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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", |
db0b6c29 JR |
58 | OFPUTIL_P_NXM_OXM_ANY, |
59 | OFPUTIL_P_NXM_OXM_ANY, | |
4fe3445a PS |
60 | }, { |
61 | MFF_TUN_SRC, "tun_src", NULL, | |
62 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 63 | MFM_FULLY, |
4fe3445a PS |
64 | MFS_IPV4, |
65 | MFP_NONE, | |
0ad90c84 JR |
66 | true, |
67 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
68 | NXM_NX_TUN_IPV4_SRC, "NXM_NX_TUN_IPV4_SRC", | |
db0b6c29 JR |
69 | OFPUTIL_P_NXM_OXM_ANY, |
70 | OFPUTIL_P_NXM_OXM_ANY, | |
4fe3445a PS |
71 | }, { |
72 | MFF_TUN_DST, "tun_dst", NULL, | |
73 | MF_FIELD_SIZES(be32), | |
0ad90c84 | 74 | MFM_FULLY, |
4fe3445a PS |
75 | MFS_IPV4, |
76 | MFP_NONE, | |
0ad90c84 JR |
77 | true, |
78 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
79 | NXM_NX_TUN_IPV4_DST, "NXM_NX_TUN_IPV4_DST", | |
db0b6c29 JR |
80 | OFPUTIL_P_NXM_OXM_ANY, |
81 | OFPUTIL_P_NXM_OXM_ANY, | |
4fe3445a PS |
82 | }, { |
83 | MFF_TUN_FLAGS, "tun_flags", NULL, | |
84 | MF_FIELD_SIZES(be16), | |
85 | MFM_NONE, | |
86 | MFS_TNL_FLAGS, | |
87 | MFP_NONE, | |
88 | false, | |
89 | 0, NULL, | |
90 | 0, NULL, | |
db0b6c29 JR |
91 | OFPUTIL_P_NONE, |
92 | OFPUTIL_P_NONE, | |
4fe3445a | 93 | }, { |
216a32dd | 94 | MFF_TUN_TTL, "tun_ttl", NULL, |
4fe3445a PS |
95 | MF_FIELD_SIZES(u8), |
96 | MFM_NONE, | |
97 | MFS_DECIMAL, | |
98 | MFP_NONE, | |
99 | false, | |
100 | 0, NULL, | |
101 | 0, NULL, | |
db0b6c29 JR |
102 | OFPUTIL_P_NONE, |
103 | OFPUTIL_P_NONE, | |
4fe3445a | 104 | }, { |
216a32dd | 105 | MFF_TUN_TOS, "tun_tos", NULL, |
4fe3445a PS |
106 | MF_FIELD_SIZES(u8), |
107 | MFM_NONE, | |
108 | MFS_DECIMAL, | |
109 | MFP_NONE, | |
110 | false, | |
111 | 0, NULL, | |
112 | 0, NULL, | |
db0b6c29 JR |
113 | OFPUTIL_P_NONE, |
114 | OFPUTIL_P_NONE, | |
969fc56c JS |
115 | }, { |
116 | MFF_METADATA, "metadata", NULL, | |
117 | MF_FIELD_SIZES(be64), | |
0bdc4bec | 118 | MFM_FULLY, |
969fc56c JS |
119 | MFS_HEXADECIMAL, |
120 | MFP_NONE, | |
121 | true, | |
122 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
123 | OXM_OF_METADATA, "OXM_OF_METADATA", | |
db0b6c29 JR |
124 | OFPUTIL_P_NXM_OF11_UP, |
125 | OFPUTIL_P_NXM_OF11_UP, | |
6a885fd0 BP |
126 | }, { |
127 | MFF_IN_PORT, "in_port", NULL, | |
128 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 129 | MFM_NONE, |
6a885fd0 BP |
130 | MFS_OFP_PORT, |
131 | MFP_NONE, | |
557323cd | 132 | true, |
28da1f8f | 133 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
72333065 | 134 | NXM_OF_IN_PORT, "NXM_OF_IN_PORT", |
db0b6c29 JR |
135 | OFPUTIL_P_ANY, /* OF11+ via mapping to 32 bits. */ |
136 | OFPUTIL_P_NONE, | |
72333065 JR |
137 | }, { |
138 | MFF_IN_PORT_OXM, "in_port_oxm", NULL, | |
139 | MF_FIELD_SIZES(be32), | |
140 | MFM_NONE, | |
141 | MFS_OFP_PORT_OXM, | |
142 | MFP_NONE, | |
143 | true, | |
144 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", | |
36f3999b | 145 | OXM_OF_IN_PORT, "OXM_OF_IN_PORT", |
db0b6c29 JR |
146 | OFPUTIL_P_OF11_UP, |
147 | OFPUTIL_P_NONE, | |
1b567fb9 AA |
148 | }, { |
149 | MFF_SKB_PRIORITY, "skb_priority", NULL, | |
150 | MF_FIELD_SIZES(be32), | |
151 | MFM_NONE, | |
152 | MFS_HEXADECIMAL, | |
153 | MFP_NONE, | |
154 | false, | |
155 | 0, NULL, | |
156 | 0, NULL, | |
db0b6c29 JR |
157 | OFPUTIL_P_NONE, |
158 | OFPUTIL_P_NONE, | |
1b567fb9 | 159 | }, { |
1362e248 | 160 | MFF_PKT_MARK, "pkt_mark", NULL, |
1b567fb9 | 161 | MF_FIELD_SIZES(be32), |
ac923e91 | 162 | MFM_FULLY, |
1b567fb9 AA |
163 | MFS_HEXADECIMAL, |
164 | MFP_NONE, | |
ac923e91 JG |
165 | true, |
166 | NXM_NX_PKT_MARK, "NXM_NX_PKT_MARK", | |
167 | NXM_NX_PKT_MARK, "NXM_NX_PKT_MARK", | |
db0b6c29 JR |
168 | OFPUTIL_P_NXM_OXM_ANY, |
169 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
170 | }, |
171 | ||
172 | #define REGISTER(IDX) \ | |
173 | { \ | |
174 | MFF_REG##IDX, "reg" #IDX, NULL, \ | |
175 | MF_FIELD_SIZES(be32), \ | |
0bdc4bec | 176 | MFM_FULLY, \ |
6a885fd0 BP |
177 | MFS_HEXADECIMAL, \ |
178 | MFP_NONE, \ | |
28da1f8f | 179 | true, \ |
b5e5143b BP |
180 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ |
181 | NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ | |
db0b6c29 JR |
182 | OFPUTIL_P_NXM_OXM_ANY, \ |
183 | OFPUTIL_P_NXM_OXM_ANY, \ | |
6a885fd0 BP |
184 | } |
185 | #if FLOW_N_REGS > 0 | |
186 | REGISTER(0), | |
187 | #endif | |
188 | #if FLOW_N_REGS > 1 | |
189 | REGISTER(1), | |
190 | #endif | |
191 | #if FLOW_N_REGS > 2 | |
192 | REGISTER(2), | |
193 | #endif | |
194 | #if FLOW_N_REGS > 3 | |
195 | REGISTER(3), | |
196 | #endif | |
197 | #if FLOW_N_REGS > 4 | |
d2c0fed9 JP |
198 | REGISTER(4), |
199 | #endif | |
200 | #if FLOW_N_REGS > 5 | |
e9358af6 EJ |
201 | REGISTER(5), |
202 | #endif | |
203 | #if FLOW_N_REGS > 6 | |
204 | REGISTER(6), | |
205 | #endif | |
206 | #if FLOW_N_REGS > 7 | |
207 | REGISTER(7), | |
208 | #endif | |
209 | #if FLOW_N_REGS > 8 | |
6a885fd0 BP |
210 | #error |
211 | #endif | |
212 | ||
213 | /* ## -- ## */ | |
214 | /* ## L2 ## */ | |
215 | /* ## -- ## */ | |
216 | ||
217 | { | |
218 | MFF_ETH_SRC, "eth_src", "dl_src", | |
219 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 220 | MFM_FULLY, |
6a885fd0 BP |
221 | MFS_ETHERNET, |
222 | MFP_NONE, | |
28da1f8f BP |
223 | true, |
224 | NXM_OF_ETH_SRC, "NXM_OF_ETH_SRC", | |
36f3999b | 225 | OXM_OF_ETH_SRC, "OXM_OF_ETH_SRC", |
db0b6c29 JR |
226 | OFPUTIL_P_ANY, |
227 | OFPUTIL_P_NXM_OF11_UP, /* Bitwise masking only with NXM and OF11+! */ | |
6a885fd0 BP |
228 | }, { |
229 | MFF_ETH_DST, "eth_dst", "dl_dst", | |
230 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 231 | MFM_FULLY, |
6a885fd0 BP |
232 | MFS_ETHERNET, |
233 | MFP_NONE, | |
28da1f8f BP |
234 | true, |
235 | NXM_OF_ETH_DST, "NXM_OF_ETH_DST", | |
36f3999b | 236 | OXM_OF_ETH_DST, "OXM_OF_ETH_DST", |
db0b6c29 JR |
237 | OFPUTIL_P_ANY, |
238 | OFPUTIL_P_NXM_OF11_UP, /* Bitwise masking only with NXM and OF11+! */ | |
6a885fd0 BP |
239 | }, { |
240 | MFF_ETH_TYPE, "eth_type", "dl_type", | |
241 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 242 | MFM_NONE, |
6a885fd0 BP |
243 | MFS_HEXADECIMAL, |
244 | MFP_NONE, | |
28da1f8f BP |
245 | false, |
246 | NXM_OF_ETH_TYPE, "NXM_OF_ETH_TYPE", | |
36f3999b | 247 | OXM_OF_ETH_TYPE, "OXM_OF_ETH_TYPE", |
db0b6c29 JR |
248 | OFPUTIL_P_ANY, |
249 | OFPUTIL_P_NONE, | |
6a885fd0 BP |
250 | }, |
251 | ||
252 | { | |
253 | MFF_VLAN_TCI, "vlan_tci", NULL, | |
254 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 255 | MFM_FULLY, |
6a885fd0 BP |
256 | MFS_HEXADECIMAL, |
257 | MFP_NONE, | |
28da1f8f BP |
258 | true, |
259 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", | |
b5e5143b | 260 | NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", |
db0b6c29 JR |
261 | OFPUTIL_P_ANY, |
262 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 | 263 | }, { |
441c57a9 | 264 | MFF_DL_VLAN, "dl_vlan", NULL, |
6a885fd0 | 265 | sizeof(ovs_be16), 12, |
0bdc4bec | 266 | MFM_NONE, |
6a885fd0 BP |
267 | MFS_DECIMAL, |
268 | MFP_NONE, | |
28da1f8f | 269 | true, |
cc34bc8c BP |
270 | 0, NULL, |
271 | 0, NULL, | |
db0b6c29 JR |
272 | OFPUTIL_P_ANY, |
273 | OFPUTIL_P_NXM_OXM_ANY, | |
cc34bc8c BP |
274 | }, { |
275 | MFF_VLAN_VID, "vlan_vid", NULL, | |
276 | sizeof(ovs_be16), 12, | |
0bdc4bec | 277 | MFM_FULLY, |
cc34bc8c BP |
278 | MFS_DECIMAL, |
279 | MFP_NONE, | |
280 | true, | |
b5e5143b | 281 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
36f3999b | 282 | OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", |
db0b6c29 JR |
283 | OFPUTIL_P_ANY, |
284 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 | 285 | }, { |
441c57a9 | 286 | MFF_DL_VLAN_PCP, "dl_vlan_pcp", NULL, |
6a885fd0 | 287 | 1, 3, |
0bdc4bec | 288 | MFM_NONE, |
6a885fd0 BP |
289 | MFS_DECIMAL, |
290 | MFP_NONE, | |
28da1f8f | 291 | true, |
cc34bc8c BP |
292 | 0, NULL, |
293 | 0, NULL, | |
db0b6c29 JR |
294 | OFPUTIL_P_ANY, /* Will be mapped to NXM and OXM. */ |
295 | OFPUTIL_P_NONE, | |
cc34bc8c BP |
296 | }, { |
297 | MFF_VLAN_PCP, "vlan_pcp", NULL, | |
298 | 1, 3, | |
0bdc4bec | 299 | MFM_NONE, |
cc34bc8c | 300 | MFS_DECIMAL, |
8069b0da | 301 | MFP_VLAN_VID, |
cc34bc8c | 302 | true, |
b5e5143b | 303 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
36f3999b | 304 | OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", |
db0b6c29 JR |
305 | OFPUTIL_P_ANY, /* Will be mapped to OF10 and NXM. */ |
306 | OFPUTIL_P_NONE, | |
6a885fd0 BP |
307 | }, |
308 | ||
b02475c5 SH |
309 | /* ## ---- ## */ |
310 | /* ## L2.5 ## */ | |
311 | /* ## ---- ## */ | |
312 | { | |
313 | MFF_MPLS_LABEL, "mpls_label", NULL, | |
314 | 4, 20, | |
315 | MFM_NONE, | |
316 | MFS_DECIMAL, | |
317 | MFP_MPLS, | |
318 | true, | |
319 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
320 | OXM_OF_MPLS_LABEL, "OXM_OF_MPLS_LABEL", | |
db0b6c29 JR |
321 | OFPUTIL_P_NXM_OF11_UP, |
322 | OFPUTIL_P_NONE, | |
b02475c5 SH |
323 | }, { |
324 | MFF_MPLS_TC, "mpls_tc", NULL, | |
325 | 1, 3, | |
326 | MFM_NONE, | |
327 | MFS_DECIMAL, | |
328 | MFP_MPLS, | |
329 | true, | |
330 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
331 | OXM_OF_MPLS_TC, "OXM_OF_MPLS_TC", | |
db0b6c29 JR |
332 | OFPUTIL_P_NXM_OF11_UP, |
333 | OFPUTIL_P_NONE, | |
b02475c5 SH |
334 | }, { |
335 | MFF_MPLS_BOS, "mpls_bos", NULL, | |
336 | 1, 1, | |
337 | MFM_NONE, | |
338 | MFS_DECIMAL, | |
339 | MFP_MPLS, | |
340 | false, | |
341 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
342 | OXM_OF_MPLS_BOS, "OXM_OF_MPLS_BOS", | |
db0b6c29 JR |
343 | OFPUTIL_P_NXM_OXM_ANY, |
344 | OFPUTIL_P_NONE, | |
b02475c5 SH |
345 | }, |
346 | ||
6a885fd0 BP |
347 | /* ## -- ## */ |
348 | /* ## L3 ## */ | |
349 | /* ## -- ## */ | |
350 | ||
351 | { | |
352 | MFF_IPV4_SRC, "ip_src", "nw_src", | |
353 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 354 | MFM_FULLY, |
6a885fd0 BP |
355 | MFS_IPV4, |
356 | MFP_IPV4, | |
28da1f8f BP |
357 | true, |
358 | NXM_OF_IP_SRC, "NXM_OF_IP_SRC", | |
36f3999b | 359 | OXM_OF_IPV4_SRC, "OXM_OF_IPV4_SRC", |
db0b6c29 JR |
360 | OFPUTIL_P_ANY, |
361 | OFPUTIL_P_NXM_OF11_UP, | |
6a885fd0 BP |
362 | }, { |
363 | MFF_IPV4_DST, "ip_dst", "nw_dst", | |
364 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 365 | MFM_FULLY, |
6a885fd0 BP |
366 | MFS_IPV4, |
367 | MFP_IPV4, | |
28da1f8f BP |
368 | true, |
369 | NXM_OF_IP_DST, "NXM_OF_IP_DST", | |
36f3999b | 370 | OXM_OF_IPV4_DST, "OXM_OF_IPV4_DST", |
db0b6c29 JR |
371 | OFPUTIL_P_ANY, |
372 | OFPUTIL_P_NXM_OF11_UP, | |
6a885fd0 BP |
373 | }, |
374 | ||
375 | { | |
376 | MFF_IPV6_SRC, "ipv6_src", NULL, | |
377 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 378 | MFM_FULLY, |
6a885fd0 BP |
379 | MFS_IPV6, |
380 | MFP_IPV6, | |
28da1f8f BP |
381 | true, |
382 | NXM_NX_IPV6_SRC, "NXM_NX_IPV6_SRC", | |
36f3999b | 383 | OXM_OF_IPV6_SRC, "OXM_OF_IPV6_SRC", |
db0b6c29 JR |
384 | OFPUTIL_P_NXM_OXM_ANY, |
385 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
386 | }, { |
387 | MFF_IPV6_DST, "ipv6_dst", NULL, | |
388 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 389 | MFM_FULLY, |
6a885fd0 BP |
390 | MFS_IPV6, |
391 | MFP_IPV6, | |
28da1f8f BP |
392 | true, |
393 | NXM_NX_IPV6_DST, "NXM_NX_IPV6_DST", | |
36f3999b | 394 | OXM_OF_IPV6_DST, "OXM_OF_IPV6_DST", |
db0b6c29 JR |
395 | OFPUTIL_P_NXM_OXM_ANY, |
396 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 | 397 | }, |
fa8223b7 JP |
398 | { |
399 | MFF_IPV6_LABEL, "ipv6_label", NULL, | |
400 | 4, 20, | |
0bdc4bec | 401 | MFM_FULLY, |
fa8223b7 JP |
402 | MFS_HEXADECIMAL, |
403 | MFP_IPV6, | |
28da1f8f BP |
404 | false, |
405 | NXM_NX_IPV6_LABEL, "NXM_NX_IPV6_LABEL", | |
36f3999b | 406 | OXM_OF_IPV6_FLABEL, "OXM_OF_IPV6_FLABEL", |
db0b6c29 JR |
407 | OFPUTIL_P_NXM_OXM_ANY, |
408 | OFPUTIL_P_NXM_OXM_ANY, | |
fa8223b7 | 409 | }, |
6a885fd0 BP |
410 | |
411 | { | |
412 | MFF_IP_PROTO, "nw_proto", NULL, | |
413 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 414 | MFM_NONE, |
6a885fd0 BP |
415 | MFS_DECIMAL, |
416 | MFP_IP_ANY, | |
28da1f8f BP |
417 | false, |
418 | NXM_OF_IP_PROTO, "NXM_OF_IP_PROTO", | |
36f3999b | 419 | OXM_OF_IP_PROTO, "OXM_OF_IP_PROTO", |
db0b6c29 JR |
420 | OFPUTIL_P_ANY, |
421 | OFPUTIL_P_NONE, | |
6a885fd0 | 422 | }, { |
530180fd | 423 | MFF_IP_DSCP, "nw_tos", NULL, |
6a885fd0 | 424 | MF_FIELD_SIZES(u8), |
0bdc4bec | 425 | MFM_NONE, |
6a885fd0 BP |
426 | MFS_DECIMAL, |
427 | MFP_IP_ANY, | |
28da1f8f | 428 | true, |
36f3999b | 429 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
1638b906 | 430 | NXM_OF_IP_TOS, "NXM_OF_IP_TOS", |
db0b6c29 JR |
431 | OFPUTIL_P_ANY, /* Will be shifted for OXM. */ |
432 | OFPUTIL_P_NONE, | |
1638b906 BP |
433 | }, { |
434 | MFF_IP_DSCP_SHIFTED, "nw_tos_shifted", NULL, | |
435 | MF_FIELD_SIZES(u8), | |
436 | MFM_NONE, | |
437 | MFS_DECIMAL, | |
438 | MFP_IP_ANY, | |
439 | true, | |
440 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", | |
36f3999b | 441 | OXM_OF_IP_DSCP, "OXM_OF_IP_DSCP", |
db0b6c29 JR |
442 | OFPUTIL_P_ANY, /* Will be shifted for non-OXM. */ |
443 | OFPUTIL_P_NONE, | |
530180fd JP |
444 | }, { |
445 | MFF_IP_ECN, "nw_ecn", NULL, | |
446 | 1, 2, | |
0bdc4bec | 447 | MFM_NONE, |
530180fd JP |
448 | MFS_DECIMAL, |
449 | MFP_IP_ANY, | |
28da1f8f BP |
450 | true, |
451 | NXM_NX_IP_ECN, "NXM_NX_IP_ECN", | |
36f3999b | 452 | OXM_OF_IP_ECN, "OXM_OF_IP_ECN", |
db0b6c29 JR |
453 | OFPUTIL_P_NXM_OXM_ANY, |
454 | OFPUTIL_P_NONE, | |
a61680c6 JP |
455 | }, { |
456 | MFF_IP_TTL, "nw_ttl", NULL, | |
457 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 458 | MFM_NONE, |
a61680c6 JP |
459 | MFS_DECIMAL, |
460 | MFP_IP_ANY, | |
28da1f8f | 461 | true, |
36f3999b | 462 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
b5e5143b | 463 | NXM_NX_IP_TTL, "NXM_NX_IP_TTL", |
db0b6c29 JR |
464 | OFPUTIL_P_NXM_OXM_ANY, |
465 | OFPUTIL_P_NONE, | |
7257b535 BP |
466 | }, { |
467 | MFF_IP_FRAG, "ip_frag", NULL, | |
468 | 1, 2, | |
0bdc4bec | 469 | MFM_FULLY, |
7257b535 BP |
470 | MFS_FRAG, |
471 | MFP_IP_ANY, | |
28da1f8f | 472 | false, |
36f3999b | 473 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
b5e5143b | 474 | NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", |
db0b6c29 JR |
475 | OFPUTIL_P_NXM_OXM_ANY, |
476 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
477 | }, |
478 | ||
479 | { | |
480 | MFF_ARP_OP, "arp_op", NULL, | |
481 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 482 | MFM_NONE, |
6a885fd0 BP |
483 | MFS_DECIMAL, |
484 | MFP_ARP, | |
f6c8a6b1 | 485 | true, |
28da1f8f | 486 | NXM_OF_ARP_OP, "NXM_OF_ARP_OP", |
36f3999b | 487 | OXM_OF_ARP_OP, "OXM_OF_ARP_OP", |
db0b6c29 JR |
488 | OFPUTIL_P_ANY, |
489 | OFPUTIL_P_NONE, | |
6a885fd0 BP |
490 | }, { |
491 | MFF_ARP_SPA, "arp_spa", NULL, | |
492 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 493 | MFM_FULLY, |
6a885fd0 BP |
494 | MFS_IPV4, |
495 | MFP_ARP, | |
f6c8a6b1 | 496 | true, |
28da1f8f | 497 | NXM_OF_ARP_SPA, "NXM_OF_ARP_SPA", |
36f3999b | 498 | OXM_OF_ARP_SPA, "OXM_OF_ARP_SPA", |
db0b6c29 JR |
499 | OFPUTIL_P_ANY, |
500 | OFPUTIL_P_NXM_OF11_UP, | |
6a885fd0 BP |
501 | }, { |
502 | MFF_ARP_TPA, "arp_tpa", NULL, | |
503 | MF_FIELD_SIZES(be32), | |
0bdc4bec | 504 | MFM_FULLY, |
6a885fd0 BP |
505 | MFS_IPV4, |
506 | MFP_ARP, | |
f6c8a6b1 | 507 | true, |
28da1f8f | 508 | NXM_OF_ARP_TPA, "NXM_OF_ARP_TPA", |
36f3999b | 509 | OXM_OF_ARP_TPA, "OXM_OF_ARP_TPA", |
db0b6c29 JR |
510 | OFPUTIL_P_ANY, |
511 | OFPUTIL_P_NXM_OF11_UP, | |
6a885fd0 BP |
512 | }, { |
513 | MFF_ARP_SHA, "arp_sha", NULL, | |
514 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 515 | MFM_FULLY, |
6a885fd0 BP |
516 | MFS_ETHERNET, |
517 | MFP_ARP, | |
f6c8a6b1 | 518 | true, |
28da1f8f | 519 | NXM_NX_ARP_SHA, "NXM_NX_ARP_SHA", |
36f3999b | 520 | OXM_OF_ARP_SHA, "OXM_OF_ARP_SHA", |
db0b6c29 JR |
521 | OFPUTIL_P_NXM_OXM_ANY, |
522 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
523 | }, { |
524 | MFF_ARP_THA, "arp_tha", NULL, | |
525 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 526 | MFM_FULLY, |
6a885fd0 BP |
527 | MFS_ETHERNET, |
528 | MFP_ARP, | |
f6c8a6b1 | 529 | true, |
28da1f8f | 530 | NXM_NX_ARP_THA, "NXM_NX_ARP_THA", |
36f3999b | 531 | OXM_OF_ARP_THA, "OXM_OF_ARP_THA", |
db0b6c29 JR |
532 | OFPUTIL_P_NXM_OXM_ANY, |
533 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
534 | }, |
535 | ||
536 | /* ## -- ## */ | |
537 | /* ## L4 ## */ | |
538 | /* ## -- ## */ | |
539 | ||
540 | { | |
541 | MFF_TCP_SRC, "tcp_src", "tp_src", | |
542 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 543 | MFM_FULLY, |
6a885fd0 BP |
544 | MFS_DECIMAL, |
545 | MFP_TCP, | |
28da1f8f BP |
546 | true, |
547 | NXM_OF_TCP_SRC, "NXM_OF_TCP_SRC", | |
36f3999b | 548 | OXM_OF_TCP_SRC, "OXM_OF_TCP_SRC", |
db0b6c29 JR |
549 | OFPUTIL_P_ANY, |
550 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
551 | }, { |
552 | MFF_TCP_DST, "tcp_dst", "tp_dst", | |
553 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 554 | MFM_FULLY, |
6a885fd0 BP |
555 | MFS_DECIMAL, |
556 | MFP_TCP, | |
28da1f8f BP |
557 | true, |
558 | NXM_OF_TCP_DST, "NXM_OF_TCP_DST", | |
36f3999b | 559 | OXM_OF_TCP_DST, "OXM_OF_TCP_DST", |
db0b6c29 JR |
560 | OFPUTIL_P_ANY, |
561 | OFPUTIL_P_NXM_OXM_ANY, | |
dc235f7f JR |
562 | }, { |
563 | MFF_TCP_FLAGS, "tcp_flags", NULL, | |
564 | 2, 12, | |
565 | MFM_FULLY, | |
566 | MFS_HEXADECIMAL, | |
567 | MFP_TCP, | |
568 | false, | |
569 | NXM_NX_TCP_FLAGS, "NXM_NX_TCP_FLAGS", | |
570 | NXM_NX_TCP_FLAGS, "NXM_NX_TCP_FLAGS", | |
571 | OFPUTIL_P_NXM_OXM_ANY, | |
572 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
573 | }, |
574 | ||
575 | { | |
576 | MFF_UDP_SRC, "udp_src", NULL, | |
577 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 578 | MFM_FULLY, |
6a885fd0 BP |
579 | MFS_DECIMAL, |
580 | MFP_UDP, | |
28da1f8f BP |
581 | true, |
582 | NXM_OF_UDP_SRC, "NXM_OF_UDP_SRC", | |
36f3999b | 583 | OXM_OF_UDP_SRC, "OXM_OF_UDP_SRC", |
db0b6c29 JR |
584 | OFPUTIL_P_ANY, |
585 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
586 | }, { |
587 | MFF_UDP_DST, "udp_dst", NULL, | |
588 | MF_FIELD_SIZES(be16), | |
0bdc4bec | 589 | MFM_FULLY, |
6a885fd0 BP |
590 | MFS_DECIMAL, |
591 | MFP_UDP, | |
28da1f8f BP |
592 | true, |
593 | NXM_OF_UDP_DST, "NXM_OF_UDP_DST", | |
36f3999b | 594 | OXM_OF_UDP_DST, "OXM_OF_UDP_DST", |
db0b6c29 JR |
595 | OFPUTIL_P_ANY, |
596 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
597 | }, |
598 | ||
0d56eaf2 JS |
599 | { |
600 | MFF_SCTP_SRC, "sctp_src", NULL, | |
601 | MF_FIELD_SIZES(be16), | |
602 | MFM_FULLY, | |
603 | MFS_DECIMAL, | |
604 | MFP_SCTP, | |
605 | true, | |
606 | OXM_OF_SCTP_SRC, "OXM_OF_SCTP_SRC", | |
607 | OXM_OF_SCTP_SRC, "OXM_OF_SCTP_SRC", | |
db0b6c29 JR |
608 | OFPUTIL_P_NXM_OF11_UP, |
609 | OFPUTIL_P_NXM_OXM_ANY, | |
0d56eaf2 JS |
610 | }, { |
611 | MFF_SCTP_DST, "sctp_dst", NULL, | |
612 | MF_FIELD_SIZES(be16), | |
613 | MFM_FULLY, | |
614 | MFS_DECIMAL, | |
615 | MFP_SCTP, | |
616 | true, | |
617 | OXM_OF_SCTP_DST, "OXM_OF_SCTP_DST", | |
618 | OXM_OF_SCTP_DST, "OXM_OF_SCTP_DST", | |
db0b6c29 JR |
619 | OFPUTIL_P_NXM_OF11_UP, |
620 | OFPUTIL_P_NXM_OXM_ANY, | |
0d56eaf2 JS |
621 | }, |
622 | ||
6a885fd0 | 623 | { |
268a95e0 | 624 | MFF_ICMPV4_TYPE, "icmp_type", NULL, |
6a885fd0 | 625 | MF_FIELD_SIZES(u8), |
0bdc4bec | 626 | MFM_NONE, |
6a885fd0 | 627 | MFS_DECIMAL, |
268a95e0 | 628 | MFP_ICMPV4, |
28da1f8f BP |
629 | false, |
630 | NXM_OF_ICMP_TYPE, "NXM_OF_ICMP_TYPE", | |
36f3999b | 631 | OXM_OF_ICMPV4_TYPE, "OXM_OF_ICMPV4_TYPE", |
db0b6c29 JR |
632 | OFPUTIL_P_ANY, |
633 | OFPUTIL_P_NONE, | |
6a885fd0 | 634 | }, { |
268a95e0 | 635 | MFF_ICMPV4_CODE, "icmp_code", NULL, |
6a885fd0 | 636 | MF_FIELD_SIZES(u8), |
0bdc4bec | 637 | MFM_NONE, |
6a885fd0 | 638 | MFS_DECIMAL, |
268a95e0 | 639 | MFP_ICMPV4, |
28da1f8f BP |
640 | false, |
641 | NXM_OF_ICMP_CODE, "NXM_OF_ICMP_CODE", | |
36f3999b | 642 | OXM_OF_ICMPV4_CODE, "OXM_OF_ICMPV4_CODE", |
db0b6c29 JR |
643 | OFPUTIL_P_ANY, |
644 | OFPUTIL_P_NONE, | |
28da1f8f BP |
645 | }, |
646 | ||
647 | { | |
268a95e0 BP |
648 | MFF_ICMPV6_TYPE, "icmpv6_type", NULL, |
649 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 650 | MFM_NONE, |
268a95e0 BP |
651 | MFS_DECIMAL, |
652 | MFP_ICMPV6, | |
28da1f8f BP |
653 | false, |
654 | NXM_NX_ICMPV6_TYPE, "NXM_NX_ICMPV6_TYPE", | |
36f3999b | 655 | OXM_OF_ICMPV6_TYPE, "OXM_OF_ICMPV6_TYPE", |
db0b6c29 JR |
656 | OFPUTIL_P_NXM_OXM_ANY, |
657 | OFPUTIL_P_NONE, | |
268a95e0 BP |
658 | }, { |
659 | MFF_ICMPV6_CODE, "icmpv6_code", NULL, | |
660 | MF_FIELD_SIZES(u8), | |
0bdc4bec | 661 | MFM_NONE, |
268a95e0 BP |
662 | MFS_DECIMAL, |
663 | MFP_ICMPV6, | |
28da1f8f BP |
664 | false, |
665 | NXM_NX_ICMPV6_CODE, "NXM_NX_ICMPV6_CODE", | |
36f3999b | 666 | OXM_OF_ICMPV6_CODE, "OXM_OF_ICMPV6_CODE", |
db0b6c29 JR |
667 | OFPUTIL_P_NXM_OXM_ANY, |
668 | OFPUTIL_P_NONE, | |
6a885fd0 BP |
669 | }, |
670 | ||
671 | /* ## ---- ## */ | |
672 | /* ## L"5" ## */ | |
673 | /* ## ---- ## */ | |
674 | ||
675 | { | |
676 | MFF_ND_TARGET, "nd_target", NULL, | |
677 | MF_FIELD_SIZES(ipv6), | |
0bdc4bec | 678 | MFM_FULLY, |
6a885fd0 BP |
679 | MFS_IPV6, |
680 | MFP_ND, | |
28da1f8f BP |
681 | false, |
682 | NXM_NX_ND_TARGET, "NXM_NX_ND_TARGET", | |
36f3999b | 683 | OXM_OF_IPV6_ND_TARGET, "OXM_OF_IPV6_ND_TARGET", |
db0b6c29 JR |
684 | OFPUTIL_P_NXM_OXM_ANY, |
685 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
686 | }, { |
687 | MFF_ND_SLL, "nd_sll", NULL, | |
688 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 689 | MFM_FULLY, |
6a885fd0 BP |
690 | MFS_ETHERNET, |
691 | MFP_ND_SOLICIT, | |
28da1f8f BP |
692 | false, |
693 | NXM_NX_ND_SLL, "NXM_NX_ND_SLL", | |
36f3999b | 694 | OXM_OF_IPV6_ND_SLL, "OXM_OF_IPV6_ND_SLL", |
db0b6c29 JR |
695 | OFPUTIL_P_NXM_OXM_ANY, |
696 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
697 | }, { |
698 | MFF_ND_TLL, "nd_tll", NULL, | |
699 | MF_FIELD_SIZES(mac), | |
0bdc4bec | 700 | MFM_FULLY, |
6a885fd0 BP |
701 | MFS_ETHERNET, |
702 | MFP_ND_ADVERT, | |
28da1f8f BP |
703 | false, |
704 | NXM_NX_ND_TLL, "NXM_NX_ND_TLL", | |
36f3999b | 705 | OXM_OF_IPV6_ND_TLL, "OXM_OF_IPV6_ND_TLL", |
db0b6c29 JR |
706 | OFPUTIL_P_NXM_OXM_ANY, |
707 | OFPUTIL_P_NXM_OXM_ANY, | |
6a885fd0 BP |
708 | } |
709 | }; | |
710 | ||
b5e5143b | 711 | /* Maps an NXM or OXM header value to an mf_field. */ |
28da1f8f | 712 | struct nxm_field { |
b5e5143b BP |
713 | struct hmap_node hmap_node; /* In 'all_fields' hmap. */ |
714 | uint32_t header; /* NXM or OXM header value. */ | |
28da1f8f BP |
715 | const struct mf_field *mf; |
716 | }; | |
717 | ||
b5e5143b | 718 | /* Contains 'struct nxm_field's. */ |
4663f9e0 BP |
719 | static struct hmap all_fields; |
720 | ||
721 | /* Maps from an mf_field's 'name' or 'extra_name' to the mf_field. */ | |
722 | static struct shash mf_by_name; | |
28da1f8f | 723 | |
816fd533 BP |
724 | /* Rate limit for parse errors. These always indicate a bug in an OpenFlow |
725 | * controller and so there's not much point in showing a lot of them. */ | |
726 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
727 | ||
b5e5143b | 728 | const struct mf_field *mf_from_nxm_header__(uint32_t header); |
4663f9e0 | 729 | static void nxm_init(void); |
b5e5143b | 730 | |
6a885fd0 BP |
731 | /* Returns the field with the given 'id'. */ |
732 | const struct mf_field * | |
733 | mf_from_id(enum mf_field_id id) | |
734 | { | |
cb22974d | 735 | ovs_assert((unsigned int) id < MFF_N_IDS); |
6a885fd0 BP |
736 | return &mf_fields[id]; |
737 | } | |
738 | ||
739 | /* Returns the field with the given 'name', or a null pointer if no field has | |
740 | * that name. */ | |
741 | const struct mf_field * | |
742 | mf_from_name(const char *name) | |
743 | { | |
4663f9e0 | 744 | nxm_init(); |
6a885fd0 BP |
745 | return shash_find_data(&mf_by_name, name); |
746 | } | |
747 | ||
28da1f8f | 748 | static void |
b5e5143b | 749 | add_nxm_field(uint32_t header, const struct mf_field *mf) |
28da1f8f BP |
750 | { |
751 | struct nxm_field *f; | |
752 | ||
753 | f = xmalloc(sizeof *f); | |
b5e5143b BP |
754 | hmap_insert(&all_fields, &f->hmap_node, hash_int(header, 0)); |
755 | f->header = header; | |
28da1f8f BP |
756 | f->mf = mf; |
757 | } | |
758 | ||
b5ae8913 SH |
759 | static void |
760 | nxm_init_add_field(const struct mf_field *mf, uint32_t header) | |
761 | { | |
b5e5143b | 762 | if (header) { |
cb22974d | 763 | ovs_assert(!mf_from_nxm_header__(header)); |
b5e5143b BP |
764 | add_nxm_field(header, mf); |
765 | if (mf->maskable != MFM_NONE) { | |
766 | add_nxm_field(NXM_MAKE_WILD_HEADER(header), mf); | |
767 | } | |
b5ae8913 | 768 | } |
b5ae8913 | 769 | } |
b5ae8913 | 770 | |
28da1f8f | 771 | static void |
4663f9e0 | 772 | nxm_do_init(void) |
28da1f8f | 773 | { |
216a32dd | 774 | int i; |
28da1f8f | 775 | |
4663f9e0 BP |
776 | hmap_init(&all_fields); |
777 | shash_init(&mf_by_name); | |
216a32dd JR |
778 | for (i = 0; i < MFF_N_IDS; i++) { |
779 | const struct mf_field *mf = &mf_fields[i]; | |
780 | ||
781 | ovs_assert(mf->id == i); /* Fields must be in the enum order. */ | |
782 | ||
b5ae8913 | 783 | nxm_init_add_field(mf, mf->nxm_header); |
b5e5143b BP |
784 | if (mf->oxm_header != mf->nxm_header) { |
785 | nxm_init_add_field(mf, mf->oxm_header); | |
786 | } | |
4663f9e0 BP |
787 | |
788 | shash_add_once(&mf_by_name, mf->name, mf); | |
789 | if (mf->extra_name) { | |
790 | shash_add_once(&mf_by_name, mf->extra_name, mf); | |
791 | } | |
28da1f8f | 792 | } |
28da1f8f BP |
793 | } |
794 | ||
4663f9e0 BP |
795 | static void |
796 | nxm_init(void) | |
797 | { | |
798 | static pthread_once_t once = PTHREAD_ONCE_INIT; | |
799 | pthread_once(&once, nxm_do_init); | |
800 | } | |
801 | ||
28da1f8f BP |
802 | const struct mf_field * |
803 | mf_from_nxm_header(uint32_t header) | |
804 | { | |
4663f9e0 | 805 | nxm_init(); |
b5e5143b BP |
806 | return mf_from_nxm_header__(header); |
807 | } | |
28da1f8f | 808 | |
b5e5143b BP |
809 | const struct mf_field * |
810 | mf_from_nxm_header__(uint32_t header) | |
811 | { | |
812 | const struct nxm_field *f; | |
813 | ||
814 | HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0), &all_fields) { | |
815 | if (f->header == header) { | |
28da1f8f BP |
816 | return f->mf; |
817 | } | |
818 | } | |
819 | ||
820 | return NULL; | |
821 | } | |
822 | ||
6a885fd0 BP |
823 | /* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc' |
824 | * specifies at least one bit in the field. | |
825 | * | |
826 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
827 | * meets 'mf''s prerequisites. */ | |
828 | bool | |
829 | mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) | |
830 | { | |
831 | switch (mf->id) { | |
4fe3445a | 832 | case MFF_TUN_SRC: |
0ad90c84 | 833 | return !wc->masks.tunnel.ip_src; |
4fe3445a | 834 | case MFF_TUN_DST: |
0ad90c84 JR |
835 | return !wc->masks.tunnel.ip_dst; |
836 | case MFF_TUN_ID: | |
4fe3445a PS |
837 | case MFF_TUN_TOS: |
838 | case MFF_TUN_TTL: | |
839 | case MFF_TUN_FLAGS: | |
296e07ac | 840 | return !wc->masks.tunnel.tun_id; |
969fc56c | 841 | case MFF_METADATA: |
26720e24 | 842 | return !wc->masks.metadata; |
0bdc4bec | 843 | case MFF_IN_PORT: |
72333065 | 844 | case MFF_IN_PORT_OXM: |
4e022ec0 | 845 | return !wc->masks.in_port.ofp_port; |
1b567fb9 AA |
846 | case MFF_SKB_PRIORITY: |
847 | return !wc->masks.skb_priority; | |
1362e248 JG |
848 | case MFF_PKT_MARK: |
849 | return !wc->masks.pkt_mark; | |
0d7e2fe4 | 850 | CASE_MFF_REGS: |
26720e24 | 851 | return !wc->masks.regs[mf->id - MFF_REG0]; |
6a885fd0 | 852 | |
73c0ce34 | 853 | case MFF_ETH_SRC: |
26720e24 | 854 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 855 | case MFF_ETH_DST: |
26720e24 | 856 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 857 | case MFF_ETH_TYPE: |
26720e24 | 858 | return !wc->masks.dl_type; |
6a885fd0 | 859 | |
e878338b SH |
860 | case MFF_ARP_SHA: |
861 | case MFF_ND_SLL: | |
26720e24 | 862 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
863 | |
864 | case MFF_ARP_THA: | |
865 | case MFF_ND_TLL: | |
26720e24 | 866 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 867 | |
6a885fd0 | 868 | case MFF_VLAN_TCI: |
26720e24 | 869 | return !wc->masks.vlan_tci; |
441c57a9 | 870 | case MFF_DL_VLAN: |
26720e24 | 871 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 872 | case MFF_VLAN_VID: |
26720e24 | 873 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 874 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 875 | case MFF_VLAN_PCP: |
26720e24 | 876 | return !(wc->masks.vlan_tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 877 | |
b02475c5 SH |
878 | case MFF_MPLS_LABEL: |
879 | return !(wc->masks.mpls_lse & htonl(MPLS_LABEL_MASK)); | |
880 | case MFF_MPLS_TC: | |
881 | return !(wc->masks.mpls_lse & htonl(MPLS_TC_MASK)); | |
882 | case MFF_MPLS_BOS: | |
883 | return !(wc->masks.mpls_lse & htonl(MPLS_BOS_MASK)); | |
884 | ||
6a885fd0 | 885 | case MFF_IPV4_SRC: |
26720e24 | 886 | return !wc->masks.nw_src; |
6a885fd0 | 887 | case MFF_IPV4_DST: |
26720e24 | 888 | return !wc->masks.nw_dst; |
6a885fd0 BP |
889 | |
890 | case MFF_IPV6_SRC: | |
26720e24 | 891 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 892 | case MFF_IPV6_DST: |
26720e24 | 893 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 894 | |
32455024 | 895 | case MFF_IPV6_LABEL: |
26720e24 | 896 | return !wc->masks.ipv6_label; |
32455024 | 897 | |
851d3105 | 898 | case MFF_IP_PROTO: |
26720e24 | 899 | return !wc->masks.nw_proto; |
5d9499c4 | 900 | case MFF_IP_DSCP: |
1638b906 | 901 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 902 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 903 | case MFF_IP_ECN: |
26720e24 | 904 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 905 | case MFF_IP_TTL: |
26720e24 | 906 | return !wc->masks.nw_ttl; |
5d9499c4 | 907 | |
47284b1f | 908 | case MFF_ND_TARGET: |
26720e24 | 909 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 910 | |
7257b535 | 911 | case MFF_IP_FRAG: |
26720e24 | 912 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 913 | |
851d3105 | 914 | case MFF_ARP_OP: |
26720e24 | 915 | return !wc->masks.nw_proto; |
6a885fd0 | 916 | case MFF_ARP_SPA: |
26720e24 | 917 | return !wc->masks.nw_src; |
6a885fd0 | 918 | case MFF_ARP_TPA: |
26720e24 | 919 | return !wc->masks.nw_dst; |
6a885fd0 | 920 | |
73f33563 BP |
921 | case MFF_TCP_SRC: |
922 | case MFF_UDP_SRC: | |
0d56eaf2 | 923 | case MFF_SCTP_SRC: |
73f33563 BP |
924 | case MFF_ICMPV4_TYPE: |
925 | case MFF_ICMPV6_TYPE: | |
26720e24 | 926 | return !wc->masks.tp_src; |
73f33563 BP |
927 | case MFF_TCP_DST: |
928 | case MFF_UDP_DST: | |
0d56eaf2 | 929 | case MFF_SCTP_DST: |
73f33563 BP |
930 | case MFF_ICMPV4_CODE: |
931 | case MFF_ICMPV6_CODE: | |
26720e24 | 932 | return !wc->masks.tp_dst; |
dc235f7f JR |
933 | case MFF_TCP_FLAGS: |
934 | return !wc->masks.tcp_flags; | |
73f33563 | 935 | |
6a885fd0 BP |
936 | case MFF_N_IDS: |
937 | default: | |
938 | NOT_REACHED(); | |
939 | } | |
940 | } | |
941 | ||
942 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
943 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
944 | * purposes, or to 0 if it is wildcarded. | |
945 | * | |
946 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
947 | * meets 'mf''s prerequisites. */ | |
948 | void | |
949 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
950 | union mf_value *mask) | |
951 | { | |
fb15feb0 | 952 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
953 | } |
954 | ||
955 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
956 | * if the mask is valid, false otherwise. */ | |
957 | bool | |
958 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
959 | { | |
960 | switch (mf->maskable) { | |
961 | case MFM_NONE: | |
962 | return (is_all_zeros((const uint8_t *) mask, mf->n_bytes) || | |
963 | is_all_ones((const uint8_t *) mask, mf->n_bytes)); | |
964 | ||
965 | case MFM_FULLY: | |
966 | return true; | |
6a885fd0 BP |
967 | } |
968 | ||
969 | NOT_REACHED(); | |
970 | } | |
971 | ||
6a885fd0 BP |
972 | static bool |
973 | is_icmpv4(const struct flow *flow) | |
974 | { | |
975 | return (flow->dl_type == htons(ETH_TYPE_IP) | |
976 | && flow->nw_proto == IPPROTO_ICMP); | |
977 | } | |
978 | ||
979 | static bool | |
980 | is_icmpv6(const struct flow *flow) | |
981 | { | |
982 | return (flow->dl_type == htons(ETH_TYPE_IPV6) | |
983 | && flow->nw_proto == IPPROTO_ICMPV6); | |
984 | } | |
985 | ||
986 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. */ | |
987 | bool | |
988 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow) | |
989 | { | |
990 | switch (mf->prereqs) { | |
991 | case MFP_NONE: | |
992 | return true; | |
993 | ||
994 | case MFP_ARP: | |
8087f5ff MM |
995 | return (flow->dl_type == htons(ETH_TYPE_ARP) || |
996 | flow->dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 BP |
997 | case MFP_IPV4: |
998 | return flow->dl_type == htons(ETH_TYPE_IP); | |
999 | case MFP_IPV6: | |
1000 | return flow->dl_type == htons(ETH_TYPE_IPV6); | |
8069b0da | 1001 | case MFP_VLAN_VID: |
5921e99a | 1002 | return (flow->vlan_tci & htons(VLAN_CFI)) != 0; |
b02475c5 SH |
1003 | case MFP_MPLS: |
1004 | return eth_type_mpls(flow->dl_type); | |
6a885fd0 BP |
1005 | case MFP_IP_ANY: |
1006 | return is_ip_any(flow); | |
1007 | ||
1008 | case MFP_TCP: | |
1009 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_TCP; | |
1010 | case MFP_UDP: | |
1011 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_UDP; | |
0d56eaf2 JS |
1012 | case MFP_SCTP: |
1013 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_SCTP; | |
268a95e0 BP |
1014 | case MFP_ICMPV4: |
1015 | return is_icmpv4(flow); | |
6a885fd0 BP |
1016 | case MFP_ICMPV6: |
1017 | return is_icmpv6(flow); | |
6a885fd0 BP |
1018 | |
1019 | case MFP_ND: | |
1020 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
1021 | && flow->tp_dst == htons(0) |
1022 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || | |
1023 | flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
1024 | case MFP_ND_SOLICIT: |
1025 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
1026 | && flow->tp_dst == htons(0) |
1027 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT))); | |
6a885fd0 BP |
1028 | case MFP_ND_ADVERT: |
1029 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
1030 | && flow->tp_dst == htons(0) |
1031 | && (flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
1032 | } |
1033 | ||
1034 | NOT_REACHED(); | |
1035 | } | |
1036 | ||
b283836c JR |
1037 | /* Set field and it's prerequisities in the mask. |
1038 | * This is only ever called for writeable 'mf's, but we do not make the | |
1039 | * distinction here. */ | |
1040 | void | |
1041 | mf_mask_field_and_prereqs(const struct mf_field *mf, struct flow *mask) | |
1042 | { | |
1043 | static const union mf_value exact_match_mask = MF_EXACT_MASK_INITIALIZER; | |
1044 | ||
1045 | mf_set_flow_value(mf, &exact_match_mask, mask); | |
1046 | ||
1047 | switch (mf->prereqs) { | |
1048 | case MFP_ND: | |
1049 | case MFP_ND_SOLICIT: | |
1050 | case MFP_ND_ADVERT: | |
1051 | mask->tp_src = OVS_BE16_MAX; | |
1052 | mask->tp_dst = OVS_BE16_MAX; | |
1053 | /* Fall through. */ | |
1054 | case MFP_TCP: | |
1055 | case MFP_UDP: | |
1056 | case MFP_SCTP: | |
1057 | case MFP_ICMPV4: | |
1058 | case MFP_ICMPV6: | |
1059 | mask->nw_proto = 0xff; | |
1060 | /* Fall through. */ | |
1061 | case MFP_ARP: | |
1062 | case MFP_IPV4: | |
1063 | case MFP_IPV6: | |
1064 | case MFP_MPLS: | |
1065 | case MFP_IP_ANY: | |
1066 | mask->dl_type = OVS_BE16_MAX; | |
1067 | break; | |
1068 | case MFP_VLAN_VID: | |
1069 | mask->vlan_tci |= htons(VLAN_CFI); | |
1070 | break; | |
1071 | case MFP_NONE: | |
1072 | break; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | ||
6a885fd0 BP |
1077 | /* Returns true if 'value' may be a valid value *as part of a masked match*, |
1078 | * false otherwise. | |
1079 | * | |
1080 | * A value is not rejected just because it is not valid for the field in | |
1081 | * question, but only if it doesn't make sense to test the bits in question at | |
1082 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
1083 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
1084 | * it is still legitimate to test just for those bits (see the documentation | |
1085 | * for NXM_OF_VLAN_TCI in nicira-ext.h). On the other hand, there is never a | |
530180fd | 1086 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
1087 | bool |
1088 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
1089 | { | |
1090 | switch (mf->id) { | |
1091 | case MFF_TUN_ID: | |
4fe3445a PS |
1092 | case MFF_TUN_SRC: |
1093 | case MFF_TUN_DST: | |
1094 | case MFF_TUN_TOS: | |
1095 | case MFF_TUN_TTL: | |
1096 | case MFF_TUN_FLAGS: | |
969fc56c | 1097 | case MFF_METADATA: |
6a885fd0 | 1098 | case MFF_IN_PORT: |
1b567fb9 | 1099 | case MFF_SKB_PRIORITY: |
1362e248 | 1100 | case MFF_PKT_MARK: |
0d7e2fe4 | 1101 | CASE_MFF_REGS: |
6a885fd0 BP |
1102 | case MFF_ETH_SRC: |
1103 | case MFF_ETH_DST: | |
1104 | case MFF_ETH_TYPE: | |
1105 | case MFF_VLAN_TCI: | |
1106 | case MFF_IPV4_SRC: | |
1107 | case MFF_IPV4_DST: | |
1108 | case MFF_IPV6_SRC: | |
1109 | case MFF_IPV6_DST: | |
1110 | case MFF_IP_PROTO: | |
a61680c6 | 1111 | case MFF_IP_TTL: |
6a885fd0 BP |
1112 | case MFF_ARP_SPA: |
1113 | case MFF_ARP_TPA: | |
1114 | case MFF_ARP_SHA: | |
1115 | case MFF_ARP_THA: | |
1116 | case MFF_TCP_SRC: | |
1117 | case MFF_TCP_DST: | |
1118 | case MFF_UDP_SRC: | |
1119 | case MFF_UDP_DST: | |
0d56eaf2 JS |
1120 | case MFF_SCTP_SRC: |
1121 | case MFF_SCTP_DST: | |
268a95e0 BP |
1122 | case MFF_ICMPV4_TYPE: |
1123 | case MFF_ICMPV4_CODE: | |
1124 | case MFF_ICMPV6_TYPE: | |
1125 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1126 | case MFF_ND_TARGET: |
1127 | case MFF_ND_SLL: | |
1128 | case MFF_ND_TLL: | |
1129 | return true; | |
1130 | ||
72333065 | 1131 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1132 | ofp_port_t port; |
72333065 JR |
1133 | return !ofputil_port_from_ofp11(value->be32, &port); |
1134 | } | |
1135 | ||
530180fd | 1136 | case MFF_IP_DSCP: |
7257b535 | 1137 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
1138 | case MFF_IP_DSCP_SHIFTED: |
1139 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
1140 | case MFF_IP_ECN: |
1141 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 1142 | case MFF_IP_FRAG: |
eadef313 | 1143 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
dc235f7f JR |
1144 | case MFF_TCP_FLAGS: |
1145 | return !(value->be16 & ~htons(0x0fff)); | |
6a885fd0 BP |
1146 | |
1147 | case MFF_ARP_OP: | |
1148 | return !(value->be16 & htons(0xff00)); | |
1149 | ||
441c57a9 | 1150 | case MFF_DL_VLAN: |
6a885fd0 | 1151 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
1152 | case MFF_VLAN_VID: |
1153 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 1154 | |
441c57a9 | 1155 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1156 | case MFF_VLAN_PCP: |
24016f5a | 1157 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 1158 | |
fa8223b7 JP |
1159 | case MFF_IPV6_LABEL: |
1160 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
1161 | ||
b02475c5 SH |
1162 | case MFF_MPLS_LABEL: |
1163 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
1164 | ||
1165 | case MFF_MPLS_TC: | |
1166 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
1167 | ||
1168 | case MFF_MPLS_BOS: | |
1169 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
1170 | ||
6a885fd0 BP |
1171 | case MFF_N_IDS: |
1172 | default: | |
1173 | NOT_REACHED(); | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
1178 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
1179 | void | |
1180 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
1181 | union mf_value *value) | |
1182 | { | |
1183 | switch (mf->id) { | |
1184 | case MFF_TUN_ID: | |
296e07ac | 1185 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 1186 | break; |
4fe3445a PS |
1187 | case MFF_TUN_SRC: |
1188 | value->be32 = flow->tunnel.ip_src; | |
1189 | break; | |
1190 | case MFF_TUN_DST: | |
1191 | value->be32 = flow->tunnel.ip_dst; | |
1192 | break; | |
1193 | case MFF_TUN_FLAGS: | |
1194 | value->be16 = htons(flow->tunnel.flags); | |
1195 | break; | |
1196 | case MFF_TUN_TTL: | |
1197 | value->u8 = flow->tunnel.ip_ttl; | |
1198 | break; | |
1199 | case MFF_TUN_TOS: | |
1200 | value->u8 = flow->tunnel.ip_tos; | |
1201 | break; | |
1202 | ||
969fc56c JS |
1203 | case MFF_METADATA: |
1204 | value->be64 = flow->metadata; | |
1205 | break; | |
6a885fd0 BP |
1206 | |
1207 | case MFF_IN_PORT: | |
4e022ec0 | 1208 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 1209 | break; |
72333065 | 1210 | case MFF_IN_PORT_OXM: |
4e022ec0 | 1211 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 JR |
1212 | break; |
1213 | ||
1b567fb9 | 1214 | case MFF_SKB_PRIORITY: |
a81f0a44 | 1215 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
1216 | break; |
1217 | ||
1362e248 JG |
1218 | case MFF_PKT_MARK: |
1219 | value->be32 = htonl(flow->pkt_mark); | |
1b567fb9 AA |
1220 | break; |
1221 | ||
0d7e2fe4 | 1222 | CASE_MFF_REGS: |
2f98b0b7 | 1223 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
1224 | break; |
1225 | ||
1226 | case MFF_ETH_SRC: | |
1227 | memcpy(value->mac, flow->dl_src, ETH_ADDR_LEN); | |
1228 | break; | |
1229 | ||
1230 | case MFF_ETH_DST: | |
1231 | memcpy(value->mac, flow->dl_dst, ETH_ADDR_LEN); | |
1232 | break; | |
1233 | ||
1234 | case MFF_ETH_TYPE: | |
1235 | value->be16 = flow->dl_type; | |
1236 | break; | |
1237 | ||
1238 | case MFF_VLAN_TCI: | |
1239 | value->be16 = flow->vlan_tci; | |
1240 | break; | |
1241 | ||
441c57a9 | 1242 | case MFF_DL_VLAN: |
6a885fd0 BP |
1243 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK); |
1244 | break; | |
cc34bc8c BP |
1245 | case MFF_VLAN_VID: |
1246 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI); | |
1247 | break; | |
6a885fd0 | 1248 | |
441c57a9 | 1249 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1250 | case MFF_VLAN_PCP: |
6a885fd0 BP |
1251 | value->u8 = vlan_tci_to_pcp(flow->vlan_tci); |
1252 | break; | |
1253 | ||
b02475c5 SH |
1254 | case MFF_MPLS_LABEL: |
1255 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse)); | |
1256 | break; | |
1257 | ||
1258 | case MFF_MPLS_TC: | |
1259 | value->u8 = mpls_lse_to_tc(flow->mpls_lse); | |
1260 | break; | |
1261 | ||
1262 | case MFF_MPLS_BOS: | |
1263 | value->u8 = mpls_lse_to_bos(flow->mpls_lse); | |
1264 | break; | |
1265 | ||
6a885fd0 BP |
1266 | case MFF_IPV4_SRC: |
1267 | value->be32 = flow->nw_src; | |
1268 | break; | |
1269 | ||
1270 | case MFF_IPV4_DST: | |
1271 | value->be32 = flow->nw_dst; | |
1272 | break; | |
1273 | ||
1274 | case MFF_IPV6_SRC: | |
1275 | value->ipv6 = flow->ipv6_src; | |
1276 | break; | |
1277 | ||
1278 | case MFF_IPV6_DST: | |
1279 | value->ipv6 = flow->ipv6_dst; | |
1280 | break; | |
1281 | ||
fa8223b7 JP |
1282 | case MFF_IPV6_LABEL: |
1283 | value->be32 = flow->ipv6_label; | |
1284 | break; | |
1285 | ||
6a885fd0 BP |
1286 | case MFF_IP_PROTO: |
1287 | value->u8 = flow->nw_proto; | |
1288 | break; | |
1289 | ||
530180fd | 1290 | case MFF_IP_DSCP: |
eadef313 | 1291 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
1292 | break; |
1293 | ||
1638b906 BP |
1294 | case MFF_IP_DSCP_SHIFTED: |
1295 | value->u8 = flow->nw_tos >> 2; | |
1296 | break; | |
1297 | ||
530180fd | 1298 | case MFF_IP_ECN: |
eadef313 | 1299 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
1300 | break; |
1301 | ||
a61680c6 JP |
1302 | case MFF_IP_TTL: |
1303 | value->u8 = flow->nw_ttl; | |
1304 | break; | |
1305 | ||
7257b535 | 1306 | case MFF_IP_FRAG: |
eadef313 | 1307 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
1308 | break; |
1309 | ||
1310 | case MFF_ARP_OP: | |
1311 | value->be16 = htons(flow->nw_proto); | |
1312 | break; | |
1313 | ||
1314 | case MFF_ARP_SPA: | |
1315 | value->be32 = flow->nw_src; | |
1316 | break; | |
1317 | ||
1318 | case MFF_ARP_TPA: | |
1319 | value->be32 = flow->nw_dst; | |
1320 | break; | |
1321 | ||
1322 | case MFF_ARP_SHA: | |
1323 | case MFF_ND_SLL: | |
1324 | memcpy(value->mac, flow->arp_sha, ETH_ADDR_LEN); | |
1325 | break; | |
1326 | ||
1327 | case MFF_ARP_THA: | |
1328 | case MFF_ND_TLL: | |
1329 | memcpy(value->mac, flow->arp_tha, ETH_ADDR_LEN); | |
1330 | break; | |
1331 | ||
1332 | case MFF_TCP_SRC: | |
6a885fd0 | 1333 | case MFF_UDP_SRC: |
0d56eaf2 | 1334 | case MFF_SCTP_SRC: |
6a885fd0 BP |
1335 | value->be16 = flow->tp_src; |
1336 | break; | |
1337 | ||
71baec06 | 1338 | case MFF_TCP_DST: |
6a885fd0 | 1339 | case MFF_UDP_DST: |
0d56eaf2 | 1340 | case MFF_SCTP_DST: |
6a885fd0 BP |
1341 | value->be16 = flow->tp_dst; |
1342 | break; | |
1343 | ||
dc235f7f JR |
1344 | case MFF_TCP_FLAGS: |
1345 | value->be16 = flow->tcp_flags; | |
1346 | break; | |
1347 | ||
268a95e0 BP |
1348 | case MFF_ICMPV4_TYPE: |
1349 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
1350 | value->u8 = ntohs(flow->tp_src); |
1351 | break; | |
1352 | ||
268a95e0 BP |
1353 | case MFF_ICMPV4_CODE: |
1354 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
1355 | value->u8 = ntohs(flow->tp_dst); |
1356 | break; | |
1357 | ||
1358 | case MFF_ND_TARGET: | |
1359 | value->ipv6 = flow->nd_target; | |
1360 | break; | |
1361 | ||
1362 | case MFF_N_IDS: | |
1363 | default: | |
1364 | NOT_REACHED(); | |
1365 | } | |
1366 | } | |
1367 | ||
81a76618 BP |
1368 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
1369 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
6a885fd0 BP |
1370 | * prerequisites. */ |
1371 | void | |
1372 | mf_set_value(const struct mf_field *mf, | |
81a76618 | 1373 | const union mf_value *value, struct match *match) |
6a885fd0 BP |
1374 | { |
1375 | switch (mf->id) { | |
1376 | case MFF_TUN_ID: | |
81a76618 | 1377 | match_set_tun_id(match, value->be64); |
6a885fd0 | 1378 | break; |
4fe3445a PS |
1379 | case MFF_TUN_SRC: |
1380 | match_set_tun_src(match, value->be32); | |
1381 | break; | |
1382 | case MFF_TUN_DST: | |
1383 | match_set_tun_dst(match, value->be32); | |
1384 | break; | |
1385 | case MFF_TUN_FLAGS: | |
1386 | match_set_tun_flags(match, ntohs(value->be16)); | |
1387 | break; | |
1388 | case MFF_TUN_TOS: | |
1389 | match_set_tun_tos(match, value->u8); | |
1390 | break; | |
1391 | case MFF_TUN_TTL: | |
1392 | match_set_tun_ttl(match, value->u8); | |
1393 | break; | |
1394 | ||
969fc56c | 1395 | case MFF_METADATA: |
81a76618 | 1396 | match_set_metadata(match, value->be64); |
969fc56c | 1397 | break; |
6a885fd0 BP |
1398 | |
1399 | case MFF_IN_PORT: | |
4e022ec0 | 1400 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
1401 | break; |
1402 | ||
72333065 | 1403 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1404 | ofp_port_t port; |
bc146369 | 1405 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
1406 | match_set_in_port(match, port); |
1407 | break; | |
1408 | } | |
1409 | ||
1b567fb9 AA |
1410 | case MFF_SKB_PRIORITY: |
1411 | match_set_skb_priority(match, ntohl(value->be32)); | |
1412 | break; | |
1413 | ||
1362e248 JG |
1414 | case MFF_PKT_MARK: |
1415 | match_set_pkt_mark(match, ntohl(value->be32)); | |
1b567fb9 AA |
1416 | break; |
1417 | ||
0d7e2fe4 | 1418 | CASE_MFF_REGS: |
81a76618 | 1419 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 1420 | break; |
6a885fd0 BP |
1421 | |
1422 | case MFF_ETH_SRC: | |
81a76618 | 1423 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
1424 | break; |
1425 | ||
1426 | case MFF_ETH_DST: | |
81a76618 | 1427 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
1428 | break; |
1429 | ||
1430 | case MFF_ETH_TYPE: | |
81a76618 | 1431 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
1432 | break; |
1433 | ||
1434 | case MFF_VLAN_TCI: | |
81a76618 | 1435 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
1436 | break; |
1437 | ||
441c57a9 | 1438 | case MFF_DL_VLAN: |
81a76618 | 1439 | match_set_dl_vlan(match, value->be16); |
6a885fd0 | 1440 | break; |
cc34bc8c | 1441 | case MFF_VLAN_VID: |
81a76618 | 1442 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 1443 | break; |
6a885fd0 | 1444 | |
441c57a9 | 1445 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1446 | case MFF_VLAN_PCP: |
81a76618 | 1447 | match_set_dl_vlan_pcp(match, value->u8); |
6a885fd0 BP |
1448 | break; |
1449 | ||
b02475c5 SH |
1450 | case MFF_MPLS_LABEL: |
1451 | match_set_mpls_label(match, value->be32); | |
1452 | break; | |
1453 | ||
1454 | case MFF_MPLS_TC: | |
1455 | match_set_mpls_tc(match, value->u8); | |
1456 | break; | |
1457 | ||
1458 | case MFF_MPLS_BOS: | |
1459 | match_set_mpls_bos(match, value->u8); | |
1460 | break; | |
1461 | ||
6a885fd0 | 1462 | case MFF_IPV4_SRC: |
81a76618 | 1463 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1464 | break; |
1465 | ||
1466 | case MFF_IPV4_DST: | |
81a76618 | 1467 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1468 | break; |
1469 | ||
1470 | case MFF_IPV6_SRC: | |
81a76618 | 1471 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
1472 | break; |
1473 | ||
1474 | case MFF_IPV6_DST: | |
81a76618 | 1475 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
1476 | break; |
1477 | ||
fa8223b7 | 1478 | case MFF_IPV6_LABEL: |
81a76618 | 1479 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
1480 | break; |
1481 | ||
6a885fd0 | 1482 | case MFF_IP_PROTO: |
81a76618 | 1483 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
1484 | break; |
1485 | ||
530180fd | 1486 | case MFF_IP_DSCP: |
81a76618 | 1487 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
1488 | break; |
1489 | ||
1638b906 BP |
1490 | case MFF_IP_DSCP_SHIFTED: |
1491 | match_set_nw_dscp(match, value->u8 << 2); | |
1492 | break; | |
1493 | ||
530180fd | 1494 | case MFF_IP_ECN: |
81a76618 | 1495 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
1496 | break; |
1497 | ||
a61680c6 | 1498 | case MFF_IP_TTL: |
81a76618 | 1499 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
1500 | break; |
1501 | ||
7257b535 | 1502 | case MFF_IP_FRAG: |
81a76618 | 1503 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
1504 | break; |
1505 | ||
6a885fd0 | 1506 | case MFF_ARP_OP: |
81a76618 | 1507 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
1508 | break; |
1509 | ||
1510 | case MFF_ARP_SPA: | |
81a76618 | 1511 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1512 | break; |
1513 | ||
1514 | case MFF_ARP_TPA: | |
81a76618 | 1515 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1516 | break; |
1517 | ||
1518 | case MFF_ARP_SHA: | |
1519 | case MFF_ND_SLL: | |
81a76618 | 1520 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
1521 | break; |
1522 | ||
1523 | case MFF_ARP_THA: | |
1524 | case MFF_ND_TLL: | |
81a76618 | 1525 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1526 | break; |
1527 | ||
1528 | case MFF_TCP_SRC: | |
6a885fd0 | 1529 | case MFF_UDP_SRC: |
0d56eaf2 | 1530 | case MFF_SCTP_SRC: |
81a76618 | 1531 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1532 | break; |
1533 | ||
71baec06 | 1534 | case MFF_TCP_DST: |
6a885fd0 | 1535 | case MFF_UDP_DST: |
0d56eaf2 | 1536 | case MFF_SCTP_DST: |
81a76618 | 1537 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1538 | break; |
1539 | ||
dc235f7f JR |
1540 | case MFF_TCP_FLAGS: |
1541 | match_set_tcp_flags(match, value->be16); | |
1542 | break; | |
1543 | ||
268a95e0 BP |
1544 | case MFF_ICMPV4_TYPE: |
1545 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1546 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1547 | break; |
1548 | ||
268a95e0 BP |
1549 | case MFF_ICMPV4_CODE: |
1550 | case MFF_ICMPV6_CODE: | |
81a76618 | 1551 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1552 | break; |
1553 | ||
1554 | case MFF_ND_TARGET: | |
81a76618 | 1555 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1556 | break; |
1557 | ||
1558 | case MFF_N_IDS: | |
1559 | default: | |
1560 | NOT_REACHED(); | |
1561 | } | |
1562 | } | |
1563 | ||
5a0a5702 GS |
1564 | /* Unwildcard 'mask' member field described by 'mf'. The caller is |
1565 | * responsible for ensuring that 'mask' meets 'mf''s prerequisites. */ | |
1566 | void | |
1567 | mf_mask_field(const struct mf_field *mf, struct flow *mask) | |
1568 | { | |
1569 | static const union mf_value exact_match_mask = MF_EXACT_MASK_INITIALIZER; | |
1570 | ||
1571 | /* For MFF_DL_VLAN, we cannot send a all 1's to flow_set_dl_vlan() | |
1572 | * as that will be considered as OFP10_VLAN_NONE. So consider it as a | |
1573 | * special case. For the rest, calling mf_set_flow_value() is good | |
1574 | * enough. */ | |
1575 | if (mf->id == MFF_DL_VLAN) { | |
1576 | flow_set_dl_vlan(mask, htons(VLAN_VID_MASK)); | |
1577 | } else { | |
1578 | mf_set_flow_value(mf, &exact_match_mask, mask); | |
1579 | } | |
1580 | } | |
1581 | ||
910fb1d8 JP |
1582 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1583 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1584 | void |
1585 | mf_set_flow_value(const struct mf_field *mf, | |
1586 | const union mf_value *value, struct flow *flow) | |
1587 | { | |
1588 | switch (mf->id) { | |
1589 | case MFF_TUN_ID: | |
296e07ac | 1590 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1591 | break; |
4fe3445a PS |
1592 | case MFF_TUN_SRC: |
1593 | flow->tunnel.ip_src = value->be32; | |
1594 | break; | |
1595 | case MFF_TUN_DST: | |
1596 | flow->tunnel.ip_dst = value->be32; | |
1597 | break; | |
1598 | case MFF_TUN_FLAGS: | |
1599 | flow->tunnel.flags = ntohs(value->be16); | |
1600 | break; | |
1601 | case MFF_TUN_TOS: | |
1602 | flow->tunnel.ip_tos = value->u8; | |
1603 | break; | |
1604 | case MFF_TUN_TTL: | |
1605 | flow->tunnel.ip_ttl = value->u8; | |
1606 | break; | |
1607 | ||
969fc56c JS |
1608 | case MFF_METADATA: |
1609 | flow->metadata = value->be64; | |
1610 | break; | |
28da1f8f BP |
1611 | |
1612 | case MFF_IN_PORT: | |
4e022ec0 | 1613 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f BP |
1614 | break; |
1615 | ||
72333065 | 1616 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1617 | ofp_port_t port; |
bc146369 | 1618 | ofputil_port_from_ofp11(value->be32, &port); |
4e022ec0 | 1619 | flow->in_port.ofp_port = port; |
72333065 JR |
1620 | break; |
1621 | } | |
1622 | ||
1b567fb9 AA |
1623 | case MFF_SKB_PRIORITY: |
1624 | flow->skb_priority = ntohl(value->be32); | |
1625 | break; | |
1626 | ||
1362e248 JG |
1627 | case MFF_PKT_MARK: |
1628 | flow->pkt_mark = ntohl(value->be32); | |
1b567fb9 AA |
1629 | break; |
1630 | ||
0d7e2fe4 | 1631 | CASE_MFF_REGS: |
28da1f8f BP |
1632 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1633 | break; | |
28da1f8f BP |
1634 | |
1635 | case MFF_ETH_SRC: | |
1636 | memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN); | |
1637 | break; | |
1638 | ||
1639 | case MFF_ETH_DST: | |
b5a36e38 | 1640 | memcpy(flow->dl_dst, value->mac, ETH_ADDR_LEN); |
28da1f8f BP |
1641 | break; |
1642 | ||
1643 | case MFF_ETH_TYPE: | |
1644 | flow->dl_type = value->be16; | |
1645 | break; | |
1646 | ||
1647 | case MFF_VLAN_TCI: | |
1648 | flow->vlan_tci = value->be16; | |
1649 | break; | |
1650 | ||
441c57a9 | 1651 | case MFF_DL_VLAN: |
fb0451d9 | 1652 | flow_set_dl_vlan(flow, value->be16); |
28da1f8f | 1653 | break; |
cc34bc8c BP |
1654 | case MFF_VLAN_VID: |
1655 | flow_set_vlan_vid(flow, value->be16); | |
1656 | break; | |
28da1f8f | 1657 | |
441c57a9 | 1658 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1659 | case MFF_VLAN_PCP: |
28da1f8f BP |
1660 | flow_set_vlan_pcp(flow, value->u8); |
1661 | break; | |
1662 | ||
b02475c5 SH |
1663 | case MFF_MPLS_LABEL: |
1664 | flow_set_mpls_label(flow, value->be32); | |
1665 | break; | |
1666 | ||
1667 | case MFF_MPLS_TC: | |
1668 | flow_set_mpls_tc(flow, value->u8); | |
1669 | break; | |
1670 | ||
1671 | case MFF_MPLS_BOS: | |
1672 | flow_set_mpls_bos(flow, value->u8); | |
1673 | break; | |
1674 | ||
28da1f8f BP |
1675 | case MFF_IPV4_SRC: |
1676 | flow->nw_src = value->be32; | |
1677 | break; | |
1678 | ||
1679 | case MFF_IPV4_DST: | |
1680 | flow->nw_dst = value->be32; | |
1681 | break; | |
1682 | ||
1683 | case MFF_IPV6_SRC: | |
1684 | flow->ipv6_src = value->ipv6; | |
1685 | break; | |
1686 | ||
1687 | case MFF_IPV6_DST: | |
1688 | flow->ipv6_dst = value->ipv6; | |
1689 | break; | |
1690 | ||
1691 | case MFF_IPV6_LABEL: | |
1692 | flow->ipv6_label = value->be32 & ~htonl(IPV6_LABEL_MASK); | |
1693 | break; | |
1694 | ||
1695 | case MFF_IP_PROTO: | |
1696 | flow->nw_proto = value->u8; | |
1697 | break; | |
1698 | ||
1699 | case MFF_IP_DSCP: | |
1700 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1701 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1702 | break; | |
1703 | ||
1638b906 BP |
1704 | case MFF_IP_DSCP_SHIFTED: |
1705 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1706 | flow->nw_tos |= value->u8 << 2; | |
1707 | break; | |
1708 | ||
28da1f8f BP |
1709 | case MFF_IP_ECN: |
1710 | flow->nw_tos &= ~IP_ECN_MASK; | |
1711 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1712 | break; | |
1713 | ||
1714 | case MFF_IP_TTL: | |
1715 | flow->nw_ttl = value->u8; | |
1716 | break; | |
1717 | ||
1718 | case MFF_IP_FRAG: | |
1719 | flow->nw_frag &= value->u8; | |
1720 | break; | |
1721 | ||
1722 | case MFF_ARP_OP: | |
1723 | flow->nw_proto = ntohs(value->be16); | |
1724 | break; | |
1725 | ||
1726 | case MFF_ARP_SPA: | |
1727 | flow->nw_src = value->be32; | |
1728 | break; | |
1729 | ||
1730 | case MFF_ARP_TPA: | |
1731 | flow->nw_dst = value->be32; | |
1732 | break; | |
1733 | ||
1734 | case MFF_ARP_SHA: | |
1735 | case MFF_ND_SLL: | |
1736 | memcpy(flow->arp_sha, value->mac, ETH_ADDR_LEN); | |
1737 | break; | |
1738 | ||
1739 | case MFF_ARP_THA: | |
1740 | case MFF_ND_TLL: | |
1741 | memcpy(flow->arp_tha, value->mac, ETH_ADDR_LEN); | |
1742 | break; | |
1743 | ||
1744 | case MFF_TCP_SRC: | |
1745 | case MFF_UDP_SRC: | |
0d56eaf2 | 1746 | case MFF_SCTP_SRC: |
28da1f8f BP |
1747 | flow->tp_src = value->be16; |
1748 | break; | |
1749 | ||
1750 | case MFF_TCP_DST: | |
1751 | case MFF_UDP_DST: | |
0d56eaf2 | 1752 | case MFF_SCTP_DST: |
28da1f8f BP |
1753 | flow->tp_dst = value->be16; |
1754 | break; | |
1755 | ||
dc235f7f JR |
1756 | case MFF_TCP_FLAGS: |
1757 | flow->tcp_flags = value->be16; | |
1758 | break; | |
1759 | ||
28da1f8f BP |
1760 | case MFF_ICMPV4_TYPE: |
1761 | case MFF_ICMPV6_TYPE: | |
1762 | flow->tp_src = htons(value->u8); | |
1763 | break; | |
1764 | ||
1765 | case MFF_ICMPV4_CODE: | |
1766 | case MFF_ICMPV6_CODE: | |
1767 | flow->tp_dst = htons(value->u8); | |
1768 | break; | |
1769 | ||
1770 | case MFF_ND_TARGET: | |
1771 | flow->nd_target = value->ipv6; | |
1772 | break; | |
1773 | ||
1774 | case MFF_N_IDS: | |
1775 | default: | |
1776 | NOT_REACHED(); | |
1777 | } | |
1778 | } | |
1779 | ||
ccbe50f8 BP |
1780 | /* Returns true if 'mf' has a zero value in 'flow', false if it is nonzero. |
1781 | * | |
1782 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1783 | * prerequisites. */ | |
1784 | bool | |
1785 | mf_is_zero(const struct mf_field *mf, const struct flow *flow) | |
1786 | { | |
1787 | union mf_value value; | |
1788 | ||
1789 | mf_get_value(mf, flow, &value); | |
1790 | return is_all_zeros((const uint8_t *) &value, mf->n_bytes); | |
1791 | } | |
1792 | ||
81a76618 | 1793 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1794 | * |
81a76618 | 1795 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
6a885fd0 BP |
1796 | * prerequisites. */ |
1797 | void | |
81a76618 | 1798 | mf_set_wild(const struct mf_field *mf, struct match *match) |
6a885fd0 BP |
1799 | { |
1800 | switch (mf->id) { | |
1801 | case MFF_TUN_ID: | |
81a76618 | 1802 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1803 | break; |
4fe3445a PS |
1804 | case MFF_TUN_SRC: |
1805 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1806 | break; | |
1807 | case MFF_TUN_DST: | |
1808 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1809 | break; | |
1810 | case MFF_TUN_FLAGS: | |
1811 | match_set_tun_flags_masked(match, 0, 0); | |
1812 | break; | |
1813 | case MFF_TUN_TOS: | |
1814 | match_set_tun_tos_masked(match, 0, 0); | |
1815 | break; | |
1816 | case MFF_TUN_TTL: | |
1817 | match_set_tun_ttl_masked(match, 0, 0); | |
1818 | break; | |
1819 | ||
969fc56c | 1820 | case MFF_METADATA: |
81a76618 | 1821 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 1822 | break; |
6a885fd0 BP |
1823 | |
1824 | case MFF_IN_PORT: | |
72333065 | 1825 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
1826 | match->flow.in_port.ofp_port = 0; |
1827 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 BP |
1828 | break; |
1829 | ||
1b567fb9 AA |
1830 | case MFF_SKB_PRIORITY: |
1831 | match->flow.skb_priority = 0; | |
1832 | match->wc.masks.skb_priority = 0; | |
1833 | break; | |
1834 | ||
1362e248 JG |
1835 | case MFF_PKT_MARK: |
1836 | match->flow.pkt_mark = 0; | |
1837 | match->wc.masks.pkt_mark = 0; | |
1b567fb9 AA |
1838 | break; |
1839 | ||
0d7e2fe4 | 1840 | CASE_MFF_REGS: |
81a76618 | 1841 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 1842 | break; |
6a885fd0 BP |
1843 | |
1844 | case MFF_ETH_SRC: | |
81a76618 BP |
1845 | memset(match->flow.dl_src, 0, ETH_ADDR_LEN); |
1846 | memset(match->wc.masks.dl_src, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1847 | break; |
1848 | ||
1849 | case MFF_ETH_DST: | |
81a76618 BP |
1850 | memset(match->flow.dl_dst, 0, ETH_ADDR_LEN); |
1851 | memset(match->wc.masks.dl_dst, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1852 | break; |
1853 | ||
1854 | case MFF_ETH_TYPE: | |
81a76618 BP |
1855 | match->flow.dl_type = htons(0); |
1856 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
1857 | break; |
1858 | ||
1859 | case MFF_VLAN_TCI: | |
81a76618 | 1860 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
1861 | break; |
1862 | ||
441c57a9 | 1863 | case MFF_DL_VLAN: |
cc34bc8c | 1864 | case MFF_VLAN_VID: |
81a76618 | 1865 | match_set_any_vid(match); |
6a885fd0 BP |
1866 | break; |
1867 | ||
441c57a9 | 1868 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1869 | case MFF_VLAN_PCP: |
81a76618 | 1870 | match_set_any_pcp(match); |
6a885fd0 BP |
1871 | break; |
1872 | ||
b02475c5 SH |
1873 | case MFF_MPLS_LABEL: |
1874 | match_set_any_mpls_label(match); | |
1875 | break; | |
1876 | ||
1877 | case MFF_MPLS_TC: | |
1878 | match_set_any_mpls_tc(match); | |
1879 | break; | |
1880 | ||
1881 | case MFF_MPLS_BOS: | |
1882 | match_set_any_mpls_bos(match); | |
1883 | break; | |
1884 | ||
6a885fd0 BP |
1885 | case MFF_IPV4_SRC: |
1886 | case MFF_ARP_SPA: | |
81a76618 | 1887 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1888 | break; |
1889 | ||
1890 | case MFF_IPV4_DST: | |
1891 | case MFF_ARP_TPA: | |
81a76618 | 1892 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1893 | break; |
1894 | ||
1895 | case MFF_IPV6_SRC: | |
81a76618 BP |
1896 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
1897 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
1898 | break; |
1899 | ||
1900 | case MFF_IPV6_DST: | |
81a76618 BP |
1901 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
1902 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
1903 | break; |
1904 | ||
fa8223b7 | 1905 | case MFF_IPV6_LABEL: |
81a76618 BP |
1906 | match->wc.masks.ipv6_label = htonl(0); |
1907 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
1908 | break; |
1909 | ||
6a885fd0 | 1910 | case MFF_IP_PROTO: |
81a76618 BP |
1911 | match->wc.masks.nw_proto = 0; |
1912 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1913 | break; |
1914 | ||
530180fd | 1915 | case MFF_IP_DSCP: |
1638b906 | 1916 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
1917 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
1918 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
1919 | break; |
1920 | ||
530180fd | 1921 | case MFF_IP_ECN: |
81a76618 BP |
1922 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
1923 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
1924 | break; |
1925 | ||
a61680c6 | 1926 | case MFF_IP_TTL: |
81a76618 BP |
1927 | match->wc.masks.nw_ttl = 0; |
1928 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
1929 | break; |
1930 | ||
7257b535 | 1931 | case MFF_IP_FRAG: |
81a76618 BP |
1932 | match->wc.masks.nw_frag |= FLOW_NW_FRAG_MASK; |
1933 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; | |
6a885fd0 BP |
1934 | break; |
1935 | ||
1936 | case MFF_ARP_OP: | |
81a76618 BP |
1937 | match->wc.masks.nw_proto = 0; |
1938 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1939 | break; |
1940 | ||
1941 | case MFF_ARP_SHA: | |
1942 | case MFF_ND_SLL: | |
81a76618 BP |
1943 | memset(match->flow.arp_sha, 0, ETH_ADDR_LEN); |
1944 | memset(match->wc.masks.arp_sha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1945 | break; |
1946 | ||
1947 | case MFF_ARP_THA: | |
1948 | case MFF_ND_TLL: | |
81a76618 BP |
1949 | memset(match->flow.arp_tha, 0, ETH_ADDR_LEN); |
1950 | memset(match->wc.masks.arp_tha, 0, ETH_ADDR_LEN); | |
6a885fd0 BP |
1951 | break; |
1952 | ||
1953 | case MFF_TCP_SRC: | |
1954 | case MFF_UDP_SRC: | |
0d56eaf2 | 1955 | case MFF_SCTP_SRC: |
268a95e0 BP |
1956 | case MFF_ICMPV4_TYPE: |
1957 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
1958 | match->wc.masks.tp_src = htons(0); |
1959 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
1960 | break; |
1961 | ||
1962 | case MFF_TCP_DST: | |
1963 | case MFF_UDP_DST: | |
0d56eaf2 | 1964 | case MFF_SCTP_DST: |
268a95e0 BP |
1965 | case MFF_ICMPV4_CODE: |
1966 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
1967 | match->wc.masks.tp_dst = htons(0); |
1968 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
1969 | break; |
1970 | ||
dc235f7f JR |
1971 | case MFF_TCP_FLAGS: |
1972 | match->wc.masks.tcp_flags = htons(0); | |
1973 | match->flow.tcp_flags = htons(0); | |
1974 | break; | |
1975 | ||
6a885fd0 | 1976 | case MFF_ND_TARGET: |
81a76618 BP |
1977 | memset(&match->wc.masks.nd_target, 0, |
1978 | sizeof match->wc.masks.nd_target); | |
1979 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
1980 | break; |
1981 | ||
1982 | case MFF_N_IDS: | |
1983 | default: | |
1984 | NOT_REACHED(); | |
1985 | } | |
1986 | } | |
1987 | ||
81a76618 | 1988 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
1989 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
1990 | * with a 1-bit indicating that the corresponding value bit must match and a | |
1991 | * 0-bit indicating a don't-care. | |
1992 | * | |
1993 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
1994 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
1995 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
1996 | * |
1997 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
81a76618 | 1998 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. */ |
db0b6c29 | 1999 | enum ofputil_protocol |
6a885fd0 BP |
2000 | mf_set(const struct mf_field *mf, |
2001 | const union mf_value *value, const union mf_value *mask, | |
81a76618 | 2002 | struct match *match) |
6a885fd0 BP |
2003 | { |
2004 | if (!mask || is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
81a76618 | 2005 | mf_set_value(mf, value, match); |
db0b6c29 | 2006 | return mf->usable_protocols; |
6a885fd0 | 2007 | } else if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { |
81a76618 | 2008 | mf_set_wild(mf, match); |
db0b6c29 | 2009 | return OFPUTIL_P_ANY; |
6a885fd0 BP |
2010 | } |
2011 | ||
2012 | switch (mf->id) { | |
2013 | case MFF_IN_PORT: | |
72333065 | 2014 | case MFF_IN_PORT_OXM: |
1b567fb9 | 2015 | case MFF_SKB_PRIORITY: |
6a885fd0 | 2016 | case MFF_ETH_TYPE: |
441c57a9 BP |
2017 | case MFF_DL_VLAN: |
2018 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 2019 | case MFF_VLAN_PCP: |
b02475c5 SH |
2020 | case MFF_MPLS_LABEL: |
2021 | case MFF_MPLS_TC: | |
2022 | case MFF_MPLS_BOS: | |
6a885fd0 | 2023 | case MFF_IP_PROTO: |
a61680c6 | 2024 | case MFF_IP_TTL: |
530180fd | 2025 | case MFF_IP_DSCP: |
1638b906 | 2026 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 2027 | case MFF_IP_ECN: |
6a885fd0 | 2028 | case MFF_ARP_OP: |
268a95e0 BP |
2029 | case MFF_ICMPV4_TYPE: |
2030 | case MFF_ICMPV4_CODE: | |
2031 | case MFF_ICMPV6_TYPE: | |
2032 | case MFF_ICMPV6_CODE: | |
af69bf19 | 2033 | return OFPUTIL_P_NONE; |
6a885fd0 BP |
2034 | |
2035 | case MFF_TUN_ID: | |
81a76618 | 2036 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 2037 | break; |
4fe3445a PS |
2038 | case MFF_TUN_SRC: |
2039 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
2040 | break; | |
2041 | case MFF_TUN_DST: | |
2042 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
2043 | break; | |
2044 | case MFF_TUN_FLAGS: | |
2045 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
2046 | break; | |
2047 | case MFF_TUN_TTL: | |
2048 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
2049 | break; | |
2050 | case MFF_TUN_TOS: | |
2051 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
2052 | break; | |
2053 | ||
969fc56c | 2054 | case MFF_METADATA: |
81a76618 | 2055 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 2056 | break; |
6a885fd0 | 2057 | |
0d7e2fe4 | 2058 | CASE_MFF_REGS: |
81a76618 BP |
2059 | match_set_reg_masked(match, mf->id - MFF_REG0, |
2060 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 | 2061 | break; |
ac923e91 JG |
2062 | |
2063 | case MFF_PKT_MARK: | |
2064 | match_set_pkt_mark_masked(match, ntohl(value->be32), | |
2065 | ntohl(mask->be32)); | |
2066 | break; | |
6a885fd0 BP |
2067 | |
2068 | case MFF_ETH_DST: | |
81a76618 | 2069 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
2070 | break; |
2071 | ||
2072 | case MFF_ETH_SRC: | |
81a76618 | 2073 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
2074 | break; |
2075 | ||
e878338b SH |
2076 | case MFF_ARP_SHA: |
2077 | case MFF_ND_SLL: | |
81a76618 | 2078 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
2079 | break; |
2080 | ||
2081 | case MFF_ARP_THA: | |
2082 | case MFF_ND_TLL: | |
81a76618 | 2083 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
2084 | break; |
2085 | ||
6a885fd0 | 2086 | case MFF_VLAN_TCI: |
81a76618 | 2087 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
2088 | break; |
2089 | ||
cc34bc8c | 2090 | case MFF_VLAN_VID: |
81a76618 | 2091 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
2092 | break; |
2093 | ||
6a885fd0 | 2094 | case MFF_IPV4_SRC: |
81a76618 | 2095 | match_set_nw_src_masked(match, value->be32, mask->be32); |
db0b6c29 | 2096 | goto cidr_check; |
6a885fd0 BP |
2097 | |
2098 | case MFF_IPV4_DST: | |
81a76618 | 2099 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
db0b6c29 | 2100 | goto cidr_check; |
6a885fd0 BP |
2101 | |
2102 | case MFF_IPV6_SRC: | |
81a76618 | 2103 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
2104 | break; |
2105 | ||
2106 | case MFF_IPV6_DST: | |
81a76618 | 2107 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
2108 | break; |
2109 | ||
32455024 SH |
2110 | case MFF_IPV6_LABEL: |
2111 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
81a76618 | 2112 | mf_set_value(mf, value, match); |
32455024 | 2113 | } else { |
81a76618 | 2114 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
2115 | } |
2116 | break; | |
2117 | ||
47284b1f | 2118 | case MFF_ND_TARGET: |
81a76618 | 2119 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
2120 | break; |
2121 | ||
7257b535 | 2122 | case MFF_IP_FRAG: |
81a76618 | 2123 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
2124 | break; |
2125 | ||
6a885fd0 | 2126 | case MFF_ARP_SPA: |
81a76618 | 2127 | match_set_nw_src_masked(match, value->be32, mask->be32); |
db0b6c29 | 2128 | goto cidr_check; |
6a885fd0 BP |
2129 | |
2130 | case MFF_ARP_TPA: | |
81a76618 | 2131 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
db0b6c29 | 2132 | goto cidr_check; |
6a885fd0 | 2133 | |
73f33563 BP |
2134 | case MFF_TCP_SRC: |
2135 | case MFF_UDP_SRC: | |
0d56eaf2 | 2136 | case MFF_SCTP_SRC: |
81a76618 | 2137 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
2138 | break; |
2139 | ||
2140 | case MFF_TCP_DST: | |
2141 | case MFF_UDP_DST: | |
0d56eaf2 | 2142 | case MFF_SCTP_DST: |
81a76618 | 2143 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
2144 | break; |
2145 | ||
dc235f7f JR |
2146 | case MFF_TCP_FLAGS: |
2147 | match_set_tcp_flags_masked(match, value->be16, mask->be16); | |
2148 | break; | |
2149 | ||
6a885fd0 BP |
2150 | case MFF_N_IDS: |
2151 | default: | |
2152 | NOT_REACHED(); | |
2153 | } | |
db0b6c29 JR |
2154 | |
2155 | return mf->usable_protocols_bitwise; | |
2156 | ||
2157 | cidr_check: | |
2158 | return ip_is_cidr(mask->be32) ? mf->usable_protocols : | |
2159 | mf->usable_protocols_bitwise; | |
6a885fd0 BP |
2160 | } |
2161 | ||
816fd533 BP |
2162 | static enum ofperr |
2163 | mf_check__(const struct mf_subfield *sf, const struct flow *flow, | |
2164 | const char *type) | |
6a885fd0 | 2165 | { |
816fd533 BP |
2166 | if (!sf->field) { |
2167 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
9e404d1e | 2168 | return OFPERR_OFPBAC_BAD_SET_TYPE; |
816fd533 BP |
2169 | } else if (!sf->n_bits) { |
2170 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
9e404d1e | 2171 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
2172 | } else if (sf->ofs >= sf->field->n_bits) { |
2173 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
2174 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 2175 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
2176 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { |
2177 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
2178 | "of %s field %s", sf->ofs, sf->n_bits, | |
2179 | sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 2180 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
2181 | } else if (flow && !mf_are_prereqs_ok(sf->field, flow)) { |
2182 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", | |
2183 | type, sf->field->name); | |
9e404d1e | 2184 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; |
6a885fd0 | 2185 | } else { |
816fd533 BP |
2186 | return 0; |
2187 | } | |
816fd533 | 2188 | } |
6a885fd0 | 2189 | |
816fd533 BP |
2190 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
2191 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
2192 | * ofp_mkerr()). */ | |
2193 | enum ofperr | |
2194 | mf_check_src(const struct mf_subfield *sf, const struct flow *flow) | |
2195 | { | |
2196 | return mf_check__(sf, flow, "source"); | |
2197 | } | |
6a885fd0 | 2198 | |
816fd533 BP |
2199 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
2200 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
2201 | * ofp_mkerr()). */ | |
2202 | enum ofperr | |
2203 | mf_check_dst(const struct mf_subfield *sf, const struct flow *flow) | |
2204 | { | |
2205 | int error = mf_check__(sf, flow, "destination"); | |
2206 | if (!error && !sf->field->writable) { | |
2207 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
2208 | sf->field->name); | |
9e404d1e | 2209 | return OFPERR_OFPBAC_BAD_SET_ARGUMENT; |
6a885fd0 | 2210 | } |
816fd533 | 2211 | return error; |
6a885fd0 BP |
2212 | } |
2213 | ||
81a76618 | 2214 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
2215 | * 'value' and 'mask', respectively. */ |
2216 | void | |
81a76618 | 2217 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
2218 | union mf_value *value, union mf_value *mask) |
2219 | { | |
81a76618 BP |
2220 | mf_get_value(mf, &match->flow, value); |
2221 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
2222 | } |
2223 | ||
2224 | /* Assigns a random value for field 'mf' to 'value'. */ | |
2225 | void | |
2226 | mf_random_value(const struct mf_field *mf, union mf_value *value) | |
2227 | { | |
2228 | random_bytes(value, mf->n_bytes); | |
2229 | ||
2230 | switch (mf->id) { | |
2231 | case MFF_TUN_ID: | |
4fe3445a PS |
2232 | case MFF_TUN_SRC: |
2233 | case MFF_TUN_DST: | |
2234 | case MFF_TUN_TOS: | |
2235 | case MFF_TUN_TTL: | |
2236 | case MFF_TUN_FLAGS: | |
969fc56c | 2237 | case MFF_METADATA: |
6a885fd0 | 2238 | case MFF_IN_PORT: |
1362e248 | 2239 | case MFF_PKT_MARK: |
1b567fb9 | 2240 | case MFF_SKB_PRIORITY: |
0d7e2fe4 | 2241 | CASE_MFF_REGS: |
6a885fd0 BP |
2242 | case MFF_ETH_SRC: |
2243 | case MFF_ETH_DST: | |
2244 | case MFF_ETH_TYPE: | |
2245 | case MFF_VLAN_TCI: | |
2246 | case MFF_IPV4_SRC: | |
2247 | case MFF_IPV4_DST: | |
2248 | case MFF_IPV6_SRC: | |
2249 | case MFF_IPV6_DST: | |
2250 | case MFF_IP_PROTO: | |
a61680c6 | 2251 | case MFF_IP_TTL: |
6a885fd0 BP |
2252 | case MFF_ARP_SPA: |
2253 | case MFF_ARP_TPA: | |
2254 | case MFF_ARP_SHA: | |
2255 | case MFF_ARP_THA: | |
2256 | case MFF_TCP_SRC: | |
2257 | case MFF_TCP_DST: | |
2258 | case MFF_UDP_SRC: | |
2259 | case MFF_UDP_DST: | |
0d56eaf2 JS |
2260 | case MFF_SCTP_SRC: |
2261 | case MFF_SCTP_DST: | |
268a95e0 BP |
2262 | case MFF_ICMPV4_TYPE: |
2263 | case MFF_ICMPV4_CODE: | |
2264 | case MFF_ICMPV6_TYPE: | |
2265 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
2266 | case MFF_ND_TARGET: |
2267 | case MFF_ND_SLL: | |
2268 | case MFF_ND_TLL: | |
2269 | break; | |
2270 | ||
dc235f7f JR |
2271 | case MFF_TCP_FLAGS: |
2272 | value->be16 &= htons(0x0fff); | |
2273 | break; | |
2274 | ||
72333065 | 2275 | case MFF_IN_PORT_OXM: |
4e022ec0 | 2276 | value->be32 = ofputil_port_to_ofp11(u16_to_ofp(ntohs(value->be16))); |
72333065 JR |
2277 | break; |
2278 | ||
fa8223b7 | 2279 | case MFF_IPV6_LABEL: |
ec45f343 | 2280 | value->be32 &= htonl(IPV6_LABEL_MASK); |
fa8223b7 JP |
2281 | break; |
2282 | ||
530180fd JP |
2283 | case MFF_IP_DSCP: |
2284 | value->u8 &= IP_DSCP_MASK; | |
2285 | break; | |
2286 | ||
1638b906 BP |
2287 | case MFF_IP_DSCP_SHIFTED: |
2288 | value->u8 &= IP_DSCP_MASK >> 2; | |
2289 | break; | |
2290 | ||
530180fd JP |
2291 | case MFF_IP_ECN: |
2292 | value->u8 &= IP_ECN_MASK; | |
6a885fd0 BP |
2293 | break; |
2294 | ||
7257b535 | 2295 | case MFF_IP_FRAG: |
eadef313 | 2296 | value->u8 &= FLOW_NW_FRAG_MASK; |
7257b535 BP |
2297 | break; |
2298 | ||
6a885fd0 BP |
2299 | case MFF_ARP_OP: |
2300 | value->be16 &= htons(0xff); | |
2301 | break; | |
2302 | ||
441c57a9 | 2303 | case MFF_DL_VLAN: |
6a885fd0 BP |
2304 | value->be16 &= htons(VLAN_VID_MASK); |
2305 | break; | |
cc34bc8c BP |
2306 | case MFF_VLAN_VID: |
2307 | value->be16 &= htons(VLAN_VID_MASK | VLAN_CFI); | |
2308 | break; | |
6a885fd0 | 2309 | |
441c57a9 | 2310 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 2311 | case MFF_VLAN_PCP: |
6a885fd0 BP |
2312 | value->u8 &= 0x07; |
2313 | break; | |
2314 | ||
b02475c5 SH |
2315 | case MFF_MPLS_LABEL: |
2316 | value->be32 &= htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT); | |
2317 | break; | |
2318 | ||
2319 | case MFF_MPLS_TC: | |
2320 | value->u8 &= MPLS_TC_MASK >> MPLS_TC_SHIFT; | |
2321 | break; | |
2322 | ||
2323 | case MFF_MPLS_BOS: | |
2324 | value->u8 &= MPLS_BOS_MASK >> MPLS_BOS_SHIFT; | |
2325 | break; | |
2326 | ||
6a885fd0 BP |
2327 | case MFF_N_IDS: |
2328 | default: | |
2329 | NOT_REACHED(); | |
2330 | } | |
2331 | } | |
2332 | ||
2333 | static char * | |
2334 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2335 | uint8_t *valuep, uint8_t *maskp) | |
2336 | { | |
2337 | unsigned long long int integer, mask; | |
2338 | char *tail; | |
2339 | int i; | |
2340 | ||
2341 | errno = 0; | |
2342 | integer = strtoull(s, &tail, 0); | |
2343 | if (errno || (*tail != '\0' && *tail != '/')) { | |
2344 | goto syntax_error; | |
2345 | } | |
2346 | ||
2347 | if (*tail == '/') { | |
2348 | mask = strtoull(tail + 1, &tail, 0); | |
2349 | if (errno || *tail != '\0') { | |
2350 | goto syntax_error; | |
2351 | } | |
2352 | } else { | |
2353 | mask = ULLONG_MAX; | |
2354 | } | |
2355 | ||
2356 | for (i = mf->n_bytes - 1; i >= 0; i--) { | |
2357 | valuep[i] = integer; | |
2358 | maskp[i] = mask; | |
2359 | integer >>= 8; | |
2360 | mask >>= 8; | |
2361 | } | |
2362 | if (integer) { | |
2363 | return xasprintf("%s: value too large for %u-byte field %s", | |
2364 | s, mf->n_bytes, mf->name); | |
2365 | } | |
2366 | return NULL; | |
2367 | ||
2368 | syntax_error: | |
2369 | return xasprintf("%s: bad syntax for %s", s, mf->name); | |
2370 | } | |
2371 | ||
2372 | static char * | |
2373 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
2374 | uint8_t mac[ETH_ADDR_LEN], | |
2375 | uint8_t mask[ETH_ADDR_LEN]) | |
2376 | { | |
279fb135 | 2377 | int n; |
6a885fd0 | 2378 | |
279fb135 | 2379 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 | 2380 | |
279fb135 BP |
2381 | n = -1; |
2382 | if (sscanf(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(mac), &n) > 0 | |
2383 | && n == strlen(s)) { | |
6a885fd0 BP |
2384 | memset(mask, 0xff, ETH_ADDR_LEN); |
2385 | return NULL; | |
279fb135 | 2386 | } |
6a885fd0 | 2387 | |
279fb135 BP |
2388 | n = -1; |
2389 | if (sscanf(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"%n", | |
2390 | ETH_ADDR_SCAN_ARGS(mac), ETH_ADDR_SCAN_ARGS(mask), &n) > 0 | |
2391 | && n == strlen(s)) { | |
2392 | return NULL; | |
6a885fd0 | 2393 | } |
279fb135 BP |
2394 | |
2395 | return xasprintf("%s: invalid Ethernet address", s); | |
6a885fd0 BP |
2396 | } |
2397 | ||
2398 | static char * | |
2399 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2400 | ovs_be32 *ip, ovs_be32 *mask) | |
2401 | { | |
2402 | int prefix; | |
2403 | ||
cb22974d | 2404 | ovs_assert(mf->n_bytes == sizeof *ip); |
6a885fd0 BP |
2405 | |
2406 | if (sscanf(s, IP_SCAN_FMT"/"IP_SCAN_FMT, | |
2407 | IP_SCAN_ARGS(ip), IP_SCAN_ARGS(mask)) == IP_SCAN_COUNT * 2) { | |
2408 | /* OK. */ | |
2409 | } else if (sscanf(s, IP_SCAN_FMT"/%d", | |
2410 | IP_SCAN_ARGS(ip), &prefix) == IP_SCAN_COUNT + 1) { | |
2411 | if (prefix <= 0 || prefix > 32) { | |
2412 | return xasprintf("%s: network prefix bits not between 1 and " | |
2413 | "32", s); | |
2414 | } else if (prefix == 32) { | |
b8266395 | 2415 | *mask = OVS_BE32_MAX; |
6a885fd0 BP |
2416 | } else { |
2417 | *mask = htonl(((1u << prefix) - 1) << (32 - prefix)); | |
2418 | } | |
2419 | } else if (sscanf(s, IP_SCAN_FMT, IP_SCAN_ARGS(ip)) == IP_SCAN_COUNT) { | |
b8266395 | 2420 | *mask = OVS_BE32_MAX; |
6a885fd0 BP |
2421 | } else { |
2422 | return xasprintf("%s: invalid IP address", s); | |
2423 | } | |
2424 | return NULL; | |
2425 | } | |
2426 | ||
2427 | static char * | |
2428 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
2429 | struct in6_addr *value, struct in6_addr *mask) | |
2430 | { | |
2431 | char *str = xstrdup(s); | |
2432 | char *save_ptr = NULL; | |
2433 | const char *name, *netmask; | |
2434 | int retval; | |
2435 | ||
cb22974d | 2436 | ovs_assert(mf->n_bytes == sizeof *value); |
6a885fd0 BP |
2437 | |
2438 | name = strtok_r(str, "/", &save_ptr); | |
2439 | retval = name ? lookup_ipv6(name, value) : EINVAL; | |
2440 | if (retval) { | |
2441 | char *err; | |
2442 | ||
2443 | err = xasprintf("%s: could not convert to IPv6 address", str); | |
2444 | free(str); | |
2445 | ||
2446 | return err; | |
2447 | } | |
2448 | ||
2449 | netmask = strtok_r(NULL, "/", &save_ptr); | |
2450 | if (netmask) { | |
ff0b06ee BP |
2451 | if (inet_pton(AF_INET6, netmask, mask) != 1) { |
2452 | int prefix = atoi(netmask); | |
2453 | if (prefix <= 0 || prefix > 128) { | |
2454 | free(str); | |
2455 | return xasprintf("%s: prefix bits not between 1 and 128", s); | |
2456 | } else { | |
2457 | *mask = ipv6_create_mask(prefix); | |
2458 | } | |
6a885fd0 BP |
2459 | } |
2460 | } else { | |
2461 | *mask = in6addr_exact; | |
2462 | } | |
2463 | free(str); | |
2464 | ||
2465 | return NULL; | |
2466 | } | |
2467 | ||
2468 | static char * | |
2469 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
2470 | ovs_be16 *valuep, ovs_be16 *maskp) | |
2471 | { | |
4e022ec0 | 2472 | ofp_port_t port; |
6a885fd0 | 2473 | |
cb22974d | 2474 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 JR |
2475 | |
2476 | if (ofputil_port_from_string(s, &port)) { | |
4e022ec0 | 2477 | *valuep = htons(ofp_to_u16(port)); |
b8266395 | 2478 | *maskp = OVS_BE16_MAX; |
6a885fd0 | 2479 | return NULL; |
6a885fd0 | 2480 | } |
33ab38d9 | 2481 | return xasprintf("%s: port value out of range for %s", s, mf->name); |
6a885fd0 BP |
2482 | } |
2483 | ||
72333065 JR |
2484 | static char * |
2485 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
2486 | ovs_be32 *valuep, ovs_be32 *maskp) | |
2487 | { | |
4e022ec0 | 2488 | ofp_port_t port; |
72333065 JR |
2489 | |
2490 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2491 | if (ofputil_port_from_string(s, &port)) { | |
2492 | *valuep = ofputil_port_to_ofp11(port); | |
b8266395 | 2493 | *maskp = OVS_BE32_MAX; |
72333065 JR |
2494 | return NULL; |
2495 | } | |
2496 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2497 | } | |
2498 | ||
7257b535 BP |
2499 | struct frag_handling { |
2500 | const char *name; | |
2501 | uint8_t mask; | |
2502 | uint8_t value; | |
2503 | }; | |
2504 | ||
2505 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2506 | #define A FLOW_NW_FRAG_ANY |
2507 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2508 | /* name mask value */ |
2509 | ||
2510 | { "no", A|L, 0 }, | |
2511 | { "first", A|L, A }, | |
2512 | { "later", A|L, A|L }, | |
2513 | ||
2514 | { "no", A, 0 }, | |
2515 | { "yes", A, A }, | |
2516 | ||
2517 | { "not_later", L, 0 }, | |
2518 | { "later", L, L }, | |
2519 | #undef A | |
2520 | #undef L | |
2521 | }; | |
2522 | ||
2523 | static char * | |
2524 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2525 | { | |
2526 | const struct frag_handling *h; | |
2527 | ||
2528 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2529 | if (!strcasecmp(s, h->name)) { | |
2530 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2531 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2532 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2533 | *valuep = h->value; |
2534 | return NULL; | |
2535 | } | |
2536 | } | |
2537 | ||
2538 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
2539 | "\"yes\", \"first\", \"later\", \"not_first\"", s); | |
2540 | } | |
2541 | ||
4fe3445a PS |
2542 | static int |
2543 | parse_flow_tun_flags(const char *s_, const char *(*bit_to_string)(uint32_t), | |
2544 | ovs_be16 *res) | |
2545 | { | |
2546 | uint32_t result = 0; | |
2547 | char *save_ptr = NULL; | |
2548 | char *name; | |
2549 | int rc = 0; | |
2550 | char *s = xstrdup(s_); | |
2551 | ||
2552 | for (name = strtok_r((char *)s, " |", &save_ptr); name; | |
2553 | name = strtok_r(NULL, " |", &save_ptr)) { | |
2554 | int name_len; | |
2555 | unsigned long long int flags; | |
2556 | uint32_t bit; | |
2557 | int n0; | |
2558 | ||
2559 | if (sscanf(name, "%lli%n", &flags, &n0) > 0 && n0 > 0) { | |
2560 | result |= flags; | |
2561 | continue; | |
2562 | } | |
2563 | name_len = strlen(name); | |
2564 | for (bit = 1; bit; bit <<= 1) { | |
2565 | const char *fname = bit_to_string(bit); | |
2566 | size_t len; | |
2567 | ||
2568 | if (!fname) { | |
2569 | continue; | |
2570 | } | |
2571 | ||
2572 | len = strlen(fname); | |
2573 | if (len != name_len) { | |
2574 | continue; | |
2575 | } | |
2576 | if (!strncmp(name, fname, len)) { | |
2577 | result |= bit; | |
2578 | break; | |
2579 | } | |
2580 | } | |
2581 | ||
2582 | if (!bit) { | |
2583 | rc = -ENOENT; | |
2584 | goto out; | |
2585 | } | |
2586 | } | |
2587 | ||
2588 | *res = htons(result); | |
2589 | out: | |
2590 | free(s); | |
2591 | return rc; | |
2592 | } | |
2593 | ||
2594 | static char * | |
b0aa8146 | 2595 | mf_from_tun_flags_string(const char *s, ovs_be16 *valuep, ovs_be16 *maskp) |
4fe3445a PS |
2596 | { |
2597 | if (!parse_flow_tun_flags(s, flow_tun_flag_to_string, valuep)) { | |
b8266395 | 2598 | *maskp = OVS_BE16_MAX; |
4fe3445a PS |
2599 | return NULL; |
2600 | } | |
2601 | ||
2602 | return xasprintf("%s: unknown tunnel flags (valid flags are \"df\", " | |
2603 | "\"csum\", \"key\"", s); | |
2604 | } | |
2605 | ||
6a885fd0 BP |
2606 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2607 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2608 | char * | |
2609 | mf_parse(const struct mf_field *mf, const char *s, | |
2610 | union mf_value *value, union mf_value *mask) | |
2611 | { | |
3634dff8 BP |
2612 | char *error; |
2613 | ||
bedde04c | 2614 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2615 | memset(value, 0, mf->n_bytes); |
2616 | memset(mask, 0, mf->n_bytes); | |
2617 | return NULL; | |
2618 | } | |
2619 | ||
2620 | switch (mf->string) { | |
2621 | case MFS_DECIMAL: | |
2622 | case MFS_HEXADECIMAL: | |
3634dff8 BP |
2623 | error = mf_from_integer_string(mf, s, |
2624 | (uint8_t *) value, (uint8_t *) mask); | |
2625 | break; | |
6a885fd0 BP |
2626 | |
2627 | case MFS_ETHERNET: | |
3634dff8 BP |
2628 | error = mf_from_ethernet_string(mf, s, value->mac, mask->mac); |
2629 | break; | |
6a885fd0 BP |
2630 | |
2631 | case MFS_IPV4: | |
3634dff8 BP |
2632 | error = mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); |
2633 | break; | |
6a885fd0 BP |
2634 | |
2635 | case MFS_IPV6: | |
3634dff8 BP |
2636 | error = mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); |
2637 | break; | |
6a885fd0 BP |
2638 | |
2639 | case MFS_OFP_PORT: | |
3634dff8 BP |
2640 | error = mf_from_ofp_port_string(mf, s, &value->be16, &mask->be16); |
2641 | break; | |
7257b535 | 2642 | |
72333065 | 2643 | case MFS_OFP_PORT_OXM: |
3634dff8 BP |
2644 | error = mf_from_ofp_port_string32(mf, s, &value->be32, &mask->be32); |
2645 | break; | |
72333065 | 2646 | |
7257b535 | 2647 | case MFS_FRAG: |
3634dff8 BP |
2648 | error = mf_from_frag_string(s, &value->u8, &mask->u8); |
2649 | break; | |
4fe3445a PS |
2650 | |
2651 | case MFS_TNL_FLAGS: | |
cb22974d | 2652 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
3634dff8 BP |
2653 | error = mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
2654 | break; | |
2655 | ||
2656 | default: | |
2657 | NOT_REACHED(); | |
6a885fd0 | 2658 | } |
3634dff8 BP |
2659 | |
2660 | if (!error && !mf_is_mask_valid(mf, mask)) { | |
2661 | error = xasprintf("%s: invalid mask for field %s", s, mf->name); | |
2662 | } | |
2663 | return error; | |
6a885fd0 BP |
2664 | } |
2665 | ||
2666 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
2667 | * successful, otherwise a malloc()'d string describing the error. */ | |
2668 | char * | |
2669 | mf_parse_value(const struct mf_field *mf, const char *s, union mf_value *value) | |
2670 | { | |
2671 | union mf_value mask; | |
2672 | char *error; | |
2673 | ||
2674 | error = mf_parse(mf, s, value, &mask); | |
2675 | if (error) { | |
2676 | return error; | |
2677 | } | |
2678 | ||
2679 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
2680 | return xasprintf("%s: wildcards not allowed here", s); | |
2681 | } | |
2682 | return NULL; | |
2683 | } | |
2684 | ||
2685 | static void | |
2686 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
2687 | const uint8_t *maskp, struct ds *s) | |
2688 | { | |
2689 | unsigned long long int integer; | |
2690 | int i; | |
2691 | ||
cb22974d | 2692 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 BP |
2693 | |
2694 | integer = 0; | |
2695 | for (i = 0; i < mf->n_bytes; i++) { | |
2696 | integer = (integer << 8) | valuep[i]; | |
2697 | } | |
2698 | if (mf->string == MFS_HEXADECIMAL) { | |
2699 | ds_put_format(s, "%#llx", integer); | |
2700 | } else { | |
2701 | ds_put_format(s, "%lld", integer); | |
2702 | } | |
2703 | ||
2704 | if (maskp) { | |
2705 | unsigned long long int mask; | |
2706 | ||
2707 | mask = 0; | |
2708 | for (i = 0; i < mf->n_bytes; i++) { | |
2709 | mask = (mask << 8) | maskp[i]; | |
2710 | } | |
2711 | ||
2712 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm | |
2713 | * not sure that that a bit-mask written in decimal is ever easier to | |
2714 | * understand than the same bit-mask written in hexadecimal. */ | |
2715 | ds_put_format(s, "/%#llx", mask); | |
2716 | } | |
2717 | } | |
2718 | ||
7257b535 | 2719 | static void |
8f75dea3 | 2720 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
2721 | { |
2722 | const struct frag_handling *h; | |
7257b535 | 2723 | |
eadef313 | 2724 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 2725 | value &= mask; |
7257b535 BP |
2726 | |
2727 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2728 | if (value == h->value && mask == h->mask) { | |
2729 | ds_put_cstr(s, h->name); | |
2730 | return; | |
2731 | } | |
2732 | } | |
2733 | ds_put_cstr(s, "<error>"); | |
2734 | } | |
2735 | ||
4fe3445a PS |
2736 | static void |
2737 | mf_format_tnl_flags_string(const ovs_be16 *valuep, struct ds *s) | |
2738 | { | |
2739 | format_flags(s, flow_tun_flag_to_string, ntohs(*valuep), '|'); | |
2740 | } | |
2741 | ||
6a885fd0 BP |
2742 | /* Appends to 's' a string representation of field 'mf' whose value is in |
2743 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
2744 | void | |
2745 | mf_format(const struct mf_field *mf, | |
2746 | const union mf_value *value, const union mf_value *mask, | |
2747 | struct ds *s) | |
2748 | { | |
2749 | if (mask) { | |
2750 | if (is_all_zeros((const uint8_t *) mask, mf->n_bytes)) { | |
2751 | ds_put_cstr(s, "ANY"); | |
2752 | return; | |
2753 | } else if (is_all_ones((const uint8_t *) mask, mf->n_bytes)) { | |
2754 | mask = NULL; | |
2755 | } | |
2756 | } | |
2757 | ||
2758 | switch (mf->string) { | |
72333065 JR |
2759 | case MFS_OFP_PORT_OXM: |
2760 | if (!mask) { | |
4e022ec0 | 2761 | ofp_port_t port; |
bc146369 | 2762 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
2763 | ofputil_format_port(port, s); |
2764 | break; | |
2765 | } | |
2766 | /* fall through */ | |
6a885fd0 BP |
2767 | case MFS_OFP_PORT: |
2768 | if (!mask) { | |
4e022ec0 | 2769 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), s); |
6a885fd0 BP |
2770 | break; |
2771 | } | |
2772 | /* fall through */ | |
2773 | case MFS_DECIMAL: | |
2774 | case MFS_HEXADECIMAL: | |
2775 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
2776 | break; | |
2777 | ||
2778 | case MFS_ETHERNET: | |
3b4d8ad3 | 2779 | eth_format_masked(value->mac, mask->mac, s); |
6a885fd0 BP |
2780 | break; |
2781 | ||
2782 | case MFS_IPV4: | |
b8266395 | 2783 | ip_format_masked(value->be32, mask ? mask->be32 : OVS_BE32_MAX, s); |
6a885fd0 BP |
2784 | break; |
2785 | ||
2786 | case MFS_IPV6: | |
2787 | print_ipv6_masked(s, &value->ipv6, mask ? &mask->ipv6 : NULL); | |
2788 | break; | |
2789 | ||
7257b535 | 2790 | case MFS_FRAG: |
8f75dea3 | 2791 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
2792 | break; |
2793 | ||
4fe3445a PS |
2794 | case MFS_TNL_FLAGS: |
2795 | mf_format_tnl_flags_string(&value->be16, s); | |
2796 | break; | |
2797 | ||
6a885fd0 BP |
2798 | default: |
2799 | NOT_REACHED(); | |
2800 | } | |
2801 | } | |
816fd533 | 2802 | \f |
9bab681f IY |
2803 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
2804 | * least-significant bits in 'x'. | |
2805 | */ | |
2806 | void | |
2807 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
2808 | const union mf_subvalue *x, struct flow *flow) | |
2809 | { | |
2810 | const struct mf_field *field = sf->field; | |
2811 | union mf_value value; | |
2812 | ||
2813 | mf_get_value(field, flow, &value); | |
158edc8d | 2814 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
2815 | sf->ofs, sf->n_bits); |
2816 | mf_set_flow_value(field, &value, flow); | |
2817 | } | |
2818 | ||
81a76618 | 2819 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 2820 | * least-significant bits in 'x'. |
615660a9 | 2821 | */ |
1b35df45 BP |
2822 | void |
2823 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 2824 | struct match *match) |
1b35df45 BP |
2825 | { |
2826 | const struct mf_field *field = sf->field; | |
2827 | union mf_value value, mask; | |
2828 | ||
81a76618 | 2829 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
2830 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
2831 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
81a76618 | 2832 | mf_set(field, &value, &mask, match); |
1b35df45 BP |
2833 | } |
2834 | ||
1b35df45 BP |
2835 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
2836 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
2837 | void | |
2838 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
2839 | union mf_subvalue *x) | |
2840 | { | |
2841 | union mf_value value; | |
2842 | ||
2843 | mf_get_value(sf->field, flow, &value); | |
2844 | ||
2845 | memset(x, 0, sizeof *x); | |
2846 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
2847 | x, sizeof *x, 0, | |
2848 | sf->n_bits); | |
2849 | } | |
2850 | ||
816fd533 BP |
2851 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
2852 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
2853 | * less. */ | |
2854 | uint64_t | |
2855 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
2856 | { | |
2857 | union mf_value value; | |
2858 | ||
2859 | mf_get_value(sf->field, flow, &value); | |
2860 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2861 | } | |
2862 | ||
2863 | /* Formats 'sf' into 's' in a format normally acceptable to | |
2864 | * mf_parse_subfield(). (It won't be acceptable if sf->field is NULL or if | |
2865 | * sf->field has no NXM name.) */ | |
2866 | void | |
2867 | mf_format_subfield(const struct mf_subfield *sf, struct ds *s) | |
2868 | { | |
2869 | if (!sf->field) { | |
2870 | ds_put_cstr(s, "<unknown>"); | |
2871 | } else if (sf->field->nxm_name) { | |
2872 | ds_put_cstr(s, sf->field->nxm_name); | |
2873 | } else if (sf->field->nxm_header) { | |
2874 | uint32_t header = sf->field->nxm_header; | |
2875 | ds_put_format(s, "%d:%d", NXM_VENDOR(header), NXM_FIELD(header)); | |
2876 | } else { | |
2877 | ds_put_cstr(s, sf->field->name); | |
2878 | } | |
2879 | ||
33500edd | 2880 | if (sf->field && sf->ofs == 0 && sf->n_bits == sf->field->n_bits) { |
816fd533 BP |
2881 | ds_put_cstr(s, "[]"); |
2882 | } else if (sf->n_bits == 1) { | |
2883 | ds_put_format(s, "[%d]", sf->ofs); | |
2884 | } else { | |
2885 | ds_put_format(s, "[%d..%d]", sf->ofs, sf->ofs + sf->n_bits - 1); | |
2886 | } | |
2887 | } | |
2888 | ||
2889 | static const struct mf_field * | |
2890 | mf_parse_subfield_name(const char *name, int name_len, bool *wild) | |
2891 | { | |
2892 | int i; | |
2893 | ||
2894 | *wild = name_len > 2 && !memcmp(&name[name_len - 2], "_W", 2); | |
2895 | if (*wild) { | |
2896 | name_len -= 2; | |
2897 | } | |
2898 | ||
2899 | for (i = 0; i < MFF_N_IDS; i++) { | |
2900 | const struct mf_field *mf = mf_from_id(i); | |
2901 | ||
2902 | if (mf->nxm_name | |
2903 | && !strncmp(mf->nxm_name, name, name_len) | |
2904 | && mf->nxm_name[name_len] == '\0') { | |
2905 | return mf; | |
2906 | } | |
b5e5143b BP |
2907 | if (mf->oxm_name |
2908 | && !strncmp(mf->oxm_name, name, name_len) | |
2909 | && mf->oxm_name[name_len] == '\0') { | |
2910 | return mf; | |
2911 | } | |
816fd533 BP |
2912 | } |
2913 | ||
2914 | return NULL; | |
2915 | } | |
2916 | ||
2917 | /* Parses a subfield from the beginning of '*sp' into 'sf'. If successful, | |
2918 | * returns NULL and advances '*sp' to the first byte following the parsed | |
2919 | * string. On failure, returns a malloc()'d error message, does not modify | |
2920 | * '*sp', and does not properly initialize 'sf'. | |
2921 | * | |
2922 | * The syntax parsed from '*sp' takes the form "header[start..end]" where | |
2923 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2924 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2925 | * may both be omitted (the [] are still required) to indicate an entire | |
2926 | * field. */ | |
bdda5aca | 2927 | char * WARN_UNUSED_RESULT |
816fd533 BP |
2928 | mf_parse_subfield__(struct mf_subfield *sf, const char **sp) |
2929 | { | |
2930 | const struct mf_field *field; | |
2931 | const char *name; | |
2932 | int start, end; | |
2933 | const char *s; | |
2934 | int name_len; | |
2935 | bool wild; | |
2936 | ||
2937 | s = *sp; | |
2938 | name = s; | |
2939 | name_len = strcspn(s, "["); | |
2940 | if (s[name_len] != '[') { | |
2941 | return xasprintf("%s: missing [ looking for field name", *sp); | |
2942 | } | |
2943 | ||
2944 | field = mf_parse_subfield_name(name, name_len, &wild); | |
2945 | if (!field) { | |
2946 | return xasprintf("%s: unknown field `%.*s'", *sp, name_len, s); | |
2947 | } | |
2948 | ||
2949 | s += name_len; | |
2950 | if (sscanf(s, "[%d..%d]", &start, &end) == 2) { | |
2951 | /* Nothing to do. */ | |
2952 | } else if (sscanf(s, "[%d]", &start) == 1) { | |
2953 | end = start; | |
2954 | } else if (!strncmp(s, "[]", 2)) { | |
2955 | start = 0; | |
2956 | end = field->n_bits - 1; | |
2957 | } else { | |
2958 | return xasprintf("%s: syntax error expecting [] or [<bit>] or " | |
2959 | "[<start>..<end>]", *sp); | |
2960 | } | |
2961 | s = strchr(s, ']') + 1; | |
2962 | ||
2963 | if (start > end) { | |
2964 | return xasprintf("%s: starting bit %d is after ending bit %d", | |
2965 | *sp, start, end); | |
2966 | } else if (start >= field->n_bits) { | |
2967 | return xasprintf("%s: starting bit %d is not valid because field is " | |
2968 | "only %d bits wide", *sp, start, field->n_bits); | |
2969 | } else if (end >= field->n_bits){ | |
2970 | return xasprintf("%s: ending bit %d is not valid because field is " | |
2971 | "only %d bits wide", *sp, end, field->n_bits); | |
2972 | } | |
2973 | ||
2974 | sf->field = field; | |
2975 | sf->ofs = start; | |
2976 | sf->n_bits = end - start + 1; | |
2977 | ||
2978 | *sp = s; | |
2979 | return NULL; | |
2980 | } | |
2981 | ||
bdda5aca BP |
2982 | /* Parses a subfield from the entirety of 's' into 'sf'. Returns NULL if |
2983 | * successful, otherwise a malloc()'d string describing the error. The caller | |
2984 | * is responsible for freeing the returned string. | |
816fd533 BP |
2985 | * |
2986 | * The syntax parsed from 's' takes the form "header[start..end]" where | |
2987 | * 'header' is the name of an NXM field and 'start' and 'end' are (inclusive) | |
2988 | * bit indexes. "..end" may be omitted to indicate a single bit. "start..end" | |
2989 | * may both be omitted (the [] are still required) to indicate an entire | |
2990 | * field. */ | |
bdda5aca | 2991 | char * WARN_UNUSED_RESULT |
816fd533 BP |
2992 | mf_parse_subfield(struct mf_subfield *sf, const char *s) |
2993 | { | |
bdda5aca BP |
2994 | char *error = mf_parse_subfield__(sf, &s); |
2995 | if (!error && s[0]) { | |
2996 | error = xstrdup("unexpected input following field syntax"); | |
816fd533 | 2997 | } |
bdda5aca | 2998 | return error; |
816fd533 | 2999 | } |
9bab681f IY |
3000 | |
3001 | void | |
3002 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
3003 | { | |
3004 | int i; | |
3005 | ||
3006 | for (i = 0; i < ARRAY_SIZE(subvalue->u8); i++) { | |
3007 | if (subvalue->u8[i]) { | |
3008 | ds_put_format(s, "0x%"PRIx8, subvalue->u8[i]); | |
3009 | for (i++; i < ARRAY_SIZE(subvalue->u8); i++) { | |
3010 | ds_put_format(s, "%02"PRIx8, subvalue->u8[i]); | |
3011 | } | |
3012 | return; | |
3013 | } | |
3014 | } | |
3015 | ds_put_char(s, '0'); | |
3016 | } |