 | { | |
2135 | int prefix; | |
2136 | ||
cb22974d | 2137 | ovs_assert(mf->n_bytes == sizeof *ip); |
6a885fd0 BP |
2138 | |
2139 | if (sscanf(s, IP_SCAN_FMT"/"IP_SCAN_FMT, | |
2140 | IP_SCAN_ARGS(ip), IP_SCAN_ARGS(mask)) == IP_SCAN_COUNT * 2) { | |
2141 | /* OK. */ | |
2142 | } else if (sscanf(s, IP_SCAN_FMT"/%d", | |
2143 | IP_SCAN_ARGS(ip), &prefix) == IP_SCAN_COUNT + 1) { | |
2144 | if (prefix <= 0 || prefix > 32) { | |
2145 | return xasprintf("%s: network prefix bits not between 1 and " | |
2146 | "32", s); | |
2147 | } else if (prefix == 32) { | |
2148 | *mask = htonl(UINT32_MAX); | |
2149 | } else { | |
2150 | *mask = htonl(((1u << prefix) - 1) << (32 - prefix)); | |
2151 | } | |
2152 | } else if (sscanf(s, IP_SCAN_FMT, IP_SCAN_ARGS(ip)) == IP_SCAN_COUNT) { | |
2153 | *mask = htonl(UINT32_MAX); | |
2154 | } else { | |
2155 | return xasprintf("%s: invalid IP address", s); | |
2156 | } | |
2157 | return NULL; | |
2158 | } | |
2159 | ||
2160 | static char * | |
2161 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
2162 | struct in6_addr *value, struct in6_addr *mask) | |
2163 | { | |
2164 | char *str = xstrdup(s); | |
2165 | char *save_ptr = NULL; | |
2166 | const char *name, *netmask; | |
2167 | int retval; | |
2168 | ||
cb22974d | 2169 | ovs_assert(mf->n_bytes == sizeof *value); |
6a885fd0 BP |
2170 | |
2171 | name = strtok_r(str, "/", &save_ptr); | |
2172 | retval = name ? lookup_ipv6(name, value) : EINVAL; | |
2173 | if (retval) { | |
2174 | char *err; | |
2175 | ||
2176 | err = xasprintf("%s: could not convert to IPv6 address", str); | |
2177 | free(str); | |
2178 | ||
2179 | return err; | |
2180 | } | |
2181 | ||
2182 | netmask = strtok_r(NULL, "/", &save_ptr); | |
2183 | if (netmask) { | |
ff0b06ee BP |
2184 | if (inet_pton(AF_INET6, netmask, mask) != 1) { |
2185 | int prefix = atoi(netmask); | |
2186 | if (prefix <= 0 || prefix > 128) { | |
2187 | free(str); | |
2188 | return xasprintf("%s: prefix bits not between 1 and 128", s); | |
2189 | } else { | |
2190 | *mask = ipv6_create_mask(prefix); | |
2191 | } | |
6a885fd0 BP |
2192 | } |
2193 | } else { | |
2194 | *mask = in6addr_exact; | |
2195 | } | |
2196 | free(str); | |
2197 | ||
2198 | return NULL; | |
2199 | } | |
2200 | ||
2201 | static char * | |
2202 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
2203 | ovs_be16 *valuep, ovs_be16 *maskp) | |
2204 | { | |
4e022ec0 | 2205 | ofp_port_t port; |
6a885fd0 | 2206 | |
cb22974d | 2207 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 JR |
2208 | |
2209 | if (ofputil_port_from_string(s, &port)) { | |
4e022ec0 | 2210 | *valuep = htons(ofp_to_u16(port)); |
6a885fd0 BP |
2211 | *maskp = htons(UINT16_MAX); |
2212 | return NULL; | |
6a885fd0 | 2213 | } |
33ab38d9 | 2214 | return xasprintf("%s: port value out of range for %s", s, mf->name); |
6a885fd0 BP |
2215 | } |
2216 | ||
72333065 JR |
2217 | static char * |
2218 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
2219 | ovs_be32 *valuep, ovs_be32 *maskp) | |
2220 | { | |
4e022ec0 | 2221 | ofp_port_t port; |
72333065 JR |
2222 | |
2223 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2224 | if (ofputil_port_from_string(s, &port)) { | |
2225 | *valuep = ofputil_port_to_ofp11(port); | |
2226 | *maskp = htonl(UINT32_MAX); | |
2227 | return NULL; | |
2228 | } | |
2229 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2230 | } | |
2231 | ||
7257b535 BP |
2232 | struct frag_handling { |
2233 | const char *name; | |
2234 | uint8_t mask; | |
2235 | uint8_t value; | |
2236 | }; | |
2237 | ||
2238 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2239 | #define A FLOW_NW_FRAG_ANY |
2240 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2241 | /* name mask value */ |
2242 | ||
2243 | { "no", A|L, 0 }, | |
2244 | { "first", A|L, A }, | |
2245 | { "later", A|L, A|L }, | |
2246 | ||
2247 | { "no", A, 0 }, | |
2248 | { "yes", A, A }, | |
2249 | ||
2250 | { "not_later", L, 0 }, | |
2251 | { "later", L, L }, | |
2252 | #undef A | |
2253 | #undef L | |
2254 | }; | |
2255 | ||
2256 | static char * | |
2257 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2258 | { | |
2259 | const struct frag_handling *h; | |
2260 | ||
2261 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2262 | if (!strcasecmp(s, h->name)) { | |
2263 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2264 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2265 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2266 | *valuep = h->value; |
2267 | return NULL; | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
2272 | "\"yes\", \"first\", \"later\", \"not_first\"", s); | |
2273 | } | |
2274 | ||
4fe3445a PS |
2275 | static int |
2276 | parse_flow_tun_flags(const char *s_, const char *(*bit_to_string)(uint32_t), | |
2277 | ovs_be16 *res) | |
2278 | { | |
2279 | uint32_t result = 0; | |
2280 | char *save_ptr = NULL; | |
2281 | char *name; | |
2282 | int rc = 0; | |
2283 | char *s = xstrdup(s_); | |
2284 | ||
2285 | for (name = strtok_r((char *)s, " |", &save_ptr); name; | |
2286 | name = strtok_r(NULL, " |", &save_ptr)) { | |
2287 | int name_len; | |
2288 | unsigned long long int flags; | |
2289 | uint32_t bit; | |
2290 | int n0; | |
2291 | ||
2292 | if (sscanf(name, "%lli%n", &flags, &n0) > 0 && n0 > 0) { | |
2293 | result |= flags; | |
2294 | continue; | |
2295 | } | |
2296 | name_len = strlen(name); | |
2297 | for (bit = 1; bit; bit <<= 1) { | |
2298 | const char *fname = bit_to_string(bit); | |
2299 | size_t len; | |
2300 | ||
2301 | if (!fname) { | |
2302 | continue; | |
2303 | } | |
2304 | ||
2305 | len = strlen(fname); | |
2306 | if (len != name_len) { | |
2307 | continue; | |
2308 | } | |
2309 | if (!strncmp(name, fname, len)) { | |
2310 | result |= bit; | |
2311 | break; | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | if (!bit) { | |
2316 | rc = -ENOENT; | |
2317 | goto out; | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | *res = htons(result); | |
2322 | out: | |
2323 | free(s); | |
2324 | return rc; | |
2325 | } | |
2326 | ||
2327 | static char * | |
b0aa8146 | 2328 | mf_from_tun_flags_string(const char *s, ovs_be16 *valuep, ovs_be16 *maskp) |
4fe3445a PS |
2329 | { |
2330 | if (!parse_flow_tun_flags(s, flow_tun_flag_to_string, valuep)) { | |
b0aa8146 | 2331 | *maskp = htons(UINT16_MAX); |
4fe3445a PS |
2332 | return NULL; |
2333 | } | |
2334 | ||
2335 | return xasprintf("%s: unknown tunnel flags (valid flags are \"df\", " | |
2336 | "\"csum\", \"key\"", s); | |
2337 | } | |
2338 | ||
6a885fd0 BP |
2339 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2340 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2341 | char * | |
2342 | mf_parse(const struct mf_field *mf, const char *s, | |
2343 | union mf_value *value, union mf_value *mask) | |
2344 | { | |
bedde04c | 2345 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2346 | memset(value, 0, mf->n_bytes); |
2347 | memset(mask, 0, mf->n_bytes); | |
2348 | return NULL; | |
2349 | } | |
2350 | ||
2351 | switch (mf->string) { | |
2352 | case MFS_DECIMAL: | |
2353 | case MFS_HEXADECIMAL: | |
2354 | return mf_from_integer_string(mf, s, | |
2355 | (uint8_t *) value, (uint8_t *) mask); | |
2356 | ||
2357 | case MFS_ETHERNET: | |
2358 | return mf_from_ethernet_string(mf, s, value->mac, mask->mac); | |
2359 | ||
2360 | case MFS_IPV4: | |
2361 | return mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); | |
2362 | ||
2363 | case MFS_IPV6: | |
2364 | return mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); | |
2365 | ||
2366 | case MFS_OFP_PORT: | |
2367 | return mf_from_ofp_port_string(mf, s, &value->be16, &mask->be16); | |
7257b535 | 2368 | |
72333065 JR |
2369 | case MFS_OFP_PORT_OXM: |
2370 | return mf_from_ofp_port_string32(mf, s, &value->be32, &mask->be32); | |
2371 | ||
7257b535 BP |
2372 | case MFS_FRAG: |
2373 | return mf_from_frag_string(s, &value->u8, &mask->u8); | |
4fe3445a PS |
2374 | |
2375 | case MFS_TNL_FLAGS: | |
cb22974d | 2376 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
b0aa8146 | 2377 | return mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
6a885fd0 BP |
2378 | } |
2379 | NOT_REACHED(); | |
2380 | } | |
2381 | ||
2382 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
2383 | * successful, otherwise a malloc()'d string describing the error. */ | |
2384 | char * | |
2385 | mf_parse_value(const struct mf_field *mf, const char *s, union mf_value *value) | |
2386 | { | |
2387 | union mf_value mask; | |
2388 | char *error; | |
2389 | ||
2390 | error = mf_parse(mf, s, value, &mask); | |
2391 | if (error) { | |
2392 | return error; | |
2393 | } | |
2394 | ||
2395 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
2396 | return xasprintf("%s: wildcards not allowed here", s); | |
2397 | } | |
2398 | return NULL; | |
2399 | } | |
2400 | ||
2401 | static void | |
2402 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
2403 | const uint8_t *maskp, struct ds *s) | |
2404 | { | |
2405 | unsigned long long int integer; | |
2406 | int i; | |
2407 | ||
cb22974d | 2408 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 BP |
2409 | |
2410 | integer = 0; | |
2411 | for (i = 0; i < mf->n_bytes; i++) { | |
2412 | integer = (integer << 8) | valuep[i]; | |
2413 | } | |
2414 | if (mf->string == MFS_HEXADECIMAL) { | |
2415 | ds_put_format(s, "%#llx", integer); | |
2416 | } else { | |
2417 | ds_put_format(s, "%lld", integer); | |
2418 | } | |
2419 | ||
2420 | if (maskp) { | |
2421 | unsigned long long int mask; | |
2422 | ||
2423 | mask = 0; | |
2424 | for (i = 0; i < mf->n_bytes; i++) { | |
2425 | mask = (mask << 8) | maskp[i]; | |
2426 | } | |
2427 | ||
2428 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm | |
2429 | * not sure that that a bit-mask written in decimal is ever easier to | |
2430 | * understand than the same bit-mask written in hexadecimal. */ | |
2431 | ds_put_format(s, "/%#llx", mask); | |
2432 | } | |
2433 | } | |
2434 | ||
7257b535 | 2435 | static void |
8f75dea3 | 2436 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
2437 | { |
2438 | const struct frag_handling *h; | |
7257b535 | 2439 | |
eadef313 | 2440 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 2441 | value &= mask; |
7257b535 BP |
2442 | |
2443 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2444 | if (value == h->value && mask == h->mask) { | |
2445 | ds_put_cstr(s, h->name); | |
2446 | return; | |
2447 | } | |
2448 | } | |
2449 | ds_put_cstr(s, "<error>"); | |
2450 | } | |
2451 | ||
4fe3445a PS |
2452 | static void |
2453 | mf_format_tnl_flags_string(const ovs_be16 *valuep, struct ds *s) | |
2454 | { | |
2455 | format_flags(s, flow_tun_flag_to_string, ntohs(*valuep), '|'); | |
2456 | } | |
2457 | ||
6a885fd0 BP |
2458 | /* Appends to 's' a string representation of field 'mf' whose value is in |
2459 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
2460 | void | |
2461 | mf_format(const struct mf_field *mf, | |
2462 | const union mf_value *value, const union mf_value *mask, | |
2463 | struct ds *s) | |
2464 | { | |
2465 | if (mask) { | |
2466 | if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { | |
2467 | ds_put_cstr(s, "ANY"); | |
2468 | return; | |
2469 | } else if (is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
2470 | mask = NULL; | |
2471 | } | |
2472 | } | |
2473 | ||
2474 | switch (mf->string) { | |
72333065 JR |
2475 | case MFS_OFP_PORT_OXM: |
2476 | if (!mask) { | |
4e022ec0 | 2477 | ofp_port_t port; |
bc146369 | 2478 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
2479 | ofputil_format_port(port, s); |
2480 | break; | |
2481 | } | |
2482 | /* fall through */ | |
6a885fd0 BP |
2483 | case MFS_OFP_PORT: |
2484 | if (!mask) { | |
4e022ec0 | 2485 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), s); |
6a885fd0 BP |
2486 | break; |
2487 | } | |
2488 | /* fall through */ | |
2489 | case MFS_DECIMAL: | |
2490 | case MFS_HEXADECIMAL: | |
2491 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
2492 | break; | |
2493 | ||
2494 | case MFS_ETHERNET: | |
3b4d8ad3 | 2495 | eth_format_masked(value->mac, mask->mac, s); |
6a885fd0 BP |
2496 | break; |
2497 | ||
2498 | case MFS_IPV4: | |
2499 | ip_format_masked(value->be32, mask ? mask->be32 : htonl(UINT32_MAX), | |
2500 | s); | |
2501 | break; | |
2502 | ||
2503 | case MFS_IPV6: | |
2504 | print_ipv6_masked(s, &value->ipv6, mask ? &mask->ipv6 : NULL); | |
2505 | break; | |
2506 | ||
7257b535 | 2507 | case MFS_FRAG: |
8f75dea3 | 2508 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
2509 | break; |
2510 | ||
4fe3445a PS |
2511 | case MFS_TNL_FLAGS: |
2512 | mf_format_tnl_flags_string(&value->be16, s); | |
2513 | break; | |
2514 | ||
6a885fd0 BP |
2515 | default: |
2516 | NOT_REACHED(); | |
2517 | } | |
2518 | } | |
816fd533 | 2519 | \f |
9bab681f IY |
2520 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
2521 | * least-significant bits in 'x'. | |
2522 | */ | |
2523 | void | |
2524 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
2525 | const union mf_subvalue *x, struct flow *flow) | |
2526 | { | |
2527 | const struct mf_field *field = sf->field; | |
2528 | union mf_value value; | |
2529 | ||
2530 | mf_get_value(field, flow, &value); | |
158edc8d | 2531 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
2532 | sf->ofs, sf->n_bits); |
2533 | mf_set_flow_value(field, &value, flow); | |
2534 | } | |
2535 | ||
81a76618 | 2536 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 2537 | * least-significant bits in 'x'. |
615660a9 | 2538 | */ |
1b35df45 BP |
2539 | void |
2540 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 2541 | struct match *match) |
1b35df45 BP |
2542 | { |
2543 | const struct mf_field *field = sf->field; | |
2544 | union mf_value value, mask; | |
2545 | ||
81a76618 | 2546 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
2547 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
2548 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
81a76618 | 2549 | mf_set(field, &value, &mask, match); |
1b35df45 BP |
2550 | } |
2551 | ||
1b35df45 BP |
2552 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
2553 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
2554 | void | |
2555 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
2556 | union mf_subvalue *x) | |
2557 | { | |
2558 | union mf_value value; | |
2559 | ||
2560 | mf_get_value(sf->field, flow, &value); | |
2561 | ||
2562 | memset(x, 0, sizeof *x); | |
2563 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
2564 | x, sizeof *x, 0, | |
2565 | sf->n_bits); | |
2566 | } | |
2567 | ||
816fd533 BP |
2568 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
2569 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
2570 | * less. */ | |
2571 | uint64_t | |
2572 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
2573 | { | |
2574 | union mf_value value; | |
2575 | ||
2576 | mf_get_value(sf->field, flow, &value); | |
2577 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2578 | } | |
2579 | ||
2580 | /* Formats 'sf' into 's' in a format normally acceptable to | |
2581 | * mf_parse_subfield(). (It won't be acceptable if sf->field is NULL or if | |
2582 | * sf->field has no NXM name.) */ | |
2583 | void | |
2584 | mf_format_subfield(const struct mf_subfield *sf, struct ds *s) | |
2585 | { | |
2586 | if (!sf->field) { | |
2587 | ds_put_cstr(s, "<unknown>"); | |
2588 | } else if (sf->field->nxm_name) { | |
2589 | ds_put_cstr(s, sf->field->nxm_name); | |
2590 | } else if (sf->field->nxm_header) { | |
2591 | uint32_t header = sf->field->nxm_header; | |
2592 | ds_put_format(s, "%d:%d", NXM_VENDOR(header), NXM_FIELD(header)); | |
2593 | } else { | |
2594 | ds_put_cstr(s, sf->field->name); | |
2595 | } | |
2596 | ||
33500edd | 2597 | if (sf->field && sf->ofs == 0 && sf->n_bits == sf->field->n_bits) { |
816fd533 BP |
2598 | ds_put_cstr(s, "[]"); |
2599 | } else if (sf->n_bits == 1) { | |
2600 | ds_put_format(s, "[%d]", sf->ofs); | |
2601 | } else { | |
2602 | ds_put_format(s, "[%d..%d]", sf->ofs, sf->ofs + sf->n_bits - 1); | |
2603 | } | |
2604 | } | |
2605 | ||
2606 | static const struct mf_field * | |
2607 | mf_parse_subfield_name(const char *name, int name_len, bool *wild) | |
2608 | { | |
2609 | int i; | |
2610 | ||
2611 | *wild = name_len > 2 && !memcmp(&name[name_len - 2], "_W", 2); | |
2612 | if (*wild) { | |
2613 | name_len -= 2; | |
2614 | } | |
2615 | ||
2616 | for (i = 0; i < MFF_N_IDS; i++) { | |
2617 | const struct mf_field *mf = mf_from_id(i); | |
2618 | ||
2619 | if (mf->nxm_name | |
2620 | && !strncmp(mf->nxm_name, name, name_len) | |
2621 | && mf->nxm_name[name_len] == '\0') { | |
2622 | return mf; | |
2623 | } | |
b5e5143b BP |
2624 | if (mf->oxm_name |
2625 | && !strncmp(mf->oxm_name, name, name_len) | |
2626 | && mf->oxm_name[name_len] == '\0') { | |
2627 | return mf; | |
2628 | } | |
816fd533 BP |
2629 | } |
2630 | ||
2631 | return NULL; | |
2632 | } | |
2633 | ||
2634 | /* Parses a subfield from the beginning of '*sp' into 'sf'. If successful, | |
2635 | * returns NULL and advances '*sp' to the first byte following the parsed | |
2636 | * string. On failure, returns a malloc()'d error message, does not modify | |
2637 | * '*sp', and does not properly initialize 'sf'. | |
2638 | * | |
2639 | * The syntax parsed from '*sp' takes the form "header[start..end]" where | |
2640 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2641 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2642 | * may both be omitted (the [] are still required) to indicate an entire | |
2643 | * field. */ | |
2644 | char * | |
2645 | mf_parse_subfield__(struct mf_subfield *sf, const char **sp) | |
2646 | { | |
2647 | const struct mf_field *field; | |
2648 | const char *name; | |
2649 | int start, end; | |
2650 | const char *s; | |
2651 | int name_len; | |
2652 | bool wild; | |
2653 | ||
2654 | s = *sp; | |
2655 | name = s; | |
2656 | name_len = strcspn(s, "["); | |
2657 | if (s[name_len] != '[') { | |
2658 | return xasprintf("%s: missing [ looking for field name", *sp); | |
2659 | } | |
2660 | ||
2661 | field = mf_parse_subfield_name(name, name_len, &wild); | |
2662 | if (!field) { | |
2663 | return xasprintf("%s: unknown field `%.*s'", *sp, name_len, s); | |
2664 | } | |
2665 | ||
2666 | s += name_len; | |
2667 | if (sscanf(s, "[%d..%d]", &start, &end) == 2) { | |
2668 | /* Nothing to do. */ | |
2669 | } else if (sscanf(s, "[%d]", &start) == 1) { | |
2670 | end = start; | |
2671 | } else if (!strncmp(s, "[]", 2)) { | |
2672 | start = 0; | |
2673 | end = field->n_bits - 1; | |
2674 | } else { | |
2675 | return xasprintf("%s: syntax error expecting [] or [<bit>] or " | |
2676 | "[<start>..<end>]", *sp); | |
2677 | } | |
2678 | s = strchr(s, ']') + 1; | |
2679 | ||
2680 | if (start > end) { | |
2681 | return xasprintf("%s: starting bit %d is after ending bit %d", | |
2682 | *sp, start, end); | |
2683 | } else if (start >= field->n_bits) { | |
2684 | return xasprintf("%s: starting bit %d is not valid because field is " | |
2685 | "only %d bits wide", *sp, start, field->n_bits); | |
2686 | } else if (end >= field->n_bits){ | |
2687 | return xasprintf("%s: ending bit %d is not valid because field is " | |
2688 | "only %d bits wide", *sp, end, field->n_bits); | |
2689 | } | |
2690 | ||
2691 | sf->field = field; | |
2692 | sf->ofs = start; | |
2693 | sf->n_bits = end - start + 1; | |
2694 | ||
2695 | *sp = s; | |
2696 | return NULL; | |
2697 | } | |
2698 | ||
2699 | /* Parses a subfield from the beginning of 's' into 'sf'. Returns the first | |
2700 | * byte in 's' following the parsed string. | |
2701 | * | |
2702 | * Exits with an error message if 's' has incorrect syntax. | |
2703 | * | |
2704 | * The syntax parsed from 's' takes the form "header[start..end]" where | |
2705 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2706 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2707 | * may both be omitted (the [] are still required) to indicate an entire | |
2708 | * field. */ | |
2709 | const char * | |
2710 | mf_parse_subfield(struct mf_subfield *sf, const char *s) | |
2711 | { | |
2712 | char *msg = mf_parse_subfield__(sf, &s); | |
2713 | if (msg) { | |
2714 | ovs_fatal(0, "%s", msg); | |
2715 | } | |
2716 | return s; | |
2717 | } | |
9bab681f IY |
2718 | |
2719 | void | |
2720 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
2721 | { | |
2722 | int i; | |
2723 | ||
2724 | for (i = 0; i < ARRAY_SIZE(subvalue->u8); i++) { | |
2725 | if (subvalue->u8[i]) { | |
2726 | ds_put_format(s, "0x%"PRIx8, subvalue->u8[i]); | |
2727 | for (i++; i < ARRAY_SIZE(subvalue->u8); i++) { | |
2728 | ds_put_format(s, "%02"PRIx8, subvalue->u8[i]); | |
2729 | } | |
2730 | return; | |
2731 | } | |
2732 | } | |
2733 | ds_put_char(s, '0'); | |
2734 | } |