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6a885fd0 | 1 | /* |
04f48a68 | 2 | * Copyright (c) 2011-2017 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 | ||
064d7f84 | 19 | #include "openvswitch/meta-flow.h" |
6a885fd0 | 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" | |
3e8a2ad1 | 27 | #include "openvswitch/dynamic-string.h" |
178742f9 | 28 | #include "nx-match.h" |
5c7c16d8 | 29 | #include "ovs-atomic.h" |
04f48a68 | 30 | #include "ovs-rcu.h" |
4663f9e0 | 31 | #include "ovs-thread.h" |
6a885fd0 BP |
32 | #include "packets.h" |
33 | #include "random.h" | |
ee89ea7b | 34 | #include "openvswitch/shash.h" |
6a885fd0 | 35 | #include "socket-util.h" |
9558d2a5 | 36 | #include "tun-metadata.h" |
6a885fd0 | 37 | #include "unaligned.h" |
86f35fb5 | 38 | #include "util.h" |
e03c096d | 39 | #include "openvswitch/ofp-errors.h" |
0d71302e BP |
40 | #include "openvswitch/ofp-match.h" |
41 | #include "openvswitch/ofp-port.h" | |
e6211adc | 42 | #include "openvswitch/vlog.h" |
aafee638 | 43 | #include "vl-mff-map.h" |
17553f27 | 44 | #include "openvswitch/nsh.h" |
816fd533 BP |
45 | |
46 | VLOG_DEFINE_THIS_MODULE(meta_flow); | |
6a885fd0 | 47 | |
13751fd8 JR |
48 | #define FLOW_U32OFS(FIELD) \ |
49 | offsetof(struct flow, FIELD) % 4 ? -1 : offsetof(struct flow, FIELD) / 4 | |
50 | ||
6a885fd0 BP |
51 | #define MF_FIELD_SIZES(MEMBER) \ |
52 | sizeof ((union mf_value *)0)->MEMBER, \ | |
53 | 8 * sizeof ((union mf_value *)0)->MEMBER | |
54 | ||
7f98c44d JR |
55 | extern const struct mf_field mf_fields[MFF_N_IDS]; /* Silence a warning. */ |
56 | ||
57 | const struct mf_field mf_fields[MFF_N_IDS] = { | |
a4ce8b25 | 58 | #include "meta-flow.inc" |
6a885fd0 BP |
59 | }; |
60 | ||
4663f9e0 BP |
61 | /* Maps from an mf_field's 'name' or 'extra_name' to the mf_field. */ |
62 | static struct shash mf_by_name; | |
28da1f8f | 63 | |
816fd533 BP |
64 | /* Rate limit for parse errors. These always indicate a bug in an OpenFlow |
65 | * controller and so there's not much point in showing a lot of them. */ | |
66 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
67 | ||
e3e96509 JR |
68 | #define MF_VALUE_EXACT_8 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
69 | #define MF_VALUE_EXACT_16 MF_VALUE_EXACT_8, MF_VALUE_EXACT_8 | |
70 | #define MF_VALUE_EXACT_32 MF_VALUE_EXACT_16, MF_VALUE_EXACT_16 | |
71 | #define MF_VALUE_EXACT_64 MF_VALUE_EXACT_32, MF_VALUE_EXACT_32 | |
72 | #define MF_VALUE_EXACT_128 MF_VALUE_EXACT_64, MF_VALUE_EXACT_64 | |
73 | #define MF_VALUE_EXACT_INITIALIZER { .tun_metadata = { MF_VALUE_EXACT_128 } } | |
74 | ||
75 | const union mf_value exact_match_mask = MF_VALUE_EXACT_INITIALIZER; | |
76 | ||
4663f9e0 | 77 | static void nxm_init(void); |
b5e5143b | 78 | |
6a885fd0 BP |
79 | /* Returns the field with the given 'name', or a null pointer if no field has |
80 | * that name. */ | |
81 | const struct mf_field * | |
82 | mf_from_name(const char *name) | |
83 | { | |
4663f9e0 | 84 | nxm_init(); |
6a885fd0 BP |
85 | return shash_find_data(&mf_by_name, name); |
86 | } | |
87 | ||
21b2fa61 JR |
88 | /* Returns the field with the given 'name' (which is 'len' bytes long), or a |
89 | * null pointer if no field has that name. */ | |
90 | const struct mf_field * | |
91 | mf_from_name_len(const char *name, size_t len) | |
92 | { | |
93 | nxm_init(); | |
94 | ||
95 | struct shash_node *node = shash_find_len(&mf_by_name, name, len); | |
96 | return node ? node->data : NULL; | |
97 | } | |
98 | ||
28da1f8f | 99 | static void |
4663f9e0 | 100 | nxm_do_init(void) |
28da1f8f | 101 | { |
216a32dd | 102 | int i; |
28da1f8f | 103 | |
4663f9e0 | 104 | shash_init(&mf_by_name); |
216a32dd JR |
105 | for (i = 0; i < MFF_N_IDS; i++) { |
106 | const struct mf_field *mf = &mf_fields[i]; | |
107 | ||
108 | ovs_assert(mf->id == i); /* Fields must be in the enum order. */ | |
109 | ||
4663f9e0 BP |
110 | shash_add_once(&mf_by_name, mf->name, mf); |
111 | if (mf->extra_name) { | |
112 | shash_add_once(&mf_by_name, mf->extra_name, mf); | |
113 | } | |
28da1f8f | 114 | } |
28da1f8f BP |
115 | } |
116 | ||
4663f9e0 BP |
117 | static void |
118 | nxm_init(void) | |
119 | { | |
120 | static pthread_once_t once = PTHREAD_ONCE_INIT; | |
121 | pthread_once(&once, nxm_do_init); | |
122 | } | |
123 | ||
35c1f798 BP |
124 | /* Consider the two value/mask pairs 'a_value/a_mask' and 'b_value/b_mask' as |
125 | * restrictions on a field's value. Then, this function initializes | |
126 | * 'dst_value/dst_mask' such that it combines the restrictions of both pairs. | |
127 | * This is not always possible, i.e. if one pair insists on a value of 0 in | |
128 | * some bit and the other pair insists on a value of 1 in that bit. This | |
129 | * function returns false in a case where the combined restriction is | |
130 | * impossible (in which case 'dst_value/dst_mask' is not fully initialized), | |
131 | * true otherwise. | |
132 | * | |
133 | * (As usually true for value/mask pairs in OVS, any 1-bit in a value must have | |
134 | * a corresponding 1-bit in its mask.) */ | |
135 | bool | |
136 | mf_subvalue_intersect(const union mf_subvalue *a_value, | |
137 | const union mf_subvalue *a_mask, | |
138 | const union mf_subvalue *b_value, | |
139 | const union mf_subvalue *b_mask, | |
140 | union mf_subvalue *dst_value, | |
141 | union mf_subvalue *dst_mask) | |
142 | { | |
143 | for (int i = 0; i < ARRAY_SIZE(a_value->be64); i++) { | |
144 | ovs_be64 av = a_value->be64[i]; | |
145 | ovs_be64 am = a_mask->be64[i]; | |
146 | ovs_be64 bv = b_value->be64[i]; | |
147 | ovs_be64 bm = b_mask->be64[i]; | |
148 | ovs_be64 *dv = &dst_value->be64[i]; | |
149 | ovs_be64 *dm = &dst_mask->be64[i]; | |
150 | ||
151 | if ((av ^ bv) & (am & bm)) { | |
152 | return false; | |
153 | } | |
154 | *dv = av | bv; | |
155 | *dm = am | bm; | |
156 | } | |
157 | return true; | |
158 | } | |
159 | ||
160 | /* Returns the "number of bits" in 'v', e.g. 1 if only the lowest-order bit is | |
161 | * set, 2 if the second-lowest-order bit is set, and so on. */ | |
162 | int | |
163 | mf_subvalue_width(const union mf_subvalue *v) | |
164 | { | |
165 | return 1 + bitwise_rscan(v, sizeof *v, true, sizeof *v * 8 - 1, -1); | |
166 | } | |
167 | ||
168 | /* For positive 'n', shifts the bits in 'value' 'n' bits to the left, and for | |
169 | * negative 'n', shifts the bits '-n' bits to the right. */ | |
170 | void | |
171 | mf_subvalue_shift(union mf_subvalue *value, int n) | |
172 | { | |
173 | if (n) { | |
174 | union mf_subvalue tmp; | |
175 | memset(&tmp, 0, sizeof tmp); | |
176 | ||
177 | if (n > 0 && n < 8 * sizeof tmp) { | |
178 | bitwise_copy(value, sizeof *value, 0, | |
179 | &tmp, sizeof tmp, n, | |
180 | 8 * sizeof tmp - n); | |
181 | } else if (n < 0 && n > -8 * sizeof tmp) { | |
182 | bitwise_copy(value, sizeof *value, -n, | |
183 | &tmp, sizeof tmp, 0, | |
184 | 8 * sizeof tmp + n); | |
185 | } | |
186 | *value = tmp; | |
187 | } | |
188 | } | |
189 | ||
77ab5fd2 BP |
190 | /* Appends a formatted representation of 'sv' to 's'. */ |
191 | void | |
192 | mf_subvalue_format(const union mf_subvalue *sv, struct ds *s) | |
193 | { | |
194 | ds_put_hex(s, sv, sizeof *sv); | |
195 | } | |
196 | ||
6a885fd0 BP |
197 | /* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc' |
198 | * specifies at least one bit in the field. | |
199 | * | |
200 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
201 | * meets 'mf''s prerequisites. */ | |
202 | bool | |
203 | mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) | |
204 | { | |
205 | switch (mf->id) { | |
a79f29f2 AZ |
206 | case MFF_DP_HASH: |
207 | return !wc->masks.dp_hash; | |
208 | case MFF_RECIRC_ID: | |
209 | return !wc->masks.recirc_id; | |
3d4b2e6e JS |
210 | case MFF_PACKET_TYPE: |
211 | return !wc->masks.packet_type; | |
18080541 BP |
212 | case MFF_CONJ_ID: |
213 | return !wc->masks.conj_id; | |
4fe3445a | 214 | case MFF_TUN_SRC: |
0ad90c84 | 215 | return !wc->masks.tunnel.ip_src; |
4fe3445a | 216 | case MFF_TUN_DST: |
0ad90c84 | 217 | return !wc->masks.tunnel.ip_dst; |
7dad8e9a TLSC |
218 | case MFF_TUN_IPV6_SRC: |
219 | return ipv6_mask_is_any(&wc->masks.tunnel.ipv6_src); | |
220 | case MFF_TUN_IPV6_DST: | |
221 | return ipv6_mask_is_any(&wc->masks.tunnel.ipv6_dst); | |
0ad90c84 | 222 | case MFF_TUN_ID: |
b666962b | 223 | return !wc->masks.tunnel.tun_id; |
4fe3445a | 224 | case MFF_TUN_TOS: |
b666962b | 225 | return !wc->masks.tunnel.ip_tos; |
4fe3445a | 226 | case MFF_TUN_TTL: |
b666962b | 227 | return !wc->masks.tunnel.ip_ttl; |
4fe3445a | 228 | case MFF_TUN_FLAGS: |
b666962b | 229 | return !(wc->masks.tunnel.flags & FLOW_TNL_PUB_F_MASK); |
ac6073e3 MC |
230 | case MFF_TUN_GBP_ID: |
231 | return !wc->masks.tunnel.gbp_id; | |
232 | case MFF_TUN_GBP_FLAGS: | |
233 | return !wc->masks.tunnel.gbp_flags; | |
7dc18ae9 WT |
234 | case MFF_TUN_ERSPAN_VER: |
235 | return !wc->masks.tunnel.erspan_ver; | |
236 | case MFF_TUN_ERSPAN_IDX: | |
237 | return !wc->masks.tunnel.erspan_idx; | |
238 | case MFF_TUN_ERSPAN_DIR: | |
239 | return !wc->masks.tunnel.erspan_dir; | |
240 | case MFF_TUN_ERSPAN_HWID: | |
241 | return !wc->masks.tunnel.erspan_hwid; | |
1cb20095 JG |
242 | CASE_MFF_TUN_METADATA: |
243 | return !ULLONG_GET(wc->masks.tunnel.metadata.present.map, | |
244 | mf->id - MFF_TUN_METADATA0); | |
969fc56c | 245 | case MFF_METADATA: |
26720e24 | 246 | return !wc->masks.metadata; |
0bdc4bec | 247 | case MFF_IN_PORT: |
72333065 | 248 | case MFF_IN_PORT_OXM: |
4e022ec0 | 249 | return !wc->masks.in_port.ofp_port; |
1b567fb9 AA |
250 | case MFF_SKB_PRIORITY: |
251 | return !wc->masks.skb_priority; | |
1362e248 JG |
252 | case MFF_PKT_MARK: |
253 | return !wc->masks.pkt_mark; | |
07659514 JS |
254 | case MFF_CT_STATE: |
255 | return !wc->masks.ct_state; | |
256 | case MFF_CT_ZONE: | |
257 | return !wc->masks.ct_zone; | |
8e53fe8c JS |
258 | case MFF_CT_MARK: |
259 | return !wc->masks.ct_mark; | |
9daf2348 | 260 | case MFF_CT_LABEL: |
2ff8484b | 261 | return ovs_u128_is_zero(wc->masks.ct_label); |
daf4d3c1 JR |
262 | case MFF_CT_NW_PROTO: |
263 | return !wc->masks.ct_nw_proto; | |
264 | case MFF_CT_NW_SRC: | |
265 | return !wc->masks.ct_nw_src; | |
266 | case MFF_CT_NW_DST: | |
267 | return !wc->masks.ct_nw_dst; | |
268 | case MFF_CT_TP_SRC: | |
269 | return !wc->masks.ct_tp_src; | |
270 | case MFF_CT_TP_DST: | |
271 | return !wc->masks.ct_tp_dst; | |
272 | case MFF_CT_IPV6_SRC: | |
273 | return ipv6_mask_is_any(&wc->masks.ct_ipv6_src); | |
274 | case MFF_CT_IPV6_DST: | |
275 | return ipv6_mask_is_any(&wc->masks.ct_ipv6_dst); | |
0d7e2fe4 | 276 | CASE_MFF_REGS: |
26720e24 | 277 | return !wc->masks.regs[mf->id - MFF_REG0]; |
79fe0f46 BP |
278 | CASE_MFF_XREGS: |
279 | return !flow_get_xreg(&wc->masks, mf->id - MFF_XREG0); | |
b23ada8e JP |
280 | CASE_MFF_XXREGS: { |
281 | ovs_u128 value = flow_get_xxreg(&wc->masks, mf->id - MFF_XXREG0); | |
282 | return ovs_u128_is_zero(value); | |
283 | } | |
c61f3870 BP |
284 | case MFF_ACTSET_OUTPUT: |
285 | return !wc->masks.actset_output; | |
6a885fd0 | 286 | |
73c0ce34 | 287 | case MFF_ETH_SRC: |
26720e24 | 288 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 289 | case MFF_ETH_DST: |
26720e24 | 290 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 291 | case MFF_ETH_TYPE: |
26720e24 | 292 | return !wc->masks.dl_type; |
6a885fd0 | 293 | |
e878338b SH |
294 | case MFF_ARP_SHA: |
295 | case MFF_ND_SLL: | |
26720e24 | 296 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
297 | |
298 | case MFF_ARP_THA: | |
299 | case MFF_ND_TLL: | |
26720e24 | 300 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 301 | |
6a885fd0 | 302 | case MFF_VLAN_TCI: |
f0fb825a | 303 | return !wc->masks.vlans[0].tci; |
441c57a9 | 304 | case MFF_DL_VLAN: |
f0fb825a | 305 | return !(wc->masks.vlans[0].tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 306 | case MFF_VLAN_VID: |
f0fb825a | 307 | return !(wc->masks.vlans[0].tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 308 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 309 | case MFF_VLAN_PCP: |
f0fb825a | 310 | return !(wc->masks.vlans[0].tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 311 | |
b02475c5 | 312 | case MFF_MPLS_LABEL: |
8bfd0fda | 313 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK)); |
b02475c5 | 314 | case MFF_MPLS_TC: |
60df616f | 315 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TC_MASK)); |
b02475c5 | 316 | case MFF_MPLS_BOS: |
60df616f | 317 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_BOS_MASK)); |
bef3f465 BP |
318 | case MFF_MPLS_TTL: |
319 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TTL_MASK)); | |
b02475c5 | 320 | |
6a885fd0 | 321 | case MFF_IPV4_SRC: |
26720e24 | 322 | return !wc->masks.nw_src; |
6a885fd0 | 323 | case MFF_IPV4_DST: |
26720e24 | 324 | return !wc->masks.nw_dst; |
6a885fd0 BP |
325 | |
326 | case MFF_IPV6_SRC: | |
26720e24 | 327 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 328 | case MFF_IPV6_DST: |
26720e24 | 329 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 330 | |
32455024 | 331 | case MFF_IPV6_LABEL: |
26720e24 | 332 | return !wc->masks.ipv6_label; |
32455024 | 333 | |
851d3105 | 334 | case MFF_IP_PROTO: |
26720e24 | 335 | return !wc->masks.nw_proto; |
5d9499c4 | 336 | case MFF_IP_DSCP: |
1638b906 | 337 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 338 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 339 | case MFF_IP_ECN: |
26720e24 | 340 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 341 | case MFF_IP_TTL: |
26720e24 | 342 | return !wc->masks.nw_ttl; |
5d9499c4 | 343 | |
47284b1f | 344 | case MFF_ND_TARGET: |
26720e24 | 345 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 346 | |
9b2b8497 VDA |
347 | case MFF_ND_RESERVED: |
348 | return !wc->masks.igmp_group_ip4; | |
349 | case MFF_ND_OPTIONS_TYPE: | |
350 | return !wc->masks.tcp_flags; | |
351 | ||
7257b535 | 352 | case MFF_IP_FRAG: |
26720e24 | 353 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 354 | |
851d3105 | 355 | case MFF_ARP_OP: |
26720e24 | 356 | return !wc->masks.nw_proto; |
6a885fd0 | 357 | case MFF_ARP_SPA: |
26720e24 | 358 | return !wc->masks.nw_src; |
6a885fd0 | 359 | case MFF_ARP_TPA: |
26720e24 | 360 | return !wc->masks.nw_dst; |
6a885fd0 | 361 | |
73f33563 BP |
362 | case MFF_TCP_SRC: |
363 | case MFF_UDP_SRC: | |
0d56eaf2 | 364 | case MFF_SCTP_SRC: |
73f33563 BP |
365 | case MFF_ICMPV4_TYPE: |
366 | case MFF_ICMPV6_TYPE: | |
26720e24 | 367 | return !wc->masks.tp_src; |
73f33563 BP |
368 | case MFF_TCP_DST: |
369 | case MFF_UDP_DST: | |
0d56eaf2 | 370 | case MFF_SCTP_DST: |
73f33563 BP |
371 | case MFF_ICMPV4_CODE: |
372 | case MFF_ICMPV6_CODE: | |
26720e24 | 373 | return !wc->masks.tp_dst; |
dc235f7f JR |
374 | case MFF_TCP_FLAGS: |
375 | return !wc->masks.tcp_flags; | |
73f33563 | 376 | |
3d2fbd70 JS |
377 | case MFF_NSH_FLAGS: |
378 | return !wc->masks.nsh.flags; | |
17553f27 YY |
379 | case MFF_NSH_TTL: |
380 | return !wc->masks.nsh.ttl; | |
3d2fbd70 JS |
381 | case MFF_NSH_MDTYPE: |
382 | return !wc->masks.nsh.mdtype; | |
383 | case MFF_NSH_NP: | |
384 | return !wc->masks.nsh.np; | |
385 | case MFF_NSH_SPI: | |
17553f27 | 386 | return !(wc->masks.nsh.path_hdr & htonl(NSH_SPI_MASK)); |
3d2fbd70 | 387 | case MFF_NSH_SI: |
17553f27 | 388 | return !(wc->masks.nsh.path_hdr & htonl(NSH_SI_MASK)); |
3d2fbd70 JS |
389 | case MFF_NSH_C1: |
390 | case MFF_NSH_C2: | |
391 | case MFF_NSH_C3: | |
392 | case MFF_NSH_C4: | |
f59cb331 | 393 | return !wc->masks.nsh.context[mf->id - MFF_NSH_C1]; |
3c6d05a0 WT |
394 | case MFF_TUN_GTPU_FLAGS: |
395 | return !wc->masks.tunnel.gtpu_flags; | |
396 | case MFF_TUN_GTPU_MSGTYPE: | |
397 | return !wc->masks.tunnel.gtpu_msgtype; | |
3d2fbd70 | 398 | |
6a885fd0 BP |
399 | case MFF_N_IDS: |
400 | default: | |
428b2edd | 401 | OVS_NOT_REACHED(); |
6a885fd0 BP |
402 | } |
403 | } | |
404 | ||
405 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
406 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
407 | * purposes, or to 0 if it is wildcarded. | |
408 | * | |
409 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
410 | * meets 'mf''s prerequisites. */ | |
411 | void | |
412 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
413 | union mf_value *mask) | |
414 | { | |
fb15feb0 | 415 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
416 | } |
417 | ||
418 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
419 | * if the mask is valid, false otherwise. */ | |
420 | bool | |
421 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
422 | { | |
423 | switch (mf->maskable) { | |
424 | case MFM_NONE: | |
53cb9c3e JR |
425 | return (is_all_zeros(mask, mf->n_bytes) || |
426 | is_all_ones(mask, mf->n_bytes)); | |
6a885fd0 BP |
427 | |
428 | case MFM_FULLY: | |
429 | return true; | |
6a885fd0 BP |
430 | } |
431 | ||
428b2edd | 432 | OVS_NOT_REACHED(); |
6a885fd0 BP |
433 | } |
434 | ||
aff49b8c | 435 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. |
67210a55 | 436 | * If a non-NULL 'mask' is passed, zero-valued matches can also be verified. |
aff49b8c | 437 | * Sets inspected bits in 'wc', if non-NULL. */ |
67210a55 JR |
438 | static bool |
439 | mf_are_prereqs_ok__(const struct mf_field *mf, const struct flow *flow, | |
daf4d3c1 | 440 | const struct flow_wildcards *mask, |
67210a55 | 441 | struct flow_wildcards *wc) |
6a885fd0 | 442 | { |
3d4b2e6e JS |
443 | ovs_be16 dl_type = get_dl_type(flow); |
444 | ||
6a885fd0 BP |
445 | switch (mf->prereqs) { |
446 | case MFP_NONE: | |
447 | return true; | |
beb75a40 JS |
448 | case MFP_ETHERNET: |
449 | return is_ethernet(flow, wc); | |
6a885fd0 | 450 | case MFP_ARP: |
3d4b2e6e JS |
451 | return (dl_type == htons(ETH_TYPE_ARP) || |
452 | dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 | 453 | case MFP_IPV4: |
3d4b2e6e | 454 | return dl_type == htons(ETH_TYPE_IP); |
6a885fd0 | 455 | case MFP_IPV6: |
3d4b2e6e | 456 | return dl_type == htons(ETH_TYPE_IPV6); |
8069b0da | 457 | case MFP_VLAN_VID: |
aff49b8c | 458 | return is_vlan(flow, wc); |
b02475c5 | 459 | case MFP_MPLS: |
3d4b2e6e | 460 | return eth_type_mpls(dl_type); |
6a885fd0 BP |
461 | case MFP_IP_ANY: |
462 | return is_ip_any(flow); | |
3d2fbd70 JS |
463 | case MFP_NSH: |
464 | return dl_type == htons(ETH_TYPE_NSH); | |
daf4d3c1 JR |
465 | case MFP_CT_VALID: |
466 | return is_ct_valid(flow, mask, wc); | |
6a885fd0 | 467 | case MFP_TCP: |
67210a55 | 468 | /* Matching !FRAG_LATER is not enforced (mask is not checked). */ |
aff49b8c | 469 | return is_tcp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
6a885fd0 | 470 | case MFP_UDP: |
aff49b8c | 471 | return is_udp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
0d56eaf2 | 472 | case MFP_SCTP: |
aff49b8c | 473 | return is_sctp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
268a95e0 | 474 | case MFP_ICMPV4: |
aff49b8c | 475 | return is_icmpv4(flow, wc); |
6a885fd0 | 476 | case MFP_ICMPV6: |
aff49b8c | 477 | return is_icmpv6(flow, wc); |
6a885fd0 | 478 | case MFP_ND: |
aff49b8c | 479 | return is_nd(flow, wc); |
6a885fd0 | 480 | case MFP_ND_SOLICIT: |
aff49b8c | 481 | return is_nd(flow, wc) && flow->tp_src == htons(ND_NEIGHBOR_SOLICIT); |
6a885fd0 | 482 | case MFP_ND_ADVERT: |
aff49b8c | 483 | return is_nd(flow, wc) && flow->tp_src == htons(ND_NEIGHBOR_ADVERT); |
6a885fd0 BP |
484 | } |
485 | ||
428b2edd | 486 | OVS_NOT_REACHED(); |
6a885fd0 BP |
487 | } |
488 | ||
67210a55 JR |
489 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. |
490 | * Sets inspected bits in 'wc', if non-NULL. */ | |
491 | bool | |
492 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow, | |
493 | struct flow_wildcards *wc) | |
494 | { | |
495 | return mf_are_prereqs_ok__(mf, flow, NULL, wc); | |
496 | } | |
497 | ||
498 | /* Returns true if 'match' meets the prerequisites for 'mf', false otherwise. | |
499 | */ | |
500 | bool | |
501 | mf_are_match_prereqs_ok(const struct mf_field *mf, const struct match *match) | |
502 | { | |
503 | return mf_are_prereqs_ok__(mf, &match->flow, &match->wc, NULL); | |
504 | } | |
505 | ||
6a885fd0 BP |
506 | /* Returns true if 'value' may be a valid value *as part of a masked match*, |
507 | * false otherwise. | |
508 | * | |
509 | * A value is not rejected just because it is not valid for the field in | |
510 | * question, but only if it doesn't make sense to test the bits in question at | |
511 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
512 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
513 | * it is still legitimate to test just for those bits (see the documentation | |
0da61033 | 514 | * for NXM_OF_VLAN_TCI in meta-flow.h). On the other hand, there is never a |
530180fd | 515 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
516 | bool |
517 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
518 | { | |
519 | switch (mf->id) { | |
a79f29f2 AZ |
520 | case MFF_DP_HASH: |
521 | case MFF_RECIRC_ID: | |
3d4b2e6e | 522 | case MFF_PACKET_TYPE: |
18080541 | 523 | case MFF_CONJ_ID: |
6a885fd0 | 524 | case MFF_TUN_ID: |
4fe3445a PS |
525 | case MFF_TUN_SRC: |
526 | case MFF_TUN_DST: | |
7dad8e9a TLSC |
527 | case MFF_TUN_IPV6_SRC: |
528 | case MFF_TUN_IPV6_DST: | |
4fe3445a PS |
529 | case MFF_TUN_TOS: |
530 | case MFF_TUN_TTL: | |
ac6073e3 MC |
531 | case MFF_TUN_GBP_ID: |
532 | case MFF_TUN_GBP_FLAGS: | |
7dc18ae9 WT |
533 | case MFF_TUN_ERSPAN_IDX: |
534 | case MFF_TUN_ERSPAN_VER: | |
535 | case MFF_TUN_ERSPAN_DIR: | |
536 | case MFF_TUN_ERSPAN_HWID: | |
3c6d05a0 WT |
537 | case MFF_TUN_GTPU_FLAGS: |
538 | case MFF_TUN_GTPU_MSGTYPE: | |
9558d2a5 | 539 | CASE_MFF_TUN_METADATA: |
969fc56c | 540 | case MFF_METADATA: |
6a885fd0 | 541 | case MFF_IN_PORT: |
1b567fb9 | 542 | case MFF_SKB_PRIORITY: |
1362e248 | 543 | case MFF_PKT_MARK: |
07659514 | 544 | case MFF_CT_ZONE: |
8e53fe8c | 545 | case MFF_CT_MARK: |
9daf2348 | 546 | case MFF_CT_LABEL: |
daf4d3c1 JR |
547 | case MFF_CT_NW_PROTO: |
548 | case MFF_CT_NW_SRC: | |
549 | case MFF_CT_NW_DST: | |
550 | case MFF_CT_IPV6_SRC: | |
551 | case MFF_CT_IPV6_DST: | |
552 | case MFF_CT_TP_SRC: | |
553 | case MFF_CT_TP_DST: | |
0d7e2fe4 | 554 | CASE_MFF_REGS: |
79fe0f46 | 555 | CASE_MFF_XREGS: |
b23ada8e | 556 | CASE_MFF_XXREGS: |
6a885fd0 BP |
557 | case MFF_ETH_SRC: |
558 | case MFF_ETH_DST: | |
559 | case MFF_ETH_TYPE: | |
560 | case MFF_VLAN_TCI: | |
bef3f465 | 561 | case MFF_MPLS_TTL: |
6a885fd0 BP |
562 | case MFF_IPV4_SRC: |
563 | case MFF_IPV4_DST: | |
564 | case MFF_IPV6_SRC: | |
565 | case MFF_IPV6_DST: | |
566 | case MFF_IP_PROTO: | |
a61680c6 | 567 | case MFF_IP_TTL: |
6a885fd0 BP |
568 | case MFF_ARP_SPA: |
569 | case MFF_ARP_TPA: | |
570 | case MFF_ARP_SHA: | |
571 | case MFF_ARP_THA: | |
572 | case MFF_TCP_SRC: | |
573 | case MFF_TCP_DST: | |
574 | case MFF_UDP_SRC: | |
575 | case MFF_UDP_DST: | |
0d56eaf2 JS |
576 | case MFF_SCTP_SRC: |
577 | case MFF_SCTP_DST: | |
268a95e0 BP |
578 | case MFF_ICMPV4_TYPE: |
579 | case MFF_ICMPV4_CODE: | |
580 | case MFF_ICMPV6_TYPE: | |
581 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
582 | case MFF_ND_TARGET: |
583 | case MFF_ND_SLL: | |
584 | case MFF_ND_TLL: | |
9b2b8497 VDA |
585 | case MFF_ND_RESERVED: |
586 | case MFF_ND_OPTIONS_TYPE: | |
6a885fd0 BP |
587 | return true; |
588 | ||
c61f3870 BP |
589 | case MFF_IN_PORT_OXM: |
590 | case MFF_ACTSET_OUTPUT: { | |
4e022ec0 | 591 | ofp_port_t port; |
72333065 JR |
592 | return !ofputil_port_from_ofp11(value->be32, &port); |
593 | } | |
594 | ||
530180fd | 595 | case MFF_IP_DSCP: |
7257b535 | 596 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
597 | case MFF_IP_DSCP_SHIFTED: |
598 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
599 | case MFF_IP_ECN: |
600 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 601 | case MFF_IP_FRAG: |
eadef313 | 602 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
dc235f7f JR |
603 | case MFF_TCP_FLAGS: |
604 | return !(value->be16 & ~htons(0x0fff)); | |
6a885fd0 BP |
605 | |
606 | case MFF_ARP_OP: | |
607 | return !(value->be16 & htons(0xff00)); | |
608 | ||
441c57a9 | 609 | case MFF_DL_VLAN: |
6a885fd0 | 610 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
611 | case MFF_VLAN_VID: |
612 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 613 | |
441c57a9 | 614 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 615 | case MFF_VLAN_PCP: |
24016f5a | 616 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 617 | |
fa8223b7 JP |
618 | case MFF_IPV6_LABEL: |
619 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
620 | ||
b02475c5 SH |
621 | case MFF_MPLS_LABEL: |
622 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
623 | ||
624 | case MFF_MPLS_TC: | |
625 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
626 | ||
627 | case MFF_MPLS_BOS: | |
628 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
629 | ||
b666962b JG |
630 | case MFF_TUN_FLAGS: |
631 | return !(value->be16 & ~htons(FLOW_TNL_PUB_F_MASK)); | |
632 | ||
07659514 JS |
633 | case MFF_CT_STATE: |
634 | return !(value->be32 & ~htonl(CS_SUPPORTED_MASK)); | |
635 | ||
3d2fbd70 JS |
636 | case MFF_NSH_FLAGS: |
637 | return true; | |
17553f27 YY |
638 | case MFF_NSH_TTL: |
639 | return (value->u8 <= 63); | |
3d2fbd70 JS |
640 | case MFF_NSH_MDTYPE: |
641 | return (value->u8 == 1 || value->u8 == 2); | |
642 | case MFF_NSH_NP: | |
643 | return true; | |
644 | case MFF_NSH_SPI: | |
645 | return !(value->be32 & htonl(0xFF000000)); | |
646 | case MFF_NSH_SI: | |
647 | case MFF_NSH_C1: | |
648 | case MFF_NSH_C2: | |
649 | case MFF_NSH_C3: | |
650 | case MFF_NSH_C4: | |
651 | return true; | |
652 | ||
6a885fd0 BP |
653 | case MFF_N_IDS: |
654 | default: | |
428b2edd | 655 | OVS_NOT_REACHED(); |
6a885fd0 BP |
656 | } |
657 | } | |
658 | ||
659 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
660 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
661 | void | |
662 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
663 | union mf_value *value) | |
664 | { | |
665 | switch (mf->id) { | |
a79f29f2 AZ |
666 | case MFF_DP_HASH: |
667 | value->be32 = htonl(flow->dp_hash); | |
668 | break; | |
669 | case MFF_RECIRC_ID: | |
670 | value->be32 = htonl(flow->recirc_id); | |
671 | break; | |
3d4b2e6e JS |
672 | case MFF_PACKET_TYPE: |
673 | value->be32 = flow->packet_type; | |
674 | break; | |
18080541 BP |
675 | case MFF_CONJ_ID: |
676 | value->be32 = htonl(flow->conj_id); | |
677 | break; | |
6a885fd0 | 678 | case MFF_TUN_ID: |
296e07ac | 679 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 680 | break; |
4fe3445a PS |
681 | case MFF_TUN_SRC: |
682 | value->be32 = flow->tunnel.ip_src; | |
683 | break; | |
684 | case MFF_TUN_DST: | |
685 | value->be32 = flow->tunnel.ip_dst; | |
686 | break; | |
7dad8e9a TLSC |
687 | case MFF_TUN_IPV6_SRC: |
688 | value->ipv6 = flow->tunnel.ipv6_src; | |
689 | break; | |
690 | case MFF_TUN_IPV6_DST: | |
691 | value->ipv6 = flow->tunnel.ipv6_dst; | |
692 | break; | |
4fe3445a | 693 | case MFF_TUN_FLAGS: |
b666962b | 694 | value->be16 = htons(flow->tunnel.flags & FLOW_TNL_PUB_F_MASK); |
4fe3445a | 695 | break; |
ac6073e3 MC |
696 | case MFF_TUN_GBP_ID: |
697 | value->be16 = flow->tunnel.gbp_id; | |
698 | break; | |
699 | case MFF_TUN_GBP_FLAGS: | |
700 | value->u8 = flow->tunnel.gbp_flags; | |
701 | break; | |
4fe3445a PS |
702 | case MFF_TUN_TTL: |
703 | value->u8 = flow->tunnel.ip_ttl; | |
704 | break; | |
705 | case MFF_TUN_TOS: | |
706 | value->u8 = flow->tunnel.ip_tos; | |
707 | break; | |
7dc18ae9 WT |
708 | case MFF_TUN_ERSPAN_VER: |
709 | value->u8 = flow->tunnel.erspan_ver; | |
710 | break; | |
711 | case MFF_TUN_ERSPAN_IDX: | |
712 | value->be32 = htonl(flow->tunnel.erspan_idx); | |
713 | break; | |
714 | case MFF_TUN_ERSPAN_DIR: | |
715 | value->u8 = flow->tunnel.erspan_dir; | |
716 | break; | |
717 | case MFF_TUN_ERSPAN_HWID: | |
718 | value->u8 = flow->tunnel.erspan_hwid; | |
719 | break; | |
3c6d05a0 WT |
720 | case MFF_TUN_GTPU_FLAGS: |
721 | value->u8 = flow->tunnel.gtpu_flags; | |
722 | break; | |
723 | case MFF_TUN_GTPU_MSGTYPE: | |
724 | value->u8 = flow->tunnel.gtpu_msgtype; | |
725 | break; | |
9558d2a5 | 726 | CASE_MFF_TUN_METADATA: |
6728d578 | 727 | tun_metadata_read(&flow->tunnel, mf, value); |
9558d2a5 | 728 | break; |
4fe3445a | 729 | |
969fc56c JS |
730 | case MFF_METADATA: |
731 | value->be64 = flow->metadata; | |
732 | break; | |
6a885fd0 BP |
733 | |
734 | case MFF_IN_PORT: | |
4e022ec0 | 735 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 736 | break; |
72333065 | 737 | case MFF_IN_PORT_OXM: |
4e022ec0 | 738 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 | 739 | break; |
c61f3870 BP |
740 | case MFF_ACTSET_OUTPUT: |
741 | value->be32 = ofputil_port_to_ofp11(flow->actset_output); | |
742 | break; | |
72333065 | 743 | |
1b567fb9 | 744 | case MFF_SKB_PRIORITY: |
a81f0a44 | 745 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
746 | break; |
747 | ||
1362e248 JG |
748 | case MFF_PKT_MARK: |
749 | value->be32 = htonl(flow->pkt_mark); | |
1b567fb9 AA |
750 | break; |
751 | ||
07659514 JS |
752 | case MFF_CT_STATE: |
753 | value->be32 = htonl(flow->ct_state); | |
754 | break; | |
755 | ||
756 | case MFF_CT_ZONE: | |
757 | value->be16 = htons(flow->ct_zone); | |
758 | break; | |
759 | ||
8e53fe8c JS |
760 | case MFF_CT_MARK: |
761 | value->be32 = htonl(flow->ct_mark); | |
762 | break; | |
763 | ||
9daf2348 | 764 | case MFF_CT_LABEL: |
32ea15f6 | 765 | value->be128 = hton128(flow->ct_label); |
9daf2348 JS |
766 | break; |
767 | ||
daf4d3c1 JR |
768 | case MFF_CT_NW_PROTO: |
769 | value->u8 = flow->ct_nw_proto; | |
770 | break; | |
771 | ||
772 | case MFF_CT_NW_SRC: | |
773 | value->be32 = flow->ct_nw_src; | |
774 | break; | |
775 | ||
776 | case MFF_CT_NW_DST: | |
777 | value->be32 = flow->ct_nw_dst; | |
778 | break; | |
779 | ||
780 | case MFF_CT_IPV6_SRC: | |
781 | value->ipv6 = flow->ct_ipv6_src; | |
782 | break; | |
783 | ||
784 | case MFF_CT_IPV6_DST: | |
785 | value->ipv6 = flow->ct_ipv6_dst; | |
786 | break; | |
787 | ||
788 | case MFF_CT_TP_SRC: | |
789 | value->be16 = flow->ct_tp_src; | |
790 | break; | |
791 | ||
792 | case MFF_CT_TP_DST: | |
793 | value->be16 = flow->ct_tp_dst; | |
794 | break; | |
795 | ||
0d7e2fe4 | 796 | CASE_MFF_REGS: |
2f98b0b7 | 797 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
798 | break; |
799 | ||
79fe0f46 BP |
800 | CASE_MFF_XREGS: |
801 | value->be64 = htonll(flow_get_xreg(flow, mf->id - MFF_XREG0)); | |
802 | break; | |
803 | ||
b23ada8e JP |
804 | CASE_MFF_XXREGS: |
805 | value->be128 = hton128(flow_get_xxreg(flow, mf->id - MFF_XXREG0)); | |
806 | break; | |
807 | ||
6a885fd0 | 808 | case MFF_ETH_SRC: |
74ff3298 | 809 | value->mac = flow->dl_src; |
6a885fd0 BP |
810 | break; |
811 | ||
812 | case MFF_ETH_DST: | |
74ff3298 | 813 | value->mac = flow->dl_dst; |
6a885fd0 BP |
814 | break; |
815 | ||
816 | case MFF_ETH_TYPE: | |
817 | value->be16 = flow->dl_type; | |
818 | break; | |
819 | ||
820 | case MFF_VLAN_TCI: | |
f0fb825a | 821 | value->be16 = flow->vlans[0].tci; |
6a885fd0 BP |
822 | break; |
823 | ||
441c57a9 | 824 | case MFF_DL_VLAN: |
f0fb825a | 825 | value->be16 = flow->vlans[0].tci & htons(VLAN_VID_MASK); |
6a885fd0 | 826 | break; |
cc34bc8c | 827 | case MFF_VLAN_VID: |
f0fb825a | 828 | value->be16 = flow->vlans[0].tci & htons(VLAN_VID_MASK | VLAN_CFI); |
cc34bc8c | 829 | break; |
6a885fd0 | 830 | |
441c57a9 | 831 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 832 | case MFF_VLAN_PCP: |
f0fb825a | 833 | value->u8 = vlan_tci_to_pcp(flow->vlans[0].tci); |
6a885fd0 BP |
834 | break; |
835 | ||
b02475c5 | 836 | case MFF_MPLS_LABEL: |
8bfd0fda | 837 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse[0])); |
b02475c5 SH |
838 | break; |
839 | ||
840 | case MFF_MPLS_TC: | |
8bfd0fda | 841 | value->u8 = mpls_lse_to_tc(flow->mpls_lse[0]); |
b02475c5 SH |
842 | break; |
843 | ||
844 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
845 | value->u8 = mpls_lse_to_bos(flow->mpls_lse[0]); |
846 | break; | |
b02475c5 | 847 | |
bef3f465 BP |
848 | case MFF_MPLS_TTL: |
849 | value->u8 = mpls_lse_to_ttl(flow->mpls_lse[0]); | |
850 | break; | |
851 | ||
6a885fd0 BP |
852 | case MFF_IPV4_SRC: |
853 | value->be32 = flow->nw_src; | |
854 | break; | |
855 | ||
856 | case MFF_IPV4_DST: | |
857 | value->be32 = flow->nw_dst; | |
858 | break; | |
859 | ||
860 | case MFF_IPV6_SRC: | |
861 | value->ipv6 = flow->ipv6_src; | |
862 | break; | |
863 | ||
864 | case MFF_IPV6_DST: | |
865 | value->ipv6 = flow->ipv6_dst; | |
866 | break; | |
867 | ||
fa8223b7 JP |
868 | case MFF_IPV6_LABEL: |
869 | value->be32 = flow->ipv6_label; | |
870 | break; | |
871 | ||
6a885fd0 BP |
872 | case MFF_IP_PROTO: |
873 | value->u8 = flow->nw_proto; | |
874 | break; | |
875 | ||
530180fd | 876 | case MFF_IP_DSCP: |
eadef313 | 877 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
878 | break; |
879 | ||
1638b906 BP |
880 | case MFF_IP_DSCP_SHIFTED: |
881 | value->u8 = flow->nw_tos >> 2; | |
882 | break; | |
883 | ||
530180fd | 884 | case MFF_IP_ECN: |
eadef313 | 885 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
886 | break; |
887 | ||
a61680c6 JP |
888 | case MFF_IP_TTL: |
889 | value->u8 = flow->nw_ttl; | |
890 | break; | |
891 | ||
7257b535 | 892 | case MFF_IP_FRAG: |
eadef313 | 893 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
894 | break; |
895 | ||
896 | case MFF_ARP_OP: | |
897 | value->be16 = htons(flow->nw_proto); | |
898 | break; | |
899 | ||
900 | case MFF_ARP_SPA: | |
901 | value->be32 = flow->nw_src; | |
902 | break; | |
903 | ||
904 | case MFF_ARP_TPA: | |
905 | value->be32 = flow->nw_dst; | |
906 | break; | |
907 | ||
908 | case MFF_ARP_SHA: | |
909 | case MFF_ND_SLL: | |
74ff3298 | 910 | value->mac = flow->arp_sha; |
6a885fd0 BP |
911 | break; |
912 | ||
913 | case MFF_ARP_THA: | |
914 | case MFF_ND_TLL: | |
74ff3298 | 915 | value->mac = flow->arp_tha; |
6a885fd0 BP |
916 | break; |
917 | ||
918 | case MFF_TCP_SRC: | |
6a885fd0 | 919 | case MFF_UDP_SRC: |
0d56eaf2 | 920 | case MFF_SCTP_SRC: |
6a885fd0 BP |
921 | value->be16 = flow->tp_src; |
922 | break; | |
923 | ||
71baec06 | 924 | case MFF_TCP_DST: |
6a885fd0 | 925 | case MFF_UDP_DST: |
0d56eaf2 | 926 | case MFF_SCTP_DST: |
6a885fd0 BP |
927 | value->be16 = flow->tp_dst; |
928 | break; | |
929 | ||
dc235f7f | 930 | case MFF_TCP_FLAGS: |
9b2b8497 | 931 | case MFF_ND_OPTIONS_TYPE: |
dc235f7f JR |
932 | value->be16 = flow->tcp_flags; |
933 | break; | |
934 | ||
9b2b8497 VDA |
935 | case MFF_ND_RESERVED: |
936 | value->be32 = flow->igmp_group_ip4; | |
937 | break; | |
938 | ||
268a95e0 BP |
939 | case MFF_ICMPV4_TYPE: |
940 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
941 | value->u8 = ntohs(flow->tp_src); |
942 | break; | |
943 | ||
268a95e0 BP |
944 | case MFF_ICMPV4_CODE: |
945 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
946 | value->u8 = ntohs(flow->tp_dst); |
947 | break; | |
948 | ||
949 | case MFF_ND_TARGET: | |
950 | value->ipv6 = flow->nd_target; | |
951 | break; | |
952 | ||
3d2fbd70 JS |
953 | case MFF_NSH_FLAGS: |
954 | value->u8 = flow->nsh.flags; | |
955 | break; | |
17553f27 YY |
956 | case MFF_NSH_TTL: |
957 | value->u8 = flow->nsh.ttl; | |
958 | break; | |
3d2fbd70 JS |
959 | case MFF_NSH_MDTYPE: |
960 | value->u8 = flow->nsh.mdtype; | |
961 | break; | |
962 | case MFF_NSH_NP: | |
963 | value->u8 = flow->nsh.np; | |
964 | break; | |
965 | case MFF_NSH_SPI: | |
17553f27 YY |
966 | value->be32 = nsh_path_hdr_to_spi(flow->nsh.path_hdr); |
967 | if (value->be32 == htonl(NSH_SPI_MASK >> NSH_SPI_SHIFT)) { | |
968 | value->be32 = OVS_BE32_MAX; | |
969 | } | |
3d2fbd70 JS |
970 | break; |
971 | case MFF_NSH_SI: | |
17553f27 | 972 | value->u8 = nsh_path_hdr_to_si(flow->nsh.path_hdr); |
3d2fbd70 JS |
973 | break; |
974 | case MFF_NSH_C1: | |
975 | case MFF_NSH_C2: | |
976 | case MFF_NSH_C3: | |
977 | case MFF_NSH_C4: | |
f59cb331 | 978 | value->be32 = flow->nsh.context[mf->id - MFF_NSH_C1]; |
3d2fbd70 JS |
979 | break; |
980 | ||
6a885fd0 BP |
981 | case MFF_N_IDS: |
982 | default: | |
428b2edd | 983 | OVS_NOT_REACHED(); |
6a885fd0 BP |
984 | } |
985 | } | |
986 | ||
81a76618 BP |
987 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
988 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
4f7b100c JG |
989 | * prerequisites. |
990 | * | |
991 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
992 | * with the request or NULL if there is no error. The caller is reponsible | |
993 | * for freeing the string. */ | |
6a885fd0 BP |
994 | void |
995 | mf_set_value(const struct mf_field *mf, | |
4f7b100c | 996 | const union mf_value *value, struct match *match, char **err_str) |
6a885fd0 | 997 | { |
4f7b100c JG |
998 | if (err_str) { |
999 | *err_str = NULL; | |
1000 | } | |
1001 | ||
6a885fd0 | 1002 | switch (mf->id) { |
a79f29f2 AZ |
1003 | case MFF_DP_HASH: |
1004 | match_set_dp_hash(match, ntohl(value->be32)); | |
1005 | break; | |
1006 | case MFF_RECIRC_ID: | |
1007 | match_set_recirc_id(match, ntohl(value->be32)); | |
1008 | break; | |
3d4b2e6e JS |
1009 | case MFF_PACKET_TYPE: |
1010 | match_set_packet_type(match, value->be32); | |
1011 | break; | |
18080541 BP |
1012 | case MFF_CONJ_ID: |
1013 | match_set_conj_id(match, ntohl(value->be32)); | |
1014 | break; | |
6a885fd0 | 1015 | case MFF_TUN_ID: |
81a76618 | 1016 | match_set_tun_id(match, value->be64); |
6a885fd0 | 1017 | break; |
4fe3445a PS |
1018 | case MFF_TUN_SRC: |
1019 | match_set_tun_src(match, value->be32); | |
1020 | break; | |
1021 | case MFF_TUN_DST: | |
1022 | match_set_tun_dst(match, value->be32); | |
1023 | break; | |
7dad8e9a TLSC |
1024 | case MFF_TUN_IPV6_SRC: |
1025 | match_set_tun_ipv6_src(match, &value->ipv6); | |
1026 | break; | |
1027 | case MFF_TUN_IPV6_DST: | |
1028 | match_set_tun_ipv6_dst(match, &value->ipv6); | |
1029 | break; | |
4fe3445a PS |
1030 | case MFF_TUN_FLAGS: |
1031 | match_set_tun_flags(match, ntohs(value->be16)); | |
1032 | break; | |
ac6073e3 MC |
1033 | case MFF_TUN_GBP_ID: |
1034 | match_set_tun_gbp_id(match, value->be16); | |
1035 | break; | |
1036 | case MFF_TUN_GBP_FLAGS: | |
1037 | match_set_tun_gbp_flags(match, value->u8); | |
1038 | break; | |
4fe3445a PS |
1039 | case MFF_TUN_TOS: |
1040 | match_set_tun_tos(match, value->u8); | |
1041 | break; | |
1042 | case MFF_TUN_TTL: | |
1043 | match_set_tun_ttl(match, value->u8); | |
1044 | break; | |
7dc18ae9 WT |
1045 | case MFF_TUN_ERSPAN_VER: |
1046 | match_set_tun_erspan_ver(match, value->u8); | |
1047 | break; | |
1048 | case MFF_TUN_ERSPAN_IDX: | |
1049 | match_set_tun_erspan_idx(match, ntohl(value->be32)); | |
1050 | break; | |
1051 | case MFF_TUN_ERSPAN_DIR: | |
1052 | match_set_tun_erspan_dir(match, value->u8); | |
1053 | break; | |
1054 | case MFF_TUN_ERSPAN_HWID: | |
1055 | match_set_tun_erspan_hwid(match, value->u8); | |
1056 | break; | |
3c6d05a0 WT |
1057 | case MFF_TUN_GTPU_FLAGS: |
1058 | match_set_tun_gtpu_flags(match, value->u8); | |
1059 | break; | |
1060 | case MFF_TUN_GTPU_MSGTYPE: | |
1061 | match_set_tun_gtpu_msgtype(match, value->u8); | |
1062 | break; | |
9558d2a5 | 1063 | CASE_MFF_TUN_METADATA: |
4f7b100c | 1064 | tun_metadata_set_match(mf, value, NULL, match, err_str); |
9558d2a5 | 1065 | break; |
4fe3445a | 1066 | |
969fc56c | 1067 | case MFF_METADATA: |
81a76618 | 1068 | match_set_metadata(match, value->be64); |
969fc56c | 1069 | break; |
6a885fd0 BP |
1070 | |
1071 | case MFF_IN_PORT: | |
4e022ec0 | 1072 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
1073 | break; |
1074 | ||
72333065 | 1075 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 1076 | ofp_port_t port; |
bc146369 | 1077 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
1078 | match_set_in_port(match, port); |
1079 | break; | |
1080 | } | |
c61f3870 BP |
1081 | case MFF_ACTSET_OUTPUT: { |
1082 | ofp_port_t port; | |
1083 | ofputil_port_from_ofp11(value->be32, &port); | |
1084 | match_set_actset_output(match, port); | |
1085 | break; | |
1086 | } | |
72333065 | 1087 | |
1b567fb9 AA |
1088 | case MFF_SKB_PRIORITY: |
1089 | match_set_skb_priority(match, ntohl(value->be32)); | |
1090 | break; | |
1091 | ||
1362e248 JG |
1092 | case MFF_PKT_MARK: |
1093 | match_set_pkt_mark(match, ntohl(value->be32)); | |
1b567fb9 AA |
1094 | break; |
1095 | ||
07659514 JS |
1096 | case MFF_CT_STATE: |
1097 | match_set_ct_state(match, ntohl(value->be32)); | |
1098 | break; | |
1099 | ||
1100 | case MFF_CT_ZONE: | |
1101 | match_set_ct_zone(match, ntohs(value->be16)); | |
1102 | break; | |
1103 | ||
8e53fe8c JS |
1104 | case MFF_CT_MARK: |
1105 | match_set_ct_mark(match, ntohl(value->be32)); | |
1106 | break; | |
1107 | ||
32ea15f6 JP |
1108 | case MFF_CT_LABEL: |
1109 | match_set_ct_label(match, ntoh128(value->be128)); | |
9daf2348 | 1110 | break; |
9daf2348 | 1111 | |
daf4d3c1 JR |
1112 | case MFF_CT_NW_PROTO: |
1113 | match_set_ct_nw_proto(match, value->u8); | |
1114 | break; | |
1115 | ||
1116 | case MFF_CT_NW_SRC: | |
1117 | match_set_ct_nw_src(match, value->be32); | |
1118 | break; | |
1119 | ||
1120 | case MFF_CT_NW_DST: | |
1121 | match_set_ct_nw_dst(match, value->be32); | |
1122 | break; | |
1123 | ||
1124 | case MFF_CT_IPV6_SRC: | |
1125 | match_set_ct_ipv6_src(match, &value->ipv6); | |
1126 | break; | |
1127 | ||
1128 | case MFF_CT_IPV6_DST: | |
1129 | match_set_ct_ipv6_dst(match, &value->ipv6); | |
1130 | break; | |
1131 | ||
1132 | case MFF_CT_TP_SRC: | |
1133 | match_set_ct_tp_src(match, value->be16); | |
1134 | break; | |
1135 | ||
1136 | case MFF_CT_TP_DST: | |
1137 | match_set_ct_tp_dst(match, value->be16); | |
1138 | break; | |
1139 | ||
0d7e2fe4 | 1140 | CASE_MFF_REGS: |
81a76618 | 1141 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 1142 | break; |
6a885fd0 | 1143 | |
79fe0f46 BP |
1144 | CASE_MFF_XREGS: |
1145 | match_set_xreg(match, mf->id - MFF_XREG0, ntohll(value->be64)); | |
1146 | break; | |
1147 | ||
b23ada8e JP |
1148 | CASE_MFF_XXREGS: |
1149 | match_set_xxreg(match, mf->id - MFF_XXREG0, ntoh128(value->be128)); | |
1150 | break; | |
1151 | ||
6a885fd0 | 1152 | case MFF_ETH_SRC: |
81a76618 | 1153 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
1154 | break; |
1155 | ||
1156 | case MFF_ETH_DST: | |
81a76618 | 1157 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
1158 | break; |
1159 | ||
1160 | case MFF_ETH_TYPE: | |
81a76618 | 1161 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
1162 | break; |
1163 | ||
1164 | case MFF_VLAN_TCI: | |
81a76618 | 1165 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
1166 | break; |
1167 | ||
441c57a9 | 1168 | case MFF_DL_VLAN: |
2f9366be | 1169 | match_set_dl_vlan(match, value->be16, 0); |
6a885fd0 | 1170 | break; |
cc34bc8c | 1171 | case MFF_VLAN_VID: |
81a76618 | 1172 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 1173 | break; |
6a885fd0 | 1174 | |
441c57a9 | 1175 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1176 | case MFF_VLAN_PCP: |
2f9366be | 1177 | match_set_dl_vlan_pcp(match, value->u8, 0); |
6a885fd0 BP |
1178 | break; |
1179 | ||
b02475c5 | 1180 | case MFF_MPLS_LABEL: |
8bfd0fda | 1181 | match_set_mpls_label(match, 0, value->be32); |
b02475c5 SH |
1182 | break; |
1183 | ||
1184 | case MFF_MPLS_TC: | |
8bfd0fda | 1185 | match_set_mpls_tc(match, 0, value->u8); |
b02475c5 SH |
1186 | break; |
1187 | ||
1188 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1189 | match_set_mpls_bos(match, 0, value->u8); |
1190 | break; | |
b02475c5 | 1191 | |
bef3f465 BP |
1192 | case MFF_MPLS_TTL: |
1193 | match_set_mpls_ttl(match, 0, value->u8); | |
1194 | break; | |
1195 | ||
6a885fd0 | 1196 | case MFF_IPV4_SRC: |
81a76618 | 1197 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1198 | break; |
1199 | ||
1200 | case MFF_IPV4_DST: | |
81a76618 | 1201 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1202 | break; |
1203 | ||
1204 | case MFF_IPV6_SRC: | |
81a76618 | 1205 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
1206 | break; |
1207 | ||
1208 | case MFF_IPV6_DST: | |
81a76618 | 1209 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
1210 | break; |
1211 | ||
fa8223b7 | 1212 | case MFF_IPV6_LABEL: |
81a76618 | 1213 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
1214 | break; |
1215 | ||
6a885fd0 | 1216 | case MFF_IP_PROTO: |
81a76618 | 1217 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
1218 | break; |
1219 | ||
530180fd | 1220 | case MFF_IP_DSCP: |
81a76618 | 1221 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
1222 | break; |
1223 | ||
1638b906 BP |
1224 | case MFF_IP_DSCP_SHIFTED: |
1225 | match_set_nw_dscp(match, value->u8 << 2); | |
1226 | break; | |
1227 | ||
530180fd | 1228 | case MFF_IP_ECN: |
81a76618 | 1229 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
1230 | break; |
1231 | ||
a61680c6 | 1232 | case MFF_IP_TTL: |
81a76618 | 1233 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
1234 | break; |
1235 | ||
7257b535 | 1236 | case MFF_IP_FRAG: |
81a76618 | 1237 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
1238 | break; |
1239 | ||
6a885fd0 | 1240 | case MFF_ARP_OP: |
81a76618 | 1241 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
1242 | break; |
1243 | ||
1244 | case MFF_ARP_SPA: | |
81a76618 | 1245 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1246 | break; |
1247 | ||
1248 | case MFF_ARP_TPA: | |
81a76618 | 1249 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1250 | break; |
1251 | ||
1252 | case MFF_ARP_SHA: | |
1253 | case MFF_ND_SLL: | |
81a76618 | 1254 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
1255 | break; |
1256 | ||
1257 | case MFF_ARP_THA: | |
1258 | case MFF_ND_TLL: | |
81a76618 | 1259 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1260 | break; |
1261 | ||
1262 | case MFF_TCP_SRC: | |
6a885fd0 | 1263 | case MFF_UDP_SRC: |
0d56eaf2 | 1264 | case MFF_SCTP_SRC: |
81a76618 | 1265 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1266 | break; |
1267 | ||
71baec06 | 1268 | case MFF_TCP_DST: |
6a885fd0 | 1269 | case MFF_UDP_DST: |
0d56eaf2 | 1270 | case MFF_SCTP_DST: |
81a76618 | 1271 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1272 | break; |
1273 | ||
dc235f7f JR |
1274 | case MFF_TCP_FLAGS: |
1275 | match_set_tcp_flags(match, value->be16); | |
1276 | break; | |
1277 | ||
268a95e0 BP |
1278 | case MFF_ICMPV4_TYPE: |
1279 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1280 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1281 | break; |
1282 | ||
268a95e0 BP |
1283 | case MFF_ICMPV4_CODE: |
1284 | case MFF_ICMPV6_CODE: | |
81a76618 | 1285 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1286 | break; |
1287 | ||
1288 | case MFF_ND_TARGET: | |
81a76618 | 1289 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1290 | break; |
1291 | ||
9b2b8497 VDA |
1292 | case MFF_ND_RESERVED: |
1293 | match_set_nd_reserved(match, value->be32); | |
1294 | break; | |
1295 | ||
1296 | case MFF_ND_OPTIONS_TYPE: | |
1297 | match_set_nd_options_type(match, value->u8); | |
1298 | break; | |
1299 | ||
3d2fbd70 JS |
1300 | case MFF_NSH_FLAGS: |
1301 | MATCH_SET_FIELD_UINT8(match, nsh.flags, value->u8); | |
1302 | break; | |
17553f27 YY |
1303 | case MFF_NSH_TTL: |
1304 | MATCH_SET_FIELD_UINT8(match, nsh.ttl, value->u8); | |
1305 | break; | |
3d2fbd70 JS |
1306 | case MFF_NSH_MDTYPE: |
1307 | MATCH_SET_FIELD_UINT8(match, nsh.mdtype, value->u8); | |
1308 | break; | |
1309 | case MFF_NSH_NP: | |
1310 | MATCH_SET_FIELD_UINT8(match, nsh.np, value->u8); | |
1311 | break; | |
1312 | case MFF_NSH_SPI: | |
17553f27 YY |
1313 | match->wc.masks.nsh.path_hdr |= htonl(NSH_SPI_MASK); |
1314 | nsh_path_hdr_set_spi(&match->flow.nsh.path_hdr, value->be32); | |
3d2fbd70 JS |
1315 | break; |
1316 | case MFF_NSH_SI: | |
17553f27 YY |
1317 | match->wc.masks.nsh.path_hdr |= htonl(NSH_SI_MASK); |
1318 | nsh_path_hdr_set_si(&match->flow.nsh.path_hdr, value->u8); | |
3d2fbd70 JS |
1319 | break; |
1320 | case MFF_NSH_C1: | |
1321 | case MFF_NSH_C2: | |
1322 | case MFF_NSH_C3: | |
1323 | case MFF_NSH_C4: | |
f59cb331 YY |
1324 | MATCH_SET_FIELD_BE32(match, nsh.context[mf->id - MFF_NSH_C1], |
1325 | value->be32); | |
3d2fbd70 JS |
1326 | break; |
1327 | ||
6a885fd0 BP |
1328 | case MFF_N_IDS: |
1329 | default: | |
428b2edd | 1330 | OVS_NOT_REACHED(); |
6a885fd0 BP |
1331 | } |
1332 | } | |
1333 | ||
5cd4ead5 JR |
1334 | /* Unwildcard the bits in 'mask' of the 'wc' member field described by 'mf'. |
1335 | * The caller is responsible for ensuring that 'wc' meets 'mf''s | |
1336 | * prerequisites. */ | |
5a0a5702 | 1337 | void |
5cd4ead5 JR |
1338 | mf_mask_field_masked(const struct mf_field *mf, const union mf_value *mask, |
1339 | struct flow_wildcards *wc) | |
5a0a5702 | 1340 | { |
5cd4ead5 JR |
1341 | union mf_value temp_mask; |
1342 | /* For MFF_DL_VLAN, we cannot send a all 1's to flow_set_dl_vlan() as that | |
1343 | * will be considered as OFP10_VLAN_NONE. So make sure the mask only has | |
1344 | * valid bits in this case. */ | |
5a0a5702 | 1345 | if (mf->id == MFF_DL_VLAN) { |
5cd4ead5 JR |
1346 | temp_mask.be16 = htons(VLAN_VID_MASK) & mask->be16; |
1347 | mask = &temp_mask; | |
5a0a5702 | 1348 | } |
5cd4ead5 JR |
1349 | |
1350 | union mf_value mask_value; | |
1351 | ||
1352 | mf_get_value(mf, &wc->masks, &mask_value); | |
1353 | for (size_t i = 0; i < mf->n_bytes; i++) { | |
1354 | mask_value.b[i] |= mask->b[i]; | |
1355 | } | |
1356 | mf_set_flow_value(mf, &mask_value, &wc->masks); | |
1357 | } | |
1358 | ||
1359 | /* Unwildcard 'wc' member field described by 'mf'. The caller is | |
1360 | * responsible for ensuring that 'mask' meets 'mf''s prerequisites. */ | |
1361 | void | |
1362 | mf_mask_field(const struct mf_field *mf, struct flow_wildcards *wc) | |
1363 | { | |
1364 | mf_mask_field_masked(mf, &exact_match_mask, wc); | |
5a0a5702 GS |
1365 | } |
1366 | ||
4ede8c79 JG |
1367 | static int |
1368 | field_len(const struct mf_field *mf, const union mf_value *value_) | |
1369 | { | |
1370 | const uint8_t *value = &value_->u8; | |
1371 | int i; | |
1372 | ||
1373 | if (!mf->variable_len) { | |
1374 | return mf->n_bytes; | |
1375 | } | |
1376 | ||
1377 | if (!value) { | |
1378 | return 0; | |
1379 | } | |
1380 | ||
1381 | for (i = 0; i < mf->n_bytes; i++) { | |
1382 | if (value[i] != 0) { | |
1383 | break; | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | return mf->n_bytes - i; | |
1388 | } | |
1389 | ||
1390 | /* Returns the effective length of the field. For fixed length fields, | |
1391 | * this is just the defined length. For variable length fields, it is | |
1392 | * the minimum size encoding that retains the same meaning (i.e. | |
1cb20095 JG |
1393 | * discarding leading zeros). |
1394 | * | |
1395 | * 'is_masked' returns (if non-NULL) whether the original contained | |
1396 | * a mask. Otherwise, a mask that is the same length as the value | |
1397 | * might be misinterpreted as an exact match. */ | |
4ede8c79 JG |
1398 | int |
1399 | mf_field_len(const struct mf_field *mf, const union mf_value *value, | |
1cb20095 | 1400 | const union mf_value *mask, bool *is_masked_) |
4ede8c79 JG |
1401 | { |
1402 | int len, mask_len; | |
1cb20095 | 1403 | bool is_masked = mask && !is_all_ones(mask, mf->n_bytes); |
4ede8c79 JG |
1404 | |
1405 | len = field_len(mf, value); | |
1cb20095 | 1406 | if (is_masked) { |
4ede8c79 JG |
1407 | mask_len = field_len(mf, mask); |
1408 | len = MAX(len, mask_len); | |
1409 | } | |
1410 | ||
1cb20095 JG |
1411 | if (is_masked_) { |
1412 | *is_masked_ = is_masked; | |
1413 | } | |
1414 | ||
4ede8c79 JG |
1415 | return len; |
1416 | } | |
1417 | ||
910fb1d8 JP |
1418 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1419 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1420 | void |
1421 | mf_set_flow_value(const struct mf_field *mf, | |
1422 | const union mf_value *value, struct flow *flow) | |
1423 | { | |
1424 | switch (mf->id) { | |
a79f29f2 AZ |
1425 | case MFF_DP_HASH: |
1426 | flow->dp_hash = ntohl(value->be32); | |
1427 | break; | |
1428 | case MFF_RECIRC_ID: | |
1429 | flow->recirc_id = ntohl(value->be32); | |
1430 | break; | |
3d4b2e6e JS |
1431 | case MFF_PACKET_TYPE: |
1432 | flow->packet_type = value->be32; | |
1433 | break; | |
18080541 BP |
1434 | case MFF_CONJ_ID: |
1435 | flow->conj_id = ntohl(value->be32); | |
1436 | break; | |
28da1f8f | 1437 | case MFF_TUN_ID: |
296e07ac | 1438 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1439 | break; |
4fe3445a PS |
1440 | case MFF_TUN_SRC: |
1441 | flow->tunnel.ip_src = value->be32; | |
1442 | break; | |
1443 | case MFF_TUN_DST: | |
1444 | flow->tunnel.ip_dst = value->be32; | |
1445 | break; | |
7dad8e9a TLSC |
1446 | case MFF_TUN_IPV6_SRC: |
1447 | flow->tunnel.ipv6_src = value->ipv6; | |
1448 | break; | |
1449 | case MFF_TUN_IPV6_DST: | |
1450 | flow->tunnel.ipv6_dst = value->ipv6; | |
1451 | break; | |
4fe3445a | 1452 | case MFF_TUN_FLAGS: |
b666962b JG |
1453 | flow->tunnel.flags = (flow->tunnel.flags & ~FLOW_TNL_PUB_F_MASK) | |
1454 | ntohs(value->be16); | |
4fe3445a | 1455 | break; |
ac6073e3 MC |
1456 | case MFF_TUN_GBP_ID: |
1457 | flow->tunnel.gbp_id = value->be16; | |
1458 | break; | |
1459 | case MFF_TUN_GBP_FLAGS: | |
1460 | flow->tunnel.gbp_flags = value->u8; | |
1461 | break; | |
4fe3445a PS |
1462 | case MFF_TUN_TOS: |
1463 | flow->tunnel.ip_tos = value->u8; | |
1464 | break; | |
1465 | case MFF_TUN_TTL: | |
1466 | flow->tunnel.ip_ttl = value->u8; | |
1467 | break; | |
7dc18ae9 WT |
1468 | case MFF_TUN_ERSPAN_VER: |
1469 | flow->tunnel.erspan_ver = value->u8; | |
1470 | break; | |
1471 | case MFF_TUN_ERSPAN_IDX: | |
1472 | flow->tunnel.erspan_idx = ntohl(value->be32); | |
1473 | break; | |
1474 | case MFF_TUN_ERSPAN_DIR: | |
1475 | flow->tunnel.erspan_dir = value->u8; | |
1476 | break; | |
1477 | case MFF_TUN_ERSPAN_HWID: | |
1478 | flow->tunnel.erspan_hwid = value->u8; | |
1479 | break; | |
3c6d05a0 WT |
1480 | case MFF_TUN_GTPU_FLAGS: |
1481 | flow->tunnel.gtpu_flags = value->u8; | |
1482 | break; | |
1483 | case MFF_TUN_GTPU_MSGTYPE: | |
1484 | flow->tunnel.gtpu_msgtype = value->u8; | |
1485 | break; | |
9558d2a5 | 1486 | CASE_MFF_TUN_METADATA: |
6728d578 | 1487 | tun_metadata_write(&flow->tunnel, mf, value); |
1aaf0ada | 1488 | break; |
969fc56c JS |
1489 | case MFF_METADATA: |
1490 | flow->metadata = value->be64; | |
1491 | break; | |
28da1f8f BP |
1492 | |
1493 | case MFF_IN_PORT: | |
4e022ec0 | 1494 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f | 1495 | break; |
c61f3870 BP |
1496 | case MFF_IN_PORT_OXM: |
1497 | ofputil_port_from_ofp11(value->be32, &flow->in_port.ofp_port); | |
1498 | break; | |
1499 | case MFF_ACTSET_OUTPUT: | |
1500 | ofputil_port_from_ofp11(value->be32, &flow->actset_output); | |
72333065 | 1501 | break; |
72333065 | 1502 | |
1b567fb9 AA |
1503 | case MFF_SKB_PRIORITY: |
1504 | flow->skb_priority = ntohl(value->be32); | |
1505 | break; | |
1506 | ||
1362e248 JG |
1507 | case MFF_PKT_MARK: |
1508 | flow->pkt_mark = ntohl(value->be32); | |
1b567fb9 AA |
1509 | break; |
1510 | ||
07659514 JS |
1511 | case MFF_CT_STATE: |
1512 | flow->ct_state = ntohl(value->be32); | |
1513 | break; | |
1514 | ||
1515 | case MFF_CT_ZONE: | |
1516 | flow->ct_zone = ntohs(value->be16); | |
1517 | break; | |
1518 | ||
8e53fe8c JS |
1519 | case MFF_CT_MARK: |
1520 | flow->ct_mark = ntohl(value->be32); | |
1521 | break; | |
1522 | ||
9daf2348 | 1523 | case MFF_CT_LABEL: |
32ea15f6 | 1524 | flow->ct_label = ntoh128(value->be128); |
9daf2348 JS |
1525 | break; |
1526 | ||
daf4d3c1 JR |
1527 | case MFF_CT_NW_PROTO: |
1528 | flow->ct_nw_proto = value->u8; | |
1529 | break; | |
1530 | ||
1531 | case MFF_CT_NW_SRC: | |
1532 | flow->ct_nw_src = value->be32; | |
1533 | break; | |
1534 | ||
1535 | case MFF_CT_NW_DST: | |
1536 | flow->ct_nw_dst = value->be32; | |
1537 | break; | |
1538 | ||
1539 | case MFF_CT_IPV6_SRC: | |
1540 | flow->ct_ipv6_src = value->ipv6; | |
1541 | break; | |
1542 | ||
1543 | case MFF_CT_IPV6_DST: | |
1544 | flow->ct_ipv6_dst = value->ipv6; | |
1545 | break; | |
1546 | ||
1547 | case MFF_CT_TP_SRC: | |
1548 | flow->ct_tp_src = value->be16; | |
1549 | break; | |
1550 | ||
1551 | case MFF_CT_TP_DST: | |
1552 | flow->ct_tp_dst = value->be16; | |
1553 | break; | |
1554 | ||
0d7e2fe4 | 1555 | CASE_MFF_REGS: |
28da1f8f BP |
1556 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1557 | break; | |
28da1f8f | 1558 | |
79fe0f46 BP |
1559 | CASE_MFF_XREGS: |
1560 | flow_set_xreg(flow, mf->id - MFF_XREG0, ntohll(value->be64)); | |
1561 | break; | |
1562 | ||
b23ada8e JP |
1563 | CASE_MFF_XXREGS: |
1564 | flow_set_xxreg(flow, mf->id - MFF_XXREG0, ntoh128(value->be128)); | |
1565 | break; | |
1566 | ||
28da1f8f | 1567 | case MFF_ETH_SRC: |
74ff3298 | 1568 | flow->dl_src = value->mac; |
28da1f8f BP |
1569 | break; |
1570 | ||
1571 | case MFF_ETH_DST: | |
74ff3298 | 1572 | flow->dl_dst = value->mac; |
28da1f8f BP |
1573 | break; |
1574 | ||
1575 | case MFF_ETH_TYPE: | |
1576 | flow->dl_type = value->be16; | |
1577 | break; | |
1578 | ||
1579 | case MFF_VLAN_TCI: | |
f0fb825a EG |
1580 | flow->vlans[0].tci = value->be16; |
1581 | flow_fix_vlan_tpid(flow); | |
28da1f8f BP |
1582 | break; |
1583 | ||
441c57a9 | 1584 | case MFF_DL_VLAN: |
2f9366be | 1585 | flow_set_dl_vlan(flow, value->be16, 0); |
f0fb825a | 1586 | flow_fix_vlan_tpid(flow); |
28da1f8f | 1587 | break; |
f0fb825a | 1588 | |
cc34bc8c BP |
1589 | case MFF_VLAN_VID: |
1590 | flow_set_vlan_vid(flow, value->be16); | |
f0fb825a | 1591 | flow_fix_vlan_tpid(flow); |
cc34bc8c | 1592 | break; |
28da1f8f | 1593 | |
441c57a9 | 1594 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1595 | case MFF_VLAN_PCP: |
2f9366be | 1596 | flow_set_vlan_pcp(flow, value->u8, 0); |
f0fb825a | 1597 | flow_fix_vlan_tpid(flow); |
28da1f8f BP |
1598 | break; |
1599 | ||
b02475c5 | 1600 | case MFF_MPLS_LABEL: |
8bfd0fda | 1601 | flow_set_mpls_label(flow, 0, value->be32); |
b02475c5 SH |
1602 | break; |
1603 | ||
1604 | case MFF_MPLS_TC: | |
8bfd0fda | 1605 | flow_set_mpls_tc(flow, 0, value->u8); |
b02475c5 SH |
1606 | break; |
1607 | ||
1608 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1609 | flow_set_mpls_bos(flow, 0, value->u8); |
1610 | break; | |
b02475c5 | 1611 | |
bef3f465 BP |
1612 | case MFF_MPLS_TTL: |
1613 | flow_set_mpls_ttl(flow, 0, value->u8); | |
1614 | break; | |
1615 | ||
28da1f8f BP |
1616 | case MFF_IPV4_SRC: |
1617 | flow->nw_src = value->be32; | |
1618 | break; | |
1619 | ||
1620 | case MFF_IPV4_DST: | |
1621 | flow->nw_dst = value->be32; | |
1622 | break; | |
1623 | ||
1624 | case MFF_IPV6_SRC: | |
1625 | flow->ipv6_src = value->ipv6; | |
1626 | break; | |
1627 | ||
1628 | case MFF_IPV6_DST: | |
1629 | flow->ipv6_dst = value->ipv6; | |
1630 | break; | |
1631 | ||
1632 | case MFF_IPV6_LABEL: | |
88cc95c1 | 1633 | flow->ipv6_label = value->be32 & htonl(IPV6_LABEL_MASK); |
28da1f8f BP |
1634 | break; |
1635 | ||
1636 | case MFF_IP_PROTO: | |
1637 | flow->nw_proto = value->u8; | |
1638 | break; | |
1639 | ||
1640 | case MFF_IP_DSCP: | |
1641 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1642 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1643 | break; | |
1644 | ||
1638b906 BP |
1645 | case MFF_IP_DSCP_SHIFTED: |
1646 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1647 | flow->nw_tos |= value->u8 << 2; | |
1648 | break; | |
1649 | ||
28da1f8f BP |
1650 | case MFF_IP_ECN: |
1651 | flow->nw_tos &= ~IP_ECN_MASK; | |
1652 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1653 | break; | |
1654 | ||
1655 | case MFF_IP_TTL: | |
1656 | flow->nw_ttl = value->u8; | |
1657 | break; | |
1658 | ||
1659 | case MFF_IP_FRAG: | |
c8abb8af | 1660 | flow->nw_frag = value->u8 & FLOW_NW_FRAG_MASK; |
28da1f8f BP |
1661 | break; |
1662 | ||
1663 | case MFF_ARP_OP: | |
1664 | flow->nw_proto = ntohs(value->be16); | |
1665 | break; | |
1666 | ||
1667 | case MFF_ARP_SPA: | |
1668 | flow->nw_src = value->be32; | |
1669 | break; | |
1670 | ||
1671 | case MFF_ARP_TPA: | |
1672 | flow->nw_dst = value->be32; | |
1673 | break; | |
1674 | ||
1675 | case MFF_ARP_SHA: | |
1676 | case MFF_ND_SLL: | |
74ff3298 | 1677 | flow->arp_sha = value->mac; |
28da1f8f BP |
1678 | break; |
1679 | ||
1680 | case MFF_ARP_THA: | |
1681 | case MFF_ND_TLL: | |
74ff3298 | 1682 | flow->arp_tha = value->mac; |
28da1f8f BP |
1683 | break; |
1684 | ||
1685 | case MFF_TCP_SRC: | |
1686 | case MFF_UDP_SRC: | |
0d56eaf2 | 1687 | case MFF_SCTP_SRC: |
28da1f8f BP |
1688 | flow->tp_src = value->be16; |
1689 | break; | |
1690 | ||
1691 | case MFF_TCP_DST: | |
1692 | case MFF_UDP_DST: | |
0d56eaf2 | 1693 | case MFF_SCTP_DST: |
28da1f8f BP |
1694 | flow->tp_dst = value->be16; |
1695 | break; | |
1696 | ||
dc235f7f JR |
1697 | case MFF_TCP_FLAGS: |
1698 | flow->tcp_flags = value->be16; | |
1699 | break; | |
1700 | ||
28da1f8f BP |
1701 | case MFF_ICMPV4_TYPE: |
1702 | case MFF_ICMPV6_TYPE: | |
1703 | flow->tp_src = htons(value->u8); | |
1704 | break; | |
1705 | ||
1706 | case MFF_ICMPV4_CODE: | |
1707 | case MFF_ICMPV6_CODE: | |
1708 | flow->tp_dst = htons(value->u8); | |
1709 | break; | |
1710 | ||
1711 | case MFF_ND_TARGET: | |
1712 | flow->nd_target = value->ipv6; | |
1713 | break; | |
1714 | ||
9b2b8497 VDA |
1715 | case MFF_ND_RESERVED: |
1716 | flow->igmp_group_ip4 = value->be32; | |
1717 | break; | |
1718 | ||
1719 | case MFF_ND_OPTIONS_TYPE: | |
1720 | flow->tcp_flags = htons(value->u8); | |
1721 | break; | |
1722 | ||
3d2fbd70 JS |
1723 | case MFF_NSH_FLAGS: |
1724 | flow->nsh.flags = value->u8; | |
1725 | break; | |
17553f27 YY |
1726 | case MFF_NSH_TTL: |
1727 | flow->nsh.ttl = value->u8; | |
1728 | break; | |
3d2fbd70 JS |
1729 | case MFF_NSH_MDTYPE: |
1730 | flow->nsh.mdtype = value->u8; | |
1731 | break; | |
1732 | case MFF_NSH_NP: | |
1733 | flow->nsh.np = value->u8; | |
1734 | break; | |
1735 | case MFF_NSH_SPI: | |
17553f27 | 1736 | nsh_path_hdr_set_spi(&flow->nsh.path_hdr, value->be32); |
3d2fbd70 JS |
1737 | break; |
1738 | case MFF_NSH_SI: | |
17553f27 | 1739 | nsh_path_hdr_set_si(&flow->nsh.path_hdr, value->u8); |
3d2fbd70 JS |
1740 | break; |
1741 | case MFF_NSH_C1: | |
1742 | case MFF_NSH_C2: | |
1743 | case MFF_NSH_C3: | |
1744 | case MFF_NSH_C4: | |
f59cb331 | 1745 | flow->nsh.context[mf->id - MFF_NSH_C1] = value->be32; |
3d2fbd70 JS |
1746 | break; |
1747 | ||
28da1f8f BP |
1748 | case MFF_N_IDS: |
1749 | default: | |
428b2edd | 1750 | OVS_NOT_REACHED(); |
28da1f8f BP |
1751 | } |
1752 | } | |
1753 | ||
7eb4b1f1 BP |
1754 | /* Consider each of 'src', 'mask', and 'dst' as if they were arrays of 8*n |
1755 | * bits. Then, for each 0 <= i < 8 * n such that mask[i] == 1, sets dst[i] = | |
1756 | * src[i]. */ | |
1757 | static void | |
1758 | apply_mask(const uint8_t *src, const uint8_t *mask, uint8_t *dst, size_t n) | |
1759 | { | |
1760 | size_t i; | |
1761 | ||
1762 | for (i = 0; i < n; i++) { | |
1763 | dst[i] = (src[i] & mask[i]) | (dst[i] & ~mask[i]); | |
1764 | } | |
1765 | } | |
1766 | ||
1767 | /* Sets 'flow' member field described by 'field' to 'value', except that bits | |
1768 | * for which 'mask' has a 0-bit keep their existing values. The caller is | |
1769 | * responsible for ensuring that 'flow' meets 'field''s prerequisites.*/ | |
1770 | void | |
1771 | mf_set_flow_value_masked(const struct mf_field *field, | |
1772 | const union mf_value *value, | |
1773 | const union mf_value *mask, | |
1774 | struct flow *flow) | |
1775 | { | |
1776 | union mf_value tmp; | |
1777 | ||
1778 | mf_get_value(field, flow, &tmp); | |
1779 | apply_mask((const uint8_t *) value, (const uint8_t *) mask, | |
1780 | (uint8_t *) &tmp, field->n_bytes); | |
1781 | mf_set_flow_value(field, &tmp, flow); | |
1782 | } | |
1783 | ||
1cb20095 JG |
1784 | bool |
1785 | mf_is_tun_metadata(const struct mf_field *mf) | |
1786 | { | |
1787 | return mf->id >= MFF_TUN_METADATA0 && | |
1788 | mf->id < MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS; | |
1789 | } | |
1790 | ||
d7892c81 YHW |
1791 | bool |
1792 | mf_is_pipeline_field(const struct mf_field *mf) | |
1793 | { | |
1794 | switch (mf->id) { | |
1795 | case MFF_TUN_ID: | |
1796 | case MFF_TUN_SRC: | |
1797 | case MFF_TUN_DST: | |
1798 | case MFF_TUN_IPV6_SRC: | |
1799 | case MFF_TUN_IPV6_DST: | |
1800 | case MFF_TUN_FLAGS: | |
1801 | case MFF_TUN_GBP_ID: | |
1802 | case MFF_TUN_GBP_FLAGS: | |
7dc18ae9 WT |
1803 | case MFF_TUN_ERSPAN_VER: |
1804 | case MFF_TUN_ERSPAN_IDX: | |
1805 | case MFF_TUN_ERSPAN_DIR: | |
1806 | case MFF_TUN_ERSPAN_HWID: | |
3c6d05a0 WT |
1807 | case MFF_TUN_GTPU_FLAGS: |
1808 | case MFF_TUN_GTPU_MSGTYPE: | |
d7892c81 YHW |
1809 | CASE_MFF_TUN_METADATA: |
1810 | case MFF_METADATA: | |
1811 | case MFF_IN_PORT: | |
1812 | case MFF_IN_PORT_OXM: | |
1813 | CASE_MFF_REGS: | |
1814 | CASE_MFF_XREGS: | |
1815 | CASE_MFF_XXREGS: | |
3d4b2e6e | 1816 | case MFF_PACKET_TYPE: |
d7892c81 YHW |
1817 | return true; |
1818 | ||
1819 | case MFF_DP_HASH: | |
1820 | case MFF_RECIRC_ID: | |
1821 | case MFF_CONJ_ID: | |
1822 | case MFF_TUN_TTL: | |
1823 | case MFF_TUN_TOS: | |
1824 | case MFF_ACTSET_OUTPUT: | |
1825 | case MFF_SKB_PRIORITY: | |
1826 | case MFF_PKT_MARK: | |
1827 | case MFF_CT_STATE: | |
1828 | case MFF_CT_ZONE: | |
1829 | case MFF_CT_MARK: | |
1830 | case MFF_CT_LABEL: | |
1831 | case MFF_CT_NW_PROTO: | |
1832 | case MFF_CT_NW_SRC: | |
1833 | case MFF_CT_NW_DST: | |
1834 | case MFF_CT_IPV6_SRC: | |
1835 | case MFF_CT_IPV6_DST: | |
1836 | case MFF_CT_TP_SRC: | |
1837 | case MFF_CT_TP_DST: | |
1838 | case MFF_ETH_SRC: | |
1839 | case MFF_ETH_DST: | |
1840 | case MFF_ETH_TYPE: | |
1841 | case MFF_VLAN_TCI: | |
1842 | case MFF_DL_VLAN: | |
1843 | case MFF_VLAN_VID: | |
1844 | case MFF_DL_VLAN_PCP: | |
1845 | case MFF_VLAN_PCP: | |
1846 | case MFF_MPLS_LABEL: | |
1847 | case MFF_MPLS_TC: | |
1848 | case MFF_MPLS_BOS: | |
1849 | case MFF_MPLS_TTL: | |
1850 | case MFF_IPV4_SRC: | |
1851 | case MFF_IPV4_DST: | |
1852 | case MFF_IPV6_SRC: | |
1853 | case MFF_IPV6_DST: | |
1854 | case MFF_IPV6_LABEL: | |
1855 | case MFF_IP_PROTO: | |
1856 | case MFF_IP_DSCP: | |
1857 | case MFF_IP_DSCP_SHIFTED: | |
1858 | case MFF_IP_ECN: | |
1859 | case MFF_IP_TTL: | |
1860 | case MFF_IP_FRAG: | |
1861 | case MFF_ARP_OP: | |
1862 | case MFF_ARP_SPA: | |
1863 | case MFF_ARP_TPA: | |
1864 | case MFF_ARP_SHA: | |
1865 | case MFF_ARP_THA: | |
1866 | case MFF_TCP_SRC: | |
1867 | case MFF_TCP_DST: | |
1868 | case MFF_TCP_FLAGS: | |
1869 | case MFF_UDP_SRC: | |
1870 | case MFF_UDP_DST: | |
1871 | case MFF_SCTP_SRC: | |
1872 | case MFF_SCTP_DST: | |
1873 | case MFF_ICMPV4_TYPE: | |
1874 | case MFF_ICMPV4_CODE: | |
1875 | case MFF_ICMPV6_TYPE: | |
1876 | case MFF_ICMPV6_CODE: | |
1877 | case MFF_ND_TARGET: | |
1878 | case MFF_ND_SLL: | |
1879 | case MFF_ND_TLL: | |
9b2b8497 VDA |
1880 | case MFF_ND_RESERVED: |
1881 | case MFF_ND_OPTIONS_TYPE: | |
3d2fbd70 | 1882 | case MFF_NSH_FLAGS: |
17553f27 | 1883 | case MFF_NSH_TTL: |
3d2fbd70 JS |
1884 | case MFF_NSH_MDTYPE: |
1885 | case MFF_NSH_NP: | |
1886 | case MFF_NSH_SPI: | |
1887 | case MFF_NSH_SI: | |
1888 | case MFF_NSH_C1: | |
1889 | case MFF_NSH_C2: | |
1890 | case MFF_NSH_C3: | |
1891 | case MFF_NSH_C4: | |
d7892c81 YHW |
1892 | return false; |
1893 | ||
1894 | case MFF_N_IDS: | |
1895 | default: | |
1896 | OVS_NOT_REACHED(); | |
1897 | } | |
1898 | } | |
1899 | ||
1cb20095 JG |
1900 | /* Returns true if 'mf' has previously been set in 'flow', false if |
1901 | * it contains a non-default value. | |
ccbe50f8 BP |
1902 | * |
1903 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1904 | * prerequisites. */ | |
1905 | bool | |
1cb20095 | 1906 | mf_is_set(const struct mf_field *mf, const struct flow *flow) |
ccbe50f8 | 1907 | { |
1cb20095 JG |
1908 | if (!mf_is_tun_metadata(mf)) { |
1909 | union mf_value value; | |
ccbe50f8 | 1910 | |
1cb20095 JG |
1911 | mf_get_value(mf, flow, &value); |
1912 | return !is_all_zeros(&value, mf->n_bytes); | |
1913 | } else { | |
1914 | return ULLONG_GET(flow->tunnel.metadata.present.map, | |
1915 | mf->id - MFF_TUN_METADATA0); | |
1916 | } | |
ccbe50f8 BP |
1917 | } |
1918 | ||
81a76618 | 1919 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1920 | * |
81a76618 | 1921 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
4f7b100c JG |
1922 | * prerequisites. |
1923 | * | |
1924 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
1925 | * with the request or NULL if there is no error. The caller is reponsible | |
1926 | * for freeing the string. */ | |
6a885fd0 | 1927 | void |
4f7b100c | 1928 | mf_set_wild(const struct mf_field *mf, struct match *match, char **err_str) |
6a885fd0 | 1929 | { |
4f7b100c JG |
1930 | if (err_str) { |
1931 | *err_str = NULL; | |
1932 | } | |
1933 | ||
6a885fd0 | 1934 | switch (mf->id) { |
a79f29f2 AZ |
1935 | case MFF_DP_HASH: |
1936 | match->flow.dp_hash = 0; | |
1937 | match->wc.masks.dp_hash = 0; | |
1938 | break; | |
1939 | case MFF_RECIRC_ID: | |
1940 | match->flow.recirc_id = 0; | |
1941 | match->wc.masks.recirc_id = 0; | |
1942 | break; | |
3d4b2e6e JS |
1943 | case MFF_PACKET_TYPE: |
1944 | match->flow.packet_type = 0; | |
1945 | match->wc.masks.packet_type = 0; | |
1946 | break; | |
18080541 BP |
1947 | case MFF_CONJ_ID: |
1948 | match->flow.conj_id = 0; | |
1949 | match->wc.masks.conj_id = 0; | |
1950 | break; | |
6a885fd0 | 1951 | case MFF_TUN_ID: |
81a76618 | 1952 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1953 | break; |
4fe3445a PS |
1954 | case MFF_TUN_SRC: |
1955 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1956 | break; | |
1957 | case MFF_TUN_DST: | |
1958 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1959 | break; | |
7dad8e9a TLSC |
1960 | case MFF_TUN_IPV6_SRC: |
1961 | memset(&match->wc.masks.tunnel.ipv6_src, 0, | |
1962 | sizeof match->wc.masks.tunnel.ipv6_src); | |
1963 | memset(&match->flow.tunnel.ipv6_src, 0, | |
1964 | sizeof match->flow.tunnel.ipv6_src); | |
1965 | break; | |
1966 | case MFF_TUN_IPV6_DST: | |
1967 | memset(&match->wc.masks.tunnel.ipv6_dst, 0, | |
1968 | sizeof match->wc.masks.tunnel.ipv6_dst); | |
1969 | memset(&match->flow.tunnel.ipv6_dst, 0, | |
1970 | sizeof match->flow.tunnel.ipv6_dst); | |
1971 | break; | |
4fe3445a PS |
1972 | case MFF_TUN_FLAGS: |
1973 | match_set_tun_flags_masked(match, 0, 0); | |
1974 | break; | |
ac6073e3 MC |
1975 | case MFF_TUN_GBP_ID: |
1976 | match_set_tun_gbp_id_masked(match, 0, 0); | |
1977 | break; | |
1978 | case MFF_TUN_GBP_FLAGS: | |
1979 | match_set_tun_gbp_flags_masked(match, 0, 0); | |
1980 | break; | |
4fe3445a PS |
1981 | case MFF_TUN_TOS: |
1982 | match_set_tun_tos_masked(match, 0, 0); | |
1983 | break; | |
1984 | case MFF_TUN_TTL: | |
1985 | match_set_tun_ttl_masked(match, 0, 0); | |
1986 | break; | |
7dc18ae9 WT |
1987 | case MFF_TUN_ERSPAN_VER: |
1988 | match_set_tun_erspan_ver_masked(match, 0, 0); | |
1989 | break; | |
1990 | case MFF_TUN_ERSPAN_IDX: | |
1991 | match_set_tun_erspan_idx_masked(match, 0, 0); | |
1992 | break; | |
1993 | case MFF_TUN_ERSPAN_DIR: | |
1994 | match_set_tun_erspan_dir_masked(match, 0, 0); | |
1995 | break; | |
1996 | case MFF_TUN_ERSPAN_HWID: | |
1997 | match_set_tun_erspan_hwid_masked(match, 0, 0); | |
1998 | break; | |
3c6d05a0 WT |
1999 | case MFF_TUN_GTPU_FLAGS: |
2000 | match_set_tun_gtpu_flags_masked(match, 0, 0); | |
2001 | break; | |
2002 | case MFF_TUN_GTPU_MSGTYPE: | |
2003 | match_set_tun_gtpu_msgtype_masked(match, 0, 0); | |
2004 | break; | |
9558d2a5 | 2005 | CASE_MFF_TUN_METADATA: |
4f7b100c | 2006 | tun_metadata_set_match(mf, NULL, NULL, match, err_str); |
9558d2a5 | 2007 | break; |
4fe3445a | 2008 | |
969fc56c | 2009 | case MFF_METADATA: |
81a76618 | 2010 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 2011 | break; |
6a885fd0 BP |
2012 | |
2013 | case MFF_IN_PORT: | |
72333065 | 2014 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
2015 | match->flow.in_port.ofp_port = 0; |
2016 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 | 2017 | break; |
c61f3870 BP |
2018 | case MFF_ACTSET_OUTPUT: |
2019 | match->flow.actset_output = 0; | |
2020 | match->wc.masks.actset_output = 0; | |
2021 | break; | |
6a885fd0 | 2022 | |
1b567fb9 AA |
2023 | case MFF_SKB_PRIORITY: |
2024 | match->flow.skb_priority = 0; | |
2025 | match->wc.masks.skb_priority = 0; | |
2026 | break; | |
2027 | ||
1362e248 JG |
2028 | case MFF_PKT_MARK: |
2029 | match->flow.pkt_mark = 0; | |
2030 | match->wc.masks.pkt_mark = 0; | |
1b567fb9 AA |
2031 | break; |
2032 | ||
07659514 JS |
2033 | case MFF_CT_STATE: |
2034 | match->flow.ct_state = 0; | |
2035 | match->wc.masks.ct_state = 0; | |
2036 | break; | |
2037 | ||
2038 | case MFF_CT_ZONE: | |
2039 | match->flow.ct_zone = 0; | |
2040 | match->wc.masks.ct_zone = 0; | |
2041 | break; | |
2042 | ||
8e53fe8c JS |
2043 | case MFF_CT_MARK: |
2044 | match->flow.ct_mark = 0; | |
2045 | match->wc.masks.ct_mark = 0; | |
2046 | break; | |
2047 | ||
9daf2348 JS |
2048 | case MFF_CT_LABEL: |
2049 | memset(&match->flow.ct_label, 0, sizeof(match->flow.ct_label)); | |
2050 | memset(&match->wc.masks.ct_label, 0, sizeof(match->wc.masks.ct_label)); | |
2051 | break; | |
2052 | ||
daf4d3c1 JR |
2053 | case MFF_CT_NW_PROTO: |
2054 | match->flow.ct_nw_proto = 0; | |
2055 | match->wc.masks.ct_nw_proto = 0; | |
2056 | break; | |
2057 | ||
2058 | case MFF_CT_NW_SRC: | |
2059 | match->flow.ct_nw_src = 0; | |
2060 | match->wc.masks.ct_nw_src = 0; | |
2061 | break; | |
2062 | ||
2063 | case MFF_CT_NW_DST: | |
2064 | match->flow.ct_nw_dst = 0; | |
2065 | match->wc.masks.ct_nw_dst = 0; | |
2066 | break; | |
2067 | ||
2068 | case MFF_CT_IPV6_SRC: | |
2069 | memset(&match->flow.ct_ipv6_src, 0, sizeof(match->flow.ct_ipv6_src)); | |
2070 | WC_UNMASK_FIELD(&match->wc, ct_ipv6_src); | |
2071 | break; | |
2072 | ||
2073 | case MFF_CT_IPV6_DST: | |
2074 | memset(&match->flow.ct_ipv6_dst, 0, sizeof(match->flow.ct_ipv6_dst)); | |
2075 | WC_UNMASK_FIELD(&match->wc, ct_ipv6_dst); | |
2076 | break; | |
2077 | ||
2078 | case MFF_CT_TP_SRC: | |
2079 | match->flow.ct_tp_src = 0; | |
2080 | match->wc.masks.ct_tp_src = 0; | |
2081 | break; | |
2082 | ||
2083 | case MFF_CT_TP_DST: | |
2084 | match->flow.ct_tp_dst = 0; | |
2085 | match->wc.masks.ct_tp_dst = 0; | |
2086 | break; | |
2087 | ||
0d7e2fe4 | 2088 | CASE_MFF_REGS: |
81a76618 | 2089 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 2090 | break; |
6a885fd0 | 2091 | |
79fe0f46 BP |
2092 | CASE_MFF_XREGS: |
2093 | match_set_xreg_masked(match, mf->id - MFF_XREG0, 0, 0); | |
2094 | break; | |
2095 | ||
b23ada8e JP |
2096 | CASE_MFF_XXREGS: { |
2097 | match_set_xxreg_masked(match, mf->id - MFF_XXREG0, OVS_U128_ZERO, | |
2098 | OVS_U128_ZERO); | |
2099 | break; | |
2100 | } | |
2101 | ||
6a885fd0 | 2102 | case MFF_ETH_SRC: |
74ff3298 JR |
2103 | match->flow.dl_src = eth_addr_zero; |
2104 | match->wc.masks.dl_src = eth_addr_zero; | |
6a885fd0 BP |
2105 | break; |
2106 | ||
2107 | case MFF_ETH_DST: | |
74ff3298 JR |
2108 | match->flow.dl_dst = eth_addr_zero; |
2109 | match->wc.masks.dl_dst = eth_addr_zero; | |
6a885fd0 BP |
2110 | break; |
2111 | ||
2112 | case MFF_ETH_TYPE: | |
81a76618 BP |
2113 | match->flow.dl_type = htons(0); |
2114 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
2115 | break; |
2116 | ||
2117 | case MFF_VLAN_TCI: | |
81a76618 | 2118 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
2119 | break; |
2120 | ||
441c57a9 | 2121 | case MFF_DL_VLAN: |
cc34bc8c | 2122 | case MFF_VLAN_VID: |
81a76618 | 2123 | match_set_any_vid(match); |
6a885fd0 BP |
2124 | break; |
2125 | ||
441c57a9 | 2126 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 2127 | case MFF_VLAN_PCP: |
81a76618 | 2128 | match_set_any_pcp(match); |
6a885fd0 BP |
2129 | break; |
2130 | ||
b02475c5 | 2131 | case MFF_MPLS_LABEL: |
8bfd0fda | 2132 | match_set_any_mpls_label(match, 0); |
b02475c5 SH |
2133 | break; |
2134 | ||
2135 | case MFF_MPLS_TC: | |
8bfd0fda | 2136 | match_set_any_mpls_tc(match, 0); |
b02475c5 SH |
2137 | break; |
2138 | ||
2139 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
2140 | match_set_any_mpls_bos(match, 0); |
2141 | break; | |
b02475c5 | 2142 | |
bef3f465 BP |
2143 | case MFF_MPLS_TTL: |
2144 | match_set_any_mpls_ttl(match, 0); | |
2145 | break; | |
2146 | ||
6a885fd0 BP |
2147 | case MFF_IPV4_SRC: |
2148 | case MFF_ARP_SPA: | |
81a76618 | 2149 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
2150 | break; |
2151 | ||
2152 | case MFF_IPV4_DST: | |
2153 | case MFF_ARP_TPA: | |
81a76618 | 2154 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
2155 | break; |
2156 | ||
2157 | case MFF_IPV6_SRC: | |
81a76618 BP |
2158 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
2159 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
2160 | break; |
2161 | ||
2162 | case MFF_IPV6_DST: | |
81a76618 BP |
2163 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
2164 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
2165 | break; |
2166 | ||
fa8223b7 | 2167 | case MFF_IPV6_LABEL: |
81a76618 BP |
2168 | match->wc.masks.ipv6_label = htonl(0); |
2169 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
2170 | break; |
2171 | ||
6a885fd0 | 2172 | case MFF_IP_PROTO: |
81a76618 BP |
2173 | match->wc.masks.nw_proto = 0; |
2174 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
2175 | break; |
2176 | ||
530180fd | 2177 | case MFF_IP_DSCP: |
1638b906 | 2178 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
2179 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
2180 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
2181 | break; |
2182 | ||
530180fd | 2183 | case MFF_IP_ECN: |
81a76618 BP |
2184 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
2185 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
2186 | break; |
2187 | ||
a61680c6 | 2188 | case MFF_IP_TTL: |
81a76618 BP |
2189 | match->wc.masks.nw_ttl = 0; |
2190 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
2191 | break; |
2192 | ||
7257b535 | 2193 | case MFF_IP_FRAG: |
6ca49d5e | 2194 | match->wc.masks.nw_frag &= ~FLOW_NW_FRAG_MASK; |
81a76618 | 2195 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; |
6a885fd0 BP |
2196 | break; |
2197 | ||
2198 | case MFF_ARP_OP: | |
81a76618 BP |
2199 | match->wc.masks.nw_proto = 0; |
2200 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
2201 | break; |
2202 | ||
2203 | case MFF_ARP_SHA: | |
2204 | case MFF_ND_SLL: | |
74ff3298 JR |
2205 | match->flow.arp_sha = eth_addr_zero; |
2206 | match->wc.masks.arp_sha = eth_addr_zero; | |
6a885fd0 BP |
2207 | break; |
2208 | ||
2209 | case MFF_ARP_THA: | |
2210 | case MFF_ND_TLL: | |
74ff3298 JR |
2211 | match->flow.arp_tha = eth_addr_zero; |
2212 | match->wc.masks.arp_tha = eth_addr_zero; | |
6a885fd0 BP |
2213 | break; |
2214 | ||
9b2b8497 VDA |
2215 | case MFF_ND_RESERVED: |
2216 | match->wc.masks.igmp_group_ip4 = htonl(0); | |
2217 | match->flow.igmp_group_ip4 = htonl(0); | |
2218 | break; | |
2219 | ||
6a885fd0 BP |
2220 | case MFF_TCP_SRC: |
2221 | case MFF_UDP_SRC: | |
0d56eaf2 | 2222 | case MFF_SCTP_SRC: |
268a95e0 BP |
2223 | case MFF_ICMPV4_TYPE: |
2224 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
2225 | match->wc.masks.tp_src = htons(0); |
2226 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
2227 | break; |
2228 | ||
2229 | case MFF_TCP_DST: | |
2230 | case MFF_UDP_DST: | |
0d56eaf2 | 2231 | case MFF_SCTP_DST: |
268a95e0 BP |
2232 | case MFF_ICMPV4_CODE: |
2233 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
2234 | match->wc.masks.tp_dst = htons(0); |
2235 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
2236 | break; |
2237 | ||
dc235f7f | 2238 | case MFF_TCP_FLAGS: |
9b2b8497 | 2239 | case MFF_ND_OPTIONS_TYPE: |
dc235f7f JR |
2240 | match->wc.masks.tcp_flags = htons(0); |
2241 | match->flow.tcp_flags = htons(0); | |
2242 | break; | |
2243 | ||
6a885fd0 | 2244 | case MFF_ND_TARGET: |
81a76618 BP |
2245 | memset(&match->wc.masks.nd_target, 0, |
2246 | sizeof match->wc.masks.nd_target); | |
2247 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
2248 | break; |
2249 | ||
3d2fbd70 JS |
2250 | case MFF_NSH_FLAGS: |
2251 | MATCH_SET_FIELD_MASKED(match, nsh.flags, 0, 0); | |
2252 | break; | |
17553f27 YY |
2253 | case MFF_NSH_TTL: |
2254 | MATCH_SET_FIELD_MASKED(match, nsh.ttl, 0, 0); | |
2255 | break; | |
3d2fbd70 JS |
2256 | case MFF_NSH_MDTYPE: |
2257 | MATCH_SET_FIELD_MASKED(match, nsh.mdtype, 0, 0); | |
2258 | break; | |
2259 | case MFF_NSH_NP: | |
2260 | MATCH_SET_FIELD_MASKED(match, nsh.np, 0, 0); | |
2261 | break; | |
2262 | case MFF_NSH_SPI: | |
17553f27 YY |
2263 | match->wc.masks.nsh.path_hdr &= ~htonl(NSH_SPI_MASK); |
2264 | nsh_path_hdr_set_spi(&match->flow.nsh.path_hdr, htonl(0)); | |
3d2fbd70 JS |
2265 | break; |
2266 | case MFF_NSH_SI: | |
17553f27 YY |
2267 | match->wc.masks.nsh.path_hdr &= ~htonl(NSH_SI_MASK); |
2268 | nsh_path_hdr_set_si(&match->flow.nsh.path_hdr, 0); | |
3d2fbd70 JS |
2269 | break; |
2270 | case MFF_NSH_C1: | |
2271 | case MFF_NSH_C2: | |
2272 | case MFF_NSH_C3: | |
2273 | case MFF_NSH_C4: | |
f59cb331 | 2274 | MATCH_SET_FIELD_MASKED(match, nsh.context[mf->id - MFF_NSH_C1], |
3d2fbd70 JS |
2275 | htonl(0), htonl(0)); |
2276 | break; | |
2277 | ||
6a885fd0 BP |
2278 | case MFF_N_IDS: |
2279 | default: | |
428b2edd | 2280 | OVS_NOT_REACHED(); |
6a885fd0 BP |
2281 | } |
2282 | } | |
2283 | ||
81a76618 | 2284 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
2285 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
2286 | * with a 1-bit indicating that the corresponding value bit must match and a | |
2287 | * 0-bit indicating a don't-care. | |
2288 | * | |
2289 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
2290 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
2291 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
2292 | * |
2293 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
4f7b100c JG |
2294 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. |
2295 | * | |
2296 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
2297 | * with the request or NULL if there is no error. The caller is reponsible | |
1fd58977 JR |
2298 | * for freeing the string. |
2299 | * | |
2300 | * Return a set of enum ofputil_protocol bits (as an uint32_t to avoid circular | |
2301 | * dependency on enum ofputil_protocol definition) indicating which OpenFlow | |
2302 | * protocol versions can support this functionality. */ | |
2303 | uint32_t | |
6a885fd0 BP |
2304 | mf_set(const struct mf_field *mf, |
2305 | const union mf_value *value, const union mf_value *mask, | |
4f7b100c | 2306 | struct match *match, char **err_str) |
6a885fd0 | 2307 | { |
53cb9c3e | 2308 | if (!mask || is_all_ones(mask, mf->n_bytes)) { |
4f7b100c | 2309 | mf_set_value(mf, value, match, err_str); |
a4ce8b25 | 2310 | return mf->usable_protocols_exact; |
1cb20095 JG |
2311 | } else if (is_all_zeros(mask, mf->n_bytes) && !mf_is_tun_metadata(mf)) { |
2312 | /* Tunnel metadata matches on the existence of the field itself, so | |
2313 | * it still needs to be encoded even if the value is wildcarded. */ | |
4f7b100c | 2314 | mf_set_wild(mf, match, err_str); |
db0b6c29 | 2315 | return OFPUTIL_P_ANY; |
6a885fd0 BP |
2316 | } |
2317 | ||
4f7b100c JG |
2318 | if (err_str) { |
2319 | *err_str = NULL; | |
2320 | } | |
2321 | ||
c90656d4 BP |
2322 | /* The cases where 'mask' is all-1-bits or all-0-bits were already handled |
2323 | * above[*], so the code below only needs to work for the remaining cases | |
2324 | * of a nontrivial mask. | |
2325 | * | |
2326 | * [*] Except where the field is a tunnel metadata field and 'mask' is | |
2327 | * all-0-bits; see above. */ | |
6a885fd0 | 2328 | switch (mf->id) { |
07659514 | 2329 | case MFF_CT_ZONE: |
daf4d3c1 | 2330 | case MFF_CT_NW_PROTO: |
a79f29f2 | 2331 | case MFF_RECIRC_ID: |
3d4b2e6e | 2332 | case MFF_PACKET_TYPE: |
18080541 | 2333 | case MFF_CONJ_ID: |
6a885fd0 | 2334 | case MFF_IN_PORT: |
72333065 | 2335 | case MFF_IN_PORT_OXM: |
c61f3870 | 2336 | case MFF_ACTSET_OUTPUT: |
1b567fb9 | 2337 | case MFF_SKB_PRIORITY: |
6a885fd0 | 2338 | case MFF_ETH_TYPE: |
441c57a9 BP |
2339 | case MFF_DL_VLAN: |
2340 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 2341 | case MFF_VLAN_PCP: |
b02475c5 SH |
2342 | case MFF_MPLS_LABEL: |
2343 | case MFF_MPLS_TC: | |
2344 | case MFF_MPLS_BOS: | |
bef3f465 | 2345 | case MFF_MPLS_TTL: |
6a885fd0 | 2346 | case MFF_IP_PROTO: |
a61680c6 | 2347 | case MFF_IP_TTL: |
530180fd | 2348 | case MFF_IP_DSCP: |
1638b906 | 2349 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 2350 | case MFF_IP_ECN: |
6a885fd0 | 2351 | case MFF_ARP_OP: |
268a95e0 BP |
2352 | case MFF_ICMPV4_TYPE: |
2353 | case MFF_ICMPV4_CODE: | |
2354 | case MFF_ICMPV6_TYPE: | |
2355 | case MFF_ICMPV6_CODE: | |
9b2b8497 VDA |
2356 | case MFF_ND_RESERVED: |
2357 | case MFF_ND_OPTIONS_TYPE: | |
af69bf19 | 2358 | return OFPUTIL_P_NONE; |
6a885fd0 | 2359 | |
a79f29f2 AZ |
2360 | case MFF_DP_HASH: |
2361 | match_set_dp_hash_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
2362 | break; | |
6a885fd0 | 2363 | case MFF_TUN_ID: |
81a76618 | 2364 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 2365 | break; |
4fe3445a PS |
2366 | case MFF_TUN_SRC: |
2367 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
2368 | break; | |
2369 | case MFF_TUN_DST: | |
2370 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
2371 | break; | |
7dad8e9a TLSC |
2372 | case MFF_TUN_IPV6_SRC: |
2373 | match_set_tun_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); | |
2374 | break; | |
2375 | case MFF_TUN_IPV6_DST: | |
2376 | match_set_tun_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); | |
2377 | break; | |
4fe3445a PS |
2378 | case MFF_TUN_FLAGS: |
2379 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
2380 | break; | |
ac6073e3 MC |
2381 | case MFF_TUN_GBP_ID: |
2382 | match_set_tun_gbp_id_masked(match, value->be16, mask->be16); | |
2383 | break; | |
2384 | case MFF_TUN_GBP_FLAGS: | |
2385 | match_set_tun_gbp_flags_masked(match, value->u8, mask->u8); | |
2386 | break; | |
4fe3445a PS |
2387 | case MFF_TUN_TTL: |
2388 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
2389 | break; | |
2390 | case MFF_TUN_TOS: | |
2391 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
2392 | break; | |
7dc18ae9 WT |
2393 | case MFF_TUN_ERSPAN_VER: |
2394 | match_set_tun_erspan_ver_masked(match, value->u8, mask->u8); | |
2395 | break; | |
2396 | case MFF_TUN_ERSPAN_IDX: | |
2397 | match_set_tun_erspan_idx_masked(match, ntohl(value->be32), | |
2398 | ntohl(mask->be32)); | |
2399 | break; | |
2400 | case MFF_TUN_ERSPAN_DIR: | |
2401 | match_set_tun_erspan_dir_masked(match, value->u8, mask->u8); | |
2402 | break; | |
2403 | case MFF_TUN_ERSPAN_HWID: | |
2404 | match_set_tun_erspan_hwid_masked(match, value->u8, mask->u8); | |
2405 | break; | |
3c6d05a0 WT |
2406 | case MFF_TUN_GTPU_FLAGS: |
2407 | match_set_tun_gtpu_flags_masked(match, value->u8, mask->u8); | |
2408 | break; | |
2409 | case MFF_TUN_GTPU_MSGTYPE: | |
2410 | match_set_tun_gtpu_msgtype_masked(match, value->u8, mask->u8); | |
2411 | break; | |
9558d2a5 | 2412 | CASE_MFF_TUN_METADATA: |
4f7b100c | 2413 | tun_metadata_set_match(mf, value, mask, match, err_str); |
9558d2a5 | 2414 | break; |
4fe3445a | 2415 | |
969fc56c | 2416 | case MFF_METADATA: |
81a76618 | 2417 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 2418 | break; |
6a885fd0 | 2419 | |
0d7e2fe4 | 2420 | CASE_MFF_REGS: |
81a76618 BP |
2421 | match_set_reg_masked(match, mf->id - MFF_REG0, |
2422 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 | 2423 | break; |
ac923e91 | 2424 | |
79fe0f46 BP |
2425 | CASE_MFF_XREGS: |
2426 | match_set_xreg_masked(match, mf->id - MFF_XREG0, | |
2427 | ntohll(value->be64), ntohll(mask->be64)); | |
2428 | break; | |
2429 | ||
b23ada8e JP |
2430 | CASE_MFF_XXREGS: { |
2431 | match_set_xxreg_masked(match, mf->id - MFF_XXREG0, | |
2432 | ntoh128(value->be128), ntoh128(mask->be128)); | |
2433 | break; | |
2434 | } | |
2435 | ||
ac923e91 JG |
2436 | case MFF_PKT_MARK: |
2437 | match_set_pkt_mark_masked(match, ntohl(value->be32), | |
2438 | ntohl(mask->be32)); | |
2439 | break; | |
6a885fd0 | 2440 | |
07659514 JS |
2441 | case MFF_CT_STATE: |
2442 | match_set_ct_state_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
2443 | break; | |
2444 | ||
8e53fe8c JS |
2445 | case MFF_CT_MARK: |
2446 | match_set_ct_mark_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
2447 | break; | |
2448 | ||
32ea15f6 JP |
2449 | case MFF_CT_LABEL: |
2450 | match_set_ct_label_masked(match, ntoh128(value->be128), | |
964e01d1 | 2451 | ntoh128(mask->be128)); |
9daf2348 | 2452 | break; |
9daf2348 | 2453 | |
1740aaf4 YHW |
2454 | case MFF_CT_NW_SRC: |
2455 | match_set_ct_nw_src_masked(match, value->be32, mask->be32); | |
2456 | break; | |
2457 | ||
2458 | case MFF_CT_NW_DST: | |
2459 | match_set_ct_nw_dst_masked(match, value->be32, mask->be32); | |
2460 | break; | |
2461 | ||
2462 | case MFF_CT_IPV6_SRC: | |
2463 | match_set_ct_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); | |
2464 | break; | |
2465 | ||
2466 | case MFF_CT_IPV6_DST: | |
2467 | match_set_ct_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); | |
2468 | break; | |
2469 | ||
2470 | case MFF_CT_TP_SRC: | |
2471 | match_set_ct_tp_src_masked(match, value->be16, mask->be16); | |
2472 | break; | |
2473 | ||
2474 | case MFF_CT_TP_DST: | |
2475 | match_set_ct_tp_dst_masked(match, value->be16, mask->be16); | |
2476 | break; | |
2477 | ||
6a885fd0 | 2478 | case MFF_ETH_DST: |
81a76618 | 2479 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
2480 | break; |
2481 | ||
2482 | case MFF_ETH_SRC: | |
81a76618 | 2483 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
2484 | break; |
2485 | ||
e878338b SH |
2486 | case MFF_ARP_SHA: |
2487 | case MFF_ND_SLL: | |
81a76618 | 2488 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
2489 | break; |
2490 | ||
2491 | case MFF_ARP_THA: | |
2492 | case MFF_ND_TLL: | |
81a76618 | 2493 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
2494 | break; |
2495 | ||
6a885fd0 | 2496 | case MFF_VLAN_TCI: |
81a76618 | 2497 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
2498 | break; |
2499 | ||
cc34bc8c | 2500 | case MFF_VLAN_VID: |
81a76618 | 2501 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
2502 | break; |
2503 | ||
6a885fd0 | 2504 | case MFF_IPV4_SRC: |
81a76618 | 2505 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 2506 | break; |
6a885fd0 BP |
2507 | |
2508 | case MFF_IPV4_DST: | |
81a76618 | 2509 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 2510 | break; |
6a885fd0 BP |
2511 | |
2512 | case MFF_IPV6_SRC: | |
81a76618 | 2513 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
2514 | break; |
2515 | ||
2516 | case MFF_IPV6_DST: | |
81a76618 | 2517 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
2518 | break; |
2519 | ||
32455024 SH |
2520 | case MFF_IPV6_LABEL: |
2521 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
4f7b100c | 2522 | mf_set_value(mf, value, match, err_str); |
32455024 | 2523 | } else { |
81a76618 | 2524 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
2525 | } |
2526 | break; | |
2527 | ||
47284b1f | 2528 | case MFF_ND_TARGET: |
81a76618 | 2529 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
2530 | break; |
2531 | ||
7257b535 | 2532 | case MFF_IP_FRAG: |
81a76618 | 2533 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
2534 | break; |
2535 | ||
6a885fd0 | 2536 | case MFF_ARP_SPA: |
81a76618 | 2537 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 2538 | break; |
6a885fd0 BP |
2539 | |
2540 | case MFF_ARP_TPA: | |
81a76618 | 2541 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 2542 | break; |
6a885fd0 | 2543 | |
73f33563 BP |
2544 | case MFF_TCP_SRC: |
2545 | case MFF_UDP_SRC: | |
0d56eaf2 | 2546 | case MFF_SCTP_SRC: |
81a76618 | 2547 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
2548 | break; |
2549 | ||
2550 | case MFF_TCP_DST: | |
2551 | case MFF_UDP_DST: | |
0d56eaf2 | 2552 | case MFF_SCTP_DST: |
81a76618 | 2553 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
2554 | break; |
2555 | ||
dc235f7f JR |
2556 | case MFF_TCP_FLAGS: |
2557 | match_set_tcp_flags_masked(match, value->be16, mask->be16); | |
2558 | break; | |
2559 | ||
3d2fbd70 JS |
2560 | case MFF_NSH_FLAGS: |
2561 | MATCH_SET_FIELD_MASKED(match, nsh.flags, value->u8, mask->u8); | |
2562 | break; | |
17553f27 YY |
2563 | case MFF_NSH_TTL: |
2564 | MATCH_SET_FIELD_MASKED(match, nsh.ttl, value->u8, mask->u8); | |
2565 | break; | |
3d2fbd70 JS |
2566 | case MFF_NSH_MDTYPE: |
2567 | MATCH_SET_FIELD_MASKED(match, nsh.mdtype, value->u8, mask->u8); | |
2568 | break; | |
2569 | case MFF_NSH_NP: | |
2570 | MATCH_SET_FIELD_MASKED(match, nsh.np, value->u8, mask->u8); | |
2571 | break; | |
2572 | case MFF_NSH_SPI: | |
17553f27 YY |
2573 | match->wc.masks.nsh.path_hdr |= mask->be32; |
2574 | nsh_path_hdr_set_spi(&match->flow.nsh.path_hdr, | |
2575 | value->be32 & mask->be32); | |
3d2fbd70 JS |
2576 | break; |
2577 | case MFF_NSH_SI: | |
17553f27 YY |
2578 | match->wc.masks.nsh.path_hdr |= htonl(mask->u8); |
2579 | nsh_path_hdr_set_si(&match->flow.nsh.path_hdr, | |
2580 | value->u8 & mask->u8); | |
3d2fbd70 JS |
2581 | break; |
2582 | case MFF_NSH_C1: | |
2583 | case MFF_NSH_C2: | |
2584 | case MFF_NSH_C3: | |
2585 | case MFF_NSH_C4: | |
f59cb331 | 2586 | MATCH_SET_FIELD_MASKED(match, nsh.context[mf->id - MFF_NSH_C1], |
3d2fbd70 JS |
2587 | value->be32, mask->be32); |
2588 | break; | |
2589 | ||
6a885fd0 BP |
2590 | case MFF_N_IDS: |
2591 | default: | |
428b2edd | 2592 | OVS_NOT_REACHED(); |
6a885fd0 | 2593 | } |
db0b6c29 | 2594 | |
a4ce8b25 BP |
2595 | return ((mf->usable_protocols_bitwise == mf->usable_protocols_cidr |
2596 | || ip_is_cidr(mask->be32)) | |
2597 | ? mf->usable_protocols_cidr | |
2598 | : mf->usable_protocols_bitwise); | |
6a885fd0 BP |
2599 | } |
2600 | ||
816fd533 | 2601 | static enum ofperr |
67210a55 | 2602 | mf_check__(const struct mf_subfield *sf, const struct match *match, |
816fd533 | 2603 | const char *type) |
6a885fd0 | 2604 | { |
816fd533 BP |
2605 | if (!sf->field) { |
2606 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
9e404d1e | 2607 | return OFPERR_OFPBAC_BAD_SET_TYPE; |
816fd533 BP |
2608 | } else if (!sf->n_bits) { |
2609 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
9e404d1e | 2610 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
2611 | } else if (sf->ofs >= sf->field->n_bits) { |
2612 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
2613 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 2614 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
2615 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { |
2616 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
2617 | "of %s field %s", sf->ofs, sf->n_bits, | |
2618 | sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 2619 | return OFPERR_OFPBAC_BAD_SET_LEN; |
67210a55 | 2620 | } else if (match && !mf_are_match_prereqs_ok(sf->field, match)) { |
816fd533 BP |
2621 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", |
2622 | type, sf->field->name); | |
9e404d1e | 2623 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; |
6a885fd0 | 2624 | } else { |
816fd533 BP |
2625 | return 0; |
2626 | } | |
816fd533 | 2627 | } |
6a885fd0 | 2628 | |
67842eba BP |
2629 | /* Sets all the bits in 'sf' to 1 within 'wc', if 'wc' is nonnull. */ |
2630 | static void | |
2631 | unwildcard_subfield(const struct mf_subfield *sf, struct flow_wildcards *wc) | |
2632 | { | |
2633 | if (wc) { | |
2634 | union mf_value mask; | |
2635 | ||
2636 | memset(&mask, 0, sizeof mask); | |
2637 | bitwise_one(&mask, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2638 | mf_mask_field_masked(sf->field, &mask, wc); | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | /* Copies 'src' into 'dst' within 'flow', and sets all the bits in 'src' and | |
2643 | * 'dst' to 1s in 'wc', if 'wc' is nonnull. | |
2644 | * | |
2645 | * 'src' and 'dst' may overlap. */ | |
2646 | void | |
2647 | mf_subfield_copy(const struct mf_subfield *src, | |
2648 | const struct mf_subfield *dst, | |
2649 | struct flow *flow, struct flow_wildcards *wc) | |
2650 | { | |
2651 | ovs_assert(src->n_bits == dst->n_bits); | |
2652 | if (mf_are_prereqs_ok(dst->field, flow, wc) | |
2653 | && mf_are_prereqs_ok(src->field, flow, wc)) { | |
2654 | unwildcard_subfield(src, wc); | |
2655 | unwildcard_subfield(dst, wc); | |
2656 | ||
2657 | union mf_value src_value; | |
2658 | union mf_value dst_value; | |
2659 | mf_get_value(dst->field, flow, &dst_value); | |
2660 | mf_get_value(src->field, flow, &src_value); | |
2661 | bitwise_copy(&src_value, src->field->n_bytes, src->ofs, | |
2662 | &dst_value, dst->field->n_bytes, dst->ofs, | |
2663 | src->n_bits); | |
2664 | mf_set_flow_value(dst->field, &dst_value, flow); | |
2665 | } | |
2666 | } | |
2667 | ||
2668 | /* Swaps the bits in 'src' and 'dst' within 'flow', and sets all the bits in | |
2669 | * 'src' and 'dst' to 1s in 'wc', if 'wc' is nonnull. | |
2670 | * | |
2671 | * 'src' and 'dst' may overlap. */ | |
2672 | void | |
2673 | mf_subfield_swap(const struct mf_subfield *a, | |
2674 | const struct mf_subfield *b, | |
2675 | struct flow *flow, struct flow_wildcards *wc) | |
2676 | { | |
2677 | ovs_assert(a->n_bits == b->n_bits); | |
2678 | if (mf_are_prereqs_ok(a->field, flow, wc) | |
2679 | && mf_are_prereqs_ok(b->field, flow, wc)) { | |
2680 | unwildcard_subfield(a, wc); | |
2681 | unwildcard_subfield(b, wc); | |
2682 | ||
2683 | union mf_value a_value; | |
2684 | union mf_value b_value; | |
2685 | mf_get_value(a->field, flow, &a_value); | |
2686 | mf_get_value(b->field, flow, &b_value); | |
2687 | union mf_value b2_value = b_value; | |
2688 | ||
2689 | /* Copy 'a' into 'b'. */ | |
2690 | bitwise_copy(&a_value, a->field->n_bytes, a->ofs, | |
2691 | &b_value, b->field->n_bytes, b->ofs, | |
2692 | a->n_bits); | |
2693 | mf_set_flow_value(b->field, &b_value, flow); | |
2694 | ||
2695 | /* Copy original 'b' into 'a'. */ | |
2696 | bitwise_copy(&b2_value, b->field->n_bytes, b->ofs, | |
2697 | &a_value, a->field->n_bytes, a->ofs, | |
2698 | b->n_bits); | |
2699 | mf_set_flow_value(a->field, &a_value, flow); | |
2700 | } | |
2701 | } | |
2702 | ||
816fd533 BP |
2703 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
2704 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
2705 | * ofp_mkerr()). */ | |
2706 | enum ofperr | |
67210a55 | 2707 | mf_check_src(const struct mf_subfield *sf, const struct match *match) |
816fd533 | 2708 | { |
67210a55 | 2709 | return mf_check__(sf, match, "source"); |
816fd533 | 2710 | } |
6a885fd0 | 2711 | |
816fd533 BP |
2712 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
2713 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
2714 | * ofp_mkerr()). */ | |
2715 | enum ofperr | |
67210a55 | 2716 | mf_check_dst(const struct mf_subfield *sf, const struct match *match) |
816fd533 | 2717 | { |
67210a55 | 2718 | int error = mf_check__(sf, match, "destination"); |
816fd533 BP |
2719 | if (!error && !sf->field->writable) { |
2720 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
2721 | sf->field->name); | |
9e404d1e | 2722 | return OFPERR_OFPBAC_BAD_SET_ARGUMENT; |
6a885fd0 | 2723 | } |
816fd533 | 2724 | return error; |
6a885fd0 BP |
2725 | } |
2726 | ||
81a76618 | 2727 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
2728 | * 'value' and 'mask', respectively. */ |
2729 | void | |
81a76618 | 2730 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
2731 | union mf_value *value, union mf_value *mask) |
2732 | { | |
81a76618 BP |
2733 | mf_get_value(mf, &match->flow, value); |
2734 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
2735 | } |
2736 | ||
6a885fd0 BP |
2737 | static char * |
2738 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2739 | uint8_t *valuep, uint8_t *maskp) | |
2740 | { | |
6a885fd0 | 2741 | char *tail; |
1734bf29 JG |
2742 | const char *err_str = ""; |
2743 | int err; | |
6a885fd0 | 2744 | |
1734bf29 JG |
2745 | err = parse_int_string(s, valuep, mf->n_bytes, &tail); |
2746 | if (err || (*tail != '\0' && *tail != '/')) { | |
2747 | err_str = "value"; | |
6a885fd0 BP |
2748 | goto syntax_error; |
2749 | } | |
2750 | ||
2751 | if (*tail == '/') { | |
1734bf29 JG |
2752 | err = parse_int_string(tail + 1, maskp, mf->n_bytes, &tail); |
2753 | if (err || *tail != '\0') { | |
2754 | err_str = "mask"; | |
6a885fd0 BP |
2755 | goto syntax_error; |
2756 | } | |
2757 | } else { | |
1734bf29 | 2758 | memset(maskp, 0xff, mf->n_bytes); |
6a885fd0 BP |
2759 | } |
2760 | ||
6a885fd0 BP |
2761 | return NULL; |
2762 | ||
2763 | syntax_error: | |
1734bf29 JG |
2764 | if (err == ERANGE) { |
2765 | return xasprintf("%s: %s too large for %u-byte field %s", | |
2766 | s, err_str, mf->n_bytes, mf->name); | |
2767 | } else { | |
2768 | return xasprintf("%s: bad syntax for %s %s", s, mf->name, err_str); | |
2769 | } | |
6a885fd0 BP |
2770 | } |
2771 | ||
3d4b2e6e JS |
2772 | static char * |
2773 | mf_from_packet_type_string(const char *s, ovs_be32 *packet_type) | |
2774 | { | |
2775 | char *tail; | |
2776 | const char *err_str = ""; | |
2777 | int err; | |
2778 | ||
2779 | if (*s != '(') { | |
2780 | err_str = "missing '('"; | |
2781 | goto syntax_error; | |
2782 | } | |
2783 | s++; | |
2784 | err = parse_int_string(s, (uint8_t *)packet_type, 2, &tail); | |
2785 | if (err) { | |
2786 | err_str = "ns"; | |
2787 | goto syntax_error; | |
2788 | } | |
2789 | if (*tail != ',') { | |
2790 | err_str = "missing ','"; | |
2791 | goto syntax_error; | |
2792 | } | |
2793 | s = tail + 1; | |
2794 | err = parse_int_string(s, ((uint8_t *)packet_type) + 2, 2, &tail); | |
2795 | if (err) { | |
2796 | err_str = "ns_type"; | |
2797 | goto syntax_error; | |
2798 | } | |
2799 | if (*tail != ')') { | |
2800 | err_str = "missing ')'"; | |
2801 | goto syntax_error; | |
2802 | } | |
2803 | ||
2804 | return NULL; | |
2805 | ||
2806 | syntax_error: | |
2807 | return xasprintf("%s: bad syntax for packet type %s", s, err_str); | |
2808 | } | |
2809 | ||
6a885fd0 BP |
2810 | static char * |
2811 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
74ff3298 | 2812 | struct eth_addr *mac, struct eth_addr *mask) |
6a885fd0 | 2813 | { |
279fb135 | 2814 | int n; |
6a885fd0 | 2815 | |
279fb135 | 2816 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 | 2817 | |
279fb135 | 2818 | n = -1; |
74ff3298 | 2819 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(*mac), &n) |
279fb135 | 2820 | && n == strlen(s)) { |
74ff3298 | 2821 | *mask = eth_addr_exact; |
6a885fd0 | 2822 | return NULL; |
279fb135 | 2823 | } |
6a885fd0 | 2824 | |
279fb135 | 2825 | n = -1; |
c2c28dfd | 2826 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"%n", |
74ff3298 | 2827 | ETH_ADDR_SCAN_ARGS(*mac), ETH_ADDR_SCAN_ARGS(*mask), &n) |
279fb135 BP |
2828 | && n == strlen(s)) { |
2829 | return NULL; | |
6a885fd0 | 2830 | } |
279fb135 BP |
2831 | |
2832 | return xasprintf("%s: invalid Ethernet address", s); | |
6a885fd0 BP |
2833 | } |
2834 | ||
2835 | static char * | |
2836 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2837 | ovs_be32 *ip, ovs_be32 *mask) | |
2838 | { | |
cb22974d | 2839 | ovs_assert(mf->n_bytes == sizeof *ip); |
61440451 | 2840 | return ip_parse_masked(s, ip, mask); |
6a885fd0 BP |
2841 | } |
2842 | ||
2843 | static char * | |
2844 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
10f61b6d | 2845 | struct in6_addr *ipv6, struct in6_addr *mask) |
6a885fd0 | 2846 | { |
10f61b6d JP |
2847 | ovs_assert(mf->n_bytes == sizeof *ipv6); |
2848 | return ipv6_parse_masked(s, ipv6, mask); | |
6a885fd0 BP |
2849 | } |
2850 | ||
2851 | static char * | |
2852 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
50f96b10 | 2853 | const struct ofputil_port_map *port_map, |
6a885fd0 BP |
2854 | ovs_be16 *valuep, ovs_be16 *maskp) |
2855 | { | |
4e022ec0 | 2856 | ofp_port_t port; |
6a885fd0 | 2857 | |
cb22974d | 2858 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 | 2859 | |
50f96b10 | 2860 | if (ofputil_port_from_string(s, port_map, &port)) { |
4e022ec0 | 2861 | *valuep = htons(ofp_to_u16(port)); |
b8266395 | 2862 | *maskp = OVS_BE16_MAX; |
6a885fd0 | 2863 | return NULL; |
6a885fd0 | 2864 | } |
50f96b10 | 2865 | return xasprintf("%s: invalid or unknown port for %s", s, mf->name); |
6a885fd0 BP |
2866 | } |
2867 | ||
72333065 JR |
2868 | static char * |
2869 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
50f96b10 | 2870 | const struct ofputil_port_map *port_map, |
72333065 JR |
2871 | ovs_be32 *valuep, ovs_be32 *maskp) |
2872 | { | |
4e022ec0 | 2873 | ofp_port_t port; |
72333065 JR |
2874 | |
2875 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
50f96b10 | 2876 | if (ofputil_port_from_string(s, port_map, &port)) { |
72333065 | 2877 | *valuep = ofputil_port_to_ofp11(port); |
b8266395 | 2878 | *maskp = OVS_BE32_MAX; |
72333065 JR |
2879 | return NULL; |
2880 | } | |
2881 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2882 | } | |
2883 | ||
7257b535 BP |
2884 | struct frag_handling { |
2885 | const char *name; | |
2886 | uint8_t mask; | |
2887 | uint8_t value; | |
2888 | }; | |
2889 | ||
2890 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2891 | #define A FLOW_NW_FRAG_ANY |
2892 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2893 | /* name mask value */ |
2894 | ||
2895 | { "no", A|L, 0 }, | |
2896 | { "first", A|L, A }, | |
2897 | { "later", A|L, A|L }, | |
2898 | ||
2899 | { "no", A, 0 }, | |
2900 | { "yes", A, A }, | |
2901 | ||
2902 | { "not_later", L, 0 }, | |
2903 | { "later", L, L }, | |
2904 | #undef A | |
2905 | #undef L | |
2906 | }; | |
2907 | ||
2908 | static char * | |
2909 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2910 | { | |
2911 | const struct frag_handling *h; | |
2912 | ||
2913 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2914 | if (!strcasecmp(s, h->name)) { | |
2915 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2916 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2917 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2918 | *valuep = h->value; |
2919 | return NULL; | |
2920 | } | |
2921 | } | |
2922 | ||
2923 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
cc266ef0 | 2924 | "\"yes\", \"first\", \"later\", \"not_later\"", s); |
7257b535 BP |
2925 | } |
2926 | ||
8e4c1621 JG |
2927 | static char * |
2928 | parse_mf_flags(const char *s, const char *(*bit_to_string)(uint32_t), | |
2929 | const char *field_name, ovs_be16 *flagsp, ovs_be16 allowed, | |
2930 | ovs_be16 *maskp) | |
4fe3445a | 2931 | { |
8e4c1621 JG |
2932 | int err; |
2933 | char *err_str; | |
2934 | uint32_t flags, mask; | |
4fe3445a | 2935 | |
8e4c1621 JG |
2936 | err = parse_flags(s, bit_to_string, '\0', field_name, &err_str, |
2937 | &flags, ntohs(allowed), maskp ? &mask : NULL); | |
2938 | if (err < 0) { | |
2939 | return err_str; | |
2940 | } | |
4fe3445a | 2941 | |
8e4c1621 JG |
2942 | *flagsp = htons(flags); |
2943 | if (maskp) { | |
2944 | *maskp = htons(mask); | |
4fe3445a PS |
2945 | } |
2946 | ||
8e4c1621 | 2947 | return NULL; |
4fe3445a PS |
2948 | } |
2949 | ||
2950 | static char * | |
8e4c1621 | 2951 | mf_from_tcp_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
4fe3445a | 2952 | { |
8e4c1621 JG |
2953 | return parse_mf_flags(s, packet_tcp_flag_to_string, "TCP", flagsp, |
2954 | TCP_FLAGS_BE16(OVS_BE16_MAX), maskp); | |
4fe3445a PS |
2955 | } |
2956 | ||
61bf6666 | 2957 | static char * |
8e4c1621 | 2958 | mf_from_tun_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
61bf6666 | 2959 | { |
8e4c1621 | 2960 | return parse_mf_flags(s, flow_tun_flag_to_string, "tunnel", flagsp, |
b666962b | 2961 | htons(FLOW_TNL_PUB_F_MASK), maskp); |
61bf6666 JR |
2962 | } |
2963 | ||
07659514 JS |
2964 | static char * |
2965 | mf_from_ct_state_string(const char *s, ovs_be32 *flagsp, ovs_be32 *maskp) | |
2966 | { | |
2967 | int err; | |
2968 | char *err_str; | |
2969 | uint32_t flags, mask; | |
2970 | ||
2971 | err = parse_flags(s, ct_state_to_string, '\0', "ct_state", &err_str, | |
2972 | &flags, CS_SUPPORTED_MASK, maskp ? &mask : NULL); | |
2973 | if (err < 0) { | |
2974 | return err_str; | |
2975 | } | |
2976 | ||
2977 | *flagsp = htonl(flags); | |
2978 | if (maskp) { | |
2979 | *maskp = htonl(mask); | |
2980 | } | |
2981 | ||
2982 | return NULL; | |
2983 | } | |
2984 | ||
6a885fd0 BP |
2985 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2986 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2987 | char * | |
2988 | mf_parse(const struct mf_field *mf, const char *s, | |
50f96b10 | 2989 | const struct ofputil_port_map *port_map, |
6a885fd0 BP |
2990 | union mf_value *value, union mf_value *mask) |
2991 | { | |
3634dff8 BP |
2992 | char *error; |
2993 | ||
bedde04c | 2994 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2995 | memset(value, 0, mf->n_bytes); |
2996 | memset(mask, 0, mf->n_bytes); | |
2997 | return NULL; | |
2998 | } | |
2999 | ||
3000 | switch (mf->string) { | |
3001 | case MFS_DECIMAL: | |
3002 | case MFS_HEXADECIMAL: | |
3634dff8 BP |
3003 | error = mf_from_integer_string(mf, s, |
3004 | (uint8_t *) value, (uint8_t *) mask); | |
3005 | break; | |
6a885fd0 | 3006 | |
07659514 JS |
3007 | case MFS_CT_STATE: |
3008 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
3009 | error = mf_from_ct_state_string(s, &value->be32, &mask->be32); | |
3010 | break; | |
3011 | ||
6a885fd0 | 3012 | case MFS_ETHERNET: |
74ff3298 | 3013 | error = mf_from_ethernet_string(mf, s, &value->mac, &mask->mac); |
3634dff8 | 3014 | break; |
6a885fd0 BP |
3015 | |
3016 | case MFS_IPV4: | |
3634dff8 BP |
3017 | error = mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); |
3018 | break; | |
6a885fd0 BP |
3019 | |
3020 | case MFS_IPV6: | |
3634dff8 BP |
3021 | error = mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); |
3022 | break; | |
6a885fd0 BP |
3023 | |
3024 | case MFS_OFP_PORT: | |
50f96b10 BP |
3025 | error = mf_from_ofp_port_string(mf, s, port_map, |
3026 | &value->be16, &mask->be16); | |
3634dff8 | 3027 | break; |
7257b535 | 3028 | |
72333065 | 3029 | case MFS_OFP_PORT_OXM: |
50f96b10 BP |
3030 | error = mf_from_ofp_port_string32(mf, s, port_map, |
3031 | &value->be32, &mask->be32); | |
3634dff8 | 3032 | break; |
72333065 | 3033 | |
7257b535 | 3034 | case MFS_FRAG: |
3634dff8 BP |
3035 | error = mf_from_frag_string(s, &value->u8, &mask->u8); |
3036 | break; | |
4fe3445a PS |
3037 | |
3038 | case MFS_TNL_FLAGS: | |
cb22974d | 3039 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
3634dff8 BP |
3040 | error = mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
3041 | break; | |
3042 | ||
61bf6666 JR |
3043 | case MFS_TCP_FLAGS: |
3044 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); | |
3045 | error = mf_from_tcp_flags_string(s, &value->be16, &mask->be16); | |
3046 | break; | |
3047 | ||
3d4b2e6e JS |
3048 | case MFS_PACKET_TYPE: |
3049 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
3050 | error = mf_from_packet_type_string(s, &value->be32); | |
3051 | mask->be32 = OVS_BE32_MAX; | |
3052 | break; | |
3053 | ||
3634dff8 | 3054 | default: |
428b2edd | 3055 | OVS_NOT_REACHED(); |
6a885fd0 | 3056 | } |
3634dff8 BP |
3057 | |
3058 | if (!error && !mf_is_mask_valid(mf, mask)) { | |
3059 | error = xasprintf("%s: invalid mask for field %s", s, mf->name); | |
3060 | } | |
3061 | return error; | |
6a885fd0 BP |
3062 | } |
3063 | ||
3064 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
3065 | * successful, otherwise a malloc()'d string describing the error. */ | |
3066 | char * | |
50f96b10 BP |
3067 | mf_parse_value(const struct mf_field *mf, const char *s, |
3068 | const struct ofputil_port_map *port_map, union mf_value *value) | |
6a885fd0 BP |
3069 | { |
3070 | union mf_value mask; | |
3071 | char *error; | |
3072 | ||
50f96b10 | 3073 | error = mf_parse(mf, s, port_map, value, &mask); |
6a885fd0 BP |
3074 | if (error) { |
3075 | return error; | |
3076 | } | |
3077 | ||
3078 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
3079 | return xasprintf("%s: wildcards not allowed here", s); | |
3080 | } | |
3081 | return NULL; | |
3082 | } | |
3083 | ||
3084 | static void | |
3085 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
3086 | const uint8_t *maskp, struct ds *s) | |
3087 | { | |
6a885fd0 | 3088 | if (mf->string == MFS_HEXADECIMAL) { |
1734bf29 | 3089 | ds_put_hex(s, valuep, mf->n_bytes); |
6a885fd0 | 3090 | } else { |
1734bf29 JG |
3091 | unsigned long long int integer = 0; |
3092 | int i; | |
6a885fd0 | 3093 | |
1734bf29 | 3094 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 | 3095 | for (i = 0; i < mf->n_bytes; i++) { |
1734bf29 | 3096 | integer = (integer << 8) | valuep[i]; |
6a885fd0 | 3097 | } |
1734bf29 JG |
3098 | ds_put_format(s, "%lld", integer); |
3099 | } | |
6a885fd0 | 3100 | |
1734bf29 | 3101 | if (maskp) { |
6a885fd0 BP |
3102 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm |
3103 | * not sure that that a bit-mask written in decimal is ever easier to | |
3104 | * understand than the same bit-mask written in hexadecimal. */ | |
1734bf29 JG |
3105 | ds_put_char(s, '/'); |
3106 | ds_put_hex(s, maskp, mf->n_bytes); | |
6a885fd0 BP |
3107 | } |
3108 | } | |
3109 | ||
7257b535 | 3110 | static void |
8f75dea3 | 3111 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
3112 | { |
3113 | const struct frag_handling *h; | |
7257b535 | 3114 | |
eadef313 | 3115 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 3116 | value &= mask; |
7257b535 BP |
3117 | |
3118 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
3119 | if (value == h->value && mask == h->mask) { | |
3120 | ds_put_cstr(s, h->name); | |
3121 | return; | |
3122 | } | |
3123 | } | |
3124 | ds_put_cstr(s, "<error>"); | |
3125 | } | |
3126 | ||
4fe3445a | 3127 | static void |
b666962b | 3128 | mf_format_tnl_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) |
4fe3445a | 3129 | { |
b666962b JG |
3130 | format_flags_masked(s, NULL, flow_tun_flag_to_string, ntohs(value), |
3131 | ntohs(mask) & FLOW_TNL_PUB_F_MASK, FLOW_TNL_PUB_F_MASK); | |
4fe3445a PS |
3132 | } |
3133 | ||
61bf6666 JR |
3134 | static void |
3135 | mf_format_tcp_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) | |
3136 | { | |
3137 | format_flags_masked(s, NULL, packet_tcp_flag_to_string, ntohs(value), | |
8e4c1621 | 3138 | TCP_FLAGS(mask), TCP_FLAGS(OVS_BE16_MAX)); |
61bf6666 JR |
3139 | } |
3140 | ||
07659514 JS |
3141 | static void |
3142 | mf_format_ct_state_string(ovs_be32 value, ovs_be32 mask, struct ds *s) | |
3143 | { | |
3144 | format_flags_masked(s, NULL, ct_state_to_string, ntohl(value), | |
3145 | ntohl(mask), UINT16_MAX); | |
3146 | } | |
3147 | ||
3d4b2e6e JS |
3148 | static void |
3149 | mf_format_packet_type_string(ovs_be32 value, ovs_be32 mask, struct ds *s) | |
3150 | { | |
3151 | format_packet_type_masked(s, value, mask); | |
3152 | } | |
3153 | ||
6a885fd0 BP |
3154 | /* Appends to 's' a string representation of field 'mf' whose value is in |
3155 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
3156 | void | |
3157 | mf_format(const struct mf_field *mf, | |
3158 | const union mf_value *value, const union mf_value *mask, | |
50f96b10 | 3159 | const struct ofputil_port_map *port_map, |
6a885fd0 BP |
3160 | struct ds *s) |
3161 | { | |
3162 | if (mask) { | |
53cb9c3e | 3163 | if (is_all_zeros(mask, mf->n_bytes)) { |
6a885fd0 BP |
3164 | ds_put_cstr(s, "ANY"); |
3165 | return; | |
53cb9c3e | 3166 | } else if (is_all_ones(mask, mf->n_bytes)) { |
6a885fd0 BP |
3167 | mask = NULL; |
3168 | } | |
3169 | } | |
3170 | ||
3171 | switch (mf->string) { | |
72333065 JR |
3172 | case MFS_OFP_PORT_OXM: |
3173 | if (!mask) { | |
4e022ec0 | 3174 | ofp_port_t port; |
bc146369 | 3175 | ofputil_port_from_ofp11(value->be32, &port); |
50f96b10 | 3176 | ofputil_format_port(port, port_map, s); |
72333065 JR |
3177 | break; |
3178 | } | |
3179 | /* fall through */ | |
6a885fd0 BP |
3180 | case MFS_OFP_PORT: |
3181 | if (!mask) { | |
50f96b10 | 3182 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), port_map, s); |
6a885fd0 BP |
3183 | break; |
3184 | } | |
3185 | /* fall through */ | |
3186 | case MFS_DECIMAL: | |
3187 | case MFS_HEXADECIMAL: | |
3188 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
3189 | break; | |
3190 | ||
07659514 JS |
3191 | case MFS_CT_STATE: |
3192 | mf_format_ct_state_string(value->be32, | |
3193 | mask ? mask->be32 : OVS_BE32_MAX, s); | |
3194 | break; | |
3195 | ||
6a885fd0 | 3196 | case MFS_ETHERNET: |
74ff3298 | 3197 | eth_format_masked(value->mac, mask ? &mask->mac : NULL, s); |
6a885fd0 BP |
3198 | break; |
3199 | ||
3200 | case MFS_IPV4: | |
b8266395 | 3201 | ip_format_masked(value->be32, mask ? mask->be32 : OVS_BE32_MAX, s); |
6a885fd0 BP |
3202 | break; |
3203 | ||
3204 | case MFS_IPV6: | |
ac6d120f | 3205 | ipv6_format_masked(&value->ipv6, mask ? &mask->ipv6 : NULL, s); |
6a885fd0 BP |
3206 | break; |
3207 | ||
7257b535 | 3208 | case MFS_FRAG: |
8f75dea3 | 3209 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
3210 | break; |
3211 | ||
4fe3445a | 3212 | case MFS_TNL_FLAGS: |
b666962b JG |
3213 | mf_format_tnl_flags_string(value->be16, |
3214 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
4fe3445a PS |
3215 | break; |
3216 | ||
61bf6666 JR |
3217 | case MFS_TCP_FLAGS: |
3218 | mf_format_tcp_flags_string(value->be16, | |
3219 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
3220 | break; | |
3221 | ||
3d4b2e6e JS |
3222 | case MFS_PACKET_TYPE: |
3223 | mf_format_packet_type_string(value->be32, | |
3224 | mask ? mask->be32 : OVS_BE32_MAX, s); | |
3225 | break; | |
3226 | ||
6a885fd0 | 3227 | default: |
428b2edd | 3228 | OVS_NOT_REACHED(); |
6a885fd0 BP |
3229 | } |
3230 | } | |
816fd533 | 3231 | \f |
9bab681f IY |
3232 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
3233 | * least-significant bits in 'x'. | |
3234 | */ | |
3235 | void | |
3236 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
3237 | const union mf_subvalue *x, struct flow *flow) | |
3238 | { | |
3239 | const struct mf_field *field = sf->field; | |
3240 | union mf_value value; | |
3241 | ||
3242 | mf_get_value(field, flow, &value); | |
158edc8d | 3243 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
3244 | sf->ofs, sf->n_bits); |
3245 | mf_set_flow_value(field, &value, flow); | |
3246 | } | |
3247 | ||
81a76618 | 3248 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 3249 | * least-significant bits in 'x'. |
615660a9 | 3250 | */ |
1b35df45 BP |
3251 | void |
3252 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 3253 | struct match *match) |
1b35df45 BP |
3254 | { |
3255 | const struct mf_field *field = sf->field; | |
3256 | union mf_value value, mask; | |
3257 | ||
81a76618 | 3258 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
3259 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
3260 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
4f7b100c | 3261 | mf_set(field, &value, &mask, match, NULL); |
1b35df45 BP |
3262 | } |
3263 | ||
dfe191d5 JR |
3264 | void |
3265 | mf_write_subfield_value(const struct mf_subfield *sf, const void *src, | |
3266 | struct match *match) | |
3267 | { | |
3268 | const struct mf_field *field = sf->field; | |
3269 | union mf_value value, mask; | |
3270 | unsigned int size = DIV_ROUND_UP(sf->n_bits, 8); | |
3271 | ||
3272 | mf_get(field, match, &value, &mask); | |
3273 | bitwise_copy(src, size, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); | |
3274 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
3275 | mf_set(field, &value, &mask, match, NULL); | |
3276 | } | |
3277 | ||
35c1f798 BP |
3278 | /* 'v' and 'm' correspond to values of 'field'. This function copies them into |
3279 | * 'match' in the correspond positions. */ | |
3280 | void | |
3281 | mf_mask_subfield(const struct mf_field *field, | |
3282 | const union mf_subvalue *v, | |
3283 | const union mf_subvalue *m, | |
3284 | struct match *match) | |
3285 | { | |
3286 | union mf_value value, mask; | |
3287 | ||
3288 | mf_get(field, match, &value, &mask); | |
3289 | bitwise_copy(v, sizeof *v, 0, &value, field->n_bytes, 0, field->n_bits); | |
3290 | bitwise_copy(m, sizeof *m, 0, &mask, field->n_bytes, 0, field->n_bits); | |
4f7b100c | 3291 | mf_set(field, &value, &mask, match, NULL); |
35c1f798 BP |
3292 | } |
3293 | ||
1b35df45 BP |
3294 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
3295 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
3296 | void | |
3297 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
3298 | union mf_subvalue *x) | |
3299 | { | |
3300 | union mf_value value; | |
3301 | ||
3302 | mf_get_value(sf->field, flow, &value); | |
3303 | ||
3304 | memset(x, 0, sizeof *x); | |
3305 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
3306 | x, sizeof *x, 0, | |
3307 | sf->n_bits); | |
3308 | } | |
3309 | ||
816fd533 BP |
3310 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
3311 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
3312 | * less. */ | |
3313 | uint64_t | |
3314 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
3315 | { | |
3316 | union mf_value value; | |
3317 | ||
3318 | mf_get_value(sf->field, flow, &value); | |
3319 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
3320 | } | |
3321 | ||
9bab681f IY |
3322 | void |
3323 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
3324 | { | |
e7ae59f9 | 3325 | ds_put_hex(s, subvalue->u8, sizeof subvalue->u8); |
9bab681f | 3326 | } |
bc65c25a SH |
3327 | |
3328 | void | |
3329 | field_array_set(enum mf_field_id id, const union mf_value *value, | |
3330 | struct field_array *fa) | |
3331 | { | |
e8dba719 JR |
3332 | size_t i, offset = 0; |
3333 | ||
bc65c25a | 3334 | ovs_assert(id < MFF_N_IDS); |
e8dba719 JR |
3335 | |
3336 | /* Find the spot for 'id'. */ | |
3337 | BITMAP_FOR_EACH_1 (i, id, fa->used.bm) { | |
3338 | offset += mf_from_id(i)->n_bytes; | |
3339 | } | |
3340 | ||
3341 | size_t value_size = mf_from_id(id)->n_bytes; | |
3342 | ||
3343 | /* make room if necessary. */ | |
3344 | if (!bitmap_is_set(fa->used.bm, id)) { | |
3345 | fa->values = xrealloc(fa->values, fa->values_size + value_size); | |
3346 | /* Move remainder forward, if any. */ | |
3347 | if (offset < fa->values_size) { | |
3348 | memmove(fa->values + offset + value_size, fa->values + offset, | |
3349 | fa->values_size - offset); | |
3350 | } | |
3351 | fa->values_size += value_size; | |
3352 | } | |
bc65c25a | 3353 | bitmap_set1(fa->used.bm, id); |
e8dba719 JR |
3354 | |
3355 | memcpy(fa->values + offset, value, value_size); | |
bc65c25a | 3356 | } |
04f48a68 | 3357 | |
aafee638 YHW |
3358 | /* A wrapper for variable length mf_fields that is maintained by |
3359 | * struct vl_mff_map.*/ | |
3360 | struct vl_mf_field { | |
3361 | struct mf_field mf; | |
5c7c16d8 | 3362 | struct ovs_refcount ref_cnt; |
aafee638 YHW |
3363 | struct cmap_node cmap_node; /* In ofproto->vl_mff_map->cmap. */ |
3364 | }; | |
3365 | ||
04f48a68 YHW |
3366 | static inline uint32_t |
3367 | mf_field_hash(uint32_t key) | |
3368 | { | |
3369 | return hash_int(key, 0); | |
3370 | } | |
3371 | ||
5c7c16d8 YHW |
3372 | static void |
3373 | vmf_delete(struct vl_mf_field *vmf) | |
3374 | { | |
3375 | if (ovs_refcount_unref(&vmf->ref_cnt) == 1) { | |
3376 | /* Postpone as this function is typically called immediately | |
3377 | * after removing from cmap. */ | |
3378 | ovsrcu_postpone(free, vmf); | |
3379 | } else { | |
3380 | VLOG_WARN_RL(&rl, | |
3381 | "Attempted to delete VMF %s but refcount is nonzero!", | |
3382 | vmf->mf.name); | |
3383 | } | |
3384 | } | |
3385 | ||
3386 | enum ofperr | |
3387 | mf_vl_mff_map_clear(struct vl_mff_map *vl_mff_map, bool force) | |
04f48a68 YHW |
3388 | OVS_REQUIRES(vl_mff_map->mutex) |
3389 | { | |
aafee638 | 3390 | struct vl_mf_field *vmf; |
04f48a68 | 3391 | |
5c7c16d8 YHW |
3392 | if (!force) { |
3393 | CMAP_FOR_EACH (vmf, cmap_node, &vl_mff_map->cmap) { | |
3394 | if (ovs_refcount_read(&vmf->ref_cnt) != 1) { | |
3395 | return OFPERR_NXTTMFC_INVALID_TLV_DEL; | |
3396 | } | |
3397 | } | |
3398 | } | |
3399 | ||
aafee638 YHW |
3400 | CMAP_FOR_EACH (vmf, cmap_node, &vl_mff_map->cmap) { |
3401 | cmap_remove(&vl_mff_map->cmap, &vmf->cmap_node, | |
3402 | mf_field_hash(vmf->mf.id)); | |
5c7c16d8 | 3403 | vmf_delete(vmf); |
04f48a68 | 3404 | } |
5c7c16d8 YHW |
3405 | |
3406 | return 0; | |
04f48a68 YHW |
3407 | } |
3408 | ||
aafee638 | 3409 | static struct vl_mf_field * |
04f48a68 YHW |
3410 | mf_get_vl_mff__(uint32_t id, const struct vl_mff_map *vl_mff_map) |
3411 | { | |
aafee638 | 3412 | struct vl_mf_field *vmf; |
04f48a68 | 3413 | |
aafee638 | 3414 | CMAP_FOR_EACH_WITH_HASH (vmf, cmap_node, mf_field_hash(id), |
04f48a68 | 3415 | &vl_mff_map->cmap) { |
aafee638 YHW |
3416 | if (vmf->mf.id == id) { |
3417 | return vmf; | |
04f48a68 YHW |
3418 | } |
3419 | } | |
3420 | ||
3421 | return NULL; | |
3422 | } | |
3423 | ||
3424 | /* If 'mff' is a variable length field, looks up 'vl_mff_map', returns a | |
3425 | * pointer to the variable length meta-flow field corresponding to 'mff'. | |
3426 | * Returns NULL if no mapping is existed for 'mff'. */ | |
3427 | const struct mf_field * | |
3428 | mf_get_vl_mff(const struct mf_field *mff, | |
3429 | const struct vl_mff_map *vl_mff_map) | |
3430 | { | |
3431 | if (mff && mff->variable_len && vl_mff_map) { | |
aafee638 | 3432 | return &mf_get_vl_mff__(mff->id, vl_mff_map)->mf; |
04f48a68 YHW |
3433 | } |
3434 | ||
3435 | return NULL; | |
3436 | } | |
3437 | ||
5c7c16d8 YHW |
3438 | static enum ofperr |
3439 | mf_vl_mff_map_del(struct vl_mff_map *vl_mff_map, | |
3440 | const struct ofputil_tlv_table_mod *ttm, bool force) | |
04f48a68 YHW |
3441 | OVS_REQUIRES(vl_mff_map->mutex) |
3442 | { | |
3443 | struct ofputil_tlv_map *tlv_map; | |
5c7c16d8 YHW |
3444 | struct vl_mf_field *vmf; |
3445 | unsigned int idx; | |
04f48a68 | 3446 | |
5c7c16d8 YHW |
3447 | if (!force) { |
3448 | LIST_FOR_EACH (tlv_map, list_node, &ttm->mappings) { | |
3449 | idx = MFF_TUN_METADATA0 + tlv_map->index; | |
3450 | if (idx >= MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS) { | |
3451 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
3452 | } | |
3453 | ||
3454 | vmf = mf_get_vl_mff__(idx, vl_mff_map); | |
3455 | if (vmf && ovs_refcount_read(&vmf->ref_cnt) != 1) { | |
3456 | return OFPERR_NXTTMFC_INVALID_TLV_DEL; | |
3457 | } | |
3458 | } | |
04f48a68 YHW |
3459 | } |
3460 | ||
3461 | LIST_FOR_EACH (tlv_map, list_node, &ttm->mappings) { | |
5c7c16d8 | 3462 | idx = MFF_TUN_METADATA0 + tlv_map->index; |
04f48a68 YHW |
3463 | if (idx >= MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS) { |
3464 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
3465 | } | |
3466 | ||
5c7c16d8 YHW |
3467 | vmf = mf_get_vl_mff__(idx, vl_mff_map); |
3468 | if (vmf) { | |
3469 | cmap_remove(&vl_mff_map->cmap, &vmf->cmap_node, | |
aafee638 | 3470 | mf_field_hash(idx)); |
5c7c16d8 YHW |
3471 | vmf_delete(vmf); |
3472 | } | |
3473 | } | |
04f48a68 | 3474 | |
5c7c16d8 YHW |
3475 | return 0; |
3476 | } | |
04f48a68 | 3477 | |
5c7c16d8 YHW |
3478 | static enum ofperr |
3479 | mf_vl_mff_map_add(struct vl_mff_map *vl_mff_map, | |
3480 | const struct ofputil_tlv_table_mod *ttm) | |
3481 | OVS_REQUIRES(vl_mff_map->mutex) | |
3482 | { | |
3483 | struct ofputil_tlv_map *tlv_map; | |
3484 | struct vl_mf_field *vmf; | |
3485 | unsigned int idx; | |
3486 | ||
3487 | LIST_FOR_EACH (tlv_map, list_node, &ttm->mappings) { | |
3488 | idx = MFF_TUN_METADATA0 + tlv_map->index; | |
3489 | if (idx >= MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS) { | |
3490 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
04f48a68 | 3491 | } |
5c7c16d8 YHW |
3492 | |
3493 | vmf = xmalloc(sizeof *vmf); | |
3494 | vmf->mf = mf_fields[idx]; | |
3495 | vmf->mf.n_bytes = tlv_map->option_len; | |
3496 | vmf->mf.n_bits = tlv_map->option_len * 8; | |
3497 | vmf->mf.mapped = true; | |
3498 | ovs_refcount_init(&vmf->ref_cnt); | |
3499 | ||
3500 | cmap_insert(&vl_mff_map->cmap, &vmf->cmap_node, | |
3501 | mf_field_hash(idx)); | |
3502 | } | |
3503 | ||
3504 | return 0; | |
3505 | } | |
3506 | ||
3507 | /* Updates the tun_metadata mf_field in 'vl_mff_map' according to 'ttm'. | |
3508 | * This function must be invoked after tun_metadata_table_mod(). | |
3509 | * Returns OFPERR_NXTTMFC_BAD_FIELD_IDX, if the index for the vl_mf_field is | |
3510 | * invalid. | |
3511 | * Returns OFPERR_NXTTMFC_INVALID_TLV_DEL, if 'ttm' tries to delete an | |
3512 | * vl_mf_field that is still used by any active flow.*/ | |
3513 | enum ofperr | |
3514 | mf_vl_mff_map_mod_from_tun_metadata(struct vl_mff_map *vl_mff_map, | |
3515 | const struct ofputil_tlv_table_mod *ttm) | |
3516 | OVS_REQUIRES(vl_mff_map->mutex) | |
3517 | { | |
3518 | switch (ttm->command) { | |
3519 | case NXTTMC_ADD: | |
3520 | return mf_vl_mff_map_add(vl_mff_map, ttm); | |
3521 | ||
3522 | case NXTTMC_DELETE: | |
3523 | return mf_vl_mff_map_del(vl_mff_map, ttm, false); | |
3524 | ||
3525 | case NXTTMC_CLEAR: | |
3526 | return mf_vl_mff_map_clear(vl_mff_map, false); | |
3527 | ||
3528 | default: | |
3529 | OVS_NOT_REACHED(); | |
04f48a68 YHW |
3530 | } |
3531 | ||
3532 | return 0; | |
3533 | } | |
3534 | ||
3535 | /* Returns true if a variable length meta-flow field 'mff' is not mapped in | |
3536 | * the 'vl_mff_map'. */ | |
3537 | bool | |
3538 | mf_vl_mff_invalid(const struct mf_field *mff, const struct vl_mff_map *map) | |
3539 | { | |
3540 | return map && mff && mff->variable_len && !mff->mapped; | |
3541 | } | |
5c7c16d8 YHW |
3542 | |
3543 | void | |
3544 | mf_vl_mff_set_tlv_bitmap(const struct mf_field *mff, uint64_t *tlv_bitmap) | |
3545 | { | |
3546 | if (mff && mff->mapped) { | |
3547 | ovs_assert(mf_is_tun_metadata(mff)); | |
3548 | ULLONG_SET1(*tlv_bitmap, mff->id - MFF_TUN_METADATA0); | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | static void | |
3553 | mf_vl_mff_ref_cnt_mod(const struct vl_mff_map *map, uint64_t tlv_bitmap, | |
3554 | bool ref) | |
3555 | { | |
3556 | struct vl_mf_field *vmf; | |
3557 | int i; | |
3558 | ||
3559 | if (map) { | |
3560 | ULLONG_FOR_EACH_1 (i, tlv_bitmap) { | |
3561 | vmf = mf_get_vl_mff__(i + MFF_TUN_METADATA0, map); | |
3562 | if (vmf) { | |
3563 | if (ref) { | |
3564 | ovs_refcount_ref(&vmf->ref_cnt); | |
3565 | } else { | |
3566 | ovs_refcount_unref(&vmf->ref_cnt); | |
3567 | } | |
3568 | } else { | |
3569 | VLOG_WARN("Invalid TLV index %d.", i); | |
3570 | } | |
3571 | } | |
3572 | } | |
3573 | } | |
3574 | ||
3575 | void | |
3576 | mf_vl_mff_ref(const struct vl_mff_map *map, uint64_t tlv_bitmap) | |
3577 | { | |
3578 | mf_vl_mff_ref_cnt_mod(map, tlv_bitmap, true); | |
3579 | } | |
3580 | ||
3581 | void | |
3582 | mf_vl_mff_unref(const struct vl_mff_map *map, uint64_t tlv_bitmap) | |
3583 | { | |
3584 | mf_vl_mff_ref_cnt_mod(map, tlv_bitmap, false); | |
3585 | } | |
3586 | ||
3587 | enum ofperr | |
3588 | mf_vl_mff_nx_pull_header(struct ofpbuf *b, const struct vl_mff_map *vl_mff_map, | |
3589 | const struct mf_field **field, bool *masked, | |
3590 | uint64_t *tlv_bitmap) | |
3591 | { | |
3592 | enum ofperr error = nx_pull_header(b, vl_mff_map, field, masked); | |
3593 | if (error) { | |
3594 | return error; | |
3595 | } | |
3596 | ||
3597 | mf_vl_mff_set_tlv_bitmap(*field, tlv_bitmap); | |
3598 | return 0; | |
3599 | } | |
3600 | ||
3601 | enum ofperr | |
3602 | mf_vl_mff_nx_pull_entry(struct ofpbuf *b, const struct vl_mff_map *vl_mff_map, | |
3603 | const struct mf_field **field, union mf_value *value, | |
3604 | union mf_value *mask, uint64_t *tlv_bitmap) | |
3605 | { | |
731dbbbe | 3606 | enum ofperr error = nx_pull_entry(b, vl_mff_map, field, value, mask, true); |
5c7c16d8 YHW |
3607 | if (error) { |
3608 | return error; | |
3609 | } | |
3610 | ||
3611 | mf_vl_mff_set_tlv_bitmap(*field, tlv_bitmap); | |
3612 | return 0; | |
3613 | } | |
3614 | ||
3615 | enum ofperr | |
3616 | mf_vl_mff_mf_from_nxm_header(uint32_t header, | |
3617 | const struct vl_mff_map *vl_mff_map, | |
3618 | const struct mf_field **field, | |
3619 | uint64_t *tlv_bitmap) | |
3620 | { | |
3621 | *field = mf_from_nxm_header(header, vl_mff_map); | |
c5358a96 BP |
3622 | if (!*field) { |
3623 | return OFPERR_OFPBAC_BAD_SET_TYPE; | |
3624 | } else if (mf_vl_mff_invalid(*field, vl_mff_map)) { | |
5c7c16d8 YHW |
3625 | return OFPERR_NXFMFC_INVALID_TLV_FIELD; |
3626 | } | |
3627 | ||
3628 | mf_vl_mff_set_tlv_bitmap(*field, tlv_bitmap); | |
3629 | return 0; | |
3630 | } | |
4e413ac8 BP |
3631 | \f |
3632 | /* Returns true if the 1-bits in 'super' are a superset of the 1-bits in 'sub', | |
3633 | * false otherwise. */ | |
3634 | bool | |
3635 | mf_bitmap_is_superset(const struct mf_bitmap *super, | |
3636 | const struct mf_bitmap *sub) | |
3637 | { | |
3638 | return bitmap_is_superset(super->bm, sub->bm, MFF_N_IDS); | |
3639 | } | |
95a5454c BP |
3640 | |
3641 | /* Returns the bitwise-and of 'a' and 'b'. */ | |
3642 | struct mf_bitmap | |
3643 | mf_bitmap_and(struct mf_bitmap a, struct mf_bitmap b) | |
3644 | { | |
3645 | bitmap_and(a.bm, b.bm, MFF_N_IDS); | |
3646 | return a; | |
3647 | } | |
3648 | ||
3649 | /* Returns the bitwise-or of 'a' and 'b'. */ | |
3650 | struct mf_bitmap | |
3651 | mf_bitmap_or(struct mf_bitmap a, struct mf_bitmap b) | |
3652 | { | |
3653 | bitmap_or(a.bm, b.bm, MFF_N_IDS); | |
3654 | return a; | |
3655 | } | |
3656 | ||
3657 | /* Returns the bitwise-not of 'x'. */ | |
3658 | struct mf_bitmap | |
3659 | mf_bitmap_not(struct mf_bitmap x) | |
3660 | { | |
3661 | bitmap_not(x.bm, MFF_N_IDS); | |
3662 | return x; | |
3663 | } |