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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 | 29 | #include "ofp-util.h" |
4663f9e0 | 30 | #include "ovs-thread.h" |
6a885fd0 BP |
31 | #include "packets.h" |
32 | #include "random.h" | |
33 | #include "shash.h" | |
34 | #include "socket-util.h" | |
35 | #include "unaligned.h" | |
816fd533 BP |
36 | #include "vlog.h" |
37 | ||
38 | VLOG_DEFINE_THIS_MODULE(meta_flow); | |
6a885fd0 BP |
39 | |
40 | #define MF_FIELD_SIZES(MEMBER) \ | |
41 | sizeof ((union mf_value *)0)->MEMBER, \ | |
42 | 8 * sizeof ((union mf_value *)0)->MEMBER | |
43 | ||
44 | static const struct mf_field mf_fields[MFF_N_IDS] = { | |
45 | /* ## -------- ## */ | |
46 | /* ## metadata ## */ | |
47 | /* ## -------- ## */ | |
48 | ||
49 | { | |
50 | MFF_TUN_ID, "tun_id", NULL, | |
51 | MF_FIELD_SIZES(be64), | |
0bdc4bec | 52 | MFM_FULLY, |
6a885fd0 BP |
53 | MFS_HEXADECIMAL, |
54 | MFP_NONE, | |
28da1f8f BP |
55 | true, |
56 | NXM_NX_TUN_ID, "NXM_NX_TUN_ID", | |
2f2eb46c | 57 | OXM_OF_TUNNEL_ID, "OXM_OF_TUNNEL_ID", |
4fe3445a PS |
58 | }, { |
59 | MFF_TUN_SRC, "tun_src", NULL, | |
60 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 61 | MFM_FULLY, |
4fe3445a PS |
62 | MFS_IPV4, |
63 | MFP_NONE, | |
0ad90c84 JR |
64 | true, |
65 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
66 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
4fe3445a PS |
67 | }, { |
68 | MFF_TUN_DST, "tun_dst", NULL, | |
69 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 70 | MFM_FULLY, |
4fe3445a PS |
71 | MFS_IPV4, |
72 | MFP_NONE, | |
0ad90c84 JR |
73 | true, |
74 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
75 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
4fe3445a PS |
76 | }, { |
77 | MFF_TUN_FLAGS, "tun_flags", NULL, | |
78 | MF_FIELD_SIZES(be16), | |
79 | MFM_NONE, | |
80 | MFS_TNL_FLAGS, | |
81 | MFP_NONE, | |
82 | false, | |
83 | 0, NULL, | |
84 | 0, NULL, | |
85 | }, { | |
86 | MFF_TUN_TOS, "tun_tos", NULL, | |
87 | MF_FIELD_SIZES(u8), | |
88 | MFM_NONE, | |
89 | MFS_DECIMAL, | |
90 | MFP_NONE, | |
91 | false, | |
92 | 0, NULL, | |
93 | 0, NULL, | |
94 | }, { | |
95 | MFF_TUN_TTL, "tun_ttl", NULL, | |
96 | MF_FIELD_SIZES(u8), | |
97 | MFM_NONE, | |
98 | MFS_DECIMAL, | |
99 | MFP_NONE, | |
100 | false, | |
101 | 0, NULL, | |
102 | 0, NULL, | |
969fc56c JS |
103 | }, { |
104 | MFF_METADATA, "metadata", NULL, | |
105 | MF_FIELD_SIZES(be64), | |
0bdc4bec | 106 | MFM_FULLY, |
969fc56c JS |
107 | MFS_HEXADECIMAL, |
108 | MFP_NONE, | |
109 | true, | |
110 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
111 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
6a885fd0 BP |
112 | }, { |
113 | MFF_IN_PORT, "in_port", NULL, | |
114 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 115 | MFM_NONE, |
6a885fd0 BP |
116 | MFS_OFP_PORT, |
117 | MFP_NONE, | |
557323cd | 118 | true, |
28da1f8f | 119 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
72333065 JR |
120 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
121 | }, { | |
122 | MFF_IN_PORT_OXM, "in_port_oxm", NULL, | |
123 | MF_FIELD_SIZES(be32), | |
124 | MFM_NONE, | |
125 | MFS_OFP_PORT_OXM, | |
126 | MFP_NONE, | |
127 | true, | |
128 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", | |
36f3999b | 129 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", |
1b567fb9 AA |
130 | }, { |
131 | MFF_SKB_PRIORITY, "skb_priority", NULL, | |
132 | MF_FIELD_SIZES(be32), | |
133 | MFM_NONE, | |
134 | MFS_HEXADECIMAL, | |
135 | MFP_NONE, | |
136 | false, | |
137 | 0, NULL, | |
138 | 0, NULL, | |
139 | }, { | |
140 | MFF_SKB_MARK, "skb_mark", NULL, | |
141 | MF_FIELD_SIZES(be32), | |
142 | MFM_NONE, | |
143 | MFS_HEXADECIMAL, | |
144 | MFP_NONE, | |
145 | false, | |
146 | 0, NULL, | |
147 | 0, NULL, | |
6a885fd0 BP |
148 | }, |
149 | ||
150 | #define REGISTER(IDX) \ | |
151 | { \ | |
152 | MFF_REG##IDX, "reg" #IDX, NULL, \ | |
153 | MF_FIELD_SIZES(be32), \ | |
0bdc4bec | 154 | MFM_FULLY, \ |
6a885fd0 BP |
155 | MFS_HEXADECIMAL, \ |
156 | MFP_NONE, \ | |
28da1f8f | 157 | true, \ |
b5e5143b BP |
158 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ |
159 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ | |
6a885fd0 BP |
160 | } |
161 | #if FLOW_N_REGS > 0 | |
162 | REGISTER(0), | |
163 | #endif | |
164 | #if FLOW_N_REGS > 1 | |
165 | REGISTER(1), | |
166 | #endif | |
167 | #if FLOW_N_REGS > 2 | |
168 | REGISTER(2), | |
169 | #endif | |
170 | #if FLOW_N_REGS > 3 | |
171 | REGISTER(3), | |
172 | #endif | |
173 | #if FLOW_N_REGS > 4 | |
d2c0fed9 JP |
174 | REGISTER(4), |
175 | #endif | |
176 | #if FLOW_N_REGS > 5 | |
e9358af6 EJ |
177 | REGISTER(5), |
178 | #endif | |
179 | #if FLOW_N_REGS > 6 | |
180 | REGISTER(6), | |
181 | #endif | |
182 | #if FLOW_N_REGS > 7 | |
183 | REGISTER(7), | |
184 | #endif | |
185 | #if FLOW_N_REGS > 8 | |
6a885fd0 BP |
186 | #error |
187 | #endif | |
188 | ||
189 | /* ## -- ## */ | |
190 | /* ## L2 ## */ | |
191 | /* ## -- ## */ | |
192 | ||
193 | { | |
194 | MFF_ETH_SRC, "eth_src", "dl_src", | |
195 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 196 | MFM_FULLY, |
6a885fd0 BP |
197 | MFS_ETHERNET, |
198 | MFP_NONE, | |
28da1f8f BP |
199 | true, |
200 | NXM_OF_ETH_SRC, "NXM_OF_ETH_SRC", | |
36f3999b | 201 | OXM_OF_ETH_SRC, "OXM_OF_ETH_SRC", |
6a885fd0 BP |
202 | }, { |
203 | MFF_ETH_DST, "eth_dst", "dl_dst", | |
204 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 205 | MFM_FULLY, |
6a885fd0 BP |
206 | MFS_ETHERNET, |
207 | MFP_NONE, | |
28da1f8f BP |
208 | true, |
209 | NXM_OF_ETH_DST, "NXM_OF_ETH_DST", | |
36f3999b | 210 | OXM_OF_ETH_DST, "OXM_OF_ETH_DST", |
6a885fd0 BP |
211 | }, { |
212 | MFF_ETH_TYPE, "eth_type", "dl_type", | |
213 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 214 | MFM_NONE, |
6a885fd0 BP |
215 | MFS_HEXADECIMAL, |
216 | MFP_NONE, | |
28da1f8f BP |
217 | false, |
218 | NXM_OF_ETH_TYPE, "NXM_OF_ETH_TYPE", | |
36f3999b | 219 | OXM_OF_ETH_TYPE, "OXM_OF_ETH_TYPE", |
6a885fd0 BP |
220 | }, |
221 | ||
222 | { | |
223 | MFF_VLAN_TCI, "vlan_tci", NULL, | |
224 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 225 | MFM_FULLY, |
6a885fd0 BP |
226 | MFS_HEXADECIMAL, |
227 | MFP_NONE, | |
28da1f8f BP |
228 | true, |
229 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", | |
b5e5143b | 230 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", |
6a885fd0 | 231 | }, { |
441c57a9 | 232 | MFF_DL_VLAN, "dl_vlan", NULL, |
6a885fd0 | 233 | sizeof(ovs_be16), 12, |
0bdc4bec | 234 | MFM_NONE, |
6a885fd0 BP |
235 | MFS_DECIMAL, |
236 | MFP_NONE, | |
28da1f8f | 237 | true, |
cc34bc8c BP |
238 | 0, NULL, |
239 | 0, NULL, | |
240 | }, { | |
241 | MFF_VLAN_VID, "vlan_vid", NULL, | |
242 | sizeof(ovs_be16), 12, | |
0bdc4bec | 243 | MFM_FULLY, |
cc34bc8c BP |
244 | MFS_DECIMAL, |
245 | MFP_NONE, | |
246 | true, | |
b5e5143b | 247 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
36f3999b | 248 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
6a885fd0 | 249 | }, { |
441c57a9 | 250 | MFF_DL_VLAN_PCP, "dl_vlan_pcp", NULL, |
6a885fd0 | 251 | 1, 3, |
0bdc4bec | 252 | MFM_NONE, |
6a885fd0 BP |
253 | MFS_DECIMAL, |
254 | MFP_NONE, | |
28da1f8f | 255 | true, |
cc34bc8c BP |
256 | 0, NULL, |
257 | 0, NULL, | |
258 | }, { | |
259 | MFF_VLAN_PCP, "vlan_pcp", NULL, | |
260 | 1, 3, | |
0bdc4bec | 261 | MFM_NONE, |
cc34bc8c | 262 | MFS_DECIMAL, |
8069b0da | 263 | MFP_VLAN_VID, |
cc34bc8c | 264 | true, |
b5e5143b | 265 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
36f3999b | 266 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
6a885fd0 BP |
267 | }, |
268 | ||
b02475c5 SH |
269 | /* ## ---- ## */ |
270 | /* ## L2.5 ## */ | |
271 | /* ## ---- ## */ | |
272 | { | |
273 | MFF_MPLS_LABEL, "mpls_label", NULL, | |
274 | 4, 20, | |
275 | MFM_NONE, | |
276 | MFS_DECIMAL, | |
277 | MFP_MPLS, | |
278 | true, | |
279 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
280 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
281 | }, { | |
282 | MFF_MPLS_TC, "mpls_tc", NULL, | |
283 | 1, 3, | |
284 | MFM_NONE, | |
285 | MFS_DECIMAL, | |
286 | MFP_MPLS, | |
287 | true, | |
288 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
289 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
290 | }, { | |
291 | MFF_MPLS_BOS, "mpls_bos", NULL, | |
292 | 1, 1, | |
293 | MFM_NONE, | |
294 | MFS_DECIMAL, | |
295 | MFP_MPLS, | |
296 | false, | |
297 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
298 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
299 | }, | |
300 | ||
6a885fd0 BP |
301 | /* ## -- ## */ |
302 | /* ## L3 ## */ | |
303 | /* ## -- ## */ | |
304 | ||
305 | { | |
306 | MFF_IPV4_SRC, "ip_src", "nw_src", | |
307 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 308 | MFM_FULLY, |
6a885fd0 BP |
309 | MFS_IPV4, |
310 | MFP_IPV4, | |
28da1f8f BP |
311 | true, |
312 | NXM_OF_IP_SRC, "NXM_OF_IP_SRC", | |
36f3999b | 313 | OXM_OF_IPV4_SRC, "OXM_OF_IPV4_SRC", |
6a885fd0 BP |
314 | }, { |
315 | MFF_IPV4_DST, "ip_dst", "nw_dst", | |
316 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 317 | MFM_FULLY, |
6a885fd0 BP |
318 | MFS_IPV4, |
319 | MFP_IPV4, | |
28da1f8f BP |
320 | true, |
321 | NXM_OF_IP_DST, "NXM_OF_IP_DST", | |
36f3999b | 322 | OXM_OF_IPV4_DST, "OXM_OF_IPV4_DST", |
6a885fd0 BP |
323 | }, |
324 | ||
325 | { | |
326 | MFF_IPV6_SRC, "ipv6_src", NULL, | |
327 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 328 | MFM_FULLY, |
6a885fd0 BP |
329 | MFS_IPV6, |
330 | MFP_IPV6, | |
28da1f8f BP |
331 | true, |
332 | NXM_NX_IPV6_SRC, "NXM_NX_IPV6_SRC", | |
36f3999b | 333 | OXM_OF_IPV6_SRC, "OXM_OF_IPV6_SRC", |
6a885fd0 BP |
334 | }, { |
335 | MFF_IPV6_DST, "ipv6_dst", NULL, | |
336 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 337 | MFM_FULLY, |
6a885fd0 BP |
338 | MFS_IPV6, |
339 | MFP_IPV6, | |
28da1f8f BP |
340 | true, |
341 | NXM_NX_IPV6_DST, "NXM_NX_IPV6_DST", | |
36f3999b | 342 | OXM_OF_IPV6_DST, "OXM_OF_IPV6_DST", |
6a885fd0 | 343 | }, |
fa8223b7 JP |
344 | { |
345 | MFF_IPV6_LABEL, "ipv6_label", NULL, | |
346 | 4, 20, | |
0bdc4bec | 347 | MFM_FULLY, |
fa8223b7 JP |
348 | MFS_HEXADECIMAL, |
349 | MFP_IPV6, | |
28da1f8f BP |
350 | false, |
351 | NXM_NX_IPV6_LABEL, "NXM_NX_IPV6_LABEL", | |
36f3999b | 352 | OXM_OF_IPV6_FLABEL, "OXM_OF_IPV6_FLABEL", |
fa8223b7 | 353 | }, |
6a885fd0 BP |
354 | |
355 | { | |
356 | MFF_IP_PROTO, "nw_proto", NULL, | |
357 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 358 | MFM_NONE, |
6a885fd0 BP |
359 | MFS_DECIMAL, |
360 | MFP_IP_ANY, | |
28da1f8f BP |
361 | false, |
362 | NXM_OF_IP_PROTO, "NXM_OF_IP_PROTO", | |
36f3999b | 363 | OXM_OF_IP_PROTO, "OXM_OF_IP_PROTO", |
6a885fd0 | 364 | }, { |
530180fd | 365 | MFF_IP_DSCP, "nw_tos", NULL, |
6a885fd0 | 366 | MF_FIELD_SIZES(u8), |
0bdc4bec | 367 | MFM_NONE, |
6a885fd0 BP |
368 | MFS_DECIMAL, |
369 | MFP_IP_ANY, | |
28da1f8f | 370 | true, |
36f3999b | 371 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
1638b906 BP |
372 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
373 | }, { | |
374 | MFF_IP_DSCP_SHIFTED, "nw_tos_shifted", NULL, | |
375 | MF_FIELD_SIZES(u8), | |
376 | MFM_NONE, | |
377 | MFS_DECIMAL, | |
378 | MFP_IP_ANY, | |
379 | true, | |
380 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", | |
36f3999b | 381 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", |
530180fd JP |
382 | }, { |
383 | MFF_IP_ECN, "nw_ecn", NULL, | |
384 | 1, 2, | |
0bdc4bec | 385 | MFM_NONE, |
530180fd JP |
386 | MFS_DECIMAL, |
387 | MFP_IP_ANY, | |
28da1f8f BP |
388 | true, |
389 | NXM_NX_IP_ECN, "NXM_NX_IP_ECN", | |
36f3999b | 390 | OXM_OF_IP_ECN, "OXM_OF_IP_ECN", |
a61680c6 JP |
391 | }, { |
392 | MFF_IP_TTL, "nw_ttl", NULL, | |
393 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 394 | MFM_NONE, |
a61680c6 JP |
395 | MFS_DECIMAL, |
396 | MFP_IP_ANY, | |
28da1f8f | 397 | true, |
36f3999b | 398 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
b5e5143b | 399 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
7257b535 BP |
400 | }, { |
401 | MFF_IP_FRAG, "ip_frag", NULL, | |
402 | 1, 2, | |
0bdc4bec | 403 | MFM_FULLY, |
7257b535 BP |
404 | MFS_FRAG, |
405 | MFP_IP_ANY, | |
28da1f8f | 406 | false, |
36f3999b | 407 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
b5e5143b | 408 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
6a885fd0 BP |
409 | }, |
410 | ||
411 | { | |
412 | MFF_ARP_OP, "arp_op", NULL, | |
413 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 414 | MFM_NONE, |
6a885fd0 BP |
415 | MFS_DECIMAL, |
416 | MFP_ARP, | |
28da1f8f BP |
417 | false, |
418 | NXM_OF_ARP_OP, "NXM_OF_ARP_OP", | |
36f3999b | 419 | OXM_OF_ARP_OP, "OXM_OF_ARP_OP", |
6a885fd0 BP |
420 | }, { |
421 | MFF_ARP_SPA, "arp_spa", NULL, | |
422 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 423 | MFM_FULLY, |
6a885fd0 BP |
424 | MFS_IPV4, |
425 | MFP_ARP, | |
28da1f8f BP |
426 | false, |
427 | NXM_OF_ARP_SPA, "NXM_OF_ARP_SPA", | |
36f3999b | 428 | OXM_OF_ARP_SPA, "OXM_OF_ARP_SPA", |
6a885fd0 BP |
429 | }, { |
430 | MFF_ARP_TPA, "arp_tpa", NULL, | |
431 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 432 | MFM_FULLY, |
6a885fd0 BP |
433 | MFS_IPV4, |
434 | MFP_ARP, | |
28da1f8f BP |
435 | false, |
436 | NXM_OF_ARP_TPA, "NXM_OF_ARP_TPA", | |
36f3999b | 437 | OXM_OF_ARP_TPA, "OXM_OF_ARP_TPA", |
6a885fd0 BP |
438 | }, { |
439 | MFF_ARP_SHA, "arp_sha", NULL, | |
440 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 441 | MFM_FULLY, |
6a885fd0 BP |
442 | MFS_ETHERNET, |
443 | MFP_ARP, | |
28da1f8f BP |
444 | false, |
445 | NXM_NX_ARP_SHA, "NXM_NX_ARP_SHA", | |
36f3999b | 446 | OXM_OF_ARP_SHA, "OXM_OF_ARP_SHA", |
6a885fd0 BP |
447 | }, { |
448 | MFF_ARP_THA, "arp_tha", NULL, | |
449 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 450 | MFM_FULLY, |
6a885fd0 BP |
451 | MFS_ETHERNET, |
452 | MFP_ARP, | |
28da1f8f BP |
453 | false, |
454 | NXM_NX_ARP_THA, "NXM_NX_ARP_THA", | |
36f3999b | 455 | OXM_OF_ARP_THA, "OXM_OF_ARP_THA", |
6a885fd0 BP |
456 | }, |
457 | ||
458 | /* ## -- ## */ | |
459 | /* ## L4 ## */ | |
460 | /* ## -- ## */ | |
461 | ||
462 | { | |
463 | MFF_TCP_SRC, "tcp_src", "tp_src", | |
464 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 465 | MFM_FULLY, |
6a885fd0 BP |
466 | MFS_DECIMAL, |
467 | MFP_TCP, | |
28da1f8f BP |
468 | true, |
469 | NXM_OF_TCP_SRC, "NXM_OF_TCP_SRC", | |
36f3999b | 470 | OXM_OF_TCP_SRC, "OXM_OF_TCP_SRC", |
6a885fd0 BP |
471 | }, { |
472 | MFF_TCP_DST, "tcp_dst", "tp_dst", | |
473 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 474 | MFM_FULLY, |
6a885fd0 BP |
475 | MFS_DECIMAL, |
476 | MFP_TCP, | |
28da1f8f BP |
477 | true, |
478 | NXM_OF_TCP_DST, "NXM_OF_TCP_DST", | |
36f3999b | 479 | OXM_OF_TCP_DST, "OXM_OF_TCP_DST", |
6a885fd0 BP |
480 | }, |
481 | ||
482 | { | |
483 | MFF_UDP_SRC, "udp_src", NULL, | |
484 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 485 | MFM_FULLY, |
6a885fd0 BP |
486 | MFS_DECIMAL, |
487 | MFP_UDP, | |
28da1f8f BP |
488 | true, |
489 | NXM_OF_UDP_SRC, "NXM_OF_UDP_SRC", | |
36f3999b | 490 | OXM_OF_UDP_SRC, "OXM_OF_UDP_SRC", |
6a885fd0 BP |
491 | }, { |
492 | MFF_UDP_DST, "udp_dst", NULL, | |
493 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 494 | MFM_FULLY, |
6a885fd0 BP |
495 | MFS_DECIMAL, |
496 | MFP_UDP, | |
28da1f8f BP |
497 | true, |
498 | NXM_OF_UDP_DST, "NXM_OF_UDP_DST", | |
36f3999b | 499 | OXM_OF_UDP_DST, "OXM_OF_UDP_DST", |
6a885fd0 BP |
500 | }, |
501 | ||
502 | { | |
268a95e0 | 503 | MFF_ICMPV4_TYPE, "icmp_type", NULL, |
6a885fd0 | 504 | MF_FIELD_SIZES(u8), |
0bdc4bec | 505 | MFM_NONE, |
6a885fd0 | 506 | MFS_DECIMAL, |
268a95e0 | 507 | MFP_ICMPV4, |
28da1f8f BP |
508 | false, |
509 | NXM_OF_ICMP_TYPE, "NXM_OF_ICMP_TYPE", | |
36f3999b | 510 | OXM_OF_ICMPV4_TYPE, "OXM_OF_ICMPV4_TYPE", |
6a885fd0 | 511 | }, { |
268a95e0 | 512 | MFF_ICMPV4_CODE, "icmp_code", NULL, |
6a885fd0 | 513 | MF_FIELD_SIZES(u8), |
0bdc4bec | 514 | MFM_NONE, |
6a885fd0 | 515 | MFS_DECIMAL, |
268a95e0 | 516 | MFP_ICMPV4, |
28da1f8f BP |
517 | false, |
518 | NXM_OF_ICMP_CODE, "NXM_OF_ICMP_CODE", | |
36f3999b | 519 | OXM_OF_ICMPV4_CODE, "OXM_OF_ICMPV4_CODE", |
28da1f8f BP |
520 | }, |
521 | ||
522 | { | |
268a95e0 BP |
523 | MFF_ICMPV6_TYPE, "icmpv6_type", NULL, |
524 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 525 | MFM_NONE, |
268a95e0 BP |
526 | MFS_DECIMAL, |
527 | MFP_ICMPV6, | |
28da1f8f BP |
528 | false, |
529 | NXM_NX_ICMPV6_TYPE, "NXM_NX_ICMPV6_TYPE", | |
36f3999b | 530 | OXM_OF_ICMPV6_TYPE, "OXM_OF_ICMPV6_TYPE", |
268a95e0 BP |
531 | }, { |
532 | MFF_ICMPV6_CODE, "icmpv6_code", NULL, | |
533 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 534 | MFM_NONE, |
268a95e0 BP |
535 | MFS_DECIMAL, |
536 | MFP_ICMPV6, | |
28da1f8f BP |
537 | false, |
538 | NXM_NX_ICMPV6_CODE, "NXM_NX_ICMPV6_CODE", | |
36f3999b | 539 | OXM_OF_ICMPV6_CODE, "OXM_OF_ICMPV6_CODE", |
6a885fd0 BP |
540 | }, |
541 | ||
542 | /* ## ---- ## */ | |
543 | /* ## L"5" ## */ | |
544 | /* ## ---- ## */ | |
545 | ||
546 | { | |
547 | MFF_ND_TARGET, "nd_target", NULL, | |
548 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 549 | MFM_FULLY, |
6a885fd0 BP |
550 | MFS_IPV6, |
551 | MFP_ND, | |
28da1f8f BP |
552 | false, |
553 | NXM_NX_ND_TARGET, "NXM_NX_ND_TARGET", | |
36f3999b | 554 | OXM_OF_IPV6_ND_TARGET, "OXM_OF_IPV6_ND_TARGET", |
6a885fd0 BP |
555 | }, { |
556 | MFF_ND_SLL, "nd_sll", NULL, | |
557 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 558 | MFM_FULLY, |
6a885fd0 BP |
559 | MFS_ETHERNET, |
560 | MFP_ND_SOLICIT, | |
28da1f8f BP |
561 | false, |
562 | NXM_NX_ND_SLL, "NXM_NX_ND_SLL", | |
36f3999b | 563 | OXM_OF_IPV6_ND_SLL, "OXM_OF_IPV6_ND_SLL", |
6a885fd0 BP |
564 | }, { |
565 | MFF_ND_TLL, "nd_tll", NULL, | |
566 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 567 | MFM_FULLY, |
6a885fd0 BP |
568 | MFS_ETHERNET, |
569 | MFP_ND_ADVERT, | |
28da1f8f BP |
570 | false, |
571 | NXM_NX_ND_TLL, "NXM_NX_ND_TLL", | |
36f3999b | 572 | OXM_OF_IPV6_ND_TLL, "OXM_OF_IPV6_ND_TLL", |
6a885fd0 BP |
573 | } |
574 | }; | |
575 | ||
b5e5143b | 576 | /* Maps an NXM or OXM header value to an mf_field. */ |
28da1f8f | 577 | struct nxm_field { |
b5e5143b BP |
578 | struct hmap_node hmap_node; /* In 'all_fields' hmap. */ |
579 | uint32_t header; /* NXM or OXM header value. */ | |
28da1f8f BP |
580 | const struct mf_field *mf; |
581 | }; | |
582 | ||
b5e5143b | 583 | /* Contains 'struct nxm_field's. */ |
4663f9e0 BP |
584 | static struct hmap all_fields; |
585 | ||
586 | /* Maps from an mf_field's 'name' or 'extra_name' to the mf_field. */ | |
587 | static struct shash mf_by_name; | |
28da1f8f | 588 | |
816fd533 BP |
589 | /* Rate limit for parse errors. These always indicate a bug in an OpenFlow |
590 | * controller and so there's not much point in showing a lot of them. */ | |
591 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
592 | ||
b5e5143b | 593 | const struct mf_field *mf_from_nxm_header__(uint32_t header); |
4663f9e0 | 594 | static void nxm_init(void); |
b5e5143b | 595 | |
6a885fd0 BP |
596 | /* Returns the field with the given 'id'. */ |
597 | const struct mf_field * | |
598 | mf_from_id(enum mf_field_id id) | |
599 | { | |
cb22974d | 600 | ovs_assert((unsigned int) id < MFF_N_IDS); |
6a885fd0 BP |
601 | return &mf_fields[id]; |
602 | } | |
603 | ||
604 | /* Returns the field with the given 'name', or a null pointer if no field has | |
605 | * that name. */ | |
606 | const struct mf_field * | |
607 | mf_from_name(const char *name) | |
608 | { | |
4663f9e0 | 609 | nxm_init(); |
6a885fd0 BP |
610 | return shash_find_data(&mf_by_name, name); |
611 | } | |
612 | ||
28da1f8f | 613 | static void |
b5e5143b | 614 | add_nxm_field(uint32_t header, const struct mf_field *mf) |
28da1f8f BP |
615 | { |
616 | struct nxm_field *f; | |
617 | ||
618 | f = xmalloc(sizeof *f); | |
b5e5143b BP |
619 | hmap_insert(&all_fields, &f->hmap_node, hash_int(header, 0)); |
620 | f->header = header; | |
28da1f8f BP |
621 | f->mf = mf; |
622 | } | |
623 | ||
b5ae8913 SH |
624 | static void |
625 | nxm_init_add_field(const struct mf_field *mf, uint32_t header) | |
626 | { | |
b5e5143b | 627 | if (header) { |
cb22974d | 628 | ovs_assert(!mf_from_nxm_header__(header)); |
b5e5143b BP |
629 | add_nxm_field(header, mf); |
630 | if (mf->maskable != MFM_NONE) { | |
631 | add_nxm_field(NXM_MAKE_WILD_HEADER(header), mf); | |
632 | } | |
b5ae8913 | 633 | } |
b5ae8913 | 634 | } |
b5ae8913 | 635 | |
28da1f8f | 636 | static void |
4663f9e0 | 637 | nxm_do_init(void) |
28da1f8f BP |
638 | { |
639 | const struct mf_field *mf; | |
640 | ||
4663f9e0 BP |
641 | hmap_init(&all_fields); |
642 | shash_init(&mf_by_name); | |
28da1f8f | 643 | for (mf = mf_fields; mf < &mf_fields[MFF_N_IDS]; mf++) { |
b5ae8913 | 644 | nxm_init_add_field(mf, mf->nxm_header); |
b5e5143b BP |
645 | if (mf->oxm_header != mf->nxm_header) { |
646 | nxm_init_add_field(mf, mf->oxm_header); | |
647 | } | |
4663f9e0 BP |
648 | |
649 | shash_add_once(&mf_by_name, mf->name, mf); | |
650 | if (mf->extra_name) { | |
651 | shash_add_once(&mf_by_name, mf->extra_name, mf); | |
652 | } | |
28da1f8f | 653 | } |
28da1f8f BP |
654 | } |
655 | ||
4663f9e0 BP |
656 | static void |
657 | nxm_init(void) | |
658 | { | |
659 | static pthread_once_t once = PTHREAD_ONCE_INIT; | |
660 | pthread_once(&once, nxm_do_init); | |
661 | } | |
662 | ||
28da1f8f BP |
663 | const struct mf_field * |
664 | mf_from_nxm_header(uint32_t header) | |
665 | { | |
4663f9e0 | 666 | nxm_init(); |
b5e5143b BP |
667 | return mf_from_nxm_header__(header); |
668 | } | |
28da1f8f | 669 | |
b5e5143b BP |
670 | const struct mf_field * |
671 | mf_from_nxm_header__(uint32_t header) | |
672 | { | |
673 | const struct nxm_field *f; | |
674 | ||
675 | HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0), &all_fields) { | |
676 | if (f->header == header) { | |
28da1f8f BP |
677 | return f->mf; |
678 | } | |
679 | } | |
680 | ||
681 | return NULL; | |
682 | } | |
683 | ||
6a885fd0 BP |
684 | /* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc' |
685 | * specifies at least one bit in the field. | |
686 | * | |
687 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
688 | * meets 'mf''s prerequisites. */ | |
689 | bool | |
690 | mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) | |
691 | { | |
692 | switch (mf->id) { | |
4fe3445a | 693 | case MFF_TUN_SRC: |
0ad90c84 | 694 | return !wc->masks.tunnel.ip_src; |
4fe3445a | 695 | case MFF_TUN_DST: |
0ad90c84 JR |
696 | return !wc->masks.tunnel.ip_dst; |
697 | case MFF_TUN_ID: | |
4fe3445a PS |
698 | case MFF_TUN_TOS: |
699 | case MFF_TUN_TTL: | |
700 | case MFF_TUN_FLAGS: | |
296e07ac | 701 | return !wc->masks.tunnel.tun_id; |
969fc56c | 702 | case MFF_METADATA: |
26720e24 | 703 | return !wc->masks.metadata; |
0bdc4bec | 704 | case MFF_IN_PORT: |
72333065 | 705 | case MFF_IN_PORT_OXM: |
4e022ec0 | 706 | return !wc->masks.in_port.ofp_port; |
1b567fb9 AA |
707 | case MFF_SKB_PRIORITY: |
708 | return !wc->masks.skb_priority; | |
709 | case MFF_SKB_MARK: | |
710 | return !wc->masks.skb_mark; | |
0d7e2fe4 | 711 | CASE_MFF_REGS: |
26720e24 | 712 | return !wc->masks.regs[mf->id - MFF_REG0]; |
6a885fd0 | 713 | |
73c0ce34 | 714 | case MFF_ETH_SRC: |
26720e24 | 715 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 716 | case MFF_ETH_DST: |
26720e24 | 717 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 718 | case MFF_ETH_TYPE: |
26720e24 | 719 | return !wc->masks.dl_type; |
6a885fd0 | 720 | |
e878338b SH |
721 | case MFF_ARP_SHA: |
722 | case MFF_ND_SLL: | |
26720e24 | 723 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
724 | |
725 | case MFF_ARP_THA: | |
726 | case MFF_ND_TLL: | |
26720e24 | 727 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 728 | |
6a885fd0 | 729 | case MFF_VLAN_TCI: |
26720e24 | 730 | return !wc->masks.vlan_tci; |
441c57a9 | 731 | case MFF_DL_VLAN: |
26720e24 | 732 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 733 | case MFF_VLAN_VID: |
26720e24 | 734 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 735 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 736 | case MFF_VLAN_PCP: |
26720e24 | 737 | return !(wc->masks.vlan_tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 738 | |
b02475c5 SH |
739 | case MFF_MPLS_LABEL: |
740 | return !(wc->masks.mpls_lse & htonl(MPLS_LABEL_MASK)); | |
741 | case MFF_MPLS_TC: | |
742 | return !(wc->masks.mpls_lse & htonl(MPLS_TC_MASK)); | |
743 | case MFF_MPLS_BOS: | |
744 | return !(wc->masks.mpls_lse & htonl(MPLS_BOS_MASK)); | |
745 | ||
6a885fd0 | 746 | case MFF_IPV4_SRC: |
26720e24 | 747 | return !wc->masks.nw_src; |
6a885fd0 | 748 | case MFF_IPV4_DST: |
26720e24 | 749 | return !wc->masks.nw_dst; |
6a885fd0 BP |
750 | |
751 | case MFF_IPV6_SRC: | |
26720e24 | 752 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 753 | case MFF_IPV6_DST: |
26720e24 | 754 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 755 | |
32455024 | 756 | case MFF_IPV6_LABEL: |
26720e24 | 757 | return !wc->masks.ipv6_label; |
32455024 | 758 | |
851d3105 | 759 | case MFF_IP_PROTO: |
26720e24 | 760 | return !wc->masks.nw_proto; |
5d9499c4 | 761 | case MFF_IP_DSCP: |
1638b906 | 762 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 763 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 764 | case MFF_IP_ECN: |
26720e24 | 765 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 766 | case MFF_IP_TTL: |
26720e24 | 767 | return !wc->masks.nw_ttl; |
5d9499c4 | 768 | |
47284b1f | 769 | case MFF_ND_TARGET: |
26720e24 | 770 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 771 | |
7257b535 | 772 | case MFF_IP_FRAG: |
26720e24 | 773 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 774 | |
851d3105 | 775 | case MFF_ARP_OP: |
26720e24 | 776 | return !wc->masks.nw_proto; |
6a885fd0 | 777 | case MFF_ARP_SPA: |
26720e24 | 778 | return !wc->masks.nw_src; |
6a885fd0 | 779 | case MFF_ARP_TPA: |
26720e24 | 780 | return !wc->masks.nw_dst; |
6a885fd0 | 781 | |
73f33563 BP |
782 | case MFF_TCP_SRC: |
783 | case MFF_UDP_SRC: | |
784 | case MFF_ICMPV4_TYPE: | |
785 | case MFF_ICMPV6_TYPE: | |
26720e24 | 786 | return !wc->masks.tp_src; |
73f33563 BP |
787 | case MFF_TCP_DST: |
788 | case MFF_UDP_DST: | |
789 | case MFF_ICMPV4_CODE: | |
790 | case MFF_ICMPV6_CODE: | |
26720e24 | 791 | return !wc->masks.tp_dst; |
73f33563 | 792 | |
6a885fd0 BP |
793 | case MFF_N_IDS: |
794 | default: | |
795 | NOT_REACHED(); | |
796 | } | |
797 | } | |
798 | ||
799 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
800 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
801 | * purposes, or to 0 if it is wildcarded. | |
802 | * | |
803 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
804 | * meets 'mf''s prerequisites. */ | |
805 | void | |
806 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
807 | union mf_value *mask) | |
808 | { | |
fb15feb0 | 809 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
810 | } |
811 | ||
812 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
813 | * if the mask is valid, false otherwise. */ | |
814 | bool | |
815 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
816 | { | |
817 | switch (mf->maskable) { | |
818 | case MFM_NONE: | |
819 | return (is_all_zeros((const uint8_t *) mask, mf->n_bytes) || | |
820 | is_all_ones((const uint8_t *) mask, mf->n_bytes)); | |
821 | ||
822 | case MFM_FULLY: | |
823 | return true; | |
6a885fd0 BP |
824 | } |
825 | ||
826 | NOT_REACHED(); | |
827 | } | |
828 | ||
6a885fd0 BP |
829 | static bool |
830 | is_icmpv4(const struct flow *flow) | |
831 | { | |
832 | return (flow->dl_type == htons(ETH_TYPE_IP) | |
833 | && flow->nw_proto == IPPROTO_ICMP); | |
834 | } | |
835 | ||
836 | static bool | |
837 | is_icmpv6(const struct flow *flow) | |
838 | { | |
839 | return (flow->dl_type == htons(ETH_TYPE_IPV6) | |
840 | && flow->nw_proto == IPPROTO_ICMPV6); | |
841 | } | |
842 | ||
843 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. */ | |
844 | bool | |
845 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow) | |
846 | { | |
847 | switch (mf->prereqs) { | |
848 | case MFP_NONE: | |
849 | return true; | |
850 | ||
851 | case MFP_ARP: | |
8087f5ff MM |
852 | return (flow->dl_type == htons(ETH_TYPE_ARP) || |
853 | flow->dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 BP |
854 | case MFP_IPV4: |
855 | return flow->dl_type == htons(ETH_TYPE_IP); | |
856 | case MFP_IPV6: | |
857 | return flow->dl_type == htons(ETH_TYPE_IPV6); | |
8069b0da | 858 | case MFP_VLAN_VID: |
5921e99a | 859 | return (flow->vlan_tci & htons(VLAN_CFI)) != 0; |
b02475c5 SH |
860 | case MFP_MPLS: |
861 | return eth_type_mpls(flow->dl_type); | |
6a885fd0 BP |
862 | case MFP_IP_ANY: |
863 | return is_ip_any(flow); | |
864 | ||
865 | case MFP_TCP: | |
866 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_TCP; | |
867 | case MFP_UDP: | |
868 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_UDP; | |
268a95e0 BP |
869 | case MFP_ICMPV4: |
870 | return is_icmpv4(flow); | |
6a885fd0 BP |
871 | case MFP_ICMPV6: |
872 | return is_icmpv6(flow); | |
6a885fd0 BP |
873 | |
874 | case MFP_ND: | |
875 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
876 | && flow->tp_dst == htons(0) |
877 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || | |
878 | flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
879 | case MFP_ND_SOLICIT: |
880 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
881 | && flow->tp_dst == htons(0) |
882 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT))); | |
6a885fd0 BP |
883 | case MFP_ND_ADVERT: |
884 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
885 | && flow->tp_dst == htons(0) |
886 | && (flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
887 | } |
888 | ||
889 | NOT_REACHED(); | |
890 | } | |
891 | ||
892 | /* Returns true if 'value' may be a valid value *as part of a masked match*, | |
893 | * false otherwise. | |
894 | * | |
895 | * A value is not rejected just because it is not valid for the field in | |
896 | * question, but only if it doesn't make sense to test the bits in question at | |
897 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
898 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
899 | * it is still legitimate to test just for those bits (see the documentation | |
900 | * for NXM_OF_VLAN_TCI in nicira-ext.h). On the other hand, there is never a | |
530180fd | 901 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
902 | bool |
903 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
904 | { | |
905 | switch (mf->id) { | |
906 | case MFF_TUN_ID: | |
4fe3445a PS |
907 | case MFF_TUN_SRC: |
908 | case MFF_TUN_DST: | |
909 | case MFF_TUN_TOS: | |
910 | case MFF_TUN_TTL: | |
911 | case MFF_TUN_FLAGS: | |
969fc56c | 912 | case MFF_METADATA: |
6a885fd0 | 913 | case MFF_IN_PORT: |
1b567fb9 AA |
914 | case MFF_SKB_PRIORITY: |
915 | case MFF_SKB_MARK: | |
0d7e2fe4 | 916 | CASE_MFF_REGS: |
6a885fd0 BP |
917 | case MFF_ETH_SRC: |
918 | case MFF_ETH_DST: | |
919 | case MFF_ETH_TYPE: | |
920 | case MFF_VLAN_TCI: | |
921 | case MFF_IPV4_SRC: | |
922 | case MFF_IPV4_DST: | |
923 | case MFF_IPV6_SRC: | |
924 | case MFF_IPV6_DST: | |
925 | case MFF_IP_PROTO: | |
a61680c6 | 926 | case MFF_IP_TTL: |
6a885fd0 BP |
927 | case MFF_ARP_SPA: |
928 | case MFF_ARP_TPA: | |
929 | case MFF_ARP_SHA: | |
930 | case MFF_ARP_THA: | |
931 | case MFF_TCP_SRC: | |
932 | case MFF_TCP_DST: | |
933 | case MFF_UDP_SRC: | |
934 | case MFF_UDP_DST: | |
268a95e0 BP |
935 | case MFF_ICMPV4_TYPE: |
936 | case MFF_ICMPV4_CODE: | |
937 | case MFF_ICMPV6_TYPE: | |
938 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
939 | case MFF_ND_TARGET: |
940 | case MFF_ND_SLL: | |
941 | case MFF_ND_TLL: | |
942 | return true; | |
943 | ||
72333065 | 944 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 945 | ofp_port_t port; |
72333065 JR |
946 | return !ofputil_port_from_ofp11(value->be32, &port); |
947 | } | |
948 | ||
530180fd | 949 | case MFF_IP_DSCP: |
7257b535 | 950 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
951 | case MFF_IP_DSCP_SHIFTED: |
952 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
953 | case MFF_IP_ECN: |
954 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 955 | case MFF_IP_FRAG: |
eadef313 | 956 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
6a885fd0 BP |
957 | |
958 | case MFF_ARP_OP: | |
959 | return !(value->be16 & htons(0xff00)); | |
960 | ||
441c57a9 | 961 | case MFF_DL_VLAN: |
6a885fd0 | 962 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
963 | case MFF_VLAN_VID: |
964 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 965 | |
441c57a9 | 966 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 967 | case MFF_VLAN_PCP: |
24016f5a | 968 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 969 | |
fa8223b7 JP |
970 | case MFF_IPV6_LABEL: |
971 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
972 | ||
b02475c5 SH |
973 | case MFF_MPLS_LABEL: |
974 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
975 | ||
976 | case MFF_MPLS_TC: | |
977 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
978 | ||
979 | case MFF_MPLS_BOS: | |
980 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
981 | ||
6a885fd0 BP |
982 | case MFF_N_IDS: |
983 | default: | |
984 | NOT_REACHED(); | |
985 | } | |
986 | } | |
987 | ||
988 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
989 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
990 | void | |
991 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
992 | union mf_value *value) | |
993 | { | |
994 | switch (mf->id) { | |
995 | case MFF_TUN_ID: | |
296e07ac | 996 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 997 | break; |
4fe3445a PS |
998 | case MFF_TUN_SRC: |
999 | value->be32 = flow->tunnel.ip_src; | |
1000 | break; | |
1001 | case MFF_TUN_DST: | |
1002 | value->be32 = flow->tunnel.ip_dst; | |
1003 | break; | |
1004 | case MFF_TUN_FLAGS: | |
1005 | value->be16 = htons(flow->tunnel.flags); | |
1006 | break; | |
1007 | case MFF_TUN_TTL: | |
1008 | value->u8 = flow->tunnel.ip_ttl; | |
1009 | break; | |
1010 | case MFF_TUN_TOS: | |
1011 | value->u8 = flow->tunnel.ip_tos; | |
1012 | break; | |
1013 | ||
969fc56c JS |
1014 | case MFF_METADATA: |
1015 | value->be64 = flow->metadata; | |
1016 | break; | |
6a885fd0 BP |
1017 | |
1018 | case MFF_IN_PORT: | |
4e022ec0 | 1019 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 1020 | break; |
72333065 | 1021 | case MFF_IN_PORT_OXM: |
4e022ec0 | 1022 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 JR |
1023 | break; |
1024 | ||
1b567fb9 | 1025 | case MFF_SKB_PRIORITY: |
a81f0a44 | 1026 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
1027 | break; |
1028 | ||
1029 | case MFF_SKB_MARK: | |
a81f0a44 | 1030 | value->be32 = htonl(flow->skb_mark); |
1b567fb9 AA |
1031 | break; |
1032 | ||
0d7e2fe4 | 1033 | CASE_MFF_REGS: |
2f98b0b7 | 1034 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
1035 | break; |
1036 | ||
1037 | case MFF_ETH_SRC: | |
1038 | memcpy(value->mac, flow->dl_src, ETH_ADDR_LEN); | |
1039 | break; | |
1040 | ||
1041 | case MFF_ETH_DST: | |
1042 | memcpy(value->mac, flow->dl_dst, ETH_ADDR_LEN); | |
1043 | break; | |
1044 | ||
1045 | case MFF_ETH_TYPE: | |
1046 | value->be16 = flow->dl_type; | |
1047 | break; | |
1048 | ||
1049 | case MFF_VLAN_TCI: | |
1050 | value->be16 = flow->vlan_tci; | |
1051 | break; | |
1052 | ||
441c57a9 | 1053 | case MFF_DL_VLAN: |
6a885fd0 BP |
1054 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK); |
1055 | break; | |
cc34bc8c BP |
1056 | case MFF_VLAN_VID: |
1057 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI); | |
1058 | break; | |
6a885fd0 | 1059 | |
441c57a9 | 1060 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1061 | case MFF_VLAN_PCP: |
6a885fd0 BP |
1062 | value->u8 = vlan_tci_to_pcp(flow->vlan_tci); |
1063 | break; | |
1064 | ||
b02475c5 SH |
1065 | case MFF_MPLS_LABEL: |
1066 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse)); | |
1067 | break; | |
1068 | ||
1069 | case MFF_MPLS_TC: | |
1070 | value->u8 = mpls_lse_to_tc(flow->mpls_lse); | |
1071 | break; | |
1072 | ||
1073 | case MFF_MPLS_BOS: | |
1074 | value->u8 = mpls_lse_to_bos(flow->mpls_lse); | |
1075 | break; | |
1076 | ||
6a885fd0 BP |
1077 | case MFF_IPV4_SRC: |
1078 | value->be32 = flow->nw_src; | |
1079 | break; | |
1080 | ||
1081 | case MFF_IPV4_DST: | |
1082 | value->be32 = flow->nw_dst; | |
1083 | break; | |
1084 | ||
1085 | case MFF_IPV6_SRC: | |
1086 | value->ipv6 = flow->ipv6_src; | |
1087 | break; | |
1088 | ||
1089 | case MFF_IPV6_DST: | |
1090 | value->ipv6 = flow->ipv6_dst; | |
1091 | break; | |
1092 | ||
fa8223b7 JP |
1093 | case MFF_IPV6_LABEL: |
1094 | value->be32 = flow->ipv6_label; | |
1095 | break; | |
1096 | ||
6a885fd0 BP |
1097 | case MFF_IP_PROTO: |
1098 | value->u8 = flow->nw_proto; | |
1099 | break; | |
1100 | ||
530180fd | 1101 | case MFF_IP_DSCP: |
eadef313 | 1102 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
1103 | break; |
1104 | ||
1638b906 BP |
1105 | case MFF_IP_DSCP_SHIFTED: |
1106 | value->u8 = flow->nw_tos >> 2; | |
1107 | break; | |
1108 | ||
530180fd | 1109 | case MFF_IP_ECN: |
eadef313 | 1110 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
1111 | break; |
1112 | ||
a61680c6 JP |
1113 | case MFF_IP_TTL: |
1114 | value->u8 = flow->nw_ttl; | |
1115 | break; | |
1116 | ||
7257b535 | 1117 | case MFF_IP_FRAG: |
eadef313 | 1118 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
1119 | break; |
1120 | ||
1121 | case MFF_ARP_OP: | |
1122 | value->be16 = htons(flow->nw_proto); | |
1123 | break; | |
1124 | ||
1125 | case MFF_ARP_SPA: | |
1126 | value->be32 = flow->nw_src; | |
1127 | break; | |
1128 | ||
1129 | case MFF_ARP_TPA: | |
1130 | value->be32 = flow->nw_dst; | |
1131 | break; | |
1132 | ||
1133 | case MFF_ARP_SHA: | |
1134 | case MFF_ND_SLL: | |
1135 | memcpy(value->mac, flow->arp_sha, ETH_ADDR_LEN); | |
1136 | break; | |
1137 | ||
1138 | case MFF_ARP_THA: | |
1139 | case MFF_ND_TLL: | |
1140 | memcpy(value->mac, flow->arp_tha, ETH_ADDR_LEN); | |
1141 | break; | |
1142 | ||
1143 | case MFF_TCP_SRC: | |
6a885fd0 BP |
1144 | case MFF_UDP_SRC: |
1145 | value->be16 = flow->tp_src; | |
1146 | break; | |
1147 | ||
71baec06 | 1148 | case MFF_TCP_DST: |
6a885fd0 BP |
1149 | case MFF_UDP_DST: |
1150 | value->be16 = flow->tp_dst; | |
1151 | break; | |
1152 | ||
268a95e0 BP |
1153 | case MFF_ICMPV4_TYPE: |
1154 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
1155 | value->u8 = ntohs(flow->tp_src); |
1156 | break; | |
1157 | ||
268a95e0 BP |
1158 | case MFF_ICMPV4_CODE: |
1159 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1160 | value->u8 = ntohs(flow->tp_dst); |
1161 | break; | |
1162 | ||
1163 | case MFF_ND_TARGET: | |
1164 | value->ipv6 = flow->nd_target; | |
1165 | break; | |
1166 | ||
1167 | case MFF_N_IDS: | |
1168 | default: | |
1169 | NOT_REACHED(); | |
1170 | } | |
1171 | } | |
1172 | ||
81a76618 BP |
1173 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
1174 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
6a885fd0 BP |
1175 | * prerequisites. */ |
1176 | void | |
1177 | mf_set_value(const struct mf_field *mf, | |
81a76618 | 1178 | const union mf_value *value, struct match *match) |
6a885fd0 BP |
1179 | { |
1180 | switch (mf->id) { | |
1181 | case MFF_TUN_ID: | |
81a76618 | 1182 | match_set_tun_id(match, value->be64); |
6a885fd0 | 1183 | break; |
4fe3445a PS |
1184 | case MFF_TUN_SRC: |
1185 | match_set_tun_src(match, value->be32); | |
1186 | break; | |
1187 | case MFF_TUN_DST: | |
1188 | match_set_tun_dst(match, value->be32); | |
1189 | break; | |
1190 | case MFF_TUN_FLAGS: | |
1191 | match_set_tun_flags(match, ntohs(value->be16)); | |
1192 | break; | |
1193 | case MFF_TUN_TOS: | |
1194 | match_set_tun_tos(match, value->u8); | |
1195 | break; | |
1196 | case MFF_TUN_TTL: | |
1197 | match_set_tun_ttl(match, value->u8); | |
1198 | break; | |
1199 | ||
969fc56c | 1200 | case MFF_METADATA: |
81a76618 | 1201 | match_set_metadata(match, value->be64); |
969fc56c | 1202 | break; |
6a885fd0 BP |
1203 | |
1204 | case MFF_IN_PORT: | |
4e022ec0 | 1205 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
1206 | break; |
1207 | ||
72333065 | 1208 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1209 | ofp_port_t port; |
bc146369 | 1210 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
1211 | match_set_in_port(match, port); |
1212 | break; | |
1213 | } | |
1214 | ||
1b567fb9 AA |
1215 | case MFF_SKB_PRIORITY: |
1216 | match_set_skb_priority(match, ntohl(value->be32)); | |
1217 | break; | |
1218 | ||
1219 | case MFF_SKB_MARK: | |
1220 | match_set_skb_mark(match, ntohl(value->be32)); | |
1221 | break; | |
1222 | ||
0d7e2fe4 | 1223 | CASE_MFF_REGS: |
81a76618 | 1224 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 1225 | break; |
6a885fd0 BP |
1226 | |
1227 | case MFF_ETH_SRC: | |
81a76618 | 1228 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
1229 | break; |
1230 | ||
1231 | case MFF_ETH_DST: | |
81a76618 | 1232 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
1233 | break; |
1234 | ||
1235 | case MFF_ETH_TYPE: | |
81a76618 | 1236 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
1237 | break; |
1238 | ||
1239 | case MFF_VLAN_TCI: | |
81a76618 | 1240 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
1241 | break; |
1242 | ||
441c57a9 | 1243 | case MFF_DL_VLAN: |
81a76618 | 1244 | match_set_dl_vlan(match, value->be16); |
6a885fd0 | 1245 | break; |
cc34bc8c | 1246 | case MFF_VLAN_VID: |
81a76618 | 1247 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 1248 | break; |
6a885fd0 | 1249 | |
441c57a9 | 1250 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1251 | case MFF_VLAN_PCP: |
81a76618 | 1252 | match_set_dl_vlan_pcp(match, value->u8); |
6a885fd0 BP |
1253 | break; |
1254 | ||
b02475c5 SH |
1255 | case MFF_MPLS_LABEL: |
1256 | match_set_mpls_label(match, value->be32); | |
1257 | break; | |
1258 | ||
1259 | case MFF_MPLS_TC: | |
1260 | match_set_mpls_tc(match, value->u8); | |
1261 | break; | |
1262 | ||
1263 | case MFF_MPLS_BOS: | |
1264 | match_set_mpls_bos(match, value->u8); | |
1265 | break; | |
1266 | ||
6a885fd0 | 1267 | case MFF_IPV4_SRC: |
81a76618 | 1268 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1269 | break; |
1270 | ||
1271 | case MFF_IPV4_DST: | |
81a76618 | 1272 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1273 | break; |
1274 | ||
1275 | case MFF_IPV6_SRC: | |
81a76618 | 1276 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
1277 | break; |
1278 | ||
1279 | case MFF_IPV6_DST: | |
81a76618 | 1280 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
1281 | break; |
1282 | ||
fa8223b7 | 1283 | case MFF_IPV6_LABEL: |
81a76618 | 1284 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
1285 | break; |
1286 | ||
6a885fd0 | 1287 | case MFF_IP_PROTO: |
81a76618 | 1288 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
1289 | break; |
1290 | ||
530180fd | 1291 | case MFF_IP_DSCP: |
81a76618 | 1292 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
1293 | break; |
1294 | ||
1638b906 BP |
1295 | case MFF_IP_DSCP_SHIFTED: |
1296 | match_set_nw_dscp(match, value->u8 << 2); | |
1297 | break; | |
1298 | ||
530180fd | 1299 | case MFF_IP_ECN: |
81a76618 | 1300 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
1301 | break; |
1302 | ||
a61680c6 | 1303 | case MFF_IP_TTL: |
81a76618 | 1304 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
1305 | break; |
1306 | ||
7257b535 | 1307 | case MFF_IP_FRAG: |
81a76618 | 1308 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
1309 | break; |
1310 | ||
6a885fd0 | 1311 | case MFF_ARP_OP: |
81a76618 | 1312 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
1313 | break; |
1314 | ||
1315 | case MFF_ARP_SPA: | |
81a76618 | 1316 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1317 | break; |
1318 | ||
1319 | case MFF_ARP_TPA: | |
81a76618 | 1320 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1321 | break; |
1322 | ||
1323 | case MFF_ARP_SHA: | |
1324 | case MFF_ND_SLL: | |
81a76618 | 1325 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
1326 | break; |
1327 | ||
1328 | case MFF_ARP_THA: | |
1329 | case MFF_ND_TLL: | |
81a76618 | 1330 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1331 | break; |
1332 | ||
1333 | case MFF_TCP_SRC: | |
6a885fd0 | 1334 | case MFF_UDP_SRC: |
81a76618 | 1335 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1336 | break; |
1337 | ||
71baec06 | 1338 | case MFF_TCP_DST: |
6a885fd0 | 1339 | case MFF_UDP_DST: |
81a76618 | 1340 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1341 | break; |
1342 | ||
268a95e0 BP |
1343 | case MFF_ICMPV4_TYPE: |
1344 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1345 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1346 | break; |
1347 | ||
268a95e0 BP |
1348 | case MFF_ICMPV4_CODE: |
1349 | case MFF_ICMPV6_CODE: | |
81a76618 | 1350 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1351 | break; |
1352 | ||
1353 | case MFF_ND_TARGET: | |
81a76618 | 1354 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1355 | break; |
1356 | ||
1357 | case MFF_N_IDS: | |
1358 | default: | |
1359 | NOT_REACHED(); | |
1360 | } | |
1361 | } | |
1362 | ||
910fb1d8 JP |
1363 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1364 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1365 | void |
1366 | mf_set_flow_value(const struct mf_field *mf, | |
1367 | const union mf_value *value, struct flow *flow) | |
1368 | { | |
1369 | switch (mf->id) { | |
1370 | case MFF_TUN_ID: | |
296e07ac | 1371 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1372 | break; |
4fe3445a PS |
1373 | case MFF_TUN_SRC: |
1374 | flow->tunnel.ip_src = value->be32; | |
1375 | break; | |
1376 | case MFF_TUN_DST: | |
1377 | flow->tunnel.ip_dst = value->be32; | |
1378 | break; | |
1379 | case MFF_TUN_FLAGS: | |
1380 | flow->tunnel.flags = ntohs(value->be16); | |
1381 | break; | |
1382 | case MFF_TUN_TOS: | |
1383 | flow->tunnel.ip_tos = value->u8; | |
1384 | break; | |
1385 | case MFF_TUN_TTL: | |
1386 | flow->tunnel.ip_ttl = value->u8; | |
1387 | break; | |
1388 | ||
969fc56c JS |
1389 | case MFF_METADATA: |
1390 | flow->metadata = value->be64; | |
1391 | break; | |
28da1f8f BP |
1392 | |
1393 | case MFF_IN_PORT: | |
4e022ec0 | 1394 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f BP |
1395 | break; |
1396 | ||
72333065 | 1397 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1398 | ofp_port_t port; |
bc146369 | 1399 | ofputil_port_from_ofp11(value->be32, &port); |
4e022ec0 | 1400 | flow->in_port.ofp_port = port; |
72333065 JR |
1401 | break; |
1402 | } | |
1403 | ||
1b567fb9 AA |
1404 | case MFF_SKB_PRIORITY: |
1405 | flow->skb_priority = ntohl(value->be32); | |
1406 | break; | |
1407 | ||
1408 | case MFF_SKB_MARK: | |
1409 | flow->skb_mark = ntohl(value->be32); | |
1410 | break; | |
1411 | ||
0d7e2fe4 | 1412 | CASE_MFF_REGS: |
28da1f8f BP |
1413 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1414 | break; | |
28da1f8f BP |
1415 | |
1416 | case MFF_ETH_SRC: | |
1417 | memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN); | |
1418 | break; | |
1419 | ||
1420 | case MFF_ETH_DST: | |
b5a36e38 | 1421 | memcpy(flow->dl_dst, value->mac, ETH_ADDR_LEN); |
28da1f8f BP |
1422 | break; |
1423 | ||
1424 | case MFF_ETH_TYPE: | |
1425 | flow->dl_type = value->be16; | |
1426 | break; | |
1427 | ||
1428 | case MFF_VLAN_TCI: | |
1429 | flow->vlan_tci = value->be16; | |
1430 | break; | |
1431 | ||
441c57a9 | 1432 | case MFF_DL_VLAN: |
fb0451d9 | 1433 | flow_set_dl_vlan(flow, value->be16); |
28da1f8f | 1434 | break; |
cc34bc8c BP |
1435 | case MFF_VLAN_VID: |
1436 | flow_set_vlan_vid(flow, value->be16); | |
1437 | break; | |
28da1f8f | 1438 | |
441c57a9 | 1439 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1440 | case MFF_VLAN_PCP: |
28da1f8f BP |
1441 | flow_set_vlan_pcp(flow, value->u8); |
1442 | break; | |
1443 | ||
b02475c5 SH |
1444 | case MFF_MPLS_LABEL: |
1445 | flow_set_mpls_label(flow, value->be32); | |
1446 | break; | |
1447 | ||
1448 | case MFF_MPLS_TC: | |
1449 | flow_set_mpls_tc(flow, value->u8); | |
1450 | break; | |
1451 | ||
1452 | case MFF_MPLS_BOS: | |
1453 | flow_set_mpls_bos(flow, value->u8); | |
1454 | break; | |
1455 | ||
28da1f8f BP |
1456 | case MFF_IPV4_SRC: |
1457 | flow->nw_src = value->be32; | |
1458 | break; | |
1459 | ||
1460 | case MFF_IPV4_DST: | |
1461 | flow->nw_dst = value->be32; | |
1462 | break; | |
1463 | ||
1464 | case MFF_IPV6_SRC: | |
1465 | flow->ipv6_src = value->ipv6; | |
1466 | break; | |
1467 | ||
1468 | case MFF_IPV6_DST: | |
1469 | flow->ipv6_dst = value->ipv6; | |
1470 | break; | |
1471 | ||
1472 | case MFF_IPV6_LABEL: | |
1473 | flow->ipv6_label = value->be32 & ~htonl(IPV6_LABEL_MASK); | |
1474 | break; | |
1475 | ||
1476 | case MFF_IP_PROTO: | |
1477 | flow->nw_proto = value->u8; | |
1478 | break; | |
1479 | ||
1480 | case MFF_IP_DSCP: | |
1481 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1482 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1483 | break; | |
1484 | ||
1638b906 BP |
1485 | case MFF_IP_DSCP_SHIFTED: |
1486 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1487 | flow->nw_tos |= value->u8 << 2; | |
1488 | break; | |
1489 | ||
28da1f8f BP |
1490 | case MFF_IP_ECN: |
1491 | flow->nw_tos &= ~IP_ECN_MASK; | |
1492 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1493 | break; | |
1494 | ||
1495 | case MFF_IP_TTL: | |
1496 | flow->nw_ttl = value->u8; | |
1497 | break; | |
1498 | ||
1499 | case MFF_IP_FRAG: | |
1500 | flow->nw_frag &= value->u8; | |
1501 | break; | |
1502 | ||
1503 | case MFF_ARP_OP: | |
1504 | flow->nw_proto = ntohs(value->be16); | |
1505 | break; | |
1506 | ||
1507 | case MFF_ARP_SPA: | |
1508 | flow->nw_src = value->be32; | |
1509 | break; | |
1510 | ||
1511 | case MFF_ARP_TPA: | |
1512 | flow->nw_dst = value->be32; | |
1513 | break; | |
1514 | ||
1515 | case MFF_ARP_SHA: | |
1516 | case MFF_ND_SLL: | |
1517 | memcpy(flow->arp_sha, value->mac, ETH_ADDR_LEN); | |
1518 | break; | |
1519 | ||
1520 | case MFF_ARP_THA: | |
1521 | case MFF_ND_TLL: | |
1522 | memcpy(flow->arp_tha, value->mac, ETH_ADDR_LEN); | |
1523 | break; | |
1524 | ||
1525 | case MFF_TCP_SRC: | |
1526 | case MFF_UDP_SRC: | |
1527 | flow->tp_src = value->be16; | |
1528 | break; | |
1529 | ||
1530 | case MFF_TCP_DST: | |
1531 | case MFF_UDP_DST: | |
1532 | flow->tp_dst = value->be16; | |
1533 | break; | |
1534 | ||
1535 | case MFF_ICMPV4_TYPE: | |
1536 | case MFF_ICMPV6_TYPE: | |
1537 | flow->tp_src = htons(value->u8); | |
1538 | break; | |
1539 | ||
1540 | case MFF_ICMPV4_CODE: | |
1541 | case MFF_ICMPV6_CODE: | |
1542 | flow->tp_dst = htons(value->u8); | |
1543 | break; | |
1544 | ||
1545 | case MFF_ND_TARGET: | |
1546 | flow->nd_target = value->ipv6; | |
1547 | break; | |
1548 | ||
1549 | case MFF_N_IDS: | |
1550 | default: | |
1551 | NOT_REACHED(); | |
1552 | } | |
1553 | } | |
1554 | ||
ccbe50f8 BP |
1555 | /* Returns true if 'mf' has a zero value in 'flow', false if it is nonzero. |
1556 | * | |
1557 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1558 | * prerequisites. */ | |
1559 | bool | |
1560 | mf_is_zero(const struct mf_field *mf, const struct flow *flow) | |
1561 | { | |
1562 | union mf_value value; | |
1563 | ||
1564 | mf_get_value(mf, flow, &value); | |
1565 | return is_all_zeros((const uint8_t *) &value, mf->n_bytes); | |
1566 | } | |
1567 | ||
81a76618 | 1568 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1569 | * |
81a76618 | 1570 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
6a885fd0 BP |
1571 | * prerequisites. */ |
1572 | void | |
81a76618 | 1573 | mf_set_wild(const struct mf_field *mf, struct match *match) |
6a885fd0 BP |
1574 | { |
1575 | switch (mf->id) { | |
1576 | case MFF_TUN_ID: | |
81a76618 | 1577 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1578 | break; |
4fe3445a PS |
1579 | case MFF_TUN_SRC: |
1580 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1581 | break; | |
1582 | case MFF_TUN_DST: | |
1583 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1584 | break; | |
1585 | case MFF_TUN_FLAGS: | |
1586 | match_set_tun_flags_masked(match, 0, 0); | |
1587 | break; | |
1588 | case MFF_TUN_TOS: | |
1589 | match_set_tun_tos_masked(match, 0, 0); | |
1590 | break; | |
1591 | case MFF_TUN_TTL: | |
1592 | match_set_tun_ttl_masked(match, 0, 0); | |
1593 | break; | |
1594 | ||
969fc56c | 1595 | case MFF_METADATA: |
81a76618 | 1596 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 1597 | break; |
6a885fd0 BP |
1598 | |
1599 | case MFF_IN_PORT: | |
72333065 | 1600 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
1601 | match->flow.in_port.ofp_port = 0; |
1602 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 BP |
1603 | break; |
1604 | ||
1b567fb9 AA |
1605 | case MFF_SKB_PRIORITY: |
1606 | match->flow.skb_priority = 0; | |
1607 | match->wc.masks.skb_priority = 0; | |
1608 | break; | |
1609 | ||
1610 | case MFF_SKB_MARK: | |
1611 | match->flow.skb_mark = 0; | |
1612 | match->wc.masks.skb_mark = 0; | |
1613 | break; | |
1614 | ||
0d7e2fe4 | 1615 | CASE_MFF_REGS: |
81a76618 | 1616 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 1617 | break; |
6a885fd0 BP |
1618 | |
1619 | case MFF_ETH_SRC: | |
81a76618 BP |
1620 | memset(match->flow.dl_src, 0, ETH_ADDR_LEN); |
1621 | memset(match->wc.masks.dl_src, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1622 | break; |
1623 | ||
1624 | case MFF_ETH_DST: | |
81a76618 BP |
1625 | memset(match->flow.dl_dst, 0, ETH_ADDR_LEN); |
1626 | memset(match->wc.masks.dl_dst, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1627 | break; |
1628 | ||
1629 | case MFF_ETH_TYPE: | |
81a76618 BP |
1630 | match->flow.dl_type = htons(0); |
1631 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
1632 | break; |
1633 | ||
1634 | case MFF_VLAN_TCI: | |
81a76618 | 1635 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
1636 | break; |
1637 | ||
441c57a9 | 1638 | case MFF_DL_VLAN: |
cc34bc8c | 1639 | case MFF_VLAN_VID: |
81a76618 | 1640 | match_set_any_vid(match); |
6a885fd0 BP |
1641 | break; |
1642 | ||
441c57a9 | 1643 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1644 | case MFF_VLAN_PCP: |
81a76618 | 1645 | match_set_any_pcp(match); |
6a885fd0 BP |
1646 | break; |
1647 | ||
b02475c5 SH |
1648 | case MFF_MPLS_LABEL: |
1649 | match_set_any_mpls_label(match); | |
1650 | break; | |
1651 | ||
1652 | case MFF_MPLS_TC: | |
1653 | match_set_any_mpls_tc(match); | |
1654 | break; | |
1655 | ||
1656 | case MFF_MPLS_BOS: | |
1657 | match_set_any_mpls_bos(match); | |
1658 | break; | |
1659 | ||
6a885fd0 BP |
1660 | case MFF_IPV4_SRC: |
1661 | case MFF_ARP_SPA: | |
81a76618 | 1662 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1663 | break; |
1664 | ||
1665 | case MFF_IPV4_DST: | |
1666 | case MFF_ARP_TPA: | |
81a76618 | 1667 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1668 | break; |
1669 | ||
1670 | case MFF_IPV6_SRC: | |
81a76618 BP |
1671 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
1672 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
1673 | break; |
1674 | ||
1675 | case MFF_IPV6_DST: | |
81a76618 BP |
1676 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
1677 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
1678 | break; |
1679 | ||
fa8223b7 | 1680 | case MFF_IPV6_LABEL: |
81a76618 BP |
1681 | match->wc.masks.ipv6_label = htonl(0); |
1682 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
1683 | break; |
1684 | ||
6a885fd0 | 1685 | case MFF_IP_PROTO: |
81a76618 BP |
1686 | match->wc.masks.nw_proto = 0; |
1687 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1688 | break; |
1689 | ||
530180fd | 1690 | case MFF_IP_DSCP: |
1638b906 | 1691 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
1692 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
1693 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
1694 | break; |
1695 | ||
530180fd | 1696 | case MFF_IP_ECN: |
81a76618 BP |
1697 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
1698 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
1699 | break; |
1700 | ||
a61680c6 | 1701 | case MFF_IP_TTL: |
81a76618 BP |
1702 | match->wc.masks.nw_ttl = 0; |
1703 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
1704 | break; |
1705 | ||
7257b535 | 1706 | case MFF_IP_FRAG: |
81a76618 BP |
1707 | match->wc.masks.nw_frag |= FLOW_NW_FRAG_MASK; |
1708 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; | |
6a885fd0 BP |
1709 | break; |
1710 | ||
1711 | case MFF_ARP_OP: | |
81a76618 BP |
1712 | match->wc.masks.nw_proto = 0; |
1713 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1714 | break; |
1715 | ||
1716 | case MFF_ARP_SHA: | |
1717 | case MFF_ND_SLL: | |
81a76618 BP |
1718 | memset(match->flow.arp_sha, 0, ETH_ADDR_LEN); |
1719 | memset(match->wc.masks.arp_sha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1720 | break; |
1721 | ||
1722 | case MFF_ARP_THA: | |
1723 | case MFF_ND_TLL: | |
81a76618 BP |
1724 | memset(match->flow.arp_tha, 0, ETH_ADDR_LEN); |
1725 | memset(match->wc.masks.arp_tha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1726 | break; |
1727 | ||
1728 | case MFF_TCP_SRC: | |
1729 | case MFF_UDP_SRC: | |
268a95e0 BP |
1730 | case MFF_ICMPV4_TYPE: |
1731 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
1732 | match->wc.masks.tp_src = htons(0); |
1733 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
1734 | break; |
1735 | ||
1736 | case MFF_TCP_DST: | |
1737 | case MFF_UDP_DST: | |
268a95e0 BP |
1738 | case MFF_ICMPV4_CODE: |
1739 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
1740 | match->wc.masks.tp_dst = htons(0); |
1741 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
1742 | break; |
1743 | ||
1744 | case MFF_ND_TARGET: | |
81a76618 BP |
1745 | memset(&match->wc.masks.nd_target, 0, |
1746 | sizeof match->wc.masks.nd_target); | |
1747 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
1748 | break; |
1749 | ||
1750 | case MFF_N_IDS: | |
1751 | default: | |
1752 | NOT_REACHED(); | |
1753 | } | |
1754 | } | |
1755 | ||
81a76618 | 1756 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
1757 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
1758 | * with a 1-bit indicating that the corresponding value bit must match and a | |
1759 | * 0-bit indicating a don't-care. | |
1760 | * | |
1761 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
1762 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
1763 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
1764 | * |
1765 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
81a76618 | 1766 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. */ |
6a885fd0 BP |
1767 | void |
1768 | mf_set(const struct mf_field *mf, | |
1769 | const union mf_value *value, const union mf_value *mask, | |
81a76618 | 1770 | struct match *match) |
6a885fd0 BP |
1771 | { |
1772 | if (!mask || is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
81a76618 | 1773 | mf_set_value(mf, value, match); |
6a885fd0 BP |
1774 | return; |
1775 | } else if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { | |
81a76618 | 1776 | mf_set_wild(mf, match); |
6a885fd0 BP |
1777 | return; |
1778 | } | |
1779 | ||
1780 | switch (mf->id) { | |
1781 | case MFF_IN_PORT: | |
72333065 | 1782 | case MFF_IN_PORT_OXM: |
1b567fb9 AA |
1783 | case MFF_SKB_MARK: |
1784 | case MFF_SKB_PRIORITY: | |
6a885fd0 | 1785 | case MFF_ETH_TYPE: |
441c57a9 BP |
1786 | case MFF_DL_VLAN: |
1787 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 1788 | case MFF_VLAN_PCP: |
b02475c5 SH |
1789 | case MFF_MPLS_LABEL: |
1790 | case MFF_MPLS_TC: | |
1791 | case MFF_MPLS_BOS: | |
6a885fd0 | 1792 | case MFF_IP_PROTO: |
a61680c6 | 1793 | case MFF_IP_TTL: |
530180fd | 1794 | case MFF_IP_DSCP: |
1638b906 | 1795 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 1796 | case MFF_IP_ECN: |
6a885fd0 | 1797 | case MFF_ARP_OP: |
268a95e0 BP |
1798 | case MFF_ICMPV4_TYPE: |
1799 | case MFF_ICMPV4_CODE: | |
1800 | case MFF_ICMPV6_TYPE: | |
1801 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1802 | NOT_REACHED(); |
1803 | ||
1804 | case MFF_TUN_ID: | |
81a76618 | 1805 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 1806 | break; |
4fe3445a PS |
1807 | case MFF_TUN_SRC: |
1808 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
1809 | break; | |
1810 | case MFF_TUN_DST: | |
1811 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
1812 | break; | |
1813 | case MFF_TUN_FLAGS: | |
1814 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
1815 | break; | |
1816 | case MFF_TUN_TTL: | |
1817 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
1818 | break; | |
1819 | case MFF_TUN_TOS: | |
1820 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
1821 | break; | |
1822 | ||
969fc56c | 1823 | case MFF_METADATA: |
81a76618 | 1824 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 1825 | break; |
6a885fd0 | 1826 | |
0d7e2fe4 | 1827 | CASE_MFF_REGS: |
81a76618 BP |
1828 | match_set_reg_masked(match, mf->id - MFF_REG0, |
1829 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 BP |
1830 | break; |
1831 | ||
1832 | case MFF_ETH_DST: | |
81a76618 | 1833 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
1834 | break; |
1835 | ||
1836 | case MFF_ETH_SRC: | |
81a76618 | 1837 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
1838 | break; |
1839 | ||
e878338b SH |
1840 | case MFF_ARP_SHA: |
1841 | case MFF_ND_SLL: | |
81a76618 | 1842 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
1843 | break; |
1844 | ||
1845 | case MFF_ARP_THA: | |
1846 | case MFF_ND_TLL: | |
81a76618 | 1847 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
1848 | break; |
1849 | ||
6a885fd0 | 1850 | case MFF_VLAN_TCI: |
81a76618 | 1851 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
1852 | break; |
1853 | ||
cc34bc8c | 1854 | case MFF_VLAN_VID: |
81a76618 | 1855 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
1856 | break; |
1857 | ||
6a885fd0 | 1858 | case MFF_IPV4_SRC: |
81a76618 | 1859 | match_set_nw_src_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1860 | break; |
1861 | ||
1862 | case MFF_IPV4_DST: | |
81a76618 | 1863 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1864 | break; |
1865 | ||
1866 | case MFF_IPV6_SRC: | |
81a76618 | 1867 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1868 | break; |
1869 | ||
1870 | case MFF_IPV6_DST: | |
81a76618 | 1871 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1872 | break; |
1873 | ||
32455024 SH |
1874 | case MFF_IPV6_LABEL: |
1875 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
81a76618 | 1876 | mf_set_value(mf, value, match); |
32455024 | 1877 | } else { |
81a76618 | 1878 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
1879 | } |
1880 | break; | |
1881 | ||
47284b1f | 1882 | case MFF_ND_TARGET: |
81a76618 | 1883 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
1884 | break; |
1885 | ||
7257b535 | 1886 | case MFF_IP_FRAG: |
81a76618 | 1887 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
1888 | break; |
1889 | ||
6a885fd0 | 1890 | case MFF_ARP_SPA: |
81a76618 | 1891 | match_set_nw_src_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1892 | break; |
1893 | ||
1894 | case MFF_ARP_TPA: | |
81a76618 | 1895 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
6a885fd0 BP |
1896 | break; |
1897 | ||
73f33563 BP |
1898 | case MFF_TCP_SRC: |
1899 | case MFF_UDP_SRC: | |
81a76618 | 1900 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
1901 | break; |
1902 | ||
1903 | case MFF_TCP_DST: | |
1904 | case MFF_UDP_DST: | |
81a76618 | 1905 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
1906 | break; |
1907 | ||
6a885fd0 BP |
1908 | case MFF_N_IDS: |
1909 | default: | |
1910 | NOT_REACHED(); | |
1911 | } | |
1912 | } | |
1913 | ||
816fd533 BP |
1914 | static enum ofperr |
1915 | mf_check__(const struct mf_subfield *sf, const struct flow *flow, | |
1916 | const char *type) | |
6a885fd0 | 1917 | { |
816fd533 BP |
1918 | if (!sf->field) { |
1919 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
1920 | } else if (!sf->n_bits) { | |
1921 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
1922 | } else if (sf->ofs >= sf->field->n_bits) { | |
1923 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
1924 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
1925 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { | |
1926 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
1927 | "of %s field %s", sf->ofs, sf->n_bits, | |
1928 | sf->field->n_bits, type, sf->field->name); | |
1929 | } else if (flow && !mf_are_prereqs_ok(sf->field, flow)) { | |
1930 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", | |
1931 | type, sf->field->name); | |
6a885fd0 | 1932 | } else { |
816fd533 BP |
1933 | return 0; |
1934 | } | |
6a885fd0 | 1935 | |
816fd533 BP |
1936 | return OFPERR_OFPBAC_BAD_ARGUMENT; |
1937 | } | |
6a885fd0 | 1938 | |
816fd533 BP |
1939 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
1940 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
1941 | * ofp_mkerr()). */ | |
1942 | enum ofperr | |
1943 | mf_check_src(const struct mf_subfield *sf, const struct flow *flow) | |
1944 | { | |
1945 | return mf_check__(sf, flow, "source"); | |
1946 | } | |
6a885fd0 | 1947 | |
816fd533 BP |
1948 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
1949 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
1950 | * ofp_mkerr()). */ | |
1951 | enum ofperr | |
1952 | mf_check_dst(const struct mf_subfield *sf, const struct flow *flow) | |
1953 | { | |
1954 | int error = mf_check__(sf, flow, "destination"); | |
1955 | if (!error && !sf->field->writable) { | |
1956 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
1957 | sf->field->name); | |
1958 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
6a885fd0 | 1959 | } |
816fd533 | 1960 | return error; |
6a885fd0 BP |
1961 | } |
1962 | ||
81a76618 | 1963 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
1964 | * 'value' and 'mask', respectively. */ |
1965 | void | |
81a76618 | 1966 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
1967 | union mf_value *value, union mf_value *mask) |
1968 | { | |
81a76618 BP |
1969 | mf_get_value(mf, &match->flow, value); |
1970 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
1971 | } |
1972 | ||
1973 | /* Assigns a random value for field 'mf' to 'value'. */ | |
1974 | void | |
1975 | mf_random_value(const struct mf_field *mf, union mf_value *value) | |
1976 | { | |
1977 | random_bytes(value, mf->n_bytes); | |
1978 | ||
1979 | switch (mf->id) { | |
1980 | case MFF_TUN_ID: | |
4fe3445a PS |
1981 | case MFF_TUN_SRC: |
1982 | case MFF_TUN_DST: | |
1983 | case MFF_TUN_TOS: | |
1984 | case MFF_TUN_TTL: | |
1985 | case MFF_TUN_FLAGS: | |
969fc56c | 1986 | case MFF_METADATA: |
6a885fd0 | 1987 | case MFF_IN_PORT: |
1b567fb9 AA |
1988 | case MFF_SKB_MARK: |
1989 | case MFF_SKB_PRIORITY: | |
0d7e2fe4 | 1990 | CASE_MFF_REGS: |
6a885fd0 BP |
1991 | case MFF_ETH_SRC: |
1992 | case MFF_ETH_DST: | |
1993 | case MFF_ETH_TYPE: | |
1994 | case MFF_VLAN_TCI: | |
1995 | case MFF_IPV4_SRC: | |
1996 | case MFF_IPV4_DST: | |
1997 | case MFF_IPV6_SRC: | |
1998 | case MFF_IPV6_DST: | |
1999 | case MFF_IP_PROTO: | |
a61680c6 | 2000 | case MFF_IP_TTL: |
6a885fd0 BP |
2001 | case MFF_ARP_SPA: |
2002 | case MFF_ARP_TPA: | |
2003 | case MFF_ARP_SHA: | |
2004 | case MFF_ARP_THA: | |
2005 | case MFF_TCP_SRC: | |
2006 | case MFF_TCP_DST: | |
2007 | case MFF_UDP_SRC: | |
2008 | case MFF_UDP_DST: | |
268a95e0 BP |
2009 | case MFF_ICMPV4_TYPE: |
2010 | case MFF_ICMPV4_CODE: | |
2011 | case MFF_ICMPV6_TYPE: | |
2012 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
2013 | case MFF_ND_TARGET: |
2014 | case MFF_ND_SLL: | |
2015 | case MFF_ND_TLL: | |
2016 | break; | |
2017 | ||
72333065 | 2018 | case MFF_IN_PORT_OXM: |
4e022ec0 | 2019 | value->be32 = ofputil_port_to_ofp11(u16_to_ofp(ntohs(value->be16))); |
72333065 JR |
2020 | break; |
2021 | ||
fa8223b7 JP |
2022 | case MFF_IPV6_LABEL: |
2023 | value->be32 &= ~htonl(IPV6_LABEL_MASK); | |
2024 | break; | |
2025 | ||
530180fd JP |
2026 | case MFF_IP_DSCP: |
2027 | value->u8 &= IP_DSCP_MASK; | |
2028 | break; | |
2029 | ||
1638b906 BP |
2030 | case MFF_IP_DSCP_SHIFTED: |
2031 | value->u8 &= IP_DSCP_MASK >> 2; | |
2032 | break; | |
2033 | ||
530180fd JP |
2034 | case MFF_IP_ECN: |
2035 | value->u8 &= IP_ECN_MASK; | |
6a885fd0 BP |
2036 | break; |
2037 | ||
7257b535 | 2038 | case MFF_IP_FRAG: |
eadef313 | 2039 | value->u8 &= FLOW_NW_FRAG_MASK; |
7257b535 BP |
2040 | break; |
2041 | ||
6a885fd0 BP |
2042 | case MFF_ARP_OP: |
2043 | value->be16 &= htons(0xff); | |
2044 | break; | |
2045 | ||
441c57a9 | 2046 | case MFF_DL_VLAN: |
6a885fd0 BP |
2047 | value->be16 &= htons(VLAN_VID_MASK); |
2048 | break; | |
cc34bc8c BP |
2049 | case MFF_VLAN_VID: |
2050 | value->be16 &= htons(VLAN_VID_MASK | VLAN_CFI); | |
2051 | break; | |
6a885fd0 | 2052 | |
441c57a9 | 2053 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 2054 | case MFF_VLAN_PCP: |
6a885fd0 BP |
2055 | value->u8 &= 0x07; |
2056 | break; | |
2057 | ||
b02475c5 SH |
2058 | case MFF_MPLS_LABEL: |
2059 | value->be32 &= htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT); | |
2060 | break; | |
2061 | ||
2062 | case MFF_MPLS_TC: | |
2063 | value->u8 &= MPLS_TC_MASK >> MPLS_TC_SHIFT; | |
2064 | break; | |
2065 | ||
2066 | case MFF_MPLS_BOS: | |
2067 | value->u8 &= MPLS_BOS_MASK >> MPLS_BOS_SHIFT; | |
2068 | break; | |
2069 | ||
6a885fd0 BP |
2070 | case MFF_N_IDS: |
2071 | default: | |
2072 | NOT_REACHED(); | |
2073 | } | |
2074 | } | |
2075 | ||
2076 | static char * | |
2077 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2078 | uint8_t *valuep, uint8_t *maskp) | |
2079 | { | |
2080 | unsigned long long int integer, mask; | |
2081 | char *tail; | |
2082 | int i; | |
2083 | ||
2084 | errno = 0; | |
2085 | integer = strtoull(s, &tail, 0); | |
2086 | if (errno || (*tail != '\0' && *tail != '/')) { | |
2087 | goto syntax_error; | |
2088 | } | |
2089 | ||
2090 | if (*tail == '/') { | |
2091 | mask = strtoull(tail + 1, &tail, 0); | |
2092 | if (errno || *tail != '\0') { | |
2093 | goto syntax_error; | |
2094 | } | |
2095 | } else { | |
2096 | mask = ULLONG_MAX; | |
2097 | } | |
2098 | ||
2099 | for (i = mf->n_bytes - 1; i >= 0; i--) { | |
2100 | valuep[i] = integer; | |
2101 | maskp[i] = mask; | |
2102 | integer >>= 8; | |
2103 | mask >>= 8; | |
2104 | } | |
2105 | if (integer) { | |
2106 | return xasprintf("%s: value too large for %u-byte field %s", | |
2107 | s, mf->n_bytes, mf->name); | |
2108 | } | |
2109 | return NULL; | |
2110 | ||
2111 | syntax_error: | |
2112 | return xasprintf("%s: bad syntax for %s", s, mf->name); | |
2113 | } | |
2114 | ||
2115 | static char * | |
2116 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
2117 | uint8_t mac[ETH_ADDR_LEN], | |
2118 | uint8_t mask[ETH_ADDR_LEN]) | |
2119 | { | |
279fb135 | 2120 | int n; |
6a885fd0 | 2121 | |
279fb135 | 2122 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 | 2123 | |
279fb135 BP |
2124 | n = -1; |
2125 | if (sscanf(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(mac), &n) > 0 | |
2126 | && n == strlen(s)) { | |
6a885fd0 BP |
2127 | memset(mask, 0xff, ETH_ADDR_LEN); |
2128 | return NULL; | |
279fb135 | 2129 | } |
6a885fd0 | 2130 | |
279fb135 BP |
2131 | n = -1; |
2132 | if (sscanf(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"%n", | |
2133 | ETH_ADDR_SCAN_ARGS(mac), ETH_ADDR_SCAN_ARGS(mask), &n) > 0 | |
2134 | && n == strlen(s)) { | |
2135 | return NULL; | |
6a885fd0 | 2136 | } |
279fb135 BP |
2137 | |
2138 | return xasprintf("%s: invalid Ethernet address", s); | |
6a885fd0 BP |
2139 | } |
2140 | ||
2141 | static char * | |
2142 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2143 | ovs_be32 *ip, ovs_be32 *mask) | |
2144 | { | |
2145 | int prefix; | |
2146 | ||
cb22974d | 2147 | ovs_assert(mf->n_bytes == sizeof *ip); |
6a885fd0 BP |
2148 | |
2149 | if (sscanf(s, IP_SCAN_FMT"/"IP_SCAN_FMT, | |
2150 | IP_SCAN_ARGS(ip), IP_SCAN_ARGS(mask)) == IP_SCAN_COUNT * 2) { | |
2151 | /* OK. */ | |
2152 | } else if (sscanf(s, IP_SCAN_FMT"/%d", | |
2153 | IP_SCAN_ARGS(ip), &prefix) == IP_SCAN_COUNT + 1) { | |
2154 | if (prefix <= 0 || prefix > 32) { | |
2155 | return xasprintf("%s: network prefix bits not between 1 and " | |
2156 | "32", s); | |
2157 | } else if (prefix == 32) { | |
2158 | *mask = htonl(UINT32_MAX); | |
2159 | } else { | |
2160 | *mask = htonl(((1u << prefix) - 1) << (32 - prefix)); | |
2161 | } | |
2162 | } else if (sscanf(s, IP_SCAN_FMT, IP_SCAN_ARGS(ip)) == IP_SCAN_COUNT) { | |
2163 | *mask = htonl(UINT32_MAX); | |
2164 | } else { | |
2165 | return xasprintf("%s: invalid IP address", s); | |
2166 | } | |
2167 | return NULL; | |
2168 | } | |
2169 | ||
2170 | static char * | |
2171 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
2172 | struct in6_addr *value, struct in6_addr *mask) | |
2173 | { | |
2174 | char *str = xstrdup(s); | |
2175 | char *save_ptr = NULL; | |
2176 | const char *name, *netmask; | |
2177 | int retval; | |
2178 | ||
cb22974d | 2179 | ovs_assert(mf->n_bytes == sizeof *value); |
6a885fd0 BP |
2180 | |
2181 | name = strtok_r(str, "/", &save_ptr); | |
2182 | retval = name ? lookup_ipv6(name, value) : EINVAL; | |
2183 | if (retval) { | |
2184 | char *err; | |
2185 | ||
2186 | err = xasprintf("%s: could not convert to IPv6 address", str); | |
2187 | free(str); | |
2188 | ||
2189 | return err; | |
2190 | } | |
2191 | ||
2192 | netmask = strtok_r(NULL, "/", &save_ptr); | |
2193 | if (netmask) { | |
ff0b06ee BP |
2194 | if (inet_pton(AF_INET6, netmask, mask) != 1) { |
2195 | int prefix = atoi(netmask); | |
2196 | if (prefix <= 0 || prefix > 128) { | |
2197 | free(str); | |
2198 | return xasprintf("%s: prefix bits not between 1 and 128", s); | |
2199 | } else { | |
2200 | *mask = ipv6_create_mask(prefix); | |
2201 | } | |
6a885fd0 BP |
2202 | } |
2203 | } else { | |
2204 | *mask = in6addr_exact; | |
2205 | } | |
2206 | free(str); | |
2207 | ||
2208 | return NULL; | |
2209 | } | |
2210 | ||
2211 | static char * | |
2212 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
2213 | ovs_be16 *valuep, ovs_be16 *maskp) | |
2214 | { | |
4e022ec0 | 2215 | ofp_port_t port; |
6a885fd0 | 2216 | |
cb22974d | 2217 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 JR |
2218 | |
2219 | if (ofputil_port_from_string(s, &port)) { | |
4e022ec0 | 2220 | *valuep = htons(ofp_to_u16(port)); |
6a885fd0 BP |
2221 | *maskp = htons(UINT16_MAX); |
2222 | return NULL; | |
6a885fd0 | 2223 | } |
33ab38d9 | 2224 | return xasprintf("%s: port value out of range for %s", s, mf->name); |
6a885fd0 BP |
2225 | } |
2226 | ||
72333065 JR |
2227 | static char * |
2228 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
2229 | ovs_be32 *valuep, ovs_be32 *maskp) | |
2230 | { | |
4e022ec0 | 2231 | ofp_port_t port; |
72333065 JR |
2232 | |
2233 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2234 | if (ofputil_port_from_string(s, &port)) { | |
2235 | *valuep = ofputil_port_to_ofp11(port); | |
2236 | *maskp = htonl(UINT32_MAX); | |
2237 | return NULL; | |
2238 | } | |
2239 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2240 | } | |
2241 | ||
7257b535 BP |
2242 | struct frag_handling { |
2243 | const char *name; | |
2244 | uint8_t mask; | |
2245 | uint8_t value; | |
2246 | }; | |
2247 | ||
2248 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2249 | #define A FLOW_NW_FRAG_ANY |
2250 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2251 | /* name mask value */ |
2252 | ||
2253 | { "no", A|L, 0 }, | |
2254 | { "first", A|L, A }, | |
2255 | { "later", A|L, A|L }, | |
2256 | ||
2257 | { "no", A, 0 }, | |
2258 | { "yes", A, A }, | |
2259 | ||
2260 | { "not_later", L, 0 }, | |
2261 | { "later", L, L }, | |
2262 | #undef A | |
2263 | #undef L | |
2264 | }; | |
2265 | ||
2266 | static char * | |
2267 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2268 | { | |
2269 | const struct frag_handling *h; | |
2270 | ||
2271 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2272 | if (!strcasecmp(s, h->name)) { | |
2273 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2274 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2275 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2276 | *valuep = h->value; |
2277 | return NULL; | |
2278 | } | |
2279 | } | |
2280 | ||
2281 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
2282 | "\"yes\", \"first\", \"later\", \"not_first\"", s); | |
2283 | } | |
2284 | ||
4fe3445a PS |
2285 | static int |
2286 | parse_flow_tun_flags(const char *s_, const char *(*bit_to_string)(uint32_t), | |
2287 | ovs_be16 *res) | |
2288 | { | |
2289 | uint32_t result = 0; | |
2290 | char *save_ptr = NULL; | |
2291 | char *name; | |
2292 | int rc = 0; | |
2293 | char *s = xstrdup(s_); | |
2294 | ||
2295 | for (name = strtok_r((char *)s, " |", &save_ptr); name; | |
2296 | name = strtok_r(NULL, " |", &save_ptr)) { | |
2297 | int name_len; | |
2298 | unsigned long long int flags; | |
2299 | uint32_t bit; | |
2300 | int n0; | |
2301 | ||
2302 | if (sscanf(name, "%lli%n", &flags, &n0) > 0 && n0 > 0) { | |
2303 | result |= flags; | |
2304 | continue; | |
2305 | } | |
2306 | name_len = strlen(name); | |
2307 | for (bit = 1; bit; bit <<= 1) { | |
2308 | const char *fname = bit_to_string(bit); | |
2309 | size_t len; | |
2310 | ||
2311 | if (!fname) { | |
2312 | continue; | |
2313 | } | |
2314 | ||
2315 | len = strlen(fname); | |
2316 | if (len != name_len) { | |
2317 | continue; | |
2318 | } | |
2319 | if (!strncmp(name, fname, len)) { | |
2320 | result |= bit; | |
2321 | break; | |
2322 | } | |
2323 | } | |
2324 | ||
2325 | if (!bit) { | |
2326 | rc = -ENOENT; | |
2327 | goto out; | |
2328 | } | |
2329 | } | |
2330 | ||
2331 | *res = htons(result); | |
2332 | out: | |
2333 | free(s); | |
2334 | return rc; | |
2335 | } | |
2336 | ||
2337 | static char * | |
b0aa8146 | 2338 | mf_from_tun_flags_string(const char *s, ovs_be16 *valuep, ovs_be16 *maskp) |
4fe3445a PS |
2339 | { |
2340 | if (!parse_flow_tun_flags(s, flow_tun_flag_to_string, valuep)) { | |
b0aa8146 | 2341 | *maskp = htons(UINT16_MAX); |
4fe3445a PS |
2342 | return NULL; |
2343 | } | |
2344 | ||
2345 | return xasprintf("%s: unknown tunnel flags (valid flags are \"df\", " | |
2346 | "\"csum\", \"key\"", s); | |
2347 | } | |
2348 | ||
6a885fd0 BP |
2349 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2350 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2351 | char * | |
2352 | mf_parse(const struct mf_field *mf, const char *s, | |
2353 | union mf_value *value, union mf_value *mask) | |
2354 | { | |
bedde04c | 2355 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2356 | memset(value, 0, mf->n_bytes); |
2357 | memset(mask, 0, mf->n_bytes); | |
2358 | return NULL; | |
2359 | } | |
2360 | ||
2361 | switch (mf->string) { | |
2362 | case MFS_DECIMAL: | |
2363 | case MFS_HEXADECIMAL: | |
2364 | return mf_from_integer_string(mf, s, | |
2365 | (uint8_t *) value, (uint8_t *) mask); | |
2366 | ||
2367 | case MFS_ETHERNET: | |
2368 | return mf_from_ethernet_string(mf, s, value->mac, mask->mac); | |
2369 | ||
2370 | case MFS_IPV4: | |
2371 | return mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); | |
2372 | ||
2373 | case MFS_IPV6: | |
2374 | return mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); | |
2375 | ||
2376 | case MFS_OFP_PORT: | |
2377 | return mf_from_ofp_port_string(mf, s, &value->be16, &mask->be16); | |
7257b535 | 2378 | |
72333065 JR |
2379 | case MFS_OFP_PORT_OXM: |
2380 | return mf_from_ofp_port_string32(mf, s, &value->be32, &mask->be32); | |
2381 | ||
7257b535 BP |
2382 | case MFS_FRAG: |
2383 | return mf_from_frag_string(s, &value->u8, &mask->u8); | |
4fe3445a PS |
2384 | |
2385 | case MFS_TNL_FLAGS: | |
cb22974d | 2386 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
b0aa8146 | 2387 | return mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
6a885fd0 BP |
2388 | } |
2389 | NOT_REACHED(); | |
2390 | } | |
2391 | ||
2392 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
2393 | * successful, otherwise a malloc()'d string describing the error. */ | |
2394 | char * | |
2395 | mf_parse_value(const struct mf_field *mf, const char *s, union mf_value *value) | |
2396 | { | |
2397 | union mf_value mask; | |
2398 | char *error; | |
2399 | ||
2400 | error = mf_parse(mf, s, value, &mask); | |
2401 | if (error) { | |
2402 | return error; | |
2403 | } | |
2404 | ||
2405 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
2406 | return xasprintf("%s: wildcards not allowed here", s); | |
2407 | } | |
2408 | return NULL; | |
2409 | } | |
2410 | ||
2411 | static void | |
2412 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
2413 | const uint8_t *maskp, struct ds *s) | |
2414 | { | |
2415 | unsigned long long int integer; | |
2416 | int i; | |
2417 | ||
cb22974d | 2418 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 BP |
2419 | |
2420 | integer = 0; | |
2421 | for (i = 0; i < mf->n_bytes; i++) { | |
2422 | integer = (integer << 8) | valuep[i]; | |
2423 | } | |
2424 | if (mf->string == MFS_HEXADECIMAL) { | |
2425 | ds_put_format(s, "%#llx", integer); | |
2426 | } else { | |
2427 | ds_put_format(s, "%lld", integer); | |
2428 | } | |
2429 | ||
2430 | if (maskp) { | |
2431 | unsigned long long int mask; | |
2432 | ||
2433 | mask = 0; | |
2434 | for (i = 0; i < mf->n_bytes; i++) { | |
2435 | mask = (mask << 8) | maskp[i]; | |
2436 | } | |
2437 | ||
2438 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm | |
2439 | * not sure that that a bit-mask written in decimal is ever easier to | |
2440 | * understand than the same bit-mask written in hexadecimal. */ | |
2441 | ds_put_format(s, "/%#llx", mask); | |
2442 | } | |
2443 | } | |
2444 | ||
7257b535 | 2445 | static void |
8f75dea3 | 2446 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
2447 | { |
2448 | const struct frag_handling *h; | |
7257b535 | 2449 | |
eadef313 | 2450 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 2451 | value &= mask; |
7257b535 BP |
2452 | |
2453 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2454 | if (value == h->value && mask == h->mask) { | |
2455 | ds_put_cstr(s, h->name); | |
2456 | return; | |
2457 | } | |
2458 | } | |
2459 | ds_put_cstr(s, "<error>"); | |
2460 | } | |
2461 | ||
4fe3445a PS |
2462 | static void |
2463 | mf_format_tnl_flags_string(const ovs_be16 *valuep, struct ds *s) | |
2464 | { | |
2465 | format_flags(s, flow_tun_flag_to_string, ntohs(*valuep), '|'); | |
2466 | } | |
2467 | ||
6a885fd0 BP |
2468 | /* Appends to 's' a string representation of field 'mf' whose value is in |
2469 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
2470 | void | |
2471 | mf_format(const struct mf_field *mf, | |
2472 | const union mf_value *value, const union mf_value *mask, | |
2473 | struct ds *s) | |
2474 | { | |
2475 | if (mask) { | |
2476 | if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { | |
2477 | ds_put_cstr(s, "ANY"); | |
2478 | return; | |
2479 | } else if (is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
2480 | mask = NULL; | |
2481 | } | |
2482 | } | |
2483 | ||
2484 | switch (mf->string) { | |
72333065 JR |
2485 | case MFS_OFP_PORT_OXM: |
2486 | if (!mask) { | |
4e022ec0 | 2487 | ofp_port_t port; |
bc146369 | 2488 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
2489 | ofputil_format_port(port, s); |
2490 | break; | |
2491 | } | |
2492 | /* fall through */ | |
6a885fd0 BP |
2493 | case MFS_OFP_PORT: |
2494 | if (!mask) { | |
4e022ec0 | 2495 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), s); |
6a885fd0 BP |
2496 | break; |
2497 | } | |
2498 | /* fall through */ | |
2499 | case MFS_DECIMAL: | |
2500 | case MFS_HEXADECIMAL: | |
2501 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
2502 | break; | |
2503 | ||
2504 | case MFS_ETHERNET: | |
3b4d8ad3 | 2505 | eth_format_masked(value->mac, mask->mac, s); |
6a885fd0 BP |
2506 | break; |
2507 | ||
2508 | case MFS_IPV4: | |
2509 | ip_format_masked(value->be32, mask ? mask->be32 : htonl(UINT32_MAX), | |
2510 | s); | |
2511 | break; | |
2512 | ||
2513 | case MFS_IPV6: | |
2514 | print_ipv6_masked(s, &value->ipv6, mask ? &mask->ipv6 : NULL); | |
2515 | break; | |
2516 | ||
7257b535 | 2517 | case MFS_FRAG: |
8f75dea3 | 2518 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
2519 | break; |
2520 | ||
4fe3445a PS |
2521 | case MFS_TNL_FLAGS: |
2522 | mf_format_tnl_flags_string(&value->be16, s); | |
2523 | break; | |
2524 | ||
6a885fd0 BP |
2525 | default: |
2526 | NOT_REACHED(); | |
2527 | } | |
2528 | } | |
816fd533 | 2529 | \f |
9bab681f IY |
2530 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
2531 | * least-significant bits in 'x'. | |
2532 | */ | |
2533 | void | |
2534 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
2535 | const union mf_subvalue *x, struct flow *flow) | |
2536 | { | |
2537 | const struct mf_field *field = sf->field; | |
2538 | union mf_value value; | |
2539 | ||
2540 | mf_get_value(field, flow, &value); | |
158edc8d | 2541 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
2542 | sf->ofs, sf->n_bits); |
2543 | mf_set_flow_value(field, &value, flow); | |
2544 | } | |
2545 | ||
81a76618 | 2546 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 2547 | * least-significant bits in 'x'. |
615660a9 | 2548 | */ |
1b35df45 BP |
2549 | void |
2550 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 2551 | struct match *match) |
1b35df45 BP |
2552 | { |
2553 | const struct mf_field *field = sf->field; | |
2554 | union mf_value value, mask; | |
2555 | ||
81a76618 | 2556 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
2557 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
2558 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
81a76618 | 2559 | mf_set(field, &value, &mask, match); |
1b35df45 BP |
2560 | } |
2561 | ||
1b35df45 BP |
2562 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
2563 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
2564 | void | |
2565 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
2566 | union mf_subvalue *x) | |
2567 | { | |
2568 | union mf_value value; | |
2569 | ||
2570 | mf_get_value(sf->field, flow, &value); | |
2571 | ||
2572 | memset(x, 0, sizeof *x); | |
2573 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
2574 | x, sizeof *x, 0, | |
2575 | sf->n_bits); | |
2576 | } | |
2577 | ||
816fd533 BP |
2578 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
2579 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
2580 | * less. */ | |
2581 | uint64_t | |
2582 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
2583 | { | |
2584 | union mf_value value; | |
2585 | ||
2586 | mf_get_value(sf->field, flow, &value); | |
2587 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2588 | } | |
2589 | ||
2590 | /* Formats 'sf' into 's' in a format normally acceptable to | |
2591 | * mf_parse_subfield(). (It won't be acceptable if sf->field is NULL or if | |
2592 | * sf->field has no NXM name.) */ | |
2593 | void | |
2594 | mf_format_subfield(const struct mf_subfield *sf, struct ds *s) | |
2595 | { | |
2596 | if (!sf->field) { | |
2597 | ds_put_cstr(s, "<unknown>"); | |
2598 | } else if (sf->field->nxm_name) { | |
2599 | ds_put_cstr(s, sf->field->nxm_name); | |
2600 | } else if (sf->field->nxm_header) { | |
2601 | uint32_t header = sf->field->nxm_header; | |
2602 | ds_put_format(s, "%d:%d", NXM_VENDOR(header), NXM_FIELD(header)); | |
2603 | } else { | |
2604 | ds_put_cstr(s, sf->field->name); | |
2605 | } | |
2606 | ||
33500edd | 2607 | if (sf->field && sf->ofs == 0 && sf->n_bits == sf->field->n_bits) { |
816fd533 BP |
2608 | ds_put_cstr(s, "[]"); |
2609 | } else if (sf->n_bits == 1) { | |
2610 | ds_put_format(s, "[%d]", sf->ofs); | |
2611 | } else { | |
2612 | ds_put_format(s, "[%d..%d]", sf->ofs, sf->ofs + sf->n_bits - 1); | |
2613 | } | |
2614 | } | |
2615 | ||
2616 | static const struct mf_field * | |
2617 | mf_parse_subfield_name(const char *name, int name_len, bool *wild) | |
2618 | { | |
2619 | int i; | |
2620 | ||
2621 | *wild = name_len > 2 && !memcmp(&name[name_len - 2], "_W", 2); | |
2622 | if (*wild) { | |
2623 | name_len -= 2; | |
2624 | } | |
2625 | ||
2626 | for (i = 0; i < MFF_N_IDS; i++) { | |
2627 | const struct mf_field *mf = mf_from_id(i); | |
2628 | ||
2629 | if (mf->nxm_name | |
2630 | && !strncmp(mf->nxm_name, name, name_len) | |
2631 | && mf->nxm_name[name_len] == '\0') { | |
2632 | return mf; | |
2633 | } | |
b5e5143b BP |
2634 | if (mf->oxm_name |
2635 | && !strncmp(mf->oxm_name, name, name_len) | |
2636 | && mf->oxm_name[name_len] == '\0') { | |
2637 | return mf; | |
2638 | } | |
816fd533 BP |
2639 | } |
2640 | ||
2641 | return NULL; | |
2642 | } | |
2643 | ||
2644 | /* Parses a subfield from the beginning of '*sp' into 'sf'. If successful, | |
2645 | * returns NULL and advances '*sp' to the first byte following the parsed | |
2646 | * string. On failure, returns a malloc()'d error message, does not modify | |
2647 | * '*sp', and does not properly initialize 'sf'. | |
2648 | * | |
2649 | * The syntax parsed from '*sp' takes the form "header[start..end]" where | |
2650 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2651 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2652 | * may both be omitted (the [] are still required) to indicate an entire | |
2653 | * field. */ | |
bdda5aca | 2654 | char * WARN_UNUSED_RESULT |
816fd533 BP |
2655 | mf_parse_subfield__(struct mf_subfield *sf, const char **sp) |
2656 | { | |
2657 | const struct mf_field *field; | |
2658 | const char *name; | |
2659 | int start, end; | |
2660 | const char *s; | |
2661 | int name_len; | |
2662 | bool wild; | |
2663 | ||
2664 | s = *sp; | |
2665 | name = s; | |
2666 | name_len = strcspn(s, "["); | |
2667 | if (s[name_len] != '[') { | |
2668 | return xasprintf("%s: missing [ looking for field name", *sp); | |
2669 | } | |
2670 | ||
2671 | field = mf_parse_subfield_name(name, name_len, &wild); | |
2672 | if (!field) { | |
2673 | return xasprintf("%s: unknown field `%.*s'", *sp, name_len, s); | |
2674 | } | |
2675 | ||
2676 | s += name_len; | |
2677 | if (sscanf(s, "[%d..%d]", &start, &end) == 2) { | |
2678 | /* Nothing to do. */ | |
2679 | } else if (sscanf(s, "[%d]", &start) == 1) { | |
2680 | end = start; | |
2681 | } else if (!strncmp(s, "[]", 2)) { | |
2682 | start = 0; | |
2683 | end = field->n_bits - 1; | |
2684 | } else { | |
2685 | return xasprintf("%s: syntax error expecting [] or [<bit>] or " | |
2686 | "[<start>..<end>]", *sp); | |
2687 | } | |
2688 | s = strchr(s, ']') + 1; | |
2689 | ||
2690 | if (start > end) { | |
2691 | return xasprintf("%s: starting bit %d is after ending bit %d", | |
2692 | *sp, start, end); | |
2693 | } else if (start >= field->n_bits) { | |
2694 | return xasprintf("%s: starting bit %d is not valid because field is " | |
2695 | "only %d bits wide", *sp, start, field->n_bits); | |
2696 | } else if (end >= field->n_bits){ | |
2697 | return xasprintf("%s: ending bit %d is not valid because field is " | |
2698 | "only %d bits wide", *sp, end, field->n_bits); | |
2699 | } | |
2700 | ||
2701 | sf->field = field; | |
2702 | sf->ofs = start; | |
2703 | sf->n_bits = end - start + 1; | |
2704 | ||
2705 | *sp = s; | |
2706 | return NULL; | |
2707 | } | |
2708 | ||
bdda5aca BP |
2709 | /* Parses a subfield from the entirety of 's' into 'sf'. Returns NULL if |
2710 | * successful, otherwise a malloc()'d string describing the error. The caller | |
2711 | * is responsible for freeing the returned string. | |
816fd533 BP |
2712 | * |
2713 | * The syntax parsed from 's' takes the form "header[start..end]" where | |
2714 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2715 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2716 | * may both be omitted (the [] are still required) to indicate an entire | |
2717 | * field. */ | |
bdda5aca | 2718 | char * WARN_UNUSED_RESULT |
816fd533 BP |
2719 | mf_parse_subfield(struct mf_subfield *sf, const char *s) |
2720 | { | |
bdda5aca BP |
2721 | char *error = mf_parse_subfield__(sf, &s); |
2722 | if (!error && s[0]) { | |
2723 | error = xstrdup("unexpected input following field syntax"); | |
816fd533 | 2724 | } |
bdda5aca | 2725 | return error; |
816fd533 | 2726 | } |
9bab681f IY |
2727 | |
2728 | void | |
2729 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
2730 | { | |
2731 | int i; | |
2732 | ||
2733 | for (i = 0; i < ARRAY_SIZE(subvalue->u8); i++) { | |
2734 | if (subvalue->u8[i]) { | |
2735 | ds_put_format(s, "0x%"PRIx8, subvalue->u8[i]); | |
2736 | for (i++; i < ARRAY_SIZE(subvalue->u8); i++) { | |
2737 | ds_put_format(s, "%02"PRIx8, subvalue->u8[i]); | |
2738 | } | |
2739 | return; | |
2740 | } | |
2741 | } | |
2742 | ds_put_char(s, '0'); | |
2743 | } |